Grinding machine capable of rapidly rotating grinding wheel cover

Abstract

The utility model discloses a grinding machine with a fast rotating grinding wheel cover, which comprises a cover body, a chuck and a main machine, the chuck is fixedly connected with the main machine, the cover body is provided with a through hole for a rotating shaft of the main machine to penetrate through, the diameter of the through hole is smaller than that of the chuck, and the cover body is rotatably arranged between the chuck and the main machine. The cover body is provided with a sliding groove in the circumferential direction, and the chuck is provided with a clamping block connected with the sliding groove in a sliding mode. The cover body is clamped between the chuck and the main machine, when the rotating angle of the cover body needs to be adjusted, only the cover body needs to be rotated, the clamping block slides to a proper position along the sliding groove, and compared with a traditional dismounting mode of a screw and a nut, operation is more convenient and faster. The limiting assembly is located on one side of the cover body, the sliding groove is correspondingly located on the other side of the cover body, when the rotation angle of the cover body needs to be adjusted, the cover body is rotated, the clamping block slides along the sliding groove, when the cover body is rotated to a proper position, the protrusion on the first limiting plate is matched with the groove, the cover body is limited in the circumferential direction, and the cover body is prevented from rotating under the condition that no external force exists.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding wheels, in particular to a grinding machine with a rapidly rotatable grinding wheel cover. Background Art

[0002] During the machining process, to ensure the accuracy of the dimensions of the machined parts and the smoothness of the part surfaces, it is necessary to grind or cut the part surfaces. With the progress of technology, various grinding machines have replaced traditional manual grinding. Among them, the grinding wheel and the grinding wheel cover are important components of the grinding device. The 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 has a certain strength. The grinding wheel cover is regarded as a safety protection component in the machine, and its circumferential protection plays a crucial role. Once the grinding wheel, cutting disc, grinding disc, etc. explode, the circumferential protection of the grinding wheel cover will bear the blasting impact, thereby protecting the user and the machine itself. The use of the grinding wheel cover on power tools is also extremely frequent. For an angle grinder, generally, most grinding wheel covers adopt the screw + nut tightening method. Every time the grinding wheel cover needs to be rotated, the screws must be disassembled. Not only is the process cumbersome, but long-term disassembly also has a certain impact on the service life of the screws and nuts. Summary of the Utility Model

[0003] Aiming at the technical problem that the screws must be disassembled every time the existing grinding wheel cover needs to be rotated, the utility model provides a grinding machine with a rapidly rotatable grinding wheel cover. The cover body is clamped between the chuck and the main body. When it is necessary to adjust the rotation angle of the cover body, only the cover body needs to be rotated so that the clamping block slides along the chute to an appropriate position.

[0004] The technical solution adopted by the utility model is as follows: A grinding machine includes a cover body, a chuck and a main body. The chuck is fixedly connected to the main body. The cover body is provided with a through hole for the rotating shaft of the main body to pass through. The diameter of the through hole is smaller than the diameter of the chuck. The cover body rotates between the chuck and the main body. The cover body is provided with a chute along the circumferential direction, and the chuck is provided with a clamping block slidably connected to the chute.

[0005] Optionally, the cover body is provided with a limiting component along the circumferential direction. The limiting component is arranged corresponding to the chute. The limiting component includes a plurality of spaced grooves. The chuck is provided with a first limiting plate. A protrusion cooperating with the groove is provided on the surface of the first limiting plate facing the cover body.

[0006] Optionally, the cross section of the protrusion is circular or oval, and the groove is an arc groove cooperating with the protrusion.

[0007] Optionally, the number of the first limiting plates is multiple, and the multiple first limiting plates are evenly spaced along the circumferential direction of the chuck.

[0008] Optionally, the chuck is provided with a second limiting plate, and the second limiting plate is bent towards the cover body to form the clamping block.

[0009] Optionally, it further includes a grinding wheel. The main body includes a housing, a rotating shaft and a driving system. The driving system is located inside the housing. One end of the rotating shaft is connected to the driving system, and the other end of the rotating shaft extends out of the housing and is connected to the grinding wheel. The chuck is connected to the housing by screws, and the grinding wheel is connected to the rotating shaft by bolts.

[0010] Optionally, the cover body includes a connecting portion and a covering portion. The connecting portion is provided with the through hole, the covering portion is of a semi-circular structure, and the covering portion is provided with a slideway for the grinding wheel to rotate through.

