Vertical internal thread grinding machine

Abstract

The vertical internal thread grinding machine comprises a machining machine body, a planet ball screw nut blank and a fixing frame fixedly installed on the machining machine body, a material rotating and fixing mechanism is arranged at the center position of the bottom in the fixing frame, and a grinding mechanism is arranged at the top in the fixing frame; and the material rotating and fixing mechanism comprises a rotating disc rotationally connected to the inner bottom of the fixing frame, and a mounting groove is formed in the inner bottom of the fixing frame. Under the interaction of the machining bed body, the planet ball screw nut original blank, the fixing frame, the material rotating and fixing mechanism and the grinding mechanism, the material rotating and fixing mechanism can stably clamp workpieces of different sizes; the stability and concentricity during machining are ensured, the machining precision is improved, the position of the grinding mechanism can be flexibly adjusted, the machining requirements of various internal threads are met, the machining efficiency is improved, meanwhile, a perfect impurity removal system can clean impurities in time, it is guaranteed that the machining environment is clean, the service life of equipment is prolonged, and high-quality and high-efficiency internal thread grinding machining is integrally guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing equipment, in particular to a vertical internal thread grinder. Background Art

[0002] Planetary ball screws and nuts are high-precision transmission components and are widely used in CNC machine tools, automation equipment and other fields. They have high transmission efficiency and accurate positioning accuracy, which can ensure the stable operation and precise control of the equipment. The internal thread processing of planetary ball screw nuts is difficult and has extremely high requirements for processing equipment and technology.

[0003] At present, traditional internal thread processing equipment has many problems when processing planetary ball screw nuts. Among them, it is difficult to ensure the stability and concentricity of the workpiece when clamping the workpiece, resulting in the difficulty in meeting the processing accuracy requirements; in addition, the adjustment flexibility of the grinding mechanism is insufficient, and it cannot accurately adapt to the internal thread processing needs of different specifications, which may also cause unstable product quality. Therefore, we proposed a vertical internal thread grinder to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the above-mentioned background technology and to propose a vertical internal thread grinding machine.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A vertical internal thread grinding machine comprises a processing bed, a planetary ball screw nut blank and a fixed frame fixedly mounted on the processing bed, a material transfer mechanism is arranged at the center of the bottom of the fixed frame, and a grinding mechanism is arranged at the top of the fixed frame;

[0007] The solid material transfer mechanism comprises a rotating disk rotatably connected to the bottom of a fixed frame, a mounting groove is provided in the bottom of the fixed frame, a driving motor is fixedly installed in the bottom of the mounting groove, the rotating disk is fixedly sleeved on the output shaft of the driving motor, a fixed disk is fixedly installed on the top of the rotating disk, a plurality of slide grooves are provided on the top of the fixed disk, a clamping block is slidably connected to the inner side wall of the slide groove, and a moving component capable of moving a plurality of clamping blocks is provided in the fixed disk;

[0008] The grinding mechanism includes a limiting cylinder fixedly installed on the top of a fixed frame, a cylinder fixedly installed on the top of the limiting cylinder, a moving block fixedly installed on the piston end of the cylinder and sliding with the inner wall of the limiting cylinder, a fixing groove is provided at the bottom of the moving block, two first threaded rods are rotatably connected on the inner wall of the fixing groove, a servo motor is fixedly installed on the inner wall of the fixing groove, gears are fixedly sleeved on the output shaft of the servo motor and the first threaded rod, the gear located in the middle and the gears located on both sides are meshed and connected, the same cross block is threadedly sleeved on the two first threaded rods, an installation opening is provided at the bottom of the cross block, a grinding rod is slidably connected to the inner wall of the installation opening, a grinding head is fixedly installed at the end of the grinding rod, and the grinding rod and the cross block are fixedly connected by fixing bolts.

