Brake pad surface processing equipment

Abstract

The present invention belongs to the field of brake pad surface processing, and in particular, relates to a brake pad surface processing device for batch processing of brake pads, which includes a platform and a milling mechanism, wherein the platform is used to horizontally fix a batch of brake pads in a row, and the milling mechanism is used to grind the working surface of the batch of brake pads on the platform and mill heat dissipation grooves on the working surface of the batch of brake pads. The present invention uses the milling mechanism to efficiently grind the batch of brake pads fixed on the platform by centrifugal action and once form the heat dissipation grooves on the batch of brake pads.

Description

Technical Field

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

[0002] Car brake pads, also called car brake leathers, refer to the friction materials fixed on the brake drum or brake disc that rotates with the wheel. The friction lining and friction pads are subjected to external pressure, generating friction to achieve the purpose of decelerating the vehicle.

[0003] After the brake pads are pressed and shaped, they need to be polished. There are two ways to polish the brake pads:

[0004] The grinding disc with a larger area than the brake pad is used to contact and grind the working surface of the brake pad in a direction perpendicular to the working surface of the brake pad. During the grinding process, there is no need for the grinding disc and the brake pad to have relative translational motion. The brake pad is only grinded by the self-rotation of the grinding disc, and the grinding effect is high. The equipment is large in size and the equipment cost is high.

[0005] The grinding method using a grinding tool smaller than the area of ​​the brake pad is similar to the milling method of a milling machine. This grinding method is more commonly used, but this method requires a large horizontal feed amount of the grinding tool during the grinding process, which causes the brake pad to receive a large concentrated force during the grinding process. The brake pad will be damaged due to the large concentrated force, and a small feed amount will reduce the grinding efficiency of the brake pad.

[0006] The present invention improves the structure of the grinding tool for the second grinding method so as to disperse the force exerted on the lathe under a large feed rate. Summary of the invention

[0007] Based on this, it is necessary to provide a municipal jacking pipe structure to address the problems existing in the current brake pad surface processing equipment. The present invention uses a grinding and milling mechanism to utilize centrifugal action to efficiently grind the batch of brake pads fixed on the platform and to form the heat dissipation grooves on the batch of brake pads in one step.

[0008] The above purpose is achieved through the following technical solutions:

[0009] A brake pad surface processing device, used for batch processing of brake pads, characterized in that it comprises:

[0010] The platform is used for horizontally fixing rows of batches of brake pads; the platform moves horizontally on the base, and a power device is arranged in the middle of the gantry on the base, and the power device is located above the platform.

[0011] The grinding and milling mechanism is used for grinding the working surface of batch brake pads on the platform and milling heat dissipation grooves on the working surface of batch brake pads; the grinding and milling mechanism includes a column rod, a guide sleeve, a slider A, a grinding block, a spring A, a milling cutter, a spring B, a pull rope, a slider B, and a spring C. The column rod is installed at the lower end of the power device and is driven by the power device to rotate and move vertically; a cone disk is arranged at the lower end of the column rod, and sliders A are slid along the cone disk generatrix in the circumferentially evenly distributed slide grooves A on the edge of the cone disk, and springs A for resetting the sliders A are installed; the end of each slider A has a square grinding block for grinding the working surface of the brake pad; the end face of the grinding block is the grinding surface A, and the bottom face of the grinding block is the grinding surface B; a keyway milling cutter is axially slid in the slide groove B in the middle of the lower end of the column rod, and a spring B for axially resetting the milling cutter is installed; sliders B are radially slid along the column rod in several centrally symmetrical guide sleeves on the cylindrical surface of the column rod, and springs C for resetting the sliders B are installed, and each slider B is connected to the top of the milling cutter through a pull rope.

[0012] In one embodiment, the included angle between the sliding direction of the slider A and the axis of the column is greater than 80 degrees.

[0013] In one embodiment, the four sides of the grinding surface A on the grinding block have rounded corners, and the three sides of the grinding surface B have rounded corners.

[0014] In one embodiment, the platform has two parallel T-slots, and both T-slots are equipped with a plurality of pairs of bolts for fixing the brake pads in rows.

[0015] In one embodiment, the milling cutter is made of tungsten steel.

