Multi-angle grinding lathe for brake pad

Abstract

The invention discloses a brake pad multi-angle grinding lathe and belongs to the technical field of brake pad grinding lathes, the brake pad multi-angle grinding lathe comprises a lathe bottom plate, a rotating part, a fixing part, a grinding part and a cooling part, a protective cover is fixedly connected to the upper surface of the lathe bottom plate, a door plate is hinged to the outer surface of the protective cover through a hinge, and the rotating part is arranged in the protective cover; two electromagnets are started through a control panel to generate a positive magnetic field, meanwhile, a magnetic sliding block generates negative magnetism, the magnetic sliding block is promoted to slide in a sliding rail, a grinding block is made to abut against a brake pad body, meanwhile, a driving motor and a rotating rod are matched with each other to drive the brake pad body to rotate, and therefore the brake pad body is ground; when the temperature sensor detects that the temperature exceeds a preset value, the control panel drives the electromagnet to generate a reverse electrode, the magnetic sliding block is promoted to drive the grinding block to move, a gap is generated between the grinding block and the brake pad body, and friction and heat generation are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of brake pad grinding lathes, and more specifically to a brake pad multi-angle grinding lathe. Background Art

[0002] Brake pad grinding lathe is a kind of professional mechanical equipment specially used for processing and repairing automobile brake pads (brake pads). It is suitable for large vehicles such as buses, heavy trucks, etc. It is mainly used to restore or improve the surface quality of brake pads, ensuring that the contact surface between brake pads and brake discs (or drums) is smooth and uniform, thereby improving braking effect and driving safety.

[0003] When the existing brake pad multi-angle grinding lathe is in use, the large brake pad used on buses or heavy trucks is placed on the lathe and fixed by a clamp. The relative position between the grinding head and the brake pad is adjusted by the position adjustment mechanism on the lathe to ensure that the grinding head or grinding disc is in contact with the surface of the brake pad. The motor is then started to drive the grinding head or grinding disc to grind it, thereby removing uneven parts or residues on the surface.

[0004] In actual use of the existing technology, the high temperature and strong friction generated during the grinding process may easily damage the grinding disc or brake pad, affecting the subsequent grinding quality of the brake pad. Therefore, in order to solve the above technical problems, it is necessary to provide a multi-angle grinding lathe for brake pads. Summary of the invention

[0005] The object of the present invention is to provide a brake pad multi-angle grinding lathe to solve the above-mentioned problems.

[0006] In order to achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows:

[0007] A multi-angle grinding lathe for brake pads, comprising a lathe base plate, a rotating part, a fixed part, a grinding part and a cooling part, wherein a protective cover is fixedly connected to the upper surface of the lathe base plate, a door panel is hinged to the outer surface of the protective cover by a hinge, the rotating part is arranged inside the protective cover, the rotating part comprises a driving motor fixedly mounted on the outer surface of the protective cover, an output shaft end of the driving motor is fixedly connected to a rotating rod by a coupling; the fixed part is arranged inside the rotating rod, the fixed part comprises an outer surface which can be rotatably inserted into the interior of the protective cover and is provided with a groove, a plurality of cylinders are fixedly connected to the outer surface of the groove, and an abutment plate is fixedly connected to one end of the cylinder.

[0008] The grinding part is arranged inside the protective cover, and the grinding part includes a slide rail opened on the top wall of the inner cavity of the protective cover, a pair of electromagnets are symmetrically connected inside the slide rail, and two magnetic sliders are slidably connected inside the slide rail, and the magnetic sliders are magnetically connected to the electromagnets, and grinding blocks are fixedly connected to the bottoms of the two magnetic sliders; the cooling part is arranged in the two grinding blocks, and the cooling part includes a cooling channel arranged inside the two grinding blocks, and a plurality of spray guns are arranged on the outer surface of the cooling channel.

