High-precision ball screw nut grinding device

Abstract

The application discloses a high-precision ball screw nut grinding device and belongs to the technical field of grinding processing. The device comprises a machine base and a multi-point positioning and clamping module. In the application, a grinding assembly and a thread cutting assembly are arranged in pairs. Through the arrangement, two sets of grinding structures are used to grind the nut. Compared with the traditional grinding structure, the two sets of grinding structures greatly reduce the contact area with the nut surface. The multi-point contact grinding can greatly reduce the heat generated by the nut grinding without affecting the grinding. The real-time cooling by the cooling liquid is not needed, the cleanliness in the cabin is greatly improved, the device can realize the synchronous cutting of the internal thread of the nut during the external grinding of the nut, the subsequent additional processing procedure is not needed, the nut processing efficiency is improved, and the grinding thickness can be accurately controlled according to the requirement during the processing, so that the actual application effect of the device is improved.

Description

Technical Field

[0001] This invention belongs to the field of grinding technology, and particularly relates to a high-precision ball screw nut grinding device. Background Technology

[0002] A ball screw nut, also known as a ball screw nut, is an ideal product for converting rotary motion into linear motion, or vice versa. Its core working principle is to achieve efficient transmission through the rolling of balls between the screw and the nut. During the machining of ball screw nuts, their outer surfaces require grinding.

[0003] Chinese patent CN119159175A discloses a grinding device for long nuts with large helix angles, including a worktable. A positioning cylinder is connected to the left end of the worktable via a first electric telescopic arm. An outer connecting plate is slidably connected to the positioning cylinder, and a second electric telescopic arm is evenly distributed on the outer connecting plate. A coolant inlet pipe is slidably sleeved with a coolant extension pipe, and an upper buffer connecting pipe is rotatably sleeved at the lower inclined pipe at the end of the coolant extension pipe. A right support plate and a grinding motor are fixedly connected to the right side of the worktable. A first bevel gear is mounted on the output shaft, and the first bevel gear meshes with a second bevel gear. The upper and lower buffer connecting pipes are connected. When the first electric telescopic arm extends, the clamped long nut gradually moves towards the grinding wheel, and the coolant inlet pipe moves synchronously to wrap around the coolant extension pipe. This device achieves large helix angle grinding in a relatively small space, and the grinding coolant is directly sprayed from inside the grinding wheel for cooling, significantly reducing the grinding temperature. Modern grinding equipment generally requires coolant to cool the grinding process. Although the grinding process can be completed, the presence of coolant will inevitably reduce the cleanliness of the equipment, requiring regular cleaning. Furthermore, the grinding equipment cannot simultaneously perform thread cutting inside the nut while grinding. The two types of processing cannot be carried out at the same time, and the grinding effect on the outer surface of the nut cannot be guaranteed. The actual application effect of the equipment is not good. Therefore, a high-precision ball screw nut grinding device is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the problems that current grinding equipment generally requires coolant to cool the grinding process. Although the grinding process can be completed, the use of coolant inevitably leads to a significant decrease in the cleanliness of the equipment, requiring regular cleaning. Furthermore, the grinding equipment cannot simultaneously perform thread cutting inside the nut while grinding, resulting in the inability to carry out the two processes concurrently and the grinding effect on the outer surface of the nut not being guaranteed, leading to poor actual application performance of the equipment. Therefore, this invention proposes a high-precision ball screw nut grinding device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-precision ball screw nut grinding device, comprising a base and a multi-point positioning clamping module. A stroke groove is provided on the top surface of the base. An adjusting motor is fixedly installed on one side outer wall of the base. An adjusting stud is fixedly installed at one end of the output shaft of the adjusting motor. A moving block is installed on the external thread of the adjusting stud. The moving block is slidably installed inside the stroke groove. An mounting plate is fixedly installed on the top of the moving block. A drive motor is fixedly installed inside the mounting plate. An mounting cover is fixedly installed at one end of the output shaft of the drive motor. A control box and a telescopic frame are fixedly installed on the top surface of the base. A multi-point positioning clamping module is provided on one side of the telescopic frame.

