Motorcycle clutch pressure plate reaming device

Abstract

The invention belongs to the technical field of clutch pressure plate reaming, and particularly relates to a motorcycle clutch pressure plate reaming device which comprises a bottom plate and a placement table, a plurality of telescopic legs are fixed to the corners of the top of the bottom plate, a pair of electric push rods are fixed to the top of the bottom plate, and the free ends of the telescopic legs and the free ends of the electric push rods are fixedly connected with the placement table. Notches are formed in the inner walls of the two sides of the placement table respectively, a fixing frame is fixedly connected to the free end of the x-direction platform and the free end of the y-direction platform above the placement table, a motor is fixedly connected to the fixing frame, a reamer bit is installed on an output shaft of the motor, and an anti-deviation mechanism is arranged on the placement table and used for preventing the pressing disc from shifting in the x direction during reaming. Movement of the pressing disc in the y direction and the z direction is limited through the notches, movement of the pressing disc in the x direction is limited in cooperation with the anti-deviation mechanism, the pressing disc can be rapidly and accurately fixed, displacement of the pressing disc in the chambering process is effectively avoided, and chambering stability and machining precision are improved.

Description

Technical Field

[0001] The invention relates to the technical field of clutch pressure plate hole enlarging, in particular to a clutch pressure plate hole enlarging device for a motorcycle. Background Art

[0002] The clutch is a device that can play the role of clutch between the engine and the wheel transmission device. The clutch includes a clutch pressure plate. After a certain mileage, the clutch pressure plate needs to be replaced to ensure the normal driving of the vehicle. During the production and manufacturing process of the clutch pressure plate of a motorcycle, the hole diameter of the replacement pressure plate is too small, which affects the installation effect of the pressure plate. Therefore, a pressure plate reaming device is needed to expand the hole of the pressure plate.

[0003] Traditional motorcycle clutch pressure plate expansion devices, in terms of pressure plate fixing, most devices use simple clamping or positioning methods, which cannot quickly and accurately fix the pressure plate, affecting the expansion efficiency of the pressure plate. Therefore, corresponding improvements are made to address this problem. Summary of the Invention

[0004] Based on the technical problems existing in the prior art, the present invention proposes a motorcycle clutch pressure plate reaming device.

[0005] The present invention proposes a motorcycle clutch pressure plate reaming device, comprising a base plate and a placement platform, wherein a plurality of telescopic legs are fixed at the corners of the top of the base plate, a pair of electric push rods are fixed at the top of the base plate, the free ends of the telescopic legs and the electric push rods are respectively fixedly connected to the placement platform, slots are respectively provided on the inner walls on both sides of the placement platform, and further comprises an x-axis platform above the placement platform, the free end of the x-axis platform is fixedly connected to the y-axis platform, the free end of the y-axis platform is fixedly connected to a fixing frame, a motor is fixedly connected to the fixing frame, a reaming drill bit is installed on the motor output shaft, and an anti-deviation mechanism is provided on the placement platform, the anti-deviation mechanism is used to prevent the pressure plate from shifting during reaming. x-direction shift; place the pressure plate between the two slots so that it is located in the middle of the placement table, so that the slots prevent the pressure plate from moving in the y-direction and z-direction, and then insert the anti-drift mechanism into two of the circular holes on the pressure plate to limit the movement of the pressure plate along the length direction of the placement table, that is, the x-direction, so that the pressure plate can be quickly fixed. After the fixation is completed, the reaming drill bit is driven to move to the top of the corresponding circular hole through the x-direction platform and the y-direction platform, and then the motor is started to drive the reaming drill bit to rotate, and then the electric push rod is started to drive the placement table and the pressure plate to move upward, so that the reaming drill bit will enter the corresponding circular hole for reaming.

