A high-precision gear grinding device

Abstract

The application discloses a high-precision gear grinding device and relates to the technical field of gear grinding; in order to improve the grinding efficiency; specifically comprising a base and a driving part, the driving part comprises: a vertical plate one, which is fixed to the top outer wall of the base and has an electric telescopic rod fixed to one side of the outer wall of the vertical plate one; a piston rod, which is fixed to the output end of the electric telescopic rod through a pin and has a piston plate fixed to one end of the piston rod through a pin; a piston cylinder, which is movably connected to the circumferential outer wall of the piston plate and has a joint threadedly connected to the bottom of the piston cylinder; and a mounting rod two, which is fixed to the top of the piston rod through a pin; the piston plate is arranged, so that the gas in the piston cylinder can be extruded during the sliding of the piston plate along the piston cylinder; the extrusion plate bottom can be lifted by the pushing action of the gas; and the extrusion plate can drive the expanding head assembly to clamp and fix the grinding gear through the internal expanding mode.

Description

Technical Field

[0001] This invention relates to the field of gear grinding technology, and in particular to a high-precision gear grinding apparatus. Background Technology

[0002] In the existing technology, a gear refers to a mechanical component with gears continuously meshing on its rim to transmit motion and power. With the development of production, the smoothness of gear operation has become important. Gear processing is a process that uses mechanical methods to obtain gears with specific structures and precision. Gear processing machine tools are widely used in various machinery manufacturing industries such as automobiles, construction machinery, mining machinery, petroleum, instruments, aircraft, and spacecraft. However, existing gear grinding processing equipment is not suitable for processing gears of different sizes. Current gear processing equipment can only fix gears of corresponding sizes well, thus having certain limitations.

[0003] A search revealed that Chinese patent application number 202122764285.4 discloses a high-precision gear grinding processing device, including a processing device body, a drop-out port at the upper end of the processing device body, an outlet at the front end of the processing device body, an adjustment structure above the processing device body, and a first slide bar fixedly connected to the upper outer surface of the processing device body, with a limit plate fixedly connected to the upper outer surface of the first slide bar.

[0004] The high-precision gear grinding device in the aforementioned patent has the following shortcomings: during the process of clamping and fixing the gear, it is necessary to pull the movable rod and insert it into the corresponding fixing groove in order to fix the gear. This fixing method is cumbersome, time-consuming, and not conducive to improving the fixing efficiency of the gear. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-precision gear grinding device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-precision gear grinding apparatus includes a base and a drive unit, the drive unit comprising:

[0008] Vertical plate one: It is fixed to the outer wall of the top of the base, and an electric telescopic rod is fixed to one side of the outer wall of vertical plate one;

[0009] Piston rod: It is fixed to the output end of the electric telescopic rod by a pin, and a piston plate is fixed to one end of the piston rod by a pin;

[0010] Piston cylinder: It is movably connected to the outer circumferential wall of the piston plate, and the bottom of the piston cylinder is connected to a joint by a thread;

[0011] Mounting rod 2: It is fixed to the top of the piston rod by a pin, and one end of mounting rod 2 is fixed with electromagnet 2 by a screw;

[0012] Rack: It is fixed to one end of the piston cylinder by a pin, and a guide rod is fixed to one side of the outer wall of the rack;

[0013] Vertical plate two: It is fixed to the outer wall of the top of the base, and the guide rod is movably connected to the inner wall of the through hole opened on the surface of vertical plate two;

[0014] Mounting rod one: It is fixed to the top outer wall of the vertical plate two, and one end of the mounting rod one is fixed with an electromagnet one by a pin;

[0015] Support: It is fixed to the top outer wall of the base, and a rotating ring is movably connected to the inner wall of the through hole on the surface of the support. An extrusion plate is movably connected to the inner wall of the rotating ring, and an inner expansion component is fixed to the top of the extrusion plate.

[0016] Upright plate: It is fixed to the top outer wall of the base, and an air pipe is embedded in the inner wall of the through hole opened on the surface of the upright plate. One end of the air pipe is fixedly connected to the connector, and the other end of the air pipe is connected to the support plate by a thread, and the bottom of the rotating ring is movably connected to the top of the support plate.

