Manual grinding machine

Abstract

The utility model relates to the technical field of machining, and discloses a manual grinding machine which is characterized in that a barrel is fixedly mounted at the front end of a gearbox, a mounting ring is fixedly mounted at the front end of the barrel, a cavity is formed in the gearbox, and a bevel gear II is movably mounted in the cavity. According to the alloy bar pipe polishing machine, the pneumatic chuck is inserted into the alloy bar pipe, the brush is opened to be tightly attached to the inner wall of the alloy bar pipe and is positioned, at the moment, the brush rotates around the inner wall of the alloy bar pipe, and therefore the alloy bar pipe is polished. According to the manual grinding machine, the pneumatic chuck extends into the alloy bar pipe, the brush rotates to grind the inner wall of the interior of the alloy bar pipe, the requirement for the position of an alloy bar is low, and movement is convenient and fast; only a motor is needed for transmission, so that the use cost is low; only a small amount of metal filings are generated, flying dust is inhibited through the spraying dust suppression technology, and secondary pollution is avoided.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and more specifically, to a manual grinding machine. Background Technology

[0002] In the casting industry, during the casting process of alloy bars and tubes, excessively high casting temperatures can cause the casting to melt excessively, resulting in poor fluidity and making it prone to burrs. Conversely, excessively low casting temperatures can make the casting difficult to flow and may also lead to burrs or rust. If the inner wall of the alloy bar and tube comes into contact with an electrolyte solution (such as a humid environment or aqueous solution), a galvanic cell reaction may occur, causing the metal to oxidize and produce rust. Therefore, cleaning is necessary.

[0003] The traditional method involves sandblasting, where metal bars are placed in a sandblasting chamber and their inner walls are sandblasted. During sandblasting, the bars need to be fixed and rotated to ensure uniform sandblasting of the inner walls, which further increases the complexity of the operation. After sandblasting, the sand needs to be cleaned and recycled, which also increases processing costs. The dust and waste sand generated during sandblasting may pollute the environment, and long-term exposure to dust may pose health hazards to workers. Therefore, improvements are needed. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a manual polishing machine, which has the advantage of being easy to use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a manual grinder, including a gearbox, a cylinder fixedly mounted at the front end of the gearbox, an mounting ring fixedly mounted at the front end of the cylinder, a cavity opened inside the gearbox, a bevel gear II movably mounted inside the cavity, a hollow drive shaft fixedly mounted inside the bevel gear II, an air pipe movably mounted inside the hollow drive shaft, a pneumatic chuck fixedly mounted at the front end of the hollow drive shaft, a mounting plate evenly movably mounted on the surface of the pneumatic chuck, a mounting block fixedly mounted on the outer side of the mounting plate, a brush fixedly mounted on the outer side of the mounting block, and the mounting plate and the pneumatic chuck connected by bolts.

[0006] As a preferred embodiment of this utility model, a fixing block is fixedly installed on the outer side of the mounting ring, and a circular ring plate is uniformly fixedly installed on the outer side of the cylinder. A circular hole is opened on the surface of the circular ring plate. A nozzle is fixedly installed at the front end of the fixing block, and a water pipe is fixedly installed at the rear end of the nozzle. The water pipe corresponds to the circular hole.

[0007] As a preferred embodiment of this utility model, a rotating shaft is rotatably mounted on the front side of the gearbox, and a bevel gear one located inside the cavity is fixedly mounted on the front end of the rotating shaft, and the bevel gear one meshes with the bevel gear two.

[0008] As a preferred embodiment of this utility model, a pneumatic chuck is movably mounted on the right side of the gearbox, and the pneumatic chuck corresponds to the air pipe.

[0009] As a preferred embodiment of this utility model, the nozzle is located inside the brush, and the surface of the nozzle is uniformly provided with nozzles.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model involves inserting a pneumatic chuck into the interior of an alloy rod tube, causing a brush to open and adhere tightly to the inner wall of the tube, where it is positioned. The brush then rotates around the inner wall, thus polishing the alloy rod tube. Compared to traditional polishing machines, this manual polishing machine, by extending a pneumatic chuck into the alloy rod tube and using a rotating brush to polish the inner wall, has lower requirements for the position of the alloy rod and is easy to move. It only requires a motor for transmission, resulting in lower operating costs. It produces only a small amount of metal shavings, and dust suppression technology is used to control dust generation, preventing secondary pollution.

