Anti-collision beam welding tooling

Abstract

The utility model discloses a kind of anti-collision beam welding tool, for the welding of energy-absorbing box and anti-collision beam, including reference base plate, adapter base and positioning support assembly;Multiple positioning holes are equipped on the reference base plate, and the multiple positioning holes are regularly distributed on the reference base plate to form positioning area for responding to the positioning welding of different size anti-collision beams.The anti-collision beam welding tool of the application, the positioning area on reference base plate is composed of positioning hole, for the anti-collision beam and energy-absorbing box of different size, fixed hole can be formed by the combination of certain positioning hole, positioning support assembly is fixed on reference base plate according to the size of the anti-collision beam and energy-absorbing box to be welded by screwing and / or pinning mode through fixed hole, without adjusting again, improve the positioning accuracy and the firmness of workpiece fixation in welding process.

Description

Technical Field

[0001] This utility model relates to the field of anti-collision beam welding fixture technology, specifically to an anti-collision beam welding fixture. Background Technology

[0002] The front bumper beam assembly is a crucial energy-absorbing device in a car's bumper system, installed between the crossbeam and the longitudinal beams of the vehicle frame and connected to the energy-absorbing box. During production, the front bumper beam needs to be welded to the energy-absorbing box before being installed onto the front structure of the vehicle. High alignment precision is required between the energy-absorbing box and the bumper beam during welding to ensure that the impact force is transmitted to the energy-absorbing box during a collision. Due to the limited space at the welding point between the front bumper beam and the energy-absorbing box, robotic arms cannot effectively weld within this confined space; currently, manual welding remains the primary method. Furthermore, the connection dimensions and positions of the bumper beam and energy-absorbing box vary between different vehicle models. Existing technologies, such as CN221087767U, CN217913622U, and CN205237413U, tend to use welding fixtures for single-sized workpieces when fixing the bumper beam and energy-absorbing box. For workpieces of different sizes, shims, lead screws, cylinders, etc., can be used to adjust the workpiece position. However, adjusting the position using the aforementioned pads, lead screws, cylinders, etc. makes it difficult to control the adjustment accuracy during the manual welding process. Furthermore, the aforementioned pads, lead screws, cylinders, etc., will cause relative displacement when the workpiece is subjected to large clamping force, resulting in high errors and making it impossible to guarantee the precise welding of the anti-collision beam and the energy-absorbing box. Utility Model Content

[0003] In view of this, the purpose of this utility model embodiment is to provide a welding fixture for anti-collision beams, which can solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model provides a welding fixture for anti-collision beams, used for welding energy-absorbing boxes and anti-collision beams. The fixture is characterized by comprising a base plate, a transition base, and a positioning support assembly.

[0005] The reference base plate is provided with multiple positioning holes, which are regularly distributed on the reference base plate to form a positioning area for welding and positioning anti-collision beams of different sizes.

[0006] The positioning support assembly includes a crash beam support bracket, a crash beam positioning bracket, a front energy-absorbing box welding positioning bracket, and a rear energy-absorbing box welding positioning bracket. There are two of each of the crash beam support bracket, the crash beam positioning bracket, the front energy-absorbing box welding positioning bracket, and the rear energy-absorbing box welding positioning bracket, and they are arranged in pairs according to the size of the crash beam.

[0007] The adapter base has multiple components, each corresponding to one of the anti-collision beam support, the anti-collision beam positioning support, the front energy-absorbing box welding positioning support, and the rear energy-absorbing box welding positioning support, to fix the anti-collision beam support, the anti-collision beam positioning support, and the energy-absorbing box welding positioning support onto the reference base plate.

[0008] Based on the above structure, the adapter base is further provided with an adapter hole and a mounting hole. The adapter hole is used to engage with the positioning hole for screwing and / or pinning. The mounting hole is used to fix the positioning support assembly on the adapter base.

