CN206883087U - Workpiece welding positioner, workpiece weld clamp device and its hold-down mechanism - Google Patents

Workpiece welding positioner, workpiece weld clamp device and its hold-down mechanism Download PDF

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Publication number
CN206883087U
CN206883087U CN201720563802.2U CN201720563802U CN206883087U CN 206883087 U CN206883087 U CN 206883087U CN 201720563802 U CN201720563802 U CN 201720563802U CN 206883087 U CN206883087 U CN 206883087U
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China
Prior art keywords
lever
take
workpiece
connecting rod
pressure arm
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CN201720563802.2U
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Chinese (zh)
Inventor
马振强
崔少辉
杜宇龙
谢群鹏
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Yutong Bus Co Ltd
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Zhengzhou Yutong Bus Co Ltd
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Abstract

The utility model provides a kind of workpiece welding positioner, workpiece weld clamp device and its hold-down mechanism, workpiece welding hold-down mechanism includes matrix and the driving cylinder being arranged side by side and the pressure arm for workpiece pressing, one end of pressure arm is articulated with matrix, connected between the take-off lever of driving cylinder and the center section of pressure arm by connecting rod, the both ends of connecting rod are hinged with the take-off lever and pressure arm respectively, and the guiding movement on the stretching direction of take-off lever coordinates with matrix with one end that take-off lever is hinged in the connecting rod.Automatic-clamping section bar has been implemented in combination with by driving cylinder, connecting rod, pressure arm and workpiece support block, it can be pressurizeed simultaneously by the driving cylinder to multiple clamping devices during actual use, compared with being clamped section bar by hand clamp in the prior art, clamping efficiency is improved, while alleviates labor intensity.

