A grinding wheel and a usage method dedicated to cutting arcs

Abstract

The present invention belongs to the technical field of grinding wheels, in particular to a grinding wheel and a using method dedicated to cutting arcs, including a mounting seat. The surface of the mounting seat is in a U shape, and locking holes are opened at the top of the mounting seat. The inner walls of multiple locking holes are all threadedly connected to the mounting surface of the cutting device through screws. For this grinding wheel and using method dedicated to cutting arcs, by setting an angle adjustment mechanism and a quick installation and disassembly mechanism, when the grinding wheel cuts an arc, real-time monitoring is carried out through an angle sensor. When the angle of the cutting shaft changes, automatic adjustment is carried out through the angle adjustment mechanism to ensure that the grinding wheel cuts vertically, thereby enhancing the cutting efficiency and the cutting quality; through the quick installation and disassembly mechanism, when the cutting surface of the grinding wheel is damaged, it is not necessary to control the overall scrapping of the grinding wheel. It only needs to replace the cutting disc, and the replacement speed is fast, the operation is simple, waste is avoided, and the cutting cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding wheel equipment, and particularly relates to a grinding wheel dedicated for cutting arcs and a using method thereof. Background Art

[0002] A grinding wheel, also known as a vitrified abrasive tool, is a vitrified abrasive tool in which ordinary abrasives are solidified into a certain shape (mostly circular with a through hole in the center) by a binder and have a certain strength. It generally consists of abrasives, a binder, and pores, and these three parts are often referred to as the three elements of a vitrified abrasive tool. According to different classifications of binders, common ones include ceramic (binder) grinding wheels, resin (binder) grinding wheels, and rubber (binder) grinding wheels. The grinding wheel is the most widely used and has the widest application surface among abrasive tools. When in use, it rotates at a high speed and can be used for rough grinding, semi-precision grinding, and precision grinding of the outer circle, inner circle, plane, and various profiles of metal or non-metal workpieces, as well as grooving and cutting.

[0003] When the existing grinding wheel cuts an arc, a cutting arc device is used to control the grinding wheel to rotate and cut while walking along a trajectory. When the grinding wheel cuts an arc, only one side surface of the grinding wheel is controlled for cutting. When turning during the arc cutting, there is a cutting force on the cutting surface from one side surface of the grinding wheel, so there is a reverse thrust on the surface of the grinding wheel from the cutting surface. When the cutting stroke is too large or the speed is too fast, the reverse thrust will increase, resulting in the inclination of the cutting surface of the grinding wheel, thus causing the cutting surface to be inclined and uneven, leading to a decline in cutting quality. In addition, during continuous cutting of the grinding wheel, notches are likely to appear at the cutting positions on the outer surface of the grinding wheel or local damage occurs at the edges and corners. At this time, if the entire grinding wheel is replaced, it will easily cause a large amount of waste and an increase in cutting costs.

[0004] Based on the above technical problems, a grinding wheel dedicated for cutting arcs and a using method thereof are needed. Summary of the Invention

[0005] Based on the existing technical problems, the present invention provides a grinding wheel dedicated for cutting arcs and a using method thereof.

[0006] The grinding wheel dedicated for cutting arcs and the using method provided by the present invention include a mounting base. The surface of the mounting base is U-shaped. A locking hole is provided at the top of the mounting base, and the inner walls of multiple locking holes are threadedly connected to the mounting surface of the cutting device through screws. Mounting insertion grooves are provided on both side surfaces of the mounting base. An angle adjustment mechanism is provided on the inner wall of one of the mounting insertion grooves. The angle adjustment mechanism includes a sliding block, and the two side surfaces of the sliding block are slidably inserted into the inner walls of the corresponding mounting insertion grooves.

