Nut machining and grinding mechanism

Abstract

The utility model relates to the technical field of nut machining, in particular to a nut machining and grinding mechanism which comprises a U-shaped grinding rack, a nut grinding assembly and a nut positioning assembly. The nut grinding assembly comprises a first lifting base and a second lifting base which are slidably installed on the two sides, close to the top end, of the U-shaped grinding rack correspondingly, a grinding brush is movably installed between the first lifting base and the second lifting base through a rotating shaft, and a grinding motor is fixedly installed on the side, away from the grinding brush, of any set of the first lifting base and the second lifting base. Through the design of the nut grinding assembly and the nut positioning assembly, the two ends of the rotating shaft can be positioned, the nut mounting hollow shaft can automatically move, nuts can be conveniently taken and placed, the two ends of the nut mounting hollow shaft can be positioned, and the nut mounting hollow shaft can be conveniently mounted and dismounted. Therefore, the nut machining and grinding process can be stable and reliable.

Description

Technical Field

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

[0002] The main purpose of nut machining and grinding is to remove surface burrs, improve surface finish, reduce friction and wear, thereby improving the quality and performance of the nut.

[0003] A search revealed a nut processing and grinding mechanism in application CN220074193U. This mechanism utilizes a slider, spring, and grinding assembly to push the nut upwards, causing the grinding assembly to move the slider upwards. Once the nut is fixed in place by the support assembly, the spring force keeps the grinding assembly in contact with the nut, allowing the grinding assembly to be adjusted to grind nuts of different outer diameters, thus improving the device's performance.

[0004] However, there are still some defects and shortcomings that need to be optimized. The specific defects and shortcomings are as follows: the grinding brush and support plate in the nut processing and grinding mechanism only position one end, while the other end is in an unsupported state. This will inevitably lead to instability and reliability during the nut processing and grinding process, and large vibration. Therefore, it is necessary to design a nut processing and grinding mechanism to solve the problems mentioned in the background technology. Utility Model Content

[0005] The purpose of this utility model is to provide a nut processing and grinding mechanism. Through the design of the nut grinding component and the nut positioning component, the two ends of the rotating shaft can be positioned, and the hollow shaft for nut mounting can be automatically displaced for easy nut loading and unloading. It can also position the two ends of the hollow shaft for nut mounting, thereby making the nut processing and grinding process stable and reliable, greatly reducing the vibration amplitude, and thus effectively solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A nut processing and grinding mechanism includes a U-shaped grinding frame, a nut grinding assembly, and a nut positioning assembly. The nut grinding assembly is located near the top of the U-shaped grinding frame. The nut grinding assembly includes a first lifting seat and a second lifting seat, slidably mounted on opposite sides of the U-shaped grinding frame near the top. A grinding brush is movably mounted between the first and second lifting seats via a rotating shaft. A grinding motor is fixedly mounted on the side of either the first or second lifting seat furthest from the grinding brush. A nut positioning assembly is located at the bottom of the nut grinding assembly. The nut positioning assembly includes an L-shaped base fixedly mounted on one side of the U-shaped grinding frame and a hollow nut mounting shaft movably mounted inside the U-shaped grinding frame. A motor mount is movably mounted on the side of the L-shaped base closest to the hollow nut mounting shaft via a displacement electric telescopic rod. A rotary motor is fixedly mounted on the side of the motor mount furthest from the hollow nut mounting shaft.

[0008] As a preferred embodiment of this utility model, the rotating shaft and the output shaft of the grinding motor, the hollow shaft with nut mounting and the output shaft of the rotary motor are all fixedly connected by a coupling.

[0009] As a preferred embodiment of this utility model, the U-shaped grinding machine frame is provided with corresponding lifting grooves near the first lifting seat and the second lifting seat. Limiting grooves are provided on both sides of the inner wall of the lifting groove. Limiting sliders are fixedly installed on both sides of the first lifting seat and the second lifting seat, and the limiting sliders and the limiting grooves are slidably connected.

