A riveting device for powder metallurgy safety belt pawl and pin shaft
The automated feeding mechanism using pawls and pins solves the problem of time-consuming and inefficient pin insertion, enabling efficient and automated riveting of seat belt pawls and pins, thus improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING JUNENG POWDER METALLURGY CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-21
AI Technical Summary
The installation process of existing seat belt pawls and pins, especially the pin insertion process, is time-consuming and inefficient, and is mostly done manually, lacking automation and linkage.
An automated feeding mechanism using pawls and pins includes a pawl vibrating feeding plate and a pin vibrating feeding plate. Combined with a riveting mechanism, the pins and pawls are automatically aligned and fixed by a telescopic push rod, forming an automated linkage.
It improved the riveting efficiency of seat belt pawls and pins, realized automated production, simplified the material cutting process, and improved overall processing efficiency.
Smart Images
Figure CN224526451U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of riveting equipment technology, specifically to a riveting device for a powder metallurgy safety belt pawl and pin. Background Technology
[0002] The seat belt pawl is the core safety locking component in a car seat belt retractor. Its function is to lock the seat belt webbing instantly when the vehicle collides or decelerates, preventing the occupants from being thrown forward due to inertia. It is a key component to ensure the safety of occupants.
[0003] Seatbelt pawls are typically high-strength steel stampings or precision castings with multiple sharp and high-hardness teeth and pivot holes. A pin is usually installed in the pivot hole to complete the installation of the seatbelt pawl.
[0004] The most common method for installing seat belt pawls is as follows: First, insert the pin into the pivot hole on the seat belt pawl, then place the whole unit into a riveting machine, and use vertical downward pressure and planetary eccentric force to rivet the pin onto the seat belt pawl.
[0005] Although riveting equipment can effectively complete the engagement of pins and pawls, the time-consuming or least efficient process in the entire pawl riveting process is still the pin insertion process, which is mostly done manually or with other specialized equipment. However, since it is separate from the riveting process, its linkage and efficiency still need to be improved. Utility Model Content
[0006] I. Technical problems to be solved
[0007] This invention addresses the shortcomings of existing technologies by proposing a riveting device for the pawl and pin of a powder metallurgy safety belt. The feeding and fitting of the pawl and pin are achieved by an automated mechanism, which works well with the riveting mechanism to significantly improve processing efficiency.
[0008] II. Specific Technical Solutions
[0009] A riveting device for a pawl and pin in a powder metallurgy safety belt includes a pawl vibrating feeder and a pin vibrating feeder. The pawl vibrating feeder outputs the pawl placed therein in a set direction, and the pin vibrating feeder outputs the pin in a set direction. It also includes a riveting mechanism. A pawl pushing part and a pin pushing part are respectively provided on both sides of the riveting mechanism. The first telescopic end of the pawl pushing part is connected to the output end of the pawl vibrating feeder, and the second telescopic end of the pin pushing part is connected to the output end of the pin vibrating feeder. The pawl pushing part is located below the pin pushing part. A receiving cavity is provided below the riveting mechanism. The receiving cavity is used to receive the pawl pushed by the first telescopic end; the second telescopic end is used to push the pin and align the pin with the pivot hole of the pawl.
[0010] Implementation principle and working principle:
[0011] In this solution, the ratchet pawl can flow out of the output end in a set direction by vibrating the ratchet feeding plate, and the pin can flow out of the output end in a set direction by vibrating the pin feeding plate. The first telescopic end of the ratchet pushing part pushes the ratchet flowing in from the corresponding output end into the receiving cavity. Then, the second telescopic end of the pin pushing part pushes the pin flowing in from the corresponding output end towards the ratchet. Since the ratchet pushing part is located below the pin pushing part, the pin is directly pushed into the pin hole of the ratchet, and then the pin and ratchet can be fixed by riveting. Since the feeding and mating of the ratchet and pin are realized by automated equipment and form a good linkage with the knob mechanism, the riveting efficiency is higher.