[0007] Another one of the installation insertion grooves is threadedly connected with a fixing block by screws. Angular contact bearings are fixedly installed on one side surface of the fixing block and one side surface of the sliding block respectively. Inner rings of the two angular contact bearings are fixedly connected with a cutting shaft. A turntable is press-fitted and inserted on the arc surface of the cutting shaft. A quick installation and disassembly mechanism is arranged inside the turntable. The quick installation and disassembly mechanism includes an adjusting rod. A first insertion hole is formed inside the turntable. A plurality of the first insertion holes are evenly arranged in a circumferential distribution with the axis of the cutting shaft as the center. The surface of the adjusting rod is slidably inserted into the inner wall of the first insertion hole.

[0008] Preferably, sliding blocks are fixedly connected to both side surfaces of the sliding block. Sliding grooves are formed on both inner side walls of the installation insertion groove. The inner wall of the sliding groove is slidably inserted with the surface of the sliding block.

[0009] Preferably, a power installation groove is formed on the inner top wall of the installation insertion groove. An electric telescopic rod is fixedly installed on the inner wall of the power installation groove. The telescopic end of the electric telescopic rod is fixedly installed with the top of the opposite sliding block.

[0010] Preferably, a detection installation hole is formed on the central surface of one end of the cutting shaft. An angle sensor is fixedly installed on one side surface of the fixing block. The detection shaft of the angle sensor is clamped with the inner wall of the detection installation hole. The angle sensor is electrically connected with the electric telescopic rod. A locking nut is threadedly connected to the arc surface of the cutting shaft. The two locking nuts are respectively located on both sides of the turntable.

[0011] Preferably, a protective cover is fixedly connected to the inner top wall of the mounting seat. The surface of the protective cover is arc-shaped and is distributed in a semi-circular ring shape. The surface of the turntable is located inside the protective cover.

[0012] Preferably, a plurality of the adjusting rods are grouped into two groups with six in each group, namely a long group and a short group. A plurality of the first insertion holes are grouped into two groups with six in each group, namely long holes and short holes. The long group corresponds to the long holes, and the short group corresponds to the short holes. First insertion grooves are formed on both inner bottom side walls of a plurality of the first insertion holes. Inner walls of the plurality of first insertion grooves are fixedly communicated with both side surfaces of the turntable. A first compression spring is fixedly connected to the inner bottom wall of the first insertion hole. One end of the first compression spring is fixedly connected to the opposite end of the adjusting rod. First extrusion inclined edges are formed on both side surfaces of one end of the adjusting rod. Sliding inclined edges are formed on the surface of the other end of the adjusting rod. A plurality of the sliding inclined edges are slidably inserted into the surface of the cutting shaft.

[0013] Preferably, a limiting and locking block is fixedly connected to the inner wall of the first insertion slot. Cutting installation slots are formed on both side surfaces of the turntable. A cutting blade is fixedly connected to the inner wall of the cutting installation slot. A locking insertion slot is formed on one side surface of the cutting blade. The inner wall of the locking insertion slot is slidably inserted with the surface of the limiting and locking block. Positioning and locking slots are formed on both inner walls of the locking insertion slot.

[0014] Preferably, a second insertion slot is formed on one side surface of the limiting and locking block. An extrusion block is slidably inserted into the inner wall of the second insertion slot. A first auxiliary sliding bevel edge is formed on one end surface of the extrusion block. The surface of the first auxiliary sliding bevel edge is slidably inserted with the surface of the first extrusion bevel edge. Second extrusion bevel edges are formed on both side surfaces of the other end of the extrusion block. A second compression spring is fixedly connected to the inner bottom wall of the second insertion slot. The other end of the second compression spring is fixedly connected to the opposite surface of the extrusion block.

[0015] Preferably, third insertion slots are formed on both side surfaces of one end of the second insertion slot. A positioning and locking rod is slidably inserted into the inner wall of the third insertion slot. One end of the positioning and locking rod is in an inclined shape. One end of the positioning and locking rod is slidably inserted with the inner wall of the positioning and locking slot. A second auxiliary sliding bevel edge is formed on the other end of the positioning and locking rod. The surface of the second auxiliary sliding bevel edge is slidably inserted with the surface of the second extrusion bevel edge. A limiting block is fixedly connected to one end surface of the positioning and locking rod. A third compression spring is fixedly connected to the opposite inner wall of the second insertion slot at the other end of the third compression spring.

