Floating tool rest for ball screw thread raceway grinding machine tool

Abstract

The utility model provides a floating tool rest for a ball screw thread raceway grinding machine tool, and relates to the technical field of grinding machine tools, the floating tool rest comprises a base and two grinding tool bodies, the top of the base is fixedly connected with a limiting rod, the outer surface of the limiting rod is provided with a ball body, the outer surface of the ball body is fixedly connected with a rotating shaft, and the rotating shaft is fixedly connected with the base. And the outer surface of the rotating shaft is fixedly connected with a fixed block. According to the ball screw grinding tool, when the ball screw is clamped and fixed through the fixing block, the rotating pin, the threaded rod, the clamping block and the grinding tool body, the clamping force of the grinding tool body on the ball screw can be guaranteed through matched use of an alarm, a storage battery, a micro pressure sensor, an abutting rod and a supporting rod, and too tight or too loose clamping is avoided; and then the ball screw rotates to drive the grinding tool body to move, so that fines on the ball screw are removed through the grinding tool body, and the using precision of the ball screw is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding machine tools, in particular to a floating tool holder for a ball screw thread raceway grinding machine tool. Background Art

[0002] Ball screw is a high-precision transmission device widely used in CNC machine tools, automobiles, aviation and other fields. Its main function is to convert rotational motion into linear motion, or convert torque into axial repetitive force. It has the characteristics of high precision, high rigidity, high repeatability and low friction resistance.

[0003] In the prior art, after the ball screw is produced, tiny machining chips adhere to the surface of the ball screw thread raceway. The chips attached to the raceway surface will not only cause the balls to rub against these chips during the rolling process, thereby increasing the wear of the balls, shortening their service life, and reducing the overall fitting accuracy. Therefore, a floating tool holder for a ball screw thread raceway grinding machine is proposed. Summary of the Invention

[0004] The purpose of the utility model is to solve the problem in the prior art that after the ball screw is produced, tiny processing chips adhere to the surface of the ball screw thread raceway. The chips attached to the raceway surface will not only cause the balls to rub against these chips during the rolling process, thereby increasing the wear of the balls, shortening their service life, and reducing the overall fitting accuracy. Therefore, a floating tool holder for a ball screw thread raceway grinding machine is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a floating tool holder for a ball screw thread raceway grinding machine, comprising: a base and two grinding tool bodies, the top of the base is fixedly connected to a limiting rod, the outer surface of the limiting rod is provided with a ball body, the outer surface of the ball body is fixedly connected to a rotating shaft, the outer surface of the rotating shaft is fixedly connected to a fixed block, both ends of the outer surface of the fixed block are rotatably connected to clamping blocks through screws, the outer surface of one of the clamping blocks is fixedly connected to a support rod near the left side, and the position of the clamping block near the support rod is fixedly connected to a battery and an alarm in turn, a micro pressure sensor is fixedly provided at one end of the support rod, the outer surface of the other clamping block is fixedly connected to a resistance rod, the inner surfaces of the two clamping blocks are provided with rotating pins, and a threaded rod is provided between the inner surfaces of the two rotating pins.

[0006] Preferably, the position of the abutment rod matches the position of the micro pressure sensor, and the two clamping blocks are matched with the two grinding tool bodies.

[0007] Preferably, a first threaded hole is provided on the outer surfaces of the two clamping blocks near the right side, and a second threaded hole is provided on the outer surfaces of the two grinding tool bodies.

[0008] Preferably, the inner surfaces of the two first threaded holes are threadedly connected with bolts, and the two bolts are matched with the two second threaded holes.

[0009] Preferably, a first driving assembly is provided at a position near the left side of the bottom of the base, and a first clamping assembly is threadedly connected to the outer surface of the first driving assembly.

[0010] Preferably, a second driving assembly is provided at a position near the right side of the bottom of the base, and an output end of the second driving assembly is fixedly connected to a second clamping assembly.

[0011] Preferably, the limiting rod is matched with the first driving assembly.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] 1. In the present invention, when the ball screw is clamped and fixed by the fixed block, rotating pin, threaded rod, clamping block and mold body, the alarm, battery, micro pressure sensor, resistance rod and support rod are used in conjunction to ensure the clamping force of the mold body on the ball screw, avoiding excessive clamping or loosening. Then the ball screw rotates, driving the mold body to move, so that fine chips on the ball screw are removed by the mold body, ensuring the accuracy of the ball screw.

[0014] 2. In the present invention, the clamping block, the bolt, the first threaded hole and the second threaded hole are used in combination to facilitate the disassembly and installation of the mold body, thereby making the maintenance and replacement of the mold body more convenient and having higher practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a floating tool holder for a ball screw thread raceway grinding machine tool is provided in the utility model;

[0016] Figure 2 This is a partial structural diagram of a floating tool holder for a ball screw thread raceway grinding machine tool proposed in the utility model;

[0017] Figure 3 This is a partial structural diagram of a floating tool holder for a ball screw thread raceway grinding machine tool proposed in the utility model;

[0018] Figure 4 The present invention provides a schematic diagram of a partial structure of a floating tool holder for a ball screw thread raceway grinding machine from another angle.

