阅读说明：本技术 一种刹车片加工工艺 (Brake pad processing technology ) 是由 李燕莉 金正良 田中伟 于 2021-09-02 设计创作，主要内容包括：本发明公开了一种刹车片加工工艺,包括以下步骤：S1、先通过切换组件控制下转盘组件转至初始位置,将刹车片放置在夹持组件内,并由夹持组件夹紧固定；再通过切换组件控制下转盘组件转至打磨位置；S2、调整夹持组件的位置,使刹车片与下转盘组件中夹具盘的旋转中心的距离和刹车片使用时的摩擦半径相同；S3、控制动力组件带动打磨组件和下转盘组件同时反向转动,实现刹车片的打磨；S4、刹车片打磨结束后,首先控制动力组件停止工作,然后控制下转盘组件带动刹车片向下运动,接着控制切换组件带动下转盘组件转至初始位置,最后控制夹持组件松开,人工将刹车片取下；该刹车片加工工艺不仅操作简单,而且刹车片打磨效率高、打磨效果好。(The invention discloses a brake pad processing technology, which comprises the following steps: s1, firstly, controlling the lower turntable assembly to rotate to an initial position through the switching assembly, placing the brake pad in the clamping assembly, and clamping and fixing the brake pad by the clamping assembly; then the lower turntable component is controlled to rotate to the polishing position through the switching component; s2, adjusting the position of the clamping assembly to ensure that the distance between the brake pad and the rotating center of the clamp disc in the lower disc assembly is the same as the friction radius of the brake pad when in use; s3, controlling the power assembly to drive the grinding assembly and the lower rotary disc assembly to rotate reversely at the same time, and grinding the brake pad; s4, after the polishing of the brake pad is finished, firstly controlling the power assembly to stop working, then controlling the lower disc assembly to drive the brake pad to move downwards, then controlling the switching assembly to drive the lower disc assembly to rotate to an initial position, finally controlling the clamping assembly to loosen, and manually taking down the brake pad; the brake pad machining process is simple to operate, and the brake pad is high in polishing efficiency and good in polishing effect.)

1. A brake pad machining process uses grinding equipment, and is characterized in that the grinding equipment comprises a bottom plate, a vertical shaft is arranged on the bottom plate, a lower disc assembly is rotatably connected onto the vertical shaft and comprises a plurality of clamping assemblies, and the clamping assemblies are used for clamping a brake pad; the vertical shaft is provided with a grinding assembly above the lower rotary disc assembly, and the bottom plate is provided with a power assembly for driving the grinding assembly and the lower rotary disc assembly to rotate reversely and a switching assembly for driving the lower rotary disc assembly to switch working positions; the processing technology of the brake pad comprises the following steps:

s1, firstly, controlling the lower turntable assembly to rotate to an initial position through the switching assembly, placing the brake pad in the clamping assembly, and clamping and fixing the brake pad by the clamping assembly; then the lower turntable assembly is controlled to rotate to a polishing position through the switching assembly, so that the polishing assembly is positioned right above the lower turntable assembly;

s2, adjusting the position of the clamping assembly to ensure that the distance between the brake pad and the rotating center of the clamp disc in the lower disc assembly is the same as the friction radius of the brake pad when in use;

s3, controlling the power assembly to drive the grinding assembly and the lower rotary disc assembly to rotate reversely at the same time, and controlling the lower rotary disc assembly to drive the brake pad to contact with a grinding disc in the grinding assembly to realize grinding of the brake pad;

s4, after the polishing of the brake pad is finished, the power assembly is controlled to stop working, the lower rotating disc assembly is controlled to drive the brake pad to move downwards, the switching assembly is controlled to drive the lower rotating disc assembly to rotate to the initial position, the clamping assembly is controlled to loosen, and the brake pad is manually taken down.

