Automobile part welding jig

Abstract

The utility model relates to the technical field of automobile part welding, in particular to an automobile part welding jig which is provided with a first guide sleeve and a second guide sleeve, and after a first clamping assembly is matched with a positioning rod, and a second clamping assembly is matched with a positioning block, a first part and a second part are limited in the axial direction; and then the first component and the second component are limited in the radial direction through the first guide sleeve and the second guide sleeve correspondingly, so that the situation that the welding process is affected due to the fact that the first component or the second component shakes in the radial direction in the welding process is reduced, and the welding quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts welding technology, specifically to an automotive parts welding fixture. Background Technology

[0002] Automotive parts are an important component of automobiles, and they are typically assembled using welding methods.

[0003] like Figure 1 and Figure 2 As shown, component one and component two need to be welded onto two carrier plates first. Then, the two ends of component three, which has a cylindrical rod structure, are welded onto the two carrier plates. The carrier plates are provided with mounting holes for mounting component one or component two. Both component one and component two include an end with a diameter larger than the mounting hole and a mounting part with a diameter smaller than or equal to the mounting hole diameter. The cross-section of the mounting part of both component one and component two is circular. During installation, the mounting part of component one or component two passes through the mounting hole, with the end positioned above the mounting hole and in contact with the carrier plate. Then, the end is welded to the mounting hole.

[0004] Existing automotive component welding fixtures, when welding parts one and two, typically place the mounting portions of parts one and two on a flat surface to prevent them from wobbling during welding. A cylinder then drives a pressure block to press down on the end of either part one or part two. The flat surface and pressure block work together to limit the movement of part one or part two. The central axis of the mounting portion is used as a reference; the direction parallel to the central axis is the axial direction, and the direction parallel to the diameter of the mounting portion is the radial direction. However, this method has the following problems: the flat surface and pressure block can only limit the movement of part one or part two axially. During welding, part one or part two wobbles in the radial direction, affecting the welding process and reducing weld quality. Utility Model Content

[0005] The technical solution adopted by this utility model to solve its technical problem is: to provide a welding fixture for automotive parts, comprising:

[0006] A first clamping assembly is used to hold the carrier plate and component one in place;

[0007] The second clamping assembly is used to hold the carrier plate and component two in place;

[0008] A support assembly includes a first support structure, a second support structure, and a third support structure. The first support structure supports a carrier plate. The second support structure includes a second mounting block and a second guide sleeve connected to the second mounting block. The second mounting block is provided with a positioning rod. The positioning rod and a first clamping assembly abut against both ends of a component in the axial direction. The second guide sleeve is fitted onto the component, and the inner diameter of the second guide sleeve is adapted to the component. The third support structure includes a first mounting block and a first guide sleeve connected to the first mounting block. The first mounting block is provided with a positioning block. The positioning block and the second clamping assembly abut against both ends of a component in the axial direction. The first guide sleeve is fitted onto the component, and the inner diameter of the first guide sleeve is adapted to the component.

[0009] Furthermore, the first mounting block is provided with a sliding groove, the positioning block is slidably disposed in the sliding groove, a telescopic spring is sleeved on the positioning block, the groove wall of the sliding groove is provided with a telescopic groove for placing the telescopic spring, one end of the telescopic spring is connected to the positioning block, and the other end of the telescopic spring is connected to the telescopic groove.

[0010] Furthermore, both the first clamping assembly and the second clamping assembly include a first pressing cylinder and a first pressing block disposed at the output end of the first pressing cylinder. The first pressing block is connected to a first pressing block, a second pressing block, and a third pressing block. The first pressing cylinder is used to drive the first pressing block and the second pressing block to press against the carrier plate, and the first pressing cylinder is used to drive the third pressing block to press against component one or component two.

[0011] Furthermore, the first support structure is provided with at least two sets, the first support structure includes a third mounting block and a fourth mounting block, the third mounting block is connected to a first positioning post, the fourth mounting block is connected to a second positioning post, the first positioning post corresponds to a circular hole on the carrier plate, the second positioning post corresponds to an arc groove on the carrier plate, the first pressing block is provided with a positioning groove adapted to the first positioning post, and the second pressing block corresponds to the second positioning post.