[0010] As a preferred embodiment of this utility model, the U-shaped grinding machine frame has an inlet / outlet opening near the L-shaped base, and the diameter of the inlet / outlet opening is much larger than the diameter of the hollow shaft for mounting the nut. The U-shaped grinding machine frame has a balancing hole on the side away from the L-shaped base, and the diameter of the balancing hole is slightly larger than the diameter of the hollow shaft for mounting the nut.

[0011] As a preferred embodiment of this utility model, the top surface of the L-shaped base is provided with a support groove, and the bottom of the motor base is fixedly installed with a support slide, and the support slide and the support groove are slidably connected.

[0012] As a preferred embodiment of this utility model, a conical telescopic rod is movably mounted on the end of the hollow shaft where the nut is mounted, away from the rotating motor, via an adjustable electric telescopic rod. Several sets of inner adjusting tiles arranged in a ring are movably mounted inside the hollow shaft where the nut is mounted. Outer adjusting tiles corresponding to the several sets of inner adjusting tiles arranged in a ring are movably mounted on the outer surface of the hollow shaft where the nut is mounted. Any set of inner adjusting tiles arranged in a ring and its corresponding outer adjusting tile are fixedly connected by a connecting slide rod. A spring is fitted on the outer surface of the connecting slide rod near the end of the inner adjusting tile.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, the design of the nut grinding assembly utilizes a first lifting seat and a second lifting seat to position both ends of the rotating shaft, allowing them to slide up and down with the rotating shaft. Furthermore, the design of the nut positioning assembly enables the hollow shaft for nut mounting to automatically shift, facilitating nut placement and removal. It also positions both ends of the hollow shaft, ensuring a stable and reliable nut grinding process and significantly reducing vibration. This effectively solves the technical problem in existing nut grinding mechanisms where the grinding brush and support plate only position one end, leaving the other end suspended, inevitably leading to instability, reliability, and significant vibration during nut grinding. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0016] Figure 2 This is an enlarged three-dimensional structural diagram of the nut grinding assembly in this utility model;

[0017] Figure 3 This is an enlarged three-dimensional structural diagram of the nut positioning component in this utility model;

[0018] Figure 4 This is a schematic diagram of the internal three-dimensional structure of the hollow shaft for mounting the nut in this utility model.

[0019] In the diagram: 1. U-shaped grinding machine frame; 11. Lifting groove; 12. Limiting slide; 13. Inlet / outlet opening; 14. Balancing perforation; 2. Nut grinding assembly; 21. First lifting seat; 22. Second lifting seat; 23. Rotating shaft; 24. Grinding brush; 25. Grinding motor; 26. Limiting slider; 3. Nut positioning assembly; 31. L-shaped fixed seat; 311. Support slide; 32. Nut mounting hollow shaft; 321. Adjustment electric telescopic rod; 322. Conical telescopic rod; 323. Inner adjusting tile; 324. Outer adjusting tile; 325. Connecting slide; 326. Spring; 33. Displacement electric telescopic rod; 34. Motor base; 341. Support slide; 35. Rotary motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Example:

[0022] This utility model provides a nut processing and grinding mechanism. Through the design of the nut grinding component and the nut positioning component, the two ends of the rotating shaft can be positioned, and the hollow shaft for nut mounting can be automatically displaced for easy nut loading and unloading. The two ends of the hollow shaft for nut mounting can also be positioned, thereby making the nut processing and grinding process stable and reliable, greatly reducing the vibration amplitude, and thus effectively solving the problems mentioned in the background art.

[0023] Please see Figures 1-4 This utility model provides a technical solution:

[0024] A nut processing and grinding mechanism includes a U-shaped grinding frame 1, a nut grinding assembly 2, and a nut positioning assembly 3. The nut grinding assembly 2 is provided inside the U-shaped grinding frame 1 near the top, and the nut positioning assembly 3 is provided at the bottom of the nut grinding assembly 2.

