Nut machining tooling

By designing a cleaning roller and a reciprocating movement mechanism in the nut processing fixture, the problem of iron filings adhering during nut processing was solved, achieving thorough cleaning of the clamping plate surface and ensuring the nut's appearance and corrosion resistance.

CN224574811UActive Publication Date: 2026-07-31WUHU ZHONGLUO AUTOMATION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHU ZHONGLUO AUTOMATION TECHNOLOGY CO LTD
Filing Date
2025-10-14
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

During nut processing, iron filings can easily adhere to the surface of the clamping plate, potentially scratching the outer surface of the nut and affecting the product's appearance and corrosion resistance.

Method used

A nut processing fixture was designed, comprising a cleaning roller and a reciprocating moving mechanism. The cleaning roller brushes away iron filings from the surface of the clamping plate, and the reciprocating screw drives the cleaning roller to move up and down, increasing the vertical force. The protrusions on the outer wall of the cleaning roller contact the clamping plate through elastic elements, loosening the adhered iron filings. The combination of linear and rotary cleaning thoroughly removes impurities from the clamping plate.

Benefits of technology

It effectively prevents scratches on the outer surface of the nut, keeps the clamping plate surface clean, ensures the processing quality and appearance of the nut, avoids dead corners left by traditional cleaning methods, and improves demolding efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224574811U_ABST
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Abstract

This utility model discloses a nut processing fixture, including a base and a tapping structure. The tapping structure is fixedly installed on the top of the base. Two transmission wheels are arranged inside the base, and a conveying ring is sleeved on the outer wall of each wheel. Clamping plates are evenly installed on the outer wall of the conveying ring. Both transmission wheels are rotatably mounted inside the base via a first rotating shaft, one end of which is equipped with a motor. A cleaning roller is arranged at the bottom of the conveying ring, and both ends of the cleaning roller are fixedly connected to a second rotating shaft. A collection frame is arranged on one side of the base. After processing, when the clamping plate moves and contacts the cleaning roller, the bristles on the outer wall of the cleaning roller contact the surface of the clamping plate, helping to clean off iron filings adhering to the surface of the clamping plate. This prevents scratches on the outer surface of the nut during subsequent placement, which could affect the product's appearance and corrosion resistance, keeping the clamping plate clean and ensuring the processing quality of the nut.
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Description

Technical Field

[0001] This utility model relates to the field of nut processing technology, specifically a nut processing tooling. Background Technology

[0002] Nuts are an indispensable basic fastener in mechanical manufacturing and engineering construction. Their function is to fit tightly with bolts and achieve a stable connection between parts through the engagement of threads, ensuring that the entire mechanical system or engineering structure maintains a stable relative position and reliable mechanical properties during operation.

[0003] A search revealed patent CN223198199U, which describes a tooling for nut processing. The tooling includes a base with a conveying assembly fixedly connected to its top. The conveying assembly comprises a fixed seat, a connecting rod, a transmission wheel, a fixed block, a slide rail, and a conveying ring. The bottom of the fixed seat is fixedly connected to the top of the base, and the connecting rod is rotatably connected to the inner wall of the fixed seat. This invention, through the arrangement of the fixed seat, connecting rod, transmission wheel, fixed block, slide rail, conveying ring, and motor, allows the motor, powered by an external power source, to rotate the connecting rod. The connecting rod then rotates the transmission wheel, which in turn rotates the conveying ring. The rotation of the conveying ring provides the tooling for clamping the nut with the power to move to one side. The fixed block limits the movement of the connecting rod, the slide rail connected to the top of the fixed block limits the movement of the top conveying device, and the fixed seat secures the motor, thus achieving the effect of conveying nuts for processing.

[0004] Currently, during nut machining, the nut is placed in a groove in a clamping plate, and threads are created by moving and rotating a threaded rod downwards. During this process, metal shavings generated during nut machining easily adhere to the surface of the clamping plate. When inserting or removing the nut, these shavings may scratch the outer surface of the nut, thus affecting the product's appearance and corrosion resistance. Utility Model Content

[0005] The purpose of this utility model is to provide a nut machining fixture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a nut processing fixture, comprising a base and a tapping structure, wherein the tapping structure is fixedly installed on the top of the base, and two transmission wheels are provided inside the base, wherein a transmission ring is sleeved on the outer wall of the two transmission wheels, and clamping plates are evenly installed on the outer wall of the transmission ring, wherein both transmission wheels are rotatably installed inside the base via a first rotating shaft, and a motor is installed at one end of one of the first rotating shafts;

[0007] A cleaning roller is provided at the bottom of the conveyor ring, and a second rotating shaft is fixedly connected to both ends of the cleaning roller. Both second rotating shafts are embedded inside the base, and a collection frame is provided on one side of the base.

