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Publication numberCN103934333 A
Publication typeApplication
Application numberCN 201410147223
Publication date23 Jul 2014
Filing date14 Apr 2014
Priority date14 Apr 2014
Also published asCN103934333B
Publication number201410147223.0, CN 103934333 A, CN 103934333A, CN 201410147223, CN-A-103934333, CN103934333 A, CN103934333A, CN201410147223, CN201410147223.0
Inventors郭丽超
Applicant郭丽超
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Linear type heating furnace tube bending technology
CN 103934333 A
Abstract
The invention discloses a linear type heating furnace tube bending technology. According to the technology, a furnace tube bending device is used and comprises a left machine frame (13) and a pushing and pressing mechanism (10), the pushing and pressing mechanism (10) is located on the right side of the left machine frame (13), a dovetail guide rail (15) is fixedly connected to the rear portion of the right side of the left machine frame (13) and extends horizontally in the left-right direction, the left end of the dovetail guide rail (15) is fixedly connected with the left machine frame (13), the right end of the dovetail guide rail (15) is in sliding connection with a dovetail groove in the rear portion of the pushing and pressing mechanism (10), a through hole allowing a furnace tube to penetrate through is formed in the front portion of the left machine frame (13), and three hydraulic bending devices (9) are arranged on the dovetail guide rail (15) from left to right in sequence in a sliding mode and located between the left machine frame (13) and the pushing and pressing mechanism (10).
Claims(1)  translated from Chinese
1.用夹具位置传感器并进行去应力退火的直线型炉管弯曲工艺,其使用一种炉管弯曲设备,所述炉管弯曲设备包括左机架(13)和推压机构(10),推压机构(10)在左机架(13)右方,所述左机架(13)的右侧后部固定连接有燕尾导轨(15),燕尾导轨(15)在左右方向上水平延伸,燕尾导轨(15)的左端与所述左机架(13)固定连接,燕尾导轨(15)的右端与推压机构(10)的后部中的燕尾槽滑动连接,所述左机架(13)的前部设置有供炉管穿过的一个通孔;所述燕尾导轨(15)上在所述左机架(13)和推压机构(10)之间从左至右依次滑动设置有三个弯曲液压装置(9);推压机构(10)的左侧前部固定设置有第一夹具(I ),左机架(13)的右侧前部固定设置有第二夹具(4),在所述左机架(13)和推压机构(10)之间设置有前导轨,所述前导轨在第二夹具(4)和第一夹具(I)之间直线延伸,并且当推压机构(10)沿着所述燕尾导轨(15)滑动时,第一夹具(I)能够沿着前导轨朝向第二夹具(4)滑动;所述前导轨上在第二夹具(4)和第一夹具(I)之间还滑动地设置有第三夹具(3)和第四夹具(2),四个所述夹具(1、2、3、4)均包括夹具基体、后夹块(41)和前夹块(42),每个所述夹具的所述后夹块(41)和前夹块(42)均沿着在所述炉管发生平面弯曲时的弯曲平面中的前后方向而相对地设置,并在夹具基体上能够实现接触夹紧和分离松开的动作;其中,所述后夹块(41)均位于所述前导轨后方,并且为长方体形状,所述前夹块(82、42)均位于所述前导轨前方,且为圆柱体形状;所述长方体形状和圆柱体形状的纵向轴线均垂直于所述炉管发生平面弯曲时的弯曲平面; 其中,所述第二夹具(4)的后夹块的右侧面上设置有向右侧延伸的右延伸限位块(43),所述第一夹具(I)的后夹块的左侧面上均设置有向左侧延伸的左延伸限位块(14),第三夹具(3)和第四夹具(2)的后夹块的左、右侧面上均分别地设置有向左侧延伸的左延伸限位块和向右侧延伸的右延伸限位块; 所述三个弯曲液压装置(9)中的每个均包括驱动液压缸,所述驱动液压缸相对于燕尾导轨(15)的纵向轴线垂直设置,并且能够在燕尾导轨(15)上滑动;所述驱动液压缸的液压杆末端铰接有弯曲滚(91),并且驱动液压缸能够沿着与燕尾导轨(15)垂直的方向驱动对弯曲滚(91)施加向前的弯管推力;所述三个弯曲液压装置(9)中的每个均还包括行走驱动机构,用以分别地驱动相应的弯曲液压装置(9)沿着燕尾导轨(15)滑动到不同位置; 所述推压机构(10)的右侧设置有支撑杆伸缩机构(12),支撑杆伸缩机构(12)设置在所述燕尾导轨(15)的前方,支撑杆伸缩机构(12)具有伸缩性支撑杆(120),伸缩性支撑杆(120)从推压机构(10)的右侧穿过离开推压机构(10)的左侧并能够用于伸入到所述炉管内,从而起到支撑炉管防止炉管发生不期望弯曲的作用,并能够在支撑杆伸缩机构(12)的驱动下在左右方向上往复移动; 所述炉管弯曲工艺包括如下步骤: A.提供直线型炉管(19); B.将所述直线型炉管穿入所述左机架(13)上的一个通孔并向右推进,直至所述直线型炉管要进行弯曲加工的长度部分伸出于所述左机架(13); C.所述第二夹具(4)将所述直线型炉管的左端夹紧; D.推压机构(10)运动,以使得第一夹具(I)夹紧直线型炉管的右端; E.第三夹具(3)和第四夹具(2)在第二夹具(4)和第一夹具(I)之间对直线型炉管夹紧,并使得第二夹具(4)、第三夹具(3)、第四夹具(2)和第一夹具(I)将直线型炉管的所述前臂分隔成长度相等的三个长度段;所述前导轨上固定设置有左夹具位置感知传感器和右夹具位置感知传感器,其中,所述前导轨的左夹具位置感知传感器当第三夹具(3)的位置与其对应时被触发从而发出信号,所述前导轨的右夹具位置感知传感器当第四夹具(2)的位置与其对应时被触发从而发出信号;前导轨上的所述夹具位置感知传感器在前导轨上定位成有助于实现将炉管的相应加工段分成所述长度相等的三个长度段(所述位置感知传感器可以是霍尔效应传感器、以及磁效应传感器等,或者可以一个是霍尔效应传感器,另一个是磁效应传感器); F.所述三个弯曲液压装置(9)中的每个使其弯曲滚(91)分别接触所述三个长度段中相应的每个长度段的中点; G.推压机构(10)的支撑杆伸缩机构(12)将伸缩性支撑杆(120)伸入直线型炉管的管内,并留下所述三个长度段中的左起第一个长度段未被支撑,左起第二和第三个长度段被支撑; H.左侧的弯曲液压装置(9)的弯曲滚开始向外顶压所述第一个长度段,从而使其发生直线形弯曲,推压机构(10)随着弯曲的进行而同步地跟随推压,同时,第三夹具(3)、第四夹具(2)也同步地跟随运动;在顶压的过程中,左侧的弯曲液压装置(9)在其行走驱动机构的驱动下向左运动,从而使其弯曲滚保持对应于所述第一个长度段中点的位置;到第一夹具(4)的右延伸限位块(43)和第三夹具(3)的左延伸限位块接触时,所述左侧的弯曲液压装置(9)的弯曲滚停止顶压,并且推压机构(10)停止继续向前推压; i.推压机构(10)的支撑杆伸缩机构(12)将伸缩性支撑杆(120)回缩,从而使得留下所述三个长度段中的左起第一个长度段和左起第二个长度段均未被支撑,左起第三个长度段被支撑; J.中间的弯曲液压装置(9)开始顶压所述左起第二个长度段,直至第三夹具(3)的右延伸限位块与第四夹具(2)的左延伸限位块接触; K.推压机构(10)使得所述支撑杆(120)完全回缩,以使三个长度段均未被支撑; L.右侧的弯曲液压装置(9)开始顶压所述左起第三个长度段,直至第四夹具(2)的右延伸限位块与第一夹具(1)的左延伸限位块接触; M.各个夹具松开,取走弯曲加工完毕的加热炉炉管; N.将弯曲加工完毕的加热炉炉管放入去应力热处理炉进行去应力退火,例如地,退火的工艺条件可以是:保温温度300摄氏度,保温时间3小时。 1. jig position sensor and stress relief annealing of straight tube bending process, which uses a tube bending apparatus, the tube bending apparatus includes a left frame (13) and the pushing mechanism (10), push pressing means (10) in the left frame (13) to the right, the left frame (13) fixedly connected to the right rear of the dovetail guide (15), the dovetail guide (15) extends horizontally in the lateral direction, the dovetail left rail (15) and the left frame (13) fixedly connected to the rear of the dovetail guide (15) and the right end of the pressing mechanism (10) in the dovetail groove slidably connected, the left frame (13) It is provided with a through hole for the tube through the front; the dovetail guide (15) on the left between the frame (13) and the pushing mechanism (10) is slidably disposed in order from left to right with three Hydraulic bending means (9); the left front portion of the pressing mechanism (10) is provided with a first fixing jig (I), the left frame (13) fixed to the right side of the front portion is provided with a second clamp (4), in Set between the left frame (13) and the pushing mechanism (10) has a front rail, the front rail extending straight between the second clamp (4) and the first fixture (I), and when the pressing mechanism (10) slides along the dovetail guide (15), the first clamp (I) can be along the front rail toward the second clamp (4) to slide; on the rail in front of the second clamp (4) and a first between the fixture (I) is also provided with a third sliding clamp (3) and a fourth clamp (2), four of said clamp (3, 4) comprises a substrate clamp after clamp blocks (41) and former clamp blocks (42), clamp blocks (41) and the front clamp blocks (42) all along the front and rear direction of the furnace tube bending plane bending occurs in the plane and with respect to the rear of each of the clamp set, and in the fixture base enables the contact and separation loosen the clamping action; wherein the rear clamp (41) are located behind the front rail, and