Clamping mechanism for nut machining

By designing a clamping mechanism for nut processing that adapts to different processing steps, and utilizing a combination of hollow shaft, guide plate, and clamping rod, the problem of the simple structure of traditional clamping mechanisms is solved, achieving efficient and flexible clamping for nut processing and improving processing efficiency.

CN224088773UActive Publication Date: 2026-04-07SHANGHAI CAIFU MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Traditional clamping mechanisms for nut processing have a simple structure and a single clamping method, making it inconvenient to change the clamping method according to different processing steps. This reduces their practicality and flexibility, and affects the efficiency of nut processing.

Method used

A clamping mechanism for nut processing, including a mounting plate and a bidirectional clamping mechanism, was designed. Through the combination of hollow shaft, guide plate and clamping rod, multiple clamping rods can be synchronously contracted and expanded to adapt to the needs of different processing steps. The dual-axis motor drive transmission system can achieve precise positioning and efficient clamping.

Benefits of technology

It enables flexible clamping of nuts in different processing steps, improving processing efficiency and adaptability, and meeting the needs of various processing steps.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of nut machining, and particularly relates to a clamping mechanism for nut machining, which comprises a mounting plate, the surface of the mounting plate is fixedly connected with an equipment bracket, and one side of the mounting plate is provided with a bidirectional clamping mechanism; the clamping rods can slide and move along the inner wall tracks of the guide grooves, the clamping rods can synchronously contract or expand, the nuts are arranged on the surfaces of the clamping rods in a sleeving mode through the screw holes at equal intervals, the clamping rods synchronously expand, the nuts are fixed from the screw holes of the nuts, and therefore the nuts can be fixed conveniently. According to the nut surface polishing and deburring device, the multiple nuts are placed between the multiple clamping rods at equal intervals, the multiple clamping rods synchronously contract, the surfaces of the nuts are clamped, the nuts can be subjected to trepanning or screw hole polishing and other procedures, and the effects that the nuts are flexibly clamped, and the nut surface polishing and deburring device is suitable for different machining procedures are achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to nut processing field, concretely is a kind of clamping mechanism for nut processing. BACKGROUND

[0002] Nut is the part used in cooperation with bolt, screw and other threaded fasteners, by internal thread and the external thread of bolt screwing, play fastening connection effect, in machinery, building, electronics, automobile and many other fields, it is the key component of guaranteeing equipment structure stability and reliability.

[0003] The clamping mechanism for nut processing is the core device to ensure the stability of the nut during processing, accurate positioning and efficient clamping, however, most of the traditional clamping mechanisms for nut processing have simple structure and single clamping mode, which is inconvenient to change the clamping mode according to different processing procedures, resulting in reduced practicability and flexibility, and long-term impact on the processing efficiency of nuts. UTILITY MODEL CONTENTS

[0004] In order to make up for the shortcomings of the prior art, most of the traditional clamping mechanisms for nut processing have simple structure and single clamping mode, which is inconvenient to change the clamping mode according to different processing procedures, resulting in reduced practicability and flexibility, and long-term impact on the processing efficiency of nuts, etc.

[0005] The utility model solves the technical scheme that the technical scheme that the utility model solves its technical problem is: a kind of clamping mechanism for nut processing, including installation plate, the surface of installation plate is fixedly connected with equipment support, the side of installation plate is provided with two-way clamping mechanism;

[0006] The two-way clamping mechanism includes a hollow shaft, the inner cavity of installation plate is rotatably connected to the surface of the hollow shaft, the surface of the hollow shaft is slidably connected with a connecting ring, one side of the connecting ring is fixedly connected to one side of the installation plate, the surface of the connecting ring is fixedly connected with a limit rod, the number of limit rods is multiple, the other end of the limit rod is fixedly connected with a limit plate, the surface of the limit rod is slidably connected with a sliding block, one side of the sliding block is attached to one side of the installation plate, the other side of the sliding block is fixedly connected with a clamping rod, the surface of the hollow shaft is fixedly connected with a guide disc, a guide groove is formed in one side of the guide disc, the number of guide grooves is multiple, the surface of the clamping rod is slidably connected to the inner wall of the corresponding guide groove.

