Polishing device

Abstract

The utility model provides a polishing device, which relates to the technical field of polishing equipment and comprises a polishing equipment body, and a transmission shaft is arranged at the output end of the polishing equipment body. When the polishing device is used, the index finger and the thumb oppositely press the two push plates, then the limiting piece is lifted upwards to be separated from the transmission shaft, then the polishing wheel is lifted upwards, the polishing wheel slides on the outer surfaces of the three limiting columns and the transmission shaft through the limiting holes and the positioning holes, and after the polishing wheel is taken down and a new polishing wheel is placed in, the limiting piece is reset. A spring pushes two push plates to enable two L-shaped sliding rods to slide in a limiting piece, two clamping columns are driven to be clamped with two clamping grooves, when the transmission shaft rotates, the three limiting columns prevent the polishing wheel from shaking or rotate on the outer surface of the transmission shaft, kinetic energy transmission is guaranteed, and when the polishing wheel is replaced, the polishing wheel can be replaced conveniently. And the polishing wheel can be taken down, replaced and mounted without using a professional tool, so that the dismounting and mounting efficiency is improved, and the use experience is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding equipment, in particular to a grinding device. Background Art

[0002] The grinding device is also called a polishing equipment. Generally, a polishing wheel is used to polish the surface of a workpiece. The polishing wheel is a commonly used component in the polishing equipment and is used to grind and polish the surface of the workpiece during the polishing process. It is usually made of materials with a certain hardness and wear resistance, such as cloth, felt, rubber or synthetic materials, etc. According to different polishing requirements, different types of polishing wheels can be selected, including felt polishing wheels, flannel polishing wheels, abrasive polishing wheels, etc.

[0003] However, in the prior art, the polishing wheel and the grinding device are fixedly connected by bolts. When the polishing wheel needs to be replaced, a matching professional tool is required to disassemble the bolts one by one. After replacing the polishing wheel, the bolts need to be tightened one by one, which is cumbersome to operate and has defects. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the technical problem that in the prior art, the polishing wheel and the grinding device are fixedly connected by bolts. When the polishing wheel needs to be replaced, a matching professional tool is required to disassemble the bolts one by one. After replacing the polishing wheel, the bolts need to be tightened one by one, which is cumbersome to operate and has defects, and to propose a grinding device.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a grinding device, including a grinding equipment main body, a transmission shaft is arranged at the output end of the grinding equipment main body, a limiting plate is sleeved on the outer surface of the transmission shaft, three limiting columns are fixedly connected to the upper surface of the limiting plate, a polishing wheel is arranged on the upper surface of the limiting plate, a positioning hole is opened on the inner wall surface of the polishing wheel, and three limiting holes are also opened on the inner wall surface of the polishing wheel. The outer surfaces of the three limiting columns are embedded in the three limiting holes, the outer surface of the transmission shaft is embedded in the positioning hole, two clamping grooves are opened on the outer surface of the transmission shaft near one end, a limiting member is sleeved at one end of the transmission shaft, and two L-shaped sliding rods are slidably embedded on the outer surface of the limiting member, and a clamping column is fixedly connected to one side surface of each of the two L-shaped sliding rods.

[0006] Further, one end of each of the two clamping columns penetrates through the inner wall surface of the limiting member, and one end of each of the two clamping columns is matched with the inner wall surface of the two clamping grooves.

[0007] Further, one end of each of the two L-shaped sliding rods is fixedly connected with a push plate, and a spring is fixedly connected between the opposite surfaces of the two push plates.

[0008] Further, a connecting ring is fixedly connected to the lower surface of the limiting member, and the connecting ring is sleeved on the outer surface of the transmission shaft.

[0009] Further, the two card slots are in the shape of right-angled triangles.

[0010] Further, the three positioning holes are arranged in a circular pattern.

[0011] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0012] 1. In the present utility model, when in use, the index finger and thumb press the two push plates towards each other, then lift the limiting member upwards to disengage the limiting member from the transmission shaft, and then lift the polishing wheel upwards. The polishing wheel slides on the outer surfaces of the three limiting posts and the transmission shaft through the limiting holes and positioning holes, and the polishing wheel is removed. After putting in a new polishing wheel, the limiting member is reset, and the spring pushes the two push plates to make the two L-shaped sliding rods slide inside the limiting member, driving the two clamping posts to engage with the two card slots. When the three limiting posts rotate with the transmission shaft, it prevents the polishing wheel from shaking or rotating on the outer surface of the transmission shaft, ensuring kinetic energy transmission. When replacing the polishing wheel, the polishing wheel can be removed, replaced, and installed without using professional tools, improving the efficiency of disassembly and installation and ensuring the use experience.

