A diaphragm spring finger end flatness detection device

Abstract

The utility model relates to a kind of diaphragm spring finger end flatness detection devices, including detection cabinet, rotating mechanism, positioning mould, proximity sensor, horizontal moving screw module, vertical screw module, detection probe;The top of detection cabinet has support, horizontal moving screw module is installed on support, vertical screw module is installed on the horizontal moving slider of horizontal moving screw module, and detection probe is installed on the slider of vertical screw module;Rotating mechanism includes hollow rotating mechanism and driving motor, the output end of driving motor is connected with the input end of hollow rotating mechanism, the output end of hollow rotating mechanism is through the top wall of detection cabinet, and positioning mould is installed;The inner bottom wall of detection cabinet is equipped with support rod, the free end of support rod is through the center of positioning mould, and proximity sensor is installed;When diaphragm spring is detected using the present scheme, it can effectively avoid detection probe to knock into another finger end part of diaphragm spring, so as to damage detection probe.

Description

Technical Field

[0001] This utility model relates to the technical field of diaphragm spring testing equipment, and in particular to a device for testing the flatness of diaphragm spring fingertips. Background Technology

[0002] As a key component of the clutch, the flatness of the diaphragm spring finger tip reflects the degree of lateral deformation of the spring in the direction perpendicular to the working axis. This parameter is an important indicator for measuring the manufacturing precision, working characteristics and product consistency of the diaphragm spring.

[0003] Existing devices for detecting the flatness of diaphragm spring fingertips, such as patent number CN207019628U, use a lower rotary positioning mechanism to position the diaphragm spring, then bring the digital display dial indicator of the upper detection mechanism into contact with the surface to be tested of the diaphragm spring, and then make the rotary positioning mechanism drive the diaphragm spring to rotate, thereby measuring the flatness of the surface to be tested of the diaphragm spring.

[0004] However, there are gaps between the finger tips of the diaphragm spring. The detection surfaces of the digital dial indicator and the finger tips of the diaphragm spring contact and slide relative to each other. When the finger tips of the different separating fingers of the diaphragm spring are uneven, when the probe moves from one finger tip to another, the digital dial indicator probe will extend too far through the gap between the two adjacent finger tips and move to the other finger tip. The digital dial indicator probe will collide with the other finger tip, which can easily lead to probe damage. Utility Model Content

[0005] The purpose of this invention is to provide a diaphragm spring fingertip flatness detection device to solve the above-mentioned problems existing in the prior art.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A diaphragm spring fingertip flatness detection device includes a detection cabinet, a rotating mechanism, a positioning mold, a proximity sensor, a transverse lead screw module, a vertical lead screw module, and a detection probe;

[0008] The top of the testing cabinet has a bracket. The horizontal lead screw module is mounted on the bracket, the vertical lead screw module is mounted on the horizontal slider of the horizontal lead screw module, and the testing probe is mounted on the slider of the vertical lead screw module.

[0009] The rotating mechanism includes a hollow rotating mechanism (a type of reducer with a hollow center, the output end being a rotatable circular mounting block with mounting holes arranged around the upper circumference; this mechanism is a standard part) and a drive motor. The output end of the drive motor is connected to the input end of the hollow rotating mechanism. The output end of the hollow rotating mechanism passes through the top wall of the testing cabinet and is fitted with a positioning mold. A support rod is provided on the inner bottom wall of the testing cabinet, the free end of which passes through the center of the positioning mold and is fitted with a proximity sensor. The proximity sensor corresponds to the detection probe. The mechanism also includes a controller, which is mounted on the top wall of the testing cabinet. The rotating mechanism, proximity sensor, transverse lead screw module, vertical lead screw module, detection probe, and digital display driver are electrically connected to the controller.

[0010] The beneficial effects of this utility model are: when testing a diaphragm spring, the diaphragm spring is placed on a positioning mold that is compatible with the diaphragm spring for positioning, and the position of the vertical screw module is adjusted by the horizontal screw module so that the position of the testing probe corresponds to the finger tip of the diaphragm spring.

[0011] The detection device is activated. The controller controls the rotating mechanism to rotate the diaphragm spring. When the fingertip of the diaphragm spring aligns with the position of the proximity sensor, the proximity sensor sends a signal to the controller to stop the drive motor. At this point, the fingertip of the diaphragm spring is aligned with the detection probe. The controller then controls the vertical lead screw module to rotate, moving the detection probe downwards. When the detection probe contacts the fingertip of the diaphragm spring, it sends a signal to the controller to stop the vertical lead screw module. The controller displays the time taken for the vertical lead screw module to stop rotating from start to stop. The vertical lead screw module then returns to its original position, completing the detection of one fingertip. The above steps are repeated, and the flatness can be assessed by comparing the time taken for each fingertip to stop rotating from start to stop with the corresponding vertical lead screw module.

[0012] When using this method to test diaphragm springs, the testing probe only makes contact with the diaphragm spring without sliding relative to it. This effectively prevents the testing probe from bumping into the other end of the diaphragm spring and damaging the testing probe.

[0013] Based on the above technical solution, the present invention can be further improved as follows.

