Electric vehicle seat plastic welding machine

Abstract

The utility model discloses an electric vehicle seat plastic welding machine which comprises a welding table and a supporting arm, the top end of the welding table is provided with the supporting arm, the side wall of the supporting arm is provided with an integrated frame, the integrated frame is internally provided with a back plate, one side of the back plate is provided with a servo motor, and the servo motor is connected with the welding table. A short connecting arm is installed at the output end of the servo motor, a long connecting arm is installed on the side wall of the short connecting arm, an upper pin shaft is installed at the end, close to the short connecting arm, of the long connecting arm, the long connecting arm is movably connected with the short connecting arm through the upper pin shaft, and a reciprocating rod is installed at the end, away from the upper pin shaft, of the long connecting arm. A lower pin shaft is installed at the end, close to the long connecting arm, of the reciprocating rod. According to the seat plastic welding device, seat plastic can be conveniently welded in a reciprocating movement mode, the welding position can be conveniently and oppositely adjusted, materials can be conveniently and continuously fed from the two sides, the welding machining continuity is guaranteed, and the welding machining efficiency and flexibility are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding machines, in particular to a plastic welding machine for electric vehicle seats. Background Art

[0002] The plastic welding machine transmits ultrasonic energy to the welding area through the upper weldment. Since the welding area, i.e., the interface between the two welds, has a large acoustic impedance, local high temperature will be generated. Due to the poor thermal conductivity of plastic, it cannot be dissipated in time and gathers in the welding area, causing the contact surfaces of the two plastics to melt rapidly. After a certain pressure is applied, they are fused into one. When the ultrasonic wave stops working, the pressure is allowed to continue for a few seconds to solidify and form a strong molecular chain, thus achieving the purpose of welding. The welding strength can be close to the strength of the raw materials. Traditional electric vehicle seats are mostly welded by a single group of workers in plastic, and the feeding speed is slow. In order to better weld the electric vehicle seats, a plastic welding machine for electric vehicle seats is proposed.

[0003] For example, a plastic welding machine disclosed in the authorization announcement number CN220594116U includes a chassis, a rotating disk is arranged on the chassis, the rotating shaft of the rotating disk is matched and connected with a seat bearing installed on the chassis, and a plurality of locking cavities are opened on the rotating disk for fast locking of the locking pin;

[0004] Although the fixed plate is locked in the locking cavity of the rotating disk by the quick locking pin, when changing different molds, the mold can be separated from the rotating disk by rotating the quick locking pin half a circle, which is convenient and quick to use. The mold cavity carries the welding part, and the upper limit frame limits the cover part welded with the welding part to prevent it from shifting and causing poor welding quality. After the welding is completed, there will be a certain amount of residual temperature above the welding part. The staff can press the toggle plate, and the other end of the toggle plate connected to the mold cavity through the rotating shaft will be tilted up, and the bottom of the welding part will be lifted up, which is convenient for the staff to collect, and effectively improves work efficiency and safety.

[0005] However, the problem that the existing welding machine is not conducive to convenient reciprocating welding of seat plastic and convenient opposite movement adjustment of welding position during use is not solved, and it is not conducive to continuous feeding of materials from both sides, which affects the efficiency and flexibility of the welding process. Utility Model Content

[0006] The purpose of the utility model is to provide an electric vehicle seat plastic welding machine to solve the problem that the welding machine proposed in the above background technology is not convenient for reciprocating welding of seat plastic and convenient opposite movement to adjust the welding position, which is not conducive to continuous loading of materials from both sides, affecting the efficiency and flexibility of the welding process.

[0007] To achieve the above object, the present utility model provides the following technical solutions: An electric vehicle seat plastic welder, comprising a welding table and a support arm. A support arm is installed at the top end of the welding table. An integrated frame is installed on the side wall of the support arm. A back plate is installed inside the integrated frame. A servo motor is installed on one side of the back plate. A short connecting arm is installed at the output end of the servo motor. A long connecting arm is installed on the side wall of the short connecting arm. An upper pin shaft is installed at one end of the long connecting arm close to the short connecting arm, and the long connecting arm is movably connected to the short connecting arm through the upper pin shaft. A reciprocating rod is installed at the end of the long connecting arm away from the upper pin shaft. A lower pin shaft is installed at one end of the reciprocating rod close to the long connecting arm, and the reciprocating rod is movably connected to the long connecting arm through the lower pin shaft. A limit block is installed on the other side of the back plate, and the reciprocating rod is slidably connected to the limit block. A welding plate is installed at the bottom end of the reciprocating rod. Two groups of ultrasonic welding heads are arranged below the welding plate.

