Cutting-angle-adjustable angle grinder for sheet metal machining

Abstract

The utility model belongs to the technical field of angle grinder cutting angle adjustment, and particularly relates to a sheet metal working angle grinder with an adjustable cutting angle. The polishing mechanism is used for polishing the metal plate; the polishing mechanism comprises a second connecting block, the second connecting block is fixedly mounted on the inner wall of the mounting pipe, one end of the second connecting block is rotationally connected with a first motor, an output shaft of the first motor is fixedly connected with a polishing wheel, and the output shaft of the first motor is rotationally connected with an electric telescopic rod. An electric telescopic rod extends, the electric telescopic rod rotates relative to a rotating block and a third connecting block, a first motor and a second connecting block also rotate relative to each other, the first motor drives a grinding wheel to change the position along with extension of the electric telescopic rod, and then the angle of the grinding wheel is adjusted; the screws are firstly taken out from the grinding wheel and the inner ring of the fastening ring, and then the grinding wheel can be taken down and replaced with a new grinding wheel.

Description

Technical Field

[0001] This utility model belongs to the field of angle grinder technology, specifically an angle grinder for sheet metal processing with adjustable cutting angle. Background Technology

[0002] Sheet metal processing is an important part of the manufacturing industry, widely used in many fields such as automobiles, aerospace, electronic equipment, and machinery manufacturing. As various industries continue to increase their requirements for product precision, complexity, and production efficiency, sheet metal processing technology is also constantly evolving and optimizing. In the sheet metal processing process, cutting is a key process, and its quality directly affects the subsequent forming, assembly, and overall performance of sheet metal parts.

[0003] A search revealed that patent document CN108326693A discloses an angle grinder for sheet metal processing, which includes a handle. An adjusting ring is movably mounted on the outer surface of the front end of the handle, and a protective plate is provided on the outer surface of the front end of the adjusting ring. A rotator is fixedly mounted on the outer surface of the front end of the protective plate. The present invention discloses an angle grinder for sheet metal processing, which is equipped with a limiting plate, a dust suction pipe, a first pressure gauge, and a second pressure gauge. This allows for better fixation and dust prevention of the processed object. By adjusting the height of the limiting plate, it can be made to fit snugly against the sheet metal surface, resulting in a smoother cut. It also confines the debris generated during cutting to a certain range, preventing debris from flying around and affecting the user's health. Furthermore, it can absorb and collect the debris, allowing for its recycling and reuse, and preventing debris from affecting the use of the machine. It also provides better protection for the user by cutting off the power when there is no pressure on the handle, further protecting the user and offering better prospects for use. Since angle grinders often require adjusting the cutting angle during sheet metal cutting, this sheet metal processing angle grinder is difficult to adjust the cutting angle.

[0004] Therefore, an angle grinder for sheet metal processing with adjustable cutting angle is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and solve existing problems, an angle grinder for sheet metal processing with adjustable cutting angle is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is: an angle grinder for sheet metal processing with adjustable cutting angle, including a mounting tube;

[0007] It also includes a grinding mechanism for sheet metal grinding;

[0008] The grinding mechanism includes a second connecting block, which is fixedly installed on the inner wall of the mounting tube. A first motor is rotatably connected to one end of the second connecting block. A grinding wheel is fixedly connected to the output shaft of the first motor. An electric telescopic rod is rotatably connected to the output shaft of the first motor. One end of the electric telescopic rod is rotatably installed on the inner wall of the mounting tube.

[0009] Preferably, a cover plate is fixedly installed at one end of the installation pipe, a first groove is provided on one side of the cover plate, an air outlet is fixedly installed at the other end of the installation pipe, a dust collection groove is provided on the inner wall of the installation pipe, a collection bag is fixedly connected to the outer surface of the installation pipe, and a protective plate is fixedly installed on the outer surface of the installation pipe.

[0010] Preferably, a first connecting block and a third connecting block are fixedly installed on the inner wall of the mounting tube, the second connecting block is rotatably installed at one end of the first connecting block, and the electric telescopic rod is rotatably installed at one end of the third connecting block.

[0011] Preferably, the output shaft of the first motor is fixedly connected to a connecting plate, a rotating block is rotatably mounted on the outer surface of the connecting plate, and the electric telescopic rod is rotatably mounted on one side of the rotating block.

