Abrasive tool with good grinding effect

Abstract

The application relates to a grinding abrasive tool with good grinding effect, which comprises a fixed shell installed on a grinding device, a mounting hole is formed in the upper surface of the fixed shell, the inner wall of the mounting hole is fixedly connected with a bearing, the inner ring surface of the bearing is fixedly connected with a transmission shaft, the bottom end of the transmission shaft extends to the inner cavity of the fixed shell and is fixedly connected with a mounting seat, the mounting seat is installed with an abrasive tool assembly, and the fixed shell is provided with a locking piece for fixing the abrasive tool assembly. In the application, the deflection of the connecting seat is prevented through the cooperation of the guide strips and the guide grooves, the connecting seat is locked through the cooperation of the locking rods and the locking holes, the abrasive tool assembly is fixed, the influence of the movement of the abrasive tool assembly on the grinding effect during work is reduced, and therefore the grinding abrasive tool with good grinding effect has the function of improving the grinding effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of abrasive tools, in particular to an abrasive tool with good grinding effect. BACKGROUND

[0002] The abrasive tool is a general term for abrasive products and abrasive tools, and is known as the industrial tooth. In grinding, abrasive or abrasive tools are often used as grinding tools to machine parts to meet certain technical requirements.

[0003] The existing abrasive tool, such as the abrasive tool with good grinding effect disclosed in the Chinese patent with the authorization number CN207522363U, is provided with a shock absorber inside the buffer seat and at the bottom of the partition plate, and a connecting block fixedly connected with the bottom end of the connecting rod. A third first spring is arranged at the bottom of the connecting block, and a second first spring is arranged inside the shock absorber and fixedly connected with the pressing rod. The partition plate is actuated by the fixed column, the pressing rod drives the pressing block to act on the second first spring, and the connecting rod drives the connecting block to act on the third first spring, so that the second fixed plate drives the abrasive tool body to slide along the surface of the guide rod, and the abrasive tool body is always in reliable contact with the material when the connecting column drives the abrasive tool body to rotate, the grinding effect is good, and the quality of the material is effectively improved. However, the abrasive tool body of the device is movable and cannot be fixed, which will affect the grinding effect when the abrasive tool body moves during work.

[0004] In order to solve the above problems, the present application provides an abrasive tool with good grinding effect. SUMMARY

[0005] The present application aims to overcome the shortcomings of the prior art, adapt to the actual needs, and provide an abrasive tool with good grinding effect to solve the above technical problems.

[0006] In order to achieve the purpose of the present application, the technical scheme adopted by the present application is as follows:

[0007] An abrasive tool with good grinding effect, comprising a fixed shell mounted on a grinding device, an installation hole is formed in the upper surface of the fixed shell, and a bearing is fixedly connected to the inner wall of the installation hole, the inner ring surface of the bearing is fixedly connected with a transmission shaft, the bottom end of the transmission shaft extends into the inner cavity of the fixed shell and is fixedly connected with a mounting seat, the mounting seat is installed with an abrasive tool assembly, and the fixed shell is provided with a locking piece for fixing the abrasive tool assembly.

[0008] Further, the abrasive tool assembly comprises a center seat, a grinding disc is fixedly connected to the surface of the center seat, a plurality of chip removal grooves are formed in the lower surface of the grinding disc, a connecting seat is fixedly connected to the upper surface of the center seat, the connecting seat is open at the top, and a locking hole and a guide groove are respectively formed in the surface of the connecting seat.

[0009] Further, the mounting seat comprises a seat body fixedly connected to the bottom end of the transmission shaft, a groove is formed in the surface of the seat body, and a guide strip is slidably connected to the inner wall of the groove.

[0010] Further, the locking member comprises a sliding hole formed in the surface of the fixed shell, a locking rod matched with the locking hole is slidably connected to the inner wall of the sliding hole, and an inclined surface is arranged at the bottom of the right side of the surface of the locking rod.

