CN100506457C - Welding apparatus - Google Patents
Welding apparatus Download PDFInfo
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- CN100506457C CN100506457C CNB031586147A CN03158614A CN100506457C CN 100506457 C CN100506457 C CN 100506457C CN B031586147 A CNB031586147 A CN B031586147A CN 03158614 A CN03158614 A CN 03158614A CN 100506457 C CN100506457 C CN 100506457C
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Abstract
A welding apparatus provided with lower electrode portions (5), upper electrode portions (6), and a cooling water circulation duct (14) which circulates and supplies cooling water to welding electrode pressurizing cylinder guns (13) on the upper electrode portions (6). And, a check valve (15) is disposed on an upstream side to the cylinder guns (13) in the cooling water circulation duct (14). Further, a booster (16) is disposed on a downstream side to the cylinder guns (13) in the cooling water circulation duct (14), and the cylinder guns (13) are extended for welding by pressurizing the cooling water in the duct (14) from the booster (16) to the check valve (15) through the cylinder guns (13).
Description
Related application
The application submits to " Takao Kinzoku Kogyo Co., Ltd.'s name ", and application number is 00102225.3, and the applying date is on February 14th, 2000, and denomination of invention dividing an application for the application for a patent for invention of " welding equipment ".
Technical field
The present invention relates to a kind of welding equipment.
Background technology
Under the conventional situation, a kind of like this welding equipment is well-known, as shown in figure 16, it provide one have infrabasal plate part a and can promote so as near and leave the backup die part c of the upper substrate part b of this infrabasal plate part a, a plurality of bottom electrode part d that are arranged on the infrabasal plate part a, a plurality of top electrode part e that are arranged on the upper substrate part b, and a rising driving mechanism that makes upper substrate part b raise and reduce.Top electrode part e has welding electrode press cylinder welding gun g, welding gun is not providing recirculated cooling water under the pressurized state, and its pressurized contacts with welding object on placing bottom electrode part d under pressurized state, and each hydraulic cylinder welding gun g all links to each other with recirculated cooling water supplying duct h.And a booster i is arranged on the conduit h in the upstream side of hydraulic cylinder welding gun g, and a choke valve j is arranged on the conduit h in the downstream of hydraulic cylinder welding gun g.In Figure 16, a plurality of hydraulic cylinder welding guns constitute one group, and provide a booster i and a choke valve j corresponding to this group.That is to say that correspond respectively to many group hydraulic cylinder welding gun g, this welding equipment correspondingly provides a plurality of booster i and choke valve j.
At the not pressurized state of hydraulic cylinder welding gun g, booster i and choke valve j all are in open mode, and cooling water supplies to hydraulic cylinder welding gun g by conduit h circulation.When welding, choke valve j and booster i are subjected to effect and become closed condition, to choke valve j the cooling water in the conduit are pressurizeed through hydraulic cylinder welding gun g by making automatic pressure intensifier i, and this hydraulic cylinder welding gun extends, contact with the welding object f on placing bottom electrode part d, and it is welded.
Yet there are some problems in this, and booster i and choke valve j need big installing space, but only uses once or twice in a production cycle, and its utilization rate causes high cost with each booster i and the corresponding magnetic valve of choke valve j relatively.And recently, pressed part and pad tend to rapid increase always, the therefore corresponding increase of top electrode in a welding equipment with the bottom electrode part, thus the number of components such as booster is increased, cause the complex structure of equipment.In addition, also have a problem directly related with weldability, promptly in traditional welding gun pressurized control, being controlled in the production cycle and can not setting separately of a plurality of (for example 18) booster is so to be forced to be constant to this welding parameter of pressurized control.
And, this welding equipment provides the power unit (not shown) in substrate holder n side, provide in backup die part c side the following contact conductor p that bottom electrode part d compartment of terrain is electrically connected to power unit with top electrode part e compartment of terrain is electrically connected to power unit on contact conductor g.Owing to these reasons, also exist some problems, for example the cost height of backup die part c, and because the attaching space of infrabasal plate part a top, it is big that backup die part c becomes, and because (between power unit and the backup die c) current path is long, make current efficiency not good.
Summary of the invention
In order to address the above problem, therefore an object of the present invention is to provide a kind of welding equipment, adopt this equipment can simplified structure and reduce production costs, can increase work efficiency, can make welding quality stable.
