Multi-station brake disc abrasion testing device

Abstract

The invention provides a multi-station brake disc abrasion testing device, and relates to the technical field of brake function testing, the multi-station brake disc abrasion testing device comprises a transmission device, and a centralized control electric cylinder is fixedly arranged on the rear side of the transmission device; an assembling seat is fixedly arranged on the right side of the transmission device; a front assembling frame is fixedly arranged above the front side of the assembling base, and an auxiliary shaft is rotationally arranged on the rear side of the top of the front assembling frame. A rear assembly frame is fixedly arranged above the rear side of the assembly seat, and a rotary sliding sleeve is rotationally arranged in the middle of the top of the assembly seat; the multi-station synchronous abrasion testing function can be provided, the number of stations can be increased or decreased according to needs, the connecting sliding rods can be mutually spliced, the thrust sliding frames can be mutually spliced to provide synchronous driving, the rotating sliding sleeves are provided with belts or chains to be in synchronous transmission connection, and then synchronous driving can be conducted on different stations; the problem that an existing device lacks a multi-station testing function is solved.

Description

Technical Field

[0001] The invention relates to the technical field of brake function testing, and in particular to a multi-station brake disc wear testing device. Background Art

[0002] When producing brake discs and configuring corresponding brake structures, it is necessary to perform wear detection on the brake discs to determine the wear conditions of the brake discs when they are in continuous contact with brake structures of different materials, so as to select suitable wear-resistant structures. Generally, the brake discs are fixed with tooling, and then driven to rotate to contact the brake parts for automatic testing.

[0003] The test devices currently used have the following disadvantages: 1. It is inconvenient to conduct comparison in a single test. There is a lack of a function to adjust the number of comparison and synchronous wear tests as needed, which is not conducive to continuous testing. It is inconvenient to set the number of tests according to the number of brake discs to achieve the test; 2. Manual installation of brake discs is cumbersome, and there is a lack of a load-bearing structure for the brake discs that is easy to control, as well as a corresponding drive structure; 3. The drive is not convenient to follow the quantity configuration, and lacks the function of synchronous hydraulic drive testing. Summary of the invention

[0004] In view of this, the present invention provides a multi-station brake disc wear testing device to address the deficiencies in the above-mentioned prior art.

[0005] The present invention provides a multi-station brake disc wear testing device, which specifically comprises: a transmission device, wherein a transmission motor is fixedly arranged on the top of the transmission device; a centralized control electric cylinder is fixedly arranged on the rear side of the transmission device; an assembly seat is fixedly arranged on the right side of the transmission device; a front assembly frame is fixedly arranged on the upper front side of the assembly seat, and a secondary shaft is rotatably arranged on the rear side of the top of the front assembly frame; a rear assembly frame is fixedly arranged on the upper rear side of the assembly seat, a rotating sleeve is rotatably arranged in the middle of the top of the assembly seat, a hexagonal shaft is slidably arranged in the rotating sleeve, and a law is fixedly arranged at the front end of the hexagonal shaft A flange seat and a circular groove are provided in the middle of the front end of the flange seat; the rear end of the secondary shaft can be inserted into the circular groove in the middle of the front end of the flange seat; a support frame is slidably arranged in the middle of the top of the assembly seat, and the top two sides of the support frame are outwardly inclined bracket structures; a test seat is fixedly arranged in the middle position of the front and rear sides of the top of the assembly seat, and a side piston is fixedly arranged on the outside of the test seat, and a moving slider is fixedly arranged on the telescopic end of the side piston; a mounting frame is fixedly arranged on the adjacent surfaces of the moving sliders on both sides, and a wear block is slidably inserted in the mounting frame; a belt drive connection is arranged on the outside of the rotating sleeve and the shaft end of the transmission motor.

