A kind of brake disc opening site grinding device

Abstract

This invention relates to the field of brake disc grinding technology and discloses a grinding device for the opening portion of a brake disc, including a base. A rotating shaft is rotatably connected to the inner surface of the base, and a chuck is fixedly connected to the top end of the rotating shaft. The chuck is used to hold the brake disc, and a clamping block is provided on the inner surface of the chuck for clamping the edge of the brake disc. A pressure block is provided at the top end of the clamping block for pressing down on the top edge of the brake disc. In this invention, the chuck drives the brake disc to rotate, thereby aligning the un-grinded opening with the grinding head, and then grinding multiple openings. The clamping block clamps the edge of the brake disc, making the grinding process more stable and improving the grinding accuracy. The pressure block moves above the brake disc and presses it down, making the brake disc more stably fixed on the chuck, further improving the grinding stability.

Description

Technical Field

[0001] This invention relates to the field of brake disc grinding technology, specifically to a grinding device for the opening portion of a brake disc. Background Technology

[0002] After the brake disc is drilled, burrs, sharp edges or micro-cracks often exist on the edge of the hole, which affects braking performance and safety. Traditional grinding relies on manual operation, which is inefficient and inconsistent. Some automated equipment is only for grinding flat surfaces or outer edges, which is difficult to adapt to complex hole structures. In the existing technology, fixed grinding heads are often used in conjunction with rotating tooling, but the adjustment flexibility is insufficient, which can easily lead to uneven grinding or over-cutting.

[0003] Patent CN117066990A discloses a brake disc grinding device. This patent includes a grinding machine body with a placement table connected inside. A cylinder is connected inside the placement table, and a pressure block is connected to the output end of the cylinder. In this brake disc grinding device, when processing a brake disc, two sliding plates are first placed on the same side inside the brake disc, and a pressure plate is placed on top of the brake disc. Then, one of the sliding plates is rotated so that the two sliding plates are positioned on either side of the brake disc. The operator can then grasp the two sliding plates to lift the brake disc. After lifting the brake disc, the perforation on the top of the pressure plate is aligned with the pressure block. The brake disc is then placed on the placement table. After the pressure block passes through the perforation, the brake disc is rotated 90 degrees by the sliding plate to misalign the perforation with the pressure block. The cylinder is then activated to lower the pressure block, thus fixing the brake disc. Removing the brake disc is done in reverse. The operation is simple and convenient. Although this patent solves the above problems, it still suffers from insufficient flexibility in adjusting the clamping device, which can easily affect grinding accuracy. Therefore, a brake disc opening part grinding device is proposed to solve the aforementioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a grinding device for the opening part of the brake disc, which addresses the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a grinding device for the opening part of a brake disc, comprising:

[0006] A base, wherein a rotating shaft is rotatably connected to the inner surface of the base, and a chuck is fixedly connected to the top end of the rotating shaft. The chuck is used to place a brake disc, and a clamping block is provided on the inner surface of the chuck. The clamping block is used to clamp the edge of the brake disc, and a pressure block is provided at the top end of the clamping block. The pressure block is used to press down the top edge of the brake disc.

[0007] A cleaning device is disposed above the chuck and is used to remove hard-to-clean debris adhering to the upper surface of the chuck.

[0008] A collection device is installed above the base and is used to collect debris and coolant for subsequent recycling.

[0009] As a further technical solution, the chuck includes;

[0010] A connecting block, which is fixedly connected to the lower surface of the chuck;

[0011] Elastic telescopic rod one, which is fixedly connected to the lower surface of the pressure block, is used to adjust the height of the pressure block;

[0012] As a further technical solution, the chuck also includes;

[0013] The card slot is formed inside the chuck, and a card block is slidably connected to the inner surface of the card slot. The card block is used to fix the clamping block.

[0014] A through groove is formed on the circumferential surface of the chuck, and a lever is slidably connected to the inner surface of the through groove. The lever is used to push the chuck block into the chuck groove.

