Cutter polishing device

Abstract

The utility model belongs to the technical field of cutter polishing, and particularly relates to a cutter polishing device which comprises a base, a vertical plate is fixedly connected to the base, a first motor is installed on one side wall of the vertical plate, the output end of the first motor is connected with a rotating column, the end of the rotating column is sleeved with a polishing disc, and the end of the polishing disc is connected with a cutter. A fixing block is installed on the other side wall of the vertical plate, a dust suction hood is fixedly connected to the fixing block, the rotating column penetrates through the dust suction hood, the grinding disc is arranged in the dust suction hood, a supporting column is fixedly connected to the base, and a sleeve is fixedly connected to the top end of the supporting column. When the milling cutter is ground, under the cooperation of the grinding disc and the grinding head, the surface and the threaded part of the milling cutter can be ground, the two parts are ground at the same time, it can be guaranteed that the milling cutter is fully ground and polished, it is guaranteed that the cutting edge of the milling cutter is smoother and sharper, and the cutting performance is remarkably improved; therefore, the machining efficiency and quality of the milling cutter are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tool grinding, in particular to a tool grinding device. Background Art

[0002] A milling cutter is a cutting tool used for milling processing. It is mainly used to perform various milling processes on workpieces on a milling machine. During the milling process, the milling cutter needs to be polished.

[0003] A Chinese patent with announcement number CN218312450U discloses a milling cutter blade grinder, which relates to the technical field of milling cutter blade grinders, including a workbench and a rotating unit; a support frame 1 is provided at the upper rear end of the workbench, and the front middle part of the support frame 1 is connected to a grinding wheel through an external motor, and an adjustment unit is provided at the upper front end of the workbench; a support frame 2 is provided on the upper side of the adjustment unit, and a circular hole is opened in the middle part of the support frame 2 along the front and rear directions. The power component is controlled by an external power supply to drive the gear ring to rotate on the inner side of the circular groove, and the rotation of the gear ring drives the rotary chuck clamped on the inner side to rotate on the inner side of the circular hole, and the rotation of the rotary chuck drives the clamped milling cutter bar to realize the rotation effect, thereby more accurately realizing the control and grinding effect of the rotation angle of the milling cutter bar.

[0004] The above-mentioned milling cutter grinding device is inconvenient to grind the threaded part of the milling cutter when grinding the milling cutter. The threaded part of the milling cutter that has not been fully ground has an uneven cutting edge. The uneven cutting edge can easily lead to uneven cutting force distribution, increase the risk of tool wear and breakage, and the uneven cutting edge of the threaded part will directly affect the cutting quality and dimensional accuracy of the workpiece; therefore, a tool grinding device is proposed to address the above problems. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised in the background art, the utility model provides a tool grinding device.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: a tool grinding device described in the present invention comprises a base, a vertical plate is fixedly connected to the base, a first motor is installed on one side wall of the vertical plate, an output end of the first motor is connected to a rotating column, an end portion of the rotating column is sleeved with a grinding disc, a fixed block is installed on the other side wall of the vertical plate, a dust collection hood is fixedly connected to the fixed block, the rotating column passes through the dust collection hood, and the grinding disc is arranged in the dust collection hood, a supporting column is fixedly connected to the base, a sleeve is fixedly connected to the top of the supporting column, a telescopic rod is arranged in the sleeve, a grinding head is fixedly connected to one end of the telescopic rod, a sliding groove is provided on the sleeve, a sliding rod is arranged in the sliding groove, and the bottom end of the sliding rod is fixedly connected to the telescopic rod, and the top end of the sliding rod is threaded The locking cap is equipped with a rotary assembly. When the milling cutter is ground, after the clamped milling cutter surface moves to contact the grinding disc, the slide rod is moved to move in the slide groove, thereby driving the movable rod and the grinding head to move accordingly, until the grinding head moves to contact the inner wall of the spiral groove, and the slide rod is fixed by the locking cap, so that the grinding head can be fixed in the current position. Then the first motor and the fourth motor are started at the same time to rotate the grinding disc and the clamped milling cutter. With the cooperation of the grinding disc and the grinding head, the milling cutter surface and the threaded part can be ground. Grinding these two parts at the same time can ensure that the milling cutter is fully ground and polished, ensuring that its cutting edge is smoother and sharper, and the cutting performance is significantly improved, thereby improving the processing efficiency and quality of the milling cutter.

