A gear grinding machine for gear processing and its gear grinding method

Abstract

The present invention discloses a gear grinding machine for gear processing and its grinding method, which relates to the technical field of gear grinding machines and includes an equipment box; through the cooperation of the clamping mechanism and the external gear positioning box, it is convenient to clamp and grind the external gear, and then through the cooperation of the clamping mechanism and the internal gear positioning box, it is convenient to clamp and grind the internal gear, solving the problem that the clamping mechanism of the existing equipment has a small scope of application; the data acquisition module detects the distance, spacing and pressure data between the threaded seat and the clamping block, and then constructs a right triangle based on these data for analysis and calculation, and compares the displacement data of the clamping block with it to determine whether the clamping is stable. When it is unstable, the reasons are further explored; through this precise control and adjustment mechanism, it is ensured that the clamping of the gear by the clamping block is always in a stable and horizontal state, avoiding the deviation of the grinding position caused by clamping problems, effectively ensuring the processing accuracy of the gear, reducing the gear damage caused by processing errors, and improving the product quality.

Description

Technical Field

[0001] The present invention relates to the technical field of gear grinding machines, and particularly to a gear grinding machine for gear processing and a gear grinding method thereof. Background Art

[0002] A gear is a common mechanical component used to transmit power and motion, consisting of a disk or cylinder with multiple tooth grooves, usually meshing with other gears; a gear grinding machine is a gear processing machine tool that uses a grinding wheel as a grinding tool to process the tooth surface of cylindrical gears or certain gear cutting tools. The gear grinding machine is mainly used to eliminate deformation after heat treatment and improve gear accuracy;

[0003] Existing gear grinding machine equipment is usually limited by the clamping device and can only grind one type of tooth profile, lacking versatility;

[0004] Moreover, when clamping the gear to be ground, the non-horizontal clamping and unstable clamping of the gear will affect the grinding position of the grinding wheel on the gear. The inaccurate grinding position is likely to cause damage to the gear;

[0005] Therefore, the present application needs to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the deficiencies in the prior art and propose a gear grinding machine for gear processing and a gear grinding method thereof.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions: A gear grinding machine for gear processing and a gear grinding method thereof, including an equipment box, with an equipment shell fixedly connected to the periphery of the top surface of the equipment box. On one side of the front end surface of the equipment shell, a loading port is opened, and an equipment door is arranged in the loading port. On the top surface of the equipment shell, a top plate is fixedly connected in cooperation. The top plate, the equipment box, and the loading port on the equipment shell are fixedly connected with an arc-shaped guide rail. The equipment door is slidably connected in the arc-shaped guide rail, and a controller is installed on one side of the loading port of the equipment shell;

[0008] The controller also has a control component inside, and the control component includes a data acquisition module, a data processing module, and a data execution module;

[0009] The data acquisition module detects the distance data between the threaded seat and the clamping block, the spacing data between the threaded seat and the plane where the clamping block is located, and the pressure data of the clamping block, and transmits the detected distance data, spacing data, and pressure data to the data processing module;

[0010] Several modules process and analyze the distance data and spacing data, and compare them with the detected displacement data of the clamping block to determine whether the clamping of the gear is stable. When it is determined to be unstable, the reasons for the instability are analyzed. If the reason for the instability is clamping error, a relaxation clamping signal is generated and the generated relaxation clamping signal is transmitted to the digital execution module. If the reason for the instability is inaccurate adjustment, a rotation signal is generated and the rotation signal is transmitted to the digital execution module.

[0011] The digital execution module receives the relaxation clamping signal and the rotation signal transmitted by the several modules, and performs corresponding operations according to the signal types.

[0012] Preferably, inside the equipment shell on the top surface of the equipment box, there is a clamping mechanism. Behind the clamping mechanism, there is an external tooth positioning box. On the front end face of the external tooth positioning box, there is an external tooth grinding wheel. On one side of the clamping mechanism, there is an internal tooth positioning box. Above the side of the internal tooth positioning box facing the clamping mechanism, there is an internal tooth grinding wheel.