a rectangular shape, the clamp blocks (82 of the former , 42) are located in front of the front rail, and a cylindrical shape; the shape of a rectangular parallelepiped shape and a longitudinal axis of the cylinder are perpendicular to the plane of the bending plane bending furnace pipe occurs; wherein said second clamp the right side surface of the clamp block (4) is provided to the right rear and right extension extending stopper (43), left after the first clamp surface (I) of the clamp blocks are provided with a left After the left side stopper extending extension (14), a third clamp (3) and a fourth clamp (2) the left clamping block, the right side surface are respectively provided with left extension extending to the left limit and the right block extending stopper extending to the right; the three hydraulic bending means (9) each comprises a hydraulic drive cylinder, the drive cylinder relative to the dovetail guide (15) disposed perpendicular to the longitudinal axis and is able to slide in the dovetail guide (15); said drive rod end of the hydraulic cylinder is hinged bending roller (91), and the driving hydraulic cylinder capable of driving in a direction perpendicular to the dovetail guide (15) of the bending roller ( 91) bends forward thrust is applied; the three hydraulic bending means (9) in each of which further comprises a travel drive means for respectively driving the corresponding hydraulic bending means (9) along the dovetail guides (15 ) slide to a different position; the pressing mechanism (10) is provided with a right telescopic strut means (12), the telescopic support bar means (12) disposed in front of the dovetail guide (15), the telescopic support bar means (12) having a stretchable support bars (120), the stretchable support bars (120) from the right side of the pressing mechanism (10) passes through the left side of the left pressing mechanism (10) and can be used for extending into the inner tube, which play a supporting tube to prevent undesirable effects tube bending occurs, and be able to strut telescopic mechanism (12) is driven to reciprocate in the horizontal direction; the tube bending process comprises the steps of: A Providing straight tube (19); B. the straight tube penetrates the left frame (13) with a through hole and advance to the right, until the straight tube to be bent The length extending in the left portion of the frame (13); C. said second clamp (4) to the left end of the straight tube clamping; D. pressing mechanism (10) movement, so that the first a clamp (I) tube clamp straight right end; E. Third clamp (3) and a fourth clamp (2) between the second clamp (4) and the first fixture (I) of the straight tube clamping, and such that the second clamp (4), third clamp (3), fourth clamp (2) and the first fixture (I) the straight tube forearm three separate growing segment of equal length ; on the front rail is fixed is provided with a left and a right jig fixture location-aware sensor location-aware sensor, which left the front rail of the clamp position sensing sensor when the third clamp (3) corresponding to the position of being triggered thereby signaling the right of the front rail of the clamp position sensing sensor when the fourth clamp (2) corresponding to the position of being triggered thereby sending a signal; the clip on the front rail position sensing sensor is positioned in the front rail to help achieve the corresponding processing segment furnace tube into the three lengths of equal length (the position sensing sensor may be a Hall effect sensor, and a magnetic effect sensors, or can one be a Hall effect sensor, and the other is a magnetic effect sensor the midpoint of the length of the three segments of the length of each segment corresponding to said three curved F. hydraulic device (9) to bend roll (91), respectively, each of said contacting;;) G. pressing mechanism ( 10) of the telescopic support bar means (12) to the stretchable support bars (120) extends into the straight tube an inner tube, and leaving the three lengths in the length of the first segment from the left unsupported, left length from the second and third segments are supported; bending bending hydraulic device (9) on the left side of the roll outwards H. pressed against the length of the first segment, so that it happened straight bending, pressing mechanism (10) As will be bent to follow synchronously pressed, while the third clamp (3), a fourth clamp (2) also follow synchronous motion; top pressure in the process, the hydraulic unit on the left side of the bend ( 9) driven by the left movement in its travel drive mechanism, thereby bending the roll holding position corresponding to the length of the first segment midpoint; the first jig (4) the right to extend stopper (43) and third fixtures (3) extend the left stopper contact, bend the left side of the hydraulic device (9) is stopped bending roller top pressure, and the pressing mechanism (10) stops continue pushing forward; i. pressing mechanism (10) of the telescopic support bar means (12) to the stretchable support bars (120) is retracted, thereby leaving the three lengths such that the length of the first segment from the left and the second from the left No lengths are supported, third from left length segments are supported; J. middle bend hydraulic device (9) starting from the left top pressure of the second longitudinal section until the third clamp (3) of right extension stopper and a fourth clamp (2) extending left stopper contacts; K. pressing mechanism (10) such that said support bar (120) is fully retracted, so that the length of the three segments were not supported; L Bending to the right of the hydraulic device (9) Start pressing the top third from left lengths until the fourth clamp (2) to extend stopper right contact with the first clamp (1) to extend stopper left ; M. loosen each clamp, complete removal of bending furnace tube; N. finished the bending furnace tube into the heat treatment furnace for stress relief stress relief annealing, such as process conditions, the annealing can be : holding temperature of 300 degrees Celsius, the holding time of 3 hours.
Description  translated from Chinese

