Automatic assembly device for headrest steel wire clasp spring

Abstract

This utility model provides an automatic assembly device for headrest wire retaining springs, including a base, a longitudinal adjustment mechanism, an assembly mechanism, and a guide rod. The longitudinal adjustment mechanism includes a guide rail, a servo motor, and a slide. The guide rail is fixedly located at the top center of the base. A limiting plate is provided at the front end of the guide rod to limit the wire retaining spring. By adjusting the assembly mechanism, the clamping plate and the limiting groove can be easily adjusted to the top and bottom of the wire retaining spring. A second electric push rod drives the clamping plates to move closer together, facilitating the clamping of the wire retaining spring through the clamping plate and the limiting groove. It also facilitates the removal and movement of the wire retaining spring from the guide rod, allowing it to move closer to the mounting hole on the seat guide sleeve. The push plate presses the wire retaining spring, causing both ends of the wire retaining spring to move closer together and insert into the mounting hole on the seat guide sleeve, facilitating the assembly of the wire retaining spring. This improves the assembly efficiency of the wire retaining spring and is highly practical.

Description

Technical Field

[0001] This utility model relates to the field of headrest wire spring assembly technology, specifically an automatic assembly device for headrest wire springs. Background Technology

[0002] The headrest is typically attached to the top of the car seat back via a mounting rod at its bottom. The car seat back has a guide sleeve fixed inside, and the mounting rod is inserted into the guide sleeve. A button is installed inside the top of the guide sleeve via a wire clip. The protruding part of the button is engaged in a slot on the mounting rod by the elastic force of the wire clip, which facilitates the fixing of the mounting rod and the headrest. By pulling or pushing the button, the engaging mechanism can be separated from the mounting rod, making it easy to disassemble the headrest.

[0003] However, because the wire snap ring itself has a certain elasticity, tools such as snap ring pliers are needed to squeeze the wire snap ring in order to install both ends of the wire snap ring inside the seat guide sleeve and between the buttons. The operation is unchanged, which makes it inconvenient to automatically assemble the wire snap ring and reduces the installation efficiency of the wire snap ring.

[0004] Therefore, this utility model provides an automatic assembly device for headrest steel wire retaining springs. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide an automatic assembly device for headrest wire retaining springs, thereby solving the problems mentioned in the background section. This invention facilitates the guidance and transport of the wire retaining springs via a guide rod. Furthermore, by adjusting the assembly mechanism, the clamping plate and limiting groove can be easily positioned at the top and bottom of the wire retaining spring, thus clamping and moving it closer to the mounting hole on the seat guide sleeve. The push plate then compresses the wire retaining spring, bringing its two ends closer together and inserting it into the mounting hole on the seat guide sleeve. This facilitates automatic assembly of the wire retaining springs, improving assembly efficiency and demonstrating high practicality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic assembly device for headrest wire clips, comprising a base, a longitudinal adjustment mechanism, an assembly mechanism, and a guide rod. The longitudinal adjustment mechanism includes a guide rail, a servo motor, and a slide block. The guide rail is fixedly positioned at the top center of the base. The slide block is slidably mounted on the top of the guide rail, and a U-shaped seat is fixedly mounted on the top of the slide block. The assembly mechanism includes an installation box, a clamping plate, and a push plate. The installation box is slidably mounted inside the U-shaped seat via a first electric push rod. A groove is symmetrically opened inside one end of the installation box. One end of the clamping plate is symmetrically slidably mounted inside the top and bottom grooves. Limiting grooves are opened on opposite sides of the top and bottom clamping plates. A limiting plate is rotatably mounted on the front end of the guide rod via a torsion spring shaft, and the front end of the guide rod is positioned between the clamping plates.

[0007] Furthermore, a guide groove is provided inside the top end of the guide rail, and a screw is rotatably mounted inside the guide groove. A servo motor is fixedly mounted at the front end of the guide rail, and the output shaft of the servo motor is fixedly connected to the front end of the screw.

[0008] Furthermore, a slider is fixedly provided at the bottom end of the slide block, the slider is slidably installed inside the guide groove, and the slider is screwed onto the screw rod through a screw hole opened inside it.

[0009] Furthermore, the first electric push rod is fixedly installed on the outside of one end of the U-shaped base, the output rod of the first electric push rod is fixedly connected to the mounting box, and fixing holes are opened inside both ends of the base.

[0010] Furthermore, a third electric push rod is fixedly installed inside one end of the mounting box, and the push plate is fixedly mounted on the output rod of the third electric push rod. The push plate is slidably installed inside the mounting box.

[0011] Furthermore, one end of the push plate is provided with an arc-shaped groove, one end of the push plate is disposed between the top and bottom clamping plates, and one end of the push plate is slidably installed inside the limiting groove.