[0006] Preferably, the anti-deviating mechanism includes a pair of sliders, a pair of guide posts fixedly connected to the top of the sliders, a positioning cone that can be inserted into the circular hole on the pressure plate is slidably connected between the two guide posts, and a spring is provided on the guide post, and the two ends of the spring are fixedly connected to the slider and the positioning cone respectively; the pressure plate is adjusted so that the two circular holes on the pressure plate are aligned with the two positioning cones respectively, and then the positioning cone is released, and the positioning cone is driven to move upward under the action of the spring to be inserted into the corresponding circular hole and press against the pressure plate, so that the pressure plate can be limited to move along the x direction by the two positioning cones. When the circular hole inserted with the positioning cone is reamed, the top end of the positioning cone will contact the reaming drill bit and be subjected to downward pressure, the spring will be compressed, and the positioning cone will move downward to avoid the reaming drill bit, so that the reaming drill bit can continue to ream downward. After the reaming is completed, the reaming drill bit leaves the circular hole, and the positioning cone will be inserted into the circular hole again under the elastic force of the spring and use its conical surface to press against the pressure plate again.

[0007] Preferably, a slide rail is fixedly connected to the bottom of the placement table, the slider is slidably connected to the slide rail, and a bidirectional screw is rotatably connected in the slide rail to form a threaded connection with the slider; the bidirectional screw is rotated, and then the bidirectional screw is used to drive the two sliders to move closer or away from each other, thereby adjusting the distance between the two positioning cones, so that it can adapt to different types of clutch pressure plates.

[0008] Preferably, it also includes an actuator, which includes an air pump fixedly connected to the slide rail, an air outlet end of the air pump is connected to a tee, and two air outlets of the tee are respectively connected to a hose, the positioning cone is a hollow structure, and dense exhaust holes with different angles are opened on the conical surface, the hose is connected to the air inlet pipe at the bottom of the positioning cone, the top of the positioning cone is embedded with a pressure switch, and solenoid valves are respectively installed in the two air outlets of the tee, and the pressure switch is connected to the corresponding solenoid valve in series; if the pressure plate shifts during the hole expansion process, the air pump can be used to inflate the positioning cone, and the positioning cone will move upward under the strong thrust of the airflow, and the cone surface will be used to face the circular The force generated by the hole drives the pressure plate back to its initial position to achieve the effect of correction. When the circular hole inserted with the positioning cone is reamed and then shifted, the reaming drill bit presses on the pressure switch at the top of one of the positioning cones, and the corresponding solenoid valve will be closed. In this way, the positioning cone will not be inflated, so it will not hinder the reaming of the reaming drill bit. The other positioning cone remains inflated, and the pressure plate can be reset by combining the other positioning cone and the reaming drill bit inserted into the circular hole. The airflow emerging from the exhaust hole at different angles will blow away the debris generated by the reaming that falls on the equipment components, thereby maintaining the cleanliness of the equipment.

[0009] Preferably, it also includes: a displacement acquisition module, which is installed on the slider and connected to the positioning cone, and is used to monitor the axial displacement of the positioning cone in real time, and generate a displacement fluctuation coefficient through the control module; a torque resistance acquisition module, which is installed on the output shaft of the motor, and is used to monitor the output torque of the motor in real time, and generate a torque fluctuation coefficient through the control module; the control module comprehensively analyzes the generated displacement fluctuation coefficient and torque fluctuation coefficient, generates an evaluation coefficient, determines whether the actuator needs to correct the pressure plate, compares the evaluation coefficient with a pre-set evaluation coefficient reference threshold, and controls the working state of the actuator according to the comparison result.

[0010] Preferably, the output and input ends of the displacement acquisition module and the output and input ends of the torque resistance acquisition module are electrically connected to the input and output ends of the control module respectively, and the output end of the control module is electrically connected to the input end of the air pump.

[0011] Preferably, the control module controls the working state of the actuator according to the comparison result in the following steps:

[0012] Real-time detection: The displacement acquisition module acquires the axial displacement of the positioning cone; the torque resistance acquisition module acquires the motor output torque;

[0013] Coefficient calculation: The control module calculates the displacement fluctuation coefficient, torque fluctuation coefficient and evaluation coefficient η;

[0014] Dynamic adjustment: If η<η th :Execution module standby; if η≥η th : Execution module starts, applying additional upward thrust to the positioning cone, η th is the reference threshold.