[0009] As a further improvement of the present invention, the outer surface of the abutment plate abuts against the brake pad body, and the abutment plate firmly fixes the brake pad body on the rotating rod through a cylinder, ensuring that the brake pad body will not be displaced or shaken during the grinding process, thereby improving the grinding accuracy and reducing safety hazards during operation.

[0010] As a further improvement of the present invention, hoses are provided on the sides of the two grinding blocks, one ends of the two hoses are inserted into the outer surface of the protective cover and fixedly connected with connecting pipes, the cooling channel is S-shaped, and a refrigerator is provided on the outer surface of the connecting pipe, and the refrigerator is fixedly connected to the side of the protective cover through a fixed block. The coolant can be transported from the connecting pipe to the cooling channel in the grinding block through the hose, and the softness of the hose allows the grinding block to slide freely in the slide rail without affecting the position adjustment of the grinding block, thereby ensuring that the coolant can be smoothly transported to the grinding block and improving the cooling effect. The S-shaped cooling channel increases the flow path of the coolant and increases the contact area between the coolant and the grinding block.

[0011] As a further improvement of the present invention, a pump is provided on the outer surface of the connecting pipe, and a valve one is fixedly connected to the outer surface of the connecting pipe away from the refrigerator. The refrigerator will cool the coolant passing through the connecting pipe to a preset value, ensuring that the coolant is in a low temperature state before entering the grinding block, thereby improving the cooling effect. The pump can adjust the flow rate of the coolant to ensure sufficient supply of the coolant. At the same time, valve one is used to control the flow of the coolant, and the supply of the coolant can be closed or opened when needed.

[0012] As a further improvement of the present invention, a cleaning piece is provided inside the protective cover, and the cleaning piece includes a negative pressure vacuum cleaner fixedly connected to the outer surface of the protective cover, which effectively collects dust and debris generated during the grinding process to keep the working environment clean.

[0013] As a further improvement of the present invention, a dust suction pipe is provided on the outer surface of the negative pressure vacuum cleaner, one end of the dust suction pipe is inserted into the interior of the protective cover and is fixedly connected to a dust suction hood. The mutual cooperation between the dust suction pipe and the dust suction hood ensures that dust and debris can be efficiently collected, avoiding secondary dust flying, thereby preventing dust and debris from flying, reducing environmental pollution and health risks to operators.

[0014] As a further improvement of the present invention, the interior of the protective cover is slidably connected to a recycling box 2, and the outer surface of the recycling box 2 is fixedly connected to a door handle, which is easy to take out and put back through the recycling box 2, convenient for regular cleaning, ensuring the cleanliness of the interior of the device and avoiding dust accumulation that affects equipment performance.

[0015] As a further improvement of the present invention, a temperature sensor is fixedly connected to the inside of the slide rail, a control panel is provided on the outer surface of the protective cover, the temperature sensor is electrically connected to the control panel, and the electromagnet is electrically connected to the control panel. The temperature of the brake pad body during the grinding process can be monitored in real time through the temperature sensor to ensure that the temperature is always within a safe range, so that the control panel can automatically adjust the electromagnet and the cooling system according to the data of the temperature sensor to ensure the accuracy and timeliness of temperature control.

[0016] As a further improvement of the present invention, a discharge pipe is provided at the bottom of the negative pressure vacuum cleaner, and a recovery box is provided below the discharge pipe. The discharge pipe and the recovery box can ensure effective collection of dust and debris and avoid secondary flying of dust.

[0017] As a further improvement of the present invention, the other ends of the two hoses are connected to the cooling channel. The hoses are made of soft water pipes to ensure that the coolant can be smoothly transported to the cooling channel, so that it can continuously transport the coolant to the grinding block for cooling.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) This solution can fix the brake pad body on the rotating rod through the cylinder and the abutment plate, ensuring that the brake pad body will not be displaced or shaken during the grinding process, thereby improving the grinding accuracy and reducing safety hazards during operation.