[0009] Based on the above structure, the anti-collision beam positioning support further includes a first support plate, a first adapter plate, and an L-shaped adapter block. The first support plate is fixed on the base, the first adapter plate is fixed on the upper part of the first support plate, and the L-shaped adapter block is fixed on one end of the first adapter plate.

[0010] Based on the aforementioned structure, the L-shaped adapter block is further provided with a first positioning pin.

[0011] Based on the aforementioned structure, the anti-collision beam support further includes a second support plate, a second transition plate, and a first clamp. The second support plate is fixed on the base, the second transition plate is fixed on the upper part of the second support plate, and the clamp is fixed on the upper part of the second transition plate.

[0012] Based on the above structure, the first fixture further includes a first multi-link operating part fixed on the second adapter plate, a support part connected to the first multi-link operating part, and a first clamping block fixed at the front end of the first multi-link operating part. The first multi-link operating part controls the first clamping block to move to clamp / release the anti-collision beam workpiece.

[0013] Based on the above structure, the rear energy-absorbing box welding positioning support further includes a third support plate, a third adapter plate, and a second clamp. The third support plate is fixed on the base, the third adapter plate is fixed on the upper part of the third support plate, and the second clamp is fixed on the upper part of the third adapter plate.

[0014] Based on the above structure, the second fixture further includes a second multi-link operating part and a second clamping block connected to the second multi-link operating part. The second multi-link operating part controls the movement of the second clamping block to clamp / release the energy-absorbing box workpiece.

[0015] Based on the above structure, the front energy-absorbing box welding positioning support further includes a fourth support plate, a fourth adapter plate, a third clamp, and a positioning pin support. The fourth support plate is fixed on the base, the fourth adapter plate is fixed on the upper part of the fourth support plate, the third clamp is fixed on the upper part of the fourth adapter plate, and the positioning pin support is disposed on one side of the clamp.

[0016] Beneficial effects:

[0017] The anti-collision beam welding fixture of this application has a positioning area on the reference base formed by positioning holes. For anti-collision beams and energy-absorbing boxes of different sizes, a combination of certain positioning holes can be used to form fixing holes. The positioning support component is fixedly set on the reference base according to the size of the anti-collision beam and energy-absorbing box to be welded through the fixing holes by screws and / or pins without further adjustment. This improves the positioning accuracy and the firmness of the workpiece during welding, avoids the errors caused by fixing with shims, lead screws, cylinders, etc., and improves the welding accuracy. At the same time, the multiple positioning holes can accommodate anti-collision beams and energy-absorbing box workpieces of different sizes, improving the applicability of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of one embodiment of the anti-collision beam welding fixture of this utility model;

[0019] Figure 2 This is a schematic diagram of one embodiment of the anti-collision beam positioning support of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of one embodiment of the anti-collision beam support of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of one embodiment of the welding positioning support for the rear energy-absorbing box in this utility model;

[0022] Figure 5 This is a structural schematic diagram of the support rod in this utility model, and a structural schematic diagram of an embodiment of the welding positioning support for the front energy-absorbing box. Detailed Implementation