[0016] Preferably, it includes the following steps:

[0017] Step 1: When installing the cutting blade, control the locking insertion slot of the cutting blade to be inserted with the surface of the limiting and locking block. Take the cutting shaft and insert it into the central hole of the turntable. During the insertion, the arc surface of the cutting shaft presses against the sliding cutting edge, control the plurality of adjusting rods to move inward, press the first compression spring to generate pressure, and at the same time, the first extrusion bevel edges at one ends of the plurality of adjusting rods push the extrusion blocks at both ends to move to both sides;

[0018] Step 2: The plurality of extrusion blocks move outward simultaneously to press the second compression spring to generate pressure. At the same time, the second extrusion bevel edges at one ends of the plurality of extrusion blocks push the positioning and locking rods to move outward, so that one end of the positioning and locking rod leaves the surface of the limiting and locking block and is inserted into the inner wall of the positioning and locking slot for pressing and locking, thereby controlling the installation and locking of the cutting blade. When it needs to be replaced and disassembled, only need to disassemble the cutting shaft, and under the condition of pressure, automatically control the positioning and locking rod, the extrusion block and the adjusting rod to shrink and reset for disassembly and replacement;

[0019] Step 3: After the cutting disc is installed, when cutting an arc, control the cutting disc to perform a cutting operation with extrusion to one side. When pushing in for inward cutting, cutting thrust is provided. If the cutting resistance in the reverse direction during cutting movement is too large, it will cause the cutting surface to tilt, resulting in a change in the angle of the cutting shaft. When the angle sensor detects that the angle of the cutting shaft has shifted, control the electric telescopic rod to work. The electric telescopic rod extends or retracts, driving the sliding block to move up or down to adjust the angle of the cutting shaft, thereby controlling the cutting surface to be perpendicular to the cutting.

[0020] The beneficial effects of the present invention are as follows:

[0021] By setting up the angle adjustment mechanism and the quick installation and disassembly mechanism, when the grinding wheel cuts an arc, real-time monitoring is carried out through the angle sensor. When the angle of the cutting shaft changes, automatic adjustment is performed through the angle adjustment mechanism to ensure that the grinding wheel cuts vertically, thereby enhancing the cutting efficiency and the cutting quality; through the quick installation and disassembly mechanism, when the cutting surface of the grinding wheel is damaged, it is not necessary to control the entire grinding wheel to be scrapped. It only needs to replace the cutting disc, and the replacement speed is fast, the operation is simple, avoiding waste and reducing the cutting cost. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of a grinding wheel and a usage method dedicated to cutting an arc;

[0023] Figure 2 It is a three-dimensional view of the mounting seat structure of a grinding wheel and a usage method dedicated to cutting an arc;

[0024] Figure 3 It is an exploded view of the angle adjustment mechanism of a grinding wheel and a usage method dedicated to cutting an arc;

[0025] Figure 4 It is a cross-sectional view of the adjusting rod structure of a grinding wheel and a usage method dedicated to cutting an arc;

[0026] Figure 5 It is a cross-sectional view of the turntable structure of a grinding wheel and a usage method dedicated to cutting an arc;

[0027] Figure 6 It is for a grinding wheel and a usage method dedicated to cutting an arc Figure 5 Enlarged view of the structure at A;

[0028] Figure 7 It is an exploded view of the quick installation and disassembly mechanism of a grinding wheel and a usage method dedicated to cutting an arc;

[0029] Figure 8 It is for a grinding wheel and a usage method dedicated to cutting an arc Figure 7 Enlarged view of the structure at B.