[0015] Preferably, the generation logic of the displacement fluctuation coefficient is:

[0016] S1. The displacement acquisition module is used to obtain the actual axial displacement of the positioning cone at different times during the T time when the reaming drill bit reams the hole against the pressure plate. The actual axial displacement obtained at the i-th time during the T time is calibrated as δ i ,i=1, 2, 3, 4, ..., n, i is a positive integer;

[0017] S2. Calculate the displacement fluctuation coefficient. The calculation expression is:

[0018]

[0019] Where, is the average displacement within time T; n is the number of sampling times within time T.

[0020] Preferably, the generation logic of the torque fluctuation coefficient is:

[0021] S1. Obtain the actual output torque of the motor at different times during the T time when the reaming drill bit reams the hole against the pressure plate through the torque resistance acquisition module, and calibrate the actual output torque obtained at the jth time during the T time as τ j ,j=1, 2, 3, 4, …, m, j is a positive integer;

[0022] S2. Calculate the torque fluctuation coefficient. The calculation expression is:

[0023]

[0024] Where, is the average torque within time T; j is the number of sampling times within time T.

[0025] Preferably, the control module performs a formula analysis according to the formula:

[0026]

[0027] Wherein, α and β are preset weight coefficients, α+β=1.

[0028] Compared with the prior art, the present invention provides a motorcycle clutch pressure plate reaming device, which has the following beneficial effects:

[0029] A motorcycle clutch pressure plate reaming device. This invention uses notches to limit the pressure plate's movement in the y and z directions, while an anti-drift mechanism limits movement in the x direction. This allows for quick and precise positioning of the pressure plate, effectively preventing displacement during reaming and improving reaming stability and machining accuracy. Furthermore, the anti-drift mechanism's adjustable positioning cone design adapts to different types of clutch pressure plates, enhancing the device's versatility.

[0030] 2. A motorcycle clutch pressure plate reaming device features an actuator that provides automatic deviation correction. During reaming, if the pressure plate shifts, an air pump inflates the positioning cone, which then applies force to the pressure plate, returning it to its initial position. This eliminates the need for manual intervention, significantly improving production efficiency and reducing scrap rates. Furthermore, during reaming, the system coordinates the pressure switch and solenoid valve to avoid obstruction to the reaming drill bit, ensuring smooth reaming.

[0031] 3. A motorcycle clutch pressure plate reaming device has densely distributed exhaust holes at different angles on the conical surface of the positioning cone. When the air pump is inflated, it can blow away the reaming debris that falls on the equipment components, maintain the cleanliness of the equipment, reduce the impact of debris on equipment operation and reaming accuracy, extend the service life of the equipment, and reduce equipment maintenance costs.

[0032] 4. A motorcycle clutch pressure plate reaming device uses a displacement acquisition module and a torque resistance acquisition module to monitor the axial displacement of the positioning cone and the motor's output torque in real time. The control module calculates and comprehensively analyzes the displacement and torque fluctuation coefficients to generate an evaluation coefficient, which is used to determine whether the actuator needs to correct the pressure plate. This real-time monitoring and intelligent control method can promptly identify potential problems during the reaming process and implement appropriate adjustments to ensure stable and consistent reaming quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the overall structure of a motorcycle clutch pressure plate expansion device proposed by the present invention;

[0034] Figure 2 This is a schematic diagram of a motorcycle clutch pressure plate expansion device proposed by the present invention when the pressure plate is fixed by a positioning cone;

[0035] Figure 3 This is a schematic cross-sectional structural diagram of a slide rail of a motorcycle clutch pressure plate expansion device proposed by the present invention;

[0036] Figure 4 This is a schematic structural diagram of the x-axis platform and y-axis platform of a motorcycle clutch pressure plate expansion device proposed by the present invention;

[0037] Figure 5 This is a system block diagram of a motorcycle clutch pressure plate expansion device proposed by the present invention.

