A brake pad grinding device

Abstract

The application provides a brake pad grinding device, which comprises a bottom plate, a clamping groove is formed in the top of the bottom plate, a support is arranged on one side of the bottom plate, a first telescopic cylinder is arranged on the support, a pressing seat is installed at the bottom end of the first telescopic cylinder and a sliding groove is formed in the bottom of the pressing seat, a plurality of pressing columns are slidingly installed in the sliding groove, a resisting rod is arranged on the two sides of each pressing column, and a spring is connected between the sliding groove and the resisting rod, a sliding frame is slidingly installed on the outer side of the pressing seat, a second telescopic cylinder is installed on the two sides of the sliding frame, a connecting block is arranged on the second telescopic cylinder, a grinding roller is rotatably installed between the connecting blocks, a lower pushing plate is installed on the two sides of the bottom of the sliding frame, the lower pushing plate can press down the resisting rod, an upper arch part is arranged above the grinding roller, and a driving mechanism can drive the sliding frame to move. The application can automatically control the pressing column at the corresponding position to avoid the pressing column, so that each pressing column can always press the position outside the grinding position, and the clamping force on the brake pad is improved.

Description

Technical Field

[0001] This invention relates to the field of brake pad processing technology, and more specifically to a brake pad grinding device. Background Technology

[0002] Newly manufactured brake pads may have fine burrs, unevenness, or an oxide layer on their surface. If these uneven areas are not polished, they will result in uneven contact area between the brake pads and the brake disc, causing the braking force to fluctuate. This can affect braking performance, increase braking distance, and pose a safety hazard, especially during emergency braking. Therefore, brake pads need to be polished during the manufacturing process to ensure effective contact with the brake disc and achieve optimal braking force.

[0003] Chinese patent CN112605741A discloses a pair grinding robot for brake pad inner and outer pairs, which ensures that the grinding texture and thickness of the inner and outer pairs of brake pads are consistent, and avoids abnormal conditions such as abnormal noise and vibration during braking.

[0004] Brake pads have a flat structure. The conventional clamping method is to clamp the brake pad from the edge. Since the entire surface of the brake pad needs to be polished during polishing, the height of the clamping structure cannot be higher than the thickness of the brake pad in order to avoid affecting the polishing. This results in the clamping force of the clamp on the brake pad being relatively weak. The brake pad is prone to vibration and bouncing during polishing, which affects the polishing effect. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention proposes a brake pad grinding device to solve the above problems.

[0006] The objective of this invention is achieved through the following technical solution: The present invention provides a brake pad grinding device, comprising: The base plate has a clamping groove on its top, and a bracket is provided on one side of the base plate. A first telescopic cylinder with its telescopic shaft facing downward is provided on the bracket above the clamping groove. The lower pressure seat is installed at the bottom end of the telescopic shaft of the first telescopic cylinder and has a sliding groove at the bottom; The pressing column is slidably installed in the sliding groove and multiple of them are arranged horizontally. The pressing column is provided with abutment rods on both sides and a spring is connected between the top end and the top wall of the sliding groove to provide elastic force to pull the pressing column upward. A sliding frame is slidably installed on the outside of the lower pressure seat along the arrangement direction of the pressing columns. A second telescopic cylinder is installed on each side of the sliding frame. The telescopic shaft end of the second telescopic cylinder faces downward and is provided with a connecting block. A grinding roller is rotatably installed between the two connecting blocks. The grinding roller is located below the pressing column. A first motor connected to the grinding roller is installed on one of the connecting blocks. A push plate is installed on each side of the bottom of the sliding frame above the abutment rod. The push plate can press down the abutment rod so that the bottom end of the pressing column is lower than the grinding roller. The push plate is provided with an upper arch at the position directly above the grinding roller. When the pressing column is located in the upper arch, it can be pulled up by a spring so that it can avoid the grinding roller. A drive mechanism that can drive the sliding frame to move.