[0014] Furthermore, the slider is equipped with an adjustment rod, and the detection probe is located on the adjustment rod.

[0015] Furthermore, the detection probe is an electric shock switch.

[0016] Furthermore, the support rod is a telescopic rod, and a mounting block is provided at the free end of the support rod. The proximity sensor is threadedly connected to the mounting block.

[0017] Furthermore, it also includes a lifting mechanism, which includes an electric push rod, a limit rod, and a support plate; the base of the electric push rod is installed at the bottom of the testing cabinet, the pushing end of the electric push rod is connected to the support plate, and the bottom of the testing cabinet is provided with limit rods on both sides of the electric push rod, and the support plate is provided with limit through holes to accommodate the limit rods; the rotating mechanism and the support rod are correspondingly installed on the support plate.

[0018] Furthermore, the positioning mold is made of non-metallic material. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of another embodiment of the present invention.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Inspection cabinet; 11. Bracket; 12. Support rod; 121. Mounting block; 2. Rotating mechanism; 21. Hollow rotating mechanism; 22. Drive motor; 3. Positioning mold; 4. Proximity sensor; 5. Lateral lead screw module; 51. Lateral slider; 6. Vertical lead screw module; 61. Slider; 62. Adjusting rod; 7. Inspection probe; 8. Controller; 9. Lifting mechanism; 91. Electric push rod; 911. Base; 92. Limiting rod; 93. Bearing plate; 931. Limiting through hole. Detailed Implementation

[0023] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0024] Example 1

[0025] like Figure 1 and Figure 2 As shown, a diaphragm spring fingertip flatness detection device includes a detection cabinet 1, a rotating mechanism 2, a positioning mold 3, a proximity sensor 4, a transverse lead screw module 5, a vertical lead screw module 6, and a detection probe 7.

[0026] The top of the testing cabinet 1 has a bracket 11, the transverse lead screw module 5 is mounted on the bracket 11, the vertical lead screw module 6 is mounted on the transverse slider 51 of the transverse lead screw module 5, and the testing probe 7 is mounted on the slider 61 of the vertical lead screw module 6.

[0027] The rotating mechanism 2 includes a hollow rotating mechanism 21 (a type of reducer with a hollow center, the output end being a rotatable circular mounting block with mounting holes arranged around the upper circumference; this mechanism is a standard part) and a drive motor 22. The output end of the drive motor 22 is connected to the input end of the hollow rotating mechanism 21. The rotating end of the hollow rotating mechanism 21 penetrates the top wall of the testing cabinet 1 and is fitted with a positioning mold 3. The inner bottom wall of the testing cabinet 1 is provided with a support rod 12, the free end of which penetrates the middle of the positioning mold 3 and is fitted with a proximity sensor 4. The proximity sensor 4 corresponds to the detection probe 7. The mechanism also includes a controller 8, which is mounted on the top wall of the testing cabinet 1. The rotating mechanism 2, proximity sensor 4, transverse lead screw module 5, vertical lead screw module 6, detection probe 7, and digital display driver are electrically connected to the controller 8.

[0028] When testing a diaphragm spring, the diaphragm spring is placed on a positioning mold 3 that is compatible with the diaphragm spring for positioning. The position of the vertical screw module 6 is adjusted by the horizontal screw module 5 so that the position of the test probe 7 corresponds to the finger tip of the diaphragm spring.

[0029] The detection device is started. The controller 8 controls the rotating mechanism 2 to rotate the diaphragm spring. When the fingertip of the diaphragm spring corresponds to the position of the proximity sensor 4, the proximity sensor 4 sends a signal to the controller 8 to stop the drive motor 22. At this time, the fingertip of the diaphragm spring corresponds to the detection probe 7. The controller 8 controls the vertical lead screw module 6 to rotate, driving the detection probe 7 to move downward. When the detection probe 7 contacts the fingertip of the diaphragm spring, the detection probe 7 sends a signal to the controller 8 to stop the vertical lead screw module 6. The controller displays the time from start to stop of the vertical lead screw module 6. The vertical lead screw module 6 rotates back to the origin, completing the detection of one fingertip. The above steps are repeated. By comparing the time from start to stop of the vertical lead screw module 6 for each fingertip, the flatness can be evaluated.

[0030] When using this method to test the diaphragm spring, the test probe 7 only makes contact with the diaphragm spring without sliding relative to it. This effectively prevents the test probe 7 from going too far to the other end of the diaphragm spring and causing a collision, which could damage the test probe 7.

[0031] It should be noted that since the vertical lead screw module 6 operates at the same speed each time it is tested, the operating time can be indirectly used as the displacement to evaluate the flatness of the diaphragm spring.

[0032] Example 2

[0033] This embodiment is a further improvement on embodiment 1, as detailed below:

[0034] The slider 61 is equipped with an adjusting rod 62 and the detection probe 7 is mounted on the adjusting rod 62.

[0035] Before testing different types of diaphragm springs, the position of the detection probe 7 in the vertical direction can be adjusted by adjusting rod 62 according to actual needs, thereby shortening the detection distance of vertical movement of slider 61, further shortening the detection time, and improving detection efficiency.