[0012] Furthermore, it also includes a third clamping assembly, which comprises two clamping modules arranged opposite to each other. The two clamping modules are respectively used to clamp a carrier plate with component one welded on it and a carrier plate with component two welded on it. Each clamping module includes a pusher cylinder, a frame connected to the output end of the pusher cylinder, and a second pressing cylinder disposed on the frame. The output end of the second pressing cylinder is provided with a second pressing block. A support plate is connected to the frame, and a support block is connected to the support plate. A third limiting block corresponding to the second pressing block is provided on the support block. The third limiting block is used to cooperate with the second pressing block to clamp the carrier plate. The pusher cylinder is used to drive the second pressing block to approach the carrier plate, and the second pressing cylinder is used to drive the second pressing block to press down on the carrier plate.

[0013] Furthermore, the support block is provided with a first limiting block and a second limiting block. The first limiting block is used to place the end of component three, and the second limiting block is used to place component one or component two. The pushing cylinder is used to drive the second pressing block to approach the carrier plate, and the second pressing cylinder is used to drive the second pressing block to press down on the carrier plate.

[0014] Furthermore, the third clamping assembly also includes a placement block disposed between the two clamping modules, the placement block having a placement slot for placing component three.

[0015] Furthermore, the first pressing cylinder and the first pressing block, as well as the second pressing cylinder and the second pressing block, are all connected by a linkage mechanism. The linkage mechanism includes a first connecting rod and a second connecting rod that are rotatably connected. The first connecting rod is rotatably connected to the output end of the first pressing cylinder or the output end of the second pressing cylinder. The second connecting rod is rotatably connected to the cylinder body of the first pressing cylinder or the cylinder body of the second pressing cylinder. The first connecting rod is fixedly connected to the first pressing block or the second pressing block.

[0016] The beneficial effects of this utility model are as follows: by setting the first guide sleeve and the second guide sleeve, after the first clamping assembly and the positioning rod, and the second clamping assembly and the positioning block respectively limit the axial direction of component one and component two, the first guide sleeve and the second guide sleeve respectively limit the radial direction of component one and component two, thereby reducing the situation where the welding process is affected by the radial shaking of component one or component two during the welding process, thereby improving the welding quality. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] In the picture: Figure 1 This is a three-dimensional structural diagram of the assembled components one, two, and three as described in the background art.

[0019] Figure 2 for Figure 1 Exploded view of the structure shown;

[0020] Figure 3 An overall structural diagram of an automotive parts welding fixture provided in an embodiment of this utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 for Figure 3 A three-dimensional structural diagram of the part shown;

[0023] Figure 6for Figure 5 A cross-sectional view of the structure shown;

[0024] Figure 7 for Figure 3 A three-dimensional structural diagram of the part shown;

[0025] Figure 8 for Figure 7 A cross-sectional view of the structure shown;

[0026] Figure 9 for Figure 8 Enlarged view at point B in the middle;

[0027] Figure 10 for Figure 3 A partial structural diagram of the third clamping component is shown below;

[0028] Figure 11 for Figure 9 A cross-sectional view of the structure shown.

[0029] Explanation of reference numerals in the attached drawings: 100, welding fixture for automotive parts; 10, first clamping assembly; 11, first pressing cylinder; 12, first pressing block; 13, first pressing block; 131, positioning groove; 14, second pressing block; 15, third pressing block; 20, second clamping assembly; 31, first support structure; 311, third mounting block; 3111, first positioning post; 312, fourth mounting block; 3121, second positioning post; 32, second support structure; 321, second mounting block; 3211, positioning rod; 322, second guide sleeve; 33, third support structure; 331, first mounting block; 3311, sliding groove; 3312, positioning block; 3313, telescopic... Spring; 3314, Telescopic groove; 332, First guide sleeve; 41, Clamping module; 411, Pushing cylinder; 412, Carrier frame; 4121, Support plate; 4122, Support block; 4123, First limiting block; 4124, Second limiting block; 4125, Groove; 4126, Third limiting block; 413, Second pressing cylinder; 4131, Second pressing block; 42, Placement block; 421, Placement groove; 51, First connecting rod; 52, Second connecting rod; 200, Component one; 201, Component two; 2011, End; 2012, Mounting part; 202, Component three; 203, Carrier plate; 2031, Mounting hole; 2032, Round hole; 2033, Arc groove. Detailed Implementation

[0030] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] Please refer to Figure 3 This utility model provides an automotive parts welding fixture 100, including a first clamping assembly 10, a second clamping assembly 20, a support assembly, and a third clamping assembly, to... Figure 3 The assembly state of component 1 200, component 2 201 and component 3 202 is taken as the reference. At this time, the central axis of component 3 202 is horizontal and the length direction of the carrier plate 203 is vertical.