一种直线型加热炉炉管的弯曲工艺 Bending process for linear heating furnace tube

[0001] [0001]

技术领域 Technical Field

[0002] 本申请涉及加热炉炉管的制作,具体为一种直线型的加热炉炉管弯曲工艺。 [0002] The present application relates to the production of heating furnace tubes, in particular to a linear heating furnace tube bending process.

[0003]背景技术 [0003] BACKGROUND

[0004] 加热炉在工业中有着广泛的应用,例如钢坯加热、工件热处理等。 [0004] The furnace has been widely used in industry, such as slab heating, the workpiece heat treatment. 为了增加加热炉的加热均匀性,加热炉炉管往往采用弯曲的形式。 In order to increase the uniformity of the heating furnace, heating furnace tube is often used in the form of bending.

[0005] 在现有技术中,为了保证对具体加热炉形状的要求以及满足对具体加热热量分别的要求,通常需要对炉管的形状进行具体形状的弯曲。 [0005] In the prior art, in order to ensure the specific shape of the furnace as well as to meet the requirements of the specific heat of the heating requirements are usually required to be a curved shape of a specific tube shape. 对于加热炉炉管的弯曲,在现有技术中往往采用冲压成型的方式。 For the heating furnace tube bending, often used in the prior art metal forming ways. 这种成型方式可以高效快速地实现弯曲加工,并且加工精度高,成本较低,在现有技术中具有广泛应用。 This way you can quickly and efficiently forming the bending process, and high precision, low cost, widely used in the prior art. 但是,这种加热方式容易在加热炉炉管的纵向方向上产生显著大量的不均匀变形,导致加热炉炉管的横截面面积在炉管的纵向方向上具有较大变动,这使得在加热过程中加热均匀性难以控制,而且,容易在使用的过程中产生不均匀的应力集中,从而导致加热炉的使用稳定性、安全性大大降低,而且缩短了加热炉的使用寿命。 However, this heating method is easy to produce a large number of significant non-uniform deformation, resulting in cross-sectional area of the heating furnace tube has a large variation in the longitudinal direction of the tube in the longitudinal direction of the furnace tubes, which makes the heating process heating uniformity is difficult to control, and prone to uneven stress concentration in the use of the process, resulting in the use of the stability of the furnace, security is greatly reduced, but also shortens the life of the furnace.