[0006] The mounting cover has mounting grooves on its top and bottom surfaces. A grinding component is installed inside the mounting groove for grinding the outer surface of the nut. A guide rail is fixedly installed inside the mounting cover, and a thread cutting component is slidably installed on the guide rail for cutting the internal threads of the nut. An inner groove is provided on the inner wall of both the top and bottom surfaces of the mounting cover. A filter component is movably installed inside the inner groove for filtering and blocking debris generated during the cutting of the nut's internal thread hole.

[0007] By adopting the above technical solution and by providing a grinding assembly and a thread cutting assembly, two sets of grinding wheels are used to grind the nut. Compared with the traditional grinding structure, the two sets of grinding wheels greatly reduce the contact area with the nut surface. Multi-point contact grinding is used, which can greatly reduce the heat generated by the material during nut grinding without affecting the grinding process. There is no need to use coolant for real-time cooling, which greatly improves the cleanliness of the machine room. At the same time, the equipment can simultaneously cut the internal thread of the nut while grinding the outside of the nut, without the need for additional processing steps, which improves the nut processing efficiency. Moreover, the grinding thickness can be precisely controlled according to the requirements during processing, which improves the actual application effect of the equipment.

[0008] As a further description of the above technical solution:

[0009] The grinding assembly includes a base plate, which is fixedly installed inside a mounting groove. An electric actuator is fixedly installed on the top surface of the base plate, and an assembly plate is fixedly installed at one end of the output shaft of the electric actuator. A rotating groove is provided inside the assembly plate.

[0010] As a further description of the above technical solution:

[0011] The rotating groove is rotatably mounted with a mounting plate having an outer rotating rib. An adjusting motor is fixedly mounted on the outer surface of the assembly plate. An adjusting plate is fixedly mounted on one end of the output shaft of the adjusting motor. The adjusting plate is in rolling connection with the outer surface of the mounting plate.

[0012] As a further description of the above technical solution:

[0013] Two wheel frames are fixedly installed on the top surface of the mounting plate. A grinding wheel is rotatably mounted between the two wheel frames via a central wheel axle. Multiple mounting shells are fixedly installed on the outside of both sides of the central wheel axle. Polishing claws are movably mounted inside the mounting shells via built-in springs, with one end of the polishing claw located on the outside of the mounting shell.

[0014] As a further description of the above technical solution:

[0015] The thread cutting assembly includes an insertion plate, which is slidably mounted on a guide rail via a groove at its bottom. Multiple side springs are fixedly installed on one outer wall of the insertion plate, and one end of each side spring is in close contact with and pressed against the inner wall of the mounting cover.

[0016] As a further description of the above technical solution:

[0017] A mounting screw hole is provided at the center of the insertion plate, and a thread cutting tool is installed in the internal thread of the mounting screw hole. A chip removal groove is provided on the outer surface of the thread cutting tool, and a locking strip is fixedly installed on one side of the outer wall of the insertion plate.

[0018] As a further description of the above technical solution:

[0019] One side of the mounting cover is provided with a T-groove, and the inside of the T-groove is provided with a storage groove. A positioning plate is movably installed in the storage groove by a downward spring. A protrusion is fixedly installed on one side of the outer wall of the positioning plate, and the bottom end of the positioning plate is inserted into a slot provided on the upper surface of the positioning strip.

[0020] As a further description of the above technical solution:

[0021] The filter assembly includes a filter plate and a threaded sleeve shaft. The threaded sleeve shaft is horizontally fixed inside the inner groove, and the filter plate is slidably installed on the outside of the threaded sleeve shaft. A through hole is provided at the middle position of the filter plate.

[0022] As a further description of the above technical solution:

[0023] The centerline of the thread cutting tool coincides with the centerline of the through hole. Two rotating holes are provided on one outer wall of the filter plate, and a rotating shaft is rotatably installed in each of the two rotating holes.