2. The brake pad machining process according to claim 1, wherein the lower disc assembly comprises a lower bevel gear, the lower bevel gear is rotatably connected to a vertical shaft, a horizontal lower transverse plate is fixedly arranged on the lower bevel gear, a lower driven sprocket is rotatably connected to one end of the lower transverse plate away from the vertical shaft, a lower rotating shaft is arranged in the lower driven sprocket, the lower rotating shaft and the lower driven sprocket are axially slidably connected and circumferentially fixedly connected, a first electric push rod for driving the lower rotating shaft to move up and down is arranged on the lower transverse plate, a retaining ring is fixedly arranged at the telescopic end of the first electric push rod, and the retaining ring is rotatably connected with the lower rotating shaft; the upper end of the lower rotating shaft is provided with a clamp disc, and the clamp disc and the lower rotating shaft are in coaxial positions; the center of anchor clamps dish is equipped with the circular slot, be equipped with the ring channel coaxial with the circular slot in the anchor clamps dish, be equipped with a plurality of radial pinion rack along the circumference interval uniformly in the anchor clamps dish, the up end of anchor clamps dish all is equipped with the notch that communicates with the ring channel in every radial pinion rack department, all is equipped with the connecting block that stretches out the notch on every radial pinion rack, all is equipped with the centre gripping subassembly on every connecting block.

3. The brake pad machining process according to claim 2, wherein the annular groove is rotatably connected with a gear ring, the gear ring is located below the radial toothed plates, each radial toothed plate in the annular groove is rotatably connected with an intermediate gear meshed with the radial toothed plate and the gear ring, a second electric push rod is fixedly arranged in the circular groove, the telescopic end of the second electric push rod is connected with one of the radial toothed plates, when the second electric push rod extends out, the radial toothed plates move in a scattered manner, and when the second electric push rod retracts, the radial toothed plates move in a gathered manner.

4. The brake pad processing technology of claim 2, wherein the clamping assembly comprises a clamping block arranged at the upper end of the connecting block, first clamping electric poles are fixedly arranged on two sides of the clamping block, a first clamping jaw is arranged at the telescopic end of each first clamping electric pole, the clamping block is provided with two second clamping electric poles side by side on the side far away from the circular groove, a second clamping jaw is arranged at the telescopic end of each second clamping electric pole, and when the clamping assembly clamps the brake pad, the first clamping electric pole and the second clamping electric poles shrink.

5. The brake pad processing technology of claim 2, wherein a shaft hole is formed in the lower driven sprocket, a limiting sliding groove is formed in the side wall of the shaft hole along the axial direction, and a limiting convex block located in the limiting sliding groove is fixedly arranged on the side wall of the lower rotating shaft.

6. The brake pad machining process according to claim 2, wherein the switching assembly comprises a third electric push rod, a convex plate is arranged at the end part, close to the vertical shaft, of the lower transverse plate, a shifting groove is formed in the convex plate, the third electric push rod is fixedly installed on the bottom plate, and a shifting column located in the shifting groove is arranged at the telescopic end of the third electric push rod; when third electric putter stretches out completely, lower diaphragm drives anchor clamps and coils vertical axle and rotate to under the subassembly of polishing, and when third electric putter contracts completely, lower diaphragm drives anchor clamps and coils vertical axle and rotate to initial position.

7. The brake pad machining process according to claim 2, wherein the grinding assembly comprises a grinding disc, an upper bevel gear is rotatably connected to the vertical shaft above the lower bevel gear, a support frame is arranged on the side surface of the vertical shaft, an upper transverse plate is arranged at the upper end of the support frame, the upper bevel gear is rotatably connected to the inside of the upper transverse plate, an upper rotating shaft is rotatably connected to one end of the upper transverse plate far away from the upper bevel gear, the grinding disc is fixedly arranged at the lower end of the upper rotating shaft, and a grinding block is arranged at the lower end of the grinding disc; when the clamp disc is located under the polishing assembly, the upper rotating shaft and the lower rotating shaft are located at the same axial position.