[0016] In one embodiment, the spring A is a compression spring.

[0017] In one embodiment, the spring B and the spring C are compression springs.

[0018] In one embodiment, the elastic coefficient of spring B is greater than the elastic coefficient of spring C.

[0019] The beneficial effects of the present invention are as follows:

[0020] Compared with the traditional brake pad surface processing equipment, the present invention uses the grinding and milling mechanism to utilize the centrifugal action to efficiently grind the batch of brake pads fixed on the platform and to form the heat dissipation grooves on the batch of brake pads at one time.

[0021] When the grinding mechanism grinds the brake pad in the horizontal direction, the grinding block located in the front of the movement on the lower end of the rotating column grinds the brake pad under the combined action of centrifugal force and spring A. As the grinding block rotates away from the front, the grinding block that rotates away from the front further grinds the grinding surface of the brake pad that was grinded by the grinding block in front under the action of centrifugal force and corresponding spring A. The height of the plane grinded on the brake pad by the grinding block that rotates away from the front is smaller than the height of the plane grinded on the brake pad by the grinding block in front, so that all the grinding blocks at the lower end of the column are always involved in the large feed grinding of the brake pad, ensuring that the force generated by the vehicle pad being ground by the large feed grinding of the milling mechanism is dispersed among all the grinding blocks at the lower end of the milling mechanism, thereby avoiding the brake pad from being damaged due to excessive concentration of force during the horizontal large feed high-efficiency grinding process, and having an unexpected grinding effect.

[0022] The invention integrates grinding and slot milling, has a simple structure, a small volume, a low equipment cost and a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall schematic diagram of the present invention.

[0024] Figure 2 It is a schematic diagram of the grinding and milling mechanism and its cross-section.

[0025] Figure 3 It is a schematic diagram of the column structure and its cross-section.

[0026] Figure 4 It is a schematic diagram of the slider A structure from two perspectives.

[0027] Figure 5 It is a side view cross-sectional schematic diagram of the cooperation between the grinding and milling mechanism and the brake pad.

[0028] Figure 6 It is a schematic diagram of the installation method of the brake pad on the cutaway platform and its cross-section.

[0029] Figure 7 It is a top view cross-sectional schematic diagram of the cooperation between the grinding and milling mechanism and the brake pad.

[0030] The reference numbers in the figure are as follows: 101, base; 102, platform; 1021, T-slot; 103, bolt; 104, steel back; 105, brake pad; 106, heat sink; 107, power unit; 200, grinding and milling mechanism; 201, column; 2011, slide A; 2012, slide B; 202, guide sleeve; 203, slider A; 204, grinding block; 2041, grinding surface A; 2042, grinding surface B; 205, spring A; 206, milling cutter; 207, spring B; 208, pull rope; 209, slider B; 210, spring C; 211, door frame. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] like Figure 1-7 As shown, a brake pad surface processing device is used for batch processing of brake pads 105, characterized in that it includes:

[0035] like Figure 1 , 6 As shown in , 7, the platform 102 is used to horizontally fix the batches of brake pads 105 in rows; Figure 1 , 5 As shown in , 7 , the platform 102 moves horizontally on the base 101 , and a power device 107 is provided in the middle of the gantry 211 on the base 101 , and the power device 107 is located above the platform 102 .

[0036] like Figure 5 , 6 As shown in , 7, the grinding and milling mechanism 200 is used to grind the working surface of the batch brake pads 105 on the platform 102 and mill the heat dissipation grooves 106 on the working surface of the batch brake pads 105; Figure 1 ,5 As shown, the milling mechanism 200 includes a column 201, a guide sleeve 202, a slider A203, a grinding block 204, a spring A205, a milling cutter 206, a spring B207, a pull rope 208, a slider B209, and a spring C210. ​​The column 201 is installed at the lower end of the power device 107 and is driven by the power device 107 to rotate and move vertically; Figure 2 , 3 As shown, a cone disk is provided at the lower end of the column 201, and a slider A203 slides along the cone disk generatrix in the evenly distributed sliding grooves A2011 on the edge of the cone disk, and a spring A205 is installed to reset the slider A203; Figure 4 , 5 As shown, the end of each slider A203 has a square grinding block 204 for grinding the working surface of the brake pad 105; the end surface of the grinding block 204 is a grinding surface A2041, and the bottom surface of the grinding block 204 is a grinding surface B2042; Figure 2 , 3 As shown, a keyway milling cutter 206 slides axially in the slide groove B2012 in the middle of the lower end of the column 201 and is equipped with a spring B207 for axially resetting the milling cutter 206; sliders B209 slide radially along the column 201 in several centrally symmetrical guide sleeves 202 on the cylindrical surface of the column 201 and are equipped with springs C210 for resetting the sliders B209, and each slider B209 is connected to the top of the milling cutter 206 by a pull rope 208.

