Rotary positioning mechanism for circular saw blade machining and working method of rotary positioning mechanism

Abstract

The invention relates to the technical field of circular saw blade machining, and discloses a circular saw blade machining rotary positioning mechanism and a working method thereof.The circular saw blade machining rotary positioning mechanism comprises a supporting frame and a rotary column rotationally connected to the front side of the supporting frame, and a clamping assembly is arranged at the front end of the rotary column; the circular saw blade clamping device comprises a supporting frame used for detachably fixing a circular saw blade to be machined, a limiting assembly is fixedly installed on the front side of the supporting frame, the front end of the limiting assembly is fixedly connected with an arc-shaped connecting block, the arc-shaped connecting block can rotate around the axis of the limiting assembly through a rotating assembly, and a clamping air cylinder is installed at the front end of the arc-shaped connecting block through a telescopic assembly. The circular saw blade machining rotating and positioning mechanism and the working method thereof have the advantages that the circular saw blade can be conveniently installed and fixed, the circular saw blade can be rotated, the rotating precision is high, and the grinding precision of the circular saw blade is improved.

Description

Technical Field

[0001] The invention relates to the technical field of circular saw blade processing, in particular to a circular saw blade processing rotation positioning mechanism and a working method thereof. Background Art

[0002] The grinding process of circular saw blades is a delicate operation. Its core purpose is to reshape the sharpness of the saw teeth, improve cutting efficiency, and effectively extend the service life of the saw blade. During the grinding operation, in order to ensure the grinding accuracy and quality, the position of the circular saw blade must be accurately positioned with the help of a professional positioning mechanism, thereby ensuring the stability and reliability of the grinding process.

[0003] In the process of grinding the teeth of the existing circular saw blade, it is necessary to position the circular saw blade to facilitate the subsequent grinding operation of the saw teeth. The existing circular saw blade positioning usually involves the circular saw blade being mounted on a rotating shaft through a nut, and then the output shaft of the motor is connected to the rotating shaft for transmission. The rotating shaft is driven by the motor to rotate, thereby driving the circular saw blade to rotate. However, during long-term use, the motor and the rotating shaft will cause wear and tear during long-term operation, which may lead to unstable rotation speed. In addition, it is difficult for the saw blade to accurately reach the grinding position every time during the rotation process, which affects the grinding accuracy. Therefore, a circular saw blade processing rotation positioning mechanism and a working method thereof are proposed to solve the above problems. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a circular saw blade processing rotation positioning mechanism and a working method thereof, which have the advantages of convenient installation and fixation of the circular saw blade, and can rotate the circular saw blade, with high rotation accuracy, and improved grinding accuracy of the circular saw blade. It solves the problem that the existing circular saw blade needs to position the circular saw blade during the process of grinding its saw teeth, which is convenient for subsequent saw tooth grinding operations. The existing circular saw blade positioning is usually performed by setting the circular saw blade on a rotating shaft through a nut, and then the output shaft of the motor is connected to the rotating shaft for transmission. The rotating shaft is driven by the motor to rotate, thereby driving the circular saw blade to rotate. However, during long-term use, the motor and the rotating shaft will cause wear during long-term operation, which may cause unstable rotation speed, and during the rotation process, it is difficult for the saw blade to accurately reach the grinding station every time, affecting the grinding accuracy.

[0005] (II) Technical solution The technical solution of the present invention to solve the above technical problems is as follows: A rotary positioning mechanism for circular saw blade processing, including a support frame and a rotating column rotatably connected to the front side of the support frame. A clamping assembly is provided at the front end of the rotating column for detachably fixing the circular saw blade to be processed. A limiting assembly is fixedly installed on the front side of the support frame. An arc-shaped connecting block is fixedly connected to the front end of the limiting assembly. The arc-shaped connecting block can rotate around the axis of the limiting assembly through a rotating assembly. A clamping cylinder is installed at the front end of the arc-shaped connecting block through a telescopic assembly. The jaws of the clamping cylinder are configured to contact the outer peripheral edge of the circular saw blade to be processed and apply a radial clamping force in the clamping state; A positioning assembly is also provided at the front end of the support frame for locking the circumferential position by mutual extrusion of the anti-slip pad and the anti-slip pattern of the rotating column in the non-rotating state.

[0006] The beneficial effects of the present invention are: The rotary positioning mechanism for circular saw blade processing and its working method have the following advantages: 1) The coordinated control of the rotating assembly and the limiting assembly: Through the intermittent meshing of the missing-shaped teeth and the connecting gear, and the trajectory constraint of the arc-shaped connecting block by the limiting sleeve, accurate indexing rotation is achieved.

