Polishing device for automobile brake pad

Abstract

The grinding device for the automobile brake pad comprises a shell, a grinding roller is erected at the upper end of the shell, a plurality of spiral open grooves are distributed in the side wall of the grinding roller, a jig is arranged at the upper end of the shell in a sliding mode, and the jig comprises a frame and a fixing rod; the frame is in sliding fit with a sliding groove formed in the upper end of the shell, a plurality of threaded holes are formed in the two sides of the upper end of the frame, threaded rods are arranged in the threaded holes in a matched mode, adjusting nuts are arranged on the threaded rods in a threaded fit mode, and the two ends of the fixing rod are connected to the threaded rods in a sleeving mode and borne on the adjusting nuts. A plurality of fan-shaped through holes are formed in the fixing rod, and a handle is arranged on one side of the frame. According to the grinding device, the jig is arranged, grinding operation can be conducted in batches, meanwhile, the dust collecting chamber and other structures are arranged, and dissipation of dust is reduced.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment technology, and more particularly to a grinding equipment for automotive brake pads. Background Technology

[0002] Automotive brake pads, also known as brake linings, are friction materials fixed to the brake drum or brake disc that rotates with the wheel. The friction linings and friction blocks withstand external pressure, generating friction to slow the vehicle down. Automotive brake pads generally consist of a steel plate, an adhesive heat-insulating layer, and friction blocks. The steel plate is coated to prevent rust.

[0003] During the production process, the friction blocks are bonded to the back plate with adhesive, and then heat-treated to cure the adhesive. After cooling, factors such as stress release and thermal expansion and contraction cause unevenness on the surface of the friction blocks, so grinding is required to ensure smooth contact between the friction blocks and the brake disc. Summary of the Invention

[0004] To address the aforementioned problems, this invention discloses a grinding device for automotive brake pads, comprising a housing, a grinding roller mounted on the upper end of the housing, and a plurality of spiral grooves distributed on the sidewall of the grinding roller. A fixture is slidably mounted on the upper end of the housing. The brake pad is fixed to the fixture and then fed under the grinding roller for grinding, thereby improving the surface flatness of the brake pad.

[0005] The fixture includes a frame and a fixing rod. The frame and the upper end of the housing are slidably fitted with a groove. Several threaded holes are formed on both sides of the upper end of the frame, and screws are fitted into these holes. Adjusting nuts are threaded onto the screws. The two ends of the fixing rod are sleeved on the screws and supported by the adjusting nuts. Several fan-shaped through holes are formed on the fixing rod. A handle is provided on one side of the frame. The brake pads are secured in the through holes by a snap-fit ​​mechanism. Using the fixing rod enables batch grinding. However, after prolonged operation, the grinding roller wears down, reducing its diameter. Since the relative position of the fixture and the housing remains unchanged, the grinding roller and brake pads may not contact each other during grinding. The screw and adjusting nut are used to fix the height and position of the fixing rod. The fixture is then pulled back and forth by the handle, causing the brake pads to move back and forth across the grinding roller, completing the grinding of the friction blocks. This manual operation greatly simplifies the fixture's structure.

[0006] Preferably, a dust collection chamber is provided at the upper part of the housing, and an opening is provided at the upper end of the housing, which communicates with the dust collection chamber. During the polishing process, the dust generated enters the dust collection chamber through the opening, reducing air pollution.

[0007] Preferably, a fan is fixedly connected to the upper part of one side of the housing. The air inlet of the fan is equipped with a dust filter and is connected to the dust collection chamber. When the fan is turned on, the dust collection chamber is under negative pressure, drawing air in from the opening to achieve the function of dust suction. The dust filter prevents dust from passing through the fan.

[0008] Preferably, a dust collection drawer is interspersed on the front of the housing, and the dust collection drawer is located at the bottom of the dust collection chamber. The dust collection drawer is used to collect dust that falls during polishing.