[0007] Preferably, a debris collection box is installed on the top side of the base, a dust suction pipe is connected between the debris collection box and the dust suction hood, a negative pressure pump is installed on the debris collection box, the input hole of the negative pressure pump is connected to the exhaust pipe, and the other port of the exhaust pipe is arranged in the debris collection box, and the output hole of the negative pressure pump is connected to the exhaust pipe. During the grinding process of the milling cutter, a large amount of debris will be generated. The operation of the negative pressure pump will cause the gas in the debris collection box to be extracted through the exhaust pipe and discharged through the exhaust pipe, so that the interior of the debris collection box is in a negative pressure state, so that the debris generated during the grinding process can be sucked into the debris collection box through the dust suction pipe, so that the debris generated during the grinding process can be cleaned and collected in time, avoiding the accumulation and flying of debris during the grinding process and improving the working environment.

[0008] Preferably, a slag discharge port is provided at the bottom end of one side of the debris collection box, and limiting slide rails are fixedly connected to both sides of the port of the slag discharge port. The two limiting slide rails are slidably assembled with a sealing cover plate. A filter screen is provided in the debris collection box, and the filter screen is provided around the port of the exhaust pipe. When the device is used, the slag discharge port is provided to facilitate the removal of the debris collected in the debris collection box. The filter screen can be provided to prevent the exhaust pipe port from being blocked, thereby ensuring the smooth progress of the dust collection operation.

[0009] Preferably, two T-shaped rails are fixedly connected to the top side of the base, and sliding sleeves are provided on the two T-shaped rails, and the two sliding sleeves are fixedly connected to a movable plate, and a movable block is fixedly connected to the bottom side of the movable plate, and the movable block is arranged between the two T-shaped rails, and two short plates are fixedly connected to the base, and a screw rod is installed on the two short plates for rotation, and the screw rod passes through the movable block, and a second motor is installed on one of the short plates, and the output end of the second motor is connected to one end of the screw rod. When the device is used, the second motor is operated to rotate the screw rod, and with the cooperation of the T-shaped track and the sliding sleeve, the movable block drives the movable plate to move, thereby driving the clamped milling cutter to move accordingly, so that the position of the milling cutter can be adjusted according to the grinding needs.

[0010] Preferably, two square plates are fixedly connected to the top side of the movable plate, and the two square plates are equipped with threaded rods for rotation. A third motor is installed on one of the square plates, and the output end of the third motor is connected to one end of the threaded rod. A movable seat is sleeved on the threaded rod, and two limit slots are provided on the top of the movable plate, and the two limit slots are respectively arranged on both sides of the movable seat, and limit blocks are provided in the two limit slots, and one end of the limit block is fixed to the movable seat. When the device is used, the threaded rod is rotated by the operation of the third motor, and with the cooperation of the limit slot and the limit block, the threaded rod drives the movable seat to move, so that the clamped milling cutter can be moved to a suitable grinding position, and the milling cutter can be moved and ground at the same time.

[0011] Preferably, a fourth motor is installed on the movable seat, and a cavity rotating disk is installed on the output end of the fourth motor, a rotating disk is arranged in the cavity rotating disk, an arc groove is provided on the circumferential surface of the cavity rotating disk, a movable rod is provided in the arc groove, and one end of the movable rod is fixedly connected to the rotating disk, and the other end of the movable rod is rotatably assembled with a locking nut through threaded cooperation, three arc rod grooves are provided on the rotating disk, and limit rods are provided in the three arc rod grooves, and the top end of the limit rod is fixedly connected to the slider, and the top side of the cavity rotating disk is opened There are three rectangular grooves, each of which is provided with a slider, and each of the three sliders is fixed with an arc-shaped clamping plate. Before grinding the milling cutter, the milling cutter to be ground needs to be fixed, and the milling cutter is placed in the three arc-shaped clamping plates, so that the movable rod moves in the arc-shaped groove, and then the rotating disc rotates. With the cooperation of the arc-shaped rod groove and the limit rod, the three sliders are brought close to each other in the rectangular groove, and then the three arc-shaped clamping plates are also brought close to each other, so that milling cutters of different specifications can be clamped and fixed, which is convenient for subsequent precise grinding of milling cutters of different specifications.

