Drum brake pad inner and outer arc combined grinding equipment

Abstract

The invention provides drum type brake pad inner and outer arc combined grinding equipment. The drum type brake pad inner and outer arc combined grinding equipment comprises a machining table, a rotating disc, an inner arc grinding roller, an outer arc grinding roller and a transferring mechanism. According to the combined grinding equipment for the inner arc and the outer arc of the drum brake pad, in the using process, the brake pad can be conveyed to the first grinding gap of the inner arc guide roller, the inner arc of the brake pad is extruded to the inner arc grinding roller through the outer side face of the extrusion disc for inner arc grinding, and the brake pad moves along with the extrusion disc in the grinding process. And after inner arc grinding is completed, the brake pad is conveyed to the outer arc grinding roller and the positioning disc through the transfer mechanism, the brake pad can be attached to the outer side of the positioning disc, and the outer side face of the brake pad is ground through the second grinding gap. Therefore, in the rotating process of the same rotating disc, grinding of the inner ring and the outer ring of the brake pad can be achieved. And continuous grinding production operation can be achieved, and the grinding effect of the inner arc and the outer arc of the brake pad is effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of brake pad manufacturing technology, specifically relating to a combined grinding equipment for the inner and outer arcs of drum brake pads. Background Technology

[0002] Drum brakes are a fundamental braking device widely used in automobiles, commercial vehicles, and other fields. Their core component, the brake pads, generates friction by pressing the friction material on their outer curved surface against the inner wall of the rotating brake drum, thus achieving vehicle deceleration or braking. To ensure braking performance and avoid abnormal noise and uneven wear, the outer curved surface of the brake pad friction block must have an extremely high degree of contact with the inner curved surface of the brake drum.

[0003] Therefore, after drum brake pads are formed, the inner and outer arcs need to be ground. This is to ensure the flatness of the inner and outer arcs and to adjust the thickness of the brake pads. Because drum brake pads have an arc-shaped structure, the grinding of the inner and outer arcs cannot be completed on the same equipment. Separate equipment is required to process the inner or outer arc of the brake pad. This results in a longer production process and cycle time for drum brake pads, affecting their production efficiency. Summary of the Invention

[0004] This invention provides a combined grinding equipment for the inner and outer arcs of drum brake pads, which aims to solve the problem of cumbersome processing steps and reduced production efficiency in the grinding of inner and outer arcs of drum brake pads in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a combined grinding equipment for the inner and outer arcs of a drum brake pad, comprising: Processing table; A rotating disk, on which an extrusion disk and a positioning disk are coaxially arranged, the extrusion disk being located below the positioning disk; An inner arc grinding roller is rotatably disposed on one side of the extrusion disc, and the inner arc grinding roller and the extrusion disc form a first grinding gap; An outer arc grinding roller is rotatably mounted on one side of the positioning disk, and the outer arc grinding roller and the extrusion disk form a second grinding gap; The transfer mechanism is located at the outlet of the first grinding gap and the inlet of the second grinding gap, and is used to transfer the brake pads from the first grinding gap to the second grinding gap.

[0006] In one possible implementation, a feeding mechanism for pushing brake pads is provided at the feed inlet of the first grinding gap, the feeding mechanism comprising: The first conveyor belt is installed on one side of the rotating disk; An elastic baffle is installed above the first conveyor belt. The elastic baffle and the side plate on the first conveyor belt form a conveying gap for conveying brake pads. The discharge end of the conveying gap is located at the inlet of the first grinding gap.

[0007] In one possible implementation, the transfer mechanism includes: The second conveyor belt is installed at the discharge port of the first grinding gap; The third conveyor belt is located on one side of the second conveyor belt and is used to convey brake pads to the feed inlet of the second grinding gap. A pusher assembly for pushing brake pads from the second conveyor belt onto the third conveyor belt.

[0008] In one possible implementation, the push component includes: A push plate is slidably disposed above the second conveyor belt, and the push plate is provided with two stop levers for pushing the brake pads; A pusher, installed on one side of the second conveyor belt, is used to drive the pusher plate to move.