[0006] 在现有技术中也具有使用弯折滚对工件进行弯折的方案。 [0006] In the prior art, also with the use of roll bending bent workpiece program. 但是,这种方案往往对工件采用逐个弯的弯曲,由于工件的纵向尺寸较大,在工件的完整转动过程中,这种加工往往需要较大的加工空间,而且,由于加工过程为采用逐个弯的方式,加工过程较长,加工效率较低,由此导致加工成本上升,而且难以保证加工的形状精度。 However, such programs often employ individually bent workpiece is bent, since the large longitudinal dimension of the workpiece, in the course of a complete rotation of the workpiece, this process often requires a large work area, and, since the process of using the by-bend The way, the process is longer, lower processing efficiency, thereby resulting in increased processing costs, and it is difficult to ensure the shape accuracy of processing.

发明内容 DISCLOSURE

[0007] 本发明一种加热炉炉管弯曲工艺,其旨在解决现有技术中加工变形不均匀和加工过程长、形状精度低等缺陷,并提供一种具有具体形状的加热炉炉管的弯曲工艺。 [0007] The present invention is a heating furnace tube bending process, it is intended to solve uneven deformation in the prior art process and the process long, low shape accuracy defects, and provide heating furnace having a specific shape of a tube bending process.

[0008] 本发明采用的技术方案如下: [0008] The technical solution of the present invention is used as follows:

用夹具位置传感器并进行去应力退火的直线型炉管弯曲工艺,其使用一种炉管弯曲设备,所述炉管弯曲设备包括左机架和推压机构,推压机构在左机架右方,所述左机架的右侧后部固定连接有燕尾导轨,燕尾导轨在左右方向上水平延伸,燕尾导轨的左端与所述左机架固定连接,燕尾导轨的右端与推压机构的后部中的燕尾槽滑动连接,所述左机架的前部设置有供炉管穿过的一个通孔;所述燕尾导轨上在所述左机架和推压机构之间从左至右依次滑动设置有三个弯曲液压装置;推压机构的左侧前部固定设置有第一夹具,左机架的右侧前部固定设置有第二夹具,在所述左机架和推压机构之间设置有前导轨,所述前导轨在第二夹具和第一夹具之间直线延伸,并且当推压机构沿着所述燕尾导轨滑动时,第一夹具能够沿着前导轨朝向第二夹具滑动;所述前导轨上在第二夹具和第一夹具之间还滑动地设置有第三夹具和第四夹具,四个所述夹具均包括夹具基体、后夹块和前夹块,每个所述夹具的所述后夹块和前夹块均沿着在所述炉管发生平面弯曲时的弯曲平面中的前后方向而相对地设置,并在夹具基体上能够实现接触夹紧和分离松开的动作;其中,所述后夹块均位于所述前导轨后方,并且为长方体形状,所述前夹块、均位于所述前导轨前方,且为圆柱体形状;所述长方体形状和圆柱体形状的纵向轴线均垂直于所述炉管发生平面弯曲时的弯曲平面。 Jig position sensor and stress relief annealing of straight tube bending process, which uses a tube bending apparatus, the tube bending apparatus includes a left frame and a pressing mechanism, the pressing mechanism in the left frame to the right , the left and right of the rear frame fixedly connected horizontally extending dovetail guides, dovetail guides in the lateral direction, the left end of the dovetail guide is fixedly connected with the frame left, right and rear dovetail guide pressing mechanism The dovetail sliding connection, the front part of the left frame has a through hole for the tube to pass through; turn on the sliding dovetail rail between the left frame and the pressing mechanism from left to right hydraulic means provided with three curved; fixedly provided on the left front portion of the pressing mechanism has a first jig, the front right side of the left frame portion is provided with a second fixing jig, between the left frame and the pressing mechanism is provided There are front rail, the front rail extending straight between the second fixture and the first fixture, and when the pressing mechanism slides along the dovetail guide, the first clamp toward the second clamp can slide along the front rail; the said front rail between the second fixture and the first clamp further slidably disposed a third and a fourth jig fixture, the fixture includes four jig base, front clip after clip block and block, each of said clamps the front clip after clip block and block all along the curved plane in the tube bending occurs in the plane of the front and rear direction and disposed opposite and in the fixture base enables the contact and separation of release of the clamping action ; wherein said rear clamping block are located behind the front rail, and a rectangular parallelepiped shape, said front clamping block are located in front of the front rail, and a cylindrical shape; said cylindrical shape and a rectangular parallelepiped shape It is perpendicular to the longitudinal axis of the tube bending plane plane bending occurs.

[0009] 其中,所述第二夹具的后夹块的右侧面上设置有向右侧延伸的右延伸限位块,所述第一夹具的后夹块的左侧面上均设置有向左侧延伸的左延伸限位块,第三夹具和第四夹具的后夹块的左、右侧面上均分别地设置有向左侧延伸的左延伸限位块和向右侧延伸的右延伸限位块。 [0009] wherein, after the right side surface of the second clamp block clamp is provided extending to the right of the right to extend stopper, after the left side of the first clamp is provided with a clamp to block After the left the left side of the stopper extension extending third and fourth jig jig clamping block left and right side surfaces were each provided with a left to extend stopper extending and extending to the left to the right side of the right extending stopper.

[0010] 所述三个弯曲液压装置中的每个均包括驱动液压缸,所述驱动液压缸相对于燕尾导轨的纵向轴线垂直设置,并且能够在燕尾导轨上滑动;所述驱动液压缸的液压杆末端铰接有弯曲滚,并且驱动液压缸能够沿着与燕尾导轨垂直的方向驱动对弯曲滚施加向前的弯管推力;所述三个弯曲液压装置中的每个均还包括行走驱动机构,用以分别地驱动相应的弯曲液压装置沿着燕尾导轨滑动到不同位置。 [0010] The three hydraulic bending means each comprise a drive cylinder, the drive cylinder relative to the longitudinal axis of the dovetail rails vertically and can slide on the dovetail guide; the hydraulic drive cylinder hinged lever tip curved roller, and the drive along with the hydraulic cylinder can be driven in the direction perpendicular to the dovetail guide roller for applying a forward bend elbow thrust; the three curved hydraulic devices each of which also includes a travel drive mechanism, for respectively driving the corresponding hydraulic bending means to slide along the dovetail guide to a different location.

