Brake disc mounting hole testing fixture

Abstract

The utility model discloses a brake disc mounting hole testing fixture, and relates to the technical field of machining. The camera shooting device comprises a supporting base and shading supporting plates, a plurality of limiting pressing plates are arranged on the periphery of the top of the supporting base, a plurality of sliding grooves are formed in the top of the supporting base, the shading supporting plates are attached to the upper side of the supporting base, and a camera shooting assembly is clamped and fixed to the top of each shading supporting plate. A positioning air cylinder is arranged on one side of the bottom of each shading supporting plate. By arranging the supporting base and the shading supporting plate, the problems that when an installation hole testing fixture is used, the testing fixture and a brake disc need to be connected and positioned through bolts, bolts and nuts, labor intensity of workers is greatly increased, time and labor are wasted in connection and disassembly of a large number of brake discs and the testing fixture, and working efficiency is high are solved. And the detection operation of the detection tool is complicated.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, in particular to a brake disc mounting hole inspection tool. Background Art

[0002] The brake disc is a friction pair of a disc brake. In addition to the strength and rigidity required as a component, it should also have the highest and most stable friction coefficient, as well as appropriate wear resistance, heat resistance, heat dissipation and heat capacity. It has a frictionless boosting effect, and its performance is less reduced after water ingress. Under the condition of the same output braking torque, its size and mass are smaller than those of a drum brake, and the thermal expansion along the thickness direction is extremely small, making it easier to achieve automatic clearance adjustment. Other maintenance and repair operations are also relatively simple. During the production and processing of the brake disc, after the processing and forming, in order to ensure the stability and service life of the brake disc, it is usually necessary to use a detection tool to detect the mounting holes, adjustment holes and threaded holes of the brake disc. The mounting hole inspection tool detects the size of the mounting hole and whether there is an angle of inclination, but it still has the following disadvantages in actual use:

[0003] The utility model with the publication number CN209181662U discloses a test fixture for testing the front brake disc of an automobile. The utility model uses the positioning shaft on the first test fixture to position the center hole of the brake disc, and uses the first detection pin, the second detection pin and the detection latch to detect the position and tolerance of the mounting hole, the adjustment hole and the threaded hole on the brake disc respectively; the second test fixture is also used to detect the geometric tolerance of the upper surface of the brake disc, the geometric tolerance of the upper brake surface and the lower brake surface, and the thickness difference of the system surface. When performing the detection, the latch, bolt, nut, etc. need to be manually fixed to ensure stability during measurement, but the labor intensity of the staff is greatly increased, and when a large number of brake discs are detected, loading and unloading is time-consuming and laborious;

[0004] When the inspection fixture is used to inspect the mounting holes of the brake disc, the inspection operation is relatively complicated, and various data need to be inspected multiple times. There are often multiple mounting holes on the surface of the brake disc, and each mounting hole needs to be inspected by the inspection fixture, which is time-consuming and laborious. Utility Model Content

[0005] The utility model aims to provide a brake disc mounting hole gauge, which solves the problem that when the mounting hole gauge is in use, the connection and positioning of the gauge and the brake disc require the use of tools such as pins, bolts and nuts, which greatly increases the labor intensity of the staff, and the connection and disassembly of a large number of brake discs and the gauge is time-consuming and laborious, and the detection operation of the gauge is relatively complicated.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a brake disc mounting hole inspection tool, comprising a support base and a shading support plate, a plurality of limit pressure plates are arranged around the top of the support base, a plurality of slide grooves are opened on the top of the support base, a plurality of shading support plates are attached to the upper side of the support base, a camera assembly is clamped and fixed on the top of each shading support plate, and a positioning cylinder is arranged on one side of the bottom of each shading support plate;

[0008] The brake disc placed on the upper side of the support base can be positioned by the limiting pressure plate to avoid shaking during detection and ensure stability during detection. The shading support plate can move along the slide groove to position the mounting holes at different positions of brake discs of different sizes, thereby improving the flexibility of the use of the inspection fixture. When inspecting the mounting hole of the brake disc, the position of the shading support plate is adjusted according to the theoretical size of the brake disc, and the shading support plate is made to fit the bottom side of the mounting hole of the brake disc. The area where light is received can be photographed by the camera component, and the size of the mounting hole can be judged based on the area where light is received, and the inclination angle of the mounting hole can be judged based on the shortest distance from the edge of the photographed light spot to the outer peripheral surface of the insertion rod. The operation is simple and convenient, and multiple mounting holes can be inspected at the same time, thereby improving the detection efficiency.