[0006] Optionally, a push-control screw is rotatably arranged at the lower middle part of the transmission device, a push-control motor is fixedly arranged at one side of the middle part of the transmission device, and the push-control motor is transmission-connected to the push-control screw; a driving slide frame is slidingly arranged in the middle of the transmission device, and the left side of the driving slide frame is threadedly connected to the push-control screw.

[0007] Optionally, two groups of vertical guide rods are fixedly arranged in the middle of the assembly seat, and the bottom of the support frame is slidably connected to the vertical guide rods; an intermediate slide bar is fixedly arranged in the middle of the assembly seat, and a connecting slide bar is slidably arranged outside the intermediate slide bar, both ends of the connecting slide bar are assembly structures, and the length of the connecting slide bar is consistent with the assembly seat; the middle of the top of the connecting slide bar is an inclined transition structure with the left lower and the right higher; the connecting slide bar is fixedly connected to the driving slide frame.

[0008] Optionally, a trapezoidal block is fixedly provided at the rear bottom of the support frame, and the inclined surface of the trapezoidal block contacts the middle inclined surface transition structure connecting the sliding rod.

[0009] Optionally, the external limiting sliding of the secondary shaft is provided with a rotating sleeve, the rear end of the rotating sleeve is integrally surrounded by a flange pile, and the outside of the secondary shaft is provided with a spring at the front end of the rotating sleeve; the flange pile can be fitted and inserted into the flange hole of the flange seat.

[0010] Optionally, a screw slide is fixedly arranged on the rear side of the rear assembly frame, a positioning screw is rotatably arranged in the middle of the screw slide, an alignment motor is fixedly arranged on the rear side of the screw slide, and the alignment motor is transmission-connected to the alignment screw; a movable rotating frame is slidably arranged in the screw slide, and the alignment screw is threadedly connected to the alignment screw.

[0011] Optionally, four groups of guide columns are integrally arranged at the outer corners of the movable slider, and the guide columns are slidably connected to the test seat; convex strips are arranged on both sides of the movable slider, and two groups of spring piles are slidably arranged in the convex strips, and the outer ends of the spring piles pass through the convex strips on both sides of the movable slider and then a handle structure is arranged; the main body of the spring pile is a T-shaped structure, the front end of the spring pile passes through the mounting frame, and a spring is sleeved on the outer narrow side of the spring pile.

[0012] Optionally, both sides of the mounting frame are corner structures, and both sides of the wear block are through-slot structures that match the mounting frame; four groups of slots aligned with the spring piles are provided at positions of the wear block close to the spring piles.

[0013] Optionally, a slide groove row is fixedly provided on the rear side of the assembly seat, a thrust slide is slidably provided outside the slide groove row, and the length of the thrust slide is consistent with that of the assembly seat; a pressure piston is fixedly provided on the rear side of the transmission device, the sliding part of the thrust slide is fixedly connected to the pressure piston, and the thrust slide is fixedly connected to the telescopic end of the centralized control electric cylinder; the cylinder end of the pressure piston is connected to the two groups of side pistons; a reader is provided on the top of the assembly seat; a pressure sensor is sealed at the cylinder end of the pressure piston, and the pressure sensor is connected to the reader.

[0014] The beneficial effects are as follows: 1. The present invention can provide a multi-station synchronous wear test function, and can add or subtract stations as needed. The connecting slide rods are spliced ​​with each other, and the thrust slides are also spliced ​​with each other to provide synchronous drive. Each group of rotating sleeves is set with a belt or chain synchronous transmission connection, so that different stations can be driven synchronously. The assembly and operation are convenient. The transmission motor is started to drive the rotating sleeve to rotate, and the rotating sleeve drives the hexagonal shaft to rotate, so that the brake disc can be continuously rotated synchronously.

[0015] 2. A support frame is set up to control the bearing structure of the brake disc. The push control motor is started to drive the push control screw to rotate. The push control screw drives the drive slide frame to move, and drives each group of connecting slide rods to move. After the trapezoidal block loses the inclined support, the support frame naturally drops and separates from the brake disc. Conversely, the brake disc can be lifted, which is convenient for installing and removing the brake disc. In addition, the secondary shaft is inserted into the flange seat for connection to increase stability.