[0009] In one possible implementation, the discharge end of the third conveyor belt is provided with a pressing mechanism for pressing the brake pad against the outer wall of the positioning disc, the pressing mechanism comprising: The lifting frame is slidably mounted on the processing table in a vertical direction; A pusher frame is slidably mounted on the lifting frame along the radial direction of the positioning plate, and a first extrusion roller and a second extrusion roller are rotatably mounted on the pusher frame and arranged in parallel at intervals.

[0010] In one possible implementation, a swing frame is oscillating on the push frame about the axis of the first extrusion roller, and the second extrusion roller is rotatably mounted on the swing frame.

[0011] In one possible implementation, along the rotation direction of the rotating disk, an elastic pressure plate for pressing the brake pads onto the positioning disk is further provided behind the second grinding gap.

[0012] In one possible implementation, a fourth conveyor belt for outputting brake pads is installed behind the second grinding gap along the rotation direction of the rotating disk. A baffle for limiting the brake pads as they rotate with the positioning disk is installed on the side plate of the fourth conveyor belt. The baffle and the elastic pressure plate form a dropping section for the brake pads to disengage from the positioning disk.

[0013] In one possible implementation, the third conveyor belt has a lifting section in the middle for raising the height of the brake pads, a storage plate is provided at the discharge end of the third conveyor belt, and a support platform for supporting the brake pads is provided at the bottom end of the positioning plate, the height of the storage plate being no less than the top surface of the support platform.

[0014] In one possible implementation, the extrusion disc is fitted onto the outside of the rotating disc, and the positioning disc is detachably mounted on the rotating disc.

[0015] The solution shown in this application, compared with the prior art, features a processing table with a rotating disk rotatably positioned at its center. The rotating disk is driven by a motor, and a pressing disk and a positioning disk are sequentially arranged on the rotating disk from bottom to top. Inner arc grinding rollers and outer arc grinding rollers are also sequentially arranged on the processing table along the rotation direction of the rotating disk. During use, the brake pad is first fed to the first grinding gap of the inner arc guide roller. The inner arc of the brake pad is pressed onto the inner arc grinding roller by the outer side of the pressing disk for inner arc grinding, and the brake pad moves with the pressing disk during the grinding process. After the inner arc grinding is completed, the brake pad is transported to the outer arc grinding roller and positioning disk by a transfer mechanism. The brake pad fits against the outer side of the positioning disk and passes through the second grinding gap for grinding of the outer surface of the brake pad. Thus, during the rotation of the same rotating disk, the inner and outer rings of the brake pad can be ground simultaneously. Continuous grinding production is also possible, effectively improving the grinding effect of the inner and outer arcs of the brake pad. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the drum brake pad inner and outer arc combined grinding equipment provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the feeding mechanism provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the transfer mechanism provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the extrusion mechanism provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the installation structure of the fourth conveyor belt provided in an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Processing table; 2. Rotary disc; 21. Extrusion disc; 22. Positioning disc; 3. Inner arc grinding roller; 4. Outer arc grinding roller; 41. Elastic pressure plate; 5. Transfer mechanism; 51. Second conveyor belt; 52. Third conveyor belt; 521. Lifting section; 522. Support platform; 53. Pushing assembly; 531. Pushing plate; 532. Pushing component; 6. Feeding mechanism; 61. First conveyor belt; 62. Elastic lever; 7. Extrusion mechanism; 71. Lifting frame; 72. Pushing frame; 73. First extrusion roller; 74. Second extrusion roller; 75. Swinging frame; 8. Fourth conveyor belt; 81. Baffle. Detailed Implementation

[0018] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0019] Please refer to the following: Figures 1 to 5 The present invention provides a combined grinding equipment for the inner and outer arcs of drum brake pads. The combined grinding equipment includes a processing table 1, a rotating disk 2, an inner arc grinding roller 3, an outer arc grinding roller 4, and a transfer mechanism 5. An extrusion disk 21 and a positioning disk 22 are coaxially arranged on the rotating disk 2, with the extrusion disk 21 located below the positioning disk 22. The inner arc grinding roller 3 is rotatably disposed on one side of the extrusion disk 21, forming a first grinding gap between the inner arc grinding roller 3 and the extrusion disk 21. The outer arc grinding roller 4 is rotatably disposed on one side of the positioning disk 22, forming a second grinding gap between the outer arc grinding roller 4 and the extrusion disk 21. The transfer mechanism 5 is located at the outlet of the first grinding gap and the inlet of the second grinding gap, and is used to transfer the brake pad from the first grinding gap to the second grinding gap.