[0024] As a further description of the above technical solution:

[0025] Multiple dispersing blades are fixedly installed on the outside of the rotating shaft. A side shell is fixedly installed on one end of the mounting cover. A nut guide is provided at the center of the side shell. A control panel is installed on the outside of the control box via a hinge.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0027] 1. In this invention, by providing a grinding assembly and a thread cutting assembly, during nut grinding, the nut is first clamped and installed inside a multi-point positioning clamping module. The height of the multi-point positioning clamping module is adjusted so that the center line of the nut coincides with the center line of the mounting cover. At this time, the adjusting motor is directly turned on to drive the adjusting stud to rotate. The adjusting stud can drive the mounting plate and the moving block to move synchronously, and the mounting cover to move synchronously. When one end of the nut enters the nut guide, the electric push rod is activated to adaptively control the movement of the grinding wheel, so that the grinding wheel and the outer surface of the nut are in contact and roll on the outer surface. At this time, the grinding wheel and the nut are parallel to each other. The drive motor is turned on to drive the entire mounting cover to rotate. The two sets of grinding assemblies can rotate synchronously with the mounting cover. At this time, the grinding wheel can rub against the nut to grind the outer surface of the nut. During this process, the grinding wheel can grind other positions of the nut by controlling the displacement of the mounting cover, and can be adjusted according to... The grinding thickness is varied by slowly displacing the grinding wheel via an electric actuator. Simultaneously with the rotation and movement of the mounting cover, the thread cutting assembly rotates and moves synchronously. At this point, the thread cutting tool contacts the center area of ​​the nut, achieving thread cutting at the nut's center. This setup utilizes two grinding structures to grind the nut. Compared to traditional grinding structures, these structures significantly reduce the contact area with the nut surface. Employing multi-point contact grinding, it greatly reduces the heat generated during nut grinding without affecting the grinding process, eliminating the need for real-time cooling and significantly improving the cleanliness of the machine compartment. Furthermore, this equipment can simultaneously cut the internal threads of the nut while grinding the external surface, eliminating the need for additional processing steps and improving nut processing efficiency. Moreover, the grinding thickness can be precisely controlled according to requirements, enhancing the equipment's practical application effectiveness.

[0028] 2. In this invention, polishing claws are provided on the outside of the grinding assembly. After grinding, the adjusting motor can be directly controlled to turn the adjusting disc to rotate. The adjusting disc can control the rotating of the mounting disc in contact with it, and the grinding wheel rotates synchronously until the grinding wheel is perpendicular to the nut. At this time, the mounting cover is controlled to rotate, and the grinding wheel can continuously roll on the surface of the nut, synchronously driving multiple polishing claws on both sides to rotate synchronously. Multiple polishing claws can contact the surface of the nut under the action of the built-in spring, and polish the surface of the nut. By controlling the movement of the mounting cover, the polishing area can be changed. Through this design, the angle of the grinding wheel can be adjusted after the nut is ground, so that the synchronous polishing treatment of the ground nut surface can be achieved, which improves the gloss of the nut surface. The operation is simple and quick, and further improves the application effect of the equipment.

[0029] 3. In this invention, by incorporating an internal filter assembly, the debris generated during thread cutting of the nut by the thread cutting tool can be discharged through the chip groove outside the thread cutting tool. These large debris particles can be blocked to one side by the filter assembly, while some fine debris particles can enter the grinding assembly side through the filter assembly and mix with the fine debris particles generated by the grinding assembly during nut grinding. When the outer cover rotates, the filter assembly can rotate synchronously, and its dispersing blades can rotate under the action of centrifugal force. The dispersing blades can disperse these fine particles, and the dispersed particles can cooperate with the grinding wheel to perform shot blasting grinding on the nut, further improving the grinding effect of the nut. In addition, the rotating dispersing blades can also achieve airflow disturbance, playing a certain role in processing cooling and heat dissipation, greatly improving the overall application effect of the equipment.

