Crankshaft grinding machining mechanism and machining equipment

Abstract

The invention discloses a crankshaft grinding machining mechanism and machining equipment, and particularly relates to the technical field of crankshaft machining, the crankshaft grinding machining mechanism comprises a base and a machining machine body at the top of the base, and a linkage assembly is arranged on the base and comprises a first electric sliding rail arranged on the machining machine body; a first electric telescopic rod with the position adjustable is arranged at the bottom of the first electric sliding rail. According to the crankshaft grinding tool, the grinding tool can penetrate into the crankshaft conveniently, the requirements for follow-up lubrication, weight reduction, heat dissipation and dynamic balance of the crankshaft are met through grinding of the grinding tool, and inaccurate machining caused by bending of the grinding tool penetrating into the crankshaft due to stress is avoided; the phenomenon that the grinding cutter shifts due to the fact that the grinding cutter moves downwards to make direct contact with the crankshaft, and the machining effect is affected is avoided, the two brackets are driven by rotating the two-way lead screw to conduct position adjustment, the included angle is adjusted, the polishing and grinding belt can be attached to the crankshaft more tightly, meanwhile, the polishing and grinding belt can adapt to crankshafts with different diameters, and the machining efficiency is improved. And the adaptability of the device in use is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of crankshaft processing, and more specifically, the present invention relates to a crankshaft grinding processing mechanism and processing equipment. Background Art

[0002] The crankshaft is the most important component in an engine. It bears the force transmitted by the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine to work. The crankshaft is jointly affected by the centrifugal force of the rotating mass, the periodically changing gas inertia force, and the reciprocating inertia force, causing the crankshaft to bear the action of bending and torsional loads. Since it is inevitable to generate burrs that are difficult to remove, such as cross holes, internal and external irregular grooves, etc. during the production and processing of the crankshaft, the inner surface accuracy of the crankshaft is reduced. In addition, the presence or shedding of burrs will cause vehicle transmission wear and failures. Therefore, the crankshaft needs to be processed.

[0003] Among them, the patent with the publication number CN110900434A discloses a rheological processing equipment for vehicle crankshafts, which solves the problem of vehicle transmission wear and failures caused by internal burrs of the current crankshaft. It includes a base assembly, and an electric control cabinet is connected to the upper end of the base assembly; When this structure is in use, the workpiece is fixed within the first fixture mechanism and the second fixture mechanism. The first plunger pump assembly and the second plunger pump assembly respectively pass high-pressure abrasive solution at high speed through the burr part for effective grinding processing, and then are filtered by the first filter water tank mechanism and the second filter water tank mechanism, so that the abrasive liquid is recycled for processing. However, when this structure performs polishing and grinding processing, it is not easy to continuously pressurize the crankshaft, and the rotation of the crankshaft cannot comprehensively process the crankshaft, resulting in poor polishing and grinding effects and low efficiency. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a crankshaft grinding processing mechanism and processing equipment, aiming to solve the problems proposed in the above background art.

