Automobile brake pad detection device

Abstract

The utility model relates to the technical field of automobile brake pad detection, in particular to an automobile brake pad detection device. Comprising a carrying seat full of a plurality of air suction holes, single-rod air cylinders and double-rod air cylinders are arranged behind baffles on the four sides of the carrying seat respectively, clamping columns arranged at the front ends of the single-rod air cylinders can abut against brake pads, tensioning belts are connected to the front ends of the double-rod air cylinders on the same side, the two tensioning belts can flexibly tighten the brake pads, and the air suction holes in the bottom can suck the brake pads. A machine vision assembly and a pen type displacement sensor are arranged above the carrying seat, and the machine vision assembly and the pen type displacement sensor are matched with each other so that end face information of the brake pad can be detected; detection parameters of the device are rich, the weight, the height (thickness), the surface flatness and the end face area of a brake pad finished product can be detected, the brake pad is fixed in an elastically-deformable flexible clamping mode, the brake pad can be reliably fixed while the brake pad is not damaged, and the brake pad can be comprehensively fixed through bottom adsorption.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile brake pad detection, in particular to an automobile brake pad detection device. Background Art

[0002] Family cars usually use disc brakes for braking. The components of disc brakes include brake discs, brake pads, brake calipers and brake cylinders. The brake pads are fixed to the brake calipers. The braking principle is that the brake calipers clamp the brake discs, and the braking force is generated by the friction between the brake pads and the round metal brake discs.

[0003] The existing technology for testing brake discs is relatively mature, but the brake disc is in direct contact with the brake pad, so the production quality of the brake disc also affects the braking effect. At present, the testing of brake pads is that one device can only test one performance, and the testing is not comprehensive. At the same time, some testing items such as surface flatness require the brake pad to be well fixed during testing due to the contact testing. However, due to the different specifications and sizes of brake pads, it is often difficult to clamp them. In addition, many testing equipment does not take the operator's safety into consideration.

[0004] Therefore, there is an urgent need for a detection device that can detect multiple items while taking into account multiple specifications of brake pads and safety. Utility Model Content

[0005] In order to make up for the deficiencies in the prior art and achieve the above functions, the utility model provides a vehicle brake pad detection device.

[0006] The utility model is achieved through the following technical solutions:

[0007] A vehicle brake pad detection device includes a carrier, wherein a pair of baffles a and a pair of baffles b are respectively provided on the front and rear sides and the left and right sides of the carrier, and the baffles a and b are each provided with two penetrating square holes;

[0008] A double-rod cylinder is provided behind each square hole of the baffle a, and its piston rod passes through the baffle a. A vertical plate is installed at the front end of the double-rod cylinder, and a tension belt is connected between the two vertical plates on the same side;

[0009] Two single-rod cylinders are installed above and below each square hole of the baffle b, and the piston rods of the single-rod cylinders pass through the baffle b. Each single-rod cylinder is connected to a clamping column at the front end through a cylinder joint. The front end of the clamping column is a spherical soft rubber head. An edge measurement sensor is installed between the two square holes of the baffle b.

[0010] A pen-type displacement sensor is provided directly above the carrier and fixed below the receiving block. A machine vision component is also provided on the side of the receiving block. The receiving block is connected to the three-axis gantry through the upper fixing plate.

[0011] Furthermore, a placement area is provided at the upper end of the carrier, a plurality of air suction holes are provided in the placement area, and the bottom of each air suction hole is individually connected to an air suction pipe, and pressure sensors are installed on the four corners of the carrier.

[0012] Furthermore, the air valves connected to the single-rod cylinders are not connected to each other, and the reflection units of the two edge measurement sensors are set up opposite to each other.

[0013] Furthermore, two opposing grating sensors are fixed above the two baffles b, and when the signal between the two grating sensors is blocked, all the cylinders automatically retract.

[0014] Furthermore, the shape of the soft rubber head exceeds that of a hemisphere, and after the soft rubber head and the tensioning belt are pushed by the piston rod to contact the side surface of the brake pad, they can be elastically deformed to squeeze the brake pad.