[0036] Example 3

[0037] This embodiment is a further improvement on embodiment 2, as detailed below:

[0038] The detection probe 7 is an electric contact switch. When the end of the detection probe 7 contacts the diaphragm spring, the electric contact switch closes, thereby transmitting a signal to the controller 8, which can better adapt to the device.

[0039] Example 4

[0040] This embodiment is a further improvement on embodiment 1, as detailed below:

[0041] The support rod 12 is a telescopic rod, and the free end of the support rod 12 is provided with a mounting block 121. The proximity sensor 4 is threadedly connected to the mounting block 121.

[0042] For different diaphragm springs, the vertical height of the finger tip from the base is different; at the same time, the size of the hole through which the rotation shaft of the finger tip passes is also different. The support rod 12 is a telescopic rod that can adjust the position of the proximity sensor 4 in the vertical direction. The proximity sensor 4 is threadedly connected to the mounting block 121. The housing is adjusted to adjust the horizontal position of the proximity sensor 4 by screwing, thereby realizing the detection of different models of diaphragm springs.

[0043] Example 5

[0044] This embodiment is a further improvement on embodiment 1, as detailed below:

[0045] It also includes a lifting mechanism 9, which includes an electric push rod 91, a limit rod 92, and a support plate 93. The base 911 of the electric push rod 91 is installed at the bottom of the testing cabinet 1. The pushing end of the electric push rod 91 is connected to the support plate 93. The bottom of the testing cabinet 1 is provided with limit rods 92 on both sides of the electric push rod 91. The support plate 93 is adapted to the limit rods 92 and is provided with limit through holes 931. The rotating mechanism 2 and the support rod 12 are correspondingly installed on the support plate 93.

[0046] When it is necessary to replace different models of positioning mold 3, the horizontal height between the positioning mold 3 and the top surface of the inspection cabinet 1 can be adjusted by the lifting mechanism 9, so as to ensure that the diaphragm spring does not contact the inspection cabinet 1 when rotating, avoid affecting the inspection results, and further improve the stability of the inspection process.

[0047] Example 6

[0048] This embodiment is a further improvement on embodiment 1, as detailed below:

[0049] The positioning mold 3 is made of non-metallic material; the non-metallic material of the positioning mold 3 can effectively reduce the interference encountered by the proximity sensor 4 during detection, and further improve the accuracy of detection.

[0050] 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 detecting the flatness of diaphragm spring finger tips, characterized in that, Includes a testing cabinet (1), a rotating mechanism (2), a positioning mold (3), a proximity sensor (4), a transverse lead screw module (5), a vertical lead screw module (6), and a testing probe (7); The top of the testing cabinet (1) is provided with a bracket (11), the transverse lead screw module (5) is installed on the bracket (11), the vertical lead screw module (6) is installed on the transverse slider (51) of the transverse lead screw module (5), and the testing probe (7) is installed on the slider (61) of the vertical lead screw module (6). The rotating mechanism (2) includes a hollow rotating mechanism (21) and a drive motor (22). The output end of the drive motor (22) is connected to the input end of the hollow rotating mechanism (21). The rotating end of the hollow rotating mechanism (21) passes through the top wall of the inspection cabinet (1) and is equipped with the positioning mold (3). The inner bottom wall of the inspection cabinet (1) is provided with a support rod (12). The free end of the support rod (12) passes through the middle of the positioning mold (3) and is equipped with the proximity sensor (4). The proximity sensor (4) corresponds to the detection probe (7). The system also includes a controller (8). The controller (8) is installed on the top wall of the inspection cabinet (1). The rotating mechanism (2), proximity sensor (4), transverse lead screw module (5), vertical lead screw module (6), detection probe (7), and digital display driver are electrically connected to the controller (8).

2. The diaphragm spring fingertip flatness detection device according to claim 1, characterized in that, The slider (61) is provided with an adjusting rod (62), and the detection probe (7) is provided on the adjusting rod (62).

3. The diaphragm spring fingertip flatness detection device according to claim 2, characterized in that, The detection probe (7) is an electric contact switch.

4. The diaphragm spring fingertip flatness detection device according to claim 1, characterized in that, The support rod (12) is a telescopic rod, and the free end of the support rod (12) is provided with a mounting block (121). The proximity sensor (4) is threadedly connected to the mounting block (121).

5. The diaphragm spring fingertip flatness detection device according to claim 1, characterized in that, It also includes a lifting mechanism (9), which includes an electric push rod (91), a limiting rod (92), and a support plate (93); the base (911) of the electric push rod (91) is installed at the bottom of the testing cabinet (1), the pushing end of the electric push rod (91) is connected to the support plate (93), the bottom of the testing cabinet (1) is provided with limiting rods (92) on both sides of the electric push rod (91), and the support plate (93) is adapted to the limiting rods (92) and is provided with limiting through holes (931); the rotating mechanism (2) and the support rod (12) are respectively installed on the support plate (93).

6. The diaphragm spring fingertip flatness detection device according to claim 1, characterized in that, The positioning mold (3) is made of non-metallic material.

Images