Fixing tool for welding automobile trim panel

Abstract

The utility model relates to the technical field of automobile manufacturing, and discloses a fixing tool for automobile trim panel welding, which comprises a workbench, a plurality of sliding grooves are formed in the outer wall of the top of the workbench, sliding blocks are slidably connected to the inner walls of the sliding grooves, clamping blocks are rotatably connected to the outer walls of the tops of the sliding blocks, and fixing mechanisms are mounted on the outer walls of the clamping blocks. The fixing mechanism comprises clamping plates and lower pressing plates, the clamping blocks can horizontally rotate on the sliding blocks, the lower pressing plates can freely move and rotate at multiple angles through the spherical connecting pieces, and therefore the lower pressing plates and the clamping plates can be adjusted according to the specific shape and size of an automobile trim panel and can be better attached to the surface of the trim panel. According to the automobile trim panel fixing tool, automobile trim panels of different shapes and sizes can be firmly fixed, the application range of the tool is greatly expanded through the flexible fixing mode, the universality of the tool is improved, various special tools do not need to be designed for different automobile trim panels, and the production cost is reduced.

Description

Technical Field

[0001] This application relates to the field of automotive manufacturing technology, and in particular to a fixture for welding automotive trim panels. Background Technology

[0002] During the welding process of automotive trim panels, the trim panels need to be fixed to ensure the accuracy and quality of the welding. Currently, the existing automotive trim panel fixing fixtures have some shortcomings.

[0003] On the one hand, the existing tooling structure is relatively simple and the method of fixing automotive trim panels is not flexible enough, making it difficult to adapt to the fixing needs of automotive trim panels of different shapes and sizes.

[0004] On the other hand, existing tooling makes it difficult to guarantee the positioning accuracy of automotive trim panels when fixing them, which can easily lead to deviations in the welding position, thus affecting the welding quality of the trim panels and the overall quality of the vehicle. Furthermore, existing tooling is cumbersome to operate and inefficient, increasing the welding cost of automotive trim panels. Therefore, a new fixing tooling for welding automotive trim panels is proposed to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a fixing fixture for welding automotive trim panels, so as to solve the problems mentioned in the background art.

[0006] The fixing fixture for welding automotive trim panels provided in this application adopts the following technical solution:

[0007] A fixture for welding automotive trim panels includes a worktable, the top outer wall of which has multiple grooves, the inner wall of which is slidably connected to a slider, the top outer wall of which is rotatably connected to a clamping block, and the outer wall of which is fitted with a fixing mechanism.

[0008] The fixing mechanism includes a clamping plate and a lower pressure plate. A connecting rod is fixedly connected to the outer wall of the middle side of the clamping plate facing the clamping block. The connecting rod is slidably connected to the inner wall of the clamping block, and its end away from the clamping plate passes through the clamping block and is fixedly connected to an inclined block.

[0009] A fixing plate is welded to the outer wall of the top middle section of the clamping block. The lower pressure plate is located below the fixing plate. A lower pressure rod is movably connected to the top outer wall of the lower pressure plate through a ball connector. The lower pressure rod is slidably connected to the inner wall of the fixing plate, and its top end penetrates the fixing plate.

[0010] The top outer wall of the clamping block is rotatably connected to a connecting rod via a shaft frame. One end of the connecting rod is rotatably connected to a pulley, which abuts against the inclined block. The end of the connecting rod away from the pulley is movably connected to the top of the lower pressure rod via a movable groove.

[0011] The bottom outer wall of the worktable is equipped with a locking mechanism for quickly fixing the position of multiple sliders.

[0012] Preferably, a first spring is sleeved on the outer wall of the connecting rod, one end of the first spring is fixedly connected to the outer wall of the clamping plate, and the other end is fixedly connected to the outer wall of the clamping block.

[0013] Preferably, a second spring is sleeved on the outer wall of the pressure rod, the top end of the second spring is fixedly connected to the outer wall of the pressure rod, and its bottom end is fixedly connected to the top outer wall of the fixing plate.

[0014] Preferably, a limiting rod is fixedly connected to one side of the outer wall of the slider. The end of the limiting rod away from the slider passes through the slide groove and is slidably connected to the inside of the worktable. A third spring is sleeved on the outer wall of the limiting rod. One end of the third spring is fixedly connected to the outer wall of the slider, and the other end is fixedly connected to the inner wall of the slide groove.

[0015] Preferably, two sliding rods are fixedly connected to the outer wall of the clamping plate on the side facing the clamping block, and the ends of the two sliding rods away from the clamping plate pass through the clamping block and are slidably connected to it.

