A clutch cover assembly pressure plate parallelism detection device

Abstract

A parallelism detection device for a clutch cover assembly pressure plate, comprising a support frame fixed to a tabletop. The support frame is connected with a clamping and driving mechanism for clamping and driving the pressure plate to rotate. On one side of the support frame, a dial indicator mechanism for detecting the parallelism of the pressure plate is installed. At the upper end of the support frame, an adjusting support mechanism for supporting and driving the dial indicator mechanism to rotate is installed. In the present invention, the electric push rod of the adjusting support mechanism works to drive the dial indicator mechanism to move downward, so that the measuring head contacts the pressure plate. The movement of the measuring head drives the connecting rod to move, driving the rack and the pointer to rotate, so as to visually detect the parallelism of the pressure plate. During the rotation of the pointer, the rack squeezes the airbag of the data detection mechanism, increasing the pressure of the pressure sensor, and the verticality is displayed in real time through the display screen, more intuitively detecting the parallelism of the pressure plate. Before the dial indicator mechanism detects the parallelism of the pressure plate, the cleaning brush of the cleaning mechanism first contacts the pressure plate to clean the dust on the pressure plate.

Description

Technical Field

[0001] The present invention relates to the field of detecting the parallelism of a pressure plate, and particularly to a device for detecting the parallelism of a pressure plate of a clutch cover assembly. Background Art

[0002] The main transmission mechanism in an automobile is a clutch, which is mainly used to transmit the power of the engine to the transmission wheel. The pressure plate is an important component of the clutch and plays an important role in the clutch. After the clutch pressure plate is produced, due to process conditions, the surface of some pressure plates is uneven. This requires a special device for detecting the surface of the pressure plate, that is, detecting the parallelism of the pressure plate surface, to determine whether the produced pressure plate is qualified and needs rework. In the prior art, usually, a person manually holds a dial indicator to detect the parallelism on the surface of the pressure plate. The accuracy of the detection result is relatively low. And by visually observing the dial indicator, when the pointer of the dial indicator rotates slightly, it is very difficult for the naked eye to distinguish, which also affects the accuracy of the detection result of the pressure plate parallelism. Moreover, during the detection process of the pressure plate parallelism, the dust in the air adheres to the pressure plate. When the probe of the dial indicator contacts the pressure plate, it may first touch the dust, so that the position detected by the dial indicator is not the real position of the pressure plate surface, which will also affect the detection result. Summary of the Invention

[0003] In view of the above situation, to overcome the defects of the prior art, the present invention provides a device for detecting the parallelism of a pressure plate of a clutch cover assembly to solve the above problems.

[0004] To achieve the above object, a device for detecting the parallelism of a pressure plate of a clutch cover assembly according to the present invention includes a support frame fixed to a tabletop. The support frame is connected with a clamping and driving mechanism for clamping and driving the pressure plate to rotate. On one side of the support frame, a dial indicator mechanism for detecting the parallelism of the pressure plate is installed. At the upper end of the support frame, an adjusting and supporting mechanism for supporting and driving the dial indicator mechanism to rotate is installed. The dial indicator mechanism is equipped with a data detection mechanism for displaying the data detected in real time during the detection of the pressure plate parallelism. At the lower end of the dial indicator mechanism, a cleaning mechanism for cleaning the surface of the pressure plate is connected. The cleaning mechanism includes a support sleeve that can move up and down. The end of the support sleeve is connected with a cleaning brush, and the cleaning brush contacts the outer surface of the pressure plate to clean the dust.

[0005] Specifically, the clamping and driving mechanism includes a support base fixed on one side of the support frame. At the upper end of the support base, a first motor is fixed. The output shaft of the first motor is fixed with a fixing block for passing through the pressure plate hole of the pressure plate. The fixing block is threadedly connected with a screw clamping block near the outside. The end cross-section of the screw clamping block is in a T-shaped structure. A through hole is provided through the upper end position of the support frame.