[0011] 所述推压机构的右侧设置有支撑杆伸缩机构,支撑杆伸缩机构设置在所述燕尾导轨的前方,支撑杆伸缩机构具有伸缩性支撑杆,伸缩性支撑杆从推压机构的右侧穿过离开推压机构的左侧并能够用于伸入到所述炉管内,从而起到支撑炉管防止炉管发生不期望弯曲的作用,并能够在支撑杆伸缩机构的驱动下在左右方向上往复移动。 [0011] The pressing mechanism pushes the right side of the telescopic mechanism is provided with a support rod, the support bar having a stretchable support bars telescoping mechanism is provided in front of the dovetail guide, support rods extending and retracting mechanism, the stretchable support rod from the pressing mechanism leave through the right side and the left side of the pressing mechanism can be used to extend into the interior of the tube, and thus play a supporting tube to prevent undesirable effects tube bending occurs, and the ability of the drive mechanism of the telescopic strut down reciprocating the lateral direction.

[0012] 所述炉管弯曲工艺包括如下步骤: [0012] The tube bending process comprises the following steps:

A.提供直线型炉管; A. Providing straight tube;

B.将所述直线型炉管穿入所述左机架上的一个通孔并向右推进,直至所述直线型炉管要进行弯曲加工的长度部分伸出于所述左机架; B. the straight tube penetrating said left a through hole on the rack and advance to the right, until the straight tube length of the portion to be bent extending to the left frame;

C.所述第二夹具将所述直线型炉管的左端夹紧; C. The second clamp the straight tube clamping of the left;

D.推压机构运动,以使得第一夹具夹紧直线型炉管的右端; D. pressing mechanism movement, so that the first straight tube clamping jig right end;

E.第三夹具和第四夹具在第二夹具和第一夹具之间对直线型炉管夹紧,并使得第二夹具、第三夹具、第四夹具和第一夹具将直线型炉管的所述前臂分隔成长度相等的三个长度段;所述前导轨上固定设置有左夹具位置感知传感器和右夹具位置感知传感器,其中,所述前导轨的左夹具位置感知传感器当第三夹具的位置与其对应时被触发从而发出信号,所述前导轨的右夹具位置感知传感器当第四夹具的位置与其对应时被触发从而发出信号;前导轨上的所述夹具位置感知传感器在前导轨上定位成有助于实现将炉管的相应加工段分成所述长度相等的三个长度段所述位置感知传感器可以是霍尔效应传感器、以及磁效应传感器等,或者可以一个是霍尔效应传感器,另一个是磁效应传感器; E. Third and fourth jig jig jig between the second and the first fixture on the straight tube clamping, and so that the second fixture, jig third, the fourth and the first jig jig straight tube furnace The forearm three separate growing segment of equal length; on the front rail is fixed is provided with a left and a right clamp position sensing sensor jig location-aware sensor, which left the front rail of the clamp position sensing sensor when the third fixture the position corresponding to the trigger in order to send a signal when it is the right of the front rail of the clamp position sensor sensing the position of the fourth when the corresponding fixture in order to send a signal to be triggered; the clip on the front rail position sensing sensor is positioned in the front rail to help achieve the appropriate processing section furnace tube into the equivalent length of the positions of the three lengths sensing sensor may be a Hall effect sensor, and a magnetic effect sensors, or may be a Hall effect sensor, and the other a magnetic effect sensor;

F.所述三个弯曲液压装置中的每个使其弯曲滚分别接触所述三个长度段中相应的每个长度段的中点; F. The three hydraulic bending means to bend each of said three rollers respectively contact the midpoint of the length of the segments corresponding to the length of each segment;

G.推压机构的支撑杆伸缩机构将伸缩性支撑杆伸入直线型炉管的管内,并留下所述三个长度段中的左起第一个长度段未被支撑,左起第二和第三个长度段被支撑; G. pressing mechanism will stretch strut strut telescopic mechanism extends into the straight tube of the inner tube, and left the three lengths in a longitudinal section from the left unsupported, second from left and third the length of the segment to be supported;

H.左侧的弯曲液压装置的弯曲滚开始向外顶压所述第一个长度段,从而使其发生直线形弯曲,推压机构随着弯曲的进行而同步地跟随推压,同时,第三夹具、第四夹具也同步地跟随运动;在顶压的过程中,左侧的弯曲液压装置在其行走驱动机构的驱动下向左运动,从而使其弯曲滚保持对应于所述第一个长度段中点的位置;到第一夹具的右延伸限位块和第三夹具的左延伸限位块接触时,所述左侧的弯曲液压装置的弯曲滚停止顶压,并且推压机构停止继续向前推压; H. bending bending hydraulic unit left side roll outwards pressed against the first longitudinal section making it happen straight bending, pressing mechanism be synchronized with the bending follow pressed at the same time, the first three fixtures, the fourth fixture also simultaneously follow the movement; the top pressure in the process of bending the left driven hydraulic unit moves to the left in its travel drive mechanism, so that it corresponds to the bending roller holding a first lengths midpoint position; when to extend stopper left and right first jig jig extending stopper and third contact, bending hydraulic unit on the left side of the curved top pressure rollers stop, and stop pressing mechanism Continue pushing forward;

1.推压机构的支撑杆伸缩机构将伸缩性支撑杆回缩,从而使得留下所述三个长度段中的左起第一个长度段和左起第二个长度段均未被支撑,左起第三个长度段被支撑; 1. The pressing mechanism strut telescoping support rod retraction mechanism stretchable, so that left the three lengths in a longitudinal section from the left and second from left lengths were not supported, third from left length segments are supported;