[0009] Furthermore, anti-skid pads are clamped and fixed around the bottom of the support base, one end of each of the limit pressure plates is clamped with a first telescopic rod, and the other end of each of the first telescopic rods is slidably clamped with a limit cylinder, and the limit cylinder is clamped on the top of the support base;

[0010] The anti-slip pad can improve the friction between the support base and the contact surface to ensure the stability of the inspection fixture during use. The surface of the limit pressure plate can be provided with a protrusion to further limit the brake disc to ensure that the center of the circle of the shading support plate and the mounting hole are located in the same straight line and perpendicular to the surface of the support base, further ensuring the accuracy of the test result. The limit pressure plate can be driven to move by the limit cylinder to limit brake discs of different sizes, thereby improving the flexibility of the inspection fixture.

[0011] Furthermore, a plug rod is fixedly connected to the center of the top of each shading support plate, a fill light is fixedly connected to the top of the plug rod, and the camera assembly is located on the outer peripheral surface of the plug rod;

[0012] The mounting hole of the brake disc can be positioned by means of an insertion rod. When the brake disc is placed on the upper side of the supporting base, a plurality of insertion rods are inserted into the inner sides of a plurality of mounting holes at the same time. After the brake disc is positioned by means of a limiting pressure plate, the mounting hole is filled with light by means of a fill light, and the area where light is received is photographed by means of a camera assembly. The size of the mounting hole is determined based on the area where light is received, and the inclination angle of the mounting hole is determined based on the shortest distance from the edge of the photographed light spot to the outer peripheral surface of the insertion rod. The operation is simple and convenient, and a plurality of mounting holes can be inspected at the same time, thereby improving the inspection efficiency.

[0013] Furthermore, each of the shading support plates has a third telescopic rod clamped at the bottom, a lifting cylinder is slidably clamped at the bottom of the third telescopic rod, a sliding rod is clamped at the bottom of the lifting cylinder, and a plurality of sliding rods are respectively slidably clamped in a plurality of sliding grooves;

[0014] The lifting cylinder can drive the shading support plate to move up and down, and during detection, the shading support plate is attached to the bottom side of the mounting hole of the brake disc to prevent light from escaping to the outside and causing deviations in the detection results.

[0015] Furthermore, one end of the positioning cylinder is slidably connected to a second telescopic rod, the other end of the second telescopic rod is connected to the outer peripheral surface of the sliding rod, and the plurality of positioning cylinders are respectively connected to the inner sides of the plurality of sliding grooves;

[0016] The positioning cylinder can drive the slide bar to slide along the slide groove, and adjust the position of the light shielding support plate, so that the inspection fixture can detect the installation holes at different positions of brake discs of different sizes, thereby improving the flexibility of the inspection fixture.

[0017] The utility model has the following beneficial effects:

[0018] The utility model solves the problem that when performing inspection, the pins, bolts, nuts, etc. need to be manually fixed to ensure stability during measurement by arranging a supporting base and a shading supporting plate, but the labor intensity of the staff is greatly increased, and when a large number of brake discs are inspected, the loading and unloading is time-consuming and laborious. When connecting the brake disc and the inspection fixture, it is only necessary to control the positioning cylinder to drive the shading supporting plate to move to a suitable position according to the size of the brake disc, so that a plurality of plug rods are inserted into the mounting hole of the brake disc, and then the limiting cylinder is controlled to drive the limiting pressure plate to move to limit the edge of the brake disc, so that the brake disc mounting hole can be inspected. When disassembling, it is only necessary to control the limiting pressure plate to move in the opposite direction by the control cylinder to release the limit on the brake disc, so that the brake disc can be quickly removed, and the operation is simple and convenient.

[0019] The utility model solves the problem that when the inspection tool detects the mounting hole of the brake disc, the inspection operation is relatively complicated, and various data need to be inspected multiple times, and the brake disc surface often has multiple mounting holes, and each mounting hole needs to be inspected by the inspection tool, and the operation is time-consuming and laborious. After the inspection tool and the brake disc are connected and positioned, the fill light is controlled to fill light in the mounting hole, and the light area is recorded by the camera component. The size of the mounting hole is judged according to the area of ​​the received light, and the inclination angle of the mounting hole is judged according to the shortest distance from the edge of the photographed light spot to the outer peripheral surface of the insertion rod. The operation is simple and convenient, and multiple mounting holes can be inspected at the same time, thereby improving the inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a structural effect diagram of the utility model;

[0021] Figure 2 This is a structural diagram of the support base of the utility model;

[0022] Figure 3 This is a structural diagram of the limit pressure plate of the utility model;

[0023] Figure 4 This is a structural diagram of the light-shielding support plate and the positioning cylinder of the utility model;

[0024] Figure 5 This is a structural diagram of the shading support plate of the utility model.