[0019] Legend: 1. Limit rod; 2. Ball body; 3. Rotating shaft; 4. Screw; 5. Fixed block; 6. Rotating pin; 7. Threaded rod; 8. Bolt; 9. First threaded hole; 10. Second threaded hole; 11. Mold body; 12. Clamping block; 13. Battery; 14. Alarm; 15. Support rod; 16. Micro pressure sensor; 17. Resistance rod; 18. First drive assembly; 19. First clamping assembly; 20. Second drive assembly; 21. Second clamping assembly; 22. Base. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1, as Figures 1-4 As shown, the utility model provides a floating tool holder for a ball screw thread raceway grinding machine, comprising: a base 22 and two grinding tool bodies 11, the top of the base 22 is fixedly connected to a limit rod 1, the outer surface of the limit rod 1 is provided with a ball body 2, the outer surface of the ball body 2 is fixedly connected to a rotating shaft 3, the outer surface of the rotating shaft 3 is fixedly connected to a fixed block 5, both ends of the outer surface of the fixed block 5 are rotatably connected to clamping blocks 12 through screws 4, the outer surface of one of the clamping blocks 12 is fixedly connected to a support rod 15 near the left side, and the position of the clamping block 12 near the support rod 15 is fixedly connected to a battery 13 and an alarm 14 in sequence, and one end of the support rod 15 is fixedly provided with a micro pressure sensor 16. The outer surface of the other clamping block 12 is fixedly connected to a resistance rod 17, and the inner surfaces of the two clamping blocks 12 are provided with a rotating pin 6. A threaded rod 7 is provided between the inner surfaces of the two rotating pins 6. The position of the resistance rod 17 matches the position of the micro pressure sensor 16. The two clamping blocks 12 are matched with the two mold bodies 11. A first drive component 18 is provided at the bottom of the base 22 near the left side, and the outer surface of the first drive component 18 is threadedly connected to the first clamping component 19. A second drive component 20 is provided at the bottom of the base 22 near the right side, and the output end of the second drive component 20 is fixedly connected to the second clamping component 21. The limit rod 1 is matched with the first drive component 18.

[0023] The effect achieved by the entire embodiment 1 is that the micro pressure sensor 16 and the alarm 14 are electrically connected to the external controller, and a pressure threshold is set for the micro pressure sensor 16. The alarm 14 and the micro pressure sensor 16 can be powered by the battery 13. When in use, the bottom of the ball screw is placed vertically along the second clamping assembly 21, and then the first drive assembly 18 is started to move the first clamping assembly 19 downward to clamp the top of the ball screw. Then, by rotating the threaded rod 7, with the cooperation of the rotating pin 6 and the screw pin 4, the two clamping blocks 12 are moved along the fixed block 5, so that the two mold bodies 11 clamp the ball screw and ensure that the threaded protrusions of the mold body 11 are aligned with the raceway of the ball screw. At the same time, when the two clamping blocks 12 are moving, they will drive The resistance rod 17 collides with the support rod 15, so that the micro pressure sensor 16 is subjected to an extrusion force. When the specified pressure threshold is reached, the micro pressure sensor 16 transmits an electrical signal to the controller, which receives and processes it, and activates the alarm 14 to remind the staff to stop rotating the threaded rod 7, so as to ensure the clamping force of the mold body 11 on the ball screw and avoid clamping too tight or too loose. When the fixation is completed, the second drive assembly 20 can be started to drive the ball screw to rotate on the first clamping assembly 19 and the second clamping assembly 21, and with the cooperation of the limit rod 1, the ball body 2 and the rotating shaft 3, the mold body 11 will move on the ball screw through the internal threaded protrusion, thereby removing fine chips on the ball screw through the mold body 11 to ensure the accuracy of the ball screw.

[0024] Example 2, as Figures 1-4 As shown, the outer surfaces of the two clamping blocks 12 are provided with first threaded holes 9 near the right side, the outer surfaces of the two mold bodies 11 are provided with second threaded holes 10, the inner surfaces of the two first threaded holes 9 are threadedly connected with bolts 8, and the two bolts 8 are matched with the two second threaded holes 10.

[0025] The effect achieved by the entire embodiment 2 is that when the mold body 11 needs to be maintained or replaced, the bolt 8 can be rotated to rotate in the first threaded hole 9 inside the clamping block 12, so that the bolt 8 is disengaged from the second threaded hole 10, and then the mold body 11 can be removed from the clamping block 12 for replacement or maintenance. When installation is required, the mold body 11 is placed along the clamping block 12, and the second threaded hole 10 is aligned with the bolt 8, and then the bolt 8 is screwed into the second threaded hole 10 for quick installation, which facilitates the replacement and maintenance of the mold body 11.