[0012] Preferably, both the pawl pusher and the pin pusher are telescopic push rods, which are one or more of pneumatic telescopic pushers, hydraulic telescopic pushers, and electric pushers. The advantage of this preferred embodiment is that cyclic feeding can be achieved through the reciprocating motion of the telescopic pusher, which is simple and convenient.
[0013] Preferably, the output end of the vibrating feeder of the pin shaft is provided with a guide tube, the inner diameter of which corresponds to the pin shaft; the other end of the guide tube corresponds to the initial position of the second telescopic end; a limiting part is provided at the end of the first telescopic end; after the pin shaft slides out of the guide tube, it enters the limiting part, and the limiting part cooperates with the pin shaft; the beneficial effect of this preferred embodiment is that, by setting the limiting part, the pin shaft can always maintain a single direction when being pushed, which is convenient for alignment with the pivot hole on the pawl; the setting of the guide tube enables the pin shaft to be fixed in one direction during installation.
[0014] Preferably, a first limiting guide rail is provided on the outer side of the ratchet vibrating feeder; the other end of the first limiting guide rail corresponds to the starting position of the second telescopic end of the ratchet pushing part; the beneficial effect of this preferred embodiment is that by setting the first limiting guide rail, the ratchet can be kept pushing in the set direction.
[0015] Preferably, the output end of the pawl pusher is provided with a second limiting guide rail, which is used to transport the pawl; the side wall of the first limiting guide rail is provided with a limiting hole; a blocking arm is provided in the limiting hole; a frame is provided on the outside of the pawl pusher, the middle part of the blocking arm is hinged to the frame, and the other end of the blocking arm is hinged to a telescopic rod, the other end of the telescopic rod is hinged to the frame; the beneficial effect of this preferred embodiment is that the setting of the blocking arm makes it easy to control the transport speed of the pawl.
[0016] Preferably, the receiving cavity is provided with a discharge port and a discharge assist part on both sides, and the discharge port and the discharge assist part are arranged opposite to each other; the discharge assist part includes a discharge push rod, and the push rod end of the discharge push rod pushes the riveted pawl to the discharge port; a collection hopper is provided on the outside of the discharge port; the beneficial effect of this preferred embodiment is that, by setting the discharge push rod, the pawl can be quickly pushed from the receiving cavity to the collection hopper, making unloading simple and convenient.
[0017] The beneficial effects of this utility model are as follows:
[0018] In this solution, the loading and mating of the pawl and pin are achieved using automated equipment, and they are well linked with the knob mechanism, resulting in higher riveting efficiency. After riveting is completed, the riveted pawl can be quickly unloaded through the unloading assist unit, which is simple and convenient. The entire process can be easily and conveniently automated, resulting in better production efficiency. Attached Figure Description
[0019] Figure 1 This is a top view schematic diagram of the riveting device for the pawl and pin of the powder metallurgy safety belt of this utility model.
[0020] Figure 2 This is a partial frontal view of the riveting device for the pawl and pin of the powder metallurgy safety belt of this utility model.
[0021] Figure 3 This is a schematic diagram of the cavity structure of the riveting device for the pawl and pin of the powder metallurgy safety belt of this utility model.
[0022] Figure 4 This is a cross-sectional view of the second limiting guide rail of the riveting device for the pawl and pin of the powder metallurgy safety belt of this utility model.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Pawl vibrating feeder, 2. Pin vibrating feeder, 201. Guide tube, 3. Riveting mechanism, 301. Receiving cavity, 302. Discharge port, 303. Unloading assist part, 4. Pawl pushing part, 401. First telescopic end, 402. First limiting guide rail, 403. Second limiting guide rail, 404. Limiting hole, 405. Blocking arm, 406. Frame, 407. Telescopic rod, 5. Pin pushing part, 501. Second telescopic end, 502. Detailed Implementation
[0025] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0026] like Figure 1-4 As shown:
[0027] like Figure 1 A riveting device for a pawl and pin of a powder metallurgy safety belt includes a pawl vibrating feeder 1 installed on the upper right side and a pin vibrating feeder 2 installed on the lower left side. The pawl vibrating feeder 1 outputs the pawl placed therein in a set direction, and the pin vibrating feeder 2 is used to output the pin in the set direction. The above two vibrating feeders are prior art and do not need to be described in detail here. It also includes a riveting mechanism 3, which can be a riveting mechanism or a conventional riveting mechanism.
