A positioning clamping device for gear grinding and clamping method thereof

Abstract

The present invention relates to the technical field of mechanical processing clamping, and specifically to a positioning clamping device for gear grinding and a clamping method thereof, comprising a base, a support frame, a mounting assembly and a clamping assembly, wherein the mounting assembly comprises a mounting rod, a plurality of sliding blocks, a rotating disk and a driver, wherein the rotating disk is rotatably arranged on one side of the support frame, the driver is used to drive the rotating disk to rotate, the plurality of sliding blocks are respectively slidably arranged in a plurality of inclined grooves of the mounting rod, the clamping assembly comprises a pusher, a rotating rod, a pushing rod and a pushing head, the pusher is slidably arranged on the base, the rotating rod is arranged on the pusher, the pushing rod is rotatably connected to the rotating rod, the pushing head is fixed on the pushing rod and is used to push the sliding block to slide along the inclined groove to fix the gear to be ground, thereby being able to fix and process gears with different inner ring sizes, thereby improving the versatility of the fixture and reducing the manufacturing cost.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing clamping, and in particular to a positioning clamping device for gear grinding and a clamping method thereof. Background Art

[0002] A gear grinding fixture is a mechanical device designed to hold a gear for efficient and precise grinding operations. It is usually designed to ensure that the gear remains stable during the grinding process to achieve a uniform and precise surface treatment, thereby ensuring the working performance and life of the gear.

[0003] This device generally consists of a sturdy base with adjustable clamps or chucks mounted on it. These clamps can accommodate different sizes and types of gears. To provide a firm grip, the clamps may contain rubber pads or other non-slip materials inside to prevent the gear from shifting during the grinding process.

[0004] However, the existing devices are generally customized for a gear of a specific specification, so that they are dedicated to fixing this type of gear, while other clamps are required to clamp other gears, which increases the production cost. Summary of the invention

[0005] The object of the present invention is to provide a positioning clamping device for gear grinding and a clamping method thereof, so as to be able to fix and process gears with different inner ring sizes, improve the versatility of the clamp and reduce the manufacturing cost.

[0006] To achieve the above-mentioned objectives, in the first aspect, the present invention provides a positioning and clamping device for gear grinding, comprising a base, a support frame, a mounting assembly and a clamping assembly, the support frame is fixedly connected to the base and is located at the top of the support frame, the mounting assembly comprises a mounting rod, a plurality of sliding blocks, a rotating disk and a driver, the rotating disk is rotatably arranged on one side of the support frame, the driver is used to drive the rotating disk to rotate, and the plurality of sliding blocks are respectively slidably arranged in a plurality of inclined grooves of the mounting rod, the clamping assembly comprises a pusher, a rotating rod, a pushing rod and a pushing head, the pusher is slidably arranged on the base, the rotating rod is arranged on the pusher, the pushing rod is rotatably connected to the rotating rod, the pushing head is fixed on the pushing rod, and is used to push the sliding block to slide along the inclined groove to fix the gear to be ground.

[0007] Wherein, the driver comprises a rotating motor, a first gear and a ring gear, the ring gear is fixed to the outer side of the rotating disk, the first gear is meshed with the ring gear, and the output end of the rotating motor is connected to the first gear.

[0008] Among them, the sliding block includes a sliding block body, a locking block and a spring piece, the locking block is slidably arranged in the sliding block body, the spring piece is arranged between the sliding block body and the locking block, and a rotatable connecting rod is arranged on the pushing head corresponding to the locking block, and a hook head is arranged at the end of the connecting rod.

[0009] The pusher comprises a driving screw, a moving block and a driving motor, the moving block is slidably arranged on the base, the driving screw is threadedly connected to the moving block, and the output end of the driving motor is fixedly connected to the driving screw.

[0010] Wherein, the clamping assembly further comprises a limiter, which is arranged on one side of the mounting rod and is used to limit the clamped gear to be polished.

[0011] Among them, the limiter includes two supporting plates, two moving rods, a limiting seat and a second screw rod, the limiting seat is fixed on the base, the two moving rods are slidably arranged on both sides of the gear to be polished, the two supporting plates are arranged on the two moving rods, the second screw rod has two opposite thread sections, and the second screw rod is threadedly connected to the two moving rods.