[0020] The drum brake pad inner and outer arc combined grinding equipment provided in this embodiment, compared with the prior art, features a processing table 1 with a rotating disk 2 rotatably positioned at its center. The rotating disk 2 is driven by a motor, and from bottom to top, a pressing disk 21 and a positioning disk 22 are sequentially arranged on the rotating disk 2. An inner arc grinding roller 3 and an outer arc grinding roller 4 are also sequentially arranged on the processing table 1 along the rotation direction of the rotating disk 2. During use, the brake pad is first fed to the first grinding gap of the inner arc guide roller. The inner arc of the brake pad is pressed onto the inner arc grinding roller 3 by the outer side of the pressing disk 21 for inner arc grinding, and the brake pad moves with the pressing disk 21 during the grinding process. After the inner arc grinding is completed, the brake pad is transported to the outer arc grinding roller 4 and the positioning disk 22 by a transfer mechanism 5. The brake pad can then be fitted to the outer side of the positioning disk 22 and ground through the second grinding gap. Thus, during the rotation of the same rotating disk 2, grinding of both the inner and outer rings of the brake pad can be achieved. It can also enable continuous grinding production, effectively improving the grinding effect of the inner and outer arcs of brake pads.

[0021] Specifically, in this embodiment, the extrusion disc 21 is a ring-shaped structure made of rubber or polyurethane and is fitted onto the outside of the rotating disc 2. On the one hand, it can prevent the brake pads from being crushed, and on the other hand, it can increase the friction between the disc and the brake pads, so that when the rotating disc 2 rotates, it can drive the brake pads to move and be polished by the inner arc grinding roller 3.

[0022] In some embodiments, the feeding mechanism 6 described above may employ, for example... Figure 1 , Figure 2 The structure shown. See also... Figure 1 , Figure 2 A feeding mechanism 6 for pushing brake pads is provided at the inlet of the first grinding gap. The feeding mechanism 6 includes a first conveyor belt 61 and an elastic deflector 62. The first conveyor belt 61 is installed on one side of the rotating disk 2; the elastic deflector 62 is installed above the first conveyor belt 61. The elastic deflector 62 and the side plate on the first conveyor belt 61 form a conveying gap for conveying brake pads. The outlet end of the conveying gap is located at the inlet of the first grinding gap. A baffle 81 is installed above the first conveyor belt 61. One baffle 81 extends inward toward the conveyor belt, and the elastic deflector 62 is installed on the opposite side, so that the elastic deflector 62 and the opposite baffle 81 form a conveying gap. The elastic deflector 62 extends inclinedly toward the baffle 81 along the conveying direction of the conveyor belt, thereby guiding the brake pad to move to the conveying gap and being driven by the first conveyor belt 61 to move the brake pad into the first grinding gap, realizing the grinding of the inner arc of the brake pad.

[0023] Specifically, in this embodiment, before the end of the brake pad moves to the first grinding gap, the elastic lever 62 abuts against the rear half of the brake pad. Under the push of the elastic lever 62, the arc-shaped structure of the brake pad can further push the brake pad to move into the first grinding gap, so that the brake pad can move stably into the first grinding gap.

[0024] In some embodiments, the aforementioned transfer mechanism 5 may employ, for example... Figure 1 , Figure 3 The structure shown. See also... Figure 1 , Figure 3 The transfer mechanism 5 includes a second conveyor belt 51, a third conveyor belt 52, and a pushing component 53. The second conveyor belt 51 is located at the outlet of the first grinding gap; the third conveyor belt 52 is located on one side of the second conveyor belt 51 and is used to convey brake pads to the inlet of the second grinding gap; the pushing component 53 is used to push the brake pads from the second conveyor belt 51 onto the third conveyor belt 52. The second conveyor belt 51 and the third conveyor belt 52 are arranged parallel to each other in the horizontal direction. The inlet end of the second conveyor belt 51 is located at the outlet of the first grinding gap. After the brake pads have been ground through the first grinding gap, they can fall directly onto the second conveyor belt 51 and move away from the rotating disk 2 via the second conveyor belt 51. A limiting plate is fixedly installed above the tail end of the second conveyor belt 51 to prevent the brake pad from detaching from the second conveyor belt 51. When the brake pad moves to the limiting plate, the pushing component 53 can push the brake pad from the second conveyor belt 51 to the third conveyor belt 52, and then the third conveyor belt 52 will transport it to the positioning plate 22 on the rotating disk 2. Then the outer arc surface of the brake pad will be polished by the outer arc grinding roller 4.