[0017] Preferably, the internal expansion assembly includes a mounting ring and a welding rod, the welding rod being fixed to the outer circumference of the rotating ring by a pin, and the mounting ring being welded to one end of the welding rod.

[0018] Preferably, a T-shaped rod is movably connected to the inner wall of the through hole on the surface of the rotating ring. One end of the T-shaped rod is fixed with a limit piece by a pin, and a spring is sleeved on the outer circumference of the T-shaped rod. The two ends of the spring are respectively fixed with pins to the inner circumference of the mounting ring and the inner wall of one side of the limit piece. One end of the T-shaped rod is fixed with a receiving frame by a pin. An adjusting seat is integrally formed on the top of the extrusion plate, and the adjusting seat and the receiving frame are movably connected by the same connecting rod.

[0019] Preferably, a middle rod is fixed to one side of the outer wall of the accommodating frame, and a clamping block is welded to the top of the middle rod.

[0020] Preferably, the top outer wall of the adjusting seat is fixed with a top rod by a pin, and the top outer wall of the top rod is fixed with a top ring by a pin. The inner circumference of the mounting ring is fixed with a transverse rod by a pin, and the end of the transverse rod away from the mounting ring is welded with an intermediate block. The top rod is movably connected to the inner wall of the through hole opened on the surface of the intermediate block.

[0021] Preferably, the piston rod has a drive rod fixed to its outer circumference by a pin, and a pad is fixed to one end of the drive rod. A drive motor is fixed to one side of the outer wall of the pad, and a grinding wheel is fixed to the output end of the drive motor by a pin.

[0022] Preferably, a drive gear is movably connected to the outer circumference of the rotating ring, and the drive gear and the rack mesh with each other.

[0023] Based on the aforementioned scheme: the top of the drive gear is provided with an installation groove, the surface of the installation groove is embedded with a coil spring, and the end of the coil spring away from the installation groove is fixed to the outer wall of the circumference of the rotating ring by a pin.

[0024] A preferred embodiment based on the aforementioned scheme is as follows: a vertical rod is fixed to the top outer wall of the base, and an adsorption plate is fixed to the top outer wall of the vertical rod.

[0025] A further preferred embodiment based on the aforementioned scheme is as follows: a mounting rod three is fixed to the outer circumference of the rotating ring, and an electromagnet three is fixed to one end of the mounting rod three by screws.

[0026] The beneficial effects of this invention are as follows:

[0027] 1. By setting a piston plate, the gas inside the piston cylinder can be compressed as it slides along the inside of the piston cylinder. The pushing action of the gas can lift the bottom of the compression plate. The compression plate can drive the expansion head assembly to clamp and fix the grinding gear by internal expansion.

[0028] 2. By setting a connecting rod, the vertical movement of the extrusion plate can be converted into the lateral expansion movement of the clamping blocks, so that multiple clamping blocks can clamp and fix the grinding gear during the movement.

[0029] 3. A rack and pinion mechanism drives a drive gear to rotate. During rotation, the drive gear uses a coil spring to drive a rotating ring to rotate, which in turn drives the grinding gear to rotate. This allows the position of the grinding wheel relative to the surface of the grinding gear to be adjusted, enabling the grinding wheel to grind different positions on the surface of the grinding gear.

[0030] 4. By setting up an electromagnet, it can be attracted to the surface of the adsorption plate after being energized, so that it can remain stable after the grinding gear rotates to the set cutting position. The elastic deformation of the coil spring can ensure that the grinding wheel will not jam during the grinding process. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of a high-precision gear grinding device proposed in this invention;

[0032] Figure 2 This is a side view structural diagram of a high-precision gear grinding device proposed in this invention;

[0033] Figure 3This is a schematic diagram of the overall structure of the gear fixing part of a high-precision gear grinding device proposed in this invention;

[0034] Figure 4 This is a schematic diagram of the bottom structure of the gear fixing part of a high-precision gear grinding device proposed in this invention;

[0035] Figure 5 This is an exploded view of the gear fixing part of a high-precision gear grinding device proposed in this invention.

