Gear grinding machine for gear machining and gear grinding method thereof

Abstract

The invention discloses a gear grinding machine for gear machining and a gear grinding method of the gear grinding machine, and relates to the technical field of gear grinding machines. Through cooperation of the clamping mechanism and the outer tooth positioning box, an outer tooth gear is conveniently clamped and polished, then through cooperation of the clamping mechanism and the inner tooth positioning box, an inner tooth gear is conveniently clamped and polished, and the problem that an existing equipment clamping mechanism is small in application range is solved; the data acquisition module is used for detecting the distance between the threaded seat and the clamping block, the distance between the threaded seat and the clamping block and compression data, then a right triangle is constructed according to the data for analysis and calculation, the displacement data of the clamping block is compared with the right triangle to judge whether clamping is stable or not, and reasons are further explored when clamping is unstable; by means of the accurate control and adjustment mechanism, it is guaranteed that the gear is clamped by the clamping blocks in a stable and horizontal state all the time, the grinding position deviation caused by the clamping problem is avoided, the machining precision of the gear is effectively guaranteed, gear damage caused by machining errors is reduced, and the product quality is improved.

Description

Technical Field

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

[0002] Gear is a common mechanical element used to transmit power and motion. It is composed of a disc or cylinder with multiple tooth grooves and usually meshes with other gears. Gear grinding machine is a gear processing machine tool that uses a grinding wheel as a grinding tool to process cylindrical gears or the tooth surface of some gear processing tools. Gear grinding machine is mainly used to eliminate deformation after heat treatment and improve gear accuracy. Existing gear grinding machines are usually limited by the clamping device and can only grind one type of tooth, which lacks versatility. When the gear to be ground is clamped, the non-level clamping of the gear and the unstable clamping will affect the grinding position of the grinding wheel on the gear. The inaccurate grinding position will easily cause damage to the gear. Therefore, this application needs to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a gear grinding machine and a gear grinding method for gear processing.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a gear grinding machine for gear processing and a gear grinding method thereof, comprising an equipment box, the top surface of the equipment box is fixedly connected with an equipment shell around the top surface, a loading port is opened on one side of the front end surface of the equipment shell, an equipment door is arranged in the loading port, a top plate is fixedly connected with the top surface of the equipment shell, the top plate and the equipment box are fixedly connected with an arc guide rail in cooperation with the loading port on the equipment shell, the equipment door is slidably connected in the arc guide rail, and a controller is installed on one side of the loading port of the equipment shell; The controller is also provided with a control component, which includes a data acquisition module, a data processing module and a data execution module; The data acquisition module detects the distance data between the thread seat and the clamping block, the spacing data between the thread 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 several modules; The digital control module processes and analyzes the distance data and the spacing data, and compares them with the detection displacement data of the clamping block to determine whether the clamping of the gear is stable. If it is determined to be unstable, the cause of the instability is analyzed; if the cause of the instability is a clamping error, a loose clamping signal is generated and transmitted to the digital control module; if the cause of the instability is inaccurate adjustment, a rotation signal is generated and transmitted to the digital control module; The digital execution module receives the loosening clamping signal and the rotation signal transmitted by the digital module, and performs corresponding operations according to the signal type.

[0005] Preferably, a clamping mechanism is provided inside the equipment shell on the top surface of the equipment box, an external tooth positioning box is provided behind the clamping mechanism, an external tooth grinding wheel is installed on the front end surface of the external tooth positioning box, an internal tooth positioning box is provided on one side of the clamping mechanism, and an internal tooth grinding wheel is installed on the upper side of the internal tooth positioning box facing the clamping mechanism.

[0006] Preferably, the clamping mechanism comprises a transmission assembly and a rotating seat, the inner side of the rotating seat is rotatably connected to a rotating shell, four groups of guide plates are evenly fixed around the side surface of the rotating shell, and each group of guide plates is spaced a distance apart.