[0025] Reference numerals:

[0026] 1. Support base; 101. Limiting pressure plate; 102. Slide groove; 103. Anti-skid pad; 104. First telescopic rod; 105. Limiting cylinder; 2. Light shielding support plate; 201. Camera assembly; 202. Slide rod; 203. Positioning cylinder; 204. Second telescopic rod; 205. Fill light; 206. Insert rod; 207. Lifting cylinder; 208. Third telescopic rod. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] See also Figure 1-5 As shown, the utility model is a brake disc mounting hole inspection fixture, comprising a support base 1 and a light shielding support plate 2, a plurality of limit pressure plates 101 are arranged around the top of the support base 1, a plurality of slide grooves 102 are opened on the top of the support base 1, a plurality of light shielding support plates 2 are attached to the upper side of the support base 1, a camera assembly 201 is clamped and fixed on the top of each light shielding support plate 2, and a positioning cylinder 203 is arranged on one side of the bottom of each light shielding support plate 2;

[0029] According to the size and model of the brake disc to be detected, the positioning cylinder 203 is controlled to drive the shading support plate 2 to move along the slide groove 102 to a suitable position, the brake disc is taken and placed on the upper side of the support base 1, and the lifting cylinder 207 is controlled to drive the shading support plate 2 to move upward, so that the multiple insertion rods 206 are inserted into the multiple mounting holes, and the limiting cylinder 105 is controlled to drive the limiting pressure plate 101 to move, limit the edge of the brake disc, and make the center of the shading support plate 2 and the mounting hole located in the same straight line and perpendicular to the surface of the support base 1, and the lifting cylinder 207 is controlled again. 7 drives the shading support plate 2 to move upward until it fits against the bottom of the mounting hole, turns on the fill light 205 to fill light in the mounting hole, and takes a photo through the camera assembly 201. The accuracy of the mounting hole size is judged by the area receiving light in the photo, and the inclination angle of the mounting hole is judged by the shortest distance from the edge of the photographed light spot to the outer circumference of the insertion rod 206. After detection, the limit cylinder 105 is controlled to drive the limit pressure plate 101 to move in the opposite direction to release the limit on the brake disc, and the detected brake disc is quickly removed and the undetected brake disc is installed again for detection.

[0030] Among them Figure 1-3 As shown, the bottom of the support base 1 is clamped and fixed with anti-skid pads 103 around it, one end of each limiting pressure plate 101 is clamped with a first telescopic rod 104, and the other end of each first telescopic rod 104 is slidably clamped with a limiting cylinder 105, and the limiting cylinder 105 is clamped on the top of the support base 1;

[0031] After the brake disc is placed on the upper side of the support base 1 and an insertion rod 206 is inserted into each mounting hole, the limiting cylinder 105 is controlled to drive the first telescopic rod 104 to stretch, further driving the limiting pressure plate 101 to move and limit the brake disc, and making the center of the shading support plate 2 and the mounting hole located in the same straight line and perpendicular to the surface of the support base 1.

[0032] Among them Figure 1 , 4 As shown in , 5, a plug rod 206 is fixedly connected to the center of the top of each shading support plate 2, a fill light 205 is fixedly connected to the top of the plug rod 206, and the camera assembly 201 is located on the outer circumference of the plug rod 206. A third telescopic rod 208 is connected to the bottom of each shading support plate 2, and a lifting cylinder 207 is slidably connected to the bottom of the third telescopic rod 208. A sliding rod 202 is connected to the bottom of the lifting cylinder 207. Multiple sliding rods 202 are respectively slidably connected to multiple sliding grooves 102. One end of the positioning cylinder 203 is slidably connected to the second telescopic rod 204. The other end of the second telescopic rod 204 is connected to the outer circumference of the sliding rod 202. Multiple positioning cylinders 203 are respectively connected to the inner sides of multiple sliding grooves 102;