[0005] The present invention provides the following technical solutions: A crankshaft grinding processing mechanism includes a base and a processing machine main body on the top of the base, and a linkage assembly is arranged on the base; The linkage assembly includes a first electric slide rail arranged on the processing machine main body. A first electric telescopic rod with adjustable position is arranged at the bottom of the first electric slide rail. A pressing frame is arranged at the bottom of the first electric telescopic rod. A central cylinder is slidably connected within the pressing frame through a chute and a slider. A grinding tool for processing is rotatably connected to the middle of the central cylinder. A conical spring is sleeved outside the central cylinder; A connecting frame is provided on the main body of the processing machine. A connecting seat is installed on the connecting frame through bolts. A side connecting frame is slidably connected to the connecting seat. Position-adjustable brackets are provided at the top and bottom of the side connecting frame. A first supporting wheel is rotatably connected to each bracket. An included angle is formed between the two brackets. A polishing belt is drivingly connected to the outside of each first supporting wheel. A baffle is provided on the outside of the first supporting wheel. The baffle is located outside the polishing belt. The baffle is installed on the bracket through bolts. A belt drive machine for rotating the polishing belt is provided on the connecting frame. A second electric telescopic rod for driving the side connecting frame to displace is installed on the connecting seat through bolts. A bidirectional lead screw is threadedly connected between the two brackets. Guide rods are provided on both sides of the bidirectional lead screw. The guide rods are slidably connected to the brackets. The guide rods are fixed to the side connecting frame. Position-adjustable second supporting wheels are provided at the top and bottom of the connecting frame. Each second supporting wheel is drivingly connected to the polishing belt; It can be seen that in the above technical solution, the bottom of the abutting frame and the end of the grinding tool can both abut against the crankshaft. The grinding tool is driven by the second driving motor to rotate to drill the crankshaft. At the same time, the output end of the first electric telescopic rod continuously presses the grinding tool, the central cylinder and the abutting frame to compress the conical spring, so that the grinding tool can penetrate into the crankshaft. The subsequent lubrication, weight reduction, heat dissipation and dynamic balance requirements of the crankshaft are realized by grinding with the grinding tool. And by the way that the conical spring continuously pushes the abutting frame and the central cylinder to abut against the outside of the crankshaft by its own elasticity, the function of positioning during the grinding process of the grinding tool is realized, and it also avoids the phenomenon that the grinding tool moves down and directly contacts the crankshaft, resulting in the deviation of the grinding tool and affecting the processing effect. The second electric telescopic rod drives the side connecting frame to drive the bracket to displace, and then the first supporting wheel and the polishing belt wrap around the outside of the crankshaft through the included angle between the two brackets. The side connecting frame continuously displaces and makes the polishing belt closely fit the crankshaft. Through the rotation of the crankshaft and the belt drive machine winding the polishing belt, the function of polishing after the second electric telescopic rod grinds is realized, and the diversity during the crankshaft processing is realized; Optionally, in a possible implementation manner, a protective cover is hinged on the connecting frame. The protective cover covers the outside of the side connecting frame. A third electric slide rail for driving the belt drive machine to displace is provided on the base. A second electric slide rail is provided on the third electric slide rail. A position-adjustable reinforcing block is provided on the second electric slide rail. A first driving motor is provided on the reinforcing block. A top shaft rod is provided at the output end of the first driving motor. A tooth groove is provided on the outside of the central cylinder. A second driving motor for driving the grinding tool to rotate is installed at the top of the central cylinder through bolts. The second driving motor is installed at the output end of the first electric telescopic rod through bolts. A micro motor is installed on the abutting frame through bolts. A worm is provided at the output end of the micro motor. A worm gear is provided at the bottom of the worm. The worm gear is rotatably connected to the abutting frame. The worm gear extends to the central cylinder and meshes with the tooth groove; It can be seen that in the above technical solution, the second electric slide rail drives the reinforcing block, the first driving motor and the top shaft rod to displace, so that the top shaft rod abuts against the end of the crankshaft, facilitating the first driving motor to drive the top shaft rod to rotate and then the main body of the processing machine drives the crankshaft to rotate. It can also drive the worm to drive the worm wheel to rotate through the micro motor. The worm wheel drives the central cylinder to displace in the abutting frame through the tooth groove, and then adjusts the stroke that the grinding tool can penetrate into the crankshaft to ensure the grinding accuracy; Optionally, the present application also provides a processing device, which includes the crankshaft grinding processing mechanism of the above solution.