[0013] Preferably, the clamping mechanism includes a transmission component and a rotating seat. Inside the rotating seat, there is a rotating shell rotatably connected. Around the side surface of the rotating shell, four groups of guide plates are evenly fixedly connected, and there is a certain distance between each group of the guide plates.

[0014] Preferably, the transmission component includes a limiting strip. The outer end of the limiting strip is inserted between the guide plates. On the limiting strip, there is a hinged rod, and the other end of the hinged rod is hinged on the hinge seat on the inner side surface of the top block.

[0015] Preferably, on the top surface of the top block, there is a clamping block fixedly connected. At the rear end of the hinge seat on the inner side surface of the top block, there is a telescopic rod, and the other end of the telescopic rod is slidably connected in a guide sleeve.

[0016] Preferably, the guide sleeve is fixedly connected to a bearing seat. Inside the bearing seat, there is a threaded rod rotatably connected. In the middle of the outer side surface of the threaded rod, there is a threaded seat in mating connection. On the threaded seat, there is a limiting strip. The bottom end of the threaded rod is connected to a motor, and the motor is fixedly installed on a turntable. The turntable is rotatably connected to the inner bottom surface of the equipment box.

[0017] Preferably, the steps for the several modules to judge the clamping stability are as follows:

[0018] M1: Construct a right triangle with the threaded seat, the clamping block, and the plane where the clamping block is located. The distance data between the threaded seat and the clamping block is the hypotenuse of the right triangle, and the spacing data between the threaded seat and the plane where the clamping block is located is a right side. Calculate the angle between the hinged rod and the vertical direction and the distance data between the clamping block and the center of the threaded rod;

[0019] M2: Detect the displacement data of the four clamping blocks, compare the detected displacement data with the calculated distance data. If the absolute value of the difference between the detected displacement data and the calculated distance data is greater than the preset difference threshold, it is determined that the clamping is unstable, and the clamping pressure data is detected.

[0020] Preferably, the judgment steps for the reasons affecting stability by the number of places module are as follows:

[0021] S1: A number of pressure sensors are evenly installed on the clamping block from top to bottom, and the pressure sensors are numbered in the order from top to bottom. Record the pressure data detected at the positions of the clamping blocks in four directions, denoted as 、 、 and , 、 、 、 are the numbers of the pressure sensors in the corresponding directions respectively;

[0022] S2: If the pressure data detected by the four pressure sensors numbered are equal, it means that the clamping position of the clamping block on the gear is at the same horizontal position, then compare the pressure data; otherwise, generate a relaxation clamping signal and transmit the generated relaxation clamping signal to the number execution module; if the preset pressure threshold , it is determined that the unstable clamping is caused by the inaccurate position of the threaded seat, generate a rotation signal and transmit the rotation signal to the number execution module;

[0023] S3: When the position of the clamping block moves, resulting in a change in the pressure data between the clamping block and the gear, then a pressure acting force and displacement The relationship between them is , is the elastic coefficient, , is the contact area between the clamping block and the gear; the currently detected pressure data is , the displacement adjustment amount required to reach the preset pressure threshold; if the preset adjustment minimum value , it is determined that the calculated adjustment amount is not convenient for the number execution module to adjust, and the adjustment amount of the threaded rod is judged;

[0024] S4: The pitch of the thread on the threaded rod is , the number of turns of the threaded rod is , then the moving distance of the threaded sleeve on the threaded rod; the exposed length of the threaded rod is , then the spacing data between the thread seat and the plane where the clamping block is located , is the displacement change of the thread seat on the threaded rod; the number of turns the threaded rod needs to rotate to reach the preset pressure threshold ; if the preset minimum number of turns , then it is determined that the number of turns the threaded rod needs to rotate is ; otherwise, it is determined that the number of turns the threaded rod needs to rotate is .