[0016] Preferably, the locking mechanism includes two lead screws and multiple locking plates. The lead screws are rotatably connected to the bottom outer wall of the worktable via a bearing seat. The locking plates are threadedly connected to the locking plates via nut rings. The multiple locking plates correspond to multiple sliders. The outer wall of the slider facing the locking plate is provided with multiple toothed grooves. The slider is matched and engaged with the locking plate through the toothed grooves.

[0017] Preferably, two self-locking motors are fixedly installed on the bottom outer wall of the worktable, and the output shaft of the self-locking motor is fixedly connected to one end of the lead screw. The bottom outer wall of the worktable is also fixedly connected to two fixing rods by a fixing bracket, and the locking plate is slidably connected to the fixing rods by a slip ring.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] 1. Multiple clamping blocks can rotate horizontally on the slider, and the lower pressure plate can move freely and rotate at multiple angles through the ball joint. This allows the multiple lower pressure plates and clamping plates to be adjusted according to the specific shape and size of the car trim panel, so as to better fit the trim panel surface and achieve a firm fixation of car trim panels of different shapes and sizes. This flexible fixing method greatly expands the applicability of the tooling and improves its versatility. There is no need to design multiple special tooling for different car trim panels, which reduces production costs.

[0020] 2. Through the cooperation of the fixing and locking mechanisms, not only can the clamping plate and the lower pressure plate accurately fix the automotive trim panel, but the clamping plate will also not elastically displace after the slider position is locked, ensuring the positioning accuracy of the automotive trim panel and effectively avoiding deviations in the welding position. This improves the welding quality of the automotive trim panel and the overall quality of the car. On the other hand, the operation process of this tooling is simple and convenient. The fixing and locking of the automotive trim panel can be quickly completed by moving the slider and starting the self-locking motor, reducing the operation steps, improving work efficiency, and reducing the welding cost of the automotive trim panel. It has high practicality and economic benefits. Attached Figure Description

[0021] Figure 1 This is an overall schematic diagram of an embodiment of the application;

[0022] Figure 2 This is an exploded view of an embodiment of the application;

[0023] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the first part of the embodiment of the application;

[0025] Figure 5 This is a schematic diagram of the second part of the embodiment of the application.

[0026] Explanation of reference numerals in the attached drawings: 1. Worktable; 2. Slide groove; 3. Clamping block; 4. Clamping plate; 5. Slide rod; 6. Connecting rod; 7. First spring; 8. Inclined block; 9. Shaft bracket; 10. Connecting rod; 11. Pulley; 12. Downward pressure rod; 13. Second spring; 14. Movable groove; 15. Fixed plate; 16. Spherical connector; 17. Downward pressure plate; 18. Sliding block; 19. Limiting rod; 20. Third spring; 21. Lead screw; 22. Locking plate; 23. Nut ring; 24. Self-locking motor; 25. Fixed rod; 26. Slip ring. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0028] This application discloses a fixing fixture for welding automotive trim panels. (Refer to...) Figure 1-4A fixed fixture for welding automotive trim panels includes a worktable 1, which serves as the basic support structure for the entire fixture. The worktable 1 has multiple grooves 2 on its top outer wall. These grooves 2 accommodate a slider 18 and allow it to slide within them. A limiting rod 19 is fixedly connected to one side of the outer wall of the slider 18. The end of the limiting rod 19 away from the slider 18 passes through the groove 2 and is slidably connected inside the worktable 1. A third spring 20 is sleeved on the outer wall of the limiting rod 19. One end of the third spring 20 is fixedly connected to the outer wall of the slider 18, and the other end is fixedly connected to the inner wall of the groove 2. The third spring 20 can buffer and reset the slider 18, and its elastic force can push the slider 18 to move.

[0029] A clamping block 3 is rotatably connected to the top outer wall of the slider 18. A fixing mechanism is installed on the clamping block 3, which includes a clamping plate 4 and a lower pressure plate 17. A connecting rod 6 is connected to the middle outer wall of the side of the clamping plate 4 facing the clamping block 3 via a first spring 7. The connecting rod 6 is slidably connected to the inner wall of the clamping block 3. The end of the connecting rod 6 away from the clamping plate 4 passes through the clamping block 3 and is fixedly connected to an inclined block 8. Two sliding rods 5 are also fixedly connected to the outer wall of the side of the clamping plate 4 facing the clamping block 3. The ends of the two sliding rods 5 away from the clamping plate 4 pass through the clamping block 3 and are slidably connected to it. The sliding rods 5 can guide the movement of the clamping plate 4. A fixing plate 15 is welded to the top middle section of the outer wall of the clamping block 3, and the lower pressure plate 17 is located on the fixing plate. Below 15, the top outer wall of the lower pressure plate 17 is movably connected to the lower pressure rod 12 via the ball connector 16. The lower pressure rod 12 is slidably connected to the inner wall of the fixed plate 15, and its top end penetrates through the fixed plate 15. The outer wall of the lower pressure rod 12 is sleeved with a second spring 13. The top end of the second spring 13 is fixedly connected to the outer wall of the lower pressure rod 12, and the bottom end is fixedly connected to the top outer wall of the fixed plate 15. The top outer wall of the clamping block 3 is rotatably connected to the connecting rod 10 via the shaft frame 9. One end of the connecting rod 10 is rotatably connected to the pulley 11. The pulley 11 abuts against the inclined block 8. The end of the connecting rod 10 away from the pulley 11 is movably connected to the top end of the lower pressure rod 12 via the movable groove 14.