[0025] Specifically, in this embodiment, a sensor for sensing brake pads is installed at the tail end of the second conveyor belt 51. The sensor is electrically connected to a controller, which is electrically connected to the drive end of the push assembly 53. When the brake pads move to the limiting plate, the sensor senses the position of the brake pads to control the push rod assembly to push the brake pads onto the third conveyor belt 52.

[0026] In some embodiments, the push component 53 described above may employ, for example... Figure 3 The structure shown. See also Figure 3The pushing assembly 53 includes a pushing plate 531 and a pushing member 532. The pushing plate 531 is slidably disposed above the second conveyor belt 51, and has two stop levers for pushing the brake pads. The pushing member 532 is installed on one side of the second conveyor belt 51 to drive the pushing plate 531 to move. A mounting base is provided on the side of the second conveyor belt 51 away from the third conveyor belt 52, and a fixing block is fixedly installed on the mounting base. Two guide posts are fixedly installed on the pushing plate 531, and the two guide posts are slidably disposed on the fixing block. The pushing member 532, which is a cylinder, is also fixedly installed on the mounting base. The pushing member 532 can drive the pushing plate 531 to move horizontally and perpendicular to the conveying direction of the second conveyor belt 51.

[0027] Specifically, in this embodiment, two baffles are fixedly installed on the push plate 531. The two baffles 81 are arranged vertically and spaced apart along the length of the push plate 531. When the brake pad is pushed, the two baffles abut against the inner arc surface of the brake pad, thereby stably pushing the brake pad onto the third conveyor belt 52.

[0028] Preferably, in this embodiment, the two levers can regulate the state of the brake pads when they are pushed.

[0029] In some embodiments, the extrusion mechanism 7 described above may employ, for example... Figure 1 , Figure 4 and Figure 5 The structure shown. See also... Figure 1 , Figure 4 and Figure 5 The discharge end of the third conveyor belt 52 is provided with an extrusion mechanism 7 for pressing the brake pad against the outer wall of the positioning disk 22. The extrusion mechanism 7 includes a lifting frame 71 and a pushing frame. The lifting frame 71 is slidably mounted on the processing table 1 in a vertical direction; the pushing frame 72 is slidably mounted on the lifting frame 71 in a radial direction along the positioning disk 22. A first extrusion roller 73 and a second extrusion roller 74 are rotatably mounted on the pushing frame 72 and are arranged in parallel at intervals. The lifting frame 71 is installed on one side of the rotating disk 2 and is located on the feeding side of the outer arc grinding roller 4. In the initial state, the lifting frame 71 is in the upper position. After the brake pad is conveyed to the rotating disk 2 by the third conveyor belt 52, the lifting frame 71 moves downward. At this time, the first extrusion roller 73 and the second extrusion roller 74 on the push frame 72 are located outside the brake pad. Then the push frame 72 moves towards the positioning disk 22, so that the brake pad can be extruded onto the positioning disk 22 by the first extrusion roller 73 and the second extrusion roller 74. The brake pad can also move together with the positioning disk 22 to the outer arc grinding roller 4 to grind the outer arc.

[0030] Specifically, in this embodiment, both the first extrusion roller 73 and the second extrusion roller 74 are rotatably mounted on the pusher frame, so that the brake pad can rotate stably with the positioning disk 22 under the extrusion of the first extrusion roller 73 and the second extrusion roller 74.