[0011] Further, a fixing sheet is fixedly connected to the surface of the locking rod, a first spring is sleeved on the surface of the locking rod, one end of the first spring is fixedly connected to the side of the fixing sheet away from the seat body, the other end of the first spring is fixedly connected to the inner wall of the fixed shell, and a pulling block is fixedly connected to the side of the locking rod away from the seat body.

[0012] Further, a blowing assembly is rotatably connected to the inner top wall of the fixed shell, the blowing assembly comprises a rotating shaft rotatably connected to the inner top wall of the fixed shell, a fan blade is fixedly connected to the bottom end of the rotating shaft, and a ventilation hole is formed in the upper surface of the fixed shell.

[0013] Further, a gear ring is rotatably connected to the inner top wall of the fixed shell, the gear ring is sleeved on the outside of the seat body, a driven gear is fixedly connected to the surface of the rotating shaft, the gear ring is engaged with the driven gear, a plurality of connecting grooves are formed in the lower surface of the gear ring, the connecting grooves are matched with the guide strips, and the guide strips are inserted into the connecting grooves when the abrasive tool assembly is locked.

[0014] Further, a lubricating assembly for lubricating the bearing is fixedly connected to the upper surface of the fixed shell, the lubricating assembly comprises an outer shell fixedly connected to the upper surface of the fixed shell, the outer shell is annular and hollow in the inside, a cover plate is fixedly connected to the inner wall of the outer shell, an injection port is formed in the upper surface of the cover plate, and a sealing cover is arranged on the inner wall of the main injection port.

[0015] Further, the inner wall of the shell is fixedly connected with a partition plate, the lower surface of the inner wall of the shell and the partition plate is slidably connected with a moving plate, the lower surface of the moving plate is fixedly connected with a ring-shaped sponge block, the lower surface of the shell is provided with an avoiding hole for the movement of the sponge block, the sponge block corresponds to the bearing, the surface of the shell and the lower surface of the partition plate are provided with a rectangular hole, the inner wall of the rectangular hole is slidably connected with a connecting block, one side of the connecting block is fixedly connected with the surface of the moving plate, the lower surface of the connecting block is fixedly connected with a second spring, the bottom end of the second spring is fixedly connected with the upper surface of the fixed shell, the surface of the transmission shaft is fixedly connected with a driving disc, the surface of the driving disc is inclined, and the upper surface of one of the connecting blocks is fixedly connected with a top rod, the top end of the top rod is attached to the lower surface of the driving disc.

[0016] Further, the upper surface of the partition plate is provided with a communication hole, the upper surface of the moving plate is provided with an anti-flow groove, the inner bottom wall of the anti-flow groove is provided with a plurality of oil infiltration holes, the inner bottom wall of the anti-flow groove is fixedly connected with a sealing block, the upper surface of the sealing block is fixedly connected with an oil outlet block, and the diameter of the sealing block is equal to the inner diameter of the communication hole.

[0017] Beneficial effects:

[0018] 1、In the application, the deflection of the connecting seat is prevented through the cooperation of the guide groove and the guide strip, the connecting seat is locked through the cooperation of the locking rod and the locking hole, and then the abrasive tool assembly is fixed, the influence of the movement of the abrasive tool assembly on the grinding effect during work is reduced, and therefore the abrasive tool with good grinding effect has the function of improving the grinding effect.

[0019] 2、In the application, the guide strip is pushed to move upwards until the locking rod is inserted into the locking hole when the guide groove is aligned with the guide strip and the connecting seat is sleeved on the surface of the mounting seat, the guide strip is inserted into the connecting groove, the mounting seat is driven to rotate through the transmission shaft, the connecting strip is driven to rotate, the gear ring is driven to rotate, the driven gear is driven to rotate through the gear ring, the rotating shaft is driven to rotate, and the fan blade is driven to rotate, and through the fan blade, the air generated from top to bottom under the cooperation of the ventilation hole blows away the debris generated during grinding, the influence of the debris on the grinding effect is avoided, and therefore the abrasive tool with good grinding effect further improves the grinding effect.