[0009] Preferably, a debris storage hole is provided at the center of the top of the fixed disk, a debris discharge hole connected to the debris storage hole is provided on the outer wall of the fixed disk, an anti-overflow ring block is fixedly installed at the bottom of the fixed frame, and a plurality of debris discharge ports are provided at the bottom of the fixed frame.

[0010] Preferably, the moving assembly consists of a plurality of second threaded rods, a plurality of bevel gears, a rotating rod and a rotating handle, the second threaded rod is rotatably connected to the inner wall of the slide groove, the clamping block is threadedly sleeved on the outer wall of the second threaded rod, the bevel gear is fixedly sleeved on the second threaded rod, two adjacent bevel gears are meshed and connected, the rotating rod is rotatably connected to the outer wall of the fixed plate, the end of the rotating rod is fixedly connected to one of the ends of the second threaded rod, and the rotating handle is fixedly sleeved on the outer wall of the rotating rod.

[0011] Preferably, a second threaded hole matched with the second threaded rod is formed on the outer side wall of the clamping block, and the outer side wall of the second threaded rod and the inner side wall of the second threaded hole are threadedly connected.

[0012] Preferably, a plurality of sliding limiting grooves are provided on the outer side wall of the clamping block.

[0013] Preferably, a plurality of the slide grooves are distributed on the top of the fixed plate in a circular array.

[0014] Preferably, the rotating disk, the fixed disk and the limiting cylinder are coaxially arranged.

[0015] Preferably, two first threaded holes which are compatible with the first threaded rods are formed on the outer side wall of the transverse block, and the outer side wall of the first threaded rod and the inner side wall of the first threaded hole are threadedly connected on the same layer.

[0016] Preferably, a reinforcing mechanism is provided at the bottom of the cross block, and the reinforcing mechanism includes a reinforcing plate fixedly installed at the bottom of the cross block, a limiting groove is opened on the outer wall of the reinforcing plate, the outer wall of the grinding rod and the inner wall of the limiting groove are embedded in each other, and the grinding rod and the reinforcing plate are fixedly connected by two reinforcing bolts.

[0017] Preferably, the outer side walls of the grinding rod and the reinforcement plate are each provided with two reinforcement holes, and the outer side walls of the reinforcement bolts and the inner side walls of the reinforcement holes on the same layer are slidably connected.

[0018] The beneficial effects of the present invention are:

[0019] Under the interaction of the processing bed, planetary ball screw nut blank, fixed frame, solid material transfer mechanism and grinding mechanism, the solid material transfer mechanism can stably clamp workpieces of different sizes, ensure stability and concentricity during processing, and improve processing accuracy. The grinding mechanism can flexibly adjust its position to meet various internal thread processing needs and improve processing efficiency. At the same time, the perfect impurity removal system can clean up impurities in time, ensure a clean processing environment, extend the service life of the equipment, and overall ensure high-quality and efficient internal thread grinding.

[0020] Under the interaction of the machining bed, the planetary ball screw nut blank, the fixing frame, the grinding mechanism and the reinforcing mechanism, the reinforcing mechanism at the bottom of the grinding rod can greatly enhance the stability of the grinding rod by the engagement of the reinforcing plate with the grinding rod and the tightening of the reinforcing bolts, effectively preventing the grinding rod from loosening and shifting due to vibration during high-speed grinding, thereby ensuring the stability and high precision of the machining. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the vertical internal thread grinding machine proposed by the present invention;

[0022] Figure 2 for Figure 1 A magnified view of the structure at center;

[0023] Figure 3 for Figure 1 A magnified view of the structure at B in the middle;

[0024] Figure 4 A top view of a plurality of clamping blocks in the vertical internal thread grinding machine proposed by the present invention;

[0025] Figure 5 A top sectional view of a slideway in a vertical internal thread grinder proposed by the present invention;

[0026] Figure 6 It is a front view of the limiting groove in the vertical internal thread grinding machine proposed by the present invention.

