Automatic welding and positioning device for automobile seat framework

Abstract

The utility model relates to the technical field of automobile seat production, in particular to an automatic welding and positioning device for an automobile seat framework, which comprises a bottom plate provided with a positioning component. The positioning assembly comprises two positioning plates, rectangular guide inner cavities are formed in the ends of the two positioning plates, abutting blocks are installed in the rectangular guide inner cavities, a driving motor drives a forward and reverse thread lead screw to rotate, the forward and reverse thread section of the lead screw is connected with a U-shaped adjusting block, and opposite or reverse movement of the U-shaped adjusting block is achieved. Due to the transmission structure design, the position of the abutting block can be accurately and flexibly adjusted, the automobile seat framework clamping device can adapt to automobile seat frameworks of different sizes and different models, frequent clamp replacement is not needed, the universality of the device is effectively improved, the production cost is reduced, and meanwhile the production efficiency is improved. And the production efficiency is obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat manufacturing technology, specifically to an automatic welding and positioning device for automotive seat frames. Background Technology

[0002] In the production of car seats, welding the seat frame is one of the key processes, and the welding quality directly affects the safety and comfort of the seat.

[0003] Currently, in the welding of car seat frames, most methods rely on manual positioning or simple fixing fixtures. Manual positioning depends on the operator's experience and skill, resulting in low positioning efficiency and difficulty in ensuring positioning accuracy. This leads to large dimensional deviations in the welded seat frame and a low product qualification rate. Simple fixing fixtures, on the other hand, have a fixed positioning structure and are difficult to adapt to car seat frames of different thicknesses, resulting in poor versatility. Therefore, this utility model proposes an automatic welding positioning device for car seat frames to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an automatic welding and positioning device for automobile seat frames to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic welding and positioning device for an automobile seat frame, comprising a base plate on which a positioning component is provided;

[0006] The positioning component includes positioning plates, with two sets of positioning plates forming a set. Each end of the two sets of positioning plates is provided with a rectangular guide cavity, and a stop block is installed in the rectangular guide cavity. One end of the stop block in the guide cavity of the two positioning plates is movably connected to a connecting rod block. The two connecting rod blocks are movably connected to a U-shaped adjusting block in an up-down combination. The left and right U-shaped adjusting blocks are respectively connected to the forward and reverse threaded sections of the adjusting rod. One end of the adjusting rod is connected to the output end of the drive motor.

[0007] The base plate is also provided with fixing blocks, which are respectively set inside the abutment blocks.

[0008] Preferably, the adjusting rod is a forward and reverse threaded rod, and the forward and reverse threaded sections of the adjusting rod are connected to the U-shaped adjusting blocks at the left and right ends.

[0009] Preferably, the abutting end face of the abutting block is provided with a protective sleeve, and the abutting end face of the fixing block is provided with anti-slip texture.

[0010] Preferably, the protective sleeve is installed on the end face of the abutment block in a snap-fit ​​manner, and the fixing block is installed on the base plate by bolts.

[0011] Preferably, the inner diameter of the rectangular guide cavity at the end of the positioning plate is in clearance fit with the outer diameter of the abutment block.

[0012] Preferably, the positioning plate has positioning pieces on both sides, and the positioning plate is mounted on the base plate through the positioning pieces.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The drive motor drives the positive and negative threaded screw to rotate. By connecting the positive and negative threaded sections of the screw with the U-shaped adjusting block, the U-shaped adjusting block can move in opposite directions or in opposite directions. Then, through the transmission of the connecting rod block, the abutment slides linearly in the rectangular guide cavity of the positioning plate. Due to this transmission structure design, the position of the abutment can be adjusted accurately and flexibly, so as to be able to adapt to different sizes and models of car seat frames. There is no need to frequently change the fixture, which effectively improves the versatility of the equipment, reduces production costs, and significantly improves production efficiency.

[0015] (2) The protective sleeves on the abutting end faces of the abutting blocks prevent scratches, wear, and other damage to the surface of the car seat frame during the positioning process, protecting the frame's appearance and quality. Meanwhile, the anti-slip texture on the abutting end faces of the fixing blocks increases friction with the frame, preventing frame displacement during welding and ensuring positioning stability. Furthermore, the snap-fit ​​installation of the protective sleeves facilitates replacement and maintenance, and the bolt-installed fixing blocks allow for easy disassembly and adjustment, further ensuring the safety and reliability of the entire positioning process and contributing to improved welding quality and product qualification rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the positioning component structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the positioning plate installation structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the mounting structure of the fixing block of this utility model.

[0020] In the diagram: 1. Base plate; 2. Positioning assembly; 21. Positioning plate; 211. Positioning piece; 22. Abutment block; 221. Protective sleeve; 23. Connecting rod block; 24. U-shaped adjusting block; 25. Adjusting rod; 26. Drive motor; 3. Fixing block; 31. Anti-slip texture. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 4 This utility model provides a technical solution: an automatic welding and positioning device for automobile seat frame, including a base plate 1, on which a positioning component 2 is provided;

[0023] The positioning component 2 includes a positioning plate 21. Two sets of positioning plates 21 form a set. Each end of the two sets of positioning plates 21 is provided with a rectangular guide cavity. A stop block 22 is installed in the rectangular guide cavity. One end of the stop block 22 in the guide cavity of the two positioning plates 21 is movably connected to the connecting rod block 23. The two connecting rod blocks 23 are movably connected to the U-shaped adjusting block 24 in an up-down combination. The left and right U-shaped adjusting blocks 24 are respectively connected to the forward and reverse threaded sections of the adjusting rod 25. One end of the adjusting rod 25 is connected to the output end of the drive motor 26.

