A device for measuring the thickness of teeth of a clutch back plate

Abstract

The utility model relates to a kind of clutch backplate's tooth thickness measuring device, including rack, backplate positioning mechanism, rotary drive mechanism and tooth thickness measuring mechanism, gear ring is equipped on the clutch backplate, workbench is equipped on the rack, the backplate positioning mechanism includes backplate bearing station, the backplate bearing station is rotatably arranged on the workbench, the backplate bearing station can be carried under the action of the rotary drive mechanism The clutch backplate rotating placed on it;The tooth thickness measuring mechanism includes the measuring sensor for measuring the gear ring thickness of the clutch backplate.The utility model is simple in structure, convenient to operate, realizes the automatic measurement of the tooth thickness of clutch backplate, without manual rotation, reduce labor intensity, not only improve the measurement efficiency of clutch backplate, can realize to carry out full detection to clutch backplate, guarantee the tooth thickness quality of clutch backplate, and also improve the accuracy of the measurement of clutch backplate.

Description

Technical Field

[0001] This utility model relates to a tooth thickness measuring device for a clutch backplate, belonging to the field of clutch backplate detection technology. Background Technology

[0002] The clutch backplate is a key component in the automotive clutch system. Its main function is to support and protect the clutch friction plates, ensuring proper contact and separation between them and the flywheel and pressure plate.

[0003] The clutch backplate has an overall ring-shaped structure, with one end face being a flat structure and the other end face having a ring platform structure. The flat end face is used to fit the clutch friction plate.

[0004] The clutch backplate has a ring of teeth. If the tooth thickness of these teeth is uneven, it will lead to differences in pressure resistance, resulting in uneven pressure between the clutch friction plates. This uneven pressure causes uneven wear on the clutch friction plates, leading to significant differences in clutch friction force. This not only affects the normal operation of the clutch but also shortens its service life. Therefore, after the clutch backplate is machined, the tooth thickness needs to be measured. Currently, this is done manually using a dial indicator. This requires workers to manually rotate the clutch backplate, which is labor-intensive and can lead to improper rotation affecting the measurement results. Furthermore, this measurement method is inefficient, as it cannot inspect the entire clutch backplate and can only perform random checks, making it difficult to guarantee the quality of the tooth thickness. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a device for measuring the tooth thickness of a clutch backplate.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A tooth thickness measuring device for a clutch back plate includes a frame, a back plate positioning mechanism, a rotation drive mechanism and a tooth thickness measuring mechanism arranged on the frame, wherein the clutch back plate is an annular structure, and a tooth ring is provided on the clutch back plate, and a plurality of teeth are provided on the tooth ring. The frame is provided with a worktable, and the back plate positioning mechanism includes a back plate support platform. The back plate support platform is used to support and position the clutch back plate. The back plate support platform is rotatably mounted on the worktable. The rotation drive mechanism is used to drive the back plate support platform to rotate. Under the action of the rotation drive mechanism, the back plate support platform can carry the clutch back plate placed on it to rotate. The tooth thickness measuring mechanism includes a measuring sensor for measuring the thickness of the gear ring of the clutch backplate.

[0007] The beneficial effects of this invention are as follows: The backplate positioning mechanism, rotation drive mechanism, and tooth thickness measuring mechanism on the frame enable automated measurement of the tooth thickness of the clutch backplate. During measurement, the clutch backplate is placed on the backplate positioning mechanism. The backplate support platform in the backplate positioning mechanism stably supports and positions the clutch backplate. The rotation drive mechanism drives the backplate support platform to rotate, thereby causing the clutch backplate to rotate. Under the action of the rotation drive mechanism, the clutch backplate rotates at least one revolution. The measuring sensor in the tooth thickness measuring mechanism measures the thickness of the tooth ring of the clutch backplate. The entire measurement process does not require manual rotation by workers, reducing labor intensity. Automated measurement not only improves the measurement efficiency of the clutch backplate, enabling full measurement of the clutch backplate instead of spot checks, ensuring the quality of the tooth thickness of the clutch backplate, but also improves the accuracy of the clutch backplate measurement, avoiding the problem of improper rotation affecting the measurement results.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the backplate support platform includes a support part and a positioning part. The clutch backplate is provided with a central hole. The positioning part is used to position the central hole. The planar structure of the clutch backplate can be placed on the support part. The positioning part and the support part cooperate to form an annular positioning shoulder for positioning the clutch backplate.