[0007] Furthermore, an absorption chamber is provided inside the lower pressure seat above the sliding groove. The absorption chamber is connected to a negative pressure suction device via a pipe. The bottom wall of the absorption chamber has multiple sealing slides corresponding to each pressing column. The top of each pressing column is provided with a connecting pipe that slides through the corresponding sealing slide. The top of the connecting pipe is sealed, and a side opening is provided on its side wall near the top. When the pressing column is located in the upper arch, the side opening can enter the absorption chamber. An absorption channel is provided inside the pressing column, which extends to the bottom of the pressing column and communicates with the connecting pipe.

[0008] Furthermore, a pressing strip is provided at the bottom end of the pressing column, and the pressing strip is parallel to the grinding roller.

[0009] Furthermore, the bottom sides of the pressing strip are respectively provided with side suction ports that communicate with the absorption channel, and the openings of the two side suction ports on the same pressing strip are far apart from each other and tilted downwards.

[0010] Furthermore, the drive mechanism includes a second motor, a drive wheel, a driven wheel, a belt, and a rack. The rack is mounted on the top side of the sliding frame. The second motor is mounted on the lower pressure seat and has a drive wheel mounted on its output shaft end. The driven wheel is rotatably mounted on the side wall of the lower pressure seat and has a gear at one end that meshes with the rack. The belt is arranged around the outside of the drive wheel and the driven wheel.

[0011] Furthermore, an adjusting screw is threaded onto the base plate, one end of which is inserted into the clamping groove and rotatably connected to a clamping plate. A guide rod that slides through the base plate is provided on the side of the clamping plate near the adjusting screw.

[0012] Furthermore, each of the aforementioned abutments is rotatably fitted with a rotating sleeve.

[0013] As can be seen from the above technical solution, the present invention provides a brake pad grinding device: 1. The upper arch is always directly above the grinding roller as the sliding frame moves, and the pressing column directly above the grinding roller is pulled up by the spring to avoid the grinding roller. During the grinding process, only the pressing column in the upper arch area will avoid the grinding roller. The pressing columns outside the upper arch area are always pressed against the brake pad by the lower push plate. As the grinding roller moves, the pressing column at the corresponding position can be automatically controlled to avoid the grinding roller, so that each pressing column can always press against the position outside the grinding position, thereby improving the clamping force on the brake pad. 2. When the grinding roller moves directly under a certain pressing column, the pressing column will be located at the highest point of the upper arch and pulled up by the spring. At this time, the side opening of the corresponding connecting pipe can enter the absorption chamber, while the connecting pipes on other pressing columns will be retracted into the sealing slide and the side openings will be blocked. The negative pressure attraction will be transmitted by the negative pressure attraction device through the absorption chamber, side opening, connecting pipe, and absorption channel to the bottom end of the pressing column directly above the grinding roller, thereby absorbing the dust and debris generated by the grinding roller grinding the brake pads. As the grinding roller moves, the pressing column pulled up by the spring is always the pressing column above the grinding roller, and only the pressing column above the grinding roller can communicate with the absorption chamber, which is conducive to achieving concentrated attraction following the grinding roller and improving local attraction. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of the present invention; Figure 3 This is a cross-sectional view of the main structural schematic diagram of the present invention; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a cross-sectional view of the side view of the present invention. Figure 6 This is a top view of the base plate structure in this invention; Figure label: Base plate 1, clamping groove 11, bracket 12, first telescopic cylinder 13, adjusting screw 14, abutting plate 15, guide rod 16; Lower pressure seat 2, sliding groove 21, absorption chamber 22, pipe 221, sealing slide 222; Pressing column 3, push rod 31, rotating sleeve 311, spring 32, connecting tube 33, side port 331, absorption channel 34, pressing strip 35, side suction port 351; Sliding frame 4, second telescopic cylinder 41, connecting block 42, grinding roller 43, first motor 44, lower push plate 45, upper arch 451; Drive mechanism 5, second motor 51, drive wheel 52, driven wheel 53, gear 531, belt 54, rack 55. Detailed Implementation

[0016] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0017] like Figure 1-6 As shown, the brake pad grinding device provided in this embodiment includes a base plate 1, a lower pressure seat 2, a pressing column 3, a sliding frame 4, and a driving mechanism 5.