[0020] 3、In the application, the air flow rate of the grinding disc part is improved through the fan blade to generate air from top to bottom, the heat generated due to friction between the grinding disc and the workpiece during work is reduced, the wear rate of the grinding disc is reduced, and therefore the abrasive tool with good grinding effect has the effect of improving the service life.

[0021] 4、The present application, through the transmission shaft rotation drive disk rotation, in turn, so that the top bar reciprocating motion in the second spring cooperation, in turn, drive the connecting block moves up and down, in turn, drive the moving plate moves up and down, in turn, drive the sponge block up and down and contact with bearing, through the moving plate drive sealing block and oil block up and down, when the sealing block is located in the communication hole, the communication hole is sealed, when the oil block is located in the communication hole, the communication hole is opened and oil, so that the lubricating oil above the partition plate into the anti-flow groove, in turn, under the action of oil seepage hole into the sponge block for bearing lubrication, so that the grinding effect of abrasive grinding tool has the effect of lubrication, improve the service life of the device. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0023] Figure 2 is a schematic diagram of the front cut structure of the fixed shell of the present application;

[0024] Figure 3 is a schematic diagram of the three-dimensional structure of the abrasive grinding tool assembly (cutting disc section) of the present application;

[0025] Figure 4 is a schematic diagram of the three-dimensional structure of the locking member of the present application;

[0026] Figure 5 is a schematic diagram of the bottom structure of the air supply assembly of the present application;

[0027] Figure 6 is a schematic diagram of the explosion structure of the rotating shaft, fan blade and driven gear of the present application;

[0028] Figure 7 is a schematic diagram of the three-dimensional structure of the lubricating assembly of the present application;

[0029] Figure 8 is a schematic diagram of the front cut structure of the shell of the present application;

[0030] Figure 9 is a schematic diagram of the cut structure of the partition plate of the present application;

[0031] Figure 10 is a schematic diagram of the three-dimensional structure of the cover plate and sealing cover of the present application.

[0032] The reference signs are as follows:

[0033] 1. Fixed housing; 2. Bearing; 3. Drive shaft; 4. Mounting base; 401. Base body; 402. Guide bar; 5. Abrasive grinding wheel assembly; 501. Center seat; 502. Grinding disc; 503. Chip removal groove; 504. Connecting seat; 505. Locking hole; 506. Guide groove; 6. Locking element; 601. Locking rod; 602. Fixing plate; 603. First spring; 604. Pull block; 7. Air supply assembly; 701. Rotating shaft; 702. Fan blade; 70 3. Vent hole; 704. Gear ring; 705. Driven gear; 706. Connecting groove; 8. Lubrication assembly; 801. Housing; 802. Cover plate; 803. Sealing cover; 804. Divider plate; 805. Moving plate; 806. Sponge block; 807. Connecting block; 808. Second spring; 809. Drive disc; 810. Push rod; 811. Connecting hole; 812. Anti-flow groove; 813. Oil seepage hole; 814. Sealing block; 815. Oil outlet block. Detailed Implementation

[0034] The following is in conjunction with the appendix Figures 1-10 The present invention is further illustrated by the embodiments:

[0035] This embodiment provides an abrasive tool with good grinding effect, which can be used in some devices that do not require the use of grinding fluid for cooling during operation. The abrasive tool can improve the grinding effect by fixing the tool and cleaning up the debris.

[0036] like Figures 1-10 As shown, an abrasive tool with good grinding effect includes a fixed shell 1 installed on a grinding equipment. The upper surface of the fixed shell 1 has a mounting hole, and a bearing 2 is fixedly connected to the inner wall of the mounting hole. A drive shaft 3 is fixedly connected to the inner ring surface of the bearing 2. The bottom end of the drive shaft 3 extends into the inner cavity of the fixed shell 1 and is fixedly connected to a mounting seat 4. An abrasive tool assembly 5 is installed on the mounting seat 4, and a locking member 6 for fixing the abrasive tool assembly is provided on the fixed shell 1.