[0027] In the figure: 1. Processing bed; 2. Planetary ball screw nut blank; 3. Fixed frame; 4. Rotating disk; 5. Mounting groove; 6. Driving motor; 7. Fixed disk; 8. Slide groove; 9. Clamping block; 10. Limiting cylinder; 11. Cylinder; 12. Moving block; 13. Fixed groove; 14. First threaded rod; 15. Servo motor; 16. Cross block; 17. Mounting port; 18. Grinding rod; 19. Grinding head; 20. Fixed bolt; 21. Storage hole; 22. Discharge hole; 23. Anti-overflow ring block; 24. Discharge port; 25. Second threaded rod; 26. Bevel gear; 27. Rotating rod; 28. Rotating handle; 29. ​​Limiting slide groove; 30. Reinforcement plate; 31. Restriction groove; 32. Reinforcement bolt. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Reference Figure 1-6 A vertical internal thread grinding machine comprises a processing bed 1, a planetary ball screw nut blank 2 and a fixed frame 3 fixedly installed on the processing bed 1. A material transfer mechanism is arranged at the center position of the bottom of the fixed frame 3. The material transfer mechanism comprises a rotating disk 4 rotatably connected to the bottom of the fixed frame 3. A mounting groove 5 is arranged at the bottom of the fixed frame 3. A driving motor 6 is fixedly installed at the bottom of the mounting groove 5. The rotating disk 4 is fixedly sleeved on the output shaft of the driving motor 6. A fixed disk 7 is fixedly installed on the top of the rotating disk 4. A plurality of slide grooves 8 are arranged on the top of the fixed disk 7. A clamping block 9 is slidably connected to the inner wall of the slide groove 8. A moving component capable of moving a plurality of clamping blocks 9 is arranged in the fixed disk 7.

[0030] Further explanation: the rotating disk 4 rotatably connected to the bottom of the fixed frame 3 is driven by the driving motor 6 installed in the mounting groove 5 at the bottom of the fixed frame 3, so as to realize the rotation function, provide power for the rotation of the planetary ball screw nut blank 2 during the processing, and help to carry out all-round processing operations.

[0031] It is further explained that a plurality of slide grooves 8 are provided on the top of the fixed plate 7, and a clamping block 9 is slidably connected in the slide groove 8. The movement of the clamping block 9 can be controlled by a moving component, thereby achieving stable clamping of planetary ball screw nut blanks 2 of different sizes, thereby improving the versatility and adaptability of the equipment.

[0032] like Figure 1 As shown, a plurality of sliding limiting grooves 29 are provided on the outer side wall of the clamping block 9 .

[0033] It is further explained that the anti-slip groove 8 increases the friction between the clamping block 9 and the planetary ball screw nut blank 2, and can better prevent the planetary ball screw nut blank 2 from sliding when clamping the planetary ball screw nut blank 2, thereby further improving the stability of the clamping of the planetary ball screw nut blank 2.

[0034] like Figure 5 As shown, a plurality of slide grooves 8 are distributed on the top of the fixed plate 7 in a circular array.

[0035] It is further explained that the plurality of clamping blocks 9 can evenly clamp the planetary ball screw nut blank 2 from different directions, so that the planetary ball screw nut blank 2 is evenly stressed, which helps to improve the stability and reliability of the clamping.

[0036] like Figure 4 and Figure 5 As shown, the moving assembly consists of a plurality of second threaded rods 25, a plurality of bevel gears 26, a rotating rod 27 and a rotating handle 28. The second threaded rod 25 is rotatably connected to the inner wall of the slide groove 8, the clamping block 9 is threadedly sleeved on the outer wall of the second threaded rod 25, the bevel gear 26 is fixedly sleeved on the second threaded rod 25, two adjacent bevel gears 26 are meshed and connected, the rotating rod 27 is rotatably connected to the outer wall of the fixed plate 7, the end of the rotating rod 27 is fixedly connected to one of the ends of the second threaded rods 25, and the rotating handle 28 is fixedly sleeved on the outer wall of the rotating rod 27.