[0007] Preferably, the transmission assembly comprises a limit bar, the outer end of which is inserted between the guide plates, and a hinge rod is hinged on the limit bar, and the other end of the hinge rod is hinged on a hinge seat on the inner side of the top block.

[0008] Preferably, a clamping block is fixedly connected to the top surface of the top block, a telescopic rod is fixedly connected to the rear end of the hinge seat on the inner side surface of the top block, and the other end of the telescopic rod is slidably connected in the guide sleeve.

[0009] Preferably, the guide sleeve is fixed on the bearing seat, a threaded rod is rotatably connected inside the bearing seat, a threaded seat is cooperatively connected to the middle of the outer side surface of the threaded rod, a limit strip is fixed on the threaded seat, the bottom end of the threaded rod is connected to the motor, the motor is mounted and fixed on the turntable, and the turntable is rotatably connected to the inner bottom surface of the equipment.

[0010] Preferably, the steps for determining the clamping stability of several modules are as follows: M1: Construct a right triangle with the thread seat, clamp block and the plane where the clamp block is located. The distance data between the thread seat and the clamp block The hypotenuse of the right triangle is the distance between the thread seat and the plane where the clamp is located. is a right-angled side, calculate the angle between the hinge rod and the vertical direction and the distance between the clamp and the center of the threaded rod ; M2: Detect the displacement data of the four clamping blocks 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.

[0011] Preferably, the steps for determining the reasons affecting stability in several modules are as follows: S1: Several pressure sensors are evenly installed on the clamp from top to bottom, and the pressure sensors are numbered in order from top to bottom. The pressure data detected at the clamp position in four directions are recorded and recorded as , , and , , , , They are the numbers of the pressure sensors in the corresponding directions; S2: If , it means that the clamping position of the clamp block on the gear is at the same horizontal position, then the pressure data are compared; otherwise, a loose clamping signal is generated and transmitted to the data execution module; if the preset pressure threshold , it is determined that the unstable clamping is caused by the inaccurate position of the thread seat, a rotation signal is generated, and the rotation signal is transmitted to the digital execution module; S3: The movement of the clamping block causes the pressure data between the clamping block and the gear to change, thus generating pressure The force With displacement The relationship between , is the elastic coefficient, , is the contact area between the clamp and the gear; the current detection pressure data is , the displacement adjustment 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 digital control module to adjust, and the adjustment amount of the threaded rod is determined; 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 is ; The exposed length of the threaded rod is , then the distance data between the thread seat and the plane where the clamp block is located is , is the displacement change of the threaded seat on the threaded rod; the number of turns of the threaded rod required to reach the preset pressure threshold ; If the minimum number of rotations is preset , then the number of turns the threaded rod needs to rotate is Otherwise, the number of turns the threaded rod needs to rotate is .