Based on above-mentioned purpose, the invention provides a kind of welding equipment, it provides a backup die part, it has infrabasal plate part and a upper substrate part, at least one in them be activated rise and decline make mutual freedom near and separate; Provide a plurality of bottom electrode parts that are connected to the infrabasal plate part; Provide a plurality of top electrode parts that are connected to upper substrate part, it has at pressurized state not provides cooling water, and presses against the fillet welding in the vertical position receiving electrode press cylinder welding gun that welds on the welding object that places on the bottom electrode part under pressurized state; It comprises a kind of like this structure, wherein, described welding electrode press cylinder welding gun provides a main part, one inserts the piston rod part that described main part can be free to slide, the extension rod part and one that is connected to the end of the described piston rod part of protruding from described main part with removably is connected to the electrode head of the end of described extension rod part; Formation tapered peripheral surface and the hole portion in described extension rod bottom partly are formed with the taper inner circumferential surface on the end of described piston rod part, and the described tapered peripheral surface of the described taper inner circumferential surface of described extension rod part and described piston rod part constitutes interference fit; And on the end of described extension rod part, be formed with tapered peripheral surface, and on the female parts of electrode head, be formed with the taper inner circumferential surface, and the described tapered peripheral surface of the described taper inner circumferential surface of described electrode head and described extension rod part constitutes interference fit; And the external diameter of described piston rod part, the external diameter of described extension rod part and the external diameter of described electrode head are identical.
Description of drawings
The present invention is described in detail below with reference to the accompanying drawings, wherein:
Fig. 1 is the schematic diagram of structure of the preferred embodiment of expression welding equipment of the present invention;
Fig. 2 is the structural representation that expression promotes driving mechanism;
Fig. 3 A is the work schematic diagram of the not pressurized state of expression welding electrode press cylinder welding gun;
Fig. 3 B is the work schematic diagram of the pressurized state of expression welding electrode press cylinder welding gun;
Fig. 4 is the schematic diagram of another preferred embodiment structure of expression welding equipment;
Fig. 5 is the work schematic diagram of the not pressurized state of expression welding electrode press cylinder welding gun;
Fig. 6 is the work schematic diagram of the pressurized state of expression welding electrode press cylinder welding gun;
Fig. 7 be expression backup die part, on contact conductor and contact the schematic diagram that the position of conductor and power unit concerns down;
Fig. 8 is the schematic side elevation of upper and lower contact conductor of expression and surrounding structure thereof;
Fig. 9 is the schematic elevational view of upper and lower contact conductor of expression and surrounding structure thereof;
Figure 10 is the top view that the major part of contact conductor is gone up in expression;
Figure 11 is half cross-sectional view of expression fillet welding in the vertical position receiving electrode press cylinder welding gun;
Figure 12 is the side view of expression transverse weld electrode press cylinder welding gun;
Figure 13 is the schematic elevational view of expression transverse weld electrode press cylinder welding gun;
Figure 14 is the work schematic diagram of expression welded condition;
Figure 15 A is the schematic diagram of the connection status of expression one welding gun gallon sensor;
Figure 15 B is the schematic diagram of the connection status of this welding gun gallon sensor of expression; And
Figure 16 is the schematic diagram of expression conventional example.
The specific embodiment
To describe the preferred embodiments of the present invention in conjunction with the accompanying drawings now.
Fig. 1 and Fig. 2 have provided the preferred embodiment of welding equipment of the present invention.This welding equipment provides a backup die part 3, it has infrabasal plate part 1 and upper substrate part 2, wherein they at least one be activated and can promote, make upper substrate part and infrabasal plate part can be free mutually near and separate, and backup die part 3 is connected on the substrate holder 4 removably.And, on infrabasal plate part 1, be furnished with a plurality of bottom electrode parts 5, and on upper substrate part 2, be furnished with a plurality of top electrode parts 6.
Specifically, upper substrate part 2 is arranged on the substrate holder 4, can promote, and top electrode part 6 is subjected to promoting the driving of driving mechanism 8 with 2 risings of upper substrate part.This lifting driving mechanism 8 provides one and is connected on the substrate holder 4, is used to guide the vertical guide stem 7 that upper substrate part 2 is free to slide in vertical direction, a nut portion 9 that is arranged on the upper substrate part 2, one be arranged vertically in substrate holder 4, free to rotate and screw in helical axis 10 in the nut portion 9 and one and drive the motor 11 that helical axis 10 rotates.Moment of torsion is delivered to helical axis 10 from motor 11 by rotating power transmission part (such as belt, belt pulley etc.).12 expressions alleviate the balance weight of motor 11 loads.(by increasing the power of motor 11, above-mentioned balance weight 12 can be omitted.)
And in this welding equipment, top electrode part 6 has a welding electrode press cylinder welding gun 13, it provides cooling water at pressurized state, and contacting with welding object W on placing bottom electrode part 5, and the cooling water circulation conduit 14 that provides each hydraulic cylinder welding gun 13 of promising each top electrode part 6 cooling water to be provided and it is circulated at the pressurized state pressurized.This cooling water is sent from not shown apparatus for supplying cool water, and the direction by arrow A in conduit 14 circulates.
