Contact type end diameter jump detection equipment

Abstract

The utility model provides contact-type end radial runout detection equipment. The contact-type end radial runout detection equipment comprises a detection assembly, a displacement mechanism, a detection platform assembly and a support frame, the detection assembly comprises a detection roller and a displacement sensor, and the detection roller is in contact with the detected surface of the workpiece; the displacement sensor is used for detecting the displacement values of the detection roller in the vertical direction and the horizontal direction along with the change of the numerical value of the detected surface; the displacement mechanism is used for driving the detection assembly to move in the vertical direction and the horizontal direction relative to the detected surface of the workpiece. The detection platform assembly comprises a detection platform and a mounting chuck, and the mounting chuck is rotatably arranged on the detection platform and used for driving a detected workpiece to rotate around the center line of the workpiece. Contact type detection of the detection roller and the detection surface of the rim is adopted, the value jump of the detection surface of the rim is acquired through the analog quantity of the displacement sensor, the end radial jump value of the rim flange is obtained through analysis, and the accuracy of equipment detection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel rim detection, in particular to contact type end diameter runout detection equipment. Background Art

[0002] The end runout detection equipment is a special equipment for detecting the end and radial runout of the wheel rim. When there is oil, water and other substances on the rim surface, the laser detection of the traditional non-contact detection and measurement equipment is easily affected by the reflection and refraction of light, making the detection structure inaccurate, resulting in low detection accuracy and unstable detection results. In addition, the equipment is complicated to assemble, not easy to adjust, and has high maintenance costs. Traditional contact end runout detection, such as contact meter measurement, has human reading errors and unstable detection problems. Utility Model Content

[0003] The utility model aims to provide a contact-type end diameter jump detection device to solve at least one or more technical problems existing in the prior art.

[0004] In order to solve the above technical problems, the contact end diameter jump detection device provided by the utility model includes: a detection component, a displacement mechanism, a detection platform component and a support frame;

[0005] The detection assembly includes a detection roller and a displacement sensor, wherein the detection roller contacts the detected surface of the workpiece; the displacement sensor is used to detect the displacement values ​​of the detection roller in the vertical direction and the horizontal direction generated by the value change of the detected surface;

[0006] The displacement mechanism is arranged on the support frame and is used to drive the detection component to move in the vertical direction and the horizontal direction relative to the detected surface of the workpiece;

[0007] The detection platform assembly comprises a detection platform and a mounting chuck. The mounting chuck is rotatably arranged on the detection platform and is used for mounting and clamping the workpiece to be detected and driving the workpiece to be detected to rotate around the center line of the workpiece.

[0008] Furthermore, the detection roller is fixedly arranged at one end of the roller mounting plate;

[0009] The roller mounting plate can be arranged on the fine-tuning plate so as to be movable leftward and rightward in the horizontal direction;

[0010] A first guide assembly is horizontally arranged between the roller mounting plate and the fine-tuning plate, and is used for guiding the roller mounting plate to move horizontally left and right relative to the fine-tuning plate;

[0011] A displacement sensor is fixedly arranged horizontally at one end of the fine-tuning plate away from the detection roller, for detecting the horizontal displacement of the roller mounting plate.

[0012] Specifically, the roller mounting plate and the detection roller move horizontally left and right according to the change of the radial value of the rim circumference, and the horizontal displacement sensor detects the displacement of the roller mounting plate, and then the radial displacement of the rim circumference contacted by the detection roller is obtained. The analog quantity is used to collect the numerical jump of the rim during rotation, and the maximum value is subtracted from the minimum value to obtain the numerical value through analysis, and then the radial runout value of the rim circumference is obtained.

[0013] Further, the displacement mechanism includes a vertical displacement plate and a vertical displacement telescopic mechanism;

[0014] The vertical displacement plate is arranged above the fine-tuning plate at intervals, and elastic members are connected to the vertical displacement plate and the fine-tuning plate on the left and right sides in the horizontal direction;

[0015] A displacement sensor is vertically and fixedly arranged on the vertical displacement plate to detect the displacement of the fine-tuning plate in the vertical direction.