[0009] Preferably, a drive motor is fixedly connected to the lower part of the housing, a first pulley is fixedly connected to the output end of the drive motor, and a second pulley is fixedly connected to the end shaft of the grinding roller. A belt is sleeved on the first and second pulleys. When the drive motor is started, the grinding roller is driven to rotate via the first pulley, belt, and second pulley.

[0010] Preferably, the outer sides of the first pulley, the second pulley, and the belt are covered with a second protective cover. The second protective cover increases the safety of the device operation.

[0011] Preferably, a first protective cover is rotatably connected to the upper end of the housing. The first protective cover has a cross-sectional shape of a fan shape exceeding 180°, and a portion of it is housed inside the housing. During polishing, the cover rotates to cover the upper end of the housing. When removing or placing the brake pads, the first protective cover is rotated open, while the second protective cover retracts inside the housing.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. The fixture is equipped with a jig on which several brake pads are fixed, enabling batch processing and improving grinding efficiency. In addition, the jig is equipped with a screw and an adjusting nut, which controls the height of the brake pads on the fixing rod to adjust the distance between the brake pads and the grinding roller, ensuring thorough grinding, especially when the grinding rollers are worn, and reducing the complexity of the jig.

[0014] 2. It is equipped with a first protective cover, dust collection chamber, fan, dust collection drawer and other structures. The dust generated by grinding can be sucked into the dust collection chamber and fall into the dust collection drawer, which greatly reduces the spread of dust. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 This is a three-dimensional schematic diagram of the present invention without a protective cover;

[0017] Figure 3 This is a three-dimensional schematic diagram of the fixture of the present invention;

[0018] Figure 4This is a schematic diagram of the screw section of the present invention.

[0019] List of reference numerals in the attached diagram:

[0020] 1. Housing; 2. Fan; 3. Dust collection drawer; 4. Fixture; 5. First protective cover; 6. Second protective cover; 7. First pulley; 8. Drive motor; 9. Belt; 10. Second pulley; 11. Grinding roller; 12. Opening;

[0021] 41. Frame; 42. Screw; 43. Fixing rod; 44. Handle; 45. Adjusting nut. Detailed Implementation

[0022] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0023] like Figures 1 to 4 As shown, a grinding device for automotive brake pads includes a housing 1, which is a rectangular thin shell with internal support rods. A grinding roller 11 is mounted on the upper end of the housing 1. The grinding roller 11 is used for grinding brake pads. Several spiral grooves are distributed on the side wall of the grinding roller 11. The grooves promote airflow, thereby avoiding heat accumulation and reducing the weight of the grinding roller 11. A fixture 4 is slidably mounted on the upper end of the housing 1. The fixture 4 is used to fix the brake pads. During the grinding operation, the fixture 4 needs to be manually pulled back and forth to make the brake pads reciprocate under the grinding roller 11, thereby improving the flatness of the friction block surface.

[0024] The fixture 4 includes a frame 41 and a fixing rod 43. The frame 41 and the upper end of the housing 1 are slidably fitted with a groove, thereby positioning the frame 41 and facilitating its forward and backward sliding. Several threaded holes are formed on both sides of the upper end of the frame 41, and screws 42 are fitted into these holes. Adjusting nuts 45 are threaded onto the screws 42. Both ends of the fixing rod 43 are sleeved on the screws 42 and supported by the adjusting nuts 45. During the grinding process, the grinding roller 11 will experience wear, and the height of the frame 41 will be reduced. Due to limitations, a gap appears between the brake pad on fixture 4 and the grinding roller 11, making grinding impossible. At this time, the height of the adjusting nut 45 is changed by rotating it, thereby changing the height of the fixing rod 43. Several fan-shaped through holes are opened on the fixing rod 43, which are used to engage the brake pad. By changing the height of the fixing rod 43, the distance between the brake pad and the grinding roller 11 is adjusted. A handle 44 is provided on one side of the frame 41. When performing grinding operations, the fixture 4 is pulled by the handle 44, thereby realizing the reciprocating motion of the fixture 44 and completing the grinding operation.