In addition, as shown in figures 1 and 3, in welding equipment of the present invention, a check-valves 15 is arranged on the cooling water circulation conduit 14 in the upstream side of hydraulic cylinder welding gun 13, and a booster 16 is arranged on the cooling water circulation conduit 14 in the downstream of hydraulic cylinder welding gun 13.In this case, a plurality of hydraulic cylinder welding guns 13 of hydraulic cylinder welding gun 13 or predetermined number constitute one group, and corresponding to this group hydraulic cylinder welding gun 13 check-valves 15 and a booster 16 are arranged.That is to say that this welding equipment provides a plurality of check-valves 15 and a plurality of booster 16, correspond respectively to many group hydraulic cylinder welding guns 13.And the magnetic valve of the compressed air direction of the supply of booster 16 is supplied with in conversion of label 17 expressions.As mentioned above, hydraulic cylinder welding gun 13 is defined as one or constitute a plurality of hydraulic cylinder welding guns of one group in the present invention.
Fig. 3 A provides the not pressurized state (non-welded condition) of hydraulic cylinder welding gun 13.In this state, the cooling water that flows by cooling water circulation conduit 14 is sequentially to circulate by check-valves 15, hydraulic cylinder welding gun 13 and booster 16.In welding, upper substrate part 2 drops to predetermined height and position by the described lifting driving mechanism 8 of reference Fig. 2, automatic pressure intensifier 16 is by the cooling water of hydraulic cylinder welding gun 13 toward check valve 15 in the conduit 14, by being converted to, magnetic valve 17 shown in Fig. 3 B, makes booster 16 become closed condition to be pressurizeed, check-valves 15 close and therefore hydraulic cylinder welding gun 13 (along with hydraulic pressure) stretch out, and the electrode head 18 of hydraulic cylinder welding gun 13 is forced on the welding object W that places on the bottom electrode part 5 and welds.The offset part branch shows that cooling water is in pressurized state.In this case, 4 hydraulic cylinder welding guns 13 in a group stretch out simultaneously and weld (referring to Fig. 1).
And, after the welding, as shown in Figure 3A, make booster 16 become open mode by conversion electromagnetic valve 17 once more, check-valves is opened, cooling water circulates once more, the hydraulic cylinder welding gun 13 that provides compressed air (seeing arrow b) becomes retracted state, and separates with bottom electrode part 5.
As mentioned above, unshowned other group hydraulic cylinder welding gun also is same in Fig. 3 A and 3B, and each organizes the hydraulic cylinder welding gun also is by corresponding to each group hydraulic cylinder welding gun each booster 16 being opened and closed to stretch out and bounce back, welding.
And, as shown in Figure 4 and Figure 5, have at welding equipment of the present invention under the situation of many top electrode parts 6 (for example 72 parts), booster 16 corresponding to many groups of predetermined one or more top electrode parts 6 is arranged on the coolant guide pipe 14 in the downstream of hydraulic cylinder welding gun 13, check-valves 15 corresponding to each group hydraulic cylinder welding gun 13 is arranged on the conduit 14 in the upstream side of hydraulic cylinder welding gun, branch valve 19 is arranged between hydraulic cylinder welding gun 13 and the booster 16 corresponding to each group hydraulic cylinder welding gun 13, can be connected to booster 16 certainly to making booster 16 side conversion of not working.
Specifically mention the preferred embodiment among Fig. 4, be furnished with many groups, every group of four top electrode parts 6 (hydraulic cylinder welding gun 13), as first group 31, second groups 32, the 3rd groups 33, the 4th groups 34, the 5th groups 35 or the like.And, be furnished with a booster 16 corresponding to four groups of hydraulic cylinder welding guns 13, and be furnished with a check-valves 15 and a branch valve 19 corresponding to every group of hydraulic cylinder welding gun 13.That is to say that in Fig. 4, a booster 16a is corresponding to four groups, promptly first group 31 to the 4th group 34.
And, the cooling water circulation conduit that links to each other with not shown apparatus for supplying cool water is told many first brasnch conducts 21 in upstream portion, and cooling water is sequentially by each first brasnch conduct 21, each check-valves 15, respectively organize hydraulic cylinder welding gun 13 and branch valve 19 flow (referring to Fig. 5).And the hydraulic cylinder welding gun 13 in a group and first brasnch conduct 21 are tandem UNICOMs.