[0010] The beneficial effect of adopting the above-mentioned further solution is that it makes full use of the characteristics of the annular structure of the clutch back plate, uses the positioning part to position the center hole of the clutch back plate, and uses the support part to meet its bearing positioning position. The cooperation between the positioning part and the support part can achieve precise positioning of the clutch back plate, ensuring that the clutch back plate is stable in position during the measurement process and will not shake, thereby further improving the accuracy of the tooth thickness measurement of the clutch back plate and ensuring the reliability of the measurement results.

[0011] Furthermore, the positioning part is made of a non-metallic material.

[0012] The advantages of adopting the above-mentioned further solution are that the non-metallic positioning part will not have direct metal-to-metal contact with the hole wall of the clutch back plate, thereby effectively avoiding problems such as static electricity and scratches that may be caused by metal friction, and further protecting the surface quality of the hole wall of the clutch back plate. At the same time, the softer texture or certain elasticity can better position the center hole of the clutch back plate, reduce the wear of the positioning part on the clutch back plate, and achieve stable positioning of the clutch back plate; in addition, non-metallic materials usually have good wear resistance, which can extend the service life of the positioning part and reduce the cost and time consumption caused by frequent replacement of the positioning part.

[0013] Furthermore, the positioning part is made of polyurethane or rubber, and the positioning part is set on the support part by fasteners.

[0014] The advantages of adopting the above-mentioned further solutions are that polyurethane material has high strength, high elasticity, and good wear resistance, and can maintain stable performance during long-term use. Rubber material has good flexibility and shock absorption, which can better adapt to the shape of the center hole of the clutch back plate, providing more accurate and stable positioning; the positioning part is set on the support part by fasteners, which can be in the middle position without interfering with the positioning of the clutch back plate. The positioning part is easy to disassemble and replace; the positioning part is made of non-metallic material such as polyurethane or rubber, which can make full use of the characteristics of non-metallic materials to increase the friction between the hole wall of the clutch back plate and the positioning part, so that the clutch back plate can rotate synchronously with the back plate support platform, thereby ensuring the efficiency and accuracy of the tooth thickness measurement of the clutch back plate.

[0015] Furthermore, the measuring sensor includes a first sensor and a second sensor. The measuring probe of the first sensor can act on the upper end face of the gear ring of the clutch back plate, and the measuring probe of the second sensor can act on the lower end face of the gear ring of the clutch back plate.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the clutch backplate is placed on the backplate support platform, the measuring probe of the first sensor extends to act on the upper end face of the gear ring of the clutch backplate, and the measuring probe of the second sensor extends to act on the lower end face of the gear ring of the clutch backplate, so as to measure the upper and lower end faces of the gear ring of the clutch backplate. By using two sensors acting on the two end faces respectively, the thickness of the gear ring can be measured, and the data of the upper and lower end faces of the gear ring of the clutch backplate can be obtained, accurately capturing the specific position information of the upper and lower end faces of the gear ring, effectively improving the accuracy and reliability of the measurement.

[0017] Furthermore, the rotation drive mechanism includes a servo motor, which is mounted on the frame, and the output shaft of the servo motor is connected to the back plate support platform.

[0018] The beneficial effects of adopting the above-mentioned further solution are that the servo motor can precisely control the rotation angle and speed of the backplate support platform, achieving smooth rotational drive of the backplate support platform. This ensures that the backplate support platform rotates according to preset parameters, improving the accuracy and stability of the clutch backplate tooth thickness measurement. Simultaneously, the servo motor also simplifies the operation of the entire measuring device, facilitating automated control and thus improving the measurement efficiency of the clutch backplate.

[0019] Furthermore, the output shaft of the servo motor is connected to the bottom of the back plate support platform via a coupling.

[0020] The beneficial effects of adopting the above-mentioned further solution are that the coupling can effectively transmit the torque of the servo motor, while reducing the impact of errors between transmission components, thus ensuring the accuracy of the backplate bearing platform's rotation. The power output by the servo motor can act on the backplate bearing platform more stably and reliably, making the backplate bearing platform more stable during rotation, thereby improving the accuracy of the clutch backplate tooth thickness measurement and reducing measurement errors.

[0021] Furthermore, the workbench is provided with a mounting sleeve, and the back plate support platform is rotatably disposed within the mounting sleeve.