[0030] 4. In this invention, a positioning plate is provided, and the thread cutting component is designed as a quick-release type. When installing the thread cutting component, it is simply inserted into the mounting cover through a T-slot, so that one end of the positioning plate is engaged in the slot provided on the upper surface of the positioning strip, thus completing the positioning of the thread cutting component. When disassembling the thread cutting component, the positioning plate is moved upwards, and the thread cutting component can be pushed out by multiple side springs, completing the disassembly of the thread cutting component. The corresponding thread cutting tool can be quickly replaced according to the internal thread cutting specifications of the nut. Through this design, the disassembly and assembly of the thread cutting component can be completed quickly, enabling the equipment to cut various types of nut inner holes, greatly improving the application effect and processing versatility of the equipment. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of a high-precision ball screw nut grinding device.

[0032] Figure 2 This is a three-dimensional structural diagram of a high-precision ball screw nut grinding device from another angle.

[0033] Figure 3 This is an exploded three-dimensional structural diagram of a high-precision ball screw nut grinding device.

[0034] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the outer cover installed in a high-precision ball screw nut grinding device.

[0035] Figure 5 This is a schematic diagram of the combined three-dimensional structure of an outer cover installed in a high-precision ball screw nut grinding device.

[0036] Figure 6 This is an exploded three-dimensional structural diagram of the outer cover installed in a high-precision ball screw nut grinding device.

[0037] Figure 7 This is a three-dimensional structural diagram of the combined thread cutting component, filter component and grinding component in a high-precision ball screw nut grinding device.

[0038] Figure 8 This is an exploded three-dimensional structural diagram of the grinding component in a high-precision ball screw nut grinding device.

[0039] Figure 9 This is a three-dimensional structural diagram of the thread cutting component in a high-precision ball screw nut grinding device.

[0040] Figure 10 This is a three-dimensional structural diagram of a filter component in a high-precision ball screw nut grinding device.

[0041] Legend:

[0042] 1. Base; 2. Adjusting motor; 3. Control panel; 4. Control box; 5. Mounting cover; 6. Multi-point positioning clamping module; 7. Telescopic frame; 8. Stroke groove; 9. Mounting plate; 10. Drive motor; 11. Moving block; 12. Adjusting stud; 13. Thread cutting assembly; 131. Insertion plate; 132. Side top spring; 133. Thread cutting tool; 134. Locking strip; 14. Guide rail; 15. Filter assembly; 151. Filter plate; 152. Threaded sleeve shaft; 153. Dispersing blade; 154. Rotating shaft; 155. Through hole; 16. Nut guide; 17. Inner groove; 18. Positioning plate; 19. T-groove; 20. Grinding assembly; 201. Grinding wheel; 202. Mounting plate; 203. Polishing claw; 204. Built-in spring; 205. Adjusting motor; 206. Adjusting plate; 207. Mounting shell; 208. Center wheel shaft; 209. Rotating groove; 2010. Base plate; 2011. Assembly plate; 2012. Electric actuator; 21. Downward spring; 22. Mounting groove; 23. Protrusion; 24. Side shell. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Please see Figures 1-10 This invention provides a technical solution: a high-precision ball screw nut grinding device, including a base 1 and a multi-point positioning clamping module 6. A stroke groove 8 is provided on the top surface of the base 1. An adjusting motor 2 is fixedly installed on one side of the outer wall of the base 1. An adjusting stud 12 is fixedly installed at one end of the output shaft of the adjusting motor 2. A moving block 11 is installed on the external thread of the adjusting stud 12. The moving block 11 is slidably installed inside the stroke groove 8. An mounting plate 9 is fixedly installed at the top of the moving block 11. A drive motor 10 is fixedly installed inside the mounting plate 9. An mounting cover 5 is fixedly installed at one end of the output shaft of the drive motor 10. A control box 4 and a telescopic frame 7 are fixedly installed on the top surface of the base 1. A multi-point positioning clamping module 6 is provided on one side of the telescopic frame 7.

[0045] The mounting cover 5 has mounting grooves 22 on both its top and bottom surfaces. A grinding component 20 is installed inside the mounting groove 22 for grinding the outer surface of the nut. A guide rail 14 is fixedly installed inside the mounting cover 5. A thread cutting component 13 is slidably installed on the guide rail 14 for thread cutting inside the nut. An inner groove 17 is provided on the inner wall of both the top and bottom surfaces of the mounting cover 5. A filter component 15 is movably installed inside the inner groove 17 for filtering and blocking debris generated during the cutting of the nut's internal thread hole.

