Seat framework laser welding clamp

Abstract

The utility model discloses a laser welding clamp for a seat framework, and belongs to the technical field of automobile part machining and welding clamps. The device comprises a base, moving grooves are symmetrically formed in the top of the base, moving rods are rotationally connected into the moving grooves, moving blocks are in threaded connection with the surfaces of the moving rods, and mounting plates are arranged at the tops of the moving blocks; through cooperation of a base, a moving rod, a moving block, a mounting plate, a transmission strip, a transmission rod, a sleeve frame, a fixing column, a fixing pin, a servo motor, an assembling block, a transmission block, a connecting plate, a clamping frame, an electric push rod and a clamping block, the whole clamp can be divided into a plurality of independent standard modules; when the clamp breaks down, only the corresponding modules need to be adjusted or replaced independently, so that the maintenance time is shortened, the maintenance difficulty is reduced, and the production stagnation time caused by clamp faults can be shortened.

Description

Technical Field

[0001] This utility model belongs to the field of automotive component processing and welding fixture technology, specifically a laser welding fixture for a seat frame. Background Technology

[0002] The car seat frame is the most basic structural component of car seats in the automotive industry. It is generally processed and fixed by welding. The car seat frame needs to be fixed in position during welding, so it is necessary to develop a fixture changeover device that can ensure both output and quality while improving production efficiency. Currently, existing fixtures have complex structures and require a long time to change molds. A search revealed a Chinese patent application (202223501613.2) disclosing a welding fixture for automotive seats. This patent specifically relates to the field of welding fixtures. It includes a worktable, a fixture device, an adjustment assembly, and a fixing device. The adjustment assembly is located on the outer surface of the worktable, the fixture device on the outer surface of the adjustment assembly, and the fixing device on the outer surface of the fixture device. The adjustment assembly includes a rectangular rod with a first T-shaped groove slidably connected to its inner wall. A first threaded T-shaped block is slidably connected to the inner wall of the first T-shaped groove, and a first rectangular block is fixedly connected to the outer surface of the first threaded T-shaped block. This patent, through the cooperation of various components, allows the first threaded rod to be rotated to move the first threaded T-shaped block when the spacing needs to be adjusted, thereby adjusting the spacing of the fixture device support and solving the problem of frame wobbling affecting the quality of the finished product during welding.

[0003] Although the aforementioned patent, through the cooperation of various components, allows for the rotation of the first threaded rod to move the first threaded hole T-block when the spacing needs to be adjusted, thereby adjusting the spacing of the fixture support and solving the problem of frame wobbling affecting the quality of the finished product during welding, in actual use, this patent is an integrated design. When a part of the fixture malfunctions, the entire fixture often needs to be repaired or replaced, which not only increases the difficulty and time of repair but also leads to a significant increase in repair costs. At the same time, if a certain positioning component has a machining error during use, it cannot be adjusted or replaced individually, which will cause the positioning accuracy of the entire fixture to decrease. With long-term use and wear, it is difficult to perform accurate repair and calibration. This makes it easy for the seat frame to have positional deviations during welding, affecting the welding quality and causing the dimensional and shape accuracy of the seat frame to fail to meet the requirements, thus reducing the product qualification rate.

[0004] Therefore, a laser welding fixture for seat frames is needed to solve this problem. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a laser welding fixture for a seat frame. The welding fixture is composed of multiple standard modules. When a part of the fixture malfunctions, only the corresponding module needs to be adjusted or replaced individually. This not only shortens the maintenance time and reduces the maintenance difficulty, but also reduces the production downtime caused by fixture failure.

[0006] This utility model provides the following technical solution: a laser welding fixture for a seat frame, including a base, on the top of which are symmetrically provided with moving grooves, a moving rod rotatably connected inside the moving grooves, a moving block threadedly connected to the surface of the moving rod, a mounting plate on the top of the moving block, a transmission bar fixedly connected to the top of the mounting plate by a first bolt, a transmission port on the top of the transmission bar, a transmission rod rotatably connected inside the transmission port, one end of the moving rod and one end of the transmission rod respectively penetrating the base and the transmission bar and fixedly connected to a sleeve frame, a fixing post inside the sleeve frame, fixing holes on the top and bottom of the sleeve frame, fixing pins inside the fixing holes and threadedly connected to the fixing posts, a servo motor fixedly connected to the other end of the fixing post, the servo motor... An assembly block is fixedly connected to the bottom of the machine. Multiple second bolts are provided on the surface of the assembly block, and these bolts respectively mate with the base and mounting plate. A transmission block is threadedly connected to the surface of the transmission rod. A connecting plate is provided on the top of the transmission block. A mounting hole is opened on the top of the connecting plate, and a third bolt is threadedly connected inside the mounting hole, which is also threadedly connected to the transmission block. A clamping frame is symmetrically arranged on the top of the connecting plate, and positioning holes are symmetrically arranged on both sides of the clamping frame. A fourth bolt is provided inside the positioning hole, and this fourth bolt is threadedly connected to the connecting plate. An electric push rod is fixedly connected to the outer side of the clamping frame via a fifth bolt. The output end of the electric push rod passes through the clamping frame and is fixedly connected to a clamping block. The clamping block is slidably connected to the clamping frame and mates with its inner wall.