[0015] As a further technical solution, a motor is fixedly connected to the bottom end of the rotating shaft, and the motor is fixedly connected to the lower surface of the base. The elastic telescopic rod is fixedly connected to the inner surface of the clamping block. A spring is provided between the clamping block and the clamping slot. The paddle is fixedly connected to the side surface of the clamping block.

[0016] As a further technical solution, the cleaning device includes:

[0017] A support plate is fixedly connected to the upper surface of the base. An adjustment plate is hinged to the top of the support plate, and a U-shaped slide rail is fixedly connected to the side of the adjustment plate near the chuck.

[0018] A slider is slidably connected to the inner surface of a U-shaped slide rail. A slide rod is fixedly connected to the bottom end of the slider, and a brush is fixedly connected to the lower surface of the slide rod. The brush is used to remove debris adhering to the upper surface of the chuck.

[0019] As a further technical solution, the cleaning device also includes;

[0020] A convex plate is fixedly connected to the top of the adjusting plate, and an elastic telescopic rod is fixedly connected to the side of the convex plate near the slider.

[0021] A connecting plate is fixedly connected to the end of the slide rod away from the chuck, and an abutment rod is fixedly connected to the side of the connecting plate near the adjusting plate;

[0022] A cam is fixedly connected to the circumferential surface of the chuck, and the cam is used to push the abutment rod to reciprocate.

[0023] As a further technical solution, the brush and the upper surface of the chuck abut against each other, the slide rod slides from the side of the adjusting plate near the chuck through the side of the adjusting plate away from the chuck, the upper surface of the slide rod and the lower surface of the U-shaped slide rail are slidably connected, the end of the elastic telescopic rod away from the convex plate is fixedly connected to the slider, and the abutting rod slides from the side of the adjusting plate away from the chuck through the side of the adjusting plate near the chuck.

[0024] As a further technical solution, the collection device includes;

[0025] A receiving frame is fixedly connected to the upper surface of the base, and the receiving frame is used to collect debris and coolant.

[0026] A connecting rod is fixedly connected to the side surface of the adjusting plate, and a guide plate is hinged to the circumferential surface of the connecting rod. The guide plate is used to guide the debris and coolant.

[0027] As a further technical solution, the collection device also includes;

[0028] A filter screen is fixedly connected to the bottom of the inner surface of the receiving frame, and the filter screen is used to filter and separate debris and coolant.

[0029] A transmission rod is fixedly connected to the lower surface of the abutment rod. A sliding plate is fixedly connected to the bottom end of the transmission rod, and a scraper is fixedly connected to the bottom end of the sliding plate.

[0030] As a further technical solution, the sliding plate is slidably connected to the inner surface of the receiving frame, the scraper is slidably connected to the inner surface of the receiving frame, and the scraper abuts against the upper surface of the filter screen.

[0031] The present invention, by adopting the above technical solution, can bring the following beneficial effects:

[0032] 1. This brake disc opening grinding device uses a chuck to rotate the brake disc, aligning the un-grinded opening with the grinding head for grinding multiple openings. A clamping block holds the edge of the brake disc, ensuring stability and improving grinding precision. A pressure block moves above the brake disc, pressing it down for a more stable fixation on the chuck, further enhancing grinding stability. The elastic extension rod pulls the pressure block to continuously conform to the brake disc, adapting to different brake disc thicknesses and improving the device's applicability. The clamping block slides within the slot and moves away from the clamping block; rotating the clamping block removes the brake disc's limit, facilitating quick disassembly and improving ease of use. Finally, the clamping block pops out of the slot, securing the clamping block between the chuck and the clamping block, further enhancing ease of use.

[0033] 2. The grinding device for the opening of the brake disc involves attaching the brush to the chuck, then starting the motor. The motor drives the rotating shaft and chuck to rotate continuously, while the brush sweeps away debris through friction, preventing debris from adhering to the chuck. The adjusting plate moves the sliding rod and brush vertically away from the chuck, thereby quickly retracting the brush for subsequent grinding and improving work efficiency.