[0046] The grinding assembly 20 includes a base plate 2010, which is fixedly installed inside a mounting groove 22. An electric actuator 2012 is fixedly installed on the top surface of the base plate 2010. An assembly plate 2011 is fixedly installed at one end of the output shaft of the electric actuator 2012. A rotating groove 209 is provided inside the assembly plate 2011, and a mounting disc 202 with external rotating ribs is rotatably installed inside the rotating groove 209. An adjusting motor 205 is fixedly installed on the outer surface of the assembly plate 2011. An adjusting disc 206 is fixedly installed at one end of the output shaft of 205. The adjusting disc 206 is in rolling connection with the outer surface of the mounting disc 202. Two wheel frames are fixedly installed on the top surface of the mounting disc 202. A grinding wheel 201 is rotatably installed between the two wheel frames through a central wheel shaft 208. Multiple mounting shells 207 are fixedly installed on the outer sides of the central wheel shaft 208. Polishing claws 203 are movably installed inside the mounting shells 207 through built-in springs 204. One end of the polishing claw 203 is located on the outer side of the mounting shell 207.

[0047] The thread cutting assembly 13 includes an insertion plate 131, which is slidably mounted on a guide rail 14 via a groove at its bottom. A plurality of side springs 132 are fixedly mounted on one outer wall of the insertion plate 131, and one end of each side spring 132 is in close contact with and pressed against the inner wall of the mounting cover 5. A mounting screw hole is provided at the center of the insertion plate 131, and a thread cutting tool 133 is threaded into the mounting screw hole. A chip removal groove is provided on the outer surface of the thread cutting tool 133. A locking strip 134 is fixedly mounted on one outer wall of the insertion plate 131.

[0048] The specific implementation method is as follows: When performing nut grinding, the nut is first clamped and installed inside the multi-point positioning clamping module 6. The height of the multi-point positioning clamping module 6 is adjusted so that the center line of the nut coincides with the center line of the mounting cover 5. At this time, the adjusting motor 2 is directly turned on to drive the adjusting stud 12 to rotate. The adjusting stud 12 can drive the mounting plate 9 and the moving block 11 to move synchronously, and the mounting cover 5 to move synchronously. When one end of the nut enters the nut guide 16, the electric push rod 2012 is activated to adaptively control the movement of the grinding wheel 201, so that the grinding wheel 201 is in contact with the outer surface of the grinding nut and rolls on the outer surface. At this time, the grinding wheel 201 and the grinding nut are parallel to each other. The drive motor is then turned on. 10. The overall mounting cover 5 is rotated, and the two sets of grinding components 20 can rotate synchronously with the mounting cover 5. At this time, the grinding wheel 201 can rub against the nut and perform grinding on the outer surface of the nut. During this process, the grinding wheel 201 can perform grinding on other parts of the nut by controlling the displacement of the mounting cover 5. The grinding wheel 201 can be slowly displaced by the electric push rod 2012 according to the grinding thickness to achieve the change of grinding thickness. While the mounting cover 5 is rotating and moving, the thread cutting component 13 rotates and moves synchronously. At this time, the thread cutting tool 133 can contact the center area of ​​the nut to achieve thread cutting on the center of the nut.

[0049] This setup utilizes two sets of grinding wheels to grind the nut. Compared to traditional grinding structures, the two sets of grinding wheels significantly reduce the contact area with the nut surface. Employing multi-point contact grinding, it greatly reduces the heat generated during nut grinding without affecting the grinding process, eliminating the need for real-time cooling with coolant and significantly improving the cleanliness of the machine compartment. Furthermore, the equipment can simultaneously cut the internal threads of the nut while grinding the exterior, eliminating the need for additional processing steps and improving nut processing efficiency. Moreover, the grinding thickness can be precisely controlled according to requirements during processing, enhancing the practical application effect of the equipment.