[0036] Figure 6 This is a partially exploded structural diagram of the gear fixing part of a high-precision gear grinding device proposed in this invention;

[0037] Figure 7 This is a partial structural diagram of the gear fixing part of a high-precision gear grinding device proposed in this invention;

[0038] Figure 8 This is a schematic diagram of the overall structure of the pneumatic adjustment unit of a high-precision gear grinding device proposed in this invention.

[0039] In the diagram: 1-Base, 2-Mounting rod one, 3-Rack, 4-Piston cylinder, 5-Electric telescopic rod, 6-Drive rod, 7-Vertical plate one, 8-Electromagnet one, 9-Vertical plate two, 10-Guide rod, 11-Drive motor, 12-Grinding wheel, 13-Padded plate, 14-Mounting rod two, 15-Electromagnet two, 16-Air pipe, 17-Upright plate, 18-Mounting rod three, 19-Drive gear, 20-Bracket, 21-Vertical rod, 22-Adsorption plate, 23- - Electromagnet III, 24- Support plate, 25- Mounting ring, 26- Mounting groove, 27- Coil spring, 28- Rotating ring, 29- Intermediate rod, 30- Intermediate block, 31- Clamping block, 32- Connecting rod, 33- Extrusion plate, 34- Transverse rod, 35- Limiting plate, 36- Welding rod, 37- Top rod, 38- Adjusting seat, 39- Spring, 40- Housing frame, 41- T-shaped rod, 42- Top ring, 43- Piston rod, 44- Piston plate, 45- Connector. Detailed Implementation

[0040] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0041] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0042] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0043] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0044] A high-precision gear grinding processing device, such as Figure 1-8 As shown, it includes a base 1 and a drive unit, the drive unit comprising:

[0045] Vertical plate 7: It is fixed to the top outer wall of the base 1 by bolts, and an electric telescopic rod 5 is fixed to one side of the outer wall of vertical plate 7 by bolts;

[0046] Piston rod 43: It is fixed to the output end of the electric telescopic rod 5 by a pin, and one end of the piston rod 43 is fixed to the piston plate 44 by a pin;

[0047] Piston cylinder 4: It is slidably connected to the outer circumferential wall of piston plate 44, and the bottom of piston cylinder 4 is connected to joint 45 by thread;

[0048] Mounting rod 2 14: It is fixed to the top of piston rod 43 by a pin, and one end of mounting rod 2 14 is fixed to electromagnet 2 15 by screws;

[0049] Rack 3: It is fixed to one end of piston cylinder 4 by a pin, and a guide rod 10 is fixed to one side of the outer wall of rack 3 by bolts;

[0050] Vertical plate 2 9: It is fixed to the top outer wall of the base 1 by bolts, and the guide rod 10 is slidably connected to the inner wall of the through hole opened on the surface of vertical plate 2 9;

[0051] Mounting rod 12: It is fixed to the top outer wall of vertical plate 29 by bolts, and one end of mounting rod 12 is fixed with electromagnet 18 by a pin;

[0052] Support 20: It is fixed to the top outer wall of the base 1 by bolts, and a rotating ring 28 is rotatably connected to the inner wall of the through hole on the surface of the support 20. An extrusion plate 33 is slidably connected to the inner wall of the rotating ring 28, and an inner expansion component is fixed to the top of the extrusion plate 33.

[0053] Upright plate 17: It is fixed to the top outer wall of the base 1 by bolts, and an air pipe 16 is embedded in the inner wall of the through hole opened on the surface of the upright plate 17. One end of the air pipe 16 is fixedly connected to the connector 45, and the other end of the air pipe 16 is connected to the support plate 24 by thread, and the bottom of the rotating ring 28 is rotatably connected to the top of the support plate 24.