[0028] like Figure 1-2 In this embodiment, a riveting mechanism is adopted. A pawl pusher 4 and a pin pusher 5 are respectively provided on the left and right sides of the riveting mechanism 3. The pawl pusher 4 is located below the pin pusher 5. In specific implementation, both the pawl pusher 4 and the pin pusher 5 are telescopic push rods. The telescopic push rod is one or more of a pneumatic telescopic pusher, a hydraulic telescopic pusher, and an electric pusher. In this embodiment, a pneumatic pusher is selected. It has a fast response speed, and the reciprocating motion of the telescopic pusher can realize cyclic feeding, resulting in better processing efficiency.
[0029] In practice, the first telescopic end 401 of the pawl pusher 4 is connected to the output end of the pawl vibrating feeder 1. A first limiting guide rail 402 is provided on the outer side of the pawl vibrating feeder 2. After the pawl flows out from the output end of the pawl vibrating feeder 2, it slides along the first limiting guide rail 402. The other end of the first limiting guide rail 402 corresponds to the starting position of the first telescopic end 401 of the pawl pusher 4. That is, by setting the first limiting guide rail 402, the pawl can be transmitted to the first telescopic end of the pawl pusher 4 in a set direction.
[0030] The output end of the pawl pusher 4 is provided with a second limiting guide rail 403, which communicates with the first limiting guide rail 402 to facilitate better transport of the pawl. A receiving cavity 301 is provided below the riveting mechanism 3. The extension and retraction of the first telescopic end 401 pushes the pawl into the receiving cavity 301 through the second limiting guide rail 403. A limiting hole 404 is provided on the side wall of the first limiting guide rail 402. A blocking arm 405 is provided in the limiting hole 404. A frame 406 is provided on the outside of the pawl pusher 4. The middle part of the blocking arm 405 is hinged to the frame 406. The other end of the blocking arm 405 is hinged to a telescopic rod 407. The other end of the telescopic rod 407 is hinged to the frame. By extending and retracting the telescopic rod 407, the blocking arm 405 can be rotated within the first limiting guide rail 402, thereby separating the transported pawl.
[0031] In practice, the second telescopic end 501 of the pin pushing part 5 is connected to the output end of the pin vibrating feed plate 2. Specifically, the output end of the pin vibrating feed plate 2 is provided with a guide tube 201, the inner diameter of which corresponds to the pin. The pin output by the pin vibrating feed plate 2 slides out through the guide tube 201. The other end of the guide tube 201 corresponds to the initial position of the second telescopic end 501. Specifically, a limiting part 502 is provided at the end of the first telescopic end 401. The limiting part 502 can be a sleeve or a hollow tube to prevent the incoming pin from tipping over. After the pin slides out of the guide tube 201, it enters the limiting part 502. By setting the limiting part 502, the pin can always maintain one direction when being pushed, which is convenient for alignment with the pivot hole on the pawl. After alignment, the pin disengages from the bottom of the limiting part 502 and slides into the pivot hole, thereby completing the engagement between the pawl and the pin.
[0032] In specific implementation, a discharge port 302 and a discharge assist unit 303 are respectively provided on the front and rear sides of the receiving cavity 301, and the discharge port 302 and the discharge assist unit 303 are arranged opposite to each other; the discharge assist unit 303 includes a discharge push rod, the push rod end of which pushes the riveted pawl to the discharge port 302; so that the pawl enters the collection hopper provided on the outside from the discharge port 302; through the setting of the discharge push rod, the pawl can be quickly pushed from the receiving cavity 301 into the collection hopper, making unloading simple and convenient.