[0024] The base plate 1 is also provided with fixing blocks 3, which are respectively set inside the abutment block 22.

[0025] Please see Figures 1 to 4 The adjusting rod 25 is specifically a positive and negative threaded rod. The positive and negative threaded sections of the adjusting rod 25 are connected to the U-shaped adjusting blocks 24 at the left and right ends. When the two threads of the positive and negative threaded rod rotate, they will drive the U-shaped adjusting blocks 24 on the left and right sides to move synchronously towards the center or separate to the sides, so that the clamping force of the end blocks 22 on the skeleton is completely symmetrical. At the same time, only one set of drive motors 26 is needed to achieve the clamping of the end blocks 22, which reduces the equipment cost.

[0026] Please see Figures 1 to 4 The abutting end face of the abutting block 22 is provided with a protective sleeve 221, and the abutting end face of the fixing block 3 is provided with anti-slip texture 31. The protective sleeve 221 is installed on the end face of the abutting block 22 in a snap-fit ​​manner, and the fixing block 3 is installed on the base plate 1 by bolts.

[0027] Please see Figures 1 to 4 The inner diameter of the rectangular guide cavity at the end of the positioning plate 21 is in clearance fit with the outer dimensions of the abutment block 22. The shape of the rectangular guide cavity can restrict the lateral swing and rotation of the abutment block 22, so that it can only move in a straight line along the axial direction of the cavity, thus avoiding the positioning deviation of the skeleton caused by the shaking of the abutment block 22.

[0028] Please see Figures 1 to 4Positioning plates 211 are provided on both sides of the positioning plate 21, and the positioning plate 21 is installed on the base plate 1 through the positioning plates 211.

[0029] In use, the car seat frame to be welded is placed stably on the base plate 1, so that the frame is located between the two sets of positioning plates 21 and in the corresponding area of ​​the fixing block 3 and the abutment block 22. The drive motor 26 is started again, and the drive motor 26 drives the adjusting rod 25 to rotate. Since the forward and reverse threaded sections of the adjusting rod 25 are connected to the U-shaped adjusting blocks 24 at the left and right ends respectively, during the rotation, the two U-shaped adjusting blocks 24 begin to move towards each other. The movement of the U-shaped adjusting blocks 24 is transmitted through the connecting rod block 23, which drives the abutment blocks 22 at both ends to move linearly in the rectangular guide cavity at the end of the positioning plate 21, gradually approaching the car seat frame. As the abutment block 22 moves, the protective sleeve 221 on its abutting end face contacts the frame. At the same time, the anti-slip texture 31 on the fixing block 3 also contacts the other side of the frame, finally clamping and fixing the car seat frame, completing the positioning. After the car seat frame is positioned, the welding equipment starts to work and performs welding operations on the frame. Due to the stable clamping of the abutment block 22 and the fixing block 3, as well as the function of the protective sleeve 221 and the anti-slip texture 31, the frame will not be displaced during the welding process, ensuring the welding quality. After welding is completed, the drive motor 26 is started in reverse, the adjusting rod 25 rotates in reverse, and the U-shaped adjusting block 24 moves in reverse. Through the connecting rod block 23, the abutment block 22 is driven away from the car seat frame in the rectangular guide cavity, releasing the clamping on the frame. At this time, the welded car seat frame can be taken out from the base plate 1 for subsequent processing. Then, the above steps are repeated to carry out the positioning welding work of the next seat frame.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic welding and positioning device for an automobile seat frame, comprising a base plate (1) and a positioning component (2) disposed on the base plate (1), characterized in that: The positioning component (2) includes a positioning plate (21). Two sets of positioning plates (21) form a set. The ends of both sets of positioning plates (21) are provided with rectangular guide cavities. A stop block (22) is installed in the rectangular guide cavity. One end of the stop block (22) in the guide cavity of the positioning plates (21) at both ends is movably connected to the connecting rod block (23). The two connecting rod blocks (23) are movably connected to the U-shaped adjusting block (24) in an up-down combination. The left and right U-shaped adjusting blocks (24) are respectively connected to the forward and reverse threaded sections of the adjusting rod (25). One end of the adjusting rod (25) is connected to the output end of the drive motor (26). The base plate (1) is also provided with fixing blocks (3), which are respectively set inside the abutment block (22).

2. The automatic welding and positioning device for an automobile seat frame according to claim 1, characterized in that: The adjusting rod (25) is specifically a forward and reverse threaded rod, and the forward and reverse threaded sections of the adjusting rod (25) are connected to the U-shaped adjusting blocks (24) at the left and right ends.

3. The automatic welding and positioning device for an automobile seat frame according to claim 1, characterized in that: The abutting end face of the abutting block (22) is provided with a protective sleeve (221), and the abutting end face of the fixing block (3) is provided with anti-slip texture (31).

4. The automatic welding and positioning device for an automobile seat frame according to claim 3, characterized in that: The protective sleeve (221) is installed on the end face of the abutment block (22) by a snap-fit ​​method, and the fixing block (3) is installed on the base plate (1) by bolts.

5. The automatic welding and positioning device for an automobile seat frame according to claim 1, characterized in that: The inner diameter of the rectangular guide cavity at the end of the positioning plate (21) is in clearance fit with the outer dimensions of the abutment block (22).

6. The automatic welding and positioning device for an automobile seat frame according to claim 5, characterized in that: The positioning plate (21) has positioning pieces (211) on both sides, and the positioning plate (21) is mounted on the base plate (1) through the positioning pieces (211).

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