[0016] 3. Setting a pressure piston can provide a separate driving effect for each group of assembly seats. Use each group of thrust slides to synchronously move and extrude the pressure piston, input the hydraulic oil in the pressure piston into the side piston, move each group of moving slides toward the brake disc, and at the same time, bring the wear block close to the brake disc to perform a friction test. Finally, remove each group of brake discs to detect the degree of wear of the brake discs. Monitoring the pressure of the pressure piston can also determine the degree of wear. Using the same power to drive each group of pressure pistons can keep the driving pressure provided consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the present invention is shown; Figure 2 The isometric structural diagram of an embodiment of the present invention is shown; Figure 3 A schematic diagram of the driving structure of an embodiment of the present invention is shown; Figure 4 The embodiment of the present invention is shown Figure 3 A schematic diagram of the structure from another angle; Figure 5 A schematic diagram of the assembly structure of an embodiment of the present invention is shown; Figure 6 The embodiment of the present invention is shown Figure 5 A schematic diagram of the structure from another angle; Figure 7 The embodiment of the present invention is shown Figure 5 Schematic diagram of the structure after the brake disc is removed; Figure 8 A schematic diagram of the assembly structure of the wear block in the embodiment of the present invention is shown; Fig. 9The embodiment of the present invention is shown Figure 8 Another angle diagram of the structure.

[0018] Reference numerals list 1. Transmission device; 101. Push control screw; 102. Push control motor; 103. Drive slide frame; 2. Transmission motor; 3. Central control electric cylinder; 4. Assembly seat; 401. Vertical guide rod; 402. Middle slide bar; 403. Connecting slide bar; 404. Slide groove row; 405. Thrust slide; 5. Front assembly frame; 501. Secondary shaft; 502. Rotating sleeve; 503. Flange pile; 6. Rear assembly frame; 601. Screw slide; 602. Alignment screw; 603. Alignment motor; 604. Moving rotating frame; 605. Rotating sleeve; 606. Hexagonal shaft; 607. Flange seat; 7. Support frame; 701. Trapezoidal block; 8. Test seat; 801. Side piston; 802. Moving slide block; 803. Mounting frame; 804. Spring pile; 9. Wear block; 10. Pressure piston; 11. Reader. DETAILED DESCRIPTION

[0019] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention.

[0020] Example 1: Please refer to the attached drawings in the specification. Figures 1 to 9 As shown: The present invention proposes a multi-station brake disc wear testing device, comprising: a transmission device 1, a transmission motor 2 is fixedly arranged on the top of the transmission device 1; a centralized control electric cylinder 3 is fixedly arranged on the rear side of the transmission device 1; an assembly seat 4 is fixedly arranged on the right side of the transmission device 1; a front assembly frame 5 is fixedly arranged on the upper front side of the assembly seat 4, and a secondary shaft 501 is rotatably arranged on the rear side of the top of the front assembly frame 5; a rear assembly frame 6 is fixedly arranged on the upper rear side of the assembly seat 4, a rotating sleeve 605 is rotatably arranged in the middle of the top of the assembly seat 4, a hexagonal shaft 606 is slidably arranged in the rotating sleeve 605, a flange seat 607 is fixedly arranged on the front end of the hexagonal shaft 606, and the flange seat 607 A circular groove is provided in the middle of the front end; the rear end of the secondary shaft 501 can be fitted and inserted in the circular groove in the middle of the front end of the flange seat 607; a support frame 7 is slidably arranged in the middle of the top of the assembly seat 4, and the top two sides of the support frame 7 are outwardly inclined card holder structures; a test seat 8 is fixedly arranged in the middle position of the front and rear sides of the top of the assembly seat 4, and a side piston 801 is fixedly arranged on the outside of the test seat 8, and a moving slider 802 is fixedly arranged on the telescopic end of the side piston 801; mounting frames 803 are fixedly arranged on the adjacent surfaces of the moving sliders 802 on both sides, and wear blocks 9 are slidably inserted in the mounting frames 803; a belt drive connection is arranged on the outside of the shaft end of the rotating sleeve 605 and the transmission motor 2.