[0007] The beneficial effects of this utility model are as follows:

[0008] 1. This utility model, through the cooperation of a base, a moving rod, a moving block, a mounting plate, a transmission bar, a transmission rod, a sleeve frame, a fixed column, a fixed pin, a servo motor, an assembly block, a transmission block, a connecting plate, a clamping frame, an electric push rod, and a clamping block, can divide the entire fixture into multiple independent standard modules. When a certain part of the welding fixture malfunctions, only the corresponding module needs to be adjusted or replaced individually. This not only shortens the maintenance time and reduces the maintenance difficulty, but also reduces the production downtime caused by fixture failure.

[0009] 2. This utility model, through the setting of auxiliary holes, auxiliary columns, auxiliary plates and plug-in columns, can assist in the positioning of the seat frame, ensuring that the seat frame is in a stable state during the welding process, reducing deformation or displacement caused by gravity or external forces, thereby ensuring welding accuracy. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a three-dimensional schematic diagram of the structure of this utility model without clamping the seat frame.

[0012] Figure 3 This is a bottom-view perspective view of the mounting plate of this utility model.

[0013] Figure 4 This is a three-dimensional schematic diagram showing the combination of the electric telescopic rod and the toothed block of this utility model.

[0014] Figure 5 This is a three-dimensional schematic diagram showing the combination of the frame, fixing post, and fixing pin of this utility model.

[0015] Figure 6 This is a three-dimensional schematic diagram showing the coordinated arrangement of the transmission block, connecting plate, and clamping frame in this utility model. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] like Figures 1 to 6As shown, the seat frame laser welding fixture of this embodiment includes a base 1. A movable groove is symmetrically provided on the top of the base 1. A movable rod 2 is rotatably connected inside the movable groove. A movable block 3 is threadedly connected to the surface of the movable rod 2. A mounting plate 4 is provided on the top of the movable block 3. A transmission bar 5 is fixedly connected to the top of the mounting plate 4 by a first bolt. A transmission port is provided on the top of the transmission bar 5. A transmission rod 6 is rotatably connected inside the transmission port. One end of the movable rod 2 and one end of the transmission rod 6 respectively pass through the base 1 and the transmission bar 5 and are fixedly connected to a sleeve 7. A fixing post 8 is provided inside the sleeve 7. Fixing holes are provided at the top and bottom of the sleeve 7. Fixing pins 9 are provided inside the fixing holes and are threadedly connected to the fixing post 8. A servo motor 10 is fixedly connected to the other end of the fixing post 8. An assembly block 11 is fixedly connected to the bottom of the servo motor 10. The surface of the assembly block 11 is provided with multiple... A second bolt is provided, and multiple second bolts are respectively configured to cooperate with the base 1 and the mounting plate 4. The surface of the transmission rod 6 is threadedly connected to the transmission block 12. The top of the transmission block 12 is provided with the connecting plate 13. The top of the connecting plate 13 is provided with the mounting hole. The interior of the mounting hole is threadedly connected to the third bolt, and the third bolt is threadedly connected to the transmission block 12. The top of the connecting plate 13 is symmetrically provided with the clamping frame 14. The two sides of the clamping frame 14 are symmetrically provided with the positioning holes. The interior of the positioning holes is provided with the fourth bolt, and the fourth bolt is threadedly connected to the connecting plate 13. The outer side of the clamping frame 14 is fixedly connected to the electric push rod 15 by the fifth bolt. The output end of the electric push rod 15 passes through the clamping frame 14 and is fixedly connected to the clamping block 16. The clamping block 16 is slidably connected to the clamping frame 14 and is configured to cooperate with its inner wall. The surface of the clamping block 16 and the inner side of the clamping frame 14 are both fixedly connected with rubber pads.