[0038] In the figure: 1. Base plate; 2. Telescopic legs; 3. Electric push rod; 4. Placement table; 5. Slot; 6. X-axis platform; 7. Y-axis platform; 8. Fixed frame; 9. Motor; 10. Reaming drill bit; 11. Slider; 12. Guide column; 13. Spring; 14. Positioning cone; 15. Slide rail; 16. Bidirectional screw; 17. Exhaust hole; 18. Air pump; 19. Tee; 20. Hose; 21. Displacement acquisition module; 22. Torque resistance acquisition module; 23. Control module. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0041] Reference Figure 1-Figure 5 A motorcycle clutch pressure plate reaming device includes a base plate 1 and a placement platform 4. A plurality of telescopic legs 2 are fixed at the corners of the top of the base plate 1. A pair of electric push rods 3 are fixed on the top of the base plate 1. The free ends of the telescopic legs 2 and the electric push rods 3 are respectively fixedly connected to the placement platform 4. Notches 5 are respectively provided on the inner walls on both sides of the placement platform 4. The device also includes an x-axis platform 6 above the placement platform 4. The free end of the x-axis platform 6 is fixedly connected to a y-axis platform 7. The free end of the y-axis platform 7 is fixedly connected to a fixing frame 8. A motor 9 is fixedly connected to the fixing frame 8. A reaming drill bit 10 is installed on the output shaft of the motor 9. An anti-deviation mechanism is provided on the placement platform 4. The anti-deviation mechanism is used to prevent the pressure plate from shifting in the x-axis during reaming.

[0042] When in use, the pressure plate is placed between the two slots 5 so that it is located in the middle position of the placement table 4. In this way, the slot 5 prevents the pressure plate from moving in the y and z directions. Then, the anti-deviation mechanism is inserted into two of the circular holes on the pressure plate to limit the movement of the pressure plate along the length direction of the placement table 4, that is, the x direction. In this way, the pressure plate can be quickly fixed. After the fixation is completed, the reaming drill bit 10 is driven to move to the top of the corresponding circular hole through the x-direction platform 6 and the y-direction platform 7. Then the motor 9 is started to drive the reaming drill bit 10 to rotate, and then the electric push rod 3 is started to drive the placement table 4 and the pressure plate to move upward, so that the reaming drill bit 10 will enter the corresponding circular hole for reaming.

[0043] The anti-drift mechanism includes a pair of sliders 11, a pair of guide posts 12 are fixedly connected to the top of the sliders 11, a positioning cone 14 that can be inserted into the circular hole on the pressure plate is slidably connected between the two guide posts 12, and a spring 13 is sleeved on the guide post 12, and the two ends of the spring 13 are fixedly connected to the slider 11 and the positioning cone 14 respectively;

[0044] When in use, adjust the pressure plate so that the two circular holes on the pressure plate are aligned with the two positioning cones 14 respectively, and then loosen the positioning cone 14. Under the action of the spring 13, the positioning cone 14 is driven to move upward and inserted into the corresponding circular hole, and press against the pressure plate. In this way, the two positioning cones 14 can limit the movement of the pressure plate along the x direction. When the circular hole into which the positioning cone 14 is inserted is being reamed, the top end of the positioning cone 14 will contact the reaming drill bit 10 and be subjected to downward pressure. The spring 13 will be compressed, and the positioning cone 14 will move downward to avoid the reaming drill bit 10, so that the reaming drill bit 10 can continue to ream downward. After the reaming is completed, the reaming drill bit 10 leaves the circular hole, and the positioning cone 14 will be inserted into the circular hole again under the elastic force of the spring 13 and use its conical surface to press against the pressure plate again.

[0045] Furthermore, a slide rail 15 is fixedly connected to the bottom of the placement platform 4, and the slider 11 is slidably connected to the slide rail 15. A bidirectional screw 16 is rotatably connected to the slide rail 15 and is threadedly connected to the slider 11.

[0046] When in use, the bidirectional screw 16 is rotated, and then the bidirectional screw 16 is used to drive the two sliders 11 to move closer to or away from each other, thereby adjusting the distance between the two positioning cones 14, so that different types of clutch pressure plates can be adapted.