[0031] In some embodiments, the aforementioned pusher frame 72 may be adopted as follows: Figure 4 , Figure 5 The structure shown. See also... Figure 4 , Figure 5 A swing frame 75 is oscillating on the push frame 72 around the axis of the first extrusion roller 73, and the second extrusion roller 74 is rotatably mounted on the swing frame 75. A rotating shaft for mounting the first extrusion roller 73 is rotatably mounted on the push frame 72, and a swing arm is fixedly mounted on the rotating shaft. The second extrusion roller 74 is rotatably mounted on the other end of the swing arm. The first extrusion roller 73 is located on the side of the second extrusion roller 74 closer to the positioning plate 22. Since the brake pad automatically falls onto the second conveyor belt 51 after the inner arc grinding is completed, and then transfers from the second conveyor belt 51 to the third conveyor belt 52, the inner arc surface of the brake pad faces the direction of the second conveyor belt 51. In the initial state of operation of the extrusion mechanism 7, the swing arm rotates to make the connecting line between the axes of the first extrusion roller 73 and the second extrusion roller 74 aligned with the conveying direction of the third conveyor belt 52. This ensures that after the lifting frame 71 moves downward, both the first extrusion roller 73 and the second extrusion roller 74 are located on the outer surface of the brake pad, and then the swing arm swings towards the positioning plate 22. The second pressing roller 74 can push the brake pad to swing, so that the inner arc surface of the brake pad faces the outer arc surface of the positioning plate 22. Finally, the pusher 72 moves to press the brake pad against the outer arc surface of the positioning plate 22. The second pressing roller 74 can swing relative to the first pressing roller 73 to adjust the position of the brake pad, ensuring that the brake pad can be stably pushed to fit against the outer side of the positioning plate 22.

[0032] Specifically, in this embodiment, a support frame is fixedly installed on the processing table 1 on the side of the third conveyor belt 52 away from the second conveyor belt 51. A lifting frame 71 is slidably mounted on the support frame in the vertical direction, and a cylinder for pushing the lifting frame 71 to move up and down is fixedly installed on the support frame. A push frame 72 is slidably mounted on the lifting frame 71 in the radial direction of the positioning plate 22, and a cylinder for pushing the push frame 72 to move is fixedly installed on the lifting frame 71. A motor for driving the rotating shaft for mounting the first extrusion roller 73 is fixedly installed on the push frame 72, and a swing arm is fixedly installed on the rotating shaft. A guide rod is vertically fixedly installed on the swing arm, and an arc-shaped groove for guiding the guide rod is provided on the push frame 72. The motor can drive the swing arm to swing, thereby switching the working state of the swing arm.

[0033] Preferably, in this embodiment, when the brake pad is pushed onto the positioning disk 22, the pusher 72 and the swing arm can move together to push the brake pad onto the outer surface of the positioning disk 22, thereby improving the feeding efficiency of the brake pad.

[0034] In some embodiments, the positioning disk 22 may be adopted as follows: Figure 5 The structure shown. See also Figure 5 Along the rotation direction of the rotating disk 2, an elastic pressure plate 41 is provided behind the second grinding gap to press the brake pad onto the positioning disk 22. The elastic pressure plate 41 has its middle portion abutting against the outer surface of the positioning disk 22, and its end forming an opening between the elastic pressure plate 41 and the outer surface of the positioning disk 22, allowing the brake pad to slide into the space between the elastic pressure plate 41 and the positioning disk 22. During use, after the brake pad passes through the second grinding gap and its outer arc surface is ground, it slides through the opening between the elastic pressure plate 41 and the positioning disk 22, whereby the elastic pressure plate 41 presses the brake pad firmly against the outer surface of the positioning disk 22. This ensures that the brake pad can stably adhere to the outer surface of the positioning disk 22 during grinding.

[0035] Specifically, in this embodiment, along the circumference of the positioning disk 22, a pressing mechanism 7 and an elastic pressure plate 41 are respectively installed on both sides of the second grinding gap, so that the brake pad can be pressed by external force and adhere to the outer surface of the positioning disk 22 before and after the outer arc grinding, thereby improving the stability of the brake pad position during the grinding process.