[0018] The top of the base plate 1 is provided with a clamping groove 11, the depth of which is less than the thickness of the brake pad. A bracket 12 is provided on one side of the base plate 1. A first telescopic cylinder 13 with its telescopic shaft facing downward is provided on the bracket 12 above the clamping groove 11. The first telescopic cylinder 13 can be a hydraulic cylinder.

[0019] Specifically, an adjusting screw 14 is threaded onto the base plate 1. One end of the adjusting screw 14 passes through the clamping groove 11 and is rotatably connected to a pressing plate 15. The pressing plate 15 slides against the clamping groove 11, and the height of the pressing plate 15 is adapted to the height of the clamping groove 11. A guide rod 16 that slides through the base plate 1 is provided on the side of the pressing plate 15 near the adjusting screw 14. By rotating the adjusting screw 14, the pressing plate 15 can be controlled to press the brake pad in the clamping groove 11. The guide rod 16 can provide guidance for the movement of the pressing plate 15.

[0020] The lower pressure seat 2 is installed at the bottom end of the telescopic shaft of the first telescopic cylinder 13 and has a sliding groove 21 at the bottom.

[0021] The pressing column 3 is slidably installed in the sliding groove 21 and multiple pressing columns 3 are arranged horizontally. Each pressing column 3 can slide independently up and down in the sliding groove 21. A stop bar 31 is provided on both sides of the pressing column 3. A spring 32 is connected between the top of the pressing column 3 and the top wall of the sliding groove 21. The spring 32 can provide elastic force to pull the pressing column 3 upward.

[0022] The sliding frame 4 is slidably installed on the outside of the lower pressure seat 2 along the arrangement direction of the pressing columns 3. Specifically, the lower pressure seat 2 has grooves on both sides, and the inner walls of both sides of the sliding frame 4 are provided with slide bars that are slidably connected to the grooves. The two sides of the sliding frame 4 are respectively equipped with second telescopic cylinders 41 via support rods. The second telescopic cylinders 41 can be hydraulic cylinders. The telescopic shaft end of the second telescopic cylinder 41 faces downward and is provided with a connecting block 42. A grinding roller 43 is rotatably installed between the two connecting blocks 42. The grinding roller 43 is located below the pressing column 3. A first motor 44 that is drively connected to the grinding roller 43 is installed on one of the connecting blocks 42. Specifically, the first motor 44 is fixedly installed on the connecting block 42, and its output shaft end is drively connected to the end of the grinding roller 43. The bottom two sides of the sliding frame 4 are respectively equipped with push plates 45 above the abutment rod 31. The push plates 45 can press down the abutment rod 31 to push the pressing column 3 towards The sliding groove 21 is pushed down, and the bottom height of the pressing column 3 is lower than that of the grinding roller 43. When the first telescopic cylinder 13 drives the lower pressing seat 2 to move down, the lower push plate 45 will generate a pushing force on the abutment rod 31 to prevent the pressing column 3 from being pressed into the sliding groove 21 by the reaction force. This allows each pressing column 3 to press against the top surface of the brake pad from top to bottom. The lower push plate 45 is provided with an upper arch 451 at a position directly above the grinding roller 43. The upper arch 451 is integrally formed with the lower push plate 45 and smoothly connected. The bottom side height of the upper arch 451 is higher than that of the lower push plate 45. When the sliding frame 4 moves, each pressing column 3 will enter the area of ​​the upper arch 451 in sequence. When the pressing column 3 is located in the upper arch 451, it can be pulled up by the spring 32, so that the abutment rod 31 abuts against the bottom side of the upper arch 451. As a result, the bottom height of the pressing column 3 will be higher than the height of the grinding roller 43, thus avoiding the grinding roller 43. It should be noted that when the pressing column 3 is in the upper arch 451 area, there is a certain gap between its bottom end and the grinding roller 43, so as to provide space for the second telescopic cylinder 41 to control the grinding roller 43 to move up and down to adjust the grinding depth.