[0037] In this embodiment, as Figures 3-4 As shown, the abrasive grinding tool assembly 5 includes a center seat 501, a grinding disc 502 is fixedly connected to the surface of the center seat 501, a plurality of chip removal grooves 503 are opened on the lower surface of the grinding disc 502, and a connecting seat 504 is fixedly connected to the upper surface of the center seat 501. The connecting seat 504 is open at the top, and a locking hole 505 and a guide groove 506 are respectively opened on the surface of the connecting seat 504.

[0038] Mounting base 4 includes a base body 401 fixedly connected to the bottom end of the drive shaft 3. The surface of the base body 401 is provided with a groove, and a guide strip 402 is slidably connected to the inner wall of the groove. The guide strip 402 is adapted to the guide groove 506.

[0039] The locking component 6 includes a sliding hole formed on the surface of the fixed housing 1, and a locking rod 601 that mates with the locking hole 505 is slidably connected to the inner wall of the sliding hole. An inclined surface is provided on the bottom right side of the surface of the locking rod 601.

[0040] A fixing plate 602 is fixedly connected to the surface of the locking rod 601. A first spring 603 is sleeved on the surface of the locking rod 601. One end of the first spring 603 is fixedly connected to the side of the fixing plate 602 away from the seat 401. The other end of the first spring 603 is fixedly connected to the inner wall of the fixing shell 1. A pull block 604 is fixedly connected to the side of the locking rod 601 away from the seat 401.

[0041] Specifically, the guide bar 402 and the guide groove 506 cooperate to prevent the connecting seat 504 from deflecting. The locking rod 601 and the locking hole 505 cooperate to lock the connecting seat 504, thereby fixing the abrasive grinding tool assembly 5 and reducing the impact of the movement of the abrasive grinding tool assembly 5 on the grinding effect during operation. The guide bar 402 and the groove are slidably connected by a slider and a slide groove. The length of the slide groove controls the range of movement of the guide bar 402 to prevent the guide bar 402 from disengaging from the mounting seat 4. This is existing technology and will not be described in detail here.

[0042] In this embodiment, as Figures 5-6 As shown, an air supply assembly 7 is rotatably connected to the inner top wall of the fixed shell 1. The air supply assembly 7 includes a rotating shaft 701 rotatably connected to the inner top wall of the fixed shell 1. A fan blade 702 is fixedly connected to the bottom end of the rotating shaft 701. A vent hole 703 is provided on the upper surface of the fixed shell 1.

[0043] A gear ring 704 is rotatably connected to the inner top wall of the fixed shell 1, and the gear ring 704 is sleeved on the outside of the base 401. A driven gear 705 is fixedly connected to the surface of the rotating shaft 701. The gear ring 704 meshes with the driven gear 705. Several connecting grooves 706 are opened on the lower surface of the gear ring 704. The connecting grooves 706 are adapted to the guide strip 402. When the abrasive grinding tool assembly 5 is locked, the guide strip 402 is inserted into the connecting groove 706.

[0044] Specifically, by aligning the guide groove 506 with the guide bar 402 and fitting the connecting seat 504 onto the surface of the mounting base 4, the guide bar 402 can be pushed upwards until the locking rod 601 is inserted into the locking hole 505. At this point, the guide bar 402 is inserted into the connecting groove 706, which drives the mounting base 4 to rotate via the transmission shaft 3. This, in turn, drives the connecting bar to rotate, which in turn drives the gear ring 704 to rotate. The gear ring 704 drives the driven gear 705 to rotate, which in turn drives the rotating shaft 701 to rotate, which in turn drives the fan blade 702 to rotate. With the cooperation of the vent hole 703, the fan blade 702 generates a downward airflow, which disperses the grinding debris and prevents the debris from affecting the grinding effect. The downward airflow generated by the rotation of the fan blade 702 increases the airflow velocity at the grinding disc 502, thereby improving its heat dissipation effect and reducing the heat generated by friction between the grinding disc 502 and the workpiece during operation, thus reducing the wear rate of the grinding disc 502.