[0036] In some embodiments, the fourth conveyor belt 8 described above can be as follows: Figure 1 , Figure 5 The structure shown. See also... Figure 1 , Figure 5 Along the rotation direction of the rotating disk 2, a fourth conveyor belt 8 for outputting brake pads is installed behind the second grinding gap. A baffle 81 for limiting the brake pads' rotation with the positioning disk 22 is installed on the side plate of the fourth conveyor belt 8. The baffle 81 and the elastic pressure plate 41 form a discharge section for disengaging the brake pads from the positioning disk 22. The fourth conveyor belt 8 is located behind the second grinding gap and is designed to transport the ground brake pads to the outside for easy sorting by the operator. When the brake pads disengage from the elastic pressure plate 41 and continue to rotate with the positioning disk 22, the end of the brake pads can abut against the baffle 81, thereby limiting the movement of the brake pads and preventing them from detaching from the positioning disk 22. Preferably, in this embodiment, the end of the baffle 81 near the positioning disk 22 is inclined towards the elastic pressure plate 41, thereby guiding the brake pads to fall off the positioning disk 22.

[0037] Specifically, in this embodiment, a baffle 81 is fixedly installed above the frame of the fourth conveyor belt 8. One end of the baffle 81 extends towards the positioning disk 22 to limit the brake pad from continuing to rotate with the positioning disk 22. When the brake pad moves to the point where one end abuts against the baffle 81, the other end of the brake pad disengages from the elastic pressure plate 41, thereby allowing the brake pad to fall off the positioning disk 22 and onto the fourth conveyor belt 8 for output, while simultaneously completing the grinding of the inner and outer arcs of the brake pad.

[0038] In some embodiments, the third conveyor belt 52 described above may be as follows: Figure 3 , Figure 4 The structure shown. See also... Figure 3 , Figure 4 The third conveyor belt 52 has a lifting section 521 in its middle for raising the height of the brake pads. A storage plate is provided at the discharge end of the third conveyor belt 52. A support platform 522 for supporting the brake pads is provided at the bottom end of the positioning disk 22. The height of the storage plate is not lower than the top surface of the support platform 522. In this embodiment, the positioning disk 22 is located above the extrusion disk 21. When the brake pads are conveyed from the extrusion disk 21 to the positioning disk 22, their position needs to be adjusted upwards. The middle section of the third conveyor belt 52 is inclined upwards along the conveying direction, with an inclination angle of less than 20°, thus ensuring stable conveying of the brake pads. Simultaneously, a support platform 522 is provided at the end of the third conveyor belt 52. The brake pads can be conveyed to the support platform 522 via the third conveyor belt 52, and then the position of the brake pads is adjusted by the extrusion mechanism 7. After being conveyed to the support platform 522, the brake pads can remain on the support platform 522, facilitating the pushing action of the extrusion mechanism 7 to press the brake pads onto the outer surface of the positioning disk 22.

[0039] In some embodiments, the extrusion disc 21 may be adopted as follows: Figure 1 The structure shown. See also Figure 1 The extrusion disc 21 is fitted onto the outside of the rotating disc 2, and the positioning disc 22 is detachably mounted on the rotating disc 2. The extrusion disc 21 is a ring-shaped structure made of rubber or polyurethane and is fixedly mounted onto the outside of the rotating disc 2. The positioning disc 22 is made of a rigid material and is fixedly mounted on the extrusion disc 21 by bolts. A positioning protrusion for positioning onto the rotating disc 2 is provided at the bottom of the positioning disc 22. A positioning hole corresponding to the positioning protrusion is provided at the top of the rotating disc 2.

[0040] Specifically, in this embodiment, the positioning disk 22 is detachably mounted on the rotating disk 2, so that the corresponding positioning disk 22 can be replaced according to the brake pads of different curvatures. Furthermore, the positions of the inner arc grinding roller 3 and the outer arc grinding roller 4 on the processing table 1 can be adjusted along the radial direction of the positioning disk 22. The specific adjustment structures are all existing technologies and will not be described here.

