CN202934304U - Car body welding jig four-bar linkage hold-down mechanism - Google Patents
Car body welding jig four-bar linkage hold-down mechanism Download PDFInfo
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- CN202934304U CN202934304U CN 201220636539 CN201220636539U CN202934304U CN 202934304 U CN202934304 U CN 202934304U CN 201220636539 CN201220636539 CN 201220636539 CN 201220636539 U CN201220636539 U CN 201220636539U CN 202934304 U CN202934304 U CN 202934304U
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Abstract
The utility model provides a car body welding jig four-bar linkage hold-down mechanism which comprises an air cylinder, a hold-down arm, a connecting plate and an L-shaped seat. Three connecting ends are arranged on the connecting plate, a piston rod of the air cylinder is connected with an A end of the connecting plate through a pin shaft, a B end of the connecting plate is connected with a hinge plate through a pin shaft, the other end of the hinge plate is connected with the middle portion of the lower end of the hold-down arm through a pin shaft, the right side of the L-shaped seat is welded with a left end face of a T-shaped connecting seat, and the right end of the connecting seat is connected with a C end of the connecting plate through a pin shaft. A clamp groove used for enabling the L-shaped seat to be abutted against the clamp groove is formed in the upper surface of the connecting seat, and the lower end of the right side face of the L-shaped seat is connected with the left end of the air cylinder wall through a pin shaft. According to the car body welding jig four-bar linkage hold-down mechanism, plastic deformation of the welding parts in the process of welding can be improved effectively, and installation accuracy of a car body sub assembly and a car body assembly is increased indirectly.
Description
Technical field
The utility model relates to a kind of clamping device of the fixing or location for workpiece, particularly relates to a kind of automobile body welding clamp four connecting rod hold-down mechanisms.
Background technology
In the welding process of body of a motor car sub-unit, body assembly, the weld jig welding auxiliary mould that is absolutely necessary.And, for weld jig, hold-down mechanism is again its inalienable part.Hold-down mechanism generally is used for fixing soldering part for various weld jigs, and welding job is carried out smoothly.Usually common hold-down mechanism is comprised of cylinder and a clamping arm.In the situation that welding deformation is larger, clamping arm loses pressuring action along with the distortion of soldering part, causes the distortion of automobile body welding assembly and assembly machining accuracy or installation accuracy can not meet specification requirement.
The utility model content
The purpose of this utility model is to provide a kind of automobile body welding clamp four connecting rod hold-down mechanisms, and it can effectively improve the plastic deformation of soldering part in welding process, indirectly improves machining accuracy or the installation accuracy of vehicle body sub-unit and body assembly simultaneously.
To achieve these goals, technical solution of the present utility model is: a kind of automobile body welding clamp four connecting rod hold-down mechanisms, comprise cylinder and clamping arm, described clamping arm is by in-line arm and vertical the connecting and composing of L shaped arm that is positioned at in-line arm bottom righthand side, wherein also comprise connecting plate and L shaped seat, there are three links on described connecting plate, the piston rod of described cylinder is hinged by the first link of bearing pin and connecting plate, the second link of described connecting plate is connected with an end of articulated slab by bearing pin, the other end of described articulated slab is connected with the middle part, lower end of L shaped arm by bearing pin, described L shaped seat comprises the first level board and is vertically connected at first vertical plate on the first level board right side, the right side of described the first vertical plate and the welding of the left side of Connection Block, described Connection Block forms by the second vertical plate with perpendicular to the second level board of the second vertical plate right side central, the right-hand member of described the second vertical plate is connected with the 3rd link of connecting plate by bearing pin, the upper surface of described Connection Block is provided with and can makes L shaped arm support draw-in groove thereon, the right flank lower end of described the second vertical plate is connected with the casing wall left side of cylinder by bearing pin.
The utility model automobile body welding clamp four connecting rod hold-down mechanisms, first, second and third link line of wherein said connecting plate forms isosceles triangle, and the line of described first and second link equates with the wire length of second and third link.
The utility model automobile body welding clamp four connecting rod hold-down mechanisms, wherein said connecting plate is provided with arc groove.
The utility model automobile body welding clamp four connecting rod hold-down mechanisms, the casing wall left surface upper end of wherein said cylinder is connected with hinged seat, and described hinged seat is connected with the right flank lower end of the second vertical plate by bearing pin.
After adopting such scheme, the utility model automobile body welding clamp four connecting rod hold-down mechanisms by connecting the connecting plate with three links between cylinder and clamping arm, articulated slab, L shaped arm and Connection Block, when in off working state, clamping arm and Connection Block are open configuration, when work, the piston rod of cylinder protrudes upward, drive connecting plate, articulated slab and clamping arm rotate counterclockwise respectively, and L shaped seat and Connection Block be take and clockwise rotated as rotating shaft with the hinged end of cylinder, make the opening between clamping arm and Connection Block closed gradually, in this process, the rotation of the rotation of clamping arm and Connection Block is all the time in oppositely, until reach the two motion dead point, make clamping arm compress soldering part, and when the soldering part deformation comparison large, the top clamping arm makes progress, clamping arm and the reverse micro-rotation of Connection Block meeting, be that clamping arm clockwise rotates, Connection Block rotates counterclockwise, effectively improve the plastic deformation of soldering part in welding process, indirectly improve machining accuracy or the installation accuracy of vehicle body sub-unit and body assembly simultaneously.
