A locking nut assembly device
By designing automated assembly equipment and pre-assembled components, the problems of low efficiency and unstable quality in the manufacturing process of all-metal lock nuts have been solved, enabling efficient and stable production of lock nuts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG FULE HARDWARE TECHNOLOGY CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-30
AI Technical Summary
The existing manufacturing process for all-metal lock nuts relies on manual operation, resulting in low assembly efficiency and difficulty in guaranteeing product quality.
An automated assembly equipment consisting of a nut vibratory plate, conveyor belt, rotating plate, and stamping mechanism, combined with pre-assembled components, enables the automated assembly of locking plates. Through the cooperation of electromagnet adsorption and reciprocating cylinder push rod, the locking plates are accurately placed into the nuts, and the nuts are stably conveyed and collected through anti-detachment plates and guide plates.
This improves the assembly efficiency of locking nuts, reduces reliance on manual labor, and ensures the consistency and stability of product quality.
Smart Images

Figure CN224424869U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of nut assembly equipment, and more particularly to a locking nut assembly equipment. Background Technology
[0002] Lock nuts are nuts designed to prevent loosening, including nylon insert lock nuts and all-metal lock nuts.
[0003] All-metal nuts generally consist of a nut body and a locking ring, which is riveted to the nut surface to achieve a unified design. During use, the locking ring undergoes elastic deformation to grip the bolt, creating high friction in a metal-to-metal contact, thus effectively preventing loosening.
[0004] In existing technologies, the manufacturing process of all-metal nuts generally involves manually inserting a locking ring into the nut body, followed by stamping using a stamping machine. This process has the following problems: 1. The overall assembly efficiency of the nut is greatly affected by manual labor, making it difficult to meet production demands in mass production. 2. Assembly accuracy is greatly affected by the worker's skill level, making it difficult to guarantee product quality. Utility Model Content
[0005] To improve assembly efficiency, this application provides a locking nut assembly device.
[0006] The locking nut assembly device provided in this application adopts the following technical solution:
[0007] A conveying assembly, comprising a nut vibratory plate and a conveyor belt, wherein the top of the nut vibratory plate has an opening for inserting one end of the conveyor belt;
[0008] A stamping assembly, comprising a machine base, a rotating disk rotatably connected to the top of the machine base, and a stamping mechanism fixedly connected to the top of the machine base and facing the rotating disk. The stamping mechanism comprises a fixed base fixedly connected to the top of the machine base, eccentric plates rotatably connected to both sides of the fixed base, a rotating shaft fixedly connected to the eccentric plates, a connecting rod rotatably connected to the rotating shaft, and a stamping head rotatably connected to the connecting rod.
[0009] The pre-assembled assembly includes a conveying groove for conveying a locking plate, a reciprocating cylinder fixedly connected to the top wall of the conveying groove, and an electromagnet fixedly connected to the end of the push rod of the reciprocating cylinder. The conveying groove is fixedly connected above the nut conveyor belt, and the conveying groove has a positioning hole for the locking plate to pass through.
[0010] By adopting the above technical solution, the electromagnet becomes magnetic after being energized, which can attract the locking plate. The cylinder push rod pushes the washer down, thereby placing the washer into the nut, realizing the automated assembly of the washer.
[0011] Optionally, the rotating disk is provided with a plurality of positioning grooves at equal intervals around its axis for placing nuts, and the positioning grooves extend to the side wall of the rotating disk.
[0012] By adopting the above technical solution, the nut conveyor belt can accurately transport the nuts into the positioning groove. The rotating disc rotates around the axis, so that the nuts are evenly arranged close to the edge of the positioning groove, which facilitates stamping.
[0013] Optionally, the bottom of the conveying groove near the rotating disk is a positioning seat, and the positioning hole passes through the positioning seat and is directly opposite the positioning groove.
[0014] By adopting the above technical solution, the positioning hole is inserted into the positioning seat to form a channel for the locking plate to fall, ensuring that the locking plate can accurately fall into the nut.
[0015] Optionally, the inner walls of the opposite sides of the positioning hole are provided with receiving grooves, the inner walls of the receiving grooves are slidably connected with a stop block, and a spring is provided in the receiving groove, with one end of the spring abutting against the stop block and the other end abutting against the inner wall of the receiving groove.