[0025] Preferably, the gear grinding method includes the following steps:

[0026] K1: Determine the type of the gear to be processed. If it is an external gear, the motor drives the threaded rod to rotate forward, so that the thread seat moves upward on the threaded rod, causing the articulated rod rotatably connected to the thread seat to deflect at an angle under the push, so that the clamping block connected to the other end of the articulated rod is pushed to move horizontally outward, and the external gear is clamped from the inside;

[0027] K2: If it is an internal gear, the motor drives the threaded rod to rotate in the reverse direction, so that the thread seat moves downward on the threaded rod, causing the articulated rod rotatably connected to the thread seat to deflect at an angle under the push, so that the clamping block connected to the other end of the articulated rod is pushed to move horizontally inward, and the internal gear is clamped from the outside;

[0028] K3: During the clamping process, through the control component inside the controller, analyze the clamping stability of the clamping block and analyze the reasons for the unstable clamping. If the unstable reason is clamping error, generate a relaxation clamping signal; if the unstable reason is inaccurate adjustment, generate a rotation signal and transmit the generated signal to the digital execution module;

[0029] K4: After the digital execution module receives the relaxation clamping signal, control the motor to drive the threaded rod to rotate in the reverse direction first and then in the forward direction, repeat the operation for a set number of times, and then when the four pressure data detected by the pressure sensors in the four directions are equal and the detected pressure data is equal to the preset pressure threshold, generate a stop signal to control the motor to stop rotating;

[0030] K5: After the digital execution module receives the rotation signal, control the motor to drive the threaded rod to rotate forward, and when the pressure data detected by the pressure sensor is equal to the preset pressure threshold, generate a stop signal to control the motor to stop rotating.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] 1. Through the cooperation of the clamping mechanism and the external tooth positioning box, it is convenient for the clamping block to clamp and polish the external tooth gear, improving the practicability and realizing the ability to polish the external tooth gear. Then, through the cooperation of the clamping mechanism and the internal tooth positioning box, it is convenient for the external clamp to clamp and polish the internal tooth gear, improving the practicability and realizing the ability to polish the external tooth gear. Finally, the problem of the small applicable range of the clamping mechanism of the existing equipment is solved.

[0033] 2. The data collection module detects the distance, spacing and pressure data between the threaded seat and the clamping block, and then constructs a right triangle based on these data for analysis and calculation. The displacement data of the clamping block is compared with it to determine whether the clamping is stable. When the cause of instability is further explored; when a loose clamping signal is generated due to an incorrect clamping position, and a rotation signal is generated when the position of the threaded seat is inaccurate, so that the digital execution module performs corresponding operations according to the signal; through this precise control and adjustment mechanism, it is ensured that the clamping of the gear by the clamping block is always in a stable and horizontal state, avoiding the deviation of the polishing position caused by the clamping problem, effectively guaranteeing the machining accuracy of the gear, reducing the gear damage caused by the machining error, and improving the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0035] Figure 1 is a three-dimensional schematic diagram of the overall appearance of the device proposed by the present invention;

[0036] Figure 2 is a front view schematic diagram of the overall appearance of the device proposed by the present invention;

[0037] Figure 3 is a three-dimensional schematic diagram of the structure of the polishing assembly proposed by the present invention;

[0038] Figure 4 is a three-dimensional schematic diagram of the structure of the clamping mechanism proposed by the present invention;

[0039] Figure 5 is a three-dimensional schematic diagram of the structure of the transmission assembly proposed by the present invention;

[0040] Figure 6 is a system flow chart of the present invention.

[0041] Reference numerals in the figure: 1. Equipment box; 2. Equipment housing; 3. Equipment door; 4. Top plate; 5. Controller; 6. External tooth positioning box; 7. External tooth grinding wheel; 8. Internal tooth positioning box; 9. Internal tooth grinding wheel; 10. Rotating seat; 11. Rotating housing; 12. Guide plate; 13. Limit strip; 14. Hinge rod; 15. Top block; 16. Clamping block; 17. Telescopic rod; 18. Guide sleeve; 19. Threaded rod; 20. Motor. Detailed implementation mode