[0012] The utility model is beneficial in that:

[0013] 1. When the milling cutter is being ground, the present invention moves the surface of the milling cutter after being clamped and fixed to contact the grinding disc, and then moves the slide bar to move it in the slide groove, thereby driving the movable bar and the grinding head to move accordingly, until the grinding head moves to contact the inner wall of the spiral groove, and then fixes the slide bar through the action of the locking cap, so that the grinding head can be fixed in the current position, and then starts the first motor and the fourth motor at the same time, so that the grinding disc and the clamped milling cutter are rotated, and under the cooperation of the grinding disc and the grinding head, the milling cutter surface and the threaded part can be ground, and the two parts can be ground at the same time, which can ensure that the milling cutter is fully ground and polished, and its cutting edge is more flat and sharp, and the cutting performance is significantly improved, thereby improving the processing efficiency and quality of the milling cutter;

[0014] 2. The utility model generates a large amount of debris during the grinding process of the milling cutter. The negative pressure pump is operated to extract the gas in the debris collection box through the exhaust pipe and discharge it through the exhaust pipe, so that the interior of the debris collection box is in a negative pressure state, thereby being able to suck the debris generated during the grinding process into the debris collection box through the dust suction pipe, so that the debris generated during the grinding process can be cleaned and collected in time, avoiding the accumulation and flying of debris during the grinding process and improving the working environment;

[0015] 3. Before grinding the milling cutter, the utility model needs to fix the milling cutter to be ground, place the milling cutter in the three arc-shaped clamping plates, and move the movable rod in the arc-shaped groove, so that the rotating disc rotates. With the cooperation of the arc-shaped rod groove and the limit rod, the three sliders are moved closer to each other in the rectangular groove, and the three arc-shaped clamping plates are also moved closer to each other, so that milling cutters of different specifications can be clamped and fixed, which is convenient for subsequent precise grinding of milling cutters of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 Schematic diagram of the overall three-dimensional structure of the device;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the grinding mechanism;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the dust collection mechanism;

[0020] Figure 4 Schematic diagram of the three-dimensional structure of the guide mechanism;

[0021] Figure 5 Schematic diagram of the three-dimensional structure of the clamping mechanism;

[0022] Figure 6 It is a schematic diagram of the sectional three-dimensional structure of the cavity rotating disk.

