Numerical control worm grinding wheel gear grinding machine and using method thereof

Abstract

The invention relates to the technical field of gear grinding machines, and discloses a numerical control worm grinding wheel gear grinding machine and a using method thereof.The gear grinding machine comprises a shell, a cabinet door is installed on the side face of the shell in a sliding mode, a bottom plate is fixedly installed in the shell, a lifting plate is arranged on the bottom plate, and a grinding wheel driven by a motor is arranged on the lifting plate; a cooling pipe is fixedly installed on the lifting plate, an installation clamping base used for clamping a workpiece is arranged on the bottom plate, and a plurality of sets of water falling grooves located in the side face of the installation clamping base are formed in the bottom plate. A cavity is formed below the bottom plate, and a guide plate used for receiving falling cooling liquid in the water falling groove is fixedly installed on the bottom plate. The device has the beneficial effects that after the flow speed is increased, cooling liquid flows on the rotating plate in a thin-layer state, so that scrap iron in the cooling liquid is closer to the rotating plate and is more easily adsorbed and fixed by a magnet, the removal effect of the scrap iron is improved, and the recovery efficiency of the cooling liquid is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of gear grinding machine technology, specifically to a CNC worm gear grinding machine and its usage method. Background Technology

[0002] The worm gear grinding machine is a machine tool that uses a grinding wheel as an abrasive to process gears.

[0003] In the grinding process of worm gear grinding machines, the machining area needs to be cooled and cleaned with coolant. The cleaned coolant is usually collected, filtered, and reused. Patent publication number CN111889814A describes a method where cooling oil is collected through a collection funnel and then flows into a filter box via an oil collection pipe. Permanent magnets inside the filter box attract iron filings from the cooling oil. However, the magnets have a limited distribution area. After entering the filter box, the coolant collides with the first set of magnets and flows rapidly from both sides. Once a large amount of iron filings has been attracted to the first set of magnets, it becomes difficult to attract more. The rapidly flowing coolant carries the iron filings directly to the filter screen from both sides. Some iron filings cannot reach the magnets, making it difficult for subsequent magnets to attract them, thus clogging the filter screen, reducing the removal efficiency of iron filings from the coolant, and affecting the coolant recovery efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a device for coolant recovery that achieves good filtration results.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A CNC worm gear grinding machine includes a housing, a cabinet door slidably installed on the side of the housing, a base plate fixedly installed inside the housing, a lifting plate provided on the base plate, a grinding wheel driven by a motor provided on the lifting plate, a cooling pipe fixedly installed on the lifting plate, a mounting bracket for clamping workpieces provided on the base plate, and multiple sets of water drop grooves located on the side of the mounting bracket on the base plate.

[0007] A cavity is provided below the base plate. A guide plate for receiving coolant falling from the water trough is fixedly installed on the base plate. A surrounding plate coaxially arranged with the guide plate is fixedly installed inside the cavity. A drain trough communicating with the area enclosed by the surrounding plate is fixedly installed on the shell. A water-spinning motor is fixedly installed on the base plate. A rotating plate is fixedly installed at the output end of the water-spinning motor. A magnet for adsorbing and fixing iron filings is provided on the side of the rotating plate away from the base plate.

[0008] As a further embodiment of the present invention: a large column is slidably mounted on the base plate and a first servo module for driving the large column to move is provided on the base plate; a lifting plate is slidably mounted on the side of the large column and a second servo module for driving the lifting plate to move is provided on the lifting plate.

[0009] As a further embodiment of the present invention: a small column is fixedly installed on the base plate, a mounting bracket is rotatably installed on the small column and driven by a motor, a movable plate is slidably installed on the small column, and a third servo module that drives the movable plate to move is provided on the small column, and a pin is rotatably installed on the movable plate.

[0010] As a further aspect of the present invention: the guide plate is frustum-shaped, and the opening of the guide plate faces the bottom plate.

[0011] As a further embodiment of the present invention: the axis of the rotating plate coincides with the surrounding plate and a non-circular vertical rod is fixedly installed on the rotating plate. A sleeve is slidably installed on the vertical rod. A magnet is fixedly installed on the sleeve. The magnet is coaxially arranged with the rotating plate. A first electric telescopic rod that drives the sleeve to move is fixedly installed on the surrounding plate.