[0006] Technical effects and advantages of the present invention: 1. Both the bottom of the abutting frame and the end of the grinding tool of the present invention can abut against the crankshaft. The grinding tool is driven to rotate by the second driving motor to drill the crankshaft. At the same time, the output end of the first electric telescopic rod continuously presses the grinding tool, the central cylinder and the abutting frame to compress the conical spring, so as to facilitate the grinding tool to penetrate into the crankshaft, and the subsequent lubrication, weight reduction, heat dissipation and dynamic balance requirements of the crankshaft are realized through the grinding of the grinding tool; 2. The present invention realizes the positioning function during the grinding process of the grinding tool by continuously pushing the abutting frame and the central cylinder to abut against the outside of the crankshaft through the elasticity of the conical spring itself, avoiding the bending of the grinding tool due to stress when the grinding tool penetrates into the crankshaft and causing inaccurate processing, and also avoiding the phenomenon that the grinding tool moves down and directly contacts the crankshaft and causes the grinding tool to shift and affect the processing effect; 3. The present invention drives the worm to drive the worm wheel to rotate through the micro motor. The worm wheel drives the central cylinder to displace in the abutting frame through the tooth groove, and then adjusts the stroke that the grinding tool can penetrate into the crankshaft to ensure the grinding accuracy; 4. The first supporting wheel and the polishing belt of the present invention can wrap around the outside of the crankshaft through the included angle between the two brackets. The side connecting frame continuously displaces to make the polishing belt closely fit the crankshaft. Through the rotation of the crankshaft and the winding of the polishing belt by the belt transmission machine, the function of polishing after the grinding by the second electric telescopic rod is realized, realizing the diversity during the crankshaft processing. And the position of the two brackets is adjusted by rotating the bidirectional lead screw to adjust the size of the included angle, making the polishing belt fit more closely on the crankshaft and also adapting to crankshafts with different diameters, improving the adaptability of the device during use; In summary, through the corresponding cooperation of each structure, the output end of the electric telescopic rod continuously presses the grinding tool, the central cylinder and the abutting frame, compressing the conical spring, so that the grinding tool can penetrate deep into the crankshaft. Through the grinding of the grinding tool, the subsequent lubrication, weight reduction, heat dissipation and dynamic balance requirements of the crankshaft are realized. By means of the elastic force of the conical spring itself continuously pushing the abutting frame and the central cylinder to abut against the outside of the crankshaft, the function of positioning during the grinding process of the grinding tool is realized, avoiding the bending of the grinding tool due to stress when it penetrates deep into the crankshaft, resulting in inaccurate processing, and also avoiding the phenomenon that the grinding tool moves down and directly contacts the crankshaft, causing the grinding tool to deviate and affecting the processing effect. The rotation of the crankshaft and the belt drive wind up the polishing belt, realizing the function of polishing after the second electric telescopic rod finishes grinding, realizing the diversity during the processing of the crankshaft, and driving two brackets to adjust their positions by rotating the bidirectional lead screw, adjusting the size of the included angle, making the polishing belt fit more closely on the crankshaft and at the same time being able to adapt to crankshafts with different diameters, improving the adaptability of the device during use. Description of the Drawings

[0007] To more clearly illustrate the technical solutions in the present disclosure, the following will briefly introduce the drawings required for use in some embodiments. Obviously, the drawings in the following description are only the drawings of some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams, and are not limitations on the actual sizes of the products, the actual processes of the methods, the actual timings of the signals, etc. involved in the embodiments of the present disclosure.

[0008] Figure 1 It is the front view of the overall structure of the present invention.

[0009] Figure 2 It is the three-dimensional view of the linkage assembly of the present invention.

[0010] Figure 3 It is the schematic diagram of the polishing belt located on the bracket of the present invention.

[0011] Figure 4 It is the three-dimensional view of the side connecting frame, bracket, first supporting wheel and second electric telescopic rod of the present invention.

[0012] Figure 5 It is the three-dimensional view of the second electric slide rail, strengthening block, first driving motor and top shaft rod of the present invention.

[0013] Figure 6 It is the three-dimensional view of the abutting frame, micro motor, conical spring and central cylinder of the present invention.

[0014] Figure 7 It is the three-dimensional view of the second driving motor, abutting frame, worm gear, worm and central cylinder of the present invention.

[0015] The reference numerals are: 1, base; 2, main body of the processing machine; 3, first electric slide rail; 4, first electric telescopic rod; 5, abutting frame; 6, central cylinder; 7, grinding tool; 8, conical spring; 9, connecting frame; 10, connecting seat; 11, side connecting frame; 12, bracket; 13, first supporting wheel; 14, baffle; 15, belt drive; 16, polishing belt; 17, second electric telescopic rod; 18, bidirectional lead screw; 19, guide rod; 20, second supporting wheel; 21, protective cover; 22, second electric slide rail; 23, strengthening block; 24, first driving motor; 25, top shaft rod; 26, third electric slide rail; 27, tooth groove; 28, second driving motor; 29, micro motor; 30, worm; 31, worm gear. Detailed implementation manners

[0016] 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.