[0015] Furthermore, the machine vision component includes a lens installed below the camera and lighting units on both sides. The machine vision component can specifically locate the position of the brake pad; the three-axis gantry can control the three-dimensional movement of the receiving block.

[0016] Furthermore, when the piston rods of the single-rod cylinder and the double-rod cylinder are in a fully retracted state, their front ends are both located outside the placement area and inside their respective baffles.

[0017] The beneficial effects of the present invention are as follows: (1) The device has a wide range of detection parameters and can detect the weight, height (thickness), surface flatness, and end surface area of ​​the finished brake pad. (2) The device adopts a flexible clamping method that can be elastically deformed to fix the brake pad, which does not damage the brake pad itself while still being able to securely fix it. In addition, the bottom adsorption method can fully fix it. (3) The use of a grating in the device can ensure the safety of the operator when taking and placing the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure without the three-axis gantry;

[0020] Figure 3 for Figure 2 Schematic diagram of the bottom structure;

[0021] Figure 4 It is a structural diagram of the matching between the clamping column and the cylinder joint;

[0022] Figure 5 It is an enlarged schematic diagram of the double-axis cylinder end structure of the present invention.

[0023] In the picture:

[0024] 1. Carrier, 101. Suction hole, 102. Placement area, 2. Baffle a, 201. Double-rod cylinder, 202. Vertical plate, 203. Tensioning belt, 2031, 3. Baffle b, 301. Single-rod cylinder, 302. Cylinder joint, 303. Clamping column, 3031. Soft rubber head, 4. Grating sensor, 5. Edge measurement sensor, 501. Reflection unit, 6. Pen-type displacement sensor, 7. Adapter block, 8. Camera, 801. Lens, 802. Illumination unit, 9. Three-axis gantry, 901. Fixing plate, 10. Pressure sensor, 11. Suction pipe, 12. Brake pad. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in a variety of different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0027] like Figures 1 to 5 As shown, the utility model includes a carrier 1, and a pair of baffles a2 and a pair of baffles b3 are respectively provided on the front and back, left and right sides of the carrier 1, and two square holes are provided on the baffles a2 and b3;

[0028] A double-rod cylinder 201 is provided behind each square hole of the baffle a2, and its piston rod passes through the baffle a2. A vertical plate 202 is installed at the front end of the double-rod cylinder 201. A tensioning belt 203 is connected between the two vertical plates 202 on the same side. The tensioning belt 203 is a square rubber belt used to flexibly tighten the front and rear sides of the brake pad 12.

[0029] Two single-rod cylinders 301 are installed above and below each square hole of the baffle b3, and the piston rods of the single-rod cylinders 301 pass through the baffle b3. Each single-rod cylinder 301 is connected to a clamping column 303 at the front end through a cylinder joint 302. The front end of the clamping column 303 is a spherical soft rubber head 3031, the purpose of which is to flexibly deform and squeeze when contacting the side of the brake pad 12. An edge measurement sensor 5 is provided between the two square holes of the baffle b3;

[0030] A pen-type displacement sensor 6 is provided directly above the carrier 1, which can measure the surface flatness of the brake pad 12. The pen-type displacement sensor 6 is fixed below the receiving block 7. The side of the receiving block 7 is also provided with a machine vision component. The receiving block 7 is connected to the three-axis gantry truss 9 through the upper fixing plate 901.

[0031] A placement area 102 is provided at the upper end of the carrier 1. Several suction holes 101 are provided in the placement area 102, and the bottom of each suction hole 101 is individually connected to a suction pipe 11. Pressure sensors 10 are installed at the four corners of the carrier 1 to measure the weight of the brake pad 12.

[0032] The air valves connected to the single-rod cylinder 301 are not connected to each other to ensure that they can be in different lengths and are suitable for brake pads 12 of different specifications. The reflection units 501 of the two edge measurement sensors 5 are set relative to each other and have a measuring range of 15 degrees to measure the height of brake pads 12 within a certain height range.