[0006] Specifically, the adjustment and support mechanism includes a fixed shaft, which is rotatably connected to the horizontal end of the top of the support frame. Two threaded discs are threadedly connected to the fixed shaft and clamped on the horizontal end of the top of the support frame. A horizontally arranged support plate is fixed to the upper end of the fixed shaft, and a vertically arranged electric push rod is fixedly connected inside the support plate.

[0007] Specifically, the dial indicator mechanism includes a meter housing, the outer surface of which is fixedly connected to the lower end of the telescopic rod of the electric push rod. A measuring head is horizontally slidably connected to the meter housing for contacting the outer surface of the pressure plate. A shaft seat is fixed inside the meter housing, and an arc-shaped gear bar is rotatably connected to the shaft seat. A connecting rod is rotatably connected between one side of the gear bar and the end of the measuring head. A gear is rotatably connected to the central part inside the meter housing, and the gear is meshed with the outer surface of the right side of the gear bar. A dial needle arranged outside the meter housing is fixed to the axis of the gear. A shock-proof spring is fixedly connected between the end of the measuring head and the shaft seat.

[0008] Specifically, the data detection mechanism includes a sleeve, the meter housing is fixedly penetrated with the sleeve, a pressure sensor is fixed inside the sleeve, an airbag is fixed to the end of the pressure sensor, the airbag is communicated with the pressure sensor, and the outer surface of the airbag contacts the end of the gear bar. The pressure sensor is connected with a power cord for connecting to a display screen.

[0009] Specifically, the cleaning mechanism further includes a second motor, the second motor is fixed to the lower end of the outer surface of the meter housing, a reciprocating lead screw is fixed to the output shaft of the second motor, a horizontally arranged support cross bar is threadedly connected to the reciprocating lead screw, a support sleeve is horizontally slidably connected to the support cross bar, a cleaning brush is detachably connected to the end of the support sleeve, a spring is fixed between the support sleeve and the support cross bar, and a vertical baffle slide rail is fixed to the lower end of the outer surface of the meter housing. The end of the support cross bar is vertically slidably connected to the baffle slide rail, and the baffle slide rail is located on the left side of the pressure sensor.

[0010] Specifically, the cleaning mechanism further includes a mounting frame, the cleaning brush is fixedly connected to two L-shaped mounting frames, the mounting frames are slidably clamped on the outer surface of the end of the support sleeve, and a mounting bolt is threadedly connected between the mounting frames and the end of the support sleeve.

[0011] Beneficial effects:

[0012] In the present invention, the electric push rod of the support mechanism is adjusted to drive the dial indicator mechanism to move downward, so that the probe contacts the pressure plate. The movement of the probe drives the connecting rod to move, driving the rack and the pointer to rotate, so as to visually detect the parallelism of the pressure plate. During the rotation of the pointer, the rack squeezes the airbag of the data detection mechanism, increasing the pressure of the pressure sensor. The verticality is displayed in real time through the display screen, making it more intuitive to detect the parallelism of the pressure plate. Before the dial indicator mechanism detects the parallelism of the pressure plate, the cleaning brush of the cleaning mechanism first contacts the pressure plate to clean the dust on the pressure plate. And the rotation of the reciprocating screw drives the cleaning brush to move up and down below the dial indicator mechanism to clean the position to be detected on the pressure plate, cleaning the dust stained on the surface of the pressure plate in advance, constantly cleaning the dust on the surface of the pressure plate to avoid affecting the detection result of the parallelism of the pressure plate and ensuring the accuracy of the detection structure. Moreover, by rotating and adjusting the support mechanism, the dial indicator mechanism is driven to rotate to the other side of the pressure plate, and the parallelism of both sides of the pressure plate can be detected without disassembling the pressure plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0015] Figure 2 is a structural schematic diagram of the adjustment support mechanism and the dial indicator of the present invention after adjustment.