[0008] Preferably, sliding rails are symmetrically installed on the inner wall of the welding table. A workbench is arranged inside the welding table, and the workbench is slidably connected to the sliding rails.

[0009] Preferably, an integrated box is installed inside the welding table below the workbench. A rotary motor is installed on the inner wall of the integrated box. A worm is installed at the output end of the rotary motor, and the worm is movably connected to the integrated box.

[0010] Preferably, a hinge shaft is movably installed inside the integrated box on one side of the worm. A worm gear is sleeved on the surface of the hinge shaft, and the worm gear meshes with the worm.

[0011] Preferably, a rocker arm is fixedly installed at the top end of the hinge shaft. A sliding rod is installed at the bottom end of the workbench. A sliding sleeve is sleeved on the surface of the sliding rod, and the sliding sleeve is slidably connected to the sliding rod.

[0012] Preferably, a linkage shaft is installed at one end of the rocker arm close to the sliding sleeve, and the rocker arm is movably connected to the sliding sleeve through the linkage shaft.

[0013] Preferably, an adjustment motor is installed on the inner wall of the welding plate. A bidirectional threaded rod is installed at the output end of the adjustment motor, and the bidirectional threaded rod is movably connected to the welding plate.

[0014] Preferably, two groups of bidirectional threaded sleeves are sleeved on the surface of the bidirectional threaded rod. The bidirectional threaded sleeves are threadedly connected to the bidirectional threaded rod, and the bidirectional threaded sleeves are slidably connected to the welding plate. The bidirectional threaded sleeves are respectively connected to the ultrasonic welding heads.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: This fusion splicer not only realizes convenient reciprocating mobile welding of seat plastics and convenient opposite-direction movement for adjusting the welding position, facilitates continuous feeding of materials from both sides, ensures the continuity of the welding process, but also improves the efficiency and flexibility of the welding process;

[0016] (1) The servo motor drives the short connecting arm to rotate. The short connecting arm drives the long connecting arm to rotate through the upper pin shaft. The long connecting arm drives the reciprocating rod to move inside the limit block through the lower pin shaft. The reciprocating rod drives the welding plate and the ultrasonic welding head to move downward, so that the ultrasonic welding head contacts the surface of the seat. The ultrasonic welding head completes the welding of the left half of the seat. The servo motor continues to work to drive the reciprocating rod to move upward. The reciprocating rod drives the welding plate and the ultrasonic welding head away from the seat plastics. The rotating motor drives the worm to rotate. The worm drives the worm wheel to rotate. The worm wheel drives the hinge shaft to rotate. The hinge shaft drives the rocker arm to rotate. The rocker arm drives the sliding sleeve to slide on the surface of the sliding rod through the linkage shaft. The sliding sleeve drives the workbench to slide on the surface of the slide rail through the sliding rod to move the workbench. Thus, the workbench drives the seat plastics of the right half to move below the welding plate. Then, repeating the above operations can complete the welding work of another group of seat plastics. At this time, the artificial operation continues to place new seat plastics in the vacant part of the other group to facilitate the input of materials from two directions. At the same time, the working frequencies of the servo motor and the rotating motor are consistent, so that the welding plate can contact the new seat plastics every time it drops, facilitating the rapid processing of the seat plastics, realizing convenient reciprocating mobile welding of seat plastics, facilitating continuous feeding of materials from both sides, ensuring the continuity of the welding process, and improving the efficiency of the welding process;

[0017] (2) The adjustment motor drives the bidirectional threaded rod to rotate. The bidirectional threaded rod drives two groups of bidirectional threaded sleeves to move in opposite directions. The bidirectional threaded sleeves drive the ultrasonic welding heads to move in opposite directions, thereby adjusting the distance between the ultrasonic welding heads to adjust and adapt to different welding positions, realizing convenient opposite-direction movement for adjusting the welding position and improving the flexibility of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the three-dimensional structure schematic diagram of the present utility model;

[0019] Figure 2 is the three-dimensional structure schematic diagram of the welding table of the present utility model;

[0020] Figure 3 is the three-dimensional structure schematic diagram of the workbench of the present utility model;

[0021] Figure 4 is the three-dimensional structure schematic diagram of the integrated frame of the present utility model;

[0022] Figure 5 Front elevation sectional structure diagram of the welding plate of the present utility model;

[0023] Figure 6 Front elevation sectional structure diagram of the integrated box of the present utility model.