[0007] 2) The radial clamping mechanism of the clamping cylinder: The clamping force is perpendicular to the radial plane of the circular saw blade, avoiding offset caused by tangential force.

[0008] 3) The double-cylinder symmetric locking of the positioning assembly: By the extrusion of the anti-slip pad and the anti-slip pattern of the rotating column, the inertial error during the rotation process is eliminated.

[0009] On the basis of the above technical solution, the present invention can be further improved as follows.

[0010] Further, the clamping assembly includes a clamping bottom plate fixedly connected to the front side of the rotating column, a clamping bolt detachably connected to the inner side of the clamping bottom plate through a connecting bolt, and a clamping nut threadedly connected to the outer side of the clamping bolt. The circular saw blade to be processed is sleeved on the outer side of the clamping bolt, and axial fixation is achieved through the threaded connection between the clamping nut and the clamping bottom plate.

[0011] Further, the limiting assembly includes a limiting shell, a limiting sleeve and a limiting plate. The limiting shell is fixedly installed at the front end of the support frame. The front and rear ends of the limiting plate are respectively fixed to the arc-shaped connecting block and the limiting sleeve. The limiting sleeve is slidably connected to the inner side of the limiting shell to restrict the rotation trajectory of the arc-shaped connecting block.

[0012] Further, the rotating assembly includes a sector gear fixedly connected to the outside of the arc-shaped connecting block, a connecting gear meshing with the sector gear, and a driving motor fixedly installed on the front side of the support frame. The outer side of the output shaft of the driving motor is fixedly connected to the outer side of the connecting gear through a coupling. The connecting gear is driven by the driving motor and meshes with the sector gear to achieve the intermittent rotation of the arc-shaped connecting block.

[0013] Further, the telescopic assembly includes a fixed housing, a telescopic cylinder, and a sliding block. The fixed housing is fixedly connected to the front end of the arc-shaped connecting block. The telescopic cylinder is fixedly installed on the outside of the fixed housing. The clamping cylinder slides along the inside of the fixed housing through the telescopic end of the telescopic cylinder. The sliding block is fixed to the bottom end of the clamping cylinder to enhance the moving stability.

[0014] Further, the positioning assembly includes two positioning cylinders symmetrically arranged and fixedly installed on the front side of the support frame. The output shaft of the positioning cylinder is fixedly connected with a positioning plate. The anti-slip pad is fixed to the outside of the positioning plate and matches the anti-slip pattern of the rotating column.

[0015] Further, the positioning plate and the anti-slip pad are located inside a protective housing at the front end of the support frame. The protective housing is configured as a protective structure covering the positioning cylinder and the anti-slip pad.

[0016] Further, the surface of the jaws of the clamping cylinder is provided with anti-slip textures, and the acting direction of the clamping force is perpendicular to the radial plane of the circular saw blade to be processed.

[0017] Further, it includes the following steps: S1. Install the circular saw blade to be processed: Loosen the clamping nut, sleeved the circular saw blade to be processed on the outside of the clamping bolt and then tighten the clamping nut; S2. Clamp and position: Start the telescopic cylinder to push the clamping cylinder to the outer periphery of the circular saw blade to be processed, and the clamping cylinder applies a radial clamping force to fix the circular saw blade; S3. Release the rotation lock: Start the positioning cylinder to retract the anti-slip pad to release the circumferential lock of the rotating column; S4. Rotate and position: The driving motor drives the connecting gear to rotate, the sector gear meshes to drive the arc-shaped connecting block to rotate, driving the clamping cylinder and the circular saw blade to be processed to rotate to the next grinding station; S5. Relock: The positioning cylinder pushes the anti-slip pad to squeeze against the anti-slip pattern of the rotating column, the clamping cylinder releases and resets, and repeat S2 - S5 until all the saw teeth are ground. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a side view of the structure of the present invention; Figure 3 is a connection diagram of the positioning cylinder and the positioning plate of the structure of the present invention; Figure 4 is a sectional view of the structure of the present invention; Figure 5This is the connection diagram of the missing teeth and the connecting gear of the present invention; Figure 6 This is the connection diagram of the limit shell and the limit sleeve of the present invention; Figure 7 This is the flowchart of the working method of the structure of the present invention.