[0054] The vertical plate 2 9 and guide rod 10 guide the movement path of rack 3 in the lateral position. The electromagnet 1 8 can be attracted to the top of rack 3 after being energized, which can limit the movement between mounting rod 1 2 and vertical plate 2 9. At this time, the electric telescopic rod 5 can drive piston rod 43 and piston plate 44 to slide along the inside of piston cylinder 4. Since piston cylinder 4 remains stationary, piston plate 44 can compress the gas inside piston cylinder 4 during movement. The compressed gas can be introduced into air pipe 16 through connector 45, and finally introduced into rotating ring 28 through support plate 24. After entering rotating ring 28, the gas compresses the bottom of extrusion plate 33, so that extrusion plate 33 can move upward along rotating ring 28 under the pressure of gas. This can drive internal expansion assembly to internally expand and clamp the grinding gear, thereby ensuring the stability of grinding gear during cutting.

[0055] By setting an electromagnet 215 so that it can be attracted to the top of the piston cylinder 4 after being energized, the position of the piston plate 44 relative to the piston cylinder 4 can be limited, ensuring that the air pressure in the rotating ring 28 remains constant, thereby preventing the grinding gear from loosening when it is clamped and fixed by the internal expansion method.

[0056] Further, the internal expansion assembly includes a mounting ring 25 and a welding rod 36. The welding rod 36 is fixed to the outer circumference of the rotating ring 28 by a pin, and the mounting ring 25 is welded to one end of the welding rod 36. A T-shaped rod 41 is slidably connected to the inner wall of the through hole on the surface of the rotating ring 28. One end of the T-shaped rod 41 is fixed to a limiting piece 35 by a pin, and a spring 39 is sleeved on the outer circumference of the T-shaped rod 41. The two ends of the spring 39 are respectively fixed to the inner circumference of the mounting ring 25 and the inner wall of one side of the limiting piece 35 by pins. One end of the T-shaped rod 41 is fixed to a receiving frame 40 by a pin. An adjusting seat 38 is integrally formed on the top of the extrusion plate 33, and the adjusting seat 38 and the receiving frame 40 are rotatably connected by the same connecting rod 32. An intermediate rod 29 is fixed to one side of the outer wall of the receiving frame 40 by bolts, and a clamping block 31 is welded to the top of the intermediate rod 29.

[0057] When the gas pushes the bottom of the extrusion plate 33, the vertical movement of the extrusion plate 33 can be converted into the horizontal linear movement of the T-shaped rod 41 along the mounting ring 25 by the connecting rod 32. This allows multiple clamping blocks 31 to expand outward synchronously. The multiple clamping blocks 31 can clamp and fix grinding gears with different inner diameters. The spring 39 ensures that when the extrusion plate 33 moves down along the inner wall of the rotating ring 28, the multiple clamping blocks 31 can be automatically reset by the elastic force.

[0058] Furthermore, a top rod 37 is fixed to the top outer wall of the adjusting seat 38 by a pin, and a top ring 42 is fixed to the top outer wall of the top rod 37 by a pin. A transverse rod 34 is fixed to the inner circumference of the mounting ring 25 by a pin, and an intermediate block 30 is welded to the end of the transverse rod 34 away from the mounting ring 25. The top rod 37 is slidably connected to the inner wall of the through hole opened on the surface of the intermediate block 30.

[0059] The top rod 37 can guide the movement path of the intermediate block 30, ensuring the stability of the extrusion plate 33 and the adjustment seat 38 during movement.

[0060] Furthermore, a drive rod 6 is fixed to the outer circumference of the piston rod 43 by a pin, and a pad 13 is fixed to one end of the drive rod 6 by a bolt. A drive motor 11 is fixed to one side of the outer wall of the pad 13 by a bolt, and a grinding wheel 12 is fixed to the output end of the drive motor 11 by a pin.

[0061] The grinding wheel 12 can be driven to rotate by the drive motor 11. During the rotation, the grinding wheel 12 can grind the surface of the grinding gear. By fixing the drive rod 6 to the surface of the piston rod 43, the grinding wheel 12 can move laterally under the drive of the electric telescopic rod 5, thereby adjusting the grinding depth of the grinding wheel 12 and the surface of the grinding gear.