[0016] Further, the vertical displacement plate is arranged on the first horizontal displacement plate so as to be movable up and down in the vertical direction;

[0017] A second guide assembly is vertically arranged between the vertical displacement plate and the first horizontal displacement plate, and is used for guiding the vertical displacement plate to move up and down relative to the first horizontal displacement plate in the vertical direction;

[0018] The telescopic end of the vertical displacement telescopic mechanism is fixedly connected to the vertical displacement plate, and is used to drive the vertical displacement plate to move up and down in the vertical direction;

[0019] The fixed end of the vertical displacement telescopic mechanism is fixedly connected to the first horizontal displacement plate.

[0020] Specifically, the displacement of the fine-tuning plate in the vertical direction detected by the vertically arranged displacement sensor is used to obtain the displacement of the detection roller in the vertical direction, and the numerical jump during the rotation of the rim is collected by analog quantity, and the maximum value is subtracted from the minimum value to obtain the numerical value, and then the jump value of the rim circumference end face is obtained. The elastic member arranged between the fine-tuning plate and the vertical displacement plate can realize the displacement fine-tuning of the fine-tuning plate in the vertical direction caused by the jump of the rim circumference end face while the fine-tuning plate moves up and down with the vertical displacement plate, thereby improving the accuracy of displacement detection of the vertical displacement sensor.

[0021] Preferably, the detection assembly, the vertical displacement telescopic mechanism and the vertical displacement plate are vertically symmetrically arranged in two groups at intervals, and are respectively used for detecting the displacement of the upper and lower wheel rim surfaces of the rim circumference.

[0022] The vertical displacement telescopic mechanism is extended in an initial state, so that the upper and lower vertical displacement plates and the detection assembly are located away from the measured surface of the rim.

[0023] Furthermore, it also includes a horizontal displacement telescopic mechanism, the telescopic end of which is fixedly connected to the first horizontal displacement plate, and is used to drive the first horizontal displacement plate to move left and right in the horizontal direction;

[0024] The fixed end of the horizontal displacement telescopic mechanism is fixedly connected to the second horizontal displacement plate;

[0025] The first horizontal displacement plate is movably disposed on the second horizontal displacement plate along a horizontal direction.

[0026] A third guide assembly is horizontally arranged between the first horizontal displacement plate and the second horizontal displacement plate, and is used for guiding the first horizontal displacement plate to move horizontally left and right relative to the second horizontal displacement plate.

[0027] Furthermore, it also includes a hand wheel and a horizontal displacement transmission mechanism, wherein the hand wheel is used to drive the horizontal displacement transmission mechanism to move;

[0028] The horizontal displacement transmission mechanism is used to drive the second horizontal displacement plate to move left and right in the horizontal direction;

[0029] The second horizontal displacement plate is movably arranged on the support frame in the horizontal direction; a fourth guide assembly is horizontally arranged between the second horizontal displacement plate and the support frame, and is used for guiding the second horizontal displacement plate to move horizontally in the left and right direction relative to the support frame;

[0030] The hand wheel and the horizontal displacement transmission mechanism are fixedly arranged on the support frame.

[0031] Wherein, the displacement transmission mechanism is a ball screw transmission, a belt transmission or a gear rack transmission.

[0032] Furthermore, the detection platform assembly also includes a detection platform base and a drive motor, wherein the drive motor is fixedly disposed on the detection platform base and is used to drive the mounting chuck to drive the wheel rim to rotate around a vertical axis.

[0033] Furthermore, the detection platform is fixedly arranged above the detection platform base.

[0034] In addition, the first guide assembly, the second guide assembly, the third guide assembly and the fourth guide assembly are all linear guide assemblies with double sliders;

[0035] The linear guide rail with double sliders makes the movement and sliding of the fine-tuning plate, the vertical displacement plate, the first horizontal displacement plate and the second horizontal displacement plate smoother, thereby improving the accuracy of detecting the displacement of the roller and the accuracy of numerical detection.

[0036] The vertical displacement telescopic mechanism and the horizontal displacement telescopic mechanism are telescopic cylinders or telescopic oil cylinders.