[0012] Wherein, the limiter further comprises two limit rings, and the two limit rings are rotatably arranged on the two support plates.

[0013] Wherein, the positioning and clamping device for gear grinding also includes an impurity collecting component, and the impurity collecting component is arranged on the base.

[0014] In a second aspect, the present invention further provides a positioning and clamping method for gear grinding, comprising: placing the gear to be ground on the mounting rod;

[0015] The pusher is started to drive the push head to approach the sliding block, so that the sliding block slides along the inclined groove under the action of the push head to contact and fix with the inner ring of the gear;

[0016] The driver drives the rotating disk to rotate so as to drive the gear to be polished to rotate so as to enter the polishing state.

[0017] In the positioning and clamping device for gear grinding and the clamping method thereof, the base serves as the basic structure of the entire device, providing stability and bearing capacity to support all other components. It is combined with the support frame through a fixed connection method to ensure the rigidity of the overall structure. The support frame is located above the base and provides a solid support platform for the upper mounting components.

[0018] The mounting assembly is a key part in achieving gear positioning. It includes a mounting rod, multiple sliding blocks, a rotating disk, and a driver. The rotating disk is located on one side of the support frame and can rotate around its axis. The driver is responsible for providing power for the rotating disk to rotate, so that the rotating disk can change its angle or position during processing. The mounting rod is provided with multiple inclined grooves, and sliding blocks are slidably arranged in these inclined grooves.

[0019] The clamping assembly is the part directly responsible for fixing the gear to be polished, which includes a pusher, a rotating rod, a push rod and a push head. The pusher is mounted on the base and can slide along the surface of the base, which allows it to move closer to or farther away from the gear. The rotating rod is attached to the pusher, and the push rod forms a rotatable connection with the rotating rod. The push head is fixed to the end of the push rod. Its function is to directly contact the sliding block, and by applying pressure, the sliding block moves inward along the inclined groove, and then fits tightly to the inner ring of the gear to be polished, ensuring stability and safety during the polishing process, so that gears with different inner ring sizes can be fixed and processed, improving the versatility of the fixture and reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural diagram of a positioning and clamping device for gear grinding of the present invention.

[0022] Figure 2 It is a right side structural diagram of a positioning clamping device for gear grinding of the present invention.

[0023] Figure 3 It is a left side structural diagram of a positioning clamping device for gear grinding of the present invention.

[0024] Figure 4 It is a top structural diagram of a positioning clamping device for gear grinding of the present invention.

[0025] Figure 5 It is a cross-sectional structural diagram of a positioning clamping device for gear grinding of the present invention.

[0026] Figure 6 yes Figure 5 A partial enlargement of detail A.

[0027] Figure 7 The present invention is a flow chart of a positioning and clamping method for gear grinding.

[0028] Base 101, support frame 102, mounting assembly 103, clamping assembly 104, mounting rod 105, sliding block 106, rotating disk 107, driver 108, pusher 109, rotating rod 110, pushing rod 111, pushing head 112, rotating motor 113, first gear 114, ring gear 115, sliding block body 116, locking block 117, spring piece 118, driving screw 119, moving block 120, driving motor 121, limiter 122, support disk 123, moving rod 124, limiting seat 125, second screw 126, limiting ring 127, impurity collecting assembly 128, thrust controller 129, pressure detection unit 130, data processing unit 131, control unit 132, baffle 133, collecting trough 134, connecting rod 135, hook head 136. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0031] First embodiment

[0032] See also Figure 1 to Figure 6The present invention provides a positioning and clamping device for gear grinding, comprising a base 101, a support frame 102, a mounting assembly 103 and a clamping assembly 104. The support frame 102 is fixedly connected to the base 101 and is located on the top of the support frame 102. The mounting assembly 103 comprises a mounting rod 105, a plurality of sliding blocks 106, a rotating disk 107 and a driver 108. The rotating disk 107 is rotatably arranged on one side of the support frame 102. The driver 108 is used to drive the rotating disk 107 to rotate. The sliding blocks 106 are respectively slidably arranged in multiple oblique grooves of the mounting rod 105. The clamping assembly 104 includes a pusher 109, a rotating rod 110, a pushing rod 111 and a pushing head 112. The pusher 109 is slidably arranged on the base 101. The rotating rod 110 is arranged on the pusher 109. The pushing rod 111 is rotatably connected to the rotating rod 110. The pushing head 112 is fixed on the pushing rod 111 and is used to push the sliding block 106 to slide along the oblique groove to fix the gear to be polished.