[0012] Preferably, a connecting post is fixedly connected to one end of the connecting plate, and a fastening ring is fixedly installed on one side of the connecting post. A screw is threaded into the inner cavity of the fastening ring, and the screw passes through the grinding wheel.

[0013] Preferably, a vent plate is fixedly installed on the inner wall of the installation pipe, a second motor is fixedly installed on one side of the vent plate, the output shaft of the second motor passes through the vent plate and is fixedly connected to a connecting shaft, a fan blade is fixedly connected to one end of the connecting shaft, a first cleaning plate is fixedly connected to the outer surface of the connecting shaft, a third groove is provided on one side of the first cleaning plate, and a second cleaning plate is rotatably installed on the inner surface of the third groove.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model provides an angle grinder for sheet metal processing with adjustable cutting angle. The electric telescopic rod extends and rotates relative to the rotating block and the third connecting block. During this process, the first motor and the second connecting block also rotate relative to each other. As the electric telescopic rod extends, the first motor drives the grinding wheel to change position, thereby realizing the adjustment of the grinding wheel angle. When the grinding wheel needs to be replaced, the screw is first removed from the grinding wheel and the inner ring of the fastening ring, and then the grinding wheel can be removed and replaced with a new grinding wheel.

[0016] 2. This utility model provides an angle grinder for sheet metal processing with adjustable cutting angle. The output shaft of the second motor drives the connecting shaft to rotate, and the connecting shaft further drives the fan blades and the first cleaning plate to rotate. The fan blades can suck waste and harmful gases into the inner cavity of the mounting tube. Then, the ventilation plate intercepts the waste and harmful gases are discharged through the air outlet. The waste on the surface of the ventilation plate accumulates at the edge of the first cleaning plate as the first cleaning plate rotates. When the first cleaning plate passes through the dust collection trough, the second cleaning plate will rotate and slide the waste into the collection bag, thereby realizing the collection of waste. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the mounting tube of this utility model;

[0020] Figure 3 This is a schematic diagram of the grinding wheel drive structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the grinding wheel installation structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the fan blade drive structure of this utility model.

[0023] Legend: 1. Mounting pipe; 11. Cover plate; 111. First groove; 12. Ash trough; 13. Collection bag; 14. Air outlet; 2. First connecting block; 21. Second connecting block; 22. Third connecting block; 23. Electric telescopic rod; 24. Protective plate; 3. First motor; 31. Connecting plate; 311. Connecting column; 3111. Fastening ring; 32. Rotating block; 33. Grinding wheel; 34. Screw; 4. Ventilation plate; 41. Second motor; 42. Connecting shaft; 421. Fan blade; 43. First cleaning plate; 431. Third groove; 44. Second cleaning plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] Please see Figures 1-5 This utility model provides an angle grinder for sheet metal processing with adjustable cutting angle, including a mounting tube 1; and a grinding mechanism for sheet metal grinding; the grinding mechanism includes a second connecting block 21, which is fixedly installed on the inner wall of the mounting tube 1, and a first motor 3 is rotatably connected to one end of the second connecting block 21. A grinding wheel 33 is fixedly connected to the output shaft of the first motor 3, and an electric telescopic rod 23 is rotatably connected to the output shaft of the first motor 3. One end of the electric telescopic rod 23 is rotatably installed on the inner wall of the mounting tube 1.

[0027] In sheet metal processing, there are situations where it is necessary to adjust the cutting angle, but existing grinding machines are difficult to adjust the cutting angle.

[0028] When using this utility model, the grinding wheel 33 is first fixed to the output end of the first motor 3. When the cutting angle needs to be adjusted, the electric telescopic rod 23 is extended or shortened according to actual needs. During this process, the second connecting block 21 and the first motor 3 will rotate relative to each other. After the grinding wheel 33 is adjusted to a suitable angle, the electric telescopic rod 23 is fixed. At this time, the grinding wheel 33 can be driven to rotate through the output shaft of the first motor 3 to perform sheet metal processing.

[0029] Furthermore, such as Figure 2 As shown, a cover plate 11 is fixedly installed at one end of the installation pipe 1, a first groove 111 is provided on one side of the cover plate 11, an air outlet 14 is fixedly installed at the other end of the installation pipe 1, a dust collection groove 12 is provided on the inner wall of the installation pipe 1, a collection bag 13 is fixedly connected to the outer surface of the installation pipe 1, and a protective plate 24 is fixedly installed on the outer surface of the installation pipe 1.