[0026] Working principle: When in use, the bottom of the ball screw is placed vertically along the second clamping assembly 21, and then the first driving assembly 18 is started, so that the first clamping assembly 19 moves downward to clamp the top of the ball screw, and then by rotating the threaded rod 7, with the cooperation of the rotating pin 6 and the screw pin 4, the two clamping blocks 12 are moved along the fixed block 5, so that the two mold bodies 11 clamp the ball screw and ensure that the threaded protrusions of the mold body 11 are aligned with the raceway of the ball screw. At the same time, when the two clamping blocks 12 are moving, they will drive the interference rod 17 and the support rod 15 to collide, so that the micro pressure sensor 16 is subjected to extrusion force. When the specified pressure threshold is reached, the micro pressure sensor 16 will transmit an electrical signal to the controller, which receives and processes it, and activates the alarm 14 to remind the staff to stop rotating the threaded rod 7, to ensure the clamping force of the mold body 11 on the ball screw, and avoid clamping too tight or too loose. When the fixed After completion, the second driving assembly 20 can be started to drive the ball screw to rotate on the first clamping assembly 19 and the second clamping assembly 21, and with the cooperation of the limit rod 1, the ball body 2 and the rotating shaft 3, the mold body 11 will move on the ball screw through the internal threaded protrusion, so that the fine chips on the ball screw are removed by the mold body 11 to ensure the accuracy of the ball screw. When the mold body 11 needs to be maintained or replaced, the bolt 8 can be rotated to rotate in the first threaded hole 9 inside the clamping block 12, so that the bolt 8 is disengaged from the second threaded hole 10, and then the mold body 11 can be removed from the clamping block 12 for replacement or maintenance. When installation is required, the mold body 11 is placed along the clamping block 12, and the second threaded hole 10 is aligned with the bolt 8, and then the bolt 8 is screwed into the second threaded hole 10 for quick installation, which is convenient for replacement and maintenance of the mold body 11.

[0027] The wiring diagram of the micro pressure sensor 16, the first drive assembly 18, the second drive assembly 20 and the alarm 14 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the micro pressure sensor 16, the first drive assembly 18, the second drive assembly 20 and the alarm 14 will not be explained in detail.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A floating tool holder for a ball screw thread raceway grinding machine, characterized in that: include: A base (22) and two mold bodies (11), the top of the base (22) is fixedly connected to a limit rod (1), the outer surface of the limit rod (1) is provided with a ball body (2), the outer surface of the ball body (2) is fixedly connected to a rotating shaft (3), the outer surface of the rotating shaft (3) is fixedly connected to a fixed block (5), both ends of the outer surface of the fixed block (5) are rotatably connected to clamping blocks (12) through screws (4), the outer surface of one of the clamping blocks (12) is fixedly connected to a support rod (15) near the left side, and the position of the clamping block (12) near the support rod (15) is fixedly connected to a battery (13) and an alarm (14) in sequence, one end of the support rod (15) is fixedly provided with a micro pressure sensor (16), the outer surface of the other clamping block (12) is fixedly connected to a resistance rod (17), the inner surfaces of the two clamping blocks (12) are provided with a rotating pin (6), and a threaded rod (7) is provided between the inner surfaces of the two rotating pins (6).

2. The floating tool holder for ball screw thread raceway grinding machine according to claim 1, characterized in that: The position of the resisting rod (17) matches the position of the micro pressure sensor (16), and the two clamping blocks (12) are both matched with the two grinding tool bodies (11).

3. The floating tool holder for a ball screw thread raceway grinding machine according to claim 2, characterized in that: A first threaded hole (9) is provided on the outer surfaces of the two clamping blocks (12) at positions close to the right side, and a second threaded hole (10) is provided on the outer surfaces of the two grinding tool bodies (11).

4. The floating tool holder for a ball screw thread raceway grinding machine according to claim 3, characterized in that: The inner surfaces of the two first threaded holes (9) are both threadedly connected with bolts (8), and the two bolts (8) are matched with the two second threaded holes (10).

5. The floating tool holder for a ball screw thread raceway grinding machine according to claim 4, characterized in that: A first drive assembly (18) is provided at a position close to the left side of the bottom of the base (22), and a first clamping assembly (19) is threadedly connected to the outer surface of the first drive assembly (18).

6. The floating tool holder for a ball screw thread raceway grinding machine according to claim 5, characterized in that: A second drive assembly (20) is provided at a position close to the right side of the bottom of the base (22), and an output end of the second drive assembly (20) is fixedly connected to a second clamping assembly (21).

7. The floating tool holder for a ball screw thread raceway grinding machine according to claim 6, characterized in that: The limiting rod (1) and the first driving assembly (18) are arranged in a matching manner.

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