[0050] Furthermore, after grinding, the adjusting motor 205 can be directly controlled to turn the adjusting disc 206 to rotate. The adjusting disc 206 can control the rotating of the mounting disc 202 in contact with it, and the grinding wheel 201 rotates synchronously until the grinding wheel 201 is perpendicular to the nut. At this time, the mounting cover 5 is controlled to rotate, and the grinding wheel 201 can continuously roll on the nut surface, synchronously driving the multiple polishing claws 203 on both sides to rotate synchronously. The multiple polishing claws 203 can contact the nut surface under the action of the built-in spring 204 to polish the nut surface. By controlling the movement of the mounting cover 5, the polishing area can be changed. Through this design, the angle of the grinding wheel 201 can be adjusted after the nut is ground, so that the synchronous polishing treatment of the ground nut surface can be achieved, which improves the gloss of the nut surface. The operation is simple and quick, further improving the application effect of the equipment.

[0051] The filter assembly 15 includes a filter plate 151 and a threaded sleeve shaft 152. The threaded sleeve shaft 152 is horizontally fixed inside the inner groove 17. The filter plate 151 is slidably installed on the outside of the threaded sleeve shaft 152. A through hole 155 is provided at the middle position of the filter plate 151. The center line of the thread cutting tool 133 coincides with the center line of the through hole 155. Two rotating holes are provided on one side of the outer wall of the filter plate 151. A rotating shaft 154 is rotatably installed in each of the two rotating holes. Multiple dispersing blades 153 are fixedly installed on the outside of the rotating shaft 154. A side shell 24 is fixedly installed at one end of the mounting cover 5. A nut guide 16 is provided at the center position of the side shell 24. A control panel 3 is installed on the outside of the control box 4 via a hinge.

[0052] The specific implementation method is as follows: When the thread cutting tool 133 cuts the thread of the nut, the chips generated by the cutting can be discharged through the chip groove outside the thread cutting tool 133. These large chips can be blocked on one side by the filter component 15. Some small chips can enter the grinding component 20 through the filter component 15 and mix with the small chips generated by the grinding component 20 when grinding the nut. When the outer cover 5 is rotated, the filter component 15 can rotate synchronously. The dispersing blades 153 on it can rotate under the action of centrifugal force. The dispersing blades 153 can disperse these small particles. The dispersed particles can cooperate with the grinding wheel 201 to perform shot blasting grinding on the nut, which further improves the grinding effect of the nut. The rotating dispersing blades 153 can also achieve airflow disturbance, which plays a certain role in processing cooling and heat dissipation, greatly improving the overall application effect of the equipment.

[0053] A T-groove 19 is provided on one side of the mounting cover 5. A storage groove is provided inside the T-groove 19. A positioning plate 18 is movably installed in the storage groove by a compression spring 21. A protrusion 23 is fixedly installed on one side of the outer wall of the positioning plate 18. The bottom end of the positioning plate 18 is inserted into a slot provided on the upper surface of the positioning strip 134.

[0054] The specific implementation method is as follows: When installing the thread cutting assembly 13, the thread cutting assembly 13 is inserted into the mounting cover 5 through the T-slot 19, so that one end of the positioning plate 18 is engaged in the slot provided on the upper surface of the positioning strip 134, thus completing the positioning of the thread cutting assembly 13. When disassembling the thread cutting assembly 13, the positioning plate 18 is moved upward directly, and the thread cutting assembly 13 can be pushed out by the action of multiple side springs 132, thus completing the disassembly of the thread cutting assembly 13. The corresponding thread cutting tool 133 can be quickly replaced according to the internal thread cutting specifications of the nut.

[0055] This design enables the quick assembly and disassembly of the thread cutting component 13, allowing the equipment to cut various types of nut inner holes, greatly improving the equipment's application effect and processing versatility.

