Small-sized circuit breaker nail penetrating and centering device
By installing the centering members of the positioning tube seat, positioning clamps and elastic collar on the automatic nailing equipment, the problem of insufficient rivet penetration accuracy is solved, and high-precision production of small circuit breakers products is achieved, and production quality is improved.
Patent Information
- Application Number
- CN202422252606.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-13
AI Technical Summary
The existing automatic nail-piercing equipment lacks an effective centralized guiding role, which makes it difficult to ensure the accuracy of rivets when they penetrate into the rivet holes of small circuit breakers, affecting the quality of product production.
A centering member including a positioning tube seat, a positioning clamp and an elastic collar is designed to move the positioning clamp in the radial hole by moving the positioning clamp in the radial hole, and the elastic collar is used to maintain the tendency of the positioning clamp to move into the axial perforation, ensuring that the rivet is accurately determined and the nailing accuracy is improved.
Through the optimized centering component structure, the nail-through accuracy of rivets is improved, the production quality of small circuit breakers is ensured, and it has good practicality and popularization.
Smart Images
Figure CN223052071U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a nail-piercing centering device for a miniature circuit breaker, belonging to the field of structural design of miniature circuit breaker production equipment. Background Art
[0002] A circuit breaker refers to a switching device that can close, carry, and break the current under normal circuit conditions and can close, carry, and break the current under abnormal circuit conditions within a specified time. In particular, miniature circuit breakers are widely used in household or industrial electricity. When assembling and producing a miniature circuit breaker, it is necessary to insert a rivet into a rivet hole of a housing to play a fixing role. At present, most miniature circuit breaker manufacturers use automatic nail-piercing equipment for automated nail-piercing production in order to improve production capacity. However, the existing automatic nail-piercing equipment still has deficiencies in actual use: specifically, there is a lack of effective centering and guiding effect on the rivet, making it difficult to ensure the accuracy when the rivet is inserted into the rivet hole of the miniature circuit breaker, and the situation of the rivet being inserted obliquely occurs from time to time, thus affecting the production quality of the product. Summary of the Utility Model
[0003] Aiming at the deficiencies pointed out in the background art, the utility model aims to provide a nail-piercing centering device for a miniature circuit breaker with a reasonable optimized structure, which can effectively improve the nail-piercing accuracy of the miniature circuit breaker, and thus is conducive to improving the production quality of the product.
[0004] The technical solution for achieving the purpose of the utility model is as follows:
[0005] A nail-piercing centering device for a miniature circuit breaker includes a centering member. The centering member includes a positioning tube seat, a positioning clamp block, and an elastic collar. The center of the positioning tube seat has an axial through hole along the axis. A plurality of radial holes are evenly distributed in the circumferential direction on the side wall of the positioning tube seat. Each radial hole is inserted with a positioning clamp block, and the positioning clamp block can move radially along the positioning tube seat in the radial hole. The elastic collar is sleeved on the outer periphery of all the positioning clamp blocks, so that each positioning clamp block maintains a tendency to move into the axial through hole. A nail-passing hole channel for the rivet to pass through is formed between the inner ends of all the positioning clamp blocks, and the aperture of the nail-passing hole channel is smaller than the diameter of the rivet under normal conditions.
[0006] In the above technical solution, a limiting stop block that abuts against the outer wall of the positioning tube seat is formed at the outer end of the positioning clamp block.
[0007] In the above technical solution, the inner end face of the limiting stop block that abuts against the outer wall of the positioning tube seat is an arc surface, and the arc surface matches the radian of the outer side surface of the positioning tube seat.
[0008] In the above technical solution, inclined angles are provided at the upper and lower parts of the inner end of each positioning clamp block, so that tapered ports are formed at both the upper and lower ends of the nail-passing hole channel.
[0009] In the above technical solution, a positioning groove for cooperating with the elastic collar is formed on the outer side surface of the positioning clamping block.
[0010] In the above technical solution, the inner end surface of the positioning clamping block is an arc-shaped through groove structure, and the radian of its inner side surface matches the radian of the outer peripheral surface of the rivet.
[0011] In the above technical solution, the positioning pipe seat is a stepped cylindrical structure with an outer diameter at the upper end and an outer diameter at the lower end both smaller than the outer diameter at the middle, and the radial hole is arranged in the middle of the positioning pipe seat;
[0012] The positioning pipe seat is positioned on the mounting bracket. The mounting bracket includes an upper limit plate and a lower limit plate. The centering member is arranged between the upper limit plate and the lower limit plate, and upper positioning jacks and lower positioning jacks for cooperating with the upper end and the lower end of the positioning pipe seat are respectively arranged on the upper limit plate and the lower limit plate.
[0013] In the above technical solution, the elastic collar is a metal spring coil or a rubber ring.