[0045] In this embodiment, as Figures 7-10 As shown, a lubrication assembly 8 for lubricating the bearing 2 is fixedly connected to the upper surface of the fixed shell 1. The lubrication assembly 8 includes a shell 801 fixedly connected to the upper surface of the fixed shell 1. The shell 801 is annular and hollow inside. A cover plate 802 is fixedly connected to the inner wall of the shell 801. An injection port is opened on the upper surface of the cover plate 802, and a sealing cover 803 is provided on the inner wall of the main inlet.

[0046] A partition plate 804 is fixedly connected to the inner wall of the outer shell 801. A movable plate 805 is slidably connected to the lower surface of the partition plate 804 and the inner wall of the outer shell 801. An annular sponge block 806 is fixedly connected to the lower surface of the movable plate 805. A clearance hole for the movement of the sponge block 806 is provided on the lower surface of the outer shell 801. The sponge block 806 corresponds to the bearing 2. A rectangular hole is provided on the surface of the outer shell 801 and below the partition plate 804. A connecting block 807 is slidably connected to the inner wall of the rectangular hole. One side of the connecting block 807 is fixedly connected to the surface of the movable plate 805. A second spring 808 is fixedly connected to the lower surface of the connecting block 807. The bottom end of the second spring 808 is fixedly connected to the upper surface of the fixed shell 1. A drive disk 809 is fixedly connected to the surface of the drive shaft 3. The surface of the drive disk 809 is inclined. A push rod 810 is fixedly connected to the upper surface of one of the connecting blocks 807. The top end of the push rod 810 is in contact with the lower surface of the drive disk 809.

[0047] The upper surface of the partition plate 804 is provided with a connecting hole 811, the upper surface of the movable plate 805 is provided with an anti-flow groove 812, the inner bottom wall of the anti-flow groove 812 is provided with a number of oil seepage holes 813, a sealing block 814 is fixedly connected to the inner bottom wall of the anti-flow groove 812, and an oil outlet block 815 is fixedly connected to the upper surface of the sealing block 814. The diameter of the sealing block 814 is equal to the inner diameter of the connecting hole 811.

[0048] Specifically, the drive shaft 3 rotates, driving the drive disc 809 to rotate, which in turn causes the push rod 810 to reciprocate up and down in conjunction with the second spring 808. This, in turn, causes the connecting block 807 to move up and down, which in turn causes the moving plate 805 to move up and down, which in turn causes the sponge block 806 to move up and down and come into contact with the bearing 2. The moving plate 805 causes the sealing block 814 and the oil outlet block 815 to move up and down. When the sealing block 814 is located in the connecting hole 811, the connecting hole 811 is sealed. When the oil outlet block 815 is located in the connecting hole 811, the connecting hole 811 is opened and oil is discharged, allowing the lubricating oil above the partition plate 804 to enter the anti-flow groove 812, and then, under the action of the oil seepage hole 813, enter the sponge block 806 to lubricate the bearing 2, thereby making the abrasive tool with good grinding effect... It has a lubricating effect, which improves the service life of the device. During use, lubricating oil is injected into the upper part of the partition plate 804 in the housing 801 through the main inlet. The anti-flow groove 812 is used to prevent the lubricating oil from flowing out of the housing 801. After stopping work, the drive shaft 3 can be manually rotated to drive the drive disk 809 to rotate, so that the top of the push rod 810 contacts the highest point of the drive disk 809. At this time, the sealing block 814 is located in the connecting hole 811, which prevents the lubricating oil from continuing to flow into the sponge block 806. The faster the rotation speed of the rotating shaft 701, the faster the grinding disk 502 generates heat. At this time, the faster the sealing block 814 and the oil outlet block 815 move up and down, the higher the frequency of opening the connecting hole 811, and the more oil is discharged, so that it can adapt to the heat dissipation requirements of the grinding disk 502 at different speeds.