[0047] In addition, a motorcycle clutch pressure plate reaming device also includes an actuator, which includes an air pump 18 fixedly connected to a slide rail 15. The air outlet end of the air pump 18 is connected to a tee 19, and the two air outlets of the tee 19 are respectively connected to a hose 20. The positioning cone 14 is a hollow structure, and the conical surface is provided with densely distributed exhaust holes 17 at different angles. The hose 20 is connected to the air inlet pipe at the bottom of the positioning cone 14. The top of the positioning cone 14 is embedded with a pressure switch. The two air outlets of the tee 19 are respectively installed with a solenoid valve. The pressure switch and the corresponding solenoid valve are connected in series.

[0048] During use, if the pressure plate shifts during the reaming process, air can be inflated into the positioning cone 14 through the air pump 18. The positioning cone 14 will move upward due to the strong thrust of the airflow, and the pressure plate will be driven back to its original position by the force generated by the cone surface on the circular hole, thereby achieving the effect of correction. When the circular hole inserted with the positioning cone 14 is reamed and then shifted, the reaming drill bit 10 presses on the pressure switch at the top of one of the positioning cones 14, and the corresponding solenoid valve will be closed. In this way, the positioning cone 14 will not be inflated, so it will not hinder the reaming of the reaming drill bit 10. The other positioning cone 14 remains inflated, and the pressure plate can be reset by cooperating with the other positioning cone 14 and the reaming drill bit 10 inserted into the circular hole, and the airflow emerging from the exhaust hole 17 at different angles will blow away the debris generated by reaming that falls on the equipment components, thereby maintaining the cleanliness of the equipment.

[0049] In another embodiment, a motorcycle clutch pressure plate reaming device further includes:

[0050] The displacement acquisition module 21 is installed on the slider 11 and connected to the positioning cone 14, and is used to monitor the axial displacement of the positioning cone 14 in real time and generate the displacement fluctuation coefficient through the control module 23;

[0051] The torque resistance acquisition module 22 is installed on the output shaft of the motor 9 and is used to monitor the output torque of the motor 9 in real time and generate a torque fluctuation coefficient through the control module 23;

[0052] It should be noted that the displacement acquisition module 21 can be a displacement sensor or other device capable of monitoring the axial displacement of the positioning cone 14 in real time, the torque resistance acquisition module 22 can be a torque sensor or other device capable of monitoring the output torque of the motor 9 in real time, and the control module 23 is an embedded controller (such as the STM32 series) with an integrated data fusion algorithm. Therefore, the displacement acquisition module 21, the torque resistance acquisition module 22, and the control module 23 are not specifically limited here and can be selected according to actual needs;

[0053] When in use, the control module conducts a comprehensive analysis of the generated displacement fluctuation coefficient and torque fluctuation coefficient, generates an evaluation coefficient, determines whether the actuator needs to correct the pressure plate, compares the evaluation coefficient with the pre-set evaluation coefficient reference threshold, and controls the working status of the actuator based on the comparison result.

[0054] Among them, the output end and input end of the displacement acquisition module 21 and the output end and input end of the torque resistance acquisition module 22 are electrically connected to the input end and output end of the control module 23 respectively, and the output end of the control module 23 is electrically connected to the input end of the air pump 18.

[0055] The control module 23 controls the working state of the actuator according to the comparison result in the following steps:

[0056] Real-time detection: the displacement acquisition module 21 acquires the axial displacement of the positioning cone 14; the torque resistance acquisition module 22 acquires the output torque of the motor 9;

[0057] Coefficient calculation:

[0058] Calculate the displacement fluctuation coefficient:

[0059] Among them, the displacement fluctuation coefficient δ σ Quantify the axial displacement discreteness of the positioning cone 14 in the circular hole of the pressure plate, δ σ The larger the value, the more violent the shaking of the positioning cone 14, which indicates that the pressure plate has a horizontal offset in the groove (due to insufficient preload of the spring 13), indicating that the actuator needs to intervene to correct the deviation; σThe smaller the value, the smoother the movement of the positioning cone 14, and the pressure plate is securely fixed, indicating that no actuator intervention is required for correction.