[0014] The utility model has positive effects: The structure design of the small circuit breaker nail-piercing centering device in the utility model is reasonable. It is installed below the material distribution device of the automatic nail-piercing equipment. The rivets conveyed by the material distribution device enter the axial through hole of the positioning pipe seat and are inserted into the nail-passing hole channel under the top pressure of the ejector rod. The rivets are clamped at the axial center position of the axial through hole by the circumferentially evenly arranged positioning clamping blocks, so as to play a role in guiding and centering the rivets. In this way, the nail-piercing accuracy of the rivets is improved, and the production quality of small circuit breaker products is guaranteed. It has good practicability and popularization. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. In the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.
[0016] Figure 1 It is a schematic structural diagram of the small circuit breaker nail-piercing centering device in the utility model;
[0017] Figure 2 For Figure 1 It is a partial cross-sectional view of the small circuit breaker nail-piercing centering device shown;
[0018] Figure 3 It is a three-dimensional structural diagram of the centering member in the utility model;
[0019] Figure 4 For Figure 3Side view of the centered member shown in the figure;
[0020] Figure 5 is a cross-sectional view taken along line A-A in Figure 4 the figure;
[0021] Figure 6 is a cross-sectional view taken along line B-B in Figure 4 the figure;
[0022] Figure 7 is a schematic structural diagram of the positioning socket in the present utility model;
[0023] Figure 8 is a schematic structural diagram of the positioning clamp block in the present utility model.
[0024] The reference numerals shown in the figure are: 1 - mounting bracket; 11 - upper limit plate; 12 - lower limit plate; 13 - upper positioning jack; 14 - lower positioning jack; 2 - positioning socket; 21 - axial through hole; 22 - radial hole; 3 - positioning clamp block; 31 - through-pin hole channel; 32 - limit stop; 33 - inclination angle; 34 - positioning groove; 35 - arc-shaped through groove structure; 4 - elastic collar. Specific embodiments
[0025] Hereinafter, embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and thus are only examples and cannot be used to limit the protection scope of the present invention.
[0026] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present invention belongs.
[0027] The structure of the nail-through centering device for the miniature circuit breaker in this embodiment is as shown in Figures 1 to 8As shown in the figure, it includes a mounting bracket 1 and a centering member mounted on the mounting bracket 1. The centering member includes a positioning socket 2, positioning clamping blocks 3 and an elastic collar 4. The positioning socket 2 is positioned on the mounting bracket 1 and has an axially penetrating axial through-hole 21 at its center. A plurality of radial holes 22 are evenly distributed in the circumferential direction on the side wall of the positioning socket 2. Each radial hole 22 is inserted with a positioning clamping block 3, and the positioning clamping block 3 can move radially along the positioning socket 2 in the radial hole 22. The elastic collar 4 is sleeved on the outer periphery of all the positioning clamping blocks 3, so that each positioning clamping block 3 maintains a tendency to move towards the axial through-hole 21. A nail-passing hole channel 31 for the rivet to pass through is formed between the inner ends of all the positioning clamping blocks 3, and the aperture of the nail-passing hole channel 31 is smaller than the diameter of the rivet under normal conditions. The structural design of the nail-passing centering device in this embodiment is reasonable. When it is installed under the feeding device of the automatic nail-passing equipment, the rivets conveyed by the feeding device enter the axial through-hole 21 of the positioning socket 2 and are inserted into the nail-passing hole channel 31 under the top pressure of the ejector rod. The rivets are clamped at the axial center position of the axial through-hole 21 by the circumferentially evenly distributed positioning clamping blocks 3, so as to play a role in guiding and centering the rivets, thereby improving the nail-passing accuracy of the rivets and ensuring the production quality of small circuit breaker products.
[0028] See Figure 5 As shown in the figure, in this embodiment, a limiting stop block 32 that abuts against the outer wall of the positioning socket 2 is formed at the outer end of the positioning clamping block 3. By the limiting stop block 32 abutting against the outer wall of the positioning socket 2, the depth of the positioning clamping block 3 extending into the radial hole 22 is restricted.
[0029] Furthermore, in this embodiment, in order to improve the tightness of the fit between the positioning clamping block 3 and the positioning socket 2, the inner end face of the limiting stop block 32 that abuts against the outer wall of the positioning socket 2 is an arc surface, and the arc surface matches the radian of the outer side surface of the positioning socket 2.
[0030] In this embodiment, inclined angles 33 are provided at both the upper and lower parts of the inner end of each positioning clamping block 3, so that tapered ports are formed at both the upper and lower ends of the nail-passing hole channel 31. Such a setting has less influence on the resistance when the rivet is inserted into the nail-passing hole channel 31, thus facilitating insertion.