8. The brake pad processing technology of claim 7, wherein the power assembly comprises a first motor, the bottom plate is provided with a support table on the left side of a vertical shaft, the first motor is fixedly installed at the upper end of the support table, and an output shaft of the first motor is fixedly provided with a first bevel gear engaged with an upper bevel gear and a lower bevel gear; the lower end of the lower bevel gear is provided with a coaxial lower driving chain wheel, and a lower transmission chain is arranged between the lower driving chain wheel and the lower driven chain wheel; the upper end of the upper bevel gear is provided with an upper coaxial driving chain wheel, the upper end of the upper rotating shaft is provided with an upper driven chain wheel, and an upper transmission chain is arranged between the upper driving chain wheel and the upper driven chain wheel.

Technical Field

The invention relates to the technical field of brake pads, in particular to a brake pad processing technology.

Background

In the braking system of the automobile, a brake pad is the most critical safety part, and the quality of all braking effects plays a decisive role. The working principle of the brake mainly comes from friction, and the kinetic energy of the vehicle is converted into the heat energy after friction by using the friction between a brake pad and a brake drum and between a tire and the ground, so that the vehicle is stopped. After the brake block processing, the clutch blocks surface has unevenness's burr, if not polish to it and handle and just install on the vehicle, have certain risk, consequently add the processing of just polishing to the clutch blocks of man-hour, prior art center brake block is polished and is generally handled by the manual work, and is inefficient, and the surface of polishing is not enough level and smooth, and is not enough even to the radian of polishing also can not guarantee for the friction radian when installing the use, is not good with the adaptation effect of brake disc.

Disclosure of Invention

The invention aims to provide a brake pad processing technology which is simple to operate, high in brake pad grinding efficiency and good in grinding effect.

In order to achieve the purpose, the invention provides the following technical scheme: a brake pad machining process uses grinding equipment, the grinding equipment comprises a bottom plate, a vertical shaft is arranged on the bottom plate, a lower disc assembly is rotatably connected onto the vertical shaft, the lower disc assembly comprises a plurality of clamping assemblies, and the clamping assemblies are used for clamping a brake pad; the vertical shaft is provided with a grinding assembly above the lower rotary disc assembly, and the bottom plate is provided with a power assembly for driving the grinding assembly and the lower rotary disc assembly to rotate reversely and a switching assembly for driving the lower rotary disc assembly to switch working positions; the processing technology of the brake pad comprises the following steps:

s1, firstly, controlling the lower turntable assembly to rotate to an initial position through the switching assembly, placing the brake pad in the clamping assembly, and clamping and fixing the brake pad by the clamping assembly; then the lower turntable assembly is controlled to rotate to a polishing position through the switching assembly, so that the polishing assembly is positioned right above the lower turntable assembly;

s2, adjusting the position of the clamping assembly to ensure that the distance between the brake pad and the rotating center of the clamp disc in the lower disc assembly is the same as the friction radius of the brake pad when in use;

s3, controlling the power assembly to drive the grinding assembly and the lower rotary disc assembly to rotate reversely at the same time, and controlling the lower rotary disc assembly to drive the brake pad to contact with a grinding disc in the grinding assembly to realize grinding of the brake pad;

s4, after the polishing of the brake pad is finished, the power assembly is controlled to stop working, the lower rotating disc assembly is controlled to drive the brake pad to move downwards, the switching assembly is controlled to drive the lower rotating disc assembly to rotate to the initial position, the clamping assembly is controlled to loosen, and the brake pad is manually taken down.