[0023] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0024] It should be noted that all expressions such as "first", "second", and "third" used in the embodiments of this utility model are for the purpose of distinguishing multiple entities or parameters with the same name but different names. It can be seen that "first", "second", and "third" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0025] To achieve the above objectives, this utility model proposes a welding fixture for welding an energy-absorbing box to the anti-collision beam. Figure 1 This is a structural schematic diagram of the anti-collision beam welding fixture from one angle in this utility model. In this embodiment, a welding fixture for a crash beam includes a base plate 7, a transition base 8, and a positioning support assembly. The base plate has multiple positioning holes 71, which are regularly distributed to form a positioning area for welding crash beams of different sizes. The positioning support assembly includes a crash beam support 40, a crash beam positioning support 10, a front energy-absorbing box welding positioning support 30, and a rear energy-absorbing box welding positioning support 20. There are two of each of the crash beam support, positioning support, front energy-absorbing box welding positioning support, and rear energy-absorbing box welding positioning support, and they are arranged in pairs according to the size of the crash beam. Multiple transition bases are provided, each corresponding to one of the crash beam support, positioning support, front energy-absorbing box welding positioning support, and rear energy-absorbing box welding positioning support, to fix the crash beam support, positioning support, and energy-absorbing box welding positioning support to the base plate. (Refer to...) Figure 1 In the figure, multiple positioning holes 71 are regularly distributed on the base plate 7. During the welding process of the anti-collision beam 6 and the energy-absorbing box 9, different positioning holes can be selected according to the different sizes of the anti-collision beam and the energy-absorbing box to adapt the installation distance of the positioning support component. This ensures that the positioning installation component is always rigidly connected to the base plate, avoiding defects such as excessive tolerance or loosening under vibration when adjusting the installation distance by means of pads, lead screws, cylinders, etc. In the above positioning installation process, the positioning holes may not be able to be accurately adapted to anti-collision beams of certain shapes. Therefore, this application further uses an adapter base 8 to improve the adaptability. When the tooling of this embodiment is used to weld the anti-collision beam, the anti-collision beam is fixed by the positioning support component with its face down and facing the base plate. The energy-absorbing box is joined and welded to the anti-collision beam from above. In this application, unless otherwise described, the term "anti-collision beam" is used. Figure 1The direction of the central anti-collision beam towards the base plate is downward, and the direction towards the energy-absorbing box is upward. The left and right sides are defined along the length of the anti-collision beam, with the near end of the image considered front and the far end rear. In this embodiment, anti-collision beam positioning supports 10 are located at both ends of the anti-collision beam to restrict the movement of the left and right ends. Anti-collision beam support supports 40 are located on both sides of the anti-collision beam to support and restrict its vertical displacement. The front and rear energy-absorbing box welding positioning supports position the energy-absorbing boxes onto the anti-collision beam according to their welding positions. In this embodiment, the aforementioned anti-collision beam support supports, anti-collision beam positioning supports, front energy-absorbing box welding positioning supports, and rear energy-absorbing box welding positioning supports are all rigidly connected to the positioning area via adapter bases.

[0026] Based on the above embodiment, in this embodiment, the adapter base 8 is provided with adapter holes and mounting holes. The adapter holes are used to mate with the positioning holes for screwing and / or pinning, and the mounting holes are used to fix the positioning support assembly on the adapter base. In this embodiment, the adapter base is provided with multiple adapter holes, which are distributed in multiple rows along the longitudinal direction of the adapter base, and the spacing between adjacent adapter holes gradually increases. This adapter hole distribution method further increases the number of hole combinations for mating with the positioning holes, thereby improving the range of positioning size adjustment.

[0027] Combination Figure 2 Based on the above embodiment, the anti-collision beam positioning support 10 further includes a first support plate 102, a first adapter plate 101, and an L-shaped adapter block 104. The first support plate is fixed to the base 8, the first adapter plate is fixed to the upper part of the first support plate, and the L-shaped adapter block is fixed to one end of the first adapter plate. In this embodiment, the anti-collision beam positioning support is positioned at both ends of the anti-collision beam to limit its left and right displacement. The L-shaped adapter block of the anti-collision beam positioning support is supported at the end points of the anti-collision beam. Figure 1 In this embodiment, the L-shaped adapter block has multiple openings along the vertical direction that connect to the first adapter plate. These openings can adjust the fixed position of the L-shaped adapter block on the first adapter plate according to its needs, thereby improving the positioning of the L-shaped adapter block for different anti-collision beams. The L-shaped adapter block also has a first positioning pin 103, which pins the anti-collision beam to the anti-collision beam positioning support to further prevent the anti-collision beam from swaying left and right.