[0062] Furthermore, a drive gear 19 is rotatably connected to the outer circumference of the rotating ring 28, and the drive gear 19 and the rack 3 mesh with each other. The top of the drive gear 19 is provided with a mounting groove 26, and a coil spring 27 is embedded in the surface of the mounting groove 26. The end of the coil spring 27 away from the mounting groove 26 is fixed to the outer circumference of the rotating ring 28 by a pin.

[0063] The top outer wall of the base 1 is fixed with a vertical rod 21 by bolts, and the top outer wall of the vertical rod 21 is fixed with an adsorption plate 22 by bolts. The outer circumference of the rotating ring 28 is fixed with a mounting rod 3 18 by bolts, and one end of the mounting rod 3 18 is fixed with an electromagnet 3 23 by screws.

[0064] During the lateral movement of the rack 3, the drive gear 19 can be driven to rotate. The connecting action of the coil spring 27 enables the drive gear 19 to drive the rotating ring 28 to rotate synchronously, thereby enabling the inner expansion component to drive the grinding gear to rotate. This allows the grinding wheel 12 to grind different positions on the outer circumference of the grinding gear. When the grinding gear rotates to the grinding position, the electromagnet 3 23 is energized, allowing it to be attracted to the upper surface of the adsorption plate 22. The elastic deformation of the coil spring 27 effectively ensures that after the rotating ring 28 is limited by the electromagnet 3 23, the rack 3 can continue to drive the drive gear 19 to rotate during the lateral movement. This is to ensure that the drive motor 11 and the grinding wheel 12 will not jam, thus completing the grinding of the surface of the grinding gear.

[0065] In this embodiment, electromagnet 8 is first energized. After being energized, electromagnet 8 can be attracted to the top of rack 3, thereby limiting the position of rack 3. Then, the electric telescopic rod 5 drives piston rod 43 to move laterally. During the lateral movement of piston rod 43, piston plate 44 can slide along the inner wall of piston cylinder 4, thereby compressing the gas inside piston cylinder 4. The compressed gas can be introduced into rotating ring 28 through air pipe 16 and gradually pushes the bottom of compression plate 33. During the movement of compression plate 33, the vertical movement of compression plate 33 can be converted into the lateral expansion movement of clamping blocks 31 by connecting rod 32. Multiple clamping blocks 31 can clamp and fix the grinding gear by internal expansion. Then, electromagnet 15 is... When energized, electromagnet 215 can be attracted to the top of piston cylinder 4. Then, electromagnet 18 is de-energized. After de-energization, electromagnet 18 drives rack 3 to move laterally using electric telescopic rod 5. During the movement of rack 3, drive gear 19 to rotate. During the rotation of drive gear 19, the connecting action of coil spring 27 drives rotating ring 28 and clamping block 31 to rotate, thereby adjusting the position of grinding gear relative to grinding wheel 12. When grinding gear is adjusted to the set position, electromagnet 323 is energized, so that electromagnet 323 is attracted to the upper surface of adsorption plate 22. At this time, as electric telescopic rod 5 continues to drive rack 3 to move laterally, grinding wheel 12 gradually approaches grinding gear and grinds the surface of grinding gear.