And, as shown in Figure 4 and Figure 5,, be furnished with second brasnch conduct 22 that is connected to booster 16 sides, and be furnished with and make booster 16 idle the 3rd brasnch conducts 23 at the downstream side of branch valve 19.In this case, four second brasnch conducts 22 corresponding to four branch valve 19 are merged into as a conduit, it arrives the apparatus for supplying cool water (not shown) by a booster 16, and merges into a conduit that is connected to the apparatus for supplying cool water (not shown) corresponding to four the 3rd brasnch conducts 23 of four branch valve 19.That is to say that cooling water circulation conduit 14 is made up of first brasnch conduct 21, second brasnch conduct 22, the 3rd brasnch conduct 23 etc.
And, provide air duct 24,25,26 and 27 as shown in Figure 4, deliver to each booster 16, each branch valve 19 and each hydraulic cylinder welding gun 13 by air duct 24,25,26 and 27 by the compressed air (as arrow B) that not shown air compressor provides.And, label 28 expressions one electropneumatic controller, the booster valve that label 29 expressions are returned welding gun, and jar of label 30 expressions.
Fig. 4 and Fig. 5 represent respectively to organize the not pressurized state (non-welded condition) of hydraulic cylinder welding gun 13, and each branch valve 19 is converted to and closes each second brasnch conduct 22.Therefore, the cooling water that flows in cooling water circulation conduit 14 turns back to apparatus for supplying cool water by each check-valves 15, each hydraulic cylinder welding gun 13 and each branch valve 19.
Under the situation of welding, for example as shown in Figure 6, at first, make booster 16 (16a) be connected to second brasnch conduct 22 by the branch valve of changing corresponding to first group 31 19 (19a) with first group 31 top electrode part 6.Along with being transformed into close fork conduit 23 corresponding to the magnetic valve 20 of branch valve 19a and opening brasnch conduct 22, piston valve part 36 is moved by sending into compressed air.Then, cooling water by branch valve 19a and hydraulic cylinder welding gun 13a automatic pressure intensifier 16 toward check valve 15 in the conduit 14 is because the operation of booster 16 increases pressure, check-valves 15 cuts out, therefore and hydraulic cylinder welding gun 13a stretches out, and the electrode head 18 of hydraulic cylinder welding gun 13a is urged on the welding object W that places on the bottom electrode part 5 and welds (referring to Fig. 4).Offset part divides the expression cooling water to be in pressurized state.In this case, the hydraulic cylinder welding gun 13 of other group is in not pressurized state (non-welded condition), the cooling waters that provide continuous circulation such as promptly second group 32, the 3rd group 33, the 4th groups 34.
And after the welding, as shown in Figure 5, check-valves 15a opens, and cooling water circulation once more by opening booster 16a and transition branch valve 19a, the hydraulic cylinder welding gun 13a that provides compressed air (representing with arrow B) turns back to retracted state.
Next, under the situation of welding with second group 32 top electrode part 6, be similar to above-mentioned explanation, four hydraulic cylinder welding guns 13 of second group 32 stretch out the cooling water pressurization by conversion corresponding to second group 32 branch valve 19b and the operation of booster 16a.As mentioned above, the 3rd of top electrode part 6 the group 33 and the 4th groups 34 hydraulic cylinder welding gun 13 can sequentially stretch out and weld.And, welding respectively organizing under the situation that top electrode part 6 carries out after by the 5th group 35, equally also be select and manipulation corresponding to the booster 16 and the branch valve 19. of each group
The order of welding is not freely to set corresponding to the magnetic valve 17 of booster 16 with corresponding to the magnetic valve 20 of each group of branches valve 19 but can pass through control since first group 31.And welding can be organized simultaneously more and carry out, and for example, the top electrode part 6 of first group 31 top electrode part 6 and the 4th group 34 is worked simultaneously and welded.And, can control the electrode pressurization of each pad by booster 16, and weld and can carry out with high accuracy.
Although provided the situation of a booster 16 corresponding to four groups of top electrode parts 6 in the present embodiment, booster 16 can be corresponding to one to three group or top electrode part 6 more than five groups.Number for one group top electrode part 6 can freely be determined.And under the situation less corresponding to the number of the group of a booster 16, for example under 16 situations corresponding to one group of top electrode part 6 of a booster, branch valve 19 can be omitted.
As shown in Figure 7, this welding equipment provides a power unit (transmission) 37 on substrate holder 4, substrate holder 4 sides provide and contact conductor 38 and contact conductor 39 with in top electrode part 6 and the power unit 37 interval electrical connections down what bottom electrode part 5 and power unit 37 were electrically connected at interval after backup die part 3.
In more detailed description, shown in Fig. 7 and Fig. 8-10, be furnished with the level table part 40 of substrate holder 4 in the back of the infrabasal plate part 1 of backup die part 3, and travel(l)ing rest 42 is arranged on the level table part 40 by pair of straight line-oriented device 41, so that slide in front and back.Above-mentioned power unit 37 is connected on the travel(l)ing rest 42.