[0017] As shown in the attached Figure 1 - Figure 7 shown, a crankshaft grinding processing mechanism and processing equipment, through the linkage assembly arranged on the base 1, the output end of the first electric telescopic rod 4 continuously presses the grinding tool 7, the central cylinder 6 and the abutting frame 5 to compress the conical spring 8, so as to facilitate the grinding tool 7 to penetrate into the crankshaft. Through the grinding of the grinding tool 7, the subsequent lubrication, weight reduction, heat dissipation and dynamic balance requirements of the crankshaft are realized. By the way that the conical spring 8 continuously pushes the abutting frame 5 and the central cylinder 6 to abut against the outside of the crankshaft by its own elasticity, the function of positioning during the grinding of the grinding tool 7 is realized, avoiding the bending of the grinding tool 7 due to stress when it penetrates into the crankshaft and causing inaccurate processing, and also avoiding the phenomenon that the grinding tool 7 moves down and directly contacts the crankshaft, resulting in the deviation of the grinding tool 7 and affecting the processing effect. The rotation of the crankshaft and the belt drive 15 winding the polishing belt 16 realize the function of polishing after the second electric telescopic rod 17 grinds, realizing the diversity during the crankshaft processing. And by rotating the bidirectional lead screw 18 to drive the two brackets 12 to adjust their positions and the size of the included angle, making the polishing belt 16 stick closer to the crankshaft and at the same time being able to adapt to crankshafts with different diameters, improving the adaptability of the device during use. And the specific structure of the assembly is as follows; The linkage assembly includes a first electric slide rail 3 arranged on the main body 2 of the processing machine. The bottom of the first electric slide rail 3 is provided with a first electric telescopic rod 4 with adjustable position. The bottom of the first electric telescopic rod 4 is provided with an abutting frame 5. The central cylinder 6 is slidably connected to the inside of the abutting frame 5 through a chute and a slider. The middle part of the central cylinder 6 is rotatably connected with a grinding tool 7 for processing. A conical spring 8 is sleeved outside the central cylinder 6; A connecting frame 9 is provided on the main body 2 of the processing machine. A connecting seat 10 is installed on the connecting frame 9 through bolts. A side connecting frame 11 is slidably connected to the connecting seat 10. Position-adjustable brackets 12 are provided at the top and bottom of the side connecting frame 11. A first supporting wheel 13 is rotatably connected to each bracket 12. An included angle is formed between the two brackets 12. A polishing belt 16 is drivingly connected to the outside of each first supporting wheel 13. A baffle 14 is provided on the outside of the first supporting wheel 13. The baffle 14 is located outside the polishing belt 16. The baffle 14 is installed on the bracket 12 through bolts. A belt drive 15 for rotating the polishing belt 16 is provided on the connecting frame 9. A second electric telescopic rod 17 for driving the displacement of the side connecting frame 11 is installed on the connecting seat 10 through bolts. A bidirectional lead screw 18 is threadedly connected between the two brackets 12. Guide rods 19 are provided on both sides of the bidirectional lead screw 18. The guide rods 19 are slidably connected to the brackets 12. The guide rods 19 are fixed to the side connecting frame 11. Position-adjustable second supporting wheels 20 are provided at the top and bottom of the connecting frame 9. Each second supporting wheel 20 is drivingly connected to the polishing belt 16; A protective cover 21 is hinged on the connecting frame 9. The protective cover 21 covers the outside of the side connecting frame 11. A third electric slide rail 26 for driving the displacement of the belt drive 15 is provided on the base 1. A second electric slide rail 22 is provided on the third electric slide rail 26. A position-adjustable strengthening block 23 is provided on the second electric slide rail 22. A first driving motor 24 is provided on the strengthening block 23. A top shaft rod 25 is provided at the output end of the first driving motor 24. A tooth groove 27 is formed on the outside of the central cylinder 6. A second driving motor 28 for driving the rotation of the grinding tool 7 is installed at the top end of the central cylinder 6 through bolts. The second driving motor 28 is installed at the output end of the first electric telescopic rod 4 through bolts. A micro motor 29 is installed on the abutting frame 5 through bolts. A worm 30 is provided at the output end of the micro motor 29. A worm gear 31 is provided at the bottom of the worm 30. The worm gear 31 is rotatably connected to the abutting frame 5. The worm gear 31 extends to the central cylinder 6 and meshes with the tooth groove 27; The present application also provides a processing device, which includes the crankshaft grinding processing mechanism of the above solution.