[0034] 3. The grinding device for the opening of the brake disc has an elastic telescopic rod 2 that pushes the slider away from the convex plate. The slider then drives the slide rod to slide in the opposite direction. As the cam continues to rotate, the slide rod slides back and forth. The slide rod then drives the brush to slide back and forth, which increases the friction between the brush and the chuck and improves the brush's ability to remove debris.

[0035] 4. The grinding device for the opening of the brake disc allows the debris swept away by the brush to fall into the receiving frame along the guide plate for quick collection and convenient subsequent recycling. At the same time, the coolant sprayed onto the brake disc during the grinding process flows down the guide plate and debris together into the filter screen in the receiving frame, thus facilitating the simultaneous cleaning of debris and coolant.

[0036] 5. The grinding device for the opening of the brake disc allows coolant to flow onto the filter screen and then fall through the mesh, while debris is blocked by the filter screen and thus separated, further improving the efficiency of subsequent processing. The scraper slides back and forth on the filter screen, pushing the debris on the filter screen to both ends to collect, preventing debris from quickly filling the filter screen and causing blockage, which would affect the efficiency of subsequent processing. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0038] Figure 2 This is a three-dimensional half-section diagram of the side bottom surface of the base of the present invention;

[0039] Figure 3 This is a three-dimensional half-section diagram of the front side of the chuck of the present invention;

[0040] Figure 4 For the present invention Figure 3 A magnified structural diagram of A in the middle;

[0041] Figure 5 This is a three-dimensional structural diagram of the front side of the cleaning device of the present invention;

[0042] Figure 6 For the present invention Figure 5 A magnified structural diagram of B in the diagram;

[0043] Figure 7 This is a three-dimensional structural diagram of the left side of the collecting device of the present invention;

[0044] Figure 8 For the present invention Figure 7 A magnified structural diagram of C.

[0045] In the diagram: 1. Base; 2. Rotating shaft; 3. Chuck; 4. Clamping block; 5. Pressing block; 6. Sweeping device; 7. Collecting device; 8. Connecting block; 9. Elastic telescopic rod one; 10. Slot; 11. Clamping block; 12. Through slot; 13. Paddle; 61. Support plate; 62. Adjusting plate; 63. U-shaped slide rail; 64. Slider; 65. Slide rod; 66. Brush; 67. Protruding plate; 68. Elastic telescopic rod two; 69. Connecting plate; 610. Abutment rod; 611. Cam; 71. Receiving frame; 72. Connecting rod; 73. Guide plate; 74. Filter screen; 75. Transmission rod; 76. Sliding plate; 77. Scraper rod. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Please see Figures 1-8One embodiment of the present invention is: a grinding device for the opening of a brake disc, comprising a base 1, a rotating shaft 2 rotatably connected to the inner surface of the base 1, a chuck 3 fixedly connected to the top end of the rotating shaft 2, the chuck 3 for placing the brake disc, a clamping block 4 provided on the inner surface of the chuck 3 for clamping the edge of the brake disc, a pressing block 5 provided at the top end of the clamping block 4 for pressing down the top edge of the brake disc, a sweeping device 6 provided above the chuck 3 for sweeping away hard-to-clean debris adhering to the upper surface of the chuck 3, and a collecting device 7 provided at the base 1. Above seat 1, collection device 7 is used to collect debris and coolant for subsequent recycling. Chuck 3 drives the brake disc to rotate, aligning the unpolished openings with the grinding head for grinding multiple openings. Clamping block 4 clamps the edge of the brake disc, making grinding more stable and improving grinding accuracy. Pressure block 5 moves above the brake disc and presses it down, fixing the brake disc more stably on chuck 3, further improving grinding stability. The elastic telescopic rod 9 pulls pressure block 5 to continuously conform to the brake disc, allowing pressure block 5 to adapt to different brake disc thicknesses. The chuck 3 enhances the applicability of the device. It includes a connecting block 8 fixedly connected to the lower surface of the chuck 3, and an elastic telescopic rod 9 fixedly connected to the lower surface of the pressure block 5. The elastic telescopic rod 9 is used to adjust the height of the pressure block 5. The chuck 3 also includes a slot 10, which is located inside the chuck 3. A locking block 11 is slidably connected to the inner surface of the slot 10, used to fix the clamping block 4. A through groove 12 is located on the circumferential surface of the chuck 3, and a lever 13 is slidably connected to the inner surface of the through groove 12. The lever 13 is used to push the locking block 11 into the slot 10. A motor is fixedly connected to the bottom end of shaft 2, and the motor is fixedly connected to the lower surface of base 1. The elastic telescopic rod 9 is fixedly connected to the inner surface of clamping block 4. A spring is provided between clamping block 11 and clamping groove 10. The paddle 13 is fixedly connected to the side surface of clamping block 11. Clamping block 11 slides in clamping groove 10 and moves away from clamping block 4. At this time, clamping block 4 is rotated, so that the brake disc loses its limit, which facilitates quick disassembly and improves the ease of use of the device. Clamping block 11 pops out of clamping groove 10, so that clamping block 4 is fixed between chuck 3 and clamping block 11, further improving the ease of use of the device.