[0030] In the figure: 1, mounting base; 2, locking hole; 3, installation socket; 4, sliding block; 41, slider; 42, chute; 43, power installation groove; 44, electric telescopic rod; 45, detection installation hole; 46, angle sensor; 47, locking nut; 48, protective cover; 5, fixed block; 6, angular contact bearing; 7, cutting shaft; 8, turntable; 9, adjusting rod; 91, first socket; 92, first compression spring; 93, first extrusion bevel; 94, sliding bevel; 95, limit locking block; 96, cutting installation groove; 97, cutting disc; 98, locking socket; 99, positioning locking groove; 910, second socket; 911, extrusion block; 912, second extrusion bevel; 913, second compression spring; 914, third socket; 915, positioning locking rod; 916, limit block; 917, third compression spring; 918, second auxiliary sliding bevel; 919, first auxiliary sliding bevel; 10, first socket hole. Specific implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] Referring to Figure 1-8 , a grinding wheel and a using method dedicated to cutting arcs, including a mounting base 1. The surface of the mounting base 1 is in a U shape. Locking holes 2 are opened at the top of the mounting base 1. The inner walls of multiple holes are all threadedly connected to the mounting surface of the cutting device through screws. Mounting sockets 3 are opened on both side surfaces of the mounting base 1. An angle adjustment mechanism is arranged on the inner wall of one mounting socket 3. The angle adjustment mechanism includes a sliding block 4. The two side surfaces of the sliding block 4 are slidably inserted into the inner walls of the opposite mounting sockets 3.

[0033] Sliders 41 are fixedly connected to both side surfaces of the sliding block 4. Chutes 42 are opened on both inner walls of the mounting socket 3. The inner walls of the chutes 42 are slidably inserted into the surfaces of the sliders 41. Further, the sliding block 4 slides on the inner wall of the mounting socket 3 through the sliding cooperation of the slider 41 and the chute 42, driving the surface of the sliding block 4 to slide on the inner wall of the mounting socket 3, enhancing the smoothness of the up and down movement of the sliding block 4, preventing deviation during movement, and the slider 41 can also control the left and right limits of the sliding block 4, so that the sliding block 4 can only move up and down for adjustment.

[0034] A power installation groove 43 is opened on the inner top wall of the mounting socket 3. An electric telescopic rod 44 is fixedly installed on the inner wall of the power installation groove 43. The telescopic end of the electric telescopic rod 44 is fixedly installed on the top of the opposite sliding block 4. Further, the up and down movement adjustment of the sliding block 4 is carried out by the extension or retraction of the electric telescopic rod 44, driving the sliding block 4 to move up and down for adjustment.

[0035] Another installation and insertion slot 3 is threadedly connected with a fixing block 5 by screws. Angular contact bearings 6 are fixedly installed on one side surface of the fixing block 5 and one side surface of the sliding block 4 respectively. Inner rings of the two angular contact bearings 6 are fixedly connected with a cutting shaft 7. A turntable 8 is press-fitted and inserted on the arc surface of the cutting shaft 7.

[0036] A detection installation hole 45 is formed on the central surface of one end of the cutting shaft 7. An angle sensor 46 is fixedly installed on one side surface of the fixing block 5. A detection shaft of the angle sensor 46 is clamped with the inner wall of the detection installation hole 45. The angle sensor 46 is electrically connected with the electric telescopic rod 44. Locking nuts 47 are threadedly connected to the arc surface of the cutting shaft 7. The two locking nuts 47 are respectively located on both sides of the turntable 8. Further, after the arc surface of the cutting shaft 7 and the turntable 8 are press-fitted, the turntable 8 is locked and limited by the locking nuts 47 on both sides of the turntable 8 to prevent the turntable 8 from leaving the surface of the cutting shaft 7 during the rotation of the cutting shaft 7. And the angle change of the cutting shaft 7 is monitored in real time through the angle sensor 46. When the cutting shaft 7 has an angle change during the cutting process, the electric telescopic rod 44 is automatically controlled to work, achieving an automatic adjustment effect, so that the cutting always maintains a vertical state, thereby ensuring the perpendicularity of the inner wall of the cutting arc, preventing the inner wall of the arc from tilting due to inclination during cutting, and thus enhancing the cutting quality.