[0008] As a further preferred embodiment of this technical solution, each of the two second rotating shafts has a movable seat installed at the end away from the cleaning roller. Both movable seats are slidably installed inside the base. A reciprocating screw is threadedly connected to the inner wall of one of the movable seats. A first bevel gear is fixedly installed at the top end of the reciprocating screw. A second bevel gear is meshed with the top end of the first bevel gear. A third rotating shaft is fixedly installed on one side of the second bevel gear. The third rotating shaft is located on one side of the first rotating shaft. The third rotating shaft and the first rotating shaft are connected by a pulley system for transmission.

[0009] As a further preferred embodiment of this technical solution, a gear is fixedly installed on the outer wall of one of the second rotating shafts, and a rack plate is meshed with one side of the gear, the rack plate being fixedly installed inside the base.

[0010] As a further preferred embodiment of this technical solution, the second rotating shaft is rotatably connected to the movable seat.

[0011] As a further preferred embodiment of this technical solution, the outer walls at both ends of the cleaning roller are evenly distributed with protrusions in a ring array, and the protrusions are elastically connected to the cleaning roller through an elastic element.

[0012] This utility model provides a nut machining fixture, which has the following beneficial effects:

[0013] (1) This utility model cleans the surface of the clamping plate by cleaning roller. When working, the nut is first placed in the groove of the clamping plate, and then the motor is started to drive the first rotating shaft to rotate. When the first rotating shaft rotates, it drives the transmission wheel to rotate. The rotation of the transmission wheel drives the transmission ring to rotate. The rotation of the transmission ring drives the clamping plate to rotate, so that the clamping plate moves to the bottom of the tapping structure and stops. Then the nut is processed by the tapping structure. After processing, the clamping plate continues to move. When the clamping plate moves to the bottom of the transmission wheel, the processed nut inside falls out and slides into the collection frame for collection. When the clamping plate moves and contacts the cleaning roller, the brush bristles on the outer wall of the cleaning roller contact the surface of the clamping plate, which helps to clean the iron filings attached to the surface of the clamping plate. This prevents the outer surface of the nut from being scratched when the nut is placed later, which may affect the appearance and anti-corrosion performance of the product. This keeps the appearance of the clamping plate clean and ensures the processing quality of the nut.

[0014] (2) This utility model, through the reciprocating up-and-down movement of the cleaning roller, during operation, the rotation of the first rotating shaft drives the rotation of the third rotating shaft via a belt pulley group. The rotation of the third rotating shaft drives the rotation of the second bevel gear, which in turn drives the rotation of the first bevel gear. The rotation of the first bevel gear drives the rotation of the reciprocating screw. When the reciprocating screw rotates, it drives the moving seat to move up and down reciprocally. When the moving seat moves, it drives the cleaning roller to move up and down reciprocally via the second rotating shaft, increasing the "vertical force" of cleaning. This allows the bristles on the outer wall of the cleaning roller to embed into the tiny gaps, uneven areas, or grooves of the clamping plate surface, thoroughly removing embedded iron filings, dust, or impurities, avoiding the dead corners that may be left by traditional unidirectional cleaning. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the cleaning roller structure of this utility model.

[0019] In the diagram: 1. Base; 2. Tapping structure; 3. Transmission wheel; 4. Conveyor ring; 5. Clamping plate; 6. Collection frame; 7. First rotating shaft; 8. Motor; 9. Cleaning roller; 10. Second rotating shaft; 11. Moving seat; 12. Reciprocating screw; 13. First bevel gear; 14. Second bevel gear; 15. Third rotating shaft; 16. Pulley assembly; 17. Gear; 18. Rack plate; 19. Protrusion; 20. Elastic element. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figures 1 to 4 As shown, in this embodiment, a nut processing fixture includes a base 1 and a tapping structure 2. The tapping structure 2 is fixedly installed on the top of the base 1. Two transmission wheels 3 are arranged inside the base 1. A transmission ring 4 is sleeved on the outer wall of the two transmission wheels 3. Clamping plates 5 are evenly installed on the outer wall of the transmission ring 4. Both transmission wheels 3 are rotatably installed inside the base 1 through a first rotating shaft 7. A motor 8 is installed at one end of one of the first rotating shafts 7.