[0025] The nut grinding assembly 2 includes a first lifting seat 21 and a second lifting seat 22, which are slidably mounted on both sides of the U-shaped grinding frame 1 near the top. A grinding brush 24 is movably mounted between the first lifting seat 21 and the second lifting seat 22 via a rotating shaft 23. A grinding motor 25 is fixedly mounted on the side of either the first lifting seat 21 or the second lifting seat 22 away from the grinding brush 24. The nut positioning assembly 3 includes an L-shaped fixed seat 31 fixedly mounted on one side of the U-shaped grinding frame 1 and a nut mounting hollow shaft 32 movably mounted inside the U-shaped grinding frame 1. The L-shaped fixed seat 31 is close to the nut mounting shaft. A motor base 34 is movably mounted on one side of the hollow shaft 32 via a displacement electric telescopic rod 33. A rotary motor 35 is fixedly mounted on the side of the motor base 34 away from the nut mounting hollow shaft 32. The output shafts of the rotary shaft 23 and the grinding motor 25, as well as the output shafts of the nut mounting hollow shaft 32 and the rotary motor 35, are all fixedly connected by couplings. When the nut is installed, the displacement electric telescopic rod 33 retracts away from the nut mounting hollow shaft 32. Under its action, the motor base 34 automatically moves on the top surface of the L-shaped fixed base 31 until the end of the nut mounting hollow shaft 32 away from the rotary motor 35 is fully engaged. The nut is inserted into the U-shaped grinding frame 1, and then installed. During installation, the nut pushes the rotating shaft 23 and the grinding brush 24 upwards. At the same time, the first lifting seat 21 and the second lifting seat 22 slide upwards a certain distance, ensuring that the grinding brush 24 is always in contact with the outer surface of the nut. After installation, the displacement is extended by the electric telescopic rod 33 towards the hollow shaft 32 where the nut is installed. Subsequently, the end of the hollow shaft 32 away from the rotary motor 35 extends from the inside of the U-shaped grinding frame 1 to the side of the U-shaped grinding frame 1. During nut grinding, the grinding motor 25 and the rotary motor 35 work simultaneously. At this time, the nut rotates continuously, and during the rotation, the grinding brush 24 grinds its outer surface in all directions. It is also suitable for grinding nuts with different outer diameters. Through the design of the nut grinding component 2, the first lifting seat 21 and the second lifting seat 22 are used to position the two ends of the rotating shaft 23 and slide up and down with the rotating shaft 23. Through the design of the nut positioning component 3, the nut mounting hollow shaft 32 can be automatically displaced, making it convenient to pick up and put down the nut. It can also position the two ends of the nut mounting hollow shaft 32, so that the nut processing and grinding process can be stable and reliable, and the vibration amplitude is greatly reduced.

[0026] Furthermore, in this embodiment, please refer to Figure 1 and Figure 2The U-shaped grinding machine frame 1 has corresponding lifting grooves 11 near the first lifting seat 21 and the second lifting seat 22. Limiting grooves 12 are provided on both sides of the inner wall of the lifting grooves 11. Limiting sliders 26 are fixedly installed on both sides of the first lifting seat 21 and the second lifting seat 22. The limiting sliders 26 and the limiting grooves 12 are slidably connected. The design of the limiting sliders 26 and the limiting grooves 12 makes the lifting of the first lifting seat 21 and the second lifting seat 22 more stable, which is conducive to the grinding of nuts.

[0027] Furthermore, in this embodiment, please refer to Figure 1 and Figure 3 The U-shaped grinding machine frame 1 has an inlet / outlet opening 13 through it near the L-shaped base 31, and the diameter of the inlet / outlet opening 13 is much larger than the diameter of the hollow shaft 32 for mounting the nut. The side of the U-shaped grinding machine frame 1 away from the L-shaped base 31 has a through-hole 14 for balancing, and the diameter of the through-hole 14 is slightly larger than the diameter of the hollow shaft 32 for mounting the nut. The design of the inlet / outlet opening 13 can effectively avoid obstructing the displacement of the hollow shaft 32 for mounting the nut. At the same time, the design of the through-hole 14 facilitates the insertion and removal of the hollow shaft 32 for mounting the nut, which is beneficial to its positioning.