[0028] Reference Figure 3 The anti-collision beam support 40 includes a second support plate 404, a second transition plate 403, and a first clamp. The second support plate is fixed to the base 8, the second transition plate is fixed to the upper part of the second support plate, and the clamp is fixed to the upper part of the second transition plate. In this embodiment, combined with... Figure 1The anti-collision beam support 40 is fixed to the anti-collision beam by holding the anti-collision beam in place with the first clamp of the anti-collision beam, which further restricts the vertical displacement of the anti-collision beam when providing support.

[0029] Based on the above embodiment, further, in combination with Figure 3 The first clamp includes a first multi-link operating part 401 fixed to the second adapter plate, a support part 402 connected to the first multi-link operating part, and a first clamping block 406 fixed to the first multi-link operating part. The first multi-link operating part controls the movement of the first clamping block to clamp / release the anti-collision beam workpiece. In this embodiment, the first multi-link operating part 401 manually controls the clamping block to clamp or release the anti-collision beam via a handle. The forearm of the first multi-link operating part 401 is connected to the first clamping block 406, and the rear of the forearm is provided with a support part 402, which includes multiple support blocks. By adjusting the number of support blocks, the clamping angle of the forearm of the first multi-link operating part 401 can be controlled, thereby adapting to the clamping of anti-collision beams of different thicknesses.

[0030] Based on the above embodiment, further, such as Figure 4 The rear energy-absorbing box welding positioning support 20 includes a third support plate 205, a third adapter plate 202, and a second clamp. The third support plate is fixed on the base 8, the third adapter plate is fixed on the upper part of the third support plate, and the second clamp is fixed on the upper part of the third adapter plate.

[0031] Based on the above embodiment, further, in combination with Figure 5 The front energy-absorbing box welding positioning support 30 includes a fourth support plate 306, a fourth adapter plate 305, a third clamp, and a positioning pin support 308. The fourth support plate is fixed on the base, the fourth adapter plate is fixed on the upper part of the fourth support plate, the third clamp is fixed on the upper part of the fourth adapter plate, and the positioning pin support is disposed on one side of the clamp.

[0032] In the above embodiments of this application, the front and rear energy-absorbing box welding positioning supports are respectively disposed on the front and rear sides of the energy-absorbing box to be welded, and are used to position and restrict the energy-absorbing box within the welding area of ​​the anti-collision beam. The front energy-absorbing box welding positioning support is provided with a positioning pin support part to cooperate with the positioning pin on the rear energy-absorbing box welding positioning support to position and clamp the energy-absorbing box.

[0033] Based on the above embodiment, further, in combination with Figure 4 The second fixture includes a second multi-link operating unit 201 and a second clamping block 203 connected to the second multi-link operating unit. The second multi-link operating unit controls the movement of the second clamping block to clamp / release the energy-absorbing box workpiece.

[0034] Based on the above embodiment, further, in combination with Figure 5 The third clamp includes a third multi-link operating part 301, an L-shaped clamping block 303 connected to the third multi-link operating part, a support base 302 disposed between the third multi-link operating part and the L-shaped clamping block, and a second positioning pin 304 disposed on the fourth adapter plate. With the cooperation of the second and third clamps, the side plates and top of the energy-absorbing box are respectively positioned and clamped to improve clamping stability.

[0035] The anti-collision beam welding fixture of this application has a positioning area on the reference base formed by positioning holes. For anti-collision beams and energy-absorbing boxes of different sizes, a combination of certain positioning holes can be used to form fixing holes. The positioning support component is fixedly set on the reference base according to the size of the anti-collision beam and energy-absorbing box to be welded through the fixing holes by screws and / or pins without further adjustment. This improves the positioning accuracy and the firmness of the workpiece during welding, avoids the errors caused by fixing with shims, lead screws, cylinders, etc., and improves the welding accuracy. At the same time, the multiple positioning holes can accommodate anti-collision beams and energy-absorbing box workpieces of different sizes, improving the applicability of the equipment.

