Multi-point pin pressing device for coil spring cover of retractor

Abstract

The utility model discloses a coil spring cover multipoint pin pressing device of a retractor, which comprises a placing seat, the bottom of the placing seat is provided with a sliding chute, a sliding rail penetrates through the sliding chute, the sliding rail is arranged on a base, one end of the sliding rail is provided with a first positioning part which can abut against the side wall of the placing seat, and the other end of the sliding rail is provided with a second positioning part which can abut against the side wall of the placing seat. The other end of the sliding rail is provided with a positioning seat capable of abutting against the side wall of the containing seat, the top of the containing seat is provided with a positioning step, a positioning pin is arranged on the positioning step, the end, corresponding to the positioning step, of the containing seat extends to be provided with an abutting inclined face, and side clamping plates are arranged on the two sides, corresponding to the positioning step, of the containing seat. A supporting plate is arranged below the position, corresponding to the abutting inclined face, of the containing base, an ultrasonic riveting head is arranged above the containing base, and the ultrasonic riveting head is connected with a lifting driving assembly. The multi-point pin pressing device is simple in structure and reasonable in design, multi-point pin pressing operation of the coil spring cover can be conveniently achieved, and pin pressing precision and reliability are guaranteed.

Description

Technical Field

[0001] This utility model relates to winding machine processing equipment, specifically to a multi-point pressing pin device for the winding spring cover of a winding machine. Background Technology

[0002] The retractor is a crucial component of the automotive seatbelt structure, primarily used for unwinding and locking the seatbelt to secure the occupant to their seat. During manufacturing, the retractor's spring cover and outer casing are riveted together using a pin. Currently, most pin-pressing devices on the market involve manually placing the retractor onto a pin-pressing seat. However, in actual manufacturing, two pin-pressing points are typically required. This necessitates the use of two sets of traditional pin-pressing mechanisms, each corresponding to a different pin-pressing point. Furthermore, the retractor must be transferred between these two mechanisms during manufacturing, making the process cumbersome. Additionally, traditional pin-pressing mechanisms utilize ordinary riveting heads, which, due to limitations in the retractor's outer casing material and riveting positions, can easily result in incomplete riveting during practical application. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by this utility model is to provide a multi-point pressing pin device for the coil spring cover of a retractor for solving the above-mentioned problems.

[0004] Therefore, this utility model is implemented using the following solution:

[0005] A multi-point pressing pin device for the coil spring cover of a retractor, characterized in that: it includes a placement seat, the bottom of which has a sliding groove, a slide rail passing through the sliding groove, the slide rail being mounted on a base, one end of the slide rail having a first positioning part that abuts against the side wall of the placement seat, the other end of the slide rail having a positioning seat that abuts against the side wall of the placement seat, the top of the placement seat having a positioning step, a positioning pin being mounted on the positioning step, an abutting inclined surface extending from one end of the placement seat corresponding to the positioning step, side clamps being mounted on both sides of the placement seat corresponding to the positioning step, a support plate being mounted below the abutting inclined surface of the placement seat, and an ultrasonic riveting head being mounted above the placement seat, the ultrasonic riveting head being connected to a lifting drive assembly.

[0006] The positioning seat is provided with a positioning screw screw, one end of which can be used to abut against the side wall of the placement seat.

[0007] The support plate is L-shaped and has a strip-shaped groove. Fasteners pass through the strip-shaped groove and are screwed into the threaded holes of the placement seat to fix the support plate on the placement seat.

[0008] The placement seat is provided with a clearance groove at the location corresponding to the abutment inclined surface.

[0009] The placement base is connected to the motion drive component, which can drive the placement base to move back and forth.

[0010] The multi-point pressing pin device for the coil spring cover of the retractor described above, by setting the placement seat as a movable structure and cooperating with the first positioning part and positioning seat to position the moving position of the placement seat, realizes the positioning of the two pressing pin positions of the retractor on the placement seat. Only one pressing pin mechanism is needed to realize the pressing pin operation at multiple points, making the operation simpler. In addition, the use of an ultrasonic riveting head for pressing pins can provide a better riveting effect, thereby ensuring the quality and integrity of the pressing pins. Attached Figure Description

[0011] The present invention includes the following figures:

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 View with the retractor in place. Detailed Implementation