[0016] By adopting the above technical solution, after the gasket slide conveys the gasket to the positioning hole, the stop block can prevent the gasket from falling directly, the spring can make the stop blocks on both sides always abut, and when the push rod is pressed down, the spring contracts, causing the stop blocks to move to both sides, thus facilitating the passage of the push rod.
[0017] Optionally, the top of the stop is provided with a guide surface.
[0018] By adopting the above technical solution, when the push rod is pressed down, the guide surface can guide the edge of the locking plate to press down along the guide surface, thereby pushing the stop block open and making it easier for the push rod to push the locking plate down.
[0019] Optionally, the distance from the top of the stop block to the bottom wall of the conveying trough is less than the thickness of the locking plate.
[0020] By adopting the above technical solution, the locking piece located in the positioning hole will be higher than the bottom wall of the conveying trough. During the continuous conveying of the locking piece by the conveying trough, adjacent locking pieces can abut against each other, so that the locking pieces will not stack in the positioning hole.
[0021] Optionally, a discharge chute is connected to the top of the machine on the side away from the conveying chute.
[0022] By adopting the above technical solution, the discharge chute can easily collect nuts, allowing the nuts to slide along the discharge chute to the designated storage position.
[0023] Optionally, a guide plate is fixedly connected to the top of the machine base, the bottom wall of the guide plate is in contact with the top wall of the rotating disk, and the guide plate is located on the side of the rotating disk away from the conveying trough.
[0024] By adopting the above technical solution, after stamping, the rotating disk rotates, allowing the stamped nut in the positioning groove to abut against the guide plate, thereby sliding out of the positioning groove along the side wall of the guide plate without the need for manual removal of the nut.
[0025] Optionally, an anti-detachment plate is fixedly connected to the top of the machine base and abuts against the outer wall of the rotating disk. The anti-detachment plate is located on the side of the rotating disk away from the guide plate.
[0026] By adopting the above technical solution, the nuts that have not yet been stamped will not fall out of the positioning groove when the rotating disk is rotating, thus ensuring the stability of the stamping process.
[0027] In summary, this application has the following beneficial effects:
[0028] 1. By setting pre-assembled components, automated assembly can be achieved, reducing reliance on manual labor and improving assembly efficiency.
[0029] 2. By setting an anti-detachment plate, it is ensured that the unpressed nuts will not come out of the positioning groove during the rotation of the rotating disc, thus ensuring that the nuts are pressed stably. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the structure of the locking nut assembly device according to an embodiment of this application;
[0031] Figure 2 This is a schematic diagram of the structure of the pre-installed component according to an embodiment of this application;
[0032] Figure 3 This is a schematic diagram of the structure of the top of the machine tool according to an embodiment of this application;
[0033] Figure 4 This is a cross-sectional view of the conveying trough according to an embodiment of this application.
[0034] Explanation of reference numerals in the attached drawings: 1. Conveying assembly; 11. Nut vibratory plate; 12. Conveyor belt; 2. Stamping assembly; 21. Machine base; 22. Rotary disc; 221. Positioning groove; 23. Stamping mechanism; 231. Fixed seat; 232. Eccentric plate; 233. Rotating shaft; 234. Connecting rod; 235. Stamping head; 3. Pre-assembly assembly; 31. Conveying trough; 311. Positioning hole; 312. Positioning seat; 313. Receiving groove; 314. Stop block; 315. Spring; 316. Guide surface; 32. Reciprocating cylinder; 33. Electromagnet; 4. Discharge chute; 5. Guide plate; 6. Anti-detachment plate. Detailed Implementation
[0035] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0036] This application discloses a locking nut assembly device. (Refer to...) Figure 1 , Figure 2 The locking nut assembly equipment includes a conveying assembly 1 and a stamping assembly 2. The conveying assembly 1 includes a nut vibratory plate 11 and a conveyor belt 12. The stamping assembly 2 includes a machine base 21, a rotating disk 22 rotatably connected to the top of the machine base 21, and a stamping mechanism 23 fixedly connected to the top of the machine base 21 and directly opposite the rotating disk 22. The nut vibratory plate 11 has an opening at its top for one end of the conveyor belt 12 to be inserted. The other end of the conveyor belt 12 is placed on the top of the machine base 21 and abuts against the rotating disk 22. The rotating disk 22 has positioning grooves 221 at equal intervals around its axis for placing nuts. The positioning grooves 221 extend to the side wall of the rotating disk 22. In use, the vibratory plate sorts the nuts and conveys them to the conveyor belt 12. The conveyor belt 12 then conveys the nuts into the rotating disk 22. The rotating disk 22 rotates and moves the nuts below the stamping mechanism 23, thereby completing the stamping operation.