[0023] In the figure: 1. Base; 2. Vertical plate; 3. First motor; 4. Rotating column; 5. Grinding disc; 6. Fixed block; 7. Dust hood; 8. Support column; 9. Casing; 10. Telescopic rod; 11. Grinding head; 12. Slide; 13. Slide rod; 14. Locking cap; 15. Debris collection box; 16. Dust collection pipe; 17. Negative pressure pump; 18. Exhaust pipe; 19. Exhaust pipe; 20. Limiting slide rail; 21. Sealing cover; 22. T-shaped track; 23. Slide sleeve; 24. Movable plate; 25. Movable block; 26. Short plate; 27. Screw; 28. Second motor; 29. ​​Square plate; 30. Threaded rod; 31. Third motor; 32. Moving seat; 33. Limiting groove; 34. Limiting block; 35. Fourth motor; 36. Cavity rotating disk; 37. Rotating disk; 38. Arc groove; 39. Movable rod; 40. Locking nut; 41. Arc rod groove; 42. Limiting rod; 43. Rectangular groove; 44. Slider; 45. Arc clamping plate. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-3As shown, a tool grinding device includes a base 1, a vertical plate 2 is fixedly connected to the base 1, a first motor 3 is installed on one side wall of the vertical plate 2, the output end of the first motor 3 is connected to a rotating column 4, the end of the rotating column 4 is sleeved with a grinding disc 5, a fixed block 6 is installed on the other side wall of the vertical plate 2, a dust cover 7 is fixedly connected to the fixed block 6, the rotating column 4 passes through the dust cover 7, and the grinding disc 5 is arranged in the dust cover 7, a supporting column 8 is fixedly connected to the base 1, a sleeve 9 is fixedly connected to the top of the supporting column 8, a telescopic rod 10 is arranged in the sleeve 9, a grinding head 11 is fixedly connected to one end of the telescopic rod 10, a slide groove 12 is opened on the sleeve 9, a slide rod 13 is arranged in the slide groove 12, and the bottom end of the slide rod 13 is fixed to the telescopic rod 10, and the top end of the slide rod 13 is rotatably assembled with a locking cap 14 through threaded cooperation; when grinding the milling cutter When the surface of the milling cutter after being clamped moves to contact the grinding disc 5, the slide bar 13 is moved to move it in the slide groove 12, thereby driving the telescopic rod 10 and the grinding head 11 to move accordingly, until the grinding head 11 moves to contact the inner wall of the spiral groove, and the slide bar 13 is fixed by the locking cap 14, so that the grinding head 11 can be fixed in the current position, and then the first motor 3 and the fourth motor 35 are started at the same time, so that the grinding disc 5 and the clamped milling cutter are rotated. With the cooperation of the grinding disc 5 and the grinding head 11, the milling cutter surface and the threaded part can be ground. Grinding these two parts at the same time can ensure that the milling cutter is fully ground and polished, ensuring that its cutting edge is smoother and sharper, and the cutting performance is significantly improved, thereby improving the processing efficiency and quality of the milling cutter.

[0026] A debris collection box 15 is installed on the top side of the base 1, and a dust collection pipe 16 is connected between the debris collection box 15 and the dust collection hood 7. A negative pressure pump 17 is installed on the debris collection box 15, and the input hole of the negative pressure pump 17 is connected to the exhaust pipe 18, and the other end of the exhaust pipe 18 is arranged in the debris collection box 15, and the output hole of the negative pressure pump 17 is connected to the exhaust pipe 19. A slag discharge port is opened at the bottom end of one side of the debris collection box 15, and both sides of the port of the slag discharge port are fixedly connected to a limit slide rail 20. The two limit slide rails 20 are slidably assembled with a sealing cover plate 21. A filter is provided, and the filter is arranged around the port of the exhaust pipe 18; during the grinding process of the milling cutter, a large amount of debris will be generated. The negative pressure pump 17 is operated to extract the gas in the debris collection box 15 through the exhaust pipe 18 and discharge it through the exhaust pipe 19, so that the interior of the debris collection box 15 is in a negative pressure state, so that the debris generated during the grinding process can be sucked into the debris collection box 15 through the dust suction pipe 16, so that the debris generated during the grinding process can be cleaned and collected in time, avoiding the accumulation and flying of debris during the grinding process and improving the working environment.

[0027] See also Figure 4-6As shown, two T-shaped rails 22 are fixedly connected to the top side of the base 1, and the two T-shaped rails 22 are both provided with sliding sleeves 23. The two sliding sleeves 23 are cooperated with to be fixed with a movable plate 24, and the bottom side of the movable plate 24 is fixed with a movable block 25, and the movable block 25 is arranged between the two T-shaped rails 22. Two short plates 26 are fixedly connected to the base 1, and the two short plates 26 are cooperated with to be rotated and installed with a screw rod 27, and the screw rod 27 passes through the movable block 25. A second motor 28 is installed on one of the short plates 26, and the output end of the second motor 28 is connected to one end of the screw rod 27; when using the device, the second motor 28 is operated to make the screw rod 27 rotate, and with the cooperation of the T-shaped rail 22 and the sliding sleeve 23, the movable block 25 drives the movable plate 24 to move, thereby driving the clamped milling cutter to move, so that the position of the milling cutter can be adjusted according to the grinding needs.