[0033] In this embodiment, the base 101 serves as the basic structure of the entire device, providing stability and bearing capacity to support all other components. It is combined with the support frame 102 through a fixed connection to ensure the rigidity of the overall structure. The support frame 102 is located above the base 101 and provides a solid support platform for the mounting assembly 103 above.

[0034] The mounting assembly 103 is a key part for realizing the positioning of the gear, and it includes a mounting rod 105, a plurality of sliding blocks 106, a rotating disk 107 and a driver 108. The rotating disk 107 is located on one side of the support frame 102 and can rotate around its axis. The driver 108 is responsible for providing power for the rotating action of the rotating disk 107, so that the rotating disk 107 can change its angle or position during processing. The mounting rod 105 is provided with a plurality of inclined grooves, and the sliding blocks 106 are respectively slidably arranged in these inclined grooves.

[0035] The clamping assembly 104 is directly responsible for fixing the gear to be polished, and includes a pusher 109, a rotating rod 110, a pushing rod 111 and a pushing head 112. The pusher 109 is mounted on the base 101 and can slide along the surface of the base 101, which allows it to move closer to or farther away from the gear. The rotating rod 110 is attached to the pusher 109, and the pushing rod 111 forms a rotatable connection with the rotating rod 110. The pushing head 112 is fixed to the end of the pushing rod 111, and its function is to directly contact the sliding block 106, and by applying pressure, the sliding block 106 moves inward along the inclined groove, and then fits tightly to the inner ring of the gear to be polished, ensuring stability and safety during the polishing process, so that gears with different inner ring sizes can be fixed and processed, improving the versatility of the fixture and reducing manufacturing costs.

[0036] The driver 108 includes a rotating motor 113 , a first gear 114 and a ring gear 115 . The ring gear 115 is fixed to the outer side of the rotating disk 107 . The first gear 114 meshes with the ring gear 115 . The output end of the rotating motor 113 is connected to the first gear 114 .

[0037] The ring gear 115 is fixedly mounted on the outer edge of the rotating disk 107 to ensure that the two move synchronously. The first gear 114 is tightly meshed with the ring gear 115. When the rotating motor 113 is started, its output end directly drives the first gear 114 to rotate. Due to the meshing relationship between the first gear 114 and the ring gear 115, this rotation action will be transmitted to the ring gear 115, thereby driving the entire rotating disk 107 to rotate together. This transmission method not only ensures the smoothness and accuracy of the rotation, but also through the appropriate gear ratio setting, it can achieve effective control of the rotation speed and torque to meet different grinding requirements.

[0038] The sliding block 106 includes a sliding block body 116, a locking block 117 and a spring piece 118. The locking block 117 is slidably arranged in the sliding block body 116. The spring piece 118 is arranged between the sliding block body 116 and the locking block 117. A rotatable connecting rod is arranged on the pushing head 112 corresponding to the locking block 117, and a hook head is arranged at the end of the connecting rod.

[0039] In order to automatically release the polished gear after polishing is completed, a hook head is provided on the connecting rod, so that when the pushing head 112 approaches, the hook head contacts the mounting rod 105 and rotates to cooperate with the locking block 117 to clamp, and then the pushing head 112 continues to move to drive the sliding block 106 to fix the gear to be polished. After the polishing is completed, when the pushing head 112 retreats, it will drive the locking block 117 to squeeze the elastic sheet, and at the same time drive the sliding block body 116 diagonally downward to break away from the contact with the gear, and then the pushing head 112 moves further to squeeze the elastic sheet, so that the connecting rod rotates to break away from the contact with the locking block 117, so that the pushing head 112 can be reset.