[0012] As a further embodiment of the present invention: an mounting ring is rotatably mounted on the sleeve, and two sets of mounting plates are fixedly mounted on the mounting ring, with the output end of the first electric telescopic rod fixedly connected to the mounting plate.

[0013] As a further embodiment of the present invention: a limiting frame is fixedly installed on the mounting plate, a connecting plate is slidably installed on the limiting frame, two sets of connecting plates are fixedly installed together with a limiting ring, the limiting ring matches the rotating plate and a notch is provided on the limiting ring, a pull wire is fixedly connected to the limiting frame, and one end of the pull wire away from the limiting frame is fixedly connected to the connecting plate.

[0014] As a further embodiment of the present invention: a second electric telescopic rod is fixedly installed at the notch of the limiting ring, and a guide rod that is slidably installed on the limiting ring is fixedly installed at the output end of the second electric telescopic rod, and the surface of the guide rod near the rotating plate is flush with the lower surface of the limiting ring.

[0015] As a further embodiment of the present invention: an installation groove extending into the enclosure plate is fixedly installed on the side wall of the housing, a cover plate is sleeved on the installation groove, and a filter box is fixedly installed on the cover plate. The filter box corresponds to the notch of the limiting ring, and the upper surface of the filter box is lower than the bottom surface of the rotating plate.

[0016] The present invention also provides a method of using a gear grinding machine, which is applied to the CNC worm gear grinding machine described above, and includes the following steps:

[0017] Step S1: Place the workpiece to be processed on the mounting fixture and clamp it. Close the cabinet door and drive the moving plate downward through the third servo module so that the ejector pin contacts the top of the workpiece.

[0018] Step S2: Adjust the position of the large column through the first servo module and adjust the height of the lifting plate through the second servo module so that the grinding wheel moves to the processing position of the workpiece. Then the gear grinding operation can be performed. Coolant is sprayed into the gear grinding operation area through the cooling pipe.

[0019] Step S3: After the coolant falls to the bottom plate, it flows down through the water dropper to the guide plate. Then the coolant moves down along the guide plate to the rotating plate. When the coolant flows through the area corresponding to the magnet, the iron filings in the coolant will be attracted to the rotating plate under the action of the magnetic force. After the coolant leaves the rotating plate, it falls into the enclosure and then flows along the drain trough to the collection device.

[0020] Step S4: After the gear grinding is completed, replace the workpiece with a new one.

[0021] The beneficial effects of this invention are:

[0022] (1) In this invention, the coolant moves down the guide plate to the rotating plate. The rotating plate is slowly rotated by the water-spinning motor. When the coolant flows through the area corresponding to the magnet, the iron filings in the coolant will be attracted to the rotating plate under the action of the magnetic force. The rotating plate gives the coolant an acceleration, which increases the flow speed of the coolant. After the flow speed increases, the coolant flows in a thin layer on the rotating plate, which makes the iron filings in the coolant closer to the rotating plate and easier to be attracted and fixed by the magnet. This reduces the probability of the upper layer of coolant carrying iron filings to escape, improves the removal effect of iron filings, and ensures the recovery efficiency of the coolant.

[0023] (2) In this invention, after each set usage time, the rotating plate is sealed around the perimeter by a limiting ring, and the coolant and iron filings on the rotating plate are guided by a guide rod, thereby realizing the automatic directional cleaning of iron filings on the rotating plate. Under the action of the guide rod, the iron filings can be completely removed from the rotating plate, which improves the cleaning effect of iron filings on the rotating plate, avoids the presence of a large number of iron filings on the rotating plate affecting the subsequent adsorption and fixation of iron filings, further improves the removal effect of iron filings, and ensures the recovery efficiency of coolant. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 This is a first-view structural diagram of the interior of the shell in this invention.

[0027] Figure 3 This is a schematic diagram of the internal structure of the shell in this invention from a second perspective.

[0028] Figure 4This is a cross-sectional view of the cavity structure in this invention.

[0029] Figure 5 This is a first-view structural schematic diagram of the rotating plate in this invention.

[0030] Figure 6 This is a schematic diagram of the rotating plate from a second perspective in this invention.

[0031] Figure 7 yes Figure 4 Enlarged diagram of point A in the middle.