[0037] Reference Figure 1 , Figure 2 The stamping mechanism 23 includes a fixed base 231 fixedly connected to the top of the machine base 21, an eccentric plate 232 rotatably connected to the inner walls of both sides of the fixed base 231, a rotating shaft 233 fixedly connected to one end of the eccentric plate 232, a connecting rod 234 rotatably connected to the rotating shaft 233, and a stamping head 235 rotatably connected to the connecting rod 234. The rotation of the eccentric plate 232 causes the rotating shaft 233 to drive the connecting rod 234 to move up and down, thereby driving the stamping head 235 to reciprocate. The stamping head 235 then presses down to stamp the nut.
[0038] Reference Figure 2 , Figure 3 The top of the conveyor belt 12 is provided with a pre-installed component 3. The pre-installed component 3 includes a conveying groove 31 for conveying locking plates, a reciprocating cylinder 32 fixedly connected to the top wall of the conveying groove 31, and an electromagnet 33 fixedly connected to the end of the push rod of the reciprocating cylinder 32. The conveying groove 31 is fixedly connected above the conveyor belt 12. The bottom of the conveying groove 31 near the rotating disk 22 is a positioning seat 312. The conveying groove 31 near the rotating disk 22 is provided with a positioning hole 311, which is directly opposite the positioning groove 221.
[0039] When the locking plate needs to be placed into the nut, the conveying groove 31 conveys the locking plate into the positioning hole 311. The reciprocating cylinder 32 and the electromagnet 33 are started. The reciprocating cylinder 32 can drive the locking plate to fall and be stably placed in the nut. The electromagnet 33 can effectively attract the locking plate, thereby ensuring that the locking plate will not tilt during the falling process, improving the accuracy of assembly and ensuring product quality.
[0040] Reference Figure 2 , Figure 3 and Figure 4The positioning hole 311 has receiving grooves 313 on its inner walls on both sides. A stop block 314 is slidably connected to the inner wall of the receiving groove 313. A spring 315 is installed between the stop block 314 and the inner wall of the receiving groove 313. One end of the spring 315 abuts against the stop block 314, and the other end abuts against the inner wall of the receiving groove 313. The transport groove conveys the locking piece to the positioning hole 311. The stop block 314 effectively prevents the locking piece from falling naturally within the positioning hole 311, and the spring 315 ensures that the stop blocks 314 on both sides remain in contact. When the reciprocating cylinder 32 pushes the push rod downwards, the spring 315 contracts under the pressure of the push rod, causing the stop blocks 314 to move to both sides, thus facilitating the push rod to push the locking piece downwards.
[0041] Reference Figure 2 , Figure 3 and Figure 4 The top of the stop block 314 is provided with a guide surface 316, and the distance from the top of the stop block 314 to the bottom wall of the gasket groove is less than the thickness of the locking plate. When the reciprocating cylinder 32 is running, the guide surface 316 can effectively guide the locking plate to move along the guide surface 316, so that the push rod of the reciprocating cylinder 32 can drive the locking plate to push the stop block 314 open, thereby facilitating the locking plate to fall and assemble with the nut.
[0042] Reference Figure 1 , Figure 2 A guide plate 5 is fixedly connected to the top of the machine base 21. The bottom wall of the guide plate 5 is in contact with the top wall of the rotating disk 22. The guide plate 5 is located on the side of the rotating disk 22 near the stamping mechanism 23. After stamping is completed, the rotating disk 22 continues to rotate, so that the top of the nut inside the rotating disk 22 contacts the guide plate 5, thereby disengaging from the rotating disk 22 along the side wall of the guide plate 5, realizing the automatic disassembly of the nut.
[0043] Reference Figure 1 , Figure 2 The top of the machine base 21 is connected to a discharge chute 4 on the side away from the conveying chute 31, and the inlet of the discharge chute 4 is directly opposite the rotating disk 22. Nuts pushed out by the guide plate 5 can slide down into the discharge chute 4, so that the nuts can be automatically collected.