[0028] The top side of the movable plate 24 is fixedly connected to two square plates 29, and the two square plates 29 are rotated to install a threaded rod 30, one of the square plates 29 is installed with a third motor 31, and the output end of the third motor 31 is connected to one end of the threaded rod 30, and the threaded rod 30 is provided with a movable seat 32. The top of the movable plate 24 is provided with two limit grooves 33, and the two limit grooves 33 are respectively arranged on both sides of the movable seat 32, and a limit block 34 is provided in the two limit grooves 33, and one end of the limit block 34 is fixed to the movable seat 32; when using the device, the threaded rod 30 is operated by the third motor 31 to rotate, and with the cooperation of the limit groove 33 and the limit block 34, the threaded rod 30 drives the movable seat 32 to move, so that the clamped milling cutter can be moved to a suitable grinding position, and the milling cutter can be moved and ground at the same time.

[0029] A fourth motor 35 is mounted on the movable seat 32, and a cavity rotating disk 36 is mounted on the output end of the fourth motor 35. A rotating disk 37 is arranged in the cavity rotating disk 36, and an arc groove 38 is provided on the circumferential surface of the cavity rotating disk 36. A movable rod 39 is provided in the arc groove 38, and one end of the movable rod 39 is fixedly connected to the rotating disk 37, and the other end of the movable rod 39 is assembled with a locking nut 40 through threaded cooperation. Three arc rod grooves 41 are provided on the rotating disk 37, and a limit rod 42 is provided in each of the three arc rod grooves 41, and the top of the limit rod 42 is fixedly connected to the slider 44. The top side of the cavity rotating disk 36 has three moment shaped groove 43, a slider 44 is provided in each of the three rectangular grooves 43, and an arc-shaped clamping plate 45 is fixed to the three sliders 44; before grinding the milling cutter, the milling cutter to be ground needs to be fixed, and the milling cutter is placed in the three arc-shaped clamping plates 45, so that the movable rod 39 moves in the arc-shaped groove 38, and then the rotating disk 37 rotates, and with the cooperation of the arc-shaped rod groove 41 and the limit rod 42, the three sliders 44 are brought close to each other in the rectangular groove 43, and then the three arc-shaped clamping plates 45 are also brought close to each other, so that milling cutters of different specifications can be clamped and fixed, which is convenient for the subsequent precise grinding of milling cutters of different specifications.

[0030] Working principle: Due to the above-mentioned milling cutter grinding device, it is inconvenient to grind the threaded part of the milling cutter when grinding the milling cutter. The threaded part of the milling cutter that has not been fully ground has an uneven cutting edge. The uneven cutting edge can easily lead to uneven cutting force distribution, increase the risk of tool wear and breakage, and the uneven cutting edge of the threaded part will directly affect the cutting quality and dimensional accuracy of the workpiece; therefore, a tool grinding device is proposed to address the above problems; when grinding the milling cutter, after the clamped and fixed milling cutter surface moves to contact the grinding disc 5, the slide rod 13 is moved to move it in the slide groove 12, thereby driving the telescopic rod 10 and the grinding head 11 to move accordingly, until the grinding head 11 moves to contact the inner wall of the spiral groove, and the locking cap 14 is used to fix the slide rod 13, so that the grinding head 11 can be fixed in the current position, and then the first motor 3 and the fourth motor are started at the same time. The motor 35 causes the grinding disc 5 and the clamped milling cutter to rotate. With the cooperation of the grinding disc 5 and the grinding head 11, the surface and threaded parts of the milling cutter can be ground. Grinding these two parts at the same time can ensure that the milling cutter is fully ground and polished, ensuring that its cutting edge is smoother and sharper, and the cutting performance is significantly improved, thereby improving the processing efficiency and quality of the milling cutter; during the grinding process of the milling cutter, a large amount of debris will be generated. The negative pressure pump 17 is operated to extract the gas in the debris collection box 15 through the exhaust pipe 18 and discharge it through the exhaust pipe 19, so that the interior of the debris collection box 15 is in a negative pressure state, so that the debris generated in the grinding process can be sucked into the debris collection box 15 through the dust suction pipe 16, so that the debris generated in the grinding process can be cleaned and collected in time, avoiding the accumulation and flying of debris during the grinding process and improving the working environment.