[0032] In the diagram: 1. Shell; 2. Base plate; 3. Large column; 4. First servo module; 5. Lifting plate; 6. Second servo module; 7. Grinding wheel; 8. Cooling pipe; 9. Small column; 10. Mounting clamp; 11. Moving plate; 12. Third servo module; 13. Ejector pin; 14. Drain trough; 15. Enclosure plate; 16. Guide plate; 17. Spin motor; 18. Rotating plate; 19. Vertical rod; 20. Sleeve; 21. Cavity; 22. Magnet; 23. Mounting ring; 24. Mounting plate; 25. First electric telescopic rod; 26. Limiting frame; 27. Pull cable; 28. Connecting plate; 29. ​​Limiting ring; 30. Second electric telescopic rod; 31. Guide rod; 32. Mounting groove; 33. Filter box; 34. Cover plate; 35. Drainage trough. Detailed Implementation

[0033] 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.

[0034] Please see Figures 1-7 As shown, the present invention is a CNC worm gear grinding machine, including a housing 1, a cabinet door slidably installed on the side of the housing 1, a base plate 2 fixedly installed inside the housing 1, a lifting plate 5 provided on the base plate 2, a grinding wheel 7 driven by a motor provided on the lifting plate 5, a cooling pipe 8 fixedly installed on the lifting plate 5, a large column 3 slidably installed on the base plate 2 and a first servo module 4 for moving the large column 3 provided on the base plate 2, a second servo module 6 for moving the lifting plate 5 slidably installed on the side of the large column 3, a mounting clamp 10 for clamping workpieces provided on the base plate 2, a small column 9 fixedly installed on the base plate 2, a mounting clamp 10 rotatably installed on the small column 9 and driven by a motor, a moving plate 11 slidably installed on the small column 9 and a third servo module 12 for moving the moving plate 11 provided on the small column 9, a ejector pin 13 rotatably installed on the moving plate 11, and multiple sets of water troughs 14 located on the side of the mounting clamp 10 on the base plate 2;

[0035] A cavity 21 is provided below the base plate 2. A guide plate 16 for receiving the coolant falling from the water trough 14 is fixedly installed on the base plate 2. The guide plate 16 is frustoconical and its opening faces the base plate 2. A surrounding plate 15 coaxially arranged with the guide plate 16 is fixedly installed inside the cavity 21. A drain trough 35 connected to the area enclosed by the surrounding plate 15 is fixedly installed on the shell 1. A water-spinning motor 17 is fixedly installed on the base plate 2. A rotating plate 18 is fixedly installed at the output end of the water-spinning motor 17. A magnet 22 for adsorbing and fixing iron filings is provided on the side of the rotating plate 18 away from the base plate 2.

[0036] In practical application, the workpiece to be processed is placed on the mounting fixture 10 and clamped. The cabinet door is closed, and the moving plate 11 is moved downward by the third servo module 12 so that the ejector pin 13 contacts the top of the workpiece, thus fixing the workpiece. The position of the large column 3 is adjusted by the first servo module 4, and the height of the lifting plate 5 is adjusted by the second servo module 6 so that the grinding wheel 7 moves to the processing position of the workpiece. Then, the gear grinding operation can be performed. Coolant is sprayed into the gear grinding operation area through the cooling pipe 8. After the gear grinding is completed, a new workpiece can be replaced.

[0037] Initially, magnet 22 is in contact with rotating plate 18 and rotates synchronously with rotating plate 18. After the coolant falls to bottom plate 2, it flows downward through water trough 14 to guide plate 16. Then, the coolant moves downward along guide plate 16 to rotating plate 18. Rotating plate 18 is slowly rotated by water-spraying motor 17. When rotating plate 18 rotates, coolant flows in all directions. When coolant flows through the area corresponding to magnet 22, iron filings in the coolant are attracted to rotating plate 18 under the action of magnetic force. After leaving rotating plate 18, coolant falls into enclosure 15 and then flows along drain trough 35 to collection device. Rotating plate 18 gives the coolant an acceleration, increasing the flow speed of the coolant. With the increased flow speed, the coolant flows in a thin layer on rotating plate 18, making the iron filings in the coolant closer to rotating plate 18 and easier to be attracted and fixed by magnet 22. This reduces the probability of iron filings escaping carried by the upper layer of coolant and improves the removal effect of iron filings.

