A grinding wheel machine with a protective device

Abstract

This utility model relates to the field of grinding wheel technology, and more particularly to a grinding wheel machine with a protective device. The technical solution includes a fixed base, protective covers, a machine housing, and a grinding wheel. Protective covers are fixedly installed on both sides of the machine housing, with the grinding wheel located inside the protective covers. Cover plates are fixedly installed on the outer sides of both protective covers. A first sliding groove is provided at the inner edge of each of the two cover plates, and a second sliding groove is provided near the inner edge of the inner wall of each of the two protective covers. An opening is provided on the front surface of each of the two protective covers. Two arc-shaped sliding plates are provided inside each of the two protective covers near the opening, with their sides located within the first and second sliding grooves, respectively. This utility model allows the size of the opening on the protective cover to be adjusted according to the size of the workpiece, to better block flying particles and grinding wheel fragments after explosion, thereby improving the safety of the grinding wheel machine.

Description

Technical Field

[0001] This utility model relates to the field of grinding wheel technology, specifically a grinding wheel with a protective device. Background Technology

[0002] A grinding wheel machine is an electric tool that uses a high-speed rotating grinding wheel to grind, cut, remove rust, or polish hard materials such as metal and stone. It is widely used in machining, hardware repair, building decoration and other fields. The grinding wheel machine is mainly composed of a motor, grinding wheel, protective cover and operating table. Its core component is the grinding wheel (made of abrasive and binder pressed and sintered). Driven by a motor, it can reach a speed of thousands of revolutions per minute. The abrasive grains on the surface of the grinding wheel are used to process the workpiece.

[0003] In current grinding machines, the size of the opening on the protective cover for the workpiece to contact the grinding wheel is usually fixed, so it is impossible to adjust the size of the opening according to the size of the workpiece. As a result, the flying particles generated by the grinding wheel during the grinding process can easily cause eye irritation to the operator. In addition, when the grinding wheel breaks, fragments can easily fly out from the opening and cause injury. Therefore, we propose a grinding machine with a protective device. Utility Model Content

[0004] The purpose of this utility model is to provide a grinding machine with a protective device. This device allows for adjustment of the size of the opening on the protective cover according to the size of the workpiece, thereby better blocking flying particles and grinding wheel fragments after a grinding wheel bursts. This improves the safety of the grinding machine and solves the problem that in current grinding machines, the size of the opening on the protective cover for the workpiece to contact the grinding wheel is usually fixed, making it impossible to adjust the size of the opening according to the size of the workpiece. As a result, flying particles generated during the grinding process can easily cause eye irritation to the operator, and when the grinding wheel bursts, fragments can easily fly out of the opening and cause injury.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding wheel machine with a protective device, comprising a fixed base, a protective cover, a machine housing, and a grinding wheel. Protective covers are fixedly installed on both sides of the machine housing, with the grinding wheel located inside the protective covers. Cover plates are fixedly installed on the outer sides of both protective covers. First grooves are provided at the inner edges of both cover plates. Second grooves are provided on the inner walls of both protective covers near their inner edges. Openings are provided on the front surfaces of both protective covers. Two arc-shaped sliding plates are provided inside the two protective covers near their openings, with their sides located within the first and second grooves, respectively. Fan-shaped baffles are fixedly installed on the outer surfaces of all four arc-shaped sliding plates near their sides.

[0006] Preferably, a base is fixedly installed on the upper surface of the fixed base, a housing is fixedly installed on the upper surface of the base, a rotating motor is fixedly installed inside the housing, a grinding wheel is fixedly installed on both output ends of the rotating motor, and fixing holes are provided on the upper surface of the fixed base near the four corners.

[0007] Preferably, nuts are fixedly installed on the outer surfaces of the two protective covers at positions above and below the opening, and locking screws are movably inserted into the interior of the two nuts, with the locking screws penetrating the protective covers.

[0008] Preferably, a toggle block is fixedly installed on one end of the outer surface of each of the four arc-shaped sliding plates located inside the opening.