[0012] Furthermore, the wire snap ring is installed inside the limiting groove, with one end of the wire snap ring in close contact with the arc-shaped groove. A second electric push rod is fixedly installed at the top and bottom of one end of the mounting box, corresponding to the position of the clamping plate. The output rod of the second electric push rod is fixedly connected to one end of the clamping plate.

[0013] Furthermore, the rear end of the guide rod is arc-shaped, and a U-shaped bracket is fixedly installed on one side of the guide rod. The U-shaped bracket is located on one side of the wire clip, and fixing holes are symmetrically opened inside the bottom end of the bracket.

[0014] The beneficial effects of this utility model are as follows: The automatic assembly device for headrest wire springs of this utility model facilitates the guidance and conveying of wire springs through a guide rod, and a limiting plate is set at the front end of the guide rod to limit the wire spring. By adjusting the assembly mechanism, the clamping plate and the limiting groove can be easily adjusted to the top and bottom of the wire spring. The clamping plate is driven to move closer together by the second electric push rod, which facilitates the clamping of the wire spring through the clamping plate and the limiting groove. It also facilitates the removal and movement of the wire spring from the guide rod, making it easier to move the wire spring closer to the mounting hole on the seat guide sleeve. The push plate squeezes the wire spring, causing the two ends of the wire spring to move closer together and insert into the mounting hole on the seat guide sleeve, which facilitates the automatic assembly of the wire spring, improves the assembly efficiency of the wire spring, and has high practicality. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the automatic assembly device for headrest steel wire retaining springs of this utility model;

[0016] Figure 2 This is a structural diagram of the longitudinal adjustment mechanism of the automatic assembly device for headrest steel wire retaining springs of this utility model;

[0017] Figure 3 This is a structural diagram of the assembly mechanism of the automatic assembly device for headrest steel wire retaining springs of this utility model;

[0018] Figure 4 This is a diagram showing the assembly mechanism of the automatic assembly device for headrest wire clips of this utility model.

[0019] Figure 5 This is a sectional view of the assembly mechanism of the automatic assembly device for headrest wire clips of this utility model;

[0020] Figure 6 This is a front sectional view of the automatic assembly device for headrest steel wire retaining springs of this utility model;

[0021] Figure 7 This utility model relates to an automatic assembly device for headrest wire clips. Figure 6 Enlarged view of point A in the middle;

[0022] Figure 8 This is a structural diagram of the guide rod and support of the automatic assembly device for headrest steel wire clips of this utility model;

[0023] In the diagram: 1. Base; 2. Guide rail; 3. Servo motor; 4. Fixing hole; 5. Slide; 6. U-shaped seat; 7. First electric push rod; 8. Assembly mechanism; 9. Bracket; 10. Guide rod; 11. Guide groove; 12. Screw; 13. Mounting box; 14. Slide groove; 15. Clamping plate; 16. Second electric push rod; 17. Limiting groove; 18. Push plate; 19. Third electric push rod; 20. Steel wire circlip; 21. Limiting plate. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Please see Figures 1 to 8 This utility model provides a technical solution: an automatic assembly device for headrest wire spring clips, including a base 1, a longitudinal adjustment mechanism, an assembly mechanism 8, and a guide rod 10. The longitudinal adjustment mechanism includes a guide rail 2, a servo motor 3, and a slide block 5. The guide rail 2 is fixedly installed at the top center of the base 1. The slide block 5 is slidably installed on the top of the guide rail 2. A U-shaped seat 6 is fixedly installed on the top of the slide block 5. The assembly mechanism 8 includes a mounting box 13, a clamping plate 15, and a push plate 18. The mounting box 13 is slidably installed inside the U-shaped seat 6 via a first electric push rod 7. A sliding groove 14 is symmetrically opened inside one end of the mounting box 13. One end of the clamping plate 15 is symmetrically slidably installed inside the top and bottom sliding grooves 14. The top and bottom clamping plates 15 are... A limiting groove 17 is provided on one side of the guide rod 10. The front end of the guide rod 10 is rotatably mounted with a limiting plate 21 via a torsion spring shaft. The front end of the guide rod 10 is positioned between the clamping plates 15. The guide rod 10 can guide and limit the wire snap ring 20, allowing the wire snap ring 20 to move closer to and make contact with the limiting plate 21 while containing the guide rod 10. At the same time, the limiting grooves 17 at the top and bottom can be adjusted between the mounting box 13 and the clamping plate 15 to facilitate clamping the wire snap ring 20 through the limiting grooves 17. Furthermore, by adjusting the movement of the assembly mechanism 8, the wire snap ring 20 can be removed from the guide rod 10, facilitating automatic material handling and assembly of the wire snap ring 20. This improves the assembly efficiency of the wire snap ring 20 and enhances its practicality.