Description

Workpiece welding positioner, workpiece weld clamp device and its hold-down mechanism
Technical field
It the utility model is related to a kind of workpiece welding positioner, workpiece weld clamp device and its hold-down mechanism.
Background technology
At present, Bus Frame is generally welded using section bar group, and clamping mode uses active grab, and welding manner is carbon dioxide Problems be present in protection weldering, welding manner of the prior art:It is as shown in Figures 1 to 4 the bone of four kinds of different cross section shapes First section bar 1 of frame section, respectively square section, the second section bar 2 and the in irregular shape 3rd of rectangular cross-sectional The section bar 4 of section bar 3 and the 4th, the species of framework section bar is more, it is necessary to make difference design according to the section bar of differential profiles cross-sectional shape, Need to design a set of clamping device for each framework section bar, the clamping device species of design is more.Bone in the prior art Frame section quantity is more, and traditional hand clamp, which is opened and compressed, is required for operating personnel to carry out manual opening and clamping, behaviour Make cumbersome, the requirement of productive temp can not be met, clamping efficiency is low, and operator's labor intensity is big.Simultaneously framework section bar layout compared with Intensive, the arrangement space that clamping device is left at scene for is limited, and clamping device is larger then to influence welding space.In the prior art simultaneously The dynamics clamped by artificial judgment, causes the positioning precision of framework section bar detent mechanism and the uniformity of positioning not to ensure, The requirement of robot welding can not be met.
Utility model content
The purpose of this utility model is to provide a kind of workpiece weld clamp device, to solve in the prior art by manual The problem of clamp is clamped section bar and causes clamping efficiency low;Purpose, which also resides in, to be provided a kind of workpiece welding hold-down mechanism and makes With the workpiece welding positioner of the clamping device.
To achieve the above object, the technical scheme of the utility model workpiece welding hold-down mechanism is:A kind of workpiece welding pressure Tight mechanism, including matrix and the driving cylinder that is arranged side by side and the pressure arm for workpiece pressing, one end of pressure arm are articulated with matrix, Connected between the take-off lever of driving cylinder and the center section of pressure arm by connecting rod, the both ends of connecting rod respectively with the take-off lever and pressure Arm is hinged, and the guiding movement on the stretching direction of take-off lever coordinates with matrix with one end that take-off lever is hinged in the connecting rod.
Hold-down mechanism also includes being used for the position limiting structure for limiting one end limit of sports record being hinged with take-off lever in the connecting rod, During in the limit of sports record, the pressure arm is in the position of compressible workpiece.
Offered in described matrix along take-off lever stretch out direction extension guide groove, the hinge of the connecting rod and take-off lever with The guide groove guiding movement coordinates, and one end cell wall of the remote driving cylinder of the guide groove constitutes described position limiting structure.
The connecting rod is provided with operation handle.
The technical scheme of the utility model workpiece weld clamp device is:A kind of workpiece weld clamp device, including workpiece Hold-down mechanism and workpiece support block, Work-sheet pressing mechanism include matrix, and hold-down mechanism also includes driving cylinder and the use being arranged side by side In the pressure arm that workpiece is clamped together with the workpiece support block, one end of pressure arm is articulated with matrix, the take-off lever of driving cylinder with Connected between the center section of pressure arm by connecting rod, the both ends of connecting rod are hinged with the take-off lever and pressure arm respectively, the connecting rod In the one end and the matrix that are hinged with the take-off lever guiding movement on the stretching direction of take-off lever coordinate.
Hold-down mechanism also includes being used for the position limiting structure for limiting one end limit of sports record being hinged with take-off lever in the connecting rod, During in the limit of sports record, the pressure arm is in the position of compressible workpiece.
Offered in described matrix along take-off lever stretch out direction extension guide groove, the hinge of the connecting rod and take-off lever with The guide groove guiding movement coordinates, and one end cell wall of the remote driving cylinder of the guide groove constitutes described position limiting structure.
The connecting rod is provided with operation handle.
The technical scheme of the utility model workpiece welding positioner is:A kind of workpiece welding positioner, including base, the base One or more section bar clamping device for pressing setting position distribution is provided with, section bar clamping device includes Work-sheet pressing mechanism With workpiece support block, Work-sheet pressing mechanism includes matrix, hold-down mechanism also include the driving cylinder being arranged side by side and for it is described Workpiece support block clamps the pressure arm of workpiece together, and one end of pressure arm is articulated with matrix, in the take-off lever and pressure arm of driving cylinder Between connected by connecting rod between part, the both ends of connecting rod are hinged with the take-off lever and pressure arm respectively, in the connecting rod with output The guiding movement on the stretching direction of take-off lever coordinates the be hinged one end of bar with matrix.