[0024] In the figure: 1, welding table; 2, support arm; 3, integrated frame; 4, welding plate; 5, workbench; 6, slide rail; 7, integrated box; 8, slide bar; 9, sliding sleeve; 10, linkage shaft; 11, rocker arm; 12, hinge shaft; 13, servo motor; 14, back plate; 15, short connecting arm; 16, upper pin shaft; 17, long connecting arm; 18, lower pin shaft; 19, reciprocating rod; 20, limit block; 21, ultrasonic welding head; 22, bidirectional threaded rod; 23, bidirectional threaded sleeve; 24, adjustment motor; 25, rotation motor; 26, worm gear; 27, worm. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-6 , an embodiment provided by the present utility model: an electric vehicle seat plastic welder, including a welding table 1 and a support arm 2. A support arm 2 is installed at the top of the welding table 1. An integrated frame 3 is installed on the side wall of the support arm 2. A back plate 14 is installed inside the integrated frame 3. A servo motor 13 is installed on one side of the back plate 14. The servo motor 13 plays a role in power driving. The output end of the servo motor 13 is installed with a short connecting arm 15. A long connecting arm 17 is installed on the side wall of the short connecting arm 15. An upper pin shaft 16 is installed at one end of the long connecting arm 17 close to the short connecting arm 15. And the long connecting arm 17 is movably connected to the short connecting arm 15 through the upper pin shaft 16. A reciprocating rod 19 is installed at the end of the long connecting arm 17 away from the upper pin shaft 16. A lower pin shaft 18 is installed at one end of the reciprocating rod 19 close to the long connecting arm 17. And the reciprocating rod 19 is movably connected to the long connecting arm 17 through the lower pin shaft 18. A limit block 20 is installed on the other side of the back plate 14. And the reciprocating rod 19 is slidably connected to the limit block 20. A welding plate 4 is installed at the bottom end of the reciprocating rod 19. Two groups of ultrasonic welding heads 21 are arranged below the welding plate 4;

[0027] First, connect the device to an external controller and external circuit. Place the two groups of electric vehicle seats on the left and right halves of the workbench 5 respectively. Turn on the servo motor 13. The servo motor 13 drives the short connecting arm 15 to rotate. The short connecting arm 15 drives the long connecting arm 17 to rotate through the upper pin shaft 16. The long connecting arm 17 drives the reciprocating rod 19 to move inside the limit block 20 through the lower pin shaft 18. The reciprocating rod 19 drives the welding plate 4 and the ultrasonic welding head 21 to move downward, so that the ultrasonic welding head 21 contacts the surface of the seat. The ultrasonic welding head 21 completes the welding of the seat on the left half. Its working principle is to transmit ultrasonic energy to the welding area through the upper weldment. Since the acoustic resistance is large at the plastic interface of the two welds, local high temperature will be generated, causing the contact surfaces of the two plastics to quickly melt and weld together. After completing the plastic welding of this group of seats, the servo motor 13 continues to work to drive the reciprocating rod 19 to move upward. The reciprocating rod 19 drives the welding plate 4 and the ultrasonic welding head 21 away from the seat plastic. Then turn on the rotary motor 25. The rotary motor 25 drives the worm 27 to rotate. Under the mutual meshing of the worm 27 and the worm gear 26, the worm 27 drives the worm gear 26 to rotate. The worm gear 26 drives the hinge shaft 12 to rotate. The hinge shaft 12 drives the rocker arm 11 to rotate. The rocker arm 11 drives the sliding sleeve 9 to slide on the surface of the sliding rod 8 through the linkage shaft 10. The sliding sleeve 9 drives the workbench 5 to slide on the surface of the slide rail 6 through the sliding rod 8 to move the workbench 5. Thus, the workbench 5 drives the seat plastic on the right half to move below the welding plate 4. Then repeat the above operations to complete the welding work of the seat plastic of the other group. At this time, the new seat plastic is continuously placed manually in the vacant part of the other group to facilitate the input of materials from two directions. At the same time, the working frequencies of the servo motor 13 and the rotary motor 25 are the same, so that the welding plate 4 can contact the new seat plastic every time it drops, facilitating the rapid processing of the seat plastic, realizing the convenient reciprocating mobile welding of the seat plastic, facilitating the continuous feeding of materials from both sides, ensuring the continuity of the welding process, and improving the efficiency of the welding process;