[0031] In order to effectively limit the elastic collar 4 and prevent it from shifting, in this embodiment, a positioning groove 34 that cooperates with the elastic collar 4 is formed on the outer side surface of the positioning clamping block 3.
[0032] As Figure 6 and Figure 8 shown, the inner end face of the positioning clamping block 3 is an arc-shaped through-groove structure 35, and the radian of its inner side surface matches the radian of the outer peripheral surface of the rivet. By setting the arc-shaped through-groove structure 35, a better centering and limiting effect can be achieved on the rivet.
[0033] On the basis of the above-described embodiment solution, in order to facilitate the installation of the centering member, in this embodiment, the positioning socket 2 is designed as a stepped cylindrical structure with an outer diameter at the upper end and an outer diameter at the lower end both smaller than the outer diameter in the middle. Refer to Figure 7 As shown, the radial hole 22 is provided in the middle of the positioning socket 2; the mounting bracket 1 in this embodiment includes an upper limit plate 11 and a lower limit plate 12. The centering member is arranged between the upper limit plate 11 and the lower limit plate 12. The upper limit plate 11 and the lower limit plate 12 can be fixedly connected by fixing components (such as screws). And upper positioning insertion holes 13 and lower positioning insertion holes 14 that cooperate with the upper end and the lower end of the positioning socket 2 are respectively provided on the upper limit plate 11 and the lower limit plate 12. Refer to Figure 1 and Figure 2 As shown, such a setting is beneficial to the installation and positioning of the centering member.
[0034] In this embodiment, the elastic collar 4 can be a metal spring coil or an elastic rubber ring.
[0035] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation manners here. And these obvious changes or modifications derived from the essential spirit of the present invention still fall within the protection scope of the present invention.
Claims
1. A small circuit breaker nailing and centering device, characterized in that: The invention comprises a centering component, wherein the centering component comprises a positioning tube seat (2), a positioning clamping block (3) and an elastic sleeve (4); the center of the positioning tube seat (2) has an axial through hole (21) penetrating along the axial direction; the side circumferential wall of the positioning tube seat (2) is evenly provided with a plurality of radial holes (22) along the circumferential direction; each radial hole (22) is inserted with a positioning clamping block (3), and the positioning clamping block (3) can move radially along the positioning tube seat (2) in the radial hole (22); the elastic sleeve (4) is sleeved on the outer circumference of all the positioning clamping blocks (3) so that each positioning clamping block (3) maintains a tendency to move into the axial through hole (21); a nail passage channel (31) for rivets to pass through is formed between the inner ends of all the positioning clamping blocks (3); and the hole diameter of the nail passage channel (31) is smaller than the diameter of the rivet under normal conditions.
2. The small circuit breaker nail piercing and centering device according to claim 1, characterized in that: The outer end of the positioning clamp (3) is formed with a limit stopper (32) that abuts against the outer wall of the positioning tube seat (2).
3. The small circuit breaker nail piercing and centering device according to claim 2, characterized in that: The inner end surface of the limit stopper (32) that contacts the outer wall of the positioning tube seat (2) is an arc-shaped surface, and the arc-shaped surface matches the curvature of the outer side surface of the positioning tube seat (2).
4. The small circuit breaker nail piercing and centering device according to claim 1, characterized in that: The upper and lower inner ends of each positioning clamp (3) are provided with an inclined angle (33), so that conical ports are formed at the upper and lower ends of the nail passage (31).
5. The small circuit breaker nail piercing and centering device according to claim 1, characterized in that: A positioning groove (34) that cooperates with the elastic sleeve ring (4) is formed on the outer side surface of the positioning clamp block (3).
6. The small circuit breaker nail piercing and centering device according to claim 1, characterized in that: The inner end surface of the positioning clamp (3) is an arc-shaped through-slot structure (35), and the curvature of the inner side surface matches the curvature of the outer peripheral surface of the rivet.
7. The nail-piercing centering device for a miniature circuit breaker according to any one of claims 1 to 6, characterized in that: The positioning tube seat (2) is a stepped cylindrical structure with the outer diameters of the upper end and the lower end being smaller than the outer diameter of the middle portion, and the radial hole (22) is provided in the middle portion of the positioning tube seat (2); The positioning tube seat (2) is positioned on a mounting frame (1), and the mounting frame (1) comprises an upper limit plate (11) and a lower limit plate (12). The centering member is arranged between the upper limit plate (11) and the lower limit plate (12), and the upper limit plate (11) and the lower limit plate (12) are respectively provided with an upper positioning socket (13) and a lower positioning socket (14) which cooperate with the upper end and the lower end of the positioning tube seat (2).
8. The small circuit breaker nail piercing and centering device according to claim 1, characterized in that: The elastic sleeve ring (4) is a metal spring ring or a rubber ring.