[0020] (2) In this solution, the coolant is transported from the coolant supply source to the hose through the connecting pipe. At the same time, the coolant will be cooled to a preset value by the refrigerator when passing through the connecting pipe, and then transported to the cooling channel in the grinding block through the hose. The S-shaped cooling channel can increase the flow path of the coolant and improve the cooling effect.

[0021] (3) The dust and debris generated during the grinding process can be sucked into the negative pressure vacuum cleaner through the dust suction pipe and the dust suction hood, and the dust and debris can be transported to the recycling box 1 for storage through the discharge pipe. The remaining debris generated by the grinding will fall into the recycling box 2 and can be collected, thereby preventing the dust and debris from flying, reducing environmental pollution and health risks to operators.

[0022] (4) Two electromagnets are started through the control panel to generate a positive magnetic field, while the magnetic slider generates a negative magnetic field, which causes the magnetic slider to slide in the slide rail, so that the grinding block abuts against the brake pad body. At the same time, the brake pad body is driven to rotate through the cooperation of the driving motor and the rotating rod, so as to grind the brake pad body. Therefore, through the cooperation of the electromagnet and the magnetic slider, the angle and position of the grinding block can be accurately adjusted to achieve multi-angle grinding, ensuring the uniformity and consistency of the grinding surface.

[0023] (5) The temperature of the brake pad body during the grinding process is monitored in real time by a temperature sensor. When the temperature sensor detects that the temperature exceeds a preset value, the control panel drives the electromagnet to generate a reverse electrode, prompting the magnetic slider to drive the grinding block to move, so that a gap is generated between the grinding block and the brake pad body, thereby reducing friction and heat generation. At the same time, valve 1 is started to spray coolant onto the brake pad body and the grinding area through a spray gun, thereby further reducing the temperature. The control panel automatically adjusts the electromagnet according to the data from the temperature sensor to ensure an appropriate distance between the grinding block and the brake pad body, thereby reducing friction and heat generation, thereby further reducing the temperature through coolant spraying, thereby ensuring temperature stability during the grinding process.

[0024] (6) In this solution, when the brake pad body rotates, it collides with the sprayed coolant, and the coolant is dispersed into smaller droplets by the impact. These small droplets have a larger surface area and can evaporate and absorb heat more quickly, thereby improving the cooling effect. The small droplets generated by the impact form convection in the grinding area, that is, the droplets form a flow on the surface of the rotating brake pad body, thereby effectively taking away the heat, improving the cooling efficiency of the coolant, and avoiding local overheating.

[0025] (7) When the temperature sensor detects that the temperature has dropped below the preset value, the control panel drives the electromagnet to generate a positive electrode, causing the magnetic slider to slide in the slide rail, so that the two grinding blocks are re-contacted with the brake pad body and continue grinding, thereby ensuring that the temperature during the grinding process is always within the optimal range, thereby reducing the wear of the grinding blocks and the brake pad body and ensuring its grinding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the opening structure of the integral door panel of the present invention;

[0028] Figure 3 It is a cross-sectional view of the overall structure of the present invention;

[0029] Figure 4 It is a partial structural cross-sectional view of the whole of the present invention;

[0030] Figure 5 A cross-sectional view of the internal structure of the protective cover of the present invention;

[0031] Figure 6 For the present invention Figure 5 A magnified view of the structure at inner A;

[0032] Figure 7 A partial structural cross-sectional view of a cooling element of the present invention;

[0033] Figure 8 It is a schematic diagram of the structure of the grinding block of the present invention;

[0034] Fig. 9 It is a partial structural cross-sectional view of the grinding block of the present invention.