Hold-down mechanism also includes the position limiting structure for being used for one end limit of sports record being hinged with take-off lever for limiting the connecting rod, During in the limit of sports record, the pressure arm is in the position of compressible workpiece.
Offered in described matrix along take-off lever stretch out direction extension guide groove, the hinge of the connecting rod and take-off lever with The guide groove guiding movement coordinates, and one end cell wall of the remote driving cylinder of the guide groove constitutes described position limiting structure.
The connecting rod is provided with operation handle.
The beneficial effects of the utility model are:In the utility model, by setting pressure arm and workpiece support block, when in use Section bar can be clamped therebetween, the compression motion of pressure arm is realized by driving cylinder and its take-off lever, the driving of connecting rod , in use, the take-off lever of driving cylinder is stretched out along stretching direction and one end of drivening rod guiding movement on matrix, make connecting rod One end have determine movement locus, during one end guiding movement of connecting rod, drive pressure arm on matrix towards work The direction of part support block is swung, and pressure arm is clamped workpiece together with workpiece support block, and clamping the dynamic cylinder of rear-guard in place can be protected Pressure.After the completion of welding, driving cylinder retraction, one end of drivening rod is mobile to the direction of retraction and makes pressure arm backswing.
In the utility model, Automatic-clamping type has been implemented in combination with by driving cylinder, connecting rod, pressure arm and workpiece support block Material, it can be pressurizeed simultaneously by the driving cylinder to multiple clamping devices during actual use, and in the prior art by manual Clamp is clamped section bar and compared, and improves clamping efficiency, while alleviate labor intensity.
Brief description of the drawings
Fig. 1 is the schematic cross-section of the first section bar in the prior art;
Fig. 2 is the schematic cross-section of the second section bar in the prior art;
Fig. 3 is the schematic cross-section of the 3rd section bar in the prior art;
Fig. 4 is the schematic cross-section of the 4th section bar in the prior art;
Fig. 5 is the use schematic diagram of gripping means grips state in the utility model workpiece welding positioner embodiment;
Fig. 6 is to remove part first under clamping device open mode in the utility model workpiece welding positioner embodiment to install Seat uses schematic diagram;
Pressure arm, connecting rod and cylinder when Fig. 7 is gripping means grips state in the utility model workpiece welding positioner embodiment The cooperation schematic diagram of piston rod;
Fig. 8 uses schematic diagram for the utility model workpiece welding positioner embodiment.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
The specific embodiment of workpiece welding positioner of the present utility model, as shown in Fig. 5 to Fig. 8, workpiece welding positioner includes Base 16 and at least two workpiece weld clamp devices 17 on base 16(Two are shown in figure, in other implementations In example, the quantity of workpiece weld clamp device can be increased according to actual conditions), the design of each workpiece weld clamp device edge Route arranged for interval.
Workpiece weld clamp device 17 includes the first mounting seat 1 and the second mounting seat 2 being arranged on base 16, the first peace The dress mounting seat 2 of seat 1 and second is spaced positioned opposite, opens up jagged in the first mounting seat 1 and forms two and be arranged vertically Horizontal edge and vertical edge, support block 3 is equipped with horizontal edge and vertical edge, between support block 3 and horizontal edge, vertical edge compress have support block pad Piece 4.Support block 3 and the fixed form of support block pad 4 can be:By opening up through hole in support block pad 4, support block 3, Tapped blind hole is opened up on the horizontal edge and vertical edge of the first mounting seat 1, sunk screw sequentially passes through support block, pad and screws in horizontal edge In the tapped blind hole of vertical edge, realize and support block and pad are fixedly mounted on horizontal edge and vertical edge.
It is frame-shaped construction as Fig. 5 to Fig. 7 can be seen that the second mounting seat 2, remote first mounting seat 1 of frame-shaped construction Side is provided with opening, and linkage and cylinder piston rod 12 are provided with frame-shaped construction, wherein, linkage includes connecting rod 8 and pressure Arm 7, wherein, pressure arm 7 is L-shaped structure, and the lower end of pressure arm 7 is articulated with the second mounting seat 2, and one end of connecting rod 8 is articulated with pressure arm 7 L-shaped turning position, the other end of connecting rod 8 is articulated with cylinder piston rod 12 by hinge 13.In the present embodiment, cylinder 11 Using compact thin wall cylinder, and cylinder 11 is located at the underface of the second mounting seat 2, and overall structure is compacter.Such as Fig. 5 institutes Show, operation handle is installed on the centre position of connecting rod 8, in figure, what solid line was shown 9 is under clamped condition for clamping device Operation handle one, 10 operation handles two being under open mode for clamping device that dotted line is shown.Operation handle can be Cylinder 11 is operated manually in the case of disconnecting source of the gas for operating personnel carries out precompressed to section bar 18.Operation handle can prevent Only cause connecting rod pressure arm can not be driven to work positioned at dead-centre position when cylinder drive link acts.