[0032] Please refer to Figure 3 and Figure 4 Both the first clamping assembly 10 and the second clamping assembly 20 include a first pressing cylinder 11 and a first pressing block 12 disposed at the output end of the first pressing cylinder 11. A first pressing block 13, a second pressing block 14, and a third pressing block 15 are fixedly connected to the first pressing block 12. The first pressing cylinder 11 drives the first pressing block 13 and the second pressing block 14 to press against the carrier plate 203, and the first pressing cylinder 11 drives the third pressing block 15 to press against component one 200 or component two 201. Specifically, due to the arrangement of the first pressing block 13, the second pressing block 14, and the third pressing block 15, such as... Figure 4 As shown, the first pressing block 12 is a block structure with three branches. The first pressing block 13, the second pressing block 14 and the third pressing block 15 are arranged side by side along the length of the carrier plate 203, and the third pressing block 15 is located between the first pressing block 13 and the second pressing block 14.

[0033] The first clamping assembly 10 is used to press down the carrier plate 203 and component one 200, and the second clamping assembly 20 is used to press down the carrier plate 203 and component two 201.

[0034] Please refer to Figure 3 The support assembly includes a first support structure 31, a second support structure 32, and a third support structure 33. The first support structure 31 supports the carrier plate 203, the second support structure 32 supports component one 200, and the third support structure 33 supports component two 201. Specifically, in this embodiment, the first support structure 31 is provided in two sets, and the two sets of support structures correspond to the first clamping assembly 10 and the second clamping assembly 20, respectively.

[0035] Please refer to Figure 7 and Figure 8 The third support structure 33 includes a first mounting block 331 and a first guide sleeve 332 fixedly connected to the first mounting block 331. The first guide sleeve 332 is sleeved on component 201, and the inner diameter of the first guide sleeve 332 is adapted to component 201. The first mounting block 331 is provided with a sliding groove 3311, and a positioning block 3312 is provided in the sliding groove 3311. The positioning block 3312 is used to cooperate with the second clamping assembly 20 to abut against both ends of component 201 in the axial direction. Furthermore, both ends of component 201 are in contact with the third pressing block 15 and the positioning block 3312, respectively. Specifically, in this embodiment, the mounting portion 2012 of component two 201 has a cylindrical structure at one end near the end 2011, and a frustum-shaped structure at the other end away from the end 2011. The mounting portion 2012 of component two 201 passes through the mounting hole 2031 and the first guide sleeve 332 on the carrier plate 203 in sequence. The end 2011 of component two 201 is in contact with the carrier plate 203, and the other end of the mounting portion 2012 of component two 201 extends into the sliding groove 3311 and contacts the positioning block 3312.

[0036] Please refer to Figure 7 , Figure 8 and Figure 9 A telescopic spring 3313 is fitted onto the positioning block 3312. The sliding groove 3311 has a telescopic groove 3314 for placing the telescopic spring 3313. One end of the telescopic spring 3313 is fixedly connected to the positioning block 3312, and the other end is fixedly connected to the telescopic groove 3314. By providing the telescopic spring 3313, when the third pressing block 15 presses down on the second component 201, the second component 201 presses against the positioning block 3312, compressing the telescopic spring 3313. The elastic force of the telescopic spring 3313 partially offsets the pressure received by the positioning block 3312, thereby reducing damage to the positioning block 3312.

[0037] Please refer to Figure 5 and Figure 6The second support structure 32 includes a second mounting block 321 and a second guide sleeve 322 connected to the second mounting block 321. The second guide sleeve 322 is sleeved on the component 200, and the inner diameter of the second guide sleeve 322 is adapted to the component 200. The second mounting block 321 is provided with a positioning rod 3211, which is used to cooperate with the first clamping assembly 10 to abut against both ends of the component 200 in the axial direction. Further, one end of the positioning rod 3211 passes through the second guide sleeve 322 and cooperates with the third pressing block 15 to clamp the component 200. Specifically, in this embodiment, the mounting part 2012 of the component 200 is cylindrical. The mounting part 2012 of the component 200 passes through the mounting hole 2031 on the carrier plate 203 and then passes through the second guide sleeve 322. The positioning rod 3211 supports the end 2011 of the component 200.