[0060] The generation logic of the displacement fluctuation coefficient is:

[0061] S1, using the displacement acquisition module 21 to obtain the actual axial displacement of the positioning cone 14 at different times during the time T when the reaming drill bit 10 reams the pressure plate, and calibrate the actual axial displacement obtained at the i-th time during the time T as δ i ,i=1, 2, 3, 4, ..., n, i is a positive integer;

[0062] S2. Calculate the displacement fluctuation coefficient. The calculation expression is:

[0063]

[0064] Where, is the average displacement within time T; n is the number of sampling times within time T.

[0065] Calculate the torque fluctuation coefficient:

[0066] Among them, the torque fluctuation coefficient τ σ Characterizes the abnormal fluctuation of the resistance torque of the reamer drill bit 10, τ σ The larger the value, the more violent the torque of the reaming drill bit 10 will oscillate, which reflects abnormal machining resistance (unilateral force caused by drill wear or pressure plate deflection), indicating that the actuator needs to intervene and correct the deviation; τ σ The smaller the value, the smoother the torque output, the normal expansion process, indicating that the actuator does not need to intervene to correct the deviation;

[0067] The generation logic of the torque fluctuation coefficient is:

[0068] S1. The torque resistance acquisition module 22 is used to obtain the actual output torque of the motor 9 at different times during the time T when the reaming drill bit 10 reams the pressure plate. The actual output torque obtained at the jth time during the time T is calibrated as τ. j ,j=1, 2, 3, 4, …, m, j is a positive integer;

[0069] S2. Calculate the torque fluctuation coefficient. The calculation expression is:

[0070]

[0071] Where, is the average torque within time T; j is the number of sampling times within time T.

[0072] Calculate the evaluation coefficient η: The evaluation coefficient η incorporates the displacement fluctuation δ σ and torque fluctuation τ σThe coupling effect of η is a comprehensive indicator for evaluating the risk of system instability. The larger the η value, the higher the risk of system loss of control, and the need to immediately strengthen the correction efforts. The smaller the η value, the more stable the system operation, and the current state is maintained.

[0073] Among them, the control module 23 performs a formula analysis according to the formula:

[0074]

[0075] Wherein, α and β are preset weight coefficients, α+β=1.

[0076] Dynamic adjustment: If η<η th :Execution module standby; if η≥η th : The execution module starts, applying an additional upward thrust to the positioning cone 14, η th is the reference threshold.

[0077] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A motorcycle clutch pressure plate reaming device, comprising a base plate (1) and a placement platform (4), characterized in that: A plurality of telescopic legs (2) are fixed at the corners of the top of the base plate (1), a pair of electric push rods (3) are fixed at the top of the base plate (1), the free ends of the telescopic legs (2) and the electric push rods (3) are respectively fixedly connected to the placement platform (4), notches (5) are respectively provided on the inner walls of both sides of the placement platform (4), and an x-direction platform (6) above the placement platform (4) is also included, the free end of the x-direction platform (6) is fixedly connected to the y-direction platform (7), the free end of the y-direction platform (7) is fixedly connected to a fixing frame (8), a motor (9) is fixedly connected to the fixing frame (8), and a reaming drill bit (10) is installed on the output shaft of the motor (9), and an anti-drift mechanism is provided on the placement platform (4), the anti-drift mechanism is used to prevent the pressure plate from shifting in the x-direction when reaming.

2. A motorcycle clutch pressure plate reaming device according to claim 1, characterized in that: The anti-deviating mechanism comprises a pair of sliders (11), a pair of guide posts (12) fixedly connected to the tops of the sliders (11), a positioning cone (14) capable of being inserted into a circular hole on a pressure plate being slidably connected between the two guide posts (12), a spring (13) being sleeved on the guide posts (12), and two ends of the spring (13) being fixedly connected to the sliders (11) and the positioning cone (14), respectively.