[0012] Preferably, the gear grinding method comprises the following steps: K1: Determine the type of gear to be processed. If it is an external gear, the motor drives the threaded rod to rotate in the positive direction, so that the threaded seat moves upward on the threaded rod, and the hinged rod connected to the threaded seat is pushed to deflect at an angle, so that the clamping block connected to the other end of the hinged rod is pushed outward to move horizontally, and the external gear is clamped from the inside; K2: If it is an internal gear, the motor drives the threaded rod to rotate in the opposite direction, so that the threaded seat moves downward on the threaded rod, and the hinged rod connected to the threaded seat is pushed to deflect at an angle, so that the clamping block connected to the other end of the hinged rod is pushed inward to move horizontally, and the internal gear is clamped from the outside; K3: During the clamping process, the control components inside the controller analyze the clamping stability of the clamping block and the causes of unstable clamping. If the cause of instability is clamping error, a loose clamping signal is generated; if the cause of instability is inaccurate adjustment, a rotation signal is generated and the generated signal is transmitted to the digital control module. K4: After the digital control module receives the loosening and clamping signal, it controls the motor to drive the threaded rod to rotate in the reverse direction first and then in the forward direction, repeating the operation for the set number of times. 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 to stop rotating; K5: After receiving the rotation signal, the digital control module controls the motor to drive the threaded rod to rotate in the forward direction. 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 to stop rotating.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the cooperation of the clamping mechanism and the external gear positioning box, it is convenient for the clamping block to clamp the external gear and grind it, which improves the practicality and realizes the ability to grind the external gear. Through the cooperation of the clamping mechanism and the internal gear positioning box, it is convenient for the external clamp to clamp the internal gear and grind it, which improves the practicality and realizes the ability to grind the external gear, and finally solves the problem of small application range of the clamping mechanism of the existing equipment; 2. The distance, spacing and pressure data between the thread seat and the clamp are detected through the digital acquisition module, and then a right triangle is constructed based on these data for analysis and calculation. The clamp displacement data is compared with it to determine whether the clamping is stable. If it is unstable, the cause is further explored. When the clamping position is wrong, a loose clamping signal is generated. When the thread seat position is inaccurate, a rotation signal is generated, so that the digital control module performs corresponding operations according to the signal. Through this precise control and adjustment mechanism, it is ensured that the clamping block always clamps the gear in a stable and horizontal state, avoiding the grinding position deviation caused by clamping problems, effectively ensuring the machining accuracy of the gear, reducing the gear damage caused by machining errors, and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary 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: Figure 1 This is a three-dimensional schematic diagram of the overall appearance of the device proposed by the present invention; Figure 2 This is a front view schematic diagram of the overall appearance of the device proposed by the present invention; Figure 3 A three-dimensional schematic diagram of the grinding assembly structure proposed by the present invention; Figure 4 It is a three-dimensional schematic diagram of the clamping mechanism structure proposed by the present invention; Figure 5 It is a three-dimensional schematic diagram of the transmission assembly structure proposed by the present invention; Figure 6 It is a system flow chart of the present invention.

[0015] Serial numbers in the figure: 1. Equipment box; 2. Equipment shell; 3. Equipment door; 4. Top plate; 5. Controller; 6. External gear positioning box; 7. External gear grinding wheel; 8. Internal gear positioning box; 9. Internal gear grinding wheel; 10. Rotating seat; 11. Rotating shell; 12. Guide plate; 13. Limiting strip; 14. Articulated rod; 15. Top block; 16. Clamp block; 17. Telescopic rod; 18. Guide sleeve; 19. Threaded rod; 20. Motor. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] Example: See Figure 1-6A gear grinding machine for gear processing and a gear grinding method thereof in the present invention include an equipment box 1, an equipment shell 2 is fixedly connected to the top surface of the equipment box 1 around the four sides, a loading port is opened on one side of the front end surface of the equipment shell 2, and an equipment door 3 is arranged in the loading port, a top plate 4 is fixedly connected to the top surface of the equipment shell 2, the top plate 4 and the equipment box 1 are fixedly connected to the loading port on the equipment shell 2 with an arc guide rail, the equipment door 3 is slidably connected in the arc guide rail, and a controller 5 is installed on one side of the loading port of the equipment shell 2. Through the cooperation of the equipment shell 2 and the equipment door 3, it is convenient to protect the operating personnel and improve the safety; a clamping mechanism is arranged inside the equipment shell 2 on the top surface of the equipment box 1, an external gear positioning box 6 is arranged behind the clamping mechanism, and an external gear grinding Wheel 7, an internal gear positioning box 8 is provided on one side of the clamping mechanism, and an internal gear grinding wheel 9 is installed on the upper side of the internal gear positioning box 8 facing the clamping mechanism. Through the cooperation of the clamping mechanism and the external gear positioning box 6, it is convenient for the clamping block 16 to clamp the external gear and grind it, which improves practicality. Through the cooperation of the clamping mechanism and the internal gear positioning box 8, it is convenient for the external clamp to clamp the internal gear and grind it, which improves practicality. The clamping mechanism includes a transmission assembly and a rotating seat 10, and the rotating seat 10 is rotatably connected to the inner side of the rotating seat 10. Four groups of guide plates 12 are evenly fixed around the side of the rotating shell 11. Each group of guide plates 12 is spaced a distance apart. Through the cooperation of the rotating seat 10 and the rotating shell 11, it is convenient to rotate and grind the target gear, which improves practicality.