[0037] The inner top wall of the mounting seat 1 is fixedly connected with a protective cover 48. The surface of the protective cover 48 is arc-shaped and is distributed in a semi-circular ring shape. The surface of the turntable 8 is located inside the protective cover 48. Further, dust and iron filings generated during the cutting process are blocked by the protective cover 48, preventing them from splashing out and causing sparks during the cutting process to affect the safety of the staff and the fire hazard in the workshop.

[0038] A quick installation and disassembly mechanism is arranged inside the turntable 8. The quick installation and disassembly mechanism includes an adjusting rod 9. A first insertion hole 10 is formed inside the turntable 8. A plurality of first insertion holes 10 are evenly arranged in an equidistant manner with the axis of the cutting shaft 7 as the center of the circle. The surface of the adjusting rod 9 is slidably inserted into the inner wall of the first insertion hole 10.

[0039] Multiple adjusting rods 9 are grouped into two groups with six in each group, namely a long group and a short group. Multiple first insertion holes 10 are grouped into two groups with six in each group, namely long holes and short holes. The long group corresponds to the long holes, and the short group corresponds to the short holes. On both side walls of the inner bottom of the multiple first insertion holes 10, first insertion slots 91 are provided. The inner walls of the multiple first insertion slots 91 are fixedly communicated with both side surfaces of the turntable 8. The inner bottom wall of the first insertion hole 10 is fixedly connected with a first compression spring 92. One end of the first compression spring 92 is fixedly connected with the opposite end of the adjusting rod 9. On both side surfaces of one end of the adjusting rod 9, first extrusion inclined edges 93 are provided. On the surface of the other end of the adjusting rod 9, sliding inclined edges 94 are provided. The multiple sliding inclined edges 94 are all slidably inserted into the surface of the cutting shaft 7. Further, the multiple adjusting rods 9 are arranged separately in long and short lengths, which is convenient for the integral installation and locking of the cutting blade 97 during installation, and prevents tilting during installation. By installing the cutting shaft 7, the arc surface thereof extrudes the sliding inclined edge 94 at one end of the adjusting rod 9, controlling the simultaneous movement of the multiple adjusting rods 9 and squeezing the first compression spring 92 to generate pressure.

[0040] The inner wall of the first insertion slot 91 is fixedly connected with a limit locking block 95. On both side surfaces of the turntable 8, cutting installation slots 96 are provided. The inner wall of the cutting installation slot 96 is fixedly connected with a cutting blade 97. On one side surface of the cutting blade 97, a locking insertion slot 98 is provided. The inner wall of the locking insertion slot 98 is slidably inserted with the surface of the limit locking block 95. On both inner side walls of the locking insertion slot 98, positioning locking slots 99 are provided. Further, when installing the cutting blade 97, it only needs to control the surface of the limit locking block 95 to be inserted into the inner wall of the locking insertion slot 98, thereby achieving the effect of quickly installing the cutting blade 97.

[0041] On one side surface of the limit locking block 95, a second insertion slot 910 is provided. A squeezing block 911 is slidably inserted into the inner wall of the second insertion slot 910. On one end surface of the squeezing block 911, a first auxiliary sliding inclined edge 919 is provided. The first auxiliary sliding inclined edge 919 is slidably inserted with the surface of the first extrusion inclined edge 93. On both side surfaces of the other end of the squeezing block 911, second extrusion inclined edges 912 are provided. The inner bottom wall of the second insertion slot 910 is fixedly connected with a second compression spring 913. The other end of the second compression spring 913 is fixedly connected with the opposite surface of the squeezing block 911. Further, the first extrusion inclined edge 93 at one end of the adjusting rod 9 squeezes the two squeezing blocks 911 to move outward simultaneously, controlling the squeezing block 911 to squeeze the second compression spring 913 to generate pressure. When the squeezing force is reduced and removed, the second compression spring 913 drives the squeezing block 911 to retract and reset.