[0009] Preferably, a control switch is fixedly installed on the front surface of the base.

[0010] Preferably, a speed regulator is fixedly installed on the front surface of the base.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by setting a fixed base, base, housing, protective cover, cover plate, opening, first slide groove, second slide groove, arc-shaped slide plate, and fan-shaped baffle, achieves the effect of adjusting the size of the opening on the protective cover according to the size of the workpiece, so as to better block flying particles and grinding wheel fragments after explosion, thereby improving the safety of the grinding machine. The workpiece is in contact with the grinding wheel at the opening and is ground by the grinding wheel. The workpiece is located between two arc-shaped slide plates. The two arc-shaped slide plates inside the protective cover are slid by the first slide groove and the second slide groove, controlling the distance between the two arc-shaped slide plates to adapt to different workpiece sizes. The fan-shaped baffles on both sides of the grinding wheel also play a blocking role, which can better block flying particles and grinding wheel fragments after explosion, thereby improving the safety of the grinding machine.

[0013] 2. This utility model achieves the effect of easily fixing the arc-shaped slide by setting a nut and a locking screw. Tightening the locking screw so that its end contacts the outer surface of the arc-shaped slide, thereby fixing the arc-shaped slide by the friction between the locking screw and the arc-shaped slide.

[0014] 3. By setting a speed regulator, this utility model can adjust the rotation speed of the rotating motor according to the needs of use, thereby controlling the rotation speed of the grinding wheel to adapt to the grinding requirements of different workpieces and improve applicability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2This is a partial three-dimensional structural diagram of the cover plate of this utility model;

[0017] Figure 3 This is a partial three-dimensional structural diagram of the protective cover of this utility model;

[0018] Figure 4 This is a partial three-dimensional structural diagram of the arc-shaped skateboard of this utility model;

[0019] Figure 5 This is a schematic diagram of the main structure of this utility model.

[0020] Reference numerals in the attached drawings: 1. Fixed base; 2. Base; 3. Fixing hole; 4. Cover plate; 5. Protective cover; 6. Housing; 7. Arc-shaped sliding plate; 8. Control switch; 9. Speed ​​regulator; 10. First slide groove; 11. Second slide groove; 12. Opening; 13. Nut; 14. Locking screw; 15. Fan-shaped baffle; 16. Actuating block; 17. Grinding wheel; 18. Rotating motor. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1-5 As shown, the present invention proposes a grinding wheel machine with a protective device, comprising a fixed base 1, a protective cover 5, a machine housing 6, and a grinding wheel 17. A base 2 is fixedly installed on the upper surface of the fixed base 1, and a machine housing 6 is fixedly installed on the upper surface of the base 2. A rotating motor 18 is fixedly installed inside the machine housing 6, and grinding wheels 17 are fixedly installed on both output ends of the rotating motor 18. A control switch 8 and a speed regulator 9 are fixedly installed on the front surface of the base 2. Both the control switch 8 and the speed regulator 9 are electrically connected to the rotating motor 18. The control switch 8 controls the start and stop of the rotating motor 18, while the speed regulator 9 controls the rotation speed of the rotating motor 18, thereby controlling the rotation speed of the grinding wheel 17 to adapt to the grinding requirements of different workpieces and improve applicability. Fixing holes 3 are provided near the four corners on the upper surface of the fixed base 1. Bolts pass through the fixing holes 3 to fix the fixed base 1 in the use position. Protective covers 5 are fixedly installed on both sides of the machine housing 6, and the grinding wheels 17 are located inside the protective covers 5. The protective covers 5 are circular.