And travel(l)ing rest 42 forwardly has a vertical fixed support 45, and a pair of extension hydraulic cylinder 46 vertically is connected to the top of vertical fixing support 45.And a sliding part 48 is arranged in the front side on vertical fixing support 45 tops by pair of straight line-oriented device 47, so that vertically slide, the upper end of extending hydraulic cylinder 46 is connected to the part of protruding backward of sliding part 48.That is to say that by extending stretching out and bouncing back of hydraulic cylinder 46, sliding part 48 can move both vertically.
By on the front that horizontally is fixed on sliding part 48, and four contact conductors 50 are arranged in the front of hydraulic cylinder 44 with predetermined space for four last hydraulic cylinders 44 that stretch out and shrink.Then, the lower ends of four last fexible conductors (flow distribution plate) 52 are electrically connected to the binding post 51 of power unit 37 respectively, and upward the upper end of fexible conductor is electrically connected to contact conductor 50 respectively.In addition, on contact the rod end that conductor 39 is connected respectively to hydraulic cylinder 44, and contact conductor 39 is inserted in the hole that forms on each contact conductor 50 on each.In this case, on contact conductor 39 and insert these holes slide so that can contact conductor 50 front and back relatively, seesaw by last hydraulic cylinder 44, and therefore electric current can flow between power unit 37 and top electrode part 6.
And four following hydraulic cylinders 49 are fixed on the bottom of front of vertical fixing support 45 of substrate holder 4 corresponding to four positions of going up hydraulic cylinders 44, and four contact conductors 53 are arranged in down the front of hydraulic cylinder 49.And the upper end of four following fexible conductors (flow distribution plate) 55 is electrically connected with another terminals 54 of power unit 37 respectively, and down the lower end of fexible conductor 55 respectively with contact conductor 53 electrical connections.In addition, following contact conductor 38 is connected to down the rod end of hydraulic cylinder 49 respectively, and each time contact conductor 38 is inserted in the hole that respectively contacts formation on the conductor 53.In this case, following contact conductor 38 inserts this hole, can slide with respect to contact conductor 53 front and back, seesaw by following hydraulic cylinder 49, and therefore electric current can flow between power unit 37 and bottom electrode part 5.Contacting conductor 38 down is arranged in and the about identical position of the height of infrabasal plate part 1.
In welding, as shown in Figure 8, upper substrate part 2 drops to a predetermined height and position, travel(l)ing rest 42 moves forward to a precalculated position of backup die part 3 sides by reciprocator's (not shown), so upward contact the conductor 39 end surfaces 2a of close upper substrate part 2 in the horizontal, and contact the conductor 38 end surfaces 1a of close infrabasal plate part 1 in the horizontal down.By going up sliding part 48, the height and position of last contact conductor 39 is adjusted to height and position after upper substrate 2 descends in advance by extending vertical in advance the moving of hydraulic cylinder 46.
Then, as Fig. 7 and shown in Figure 10, predetermined a pair of go up contact conductor 39 and contact conductor 38 down travel forward by last hydraulic cylinder 44 and following hydraulic cylinder 49, contact the end face 2a that conductor 39 contacts upper substrate parts 2 this on, and contact the end face 1a that conductor 38 contacts infrabasal plate parts 1 down.Upper substrate part 2 and infrabasal plate part 1 are made of conductive material.And, the welding electrode press cylinder welding gun 43 of predetermined top electrode part 6 is by the cooling water supercharging, hydraulic cylinder welding gun 13 stretches out and is pressed in the welding object W that places on the bottom electrode part 5 goes up (as mentioned above), therefore welding current flows in top electrode part 6 with between corresponding to the bottom electrode part 5 of top electrode part 6, and makes welding object W obtain welding.
For example providing four pairs of top electrode parts 6 and bottom electrode part 5, and each is under the situation of all welding as shown in Figure 7, corresponding to each to top electrode part 6 and bottom electrode part 5 each on contact conductor 39 with under contact conductor 38 order and contact to weld with infrabasal plate part 1 with upper substrate part 2.In addition, insulate with insulating materials between each bottom electrode part 5.Thereby, prevent that welding current is diverted to other bottom electrode part 5 sides (not producing kinetic current) by the welding object W in the welding, and welding current can concentrate on the pad by insulation.And, when many top electrode part 6 and bottom electrode part 5 constituted one group, and respectively organize bottom electrode part 5 be insulation the time, welding is not produce under the situation of kinetic current to carry out in each group.