[0022] A cleaning roller 9 is provided at the bottom of the conveyor ring 4. Both ends of the cleaning roller 9 are fixedly connected to a second rotating shaft 10. Both second rotating shafts 10 are embedded inside the base 1. A collection frame 6 is provided on one side of the base 1.

[0023] The existing patent CN223198199U discloses a tooling for nut processing. This patent discloses the base 1, tapping structure 2, transmission wheel 3, transmission ring 4, clamping plate 5 and collection frame 6 proposed in this application. The technical means will not be described in detail here.

[0024] During operation, the nut is first placed in the groove of the clamping plate 5, and then the motor 8 is started to drive the first rotating shaft 7 to rotate. When the first rotating shaft 7 rotates, it drives the transmission wheel 3 to rotate. The rotation of the transmission wheel 3 drives the transmission ring 4 to rotate. The rotation of the transmission ring 4 drives the clamping plate 5 to rotate, so that the clamping plate 5 moves to the bottom of the tapping structure 2 and stops. Then the nut is processed through the tapping structure 2.

[0025] After processing, the clamping plate 5 continues to move. When the clamping plate 5 moves to the bottom of the transmission wheel 3, the internally processed nut falls out and slides into the collection frame 6 for collection.

[0026] When the clamping plate 5 moves and comes into contact with the cleaning roller 9, the bristles on the outer wall of the cleaning roller 9 come into contact with the surface of the clamping plate 5, which helps to sweep away the iron filings attached to the surface of the clamping plate 5. This prevents the outer surface of the nut from being scratched when the nut is placed later, which could affect the appearance and corrosion resistance of the product. This keeps the appearance of the clamping plate 5 clean and ensures the processing quality of the nut.

[0027] like Figures 1 to 4 As shown, each of the two second rotating shafts 10 has a movable seat 11 installed at the end away from the cleaning roller 9. Both movable seats 11 are slidably installed inside the base 1. A reciprocating screw 12 is threadedly connected to the inner wall of one of the movable seats 11. A first bevel gear 13 is fixedly installed at the top of the reciprocating screw 12. A second bevel gear 14 is meshed with the top of the first bevel gear 13. A third rotating shaft 15 is fixedly installed on one side of the second bevel gear 14. The third rotating shaft 15 is located on one side of the first rotating shaft 7. The third rotating shaft 15 and the first rotating shaft 7 are connected by a pulley set 16.

[0028] During operation, the rotation of the first rotating shaft 7 drives the rotation of the third rotating shaft 15 via the pulley group 16. The rotation of the third rotating shaft 15 drives the rotation of the second bevel gear 14, which in turn drives the rotation of the first bevel gear 13. The rotation of the first bevel gear 13 drives the rotation of the reciprocating screw 12. When the reciprocating screw 12 rotates, it drives the moving seat 11 to move up and down reciprocally. When the moving seat 11 moves, it drives the cleaning roller 9 to move up and down reciprocally via the second rotating shaft 10, increasing the "vertical force" of cleaning. This allows the bristles on the outer wall of the cleaning roller 9 to embed into the tiny gaps, uneven areas, or grooves of the clamping plate 5, thoroughly removing embedded iron filings, dust, or impurities, avoiding dead corners that may be left by traditional unidirectional cleaning.

[0029] like Figures 1 to 4 As shown, a gear 17 is fixedly installed on the outer wall of one of the second rotating shafts 10, and a rack plate 18 is meshed with one side of the gear 17. The rack plate 18 is fixedly installed inside the base 1.

[0030] When the cleaning roller 9 moves up and down, the movement of the second rotating shaft 10 drives the movement of the gear 17. When the gear 17 moves, it meshes with the rack plate 18 and rotates, thereby driving the cleaning roller 9 to rotate. This combination of linear cleaning and rotary cleaning further improves the cleaning effect on the clamping plate 5.

[0031] like Figure 3 and Figure 4 As shown, the second rotating shaft 10 is rotatably connected to the movable seat 11.

[0032] like Figure 3 and Figure 4 As shown, the outer walls at both ends of the cleaning roller 9 are evenly distributed with protrusions 19 in a ring array, and the protrusions 19 are elastically connected to the cleaning roller 9 through the elastic element 20.