3. A motorcycle clutch pressure plate reaming device according to claim 2, characterized in that: A slide rail (15) is fixedly connected below the placement platform (4), the slider (11) is slidably connected to the slide rail (15), and a bidirectional screw (16) is rotatably connected in the slide rail (15) and is threadedly connected to the slider (11).

4. A motorcycle clutch pressure plate reaming device according to claim 2, characterized in that: The invention also includes an actuator, which includes an air pump (18) fixedly connected to the slide rail (15), an air outlet end of the air pump (18) is connected to a tee (19), and two air outlets of the tee (19) are respectively connected to hoses (20), the positioning cone (14) is a hollow structure, and a conical surface is provided with densely distributed exhaust holes (17) at different angles, the hose (20) is connected to the air inlet pipe at the bottom of the positioning cone (14), the top end of the positioning cone (14) is embedded with a pressure switch, and two air outlets of the tee (19) are respectively installed with electromagnetic valves, and the pressure switch is connected in series with the corresponding electromagnetic valve.

5. The motorcycle clutch pressure plate reaming device according to claim 4, characterized in that: Also includes: A displacement acquisition module (21) is mounted on the slider (11) and connected to the positioning cone (14), and is used to monitor the axial displacement of the positioning cone (14) in real time and generate a displacement fluctuation coefficient through a control module (23); A torque resistance acquisition module (22) is mounted on the output shaft of the motor (9) and is used to monitor the output torque of the motor (9) in real time and generate a torque fluctuation coefficient through a control module (23); The generated displacement fluctuation coefficient and torque fluctuation coefficient are comprehensively analyzed by the control module (23) to generate an evaluation coefficient, which is compared with a preset evaluation coefficient reference threshold, and the working state of the actuator is controlled according to the comparison result.

6. A motorcycle clutch pressure plate reaming device according to claim 5, characterized in that: The output end and input end of the displacement acquisition module (21) and the output end and input end of the torque resistance acquisition module (22) are electrically connected to the input end and output end of the control module (23), respectively. The output end of the control module (23) is electrically connected to the input end of the air pump (18).

7. The motorcycle clutch pressure plate reaming device according to claim 5, characterized in that: The control module (23) controls the working state of the actuator according to the comparison result in the following steps: The displacement acquisition module (21) acquires the axial displacement of the positioning cone (14); the torque resistance acquisition module (22) acquires the output torque of the motor (9); the control module (23) calculates the displacement fluctuation coefficient, the torque fluctuation coefficient and the evaluation coefficient η, and compares them with the reference threshold η th Compare, if η<η th , the execution module is in standby mode, if η≥η th , the execution module starts, applying additional upward thrust to the positioning cone (14).

8. The motorcycle clutch pressure plate reaming device according to claim 5, characterized in that: The generation logic of the displacement fluctuation coefficient is: S1. The displacement acquisition module (21) is used to obtain the actual axial displacement of the positioning cone (14) at different moments in time T when the reaming drill bit (10) reams the pressure plate, and the actual axial displacement obtained at the i-th moment in time T is calibrated as δ i ,i=1, 2, 3, 4, ..., n, i is a positive integer; S2. Calculate the displacement fluctuation coefficient. The calculation expression is: Where, is the average displacement within time T; n is the number of sampling times within time T.

9. The motorcycle clutch pressure plate reaming device according to claim 8, characterized in that: The generation logic of the torque fluctuation coefficient is: S1. Obtain the actual output torque of the motor (9) at different moments in time T when the reaming drill bit (10) reams the pressure plate through the torque resistance acquisition module (22), and calibrate the actual output torque obtained at the jth moment in time T as τ j ,j=1, 2, 3, 4, …, m, j is a positive integer; S2. Calculate the torque fluctuation coefficient. The calculation expression is: Where, is the average torque within time T; j is the number of sampling times within time T.

10. A motorcycle clutch pressure plate reaming device according to claim 9, characterized in that: The control module (23) performs a formula analysis according to the formula: Wherein, α and β are preset weight coefficients, α+β=1.

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