And Fig. 7 and Figure 11 have provided half cross-sectional view of fillet welding in the vertical position receiving electrode press cylinder welding gun 13 (with reference to Fig. 1, Fig. 3 and Fig. 7 explanation).This fillet welding in the vertical position receiving electrode press cylinder welding gun 13 provides a main part 57 that is connected on the welding gun connector 56 (being connected to upper substrate part 2) of top electrode part 6, insert main part 57, so that the hydraulic cylinder piston rod part 58 that is free to slide, be connected to the hydraulic cylinder extension rod part 59 of the end of the piston rod 58 that autonomous agent part 57 protrudes out and the electrode head 60 that is connected to the end of extension rod part 59 with removably.
And, on the end of piston rod part 58, form tapered peripheral surface 67 and the hole portion in the bottom of extension rod part 59 is formed with taper inner circumferential surface 68, and the tapered peripheral surface 67 of the taper inner circumferential surface 68 of extension rod part 59 and piston rod part 58 constitutes interference fits.And, on the end of extension rod part 59, be formed with a tapered peripheral surface 70, and on the female parts 69 of electrode head 60, be formed with a taper inner circumferential surface 61, and the tapered peripheral surface 70 of the taper inner circumferential surface 71 of electrode head 60 and extension rod part 59 constitutes interference fits.
That is to say, by preparing many extension rod parts with diameter D ' of different length L, overall diameter D and electrode head, can easily be replaced by another root extension rod part 59 that is suitable for specific weld operation (welding object W) with the extension rod part 59 that dismountable form links to each other with piston rod part 58, and can in fault, change fast.Therefore, do not need piston rod 58 is disassembled from main part 57, operating efficiency improves thus.And, preferably prepare electrode head 60 corresponding to various extension rod parts 59.
And, according to the difference of welding position, can be as Figure 12 to the transverse weld electrode press cylinder welding gun 13 of on top electrode part 6, arranging shown in Figure 14.That is to say, when the position of the pad that welds object W is on the facade, adopt this hydraulic cylinder welding gun 13.This transverse hydraulic cylinder welding gun 13 provides its upper end and is connected to the main part 72 that has in the lower end on the upper substrate part 2 of protruding connector 73, one inserts the piston rod part 74 that main part 72 can vertically be free to slide, one is connected thereto the coupling part 75 on the lower end of the piston rod part 74 that end autonomous agent part 72 protrudes out, one one end connects the protrusion connector 73 of main part 72 and the other end is connected to the vibration coupling part 76 of the lower end of coupling part 75, has electrode head 77 and is connected to the electrode chunk part 78 of vibration coupling part 76 with removably.
And piston rod part 74 has a bifurcated connector 85 that connecting hole arranged in the lower end, and the shaft portion 75 with a connecting hole places between a pair of connector 85a, and the upper end of shaft portion 75 is connected to connector 85a with connecting axle 86, so that free vibration.
And, vibration coupling part 76 by rectangle chunk part 87, be arranged as upper surface with chunk part 87 and constitute isoplanar thin-walled portion 88 and a pair ofly have connecting hole and form from the connector 89 that the upper surface of chunk part 87 and thin-walled portion 88 protrudes.The lower end of shaft portion 75 places between a pair of connector 89 on chunk part 87 sides.Vibration coupling part 76 usefulness connecting axles 90 are connected on the shaft portion 75, but free vibration, and the lower end of protrusion connector 73 places between a pair of connector 89 and with connecting axle 91 and links to each other.
And electrode chunk part 78 has an inner groovy that is open upwards 98, and the chunk part 87 of vibration coupling part 76 is assembled in this inner groovy 98, and electrode chunk part 78 links to each other with chunk part 87 with two bolts 92.Label 93 expressions one fexible conductor.One end of fexible conductor 93 links to each other with main part 72 with bolt, and the other end links to each other with electrode chunk part 78 with bolt.
Then, in welding, the electrode head 77 of 2 declines of upper substrate part and hydraulic cylinder welding gun 13 is near the vertical surface of welding object W, piston rod part 78 descends by the effect of the cooling water hydraulic pressure in the cavity 80 that is in electrode pressurized state shown in Figure 14, and therefore the electrode head 77 of electrode chunk part 78 welds from laterally pressing against on the welding object W by 76 vibrations of vibration coupling part.
According to this transverse hydraulic cylinder welding gun 13, the welding gun connector can omit or simplify, and hydraulic cylinder welding gun 13 can be arranged in the backup die part 3.So the position that can not weld with conventional method may become, and the welding scope can enlarge (number of pad increases).In addition, the welding that is suitable for welding object W can multiplely have different structure and electrodes sized chunk part 78 is carried out by preparing, because electrode chunk part 78 is demountable.