[0022] The beneficial effect of adopting the above-mentioned further solution is that the mounting sleeve is set on the worktable, and the worktable has through holes for connecting the rotation drive mechanism and the back plate support platform, thereby meeting the rotation drive requirements of the back plate support platform. The mounting sleeve provides stable support and rotation space for the back plate support platform, ensuring that the back plate support platform will not shake during rotation, thereby meeting the requirements of clutch back plate positioning stability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the main structure of Embodiment 1 of this utility model; Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure along the AA direction; Figure 4 This is a structural schematic diagram of the measurement state of angle one in Embodiment 1 of this utility model; Figure 5 This is a structural schematic diagram of the measurement state of angle two in Embodiment 1 of this utility model; Figure 6 This is a schematic diagram of the clutch backplate. Figure 7 This is a top view of the clutch backplate. Figure 8 for Figure 7 A schematic diagram of the cross-sectional structure along the BB direction; Figure 9 This is a schematic diagram of the structure of Embodiment 2 of this utility model; In the diagram, 1 is the frame; 2 is the worktable; 3 is the backplate support platform; 31 is the support part; 32 is the positioning part; 33 is the annular positioning shoulder; 4 is the mounting sleeve; 5 is the first sensor; 6 is the second sensor; 7 is the servo motor; 8 is the counter; 9 is the clutch backplate; 91 is the gear ring; 92 is the planar structure; 93 is the boss structure; and 94 is the center hole. Detailed Implementation

[0024] The principles and features of this utility model are described below with reference to examples. The examples are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0025] Example 1, as Figures 1-8 As shown, a tooth thickness measuring device for a clutch backplate includes a frame 1, a backplate positioning mechanism, a rotation drive mechanism, and a tooth thickness measuring mechanism mounted on the frame 1. The clutch backplate 9 has an annular structure and a toothed ring 91 with multiple teeth. The frame 1 is provided with a workbench 2. The back plate positioning mechanism includes a back plate support platform 3. The back plate support platform 3 is used to support and position the clutch back plate 9. The back plate support platform 3 is rotatably mounted on the workbench 2. The rotation drive mechanism is used to drive the back plate support platform 3 to rotate. Under the action of the rotation drive mechanism, the back plate support platform 3 can carry the clutch back plate 9 placed on it to rotate. The tooth thickness measuring mechanism includes a measuring sensor for measuring the thickness of the gear ring 91 of the clutch backplate 9.

[0026] The backplate support platform 3 includes a support part 31 and a positioning part 32. The clutch backplate 9 has a central hole 94. The positioning part 32 is used to position the central hole 94. The planar structure 92 of the clutch backplate 9 can be placed on the support part 31. The positioning part 32 and the support part 31 cooperate to form an annular positioning shoulder 33 for positioning the clutch backplate 9. By fully utilizing the annular structure of the clutch backplate 9, the positioning part 32 positions the central hole 94 of the clutch backplate 9, and the support part 31 satisfies its bearing and positioning position. The cooperation between the positioning part 32 and the support part 31 can achieve precise positioning of the clutch backplate 9, ensuring that the clutch backplate 9 is stable in position during the measurement process and will not wobble. This further improves the accuracy of the tooth thickness measurement of the clutch backplate 9 and ensures the reliability of the measurement results.

[0027] The positioning part 32 is made of a non-metallic material. The non-metallic material of the positioning part 32 prevents direct metal-to-metal contact with the hole wall of the clutch back plate 9, effectively avoiding problems such as static electricity and scratches that may occur due to metal friction, further protecting the surface quality of the hole wall of the clutch back plate 9. At the same time, its softer texture or certain elasticity allows for better positioning of the center hole 94 of the clutch back plate 9, reducing wear on the clutch back plate 9 caused by the positioning part 32, and achieving stable positioning of the clutch back plate 9. Furthermore, non-metallic materials typically have good wear resistance, extending the service life of the positioning part 32 and reducing the cost and time consumption caused by frequent replacement of the positioning part 32.

[0028] The positioning part 32 is made of polyurethane or rubber and is mounted on the support part 31 by fasteners. Polyurethane has high strength, high elasticity, and good wear resistance, maintaining stable performance during long-term use. Rubber has good flexibility and shock absorption, better adapting to the shape of the center hole 94 of the clutch back plate 9, providing more precise and stable positioning. The positioning part 32 is mounted on the support part 31 by fasteners, which can be positioned in the middle without interfering with the positioning of the clutch back plate 9. The positioning part 32 is easy to install and remove, and also convenient to replace. The non-metallic material of polyurethane or rubber used in the positioning part 32 fully utilizes the characteristics of non-metallic materials, increasing the friction between the hole wall of the clutch back plate 9 and the positioning part 32, thereby allowing the clutch back plate 9 to rotate synchronously with the back plate support platform 3, ensuring the efficiency and accuracy of the tooth thickness measurement of the clutch back plate 9. The positioning part 32 can be mounted on the support part 31 using fastening bolts.