[0007] As a preferred, the surface of the clamping rod is fixedly provided with a resistance-increasing sleeve, and the surface of the resistance-increasing sleeve is fixedly connected with a positioning plate.

[0008] As preferred, one side of the equipment support is fixedly connected with a fixed plate, an inner wall of the fixed plate is fixedly installed with a double-shaft motor, one side output end of the double-shaft motor is fixedly connected with a first transmission shaft, and the other side output end of the double-shaft motor is fixedly connected with a second transmission shaft.

[0009] As preferred, one end of the first transmission shaft is fixedly connected with a driving gear, the surface of the hollow shaft is fixedly connected with a driven gear, and the teeth of the driving gear and the teeth of the driven gear are mutually engaged.

[0010] As preferred, one end of the second transmission shaft is fixedly connected with a driving wheel, one side of the equipment support is rotatably connected with a third transmission shaft, the surface of the third transmission shaft is fixedly connected with a driven wheel, the surface of the driving wheel and the surface of the driven wheel are in transmission connection with a transmission belt, and the surface of the third transmission shaft is in sliding connection with the inner cavity of the hollow shaft.

[0011] As preferred, one end of the third transmission shaft is provided with a mounting slot, the surface of the third transmission shaft is provided with a plurality of fixing holes, and the inner walls of the fixing holes are in communication with the inner wall of the mounting slot.

[0012] As preferred, the inner wall of the mounting slot is inserted with a mounting rod, the inner cavity of the mounting rod is in sliding connection with an elastic clamping block, the surface of the elastic clamping block is inserted into the inner wall of the fixing hole, and one end of the mounting rod is fixedly connected with a processed piece.

[0013] The utility model discloses the beneficial effect lies in:

[0014] The mounting plate plays a main connecting role in the utility model, the hollow shaft in the bidirectional clamping mechanism can rotate along the inner cavity of the mounting plate, the hollow shaft can drive the guide disc to rotate when the hollow shaft rotates forward or reversely, the guide disc can drive the clamping rod to slide along the inner wall track of the guide groove when the guide disc rotates forward or reversely, and multiple clamping rods can realize synchronous contraction or expansion. BRIEF DESCRIPTION OF DRAWINGS

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a first three-dimensional schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of the bidirectional clamping mechanism of this utility model;

[0018] Figure 3 This is a second three-dimensional schematic diagram of the overall structure of this utility model;

[0019] Figure 4 This is a schematic diagram showing the disassembled third drive shaft and machined parts of this utility model;

[0020] Figure 5 This is a schematic diagram of the layout of the third drive shaft of this utility model and its connection with the workpiece.

[0021] In the diagram: 1. Mounting plate; 2. Equipment bracket; 3. Two-way clamping mechanism; 301. Hollow shaft; 302. Connecting ring; 303. Limiting rod; 304. Limiting plate; 305. Slider; 306. Clamping rod; 307. Guide plate; 308. Guide groove; 4. Resistance increasing sleeve; 5. Machining part; 6. Positioning plate; 7. Fixing plate; 8. Dual-axis motor; 9. First drive shaft; 10. Second drive shaft; 11. Driving gear; 12. Driven gear; 13. Driving wheel; 14. Third drive shaft; 15. Driven wheel; 16. Transmission belt; 17. Mounting groove; 18. Fixing hole; 19. Mounting rod; 20. Elastic block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0024] This application discloses a clamping mechanism for nut machining. (Refer to...) Figure 1 and Figure 2A clamping mechanism for nut processing includes a mounting plate 1, a device bracket 2 fixedly connected to the surface of the mounting plate 1, and a bidirectional clamping mechanism 3 provided on one side of the mounting plate 1.