[0066] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-precision gear grinding processing device, comprising a base (1) and a drive unit, characterized in that, The drive unit includes: Vertical plate 1 (7): It is fixed to the top outer wall of the base (1), and an electric telescopic rod (5) is fixed to one side of the outer wall of vertical plate 1 (7). Piston rod (43): It is fixed to the output end of the electric telescopic rod (5) by a pin, and a piston plate (44) is fixed to one end of the piston rod (43) by a pin. Piston cylinder (4): It is movably connected to the outer circumferential wall of piston plate (44), and the bottom of piston cylinder (4) is connected to a connector (45) by thread. Mounting rod 2 (14): It is fixed to the top of the piston rod (43) by a pin, and one end of mounting rod 2 (14) is fixed with electromagnet 2 (15) by a screw. Rack (3): It is fixed to one end of piston cylinder (4) by a pin, and a guide rod (10) is fixed on one side of the outer wall of rack (3). Vertical plate two (9): It is fixed to the top outer wall of the base (1), and the guide rod (10) is movably connected to the inner wall of the through hole opened on the surface of vertical plate two (9); Mounting rod 1 (2): It is fixed to the top outer wall of vertical plate 2 (9), and one end of mounting rod 1 (2) is fixed with electromagnet 1 (8) by a pin. Support (20): It is fixed to the top outer wall of the base (1), and the inner wall of the support (20) is movably connected to the through hole, and the inner wall of the rotating ring (28) is movably connected to the inner wall of the circumference of the rotating ring (28), and the top of the extrusion plate (33) is fixed with an inner expansion component. Upright plate (17): It is fixed to the top outer wall of the base (1), and an air pipe (16) is embedded in the inner wall of the through hole opened on the surface of the upright plate (17). One end of the air pipe (16) is fixedly connected to the connector (45), and the other end of the air pipe (16) is connected to the support plate (24) by thread. The bottom of the rotating ring (28) is movably connected to the top of the support plate (24). The internal expansion assembly includes a mounting ring (25) and a welding rod (36). The welding rod (36) is fixed to the outer circumference of the rotating ring (28) by a pin, and the mounting ring (25) is welded to one end of the welding rod (36). A T-shaped rod (41) is movably connected to the inner wall of the through hole on the surface of the rotating ring (28). One end of the T-shaped rod (41) is fixed with a limiting piece (35) by a pin, and a spring (39) is sleeved on the outer circumference of the T-shaped rod (41). The two ends of the spring (39) are respectively fixed with pins to the inner circumference of the mounting ring (25) and the inner wall of one side of the limiting piece (35). One end of the T-shaped rod (41) is fixed with a receiving frame (40) by a pin. An adjusting seat (38) is integrally formed on the top of the extrusion plate (33), and the adjusting seat (38) and the receiving frame (40) are movably connected by the same connecting rod (32).

2. The high-precision gear grinding apparatus according to claim 1, characterized in that, A middle rod (29) is fixed to one side of the outer wall of the accommodating frame (40), and a clamping block (31) is welded to the top of the middle rod (29).

3. The high-precision gear grinding apparatus according to claim 2, characterized in that, The top outer wall of the adjusting seat (38) is fixed with a top rod (37) by a pin, and the top outer wall of the top rod (37) is fixed with a top ring (42) by a pin. The inner circumference of the mounting ring (25) is fixed with a transverse rod (34) by a pin, and the end of the transverse rod (34) away from the mounting ring (25) is welded with an intermediate block (30), and the top rod (37) is movably connected to the inner wall of the through hole opened on the surface of the intermediate block (30).

4. The high-precision gear grinding apparatus according to claim 3, characterized in that, The piston rod (43) has a drive rod (6) fixed to its outer circumference by a pin, and a pad (13) is fixed to one end of the drive rod (6). A drive motor (11) is fixed to one side of the outer wall of the pad (13), and a grinding wheel (12) is fixed to the output end of the drive motor (11) by a pin.

5. The high-precision gear grinding apparatus according to claim 4, characterized in that, The outer circumference of the rotating ring (28) is movably connected to a drive gear (19), and the drive gear (19) and the rack (3) mesh with each other.

6. The high-precision gear grinding apparatus according to claim 5, characterized in that, The top of the drive gear (19) is provided with a mounting groove (26), and a coil spring (27) is embedded in the surface of the mounting groove (26). The end of the coil spring (27) away from the mounting groove (26) is fixed to the outer wall of the circumference of the rotating ring (28) by a pin.

7. The high-precision gear grinding apparatus according to claim 6, characterized in that, A vertical rod (21) is fixed to the top outer wall of the base (1), and an adsorption plate (22) is fixed to the top outer wall of the vertical rod (21).

8. The high-precision gear grinding apparatus according to claim 7, characterized in that, The rotating ring (28) has a mounting rod three (18) fixed on its outer circumference, and one end of the mounting rod three (18) is fixed with an electromagnet three (23) by screws.

Images