CN2564278Y - Forming device for spring shaper - Google Patents

Abstract

Disclosed is a mold head apparatus of a spring molding machine, comprising a rotation control mechanism, a straight-line moving mechanism, a rotating head and a mold head; wherein, the rotating head is provided with a protruding column and is driven to rotate by the rotation control mechanism; the mold head is fixed on the central shaft of the straight-line moving mechanism so that the mold head can be driven to make reciprocating straight-line movement; the mold head is provided with a plurality of block bodies which form channels which thread through the diameter center; the corner end of each block body takes the shape of an arc and the radians of the arcs are different. When the end of the spring needs bending after winding, the straight-line moving mechanism is started to enable the mold head to extend outward so as to make the wires cross through one of the channels and make the rotation control mechanism to be started to drive the rotating head to rotate, and one of the block bodies is used as the fulcrum and the protruding column as the pre-stress point, in this way the wires are bent into the set angle. When the mold head retracts, the spring wires can be bent into different angles by shifting the rotation angle. .

Description

The die head device of spring forming machine

Technical field

The utility model relates to a kind of die head device of spring forming machine, and particularly a kind of die head with linear telescopic cooperates the swivel head with spinfunction, rotation transformation angle again after it can shrink die head; And the spring end finish when reeling be need bend the time, and then can control this die head stretches out with the guiding wire rod, again by the swivel head rotation so that wire rod is bent; Described die head also is equipped with a plurality of blocks with different radians, and can dismantle easily and assemble, in order to bend out the spring crotch of multiple different angles and radian.

Background technology

General spring forming machine is when making spring, with spring wire by form more right on, following delivery wheel is with its clamping and after constantly a face suitable length is passed through in conveying, utilize the shaped device that is located on the face end bending forming of spring wire to be gone out the crotch of predetermined angular earlier, and then continue spring wire conveying passing through face, cooperate the guiding device that is located at face, allow wire rod when continuing, be wound into spring by guiding device, utilize the shaped device be located on the face that the wire rod of the spring other end is given bending forming subsequently again and go out crotch, utilize again at last cutting means with the spring wire severing to finish the spring finished product.

In order to cooperate spring wire is molded multiple crotch angle, not even with the requirement of the crooked radian of crotch, general equal many composing types device must be set on face, therefore, the shaped device that causes on the face to be installed is complicated too much and too, and manufacturing cost is also very high.Spring forming machine afterwards is designed to have can be with the shunting device of spring wire rotation; In other words, when needing bending forming to go out the crotch of various angles by the spring wire behind the face, as long as by predefined, after computer program control shunting device rotates predetermined angle with spring wire, wherein a composing type device of order molds crotch with spring wire and gets final product again, just the quantity that is located at the shaped device on the face can be saved thus, thereby the too little problem of crotch angle of required bending can be overcome.

Yet aforementioned conventional springs make-up machine with commentaries on classics line function but still has following shortcoming:

Though one can utilize a composing type device end of spring to be bent out the crotch of various angles, but the crotch radian that a composing type device can form out also has only a kind of, if when needing the multiple different radian of conversion, just need the molding die that many groups possess different radians is set, so still can't allow manufacturing cost further descend.

Two, be used for control spring wire rod rotation,, also directly improved manufacturing cost so that cooperate shaped device that the mechanism of spring wire bending is complicated.

Therefore, at the existing shortcoming of above-mentioned conventional springs make-up machine, the utility model after having proposed to improve.

The utility model content

First purpose of the present utility model is to provide a kind of die head device of spring forming machine, this die head can be assembled easily or dismounting and changing, described die head has a plurality of blocks, each block all has the angle end of different radians, bent again during the angle end that can provide that spring wire is resisted against different radians, only utilize a die head can obtain the crooked radian of multiple different radians,, thereby make manufacturing cost reduce with complicated shaped device in the replacement conventional springs make-up machine.

Second purpose of the present utility model is to provide a kind of die head device of spring forming machine, its include can the various angles of controlled rotation swivel head, by the projection that this swivel head is set spring wire is implemented bending and can be obtained various bending angles, with complicated commentaries on classics line mechanism in the replacement conventional springs make-up machine, and then make manufacturing cost reduce.