[0021] Among them, a push-control screw 101 is rotatably arranged at the lower middle part of the transmission device 1, and a push-control motor 102 is fixedly arranged on one side of the middle part of the transmission device 1, and the push-control motor 102 is transmission-connected to the push-control screw 101; a driving slide frame 103 is slidingly arranged in the middle of the transmission device 1, and the left side of the driving slide frame 103 is threadedly connected to the push-control screw 101.

[0022] Among them, two groups of vertical guide rods 401 are fixedly set in the middle of the assembly seat 4, and the bottom of the support frame 7 is slidably connected to the vertical guide rods 401; an intermediate slide bar 402 is fixedly set in the middle of the assembly seat 4, and a connecting slide bar 403 is slidably set on the outside of the intermediate slide bar 402, and both ends of the connecting slide bar 403 are assembly structures, and the length of the connecting slide bar 403 is consistent with the assembly seat 4; the middle of the top of the connecting slide bar 403 is a slope transition structure with the left lower and the right higher; the connecting slide bar 403 is fixedly connected to the driving slide frame 103.

[0023] A trapezoidal block 701 is fixedly disposed at the rear bottom of the support frame 7 , and the inclined surface of the trapezoidal block 701 contacts the middle inclined surface transition structure connecting the slide rod 403 .

[0024] Among them, the external limiting sliding of the secondary shaft 501 is provided with a rotating sleeve 502, the rear end of the rotating sleeve 502 is integrally surrounded by a flange pile 503, and the outside of the secondary shaft 501 is provided with a spring at the front end of the rotating sleeve 502; the flange pile 503 can be inserted into the flange hole of the flange seat 607.

[0025] Among them, a screw slide 601 is fixedly arranged on the rear side of the rear assembly frame 6, a positioning screw 602 is rotatably arranged in the middle of the screw slide 601, an alignment motor 603 is fixedly arranged on the rear side of the screw slide 601, and the alignment motor 603 is transmission-connected to the alignment screw 602; a movable rotating frame 604 is slidably arranged in the screw slide 601, and the alignment screw 602 is threadedly connected to the alignment screw 602.

[0026] Among them, four groups of guide columns are integrally arranged at the outer corners of the movable slider 802, and the guide columns are slidably connected to the test seat 8; convex strips are arranged on both sides of the movable slider 802, and two groups of spring piles 804 are slidably arranged in the convex strips, and the outer ends of the spring piles 804 pass through the convex strips on both sides of the movable slider 802 and then a handle structure is arranged; the main body of the spring pile 804 is a T-shaped structure, the front end of the spring pile 804 passes through the mounting frame 803, and a spring is sleeved on the narrow side of the spring pile 804.

[0027] The two sides of the mounting frame 803 are corner structures, and the two sides of the wear block 9 are through-slot structures that match the mounting frame 803 ; the wear block 9 is provided with four groups of slots aligned with the spring pile 804 near the spring pile 804 .

[0028] Among them, a slide groove row 404 is fixedly arranged on the rear side of the assembly seat 4, and a thrust slide 405 is slidably arranged outside the slide groove row 404, and the length of the thrust slide 405 is consistent with the assembly seat 4; a pressure piston 10 is fixedly arranged on the rear side of the transmission device 1, and the sliding part of the thrust slide 405 is fixedly connected to the pressure piston 10, and the thrust slide 405 is fixedly connected to the telescopic end of the centralized control electric cylinder 3; the cylinder end of the pressure piston 10 is connected to the two groups of side pistons 801; a reader 11 is arranged on the top of the assembly seat 4; a pressure sensor is sealed at the cylinder end of the pressure piston 10, and the pressure sensor is connected to the reader 11.