[0035] Description of the numbers in the figure:

[0036] 1. Lathe base plate; 2. Protective cover; 3. Door panel; 4. Rotating part; 401. Driving motor; 402. Rotating rod; 5. Fixed part; 501. Groove; 502. Cylinder; 503. Abutment plate; 504. Brake pad body; 6. Grinding part; 601. Slide rail; 602. Electromagnet; 603. Magnetic slider; 604. Grinding block; 7. Cooling part; 701. Cooling channel; 702. Spray gun; 703. Hose; 704. Connecting pipe; 705. Refrigerator; 8. Cleaning part; 801. Negative pressure vacuum cleaner; 802. Dust pipe; 803. Dust hood; 804. Discharge pipe; 805. Recycling box one; 806. Recycling box two; 9. Temperature sensor. DETAILED DESCRIPTION

[0037] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0038] The first implementation method:

[0039] See also Figure 1-Figure 9 A multi-angle grinding lathe for brake pads includes a lathe base plate 1, a rotating part 4, a fixed part 5, a grinding part 6 and a cooling part 7. A protective cover 2 is fixedly connected to the upper surface of the lathe base plate 1. A door panel 3 is hinged to the outer surface of the protective cover 2 through a hinge. The rotating part 4 is arranged inside the protective cover 2. The rotating part 4 includes a driving motor 401 fixedly mounted on the outer surface of the protective cover 2. The output shaft end of the driving motor 401 is fixedly connected to a rotating rod 402 through a coupling. The fixed part 5 is arranged inside the rotating rod 402.

[0040] The fixing member 5 includes an outer surface that can be rotatably inserted into the interior of the protective cover 2 and is provided with a groove 501. The outer surface of the groove 501 is fixedly connected to a plurality of cylinders 502. One end of the cylinder 502 is fixedly connected to an abutment plate 503. The grinding member 6 is arranged inside the protective cover 2. The grinding member 6 includes a slide rail 601 opened on the top wall of the inner cavity of the protective cover 2. A pair of electromagnets 602 are symmetrically connected inside the slide rail 601. The slide rail 601 is slidably connected to two magnetic sliders 603. The magnetic sliders 603 are magnetically connected to the electromagnets 602. The bottoms of the two magnetic sliders 603 are fixedly connected to grinding blocks 604. The magnetic sliders 603 is a mechanical component that uses magnetic force for positioning and movement. It is usually made of magnetic material and can slide on a slide rail or other fixed structure. It can achieve precise position adjustment through the control of an external magnetic field. The two electromagnets 602 are started through the control panel to generate a positive magnetic field. At the same time, the magnetic slider 603 generates a negative magnetic field, which causes the magnetic slider 603 to slide in the slide rail 601, so that the grinding block 604 abuts against the brake pad body 504, and the position of the grinding disc is adjusted. Therefore, the angle and position of the grinding block 604 can be accurately adjusted to achieve multi-angle grinding and ensure the uniformity and consistency of the grinding surface.

[0041] Specifically, the outer surface of the abutment plate 503 abuts against the brake pad body 504, and the interior of the slide rail 601 is fixedly connected with a temperature sensor 9, which is an electronic component that can sense temperature changes and convert them into electrical signal outputs. A control panel is provided on the outer surface of the protective cover 2, and the temperature sensor 9 is electrically connected to the control panel, and the electromagnet 602 is electrically connected to the control panel.

[0042] Further, the air cylinder 502 is started, so that the abutment plate 503 firmly fixes the brake pad body 504 on the rotating rod 402, and at the same time, the connecting pipe 704 is connected to the coolant supply source, and then the pump is started to allow the coolant to enter the connecting pipe 704, and the coolant entering the connecting pipe 704 can be cooled by the refrigerator 705, and then it is transported to the cooling channel 701 in the grinding block 604 through the hose 703, and the two electromagnets 602 are started to generate a positive magnetic field. At the same time, the magnetic slider 603 generates negative magnetism, which prompts the two magnetic sliders 603 to drive the grinding block 604 to abut against the brake pad body 504, so that the grinding block 604 abuts against the brake pad body 504, and then start the driving motor 401. The driving motor 401 drives the rotating rod 402 to rotate through the coupling, so that the brake pad body 504 rotates, and the grinding block 604 grinds the brake pad body 504. The brake pad body 504 can be rotated to achieve multi-angle grinding, thereby improving its grinding effect.