[0019] In the figure: 1. Support frame; 2. Rotating column; 3. Clamping component; 31. Clamping bottom plate; 32. Clamping bolt; 33. Clamping nut; 4. Circular saw blade to be processed; 5. Positioning component; 51. Positioning cylinder; 52. Positioning plate; 53. Anti-slip pad; 6. Limiting component; 61. Limit shell; 62. Limit sleeve; 63. Limit plate; 7. Arc-shaped connecting block; 8. Rotating component; 81. Missing teeth; 82. Connecting gear; 83. Driving motor; 9. Telescopic component; 91. Fixed shell; 92. Telescopic cylinder; 93. Sliding block; 10. Clamping cylinder; 11. Protective shell. Specific implementation mode

[0020] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1, provided by Figures 1-7 A rotary positioning mechanism for circular saw blade processing is given. The present invention includes a support frame 1 and a rotating column 2 rotatably connected to the front side of the support frame 1. A clamping component 3 is provided at the front end of the rotating column 2 for detachably fixing the circular saw blade 4 to be processed. A limiting component 6 is fixedly installed on the front side of the support frame 1. An arc-shaped connecting block 7 is fixedly connected to the front end of the limiting component 6. The arc-shaped connecting block 7 can rotate around the axis of the limiting component 6 through a rotating component 8. A clamping cylinder 10 is installed at the front end of the arc-shaped connecting block 7 through a telescopic component 9. The jaws of the clamping cylinder 10 are configured to contact the outer peripheral edge of the circular saw blade 4 to be processed and apply a radial clamping force in the clamping state; a positioning component 5 is also provided at the front end of the support frame 1 for locking the circumferential position by mutual extrusion of the anti-slip pad 53 and the anti-slip lines of the rotating column 2 in the non-rotating state.

[0022] Through the collaborative work of the clamping component 3, the limiting component 6, the rotating component 8, the telescopic component 9, the clamping cylinder 10 and the positioning component 5, the detachable fixation, rotational positioning and circumferential locking of the circular saw blade 4 to be processed are realized. The clamping component 3 facilitates the installation and disassembly of the circular saw blade, improving the processing efficiency; the limiting component 6 and the rotating component 8 ensure the stability and accuracy of the rotation of the arc connecting block 7; the telescopic component 9 and the clamping cylinder 10 realize the stable clamping of the circular saw blade; the positioning component 5 locks the rotating column 2 in the non-rotating state, ensuring the stability of the processing process, effectively improving the precision and efficiency of circular saw blade processing, and reducing the processing error caused by inaccurate positioning.

[0023] Among them, the clamping component 3 includes a clamping bottom plate 31 fixedly connected to the front side of the rotating column 2, a clamping bolt 32 detachably connected to the inner side of the clamping bottom plate 31 through a connecting bolt, and a clamping nut 33 threadedly connected to the outside of the clamping bolt 32. The circular saw blade 4 to be processed is sleeved on the outside of the clamping bolt 32, and axial fixation is achieved through the threaded connection between the clamping nut 33 and the clamping bottom plate 31.

[0024] Through the clamping component 3, the quick disassembly and assembly operation of the circular saw blade 4 to be processed can be realized. The modular clamping design facilitates the replacement of circular saw blades 4 of different specifications. The threaded locking method provides reliable axial fixation, avoiding displacement during the processing, and improving the stability during the processing of the circular saw blade 4 to be processed.

[0025] Among them, the limiting housing 61 is fixed to the front end of the support frame 1 by bolts. The limiting sleeve 62 is installed inside the limiting housing 61, and the two are in sliding fit. The limiting sleeve 62 can slide along a set track inside the limiting housing 61. One end of the limiting plate 63 is fixedly connected to the arc connecting block 7, and the other end is fixedly connected to the limiting sleeve 62. When the rotating component 8 drives the arc connecting block 7 to rotate, the arc connecting block 7 drives the limiting sleeve 62 to slide inside the limiting housing 61 through the limiting plate 63, thereby restricting the rotation track of the arc connecting block 7 and ensuring the stability and accuracy of its rotation.

[0026] The limiting housing 61, the limiting sleeve 62 and the limiting plate 63 of the limiting component 6 cooperate with each other to provide a stable restraint for the rotation of the arc connecting block 7. The sliding of the limiting sleeve 62 inside the limiting housing 61 can effectively prevent the arc connecting block 7 from shifting or shaking during rotation, ensuring the rotational positioning accuracy of the clamping cylinder 10 and the circular saw blade 4 to be processed, and further improving the quality and stability of circular saw blade processing.