[0038] By setting the first guide sleeve 332 and the second guide sleeve 322, after the first clamping assembly 10 and the positioning rod 3211, and the second clamping assembly 20 and the positioning block 3312 respectively limit the first component 200 and the second component 201 in the axial direction, the first guide sleeve 332 and the second guide sleeve 322 respectively limit the first component 200 and the second component 201 in the radial direction. This reduces the impact of the welding process on the welding process caused by the radial shaking of the first component 200 or the second component 201, thereby improving the welding quality.

[0039] Specifically, in this embodiment, since the length of component 1 200 is much smaller than the length of component 2 201, but the lengths of the first guide sleeve 332 and the second guide sleeve 322 are the same, during welding, the mounting part 2012 of component 1 200 is located inside the first guide sleeve 332, and the mounting part 2012 of component 2 201 passes through the first guide sleeve 332. Therefore, the length of the positioning rod 3211 is greater than the length of the positioning block 3312.

[0040] Please refer to Figure 5 and Figure 6 The first support structure 31 includes a third mounting block 311 and a fourth mounting block 312. A first positioning post 3111 is fixedly connected to the third mounting block 311, and a second positioning post 3121 is fixedly connected to the fourth mounting block 312. The first positioning post 3111 corresponds to the circular hole 2032 on the carrier plate 203, and the second positioning post 3121 corresponds to the arc-shaped groove 2033 on the carrier plate 203. The first pressing block 13 is provided with a positioning groove 131 adapted to the first positioning post 3111, and the second pressing block 14 corresponds to the second positioning post 3121. Through the cooperation of the first positioning post 3111 and the third mounting block 311, and the cooperation of the second positioning post 3121 and the fourth mounting block 312, the carrier plate 203 is further limited, making it less likely to shake during welding.

[0041] Please refer to Figure 3 , Figure 10 and Figure 11 The third clamping assembly includes two clamping modules 41 arranged opposite to each other. The two clamping modules 41 are respectively used to clamp the carrier plate 203 with component 1 200 welded on it and the carrier plate 203 with component 201 welded on it. The clamping module 41 includes a pusher cylinder 411, a carrier frame 412 connected to the output end of the pusher cylinder 411, and a second pressing cylinder 413 disposed on the carrier frame 412. The output end of the second pressing cylinder 413 is provided with a second pressing block 4131. A support plate 4121 is fixedly connected to the carrier frame 412, and a support block 4122 is fixedly connected to the support plate 4121. The support block 4122 is provided with a second pressing block 4131. A first limiting block 4123 and a second limiting block 4124, and a third limiting block 4126 corresponding to the second pressing block 4131. The first limiting block 4123 is used to place the end 2011 of component three 202. The second limiting block 4124 is used to place the mounting part 2012 of component one 200 or the mounting part 2012 of component two 201. The third limiting block 4126 is used to cooperate with the second pressing block 4131 to clamp the carrier plate 203. The pushing cylinder 411 is used to drive the second pressing block 4131 to approach the carrier plate 203. The second pressing cylinder 413 is used to drive the second pressing block 4131 to press the carrier plate 203. Specifically, in this embodiment, the first limiting block 4123 and the second limiting block 4124 are respectively provided with grooves 4125 for placing component three 202, component one 200 or component two 201, and the second pressing block 4131 extends from one side of the carrier plate 203 along the length direction and presses the carrier plate 203. The first limiting block 4123 and the second limiting block 4124 are arranged side by side along the vertical direction.

[0042] Please refer to Figure 3 The third clamping assembly also includes a placement block 42 disposed between the two clamping modules 41. The placement block 42 has a placement groove 421 for placing the third component 202. The placement block 42 supports the third component 202. Specifically, in this embodiment, the placement groove 421 is horizontally arranged, and both ends of the third component 202 pass through the arc-shaped grooves 2033 of the two carrier plates 203 and are respectively placed into the two first limiting blocks 4123.

[0043] Please refer to Figure 4 and Figure 10The first pressing cylinder 11 and the first pressing block 12, the second pressing cylinder 413 and the second pressing block 4131 are all connected by a linkage mechanism. The linkage mechanism includes a first connecting rod 51 and a second connecting rod 52 that are rotatably connected. The first connecting rod 51 is rotatably connected to the output end of the first pressing cylinder 11 or the output end of the second pressing cylinder 413. The second connecting rod 52 is rotatably connected to the cylinder body of the first pressing cylinder 11 or the cylinder body of the second pressing cylinder 413. The first connecting rod 51 is fixedly connected to the first pressing block 12 or the second pressing block 4131. The second connecting rod 52 limits the rotation range of the first connecting rod 51.

