Brake pad grinding device

Abstract

The brake pad grinding device 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, and a first telescopic cylinder is arranged on the support; the lower pressing seat is mounted at the bottom end of the first telescopic cylinder and is provided with a sliding groove; the multiple pressing columns are slidably installed in the sliding grooves and arrayed, abutting rods are arranged on the two sides of the pressing columns, and springs are connected with the sliding grooves. The sliding frame is slidably installed on the outer side of the downward pressing seat, second telescopic cylinders are installed on the two sides of the sliding frame, the second telescopic cylinders are provided with connecting blocks, a polishing roller is rotatably installed between the connecting blocks, downward pushing plates are installed on the two sides of the bottom of the sliding frame and can press the abutting rods downwards, and the portions, located over the polishing roller, of the downward pushing plates are provided with upward arch parts; the driving mechanism can drive the sliding frame to move. According to the brake pad grinding device, the pressing columns at the corresponding positions can be automatically controlled to avoid along with movement of the grinding roller, so that all the pressing columns can abut against the positions except the grinding position all the time, and the clamping force on a brake pad is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of brake pad processing, and in particular to a brake pad grinding device. Background Art

[0002] The surface of a newly processed brake pad may have fine burrs, unevenness or an oxide layer. If not polished, these unevenness will cause uneven contact between the brake pad and the brake disc, which will cause the braking force to be strong or weak at times. Especially in emergency braking, it may affect the braking effect, increase the braking distance, and pose a safety hazard. Therefore, during the brake pad manufacturing process, the brake pad needs to be polished to ensure its effective contact with the brake disc to obtain the best braking force.

[0003] Chinese patent publication number CN112605741A discloses a robot for grinding inner and outer pairs of brake pads to ensure that the grinding patterns and thickness of the inner and outer pairs of brake pads remain consistent, avoiding abnormal conditions such as abnormal noise and vibration during braking.

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

[0005] In view of the deficiencies in the prior art, the present invention proposes a brake pad grinding device to solve the above problems.

[0006] The purpose of the present invention is achieved through the following technical solutions: The present invention provides a brake pad grinding device, comprising: A bottom plate, a clamping groove is formed on the top of the bottom plate, a bracket is provided on one side of the bottom plate, and a first telescopic cylinder with a telescopic shaft facing downward is provided on the bracket above the clamping groove; A lower pressing seat, which is installed at the bottom end of the telescopic shaft of the first telescopic cylinder and has a sliding groove at the bottom; A plurality of pressing columns are arranged laterally and are slidably mounted in the sliding groove. A push rod is provided on both sides of the pressing column, 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. Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. A driving mechanism is capable of driving the sliding frame to move.

[0007] Furthermore, an absorption chamber is provided inside the lower pressure seat above the sliding groove, and the absorption chamber is connected to an external negative pressure suction device through a pipeline. A plurality of sealed slideways are provided on the bottom wall of the absorption chamber corresponding to the top of each pressing column, and a connecting tube that slides through the corresponding sealed slideway is provided at the top of each pressing column. The top of the connecting tube is sealed and a side opening is provided on the side wall near the top. When the pressing column is located at the upper arch part, the side opening can enter the absorption chamber. An absorption channel is provided in the pressing column, and the absorption channel passes through to the bottom end of the pressing column and is connected to the connecting tube.

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

[0009] Furthermore, side suction ports connected to the absorption channel are respectively provided on both sides of the bottom of the pressing strip, and the openings of the two side suction ports on the same pressing strip are away from each other and inclined downward.

[0010] Furthermore, the driving mechanism includes a second motor, a driving wheel, a driven wheel, a belt and a rack, the rack is installed on the top side of the sliding frame, the second motor is installed on the lower pressure seat and the driving wheel is installed on the output shaft end of the second motor, the driven wheel is rotatably installed on the side wall of the lower pressure seat and one end of the driven wheel is provided with a gear meshing with the rack, and the belt is arranged around the outside of the driving wheel and the driven wheel.

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

[0012] Furthermore, each of the support rods is rotatably sleeved with a rotating sleeve.