[0027] Among them, the rotating assembly 8 includes a defective tooth 81 welded to the outside of the arc-shaped connecting block 7, a connecting gear 82 meshing with the defective tooth 81, and a driving motor 83 fixedly installed on the front side of the support frame 1. The outer side of the output shaft of the driving motor 83 is fixedly connected to the outer side of the connecting gear 82 through a coupling. The connecting gear 82 is driven by the driving motor 83 and meshes with the defective tooth 81 to achieve the intermittent rotation of the arc-shaped connecting block 7.

[0028] The rotating assembly 8 utilizes the cooperation of the driving motor 83, the connecting gear 82, and the defective tooth 81 to achieve the intermittent rotation of the arc-shaped connecting block 7. This intermittent rotation method can enable the to-be-processed circular saw blade 4 to accurately stay at each processing station, facilitating the processing of the saw teeth of the circular saw blade one by one, improving the automation degree and processing accuracy of the processing, and at the same time reducing the energy consumption during the operation of the equipment.

[0029] Among them, the telescopic assembly 9 includes a fixed shell 91, a telescopic cylinder 92, and a sliding block 93. The fixed shell 91 is fixedly connected to the front end of the arc-shaped connecting block 7. The telescopic cylinder 92 is fixedly installed on the outside of the fixed shell 91. The clamping cylinder 10 slides along the inside of the fixed shell 91 through the telescopic end of the telescopic cylinder 92. The sliding block 93 is fixed to the bottom end of the clamping cylinder 10 to enhance the movement stability.

[0030] The fixed shell 91, the telescopic cylinder 92, and the sliding block 93 of the telescopic assembly 9 cooperate with each other to achieve the telescopic movement of the clamping cylinder 10. The telescopic cylinder 92 provides power, and the fixed shell 91 and the sliding block 93 ensure the stability and accuracy of the movement of the clamping cylinder 10, enabling the clamping cylinder 10 to quickly and accurately clamp and release the to-be-processed circular saw blade 4, improving the efficiency and stability of the circular saw blade processing.

[0031] Among them, the positioning assembly 5 includes two symmetrically arranged positioning cylinders 51 fixedly installed on the front side of the support frame 1. The output shaft of the positioning cylinder 51 is fixedly connected to a positioning plate 52. An anti-slip pad 53 is fixed to the outside of the positioning plate 52 and matches the anti-slip pattern of the rotating column 2.

[0032] The positioning assembly 5 realizes the precise locking and unlocking of the circumferential position of the rotating column 2. During the circular saw blade processing, the positioning assembly 5 can effectively prevent the rotating column 2 from rotating in the non-rotating state, ensuring the accuracy of the processing; when rotational positioning is required, the locking can be quickly released without affecting the normal rotation of the rotating column 2, improving the working efficiency and stability of the entire mechanism.

[0033] Among them, the positioning plate 52 and the anti-slip pad 53 are located inside the protective shell 11 at the front end of the support frame 1. The protective shell 11 is constructed as a protective structure covering the positioning cylinder 51 and the anti-slip pad 53.

[0034] The setting of the protective housing 11 provides effective protection for the positioning component 5, extends the service life of the positioning plate 52, the anti-slip pad 53 and the positioning cylinder 51, and reduces the maintenance cost of the equipment. At the same time, the protective housing 11 can prevent debris generated during the processing from affecting the normal operation of the positioning component 5, ensuring the accuracy and stability of the circumferential positioning of the rotating column 2, thereby improving the quality and efficiency of circular saw blade processing.

[0035] Among them, the surface of the clamping jaw of the clamping cylinder 10 is provided with anti-slip textures, and the acting direction of the clamping force is perpendicular to the radial plane of the circular saw blade 4 to be processed.

[0036] The anti-slip textures on the surface of the clamping jaw of the clamping cylinder 10 are formed by machining or surface treatment processes, such as knurling, etching, etc.

[0037] The design of the anti-slip textures on the surface of the clamping jaw of the clamping cylinder 10 and the clamping force perpendicular to the radial plane of the circular saw blade can effectively improve the clamping stability of the circular saw blade. The anti-slip textures increase the friction between the clamping jaw and the circular saw blade, prevent the circular saw blade from shifting or rotating during the processing, ensure the accuracy and quality of the processing, and at the same time reduce the risk of equipment damage caused by the sliding of the circular saw blade.