[0029] Each driving part is controlled by remote control; like Figure 1-7 As shown, the stations of the test device can be spliced ​​and increased, and adjusted according to the number of tests, generally 2-4 groups are used to ensure accuracy; each group of connecting slide bars 403 and each group of thrust slides 405 are spliced ​​together to provide synchronous drive, and each group of rotating sleeves 605 is provided with a belt or chain synchronous transmission connection; Wear blocks 9 were made of different materials to conduct wear tests; Start the push control motor 102 to drive the push control screw 101 to rotate, and the push control screw 101 drives the driving slide frame 103 to move, driving each group of connecting slide rods 403 to move, and the support frame 7 naturally drops and separates from the brake disc after the trapezoidal block 701 loses the inclined support; start the transmission motor 2 to drive the rotating sleeve 605 to rotate, and the rotating sleeve 605 drives the hexagonal shaft 606 to rotate, so that the brake disc can be continuously rotated; start the centralized control electric cylinder 3 to drive the thrust slide 405 to move, and each group of thrust slides 405 synchronously moves to squeeze the pressure piston 10, and the hydraulic oil in the pressure piston 10 is input into the side piston 801, and each group of moving slide blocks 802 is moved toward the brake disc, and at the same time, the wear block 9 is brought close to the brake disc to perform a friction test, and finally each group of brake discs can be removed to detect the wear degree of the brake disc; The readout device 11 can monitor the pressure, and a decrease in the pressure value indicates an increase in the degree of wear.

[0030] Embodiment 2: On the basis of Embodiment 1, when the brake disc needs to be replaced, the brake disc is placed above the support frame 7, and the support frame 7 is used to support the brake disc, and the rotating sleeve 502 is loosened. The rotating sleeve 502 is reset by the spring, and the flange pile 503 is passed through the assembly hole of the brake disc, and then the alignment motor 603 is started to drive the alignment screw 602 to rotate, and the alignment screw 602 is used to drive the movable rotating frame 604 to move, and the hexagonal shaft 606 is pushed to move, and the flange seat 607 is moved toward the brake disc. During this period, the angle of the brake disc is manually adjusted so that the flange pile 503 is inserted into the flange hole of the flange seat 607 to achieve alignment, and ensure that the hexagonal shaft 606 can drive the brake disc to rotate when it rotates; the support frame 7 will not affect the rotation of the brake disc after it is lowered; Conversely, the movable connecting slide rod 403 can also push up the trapezoidal block 701, and the support frame 7 naturally rises to carry the brake disc for easy disassembly.

[0031] Embodiment 3: Based on embodiment 1, Figure 8-9 As shown, when installing or replacing the wear block 9, pull the handle outside the spring pile 804 to pull the spring pile 804 out of the slot of the wear block 9, and then pull the wear block 9 upward to complete the unlocking, and then replace it, test the wear blocks 9 of different materials, and conveniently obtain suitable brake materials.