Further, the lower bevel gear assembly comprises a lower bevel gear, the lower bevel gear is rotatably connected to a vertical shaft, a horizontal lower transverse plate is fixedly arranged on the lower bevel gear, one end, far away from the vertical shaft, of the lower transverse plate is rotatably connected with a lower driven chain wheel, a lower rotating shaft is arranged in the lower driven chain wheel, the lower rotating shaft and the lower driven chain wheel are axially slidably connected and circumferentially fixedly connected, a first electric push rod for driving the lower rotating shaft to move up and down is arranged on the lower transverse plate, a retaining ring is fixedly arranged at the telescopic end of the first electric push rod, and the retaining ring is rotatably connected with the lower rotating shaft; the upper end of the lower rotating shaft is provided with a clamp disc, and the clamp disc and the lower rotating shaft are in coaxial positions; the center of anchor clamps dish is equipped with the circular slot, be equipped with the ring channel coaxial with the circular slot in the anchor clamps dish, be equipped with a plurality of radial pinion rack along the circumference interval uniformly in the anchor clamps dish, the up end of anchor clamps dish all is equipped with the notch that communicates with the ring channel in every radial pinion rack department, all is equipped with the connecting block that stretches out the notch on every radial pinion rack, all is equipped with the centre gripping subassembly on every connecting block.

Further, the ring channel internal rotation is connected with the ring gear, the ring gear is located the below of radial pinion rack, every radial pinion rack department of the ring channel is all rotated and is connected with the intermediate gear with radial pinion rack and ring gear meshing, the circular slot internal fixation is equipped with second electric putter, second electric putter's flexible end is connected with one of them radial pinion rack, and when second electric putter stretched out, a plurality of radial pinion rack dispersion motion, and when second electric putter shrink, a plurality of radial pinion rack gathered together the motion.

Further, the centre gripping subassembly is including setting up the grip block in the connecting block upper end, the fixed first centre gripping pole that is equipped with in both sides of grip block, the flexible end of every first centre gripping pole all is equipped with first clamping jaw, the grip block is equipped with two second centre gripping poles side by side in the side of keeping away from the circular slot, and the flexible end of every second centre gripping pole all is equipped with the second clamping jaw, and it is regular to press from both sides the fastening of brake block at the centre gripping subassembly, and first centre gripping pole and second centre gripping pole shrink.

Further, be equipped with the shaft hole in the driven sprocket down, the lateral wall in shaft hole is equipped with spacing spout along the axial, the fixed spacing lug that is located spacing spout that is equipped with of lateral wall of pivot down.

Furthermore, the switching assembly comprises a third electric push rod, a convex plate is arranged at the end part of the lower transverse plate close to the vertical shaft, a shifting groove is formed in the convex plate, the third electric push rod is fixedly installed on the bottom plate, and a shifting column located in the shifting groove is arranged at the telescopic end of the third electric push rod; when third electric putter stretches out completely, lower diaphragm drives anchor clamps and coils vertical axle and rotate to under the subassembly of polishing, and when third electric putter contracts completely, lower diaphragm drives anchor clamps and coils vertical axle and rotate to initial position.

Further, the polishing assembly comprises a polishing disc, an upper bevel gear is rotatably connected to the upper portion of the vertical shaft above the lower bevel gear, a support frame is arranged on the side face of the vertical shaft, an upper transverse plate is arranged at the upper end of the support frame, the upper bevel gear is rotatably connected into the upper transverse plate, an upper rotating shaft is rotatably connected to one end, far away from the upper bevel gear, of the upper transverse plate, the polishing disc is fixedly arranged at the lower end of the upper rotating shaft, and a polishing block is arranged at the lower end of the polishing disc; when the clamp disc is located under the polishing assembly, the upper rotating shaft and the lower rotating shaft are located at the same axial position.

Further, the power assembly comprises a first motor, a support table is arranged on the left side of the vertical shaft of the bottom plate, the first motor is fixedly arranged at the upper end of the support table, and a first bevel gear meshed with the upper bevel gear and the lower bevel gear is fixedly arranged on an output shaft of the first motor; the lower end of the lower bevel gear is provided with a coaxial lower driving chain wheel, and a lower transmission chain is arranged between the lower driving chain wheel and the lower driven chain wheel; the upper end of the upper bevel gear is provided with an upper coaxial driving chain wheel, the upper end of the upper rotating shaft is provided with an upper driven chain wheel, and an upper transmission chain is arranged between the upper driving chain wheel and the upper driven chain wheel.