[0023] The drive mechanism 5 drives the sliding frame 4 to move. Specifically, the drive mechanism 5 includes a second motor 51, a drive wheel 52, a driven wheel 53, a belt 54, and a rack 55. The rack 55 is mounted on the top side of the sliding frame 4. The second motor 51 is mounted on the lower pressure seat 2, and the drive wheel 52 is mounted on its output shaft. The driven wheel 53 is rotatably mounted on the side wall of the lower pressure seat 2, and one end of it is provided with a gear 531 that meshes with the rack 55. The belt 54 is arranged around the outside of the drive wheel 52 and the driven wheel 53. When the second motor 51 is started, the gear 531 is driven to rotate through the belt 54, which in turn drives the sliding frame 4 to move through the rack 55.

[0024] In practical use, the brake pad to be ground is first placed in the clamping groove 11, and the adjusting screw 14 is rotated to clamp the abutment plate 15 with the brake pad. The first telescopic cylinder 13 drives the lower pressure seat 2 to move downward until each pressing column 3 presses against the top surface of the brake pad. The first motor 44 drives the grinding roller 43 to rotate, and the second telescopic cylinder 41 is controlled to extend and retract to make the grinding roller 43 close to the surface of the brake pad for grinding. The drive mechanism 5 controls the sliding frame 4 to move back and forth along the arrangement direction of the pressing columns 3 to drive the grinding roller 43 to move and grind the surface of the brake pad. During the movement, the upper arch 4 As the sliding frame 4 moves, 51 is always directly above the grinding roller 43, and the pressing post 3 directly above the grinding roller 43 is pulled up by the spring 32 to avoid the grinding roller 43. During the grinding process, only the pressing post 3 in the area of ​​the upper arch 451 will avoid the grinding roller 43. The pressing post 3 outside the area of ​​the upper arch 451 is always pressed against the brake pad by the lower push plate 45. As the grinding roller 43 moves, it can automatically control the pressing post 3 at the corresponding position to avoid the grinding roller 43, so that each pressing post 3 can always press against the position outside the grinding position, thereby improving the clamping force on the brake pad.

[0025] In one embodiment, an absorption chamber 22 is provided inside the lower pressure seat 2 above the sliding groove 21. The absorption chamber 22 is externally connected to a negative pressure suction device through a pipe 221. The negative pressure suction device can be a conventional device of the prior art, and its specific structure will not be described in detail. The bottom wall of the absorption chamber 22 is provided with multiple sealing slides 222 above each pressing column 3. The top of each pressing column 3 is provided with a connecting pipe 33 that slides through the corresponding sealing slide 222. The inner wall of the sealing slide 222 is tightly fitted with the outer wall of the connecting pipe 33. The top of the connecting pipe 33 is sealed, and a side opening 331 is provided on its side wall near the top. When the grinding roller 43 moves directly below a pressing column 3, the pressing column 3 will be located at the highest point of the upper arch 451 and pulled up by the spring 32. At this time, the side opening 33 of the corresponding connecting pipe 33 is opened. 31 can enter the absorption chamber 22, while the connecting pipes 33 on other pressing columns 3 will be retracted into the sealed slide 222 and the side opening 331 will be blocked. The pressing column 3 is provided with an absorption channel 34, which extends to the bottom end of the pressing column 3 and is connected to the connecting pipe 33. The negative pressure attraction will be transmitted by the negative pressure attraction device through the absorption chamber 22, the side opening 331, the connecting pipe 33, and the absorption channel 34 to the bottom end of the pressing column 3 directly above the grinding roller 43, thereby absorbing the dust and debris generated by the grinding roller 43 grinding the brake pads. As the grinding roller 43 moves, the pressing column 3 pulled up by the spring 32 is always the pressing column 3 above the grinding roller 43, and only the pressing column 3 above the grinding roller 43 can be connected to the absorption chamber 22, which is conducive to achieving concentrated attraction following the grinding roller 43 and improving local attraction.

[0026] Preferably, a pressing strip 35 is provided at the bottom end of the pressing column 3. The pressing strip 35 is parallel to the grinding roller 43. The pressing strip 35 can increase the contact area with the brake pad, increase the contact range, and improve the clamping force.