[0011] Optionally, a gasket is provided between the cover body and the housing.

[0012] The beneficial effects of the present utility model are as follows: The cover body is clamped between the chuck and the main body. When it is necessary to adjust the rotation angle of the cover body, only the cover body needs to be rotated so that the clamping block slides along the chute to a suitable position. Compared with the traditional disassembly method of screw + nut, the operation is more convenient. The limiting component is located on one side of the cover body, and the chute is correspondingly located on the other side of the cover body. When it is necessary to adjust the rotation angle of the cover body, the cover body is rotated to make the clamping block slide along the chute. When rotated to the appropriate position, the protrusion on the first limiting plate cooperates with the groove to perform circumferential limitation on the cover body, preventing the cover body from rotating without external force. Description of the Drawings

[0013] Figure 1 It is a schematic structural view of the grinding machine proposed by the embodiment of the present utility model;

[0014] Figure 2 It is a schematic view of the cover body of the grinding machine proposed by the embodiment of the present utility model;

[0015] Figure 3 It is a schematic view of the chuck of the grinding machine proposed by the embodiment of the present utility model;

[0016] Figure 4 It is a schematic view of assembling the grinding wheel of the grinding machine proposed by the embodiment of the present utility model;

[0017] Figure 5 It is a schematic view of the gasket of the grinding machine proposed by the embodiment of the present utility model

[0018] The reference signs in each drawing are: 1, cover body; 11, connecting portion; 12, covering portion; 13, through hole; 14, slideway; 15, chute; 16, groove; 2, chuck; 21, first limiting plate; 22, second limiting plate; 23, protrusion; 24, clamping block; 3, main body; 31, housing; 32, rotating shaft; 4, grinding wheel; 5, screw; 6, bolt; 7, gasket. Detailed implementation mode

[0019] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] As Figures 1 to 4 shown, this embodiment discloses a grinding wheel, including a cover body 1, a chuck 2 and a main body 3. The chuck 2 is fixedly connected to the main body 3. The cover body 1 is provided with a through hole 13 for the rotation shaft 32 of the main body 3 to pass through. The diameter of the through hole 13 is smaller than the diameter of the chuck 2. The cover body 1 is rotatably located between the chuck 2 and the main body 3. The cover body 1 is provided with a sliding groove 15 along the circumferential direction, and the chuck 2 is provided with a clamping block 24 slidably connected to the sliding groove 15. The cover body 1 is clamped between the chuck 2 and the main body 3. When it is necessary to adjust the rotation angle of the cover body 1, only need to rotate the cover body 1 to make the clamping block 24 slide along the sliding groove 15 to a suitable position. Compared with the traditional disassembly method of screw 5 + nut, the operation is more convenient.

[0021] As Figure 2 and 3 shown, the cover body 1 is provided with a limiting component along the circumferential direction. The limiting component is arranged corresponding to the sliding groove 15. The limiting component includes a plurality of spaced grooves 16. The chuck 2 is provided with a first limiting plate 21. One side of the first limiting plate 21 facing the cover body 1 is provided with a protrusion 23 cooperating with the groove 16. The limiting component is located on one side of the cover body 1, and the sliding groove 15 is correspondingly located on the other side of the cover body 1. When it is necessary to adjust the rotation angle of the cover body 1, rotate the cover body 1 to make the clamping block 24 slide along the sliding groove 15. When rotated to a suitable position, the protrusion 23 on the first limiting plate 21 cooperates with the groove 16 to perform circumferential limitation on the cover body 1, preventing the cover body 1 from rotating without external force. The cross section of the protrusion 23 is circular or oval, and the groove 16 is an arc groove cooperating with the protrusion 23. As the cover body 1 rotates, the circular protrusion 23 is easy to move along a plurality of arc grooves in sequence under the action of human force.

[0022] As Figure 3 shown, the diameter of the chuck 2 is smaller than the length of the first limiting plate 21. The free end of the first limiting plate 21 protrudes from the edge of the chuck 2. The first limiting plate 21 further plays a pressing role on the cover body 1, so that the cover body 1 is stably located between the chuck 2 and the main body 3. The number of the first limiting plates 21 is multiple, and the multiple first limiting plates 21 are evenly spaced along the circumferential direction of the chuck 2. The chuck 2 is provided with a second limiting plate 22, and the second limiting plate 22 is bent towards the cover body 1 to form the clamping block 24. The first limiting plate 21, the second limiting plate 22 and the chuck 2 are of an integrally formed structure.