[0032] Specific usage and function of this embodiment: In the present invention, when in use, according to the number of controls required, the corresponding assembly seat 4 is installed, and then the connecting slide bars 403 are spliced ​​together, and the thrust slides 405 are spliced ​​together to provide synchronous drive, and each group of rotating sleeves 605 is provided with a belt or chain synchronous transmission connection; different materials are used to make the wear block 9 to perform wear test; according to Figure 5-6 The state of the brake disc is firstly pulled open with the rotating sleeve 502, and then the brake disc is placed on the top of the support frame 7, and the support frame 7 is used to carry the brake disc, and the rotating sleeve 502 is loosened, and the rotating sleeve 502 is reset by the spring, and the flange pile 503 is passed through the assembly hole of the brake disc, and then the alignment motor 603 is started to drive the alignment screw 602 to rotate, and the alignment screw 602 is used to drive the movable rotating frame 604 to move, and the hexagonal shaft 606 is pushed to move, and the flange seat 607 is moved toward the brake disc. During this period, the angle of the brake disc is manually adjusted so that the flange pile 503 penetrates into the flange hole of the flange seat 607 to achieve alignment, and ensures that the hexagonal shaft 606 can drive the brake disc to rotate when it rotates; at the same time, the secondary shaft 501 is inserted into the flange seat 607 for connection to increase stability; The push control motor 102 is started to drive the push control screw 101 to rotate, and the push control screw 101 drives the driving slide frame 103 to move, and drives each group of connecting slide bars 403 to move. After the trapezoidal block 701 loses the inclined support, the support frame 7 naturally drops and separates from the brake disc; The transmission motor 2 is started to drive the rotating sleeve 605 to rotate, and the rotating sleeve 605 drives the hexagonal shaft 606 to rotate, so that the brake disc can be continuously rotated; Start the centralized control electric cylinder 3 to drive the thrust slide 405 to move, and each group of thrust slides 405 moves synchronously to squeeze the pressure piston 10, input the hydraulic oil in the pressure piston 10 into the side piston 801, move each group of moving slides 802 toward the brake disc, and at the same time, bring the wear block 9 close to the brake disc to perform a friction test, and finally remove each group of brake discs to detect the wear degree of the brake disc; the reader 11 can monitor the pressure, and a decrease in the pressure value indicates an increase in the wear degree; When the wear block 9 needs to be replaced, pull the handle outside the spring pile 804 to pull the spring pile 804 out of the slot of the wear block 9, and then pull the wear block 9 upward to complete the unlocking, and then it can be replaced and the wear blocks 9 of different materials can be tested to facilitate obtaining suitable brake materials.

Claims

1. A multi-station brake disc wear testing device, characterized in that: include: A transmission device (1), wherein a transmission motor (2) is fixedly arranged on the top of the transmission device (1); a centralized control electric cylinder (3) is fixedly arranged on the rear side of the transmission device (1); an assembly seat (4) is fixedly arranged on the right side of the transmission device (1); a front assembly frame (5) is fixedly arranged on the front upper side of the assembly seat (4), and a secondary shaft (501) is rotatably arranged on the rear side of the top of the front assembly frame (5); a rear assembly frame (6) is fixedly arranged on the rear upper side of the assembly seat (4); a rotating sleeve (605) is rotatably arranged in the middle of the top of the assembly seat (4), a hexagonal shaft (606) is slidably arranged in the rotating sleeve (605), a flange seat (607) is fixedly arranged at the front end of the hexagonal shaft (606), and a flange seat (607) is fixedly arranged in the front end of the flange seat (607). a circular groove is provided between the two ends of the secondary shaft (501); the rear end of the secondary shaft (501) can be inserted into the circular groove in the middle of the front end of the flange seat (607); a support frame (7) is slidably provided in the middle of the top of the assembly seat (4), and the top two sides of the support frame (7) are outwardly inclined card holder structures; a test seat (8) is fixedly provided in the middle of the front and rear sides of the top of the assembly seat (4), a side piston (801) is fixedly provided on the outside of the test seat (8), and a moving slider (802) is fixedly provided at the telescopic end of the side piston (801); a mounting frame (803) is fixedly provided on the adjacent surfaces of the moving sliders (802) on both sides, and a wear block (9) is slidably inserted in the mounting frame (803); a belt drive connection is arranged on the outside of the shaft end of the rotating sleeve (605) and the transmission motor (2).

2. A multi-station brake disc wear testing device as claimed in claim 1, characterized in that: A push control screw (101) is rotatably arranged at the lower middle portion of the transmission device (1); a push control motor (102) is fixedly arranged at one side of the middle portion of the transmission device (1); the push control motor (102) is drivingly connected to the push control screw (101); a driving slide frame (103) is slidably arranged at the middle portion of the transmission device (1); the left side of the driving slide frame (103) is threadedly connected to the push control screw (101).