And shown in Figure 15 A and 15B, in welding equipment of the present invention, electrode press cylinder welding gun 13 can provide a welding gun gallon sensor 94, is used for the welding current of exploring electrode and welding quality level is carried out nondestructive testing.Welding gun gallon sensor 94 usefulness of this plate-like are made the molded epoxy resins insulation of coil with hydraulic cylinder welding gun 13 as the same material (for example brass) of electrically-conductive backing plate.Label 99 expression one wire, its in the future the detectable signal of autobiography sensor 94 be sent to the input amplifier side.The winding number of coil is according to determining at the detecting voltage of input amplifier side with the current field of actual measurement.And this sensor 94 provides a connecting hole 95 at the center, and sensor 94 places between hydraulic cylinder welding gun 13 and the fexible conductor 96, and fixing with bolt 97, so that electrode conductor is by hydraulic cylinder welding gun itself.
Then, welding gun gallon sensor 94 is connected to each of a plurality of hydraulic cylinder welding guns 13 in the welding equipment, welding current is surveyed (current field detection) and is measured and judgement by each hydraulic cylinder welding gun 13, for example, whether check has the electric current of setting ampere to flow, so, the resistance situation of each current path, actual welded condition, the time that electrode is changed etc. can obtain detecting.Although shown in Figure 15 is that a vertical solution cylinder pressure welding gun 13 provides sensor 94, also provide sensor 94 with reference to the described transverse hydraulic cylinder of Figure 12 to Figure 14 welding gun 13.
According to welding equipment of the present invention, can obtain the simplification of structure and the reduction of production cost, because can omit necessary choke valve and circuit in the traditional approach.And the part exchanging of equipment and maintenance become easily, and because adopt little check-valves 15, change the erecting bed and become easy.And equipment can be directly connected on following platen connector that equipment can not be connected of conventional situation, the length of pipeline of cooling water circulation conduit 14 can shorten, because the expansion of the high-pressure hose of pipeline causes the delay of hydraulic cylinder welding gun pressurization to reduce, therefore improve in the pressurization with kinetic force.
And, in welding equipment with a plurality of top electrode parts 6, by making a branch valve 19 corresponding with one group of top electrode part 6 with a check-valves 15, the number of booster 16 can significantly reduce, for example, Unit 18 under conventional situation reduce to Unit 4, and by reducing the workload and the space of assembling, the pipeline layout becomes easily and production cost can reduce.And, adopt the pneumatosphere adjuster by pressure control to booster 16, can carry out the pressurized control of each pad, can realize the welding of high accuracy and stay-in-grade multiple spot thus.That is to say, the control of electrode plus-pressure, the welding parameter of this stable welding quality can be set up.
Although the hydraulic pressure in the pressure sensor detection hydraulic cylinder welding gun must be set every conduit of many boosters under conventional situation, be accompanied by the minimizing of the number of booster 16 in the present invention, the number of pressure sensor can significantly reduce.
In addition, the structure that promotes driving mechanism 8 becomes simply, and the part number and the production cost of drive system can reduce and reduce.And, because can change platen height (height of platen) and can must be lower, so reduced the Master Cost of backup die part with the platen height setting.In addition, the replacing of platen can be carried out automatically, and productivity ratio improves.
And according to welding equipment of the present invention, the structure of backup die part 3 can be simplified, and production cost can reduce, because can omit the big contact part in the backup die part 3, so backup die part 3 can densification.And, current path (between power unit 37 and the backup die part 3) shortens, current efficiency improves, and the galvano-cautery (because rough surface with contact the contact point alligatoring that spark that insufficient pressure produces causes) that results from the electric current contact surface of upper platen under the conventional situation is eliminated.
And, by preparing multiple diameter D ' with different length L, outer diameter D and electrode head, and can be in fault quick-replaceable extension rod part 59, can easily be replaced by the extension rod part 59 that another root is suitable for specific weld operation (welding object W) with the extension rod part 59 that removably is connected on the piston rod part 58.That is to say that do not need and will pull down on the piston rod 58 autonomous agent parts 57, operability improves thus.So the general scope of application of main part 57 has enlarged, therefore equipment cost reduces.
And the connector of welding gun can omit or simplify, and hydraulic cylinder welding gun 13 can be arranged within the backup die part 3.Be accompanied by this point, nonweldable position is welded into possibility under conventional situation, so can enlarge welding scope (increasing the number of pad).In addition, because electrode chunk part 78 is dismountable, so by preparing the multiple welding that different structure and electrodes sized chunk part 48 can easily be suitable for specific weld object W that has.
In addition, according to welding equipment of the present invention, by with being connected to the welding gun gallon sensor 94 probe current magnetic fields of each welding electrode press cylinder welding gun 13, can learn the resistance situation, actual welding state, electrode replacing time of each current path etc.That is to say, can reduce the detection of welding product.