[0018] refer to Figure 1 and Figure 2 The base 1 has several auxiliary holes 17 on its top, and these auxiliary holes 17 are arranged in a uniform array. An auxiliary post 18 is snapped into the top of the auxiliary hole 17. A protective sleeve is fitted on the surface of the auxiliary post 18. An auxiliary plate 19 is provided on the top of the auxiliary hole 17. An insertion hole is provided on the top of the auxiliary plate 19. An insertion post 20 is snapped into the inside of the insertion hole. The insertion post 20 is configured to cooperate with the auxiliary hole 17. A handle is fixedly connected to the top of the insertion post 20. There are several auxiliary posts 18, auxiliary plates 19 and insertion posts 20, which can be selected and used according to actual needs.

[0019] This embodiment uses auxiliary holes 17, auxiliary posts 18, auxiliary plates 19 and plug-in posts 20 to assist in positioning the seat frame, ensuring that the seat frame remains stable during welding, reducing deformation or displacement caused by gravity or external forces, and thus ensuring welding accuracy.

[0020] refer to Figure 2 and Figure 3The top of the base 1 is symmetrically provided with a sliding groove 21 about the moving groove. The bottom of the mounting plate 4 is symmetrically fixedly connected with a slider 22 about the moving block 3, and the slider 22 is slidably connected with the sliding groove 21. The bottom of the slider 22 is provided with multiple rollers, and the multiple rollers are all slidably connected with the sliding groove 21.

[0021] This embodiment improves the stability of the mounting plate 4 during translation by setting up the slide groove 21, the slider 22 and the roller, so that it can only perform linear movement.

[0022] refer to Figure 2 and Figure 4 A positioning groove 23 is provided on one side of the top of the base 1. A toothed plate 24 is fixedly connected inside the positioning groove 23. An electric telescopic rod 25 is fixedly connected to one side of the top of the mounting plate 4 by a sixth bolt. The output end of the electric telescopic rod 25 passes through the mounting plate 4 and is fixedly connected to a toothed block 26. The toothed block 26 is set to cooperate with the toothed plate 24.

[0023] This embodiment, through the arrangement of positioning groove 23, toothed plate 24, electric telescopic rod 25 and toothed block 26, can assist in positioning the position of mounting plate 4, thereby further enhancing the stability of the seat frame during clamping and ensuring that the welding accuracy of the seat frame is not affected by shaking or displacement during welding.

[0024] refer to Figure 1 and Figure 2 An expansion slot is provided at the top of the movable slot, and the expansion slot is slidably connected to the movable block 3.

[0025] In this embodiment, the bottom of the mounting plate 4 can be stored in the expansion slot, and collisions with the moving slot can be avoided.

[0026] refer to Figure 1 and Figure 2 The edges of the base 1 are all chamfered, and the four corners of the bottom of the base 1 are all fixedly connected to support blocks (not shown).

[0027] In this embodiment, the edges and corners of the base 1 are all chamfered. During the production operation, the chamfering of the edges and corners of the base 1 can effectively eliminate some safety hazards, reduce the risk of accidental injury to workers, and ensure the safety of the working environment. The support blocks can provide auxiliary support for the base 1.

[0028] Connect the device to an external power source. Then, adjust the positions of the clamping frames 14 and clamping blocks 16 according to the dimensions of the seat frame. Activate the servo motor 10 connected to the moving rod 2, which rotates the corresponding moving rod 2, causing the moving block 3 to move. This moves the mounting plate 4 inwards or outwards, adjusting the distance between the two clamping frames 14 and clamping blocks 16. Activate the servo motor 10 connected to the transmission rod 6, which similarly moves the mounting plate 4 laterally to the left or right. Place both sides of the seat frame into the clamping frames 14 on either side. Activate the electric push rod 15 to clamp the seat frame with the clamping blocks 16. Insert the insertion pin 20 into the auxiliary pin 18, so that its protective sleeve abuts against the seat frame, or the surface of the auxiliary plate 19 abuts against the seat frame. Use the insertion pin 20 to hold the auxiliary plate 19 in place. After clamping and fixing the seat frame, when a part of the welding fixture malfunctions or needs to be upgraded, it can be removed by the first bolt, allowing the transmission bar 5 to be removed independently. Then, the fixing pin 9 at the corresponding position is removed from the sleeve 7. The servo motor 10 can be removed independently by the second bolt, the connecting plate 13 can be removed independently by the third bolt, the clamping frame 14 can be removed independently by the fourth bolt, the electric push rod 15 can be removed independently by the fifth bolt, and the electric telescopic rod 25 can be removed independently by the sixth bolt. This allows each component to be formed into a standard module, and only the corresponding module needs to be adjusted or replaced individually. This not only shortens the maintenance time and reduces the maintenance difficulty, but also reduces the production downtime caused by the failure of the welding fixture.