[0028] The inner walls of the welding table 1 are symmetrically equipped with slide rails 6. The workbench 5 is arranged inside the welding table 1 and is slidably connected to the slide rails 6;

[0029] An integrated box 7 is installed inside the welding table 1 below the workbench 5. A rotary motor 25 is installed on the inner wall of the integrated box 7, which plays a role in power driving. The output end of the rotary motor 25 is equipped with a worm 27, and the worm 27 is movably connected to the integrated box 7;

[0030] A hinge shaft 12 is movably installed inside the integrated box 7 on one side of the worm 27. A worm gear 26 is sleeved on the surface of the hinge shaft 12, and the worm gear 26 meshes with the worm 27;

[0031] A rocker arm 11 is fixedly installed at the top end of the hinge shaft 12. A slide bar 8 is installed at the bottom end of the workbench 5. A slide sleeve 9 is sleeved on the surface of the slide bar 8, and the slide sleeve 9 is slidably connected to the slide bar 8. One end of the rocker arm 11 close to the slide sleeve 9 is installed with a linkage shaft 10, and the rocker arm 11 is movably connected to the slide sleeve 9 through the linkage shaft 10;

[0032] An adjustment motor 24 is installed on the inner wall of the welding plate 4. The adjustment motor 24 plays a role of power drive. The output end of the adjustment motor 24 is installed with a bidirectional threaded rod 22, and the bidirectional threaded rod 22 is movably connected to the welding plate 4;

[0033] Two groups of bidirectional threaded sleeves 23 are sleeved on the surface of the bidirectional threaded rod 22. The bidirectional threaded sleeves 23 are threadedly connected to the bidirectional threaded rod 22, and the bidirectional threaded sleeves 23 are slidably connected to the welding plate 4. The bidirectional threaded sleeves 23 are respectively connected to the ultrasonic welding heads 21;

[0034] When it is necessary to adjust the welding distance between the two groups of ultrasonic welding heads 21, turn on the adjustment motor 24. The adjustment motor 24 drives the bidirectional threaded rod 22 to rotate. Under the threaded connection between the bidirectional threaded rod 22 and the bidirectional threaded sleeve 23, and under the sliding fit between the bidirectional threaded sleeve 23 and the welding plate 4, the bidirectional threaded rod 22 drives the two groups of bidirectional threaded sleeves 23 to move towards each other. The bidirectional threaded sleeve 23 drives the ultrasonic welding heads 21 to move towards each other, so as to adjust the distance between the ultrasonic welding heads 21 and adjust to adapt to different welding positions, realizing convenient adjustment of the welding position by moving towards each other, and improving the flexibility of welding.

[0035] Working principle: First, the servo motor 13 drives the short connecting arm 15 to rotate. The short connecting arm 15 drives the long connecting arm 17 to rotate through the upper pin shaft 16. The long connecting arm 17 drives the reciprocating rod 19 to move inside the limit block 20 through the lower pin shaft 18. The reciprocating rod 19 drives the welding plate 4 and the ultrasonic welding head 21 to move downward, so that the ultrasonic welding head 21 contacts the surface of the seat. The ultrasonic welding head 21 completes the welding of the left half of the seat. After completing the plastic welding of this group of seats, the servo motor 13 continues to work to drive the reciprocating rod 19 to move upward. The reciprocating rod 19 drives the welding plate 4 and the ultrasonic welding head 21 away from the seat plastic. The rotary motor 25 drives the worm 27 to rotate. The worm 27 drives the worm gear 26 to rotate. The worm gear 26 drives the hinge shaft 12 to rotate. The hinge shaft 12 drives the rocker arm 11 to rotate. The rocker arm 11 drives the sliding sleeve 9 to slide on the surface of the slide bar 8 through the linkage shaft 10. The sliding sleeve 9 drives the workbench 5 to slide on the surface of the slide rail 6 through the slide bar 8 to move the workbench 5. Thus, the workbench 5 drives the plastic of the right half of the seat to move under the welding plate 4. Then, repeating the above operations can complete the plastic welding work of another group of seats. At this time, the artificial continues to place new seat plastic in the vacant part of the other group to facilitate the input of materials from two directions. At the same time, the working frequencies of the servo motor 13 and the rotary motor 25 are consistent, so that the welding plate 4 can contact the new seat plastic every time it drops, which is convenient for quickly processing the seat plastic. When it is necessary to adjust the welding distance between the two groups of ultrasonic welding heads 21, the adjustment motor 24 drives the bidirectional threaded rod 22 to rotate. The bidirectional threaded rod 22 drives the two groups of bidirectional threaded sleeves 23 to move towards each other. The bidirectional threaded sleeves 23 drive the ultrasonic welding heads 21 to move towards each other, thereby adjusting the distance between the ultrasonic welding heads 21 to adjust and adapt to different welding positions, and thus completing the use work of the electric vehicle seat plastic welder.