[0030] A locking mechanism is installed on the bottom outer wall of the worktable 1 to quickly fix the position of multiple sliders 18. The locking mechanism includes two lead screws 21 and multiple locking plates 22. The lead screws 21 are rotatably connected to the bottom outer wall of the worktable 1 through a bearing seat. The locking plates 22 are threadedly connected to the lead screws 21 through a nut ring 23. The multiple locking plates 22 correspond to the multiple sliders 18. The outer wall of the slider 18 facing the locking plate 22 is provided with multiple toothed grooves. The slider 18 is matched and engaged with the locking plate 22 through the toothed grooves. Two self-locking motors 24 are fixedly installed on the bottom outer wall of the worktable 1. The output shaft end of the self-locking motor 24 is fixedly connected to one end of the lead screw 21 to drive the lead screw 21 to rotate. The bottom outer wall of the worktable 1 is also fixedly connected to two fixing rods 25 through a fixing bracket. The locking plates 22 are slidably connected to the fixing rods 25 through a slip ring 26. The inner wall of the slip ring 26 is provided with multiple balls to ensure that the locking plates 22 can slide smoothly on the fixing rods 25. The fixing rods 25 can guide and limit the movement of the locking plates 22.

[0031] The implementation principle of a fixing fixture for welding automotive trim panels according to an embodiment of this application is as follows: The automotive trim panel is placed on a workbench 1. The slider 18 is manually pushed to slide in the groove 2, allowing the clamping block 3 to accurately align with the part of the automotive trim panel that needs to be fixed. During the sliding process of the slider 18, the slider 18 compresses the third spring 20. The third spring 20 generates elastic force due to the compression, and this elastic force acts in the opposite direction on the slider 18. Since the elastic coefficient of the third spring 20 is greater than that of the first spring 7 and the second spring 13, the elastic force of the third spring 20 can overcome the elastic forces of the first spring 7 and the second spring 13, thereby driving a relative displacement between the clamping plate 4 and the clamping block 3. When the clamping plate 4 contacts... When the car trim panel is in contact with the clamping block 3, under the continuous action of the third spring 20, the clamping plate 4 moves further relative to the clamping block 3. At this time, the clamping plate 4 drives the inclined block 8 to move through the connecting rod 6. The inclined block 8 pushes the pulley 11 that abuts against it, thereby causing the connecting rod 10 to rotate around the shaft frame 9. The other end of the connecting rod 10 drives the lower pressure rod 12 to move downward through the movable groove 14. The lower pressure rod 12 then drives the lower pressure plate 17 to press downward through the ball connector 16, finally fixing the car trim panel tightly between the clamping block 3 and the lower pressure plate 17. In this process, the first spring 7 and the second spring 13 play the functions of buffering and resetting respectively, effectively reducing the impact force during the fixing process, making the fixing process more stable and reliable.

[0032] Since multiple clamping blocks 3 can rotate horizontally on slider 18, and the lower pressure plate 17 can move freely and rotate at multiple angles through ball connector 16, this structural design allows multiple lower pressure plates 17 and clamping plates 4 to flexibly adapt to the fixing requirements of car trim panels of different shapes and sizes. No matter how complex the surface shape of the car trim panel is, the lower pressure plate 17 and clamping plates 4 can better fit the surface of the car trim panel, thereby ensuring a firm fixation of the car trim panel.

[0033] After the pre-positioning of the car trim panel is completed, the self-locking motor 24 is started. The self-locking motor 24 drives the lead screw 21 to rotate. The lead screw 21 drives the locking plate 22 to move along the fixing rod 25 through the nut ring 23. When the locking plate 22 moves to align with the tooth groove on the slider 18, the locking plate 22 engages with the tooth groove of the slider 18, thereby firmly fixing the position of the slider 18. Since the elastic force of the third spring 20 is large enough to drive the clamping plate 4 to approach the clamping block 3 to the maximum extent, the clamping plate 4 will not undergo elastic displacement after the position of the slider 18 is locked, ensuring the stability of the car trim panel fixing and effectively preventing the slider 18 from moving during the welding process, ensuring that the fixing position of the car trim panel is accurate.