[0013] From the above technical solution, it can be seen that 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, while the pressing columns outside the upper arch area are always in a state of being pressed against the brake pad by the lower push plate. Moreover, as the grinding roller moves, the pressing columns in the corresponding position can be automatically controlled to avoid, so that each pressing column can always press against the position other than the grinding position, thereby improving the clamping force on the brake pad; 2. When the grinding roller moves to the bottom of 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, and the connecting pipes on other pressing columns will be collected in 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, the side opening, the connecting pipe, and the 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 pad. 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 be connected to the absorption chamber, which is conducive to achieving centralized attraction following the grinding roller and improving local attraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the main structure of the present invention; Figure 3 A cross-sectional view of a schematic diagram of the main structure of the present invention; Figure 4 for Figure 3 A partial enlarged view of point A in the middle; Figure 5 is a cross-sectional view of a side structural schematic diagram of the present invention; Figure 6 Schematic diagram of the top structure of the bottom plate of the present invention; Reference numerals: Base plate 1, clamping groove 11, bracket 12, first telescopic cylinder 13, adjusting screw 14, abutting plate 15, guide rod 16; Lower pressing seat 2, sliding groove 21, absorption chamber 22, pipeline 221, sealing slideway 222; Pressing column 3, push rod 31, rotating sleeve 311, spring 32, connecting tube 33, side opening 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; Driving mechanism 5 , second motor 51 , driving wheel 52 , driven wheel 53 , gear 531 , belt 54 , rack 55 . DETAILED DESCRIPTION

[0016] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0017] like Figure 1-6 As shown, a 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] A clamping groove 11 is provided at the top of the base plate 1. The depth of the clamping groove 11 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 a telescopic axis 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 threadedly connected to the base plate 1, one end of the adjusting screw 14 is inserted into the clamping groove 11 and is rotatably connected to a clamping plate 15, the clamping plate 15 slides in contact with the clamping groove 11, and the height of the clamping plate 15 is adapted to the height of the clamping groove 11, and a guide rod 16 that slides through the base plate 1 is provided on the side of the clamping plate 15 close to the adjusting screw 14. By rotating the adjusting screw 14, the clamping plate 15 can be controlled to clamp the brake pad in the clamping groove 11, and the guide rod 16 can provide guidance for the movement of the clamping plate 15.

[0020] The lower pressing seat 2 is mounted on 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 can be installed in the sliding groove 21 so as to slide up and down and multiple pressing columns 3 are arranged horizontally. Each pressing column 3 can slide up and down in the sliding groove 21 independently. A push rod 31 is provided on both sides of the pressing column 3. A spring 32 is connected between the top end 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 outer side of the lower pressure seat 2 along the arrangement direction of the pressing columns 3. Specifically, slide grooves are opened on both sides of the lower pressure seat 2, and slide bars slidably connected to the slide grooves are provided on the inner walls of the two sides of the sliding frame 4. A second telescopic cylinder 41 is installed on both sides of the sliding frame 4 through a support rod. The second telescopic cylinder 41 can be a hydraulic cylinder. The telescopic shaft end of the second telescopic cylinder 41 is facing 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, and one of the connecting blocks 42 is provided with a first motor 44 that is transmission-connected to the grinding roller 43. Specifically, the first motor 44 is fixedly installed on the connecting block 42, and its output shaft end is transmission-connected to the end of the grinding roller 43. Lower push plates 45 are respectively installed on both sides of the bottom of the sliding frame 4 on the push rod 31. The lower push plate 45 can press the push rod 31 downward to move the pressing column 3 to When the first telescopic cylinder 13 drives the lower pressure seat 2 to move downward, the lower push plate 45 will generate a thrust on the push rod 31 to prevent the push rod 3 from being pressed into the sliding groove 21 by the reaction force, so that each push rod 3 can press the top surface of the brake pad from top to bottom. It should be noted that when the pressing column 3 is in the upper arch 451 area, there is a certain distance between its bottom end and the grinding roller 43 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 is capable of driving the sliding frame 4 to move. Specifically, the drive mechanism 5 includes a second motor 51, a driving wheel 52, a driven wheel 53, a belt 54, and a rack 55. The rack 55 is mounted on one side of the top of the sliding frame 4. The second motor 51 is mounted on the lower press seat 2, and the driving wheel 52 is mounted on the output shaft end of the second motor 51. The driven wheel 53 is rotatably mounted on the side wall of the lower press seat 2, and one end of the driven wheel 53 is provided with a gear 531 that meshes with the rack 55. The belt 54 is arranged around the outside of the driving wheel 52 and the driven wheel 53. When the second motor 51 is started, the gear 531 is rotated via the belt 54, and the rack 55 drives the sliding frame 4 to move.

