Bullet train seat backrest supporting and assembling device

Abstract

The utility model relates to the technical field of bullet train seat manufacturing, and discloses a bullet train seat backrest supporting and assembling device which solves the problems that when an existing assembling device works continuously, a framework cannot be automatically locked and unlocked according to requirements, manual intervention operation is needed, and working efficiency is affected. A PLC is fixedly installed on the lower portion of the front side of the work frame, four supporting legs are fixedly installed at the bottom of the work frame and distributed along the four corners of the bottom of the work frame, a conveying belt is installed in the work frame, a supporting frame is fixedly installed on the upper portion of the rear side of the work frame, and a supporting column is fixedly installed at one end of the bottom of the supporting frame. The lower end of the supporting column is fixedly connected with the lower portion of the rear side of the work frame, and an assembly welding manipulator is fixedly installed at one end of the top of the supporting frame. When the assembling device works continuously, the framework can be automatically locked and unlocked according to requirements, manual intervention operation is not needed, and therefore the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of high-speed train seat manufacturing technology, specifically a high-speed train seat back support assembly device. Background Technology

[0002] The seat backrest is a crucial component of high-speed train seats, providing back support and allowing for angle adjustments to suit individual passenger needs. A typical high-speed train seat backrest consists of three parts: the backrest frame, filling material, and fabric. The backrest frame is the supporting structure, usually made of metal materials (such as steel or aluminum alloy) to ensure sufficient strength and durability. The filling material provides comfort; commonly used materials include sponge and memory foam. The fabric covers the filling material, providing aesthetics and protection. The material selection for the backrest frame must meet requirements for strength and lightweighting. The choice of filling material affects passenger comfort; high-quality filling materials provide better support and a snug fit. The fabric material must be wear-resistant and easy to clean to adapt to the high-speed train operating environment. The high-speed train seat backrest support assembly device is responsible for assembling and securing the seat backrest frame. Existing assembly devices, during continuous operation, cannot automatically lock and unlock the frame as needed, requiring manual intervention and impacting work efficiency. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a high-speed train seat back support assembly device, which effectively solves the problem that the existing assembly device cannot automatically lock and unlock the frame according to the needs during continuous operation, resulting in the need for manual intervention and affecting work efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-speed train seat back support assembly device, comprising a frame, a PLC programmable logic controller fixedly installed on the lower front side of the frame, four support legs fixedly installed at the bottom of the frame, the four support legs being distributed along the four corners of the bottom of the frame, a conveyor belt installed inside the frame, a support frame fixedly installed on the upper rear side of the frame, a support column fixedly installed at one end of the bottom of the support frame, the lower end of the support column being fixedly connected to the lower rear side of the frame, and an assembly and welding robot fixedly installed at one end of the top of the support frame, the assembly and welding robot being connected to the PLC programmable logic controller via a flexible wire. The controller is electrically connected. There are two placement platforms at both ends above the conveyor belt. The bottom of each placement platform is fixedly installed with a connector. Both placement platforms are fixedly connected to the conveyor belt through the connector. The number of placement platforms can be increased according to needs. A backrest frame is placed in the middle of each placement platform. There are backrest frame beams at both ends of each backrest frame. Four limit blocks for limiting the backrest frame are fixedly installed at the bottom of each placement platform. There are pressure plates for positioning at both ends of each placement platform. There are elastic locking components at both ends of each placement platform. The elastic locking components are connected to the four pressure plates.

[0005] Preferably, the elastic locking assembly includes four limiting sleeves, which are respectively fixedly installed at both ends of the two placement platforms. Each of the four limiting sleeves has a rectangular groove inside, and a limiting rod is movably inserted into each of the four rectangular grooves. A baffle is fixedly installed at one end of each of the four limiting sleeves. The ends of the four limiting rods near the backrest frame are respectively fixedly connected to four pressing plates. A pushing plate is fixedly installed at the ends of the four limiting rods away from the backrest frame. A contact head is fixedly installed on one side of each pushing plate. A return spring is sleeved on the surface of each of the four limiting rods, and the two ends of each of the four return springs are respectively fixedly connected to the pushing plate and the baffle.

[0006] Preferably, limit grooves are provided at the four corners of the bottom of the two placement platforms, and limit sliders are fixedly installed at both ends of the bottom of the four clamping plates, with the limit sliders slidably installed in the corresponding limit grooves.

[0007] Preferably, transmission bars are fixedly installed on both sides of the top of the frame, and the sides of the two transmission bars that are close to each other are respectively in close contact with the four contact heads. Both transmission bars are strips that protrude from the middle of the side that is close to each other.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, the operator places the backrest frame and backrest frame beam on the placement platform, and then starts the conveyor belt to move the placement platform. When the placement platform moves, the two transmission bars will push the contact head. When the contact head is pushed, the pushing plate will drive the limiting slide rod to move inward along the inside of the limiting slide sleeve, and at the same time, the return spring will be squeezed. When the limiting slide rod moves inward, it will drive the pressing plate to move inward. When the pressing plate moves, it will drive the limiting slider to slide inside the limiting slide groove, which increases the stability of the pressing plate when it moves.