[0048] Working principle: The brake disc is placed on the chuck 3, and then the grinding head is inserted into the opening of the brake disc. The grinding machine is started to grind the opening. When multiple openings need to be ground, the motor is started, which drives the rotating shaft 2 to rotate. The rotating shaft 2 drives the chuck 3 to rotate, and the chuck 3 drives the brake disc to rotate, so that the unground opening is aligned with the grinding head, and multiple openings are ground. After the brake disc is placed on the chuck 3, the clamping block 4 is raised. The clamping block 4 clamps the edge of the brake disc, making the grinding more stable and improving the grinding accuracy. After the clamping block 4 is raised, the pressure block 5 moves above the brake disc, thus pressing the brake disc and fixing it more stably on the chuck 3, further improving the grinding stability. When grinding brake discs of different thicknesses, the pressure block 5 rises and falls under the influence of the interaction force between itself and the brake disc, while simultaneously driving the elastic extension... The elastic telescopic rod 9 pulls the pressure block 5 to continuously adhere to the brake disc, allowing the pressure block 5 to adapt to brake discs of different thicknesses, thus improving the applicability of the device. After grinding, push the paddles 13 on both sides of the clamping block 4 away from the clamping block 4. After being pushed, the paddles 13 slide in the through groove 12 and drive the locking block 11 to slide in the slot 10 and away from the clamping block 4. At this time, rotate the clamping block 4 to make the brake disc lose its limit, which is convenient for quick disassembly and improves the ease of use of the device. When it is necessary to clamp the brake disc, rotate the clamping block 4 in the opposite direction. After the clamping block 4 contacts the arc surface of the locking block 11, it is pushed into the slot 10 by the guide of the arc surface and squeezes the spring. When the clamping block 4 is completely in contact with the edge of the brake disc, the elastic force of the spring pushes the locking block 11 out of the slot 10, so that the clamping block 4 is locked between the chuck 3 and the locking block 11, further improving the ease of use of the device.