[0037] By adopting the above technical solution, the utility model has the following beneficial effects:

[0038] The contact-type end diameter jump detection device provided by the utility model has the following advantages:

[0039] 1. The detection roller is used to contact the detection surface of the rim, and the displacement value of the detected surface of the rim is analyzed through the numerical jump of the displacement sensor analog quantity to obtain the end diameter jump value of the rim flange. This solves the problem of inaccurate detection data caused by the influence of oil stains and water on the detected surface of the rim in non-contact detection, and also solves the problem of human reading errors in traditional contact meter measurement, thus improving the accuracy of equipment detection.

[0040] 2. The use of double-slider linear guides makes the vertical and horizontal displacement of the detection roller more stable and accurate, further improving the stability and accuracy of equipment detection.

[0041] 3. The equipment has a simple structure, is easy to adjust and has low maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 A front view of a contact-type end diameter jump detection device provided by an embodiment of the utility model;

[0044] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0045] Figure 3 A top view of a contact-type end diameter jump detection device provided in an embodiment of the utility model;

[0046] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0047] Figure 5A three-dimensional diagram of a contact-type end diameter jump detection device provided in an embodiment of the utility model;

[0048] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0049] Figure 7 A three-dimensional diagram from another perspective of the contact-type end diameter runout detection device provided by an embodiment of the utility model;

[0050] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0051] Reference numerals:

[0052] 100-detection component; 101-detection roller; 102-displacement sensor; 103-roller mounting plate; 104-fine-tuning plate; 105-first linear guide assembly; 106-connecting spring; 200-displacement mechanism; 201-vertical displacement plate; 202-vertical displacement telescopic cylinder; 203-first horizontal displacement plate; 204-second linear guide assembly; 205-horizontal displacement telescopic cylinder; 206-second horizontal displacement plate; 207-third linear guide assembly; 208-handwheel; 209-ball screw; 210-fourth linear guide assembly; 300-detection platform assembly; 301-detection platform; 302-pneumatic three-jaw chuck; 303-detection platform base; 304-drive motor; 400-support frame; 500-rim. DETAILED DESCRIPTION

[0053] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0054] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] The present invention will be further explained below in conjunction with specific implementation methods.

[0057] like Figure 1-2 As shown, the contact end diameter jump detection device provided in this embodiment includes: a detection component 100, a displacement mechanism 200, a detection platform component 300 and a support frame 400;

[0058] The detection assembly 100 includes a detection roller 101 and a displacement sensor 102. The detection roller 101 is in contact with the detected surface of the workpiece; the displacement sensor 102 is used to detect the displacement values ​​of the detection roller 101 in the vertical direction and the horizontal direction generated by the value change of the detected surface;

[0059] The displacement mechanism 200 is disposed on the support frame 400 and is used to drive the detection assembly 100 to move in the vertical direction and the horizontal direction relative to the detected surface of the workpiece;

[0060] The detection platform assembly 300 includes a detection platform 301 and a mounting chuck. The mounting chuck is rotatably disposed on the detection platform 301 and is used for mounting and clamping the workpiece to be detected and driving the workpiece to be detected to rotate around the center line of the workpiece.

[0061] like Figure 2-4 As shown, the detection roller 101 is fixedly arranged at one end of the roller mounting plate 103;

[0062] The roller mounting plate 103 is disposed on the fine-tuning plate 104 so as to be movable leftward and rightward in the horizontal direction;

[0063] A first linear guide assembly 105 is horizontally arranged between the roller mounting plate 103 and the fine-tuning plate 104, and is used to guide the roller mounting plate 103 to move horizontally left and right relative to the fine-tuning plate 104;

[0064] A displacement sensor 102 is horizontally fixedly disposed at one end of the fine-tuning plate 104 away from the detection roller 101 , for detecting the horizontal displacement of the roller mounting plate 103 .

[0065] Specifically, the roller mounting plate 103 and the detection roller 101 move horizontally left and right according to the change of the radial value of the circumferential edge of the rim, and the horizontal displacement sensor 102 detects the displacement of the roller mounting plate 103, and then obtains the radial displacement of the circumferential edge of the rim 500 contacted by the detection roller 101. The numerical jump of the rim 500 during the rotation process is collected by analog quantity, and the maximum value is subtracted from the minimum value to obtain the numerical value through analysis, and then the radial jump value of the circumferential edge of the rim 500 is obtained.