Advantageous effects

Compared with the prior art, the technical scheme of the invention has the following advantages:

1. the clamp disc and the polishing disc are rotated in opposite directions, so that the brake pad can be polished through equipment, labor is saved, and polishing efficiency can be improved by rotating in opposite directions;

2. by using the plurality of clamping assemblies, a plurality of brake pads can be polished at the same time, so that the efficiency is improved;

3. the clamp disc and the polishing disc which are parallel to each other are used, so that the polishing of the brake pad can be smoother and more uniform;

4. through the removal of a plurality of radial pinion racks of second electric putter control, the meshing of radial pinion rack of rethread, intermediate gear, ring gear for can drive a plurality of centre gripping subassemblies simultaneous movement, thereby change the centre gripping subassembly and the centre of rotation's of anchor clamps dish distance, thereby radian when can guaranteeing that the brake block is polished is the same with the friction radian when installing the use, and the brake block of the one-tenth output of messenger can be more suitable for.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;

FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1 in accordance with the present invention;

FIG. 5 is an enlarged view of the invention taken at I in FIG. 1

FIG. 6 is a cross-sectional view taken along line D-D of FIG. 5 in accordance with the present invention;

FIG. 7 is a top view of the clamp assembly of the present invention clamping a brake pad.

Detailed Description

Referring to fig. 1-7, a brake pad processing technology uses a grinding device, the grinding device includes a base plate 1, a vertical shaft 1a is arranged on the base plate 1, a lower disc assembly is rotatably connected to the vertical shaft 1a, the lower disc assembly includes a plurality of clamping assemblies, and the clamping assemblies are used for clamping a brake pad 001; the vertical shaft 1a is provided with a grinding assembly above the lower turntable assembly, and the bottom plate 1 is provided with a power assembly for driving the grinding assembly and the lower turntable assembly to rotate reversely and a switching assembly for driving the lower turntable assembly to switch working positions; the processing technology of the brake pad 001 comprises the following steps:

s1, firstly, controlling the lower turntable assembly to rotate to an initial position through the switching assembly, placing the brake pad 001 in the clamping assembly, and clamping and fixing the brake pad by the clamping assembly; then the lower turntable assembly is controlled to rotate to a polishing position through the switching assembly, so that the polishing assembly is positioned right above the lower turntable assembly;

s2, adjusting the position of the clamping assembly to ensure that the distance between the brake pad 001 and the rotating center of the clamp disc 6 in the lower disc assembly is the same as the friction radius of the brake pad 001 when in use;

s3, controlling the power assembly to drive the polishing assembly and the lower disc assembly to rotate reversely at the same time, and controlling the lower disc assembly to drive the brake pad 001 to be in contact with a polishing disc in the polishing assembly, so that polishing of the brake pad 001 is realized;

s4, after the polishing of the brake pad 001 is finished, firstly controlling the power assembly to stop working, then controlling the lower turntable assembly to drive the brake pad 001 to move downwards, then controlling the switching assembly to drive the lower turntable assembly to rotate to the initial position, finally controlling the clamping assembly to loosen, and manually taking down the brake pad 001.