[0049] Please see Figures 1-7Based on the above embodiments, in another embodiment of the present invention, the sweeping device 6 includes a support plate 61, which is fixedly connected to the upper surface of the base 1. An adjusting plate 62 is hinged to the top of the support plate 61. A U-shaped slide rail 63 is fixedly connected to the side of the adjusting plate 62 near the chuck 3. A slider 64 is slidably connected to the inner surface of the U-shaped slide rail 63. A slide rod 65 is fixedly connected to the bottom end of the slider 64. A brush 66 is fixedly connected to the lower surface of the slide rod 65. The brush 66 is used to sweep away debris adhering to the upper surface of the chuck 3. The brush 66 is attached to the chuck 3. Then, the motor is started, driving the rotating shaft 2 and chuck 3 to rotate continuously. The brush 66 sweeps away debris through friction, preventing debris from adhering to the chuck 3. The adjusting plate 62 causes the sliding rod 65 and the brush 66 to stand upright and move away from the chuck 3, thus quickly retracting the brush 66 for convenient subsequent polishing and improved work efficiency. The sweeping device 6 also includes a protruding plate 67, which is fixedly connected to the top of the adjusting plate 62. A flexible telescopic rod 68 is fixedly connected to the side of the protruding plate 67 near the slider 64. Plate 69 is fixedly connected to the end of slide rod 65 away from chuck 3. An abutment rod 610 is fixedly connected to the side of plate 69 near adjusting plate 62. Cam 611 is fixedly connected to the circumferential surface of chuck 3. Cam 611 is used to push the abutment rod 610 to move reciprocally. Brush 66 abuts against the upper surface of chuck 3. Slide rod 65 slides from the side of adjusting plate 62 near chuck 3 through the side of adjusting plate 62 away from chuck 3. The upper surface of slide rod 65 is slidably connected to the lower surface of U-shaped slide rail 63. Elastic telescopic rod 68 is away from convex plate 6. One end of 7 is fixedly connected to the slider 64. The abutment rod 610 slides through the side of the adjusting plate 62 away from the chuck 3 and passes through the side of the adjusting plate 62 close to the chuck 3. The elastic force of the elastic telescopic rod 68 pushes the slider 64 away from the convex plate 67. The slider 64 then drives the slide rod 65 to slide in the opposite direction. In the process of the cam 611 continuously rotating in a circle, the slide rod 65 slides back and forth. The slide rod 65 then drives the brush 66 to slide back and forth, which increases the friction between the brush 66 and the chuck 3 and improves the brush 66's cleaning effect on debris.

[0050] Working Principle: After grinding, the brake disc is removed. The grinding debris generated during the grinding process falls from between the grinding head and the opening onto the chuck 3. Due to the high temperature generated by the friction of the grinding disc, some debris adheres to the chuck 3 and is difficult to clean, affecting subsequent grinding efficiency. Therefore, after grinding, the brush 66 is attached to the chuck 3, and the motor is started. The motor drives the rotating shaft 2 and the chuck 3 to rotate continuously, while the brush 66 sweeps away the debris through friction, preventing it from adhering to the chuck 3. After the debris is swept away, the adjusting plate 62 is rotated along the adjusting plate 62 and the support plate 61, so that the adjusting plate 62 and the support plate 61 form a vertical angle. The adjusting plate 62 drives the sliding rod 65 and the brush 66 to stand upright and move away from the chuck 3, thus quickly retracting the brush 66 for convenient subsequent grinding and improved work efficiency. The rotation of the chuck 3 drives... The cam 611 rotates in a circular motion. After the cam 611 contacts the abutment rod 610, it pushes the rod to slide within the adjusting plate 62 and move away from the chuck 3. The abutment rod 610 drives the connecting plate 69 away from the adjusting plate 62. The connecting plate 69 then drives the slide rod 65 to slide within the adjusting plate 62. When the slide rod 65 slides, it drives the slider 64 to slide within the U-shaped slide rail 63 and approach the convex plate 67. At the same time, it squeezes the elastic telescopic rod 68. When the cam 611 moves away from the abutment rod 610, the elastic force of the elastic telescopic rod 68 pushes the slider 64 away from the convex plate 67. The slider 64 then drives the slide rod 65 to slide in the opposite direction. As the cam 611 continues to rotate in a circular motion, the slide rod 65 slides back and forth. The slide rod 65 then drives the brush 66 to slide back and forth, which increases the friction between the brush 66 and the chuck 3 and improves the brush 66's cleaning effect on debris.