Further beneficial effect of the present utility model is: by first, second and third link line by connecting plate, form isosceles triangle, first and second link line is equated with the wire length of second and third link, the so effective rotational angle of the rotational angle of the rotational angle of control connection plate, clamping arm and Connection Block, thus the dead-centre position of clamping arm and Connection Block guaranteed.
Further beneficial effect of the present utility model is: connecting plate is provided with arc groove, can save materials, and convenient motion conditions of observing each parts, is convenient to control rotational angle.
Further beneficial effect of the present utility model is: the casing wall left surface upper end at cylinder is connected with hinged seat, and this hinged seat is connected with the right flank lower end of the second vertical plate by bearing pin, the convenient processing of design like this, installation.
The accompanying drawing explanation
The off working state front view that Fig. 1 is the utility model automobile body welding clamp four connecting rod hold-down mechanisms;
The off working state stereogram that Fig. 2 is the utility model automobile body welding clamp four connecting rod hold-down mechanisms;
The duty front view that Fig. 3 is the utility model automobile body welding clamp four connecting rod hold-down mechanisms;
The duty stereogram that Fig. 4 is the utility model automobile body welding clamp four connecting rod hold-down mechanisms.
The specific embodiment
As shown in Figure 3 and Figure 4, the utility model automobile body welding clamp four connecting rod hold-down mechanisms, comprise cylinder 1 and clamping arm 2, connecting plate 5 and L shaped seat 6.Clamping arm 2 is by in-line arm 3 and vertical the connecting and composing of L shaped arm 4 that is positioned at in-line arm 3 bottom righthand sides.Connecting plate 5 is the equilateral triangle shape.Be processed with circular groove 15 on the base of connecting plate 5.Three summits on connecting plate 5 are the first link A, the second link B and the 3rd link C.Wherein, the length of AB line all equates with the wire length of BC wire length and AC.The piston rod 7 of cylinder 1 is hinged by the first link A of bearing pin and connecting plate 5.The second link B of connecting plate 5 is connected with an end of articulated slab 8 by bearing pin, and the other end of articulated slab 8 is connected with the middle part, lower end of L shaped arm 4 by bearing pin.L shaped seat 6 by the first level board 9 be positioned at the first level board 9 right sides first vertical plate 10 is vertical connects and composes.The left side of the right side of the first vertical plate 10 and Connection Block 11 welds together.
The right-hand member of the second level board 13 is hinged by the 3rd link C of bearing pin and connecting plate 5.The upper surface of Connection Block 11 is provided with the bottom surface that can make L shaped arm 4 and supports draw-in groove 14 thereon, forms the motion dead point of L shaped arm 4.
The casing wall left surface upper end of cylinder 1 is vertically welded with hinged seat 16.The left end of hinged seat 16 is connected with the right flank lower end of the second vertical plate 12 by bearing pin.
Foregoing description is the structural representation of the utility model in working order the time, and now it just in time compresses the welding part (not shown)s by L shaped arm 4 and the first vertical plate 10.
Shown in Fig. 1 and Fig. 2, off working state schematic diagram for the utility model automobile body welding clamp four connecting rod hold-down mechanisms, when the compression work of welding part completes, shrink the piston rod 7 of cylinder 1, now connecting plate 5 and clamping arm 2 are all done and are clockwise rotated thereupon, and do and rotate counterclockwise with the hinged Connection Block 11 of the hinged seat 16 of cylinder 1, make clamping arm 2 and the opening of Connection Block 11 open gradually, clamping arm 2 breaks away from welding part gradually, so far the utility model automobile body welding clamp four connecting rod hold-down mechanisms have completed the compression work to welding part.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. automobile body welding clamp four connecting rod hold-down mechanisms, comprise cylinder (1) and clamping arm (2), described clamping arm (2) is by in-line arm (3) and vertical the connecting and composing of L shaped arm (4) that is positioned at in-line arm (3) bottom righthand side, it is characterized in that: also comprise connecting plate (5) and L shaped seat (6), there are three links on described connecting plate (5), the piston rod (7) of described cylinder (1) is hinged by the first link of bearing pin and connecting plate (5), the second link of described connecting plate (5) is connected with an end of articulated slab (8) by bearing pin, the other end of described articulated slab (8) is connected with the middle part, lower end of L shaped arm (4) by bearing pin, described L shaped seat (6) comprises the first level board (9) and is vertically connected at first vertical plate (10) on the first level board (9) right side, the left side welding of the right side of described the first vertical plate (10) and Connection Block (11), described Connection Block (11) forms by the second vertical plate (12) with perpendicular to second level board (13) of the second vertical plate (12) right side central, the right-hand member of described the second vertical plate (12) is connected with the 3rd link of connecting plate (5) by bearing pin, the upper surface of described Connection Block (11) is provided with and can makes L shaped arm (4) support draw-in groove (14) thereon, the right flank lower end of described the second vertical plate (12) is connected with the casing wall left side of cylinder (1) by bearing pin.