J.中间的弯曲液压装置开始顶压所述左起第二个长度段,直至第三夹具的右延伸限位块与第四夹具的左延伸限位块接触; J. middle bend hydraulic device starts pressed against the second from the left lengths, until the right to extend stopper third and fourth jig fixture left to extend stopper contacts;

K.推压机构使得所述支撑杆完全回缩,以使三个长度段均未被支撑; K. pressing mechanism so that the support rod fully retracted so that the three lengths were not supported;

L.右侧的弯曲液压装置开始顶压所述左起第三个长度段,直至第四夹具的右延伸限位块与第一夹具的左延伸限位块接触; L. bending to the right of the hydraulic system began to press the top third from left lengths, until the right to extend stopper fourth fixture of the first to extend stopper clamp left in contact;

M.各个夹具松开,取走弯曲加工完毕的加热炉炉管。 M. loosen each clamp, complete removal of bending furnace tubes.

[0013] N.将弯曲加工完毕的加热炉炉管放入去应力热处理炉进行去应力退火,例如地,退火的工艺条件可以是:保温温度摄氏度,保温时间小时。 [0013] N. finished the bending furnace tube into the heat treatment furnace for stress relief stress relief annealing, for example, the annealing process conditions can be: holding temperature C, holding time hours.

[0014] 由于本发明中,在每个夹具上采用了延伸限位块,从而使得限位块接触后,能够对成型后的炉管进行一个锁定,在后续的加工作用力的作用下,不会对精确成型后的弯曲形状造成影响;而采用了一边为长方体形、一边为圆柱形的夹具,使得保证了足够的夹紧力的同时,又能够对成形的炉管形成平滑的弯曲变形;整个过程,一边在纵向方向送料,一边利用弯折滚动作进行折弯,因此,其避免了现有技术中在炉管的纵向方向上在所加工弯曲的部位产生较大纵向变形的问题,而且,在加工过程中,其采用独特的加工形式,一边送料,弯曲滚在垂直纵向方向中进行动作并且在平行纵向方向上进行移动,从而保持弯曲滚与所弯曲部位的相对位置关系,而炉管在其他夹紧装置的整体移动下被纵向送入,因此,保证了炉管整体保持纵向方向而被逐个弯进行弯折,整个弯曲过程连续,无需重复对炉管进行装夹和拆卸,使得整个加工过程加工空间小,加工过程短而且保证了加工的形状精度。 [0014] Since the present invention, in the extension of each fixture with a stopper, so that after contact with the stopper, capable of forming a tube furnace after the locking, the role of subsequent processing forces, not have a curved shape after forming precise impact; and the use of the side of a rectangular shape, while the cylindrical jig so ensure sufficient clamping force, they also can be formed on the furnace tube to form a smooth bending deformation; The whole process, while feeding in the longitudinal direction, while the use of folding roll for folding, therefore, which avoids the problems of the prior art in the longitudinal direction of the tube in the bending processed portions have a greater vertical deformation, and , in the process, which uses unique processing form, while feeding, bending roller in a vertical longitudinal direction is operated and moved in parallel to the longitudinal direction, thereby maintaining the bending roller relative positional relationship between the bent portion, and tube longitudinally moving into a whole other clamping devices under, so to ensure that the overall holding the longitudinal direction of the furnace tube is bent by bending one by one, throughout the bending process is continuous, without repeating the furnace tube clamping and removal, making the entire small working space during processing, the process is short and to ensure the shape accuracy of processing. 而且,多个夹具能够在加工过程中滑动,保证了在加工过程中始终对炉管具有夹持定位的锁定。 Further, a plurality of fixtures can be slid in the process, to ensure that the lock is always in the process of having the holding tube positioned.

附图说明 Brief Description

[0015] 图1是本发明的弯曲装置的俯视示意图。 [0015] FIG. 1 is a schematic plan view of the bending device of the present invention.

[0016] 图2是本发明的图1中弯曲装置在对炉管弯曲完成后的俯视示意图。 [0016] FIG. 2 is a schematic plan view of the bending device of FIG. 1 of the invention, after completion of the furnace tube bending.

[0017] 图3是弯曲完成后的炉管形状的俯视示意图。 [0017] FIG. 3 is a top schematic view of the tube after completion of the curved shape.

具体实施方式 DETAILED DESCRIPTION

[0018] 下面结合附图1-3对本发明进行详细说明。 [0018] The following 1-3 with reference to the present invention will be described in detail.