[0025] The upper part of the housing 1 is provided with a dust collection chamber for collecting dust generated during grinding, and the upper end of the housing 1 is provided with an opening 12, which is connected to the dust collection chamber. The dust generated during grinding enters the dust collection chamber through the opening 12.

[0026] A fan 2 is fixedly connected to the upper part of one side of the housing 1. The air inlet of the fan 2 is equipped with a dust filter to prevent dust from entering the fan 2 and escaping into the air. It is also connected to the dust collection chamber. When the fan 2 is turned on, the dust collection chamber is in a negative pressure state and the dust generated by grinding is sucked in from the opening 12.

[0027] A dust collection drawer 3 is interspersed on the front of the housing 1, and the dust collection drawer 3 is located at the bottom of the dust collection chamber. The dust entering the dust collection chamber eventually falls into the dust collection drawer 3, which is conducive to centralized treatment.

[0028] A drive motor 8 is fixedly connected to the lower part of the housing 1. A first pulley 7 is fixedly connected to the output end of the drive motor 8. A second pulley 10 is fixedly connected to the end shaft of the grinding roller 11. A belt is sleeved on the first pulley 7 and the second pulley 10. When the drive motor 8 is started, the grinding roller 11 is driven to rotate through the first pulley 7, the second pulley 10 and the belt 9.

[0029] A second protective cover 6 is provided on the outer side of the first pulley 7, the second pulley 10, and the belt 9. The second protective cover 6 is fixed to the housing 1 and improves the safety of the device.

[0030] A first protective cover 5 is rotatably connected to the upper end of the housing 1. The cross-sectional shape of the first protective cover 5 is a fan shape exceeding 180°, and part of it is housed inside the housing 1. The first protective cover 5 seals the grinding area to prevent dust from escaping. Rotating and opening the first protective cover 5 is for taking out and putting in the brake pads.

[0031] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A grinding device for automotive brake pads, characterized in that, Includes a housing (1), with a grinding roller (11) mounted on the upper end of the housing (1), and a plurality of spiral grooves distributed on the side wall of the grinding roller (11), and a fixture (4) slidably mounted on the upper end of the housing (1). The fixture (4) includes a frame (41) and a fixing rod (43), and the frame (41) and the upper end of the housing (1) are slidably fitted with a groove. Several threaded holes are opened on both sides of the upper end of the frame (41), and screws (42) are fitted in the threaded holes. Adjusting nuts (45) are threadedly fitted on the screws (42). The two ends of the fixing rod (43) are sleeved on the screws (42) and supported on the adjusting nuts (45). Several fan-shaped through holes are opened on the fixing rod (43). A handle (44) is provided on one side of the frame (41).

2. The grinding device for automotive brake pads according to claim 1, characterized in that: The upper part of the housing (1) is provided with a dust collection chamber, and the upper end of the housing (1) is provided with an opening (12), which is connected to the dust collection chamber.

3. The grinding device for automotive brake pads according to claim 2, characterized in that: A fan (2) is fixedly connected to the upper part of one side of the housing (1). The air inlet of the fan (2) is equipped with a dust filter and is connected to the dust collection chamber.

4. A grinding device for automotive brake pads according to claim 2, characterized in that: A dust collection drawer (3) is interspersed on the front of the housing (1), and the dust collection drawer (3) is located at the bottom of the dust collection chamber.

5. A grinding device for automotive brake pads according to claim 1, characterized in that: A drive motor (8) is fixedly connected to the lower part of the housing (1), and a first pulley (7) is fixedly connected to the output end of the drive motor (8). A second pulley (10) is fixedly connected to the end shaft of the grinding roller (11), and the first pulley (7) and the second pulley (10) are sleeved on each other.

6. A grinding device for automotive brake pads according to claim 5, characterized in that: The outer sides of the first pulley (7), the second pulley (10) and the belt (9) are covered with a second protective cover (6).

7. A grinding device for automotive brake pads according to claim 1, characterized in that: The upper end of the housing (1) is rotatably connected to a first protective cover (5), the cross-sectional shape of the first protective cover (5) is a fan shape exceeding 180°, and a part of it is housed inside the housing (1).

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