[0012] 2. This utility model uses a gearbox misalignment transmission, which allows the air pipe to pass through the hollow drive shaft to provide tension to the pneumatic chuck while the mechanical power is being transmitted normally; the use of the pneumatic chuck allows the brush to enter and exit without resistance, and opens to provide pressure during operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic cross-sectional view of the present invention;

[0015] Figure 3 for Figure 2 A magnified schematic diagram of the local structure at point A;

[0016] Figure 4 This is a schematic diagram of the pneumatic chuck of this utility model;

[0017] Figure 5 This is a schematic diagram of the annular plate of this utility model.

[0018] In the diagram: 1. Gearbox; 2. Cylinder; 3. Mounting ring; 4. Shaft; 5. Bevel gear one; 6. Bevel gear two; 7. Nozzle; 8. Hollow drive shaft; 9. Air pipe; 10. Cavity; 11. Pneumatic chuck; 12. Circular ring plate; 13. Fixing block; 14. Water pipe; 15. Spray head; 16. Circular hole; 17. Mounting plate; 18. Mounting block; 19. Brush; 20. Bolt. Detailed Implementation

[0019] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 5 As shown, this utility model provides a manual grinder, including a gearbox 1, a cylinder 2 fixedly mounted at the front end of the gearbox 1, an mounting ring 3 fixedly mounted at the front end of the cylinder 2, a cavity 10 opened inside the gearbox 1, a bevel gear 6 movably mounted inside the cavity 10, a hollow drive shaft 8 fixedly mounted inside the bevel gear 6, an air pipe 9 movably mounted inside the hollow drive shaft 8, a pneumatic chuck 11 fixedly mounted at the front end of the hollow drive shaft 8, a mounting plate 17 movably mounted evenly on the surface of the pneumatic chuck 11, a mounting block 18 fixedly mounted on the outer side of the mounting plate 17, a brush 19 fixedly mounted on the outer side of the mounting block 18, and the mounting plate 17 and the pneumatic chuck 11 connected by bolts 20.

[0021] In use, the worker holds the device and inserts the pneumatic chuck 11 into the interior of the alloy bar tube. Then, the rotating shaft 4 is connected to the motor, which drives the bevel gear 5 to rotate. The bevel gear 5 drives the bevel gear 6 to rotate, which in turn drives the hollow transmission shaft 8 to rotate. The hollow transmission shaft 8 drives the pneumatic chuck 11 to rotate. Through the air pipe 9, the pneumatic chuck 11 extends the mounting block 18, causing the brush 19 to open and fit tightly against the inner wall of the alloy bar tube and be positioned. At this time, the brush 19 rotates around the inner wall of the alloy bar tube, thereby polishing the alloy bar tube.

[0022] By inserting the pneumatic chuck 11 into the interior of the alloy bar tube, the brush 19 opens and adheres tightly to the inner wall of the alloy bar tube and is positioned. At this time, the brush 19 rotates around the inner wall of the alloy bar tube, thereby polishing the alloy bar tube. Compared with traditional polishing machines, this manual polishing machine, by extending the pneumatic chuck 11 into the interior of the alloy bar tube and using the rotating brush 19 to polish the inner wall of the alloy bar tube, has lower requirements for the position of the alloy bar and is easy to move; it only requires a motor for transmission, resulting in lower operating costs; it only produces a small amount of metal shavings, and dust suppression technology is used to suppress dust, resulting in no secondary pollution.

[0023] Among them, a fixing block 13 is fixedly installed on the outer side of the mounting ring 3, and a circular ring plate 12 is evenly fixedly installed on the outer side of the cylinder 2. A circular hole 16 is opened on the surface of the circular ring plate 12. A nozzle 15 is fixedly installed at the front end of the fixing block 13, and a water pipe 14 is fixedly installed at the rear end of the nozzle 15. The water pipe 14 corresponds to the circular hole 16.

[0024] The water pipe 14 is connected to the nozzle 15 by passing through the round hole 16 and the fixing block 13 in sequence. While the inner wall of the alloy rod tube is being polished by the brush 19, water is sent into the nozzle 15 through the water pipe 14. The water is then sprayed out as a water mist through the nozzle 7, thereby suppressing the dust generated during polishing and reducing secondary pollution.

[0025] By using the misaligned transmission of the gearbox 1, the equipment can allow the air pipe 9 to pass through the hollow transmission shaft 8 to provide tension to the pneumatic chuck 11 under normal mechanical power transmission; using the pneumatic chuck 11, the brush 19 can move in and out without resistance, and open to provide pressure during operation.

