Auxiliary welding device for seat frame skeleton sub-assembly

Abstract

The utility model relates to the technical field of automobile seat production and processing, in particular to a seat frame skeleton subassembly welding auxiliary device which comprises a welding platform, a cavity is formed in the welding platform, a plurality of strip-shaped holes are formed in the top of the welding platform at equal intervals, and sliding rods are fixedly arranged in the strip-shaped holes. First sliding plates and second sliding plates are slidably arranged on the two sides of the rod wall of the sliding rod correspondingly, the lower ends of the two first sliding plates and the lower ends of the two second sliding plates extend into the cavity, linkage mechanisms are arranged at the positions, located between the corresponding first sliding plates and the second sliding plates, in the cavity, and lead screws are arranged at the positions, located on the lower sides of the multiple second sliding plates, in the cavity. The two ends of the lead screw are rotationally connected with the cavity walls of the two sides of the cavity through rolling bearings, and the lower ends of the multiple first sliding plates are in threaded connection with the rod wall of the lead screw. According to the welding fixture, a plurality of connecting beams can be clamped at the same time, so that the plurality of connecting beams can be welded conveniently, time and labor are saved, and the welding precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seat production and processing, in particular to a seat frame skeleton sub-assembly welding auxiliary device. Background Art

[0002] Seats are an indispensable part of passenger trains, which are usually composed of seat seats and seat frames. The seat frames of existing passenger trains are simpler than those of automobiles, and often include a frame and a connecting beam in the middle. The frame and the connecting beam are usually welded from square pipes, so the quality of the seat frame welding directly affects the service life of the seat.

[0003] In the prior art, the frame part of the seat is composed of a seat frame and a plurality of connecting beams welded between the frames. However, it is not convenient to quickly clamp and position the multiple connecting beams during welding, resulting in low welding efficiency and insufficient welding accuracy. Therefore, we have introduced a seat frame frame sub-assembly welding auxiliary device. Utility Model Content

[0004] The purpose of the utility model is to provide a seat frame skeleton sub-assembly welding auxiliary device, which can clamp multiple connecting beams at the same time, thereby facilitating the welding of multiple connecting beams, which not only saves time and effort, but also improves the welding accuracy, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A seat frame skeleton sub-assembly welding auxiliary device comprises a welding platform, wherein a cavity is provided inside the welding platform, a plurality of strip holes are provided at equal intervals on the top of the welding platform, a plurality of the strip holes are fixedly provided with sliding rods, a first slide plate and a second slide plate are slidably provided on both sides of the rod wall of the sliding rod, the lower ends of the two first slide plates and the second slide plates extend into the cavity, a linkage mechanism is provided inside the cavity between the corresponding first slide plates and the second slide plates, a screw rod is provided inside the cavity at the lower side of the plurality of second slide plates, both ends of the screw rod are rotatably connected to the cavity walls on both sides of the cavity through rolling bearings, the lower ends of the plurality of first slide plates are threadedly connected to the rod wall of the screw rod, a motor is fixedly provided on the outer wall of the welding platform, the output end of the motor passes through the welding platform and is fixedly connected to one end of the screw rod, a plurality of thread grooves are provided on the first slide plate and the second slide plate, a plurality of clamping blocks are provided on the upper ends of the first slide plate and the second slide plate, a mounting hole is provided on the upper ends of the plurality of clamping blocks, and the mounting hole is threadedly connected to the thread groove through bolts.

[0007] Preferably, the linkage mechanism includes a gear, which is rotatably arranged inside the cavity between the first slide plate and the second slide plate through a rotating shaft, and gear rods are provided on the upper and lower sides of the gear, and the two gear rods are meshed with the gear, and the opposite ends of the two gear rods are fixedly connected to the first slide plate and the second slide plate respectively.

[0008] Preferably, the two clamping blocks have arc-shaped surfaces on opposite sides thereof.

[0009] Preferably, a limiting block is fixedly provided at the upper end of each of the first slide plate and the second slide plate at the thread groove, and a limiting groove cooperating with the limiting block is provided at the bottom of the clamping block.

[0010] Preferably, a support block is fixedly provided at the bottom of the welding platform.

[0011] Preferably, the plurality of support blocks are all wear-resistant rubber blocks.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The seat frame skeleton sub-assembly welding auxiliary device places multiple connecting beams respectively between the first and second slides corresponding to the upper ends of the welding platform through the provided screw rod, the first slide plate, the second slide plate, the linkage mechanism, the clamping blocks and the bolts, and starts the motor. The output end of the motor drives the screw rod to rotate, and the screw rod drives the multiple first slide plates to move. The multiple first slide plates drive the second slide plates to move through the gears and the gear rod. The first slide plate and the second slide plate are always close to or far away from each other, and can drive the multiple clamping blocks to clamp the multiple connecting beams at the same time, so as to facilitate the welding of the multiple connecting beams, which not only saves time and labor, but also improves the welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a structural schematic diagram of a seat frame skeleton sub-assembly welding auxiliary device.

[0015] Figure 2 The present invention is a side structural schematic diagram of a seat frame skeleton subassembly welding auxiliary device.

[0016] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the figure.