[0049] Working principle: When using this abrasive tool with good grinding effect, the user first picks up the connecting seat 504, aligns the guide groove 506 with the guide bar 402, and moves the entire abrasive tool assembly 5 upward. During the movement, the connecting seat 504 presses the inclined surface of the locking rod 601, causing the locking rod 601 to compress the first spring 603 and move outward until the locking rod 601 corresponds to the locking hole 505. At this time, the first spring 603 resets and pushes the fixing plate 602. The fixing plate 602 drives the locking rod 601 to move and insert into the locking hole 505. During this process, the inner top wall of the guide groove 506 will push the guide bar 402 upward until the locking rod 601 is inserted into the locking hole 505. Then the guide bar 402 is inserted into the connecting groove 706. Then the external drive motor is turned on to drive the transmission shaft 3 to rotate. The transmission shaft 3 drives the mounting seat 4 to rotate. The mounting seat 4 drives the abrasive tool assembly 5 to rotate to perform grinding work.

[0050] When the drive shaft 3 drives the mounting base 4 to rotate, the mounting base 4 drives the connecting strip to rotate, the connecting strip drives the gear ring 704 to rotate, the gear ring 704 drives the driven gear 705 to rotate, the driven gear 705 drives the rotating shaft 701 to rotate, and the rotating shaft 701 drives the fan blade 702 to rotate. With the cooperation of the vent hole 703, the fan blade 702 generates a downward airflow, which blows away the grinding debris and avoids the debris from affecting the grinding effect. At the same time, the upward airflow generated by the rotation of the fan blade 702 can increase the airflow speed at the grinding disc 502, thereby improving its heat dissipation effect, reducing the heat generated by friction between the grinding disc 502 and the workpiece during operation, and reducing the wear rate of the grinding disc 502.

[0051] When the drive shaft 3 rotates, it drives the drive disk 809 to rotate. Since the lower surface of the drive disk 809 is inclined, the push rod 810 moves up and down in cooperation with the second spring 808. The push rod 810 drives the connecting block 807 to move up and down. The connecting block 807 drives the moving plate 805 to move up and down. The moving plate 805 drives the sponge block 806 to move up and down and contact the bearing 2. At the same time, the moving plate 805 drives the sealing block 814 and the oil outlet block 815 to move up and down. When the sealing block 814 is located in the connecting hole 811, the connecting hole 811 is sealed. When the oil outlet block 815 is located in the connecting hole 811, the connecting hole 811 is opened and oil is discharged, so that the lubricating oil above the partition plate 804 enters the anti-flow groove 812, and then enters the sponge block 806 under the action of the oil seepage hole 813 for the lubrication of the bearing 2. Thus, the abrasive tool with good grinding effect has a lubricating effect, which improves the service life of the device.

[0052] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of the present invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An abrasive tool with good grinding effect, characterized in that, The equipment includes a fixed housing (1) installed on a grinding machine. The upper surface of the fixed housing (1) is provided with a mounting hole, and a bearing (2) is fixedly connected to the inner wall of the mounting hole. A transmission shaft (3) is fixedly connected to the inner ring surface of the bearing (2). The bottom end of the transmission shaft (3) extends into the inner cavity of the fixed housing (1) and is fixedly connected to a mounting seat (4). An abrasive grinding tool assembly (5) is installed on the mounting seat (4). A locking member (6) for fixing the abrasive grinding tool assembly (5) is provided on the fixed housing (1). The upper surface of the fixed shell (1) is fixedly connected to a lubrication assembly (8) for lubricating the bearing (2). The lubrication assembly (8) includes a shell (801) fixedly connected to the upper surface of the fixed shell (1). The shell (801) is annular and hollow inside. A cover plate (802) is fixedly connected to the inner wall of the shell (801). An injection port is opened on the upper surface of the cover plate (802), and a sealing cover (803) is provided on the inner wall of the main inlet. A partition plate (804) is fixedly connected to the inner wall of the outer shell (801). A movable plate (805) is slidably connected to the lower surface of the partition plate (804) and the inner wall of the outer shell (801). An annular sponge block (806) is fixedly connected to the lower surface of the movable plate (805). A clearance hole for the movement of the sponge block (806) is provided on the lower surface of the outer shell (801). The sponge block (806) corresponds to the bearing (2). A rectangular hole is provided on the surface of the outer shell (801) and below the partition plate (804). A connecting block (8) is slidably connected to the inner wall of the rectangular hole. 07), one side of the connecting block (807) is fixedly connected to the surface of the moving plate (805), a second spring (808) is fixedly connected to the lower surface of the connecting block (807), the bottom end of the second spring (808) is fixedly connected to the upper surface of the fixed shell (1), a drive disk (809) is fixedly connected to the surface of the transmission shaft (3), the surface of the drive disk (809) is inclined, and a top rod (810) is fixedly connected to the upper surface of one of the connecting blocks (807), the top end of the top rod (810) is in contact with the lower surface of the drive disk (809); The upper surface of the partition plate (804) is provided with a connecting hole (811), the upper surface of the movable plate (805) is provided with an anti-flow groove (812), the inner bottom wall of the anti-flow groove (812) is provided with a plurality of oil seepage holes (813), a sealing block (814) is fixedly connected to the inner bottom wall of the anti-flow groove (812), and an oil outlet block (815) is fixedly connected to the upper surface of the sealing block (814). The diameter of the sealing block (814) is equal to the inner diameter of the connecting hole (811).