[0037] It is further explained that this structural design can realize the synchronous control of multiple clamping blocks 9, ensuring that the clamping force in all directions is evenly distributed when clamping the planetary ball screw nut blank 2, thereby improving the stability and reliability of clamping the planetary ball screw nut blank 2 and avoiding processing errors caused by uneven clamping.

[0038] like Figure 4 As shown, a second threaded hole matched with the second threaded rod 25 is opened on the outer wall of the clamping block 9, and the outer wall of the second threaded rod 25 and the inner wall of the second threaded hole are threadedly connected.

[0039] It is further explained that such a design ensures the threaded connection between the second threaded rod 25 and the clamping block 9, ensures the precise driving of the clamping block 9 by the moving assembly, enables the clamping block 9 to move stably along the second threaded rod 25, and enhances the reliability of the structure.

[0040] like Figure 1 As shown, a debris storage hole 21 is opened at the center position of the top of the fixed disk 7, a debris discharge hole 22 connected to the debris storage hole 21 is opened on the outer wall of the fixed disk 7, an anti-overflow ring block 23 is fixedly installed at the bottom of the fixed frame 3, and a plurality of debris discharge ports 24 are opened at the bottom of the fixed frame 3.

[0041] It is further explained that the debris collection hole 21 and the debris discharge hole 22 connected to the debris collection hole 21, as well as the anti-overflow ring block 23 and multiple debris discharge ports 24 at the bottom of the fixed frame 3, together constitute a debris discharge system, which can collect and discharge impurities generated during the grinding process, prevent impurities from accumulating in the processing area, avoid impurities from having an adverse effect on processing accuracy and equipment operation, ensure the cleanliness of the processing environment, extend the service life of the equipment, and also help to improve the processing quality.

[0042] like Figure 1 As shown, a grinding mechanism is provided at the top of the fixed frame 3, and the grinding mechanism includes a limiting cylinder 10 fixedly installed at the top of the fixed frame 3, a cylinder 11 is fixedly installed at the top of the limiting cylinder 10, a moving block 12 sliding with the inner wall of the limiting cylinder 10 is fixedly installed at the piston end of the cylinder 11, a fixing groove 13 is provided at the bottom of the moving block 12, two first threaded rods 14 are rotatably connected on the inner wall of the fixing groove 13, a servo motor 15 is fixedly installed on the inner wall of the fixing groove 13, gears are fixedly sleeved on the output shaft of the servo motor 15 and the first threaded rods 14, the gear located in the middle and the gears located on both sides are meshed and connected, the same cross block 16 is threadedly sleeved on the two first threaded rods 14, a mounting opening 17 is provided at the bottom of the cross block 16, a grinding rod 18 is slidably connected to the inner wall of the mounting opening 17, a grinding head 19 is fixedly installed at the end of the grinding rod 18, and the grinding rod 18 and the cross block 16 are fixedly connected by fixing bolts 20.

[0043] To further illustrate, the cylinder 11 at the top of the limit cylinder 10 can push the moving block 12 at the piston end to move up and down, so as to adjust the position of the grinding head 19 in the vertical direction to meet the requirements of different processing depths. When the servo motor 15 drives the gear to drive the first threaded rod 14 to rotate, the cross block 16 can move in the horizontal direction, which is convenient for adjusting the horizontal position of the grinding head 19, thereby increasing the flexibility of the position adjustment of the grinding head 19, the grinding rod 18 and the grinding head 19, and facilitating the replacement and maintenance of the grinding rod 18 and the grinding head 19. According to different internal thread processing requirements, the grinding rod 18 and the grinding head 19 of different specifications can be quickly replaced.

[0044] like Figure 1 As shown, the rotating disk 4, the fixed disk 7 and the limiting cylinder 10 are coaxially arranged.