[0019] 用夹具位置传感器并进行去应力退火的直线型炉管弯曲工艺,其使用一种炉管弯曲设备,所述炉管弯曲设备包括左机架13和推压机构10,推压机构10在左机架13右方,所述左机架13的右侧后部固定连接有燕尾导轨15,燕尾导轨15在左右方向上水平延伸,燕尾导轨15的左端与所述左机架13固定连接,燕尾导轨15的右端与推压机构10的后部中的燕尾槽滑动连接,所述左机架13的前部设置有供炉管穿过的一个通孔;所述燕尾导轨15上在所述左机架13和推压机构10之间从左至右依次滑动设置有三个弯曲液压装置9 ;推压机构10的左侧前部固定设置有第一夹具1,左机架13的右侧前部固定设置有第二夹具4,在所述左机架13和推压机构10之间设置有前导轨,所述前导轨在第二夹具4和第一夹具I之间直线延伸,并且当推压机构10沿着所述燕尾导轨15滑动时,第一夹具I能够沿着前导轨朝向第二夹具4滑动;所述前导轨上在第二夹具4和第一夹具I之间还滑动地设置有第三夹具3和第四夹具2,四个所述夹具1、2、3、4均包括夹具基体、后夹块41和前夹块42,每个所述夹具的所述后夹块41和前夹块42均沿着在所述炉管发生平面弯曲时的弯曲平面中的前后方向而相对地设置,并在夹具基体上能够实现接触夹紧和分离松开的动作;其中,所述后夹块41均位于所述前导轨后方,并且为长方体形状,所述前夹块82、42均位于所述前导轨前方,且为圆柱体形状;所述长方体形状和圆柱体形状的纵向轴线均垂直于所述炉管发生平面弯曲时的弯曲平面。 [0019] The clamp position sensor and stress relief annealing of straight tube bending process, which uses a tube bending apparatus, the tube bending apparatus includes a left frame 13 and the pushing mechanism 10, the pressing mechanism 10 left and right in the frame 13, the left and right side rear portion of the frame 13 has a dovetail guide rail 15 is fixedly connected, dovetail rail 15 extends horizontally in the lateral direction, the left end of the dovetail guide 15 and the left frame 13 is fixedly connected , connected to the rear dovetail dovetail slide rails and push the right end 15 of the 10 institutions in the front part of the left frame 13 is provided with a through hole for the tube to pass through; on the dovetail guide 15 in the said left frame 13 and the pushing mechanism 10 from left to right between the slide is provided with three curved hydraulic device 9; front left side pressing mechanism 10 is provided with the right of first fixing jig 1, the left rack 13 fixed to the front portion 4 is provided with a second clamp, disposed at the left front rail between the rack 10 and the pressing mechanism 13, extending straight in the front rail 4 and the second clamp between the first clamp I, and when 15 When the pressing mechanism 10 slide along the dovetail guide, the first jig I can slide toward the second holder 4 along the front rail; on the front rail further slide in the second holder 4 and the first fixture between the I ground 3 is provided with a third and a fourth jig jig 2, 3, 4 each comprise four of said jig jig base, after the clamp block 41 and block 42 before the clip, said each of the clamp after clamp block 41 and 42 are front clamp blocks occur along a curved plane curved in the plane when the tube back and forth in the direction opposite to the set, and in the fixture base enables the contact and separation of release of the clamping action; wherein the clamp blocks 41 to be described later are located behind the front rail, and a rectangular parallelepiped shape, said front clamping block 82,42 are located in front of the front rail, and a cylindrical shape; rectangular parallelepiped shape and the cylindrical shape of the longitudinal axis are perpendicular to the tube bending plane plane bending occurs.

[0020] 其中,所述第二夹具4的后夹块的右侧面上设置有向右侧延伸的右延伸限位块43,所述第一夹具I的后夹块的左侧面上均设置有向左侧延伸的左延伸限位块14,第三夹具3和第四夹具2的后夹块的左、右侧面上均分别地设置有向左侧延伸的左延伸限位块和向右侧延伸的右延伸限位块。 [0020] wherein, the right side surface of the second clamp block after the clamp 4 is provided extending to the right side of the right stopper 43 extends, the first surface of the jig I rear left clamping block are Left to extend stopper provided 14 extending to the left, and the third and fourth jig jig 3 folder left after 2 blocks, right side surface are respectively provided extending to the left of the left extension stopper and right-one extending to the right stopper.

[0021] 所述三个弯曲液压装置9中的每个均包括驱动液压缸,所述驱动液压缸相对于燕尾导轨15的纵向轴线垂直设置,并且能够在燕尾导轨15上滑动;所述驱动液压缸的液压杆末端铰接有弯曲滚91,并且驱动液压缸能够沿着与燕尾导轨15垂直的方向驱动对弯曲滚91施加向前的弯管推力;所述三个弯曲液压装置9中的每个均还包括行走驱动机构,用以分别地驱动相应的弯曲液压装置9沿着燕尾导轨15滑动到不同位置。 [0021] The three curved hydraulic means 9 drives each comprise a hydraulic cylinder, the drive cylinder vertically disposed relative to the longitudinal axis of the dovetail guide 15 and can slide on the dovetail guide 15; the hydraulic drive the rod end of the hydraulic cylinder is articulated bending roller 91, and is capable of driving the hydraulic cylinder along a direction perpendicular to the dovetail guide 15 drives the bending roller 91 bends forward thrust is applied; said three curved hydraulic means 9 each both also includes travel drive means for respectively driving the corresponding hydraulic device 9 along curved dovetail slide rails 15 to a different location.

[0022] 所述推压机构10的右侧设置有支撑杆伸缩机构12,支撑杆伸缩机构12设置在所述燕尾导轨15的前方,支撑杆伸缩机构12具有伸缩性支撑杆120,伸缩性支撑杆120从推压机构10的右侧穿过离开推压机构10的左侧并能够用于伸入到所述炉管内,从而起到支撑炉管防止炉管发生不期望弯曲的作用,并能够在支撑杆伸缩机构12的驱动下在左右方向上往复移动。 [0022] The pressing mechanism 10 are provided on the right support rods telescoping mechanism 12, the telescopic support bar mechanism 12 is disposed in front of the dovetail guide 15, the support rods telescoping mechanism 12 stretchable support bars 120, the stretchable support From the right side of the lever 120 passes through the pressing mechanism 10 away from the left side and the pressing mechanism 10 can be used for extending into said inner tube, and thus play a supporting tube to prevent undesirable effects tube bending occurs and can In the drive mechanism 12 under the telescopic strut reciprocated in the lateral direction.