[0036] Although the present invention has been described in detail above with general description and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A welding fixture for a crash beam, used for welding an energy-absorbing box to a crash beam, characterized in that, Includes a base plate, adapter base, and positioning support components; The reference base plate is provided with multiple positioning holes, which are regularly distributed on the reference base plate to form a positioning area for welding and positioning anti-collision beams of different sizes; The positioning support assembly includes a crash beam support bracket, a crash beam positioning bracket, a front energy-absorbing box welding positioning bracket, and a rear energy-absorbing box welding positioning bracket. There are two of each of the crash beam support bracket, the crash beam positioning bracket, the front energy-absorbing box welding positioning bracket, and the rear energy-absorbing box welding positioning bracket, and they are arranged in pairs according to the size of the crash beam. The adapter base has multiple components, each corresponding to one of the anti-collision beam support, the anti-collision beam positioning support, the front energy-absorbing box welding positioning support, and the rear energy-absorbing box welding positioning support, to fix the anti-collision beam support, the anti-collision beam positioning support, and the energy-absorbing box welding positioning support onto the reference base plate.

2. The anti-collision beam welding fixture according to claim 1, characterized in that, The adapter base is provided with an adapter hole and a mounting hole. The adapter hole is used to engage with the positioning hole for screwing and / or pinning. The mounting hole is used to fix the positioning support assembly on the adapter base.

3. The anti-collision beam welding fixture according to claim 2, characterized in that, The anti-collision beam positioning support includes a first support plate, a first adapter plate, and an L-shaped adapter block. The first support plate is fixed on the base, the first adapter plate is fixed on the upper part of the first support plate, and the L-shaped adapter block is fixed on one end of the first adapter plate.

4. The anti-collision beam welding fixture according to claim 3, characterized in that, The L-shaped adapter block is also provided with a first positioning pin.

5. The anti-collision beam welding fixture according to claim 2, characterized in that, The anti-collision beam support includes a second support plate, a second transition plate, and a first clamp. The second support plate is fixed on the base, the second transition plate is fixed on the upper part of the second support plate, and the clamp is fixed on the upper part of the second transition plate.

6. The anti-collision beam welding fixture according to claim 5, characterized in that, The first fixture includes a first multi-link operating part fixed on the second adapter plate, a support part connected to the first multi-link operating part, and a first clamping block fixed at the front end of the first multi-link operating part. The first multi-link operating part controls the first clamping block to move to clamp / release the anti-collision beam workpiece.

7. The anti-collision beam welding fixture according to claim 2, characterized in that, The rear energy-absorbing box welding positioning support includes a third support plate, a third adapter plate, and a second clamp. The third support plate is fixed on the base, the third adapter plate is fixed on the upper part of the third support plate, and the second clamp is fixed on the upper part of the third adapter plate.

8. The anti-collision beam welding fixture according to claim 7, characterized in that, The second fixture includes a second multi-link operating unit and a second clamping block connected to the second multi-link operating unit. The second multi-link operating unit controls the movement of the second clamping block to clamp / release the energy-absorbing box workpiece.

9. The anti-collision beam welding fixture according to claim 2, characterized in that, The front energy-absorbing box welding positioning support includes a fourth support plate, a fourth adapter plate, a third clamp, and a positioning pin support. The fourth support plate is fixed on the base, the fourth adapter plate is fixed on the upper part of the fourth support plate, the third clamp is fixed on the upper part of the fourth adapter plate, and the positioning pin support is located on one side of the clamp.

10. The anti-collision beam welding fixture according to claim 2, characterized in that, The third clamp includes a third multi-link operating part, an L-shaped clamping block connected to the third multi-link operating part, a support seat disposed between the third multi-link operating part and the L-shaped clamping block, and a second positioning pin disposed on a fourth adapter plate.

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