[0016] Figure 3 is a cross-sectional structural schematic diagram of the dial indicator mechanism, the data detection mechanism and the cleaning mechanism of the present invention.

[0017] Figure 4 is a structural schematic diagram of the cleaning mechanism of the present invention;

[0018] Figure 5 is a circuit schematic diagram of the present invention.

[0019] In the figure: 1. Support frame, 2. Clamping drive mechanism, 21. Support base, 22. First motor, 23. Fixed block, 24. Screw clamp block, 25. Perforation, 3. Pressure plate, 31. Pressure plate hole, 4. Adjusting support mechanism, 41. Fixed shaft, 42. Threaded disc, 43. Electric push rod, 44. Support plate, 5. Dial indicator mechanism, 51. Gauge housing, 52. Pointer, 53. Probe, 54. Gear, 55. Rack, 56. Axle seat, 57. Shock-absorbing spring, 58. Connecting rod, 6. Data detection mechanism, 61. Sleeve, 62. Airbag, 63. Power cord, 64. Pressure sensor, 7. Cleaning mechanism, 71. Support sleeve, 72. Cleaning brush, 73. Spring, 74. Support cross bar, 75. Second motor, 76. Reciprocating lead screw, 77. Baffle slide rail, 78. Mounting bracket, 79. Mounting bolt. Detailed implementation manners

[0020] The following Figures 1-5 further elaborates on the detailed implementation manners of the present invention.

[0021] As Figures 1-5 shown, a clutch cover assembly pressure plate parallelism detection device of the present invention includes a support frame 1 fixed to the tabletop. The support frame 1 is connected with a clamping drive mechanism 2 for clamping and driving the pressure plate 3 to rotate. On one side of the support frame 1, a dial indicator mechanism 5 for detecting the parallelism of the pressure plate 3 is installed. At the upper end of the support frame 1, an adjusting support mechanism 4 for supporting and driving the dial indicator mechanism 5 to rotate is installed. The dial indicator mechanism 5 is installed with a data detection mechanism 6 for real-time display of data during the detection of the parallelism of the pressure plate 3. At the lower end of the dial indicator mechanism 5, a cleaning mechanism 7 for cleaning the surface of the pressure plate 3 is connected. The cleaning mechanism 7 includes a support sleeve 71 that can move up and down. The end of the support sleeve 71 is connected with a cleaning brush 72. The cleaning brush 72 contacts the outer surface of the pressure plate 3 for cleaning dust.

[0022] Specifically, the clamping drive mechanism 2 includes a support base 21. The support base 21 is fixed on one side of the support frame 1. A first motor 22 is fixed to the upper end of the support base. The output shaft of the first motor 22 is fixed with a fixed block 23 for passing through the pressure plate hole 31 of the pressure plate 3. The fixed block 23 is threadedly connected with a screw clamp block 24 near the outside. The end cross-section of the screw clamp block 24 is in a T-shaped structure. A perforation 25 is provided through the upper end position of the support frame 1. The operator fixes the bottom end of the support frame 1 to the tabletop to support the entire device. Then, the pressure plate 3 is sleeved outside the fixed block 23 through the pressure plate hole 31. The screw clamp block 24 is rotated to extend and abut against the inner surface of the pressure plate 3 to support and clamp the pressure plate 3, so that the center line of the pressure plate 3 coincides with the center line of the fixed shaft 41. By turning on the external power switch of the first motor 22, the first motor 22 is driven to work, driving the fixed block 23 to rotate and driving the pressure plate 3 to rotate at a low speed for preliminary preparation of the parallelism detection of the pressure plate 3.