[0029] The workbench 2 is provided with a mounting sleeve 4, and the back plate support platform 3 is rotatably disposed within the mounting sleeve 4. The mounting sleeve 4 is disposed on the workbench 2, which has a through hole for connecting the rotation drive mechanism and the back plate support platform 3, thereby meeting the rotation drive requirements of the back plate support platform 3. The mounting sleeve 4 provides stable support and rotation space for the back plate support platform 3, ensuring that the back plate support platform 3 will not shake during rotation, thereby meeting the positioning stability requirements of the clutch back plate 9.

[0030] The measuring sensors include a first sensor 5 and a second sensor 6. The measuring probe of the first sensor 5 can act on the upper end face of the gear ring 91 of the clutch back plate 9, and the measuring probe of the second sensor 6 can act on the lower end face of the gear ring 91 of the clutch back plate 9. The clutch back plate 9 is placed on the back plate support platform 3. The measuring probe of the first sensor 5 extends to act on the upper end face of the gear ring 91 of the clutch back plate 9, and the measuring probe of the second sensor 6 extends to act on the lower end face of the gear ring 91 of the clutch back plate 9. The upper and lower end faces of the gear ring 91 of the clutch back plate 9 are measured. By using two sensors acting on the two end faces respectively, the thickness of the gear ring 91 can be measured. Data on the upper and lower end faces of the gear ring 91 of the clutch back plate 9 can be obtained, accurately capturing the specific position information of the upper and lower end faces of the gear ring 91, effectively improving the accuracy and reliability of the measurement.

[0031] The measurement sensor can be a displacement sensor.

[0032] The rotation drive mechanism includes a servo motor 7, which is mounted on the frame 1. The output shaft of the servo motor 7 is connected to the backplate support platform 3. The servo motor 7 can precisely control the rotation angle and speed of the backplate support platform 3, achieving smooth rotation drive and ensuring that the backplate support platform 3 rotates according to preset parameters, thereby improving the accuracy and stability of the tooth thickness measurement of the clutch backplate 9. Simultaneously, the servo motor 7 also simplifies the operation of the entire measuring device, facilitating automated control and thus improving the measurement efficiency of the clutch backplate 9.

[0033] The output shaft of the servo motor 7 is connected to the bottom of the back plate support platform 3 via a coupling. The coupling can effectively transmit the torque of the servo motor 7, while reducing the impact of errors between transmission components, ensuring the accuracy of the rotation of the back plate support platform 3. The power output by the servo motor 7 can act on the back plate support platform 3 more stably and reliably, making the back plate support platform 3 more stable during rotation, thereby improving the accuracy of the tooth thickness measurement of the clutch back plate 9 and reducing measurement errors.

[0034] Example 2, as Figure 9 As shown, based on Embodiment 1, a counter 8 is also included on the frame 1. The counter 8 is used to record the number of teeth of the clutch backplate 9 to be tested. The number of teeth of the clutch backplate 9 is N. When each clutch backplate 9 to be tested is placed on the backplate support platform 3 to wait for measurement, the counter 8 is first reset to zero. The clutch backplate 9 is placed on the backplate support platform 3, and the clutch backplate 9 rotates under the action of the rotation drive mechanism. The counter 8 counts. When the counter 8 records a number of teeth equal to or greater than N+1, the control system receives the instruction from the counter 8 and controls the servo motor 7 to stop. The tooth thickness measurement of the clutch backplate 9 is completed, ensuring that the clutch backplate 9 rotates one revolution. This ensures that the measuring sensor is indeed measuring one revolution of the tooth ring 91 of the clutch backplate 9 to be tested, further ensuring the accuracy of the tooth thickness measurement of the clutch backplate 9. Of course, the data recorded by counter 8 should not be too large when it is greater than N+1, otherwise it will affect the tooth thickness measurement efficiency of clutch back plate 9. It can be further limited, such as not exceeding N+5, so as to meet the requirement of one revolution of clutch back plate 9, while not affecting the measurement efficiency of clutch back plate 9 too much. The rest of the structure is the same as in embodiment 1, and will not be described in detail here.