[0030] The inner wall of the mounting pipe 1 is fixedly installed with a first connecting block 2 and a third connecting block 22. The second connecting block 21 is rotatably installed at one end of the first connecting block 2, and the electric telescopic rod 23 is rotatably installed at one end of the third connecting block 22.

[0031] In use, the angle of the grinding wheel 33 needs to be adjusted. When adjusting the angle of the grinding wheel 33, the first motor 3 will also rotate. To avoid obstructing movement, the first motor 3 can pass through the inner surface of the first groove 111. When adjusting the angle of the grinding wheel 33, the first connecting block 2 and the second connecting block 21 will rotate relative to each other. At the same time, the third connecting block 22 and the electric telescopic rod 23 will also rotate relative to each other. During cutting, in order to prevent the high-speed rotating grinding wheel 33 from accidentally injuring the workers, the grinding wheel 33 is partially wrapped by the protective plate 24, which can protect the workers.

[0032] Furthermore, such as Figure 3 As shown, the output shaft of the first motor 3 is fixedly connected to a connecting plate 31, and a rotating block 32 is rotatably mounted on the outer surface of the connecting plate 31. The electric telescopic rod 23 is rotatably mounted on one side of the rotating block 32.

[0033] When this utility model is in use, when the output shaft of the first motor 3 drives the grinding wheel 33 to rotate, the connecting plate 31 will also rotate. At the same time, the connecting plate 31 rotates in the inner ring of the rotating block 32. This can avoid affecting the cutting work after the angle of the grinding wheel 33 is adjusted.

[0034] Furthermore, such as Figure 4 As shown, a connecting post 311 is fixedly connected to one end of the connecting plate 31, and a fastening ring 3111 is fixedly installed on one side of the connecting post 311. A screw 34 is threaded into the inner cavity of the fastening ring 3111, and the screw 34 passes through the grinding wheel 33.

[0035] When using this utility model, since the grinding wheel 33 is a consumable, the replacement of the grinding wheel 33 needs to be considered. When the grinding wheel 33 needs to be replaced, first remove the screw 34 from the inner ring of the fastening ring 3111. At this time, the grinding wheel 33 can be removed. Then, pass the screw 34 through the new grinding wheel 33 and rotate it to the inner surface of the fastening ring 3111 to complete the fixing of the grinding wheel 33. The fastening ring 3111 keeps a certain distance between the grinding wheel 33 and the connecting post 311, which is conducive to cooling and heat dissipation of the grinding wheel 33 during operation.

[0036] Furthermore, such as Figure 5 As shown, a vent plate 4 is fixedly installed on the inner wall of the mounting pipe 1. A second motor 41 is fixedly installed on one side of the vent plate 4. The output shaft of the second motor 41 passes through the vent plate 4 and is fixedly connected to a connecting shaft 42. A fan blade 421 is fixedly connected to one end of the connecting shaft 42. A first cleaning plate 43 is fixedly connected to the outer surface of the connecting shaft 42. A third groove 431 is provided on one side of the first cleaning plate 43. A second cleaning plate 44 is rotatably installed on the inner surface of the third groove 431.

[0037] When this utility model is in use, a large amount of waste and harmful gases are generated during the cutting process. Therefore, the waste needs to be collected and treated, and the harmful gases need to be discharged to a location away from the workers. During use, the output shaft of the second motor 41 drives the connecting shaft 42 to rotate. The connecting shaft 42 simultaneously drives the fan blade 421 and the first cleaning plate 43 to rotate. When the first cleaning plate 43 rotates, it can draw the gas from one end of the cover plate 11 to the air outlet 14 and discharge it. During this process, the flowing gas will be mixed with the waste generated by cutting. The waste will be blocked on one side of the ventilation plate 4 during the flow. As the first cleaning plate 43 rotates on the surface of the ventilation plate 4, it can scrape off the waste. During this process, the second cleaning plate 44 will rotate on the inner surface of the third groove 431. When the second cleaning plate 44 rotates to the position of the ash trough 12, the second cleaning plate 44 will rotate into the inner cavity of the ash trough 12. At this time, the waste at the edge of the second cleaning plate 44 and the first cleaning plate 43 will fall into the ash trough 12 due to inertia and finally fall into the collection bag 13.