[0056] Working principle: During nut grinding, the nut is first clamped and installed inside the multi-point positioning clamping module 6. The height of the multi-point positioning clamping module 6 is adjusted so that the center line of the nut coincides with the center line of the mounting cover 5. At this time, the adjusting motor 2 is directly turned on to drive the adjusting stud 12 to rotate. The adjusting stud 12 can drive the mounting plate 9 and the moving block 11 to move synchronously, and the mounting cover 5 to move synchronously. When one end of the nut enters the nut guide 16, the electric push rod 2012 is activated to adaptively control the movement of the grinding wheel 201, so that the grinding wheel 201 is in contact with the outer surface of the nut and rolls on the outer surface. At this time, the grinding wheel 201 and the grinding nut are parallel to each other. The drive motor 10 is then turned on. The entire mounting cover 5 rotates, and the two sets of grinding components 20 can rotate synchronously with the mounting cover 5. At this time, the grinding wheel 201 can rub against the nut and grind the outer surface of the nut. During this process, the grinding wheel 201 can grind other parts of the nut by controlling the displacement of the mounting cover 5. The grinding wheel 201 can be slowly displaced by the electric push rod 2012 according to the grinding thickness to achieve the change of grinding thickness. While the mounting cover 5 rotates and moves, the thread cutting component 13 rotates and moves synchronously. At this time, the thread cutting tool 133 can contact the center area of ​​the nut to achieve thread cutting treatment of the center of the nut.

[0057] After grinding is completed, the adjusting motor 205 can be directly controlled to turn the adjusting plate 206 to rotate. The adjusting plate 206 can control the mounting plate 202 in contact with it to rotate, and the grinding wheel 201 rotates synchronously until the grinding wheel 201 is perpendicular to the nut. At this time, the mounting cover 5 is controlled to rotate. The grinding wheel 201 can roll continuously on the surface of the nut, synchronously driving the multiple polishing claws 203 on both sides to rotate synchronously. The multiple polishing claws 203 can contact the surface of the nut under the action of the built-in spring 204 to polish the surface of the nut. The polishing area can be changed by controlling the movement of the mounting cover 5.

[0058] When the thread cutting tool 133 cuts the nut thread, the chips produced can be discharged through the chip groove outside the thread cutting tool 133. These large chips can be blocked on one side by the filter assembly 15. Some small chips can enter the grinding assembly 20 through the filter assembly 15 and mix with the small chips produced by the grinding assembly 20 when grinding the nut. When the outer cover 5 rotates, the filter assembly 15 can rotate synchronously. The dispersing blades 153 on it can rotate under the action of centrifugal force. The dispersing blades 153 can disperse these small particles. The dispersed particles can cooperate with the grinding wheel 201 to perform shot blasting grinding on the nut, which further improves the grinding effect of the nut. The rotating dispersing blades 153 can also achieve airflow disturbance, which plays a certain role in processing cooling and heat dissipation.

[0059] When installing the thread cutting assembly 13, simply insert the thread cutting assembly 13 into the mounting cover 5 through the T-slot 19, so that one end of the positioning plate 18 is engaged in the slot provided on the upper surface of the positioning strip 134, thus completing the positioning of the thread cutting assembly 13. When disassembling the thread cutting assembly 13, simply move the positioning plate 18 upwards, and the thread cutting assembly 13 can be pushed out by the action of multiple side springs 132, thus completing the disassembly of the thread cutting assembly 13. The corresponding thread cutting tool 133 can be quickly replaced according to the internal thread cutting specifications of the nut.