[0018] In the present invention, the transmission assembly includes a limit bar 13, the outer end of the limit bar 13 is inserted between the guide plates 12, the limit bar 13 is hinged with a hinge rod 14, the other end of the hinge rod 14 is hinged to the hinge seat on the inner side of the top block 15, the top surface of the top block 15 is fixed with a clamping block 16, the rear end of the hinge seat on the inner side of the top block 15 is fixed with a telescopic rod 17, the other end of the telescopic rod 17 is slidably connected in the guide sleeve 18, and the top block 15 is conveniently driven by the cooperation of the hinge rod 14 and the telescopic rod 17. 5 and the horizontal movement of the clamping block 16 improves practicality; the guide sleeve 18 is fixedly connected to the bearing seat, and a threaded rod 19 is rotatably connected inside the bearing seat. The middle part of the outer side of the threaded rod 19 is matched and connected with a threaded seat, and a limit strip 13 is fixedly connected to the threaded seat. The bottom end of the threaded rod 19 is connected to a motor 20, and the motor 20 is installed and fixed on the turntable. The turntable is rotatably connected to the bottom surface of the equipment box 1. Through the cooperation of the motor 20 and the threaded rod 19, it is easy to start the clamping mechanism, which improves practicality.

[0019] The controller 5 is also provided with a control component, which includes a data acquisition module, a data processing module and a data execution module; The distance data between the thread seat and the clamp block 16 is detected, and the displacement data of the thread seat is detected. A right triangle is constructed with the thread seat, the clamp block 16 and the plane where the clamp block 16 is located. The hypotenuse of the right triangle is the distance between the thread seat and the plane where the clamp block 16 is located. is a right-angle side, and the angle between the hinge rod 14 and the vertical direction is calculated And the distance data between the clamp block 16 and the center of the threaded rod 19 ; The displacement data of the four clamping blocks 16 are detected, and the detected displacement data is compared 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 a preset difference threshold, it is determined that the clamping is unstable, and the clamping pressure data is detected; A number of pressure sensors are evenly installed on the clamp block 16 from top to bottom, and the pressure sensors are numbered in order from top to bottom. The pressure data detected at the position of the clamp block 16 in four directions are recorded and recorded as , , and , , , , are the numbers of the pressure sensors in the corresponding directions; if , it means that the clamping position of the clamp block 16 on the gear is at the same horizontal position, then the pressure data are compared; otherwise, a loose clamping signal is generated and transmitted to the data execution module; if the preset pressure threshold , it is determined that the unstable clamping is caused by the inaccurate position of the thread seat, a rotation signal is generated, and the rotation signal is transmitted to the digital execution module; The movement of the clamp block 16 causes the pressure data between the clamp block 16 and the gear to change, thus generating pressure The force With displacement The relationship between , is the elastic coefficient, , is the contact area between the clamp block 16 and the gear; the current detection pressure data is , the displacement adjustment 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 digital control module to adjust, and the adjustment amount of the threaded rod 19 is determined; The pitch of the thread on the threaded rod 19 is , the number of rotations 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 distance data between the thread seat and the plane where the clamp block 16 is located is , is the displacement change of the threaded seat on the threaded rod 19; the number of turns of the threaded rod 19 required to reach the preset pressure threshold ; If the minimum number of rotations is preset , then 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 ; The digital control module receives the loosening and clamping signal, and then controls the motor 20 to drive the threaded rod 19 to rotate in the reverse direction first and then in the forward direction, and repeats the operation for a set number of times. 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 control module receives the rotation signal, and then controls the motor 20 to drive the threaded rod 19 to rotate in the forward direction. 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.