[0045] It is further explained that the concentricity of the equipment is guaranteed during operation, vibration and eccentricity caused by different axes of different components are avoided, processing errors are reduced, and the processing accuracy and operation stability of the equipment are improved.

[0046] like Figure 3 As shown, two first threaded holes that can be matched with the first threaded rod 14 are opened on the outer wall of the cross block 16, and the outer wall of the first threaded rod 14 and the inner wall of the first threaded hole are threadedly connected.

[0047] It is further explained that the threaded connection between the first threaded rod 14 and the cross block 16 is ensured, ensuring that when the servo motor 15 drives the gear-driven first threaded rod 14 to rotate, the cross block 16 can move stably and accurately in the horizontal direction.

[0048] like Figure 1 and Figure 6 As shown, a reinforcing mechanism is provided at the bottom of the cross block 16, and the reinforcing mechanism includes a reinforcing plate 30 fixedly installed at the bottom of the cross block 16, a limiting groove 31 is opened on the outer wall of the reinforcing plate 30, the outer wall of the grinding rod 18 and the inner wall of the limiting groove 31 are embedded in each other, and the grinding rod 18 and the reinforcing plate 30 are fixedly connected by two reinforcing bolts 32.

[0049] Further, such a design increases the installation strength and stability of the grinding rod 18 on the cross block 16, prevents the grinding rod 18 from loosening or shifting due to factors such as vibration during high-speed grinding, and ensures the stability and safety of the grinding process.

[0050] like Figure 3 As shown, the outer side walls of the grinding rod 18 and the reinforcing plate 30 are each provided with two reinforcing holes, and the outer side walls of the reinforcing bolts 32 on the same layer are slidably connected with the inner side walls of the reinforcing holes.

[0051] It is further explained that such a design provides an accurate installation position for the reinforcing bolt 32, ensuring that the reinforcing bolt 32 can effectively fix the grinding rod 18 and the reinforcing plate 30 together, further improving the reliability and stability of the reinforcing mechanism.

[0052] The present invention can be explained by the following operation mode:

[0053] Clamping the planetary ball screw nut blank 2:

[0054] The rotating handle 28 is rotated to drive the rotating rod 27 to rotate, and the second threaded rod 25 at the end of the rotating rod 27 rotates accordingly. Through the bevel gear 26, the second threaded rods 25 in the plurality of slide grooves 8 on the fixed plate 7 rotate synchronously.

[0055] Since the clamping blocks 9 are threadedly sleeved on the second threaded rod 25, as the second threaded rod 25 rotates, multiple clamping blocks 9 move toward the center or outward along the slide groove 8. According to the size of the planetary ball screw nut blank 2, the positions of the clamping blocks 9 are adjusted so that the distance between them is slightly larger than the diameter of the blank.

[0056] Place the planetary ball screw nut blank 2 on the top of the fixed plate 7, turn the rotating handle 28 again to move the clamping block 9 to close contact with the blank, and use the limited sliding groove 29 on the outer side wall of the clamping block 9 to firmly clamp the blank.

[0057] Install the grinding rod 18 and the grinding head 19:

[0058] According to the processing requirements, a suitable grinding rod 18 and a grinding head 19 are selected, and the grinding rod 18 is inserted into the mounting opening 17 at the bottom of the horizontal block 16 so that the outer wall of the grinding rod 18 fits with the inner wall of the mounting opening 17 .

[0059] Use fixing bolts 20 to pass through corresponding holes on the grinding rod 18 and the cross block 16, tighten the fixing bolts 20, and fix the grinding rod 18 firmly on the cross block 16.

[0060] Install the reinforcement mechanism, fix the reinforcement plate 30 to the bottom of the cross block 16, make the outer wall of the grinding rod 18 fit into the limiting groove 31 on the reinforcement plate 30, then pass two reinforcement bolts 32 through the reinforcement holes on the grinding rod 18 and the reinforcement plate 30, tighten the reinforcement bolts 32, and further enhance the stability of the grinding rod 18.