[0041] Preferably, in this embodiment, a support platform 522 protrudes outward from the bottom end of the positioning disk 22. The support platform 522 is used to support the brake pads and ensure the stability of the position of the brake pads installed on the positioning disk 22.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A combined grinding machine for the inner and outer arcs of a drum brake pad, characterized in that, include: Processing table (1); A rotating disk (2) is provided with an extrusion disk (21) and a positioning disk (22) coaxially arranged on the rotating disk (2), wherein the extrusion disk (21) is located below the positioning disk (22); An inner arc grinding roller (3) is rotatably disposed on one side of the extrusion disc (21), and the inner arc grinding roller (3) and the extrusion disc (21) form a first grinding gap. An outer arc grinding roller (4) is rotatably disposed on one side of the positioning disk (22), and the outer arc grinding roller (4) and the extrusion disk (21) form a second grinding gap; The transfer mechanism (5) is set at the outlet of the first grinding gap and the inlet of the second grinding gap, and is used to transfer the brake pad from the first grinding gap to the second grinding gap.

2. The combined grinding equipment for inner and outer arcs of drum brake pads as described in claim 1, characterized in that, A feeding mechanism (6) for pushing brake pads is provided at the feed inlet of the first grinding gap, the feeding mechanism (6) including: The first conveyor belt (61) is installed on one side of the rotating disk (2); An elastic lever (62) is installed above the first conveyor belt (61). The elastic lever (62) and the side plate on the first conveyor belt (61) form a conveying gap for conveying brake pads. The discharge end of the conveying gap is located at the inlet of the first grinding gap.

3. The combined grinding equipment for inner and outer arcs of drum brake pads as described in claim 1, characterized in that, The transfer mechanism (5) includes: The second conveyor belt (51) is set at the discharge port of the first grinding gap; The third conveyor belt (52) is disposed on one side of the second conveyor belt (51) and is used to convey brake pads to the feed inlet of the second grinding gap. A pusher assembly (53) is used to push the brake pads from the second conveyor belt (51) onto the third conveyor belt (52).

4. The combined grinding equipment for inner and outer arcs of drum brake pads as described in claim 3, characterized in that, The push component (53) includes: A push plate (531) is slidably disposed above the second conveyor belt (51), and the push plate (531) is provided with two stop levers for pushing the brake pads; A pusher (532) is installed on one side of the second conveyor belt (51) to drive the pusher plate (531) to move.

5. The combined grinding equipment for inner and outer arcs of drum brake pads as described in claim 3, characterized in that, The discharge end of the third conveyor belt (52) is provided with an extrusion mechanism (7) for pressing the brake pad against the outer wall of the positioning disk (22). The extrusion mechanism (7) includes: The lifting frame (71) is slidably mounted on the processing table (1) in the vertical direction; The push frame (72) is slidably mounted on the lifting frame (71) along the radial direction of the positioning plate (22). The push frame (72) is rotatably mounted with a first extrusion roller (73) and a second extrusion roller (74) arranged in parallel at intervals.

6. The combined grinding equipment for inner and outer arcs of drum brake pads as described in claim 5, characterized in that, The push frame (72) is provided with a swing frame (75) oscillating around the axis of the first extrusion roller (73), and the second extrusion roller (74) is rotatably mounted on the swing frame (75).

7. The combined grinding equipment for inner and outer arcs of drum brake pads as described in claim 1, characterized in that, Along the rotation direction of the rotating disk (2), an elastic pressure plate (41) for pressing the brake pads onto the positioning disk (22) is also provided behind the second grinding gap.

8. The combined grinding equipment for inner and outer arcs of drum brake pads as described in claim 7, characterized in that, Along the rotation direction of the rotating disk (2), a fourth conveyor belt (8) for outputting brake pads is installed behind the second grinding gap. A baffle (81) for limiting the brake pads from rotating with the positioning disk (22) is installed on the side plate of the fourth conveyor belt (8). The baffle (81) and the elastic pressure plate (41) form a dropping section for the brake pads to disengage from the positioning disk (22).

9. The combined grinding equipment for inner and outer arcs of drum brake pads as described in claim 3, characterized in that, The third conveyor belt (52) is provided with a lifting section (521) in the middle for raising the height of the brake pads. A storage plate is provided at the discharge end of the third conveyor belt (52). A support platform (522) for supporting the brake pads is provided at the bottom end of the positioning plate (22). The height of the storage plate is not lower than the top surface of the support platform (522).

10. The combined grinding equipment for inner and outer arcs of drum brake pads as described in claim 1, characterized in that, The extrusion disc (21) is fitted on the outside of the rotating disc (2), and the positioning disc (22) is detachably mounted on the rotating disc (2).

Images