[0040] The pusher 109 includes a driving screw 119 , a moving block 120 and a driving motor 121 . The moving block 120 is slidably disposed on the base 101 . The driving screw 119 is threadedly connected to the moving block. The output end of the driving motor 121 is fixedly connected to the driving screw 119 .

[0041] The driving screw 119 is the core transmission component of the pusher 109, and is threadedly connected to the moving block 120 through its thread structure. When the driving screw 119 rotates, due to the effect of the thread, the rotational motion can be converted into linear motion, thereby driving the moving block 120 to move forward or backward smoothly along the guide rail on the base 101.

[0042] The moving block is the part directly involved in the movement, and it is designed to slide smoothly in the track set on the base 101. In order to reduce friction and ensure smooth sliding, rolling bearings or other forms of low-friction guides may be installed between the moving block and the base 101. An internal threaded hole matching the drive screw 119 is provided inside the moving block, so that the two can fit closely. When the drive screw 119 rotates, the moving block will move forward or backward accordingly according to the direction of rotation of the screw.

[0043] The driving motor 121 provides the necessary driving force to rotate the driving screw 119. The output end of the driving motor 121 is fixedly connected to the driving screw 119. This direct connection not only simplifies the mechanical structure and reduces energy loss, but also improves the transmission efficiency.

[0044] The clamping assembly 104 further includes a limiter 122 , which is disposed on one side of the mounting rod 105 and is used to limit the position of the clamped gear to be polished.

[0045] The stopper 122 is installed on one side of the mounting rod 105. Its main function is to provide additional positioning and stability after the gear is clamped to prevent the gear from moving or deflecting unnecessarily during the grinding process. This design is crucial to ensure grinding quality, improve work efficiency and ensure operational safety.

[0046] The limiter 122 includes two support plates 123, two moving rods 124, a limit seat 125 and a second screw 126. The limit seat 125 is fixed on the base 101. The two moving rods 124 are slidably arranged on both sides of the gear to be polished. The two support plates 123 are arranged on the two moving rods 124. The second screw 126 has two opposite threads. The second screw 126 is threadedly connected to the two moving rods 124.

[0047] The limiter 122 includes two support plates 123 and two moving rods 124, which are respectively located on both sides of the gear to be polished. Each moving rod 124 can slide in a direction perpendicular to the axis of the gear so that it can be adjusted according to gears of different sizes. The support plates 123 are fixed to the ends of the moving rods 124 to directly contact the edges of the gears. These support plates 123 are carefully designed to fit tightly to the surface of the gears without causing damage to them. In addition, the combination of the support plates 123 and the moving rods 124 provides sufficient support force to ensure that the gears remain stable during the entire polishing process.

[0048] The stopper seat 125 is firmly fixed on the base 101 as the foundation of the entire stopper 122, providing a stable support platform for other components. The second screw 126 is the core transmission component of the stopper 122, and it has two opposite threads, which are respectively threadedly connected with the two moving rods 124. When the second screw 126 rotates, due to the opposite directions of the threads at both ends, this will cause the two moving rods 124 to move inward or outward at the same time, thereby driving the support plate 123 to move closer to or away from the gear.

[0049] The limiter 122 further includes two limit rings 127 , and the two limit rings 127 are rotatably disposed on the two support plates 123 .

[0050] In order to further enhance the functionality and adaptability of the stopper 122, a rotatable stopper ring 127 is installed on each support plate 123. The two stopper rings 127 can not only rotate freely around the support plate 123, but also adjust the angle as needed to better fit the different shapes and sizes of gears. The design of the stopper ring 127 increases the flexibility of the stopper 122, making it applicable to various types of gears, whether spur gears or helical gears, and can be effectively limited and protected.

[0051] The positioning and clamping device for gear grinding further includes an impurity collecting component 128 , and the impurity collecting component 128 is disposed on the base 101 .

[0052] The impurity collecting assembly 128 includes a baffle 133 and a collecting tank 134 . The collecting tank 134 is disposed on the base 101 , and the baffle 133 is disposed on one side of the collecting tank 134 .