The lower bevel gear assembly comprises a lower bevel gear 3b, the lower bevel gear 3b is rotatably connected to a vertical shaft 1a, a horizontal lower transverse plate 2 is fixedly arranged on the lower bevel gear 3b, one end, far away from the vertical shaft 1a, of the lower transverse plate 2 is rotatably connected with a lower driven sprocket 7, a lower rotating shaft 6a is arranged in the lower driven sprocket 7, the lower rotating shaft 6a is axially and slidably connected with the lower driven sprocket 7 and is fixedly connected in the circumferential direction, a first electric push rod 13 used for driving the lower rotating shaft 6a to move up and down is arranged on the lower transverse plate 2, a baffle ring 14 is fixedly arranged at the telescopic end of the first electric push rod 13, and the baffle ring 14 is rotatably connected with the lower rotating shaft 6 a; the upper end of the lower rotating shaft 6a is provided with a clamp disc 6, the clamp disc 6 and the lower rotating shaft 6a are in a coaxial position, a shaft hole 71 is formed in the lower driven sprocket 7, a limiting sliding groove 72 is formed in the side wall of the shaft hole 71 along the axial direction, and a limiting bump 11 positioned in the limiting sliding groove 72 is fixedly arranged on the side wall of the lower rotating shaft 6 a; the center of anchor clamps dish 6 is equipped with circular slot 62, be equipped with in the anchor clamps dish 6 with the coaxial ring channel 63 of circular slot 62, be equipped with a plurality of radial pinion rack 17b along the circumference interval uniformly in the anchor clamps dish 6, the up end of anchor clamps dish 6 all is equipped with the notch 61 that communicates with ring channel 63 in every radial pinion rack 17b department, all is equipped with the connecting block 17a who stretches out notch 61 on every radial pinion rack 17b, all is equipped with the centre gripping subassembly on every connecting block 17 a. The ring channel 63 internal rotation is connected with ring gear 16, ring gear 16 is located the below of radial pinion rack 17b, the internal every radial pinion rack 17b department of ring channel 63 all rotates and is connected with the intermediate gear 19b with radial pinion rack 17b and the meshing of ring gear 16, the circular slot 62 internal fixation is equipped with second electric putter 15, the flexible end of second electric putter 15 is connected with one of them radial pinion rack 17b, and when second electric putter 15 stretched out, a plurality of radial pinion rack 17b dispersion motion, when second electric putter 15 shrunk, a plurality of radial pinion rack 17b gathered together the motion.

The centre gripping subassembly is including setting up the grip block 18 in the upper end of connecting block 17a, the fixed first centre gripping pole 18b that is equipped with in both sides of grip block 18, every first centre gripping pole 18 b's flexible end all is equipped with first clamping jaw 182, grip block 18 is equipped with two second centre gripping poles 18a side by side in the side of keeping away from circular slot 62, and every second centre gripping pole 18 a's flexible end all is equipped with second clamping jaw 181, and it is regularly to press from both sides the fastening at the centre gripping subassembly with brake block 001, and first centre gripping pole 18b and the shrink of second centre gripping pole 18 a.

The switching assembly comprises a third electric push rod 20, a convex plate 2a1 is arranged at the end part of the lower transverse plate 2 close to the vertical shaft 1a, a shifting groove 2a is arranged in the convex plate 2a1, the third electric push rod 20 is fixedly arranged on the bottom plate 1, and a shifting column 20a positioned in the shifting groove 2a is arranged at the telescopic end of the third electric push rod 20; when third electric putter 20 stretches out completely, lower diaphragm 2 drives anchor clamps dish 6 and changes to under the subassembly of polishing around vertical axle 1a, and when third electric putter 20 contracts completely, lower diaphragm 2 drives anchor clamps dish 6 and changes to initial position around vertical axle 1 a.

The grinding assembly comprises a grinding disc 9, an upper bevel gear 3d is rotatably connected to the upper portion of the vertical shaft 1a above the lower bevel gear 3b, a support frame 3d1 is arranged on the side face of the vertical shaft 1a, an upper transverse plate 1b is arranged at the upper end of the support frame 3d1, the upper bevel gear 3d is rotatably connected into the upper transverse plate 1b, an upper rotating shaft 81 is rotatably connected to one end, far away from the upper bevel gear 3d, of the upper transverse plate 1b, the grinding disc 9 is fixedly arranged at the lower end of the upper rotating shaft 81, and a grinding block 10 is arranged at the lower end of the grinding disc 9; the upper spindle 81 is in a coaxial position with the lower spindle 6a when the clamp disc 6 is located directly below the sharpening assembly.