[0034] After the car trim panel is securely fixed, welding can be performed. After welding is completed, the self-locking motor 24 is turned off to separate the locking plate 22 from the toothed groove of the slider 18. At this time, under the action of the first spring 7 and the second spring 13, the clamping plate 4, the lower pressure rod 12 and other components return to their initial positions. Finally, the welded car trim panel is removed from the worktable 1, completing the entire process of fixing and disassembling the car trim panel.

[0035] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fixing tool for automobile trim panel welding, comprising a workbench (1), characterized in that: The top outer wall of the workbench (1) is provided with multiple sliding grooves (2), the inner wall of the sliding groove (2) is slidably connected to a slider (18), the top outer wall of the slider (18) is rotatably connected to a clamping block (3), and the outer wall of the clamping block (3) is equipped with a fixing mechanism. The fixing mechanism includes a clamping plate (4) and a lower pressure plate (17). A connecting rod (6) is fixedly connected to the outer wall of the middle side of the clamping plate (4) facing the clamping block (3). The connecting rod (6) is slidably connected to the inner wall of the clamping block (3). The end of the rod away from the clamping plate (4) passes through the clamping block (3) and is fixedly connected to an inclined block (8). A fixing plate (15) is welded to the outer wall of the top middle section of the clamping block (3). The lower pressure plate (17) is located below the fixing plate (15). The top outer wall of the lower pressure plate (17) is movably connected to a lower pressure rod (12) through a ball connector (16). The lower pressure rod (12) is slidably connected to the inner wall of the fixing plate (15), and its top end penetrates through the fixing plate (15). The top outer wall of the clamping block (3) is rotatably connected to a connecting rod (10) via a shaft frame (9). One end of the connecting rod (10) is rotatably connected to a pulley (11). The pulley (11) abuts against the inclined block (8). The end of the connecting rod (10) away from the pulley (11) is movably connected to the top of the pressure rod (12) via a movable groove (14). The bottom outer wall of the workbench (1) is equipped with a locking mechanism for quickly fixing the position of multiple sliders (18).

2. The fixture for welding of automotive trim panel according to claim 1, wherein: The outer wall of the connecting rod (6) is fitted with a first spring (7), one end of the first spring (7) is fixedly connected to the outer wall of the clamping plate (4), and the other end is fixedly connected to the outer wall of the clamping block (3).

3. The fixture for welding of automotive trim panel as claimed in claim 1 wherein: The outer wall of the pressure rod (12) is fitted with a second spring (13), the top end of the second spring (13) is fixedly connected to the outer wall of the pressure rod (12), and its bottom end is fixedly connected to the top outer wall of the fixing plate (15).

4. The fixture for welding of automotive trim panel according to claim 1, wherein: A limiting rod (19) is fixedly connected to one side of the outer wall of the slider (18). The end of the limiting rod (19) away from the slider (18) passes through the slide groove (2) and is slidably connected to the inside of the worktable (1). A third spring (20) is sleeved on the outer wall of the limiting rod (19). One end of the third spring (20) is fixedly connected to the outer wall of the slider (18), and the other end is fixedly connected to the inner wall of the slide groove (2).

5. The fixture for welding of automotive trim panel as claimed in claim 1 wherein: Two sliding rods (5) are fixedly connected to the outer wall of the clamping plate (4) facing the clamping block (3), and the ends of the two sliding rods (5) away from the clamping plate (4) pass through the clamping block (3) and are slidably connected to it.

6. The fixture for welding of automotive trim panel as claimed in claim 1 wherein: The locking mechanism includes two lead screws (21) and multiple locking plates (22). The lead screws (21) are rotatably connected to the bottom outer wall of the worktable (1) through a bearing seat. The locking plates (22) are threadedly connected to the locking plates (22) through a nut ring (23). The multiple locking plates (22) correspond to multiple sliders (18). The sliders (18) are provided with multiple tooth grooves on the outer wall of one side facing the locking plates (22). The sliders (18) are adapted to and engaged with the locking plates (22) through the tooth grooves.

7. The fixture for welding of automotive trim panel as claimed in claim 6 wherein: Two self-locking motors (24) are fixedly installed on the bottom outer wall of the workbench (1). The output shaft of the self-locking motor (24) is fixedly connected to one end of the lead screw (21). Two fixed rods (25) are also fixedly connected to the bottom outer wall of the workbench (1) through a fixed frame. The locking plate (22) is slidably connected to the fixed rods (25) through a slip ring (26).

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