[0038] Please see Figures 4-6 As shown, the present invention is a CNC worm gear grinding machine. The axis of the rotating plate 18 coincides with the surrounding plate 15, and a non-circular vertical rod 19 is fixedly installed on the rotating plate 18. A sleeve 20 is slidably installed on the vertical rod 19. A magnet 22 is fixedly installed on the sleeve 20. The magnet 22 is coaxially arranged with the rotating plate 18. A first electric telescopic rod 25 that drives the sleeve 20 to move is fixedly installed on the surrounding plate 15.

[0039] Specifically, a mounting ring 23 is rotatably mounted on the sleeve 20, and two sets of mounting plates 24 are fixedly mounted on the mounting ring 23. The output end of the first electric telescopic rod 25 is fixedly connected to the mounting plate 24.

[0040] In practical application, the first electric telescopic rod 25 drives the mounting plate 24 to move up and down. The mounting plate 24 drives the sleeve 20 to move along the vertical rod 19 through the mounting ring 23, thereby adjusting the height of the magnet 22. The vertical rod 19, sleeve 20, and mounting ring 23 work together to enable the magnet 22 to rotate synchronously with the rotating plate 18, thus ensuring that the magnet 22 can stably attract and fix the iron filings on the rotating plate 18. When removing the iron filings from the rotating plate 18, the magnet 22 moves downward away from the rotating plate 18. After the magnet 22 moves away, it no longer fixes the iron filings on the rotating plate 18. At this time, the iron filings are in a movable state, which is convenient for subsequent cleaning.

[0041] Please see Figures 4-6 As shown, the present invention is a CNC worm gear grinding machine. A limit frame 26 is fixedly installed on the mounting plate 24. A connecting plate 28 is slidably installed on the limit frame 26. Two sets of connecting plates 28 are fixedly installed with a limit ring 29. The limit ring 29 matches the rotating plate 18 and has a notch. A pull wire 27 is fixedly connected to the limit frame 26. One end of the pull wire 27 away from the limit frame 26 is fixedly connected to the connecting plate 28.

[0042] Specifically, a second electric telescopic rod 30 is fixedly installed at the notch of the limiting ring 29, and a guide rod 31 is fixedly installed at the output end of the second electric telescopic rod 30 and slidably mounted on the limiting ring 29. The surface of the guide rod 31 near the rotating plate 18 is flush with the lower surface of the limiting ring 29.

[0043] Specifically, a mounting groove 32 extending into the enclosure plate 15 is fixedly installed on the side wall of the housing 1. A cover plate 34 is fitted on the mounting groove 32. A filter box 33 is fixedly installed on the cover plate 34. The filter box 33 corresponds to the notch of the limiting ring 29, and the upper surface of the filter box 33 is lower than the bottom surface of the rotating plate 18.

[0044] In practical application, in the initial state, the guide rod 31 does not enter the limiting ring 29. When the magnet 22 contacts the rotating plate 18, the pull wire 27 is taut. At this time, there is a gap between the limiting ring 29 and the rotating plate 18. When it is necessary to clean the iron filings on the rotating plate 18, the rotating plate 18 stops rotating, the magnet 22 moves downward, and the limiting frame 26 and the connecting plate 28 move downward simultaneously, so that the limiting ring 29 moves downward and contacts the rotating plate 18. When the magnet 22 initially moves downward, the distance between it and the rotating plate 18 is relatively close, and the iron filings are still fixed by the magnet 22.