[0038] Among them, it includes the following steps: S1. Install the circular saw blade 4 to be processed: Loosen the clamping nut 33, sleeved the circular saw blade 4 to be processed outside the clamping bolt 32 and then lock the clamping nut 33; S2. Clamping and positioning: Start the telescopic cylinder 92 to push the clamping cylinder 10 to the outer periphery of the circular saw blade 4 to be processed, and the clamping cylinder 10 applies a radial clamping force to fix the circular saw blade 4 to be processed; S3. Release the rotation lock: Start the positioning cylinder 51 to retract the anti-slip pad 53 to release the circumferential lock of the rotating column 2; S4. Rotating and positioning: The driving motor 83 drives the connecting gear 82 to rotate, the missing tooth 81 meshes with the driving arc-shaped connecting block 7 to rotate, driving the clamping cylinder 10 and the circular saw blade 4 to be processed to rotate to the next grinding station; S5. Re-lock: The positioning cylinder 51 pushes the anti-slip pad 53 to squeeze with the anti-slip lines of the rotating column 2, the clamping cylinder 10 releases and resets, and repeat S2 - S5 until all the saw teeth are ground.

[0039] Working principle: When it is necessary to grind the circular saw blade 4 to be processed, first rotate the clamping nut 33 to remove it, then place the circular saw blade 4 to be processed outside the clamping bolt 32, and finally reinstall the clamping nut 33.

[0040] Next, start grinding the tooth blocks on the outer side of the circular saw blade 4 to be processed. After grinding one tooth block, start the telescopic cylinder 92, move the clamping jaw of the clamping cylinder 10 to the outer side of the circular saw blade 4 to be processed, and then start the clamping cylinder 10 to fix the circular saw blade 4 to be processed through the clamping jaw.

[0041] Then, the positioning cylinder 51 is started to release the restriction between the anti-skid pad 53 and the rotating column 2. Then, the driving motor 83 is started to drive the connecting gear 82 to rotate, and the missing tooth 81 drives the clamping cylinder 10 on the outer side of the arc-shaped connecting block 7 to rotate, thereby driving the circular saw blade 4 to be processed to rotate until the second unpolished tooth block rotates to the grinding position, and the circular saw blade 4 to be processed stops rotating.

[0042] At this time, the positioning cylinder 51 is restarted to make the anti-skid pad 53 and the rotating column 2 squeeze each other to play a positioning role. The clamping cylinder 10 is released, and the telescopic cylinder 92 drives the clamping cylinder 10 to retract. At the same time, the driving motor 83 is started to move the clamping cylinder 10 to the initial position, and the grinding of the second tooth of the circular saw blade 4 to be processed can begin.

[0043] Repeat the above operation to grind each tooth block on the outer side of the circular saw blade 4 to be processed in turn until all the tooth blocks are completely ground.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A rotary positioning mechanism for circular saw blade processing, comprising a support frame (1) and a rotary column (2) rotatably connected to the front side of the support frame (1), characterized in that: A clamping component (3) is provided at the front end of the rotating column (2) for detachably fixing the circular saw blade (4) to be processed. A limiting component (6) is fixedly installed on the front side of the support frame (1). An arc-shaped connecting block (7) is fixedly connected to the front end of the limiting component (6). The arc-shaped connecting block (7) can rotate around the axis of the limiting component (6) through a rotating component (8). A clamping cylinder (10) is installed at the front end of the arc-shaped connecting block (7) through a telescopic component (9). The clamping jaws of the clamping cylinder (10) are configured to contact the outer peripheral edge of the circular saw blade (4) to be processed and apply a radial clamping force in the clamping state; a positioning component (5) is further provided at the front end of the support frame (1) for locking the circumferential position by mutual extrusion of the anti-slip pad (53) and the anti-slip pattern of the rotating column (2) in the non-rotating state.

2. The rotary positioning mechanism for circular saw blade processing according to claim 1, characterized in that: The clamping component (3) includes a clamping bottom plate (31) fixedly connected to the front side of the rotating column (2), a clamping bolt (32) detachably connected to the inner side of the clamping bottom plate (31) through a connecting bolt, and a clamping nut sleeve (33) threadedly connected to the outer side of the clamping bolt (32). The circular saw blade (4) to be processed is sleeved on the outer side of the clamping bolt (32), and axial fixation is achieved through the threaded connection between the clamping nut sleeve (33) and the clamping bottom plate (31).

3. A rotary positioning mechanism for circular saw blade processing according to claim 1, characterized in that: The limiting component (6) includes a limiting shell (61), a limiting sleeve (62), and a limiting plate (63). The limiting shell (61) is fixedly installed at the front end of the support frame (1). The front and rear ends of the limiting plate (63) are respectively fixed to the arc-shaped connecting block (7) and the limiting sleeve (62). The limiting sleeve (62) is slidably connected to the inner side of the limiting shell (61) to restrict the rotation trajectory of the arc-shaped connecting block (7).