[0023] Specifically, the adjusting support mechanism 4 includes a fixed shaft 41, which is rotatably connected to the horizontal end of the top of the support frame 1. Two threaded disks 42 are threadedly connected to the fixed shaft 41 and clamped on the horizontal end of the top of the support frame 1. A horizontally arranged support plate 44 is fixed to the upper end of the fixed shaft 41, and a vertically arranged electric push rod 43 is fixedly connected inside the support plate 44. Personnel move and approach to clamp the upper end of the support frame 1 by rotating the two threaded disks 42, and lock the fixed shaft 41 to make the support plate 44 support the electric push rod 43. Similarly, by rotating the two threaded disks 42 in the reverse direction to separate, the support plate 44 and the fixed shaft 41 can be rotated 180 degrees to adjust the direction of the dial indicator mechanism 5.

[0024] Specifically, the dial indicator mechanism 5 includes a dial housing 51. The outer surface of the dial housing 51 is fixedly connected to the lower end of the telescopic rod of the electric push rod 43. The dial housing 51 is horizontally slidably connected with a measuring head 53 for contacting the outer surface of the pressure plate 3. A shaft seat 56 is fixedly installed inside the dial housing 51. A rack 55 with an arc-shaped structure is rotatably connected to the shaft seat 56. A connecting rod 58 is rotatably connected between one side of the rack 55 and the end of the measuring head 53. A gear 54 is rotatably connected to the central part inside the dial housing 51. The gear 54 is meshed with the outer surface of the right side of the rack 55. The center of the gear 54 is fixedly installed with a pointer 52 arranged outside the dial housing 51. A shock-proof spring 57 is fixedly connected between the end of the measuring head 53 and the shaft seat 56. When the pressure plate 3 is clamped outside the fixed block 23, the operator turns on the external power switch of the electric push rod 43 to make the electric push rod 43 work and extend, driving the dial housing 51 to move downward, so that the measuring head 53 moves downward until the end of the measuring head 53 contacts the outer surface of the right side of the pressure plate 3. At this time, the pointer 52 points to the zero value on the dial housing 51, which is the qualified parallelism of the pressure plate 3. Then, during the continuous rotation of the pressure plate 3 driven by the first motor 22, if the position of the pointer 52 does not change, it means that there is no convex surface on the right surface of the pressure plate 3, indicating that the parallelism of the detection position of the measuring head 53 on the right surface of the pressure plate 3 is qualified. If there is a convex surface on the right surface of the pressure plate 3, the convex surface pushes the measuring head 53 to move rightward, causing the connecting rod 58 to move and compressing the shock-proof spring 57. The shock-proof spring 57 can minimize the vibration to such an extent that the influence on the pointer 52 can be ignored. The right side of the connecting rod 58 pushes the rack 55 to rotate clockwise, thereby driving the gear 54 to rotate counterclockwise and driving the pointer 52 to rotate counterclockwise and deviate from the zero value position. The operator can directly see that the parallelism of the right surface of the pressure plate 3 is unqualified through the pointer 52. Moreover, a plurality of teeth with a smaller tooth gap are arranged on the right side of the rack 55 with an arc-shaped structure and are matched with the gear 54. When the rack 55 rotates slightly, it can drive the gear 54 and the pointer 52 to rotate, improving the precision of the pointer 52 and enabling the parallelism of the pressure plate 3 to be detected within a certain range. When the precision detection of a circle on the right surface of the pressure plate 3 is completed, the electric push rod 43 is continuously controlled to work and extend again, so that the dial housing 51 and the measuring head 53 move downward by a distance (the distance of each downward movement is set according to the diameter of the pressure plate 3, for example, the distance of each downward movement is one-tenth of the distance between the pressure plates 3). Repeat this process until the parallelism detection of the position gradually approaching the center of the circle on the right surface of the pressure plate 3 is completed. When there is no convex surface on the right surface of the pressure plate 3, the shock-proof spring 57 pushes the measuring head 53 to move rightward.