[0025] The bidirectional clamping mechanism 3 includes a hollow shaft 301. The surface of the hollow shaft 301 is rotatably connected to the inner cavity of the mounting plate 1. A connecting ring 302 is slidably connected to the surface of the hollow shaft 301. One side of the connecting ring 302 is fixedly connected to one side of the mounting plate 1. A limiting rod 303 is fixedly connected to the surface of the connecting ring 302. There are multiple limiting rods 303. The other end of each limiting rod 303 is fixedly connected to a limiting plate 304. A slider 305 is slidably connected to the surface of the limiting rod 303. One side of the slider 305 is attached to one side of the mounting plate 1. A clamping rod 306 is fixedly connected to the other side of the slider 305. A guide plate 307 is fixedly connected to the surface of the hollow shaft 301. A guide groove 308 is formed on one side of the guide plate 307. There are multiple guide grooves 308. The clamping rod 306... The surfaces are respectively slidably connected to the inner walls of the corresponding guide grooves 308. The mounting plate 1 of the nut processing clamping mechanism plays a major connecting role. The hollow shaft 301 in the bidirectional clamping mechanism 3 can rotate along the inner cavity of the mounting plate 1. When the hollow shaft 301 rotates forward or backward, it can drive the guide disk 307 to rotate. When the guide disk 307 rotates forward or backward, the clamping rod 306 can slide along the trajectory of the inner wall of the guide groove 308. Multiple clamping rods 306 can achieve synchronous contraction or expansion. The clamping rod 306 and the slider 305 are fixedly connected to each other as one unit. When the clamping rod 306 slides, the slider 305 can slide along the surface of the corresponding limiting rod 303, which improves the stability of the clamping rod 306. The sliding distance of the slider 305 can be limited by the limiting plate 304.

[0026] In addition, multiple nuts are fitted onto the surface of the clamping rod 306 at equal intervals through threaded holes. The multiple clamping rods 306 expand synchronously, thus fixing the nuts from the threaded holes, so that the nuts can be ground to remove burrs. Multiple nuts are placed at equal intervals between multiple clamping rods 306, and the multiple clamping rods 306 contract synchronously, thus clamping the surface of the nuts, so that the nuts can be drilled or ground.

[0027] Reference Figure 2 The surface of the clamping rod 306 is fixedly fitted with a resistance-increasing sleeve 4, and a positioning plate 6 is fixedly connected to the surface of the resistance-increasing sleeve 4. The resistance-increasing sleeve 4 can be made of rubber or a material with a frosted surface to increase the friction when the nut is fitted onto the surface of the clamping rod 306. The positioning plate 6 can limit the placement position of the nut.

[0028] Reference Figure 3A fixing plate 7 is fixedly connected to one side of the equipment bracket 2. A dual-axis motor 8 is fixedly installed on the inner wall of the fixing plate 7. A first drive shaft 9 is fixedly connected to one output end of the dual-axis motor 8, and a second drive shaft 10 is fixedly connected to the other output end of the dual-axis motor 8. Through the dual-axis motor 8, the first drive shaft 9 and the second drive shaft 10 in the dual-axis motor 8 are equipped with independent drive circuits and control interfaces. The first drive shaft 9 and the second drive shaft 10 each have their own set of windings, commutators or stator windings and corresponding power drive modules, thereby realizing the independent drive of the first drive shaft 9 and the second drive shaft 10.

[0029] Reference Figure 2 , Figure 3 and Figure 5 One end of the first drive shaft 9 is fixedly connected to a drive gear 11, and the surface of the hollow shaft 301 is fixedly connected to a driven gear 12. The teeth of the drive gear 11 and the driven gear 12 mesh with each other. Through the first drive shaft 9, the dual-shaft motor 8 can first drive the first drive shaft 9 to rotate. While the first drive shaft 9 rotates, it drives the drive gear 11 to rotate. The driven gear 12 is coaxially fixedly connected to the hollow shaft 301. Since the teeth of the drive gear 11 and the driven gear 12 mesh with each other, the rotation of the drive gear 11 can drive the driven gear 12 and the hollow shaft 301 to rotate at the same time.