[0009] When the clamping plate moves inward, it will press the two backrest frame beams against the two ends of the backrest frame for positioning. When the placement platform moves to the middle, the conveyor belt stops moving. The assembly and welding robot controlled by the PLC programmable logic controller will weld and assemble the two backrest frame beams and the backrest frame. After welding, the conveyor belt will drive the placement platform to the other end of the workpiece. Under the push of the return spring, the clamping plate will move away from the backrest frame beams and release the clamping lock. This allows the assembly device to automatically lock and unlock the frame as needed during continuous operation without manual intervention, thereby improving work efficiency. Attached Figure Description

[0010] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0011] In the attached diagram:

[0012] Figure 1 This is a schematic diagram of the structure of the train seat back support assembly device of this utility model. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the structure of the train seat back support assembly device of this utility model. Figure 2 ;

[0014] Figure 3 This is a schematic diagram of the structure of the train seat back support assembly device of this utility model. Figure 3 ;

[0015] Figure 4 This is a schematic diagram of the structure of the train seat back support assembly device of this utility model. Figure 4 ;

[0016] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the central placement platform;

[0017] In the diagram: 1. Workbench; 2. PLC (Programmable Logic Controller); 3. Support leg; 4. Conveyor belt; 5. Support frame; 6. Support column; 7. Assembly and welding robot; 8. Connector; 9. Placement table; 10. Backrest frame; 11. Backrest frame beam; 12. Limit block; 13. Pressure plate; 14. Limit slider; 15. Limit groove; 16. Limit sleeve; 17. Baffle; 18. Push plate; 19. Contact head; 20. Return spring; 21. Limit rod; 22. Transmission bar. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Depend on Figures 1 to 5 The present invention includes a work frame 1, a PLC programmable logic controller 2 fixedly installed on the lower front side of the work frame 1, four support legs 3 fixedly installed on the bottom of the work frame 1, the four support legs 3 being distributed along the four corners of the bottom of the work frame 1, a conveyor belt 4 installed inside the work frame 1, a support frame 5 fixedly installed on the upper rear side of the work frame 1, a support column 6 fixedly installed at one end of the bottom of the support frame 5, the lower end of the support column 6 being fixedly connected to the lower rear side of the work frame 1, and an assembly and welding robot 7 fixedly installed at one end of the top of the support frame 5, the assembly and welding robot 7 being electrically connected to the PLC programmable logic controller 2 via a flexible wire;

[0020] Both ends of the conveyor belt 4 are provided with a placement platform 9. The bottom of each placement platform 9 is fixedly installed with a connector 8. Both placement platforms 9 are fixedly connected to the conveyor belt 4 through the connector 8. The number of placement platforms 9 can be increased according to the needs. The middle of each placement platform 9 is provided with a backrest frame 10. Both ends of each backrest frame 10 are provided with a backrest frame beam 11. The bottom of each placement platform 9 is fixedly installed with four limiting blocks 12 for limiting the backrest frame 10. Both ends of each placement platform 9 are provided with a pressure plate 13 for positioning. Both ends of each placement platform 9 are provided with an elastic locking component, which is connected to the four pressure plates 13.

[0021] In use, the operator places the backrest frame 10 and backrest frame beams 11 on the placement platform 9, and then starts the conveyor belt 4 to move the placement platform 9. When the placement platform 9 moves, the elastic locking component moves the pressure plate 13 inward. When the pressure plate 13 moves inward, it will press the two backrest frame beams 11 against the two ends of the backrest frame 10 for positioning. When the placement platform 9 moves to the middle, the conveyor belt 4 stops moving. The PLC programmable logic controller 2 controls the assembly welding robot 7 to weld the two backrest frame beams 11 and the backrest frame 10. After the welding is completed, the conveyor belt 4 will move the placement platform 9 to the other end of the workbench 1. Under the elastic force of the elastic locking component, the pressure plate 13 will move away from the backrest frame beams 11 and release the pressure lock. This allows the assembly device to automatically lock and unlock the frame as needed during continuous operation without manual intervention, thereby improving work efficiency.

[0022] The elastic locking assembly includes four limiting sleeves 16, which are fixedly installed at both ends of the two placement platforms 9. Each of the four limiting sleeves 16 has a rectangular groove inside, and each of the four rectangular grooves has a limiting rod 21 that is movably inserted into it. Each of the four limiting sleeves 16 has a baffle plate 17 fixedly installed at one end. The ends of the four limiting rods 21 that are close to the backrest frame 10 are fixedly connected to four pressing plates 13. Each of the four limiting rods 21 that are away from the backrest frame 10 has a pushing plate 18 fixedly installed at one end. Each of the pushing plates 18 has a contact head 19 fixedly installed on one side. Each of the four limiting rods 21 has a return spring 20 sleeved on its surface. Both ends of the four return springs 20 are fixedly connected to the pushing plate 18 and the baffle plate 17, respectively.