[0026] In this embodiment, a guide groove 11 is provided inside the top end of the guide rail 2. A screw 12 is rotatably mounted inside the guide groove 11. A servo motor 3 is fixedly mounted at the front end of the guide rail 2. The output shaft of the servo motor 3 is fixedly connected to the front end of the screw 12. A slider is fixedly provided at the bottom end of the slide block 5. The slider is slidably mounted inside the guide groove 11. The slider is screwed onto the screw 12 through a screw hole opened inside it. The guide groove 11, slider, and screw 12 work together to guide the slide block 5. The servo motor 3 and screw 12 can adjust the longitudinal movement of the slide block 5, which facilitates the subsequent adjustment of the assembly mechanism 8 in the front and back directions.

[0027] In this embodiment, the first electric push rod 7 is fixedly installed on the outer side of one end of the U-shaped base 6. The output rod of the first electric push rod 7 is fixedly connected to the mounting box 13. Fixing holes 4 are opened inside both ends of the base 1. A third electric push rod 19 is fixedly installed inside one end of the mounting box 13. The push plate 18 is fixedly installed on the output rod of the third electric push rod 19. The push plate 18 is slidably installed inside the mounting box 13. An arc-shaped groove is opened at one end of the push plate 18. One end of the push plate 18 is located between the top and bottom clamping plates 15. One end of the push plate 18 is slidably installed inside the limiting groove 17. The wire snap ring 20 is installed inside the limiting groove 17. One end of the wire snap ring 20 is in contact with the arc-shaped groove. One end of the mounting box 13... A second electric push rod 16 is fixedly installed at the top and bottom of the clamping plate 15, corresponding to the position of the clamping plate 15. The output rod of the second electric push rod 16 is fixedly connected to one end of the clamping plate 15. The first electric push rod 7 can drive the mounting box 13 and the clamping plate 15 to move towards the wire snap ring 20, so that the clamping plate 15 moves to the top and bottom of the wire snap ring 20. The second electric push rod 16 can drive the clamping plate 15 to move closer to the wire snap ring 20, and clamp and limit the wire snap ring 20 through the limiting groove 17. The third electric push rod 19 can push the push plate 18 to squeeze the wire snap ring 20, so that the two ends of the wire snap ring 20 move closer to each other under the action of the limiting groove 17, which facilitates the subsequent insertion of the two ends of the wire snap ring 20 into the internal mounting holes of the seat guide sleeve, and facilitates the automatic assembly of the wire snap ring 20.

[0028] In this embodiment, the rear end of the guide rod 10 is arc-shaped, and a U-shaped bracket 9 is fixedly provided on one side of the guide rod 10. The U-shaped bracket 9 is located on one side of the wire snap ring 20. Fixing holes 4 are symmetrically opened inside the bottom end of the bracket 9. The guide rod 10 can guide and transport the wire snap ring 20. The U-shaped bracket 9 makes it convenient to install the guide rod 10 on one side of the assembly mechanism 8, which facilitates the subsequent removal of the wire snap ring 20.