[0023] 所述炉管弯曲工艺包括如下步骤: [0023] The tube bending process comprises the following steps:

A.提供直线型炉管19 ; A. Providing straight tube 19;

B.将所述直线型炉管穿入所述左机架13上的一个通孔并向右推进,直至所述直线型炉管要进行弯曲加工的长度部分伸出于所述左机架13 ; B. the straight tube penetrates the left frame on a through-hole 13 and advance to the right, until the straight tube length of the portion to be bent projecting in the left frame 13 ;

C.所述第二夹具4将所述直线型炉管的左端夹紧; C. The second clamp 4 to the left end of the straight tube clamping;

D.推压机构10运动,以使得第一夹具I夹紧直线型炉管的右端; D. pressing mechanism 10 is moved, so that the first clamping jig I right end straight tube;

E.第三夹具3和第四夹具2在第二夹具4和第一夹具I之间对直线型炉管夹紧,并使得第二夹具4、第三夹具3、第四夹具2和第一夹具I将直线型炉管的所述前臂分隔成长度相等的三个长度段;所述前导轨上固定设置有左夹具位置感知传感器和右夹具位置感知传感器,其中,所述前导轨的左夹具位置感知传感器当第三夹具3的位置与其对应时被触发从而发出信号,所述前导轨的右夹具位置感知传感器当第四夹具2的位置与其对应时被触发从而发出信号;前导轨上的所述夹具位置感知传感器在前导轨上定位成有助于实现将炉管的相应加工段分成所述长度相等的三个长度段所述位置感知传感器可以是霍尔效应传感器、以及磁效应传感器等,或者可以一个是霍尔效应传感器,另一个是磁效应传感器; E. Third and fourth jig jig 3 2 4 between the second and first jig jig I on the straight tube clamping, and so that the second holder 4, third jig 3, fourth jig 2 and the first I clamp the straight tube forearm three separate growing segment of equal length; on the front rail is fixed is provided with a left and a right jig fixture location-aware sensor location-aware sensor, wherein the front rail of the left gripper Location-aware sensor when the third holders of the corresponding position 3 in order to send a signal to be triggered when the right position of the front clamp rail position sensing sensor when the fourth jig 2 corresponding to signal when triggered thereby; on the front rail said fixture location-aware sensor is positioned in the front rail to help achieve the appropriate processing section furnace tube into equal the length of the positions of the three lengths sensing sensor may be a Hall effect sensor, and a magnetic effect sensors, or it may be a Hall effect sensor, and the other is a magnetic effect sensor;

F.所述三个弯曲液压装置9中的每个使其弯曲滚91分别接触所述三个长度段中相应的每个长度段的中点; G.推压机构10的支撑杆伸缩机构12将伸缩性支撑杆120伸入直线型炉管的管内,并留下所述三个长度段中的左起第一个长度段未被支撑,左起第二和第三个长度段被支撑; F. The three curved hydraulic means 9 to bend each roller 91 respectively contact the midpoint of the length of the three segments corresponding to the length of each segment; G. pressing mechanism support bar 10 of the telescopic mechanism 12 Scalability within the strut tube 120 extends into the straight tube, and leaving the three lengths from the left, the first unsupported lengths, left the second and third segment lengths are supported;

H.左侧的弯曲液压装置9的弯曲滚开始向外顶压所述第一个长度段,从而使其发生直线形弯曲,推压机构10随着弯曲的进行而同步地跟随推压,同时,第三夹具3、第四夹具2也同步地跟随运动;在顶压的过程中,左侧的弯曲液压装置9在其行走驱动机构的驱动下向左运动,从而使其弯曲滚保持对应于所述第一个长度段中点的位置;到第一夹具4的右延伸限位块43和第三夹具3的左延伸限位块接触时,所述左侧的弯曲液压装置9的弯曲滚停止顶压,并且推压机构10停止继续向前推压; H. hydraulic unit left side bending bending roller 9 outwards pressed against the first longitudinal section making it happen straight bending, pressing mechanism 10 will be synchronized with the bending follow pressed at the same time Third jig 3, fourth jig 2 also follows the motion synchronized; top pressure in the process, the 9 driven by the leftward movement of the left side of the bending hydraulic device in its travel drive mechanism, so that it corresponds to the bending roller holding the right time to extend stopper first clamp 43 and the third jig 4 to extend stopper 3 left a contact, bending hydraulic unit of the left bending roller 9; and the length of the first segment midpoint position stop top pressure, and the pressing mechanism 10 stops continue pushing forward;

1.推压机构10的支撑杆伸缩机构12将伸缩性支撑杆120回缩,从而使得留下所述三个长度段中的左起第一个长度段和左起第二个长度段均未被支撑,左起第三个长度段被支撑; 1. The pressing mechanism support bar 12 of the telescopic mechanism 10 stretchable support bar 120 is retracted so that the three lengths from leaving the left in the first section and the length of the second length segment were left is supported, third from left length segments are supported;

J.中间的弯曲液压装置9开始顶压所述左起第二个长度段,直至第三夹具3的右延伸限位块与第四夹具2的左延伸限位块接触; J. middle bend hydraulic device 9 starts pressed against the second from the left lengths until the third holders the right to extend stopper 3 and the fourth jig left 2 extends the contact stopper;

K.推压机构10使得所述支撑杆120完全回缩,以使三个长度段均未被支撑; K. pressing mechanism 10 so that the support bar 120 is fully retracted to allow three lengths were not supported;

L.右侧的弯曲液压装置9开始顶压所述左起第三个长度段,直至第四夹具2的右延伸限位块与第一夹具I的左延伸限位块接触; L. bending hydraulic device 9 starts pressed against the right side of the longitudinal section third from left, until the right to extend stopper fourth jig 2 and the first jig I left to extend stopper contacts;

M.各个夹具松开,取走弯曲加工完毕的加热炉炉管; M. loosen each clamp, complete removal of bending furnace tube;

N.将弯曲加工完毕的加热炉炉管放入去应力热处理炉进行去应力退火,例如地,退火的工艺条件可以是:保温温度300摄氏度,保温时间3小时。 N. finished the bending furnace tube into the heat treatment furnace to stress de-stress annealing, for example, the annealing process conditions can be: holding temperature of 300 degrees Celsius, the holding time of 3 hours.

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Classifications
International ClassificationB21D11/07
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