[0033] The specific implementation principle is as follows:
[0034] The ratchet pawls on the vibrating feed plate 1 flow out of the output end in a set direction, while the pin pawls on the vibrating feed plate 2 flow out of the output end in a set direction. The first telescopic end 401 of the ratchet pusher 4 pushes the ratchets flowing in from the corresponding output end into the receiving cavity 301. Then, the second telescopic end 501 of the pin pusher 5 pushes the pins flowing into the limiting part 502 from the corresponding output end toward the ratchet. Since the ratchet pusher 4 is located below the pin pusher 5, the pins will disengage from the limiting part 502 and enter the pivot hole of the ratchet. The pins and ratchet can then be fixed by the riveting mechanism. Since the feeding and mating of the ratchet and pins are achieved by automated equipment and form a good linkage with the knob mechanism, the riveting efficiency is higher.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims.
Claims
1. A riveting device for a pawl and a pin in a powder metallurgy safety belt, comprising a pawl vibrating feeder (1) and a pin vibrating feeder (2), wherein the pawl vibrating feeder (1) outputs the pawl placed therein in a set direction, and the pin vibrating feeder (2) is used to output the pin in a set direction, characterized in that: It also includes a riveting mechanism (3); a pawl pusher (4) and a pin pusher (5) are respectively provided on both sides of the riveting mechanism (3). The first telescopic end (401) of the pawl pusher (4) is connected to the output end of the pawl vibrating feed plate (1), and the second telescopic end (501) of the pin pusher (5) is connected to the output end of the pin vibrating feed plate (2). The pawl pusher (4) is located below the pin pusher (5). A receiving cavity (301) is provided below the riveting mechanism (3). The receiving cavity (301) is used to receive the pawl pushed by the first telescopic end (401). The second telescopic end (501) is used to push the pin and make the pin correspond to the pivot hole of the pawl.
2. The riveting device for the pawl and pin of a powder metallurgy safety belt according to claim 1, characterized in that: Both the pawl pusher (4) and the pin pusher (5) are telescopic push rods, and the telescopic push rods are one or more of the following: pneumatic telescopic push rods, hydraulic telescopic push rods, and electric push rods.
3. The riveting device for the pawl and pin of a powder metallurgy safety belt according to claim 1, characterized in that: The output end of the pin-shaft vibrating feeder (2) is provided with a guide tube (201), the inner diameter of which corresponds to the pin; the other end of the guide tube (201) corresponds to the initial position of the second telescopic end (501); a limiting part (502) is provided at the end of the first telescopic end (401); after the pin slides out of the guide tube (201), it enters the limiting part (502), and the limiting part (502) cooperates with the pin.
4. The riveting device for the pawl and pin of a powder metallurgy safety belt according to claim 1, characterized in that: The outer side of the ratchet vibrating feeder (1) is provided with a first limiting guide rail (402); the other end of the first limiting guide rail (402) corresponds to the starting position of the second telescopic end (501) of the ratchet pusher (4).
5. The riveting device for the pawl and pin of a powder metallurgy safety belt according to claim 4, characterized in that: The output end of the pawl pusher (4) is provided with a second limiting guide rail (403), which is used to transport the pawl; the side wall of the first limiting guide rail (402) is provided with a limiting hole (404); a blocking arm (405) is provided in the limiting hole (404); a frame (406) is provided on the outside of the pawl pusher (4), the middle part of the blocking arm (405) is hinged to the frame (406), and the other end of the blocking arm (405) is hinged to a telescopic rod (407), the other end of the telescopic rod (407) is hinged to the frame (406).
6. The riveting device for the pawl and pin of a powder metallurgy safety belt according to claim 1, characterized in that: The receiving cavity (301) is provided with a discharge port (302) and a discharge assist part (303) on both sides, and the discharge port (302) and the discharge assist part (303) are arranged opposite to each other; the discharge assist part (303) includes a discharge push rod, and the push rod end of the discharge push rod pushes the riveted pawl to the discharge port (302); a collection hopper is provided on the outside of the discharge port (302).