[0043] The second implementation method:

[0044] Reference Figure 1-Figure 9 , which is a new second embodiment of the present invention, is based on the previous embodiment, and the cooling member 7 is arranged in the two grinding blocks 604, and the cooling member 7 includes a cooling channel 701 arranged inside the two grinding blocks 604, and a plurality of spray guns 702 are arranged on the outer surface of the cooling channel 701.

[0045] Specifically, hoses 703 are provided on the sides of the two grinding blocks 604, one end of the two hoses 703 is inserted into the outer surface of the protective cover 2 and fixedly connected with a connecting pipe 704, the cooling channel 701 is S-shaped, and a refrigerator 705 is provided on the outer surface of the connecting pipe 704. The refrigerator 705 is a device for reducing the temperature of a fluid (such as a gas or a liquid), and transfers heat from one place to another place by physical or chemical methods, so as to achieve the purpose of cooling. The refrigerator 705 is fixedly connected to the side of the protective cover 2 through a fixed block, a pump is provided on the outer surface of the connecting pipe 704, and a valve 1 is fixedly connected to the outer surface of the connecting pipe 704 away from the refrigerator 705. The valve 1 can control the flow of coolant to ensure that the coolant enters the grinding block 604 when needed and cuts off the supply when not needed.

[0046] A cleaning piece 8 is provided inside the protective cover 2, and the cleaning piece 8 includes a negative pressure vacuum cleaner 801 fixedly connected to the outer surface of the protective cover 2. The negative pressure vacuum cleaner 801 is a device that uses the negative pressure principle to collect and remove dust, debris and other particulate matter. The core component of the negative pressure vacuum cleaner 801 is the vacuum motor, which is usually an electric motor or a vacuum pump. After the vacuum motor is started, it generates a strong suction force through high-speed rotation, forming a negative pressure (i.e., a pressure lower than atmospheric pressure), that is, an air pressure environment lower than atmospheric pressure. The dust and debris generated by grinding inside the protective cover 2 can be sucked into the dust cover 803 through the negative pressure.

[0047] The outer surface of the negative pressure vacuum cleaner 801 is provided with a dust suction pipe 802, one end of the dust suction pipe 802 is inserted into the interior of the protective cover 2 and fixedly connected to the dust suction cover 803, the interior of the protective cover 2 is slidably connected to a recycling box 806, and the outer surface of the recycling box 806 is fixedly connected to a door handle, and the bottom of the negative pressure vacuum cleaner 801 is provided with a discharge pipe 804, and a recycling box 805 is provided below the discharge pipe 804. The dust and debris sucked in are transported to the discharge pipe 805 through the negative pressure vacuum cleaner 801 through the dust suction cover 803. 04, and then falls into a recycling box 805 for centralized storage; the other ends of the two hoses 703 are connected to the cooling channel 701, and the hoses 703 are made of soft water pipes, so that the hoses 703 allow the grinding blocks 604 to slide freely in the slide rails 601 without being restricted by the rigidity of the pipes, thereby ensuring the flexibility of multi-angle grinding, and the movement of the grinding blocks 604 will not be affected by the rigidity of the pipes. At the same time, the soft water pipe material has good wear resistance and aging resistance, which reduces the wear of the hoses 703 during the sliding process.

[0048] Furthermore, the temperature of the brake pad body 504 during the grinding process can be monitored in real time through the temperature sensor 9 in the slide rail 601. When the temperature sensor 9 detects that the temperature exceeds the preset value, the control panel drives the electromagnet 602 to generate a reverse electrode, prompting the magnetic slider 603 to drive the grinding block 604 to move, so that a gap is generated between the grinding block 604 and the brake pad body 504, reducing friction and heat generation. At the same time, valve 1 is activated to spray coolant onto the brake pad body 504 and the grinding area through the spray gun 702, further reducing the temperature. When the brake pad body 504 rotates, it collides with the sprayed coolant, and the coolant is dispersed into smaller droplets by the impact. These small droplets have a larger surface area and can evaporate and absorb heat faster, thereby improving the cooling effect. When the temperature sensor 9 detects that the temperature has dropped here, it will be transmitted to the control panel, causing the electromagnet 602 to generate a forward motor, thereby prompting the magnetic slider 603 to slide in the slide rail 601, causing the two grinding blocks 604 to re-contact the brake pad body 504 to continue grinding it. The negative pressure vacuum cleaner 801 sucks the dust and debris generated during the grinding process into the negative pressure vacuum cleaner 801 through the dust suction pipe 802 and the dust hood 803, and transports it to the recovery box 805 for storage through the discharge pipe 804 below the negative pressure vacuum cleaner 801.