[0051] Please see Figures 1-7Based on the above embodiments, in another embodiment of the present invention, the collecting device 7 includes a receiving frame 71, which is fixedly connected to the upper surface of the base 1. The receiving frame 71 is used to collect debris and coolant. A connecting rod 72 is fixedly connected to the side surface of the adjusting plate 62. A guide plate 73 is hinged to the circumferential surface of the connecting rod 72. The guide plate 73 is used to guide the debris and coolant. The debris swept away by the brush 66 falls into the receiving frame 71 along the guide plate 73, thereby quickly collecting it and facilitating subsequent recycling. At the same time, the coolant sprayed onto the brake disc during the grinding process to cool it flows down the guide plate 73 and onto the filter screen 74 in the receiving frame 71 along with the debris, thereby facilitating the simultaneous cleaning of debris and coolant. The collecting device 7 also includes a filter screen 74, which is fixedly connected to the base 1. Attached to the bottom of the inner surface of the receiving frame 71, the filter screen 74 is used to filter and separate debris and coolant. The transmission rod 75 is fixedly connected to the lower surface of the contact rod 610. The bottom end of the transmission rod 75 is fixedly connected to the sliding plate 76, and the bottom end of the sliding plate 76 is fixedly connected to the scraper 77. The sliding plate 76 and the inner surface of the receiving frame 71 are slidably connected, and the scraper 77 and the inner surface of the receiving frame 71 are slidably connected. The scraper 77 abuts against the upper surface of the filter screen 74. After the coolant flows onto the filter screen 74, it continues to fall downwards through the mesh and out of the device, while the debris is blocked by the filter screen 74, thus separating them and further improving the efficiency of subsequent processing. The scraper 77 slides back and forth on the filter screen 74. When the scraper 77 slides, it pushes the debris on the filter screen 74 to both ends to gather, preventing the debris from quickly filling the filter screen 74 and causing the filter screen 74 to become clogged, which would affect the efficiency of subsequent processing.

[0052] Working principle: The guide plate 73 rotates along the axis of the connecting rod 72 and is placed on the upper surface of the chuck 3. At this time, the debris swept away by the brush 66 falls into the receiving frame 71 along the guide plate 73, thus quickly collecting it for subsequent recycling. At the same time, the coolant sprayed onto the brake disc during the grinding process flows along the guide plate 73 and the debris onto the filter screen 74 in the receiving frame 71, thus facilitating the simultaneous cleaning of debris and coolant. When the coolant flows onto the filter screen 74, it flows down the mesh... The debris continues to fall out of the device, while the debris is blocked by the filter screen 74, thus separating it and further improving the efficiency of subsequent processing. When the contact rod 610 slides back and forth, it drives the transmission rod 75 to move back and forth. The transmission rod 75 drives the sliding plate 76 to slide back and forth in the receiving frame 71. The sliding plate 76 then drives the scraper 77 to slide back and forth on the filter screen 74. When the scraper 77 slides, it pushes the debris on the filter screen 74 to both ends to gather, preventing the debris from quickly filling the filter screen 74 and causing the filter screen 74 to become clogged, which would affect the efficiency of subsequent processing.