[0042] On both sides of one end of the second socket 910, third sockets 914 are provided. A positioning and locking rod 915 is slidably inserted into the inner wall of the third socket 914. One end of the positioning and locking rod 915 is inclined. One end of the positioning and locking rod 915 is slidably inserted into the inner wall of the positioning and locking groove 99. A second auxiliary sliding bevel 918 is provided at the other end of the positioning and locking rod 915. The surface of the second auxiliary sliding bevel 918 is slidably inserted into the surface of the second pressing bevel 912. A limiting block 916 is fixedly connected to the surface of one end of the positioning and locking rod 915. A third compression spring 917 is fixedly connected to the surface of one end of the limiting block 916. The other end of the third compression spring 917 is fixedly connected to the opposite inner wall of the second socket 910. Further, when the extrusion block 911 moves, it controls the second auxiliary sliding bevel 918 to extrude the positioning and locking rod 915 to move outwards, so that it is clamped inside the positioning and locking groove 99 for locking and positioning. At the same time, the limiting block 916 extrudes the third compression spring 917 to generate pressure. When the extrusion force of the extrusion block 911 decreases, under the elastic force of the third spring, it controls the positioning and locking rod 915 to retract and reset for disassembly.

[0043] By setting the angle adjustment mechanism and the quick installation and disassembly mechanism, when the grinding wheel cuts an arc, it is monitored in real time by the angle sensor 46. When the angle of the cutting shaft 7 changes, it is automatically adjusted by the angle adjustment mechanism to ensure that the grinding wheel cuts vertically, thereby enhancing the cutting efficiency and the cutting quality. By the quick installation and disassembly mechanism, when the cutting surface of the grinding wheel is damaged, it is not necessary to control the entire grinding wheel to be scrapped. It only needs to replace the cutting blade 97, and the replacement speed is fast, the operation is simple, waste is avoided, and the cutting cost is reduced.

[0044] Working principle: Step 1: When the cutting blade 97 is installed, control the locking socket 98 of the cutting blade 97 to be inserted into the surface of the limit locking block 95. Take the cutting shaft 7 and insert it into the central hole of the turntable 8. During the insertion, the arc surface of the cutting shaft 7 presses the sliding cutting edge, controls the plurality of adjusting rods 9 to move inwards, presses the first compression spring 92 to generate pressure, and at the same time, the first pressing bevel 93 at one end of the plurality of adjusting rods 9 pushes the extrusion blocks 911 at both ends to move towards both sides;

[0045] Step 2: The plurality of extrusion blocks 911 move outwards simultaneously to press the second compression spring 913 to generate pressure. At the same time, the second pressing bevel 912 at one end of the plurality of extrusion blocks 911 pushes the positioning and locking rod 915 to move outwards, so that one end of it leaves the surface of the positioning and locking block and is inserted into the inner wall of the positioning and locking groove 99 for extrusion and locking. Thus, the installation and locking of the cutting blade 97 are controlled. When replacement and disassembly are required, only the cutting shaft 7 needs to be disassembled, and under the condition of pressure, the positioning and locking rod 915, the extrusion block 911, and the adjusting rod 9 are automatically controlled to retract and reset for disassembly and replacement;

[0046] Step 3: After the cutting disc 97 is installed, when cutting an arc, control the cutting disc 97 to perform a cutting operation with extrusion to one side. When pushing in for inward cutting, a cutting thrust is provided. If the reverse cutting resistance during cutting movement is too large, the cutting surface will tilt, resulting in a change in the angle of the cutting shaft 7. When the angle sensor 46 detects that the angle of the cutting shaft 7 has shifted, control the electric telescopic rod 44 to work. The electric telescopic rod 44 extends or retracts, driving the sliding block 4 to move up or down to adjust the angle of the cutting shaft 7, thereby controlling the cutting surface to be perpendicular to the cutting.