Protective cover 14 is installed in the opening of the second mounting seat 2, offers what is passed through for operation handle in protective cover 14 Allow bit port.Protective cover 14 can prevent that the foreign matter such as welding slag is entered in linkage and cylinder piston rod 12 in welding process. The guide groove 15 that is stretched into for hinge 13 is wherein offered on side in the second mounting seat 2, guide groove 15 can be to hinge 13 Movement along the vertical direction is oriented to.As seen from Figure 5, when section bar 18 is clamped in place, the level of connecting rod 8 is set simultaneously Put, hinge 13 and the cell wall block cooperation in the vertical direction of the upper end of guide groove 15, the cell wall can prevent cylinder 11 or operation When handle promotion hinge continues to move up, the lower section shown in one end towards Fig. 5 being connected with pressure arm 7 of the drivening rod 8 of hinge 13 Swung, and then the pressing for driving hold 7 to be swung to the left and causing hold 7 to release to section bar 18 clamps.
Pressure arm 7 includes pressure arm body, and pressure is respectively arranged with two mutually perpendicular horizontal edges and vertical edge of pressure arm body Block 5, two briquettings 5 are corresponding with the support block 3 in the first mounting seat 1 respectively, compressed between two briquettings 5 and horizontal edge, vertical edge There is briquetting pad 6, the thickness of briquetting pad 6 is adjustable, the fixed form of briquetting pad 6, briquetting 5 and pressure arm body and the first installation Seat 1, support block pad 4 are consistent with the fixed form of support block 3, and its content will not be repeated here.
It is of the present utility model to be using process:The through hole that cylinder passes through can be supplied by being opened up first on base, by the first peace The dress mounting seat 2 of seat 1 and second is fixedly mounted on base 16, cylinder 11 is passed through through hole, cylinder 11 is fixed on the second mounting seat 2 Above or it is fixed in other structures.Section bar 18 is placed in support block 3, manual pull operation handle makes connecting rod to moving up Dynamic, now, cylinder 11 disconnects source of the gas, and operation handle drivening rod moves up, while drives pressure arm 7 in the second mounting seat 2 Upper swing, pressure arm 7 contact precompressed of the section bar completion to section bar.After the completion of precompressed, opening source of the gas makes the cylinder of multiple clamping devices 11 start simultaneously at work, and the drive link 8 of cylinder 11 moves up and makes the other end of connecting rod 8 drive pressure arm 7 to complete to section bar Compress, when hinge 13 is moved upward to the upper cell wall of guide groove, two locating pieces 5 of pressure arm 7 are completed pair together with support block 3 The clamping of section bar, now section bar is by Complete Bind.After the completion of welding, the piston rod counter motion of cylinder, pressure arm is released to section bar Pressing, take out section bar, whole operation process is completed.
Workpiece welding positioner of the present utility model, by the cooperation of cylinder and linkage, realize to section bar it is automatic, Simultaneously clamp on, compared with needing to be clamped with hand vice in the prior art, operating efficiency improves, and labor intensity mitigates.This practicality simultaneously New clamping device uses modularized design, and connected mode and parts use standardized structural, versatile.Simultaneously by scheming In as can be seen that clamping device opening and clamping be not take up additional space, in body frame because section bar is intensive, operation is empty Between it is with the obvious advantage under small environment.Clamping device of the present utility model uses link rod structure, and chucking power can meet to be more than 300Kg The clamping requirement of welding stress, while be adjusted using pad, positioning precision disclosure satisfy that ± 0.2mm.
In the utility model, when the cross sectional shape difference of each section bar, it is only necessary to the shape of support block is redesigned, Versatility is stronger.
In the present embodiment, the second mounting seat, linkage, cylinder and protective cover have collectively constituted what section bar was compressed Hold-down mechanism.
The present embodiment is illustrated by taking section bar as an example, and in other embodiments, welding positioner of the present utility model is also suitable In other Workpiece clampings.
In the present embodiment, the second mounting seat is matrix, and cylinder constitutes driving cylinder, in other embodiments, driving cylinder It can be hydraulic cylinder etc..Cylinder piston rod is the take-off lever of drive rod, and the one end being hinged in connecting rod with take-off lever is by leading To groove and matrix, guiding movement coordinates on the stretching direction of take-off lever.The upper cell wall of guide groove constitutes position limiting structure, at it In his embodiment, position limiting structure can be other structures, if position limiting structure can be to coordinate with pressure arm block to limit pressure arm Swing the structure of the limit.
The specific embodiment of the utility model workpiece weld clamp device, structure and the above-mentioned reality of workpiece weld clamp device It is consistent to apply the structure of example, its content will not be repeated here.
The utility model workpiece welds the specific embodiment of hold-down mechanism, the structure and above-mentioned reality of workpiece welding hold-down mechanism It is consistent to apply the structure of example, its content will not be repeated here.