[0020] Working principle: When the present invention is used, firstly, power is supplied to all electrical equipment, then the equipment door 3 is pulled to one side to open the equipment shell 2, and then the target gear is clamped, and the target gear is mounted above the clamping mechanism, and then the motor 20 is started to drive the threaded rod 19. Since the threaded seat on the threaded rod 19 is fixedly connected to the limit strip 13, the threaded seat will move up and down. When the target gear is an external gear, the threaded seat is driven to rise, and the rise of the threaded seat drives the hinge rod 14 to deflect the angle, thereby driving the top block 15 to move horizontally outward under the action of the telescopic rod 17 and the guide sleeve 18, until the clamping block 16 presses the target external gear, and then the external gear positioning box 6 is started to drive the external gear 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 inward until the target internal gear is clamped, and then the internal gear positioning box 8 is started to drive the internal gear grinding wheel 9 to the zero position to complete the positioning, and finally the equipment door 3 is closed, and the grinding work can be automatically performed by inputting the set operating program through the controller 5.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gear grinding machine for gear processing, comprising an equipment box (1), characterized in that: The top surface of the equipment box (1) is fixedly connected to an equipment shell (2) on all sides, a loading port is provided on one side of the front end surface of the equipment shell (2), an equipment door (3) is provided in the loading port, a top plate (4) is fixedly connected to the top surface of the equipment shell (2), the top plate (4) and the equipment box (1) are fixedly connected to an arc-shaped guide rail in cooperation with the loading port on the equipment shell (2), the equipment door (3) is slidably connected in the arc-shaped guide rail, and a controller (5) is installed on one side of the loading port of the equipment shell (2); The controller (5) is also provided with a control component, which includes a data acquisition module, a data processing module and a data execution module; A data acquisition module detects distance data between the threaded seat and the clamping block (16), spacing data between the threaded seat and the plane where the clamping block (16) is located, and pressure data of the clamping block (16), and transmits the detected distance data, spacing data, and pressure data to several modules; The digital control module processes and analyzes the distance data and the spacing data, and compares them with the detection displacement data of the clamp block (16), determines whether the clamping of the gear is stable, and when it is determined to be unstable, analyzes the cause of the instability; if the cause of the instability is a clamping error, generates a loose clamping signal, and transmits the generated loose clamping signal to the digital control module; if the cause of the instability is an inaccurate adjustment, generates a rotation signal, and transmits the rotation signal to the digital control module; The digital execution module receives the loosening clamping signal and the rotation signal transmitted by the digital module, and performs corresponding operations according to the signal type.

2. A gear grinding machine for gear processing according to claim 1, characterized in that: A clamping mechanism is provided inside the device shell (2) on the top surface of the device box (1); an external gear positioning box (6) is provided behind the clamping mechanism; an external gear grinding wheel (7) is installed on the front end surface of the external gear positioning box (6); an internal gear positioning box (8) is provided on one side of the clamping mechanism; an internal gear grinding wheel (9) is installed on the upper side of the internal gear positioning box (8) facing the clamping mechanism.

3. A gear grinding machine for gear processing according to claim 2, characterized in that: The clamping mechanism comprises a transmission assembly and a rotating seat (10), wherein a rotating shell (11) is rotatably connected to the inner side of the rotating seat (10), and four groups of guide plates (12) are evenly fixedly connected to the sides of the rotating shell (11), and each group of guide plates (12) is spaced a distance apart.

4. A gear grinding machine for gear machining according to claim 3, characterized in that: The transmission assembly comprises a limit bar (13), the outer end of the limit bar (13) is inserted between the guide plates (12), a hinge rod (14) is hinged on the limit bar (13), and the other end of the hinge rod (14) is hinged on a hinge seat on the inner side of the top block (15).