[0027] Furthermore, the bottom sides of the pressing strip 35 are respectively provided with side suction ports 351 that communicate with the absorption channel 34. The openings of the two side suction ports 351 on the same pressing strip 35 are far apart from each other and tilted downwards. The two side suction ports 351 on the same pressing strip 35 can respectively attract the dust and debris generated on both sides of the grinding roller 43, thereby improving the dust absorption effect.

[0028] Preferably, each push rod 31 is rotatably fitted with a rotating sleeve 311, so that the push plate 45 can abut against the rotating sleeve 311, thereby reducing the moving resistance when the sliding frame 4 drives the push plate 45 to move.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A brake pad grinding device, characterized in that, include: The base plate has a clamping groove on its top, and a bracket is provided on one side of the base plate. A first telescopic cylinder with its telescopic shaft facing downward is provided on the bracket above the clamping groove. The lower pressure seat is installed at the bottom end of the telescopic shaft of the first telescopic cylinder and has a sliding groove at the bottom; The pressing column is slidably installed in the sliding groove and multiple of them are arranged horizontally. The pressing column is provided with abutment rods on both sides and a spring is connected between the top end and the top wall of the sliding groove to provide elastic force to pull the pressing column upward. A sliding frame is slidably installed on the outside of the lower pressure seat along the arrangement direction of the pressing columns. A second telescopic cylinder is installed on each side of the sliding frame. The telescopic shaft end of the second telescopic cylinder faces downward and is provided with a connecting block. A grinding roller is rotatably installed between the two connecting blocks. The grinding roller is located below the pressing column. A first motor connected to the grinding roller is installed on one of the connecting blocks. A push plate is installed on each side of the bottom of the sliding frame above the abutment rod. The push plate can press down the abutment rod so that the bottom end of the pressing column is lower than the grinding roller. The push plate is provided with an upper arch at the position directly above the grinding roller. When the pressing column is located in the upper arch, it can be pulled up by a spring so that it can avoid the grinding roller. A drive mechanism that can drive the sliding frame to move.

2. The brake pad grinding device according to claim 1, characterized in that, An absorption chamber is provided inside the lower pressure seat above the sliding groove. The absorption chamber is connected to a negative pressure suction device through a pipe. The bottom wall of the absorption chamber has multiple sealing slides above each pressing column. The top of each pressing column is provided with a connecting pipe that slides through the corresponding sealing slide. The top of the connecting pipe is sealed and a side opening is provided on its side wall near the top. When the pressing column is located in the upper arch, the side opening can enter the absorption chamber. An absorption channel is provided inside the pressing column. The absorption channel extends to the bottom of the pressing column and is connected to the connecting pipe.

3. The brake pad grinding device according to claim 2, characterized in that, The bottom end of the pressing column is provided with a pressing strip, which is parallel to the grinding roller.

4. The brake pad grinding device according to claim 3, characterized in that, The bottom sides of the pressing strip are respectively provided with side suction ports that communicate with the absorption channel, and the openings of the two side suction ports on the same pressing strip are far apart from each other and tilted downwards.

5. The brake pad grinding device according to claim 1, characterized in that, The drive mechanism includes a second motor, a drive wheel, a driven wheel, a belt, and a rack. The rack is mounted on the top side of the sliding frame. The second motor is mounted on the lower pressure seat and has a drive wheel mounted on its output shaft end. The driven wheel is rotatably mounted on the side wall of the lower pressure seat and has a gear at one end that meshes with the rack. The belt is wrapped around the outside of the drive wheel and the driven wheel.

6. The brake pad grinding device according to claim 1, characterized in that, An adjusting screw is threaded onto the base plate. One end of the adjusting screw passes through a clamping groove and is rotatably connected to a backing plate. A guide rod that slides through the base plate is provided on the side of the backing plate near the adjusting screw.

7. The brake pad grinding device according to claim 1, characterized in that, Each of the aforementioned abutments is rotatably fitted with a rotating sleeve.

Images