[0053] The impurity collection assembly 128 is mainly composed of a baffle 133 and a collection tank 134. The collection tank 134 is directly disposed on the base 101, below the gear grinding area, and is used to receive and contain metal debris, grinding wheel powder and other possible impurities that fall off the gear surface. The design of the collection tank 134 takes into account capacity and easy cleaning, and is usually made of materials that are easy to disassemble and clean to facilitate regular maintenance.

[0054] The baffle 133 is installed on one side of the collection tank 134 and acts as a barrier. Its presence can prevent splashes or light particles generated during the grinding process from spreading into the surrounding environment, and also help guide these substances into the collection tank 134. The height and shape of the baffle 133 can be adjusted according to actual needs to adapt to gears of different sizes and different grinding operation requirements.

[0055] The clamping assembly 104 also includes a thrust controller 129, which includes a pressure detection unit 130, a data processing unit 131 and a control unit 132. The pressure detection unit 130 is arranged on the rotating rod 110, the data processing unit 131 is connected to the pressure detection unit 130, and the control unit 132 is connected to the data processing unit 131, and is used to control the power of the drive motor 121.

[0056] To ensure the safety and accuracy of the gear during grinding, an advanced thrust controller 129 is also integrated into the clamping assembly 104. The controller not only improves the grinding quality, but also enhances the intelligence level of the entire system.

[0057] One of the core components of the thrust controller 129 is the pressure detection unit 130, which is mounted on the rotating rod 110 and can monitor the clamping force applied to the gear in real time. This unit uses a high-precision pressure sensor that can accurately measure pressure changes within a small range to ensure that each clamping action can provide appropriate force, so that the gear will not be damaged due to over-tightening, nor will the gear slip or shift due to over-loosening.

[0058] The data processing unit 131 is closely connected to the pressure detection unit 130 and is responsible for receiving, analyzing and processing the data signal from the pressure sensor. This unit has powerful computing power and fast response characteristics, and can evaluate the current clamping state in real time and determine whether it needs to be adjusted according to preset standards. The data processing unit 131 can also store historical data for subsequent analysis and help optimize the grinding process parameters.

[0059] The control unit 132 is connected to the data processing unit 131 and is responsible for executing specific control instructions. Based on the received data processing results, the control unit 132 can intelligently adjust the power output of the drive motor 121, thereby dynamically adjusting the clamping force provided by the clamping assembly 104. For example, when it is detected that the clamping force is insufficient, it can increase the motor power to enable the pusher 109 to apply a greater thrust; conversely, if the clamping force is too large, the motor power will be reduced to reduce the pressure. This closed-loop control system ensures that the clamping force is always maintained within an ideal range, thereby improving the safety and reliability of the grinding operation.

[0060] Second embodiment

[0061] See also Figure 7 The present invention also provides a positioning and clamping method for gear grinding, comprising:

[0062] S201: placing the gear to be polished on the mounting rod 105;

[0063] The gear to be polished is placed on the mounting rod 105. During this process, it is necessary to ensure that the axis of the gear is aligned with the center of the mounting rod 105 to ensure balance and stability during subsequent rotation. In order to facilitate placement and adjustment, auxiliary guide devices or marks can be set around the mounting rod 105 to help the operator accurately complete the initial positioning of the gear.

[0064] S202: starting the pusher 109 to drive the push head 112 to approach the sliding block 106, so that the sliding block 106 slides along the inclined groove under the action of the push head 112 to contact and fix with the inner ring of the gear;

[0065] Next, the pusher 109 is started, so that it drives the push head 112 to gradually approach the sliding block 106. As the push head 112 moves forward, it contacts the sliding block 106 and applies a certain thrust. Since the sliding block 106 is located in the inclined groove of the mounting rod 105, after being acted upon by the push head 112, the sliding block 106 will slide in a specific direction in the inclined groove. This design cleverly utilizes the geometric characteristics of the inclined groove, so that the sliding block 106 can gradually move toward the inner ring of the gear, and finally closely contact the inner edge of the gear and form a preliminary clamping.

[0066] S203 The driver 108 drives the rotating disk 107 to rotate so as to drive the gear to be polished to rotate to enter the polishing state.