[0037] The present invention uses the grinding and milling mechanism 200 to utilize the centrifugal effect to efficiently grind the batch of brake pads 105 fixed on the platform 102 and to form the heat dissipation grooves 106 on the batch of brake pads 105 at one time.

[0038] When the grinding mechanism 200 grinds the brake pad 105 in the horizontal direction, the grinding block 204 located in the front of the movement on the lower end of the rotating column 201 grinds the brake pad 105 under the combined action of centrifugal force and spring A205. As the grinding block 204 rotates away from the front, the grinding block 204 that rotates away from the front further grinds the grinding surface of the brake pad 105 that was grinded by the grinding block 204 located in the front under the action of centrifugal force and the corresponding spring A205. The height of the plane ground on the top is smaller than the height of the plane ground on the brake pad 105 by the front grinding block 204, so that all the grinding blocks 204 at the lower end of the column rod 201 are always involved in the large feed grinding of the brake pad 105, ensuring that the force generated by the large feed grinding of the wheel pad by the grinding and milling mechanism 200 is dispersed to all the grinding blocks 204 at the lower end of the grinding and milling mechanism 200, thereby avoiding the brake pad 105 from being damaged due to excessive concentration of force during the horizontal large feed high-efficiency grinding process, and having an unexpected grinding effect.

[0039] In a further embodiment, Figure 2 As shown, the included angle between the sliding direction of the slider A203 and the axis of the column rod 201 is greater than 80 degrees.

[0040] In a further embodiment, Figure 4 As shown, the four sides of the grinding surface A2041 on the grinding block 204 have rounded corners, and the three sides of the grinding surface B2042 have rounded corners.

[0041] In a further embodiment, Figure 1 , 6 As shown, the platform 102 has two parallel T-slots 1021 , and both T-slots 1021 are installed with a plurality of pairs of bolts 103 for fixing the brake pads 105 in a row.

[0042] In a further embodiment, Figure 2 As shown, the milling cutter 206 is made of tungsten steel.

[0043] In a further embodiment, Figure 2 As shown, the spring A205 is a compression spring.

[0044] In a further embodiment, Figure 2 As shown, the spring B207 and the spring C210 are compression springs.

[0045] In a further embodiment, Figure 2 As shown, the elastic coefficient of the spring B207 is greater than the elastic coefficient of the spring C210.

[0046] The workflow of the present invention is as follows:

[0047] In the initial state, all the sliders A203 in the grinding and milling mechanism 200 are located at the lowest limit position of the corresponding slide groove A2011 under the action of the corresponding spring A205, the grinding surfaces A2041 of all the grinding blocks 204 are located in the same circle, the grinding surfaces B2042 of all the grinding blocks 204 are located in the same horizontal plane, the blade end of the milling cutter 206 is sufficiently lower than the grinding surfaces B2042 of all the grinding blocks 204, the spring B207 and the spring C210 are both in a compressed state, and all the pull ropes 208 are in a taut state.

[0048] When the brake pads 105 need to be polished in batches using the present invention, a plurality of brake pads 105 are first fixed in a row on the platform 102 by cooperating a plurality of pairs of bolts 103 in two T-slots 1021 on the platform 102 with the holes on the steel back 104 where the brake pads 105 are located, so that the working surface of the brake pads 105 is located at the top.