[0025] Specifically, the data detection mechanism 6 includes a sleeve 61. The watch case 51 is fixedly penetrated with the sleeve 61. A pressure sensor 64 is fixed inside the sleeve 61. An airbag 62 is fixed at the end of the pressure sensor 64. The airbag 62 is communicated with the pressure sensor 64, and the outer surface of the airbag 62 contacts the end of the rack 55. The pressure sensor 64 is connected with a power line 63 for connecting with the display screen. The person externally connects the pressure sensor 64 to the display screen for real-time data display. When the probe 53 detects that the convex surface on the right surface of the pressure plate 3 moves to the right and pushes the rack 55 to rotate clockwise, the lower end of the rack 55 moves to squeeze the airbag 62, causing the airbag 62 to compress and send gas into the pressure sensor 64. At this time, the pressure of the pressure sensor 64 increases and shows the specific value through the display screen. When there is no convex surface or the convex surface disappears on the right surface of the pressure plate 3, the rack 55 rotates counterclockwise and gradually resets, the airbag 62 gradually expands and resets, and the pressure in the pressure sensor 64 gradually decreases and disappears, and the specific value is displayed again through the display screen. Thus, during the parallelism detection process of the pressure plate 3, the change of the pressure value is displayed in real time and compared with the initial value, and the parallelism of the pressure plate 3 can be detected more intuitively.

[0026] Specifically, the cleaning mechanism 7 further includes a second motor 75. The second motor 75 is fixed to the lower end of the outer surface of the watch case 51. The output shaft of the second motor 75 is fixed with a reciprocating lead screw 76. The reciprocating lead screw 76 is threadedly connected with a horizontally arranged support cross bar 74. The support sleeve 71 is horizontally slidably connected with the support cross bar 74. The cleaning brush 72 is detachably connected to the end of the support sleeve 71. A spring 73 is fixed between the support sleeve 71 and the support cross bar 74. A vertically arranged baffle slide rail 77 is fixed to the lower end of the outer surface of the watch case 51. The end of the support cross bar 74 is vertically slidably connected with the baffle slide rail 77. The baffle slide rail 77 is located on the left side of the pressure sensor 64. Before the dial indicator mechanism 5 is pushed down by the electric push rod 43 to contact the pressure plate 3, the cleaning mechanism 7 under the watch case 51 is first driven to move down to contact the right surface of the pressure plate 3, that is, the cleaning brush 72 moves down to contact the pressure plate 3 first. During the rotation of the pressure plate 3, the dust on the right surface of the pressure plate 3 is cleaned by the cleaning brush 72, avoiding the influence of dust on the detection result when the probe 53 contacts the pressure plate 3. And during the contact process between the probe 53 and the pressure plate 3, the person turns on the external power switch of the second motor 75 to make the second motor 75 work to drive the reciprocating lead screw 76 to rotate, driving the support cross bar 74 to move up and down along the baffle slide rail 77, driving the cleaning brush 72 to move up and down, and cleaning the position to be detected on the right surface of the pressure plate 3 in real time, avoiding dust sticking to the right surface of the pressure plate 3, cleaning the dust in advance, and a spring 73 is connected between the support sleeve 71 and the support cross bar 74. The support sleeve 71 and the cleaning brush 72 can slide within a small range in the horizontal direction to adapt to the convex surface position on the right surface of the pressure plate 3.

[0027] Specifically, the cleaning mechanism 7 further includes a mounting bracket 78. The cleaning brush 72 is fixedly connected to two L-shaped mounting brackets 78. The mounting brackets 78 are slidably clamped on the outer surface of the end of the support sleeve 71. An installation bolt 79 is threadedly connected between the mounting bracket 78 and the end of the support sleeve 71. The operator can disassemble the installation bolt 79, move the mounting bracket 78 away from the support sleeve 71, and then disassemble the cleaning brush 72 for cleaning and replacement.

[0028] The operator controls the electric push rod 43 to work and contract, so that the probe 53 moves upward above the pressure plate 3. The support plate 44 can be rotated 180 degrees to make the dial indicator mechanism 5 rotate 180 degrees and move to the left surface of the pressure plate 3. During the rotation process, first manually push the probe 53 into the watch case 51 to avoid the probe 53 touching the support frame 1 until the probe 53 moves to the left side of the pressure plate 3. The probe 53 moves through the through hole 25 and contacts the left surface of the pressure plate 3 to detect the parallelism of the left surface of the pressure plate 3 without disassembling the pressure plate 3.