[0014] As shown in the figure, the multi-point pressing pin device for the coil spring cover of the retractor disclosed in this utility model includes a placement seat 9. The bottom of the placement seat 9 has a sliding groove, through which a slide rail 8 passes. The slide rail 8 is mounted on a base 13. One end of the slide rail 8 is provided with a first positioning part 7 that abuts against the side wall of the placement seat 9, and the other end of the slide rail 8 is provided with a positioning seat 14 that abuts against the side wall of the placement seat 9. The top of the placement seat 9 has a positioning step 4, on which a positioning pin 2 is provided. One end of the placement seat 9 corresponding to the positioning step 4 extends abutting slope 6. Side clamps 5 are provided on both sides of the placement seat 9 corresponding to the positioning step 4. A support plate 10 is provided below the placement seat 9 corresponding to the abutting slope 6. The positioning step 4, abutting slope 6, positioning pin 2, and side clamps 5 are used to position the retractor on the placement seat 9. An ultrasonic riveting head 1 is provided above the placement seat 9 and is connected to a lifting drive assembly. The lifting drive assembly can be a cylinder, hydraulic cylinder, or other similar structure.

[0015] Furthermore, a positioning screw 15 is screwed onto the positioning seat 14, and one end of the positioning screw 15 can be used to abut against the side wall of the placement seat 9. With the above structure, the positioning position on one side of the placement seat 9 can be adjusted by controlling the rotation of the positioning screw 15, thereby adapting to the changing spacing between the two pressure pin positions on different retractors.

[0016] Furthermore, the support plate 10 is L-shaped and has a strip-shaped groove 11. Fasteners pass through the strip-shaped groove 11 and are screwed into the threaded holes 12 of the placement seat 9 to fix the support plate 10 to the placement seat 9. The strip-shaped groove 11 structure allows for height adjustment of the connection position of the support plate 10 to accommodate different sizes of retractors. The placement seat 9 has a clearance groove 3 at the position corresponding to the abutment slope 6 to accommodate retractors with protrusions at that position.

[0017] Furthermore, the placement seat 9 is connected to the motion drive component, which can drive the placement seat 9 to reciprocate. This structure enables automated control of the placement seat 9, further saving manpower and improving the user experience. The motion drive component can be implemented using common linear drive mechanisms such as linear motors, rack and pinion structures, or cylinders.

[0018] The working principle of this utility model is as follows: The retractor 16 to be riveted is positioned on the placement seat 9, and then the placement seat 9 is moved so that it abuts against the first positioning part 7 to achieve positioning of the placement seat 9. At this time, one of the riveting positions is located directly below the ultrasonic riveting head 1. Then, the ultrasonic riveting head 1 is lowered to perform one pin pressing operation. After the ultrasonic riveting head 1 rises and resets, the placement seat 9 is moved again so that it abuts against the positioning seat 14 or the positioning screw 15 to achieve secondary positioning of the placement seat 9. At this time, the other riveting position is located directly below the ultrasonic riveting head 1. Then, the ultrasonic riveting head 1 is lowered to perform the other pin pressing operation. Finally, after the operation is completed, the retractor is removed.

Claims

1. A multi-point press pin device for a spring cover of a retractor, characterized in that: The device comprises a placing seat (9), the bottom of which is provided with a sliding groove through which a sliding rail (8) is arranged on a base (13), one end of the sliding rail (8) is provided with a first positioning part (7) which can abut against the side wall of the placing seat (9), the other end of the sliding rail (8) is provided with a positioning seat (14) which can abut against the side wall of the placing seat (9), the top of the placing seat (9) is provided with a positioning step (4) on which a positioning pin (2) is arranged, one end of the placing seat (9) corresponding to the positioning step (4) is provided with an abutting inclined surface (6), the two sides of the placing seat (9) corresponding to the positioning step (4) are provided with side clamping plates (5), the lower part of the placing seat (9) corresponding to the abutting inclined surface (6) is provided with a supporting plate (10), an ultrasonic riveting head (1) is arranged above the placing seat (9), and the ultrasonic riveting head (1) is connected with a lifting driving assembly.

2. The multi-point press pin device for the cover of the spring of the retractor according to claim 1, characterized in that: The positioning seat (14) is provided with a positioning screw rod (15) which is screwed, and one end of the positioning screw rod (15) can abut against the side wall of the placing seat (9).

3. The multi-point press pin device for the cover of the spring of the retractor according to claim 1, characterized in that: The supporting plate (10) is in L shape, the supporting plate (10) is provided with a strip-shaped groove (11), and a fastener is screwed through the strip-shaped groove (11) and the threaded hole (12) of the placing seat (9) to fix the supporting plate (10) on the placing seat (9).

4. The multi-point press pin device for the cover of the spring of the retractor according to claim 1, characterized in that: The placing seat (9) is provided with a gap groove (3) corresponding to the abutting inclined surface (6).

5. The multi-point press pin device for the cover of the spring of the retractor according to claim 1, characterized in that: The placing seat (9) is connected with a moving driving assembly, and the moving driving assembly can drive the placing seat (9) to move back and forth.

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