[0031] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A tool grinding device, characterized in that: The invention comprises a base (1), a vertical plate (2) is fixedly connected to the base (1), a first motor (3) is installed on one side wall of the vertical plate (2), an output end of the first motor (3) is connected to a rotating column (4), an end of the rotating column (4) is sleeved with a grinding disc (5), a fixing block (6) is installed on the other side wall of the vertical plate (2), a dust cover (7) is fixedly connected to the fixing block (6), the rotating column (4) passes through the dust cover (7), and the grinding disc (5) is arranged in the dust cover (7), a supporting column (8) is fixedly connected to the base (1), a sleeve (9) is fixedly connected to the top end of the supporting column (8), a telescopic rod (10) is arranged in the sleeve (9), and one end of the telescopic rod (10) is fixedly connected to the grinding disc. A grinding head (11), a slide groove (12) is provided on the sleeve (9), a slide rod (13) is provided in the slide groove (12), and the bottom end of the slide rod (13) is fixed to the telescopic rod (10), and the top end of the slide rod (13) is assembled with a locking cap (14) by threaded engagement and rotation, a debris collection box (15) is installed on the top side of the base (1), a dust collection pipe (16) is connected between the debris collection box (15) and the dust cover (7), a negative pressure pump (17) is installed on the debris collection box (15), an input hole of the negative pressure pump (17) is connected to an exhaust pipe (18), and the other end of the exhaust pipe (18) is provided in the debris collection box (15), and an output hole of the negative pressure pump (17) is connected to an exhaust pipe (19).

2. A tool grinding device according to claim 1, characterized in that: A slag discharge port is provided at the bottom end of one side of the debris collection box (15), and both sides of the slag discharge port are fixedly connected to limiting slide rails (20), and the two limiting slide rails (20) are slidably assembled with a sealing cover plate (21). A filter screen is provided in the debris collection box (15), and the filter screen is provided around the port of the exhaust pipe (18).

3. The tool grinding device according to claim 1, characterized in that: Two T-shaped rails (22) are fixedly connected to the top side of the base (1), and the two T-shaped rails (22) are both provided with a sliding sleeve (23). The two sliding sleeves (23) are fixedly connected to a movable plate (24). The bottom side of the movable plate (24) is fixedly connected to a movable block (25), and the movable block (25) is arranged between the two T-shaped rails (22). Two short plates (26) are fixedly connected to the base (1), and the two short plates (26) are rotatably provided with a screw rod (27), and the screw rod (27) passes through the movable block (25). A second motor (28) is installed on one of the short plates (26), and the output end of the second motor (28) is connected to one end of the screw rod (27).

4. A tool grinding device according to claim 3, characterized in that: Two square plates (29) are fixedly connected to the top side of the movable plate (24), and the two square plates (29) are rotatably mounted with threaded rods (30), wherein a third motor (31) is mounted on one of the square plates (29), and an output end of the third motor (31) is connected to one end of the threaded rod (30), and a movable seat (32) is sleeved on the threaded rod (30). Two limiting grooves (33) are provided on the top of the movable plate (24), and the two limiting grooves (33) are respectively arranged on both sides of the movable seat (32), and limiting blocks (34) are arranged in the two limiting grooves (33), and one end of the limiting block (34) is fixed to the movable seat (32).

5. A tool grinding device according to claim 4, characterized in that: A fourth motor (35) is mounted on the movable seat (32), and a cavity rotating disk (36) is mounted on the output end of the fourth motor (35), a rotating disk (37) is arranged in the cavity rotating disk (36), an arc groove (38) is provided on the circumferential surface of the cavity rotating disk (36), a movable rod (39) is arranged in the arc groove (38), and one end of the movable rod (39) is fixedly connected to the rotating disk (37), and the other end of the movable rod (39) is rotatably assembled with a locking nut (40) through threaded engagement.

6. The tool grinding device according to claim 5, characterized in that: The rotating disc (37) is provided with three arc-shaped rod grooves (41), each of which is provided with a limiting rod (42), and the top end of the limiting rod (42) is fixedly connected to a slider (44). The top side of the cavity rotating disc (36) is provided with three rectangular grooves (43), each of which is provided with a slider (44), and each of the three sliders (44) is fixedly connected to an arc-shaped clamping plate (45).

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