[0029] Working principle: The personnel of the present invention fix the bottom end of the support frame 1 to the tabletop to support the entire device. Then, the pressure plate 3 is sleeved outside the fixed block 23 through the pressure plate hole 31. The rotating screw clamp block 24 extends out and abuts against the inner surface of the pressure plate 3 to support and clamp the pressure plate 3, making the center line of the pressure plate 3 coincide with the center line of the fixed shaft 41. The personnel control the electric push rod 43 to work and extend, driving the watch case 51 to move downward. The cleaning brush 72 moves downward and first contacts the pressure plate 3. During the rotation of the pressure plate 3, the dust on the right surface of the pressure plate 3 is cleaned by the cleaning brush 72, avoiding the influence of dust on the detection result when the probe 53 contacts the pressure plate 3. And during the contact process between the probe 53 and the pressure plate 3, the personnel turn on the external power switch of the second motor 75 to make the second motor 75 work and drive the reciprocating lead screw 76 to rotate, driving the support cross bar 74 to move up and down along the baffle slide rail 77, driving the cleaning brush 72 to move up and down, and cleaning the position to be detected on the right surface of the pressure plate 3 in real time, avoiding dust sticking to the right surface of the pressure plate 3. Then the probe 53 moves downward until the end of the probe 53 contacts the outer surface on the right side of the pressure plate 3. At this time, the pointer 52 on the watch case 51 points to the zero value, which is the qualified parallelism of the pressure plate 3. Then, during the continuous rotation of the pressure plate 3 driven by the first motor 22, if the position of the pointer 52 does not change, there is no convex surface on the right surface of the pressure plate 3, indicating that the parallelism of the detection position of the probe 53 on the right surface of the pressure plate 3 is qualified. If there is a convex surface on the right surface of the pressure plate 3, the convex surface pushes the probe 53 to move to the right, causing the connecting rod 58 to move and compressing the shock-proof spring 57. The shock-proof spring 57 can minimize the vibration, and the influence on the pointer 52 can be ignored. The right side of the connecting rod 58 pushes the gear bar 55 to rotate clockwise, thereby driving the gear 54 to rotate counterclockwise and driving the pointer 52 to rotate counterclockwise and deviate from the zero value position. The personnel can directly see that the parallelism of the right surface of the pressure plate 3 is unqualified through the pointer 52. During the detection process, when the gear bar 55 rotates clockwise, the lower end of the gear bar 55 moves and squeezes the airbag 62, causing the airbag 62 to compress and send the gas into the pressure sensor 64. At this time, the pressure of the pressure sensor 64 increases and shows the specific value through the display screen. When there is no convex surface or the convex surface disappears on the right surface of the pressure plate 3, the gear bar 55 rotates counterclockwise and gradually resets, the airbag 62 gradually expands and resets, and the pressure in the pressure sensor 64 gradually decreases and disappears, and the specific value is shown through the display screen again. Thus, during the parallelism detection of the pressure plate 3, the change of the pressure value is displayed in real time and compared with the initial value, and the parallelism of the pressure plate 3 can be detected more intuitively.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. 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 clutch cover assembly pressure plate parallelism detection device, including a support frame (1) fixed to the tabletop, characterized in that, The support frame (1) is connected with a clamping and driving mechanism (2) for clamping and driving the rotating of the pressure plate (3). A dial indicator mechanism (5) for detecting the parallelism of the pressure plate (3) is installed on one side of the support frame (1). An adjusting support mechanism (4) for supporting and driving the rotation of the dial indicator mechanism (5) is installed at the upper end of the support frame (1). The dial indicator mechanism (5) is equipped with a data detection mechanism (6) for real-time display of the data detected for the parallelism of the pressure plate (3). The lower end of the dial indicator mechanism (5) is connected with a cleaning mechanism (7) for cleaning the surface of the pressure plate (3). The cleaning mechanism (7) includes a support sleeve (71) that can move up and down. The end of the support sleeve (71) is connected with a cleaning brush (72). The cleaning brush (72) contacts the outer surface of the pressure plate (3) for cleaning dust. The clamping and driving mechanism (2) includes a support base (21). The support base (21) is fixed on one side of the support frame (1). A first motor (22) is fixed at the upper end of the support base. A fixed block (23) is fixed on the output shaft of the first motor (22) for passing through the pressure plate hole (31) of the pressure plate (3). A screw clamp block (24) is threadedly connected near the outer side of the fixed block (23). The end cross-section of the screw clamp block (24) is in a T-shaped structure. A through hole (25) is provided through the upper end position of the support frame (1). The adjusting support mechanism (4) includes a fixed shaft (41). The fixed shaft (41) is rotationally connected to the horizontal end of the top of the support frame (1). Two threaded discs (42) are threadedly connected to the fixed shaft (41) and clamped on the horizontal end of the top of the support frame (1). A horizontally arranged support plate (44) is fixed at the upper end of the fixed shaft (41). An electrically driven push rod (43) arranged vertically is fixedly connected inside the support plate (44). The data detection mechanism (6) includes a sleeve (61). A sleeve (61) is fixedly penetrated through the watch case (51). A pressure sensor (64) is fixed inside the sleeve (61). An airbag (62) is fixed at the end of the pressure sensor (64). The airbag (62) is communicated with the pressure sensor (64). The outer surface of the airbag (62) contacts the end of the gear rack (55). The pressure sensor (64) is connected with a power cord (63) for connecting with a display screen. The cleaning mechanism (7) further includes a second motor (75). The second motor (75) is fixed at the lower end of the outer surface of the watch case (51). A reciprocating lead screw (76) is fixed on the output shaft of the second motor (75). A horizontally arranged support cross bar (74) is threadedly connected to the reciprocating lead screw (76). The support sleeve (71) is horizontally slidably connected to the support cross bar (74). The cleaning brush (72) is detachably connected to the end of the support sleeve (71). A spring (73) is fixed between the support sleeve (71) and the support cross bar (74). A vertically arranged baffle slide rail (77) is fixed at the lower end of the outer surface of the watch case (51). The end of the support cross bar (74) is vertically slidably connected to the baffle slide rail (77). The baffle slide rail (77) is located on the left side of the pressure sensor (64).