[0049] Then, the platform 102 is started to move horizontally, so that the platform 102 drives the rows of brake pads 105 to move horizontally, so that one end of the side brake pad 105 is not located directly below the grinding mechanism 200. Next, the power device 8 is started to drive the grinding mechanism 200 to rotate rapidly and drive the grinding mechanism 200 to move vertically toward the brake pad 105 by a certain amplitude according to the thickness of the brake pad 105 to be grinded. The rapidly rotating grinding mechanism 200 causes the sliders B209 in all the guide sleeves 202 to overcome the springs B207 and C210 under the centrifugal action, and pull the milling cutter 206 axially to contract and enter the slide groove B2012 through the pull rope 208.

[0050] Next, the driving platform 102 moves along the arrangement direction of the brake pads 105 toward the bottom of the grinding and milling mechanism 200. As the platform 102 moves along the arrangement direction of the brake pads 105, the grinding and milling mechanism 200 completes the grinding of the same side end working surfaces of all the brake pads 105. Then, the driving platform 102 drives all the brake pads 105 to move horizontally by a certain amplitude in a direction perpendicular to the arrangement direction of the brake pads 105, so that the grinding and milling mechanism 200 moves to the other end of the brake pad 105.

[0051] Next, the platform 102 is driven again to drive all the brake pads 105 to move horizontally toward the grinding mechanism 200 along the arrangement direction of the brake pads 105 . The grinding mechanism 200 completes the grinding of the working surface at the other end of the brake pad 105 as the platform 102 moves.

[0052] Next, the driving platform 102 drives all the brake pads 105 to move horizontally for a certain range in a direction perpendicular to the arrangement direction of the brake pads 105, so that the grinding mechanism 200 moves to the middle of the brake pads 105. The driving platform 102 drives all the brake pads 105 to move horizontally toward the grinding mechanism 200 along the arrangement direction of the brake pads 105 again, and the grinding mechanism 200 completes the grinding of the middle working surface of the brake pads 105 as the platform 102 moves.

[0053] After the grinding mechanism 200 completes the grinding of the working surfaces of all the brake pads 105, the grinding mechanism 200 is driven to rotate at a slower speed by the power device 8. The centrifugal force of the sliders B209 in all the guide sleeves 202 is not enough to overcome the elastic force of the springs B207 and the springs C210, so that the milling cutter 206 moves a certain distance outside the slide groove B2012 under the reset action of the spring B207. All the sliders B209 slide back a certain distance under the action of the corresponding springs C210 and the pull rope 208, so that the distance at which the end of the milling cutter 206 reaches below the working surface of the brake pad 105 matches the depth of the heat dissipation groove 106 that needs to be milled in the middle of the brake pad 105.

[0054] Next, the driving platform 102 drives all the brake pads 105 to move horizontally toward the milling mechanism 200 along the arrangement direction of the brake pads 105 , and the milling mechanism 200 drives the milling cutter 206 to rotate. As the platform 102 drives the movement of the brake pads 105 , the milling cutter 206 completes the processing of the heat dissipation grooves 106 in the middle of all the brake pads 105 in turn.

[0055] During the grinding process of the milling mechanism 200 grinding the working surface of the brake pad 105, the grinding block 204 located in the front of the grinding mechanism 200 and grinding the brake pad 105 first shrinks to a certain extent toward the corresponding slide groove A2011 and compresses the corresponding spring A205 under the action of the working surface of the brake pad 105, and the grinding block 204 is driven by the rotating column 201 to move from the side to the front, and the shrinkage of the grinding block 204 into the slide groove A2011 gradually increases. During the movement of the grinding block 204 from the front side to the slide groove A2011 driven by the rotating column 201, the shrinkage of the grinding block 204 into the slide groove A2011 gradually decreases, so that the grinding thickness of the working surface of the grinding block 204 located at the front end of the grinding mechanism 200 is the smallest. As the grinding block 204 rotates away from the front, the rotation The grinding block 204 away from the front further grinds the grinding surface of the brake pad 105 grinded by the grinding block 204 in front under the action of centrifugal force and the corresponding spring A205, and the height of the plane grinded on the brake pad 105 by the grinding block 204 away from the front is smaller than the height of the plane grinded on the brake pad 105 by the grinding block 204 in front, so that all the grinding blocks 204 at the lower end of the column rod 201 are always involved in the large feed grinding of the brake pad 105, ensuring that the force generated by the large feed grinding of the wheel pad by the grinding and milling mechanism 200 is dispersed to all the grinding blocks 204 at the lower end of the grinding and milling mechanism 200, thereby avoiding the brake pad 105 from being damaged due to excessive concentration of force during its high-efficiency grinding with a large horizontal feed, and having an unexpected grinding effect.