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0043] Embodiment: Refer to Figures 1-6 , a gear grinding machine and a gear grinding method thereof in the present invention include an equipment box 1. Four sides of the top surface of the equipment box 1 are fixedly connected with an equipment housing 2 in cooperation. One side of the front end surface of the equipment housing 2 is provided with a loading port. An equipment door 3 is arranged in the loading port. The top surface of the equipment housing 2 is fixedly connected with a top plate 4 in cooperation. The top plate 4 and the equipment box 1 are fixedly connected with an arc-shaped guide rail at the loading port of the equipment housing 2. The equipment door 3 is slidably connected in the arc-shaped guide rail. A controller 5 is installed on one side of the loading port of the equipment housing 2. Through the cooperation of the equipment housing 2 and the equipment door 3, it is convenient to protect the operator and improve safety; an clamping mechanism is arranged inside the equipment housing 2 on the top surface of the equipment box 1. An external tooth positioning box 6 is arranged behind the clamping mechanism. An external tooth grinding wheel 7 is installed on the front end surface of the external tooth positioning box 6. An internal tooth positioning box 8 is arranged on one side of the clamping mechanism. An internal tooth grinding wheel 9 is installed above one side of the internal tooth positioning box 8 facing the clamping mechanism. Through the cooperation of the clamping mechanism and the external tooth positioning box 6, it is convenient for the clamping block 16 to clamp and grind the external tooth gear, improving practicability. Then, through the cooperation of the clamping mechanism and the internal tooth positioning box 8, it is convenient to externally clamp and grind the internal tooth gear, improving practicability; the clamping mechanism includes a transmission component and a rotating seat 10. The inside of the rotating seat 10 is rotatably connected with a rotating housing 11. Four groups of guide plates 12 are evenly fixedly connected around the side surface of the rotating housing 11. There is a certain distance between each group of the guide plates 12. Through the cooperation of the rotating seat 10 and the rotating housing 11, it is convenient for the target gear to rotate and grind, improving practicability.

[0044] In the present invention, the transmission assembly includes a limiting strip 13. The outer end of the limiting strip 13 is inserted between the guide plates 12. An articulated rod 14 is hinged on the limiting strip 13. The other end of the articulated rod 14 is hinged on the hinge seat on the inner side of the top block 15. A clamping block 16 is fixedly connected to the top surface of the top block 15. A telescopic rod 17 is fixedly connected to the rear end of the hinge seat on the inner side of the top block 15. The other end of the telescopic rod 17 is slidably connected in a guide sleeve 18. Through the cooperation of the articulated rod 14 and the telescopic rod 17, it is convenient to drive the horizontal movement of the top block 15 and the clamping block 16, improving the practicability. The guide sleeve 18 is fixedly connected to a bearing seat. A threaded rod 19 is rotatably connected in the bearing seat. A threaded seat is in mating connection with the middle part of the outer side of the threaded rod 19. The limiting strip 13 is fixedly connected to the threaded seat. The bottom end of the threaded rod 19 is connected to a motor 20. The motor 20 is installed and fixed on a turntable. The turntable is rotatably connected to the bottom surface inside the equipment box 1. Through the cooperation of the motor 20 and the threaded rod 19, it is convenient to start the clamping mechanism, improving the practicability.

[0045] A control component is also arranged inside the controller 5. The control component includes a data acquisition module, a data processing module, and a data execution module;

[0046] Detect the distance data between the threaded seat and the clamping block 16, detect the displacement data of the threaded seat, and construct a right triangle with the threaded seat, the clamping block 16, and the plane where the clamping block 16 is located. The distance data between the threaded seat and the clamping block 16 is the hypotenuse of the right triangle, and the spacing data between the plane where the threaded seat and the clamping block 16 are located is a right side, and calculate the included angle between the articulated rod 14 and the vertical direction and the distance data between the clamping block 16 and the center of the threaded rod 19 ;

[0047] Detect the displacement data of the four clamping blocks 16, and compare the detected displacement data with the calculated distance data. If the absolute value of the difference between the detected displacement data and the calculated distance data is greater than the preset difference threshold, it is determined that the clamping is unstable, and the clamping pressure data is detected;