[0066] The displacement mechanism 200 includes a vertical displacement plate 201 and a vertical displacement telescopic cylinder 202;

[0067] The vertical displacement plate 201 is disposed above the fine-tuning plate 104 at intervals, and elastic members are connected to the vertical displacement plate 201 and the fine-tuning plate 104 on the left and right sides in the horizontal direction;

[0068] A displacement sensor 102 is vertically and fixedly arranged on the vertical displacement plate 201 for detecting the vertical displacement of the fine-tuning plate 104 .

[0069] The vertical displacement plate 201 is disposed on the first horizontal displacement plate 203 so as to be movable up and down in the vertical direction;

[0070] A second linear guide assembly 204 is vertically arranged between the vertical displacement plate 201 and the first horizontal displacement plate 203, and is used to guide the vertical displacement plate 201 to move up and down in the vertical direction relative to the first horizontal displacement plate 203;

[0071] The telescopic end of the vertical displacement telescopic cylinder 202 is fixedly connected to the vertical displacement plate 201, and is used to drive the vertical displacement plate 201 to move up and down in the vertical direction;

[0072] The fixed end of the vertical displacement telescopic cylinder 202 is fixedly connected to the first horizontal displacement plate 203 .

[0073] In this embodiment, the elastic member is a connecting spring 106 .

[0074] Specifically, according to the displacement of the fine-tuning plate 104 in the vertical direction detected by the vertically arranged displacement sensor 102, the displacement of the detection roller 101 in the vertical direction is obtained, and the numerical value jump during the rotation of the rim 500 is collected by analog quantity, and the maximum value and the minimum value are subtracted to obtain the numerical value, and then the jump value of the circumferential rim end face of the rim 500 is obtained. The connecting spring 106 arranged between the fine-tuning plate 104 and the vertical displacement plate 201 can realize the displacement fine-tuning of the fine-tuning plate 104 in the vertical direction caused by the jump of the circumferential rim end face of the rim 500 while the fine-tuning plate 104 moves up and down with the vertical displacement plate 201, thereby improving the accuracy of displacement detection by the vertical displacement sensor 102.

[0075] Preferably, the detection assembly 100, the vertical displacement telescopic cylinder 202 and the vertical displacement plate 201 are vertically symmetrically arranged in two groups at intervals, and are respectively used for detecting the displacement of the upper and lower wheel edge surfaces of the rim 500.

[0076] The vertical displacement telescopic cylinder 202 is extended in an initial state, so that the upper and lower vertical displacement plates 201 and the detection assembly 100 are located away from the detected surface of the rim 500.

[0077] In addition, if Figure 5-6 As shown, the displacement mechanism 200 also includes a horizontal displacement telescopic cylinder 205, the telescopic end of which is fixedly connected to the first horizontal displacement plate 203, and is used to drive the first horizontal displacement plate 203 to move left and right in the horizontal direction;

[0078] The fixed end of the horizontal displacement telescopic cylinder 205 is fixedly connected to the second horizontal displacement plate 206;

[0079] The first horizontal displacement plate 203 is movably disposed on the second horizontal displacement plate 206 along the horizontal direction.

[0080] A third linear guide assembly 207 is horizontally disposed between the first horizontal displacement plate 203 and the second horizontal displacement plate 206 , and is used to guide the first horizontal displacement plate 203 to move horizontally left and right relative to the second horizontal displacement plate 206 .

[0081] like Figure 7-8 As shown, it also includes a hand wheel 208 and a horizontal displacement transmission mechanism, and the hand wheel 208 is used to drive the horizontal displacement transmission mechanism to move;

[0082] The horizontal displacement transmission mechanism is used to drive the second horizontal displacement plate 206 to move left and right along the horizontal direction;

[0083] The second horizontal displacement plate 206 is movably disposed on the support frame 400 in the horizontal direction; a fourth linear guide assembly 210 is horizontally disposed between the second horizontal displacement plate 206 and the support frame 400, for guiding the second horizontal displacement plate 206 to move horizontally in the horizontal direction relative to the support frame 400;

[0084] The hand wheel 208 and the horizontal displacement transmission mechanism are fixedly disposed on the support frame 400 .