3. A multi-station brake disc wear testing device as claimed in claim 2, characterized in that: Two groups of vertical guide rods (401) are fixedly arranged in the middle of the assembly seat (4), and the bottom of the support frame (7) is slidably connected to the vertical guide rods (401); an intermediate slide bar (402) is fixedly arranged in the middle of the assembly seat (4), and a connecting slide bar (403) is slidably arranged outside the intermediate slide bar (402), both ends of the connecting slide bar (403) are assembly structures, and the length of the connecting slide bar (403) is consistent with that of the assembly seat (4); the middle of the top of the connecting slide bar (403) is an inclined transition structure with a lower left side and a higher right side; the connecting slide bar (403) is fixedly connected to the driving slide frame (103).

4. A multi-station brake disc wear testing device as claimed in claim 3, characterized in that: A trapezoidal block (701) is fixedly arranged at the bottom of the rear side of the support frame (7), and the inclined surface of the trapezoidal block (701) is in contact with the intermediate inclined surface transition structure of the connecting slide rod (403).

5. A multi-station brake disc wear testing device as claimed in claim 1, characterized in that: The auxiliary shaft (501) is provided with a rotating sleeve (502) for limiting sliding outside, and a flange pile (503) is integrally provided around the rear end of the rotating sleeve (502). A spring is sleeved on the outside of the auxiliary shaft (501) at a position located at the front end of the rotating sleeve (502); the flange pile (503) can be inserted into the flange hole of the flange seat (607) in a fitting manner.

6. A multi-station brake disc wear testing device as claimed in claim 1, characterized in that: A lead screw slide (601) is fixedly arranged on the rear side of the rear assembly frame (6), a positioning lead screw (602) is rotatably arranged in the middle of the lead screw slide (601), an positioning motor (603) is fixedly arranged on the rear side of the lead screw slide (601), and the positioning motor (603) is drivingly connected to the positioning lead screw (602); a movable rotating frame (604) is slidably arranged in the lead screw slide (601), and the positioning lead screw (602) is threadedly connected to the positioning lead screw (602).

7. A multi-station brake disc wear testing device as claimed in claim 1, characterized in that: Four groups of guide columns are integrally arranged at the outer corners of the movable slider (802), and the guide columns are slidably connected to the test seat (8); convex strips are arranged on both sides of the movable slider (802), and two groups of spring piles (804) are slidably arranged in the convex strips, and the outer ends of the spring piles (804) pass through the convex strips on both sides of the movable slider (802) and are provided with a handle structure; the main body of the spring pile (804) is a T-shaped structure, the front end of the spring pile (804) passes through the mounting frame (803), and the narrow side of the spring pile (804) is sleeved with a spring.

8. A multi-station brake disc wear testing device as claimed in claim 7, characterized in that: Both sides of the mounting frame (803) are corner structures, and both sides of the wear block (9) are through-slot structures that match the mounting frame (803); and the wear block (9) is provided with four groups of slots aligned with the spring piles (804) at a position close to the spring piles (804).

9. A multi-station brake disc wear testing device as claimed in claim 1, characterized in that: A slide groove row (404) is fixedly arranged on the rear side of the assembly seat (4), a thrust slide bracket (405) is slidably arranged outside the slide groove row (404), and the length of the thrust slide bracket (405) is consistent with that of the assembly seat (4); a pressure piston (10) is fixedly arranged on the rear side of the transmission device (1), a sliding portion of the thrust slide bracket (405) is fixedly connected to the pressure piston (10), and the thrust slide bracket (405) is fixedly connected to the telescopic end of the centralized control electric cylinder (3); the cylinder end of the pressure piston (10) is connected to the two groups of side pistons (801); a reader (11) is arranged on the top of the assembly seat (4); a pressure sensor is sealed at the cylinder end of the pressure piston (10), and the pressure sensor is connected to the reader (11).

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