[0044] When the first pressing block 12 or the second pressing block 4131 is pressed down, the first pressing cylinder 11 or the second pressing cylinder 413 drives one end of the first connecting rod 51 to rotate, thereby causing the first pressing block 12 or the second pressing block 4131 to rotate and press down the carrier plate 203.

Claims

1. A welding fixture for automotive parts, characterized in that... ,include: A first clamping assembly is used to hold the carrier plate and component one in place; The second clamping assembly is used to hold the carrier plate and component two in place; A support assembly includes a first support structure, a second support structure, and a third support structure. The first support structure supports a carrier plate. The second support structure includes a second mounting block and a second guide sleeve connected to the second mounting block. The second mounting block is provided with a positioning rod. The positioning rod and a first clamping assembly abut against both ends of a component in the axial direction. The second guide sleeve is fitted onto the component, and the inner diameter of the second guide sleeve is adapted to the component. The third support structure includes a first mounting block and a first guide sleeve connected to the first mounting block. The first mounting block is provided with a positioning block. The positioning block and the second clamping assembly abut against both ends of a component in the axial direction. The first guide sleeve is fitted onto the component, and the inner diameter of the first guide sleeve is adapted to the component.

2. The automotive parts welding fixture according to claim 1, characterized in that: The first mounting block is provided with a sliding groove, the positioning block is slidably disposed in the sliding groove, a telescopic spring is sleeved on the positioning block, the groove wall of the sliding groove is provided with a telescopic groove for placing the telescopic spring, one end of the telescopic spring is connected to the positioning block, and the other end of the telescopic spring is connected to the telescopic groove.

3. The automotive parts welding fixture according to claim 1, characterized in that: The first clamping assembly and the second clamping assembly both include a first pressing cylinder and a first pressing block disposed at the output end of the first pressing cylinder. A first pressing block, a second pressing block and a third pressing block are connected to the first pressing block. The first pressing cylinder is used to drive the first pressing block and the second pressing block to press the carrier plate. The first pressing cylinder is used to drive the third pressing block to press component one or component two.

4. The automotive parts welding fixture according to claim 3, characterized in that: The first support structure is provided with at least two sets, including a third mounting block and a fourth mounting block. A first positioning post is connected to the third mounting block, and a second positioning post is connected to the fourth mounting block. The first positioning post corresponds to a circular hole on the carrier plate, and the second positioning post corresponds to an arc groove on the carrier plate. The first pressing block is provided with a positioning groove adapted to the first positioning post, and the second pressing block corresponds to the second positioning post.

5. The automotive parts welding fixture according to claim 3, characterized in that: It also includes a third clamping assembly, which comprises two clamping modules arranged opposite to each other. The two clamping modules are respectively used to clamp a carrier plate with component one welded on it and a carrier plate with component two welded on it. Each clamping module includes a pusher cylinder, a frame connected to the output end of the pusher cylinder, and a second pressing cylinder disposed on the frame. The output end of the second pressing cylinder is provided with a second pressing block. A support plate is connected to the frame, and a support block is connected to the support plate. A third limiting block corresponding to the second pressing block is provided on the support block. The third limiting block is used to cooperate with the second pressing block to clamp the carrier plate. The pusher cylinder is used to drive the second pressing block to approach the carrier plate, and the second pressing cylinder is used to drive the second pressing block to press down on the carrier plate.

6. The automotive parts welding fixture according to claim 5, characterized in that: The support block is provided with a first limiting block and a second limiting block. The first limiting block is used to place the end of component three, and the second limiting block is used to place component one or component two. The pushing cylinder is used to drive the second pressing block to approach the carrier plate, and the second pressing cylinder is used to drive the second pressing block to press down on the carrier plate.

7. The automotive parts welding fixture according to claim 5, characterized in that: The third clamping assembly also includes a placement block disposed between the two clamping modules, the placement block having a placement slot for placing component three.

8. The automotive parts welding fixture according to claim 5, characterized in that: The first pressing cylinder and the first pressing block, as well as the second pressing cylinder and the second pressing block, are all connected by a linkage mechanism. The linkage mechanism includes a first connecting rod and a second connecting rod that are rotatably connected. The first connecting rod is rotatably connected to the output end of the first pressing cylinder or the output end of the second pressing cylinder. The second connecting rod is rotatably connected to the cylinder body of the first pressing cylinder or the cylinder body of the second pressing cylinder. The first connecting rod is fixedly connected to the first pressing block or the second pressing block.

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