Based on above-mentioned purpose, the die head device of spring forming machine provided by the utility model includes a rotation control mechanism, a straight-line motion mechanism, a swivel head and a die head; This swivel head has a projection, and swivel head is driven by rotation control mechanism and rotates; This die head is fixed on the central shaft of straight-line motion mechanism and can be driven does linear reciprocating motion; This die head has a plurality of blocks, constitutes the passage by the diameter center between described block and the block, and the angle end of each block all forms circular arc, and the radian of each circular arc is all inequality.When the spring end after coiling is finished need bend, this straight-line motion mechanism is to start so that die head stretches out, and then make wire rod pass a wherein passage, make this rotation control mechanism startup again and make the swivel head rotation, and then utilize wherein that a block is fulcrum, and projection is that the point of application bends out predetermined angle to wire rod; Then can the rotation transformation angle after die head shrinks, spring wire is bent out different angles.

The die head device of spring forming machine provided by the utility model specifically comprises:

One rotation control mechanism, it has the cylindrical shell of a hollow, and this cylindrical shell is provided with driven gear, and this driven gear is engaged in a driving gear, and this driving gear is rotated by a servo motor driven;

One straight-line motion mechanism, it has a central shaft that is arranged in the described cylindrical shell, and this central shaft is connected in a straight line driving element; Described straight-line motion mechanism can be a pneumatic cylinder;

One swivel head, it is fixed on the described cylindrical shell, and this swivel head is provided with a centre bore and a projection;

One die head, it has a plurality of blocks, constitutes the passage by the diameter center between described block and the block, the angle end of each block all forms circular arc, and the radian of each circular arc is all inequality, and this die head is fixed in this central shaft, and makes die head pass the centre bore of this swivel head.

Description of drawings

Fig. 1 is the stereogram of die head device mode of appearance of the present utility model;

Fig. 2 is the integrally-built section plan of die head device of the present utility model;

Fig. 3 A to Fig. 3 F is a serial embodiment floor map of utilizing die head of the present utility model that spring wire is bent;

Fig. 4 is the embodiment partial perspective view of spring wire by the passage of the utility model die head;

Fig. 5 is that die head device of the present utility model is arranged at the side plan view on the face.

The specific embodiment

For further specifying other purposes of the present utility model and function, elaborate below in conjunction with accompanying drawing.

To shown in Figure 5, in the die head device of the present utility model, comprise rotation control mechanism 1, cylindrical shell 11, driven gear 12 as Fig. 1, driving gear 13, servo motor 14, driving shaft 141, swivel head 15, projection 151, hole 152, bolt 16, slide 17, straight-line motion mechanism 2, central shaft 21, screw 210, shaft coupling 22, pneumatic cylinder 23, die head 3, block 31, circular arc 311, passage 32, bolt 4, spring wire 5, face 6, outlet face 61, and track 62.

Referring to Fig. 1 and Fig. 2, the die head device of spring forming machine provided by the utility model, its better embodiment comprises: a rotation control mechanism 1, a straight-line motion mechanism 2, a swivel head 15 and a die head 3.Wherein, described rotation control mechanism 1 has the cylindrical shell 11 of a hollow, and this cylindrical shell 11 is combined with driven gear 12 regularly, and the end of cylindrical shell 11 is provided with a plurality of screws 111; 12 of this driven gears are engaged in a driving gear 13, and driving gear 13 is the driving shafts 141 that are matched with a servo motor 14, start when driving driving gear 13 rotations by servo motor 14, drive cylindrical shells 11 by driven gear 12 simultaneously and rotate.Described swivel head 15 has the projection 151 of a centre bore and a protuberate, and be provided with the hole 152 of a plurality of screw 111 positions corresponding to described cylindrical shell 11 end faces at the end face of swivel head 15, after utilizing bolt 16 to pass this hole 152, lock screw 111 again, thereby swivel head 15 and cylindrical shell 11 are fixed together.

The preferred embodiment of described straight-line motion mechanism 2 comprises: a central shaft 21 and a straight line action element, this straight line actuation element is to adopt pneumatic cylinder 23 in embodiment of the present utility model, and between the cylinder axle of pneumatic cylinder 23 and central shaft 21, connect, thereby can drive central shafts 21 by pneumatic cylinder 23 and do straight reciprocating motion with shaft coupling 22.Described central shaft 21 ends are provided with screw 210, and central shaft 21 is arranged in the hollow inside of this cylindrical shell 11.Described straight-line motion mechanism 2 further is provided with a slide 17, and this slide 17 is matched with the track 62 (as shown in Figure 5) on the face 6 that fixedly is located at the spring forming machine, and slide 17 can be slided on track 62.