Claims

1. A seat frame laser welding jig comprising a base (1), characterized in that: The top of the base (1) is symmetrically provided with a moving groove, the inside of the moving groove is rotationally connected with a moving rod (2), the surface of the moving rod (2) is threadedly connected with a moving block (3), the top of the moving block (3) is provided with a mounting plate (4), the top of the mounting plate (4) is fixedly connected with a transmission bar (5) through a first bolt, the top of the transmission bar (5) is provided with a transmission opening, the inside of the transmission opening is rotationally connected with a transmission rod (6), one end of the moving rod (2) and one end of the transmission rod (6) penetrate through the base (1) and the transmission bar (5) respectively and are fixedly connected with a sleeve frame (7), the inside of the sleeve frame (7) is provided with a fixed column (8), the top and the bottom of the sleeve frame (7) are provided with a fixed hole, the inside of the fixed hole is provided with a fixed pin (9), and the fixed pin (9) is threadedly connected with the fixed column (8), the other end of the fixed column (8) is fixedly connected with a servo motor (10), the bottom of the servo motor (10) is fixedly connected with an assembly block (11), the surface of the assembly block (11) is provided with a plurality of second bolts, and the plurality of second bolts are respectively arranged in cooperation with the base (1) and the mounting plate (4), the surface of the transmission rod (6) is threadedly connected with a transmission block (12), the top of the transmission block (12) is provided with a connecting plate (13), the top of the connecting plate (13) is provided with a mounting hole, the inside of the mounting hole is threadedly connected with a third bolt, and the third bolt is threadedly connected with the transmission block (12), the top of the connecting plate (13) is symmetrically provided with a clamping frame (14), the two sides of the clamping frame (14) are symmetrically provided with a positioning hole, the inside of the positioning hole is provided with a fourth bolt, and the fourth bolt is threadedly connected with the connecting plate (13), the outside of the clamping frame (14) is fixedly connected with an electric push rod (15) through a fifth bolt, the output end of the electric push rod (15) penetrates through the clamping frame (14) and is fixedly connected with a clamping block (16), and the clamping block (16) is slidably connected with the clamping frame (14) and is arranged in cooperation with the inner wall thereof.

2. The seat frame laser welding fixture of claim 1, wherein: The top of the base (1) is provided with a plurality of auxiliary holes (17), and the plurality of auxiliary holes (17) are uniformly arranged in an array, the top of the auxiliary hole (17) is clamped with an auxiliary column (18), the surface of the auxiliary column (18) is sleeved with a protective sleeve, the top of the auxiliary hole (17) is provided with an auxiliary plate (19), the top of the auxiliary plate (19) is provided with a plug-in hole, the inside of the plug-in hole is clamped with a plug-in column (20), and the plug-in column (20) is arranged in cooperation with the auxiliary hole (17).

3. The seat frame laser welding fixture of claim 2, wherein: The top of the base (1) is symmetrically provided with a sliding groove (21) about the moving groove, the bottom of the mounting plate (4) is symmetrically fixedly connected with a sliding block (22) about the moving block (3), and the sliding block (22) is slidably connected with the sliding groove (21), the bottom of the sliding block (22) is provided with a plurality of rollers, and the plurality of rollers are all rollingly connected with the sliding groove (21).

4. The seat frame laser welding fixture of claim 3, wherein: The side of the top of the base (1) is provided with a positioning groove (23), the inside of the positioning groove (23) is fixedly connected with a toothed plate (24), one side of the top of the mounting plate (4) is fixedly connected with an electric telescopic rod (25) through the sixth bolt, the output end of the electric telescopic rod (25) penetrates the mounting plate (4) and is fixedly connected with a toothed block (26), and the toothed block (26) is matched with the toothed plate (24).

5. The seat frame laser welding fixture of claim 4, wherein: The top of the moving groove is provided with an expansion groove, and the expansion groove is in sliding connection with the moving block (3).

6. A seat frame laser welding fixture according to claim 5, wherein: The edges of the base (1) are all arranged in a chamfered manner, and the four corners of the bottom of the base (1) are all fixedly connected with supporting blocks.

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