[0035] Before measuring the clutch backplate 9, the measuring probe of the measuring sensor can be calibrated using standard parts. During measurement, the clutch backplate 9 to be measured is placed on the backplate support platform 3. The positioning part 32 of the backplate support platform 3 can position the center hole 94 of the clutch backplate 9. The supporting part 31 of the backplate support platform 3 can support the planar structure 92 of the clutch backplate 9. The end face of the boss structure 93 of the clutch backplate 9 faces upward. When the device is activated, the measuring probe of the first sensor 5 extends and contacts the upper end face of the gear ring 91 of the clutch back plate 9, and the measuring probe of the second sensor 6 extends and contacts the lower end face of the gear ring 91 of the clutch back plate 9. The servo motor 7 is activated, the back plate support platform 3 rotates, thereby driving the clutch back plate 9 to rotate. The measuring sensors perform measurements. After the clutch back plate 9 rotates one revolution, the measuring sensors complete the detection and obtain the measured thickness value. The measured thickness value is compared with the set acceptable range of the thickness of the gear ring 91 of the clutch back plate 9. If it is within the set acceptable range, the tooth thickness of the clutch back plate 9 is acceptable, and the clutch back plate 9 can be placed in the acceptable area. For example, if the tooth thickness is 3.6mm, its acceptable range should be 3.6±0.05mm. If the measured thickness value is not within the acceptable range, the tooth thickness of the clutch back plate 9 is unacceptable, and the clutch back plate 9 should be removed and placed in the unacceptable area. The above measurement is repeated until all clutch back plates 9 are measured. The beneficial effects of this utility model are as follows: Through the backplate positioning mechanism, rotation drive mechanism and tooth thickness measuring mechanism on the frame 1, the tooth thickness of the clutch backplate 9 is automatically measured. The entire measurement process does not require manual rotation by workers, reducing labor intensity. The automated measurement not only improves the measurement efficiency of the clutch backplate 9, enabling full measurement of the clutch backplate 9 instead of spot checks, thus ensuring the tooth thickness quality of the clutch backplate 9, but also improves the accuracy of the measurement of the clutch backplate 9, avoiding the problem of improper rotation affecting the measurement results of the clutch backplate 9.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for measuring the tooth thickness of a clutch backplate, characterized in that, Includes a frame (1), a back plate positioning mechanism, a rotation drive mechanism and a tooth thickness measuring mechanism mounted on the frame (1), the clutch back plate (9) is an annular structure, the clutch back plate (9) is provided with a toothed ring (91) and the toothed ring (91) is provided with multiple teeth; The frame (1) is provided with a workbench (2), and the back plate positioning mechanism includes a back plate support platform (3). The back plate support platform (3) is used to support and position the clutch back plate (9). The back plate support platform (3) is rotatably mounted on the workbench (2). The rotation drive mechanism is used to drive the back plate support platform (3) to rotate. Under the action of the rotation drive mechanism, the back plate support platform (3) can carry the clutch back plate (9) placed on it to rotate. The tooth thickness measuring mechanism includes a measuring sensor for measuring the thickness of the gear ring (91) of the clutch backplate (9).

2. The tooth thickness measuring device for the clutch back plate according to claim 1, characterized in that, The backplate support platform (3) includes a support part (31) and a positioning part (32). The clutch backplate (9) is provided with a center hole (94). The positioning part (32) is used to position the center hole (94). The planar structure (92) of the clutch backplate (9) can be placed on the support part (31). The positioning part (32) and the support part (31) cooperate to form an annular positioning shoulder (33) for positioning the clutch backplate (9).

3. The tooth thickness measuring device for the clutch back plate according to claim 2, characterized in that, The positioning part (32) is made of non-metallic material.

4. The tooth thickness measuring device for the clutch back plate according to claim 3, characterized in that, The positioning part (32) is made of polyurethane or rubber and is mounted on the support part (31) by fasteners.

5. The tooth thickness measuring device for the clutch back plate according to claim 1, characterized in that, The measuring sensor includes a first sensor (5) and a second sensor (6). The measuring probe of the first sensor (5) can act on the upper end face of the gear ring (91) of the clutch back plate (9), and the measuring probe of the second sensor (6) can act on the lower end face of the gear ring (91) of the clutch back plate (9).

6. The tooth thickness measuring device for the clutch back plate according to any one of claims 1-5, characterized in that, The rotation drive mechanism includes a servo motor (7), which is mounted on the frame (1). The output shaft of the servo motor (7) is connected to the back plate support platform (3).

7. The tooth thickness measuring device for the clutch back plate according to claim 6, characterized in that, The output shaft of the servo motor (7) is connected to the bottom of the back plate support platform (3) via a coupling.

8. The tooth thickness measuring device for the clutch back plate according to any one of claims 1-5, characterized in that, The workbench (2) is provided with an installation sleeve (4), and the back plate support platform (3) is rotatably disposed inside the installation sleeve (4).

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