[0018] When in use according to the above structure, when processing the crankshaft, the crankshaft is preferably installed on the main body 2 of the processing machine first. The second electric slide rail 22 drives the strengthening block 23, the first driving motor 24 and the top shaft rod 25 to displace, so that the top shaft rod 25 abuts against the end of the crankshaft, facilitating the first driving motor 24 to drive the top shaft rod 25 to rotate and then jointly driving the crankshaft to rotate by the main body 2 of the processing machine; Adjust the positions of various structures on the first electric telescopic rod 4, the abutting frame 5 and the central cylinder 6 through the first electric slide rail 3. Drive the displacement of the central cylinder 6, the abutting frame 5 and the grinding tool 7 through the first electric telescopic rod 4, and make the bottom of the abutting frame 5 and the end of the grinding tool 7 both be able to abut on the crankshaft. Drive the grinding tool 7 to rotate through the second drive motor 28 to drill the crankshaft. At the same time, the output end of the first electric telescopic rod 4 continuously presses the grinding tool 7, the central cylinder 6 and the abutting frame 5 to compress the conical spring 8, so as to facilitate the grinding tool 7 to penetrate into the crankshaft. Through the grinding of the grinding tool 7, the subsequent lubrication, weight reduction, heat dissipation and dynamic balance requirements of the crankshaft are realized; And by the way that the conical spring 8 continuously pushes the abutting frame 5 and the central cylinder 6 to abut on the outside of the crankshaft by its own elasticity, the function of positioning during the grinding of the grinding tool 7 is realized, and it also avoids the phenomenon that the grinding tool 7 moves down and directly contacts the crankshaft, resulting in the deviation of the grinding tool 7 and affecting the processing effect; At the same time, the micro motor 29 can also be driven to drive the worm 30 to drive the worm gear 31 to rotate. The worm gear 31 drives the central cylinder 6 to displace in the abutting frame 5 through the tooth groove 27, and then adjusts the stroke that the grinding tool 7 can penetrate into the crankshaft to ensure the grinding accuracy; And drive the side connecting frame 11 to drive the bracket 12 to displace through the second electric telescopic rod 17. Then, the first supporting wheel 13 and the polishing belt 16 are wrapped on the outside of the crankshaft through the included angle between the two brackets 12. The side connecting frame 11 continuously displaces and makes the polishing belt 16 closely fit the crankshaft. Through the rotation of the crankshaft and the winding of the polishing belt 16 by the belt drive 15, the function of polishing after the grinding of the second electric telescopic rod 17 is realized, and the diversity during the processing of the crankshaft is realized; Drive the two brackets 12 to adjust their positions by rotating the bidirectional lead screw 18, and adjust the size of the included angle, so that the polishing belt 16 fits more closely on the crankshaft and can also adapt to crankshafts with different diameters, improving the adaptability of the device during use.

[0019] Different from the prior art, the present application discloses a crankshaft grinding mechanism and processing equipment. The output end of the first electric telescopic rod 4 continuously pressurizes the grinding tool 7, the central cylinder 6 and the abutting frame 5 to compress the conical spring 8, so that the grinding tool 7 can penetrate into the crankshaft. The requirements of subsequent lubrication, weight reduction, heat dissipation and dynamic balance of the crankshaft are realized through the grinding of the grinding tool 7. By means of the elastic force of the conical spring 8 itself continuously pushing the abutting frame 5 and the central cylinder 6 to abut against the outer side of the crankshaft, the function of positioning during the grinding process of the grinding tool 7 is realized, avoiding the bending of the grinding tool 7 due to stress when it penetrates into the crankshaft, resulting in inaccurate processing, and also avoiding the phenomenon that the grinding tool 7 moves down and directly contacts the crankshaft, causing the grinding tool 7 to shift and affecting the processing effect. The crankshaft rotates and the belt drive 15 winds up the polishing belt 16, realizing the function of polishing after the second electric telescopic rod 17 grinds, realizing the diversity during the crankshaft processing, and driving the two brackets 12 to adjust the position by rotating the bidirectional screw rod 18, adjusting the size of the included angle, so that the polishing belt 16 is closer to the crankshaft and can also adapt to crankshafts with different diameters, improving the adaptability of the device during use.