[0033] When inspecting the mounting hole of the brake disc, the positioning cylinder 203 is controlled according to the size of the brake disc to drive the second telescopic rod 204 to extend and retract, so that the shading support plate 2 slides along the slide groove 102 to a suitable position, so that the insertion rod 206 can be inserted into the mounting hole of the brake disc. After the brake disc is limited by the limiting pressure plate 101, the third telescopic rod 208 is stretched by the lifting cylinder 207, and the shading support plate 2 is further driven to rise, so that the shading support plate 2 fits the bottom of the mounting hole of the brake disc, and the fill light 205 is turned on to fill light in the mounting hole. The camera component 201 is used to take a photo, and the accuracy of the mounting hole size is judged by the area receiving light in the photo. The inclination angle of the mounting hole is judged by the shortest distance from the edge of the photographed light spot to the outer peripheral surface of the insertion rod 206.

[0034] The specific working principle of the utility model is as follows: when the brake disc mounting hole is detected, the positioning cylinder 203 is controlled according to the size of the brake disc to drive the extension and retraction of the second telescopic rod 204, so that the shading support plate 2 slides along the slide groove 102 to a suitable position, and the brake disc is placed on the upper side of the support base 1, and the lifting cylinder 207 is controlled to drive the third telescopic rod 208 to stretch, and further drive the rise of the shading support plate 2, so that each mounting hole of the brake disc is plugged with an insertion rod 206, and then the limiting cylinder 105 is controlled to drive the first telescopic rod 104 to stretch, and further drive the limiting pressure plate 101 to move and limit the brake disc, and make the shading support plate 2 and the center of the mounting hole located at In the same straight line and perpendicular to the surface of the supporting base 1, the shading support plate 2 is driven upward by the lifting cylinder 207 again until the shading support plate 2 is attached to the bottom of the mounting hole of the brake disc, the fill light 205 is turned on to fill light in the mounting hole, and a photo is taken by the camera component 201. The accuracy of the mounting hole size is judged by the area receiving light in the photo, and the inclination angle of the mounting hole is judged by the shortest distance from the edge of the photographed light spot to the outer peripheral surface of the insertion rod 206. After the detection is completed, the limit cylinder 105 is controlled to drive the limit pressure plate 101 to move in the opposite direction to release the limit on the brake disc, and the detected brake disc is quickly removed and the undetected brake disc is installed again for detection.

[0035] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A brake disc mounting hole inspection fixture, comprising a support base (1) and a light shielding support plate (2), characterized in that: A plurality of limiting pressure plates (101) are arranged around the top of the support base (1), a plurality of slide grooves (102) are opened on the top of the support base (1), a plurality of light shielding support plates (2) are attached to the upper side of the support base (1), a camera assembly (201) is clamped and fixed on the top of each light shielding support plate (2), and a positioning cylinder (203) is arranged on one side of the bottom of each light shielding support plate (2).

2. A brake disc mounting hole inspection tool according to claim 1, characterized in that: The bottom of the support base (1) is clamped and fixed with anti-skid pads (103) around its periphery, one end of each of the limiting pressure plates (101) is clamped with a first telescopic rod (104), the other end of each of the first telescopic rods (104) is slidably clamped with a limiting cylinder (105), and the limiting cylinder (105) is clamped to the top of the support base (1).

3. A brake disc mounting hole inspection tool according to claim 1, characterized in that: A plug rod (206) is clamped and fixed at the center of the top of each light-shielding support plate (2), a fill light (205) is clamped and fixed at the top of the plug rod (206), and the camera assembly (201) is located on the outer peripheral surface of the plug rod (206).

4. A brake disc mounting hole inspection tool according to claim 1, characterized in that: A third telescopic rod (208) is clamped at the bottom of each shading support plate (2), a lifting cylinder (207) is slidably clamped at the bottom of the third telescopic rod (208), a sliding rod (202) is clamped at the bottom of the lifting cylinder (207), and a plurality of sliding rods (202) are respectively slidably clamped in a plurality of sliding grooves (102).

5. A brake disc mounting hole inspection tool according to claim 4, characterized in that: One end of the positioning cylinder (203) is slidably engaged with a second telescopic rod (204), and the other end of the second telescopic rod (204) is engaged with the outer peripheral surface of the sliding rod (202). The plurality of positioning cylinders (203) are respectively engaged with the inner sides of the plurality of sliding grooves (102).

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