[0033] Two opposing grating sensors 4 are fixed above the two baffles b3. When the signal between the two grating sensors 4 is blocked, all cylinders automatically retract to prevent fingers from being pinched.

[0034] The shape of the soft rubber head 3031 is larger than a hemisphere, and when deformation occurs, it can better expand to increase the contact area and ensure sufficient fixation. After the soft rubber head 3031 and the tensioning belt 203 are pushed by the piston rod to contact the side of the brake pad 12, they can undergo elastic deformation and squeeze the brake pad 12.

[0035] The machine vision component includes a lens 801 installed below the camera 8 and lighting units 802 on both sides. The machine vision component can specifically locate the position of the brake pad 12 to measure the end surface area, whether there are concave and convex points, and provide position information for flatness measurement; the three-axis gantry 9 can control the support block 7 to move in three dimensions, that is, it can control movement forward and backward, left and right, and up and down.

[0036] When the piston rods of the single-rod cylinder 301 and the double-rod cylinder 201 are in a fully retracted state, their front ends are both located outside the placement area 102 and inside their respective baffles.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A vehicle brake pad detection device, comprising a carrier (1), characterized in that: A pair of baffles a (2) and a pair of baffles b (3) are respectively provided on the front and rear sides and the left and right sides of the carrier (1), and two square holes are provided on each of the baffles a (2) and the baffles b (3); A double-rod cylinder (201) is provided behind each square hole of the baffle a (2), and its piston rod passes through the baffle a (2). A vertical plate (202) is installed at the front end of the double-rod cylinder (201), and a tensioning belt (203) is connected between the two vertical plates (202) on the same side. Two single-rod cylinders (301) are arranged above and below each square hole of the baffle b (3), and the piston rods of the single-rod cylinders (301) pass through the baffle b (3). Each single-rod cylinder (301) is connected to a clamping column (303) at the front end through a cylinder joint (302). The front end of the clamping column (303) is a spherical soft rubber head (3031). An edge measurement sensor (5) is provided between the two square holes of the baffle b (3); A pen-type displacement sensor (6) is provided directly above the carrier (1), and the pen-type displacement sensor (6) is fixed below a receiving block (7). A machine vision component is also provided on the side of the receiving block (7), and the receiving block (7) is connected to the three-axis gantry (9) via an upper fixing plate (901).

2. The automobile brake pad detection device according to claim 1, characterized in that: A placement area (102) is provided at the upper end of the carrier (1), a plurality of air suction holes (101) are provided in the placement area (102), and the bottom of each air suction hole (101) is individually connected to an air suction pipe (11), and pressure sensors (10) are installed at the four corners of the carrier (1).

3. The automobile brake pad detection device according to claim 1, characterized in that: The air valves connected to the single-rod air cylinder (301) are not connected to each other, and the reflection units (501) of the two edge measurement sensors (5) are arranged opposite to each other.

4. The automobile brake pad detection device according to claim 1, characterized in that: Two opposing grating sensors (4) are fixed above the two baffles b (3), and when the signal between the two grating sensors (4) is blocked, all cylinders automatically retract.

5. The automobile brake pad detection device according to claim 1, characterized in that: The shape of the soft rubber head (3031) exceeds that of a hemisphere. After being pushed by the piston rod and contacting the side of the brake pad (12), the soft rubber head (3031) and the tensioning belt (203) can undergo elastic deformation and squeeze the brake pad (12).

6. The automobile brake pad detection device according to claim 1, characterized in that: The machine vision component includes a lens (801) installed below the camera (8) and lighting units (802) on both sides. The machine vision component can specifically locate the position of the brake pad (12); the three-axis gantry (9) can control the receiving block (7) to move in three dimensions.

7. The automobile brake pad detection device according to claim 1, characterized in that: When the piston rods of the single-rod cylinder (301) and the double-rod cylinder (201) are in a fully retracted state, their front ends are both located outside the placement area (102) and inside their respective baffles.

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