[0045] After the limiting ring 29 contacts the rotating plate 18, since the iron filings are fixed by the magnet 22, the limiting ring 29 is located outside the coverage area of ​​the magnet 22, thus the limiting ring 29 is in close contact with the rotating plate 18. The magnet 22 continues to descend a set distance. At this time, the iron filings on the rotating plate 18 are no longer fixed by the magnet 22, and the limiting frame 26 contacts the connecting plate 28. Under the restriction of the limiting frame 26, the limiting ring 29 is prevented from detaching from the rotating plate 18. Then, the second electric telescopic rod 30 drives the guide rod 31 into the limiting ring 29. The guide rod 31 is set at an angle to the radial direction of the rotating plate 18, and the lower surface of the guide rod 31 is flush with the upper surface of the rotating plate 18. Thus, when the guide rod 31 enters the limiting ring 29, it can push away the iron filings on the path, ensuring that the guide rod 31 itself is in close contact with the rotating plate 18. Then, the rotating plate 18 continues to rotate slowly. When the iron filings on the rotating plate 18... After the metal filings and coolant come into contact with the guide rod 31, the rotating plate 18 continuously pushes the coolant and metal filings along the guide rod 31 toward the notch of the limiting ring 29. Finally, the metal filings and coolant fall down into the filter box 33. The metal filings remain in the filter box 33, and the coolant continues to fall. After a long period of use, the filter box 33 can be removed through the cover plate 34 for cleaning. After each set usage time, the limiting ring 29 seals the rotating plate 18. The guide rod 31 guides the coolant and metal filings on the rotating plate 18, realizing automatic directional cleaning of the metal filings on the rotating plate 18. Under the action of the guide rod 31, the metal filings can be completely removed from the rotating plate 18, improving the cleaning effect of the metal filings on the rotating plate 18 and preventing a large number of metal filings on the rotating plate 18 from affecting the subsequent adsorption and fixation of the metal filings, further improving the removal effect of the metal filings.

[0046] After the set time, the rotating plate 18 rotates multiple times. After the large amount of iron filings that had accumulated on the rotating plate 18 are cleaned, the magnet 22 returns to its original position. When the limit frame 26 moves upward, it drives the limit ring 29 to return to its original position through the pull wire 27. At this point, it can continue to be used.

[0047] Please see Figures 1-7 As shown, this invention relates to a method of using a gear grinding machine, which is applied to the aforementioned CNC worm gear grinding machine, and includes the following steps:

[0048] Step S1: Place the workpiece to be processed on the mounting fixture 10 and clamp it, close the cabinet door, and drive the moving plate 11 downward through the third servo module 12 so that the ejector pin 13 contacts the top of the workpiece.

[0049] Step S2: Adjust the position of the large column 3 through the first servo module 4, and adjust the height of the lifting plate 5 through the second servo module 6 so that the grinding wheel 7 moves to the processing position of the workpiece. Then the gear grinding operation can be performed. Coolant is sprayed into the gear grinding operation area through the cooling pipe 8.

[0050] Step S3: After the coolant falls to the bottom plate 2, it flows downward through the water dropper 14 to the guide plate 16. Then the coolant moves downward along the guide plate 16 to the rotating plate 18. When the coolant flows through the area corresponding to the magnet 22, the iron filings in the coolant will be attracted to the rotating plate 18 under the action of the magnetic force. After the coolant leaves the rotating plate 18, it falls into the enclosure 15 and then flows along the drain trough 35 to the collection device.

[0051] Step S4: After the gear grinding is completed, replace the workpiece with a new one.

Claims

1. A CNC worm grinding machine comprising a housing (1), characterized in that, The shell (1) side slidingly installed with cabinet door, the shell (1) inside fixedly installed with bottom plate (2), bottom plate (2) is provided with lifting plate (5), lifting plate (5) is provided with grinding wheel (7) by motor drive, lifting plate (5) is fixedly installed with cooling pipe (8), the bottom plate (2) is provided with mounting clamp seat (10) for clamping workpiece, bottom plate (2) is opened with multiple groups of water falling groove (14) located the side of mounting clamp seat (10); The bottom plate (2) is provided with a cavity (21) below, the bottom plate (2) is fixedly installed with guide plate (16) for receiving the cooling liquid falling in water falling groove (14), the cavity (21) is fixedly installed with the surrounding plate (15) coaxially arranged with guide plate (16), the shell (1) is fixedly installed with the drainage groove (35) in communication with the area surrounded by the surrounding plate (15), the bottom plate (2) is fixedly installed with water throwing motor (17), the output end of water throwing motor (17) is fixedly installed with rotating plate (18), the side of rotating plate (18) away from the bottom plate (2) is provided with magnet (22) for adsorbing and fixing iron filings.

2. The CNC worm grinder of claim 1, wherein, The bottom plate (2) is provided with a cavity (21) below, the bottom plate (2) is fixedly installed with guide plate (16) for receiving the cooling liquid falling in water falling groove (14), the cavity (21) is fixedly installed with the surrounding plate (15) coaxially arranged with guide plate (16), the shell (1) is fixedly installed with the drainage groove (35) in communication with the area surrounded by the surrounding plate (15), the bottom plate (2) is fixedly installed with water throwing motor (17), the output end of water throwing motor (17) is fixedly installed with rotating plate (18), the side of rotating plate (18) away from the bottom plate (2) is provided with magnet (22) for adsorbing and fixing iron filings.