[0048] A number of pressure sensors are evenly installed on the clamping block 16 from top to bottom, and the pressure sensors are numbered in order from top to bottom. Record the pressure data detected at the positions of the clamping blocks 16 in four directions, denoted as 、 、 and ; 、 、 、 are the numbers of the pressure sensors in the corresponding directions respectively; If the number is If the pressure data detected by the four pressure sensors are equal, it indicates that the clamping position of the clamping block 16 on the gear is at the same horizontal position, and then the pressure data are compared; otherwise, a relaxation clamping signal is generated and the generated relaxation clamping signal is transmitted to the digital execution module; if the preset pressure threshold , it is determined that the unstable clamping is caused by the inaccurate position of the threaded seat, a rotation signal is generated and the rotation signal is transmitted to the digital execution module;

[0049] If the position movement of the clamping block 16 causes a change in the pressure data between the clamping block 16 and the gear, then a pressure acting force and displacement The relationship between them is , is the elastic coefficient, , , and is the contact area between the clamping block 16 and the gear; the currently detected pressure data is , and the displacement adjustment amount required to reach the preset pressure threshold is ; if the preset adjustment minimum value , it is determined that the calculated adjustment amount is not convenient for the digital execution module to adjust, and the adjustment amount of the threaded rod 19 is determined;

[0050] The pitch of the thread on the threaded rod 19 is , and the number of turns of the threaded rod 19 is , then the moving distance of the threaded sleeve on the threaded rod 19 is ; the exposed length of the threaded rod 19 is , then the spacing data between the threaded seat and the plane where the clamping block 16 is located is , is the displacement change amount of the threaded seat on the threaded rod 19; the number of turns required for the threaded rod 19 to rotate to reach the preset pressure threshold is ; if the preset minimum number of turns , it is determined that the number of turns that the threaded rod 19 needs to rotate is ; otherwise, it is determined that the number of turns that the threaded rod 19 needs to rotate is ;

[0051] The digital execution module receives the relaxation clamping signal, and then controls the motor 20 to drive the threaded rod 19 to rotate reversely first and then forward, repeating the operation for the set number of times. Then, when the four pressure data detected by the pressure sensors in the four directions are equal and the detected pressure data is equal to the preset pressure threshold, a stop signal is generated to control the motor 20 to stop rotating; the digital execution module receives the rotation signal, and then controls the motor 20 to drive the threaded rod 19 to rotate forward. When the pressure data detected by the pressure sensor is equal to the preset pressure threshold, a stop signal is generated to control the motor 20 to stop rotating.

[0052] Working principle: When the present invention is in use, first, power is supplied to all electrical equipment. Then, the equipment door 3 is pulled to one side to open the equipment shell 2. Then, the target gear is clamped. The target gear is placed above the clamping mechanism. Then, the motor 20 is started to drive the threaded rod 19. Since the limiting strip 13 is fixedly connected to the threaded seat on the threaded rod 19, the threaded seat will move up and down. When the target gear is an external gear, the threaded seat is driven to rise. The rising of the threaded seat drives the hinge rod 14 to deflect, thereby driving the top block 15 to move horizontally outwards under the action of the telescopic rod 17 and the guide sleeve 18 until the clamping block 16 tightly presses against the target external gear. Then, the external tooth positioning box 6 is started to drive the external tooth grinding wheel 7 to the zero position to complete the positioning. When the target gear is an internal gear, the threaded seat is driven to descend, so that the clamping block 16 moves horizontally inwards until the target internal gear is clamped. Then, the internal tooth positioning box 8 is started to drive the internal tooth grinding wheel 9 to the zero position to complete the positioning. Finally, the equipment door 3 is closed, and the set operation program is input through the controller 5 to automatically perform the grinding work.