[0020] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crankshaft grinding mechanism, comprising a base (1) and a processing machine body (2) on top of the base (1), characterized in that: The base (1) is provided with a linkage component; The linkage assembly comprises a first electric slide rail (3) arranged on a processing machine body (2); a first electric telescopic rod (4) with adjustable position is arranged at the bottom of the first electric slide rail (3); a support frame (5) is arranged at the bottom of the first electric telescopic rod (4); a central cylinder (6) is slidably connected to the support frame (5) via a slide groove and a slider; a grinding knife (7) for processing is rotatably connected to the middle of the central cylinder (6); and a conical spring (8) is sleeved on the outer side of the central cylinder (6); The processing machine body (2) is provided with a connecting frame (9), a connecting seat (10) is installed on the connecting frame (9) by bolts, a side connecting frame (11) is slidably connected to the connecting seat (10), the top and bottom of the side connecting frame (11) are provided with a bracket (12) with adjustable position, and each of the brackets (12) is rotatably connected to a first supporting wheel (13), an angle is formed between the two brackets (12), and the outer side of each of the first supporting wheels (13) is drivingly connected to a polishing belt (16).

2. A crankshaft grinding mechanism according to claim 1, characterized in that: A baffle plate (14) is provided on the outer side of the first supporting wheel (13); the baffle plate (14) is located on the outer side of the polishing belt (16); and the baffle plate (14) is mounted on the bracket (12) by means of bolts.

3. A crankshaft grinding mechanism according to claim 1, characterized in that: The connecting frame (9) is provided with a belt transmission machine (15) for rotating the polishing belt (16), and the connecting seat (10) is provided with a second electric telescopic rod (17) for driving the displacement of the side connecting frame (11) via bolts.

4. A crankshaft grinding mechanism according to claim 1, characterized in that: A bidirectional screw rod (18) is threadedly connected between the two brackets (12), and guide rods (19) are provided on both sides of the bidirectional screw rod (18). The guide rods (19) are slidably connected to the brackets (12), and the guide rods (19) are fixed on the side connection frame (11).

5. The crankshaft grinding mechanism according to claim 1, characterized in that: The top and bottom of the connecting frame (9) are both provided with second supporting wheels (20) with adjustable positions, and each of the second supporting wheels (20) is drivingly connected to the polishing belt (16).

6. A crankshaft grinding mechanism according to claim 3, characterized in that: A protective cover (21) is hingedly connected to the connecting frame (9), and the protective cover (21) is arranged outside the side connecting frame (11). A third electric slide rail (26) for driving the belt transmission machine (15) to move is arranged on the base (1).

7. A crankshaft grinding mechanism according to claim 6, characterized in that: The third electric slide rail (26) is provided with a second electric slide rail (22), the second electric slide rail (22) is provided with a position-adjustable reinforcement block (23), the reinforcement block (23) is provided with a first drive motor (24), and the output end of the first drive motor (24) is provided with a top shaft rod (25).

8. The crankshaft grinding mechanism according to claim 1, characterized in that: A tooth groove (27) is formed on the outer side of the central tube (6); a second drive motor (28) for driving the grinding knife (7) to rotate is mounted on the top end of the central tube (6) via bolts; the second drive motor (28) is mounted on the output end of the first electric telescopic rod (4) via bolts.

9. A crankshaft grinding mechanism according to claim 8, characterized in that: A micro motor (29) is mounted on the support frame (5) by means of bolts. A worm (30) is provided at the output end of the micro motor (29). A worm wheel (31) is provided at the bottom of the worm wheel (30). The worm wheel (31) is rotatably connected to the support frame (5). The worm wheel (31) extends to the center tube (6) and meshes with the tooth groove (27).

10. A processing equipment, characterized in that: A crankshaft grinding mechanism comprising any one of claims 1 to 9.

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