3. The CNC worm grinder of claim 1, wherein, The bottom plate (2) is provided with a cavity (21) below, the bottom plate (2) is fixedly installed with guide plate (16) for receiving the cooling liquid falling in water falling groove (14), the cavity (21) is fixedly installed with the surrounding plate (15) coaxially arranged with guide plate (16), the shell (1) is fixedly installed with the drainage groove (35) in communication with the area surrounded by the surrounding plate (15), the bottom plate (2) is fixedly installed with water throwing motor (17), the output end of water throwing motor (17) is fixedly installed with rotating plate (18), the side of rotating plate (18) away from the bottom plate (2) is provided with magnet (22) for adsorbing and fixing iron filings.

4. The CNC worm grinder of claim 1, wherein, The guide plate (16) is a circular truncated cone, and the opening of the guide plate (16) faces the bottom plate (2).

5. The CNC worm grinder of claim 1, wherein, The axis of the rotating plate (18) coincides with the surrounding plate (15), and a non-circular vertical rod (19) is fixedly installed on the rotating plate (18), a sleeve (20) is slidingly installed on the vertical rod (19), and a magnet (22) is fixedly installed on the sleeve (20). The magnet (22) is coaxially arranged with the rotating plate (18), and a first electric telescopic rod (25) is fixedly installed on the surrounding plate (15) to drive the sleeve (20) to move.

6. The CNC worm grinder of claim 5, wherein, A mounting ring (23) is rotatably installed on the sleeve (20), two groups of mounting plates (24) are fixedly installed on the mounting ring (23), and the output end of the first electric telescopic rod (25) is fixedly connected with the mounting plate (24).

7. The CNC worm grinder of claim 6, wherein, A limiting frame (26) is fixedly installed on the mounting plate (24), a connecting plate (28) is slidingly installed on the limiting frame (26), two groups of connecting plates (28) are fixedly installed with a limiting ring (29), the limiting ring (29) is fitted with the rotating plate (18), and the limiting ring (29) is provided with a notch. A pull wire (27) is fixedly connected with the connecting plate (28) away from the limiting frame (26).

8. The CNC worm grinder of claim 7, wherein, The notch of the limiting ring (29) is fixedly installed with a second electric telescopic rod (30), the output end of the second electric telescopic rod (30) is fixedly installed with a guide rod (31) slidingly installed on the limiting ring (29), and the surface of the guide rod (31) close to the rotating plate (18) is flush with the lower surface of the limiting ring (29).

9. The CNC worm grinder of claim 7, wherein, The side wall of the shell (1) is fixedly installed with a mounting groove (32) extending into the surrounding plate (15), the mounting groove (32) is sleeved with a cover plate (34), the cover plate (34) is fixedly installed with a filter box (33), the filter box (33) corresponds to the notch of the limiting ring (29), and the upper surface of the filter box (33) is lower than the bottom surface of the rotating plate (18).

10. A method of using a gear grinding machine, characterized in that, The application is applied to the numerical control worm grinding machine as claimed in any one of claims 1-9, and comprises the following steps. Step S1: placing a workpiece to be machined on the mounting clamp (10) and clamping, closing the cabinet door, moving the moving plate (11) downward by the third servo module (12) to make the thimble (13) contact the top of the workpiece; Step S2: adjusting the position of the large column (3) by the first servo module (4), adjusting the height of the lifting plate (5) by the second servo module (6) to move the grinding wheel (7) to the machining position of the workpiece, and then performing the gear grinding operation, and spraying the cooling liquid to the gear grinding operation area by the cooling pipe (8); Step S3: after the cooling liquid falls to the bottom plate (2), it flows downward to the guide plate (16) through the water falling groove (14), and then the cooling liquid moves downward along the guide plate (16) to the rotating plate (18), when the cooling liquid flows through the area corresponding to the magnet (22), the iron filings in the cooling liquid are adsorbed on the rotating plate (18) under the action of the magnetic force, and after the cooling liquid leaves the rotating plate (18), it falls into the surrounding plate (15), and then flows along the drainage groove (35) to the collecting equipment; Step S4: after the gear grinding is completed, a new workpiece is replaced.

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