[0038] Working principle: When this utility model is in use, when it is necessary to adjust the cutting angle, the electric telescopic rod 23 is first extended to generate relative rotation with the rotating block 32 and the third connecting block 22 respectively. During this process, the first motor 3 and the second connecting block 21 also generate relative rotation. As the electric telescopic rod 23 is extended, the first motor 3 drives the grinding wheel 33 to change position, thereby realizing the adjustment of the angle of the grinding wheel 33. When it is necessary to replace the grinding wheel 33, the screw 34 is first removed from the inner ring of the grinding wheel 33 and the fastening ring 3111. Then the grinding wheel 33 can be removed and replaced with a new grinding wheel 33.

[0039] During cutting operations, a large amount of waste and harmful gases are generated. Therefore, it is necessary to collect the waste and discharge the harmful gases to a location away from the workers. During cutting, the output shaft of the second motor 41 drives the connecting shaft 42 to rotate. The connecting shaft 42 further drives the fan blade 421 and the first cleaning plate 43 to rotate. The fan blade 421 can suck the waste and harmful gases into the inner cavity of the installation pipe 1. Then, the ventilation plate 4 blocks the waste, and the harmful gases are discharged through the air outlet 14. The waste on the surface of the ventilation plate 4 accumulates at the edge of the first cleaning plate 43 as the first cleaning plate 43 rotates. When the first cleaning plate 43 passes the dust collection trough 12, the second cleaning plate 44 will rotate and slide the waste into the collection bag 13, thereby realizing the collection of waste.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An angle grinder for sheet metal processing with adjustable cutting angle, comprising a mounting tube (1); It also includes a grinding mechanism for sheet metal grinding; Its features are: The grinding mechanism includes a second connecting block (21), which is fixedly installed on the inner wall of the mounting tube (1). One end of the second connecting block (21) is rotatably connected to a first motor (3). The output shaft of the first motor (3) is fixedly connected to a grinding wheel (33). The output shaft of the first motor (3) is rotatably connected to an electric telescopic rod (23), one end of which is rotatably installed on the inner wall of the mounting tube (1).

2. The adjustable cutting angle angle grinder for sheet metal processing according to claim 1, characterized in that: One end of the installation tube (1) is fixedly installed with a cover plate (11), and a first groove (111) is provided on one side of the cover plate (11). An air outlet (14) is fixedly installed at the other end of the installation tube (1). A dust collection groove (12) is provided on the inner wall of the installation tube (1). A collection bag (13) is fixedly connected to the outer surface of the installation tube (1). A protective plate (24) is fixedly installed on the outer surface of the installation tube (1).

3. The adjustable cutting angle angle grinder for sheet metal processing according to claim 2, characterized in that: The inner wall of the mounting tube (1) is fixedly installed with a first connecting block (2) and a third connecting block (22). The second connecting block (21) is rotatably installed at one end of the first connecting block (2), and the electric telescopic rod (23) is rotatably installed at one end of the third connecting block (22).

4. The adjustable cutting angle angle grinder for sheet metal processing according to claim 3, characterized in that: The output shaft of the first motor (3) is fixedly connected to a connecting plate (31), and a rotating block (32) is rotatably mounted on the outer surface of the connecting plate (31). The electric telescopic rod (23) is rotatably mounted on one side of the rotating block (32).

5. The adjustable cutting angle angle grinder for sheet metal processing according to claim 4, characterized in that: One end of the connecting plate (31) is fixedly connected to a connecting post (311), and a fastening ring (3111) is fixedly installed on one side of the connecting post (311). A screw (34) is threaded into the inner cavity of the fastening ring (3111), and the screw (34) passes through the grinding wheel (33).

6. The adjustable cutting angle angle grinder for sheet metal processing according to claim 5, characterized in that: A ventilation plate (4) is fixedly installed on the inner wall of the installation pipe (1). A second motor (41) is fixedly installed on one side of the ventilation plate (4). The output shaft of the second motor (41) passes through the ventilation plate (4) and is fixedly connected to a connecting shaft (42). A fan blade (421) is fixedly connected to one end of the connecting shaft (42). A first cleaning plate (43) is fixedly connected to the outer surface of the connecting shaft (42). A third groove (431) is opened on one side of the first cleaning plate (43). A second cleaning plate (44) is rotatably installed on the inner surface of the third groove (431).

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