2. The clutch cover assembly pressure plate parallelism detection device according to claim 1, characterized in that, The dial indicator mechanism (5) includes a dial housing (51). The outer surface of the dial housing (51) is fixedly connected to the lower end of the telescopic rod of the electric push rod (43). A probe (53) is horizontally slidably connected to the dial housing (51) for contacting the outer surface of the pressure plate (3). A shaft seat (56) is fixedly installed inside the dial housing (51). A rack (55) with an arc-shaped structure is rotatably connected to the shaft seat (56). A connecting rod (58) is rotatably connected between one side of the rack (55) and the end of the probe (53). A gear (54) is rotatably connected to the central part inside the dial housing (51). The gear (54) is meshed with the outer surface of the right side of the rack (55). The axis of the gear (54) is fixedly provided with a pointer (52) arranged outside the dial housing (51). A shock-proof spring (57) is fixedly connected between the end of the probe (53) and the shaft seat (56).

3. The clutch cover assembly pressure plate parallelism detection device according to claim 1, characterized in that, The cleaning mechanism (7) further includes a mounting bracket (78). The cleaning brush (72) is fixedly connected to two mounting brackets (78) with an L-shaped structure. The mounting brackets (78) are slidably clamped on the outer surface of the end of the support sleeve (71). A mounting bolt (79) is threadedly connected between the mounting bracket (78) and the end of the support sleeve (71).

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