[0085] The displacement transmission mechanism is a ball screw 209 transmission, a belt transmission or a gear rack transmission.

[0086] In this embodiment, the displacement transmission mechanism is a ball screw 209 .

[0087] The hand wheel 208 drives the ball screw 209 to drive the second horizontal displacement plate 206 to move left and right in the horizontal direction, so that the detection component 100 can achieve initial position adjustment according to rims of different specifications.

[0088] The detection platform assembly 300 further includes a detection platform base 303 and a drive motor. The drive motor is fixedly disposed on the detection platform base 303 and is used to drive the mounting chuck to drive the rim 500 to rotate around a vertical axis.

[0089] In this embodiment, the mounting chuck is a pneumatic three-jaw chuck 302 .

[0090] Furthermore, the detection platform 301 is fixedly disposed above the detection platform base 303 .

[0091] In addition, the first linear guide assembly 105, the second linear guide assembly 204, the third linear guide assembly 207 and the fourth linear guide assembly 210 are all linear guide assemblies with double sliders;

[0092] The linear guide rail with double sliders makes the movement and sliding of the fine-tuning plate 104, the vertical displacement plate 201, the first horizontal displacement plate 203 and the second horizontal displacement plate 206 more stable, thereby improving the accuracy of the displacement of the detection roller 101 and the accuracy of the numerical detection.

[0093] The specific detection process is as follows:

[0094] The hand wheel 208 is turned to adjust the position of the detection assembly 100 to an appropriate position according to the diameter of the rim 500. After the rim 500 is placed on the pneumatic three-jaw chuck 302 and clamped, the pneumatic three-jaw chuck 302 rotates to drive the rim 500 to rotate at a certain speed. The horizontal displacement telescopic cylinder 205 moves out, and the detection roller 101 approaches the detection rim 500 in the horizontal direction. The upper and lower vertical displacement telescopic cylinders 202 move at the same time, and the cylinder rod is retracted. The detection roller 101 is driven to move upward and downward respectively through the connecting spring 106, and the detection roller 101 approaches the rim 500. The roller mounting plate 103 and the vertical displacement plate 201 move plate are separated by a certain distance, so that the roller mounting plate 103 can be fine-tuned in the up-down direction. The displacement sensor 102 arranged vertically detects the value, and the data is transmitted to obtain the result of the end face runout of the rim 500. In the horizontal direction, the radial contact between the roller 101 and the rim 500 is detected, and the radial runout of the rim 500 is obtained by the relative position change between the roller mounting plate 103 and the fine-tuning plate 104 and the displacement sensor 102 arranged horizontally. After the detection is completed, the vertical displacement telescopic cylinder 202 moves out and separates from the rim 500 in the vertical direction, and then the horizontal displacement telescopic cylinder 205 is retracted and separates from the rim 500 in the horizontal direction. The rim 500 rotation drive motor 305 stops, and the pneumatic three-jaw chuck 302 is opened to remove the rim 500. The rim 500 detection is completed, and the next rim 500 detection is carried out.

[0095] The contact-type end diameter jump detection device provided by the utility model has the following advantages:

[0096] 1. The detection roller is used to contact the detection surface of the rim, and the displacement value of the detected surface of the rim is analyzed through the numerical jump of the displacement sensor analog quantity to obtain the end diameter jump value of the rim flange. This solves the problem of inaccurate detection data caused by the influence of oil stains and water on the detected surface of the rim in non-contact detection, and also solves the problem of human reading errors in traditional contact meter measurement, thus improving the accuracy of equipment detection.

[0097] 2. The use of double-slider linear guides makes the vertical and horizontal displacement of the detection roller more stable and accurate, further improving the stability and accuracy of equipment detection.

[0098] 3. The equipment has a simple structure, is easy to adjust and has low maintenance cost.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. Contact end diameter jump detection equipment, characterized in that: include: Detection components, displacement mechanisms, detection platform components and support frames; The detection assembly comprises a detection roller and a displacement sensor, wherein the detection roller contacts the detected surface of the workpiece; The displacement sensor is used to detect the displacement values ​​of the detection roller in the vertical direction and the horizontal direction caused by the value change of the detected surface; The displacement mechanism is arranged on the support frame and is used to drive the detection component to move in the vertical direction and the horizontal direction relative to the detected surface of the workpiece; The detection platform assembly comprises a detection platform and a mounting chuck. The mounting chuck is rotatably arranged on the detection platform and is used for mounting and clamping the workpiece to be detected and driving the workpiece to be detected to rotate around the center line of the workpiece.