[0053] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A gear grinding machine for gear processing, comprising an equipment box (1), characterized in that: On the periphery of the top surface of the equipment box (1), an equipment shell (2) is fixedly connected in a matching manner. On one side of the front end face of the equipment shell (2), a loading port is provided. An equipment door (3) is arranged in the loading port. On the top surface of the equipment shell (2), a top plate (4) is fixedly connected in a matching manner. An arc-shaped guide rail is fixedly connected to the top plate (4), the equipment box (1), and the loading port on the equipment shell (2). The equipment door (3) is slidably connected in the arc-shaped guide rail. On one side of the loading port of the equipment shell (2), a controller (5) is installed; A control component is further arranged inside the controller (5), and the control component includes a data acquisition module, a data processing module, and a data execution module; The data acquisition module detects the distance data between the threaded seat and the clamping block (16), the spacing data between the threaded seat and the plane where the clamping block (16) is located, and the pressure data of the clamping block (16), and transmits the detected distance data, spacing data, and pressure data to the data processing module; The data processing module processes and analyzes the distance data and the spacing data, compares them with the detected displacement data of the clamping block (16), determines whether the clamping of the gear is stable, and analyzes the reasons for instability when it is determined to be unstable. If the reason for instability is clamping error, a relaxation clamping signal is generated and transmitted to the data execution module; if the reason for instability is inaccurate adjustment, a rotation signal is generated and transmitted to the data execution module; The judgment steps for the reasons affecting stability are as follows: S1: A number of pressure sensors are evenly installed on the clamping block (16) from top to bottom, and the pressure sensors are numbered in the order from top to bottom. The pressure data detected at the positions of the clamping blocks (16) in four directions are recorded, denoted as , , and , , , , are the numbers of the pressure sensors in the corresponding directions respectively; S2: If the pressure data detected by the four pressure sensors numbered are equal, it indicates that the clamping positions of the clamping blocks (16) on the gear are at the same horizontal position, and then the pressure data are compared; otherwise, a relaxation clamping signal is generated and the generated relaxation clamping signal is transmitted to the digital execution module; If the preset pressure threshold is met, it is determined that the unstable clamping is caused by the inaccurate position of the threaded seat, a rotation signal is generated, and the rotation signal is transmitted to the digital execution module; S3: If the position movement of the clamping block (16) causes a change in the pressure data between the clamping block (16) and the gear, then a pressure acting force and displacement are related as , is the elastic coefficient, , is the contact area between the clamping block (16) and the gear; the currently detected pressure data is , and the displacement adjustment amount required to reach the preset pressure threshold; If the preset adjustment minimum value is reached, it is determined that the calculated adjustment amount is not convenient for the numerical control module to adjust, and the adjustment amount of the threaded rod (19) is determined; S4: The pitch of the thread on the threaded rod (19) is , and the number of turns of rotation of the threaded rod (19) is , then the moving distance of the threaded sleeve on the threaded rod (19) ; The exposed length of the threaded rod (19) is , then the spacing data between the threaded seat and the plane where the clamping block (16) is located , is the displacement change amount of the threaded seat on the threaded rod (19); the number of turns the threaded rod (19) needs to rotate to reach the preset pressure threshold , is the included angle data between the hinge rod (14) and the vertical direction; if the preset minimum number of turns , then it is determined that the number of turns the threaded rod (19) needs to rotate is ; otherwise, it is determined that the number of turns the threaded rod (19) needs to rotate is ; The data execution module receives the relaxation clamping signal and the rotation signal transmitted by the data processing module, and executes corresponding operations according to the signal types.

2. A gear grinding machine for gear processing according to claim 1, characterized in that: Inside the equipment shell (2) on the top surface of the equipment box (1), a clamping mechanism is arranged. Behind the clamping mechanism, an external tooth positioning box (6) is provided. On the front end face of the external tooth positioning box (6), an external tooth grinding wheel (7) is installed. On one side of the clamping mechanism, an internal tooth positioning box (8) is provided. Above the side of the internal tooth positioning box (8) facing the clamping mechanism, an internal tooth grinding wheel (9) is installed.

3. A gear grinding machine for gear processing according to claim 2, characterized in that: The clamping mechanism includes a transmission component and a rotating seat (10). Inside the rotating seat (10), a rotating shell (11) is rotatably connected. Four groups of guide plates (12) are evenly fixedly connected to the periphery of the side surface of the rotating shell (11). There is a certain distance between each group of the guide plates (12).