[0023] Limiting grooves 15 are provided at the four corners of the bottom of the two placement platforms 9. Limiting sliders 14 are fixedly installed at both ends of the bottom of the four clamping plates 13. The limiting sliders 14 are slidably installed in the corresponding limiting grooves 15. Transmission bars 22 are fixedly installed on both sides of the top of the work frame 1. The side of the two transmission bars 22 that are close to each other is respectively close to the four contact heads 19. The two transmission bars 22 are strips that protrude from the middle of the side that is close to each other.

[0024] When the placement platform 9 moves, the two transmission bars 22 push the contact head 19. When the contact head 19 is pushed, the pushing plate 18 drives the limiting slide bar 21 to move inward along the inside of the limiting slide sleeve 16, and at the same time squeezes the return spring 20. When the limiting slide bar 21 moves inward, it drives the pressing plate 13 to move inward. When the pressing plate 13 moves, it drives the limiting slider 14 to slide inside the limiting slide groove 15, which increases the stability of the pressing plate 13 when it moves. When the pressing plate 13 moves inward, it will press the two backrest frame beams 11 against the two ends of the backrest frame frame 10 for positioning.

[0025] After welding is completed, the conveyor belt 4 drives the placement table 9 to continue moving to the other end of the work stand 1, thereby pushing the pressure plate 13 away from the backrest frame beam 11 under the elastic force of the return spring 20, thus releasing the pressure lock.

Claims

1. A motor train seat back support assembly device comprising a frame (1), characterized in that: The lower part of the front side of the frame (1) is fixedly provided with a PLC programmable logic controller (2), the bottom of the frame (1) is fixedly provided with four supporting legs (3), the four supporting legs (3) are distributed along the four corners of the bottom of the frame (1), the inside of the frame (1) is provided with a conveying belt (4), the upper part of the rear side of the frame (1) is fixedly provided with a supporting frame (5), one end of the bottom of the supporting frame (5) is fixedly provided with a supporting column (6), the lower end of the supporting column (6) is fixedly connected with the lower part of the rear side of the frame (1), one end of the top of the supporting frame (5) is fixedly provided with an assembling and welding mechanical arm (7), the assembling and welding mechanical arm (7) is electrically connected with the PLC programmable logic controller (2) through a flexible line, both ends of the upper part of the conveying belt (4) are provided with placing tables (9), the bottom of each of the two placing tables (9) is fixedly provided with a connecting piece (8), each of the two placing tables (9) is fixedly connected with the conveying belt (4) through the connecting piece (8), the number of the placing tables (9) can be increased according to requirements, the middle part of the inside of each of the two placing tables (9) is placed with a backrest framework frame (10), both ends of each of the two backrest framework frames (10) are provided with backrest framework beams (11), the inner bottom of each of the two placing tables (9) is respectively fixedly provided with four limiting blocks (12) for limiting the backrest framework frame (10), both ends of the inside of each of the two placing tables (9) are provided with pressing plates (13) for positioning, both ends of each of the two placing tables (9) are provided with elastic locking assemblies, and the elastic locking assemblies are connected with the four pressing plates (13).

2. The supporting assembly of a train seat backrest according to claim 1, characterized in that: The elastic locking assembly comprises four limiting sliding sleeves (16), the four limiting sliding sleeves (16) are respectively fixedly provided at both ends of the two placing tables (9), the inside of each of the four limiting sliding sleeves (16) is provided with a rectangular groove, the inside of each of the four rectangular grooves is movably inserted with a limiting sliding rod (21), one end of each of the four limiting sliding sleeves (16) is fixedly provided with a baffle disc (17), one end of each of the four limiting sliding rods (21) close to the backrest framework frame (10) is fixedly connected with the four pressing plates (13), one end of each of the four limiting sliding rods (21) away from the backrest framework frame (10) is fixedly provided with a pushing disc (18), one side of each of the pushing discs (18) is fixedly provided with a contact head (19), the surface of each of the four limiting sliding rods (21) is sleeved with a reset spring (20), and both ends of each of the four reset springs (20) are respectively fixedly connected with the pushing disc (18) and the baffle disc (17).

3. The supporting assembly of a train seat backrest according to claim 2, characterized in that: The four corners of the inner bottom of each of the two placing tables (9) are provided with limiting sliding grooves (15), the bottom of each of the four pressing plates (13) is fixedly provided with a limiting sliding block (14), and each of the limiting sliding blocks (14) is slidingly installed in the corresponding limiting sliding groove (15).

4. The supporting assembly of a train seat backrest according to claim 1 or 3, characterized in that: The top of the frame (1) is fixedly provided with a transmission bar (22) on each side, and each of the two transmission bars (22) is tightly attached to each of the four contact heads (19) on the side close to each other, and each of the two transmission bars (22) is a bar-shaped protrusion on the side close to each other.

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