2. automobile body welding clamp four connecting rod hold-down mechanisms according to claim 1, it is characterized in that: first, second and third link line of described connecting plate (5) forms isosceles triangle, and the line of described first and second link equates with the wire length of second and third link.
3. automobile body welding clamp four connecting rod hold-down mechanisms according to claim 2, it is characterized in that: described connecting plate (5) is provided with arc groove (15).
4. automobile body welding clamp four connecting rod hold-down mechanisms according to claim 3, it is characterized in that: the casing wall left surface upper end of described cylinder (1) is connected with hinged seat (16), and described hinged seat (16) is connected with the right flank lower end of the second vertical plate (12) by bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220636539 CN202934304U (en) | 2012-11-27 | 2012-11-27 | Car body welding jig four-bar linkage hold-down mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220636539 CN202934304U (en) | 2012-11-27 | 2012-11-27 | Car body welding jig four-bar linkage hold-down mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202934304U true CN202934304U (en) | 2013-05-15 |
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ID=48318563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220636539 Expired - Fee Related CN202934304U (en) | 2012-11-27 | 2012-11-27 | Car body welding jig four-bar linkage hold-down mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202934304U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433669A (en) * | 2013-08-23 | 2013-12-11 | 芜湖奕辰模具科技有限公司 | Novel rocker arm type lower car body locating tool |
| CN104607844A (en) * | 2015-01-16 | 2015-05-13 | 苏州凯尔博精密机械有限公司 | Compression jig |
| CN105127376A (en) * | 2015-09-15 | 2015-12-09 | 浙江省机电设计研究院有限公司 | Anticollision upper blocking machine |
| CN105729018A (en) * | 2016-03-25 | 2016-07-06 | 奇瑞汽车股份有限公司 | Welding clamping mechanism |
| CN107552934A (en) * | 2017-10-19 | 2018-01-09 | 江门市霈霖卫浴科技有限公司 | Water outlet plate makes screw bolt machine detent mechanism automatically |
| CN108204392A (en) * | 2016-12-20 | 2018-06-26 | 天津威康医疗用品有限公司 | A kind of novel fast card |
| CN109909777A (en) * | 2017-12-13 | 2019-06-21 | 纳瑞盛（上海）实业有限公司 | A kind of workpiece positioning and pressing device for automatic production line |
| CN110253127A (en) * | 2019-06-12 | 2019-09-20 | 奇瑞汽车股份有限公司 | It is a kind of for U-shaped or the welder of V-arrangement workpiece |
| CN112793984A (en) * | 2021-01-26 | 2021-05-14 | 上海天永智能装备股份有限公司 | Cylinder opposite-clamping mechanism suitable for white vehicle body roller bed |
-
2012
- 2012-11-27 CN CN 201220636539 patent/CN202934304U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433669A (en) * | 2013-08-23 | 2013-12-11 | 芜湖奕辰模具科技有限公司 | Novel rocker arm type lower car body locating tool |
| CN104607844A (en) * | 2015-01-16 | 2015-05-13 | 苏州凯尔博精密机械有限公司 | Compression jig |
| CN105127376A (en) * | 2015-09-15 | 2015-12-09 | 浙江省机电设计研究院有限公司 | Anticollision upper blocking machine |
| CN105729018A (en) * | 2016-03-25 | 2016-07-06 | 奇瑞汽车股份有限公司 | Welding clamping mechanism |
| CN108204392A (en) * | 2016-12-20 | 2018-06-26 | 天津威康医疗用品有限公司 | A kind of novel fast card |
| CN107552934A (en) * | 2017-10-19 | 2018-01-09 | 江门市霈霖卫浴科技有限公司 | Water outlet plate makes screw bolt machine detent mechanism automatically |
| CN109909777A (en) * | 2017-12-13 | 2019-06-21 | 纳瑞盛（上海）实业有限公司 | A kind of workpiece positioning and pressing device for automatic production line |
| CN109909777B (en) * | 2017-12-13 | 2021-02-05 | 纳瑞盛（上海）实业有限公司 | Workpiece positioning and pressing device for automatic production line |
| CN110253127A (en) * | 2019-06-12 | 2019-09-20 | 奇瑞汽车股份有限公司 | It is a kind of for U-shaped or the welder of V-arrangement workpiece |
| CN110253127B (en) * | 2019-06-12 | 2021-12-28 | 奇瑞汽车股份有限公司 | Welding device for U-shaped or V-shaped workpiece |
| CN112793984A (en) * | 2021-01-26 | 2021-05-14 | 上海天永智能装备股份有限公司 | Cylinder opposite-clamping mechanism suitable for white vehicle body roller bed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20201127 |