[0033] When the cleaning roller 9 moves up and down or rotates and comes into contact with the surface of the clamping plate 5, the elastic potential energy of the elastic element 20 causes the protrusion 19 to strike the clamping plate 5. This not only loosens the adhering iron filings, but also helps the nuts inside the groove of the clamping plate 5 to fall out, preventing some nuts with burrs from getting stuck in the clamping plate 5. This improves the cleanliness of the surface of the clamping plate 5 and the demolding efficiency of the nuts after processing.

[0034] This utility model provides a nut machining fixture, the specific working principle of which is as follows:

[0035] During operation, the nut is first placed in the groove of the clamping plate 5, and then the motor 8 is started to drive the first rotating shaft 7 to rotate. When the first rotating shaft 7 rotates, it drives the transmission wheel 3 to rotate. The rotation of the transmission wheel 3 drives the transmission ring 4 to rotate. The rotation of the transmission ring 4 drives the clamping plate 5 to rotate, so that the clamping plate 5 moves to the bottom of the tapping structure 2 and stops. Then the nut is processed through the tapping structure 2.

[0036] After processing, the clamping plate 5 continues to move. When the clamping plate 5 moves to the bottom of the transmission wheel 3, the internally processed nut falls out and slides into the collection frame 6 for collection.

[0037] Simultaneously, the rotation of the first rotating shaft 7 drives the rotation of the third rotating shaft 15 through the pulley group 16. The rotation of the third rotating shaft 15 drives the rotation of the second bevel gear 14. The rotation of the second bevel gear 14 drives the rotation of the first bevel gear 13. The rotation of the first bevel gear 13 drives the rotation of the reciprocating screw 12. When the reciprocating screw 12 rotates, it drives the moving seat 11 to move up and down reciprocally. When the moving seat 11 moves, it drives the cleaning roller 9 to move up and down reciprocally through the second rotating shaft 10. When the clamping plate 5 moves and contacts the cleaning roller 9, the bristles on the outer wall of the cleaning roller 9 contact the surface of the clamping plate 5, cleaning off the iron filings attached to the surface of the clamping plate 5. At the same time, the elastic potential energy of the elastic element 20 causes the protrusion 19 to strike the clamping plate 5, which can not only loosen the adhered iron filings, but also help the nut inside the groove of the clamping plate 5 to fall out.

[0038] 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 and their equivalents.

Claims

1. A nut machining tooling device comprising a base (1) and a tapping structure (2), characterized in that: The tapping structure (2) is fixedly installed on the top of the base (1). The base (1) has two transmission wheels (3) inside. The outer walls of the two transmission wheels (3) are fitted with transmission rings (4). The outer walls of the transmission rings (4) are evenly fitted with clamping plates (5). The two transmission wheels (3) are rotatably installed inside the base (1) through a first rotating shaft (7). One end of the first rotating shaft (7) is fitted with a motor (8). The bottom of the conveying ring (4) is provided with a cleaning roller (9), and both ends of the cleaning roller (9) are fixedly connected with a second rotating shaft (10). Both second rotating shafts (10) are embedded inside the base (1). A collection frame (6) is provided on one side of the base (1).

2. The nut machining tooling apparatus of claim 1, wherein: Two second rotating shafts (10) are each equipped with a movable seat (11) at the end away from the cleaning roller (9). Both movable seats (11) are slidably installed inside the base (1). One of the movable seats (11) has a reciprocating screw (12) threadedly connected to its inner wall. A first bevel gear (13) is fixedly installed at the top of the reciprocating screw (12). A second bevel gear (14) is meshed with the top of the first bevel gear (13). A third rotating shaft (15) is fixedly installed on one side of the second bevel gear (14). The third rotating shaft (15) is located on one side of the first rotating shaft (7). The third rotating shaft (15) and the first rotating shaft (7) are connected by a pulley group (16).

3. The nut machining tooling of claim 2, wherein: A gear (17) is fixedly installed on the outer wall of one of the second rotating shafts (10), and a rack plate (18) is meshed on one side of the gear (17). The rack plate (18) is fixedly installed inside the base (1).

4. The nut machining tooling of claim 2, wherein: The second rotating shaft (10) is rotatably connected to the movable seat (11).

5. The nut machining tooling apparatus of claim 1, wherein: The outer walls at both ends of the cleaning roller (9) are evenly distributed with protrusions (19) in a ring array. The protrusions (19) are elastically connected to the cleaning roller (9) through an elastic element (20).