Claims

1. An electric vehicle seat plastic welder, comprising a welding table (1) and a support arm (2), characterized in that: At the top of the welding table (1), a support arm (2) is installed. On the side wall of the support arm (2), an integrated frame (3) is installed. Inside the integrated frame (3), a back plate (14) is installed. On one side of the back plate (14), a servo motor (13) is installed. At the output end of the servo motor (13), a short connecting arm (15) is installed. On the side wall of the short connecting arm (15), a long connecting arm (17) is installed. At the end of the long connecting arm (17) close to the short connecting arm (15), an upper pin shaft (16) is installed, and the long connecting arm (17) is movably connected to the short connecting arm (15) through the upper pin shaft (16). At the end of the long connecting arm (17) far from the upper pin shaft (16), a reciprocating rod (19) is installed. At the end of the reciprocating rod (19) close to the long connecting arm (17), a lower pin shaft (18) is installed, and the reciprocating rod (19) is movably connected to the long connecting arm (17) through the lower pin shaft (18). On the other side of the back plate (14), a limit block (20) is installed, and the reciprocating rod (19) is slidably connected to the limit block (20). At the bottom end of the reciprocating rod (19), a welding plate (4) is installed. Below the welding plate (4), two groups of ultrasonic welding heads (21) are arranged.

2. The plastic welding machine for an electric vehicle seat according to claim 1, wherein: On the inner wall of the welding table (1), slide rails (6) are symmetrically installed. Inside the welding table (1), a workbench (5) is arranged, and the workbench (5) is slidably connected to the slide rails (6).

3. The plastic welder for an electric vehicle seat according to claim 2, characterized in that: Inside the welding table (1) below the workbench (5), an integrated box (7) is installed. On the inner wall of the integrated box (7), a rotary motor (25) is installed. At the output end of the rotary motor (25), a worm (27) is installed, and the worm (27) is movably connected to the integrated box (7).

4. The plastic welding machine for an electric vehicle seat according to claim 3, wherein: Inside the integrated box (7) on one side of the worm (27), a hinge shaft (12) is movably installed. On the surface of the hinge shaft (12), a worm gear (26) is sleeved, and the worm gear (26) meshes with the worm (27).

5. The plastic welding machine for an electric vehicle seat according to claim 4, wherein: At the top end of the hinge shaft (12), a rocker arm (11) is fixedly installed. At the bottom end of the workbench (5), a sliding rod (8) is installed. On the surface of the sliding rod (8), a sliding sleeve (9) is sleeved, and the sliding sleeve (9) is slidably connected to the sliding rod (8).

6. The plastic welding machine for an electric vehicle seat according to claim 5, characterized in that: At the end of the rocker arm (11) close to the sliding sleeve (9), a linkage shaft (10) is installed, and the rocker arm (11) is movably connected to the sliding sleeve (9) through the linkage shaft (10).

7. The plastic welding machine for an electric vehicle seat according to claim 1, wherein: On the inner wall of the welding plate (4), an adjustment motor (24) is installed. At the output end of the adjustment motor (24), a bidirectional threaded rod (22) is installed, and the bidirectional threaded rod (22) is movably connected to the welding plate (4).

8. The plastic welding machine for electric vehicle seats according to claim 7, characterized in that: On the surface of the bidirectional threaded rod (22), two groups of bidirectional threaded sleeves (23) are sleeved, and the bidirectional threaded sleeves (23) are threadedly connected to the bidirectional threaded rod (22), and the bidirectional threaded sleeves (23) are slidably connected to the welding plate (4). The bidirectional threaded sleeves (23) are respectively connected to the ultrasonic welding heads (21).

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