[0061] Adjust the grinding mechanism position:

[0062] The cylinder 11 is started, and the piston end of the cylinder 11 pushes the moving block 12 to move up and down in the limiting cylinder 10. The moving block 12 is adjusted to a suitable height position according to the depth of grinding required for the blank.

[0063] The output shaft of the servo motor 15 is started to rotate forward, and the gear on the output shaft of the servo motor 15 drives the gears on the two first threaded rods 14 to rotate, so that the two first threaded rods 14 rotate synchronously.

[0064] Since the cross block 16 is threadedly sleeved on the two first threaded rods 14, as the first threaded rods 14 rotate, the cross block 16 moves horizontally in the fixed groove 13. According to the position of the internal thread of the original blank, the horizontal position of the cross block 16 is adjusted so that the grinding head 19 at the end of the grinding rod 18 is aligned with the internal thread processing part of the original blank.

[0065] Start processing:

[0066] After everything is ready, the driving motor 6 is started, and the driving motor 6 drives the rotating disk 4 to rotate, thereby causing the fixed disk 7 and the planetary ball screw nut blank 2 fixed on the fixed disk 7 to start rotating.

[0067] At this time, the grinding head 19 also starts to work and grinds the internal thread of the rotating planetary ball screw nut blank 2. During the processing, the position of the grinding mechanism can be fine-tuned by the positive and negative rotation of the cylinder 11 and the servo motor 15 output shaft according to actual conditions to ensure smooth grinding work.

[0068] Cleaning operation:

[0069] During the grinding process, the impurities generated are collected through the impurity storage hole 21 at the top center of the fixed plate 7 and then discharged through the impurity discharge hole 22 connected to the impurity storage hole 21 .

[0070] The anti-overflow ring block 23 at the bottom of the fixed frame 3 can prevent impurities from overflowing, and the impurities are finally discharged out of the equipment through multiple impurity discharge ports 24 at the bottom of the fixed frame 3 to ensure the cleanliness of the processing area.

[0071] Operation after processing:

[0072] After the processing is completed, first turn off the drive motor 6 and start the servo motor 15 to reverse the output shaft, so that the grinding head 19 is away from the inner wall of the planetary ball screw nut blank 2, so that the planetary ball screw nut blank 2 stops rotating and the grinding head 19 stops working.

[0073] Then the piston end of the cylinder 11 is retracted, so that the moving block 12 moves upward until it returns to the initial position and closes the cylinder 11.

[0074] The rotating handle 28 is turned to move the clamping block 9 outward, loosen the planetary ball screw nut blank 2, and remove the processed planetary ball screw nut blank 2 from the fixed plate 7.

[0075] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vertical internal thread grinding machine, comprising a processing bed (1), a planetary ball screw nut blank (2) and a fixing frame (3) fixedly mounted on the processing bed (1), characterized in that: A material transfer mechanism is provided at the center of the bottom of the fixed frame (3), and a grinding mechanism is provided at the top of the fixed frame (3); The solid material transfer mechanism comprises a rotating disk (4) rotatably connected to the bottom of a fixed frame (3); a mounting groove (5) is provided at the bottom of the fixed frame (3); a driving motor (6) is fixedly installed at the bottom of the mounting groove (5); the rotating disk (4) is fixedly sleeved on the output shaft of the driving motor (6); a fixed disk (7) is fixedly installed on the top of the rotating disk (4); a plurality of sliding grooves (8) are provided at the top of the fixed disk (7); a clamping block (9) is slidably connected to the inner side wall of the sliding groove (8); and a moving component capable of moving the plurality of clamping blocks (9) is provided in the fixed disk (7); The grinding mechanism comprises a limiting cylinder (10) fixedly mounted on the top of a fixed frame (3), a cylinder (11) fixedly mounted on the top of the limiting cylinder (10), a moving block (12) fixedly mounted on the piston end of the cylinder (11) and sliding with the inner wall of the limiting cylinder (10), a fixing groove (13) being provided at the bottom of the moving block (12), two first threaded rods (14) being rotatably connected to the inner wall of the fixing groove (13), a servo motor (15) fixedly mounted on the inner wall of the fixing groove (13), and the servo motor (15) Gears are fixedly sleeved on the output shaft and the first threaded rod (14), the gear located in the middle and the gears located on both sides are meshed and connected, the two first threaded rods (14) are threadedly sleeved with the same cross block (16), a mounting opening (17) is provided at the bottom of the cross block (16), a grinding rod (18) is slidably connected to the inner wall of the mounting opening (17), a grinding head (19) is fixedly installed at the end of the grinding rod (18), and the grinding rod (18) and the cross block (16) are fixedly connected by fixing bolts (20).