[0029] When using this automatic assembly device for headrest wire snap rings, the base 1 and the U-shaped bracket 9 are fixed by the fixing holes 4 and bolts. The bracket 9 drives the guide rod 10 closer to the assembly mechanism 8. The cross-sectional shape of the guide rod 10 can be set according to the shape of the wire snap ring 20, so that the guide rod 10 can limit and guide the wire snap ring 20. A vibration motor is installed at the upper end of the bracket 9, so that the wire snap rings 20 on the guide rod 10 are concentrated and moved closer to its front end. The frontmost wire snap ring 20 is in contact with the limiting plate 21. A placement bracket can be installed on the front side of the bracket 9 for holding the seat guide sleeve, and the mounting holes on the seat guide sleeve are aligned with the two ends of the wire snap ring 20. The servo motor 3 and its associated circuit drive the screw 12 to rotate inside the guide groove 11. The screw connection between the screw 12 and the slider causes the slide block 5 to move back and forth on the top of the guide rail 2, bringing the assembly mechanism 8 closer to the front end of the guide rod 10. The first electric push rod 7 and its associated circuit push the mounting box 13 to move inside the U-shaped seat 6. Simultaneously, the second electric push rod 16 and its associated circuit drive the clamping plate 15 to slide towards the top and bottom of the slide groove 14, increasing the distance between the two clamping plates 15. The mounting box 13 moves the clamping plate 15 to the top and bottom of the foremost wire clip 20. The rear side of one end of the clamping plate 15 opens... An inclined surface is provided. A second electric push rod 16 and its associated circuitry can move the clamping plates 15 closer together. The inclined surface presses against the rear wire retainer 20, causing it to separate from the frontmost wire retainer 20. The frontmost wire retainer 20 can then enter the limiting groove 17. A servo motor 3, its associated circuitry, screw 12, slider, and guide groove 11 move the slide block 5 forward, removing the wire retainer 20 from the guide rod 10. The two ends of the wire retainer 20 are aligned with the mounting holes on the seat guide sleeve. A third electric push rod 19 and its associated circuitry push the push plate 18, which slides within the limiting groove 17. The wire snap ring 20 is then compressed, causing its two ends to approach each other under the compression of the limiting groove 17 and align with the mounting holes on the seat guide sleeve. Simultaneously, the first electric push rod 7 and its matching circuit push the mounting box 13 and clamping plate 15 closer to the mounting holes on the seat guide sleeve, inserting both ends of the wire snap ring 20 into the mounting holes on the seat guide sleeve. The push plate 18 continues to compress the wire snap ring 20 until it is completely installed on the seat guide sleeve. The clamping plate 15, mounting box 13, and other assembly mechanisms 8 are then reset, and the above operation is repeated. This facilitates the automatic assembly of the wire snap ring 20, improves the assembly efficiency of the wire snap ring 20, and has high practicality.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. The headrest steel wire spring automatic assembly device, comprising a base (1), a longitudinal adjustment mechanism, an assembly mechanism (8) and a material guide rod (10), characterized in that, The longitudinal adjustment mechanism includes a guide rail (2), a servo motor (3), and a slide (5). The guide rail (2) is fixedly installed at the top center of the base (1). The slide (5) is slidably installed on the top of the guide rail (2). A U-shaped seat (6) is fixedly installed on the top of the slide (5). The assembly mechanism (8) includes a mounting box (13), a clamping plate (15), and a push plate (18). The mounting box (13) is slidably installed inside the U-shaped seat (6) by a first electric push rod (7). A sliding groove (14) is symmetrically opened inside one end of the mounting box (13). One end of the clamping plate (15) is symmetrically slidably installed inside the top and bottom sliding grooves (14). A limiting groove (17) is opened on the opposite side of the top and bottom clamping plates (15). A limiting plate (21) is rotatably installed at the front end of the guide rod (10) through a torsion spring shaft. The front end of the guide rod (10) is located between the clamping plates (15).

2. The automatic assembly device for headrest wire retaining springs according to claim 1, characterized in that: The top of the guide rail (2) has a guide groove (11) inside, and a screw (12) is installed inside the guide groove (11) for limiting rotation. A servo motor (3) is fixedly installed at the front end of the guide rail (2), and the output shaft of the servo motor (3) is fixedly connected to the front end of the screw (12).

3. The automatic assembly device for headrest wire retaining springs according to claim 2, characterized in that: The bottom end of the slide block (5) is fixedly provided with a slider, which is slidably installed inside the guide groove (11). The slider is screwed onto the screw rod (12) through a screw hole opened inside it.

4. The automatic assembly device for headrest wire retaining springs according to claim 1, characterized in that: The first electric push rod (7) is fixedly installed on the outside of one end of the U-shaped seat (6). The output rod of the first electric push rod (7) is fixedly connected to the mounting box (13). Fixing holes (4) are opened inside both ends of the base (1).

5. The automatic assembly device for headrest wire retaining springs according to claim 4, characterized in that: A third electric push rod (19) is fixedly installed inside one end of the mounting box (13), and the push plate (18) is fixedly installed on the output rod of the third electric push rod (19). The push plate (18) is slidably installed inside the mounting box (13).

6. The automatic assembly device for headrest wire retaining springs according to claim 5, characterized in that: One end of the push plate (18) is provided with an arc-shaped groove, and one end of the push plate (18) is located between the top and bottom clamping plates (15). One end of the push plate (18) is slidably installed inside the limiting groove (17).

7. The automatic assembly device for headrest wire retaining springs according to claim 6, characterized in that: The wire snap ring (20) is installed inside the limiting groove (17). One end of the wire snap ring (20) is in contact with the arc groove. A second electric push rod (16) is fixedly installed at the top and bottom of one end of the mounting box (13) at the position corresponding to the clamping plate (15). The output rod of the second electric push rod (16) is fixedly connected to one end of the clamping plate (15).

8. The automatic assembly device for headrest wire retaining springs according to claim 1, characterized in that: The rear end of the guide rod (10) is arc-shaped. A U-shaped bracket (9) is fixedly installed on one side of the guide rod (10). The U-shaped bracket (9) is installed on one side of the wire snap ring (20). Fixing holes (4) are symmetrically opened inside the bottom end of the bracket (9).

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