4. A rotary positioning mechanism for circular saw blade processing according to claim 1, characterized in that: The rotating component (8) includes a missing-shaped tooth (81) fixedly connected to the outer side of the arc-shaped connecting block (7), a connecting gear (82) meshing with the missing-shaped tooth (81), and a driving motor (83) fixedly installed on the front side of the support frame (1). The outer side of the output shaft of the driving motor (83) is fixedly connected to the outer side of the connecting gear (82) through a coupling. The connecting gear (82) is driven by the driving motor (83) and meshes with the missing-shaped tooth (81) to achieve intermittent rotation of the arc-shaped connecting block (7).

5. A rotary positioning mechanism for circular saw blade processing according to claim 1, characterized in that: The telescopic component (9) includes a fixed shell (91), a telescopic cylinder (92), and a sliding block (93). The fixed shell (91) is fixedly connected to the front end of the arc-shaped connecting block (7). The telescopic cylinder (92) is fixedly installed on the outer side of the fixed shell (91). The clamping cylinder (10) slides along the inner side of the fixed shell (91) through the telescopic end of the telescopic cylinder (92). The sliding block (93) is fixed to the bottom end of the clamping cylinder (10) to enhance the movement stability.

6. A rotary positioning mechanism for circular saw blade processing according to claim 1, characterized in that: The positioning component (5) includes two symmetrically arranged positioning cylinders (51) fixedly installed on the front side of the support frame (1). The output shaft of the positioning cylinder (51) is fixedly connected to a positioning plate (52). The anti-slip pad (53) is fixed to the outer side of the positioning plate (52) and matches the anti-slip pattern of the rotating column (2).

7. A rotary positioning mechanism for circular saw blade processing according to claim 6, characterized in that: The positioning plate (52) and the anti-slip pad (53) are located inside the protective shell (11) at the front end of the support frame (1), and the protective shell (11) is configured as a protective structure covering the positioning cylinder (51) and the anti-slip pad (53).

8. The rotary positioning mechanism for circular saw blade processing according to claim 1, characterized in that: The surface of the jaws of the clamping cylinder (10) is provided with anti-slip textures, and the acting direction of the clamping force is perpendicular to the radial plane of the circular saw blade (4) to be processed.

9. The working method of a circular saw blade processing rotation positioning mechanism according to any one of claims 1-8, characterized in that: It includes the following steps: S1. Install the circular saw blade (4) to be processed: Loosen the clamping sleeve (33), sleeved the circular saw blade (4) to be processed on the outside of the clamping bolt (32) through the central hole, so that the central axis of the circular saw blade (4) coincides with the axis of the rotating column (2), and axially fix the circular saw blade (4) at the front end of the rotating column (2) by the threaded connection between the clamping sleeve (33) and the clamping bottom plate (31). S2. Clamping and positioning: Start the telescopic cylinder (92), drive the fixed shell (91) and the clamping cylinder (10) inside it to move towards the outer periphery of the circular saw blade (4) to be processed. The sliding block (93) is guided in the chute of the fixed shell (91). When the clamping cylinder (10) is in place, its jaws with anti-slip textures apply a clamping force along the direction perpendicular to the radial plane of the circular saw blade (4) to fix the circular saw blade (4). S3. Release the rotation lock: Start the positioning cylinder (51), drive the positioning plate (52) and the anti-slip pad (53) to retract, so that the anti-slip pad (53) is separated from the anti-slip texture of the rotating column (2), and release the circumferential lock of the rotating column (2). S4. Rotation positioning: The drive motor (83) drives the connecting gear (82) to rotate. The connecting gear (82) meshes with the missing teeth (81) on the outside of the arc connecting block (7), driving the arc connecting block (7) to intermittently rotate around the axis of the limiting component (6). The arc connecting block (7) drives the limiting sleeve (62) to slide in the limiting shell (61) through the limiting plate (63), and then drives the clamping cylinder (10) and the circular saw blade (4) to rotate to the next grinding station. S5. Re-lock: The positioning cylinder (51) pushes the positioning plate (52) and the anti-slip pad (53) to squeeze with the anti-slip texture of the rotating column (2) to lock the circumferential position of the rotating column (2). At the same time, the clamping cylinder (10) releases the clamping force and resets. Repeat S2 - S5 until all the saw teeth of the circular saw blade (4) are ground.

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