Although the preferred embodiments of the present invention are illustrated in this specification, be appreciated that the present invention be intended to the signal and unrestricted because in the scope of essence of the present invention and indispensable characteristic, can carry out multiple change.
Claims (1)
1. welding equipment, it provides a backup die part (3), it has an infrabasal plate part (1) and a upper substrate part (2), at least one in them be activated rise and decline make mutual freedom near and separate; Provide a plurality of bottom electrode parts (5) that are connected to infrabasal plate part (1); Provide a plurality of top electrode parts (6) that are connected to upper substrate part (2), it has at pressurized state not provides cooling water, and presses against the fillet welding in the vertical position receiving electrode press cylinder welding gun (13) that welds on the welding object (W) that places on the bottom electrode part (5) under pressurized state; It comprises a kind of like this structure, wherein,
Described welding electrode press cylinder welding gun (13) provides a main part (57), one inserts the piston rod part (58) that described main part (57) can be free to slide, the extension rod part (59) and one that is connected to the end of the described piston rod part of protruding from described main part (57) (58) with removably is connected to the partly electrode head (60) of the end of (59) of described extension rod;
On the end of described piston rod part (58), form tapered peripheral surface (67) and the hole portion in the bottom of described extension rod part (59) is formed with taper inner circumferential surface (68), and the described tapered peripheral surface (67) of the described taper inner circumferential surface (68) of described extension rod part (59) and described piston rod part (58) constitutes interference fit; And
On the end of described extension rod part (59), be formed with tapered peripheral surface (70), and on the female parts (69) of electrode head (60), be formed with taper inner circumferential surface (71), and the described taper inner circumferential surface (71) of described electrode head (60) and partly described tapered peripheral surface (70) the formation interference fit of (59) of described extension rod; And
The external diameter of the external diameter of described piston rod part (58), described extension rod part (59) and the external diameter of described electrode head (60) are identical.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP145797/1999 | 1999-05-26 | ||
| JP145797/99 | 1999-05-26 | ||
| JP14579799A JP3335322B2 (en) | 1999-05-26 | 1999-05-26 | Welding equipment |
| JP162147/99 | 1999-06-09 | ||
| JP162147/1999 | 1999-06-09 | ||
| JP16214799A JP3335324B2 (en) | 1999-06-09 | 1999-06-09 | Welding equipment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001022253A Division CN1161202C (en) | 1999-05-26 | 2000-02-14 | Welding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1509835A CN1509835A (en) | 2004-07-07 |
| CN100506457C true CN100506457C (en) | 2009-07-01 |
Family
ID=26476824
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03158616 Expired - Lifetime CN1260037C (en) | 1999-05-26 | 2000-02-14 | Welding apparatus |
| CNB031586147A Expired - Lifetime CN100506457C (en) | 1999-05-26 | 2000-02-14 | Welding apparatus |
| CNB001022253A Expired - Lifetime CN1161202C (en) | 1999-05-26 | 2000-02-14 | Welding equipment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03158616 Expired - Lifetime CN1260037C (en) | 1999-05-26 | 2000-02-14 | Welding apparatus |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001022253A Expired - Lifetime CN1161202C (en) | 1999-05-26 | 2000-02-14 | Welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN1260037C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4943917B2 (en) * | 2007-03-30 | 2012-05-30 | 本田技研工業株式会社 | Welding apparatus and welding method |
| SE533823C2 (en) * | 2008-07-11 | 2011-01-25 | Esab Ab | Cooling device for welding device |
| CN102319936B (en) * | 2011-08-17 | 2013-10-09 | 河南五建建设集团有限公司 | Welding plant for copper-aluminum composite tube heat exchangers |
| CN103962695B (en) * | 2013-02-04 | 2016-06-15 | 日本亚比欧尼克斯股份有限公司 | Welder |
| CN104084685A (en) * | 2014-05-12 | 2014-10-08 | 昆山华焊科技有限公司 | Detector for nut welding position |
| CN106624245A (en) * | 2016-08-27 | 2017-05-10 | 三之信（天津）自动化设备有限公司 | Multi-spotting welding machine |
-
2000
- 2000-02-14 CN CN 03158616 patent/CN1260037C/en not_active Expired - Lifetime
- 2000-02-14 CN CNB031586147A patent/CN100506457C/en not_active Expired - Lifetime
- 2000-02-14 CN CNB001022253A patent/CN1161202C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1275460A (en) | 2000-12-06 |
| CN1260037C (en) | 2006-06-21 |
| CN1509836A (en) | 2004-07-07 |
| CN1161202C (en) | 2004-08-11 |
| CN1509835A (en) | 2004-07-07 |
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