4. A gear grinding machine for gear processing according to claim 3, characterized in that: The transmission component includes a limiting strip (13). The outer end of the limiting strip (13) is inserted between the guide plates (12). An articulated rod (14) is hinged on the limiting strip (13). The other end of the articulated rod (14) is hinged on the hinge seat on the inner side surface of the top block (15).

5. A gear grinding machine for gear processing according to claim 4, characterized in that: On the top surface of the top block (15), a clamping block (16) is fixedly connected. At the rear end of the hinge seat on the inner side surface of the top block (15), a telescopic rod (17) is fixedly connected. The other end of the telescopic rod (17) is slidably connected in a guide sleeve (18).

6. A gear grinding machine for gear processing according to claim 5, characterized in that: The said guide sleeve (18) is fixedly connected to the bearing seat. A threaded rod (19) is rotatably connected inside the bearing seat. A threaded seat is fitted and connected to the middle part of the outer side of the threaded rod (19). A limiting strip (13) is fixedly connected to the threaded seat. The bottom end of the threaded rod (19) is connected to a motor (20). The motor (20) is installed and fixed on a turntable. The turntable is rotatably connected to the inner bottom surface of the equipment box (1).

7. A gear grinding machine for gear processing according to claim 6, characterized in that: The judgment steps for the clamping stability of several modules are as follows: M1: Construct a right triangle with the threaded seat, the clamping block (16), and the plane where the clamping block (16) is located. The distance data between the threaded seat and the clamping block (16) is the hypotenuse of the right triangle, and the spacing data between the threaded seat and the plane where the clamping block (16) is located is a right side, and calculate the angle between the articulated rod (14) and the vertical direction and the distance data between the clamping block (16) and the center of the threaded rod (19) ; M2: Detect the displacement data of the four clamping blocks (16), and compare the detected displacement data with the calculated distance data. If the absolute value of the difference between the detected displacement data and the calculated distance data is greater than the preset difference threshold, it is determined that the clamping is unstable, and the clamping pressure data is detected.

8. A gear grinding method for a gear grinding machine as described in any one of claims 1-7, characterized in that: The said gear grinding method includes the following steps: K1: Determine the type of the gear to be processed. If it is an external gear, the motor (20) drives the threaded rod (19) to rotate forward, so that the threaded seat moves upward on the threaded rod (19), causing the articulated rod (14) rotatably connected to the threaded seat to deflect at an angle under the push, so that the clamping block (16) connected to the other end of the articulated rod (14) is pushed to move horizontally outward, and the external gear is clamped from the inside. K2: If it is an internal gear, the motor (20) drives the threaded rod (19) to rotate reversely, so that the threaded seat moves downward on the threaded rod (19), causing the articulated rod (14) rotatably connected to the threaded seat to deflect at an angle under the push, so that the clamping block (16) connected to the other end of the articulated rod (14) is pushed to move horizontally inward, and the internal gear is clamped from the outside. K3: During the clamping process, through the control components inside the controller (5), analyze the clamping stability of the clamping block (16), and analyze the reasons for the unstable clamping. If the unstable reason is clamping error, generate a relaxation clamping signal; if the unstable reason is inaccurate adjustment, generate a rotation signal, and transmit the generated signal to the digital execution module. K4: After receiving the relaxation clamping signal, the digital execution module controls the motor (20) to drive the threaded rod (19) to rotate reversely first and then forward, repeat the operation for a set number of times. Then, when the four pressure data detected by the pressure sensors in the four directions are equal and the detected pressure data is equal to the preset pressure threshold, generate a stop signal and control the motor (20) to stop rotating. K5: After receiving the rotation signal, the digital execution module controls the motor (20) to drive the threaded rod (19) to rotate forward. When the pressure data detected by the pressure sensor is equal to the preset pressure threshold, generate a stop signal and control the motor (20) to stop rotating.

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