Die head 3 provided by the utility model, end face at a rounded nose is provided with a plurality of blocks 31, those blocks 31 can be directly to cut in cylindrical several diametric(al)s to form, and directly between block 31 and block 31, constitute passage 32 by the diameter center, the angle end of each block 31 all forms circular arc 311, and the radian of each circular arc 311 is all inequality; This center of 3 of getting to know is provided with through hole, and bolt 4 is locked the screw 210 of central shaft 21 after by this through hole again, so that die head 3 and axle 21 are fixed together, and makes die head 3 pass the centre bore of swivel head 15.

Aforementioned die head device of the present utility model is the side (as Fig. 4 and shown in Figure 5) that is assembled in the face 6 of spring forming machine, and make the terminal 61 of passage 32 1 sides of die head 3, but swivel head 15 is to remain in the position that does not touch spring wire 5 at ordinary times corresponding to face 6.When spring wire 5 is transferred and spring wire 5 need be done repeatedly bending by terminal 61, other power set then drive slide 17 and move and make swivel head 15 near terminal 61, the pneumatic cylinder 23 of this straight-line motion mechanism 2 is restarted and is driven central shaft 21 and moves then, so that die head 3 outstanding swivel heads 15 and fixing, so that spring wire 5 is by the passage 32 (as shown in Figure 3A) of die head 3, owing to driving swivel head 15, the action of rotation control mechanism 1 turns clockwise then, and then to make spring wire 5 be fulcrum with block 31, cooperates projection 151 to act on spring wire 5 again and spring wire 5 is bent out first crotch (shown in Fig. 3 B); 15 of this projections rotated back to original position with work swivel head 15 after bending was finished, and spring wire 5 then continues to be transferred the passage 32 outer (shown in Fig. 3 C) that stretches out die head 3; Control swivel head 15 then and be rotated counterclockwise almost 360 ° of opposite sides (shown in Fig. 3 D), and make projection 151 continue again spring wire 5 application of forces are carried out the bending second time (shown in Fig. 3 E) with spring wire 5 to touch spring wire 5; Last projection 151 is returned to the position shown in Fig. 3 D with work swivel head 15, and spring wire 5 then is transferred advance (shown in Fig. 3 F) again, and then waits for the processing of next processing procedure.

When the bending work of spring wire 5 is finished and need be wound into the spring of spiral, described pneumatic cylinder 23 is that the direction that drives central shaft 21 past pneumatic cylinders 23 moves, and then make die head 3 shrink the inside that enters cylindrical shell 11, die head 3 and spring wire 5 broken away from, facilitate the use other shaping jig (not shown) and guide spring wire 5 and mold helical spring.

A plurality of blocks 31 that the utility model is arranged on the die head 3 are similar to segment, and all form the circular arc 311 of different radians at the angle of each block end, fulcrum when the position of this circular arc 311 is bending spring wire 5, thereby after the circular arc 311 of different radians can allow spring wire be bent, form different crooked radians in its bending place.By die head of the present utility model, if when needing to change the helical spring of producing different bending radians, as long as bolt 4 is screwed out, again die head 3 is unloaded and rotate suitable angle, so that other passage 32 corresponds to the terminal 61 of face 6, be the fulcrum of the circular arc 311 of convertible other block 31, thereby reach the purpose of the different radians of bending as spring wire 5.

It is the bent crotch that goes out various angles and radian that aforementioned device of the present utility model, its needs utilize one group of die head to cooperate swivel head, thereby can significantly simplify shaping mechanism, and then the reduction manufacturing cost.

The above only is in order to explain preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction; therefore, allly do relevant any modification of the present utility model or change in that identical creation spirit is following, all be included in the protection domain of the present utility model.

Claims (2)

1. the die head device of a spring forming machine is characterized in that, it includes:

One rotation control mechanism, it has the cylindrical shell of a hollow, and this cylindrical shell is provided with driven gear, and this driven gear is engaged in a driving gear, and this driving gear is rotated by a servo motor driven;

One straight-line motion mechanism, it has a central shaft that is arranged in the described cylindrical shell, and this central shaft is connected in a straight line driving element;

One swivel head, it is fixed in described cylindrical shell, and this swivel head is provided with a centre bore and a projection;

One die head, it has a plurality of blocks, constitutes the passage by the diameter center between described block and the block, the angle end of each block all forms circular arc, and the radian of each circular arc is all inequality, and this die head is fixed in this central shaft, and makes die head pass the centre bore of this swivel head.

2. the die head device of spring forming machine according to claim 1 is characterized in that, described straight-line motion mechanism is a pneumatic cylinder.

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