[0047] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A grinding wheel dedicated to cutting arcs, comprising a mounting base (1), characterized in that: The surface of the mounting seat (1) is in a U-shaped shape, a locking hole (2) is provided at the top of the mounting seat (1), the inner walls of the plurality of locking holes (2) are threadedly connected to the mounting surface of the cutting device through screws, mounting slots (3) are provided on both side surfaces of the mounting seat (1), an angle adjustment mechanism is provided on the inner wall of one of the mounting slots (3), the angle adjustment mechanism comprises a sliding block (4), and the two side surfaces of the sliding block (4) are slidably connected to the inner wall of the mounting slot (3); The two side surfaces of the sliding block (4) are fixedly connected with sliding blocks (41); the inner walls of the two side walls of the installation and insertion groove (3) are provided with sliding grooves (42); the inner walls of the sliding grooves (42) are slidably plugged with the surfaces of the sliding blocks (41); the inner top wall of the installation and insertion groove (3) is provided with a power installation groove (43); the inner wall of the power installation groove (43) is fixedly installed with an electric telescopic rod (44); the telescopic end of the electric telescopic rod (44) is fixedly installed relative to the top of the sliding block (4); The other mounting socket (3) is connected to a fixed block (5) by a screw thread, and an angular contact bearing (6) is fixedly installed on one side surface of the fixed block (5) and one side surface of the sliding block (4), and the inner rings of the two angular contact bearings (6) are fixedly connected to a cutting shaft (7), and a turntable (8) is plugged in with an interference fit on the arc surface of the cutting shaft (7), and a quick installation and disassembly mechanism is arranged inside the turntable (8), and the quick installation and disassembly mechanism includes an adjusting rod (9), and a first plug-in hole (10) is opened inside the turntable (8), and a plurality of the first plug-in holes (10) are evenly and equally distributed with the axis of the cutting shaft (7) as the center of the circle, and the surface of the adjusting rod (9) is slidably plugged into the inner wall of the first plug-in hole (10); The plurality of adjusting rods (9) are grouped into two groups of six, namely a long group and a short group; the plurality of first plugging holes (10) are grouped into two groups of six, namely a long hole and a short hole; the long group corresponds to the long hole, and the short group corresponds to the short hole; the inner bottom side walls of the plurality of first plugging holes (10) are provided with first plugging grooves (91); the inner walls of the plurality of first plugging grooves (91) are fixedly connected to the two side surfaces of the rotating disk (8); the inner bottom wall of the first plugging hole (10) is fixedly connected with a first compression spring (92); one end of the first compression spring (92) is fixedly connected to the opposite end of the adjusting rod (9); the two side surfaces of one end of the adjusting rod (9) are provided with first extrusion bevels (93); the other end surface of the adjusting rod (9) is provided with sliding bevels (94); the plurality of sliding bevels (94) are all slidably plugged with the surface of the cutting shaft (7).

2. The grinding wheel dedicated to cutting arcs according to claim 1, wherein: A detection mounting hole (45) is provided on the central surface at one end of the cutting shaft (7). An angle sensor (46) is fixedly mounted on one side surface of the fixed block (5). The detection shaft of the angle sensor (46) is clamped with the inner wall of the detection mounting hole (45). The angle sensor (46) is electrically connected to the electric telescopic rod (44). The arc surface of the cutting shaft (7) is threadedly connected with a locking nut (47). The two locking nuts (47) are respectively located on both sides of the turntable (8).

3. The grinding wheel dedicated to cutting arcs according to claim 2, characterized in that: A protective cover (48) is fixedly connected to the inner top wall of the mounting seat (1). The surface of the protective cover (48) is arc-shaped and is distributed in a semi-circular ring shape. The surface of the turntable (8) is located inside the protective cover (48).