[0049] The working principle of the present invention is as follows: the grinding lathe is opened through the door panel 3, the brake pad body 504 to be ground is placed on the rotating rod 402, and then the cylinder 502 is started through the control panel, so that the abutment plate 503 firmly fixes the brake pad body 504 on the rotating rod 402, and at the same time, the connecting pipe 704 is connected to the coolant supply source, and then the pump is started to allow the coolant to enter the connecting pipe 704, and the coolant entering the connecting pipe 704 can be cooled by the refrigerator 705, and then it is transported to the cooling channel 701 in the grinding block 604 through the hose 703, so that it can cool the grinding block 604.

[0050] Subsequently, the two electromagnets 602 are started, so that the two electromagnets 602 generate a positive magnetic field, and the magnetic slider 603 generates a negative magnetic field, thereby prompting the two magnetic sliders 603 to slide in the slide rail 601, so that the two magnetic sliders 603 drive the grinding block 604 to abut against the brake pad body 504, so that the grinding block 604 abuts against the brake pad body 504, and then the drive motor 401 is started through the control panel, and the drive motor 401 drives the rotating rod 402 to rotate through the coupling, so that the brake pad body 504 rotates, and the grinding block 604 grinds the brake pad body 504. The brake pad body 504 can be ground at multiple angles by rotating it, thereby improving its grinding effect.

[0051] The temperature of the brake pad body 504 during the grinding process can be monitored in real time through the temperature sensor 9 in the slide rail 601. When the temperature sensor 9 detects that the temperature exceeds the preset value, the control panel drives the electromagnet 602 to generate a reverse electrode, prompting the magnetic slider 603 to drive the grinding block 604 to move, so that a gap is generated between the grinding block 604 and the brake pad body 504, reducing friction and heat generation. At the same time, valve 1 is activated to allow the coolant to be sprayed onto the brake pad body 504 and the grinding area through the spray gun 702, further reducing the temperature. When the brake pad body 504 rotates, it collides with the sprayed coolant, and the coolant is dispersed into smaller droplets by the impact. These small droplets have a larger surface area and can evaporate and absorb heat faster, thereby improving the cooling effect. At the same time, the small droplets generated by the impact will form convection in the grinding area, that is, the droplets flow on the surface of the rotating brake pad body 504, thereby effectively taking away heat, improving the cooling efficiency of the coolant, and avoiding local overheating.

[0052] Furthermore, when the temperature sensor 9 detects that the temperature has dropped here, it will be transmitted to the control panel, causing the electromagnet 602 to generate a forward motor, thereby prompting the magnetic slider 603 to slide in the slide rail 601, so that the two grinding blocks 604 are in contact with the brake pad body 504 again, so that it continues to grind it, and at the same time start the negative pressure vacuum cleaner 801, the negative pressure vacuum cleaner 801 sucks the dust and debris generated during the grinding process into the negative pressure vacuum cleaner 801 through the dust suction pipe 802 and the dust hood 803, and transports it to the recycling box 805 for storage through the discharge pipe 804 below the negative pressure vacuum cleaner 801. After grinding, turn off the drive motor 401 and the negative pressure vacuum cleaner 801, and start the cylinder 502 to drive the abutment plate 503 to loosen the brake pad body 504, so that the polished brake pad body 504 can be taken out, and work is carried out in this way.

[0053] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0054] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that those skilled in the art can understand.