[0067] The last step is to start the driver 108 to make the rotating disk 107 start to rotate. The rotating motor 113 in the driver 108 transmits the rotational power to the rotating disk 107 through the meshing of the first gear 114 and the ring gear 115. As the rotating disk 107 rotates, the gears will also rotate synchronously and enter the grinding state. At this time, the rotation speed of the rotating disk 107 can be set according to actual needs to adapt to different types of gears and different grinding requirements.

[0068] During the rotation of the rotating disk 107, the stopper 122 can be used to ensure the stable position of the gear. The support disk 123 and the stop ring 127 in the stopper 122 will automatically adjust according to the size and shape of the gear to provide additional lateral support for the gear to prevent it from shifting or vibrating during rotation. In addition, the thrust controller 129 monitors the clamping pressure in real time to ensure that the appropriate clamping force is always maintained throughout the grinding process, so that the gear will not be damaged due to over-tightening, nor will the gear slip due to over-loosening.

[0069] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A positioning and clamping device for gear grinding, comprising a base and a support frame, wherein the support frame is fixedly connected to the base and is located on the top of the support frame, characterized in that: The invention also includes an installation component and a clamping component, wherein the installation component includes a mounting rod, a plurality of sliding blocks, a rotating disk and a driver, wherein the rotating disk is rotatably arranged on one side of the support frame, the driver is used to drive the rotating disk to rotate, and the plurality of sliding blocks are respectively slidably arranged in a plurality of inclined grooves of the mounting rod, the clamping component includes a pusher, a rotating rod, a pushing rod and a pushing head, the pusher is slidably arranged on the base, the rotating rod is arranged on the pusher, the pushing rod is rotatably connected to the rotating rod, the pushing head is fixed on the pushing rod, and is used to push the sliding block to slide along the inclined groove to fix the gear to be polished.

2. A positioning and clamping device for gear grinding as claimed in claim 1, characterized in that: The driver comprises a rotating motor, a first gear and a ring gear, wherein the ring gear is fixed to the outer side of the rotating disk, the first gear is meshed with the ring gear, and the output end of the rotating motor is connected to the first gear.

3. A positioning and clamping device for gear grinding as claimed in claim 2, characterized in that: The sliding block includes a sliding block body, a locking block and a spring piece, wherein the locking block is slidably arranged in the sliding block body, the spring piece is arranged between the sliding block body and the locking block, a rotatable connecting rod is arranged on the pushing head corresponding to the locking block, and a hook head is arranged at the end of the connecting rod.

4. A positioning and clamping device for gear grinding as claimed in claim 3, characterized in that: The pusher comprises a driving screw, a moving block and a driving motor. The moving block is slidably arranged on the base. The driving screw is threadedly connected to the moving block. The output end of the driving motor is fixedly connected to the driving screw.

5. A positioning and clamping device for gear grinding as claimed in claim 4, characterized in that: The clamping assembly also includes a limiter, which is arranged on one side of the mounting rod and is used to limit the clamped gear to be polished.

6. A positioning and clamping device for gear grinding as claimed in claim 5, characterized in that: The limiter includes two supporting plates, two moving rods, a limiting seat and a second screw rod, wherein the limiting seat is fixed on the base, the two moving rods are slidably arranged on both sides of the gear to be polished, the two supporting plates are arranged on the two moving rods, the second screw rod has two opposite threads, and the second screw rod is threadedly connected to the two moving rods.

7. A positioning and clamping device for gear grinding as claimed in claim 6, characterized in that: The limiter also includes two limit rings, and the two limit rings are rotatably arranged on the two support plates.

8. A positioning and clamping device for gear grinding as claimed in claim 7, characterized in that: The positioning and clamping device for gear grinding also includes an impurity collecting component, and the impurity collecting component is arranged on the base.

9. A positioning and clamping method for gear grinding, using a positioning and clamping device for gear grinding as claimed in any one of claims 1 to 8, characterized in that: include: placing the gear to be ground onto the mounting rod; The pusher is started to drive the push head to approach the sliding block, so that the sliding block slides along the inclined groove under the action of the push head to contact and fix with the inner ring of the gear; The driver drives the rotating disk to rotate so as to drive the gear to be polished to rotate so as to enter the polishing state.

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