[0023] Both protective covers 5 are fixedly mounted with cover plates 4 on their outer sides. The cover plates 4 and the protective covers 5 are fixed with screws, which facilitates the installation and removal of the cover plates 4. After the cover plates 4 are removed, the grinding wheel 17 can be disassembled and installed on the outside of the protective covers 5, which facilitates the installation and removal of the grinding wheel 17. A first sliding groove 10 is provided at the inner edge of both cover plates 4, and a second sliding groove 11 is provided at the inner edge of both protective covers 5. An opening 12 is provided on the front surface of both protective covers 5, and two arc-shaped sliding plates 7 are provided inside both protective covers 5 near the opening 12. The two sides of the arc-shaped sliding plates 7 are respectively located at the first sliding groove. Inside the groove 10 and the second slide groove 11, fan-shaped baffles 15 are fixedly installed on the outer surfaces of the four arc-shaped slide plates 7 near both sides. The cross-section of the arc-shaped slide plates 7 and the two fan-shaped baffles 15 is π-shaped. Nuts 13 are fixedly installed on the outer surfaces of the two protective covers 5 above and below the opening 12. Locking screws 14 are movably inserted into the two nuts 13 and penetrate the protective covers 5. A toggle block 16 is fixedly installed at one end of the outer surface of the four arc-shaped slide plates 7 inside the opening 12. The arc-shaped slide plates 7 are moved by the two toggle blocks 16, which also limit the arc-shaped slide plates 7.

[0024] In use, the rotating motor 18 is turned on by the control switch 8, which drives the grinding wheel 17 to rotate. The workpiece is in contact with the grinding wheel 17 at the opening 12 and is ground by the grinding wheel 17. The workpiece is located between two arc-shaped sliding plates 7. The two arc-shaped sliding plates 7 inside the protective cover 5 are slid by the first sliding groove 10 and the second sliding groove 11 to control the distance between the two arc-shaped sliding plates 7 to accommodate different workpiece sizes. After the arc-shaped sliding plates 7 are adjusted, the locking screw 14 is turned so that its end contacts the outer surface of the arc-shaped sliding plate 7. The friction between the locking screw 14 and the arc-shaped sliding plate 7 fixes the arc-shaped sliding plate 7. The fan-shaped baffles 15 on both sides of the grinding wheel 17 also play a blocking role, which can better block the flying particles and the fragments of the grinding wheel 17 after it explodes, thereby improving the safety of the grinding machine.

[0025] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A grinder with a protective device, comprising a fixed base (1), a protective cover (5), a casing (6) and a grinding wheel (17), characterized in that: Protective covers (5) are fixedly installed on both sides of the housing (6), and the grinding wheel (17) is located inside the protective cover (5). Cover plates (4) are fixedly installed on the outer sides of the two protective covers (5). A first groove (10) is provided at the inner edge of the two cover plates (4). A second groove (11) is provided on the inner wall of the two protective covers (5) near the inner edge. An opening (12) is provided on the front surface of the two protective covers (5). Two arc-shaped sliding plates (7) are provided inside the two protective covers (5) near the opening (12). The two sides of the arc-shaped sliding plates (7) are located inside the first groove (10) and the second groove (11) respectively. Fan-shaped baffles (15) are fixedly installed on the outer surfaces of the four arc-shaped sliding plates (7) near the two sides.

2. The grinder with a guard according to claim 1, wherein: A base (2) is fixedly installed on the upper surface of the fixed base (1), and a housing (6) is fixedly installed on the upper surface of the base (2). A rotating motor (18) is fixedly installed inside the housing (6). A grinding wheel (17) is fixedly installed on both output ends of the rotating motor (18). Fixing holes (3) are provided on the upper surface of the fixed base (1) near the four corners.

3. The grinder with a guard according to claim 1, wherein: Nuts (13) are fixedly installed on the outer surfaces of the two protective covers (5) at positions above and below the opening (12). Locking screws (14) are movably inserted into the two nuts (13), and the locking screws (14) penetrate the protective cover (5).

4. A grinding wheel machine with a protective device according to claim 1, characterized in that: Each of the four arc-shaped sliding plates (7) has a toggle block (16) fixedly installed at one end of its outer surface inside the opening (12).

5. A grinding wheel machine with a protective device according to claim 2, characterized in that: A control switch (8) is fixedly installed on the front surface of the base (2).

6. A grinding wheel machine with a protective device according to claim 2, characterized in that: A speed regulator (9) is fixedly installed on the front surface of the base (2).

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