2. The abrasive tool with good grinding effect as described in claim 1, characterized in that: The abrasive grinding tool assembly (5) includes a center seat (501), a grinding disc (502) is fixedly connected to the surface of the center seat (501), a plurality of chip removal grooves (503) are opened on the lower surface of the grinding disc (502), and a connecting seat (504) is fixedly connected to the upper surface of the center seat (501). The connecting seat (504) is open at the top, and a locking hole (505) and a guide groove (506) are respectively opened on the surface of the connecting seat (504).

3. The abrasive tool with good grinding effect as described in claim 2, characterized in that: The mounting base (4) includes a seat body (401) fixedly connected to the bottom end of the transmission shaft (3). The surface of the seat body (401) is provided with a groove, and a guide strip (402) is slidably connected to the inner wall of the groove. The guide strip (402) is adapted to the guide groove (506).

4. The abrasive tool with good grinding effect as described in claim 1, characterized in that: The locking member (6) includes a sliding hole on the surface of the fixed shell (1), and a locking rod (601) that cooperates with the locking hole (505) is slidably connected to the inner wall of the sliding hole. An inclined surface is provided on the bottom right side of the surface of the locking rod (601).

5. The abrasive tool with good grinding effect as described in claim 4, characterized in that: A fixing plate (602) is fixedly connected to the surface of the locking rod (601), and a first spring (603) is sleeved on the surface of the locking rod (601). One end of the first spring (603) is fixedly connected to the side of the fixing plate (602) away from the seat (401), and the other end of the first spring (603) is fixedly connected to the inner wall of the fixing shell (1). A pull block (604) is fixedly connected to the side of the locking rod (601) away from the seat (401).

6. The abrasive tool with good grinding effect as described in claim 1, characterized in that: An air supply assembly (7) is rotatably connected to the inner top wall of the fixed shell (1). The air supply assembly (7) includes a rotating shaft (701) rotatably connected to the inner top wall of the fixed shell (1). A fan blade (702) is fixedly connected to the bottom end of the rotating shaft (701). A ventilation hole (703) is provided on the upper surface of the fixed shell (1).

7. The abrasive tool with good grinding effect as described in claim 6, characterized in that: A gear ring (704) is rotatably connected to the inner top wall of the fixed shell (1), and the gear ring (704) is sleeved on the outside of the base (401). A driven gear (705) is fixedly connected to the surface of the rotating shaft (701). The gear ring (704) meshes with the driven gear (705). A plurality of connecting grooves (706) are opened on the lower surface of the gear ring (704). The connecting grooves (706) are adapted to the guide strip (402). When the abrasive grinding tool assembly (5) is locked, the guide strip (402) is inserted into the connecting groove (706).

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