[0023] As Figure 1 and 5As shown in the figure, it further includes a grinding wheel 4. The main body 3 includes a housing 31, a rotating shaft 32 and a drive system. The drive system is located inside the housing 31. One end of the rotating shaft 32 is connected to the drive system, and the other end of the rotating shaft 32 extends out of the housing and is connected to the grinding wheel 4. The chuck 2 is connected to the housing 31 by screws 5, and the grinding wheel 4 is connected to the rotating shaft 32 by bolts 6. The connection by screws 5 facilitates the disassembly of the chuck 2 from the housing 31, and the connection by bolts 6 facilitates the disassembly of the grinding wheel 4 from the rotating shaft. A gasket 7 is provided between the grinding wheel 4 and the bolt 6 and between the cover 1 and the housing 31. The gasket 7 is made of a flexible material and functions as wear resistance. The main body is a prior art, and the rotating shaft 32 can rotate bidirectionally under the drive of the drive system.

[0024] As Figure 2 shown in the figure, the cover 1 includes a connecting portion 11 and a covering portion 12. The connecting portion 11 is provided with the through hole 13. The covering portion 12 is of a semi-circular structure. The covering portion 12 is provided with a slideway 14 for the grinding wheel 4 to rotate through. The covering portion 12 functions to prevent dust. The surface of the covering portion 12 is provided with a rotation direction mark of the grinding wheel 4.

[0025] It can be understood that the specific embodiments described above are only used to explain the relevant utility model, rather than limiting the utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the utility model are shown in the drawings. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions without contradiction or conflict. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model, directly or indirectly applied in other related technical fields, is equally included in the protection scope of the present utility model.

Claims

1. A grinding machine with a rapidly rotating grinding wheel cover, characterized in that, It includes a cover body, a chuck and a main body. The chuck is fixedly connected to the main body. The cover body is provided with a through hole for the rotation shaft of the main body to pass through. The diameter of the through hole is smaller than the diameter of the chuck. The cover body rotates between the chuck and the main body. The cover body is provided with a sliding groove along the circumferential direction, and the chuck is provided with a clamping block slidably connected to the sliding groove.

2. The grinding machine with a rapidly rotating grinding wheel cover according to claim 1, characterized in that, The cover body is provided with a limiting component along the circumferential direction. The limiting component is arranged corresponding to the sliding groove. The limiting component includes a plurality of spaced grooves. The chuck is provided with a first limiting plate, and a protrusion cooperating with the groove is arranged on the surface of the first limiting plate facing the cover body.

3. The grinding machine with a rapidly rotating grinding wheel cover according to claim 2, characterized in that, The cross-section of the protrusion is circular or elliptical, and the groove is an arc groove cooperating with the protrusion.

4. The grinding machine with a rapidly rotating grinding wheel cover according to claim 2, characterized in that, The diameter of the chuck is smaller than the length of the first limiting plate.

5. The grinding machine with a rapidly rotating grinding wheel cover according to claim 2, characterized in that, The number of the first limiting plates is multiple, and the multiple first limiting plates are evenly spaced along the circumferential direction of the chuck.

6. The grinding machine with a rapidly rotating grinding wheel cover according to claim 1, characterized in that, The chuck is provided with a second limiting plate, and the second limiting plate is bent towards the cover body to form the clamping block.

7. The grinding machine with a rapidly rotating grinding wheel cover according to claim 1, characterized in that, It further includes a grinding wheel. The main body includes a housing, a rotation shaft and a driving system. The driving system is located inside the housing. One end of the rotation shaft is connected to the driving system, and the other end of the rotation shaft extends out of the housing and is connected to the grinding wheel. The chuck is connected to the housing by screws, and the grinding wheel is connected to the rotation shaft by bolts.

8. The grinding machine with a rapidly rotating grinding wheel cover according to claim 1, wherein, The cover body includes a connecting part and a cover part. The connecting part is provided with the through hole. The cover part is of a semi-circular structure, and the cover part is provided with a sliding track for the grinding wheel to rotate through.

9. The grinding machine with a rapidly rotating grinding wheel cover according to claim 1, characterized in that, A gasket is arranged between the cover body and the housing.

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