[0053] This invention provides a grinding device for the opening portion of a brake disc. Many methods and approaches exist to achieve this technical solution; the above description is merely a preferred embodiment of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A grinding device for the opening portion of a brake disc, characterized in that, include: A base (1) is rotatably connected to a rotating shaft (2) on its inner surface. A chuck (3) is fixedly connected to the top of the rotating shaft (2). The chuck (3) is used to place the brake disc. A clamping block (4) is provided on the inner surface of the chuck (3). The clamping block (4) is used to clamp the edge of the brake disc. A pressure block (5) is provided at the top of the clamping block (4). The pressure block (5) is used to press down the top edge of the brake disc. Sweeping device (6), the sweeping device (6) is disposed above the chuck (3), the sweeping device (6) is used to sweep away the hard-to-clean debris adhering to the upper surface of the chuck (3); Collection device (7), which is set above the base (1), is used to collect debris and coolant for subsequent recycling. The cleaning device (6) includes; Support plate (61) is fixedly connected to the upper surface of base (1). An adjustment plate (62) is hinged to the top of the support plate (61). A U-shaped slide rail (63) is fixedly connected to the side of the adjustment plate (62) near the chuck (3). The slider (64) is slidably connected to the inner surface of the U-shaped slide rail (63). The bottom end of the slider (64) is fixedly connected to the slide rod (65). The lower surface of the slide rod (65) is fixedly connected to the brush (66). The brush (66) is used to sweep away the debris adhering to the upper surface of the chuck (3). The cleaning device (6) also includes; A protruding plate (67) is fixedly connected to the top of the adjusting plate (62), and an elastic telescopic rod (68) is fixedly connected to the side of the protruding plate (67) near the slider (64). A connecting plate (69) is fixedly connected to the end of the slide rod (65) away from the chuck (3), and an abutment rod (610) is fixedly connected to the side of the connecting plate (69) near the adjusting plate (62). Cam (611), which is fixedly connected to the circumferential surface of chuck (3), is used to push the abutment rod (610) to reciprocate; The collecting device (7) includes; The receiving frame (71) is fixedly connected to the upper surface of the base (1) and is used to collect debris and coolant. A connecting rod (72) is fixedly connected to the side surface of the adjusting plate (62). A guide plate (73) is hinged to the circumferential surface of the connecting rod (72). The guide plate (73) is used to guide the debris and coolant. The collecting device (7) also includes; A filter screen (74) is fixedly connected to the bottom of the inner surface of the receiving frame (71). The filter screen (74) is used to filter and separate debris and coolant. A transmission rod (75) is fixedly connected to the lower surface of the abutment rod (610). A sliding plate (76) is fixedly connected to the bottom end of the transmission rod (75), and a scraper (77) is fixedly connected to the bottom end of the sliding plate (76).

2. The brake disc hole grinding device according to claim 1, characterized in that: The chuck (3) includes; Connecting block (8), which is fixedly connected to the lower surface of chuck (3); Elastic telescopic rod 1 (9) is fixedly connected to the lower surface of the pressure block (5) and is used to adjust the height of the pressure block (5).

3. The brake disc hole grinding device according to claim 2, characterized in that: The chuck (3) also includes; The slot (10) is located inside the chuck (3), and a block (11) is slidably connected to the inner surface of the slot (10). The block (11) is used to fix the clamp (4). A through groove (12) is formed on the circumferential surface of the chuck (3). A paddle (13) is slidably connected to the inner surface of the through groove (12). The paddle (13) is used to push the chuck block (11) into the chuck slot (10).

4. The brake disc hole grinding device according to claim 3, characterized in that: The bottom end of the rotating shaft (2) is fixedly connected to a motor, and the motor is fixedly connected to the lower surface of the base (1). The elastic telescopic rod (9) is fixedly connected to the inner surface of the clamping block (4). A spring is provided between the card block (11) and the card slot (10). The paddle (13) is fixedly connected to the side surface of the card block (11).

5. The brake disc hole grinding device according to claim 4, characterized in that: The brush (66) and the upper surface of the chuck (3) abut against each other. The slide rod (65) slides from the side of the adjusting plate (62) near the chuck (3) through the side of the adjusting plate (62) away from the chuck (3). The upper surface of the slide rod (65) and the lower surface of the U-shaped slide rail (63) are slidably connected. The end of the elastic telescopic rod (68) away from the convex plate (67) is fixedly connected to the slider (64). The abutting rod (610) slides from the side of the adjusting plate (62) away from the chuck (3) through the side of the adjusting plate (62) near the chuck (3).

6. The brake disc opening grinding device according to claim 5, characterized in that: The sliding plate (76) and the inner surface of the receiving frame (71) are slidably connected, the scraper (77) and the inner surface of the receiving frame (71) are slidably connected, and the scraper (77) and the upper surface of the filter screen (74) abut against each other.

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