[0028] Furthermore, in this embodiment, please refer to Figure 3 The L-shaped base 31 has a support groove 311 on its top surface. The motor base 34 has a support slide 341 fixedly installed at its bottom. The support slide 341 and the support groove 311 are slidably connected. The design of the support slide 341 and the support groove 311 makes the displacement of the hollow shaft 32 with the nut more stable and smooth.

[0029] Furthermore, in this embodiment, please refer to Figure 4A conical telescopic rod 322 is movably mounted on the end of the hollow shaft 32 away from the rotary motor 35 via an adjustable electric telescopic rod 321. Several sets of annularly distributed inner adjusting tiles 323 are movably mounted inside the hollow shaft 32. Corresponding outer adjusting tiles 324 are movably mounted on the outer surface of the hollow shaft 32. Any set of annularly distributed inner adjusting tiles 323 and its corresponding outer adjusting tile 324 are fixedly connected via a connecting slide rod 325. A sleeve is fitted on the outer surface of the connecting slide rod 325 near the end of the inner adjusting tile 323. Equipped with spring 326, when installing the nut, the nut to be ground can be fitted onto the outer surface of the outer adjusting plate 324. Then, the electric telescopic rod 321 is extended into the hollow shaft 32 where the nut is mounted. At this time, under its action, the conical telescopic rod 322 moves towards the center of the hollow shaft 32 where the nut is mounted, and its diameter increases continuously. The inner adjusting plate 323 is compressed by the spring 326, and the connecting slide rod 325 slides outward. The outer adjusting plate 324 extends outward continuously until it is tightly fitted with the inner wall of the nut, thus completing the fixation. It is not only efficient and convenient with strong stability, but also suitable for grinding nuts with different inner diameters.

[0030] In this embodiment, the specific implementation scenario is as follows: When installing the nut, the electric telescopic rod 33 retracts away from the hollow shaft 32 where the nut is installed. Under its action, the motor seat 34 automatically moves on the top surface of the L-shaped fixed seat 31 until the end of the hollow shaft 32 where the nut is installed, away from the rotary motor 35, is completely inserted into the U-shaped grinding frame 1. Then, the nut to be ground is installed by fitting it onto the outer surface of the outer adjusting tile 324. Then, the electric telescopic rod 321 expands into the hollow shaft 32 where the nut is installed. Under its action, the conical telescopic rod 322 moves towards the center of the hollow shaft 32 where the nut is installed, and its diameter continuously increases. The inner adjusting tile 323 is compressed by the spring 326, and the connecting slide rod 325 slides outward. The outer adjusting tile 324 extends outward continuously until it is tightly fitted to the inner wall of the nut, completing the fixation. During installation, the nut pushes the rotating shaft 23 and the grinding brush 24 upward, while the first lifting seat 21 and the second lifting seat 22 move accordingly. The nut slides upward a certain distance, ensuring that the grinding brush 24 remains in contact with the outer surface of the nut. After installation, the displacement is extended by the electric telescopic rod 33 towards the hollow shaft 32 where the nut is mounted. Subsequently, the end of the hollow shaft 32 away from the rotary motor 35 extends from the inside of the U-shaped grinding frame 1 to the side of the U-shaped grinding frame 1. During nut grinding, the grinding motor 25 and the rotary motor 35 work simultaneously, causing the nut to rotate continuously. During rotation, the grinding brush 24 performs all-round grinding on its outer surface. This method is also suitable for grinding nuts of different outer diameters. Through the design of the nut grinding component 2, the first lifting seat 21 and the second lifting seat 22 are used to position both ends of the rotating shaft 23, allowing it to slide up and down with the rotating shaft 23. The design of the nut positioning component 3 allows the hollow shaft 32 to automatically move, facilitating the placement and removal of the nut. It also positions both ends of the hollow shaft 32, ensuring a stable and reliable nut grinding process and significantly reducing vibration amplitude.