[0030] Reference Figures 3 to 5 One end of the second drive shaft 10 is fixedly connected to a drive wheel 13. A third drive shaft 14 is rotatably connected to one side of the equipment bracket 2. A driven wheel 15 is fixedly connected to the surface of the third drive shaft 14. A drive belt 16 is drivingly connected to the surfaces of the drive wheel 13 and the driven wheel 15. The surface of the third drive shaft 14 is slidably connected to the inner cavity of the hollow shaft 301. One end of the third drive shaft 14 has a mounting groove 17. The surface of the third drive shaft 14 has fixing holes 18. There are multiple fixing holes 18, and the inner walls of all fixing holes 18 are connected to the inner walls of the mounting groove 17. An installation rod 19 is inserted into the inner wall, and an elastic block 20 is slidably connected to the inner cavity of the installation rod 19. The surface of the elastic block 20 is inserted into the inner wall of the fixing hole 18. A workpiece 5 is fixedly connected to one end of the installation rod 19. The dual-axis motor 8 can subsequently drive the second drive shaft 10 to rotate through the second drive shaft 10. The rotation of the second drive shaft 10 drives the drive wheel 13 to rotate. The rotation of the drive wheel 13 drives the transmission belt 16 to rotate. The rotation of the transmission belt 16 drives the driven wheel 15 and the third drive shaft 14 to rotate. The third drive shaft 14 rotates along the inner cavity of the hollow shaft 301.

[0031] In addition, the machining part 5 can be installed according to the processing requirements. The machining part 5 can perform processes such as drilling holes or grinding threads in the nut. The machining part 5 can be fixedly installed in the fixing hole 18 of the mounting groove 17 of the third drive shaft 14 through the mounting rod 19 and the elastic block 20. The third drive shaft 14 rotates along the inner cavity of the hollow shaft 301 while driving the machining part 5 to rotate.

[0032] Working principle: The mounting plate 1 serves as the main connection. The dual-axis motor 8 first drives the first drive shaft 9 to rotate. Simultaneously, the rotation of the first drive shaft 9 drives the drive gear 11 to rotate. The driven gear 12 is coaxially and fixedly connected to the hollow shaft 301. Because the teeth of the drive gear 11 and the driven gear 12 mesh, the rotation of the drive gear 11 drives the driven gear 12 and the hollow shaft 301 to rotate. The hollow shaft 301 can rotate along the inner cavity of the mounting plate 1. Simultaneously, the rotation of the hollow shaft 301 in both directions drives the guide plate 307 to rotate. Simultaneously, the rotation of the guide plate 307 in both directions causes the clamping rods 306 to slide along the inner wall of the guide groove 308. Multiple clamping rods 306 can achieve... The clamping rod 306 and the slider 305 are fixedly connected as one unit, and the clamping rod 306 slides while the slider 305 slides along the surface of the corresponding limiting rod 303, which improves the stability of the clamping rod 306. The sliding distance of the slider 305 can be limited by the limiting plate 304. Multiple nuts are sleeved on the surface of the clamping rod 306 at equal intervals through the threaded holes. The multiple clamping rods 306 expand synchronously, and the nuts are fixed from the threaded holes of the nuts so that the nuts can be ground to remove burrs. Multiple nuts are placed at equal intervals between the multiple clamping rods 306. The multiple clamping rods 306 contract synchronously, and the surface of the nuts is clamped so that the nuts can be drilled or ground.