4. A grinding wheel dedicated to cutting arcs according to claim 3, characterized in that: A limit locking block (95) is fixedly connected to the inner wall of the first insertion slot (91). Cutting mounting slots (96) are provided on both side surfaces of the turntable (8). A cutting blade (97) is fixedly connected to the inner wall of the cutting mounting slot (96). A locking insertion slot (98) is provided on one side surface of the cutting blade (97). The surface of the limit locking block (95) is slidably inserted into the inner wall of the locking insertion slot (98). Positioning locking slots (99) are provided on both inner walls of the locking insertion slot (98).

5. A grinding wheel dedicated to cutting arcs according to claim 4, characterized in that: A second insertion slot (910) is provided on one side surface of the limit locking block (95). A pressing block (911) is slidably inserted into the inner wall of the second insertion slot (910). A first auxiliary sliding bevel edge (919) is provided on one end surface of the pressing block (911). The surface of the first auxiliary sliding bevel edge (919) is slidably inserted into the surface of the first pressing bevel edge (93). Second pressing bevel edges (912) are provided on both side surfaces of the other end of the pressing block (911). A second compression spring (913) is fixedly connected to the inner bottom wall of the second insertion slot (910). The other end of the second compression spring (913) is fixedly connected to the opposite surface of the pressing block (911).

6. A grinding wheel dedicated to cutting arcs according to claim 5, characterized in that: Third insertion slots (914) are provided on both side surfaces at one end of the second insertion slot (910). A positioning locking rod (915) is slidably inserted into the inner wall of the third insertion slot (914). One end of the positioning locking rod (915) is inclined. One end of the positioning locking rod (915) is slidably inserted into the inner wall of the positioning locking slot (99). A second auxiliary sliding bevel edge (918) is provided on the other end of the positioning locking rod (915). The surface of the second auxiliary sliding bevel edge (918) is slidably inserted into the surface of the second pressing bevel edge (912). A limit block (916) is fixedly connected to one end surface of the positioning locking rod (915). A third compression spring (917) is fixedly connected to the opposite inner wall of the second insertion slot (910) at the other end of the limit block (916).

7. The usage method of a grinding wheel dedicated to cutting arcs according to claim 6, characterized in that: Including the following steps: Step 1: When installing the cutting disc (97), the locking and inserting groove (98) of the cutting disc (97) is controlled to be inserted into the surface of the limit locking block (95), and the cutting shaft (7) is taken and inserted into the center hole of the rotating disk (8). During the insertion, the arc surface of the cutting shaft (7) squeezes the sliding cutting edge, and the multiple adjustment rods (9) are controlled to move inward to squeeze the first compression spring (92) to generate pressure. At the same time, the first extrusion bevel (93) at one end of the multiple adjustment rods (9) pushes the extrusion blocks (911) at both ends to move to both sides; Step 2: Multiple extrusion blocks (911) simultaneously move outward to squeeze the second compression spring (913) to generate pressure, and at the same time, the second extrusion bevel (912) at one end of the multiple extrusion blocks (911) pushes the positioning locking rod (915) to move outward, so that one end of the positioning locking rod leaves the surface of the positioning locking block and is inserted into the inner wall of the positioning locking groove (99) for extrusion and locking, thereby controlling the cutting blade (97) to be installed and locked. When replacement and disassembly are required, only the cutting shaft (7) needs to be disassembled, and the positioning locking rod (915), the extrusion block (911) and the adjustment rod (9) are automatically controlled to retract and return to their original position under pressure for disassembly and replacement; Step 3, after the cutting blade (97) is installed, when cutting an arc, the cutting blade (97) is controlled to perform a squeezing and cutting operation to one side. When pushing inward, a cutting thrust is provided, and the cutting resistance in the opposite direction during the cutting movement is too large, which causes the cutting surface to tilt, thereby causing the angle of the cutting axis (7) to change. The angle sensor (46) detects that the angle of the cutting axis (7) is offset, and controls the electric telescopic rod (44) to work. The electric telescopic rod (44) is extended or retracted, driving the sliding block (4) to move up or down, and adjusting the angle of the cutting axis (7), thereby controlling the cutting surface to cut vertically.

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