[0026] Among them, a rotating shaft 4 is rotatably mounted on the front side of the gearbox 1, and a bevel gear 5 located inside the cavity 10 is fixedly mounted on the front end of the rotating shaft 4. The bevel gear 5 meshes with the bevel gear 6.

[0027] Connect the rotating shaft 4 to the motor, so that the motor drives the rotating shaft 4 to rotate. The rotating shaft 4 drives the bevel gear 5 to rotate, which in turn drives the bevel gear 6 to rotate, thereby driving the hollow transmission shaft 8 to rotate. The hollow transmission shaft 8 drives the pneumatic chuck 11 to rotate.

[0028] Among them, a pneumatic chuck 11 is movably installed on the right side of the gearbox 1, and the pneumatic chuck 11 corresponds to the air pipe 9.

[0029] The pneumatic chuck 11 is connected to the air tube 9, which allows the air tube 9 to rotate 360 ​​degrees, making it easy to use.

[0030] The nozzle 15 is located inside the brush 19, and the surface of the nozzle 15 is evenly provided with nozzles 7.

[0031] By placing the nozzle 15 inside the brush 19, the brush 19 polishes the inner wall, and the nozzle 15 sprays water mist through the nozzle 7 to suppress the generated dust.

[0032] Working principle and usage process of this utility model:

[0033] In use, the worker holds the device and inserts the pneumatic chuck 11 into the interior of the alloy bar tube. Then, the rotating shaft 4 is connected to the motor, which drives the bevel gear 5 to rotate. The bevel gear 5 drives the bevel gear 6 to rotate, which in turn drives the hollow transmission shaft 8 to rotate. The hollow transmission shaft 8 drives the pneumatic chuck 11 to rotate. Through the air pipe 9, the pneumatic chuck 11 extends the mounting block 18, causing the brush 19 to open and fit tightly against the inner wall of the alloy bar tube and be positioned. At this time, the brush 19 rotates around the inner wall of the alloy bar tube, thereby polishing the alloy bar tube.

[0034] The water pipe 14 is connected to the nozzle 15 by passing through the round hole 16 and the fixing block 13 in sequence. While the inner wall of the alloy rod tube is being polished by the brush 19, water is sent into the nozzle 15 through the water pipe 14. The water is then sprayed out as a water mist through the nozzle 7, thereby suppressing the dust generated during polishing and reducing secondary pollution.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A manual grinding machine, including a gearbox (1), characterized in that: A cylinder (2) is fixedly installed at the front end of the gearbox (1), and an installation ring (3) is fixedly installed at the front end of the cylinder (2). A cavity (10) is opened inside the gearbox (1). A bevel gear (6) is movably installed inside the cavity (10). A hollow drive shaft (8) is fixedly installed inside the bevel gear (6). An air pipe (9) is movably installed inside the hollow drive shaft (8). A pneumatic chuck (11) is fixedly installed at the front end of the hollow drive shaft (8). An installation plate (17) is evenly and movably installed on the surface of the pneumatic chuck (11). An installation block (18) is fixedly installed on the outside of the installation plate (17). A brush (19) is fixedly installed on the outside of the installation block (18). The installation plate (17) and the pneumatic chuck (11) are connected by bolts (20).

2. The manual polishing machine according to claim 1, characterized in that: A fixing block (13) is fixedly installed on the outer side of the mounting ring (3), and a circular ring plate (12) is evenly fixedly installed on the outer side of the cylinder (2). A circular hole (16) is opened on the surface of the circular ring plate (12). A nozzle (15) is fixedly installed at the front end of the fixing block (13), and a water pipe (14) is fixedly installed at the rear end of the nozzle (15). The water pipe (14) corresponds to the circular hole (16).

3. The manual polishing machine according to claim 1, characterized in that: The gearbox (1) is rotatably mounted on the front side of a rotating shaft (4), and a bevel gear one (5) located inside a cavity (10) is fixedly mounted on the front end of the rotating shaft (4). The bevel gear one (5) meshes with bevel gear two (6).

4. The manual polishing machine according to claim 1, characterized in that: A pneumatic chuck (11) is movably mounted on the right side of the gearbox (1), and the pneumatic chuck (11) corresponds to the air pipe (9).

5. The manual polishing machine according to claim 2, characterized in that: The nozzle (15) is located inside the brush (19), and the surface of the nozzle (15) is uniformly provided with nozzles (7).

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