Claims

1. A brake pad multi-angle grinding lathe, characterized in that: include: A lathe bottom plate (1), the upper surface of the lathe bottom plate (1) being fixedly connected to a protective cover (2), the outer surface of the protective cover (2) being hinged to a door panel (3) via a hinge, A rotating member (4) is arranged inside the protective cover (2), the rotating member (4) comprising a driving motor (401) fixedly mounted on the outer surface of the protective cover (2), the output shaft end of the driving motor (401) being fixedly connected to a rotating rod (402) via a coupling; A fixing member (5) is arranged inside the rotating rod (402), the fixing member (5) comprising an outer surface which is rotatably inserted into the interior of the protective cover (2) and is provided with a groove (501), the outer surface of the groove (501) is fixedly connected to a plurality of cylinders (502), and one end of the cylinder (502) is fixedly connected to an abutment plate (503); A grinding piece (6) is arranged inside the protective cover (2), the grinding piece (6) comprises a slide rail (601) opened on the top wall of the inner cavity of the protective cover (2), a pair of electromagnets (602) are symmetrically connected inside the slide rail (601), two magnetic sliders (603) are slidably connected inside the slide rail (601), the magnetic sliders (603) are magnetically connected to the electromagnets (602), and the bottoms of the two magnetic sliders (603) are fixedly connected with grinding blocks (604); A cooling member (7) is arranged inside the two grinding blocks (604), and the cooling member (7) comprises a cooling channel (701) arranged inside the two grinding blocks (604), and a plurality of spray guns (702) are arranged on the outer surface of the cooling channel (701).

2. A brake pad multi-angle grinding lathe according to claim 1, characterized in that: The outer surface of the abutment plate (503) abuts against the brake pad body (504).

3. The multi-angle grinding lathe for brake pads according to claim 1, characterized in that: A hose (703) is provided on the side of the two grinding blocks (604), one end of the two hoses (703) is inserted into the outer surface of the protective cover (2) and fixedly connected to a connecting pipe (704), the cooling channel (701) is S-shaped, and a refrigerator (705) is provided on the outer surface of the connecting pipe (704), and the refrigerator (705) is fixedly connected to the side of the protective cover (2) through a fixing block.

4. A brake pad multi-angle grinding lathe according to claim 3, characterized in that: A pump is provided on the outer surface of the connecting pipe (704), and a valve 1 is fixedly connected to the outer surface of the connecting pipe (704) away from the refrigerator (705).

5. The multi-angle grinding lathe for brake pads according to claim 1, characterized in that: A cleaning piece (8) is arranged inside the protective cover (2), and the cleaning piece (8) comprises a negative pressure vacuum cleaner (801) fixedly connected to the outer surface of the protective cover (2).

6. A brake pad multi-angle grinding lathe according to claim 5, characterized in that: The outer surface of the negative pressure vacuum cleaner (801) is provided with a vacuum tube (802), and one end of the vacuum tube (802) is inserted into the interior of the protective cover (2) and is fixedly connected to a vacuum cover (803).

7. The multi-angle grinding lathe for brake pads according to claim 1, characterized in that: The interior of the protective cover (2) is slidably connected to a second recycling box (806), and the outer surface of the second recycling box (806) is fixedly connected to a door handle.

8. The brake pad multi-angle grinding lathe according to claim 1, characterized in that: A temperature sensor (9) is fixedly connected to the interior of the slide rail (601), a control panel is provided on the outer surface of the protective cover (2), the temperature sensor (9) is electrically connected to the control panel, and the electromagnet (602) is electrically connected to the control panel.

9. The brake pad multi-angle grinding lathe according to claim 6, characterized in that: A discharge pipe (804) is provided at the bottom of the negative pressure vacuum cleaner (801), and a recovery box (805) is provided below the discharge pipe (804).

10. The brake pad multi-angle grinding lathe according to claim 3, characterized in that: The other ends of the two hoses (703) are connected to the cooling channel (701), and the hoses (703) are made of soft water pipes.

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