[0044] Reference Figure 1 , Figure 2 An arc-shaped anti-detachment plate 6 is fixedly connected to the top of the machine base 21. The anti-detachment plate 6 is located on the side of the rotating disk 22 away from the guide plate 5, and the inner wall of the anti-detachment plate 6 abuts against the side wall of the rotating disk 22. During the rotation of the rotating disk 22, the anti-detachment plate 6 can effectively prevent the unpressed nuts inside the rotating disk 22 from coming out, thereby ensuring the stability of the pressing process.
[0045] The implementation principle of a locking nut assembly device according to an embodiment of this application is as follows: When the locking nuts are assembled, the nut vibrating plate 11 sorts the nuts and conveys them to the rotating plate 22 through the conveyor belt 12. The reciprocating cylinder 32 is started to press the locking plate into the nut. The rotating plate 22 rotates and conveys the nut to the bottom of the stamping mechanism 23. The stamping head 235 presses down to fix the nut and the locking plate, thereby completing the assembly.
[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A locking nut assembly device, characterized in that, include: The conveying assembly (1) includes a nut vibrating plate (11) and a conveyor belt (12). The top of the nut vibrating plate (11) has an opening for inserting one end of the conveyor belt (12). The stamping assembly (2) includes a machine base (21), a rotating disk (22) rotatably connected to the top of the machine base (21), and a stamping mechanism (23) fixedly connected to the top of the machine base (21) and facing the rotating disk (22). The stamping mechanism (23) includes a fixed seat (231) fixedly connected to the top of the machine base (21), eccentric plates (232) rotatably connected to both sides of the fixed seat (231), a rotating shaft (233) fixedly connected to the eccentric plate (232), a connecting rod (234) rotatably connected to the rotating shaft (233), and a stamping head (235) rotatably connected to the connecting rod (234). The pre-assembly assembly (3) includes a conveying groove (31) for conveying the locking plate, a reciprocating cylinder (32) fixedly connected to the top wall of the conveying groove (31), and an electromagnet (33) fixedly connected to the end of the push rod of the reciprocating cylinder (32). The conveying groove (31) is fixedly connected above the nut conveyor belt (12), and the conveying groove (31) has a positioning hole (311) for the locking plate to pass through.
2. The locking nut assembly equipment according to claim 1, characterized in that: The rotating disk (22) has several positioning grooves (221) at equal intervals around its axis for placing nuts, and the positioning grooves (221) extend to the side wall of the rotating disk (22).
3. The locking nut assembly equipment according to claim 2, characterized in that: The bottom of the conveying groove (31) near the rotating disk (22) is a positioning seat (312), and the positioning hole (311) passes through the positioning seat (312) and is directly opposite the positioning groove (221).
4. The locking nut assembly equipment according to claim 3, characterized in that: The positioning hole (311) has a receiving groove (313) on the inner wall of its opposite sides. A stop block (314) is slidably connected to the inner wall of the receiving groove (313). A spring (315) is provided in the receiving groove (313). One end of the spring (315) abuts against the stop block (314), and the other end abuts against the inner wall of the receiving groove (313).
5. The locking nut assembly equipment according to claim 4, characterized in that: The top of the stop (314) is provided with a guide surface (316).
6. The locking nut assembly equipment according to claim 4, characterized in that: The distance from the top of the stop (314) to the bottom wall of the conveying groove (31) is less than the thickness of the locking piece.
7. The locking nut assembly equipment according to claim 1, characterized in that: The top of the machine (21) is connected to the discharge chute (4) on the side away from the conveying chute (31).
8. The locking nut assembly equipment according to claim 1, characterized in that: The top of the machine base (21) is fixedly connected to a guide plate (5), the bottom wall of the guide plate (5) is in contact with the top wall of the rotating disk (22), and the guide plate (5) is located on the side of the rotating disk (22) away from the conveying trough (31).
9. The locking nut assembly equipment according to claim 8, characterized in that: The top of the machine base (21) is fixedly connected to an anti-detachment plate (6) that abuts against the outer wall of the rotating disk (22). The anti-detachment plate (6) is located on the side of the rotating disk (22) away from the guide plate (5).