[0024] During specific use, first place the brake pad to be ground in the clamping groove 11, and rotate the adjusting screw 14 to clamp the clamping plate 15 and the brake pad. Drive the lower pressure seat 2 downward through the first telescopic cylinder 13 until each pressing column 3 presses the top surface of the brake pad tightly. Drive the grinding roller 43 to rotate through the first motor 44, and control the second telescopic cylinder 41 to extend and retract to make the grinding roller 43 close to the surface of the brake pad for grinding. The driving mechanism 5 controls the sliding frame 4 to move back and forth along the arrangement direction of the pressing column 3 to drive the grinding roller 43 to move and grind on the surface of the brake pad. During the movement, the upper arch 4 51 is always directly above the grinding roller 43 as the sliding frame 4 moves, and the pressing column 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 column 3 in the upper arch 451 area will avoid the grinding roller 43. The pressing columns 3 outside the upper arch 451 area are always in a state of being pressed against the brake pad by the lower push plate 45, and as the grinding roller 43 moves, the pressing columns 3 at the corresponding positions can be automatically controlled to avoid, so that each pressing column 3 can always press against the position other than 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 pressing seat 2 above the sliding groove 21. The absorption chamber 22 is connected to an external negative pressure suction device through a pipe 221. The negative pressure suction device can use conventional equipment in the prior art, and its specific structure will not be described in detail. A plurality of sealing slideways 222 are provided on the bottom wall of the absorption chamber 22 corresponding to each pressing column 3. The top of each pressing column 3 is provided with a connecting tube 33 that slides through the corresponding sealing slideway 222. The inner wall of the sealing slideway 222 fits tightly with the outer wall of the connecting tube 33. The top of the connecting tube 33 is sealed and a side opening 331 is provided on the side wall near the top. When the grinding roller 43 moves to the bottom of 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 331 of the corresponding connecting tube 33 31 can enter the absorption chamber 22, while the connecting tubes 33 on other pressing columns 3 will be received in the sealing slide 222 and the side opening 331 will be blocked. An absorption channel 34 is provided in the pressing column 3, and the absorption channel 34 passes through to the bottom end of the pressing column 3 and is connected with the connecting tube 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 tube 33, and the absorption channel 34 to the bottom end of the pressing column 3 just above the grinding roller 43, thereby absorbing the dust and debris generated by the grinding roller 43 grinding the brake pad. 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 with the absorption chamber 22, which is conducive to achieving centralized 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 , and the pressing strip 35 is parallel to the grinding roller 43 . The pressing strip 35 can increase the contact surface with the brake pad, enlarge the abutment range, and improve the clamping force.

[0027] Furthermore, side suction ports 351 connected to the absorption channel 34 are respectively provided on both sides of the bottom of the pressing strip 35. The openings of the two side suction ports 351 on the same pressing strip 35 are away from each other and inclined downward. The two side suction ports 351 on the same pressing strip 35 can respectively attract the smoke and dust debris generated on both sides of the grinding roller 43, thereby improving the dust absorption effect.

[0028] Preferably, a rotating sleeve 311 is rotatably sleeved on each push rod 31 , so that the lower push plate 45 can abut against the rotating sleeve 311 , and when the sliding frame 4 drives the lower push plate 45 to move, the movement resistance can be reduced.

[0029] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A brake pad grinding device, characterized in that: include: A bottom plate, a clamping groove is formed on the top of the bottom plate, a bracket is provided on one side of the bottom plate, and a first telescopic cylinder with a telescopic shaft facing downward is provided on the bracket above the clamping groove; A lower pressing seat, which is installed at the bottom end of the telescopic shaft of the first telescopic cylinder and has a sliding groove at the bottom; A plurality of pressing columns are arranged laterally and are slidably mounted in the sliding groove. A push rod is provided on both sides of the pressing column, 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. Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. A driving mechanism is capable of driving 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, and the absorption chamber is connected to an external negative pressure suction device through a pipeline. A plurality of sealed slideways are provided on the bottom wall of the absorption chamber corresponding to the top of each pressing column. The top of each pressing column is provided with a connecting tube that slides through the corresponding sealed slideway. The top of the connecting tube is sealed and a side opening is provided on the side wall near the top. When the pressing column is located at the upper arch part, the side opening can enter the absorption chamber. An absorption channel is provided in the pressing column, and the absorption channel passes through to the bottom end of the pressing column and is connected to the connecting tube.

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, and the pressing strip is parallel to the grinding roller.

4. The brake pad grinding device according to claim 3, characterized in that: Side suction ports communicated with the absorption channel are respectively provided on both sides of the bottom of the pressing strip, and the openings of the two side suction ports on the same pressing strip are away from each other and inclined downward.

5. The brake pad grinding device according to claim 1, characterized in that: The driving mechanism includes a second motor, a driving wheel, a driven wheel, a belt and a rack. The rack is installed on the top side of the sliding frame. The second motor is installed on the lower pressure seat and the driving wheel is installed on the output shaft end of the second motor. The driven wheel is rotatably installed on the side wall of the lower pressure seat and one end of the driven wheel is provided with a gear meshing with the rack. The belt is arranged around the outside of the driving wheel and the driven wheel.

6. The brake pad grinding device according to claim 1, characterized in that: An adjusting screw is threadedly connected to the bottom plate, one end of the adjusting screw is inserted into the clamping groove and is rotatably connected to a clamping plate, and a guide rod that slides through the bottom plate is provided on one side of the clamping plate close to the adjusting screw.

7. The brake pad grinding device according to claim 1, characterized in that: A rotating sleeve is rotatably sleeved on each of the support rods.

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