2. The vertical internal thread grinding machine according to claim 1, characterized in that: A debris collection hole (21) is provided at the center of the top of the fixed disk (7), a debris discharge hole (22) connected to the debris collection hole (21) is provided on the outer wall of the fixed disk (7), an anti-overflow ring block (23) is fixedly mounted on the inner bottom of the fixed frame (3), and a plurality of debris discharge openings (24) are provided on the inner bottom of the fixed frame (3).

3. The vertical internal thread grinding machine according to claim 1, characterized in that: The moving assembly is composed of a plurality of second threaded rods (25), a plurality of bevel gears (26), a rotating rod (27) and a rotating handle (28); the second threaded rod (25) is rotatably connected to the inner wall of the slide groove (8); the clamping block (9) is threadedly sleeved on the outer wall of the second threaded rod (25); the bevel gear (26) is fixedly sleeved on the second threaded rod (25); two adjacent bevel gears (26) are meshedly connected; the rotating rod (27) is rotatably connected to the outer wall of the fixed plate (7); the end of the rotating rod (27) is fixedly connected to one of the ends of the second threaded rods (25); and the rotating handle (28) is fixedly sleeved on the outer wall of the rotating rod (27).

4. The vertical internal thread grinding machine according to claim 3, characterized in that: A second threaded hole matched with the second threaded rod (25) is provided on the outer wall of the clamping block (9), and the outer wall of the second threaded rod (25) and the inner wall of the second threaded hole are threadedly connected.

5. The vertical internal thread grinding machine according to claim 1, characterized in that: A plurality of sliding limiting grooves (29) are provided on the outer side wall of the clamping block (9).

6. The vertical internal thread grinding machine according to claim 1, characterized in that: The plurality of slide grooves (8) are distributed in a circular array on the top of the fixed plate (7).

7. The vertical internal thread grinding machine according to claim 1, characterized in that: The rotating disk (4), the fixed disk (7) and the limiting cylinder (10) are coaxially arranged.

8. The vertical internal thread grinding machine according to claim 1, characterized in that: Two first threaded holes that are compatible with the first threaded rods (14) are provided on the outer side wall of the transverse block (16), and the outer side wall of the first threaded rod (14) and the inner side wall of the first threaded hole are threadedly connected at the same level.

9. The vertical internal thread grinding machine according to claim 1, characterized in that: A reinforcing mechanism is provided at the bottom of the transverse block (16), and the reinforcing mechanism comprises a reinforcing plate (30) fixedly mounted at the bottom of the transverse block (16); a limiting groove (31) is provided on the outer wall of the reinforcing plate (30); the outer wall of the grinding rod (18) and the inner wall of the limiting groove (31) are engaged with each other; the grinding rod (18) and the reinforcing plate (30) are fixedly connected by two reinforcing bolts (32).

10. The vertical internal thread grinding machine according to claim 9, characterized in that: The outer side walls of the grinding rod (18) and the reinforcing plate (30) are each provided with two reinforcing holes, and the outer side walls of the reinforcing bolts (32) on the same layer are slidably connected to the inner side walls of the reinforcing holes.

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