The power assembly comprises a first motor 4, a support table 3d2 is arranged on the left side of the vertical shaft 1a of the bottom plate 1, the first motor 4 is fixedly arranged at the upper end of a support table 3d2, and a first bevel gear 5 meshed with an upper bevel gear 3d and a lower bevel gear 3b is fixedly arranged on an output shaft of the first motor 4; the lower end of the lower bevel gear 3b is provided with a coaxial lower driving chain wheel 3a, and a lower transmission chain 12a is arranged between the lower driving chain wheel 3a and the lower driven chain wheel 7; the upper end of the upper bevel gear 3d is provided with a coaxial upper driving sprocket 3c, the upper end of the upper rotating shaft 81 is provided with an upper driven sprocket 8, and an upper transmission chain 12b is arranged between the upper driving sprocket 3c and the upper driven sprocket 8.

In the above S1, when the lower turntable assembly is controlled to be at the initial position, the third electric push rod 20 is controlled to be completely retracted, and due to the sliding fit of the shifting column 20a in the shifting groove 2a, the third electric push rod 20 drives the lower transverse plate 2 to clockwise rotate 90 ° around the vertical shaft 1a when retracted, so as to drive the clamp plate 6 to move, so that no structure is shielded above the clamp plate 6, and the brake pad 001 is conveniently installed;

the brake block 001 is manually placed on the clamping block 18, the first clamping electric rod 18b and the second clamping electric rod 18a are controlled to contract, the brake block 001 is clamped (as shown in fig. 7), the third electric push rod 20 extends completely to drive the lower transverse plate 2 to rotate to the position shown in fig. 1, and the lower turntable assembly is located under the polishing assembly to complete feeding.

In the above S2, when the distance between the brake pad 001 and the rotation center of the clamp disc 6 is adjusted to be the same as the radius of the friction radian when the brake pad 001 is used, first, the second electric push rod 15 extends to drive the radial toothed plate 17b connected to the second electric push rod 15 to move, since the radial toothed plate 17b is engaged with one of the intermediate gears 19b, the intermediate gear 19b is engaged with the ring gear 16, the ring gear 16 is engaged with the remaining intermediate gears 19b, and the remaining intermediate gears 19b are respectively engaged with the corresponding radial toothed plates 17b, so that while the second electric push rod 15 extends to drive the radial toothed plate 17b, the remaining radial toothed plates 17b are driven to move simultaneously through the intermediate gears 19b and the ring gear 16, since the radial toothed plate 17b is fixedly connected to the clamping block 18 through the connecting block 17a, the distance between the clamping block 18 and the rotation center of the clamp disc 6 can be adjusted, and when the polishing radius of the brake pad 001 is adjusted to be the same as the radius of the friction radian when the brake pad 001 is used, the second electric push rod 15 stops to finish the adjustment;

in the above S3, when the brake pad 001 is ground, the first motor 4 is turned on to drive the first bevel gear 5 to rotate, and since the lower bevel gear 3b and the upper bevel gear 3d are both engaged with the first bevel gear 5, the first bevel gear 5 rotates the lower bevel gear 3b and the upper bevel gear 3d to rotate simultaneously, and their rotation directions are opposite, since the upper driving sprocket 3c and the upper bevel gear 3d are fixedly connected, the lower driving sprocket 3a and the lower bevel gear 3b are fixedly connected, the upper driven sprocket 8 and the upper driving sprocket 3c are driven by the upper driving chain 12b, and the lower driven sprocket 7 and the lower driving sprocket 3a are driven by the lower driving chain 12a, so that the clamp disc 6 and the grinding disc 9 rotate in opposite directions; first electric putter 13 stretches out, drives to keep off ring 14 and promotes anchor clamps dish 6 and rise, drives brake block 001 and is close to polish to set 9, and when first electric putter 13 stretched out the certain distance, brake block 001 was polished and is ended, accomplished the action of polishing.

In the above-mentioned S4, after brake block 001 polished, first motor 4 stopped, and first electric putter 13 withdraws, and third electric putter 20 contracts completely, and it is rotatory to drive down diaphragm 2, and first centre gripping pole 18b and second centre gripping pole 18a stretch out and loosen brake block 001, and the manual work is taken off brake block 001, accomplishes the unloading.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.