Claims (12)

1. a kind of workpiece welds hold-down mechanism, it is characterised in that:Including matrix and the driving cylinder being arranged side by side and for compressing work The pressure arm of part, one end of pressure arm are articulated with matrix, are connected between the take-off lever of driving cylinder and the center section of pressure arm by connecting rod Connect, the both ends of connecting rod are hinged with the take-off lever and pressure arm respectively, are existed in the connecting rod with one end that take-off lever is hinged and matrix Guiding movement coordinates on the stretching direction of take-off lever.
2. workpiece according to claim 1 welds hold-down mechanism, it is characterised in that:Hold-down mechanism also includes being used to limit institute The position limiting structure for one end limit of sports record being hinged in connecting rod with take-off lever is stated, during in the limit of sports record, the pressure arm is in can The position of workpiece pressing.
3. workpiece according to claim 2 welds hold-down mechanism, it is characterised in that:Offered in described matrix along take-off lever The guide groove of direction extension is stretched out, the hinge of the connecting rod and take-off lever coordinates with the guide groove guiding movement, the guiding One end cell wall of the remote driving cylinder of groove constitutes described position limiting structure.
4. the workpiece welding hold-down mechanism according to claim 1 ~ 3 any one, it is characterised in that:The connecting rod is provided with Operation handle.
A kind of 5. workpiece weld clamp device, it is characterised in that:Including Work-sheet pressing mechanism and workpiece support block, Work-sheet pressing machine Structure includes matrix, and hold-down mechanism also includes the driving cylinder being arranged side by side and for clamping workpiece together with the workpiece support block Pressure arm, one end of pressure arm are articulated with matrix, are connected between the take-off lever of driving cylinder and the center section of pressure arm by connecting rod, even The both ends of bar are hinged with the take-off lever and pressure arm respectively, and the one end being hinged in the connecting rod with take-off lever and matrix are in take-off lever Stretching direction on guiding movement coordinate.
6. workpiece weld clamp device according to claim 5, it is characterised in that:Hold-down mechanism also includes being used to limit institute The position limiting structure for one end limit of sports record being hinged in connecting rod with take-off lever is stated, during in the limit of sports record, the pressure arm is in can The position of workpiece pressing.
7. workpiece weld clamp device according to claim 6, it is characterised in that:Offered in described matrix along take-off lever The guide groove of direction extension is stretched out, the hinge of the connecting rod and take-off lever coordinates with the guide groove guiding movement, the guiding One end cell wall of the remote driving cylinder of groove constitutes described position limiting structure.
8. the workpiece weld clamp device according to claim 5 ~ 7 any one, it is characterised in that:The connecting rod is provided with Operation handle.
A kind of 9. workpiece welding positioner, it is characterised in that:Including base, the base is provided with one or more by setting The section bar clamping device of position distribution, section bar clamping device include Work-sheet pressing mechanism and workpiece support block, Work-sheet pressing mechanism Including matrix, hold-down mechanism also includes the driving cylinder being arranged side by side and the pressure for clamping workpiece together with the workpiece support block Arm, one end of pressure arm are articulated with matrix, are connected between the take-off lever of driving cylinder and the center section of pressure arm by connecting rod, connecting rod Both ends be hinged respectively with the take-off lever and pressure arm, one end and the matrix being hinged in the connecting rod with take-off lever are in take-off lever Guiding movement on direction is stretched out to coordinate.
10. workpiece welding positioner according to claim 9, it is characterised in that:Hold-down mechanism also includes described for limiting The position limiting structure of one end limit of sports record being hinged with take-off lever of connecting rod, during in the limit of sports record, the pressure arm is in and can pressed The position of clamping of workpieces.
11. workpiece welding positioner according to claim 10, it is characterised in that:Offer in described matrix and stretched along take-off lever The guide groove of outgoing direction extension, the hinge of the connecting rod and take-off lever coordinate with the guide groove guiding movement, the guide groove One end cell wall of remote driving cylinder constitute described position limiting structure.
12. the workpiece welding positioner according to claim 9 ~ 11 any one, it is characterised in that:The connecting rod is provided with behaviour Make handle.
CN201720563802.2U 2017-05-19 2017-05-19 Workpiece welding positioner, workpiece weld clamp device and its hold-down mechanism Active CN206883087U (en)

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CN201720563802.2U CN206883087U (en) 2017-05-19 2017-05-19 Workpiece welding positioner, workpiece weld clamp device and its hold-down mechanism

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Application Number Priority Date Filing Date Title
CN201720563802.2U CN206883087U (en) 2017-05-19 2017-05-19 Workpiece welding positioner, workpiece weld clamp device and its hold-down mechanism

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108942026A (en) * 2017-05-19 2018-12-07 郑州宇通客车股份有限公司 A kind of workpiece welding positioner, workpiece weld clamp device and its hold-down mechanism
CN108942052A (en) * 2018-09-04 2018-12-07 桂林航天工业学院 A kind of bus body skeleton welding fixture with turn over function
CN109263761A (en) * 2018-11-01 2019-01-25 河野精机(大连)有限公司 A kind of self-locking mechanism automatically opened in place manually with guide rail

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108942026A (en) * 2017-05-19 2018-12-07 郑州宇通客车股份有限公司 A kind of workpiece welding positioner, workpiece weld clamp device and its hold-down mechanism
CN108942052A (en) * 2018-09-04 2018-12-07 桂林航天工业学院 A kind of bus body skeleton welding fixture with turn over function
CN108942052B (en) * 2018-09-04 2023-06-20 桂林航天工业学院 Passenger car body framework welding fixture with overturning function
CN109263761A (en) * 2018-11-01 2019-01-25 河野精机(大连)有限公司 A kind of self-locking mechanism automatically opened in place manually with guide rail

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Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province

Patentee after: Yutong Bus Co.,Ltd.

Address before: 450016 Yutong Industrial Zone, eighteen Li River, Henan, Zhengzhou

Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd.

CP03 Change of name, title or address