5. A gear grinding machine for gear processing according to claim 4, characterized in that: 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), and the other end of the telescopic rod (17) is slidably connected in the guide sleeve (18).

6. A gear grinding machine for gear machining according to claim 5, characterized in that: The 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 cooperatively connected to the middle of the outer side surface of the threaded rod (19), a limit strip (13) is fixedly connected to the threaded seat, the bottom end of the threaded rod (19) is connected to the motor (20), the motor (20) is mounted and fixed on the turntable, and the turntable is rotatably connected to the inner bottom surface of the equipment box (1).

7. A gear grinding machine for gear machining according to claim 6, characterized in that: The steps for judging the clamping stability of several modules are as follows: M1: A right triangle is constructed with the threaded seat, the clamp (16) and the plane where the clamp (16) is located. The distance data between the threaded seat and the clamp (16) is The hypotenuse of the right triangle is the distance between the thread seat and the plane where the clamp (16) is located. is a right-angled side, and the angle between the hinge rod (14) and the vertical direction is calculated. The distance between the clamp (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 a preset difference threshold, it is determined that the clamping is unstable, and the clamping pressure data is detected.

8. A gear grinding machine for gear machining according to claim 7, characterized in that: The steps to determine the reasons affecting the stability of several modules are as follows: S1: A plurality of pressure sensors are evenly installed on the clamp (16) from top to bottom, and the pressure sensors are numbered in order from top to bottom. The pressure data detected at the position of the clamp (16) in four directions are recorded and recorded as , , and , , , , They are the numbers of the pressure sensors in the corresponding directions; S2: If , it means that the clamping position of the clamp block (16) on the gear is at the same horizontal position, and the pressure data are compared; otherwise, a loose clamping signal is generated and 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 thread seat, a rotation signal is generated, and the rotation signal is transmitted to the digital execution module; S3: The movement of the clamp (16) causes the pressure data between the clamp (16) and the gear to change, thus generating pressure The force With displacement The relationship between , is the elastic coefficient, , is the contact area between the clamp (16) and the gear; the current detection pressure data is , the displacement adjustment required to reach the preset pressure threshold ; If the preset adjustment minimum , it is determined that the calculated adjustment amount is not convenient for the digital 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 , the number of revolutions 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 distance between the threaded seat and the plane where the clamp (16) is located is , is the displacement change of the threaded seat on the threaded rod (19); the number of turns of the threaded rod (19) required to reach the preset pressure threshold ; If the minimum number of rotations is preset , then the number of turns that the threaded rod (19) needs to rotate is Otherwise, the number of turns that the threaded rod (19) needs to rotate is .

9. A gear grinding method using a gear grinding machine for gear machining according to any one of claims 1 to 8, characterized in that: The gear grinding method comprises 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 in the positive direction, so that the threaded seat moves upward on the threaded rod (19), so that the hinged rod (14) rotatably connected to the threaded seat is pushed to deflect an angle, so that the clamping block (16) connected to the other end of the hinged rod (14) is pushed outward to move horizontally, 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 in the opposite direction, so that the threaded seat moves downward on the threaded rod (19), so that the hinged rod (14) rotatably connected to the threaded seat is pushed to deflect an angle, so that the clamping block (16) connected to the other end of the hinged rod (14) is pushed inward to move horizontally, thereby clamping the internal gear from the outside; K3: During the clamping process, the clamping stability of the clamping block (16) is analyzed through the control components inside the controller (5), and the cause of the unstable clamping is analyzed. If the cause of the instability is a clamping error, a loose clamping signal is generated; if the cause of the instability is an inaccurate adjustment, a rotation signal is generated and the generated signal is transmitted to the digital control module; K4: After the digital control module receives the loosening and clamping signal, the control motor (20) drives the threaded rod (19) to rotate in the reverse direction first and then in the forward direction, and repeats the operation for a set number of times. 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; K5: After receiving the rotation signal, the digital control module controls the motor (20) to drive the threaded rod (19) to rotate in the forward direction. 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.

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