[0060] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-precision ball screw nut grinding device, comprising a base (1) and a multi-point positioning clamping module (6), characterized in that: The top surface of the base (1) is provided with a stroke groove (8). An adjustment motor (2) is fixedly installed on one side of the outer wall of the base (1). An adjustment stud (12) is fixedly installed at one end of the output shaft of the adjustment motor (2). A moving block (11) is installed on the external thread of the adjustment stud (12). The moving block (11) is slidably installed inside the stroke groove (8). An installation plate (9) is fixedly installed at the top of the moving block (11). A drive motor (10) is fixedly installed inside the installation plate (9). An installation cover (5) is fixedly installed at one end of the output shaft of the drive motor (10). A control box (4) and a telescopic frame (7) are fixedly installed on the top surface of the base (1). A multi-point positioning clamping module (6) is provided on one side of the telescopic frame (7). The mounting cover (5) has mounting grooves (22) on both the top and bottom surfaces. A grinding component (20) is installed inside the mounting groove (22). The grinding component (20) is used for grinding the outer surface of the nut. A guide rail (14) is fixedly installed inside the mounting cover (5). A thread cutting component (13) is slidably installed on the guide rail (14). The thread cutting component (13) is used for thread cutting inside the nut. An inner groove (17) is provided on the inner wall of both the top and bottom surfaces of the mounting cover (5). A filter component (15) is movably installed inside the inner groove (17). The filter component (15) is used for filtering and blocking the debris discharged when cutting the inner thread hole of the nut. The grinding assembly (20) includes a base plate (2010), which is fixedly installed inside the mounting groove (22). An electric push rod (2012) is fixedly installed on the top surface of the base plate (2010). An assembly plate (2011) is fixedly installed at one end of the output shaft of the electric push rod (2012). A rotating groove (209) is provided inside the assembly plate (2011). The rotating groove (209) is rotatably mounted with a mounting plate (202) having an outer rotating rib. An adjusting motor (205) is fixedly mounted on the outer surface of the assembly plate (2011). An adjusting plate (206) is fixedly mounted on one end of the output shaft of the adjusting motor (205). The adjusting plate (206) is in rolling connection with the outer surface of the mounting plate (202). Two wheel frames are fixedly installed on the top surface of the mounting plate (202). A grinding wheel (201) is rotatably installed between the two wheel frames through a central wheel shaft (208). Multiple mounting shells (207) are fixedly installed on the outer sides of the central wheel shaft (208). Polishing claws (203) are movably installed inside the mounting shells (207) through built-in springs (204). One end of the polishing claws (203) is located on the outer side of the mounting shells (207). The thread cutting assembly (13) includes an insertion plate (131), which is slidably mounted on a guide rail (14) via a groove provided at its bottom. Multiple side springs (132) are fixedly installed on one side of the outer wall of the insertion plate (131), and one end of the multiple side springs (132) is in close contact with and squeezed against one side of the inner wall of the mounting cover (5).

2. The high-precision ball screw nut grinding device according to claim 1, characterized in that, The insertion plate (131) has a mounting screw hole at its center, and a thread cutting tool (133) is installed in the mounting screw hole. A chip removal groove is provided on the outer surface of the thread cutting tool (133). A locking strip (134) is fixedly installed on one side of the outer wall of the insertion plate (131).

3. The high-precision ball screw nut grinding device according to claim 2, characterized in that, A T-groove (19) is provided on one side of the mounting cover (5). A storage groove is provided inside the T-groove (19). A positioning plate (18) is movably installed in the storage groove by a downward spring (21). A protrusion (23) is fixedly installed on one side of the outer wall of the positioning plate (18). The bottom end of the positioning plate (18) is inserted into the slot provided on the upper surface of the positioning strip (134).

4. The high-precision ball screw nut grinding device according to claim 3, characterized in that, The filter assembly (15) includes a filter plate (151) and a threaded sleeve shaft (152). The threaded sleeve shaft (152) is horizontally fixed inside the inner groove (17). The filter plate (151) is slidably installed on the outside of the threaded sleeve shaft (152). A through hole (155) is provided at the middle position of the filter plate (151).

5. A high-precision ball screw nut grinding device according to claim 4, characterized in that, The centerline of the thread cutting tool (133) coincides with the centerline of the through hole (155). Two rotating holes are provided on one side of the outer wall of the filter plate (151), and a rotating shaft (154) is rotatably installed in each of the two rotating holes.

6. The high-precision ball screw nut grinding device according to claim 5, characterized in that, Multiple dispersing blades (153) are fixedly installed on the outside of the rotating shaft (154). A side shell (24) is fixedly installed on one end of the mounting cover (5). A nut guide (16) is provided at the center of the side shell (24). A control panel (3) is installed on the outside of the control box (4) via a hinge.

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