[0017] In the figure: 1. first slide plate; 2. second slide plate; 3. motor; 4. welding platform; 5. bolt; 6. clamping block; 7. screw rod; 8. slide rod; 9. limit block; 10. gear rod; 11. gear. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figures 1 to 3 , the utility model provides a technical solution:

[0020] A seat frame skeleton sub-assembly welding auxiliary device comprises a welding platform 4, a cavity is provided inside the welding platform 4, a plurality of strip holes are provided at equal intervals on the top of the welding platform 4, a sliding rod 8 is fixed in each of the plurality of strip holes, a first sliding plate 1 and a second sliding plate 2 are slidingly provided on both sides of the rod wall of the sliding rod 8, the lower ends of the two first sliding plates 1 and the second sliding plates 2 extend into the cavity, a linkage mechanism is provided between the corresponding first sliding plates 1 and the second sliding plates 2 inside the cavity, a screw rod 7 is provided at the lower side of the plurality of second sliding plates 2 inside the cavity, both ends of the screw rod 7 are rotatably connected to the cavity walls on both sides of the cavity through rolling bearings, the lower ends of the plurality of first sliding plates 1 are threadedly connected to the rod walls of the screw rod 7, a motor 3 is fixedly provided on the outer wall of the welding platform 4, the output end of the motor 3 penetrates into the welding platform 4 and is fixedly connected to one end of the screw rod 7, a plurality of thread grooves are provided on each of the first sliding plate 1 and the second sliding plate 2, a plurality of clamping blocks 6 are provided at the upper ends of the first sliding plate 1 and the second sliding plate 2, a mounting hole is provided at the upper ends of the plurality of clamping blocks 6, and a mounting hole is provided in the mounting hole, and the mounting hole is threadedly connected to the thread groove through a bolt 5.

[0021] The linkage mechanism includes a gear 11, which is rotatably arranged inside the cavity between the first slide 1 and the second slide 2 through a rotating shaft. Gear rods 10 are provided on the upper and lower sides of the gear 11. The two gear rods 10 are meshed with the gear 11, and the ends of the two gear rods 10 that are away from each other are fixedly connected to the first slide 1 and the second slide 2 respectively.

[0022] The two clamping blocks 6 are provided with arc-shaped surfaces on opposite sides thereof, and the arc-shaped surfaces facilitate the two clamping blocks 6 to clamp the seat frame.

[0023] Limiting blocks 9 are fixedly provided at the upper ends of the first slide plate 1 and the second slide plate 2 at the thread grooves, and a limiting groove matching with the limiting block 9 is provided at the bottom of the clamping block 6 .

[0024] Support blocks are fixedly provided at the bottom of the welding platform 4. The multiple support blocks are wear-resistant rubber blocks. The support blocks improve the stability of the welding platform 4 when it is placed.

[0025] When in use, multiple connecting beams are placed respectively between the first slide plate 1 and the second slide plate 2 corresponding to the upper end of the welding platform 4, and the motor 3 is started. The output end of the motor 3 drives the screw rod 7 to rotate, and the screw rod 7 drives the multiple first slide plates 1 to move. The multiple first slide plates 1 drive the second slide plates 2 to move through the gear 11 and the gear rod 10. The first slide plate 1 and the second slide plate 2 are always close to or far away from each other, which can drive the multiple clamping blocks 6 to clamp the multiple connecting beams at the same time, thereby facilitating the welding of the multiple connecting beams, which not only saves time and effort, but also improves the welding accuracy.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seat frame skeleton sub-assembly welding auxiliary device, comprising a welding platform (4), characterized in that: The welding platform (4) has a cavity inside, and a plurality of strip holes are formed at equal intervals on the top of the welding platform (4). Slide rods (8) are fixed in the plurality of strip holes. A first slide plate (1) and a second slide plate (2) are slidably provided on both sides of the rod wall of the slide rod (8). The lower ends of the first slide plates (1) and the second slide plates (2) extend into the cavity. A linkage mechanism is provided between the corresponding first slide plates (1) and the second slide plates (2). A screw rod (7) is provided at the lower side of the plurality of second slide plates (2). Both ends of the screw rod (7) are connected by a screw rod (7). The rolling bearing is rotatably connected to the cavity walls on both sides of the cavity, the lower ends of the plurality of first slide plates (1) are threadedly connected to the rod wall of the screw rod (7), the outer wall of the welding platform (4) is fixedly provided with a motor (3), the output end of the motor (3) penetrates into the welding platform (4) and is fixedly connected to one end of the screw rod (7), the first slide plate (1) and the second slide plate (2) are both provided with a plurality of thread grooves, the upper ends of the first slide plate (1) and the second slide plate (2) are both provided with a plurality of clamping blocks (6), the upper ends of the plurality of clamping blocks (6) are each provided with a mounting hole, and the mounting hole is threadedly connected to the thread groove via a bolt (5).

2. A seat frame skeleton sub-assembly welding auxiliary device according to claim 1, characterized in that: The linkage mechanism comprises a gear (11), the gear (11) being rotatably arranged inside the cavity between the first slide plate (1) and the second slide plate (2) via a rotating shaft, gear rods (10) being arranged on both upper and lower sides of the gear (11), the two gear rods (10) being meshed with the gear (11), and the ends of the two gear rods (10) which are away from each other are fixedly connected to the first slide plate (1) and the second slide plate (2) respectively.

3. The seat frame skeleton sub-assembly welding auxiliary device according to claim 1, characterized in that: The two clamping blocks (6) are each provided with an arc-shaped surface on one side opposite to the other.

4. The seat frame skeleton sub-assembly welding auxiliary device according to claim 1, characterized in that: A limiting block (9) is fixedly provided at the upper end of the first slide plate (1) and the second slide plate (2) at the thread groove, and a limiting groove matching the limiting block (9) is provided at the bottom of the clamping block (6).

5. The seat frame skeleton sub-assembly welding auxiliary device according to claim 1, characterized in that: A support block is fixedly provided at the bottom of the welding platform (4).

6. A seat frame skeleton sub-assembly welding auxiliary device according to claim 5, characterized in that: The plurality of support blocks are all wear-resistant rubber blocks.

Images