[0031] 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 and polishing mechanism, comprising a U-shaped polishing frame (1), a nut polishing assembly (2) and a nut positioning assembly (3), characterized in that: The interior of the U-shaped polishing machine frame (1) is provided with a nut polishing assembly (2) near the top end, the nut polishing assembly (2) comprises a first lifting seat (21) and a second lifting seat (22) which are slidingly installed on both sides of the U-shaped polishing machine frame (1) near the top end respectively, a polishing brush (24) is movably installed between the first lifting seat (21) and the second lifting seat (22) through a rotating shaft (23), a polishing motor (25) is fixedly installed on the side of any one of the first lifting seat (21) and the second lifting seat (22) away from the polishing brush (24), a nut positioning assembly (3) is arranged at the bottom of the nut polishing assembly (2), the nut positioning assembly (3) comprises an L-shaped fixed seat (31) fixedly installed on one side of the U-shaped polishing machine frame (1) and a nut mounting hollow shaft (32) movably installed in the U-shaped polishing machine frame (1), a motor seat (34) is movably installed on the side of the L-shaped fixed seat (31) close to the nut mounting hollow shaft (32) through a displacement electric telescopic rod (33), and a rotating motor (35) is fixedly installed on the side of the motor seat (34) away from the nut mounting hollow shaft (32).

2. The nut machining and polishing mechanism according to claim 1, characterized in that: The rotating shaft (23) and the output shaft of the polishing motor (25), the output shaft of the nut mounting hollow shaft (32) and the output shaft of the rotating motor (35) are fixedly connected through shaft couplings.

3. The nut machining and polishing mechanism according to claim 1, characterized in that: The U-shaped polishing machine frame (1) is provided with corresponding lifting grooves (11) near the first lifting seat (21) and the second lifting seat (22), limit sliding grooves (12) are formed on the inner walls of the lifting grooves (11), limit sliding blocks (26) are fixedly installed on the two sides of the first lifting seat (21) and the second lifting seat (22), and the limit sliding blocks (26) and the limit sliding grooves (12) are slidingly connected.

4. The nut machining and polishing mechanism according to claim 1, characterized in that: The U-shaped polishing machine frame (1) is provided with an access opening (13) penetratingly formed near the L-shaped fixed seat (31), the diameter of the access opening (13) is much larger than the diameter of the nut mounting hollow shaft (32), the U-shaped polishing machine frame (1) is provided with a balance through hole (14) penetratingly formed on the side away from the L-shaped fixed seat (31), and the diameter of the balance through hole (14) is slightly larger than the diameter of the nut mounting hollow shaft (32).

5. The nut machining and polishing mechanism according to claim 1, characterized in that: The top surface of the L-shaped fixed seat (31) is provided with a supporting sliding groove (311), and the bottom of the motor seat (34) is fixedly installed with a supporting sliding table (341), and the supporting sliding table (341) and the supporting sliding groove (311) are slidingly connected.

6. The nut machining and polishing mechanism according to claim 1, characterized in that: The interior of the nut-mounted hollow shaft (32) is movably mounted with a conical scaling rod (322) through an electric telescopic rod (321) at one end away from the rotary motor (35), the interior of the nut-mounted hollow shaft (32) is movably mounted with a plurality of groups of annularly distributed inner adjusting tiles (323), the outer surface of the nut-mounted hollow shaft (32) is movably mounted with a plurality of groups of outer adjusting tiles (324) corresponding to the plurality of groups of annularly distributed inner adjusting tiles (323), any one of the plurality of groups of annularly distributed inner adjusting tiles (323) and the corresponding outer adjusting tile (324) are fixedly connected through a connecting slide rod (325), and the outer surface of the connecting slide rod (325) is sleeved with a spring (326) at one end close to the inner adjusting tile (323).

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