[0056] In summary, the beneficial effects of the present invention are as follows: the present invention utilizes the centrifugal force through the milling mechanism 200 to efficiently grind the batch of brake pads 105 fixed on the platform 102 and to form the heat dissipation grooves 106 on the batch of brake pads 105 at one time. When the milling mechanism 200 grinds the brake pads 105 in the horizontal direction, the grinding block 204 located at the front of the movement on the lower end of the rotating column 201 grinds the brake pads 105 under the combined action of centrifugal force and spring A205. As the grinding block 204 rotates away from the front, the grinding block 204 that rotates away from the front further grinds the grinding surface of the brake pad 105 that is grinded by the grinding block 204 located in the front under the action of centrifugal force and the corresponding spring A205. The grinding block 204 that rotates away from the front is on the brake pad 105. The height of the plane ground on the top is smaller than the height of the plane ground on the brake pad 105 by the front grinding block 204, so that all the grinding blocks 204 at the lower end of the column rod 201 are always involved in the large feed grinding of the brake pad 105, ensuring that the force generated by the large feed grinding of the wheel pad by the grinding and milling mechanism 200 is dispersed to all the grinding blocks 204 at the lower end of the grinding and milling mechanism 200, thereby avoiding the brake pad 105 from being damaged due to excessive concentration of force during the horizontal large feed high-efficiency grinding process, and having an unexpected grinding effect.

[0057] The invention integrates grinding and slot milling, has a simple structure, a small volume, a low equipment cost and a good use effect.

Claims

1. A brake pad surface processing equipment, used for batch processing of brake pads, characterized in that it include: The platform is used to horizontally fix the batches of brake pads in rows; the platform moves horizontally on the base, and a power device is arranged in the middle of the mast on the base, and the power device is located above the platform; The grinding and milling mechanism is used for grinding the working surface of batch brake pads on the platform and milling heat dissipation grooves on the working surface of batch brake pads; the grinding and milling mechanism includes a column rod, a guide sleeve, a slider A, a grinding block, a spring A, a milling cutter, a spring B, a pull rope, a slider B, and a spring C. The column rod is installed at the lower end of the power device and is driven by the power device to rotate and move vertically; a cone disk is arranged at the lower end of the column rod, and sliders A are slid along the cone disk generatrix in the circumferentially evenly distributed slide grooves A on the edge of the cone disk, and springs A for resetting the sliders A are installed; the end of each slider A has a square grinding block for grinding the working surface of the brake pad; the end face of the grinding block is the grinding surface A, and the bottom face of the grinding block is the grinding surface B; a keyway milling cutter is axially slid in the slide groove B in the middle of the lower end of the column rod, and a spring B for axially resetting the milling cutter is installed; sliders B are radially slid along the column rod in several centrally symmetrical guide sleeves on the cylindrical surface of the column rod, and springs C for resetting the sliders B are installed, and each slider B is connected to the top of the milling cutter through a pull rope.

2. The brake pad surface processing equipment according to claim 1, characterized in that: The included angle between the sliding direction of the slider A and the axis of the column rod is greater than 80 degrees.

3. The brake pad surface processing equipment according to claim 1, characterized in that: The four sides of the grinding surface A on the grinding block have rounded corners, and the three sides of the grinding surface B have rounded corners.

4. The brake pad surface processing equipment according to claim 1, characterized in that: The platform is provided with two T-slots parallel to each other, and both T-slots are provided with a plurality of pairs of bolts for fixing the brake pads in a row.

5. The brake pad surface processing equipment according to claim 1, characterized in that: The milling cutter is made of tungsten steel.

6. The brake pad surface processing equipment according to claim 1, characterized in that: The spring A is a compression spring.

7. The brake pad surface processing equipment according to claim 1, characterized in that: The spring B and the spring C are compression springs.

8. The brake pad surface processing equipment according to claim 7, characterized in that: The elastic coefficient of the spring B is greater than the elastic coefficient of the spring C.

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