2. The contact end diameter jump detection device according to claim 1, characterized in that: The detection roller is fixedly arranged at one end of the roller mounting plate; The roller mounting plate can be arranged on the fine-tuning plate so as to be movable leftward and rightward in the horizontal direction; A first guide assembly is horizontally arranged between the roller mounting plate and the fine-tuning plate, and is used for guiding the roller mounting plate to move horizontally left and right relative to the fine-tuning plate; A displacement sensor is fixedly arranged horizontally at one end of the fine-tuning plate away from the detection roller, for detecting the horizontal displacement of the roller mounting plate.

3. The contact end diameter jump detection device according to claim 2 is characterized in that: The displacement mechanism includes a vertical displacement plate and a vertical displacement telescopic mechanism; The vertical displacement plate is arranged above the fine-tuning plate at intervals, and elastic members are connected to the vertical displacement plate and the fine-tuning plate on the left and right sides in the horizontal direction; A displacement sensor is vertically and fixedly arranged on the vertical displacement plate to detect the displacement of the fine-tuning plate in the vertical direction.

4. The contact type end diameter jump detection device according to claim 3 is characterized in that: The vertical displacement plate is arranged on the first horizontal displacement plate so as to be movable up and down in the vertical direction; A second guide assembly is vertically arranged between the vertical displacement plate and the first horizontal displacement plate, and is used for guiding the vertical displacement plate to move up and down relative to the first horizontal displacement plate in the vertical direction; The telescopic end of the vertical displacement telescopic mechanism is fixedly connected to the vertical displacement plate, and is used to drive the vertical displacement plate to move up and down in the vertical direction; The fixed end of the vertical displacement telescopic mechanism is fixedly connected to the first horizontal displacement plate.

5. The contact type end diameter jump detection device according to claim 4, characterized in that: The detection assembly, the vertical displacement telescopic mechanism and the vertical displacement plate are vertically symmetrical and spaced apart in two groups, and are respectively used for detecting displacement of the upper and lower wheel rim surfaces of the rim circumference.

6. The contact type end diameter jump detection device according to claim 4, characterized in that: It also includes a horizontal displacement telescopic mechanism, the telescopic end of which is fixedly connected to the first horizontal displacement plate, and is used to drive the first horizontal displacement plate to move left and right in the horizontal direction; The fixed end of the horizontal displacement telescopic mechanism is fixedly connected to the second horizontal displacement plate; The first horizontal displacement plate is movably disposed on the second horizontal displacement plate along a horizontal direction. A third guide assembly is horizontally arranged between the first horizontal displacement plate and the second horizontal displacement plate, and is used for guiding the first horizontal displacement plate to move horizontally left and right relative to the second horizontal displacement plate.

7. The contact type end diameter jump detection device according to claim 6, characterized in that: It also includes a hand wheel and a horizontal displacement transmission mechanism, wherein the hand wheel is used to drive the horizontal displacement transmission mechanism to move; The horizontal displacement transmission mechanism is used to drive the second horizontal displacement plate to move left and right in the horizontal direction; The second horizontal displacement plate is movably arranged on the support frame in the horizontal direction; a fourth guide assembly is horizontally arranged between the second horizontal displacement plate and the support frame, and is used for guiding the second horizontal displacement plate to move horizontally in the left and right direction relative to the support frame; The hand wheel and the horizontal displacement transmission mechanism are fixedly arranged on the support frame.

8. The contact type end diameter jump detection device according to claim 1, characterized in that: The detection platform assembly also includes a detection platform base and a drive motor. The drive motor is fixedly arranged on the detection platform base and is used to drive the mounting chuck to drive the rim to rotate around a vertical axis.

9. The contact type end diameter jump detection device according to claim 1, characterized in that: The detection platform is fixedly arranged above the detection platform base.

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