[0033] The machining part 5 can be installed depending on the processing requirements. The machining part 5 can perform processes such as drilling holes or grinding threads in nuts. The machining part 5 can be fixedly installed in the fixing hole 18 of the mounting groove 17 of the third drive shaft 14 through the mounting rod 19 and the elastic block 20. When the second drive shaft 10 rotates, it drives the drive wheel 13 to rotate. When the drive wheel 13 rotates, it drives the transmission belt 16 to rotate. When the transmission belt 16 rotates, it drives the driven wheel 15 and the third drive shaft 14 to rotate. The third drive shaft 14 then drives the machining part 5 to rotate along the inner cavity of the hollow shaft 301.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A clamping mechanism for nut processing, characterized in that: Includes a mounting plate (1), on the surface of which a device bracket (2) is fixedly connected, and a two-way clamping mechanism (3) is provided on one side of the mounting plate (1); The bidirectional clamping mechanism (3) includes a hollow shaft (301), the surface of which is rotatably connected to the inner cavity of the mounting plate (1). A connecting ring (302) is slidably connected to the surface of the hollow shaft (301). One side of the connecting ring (302) is fixedly connected to one side of the mounting plate (1). A limiting rod (303) is fixedly connected to the surface of the connecting ring (302). There are multiple limiting rods (303), and the other end of each limiting rod (303) is fixedly connected to a limiting plate (304). A slider (305) is slidably connected to the surface of the limiting rod (303). One side of the slider (305) is attached to one side of the mounting plate (1). A clamping rod (306) is fixedly connected to the other side of the slider (305). A guide plate (307) is fixedly connected to the surface of the hollow shaft (301). A guide groove (308) is opened on one side of the guide plate (307). There are multiple guide grooves (308). The surfaces of the clamping rods (306) are slidably connected to the inner walls of the corresponding guide grooves (308).

2. The clamping mechanism for nut processing according to claim 1, characterized in that: The surface of each clamping rod (306) is fixedly fitted with a resistance-increasing sleeve (4), and a positioning plate (6) is fixedly connected to the surface of the resistance-increasing sleeve (4).

3. The clamping mechanism for nut processing according to claim 1, characterized in that: A fixing plate (7) is fixedly connected to one side of the equipment bracket (2). A dual-axis motor (8) is fixedly installed on the inner wall of the fixing plate (7). A first transmission shaft (9) is fixedly connected to one output end of the dual-axis motor (8), and a second transmission shaft (10) is fixedly connected to the other output end of the dual-axis motor (8).

4. The clamping mechanism for nut processing according to claim 3, characterized in that: One end of the first transmission shaft (9) is fixedly connected to a drive gear (11), and the surface of the hollow shaft (301) is fixedly connected to a driven gear (12). The teeth of the drive gear (11) and the teeth of the driven gear (12) mesh with each other.

5. The clamping mechanism for nut processing according to claim 3, characterized in that: One end of the second drive shaft (10) is fixedly connected to a drive wheel (13), and one side of the equipment bracket (2) is rotatably connected to a third drive shaft (14). A driven wheel (15) is fixedly connected to the surface of the third drive shaft (14). A drive belt (16) is drivingly connected to the surface of the drive wheel (13) and the surface of the driven wheel (15). The surface of the third drive shaft (14) is slidably connected to the inner cavity of the hollow shaft (301).

6. The clamping mechanism for nut processing according to claim 5, characterized in that: The third drive shaft (14) has a mounting groove (17) at one end and a fixing hole (18) on its surface. There are multiple fixing holes (18), and the inner wall of each fixing hole (18) is connected to the inner wall of the mounting groove (17).

7. The clamping mechanism for nut processing according to claim 6, characterized in that: An installation rod (19) is inserted into the inner wall of the mounting groove (17). An elastic block (20) is slidably connected to the inner cavity of the installation rod (19). The surface of the elastic block (20) is inserted into the inner wall of the fixing hole (18). A machined part (5) is fixedly connected to one end of the installation rod (19).