[0013] 2. In the present utility model, the lower surface of the connecting ring fits with the surfaces of the three limiting posts and the polishing wheel, increasing the force-bearing area of the polishing wheel and improving the structural stability. The two card slots are in the shape of right-angled triangles, which play a guiding role for the triangular end of the clamping post during installation. The three positioning holes are arranged at equal distances, and there is no need to rotate too much when installing the polishing wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of a grinding device provided by the present utility model;

[0015] Figure 2 is a three-dimensional sectional structural schematic diagram of the polishing wheel of a grinding device provided by the present utility model;

[0016] Figure 3 is a three-dimensional structural schematic diagram of the polishing wheel of a grinding device provided by the present utility model;

[0017] Figure 4 is a three-dimensional structural schematic diagram of the limiting plate of a grinding device provided by the present utility model;

[0018] Figure 5 is a three-dimensional sectional structural schematic diagram of the limiting member of a grinding device provided by the present utility model.

[0019] Legend: 1. Main body of grinding equipment; 2. Transmission shaft; 3. Polishing wheel; 4. Limiting plate; 5. Limiting column; 6. Connecting ring; 7. L-shaped sliding rod; 8. Clamping post; 9. Pushing plate; 10. Spring; 11. Card slot; 12. Positioning hole; 13. Limiting hole; 14. Limiting piece. Detailed implementation mode

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1

[0022] As Figures 1-4 shown, the present invention provides a technical solution: a grinding device, including a main body 1 of grinding equipment, a transmission shaft 2 is arranged at the output end of the main body 1 of grinding equipment, a limiting plate 4 is sleeved on the outer surface of the transmission shaft 2, three limiting columns 5 are fixedly connected to the upper surface of the limiting plate 4, a polishing wheel 3 is arranged on the upper surface of the limiting plate 4, a positioning hole 12 is opened on the inner wall surface of the polishing wheel 3, three limiting holes 13 are also opened on the inner wall surface of the polishing wheel 3, the outer surfaces of the three limiting columns 5 are embedded in the three limiting holes 13, the outer surface of the transmission shaft 2 is embedded in the positioning hole 12, two card slots 11 are opened on the outer surface of the transmission shaft 2 near one end, a limiting piece 14 is sleeved on one end of the transmission shaft 2, two L-shaped sliding rods 7 are slidably embedded on the outer surface of the limiting piece 14, clamping posts 8 are fixedly connected to one side surface of the two L-shaped sliding rods 7, one ends of the two clamping posts 8 penetrate through the inner wall surface of the limiting piece 14, one ends of the two clamping posts 8 are matched with the inner walls of the two card slots 11, pushing plates 9 are fixedly connected to one ends of the two L-shaped sliding rods 7, and a spring 10 is fixedly connected to the opposite surfaces of the two pushing plates 9.

[0023] In this embodiment, during use, the index finger and thumb press the two push plates 9 towards each other. The two push plates 9 drive the two L-shaped sliding rods 7 to move inside the limiting member 14 and compress the spring 10. The compression stroke of the spring 10 absorbs kinetic energy. The two L-shaped sliding rods 7 drive the two clamping posts 8 to slide inside the limiting member 14, so that one end of the two clamping posts 8 disengages from the two clamping grooves 11. Then, the limiting member 14 is lifted upward to disengage the limiting member 14 from the transmission shaft 2. Then, the polishing wheel 3 is lifted upward. The polishing wheel 3 slides on the outer surfaces of the three limiting posts 5 and the transmission shaft 2 through the limiting holes 13 and the positioning holes 12. The polishing wheel 3 is removed. After a new polishing wheel 3 is placed, the limiting member 14 is reset. The spring 10 pushes the two push plates 9 to make the two L-shaped sliding rods 7 slide inside the limiting member 14, driving the two clamping posts 8 to engage with the two clamping grooves 11. When the three limiting posts 5 rotate with the transmission shaft 2, the limiting plate 4 provides a supporting force for the polishing wheel 3 to prevent the polishing wheel 3 from shaking or rotating on the outer surface of the transmission shaft 2, ensuring kinetic energy transmission. When replacing the polishing wheel 3, the polishing wheel 3 can be removed, replaced and installed without using professional tools, improving the efficiency of disassembly and installation and ensuring the use experience.

[0024] Embodiment 2

[0025] As Figures 1-4 shown, a connecting ring 6 is fixedly connected to the lower surface of the limiting member 14. The connecting ring 6 is sleeved on the outer surface of the transmission shaft 2. The two clamping grooves 11 are in the shape of right triangles, and the three positioning holes 12 are arranged in a circular pattern.

[0026] In this embodiment, the lower surface of the connecting ring 6 is attached to the surfaces of the three limiting posts 5 and the polishing wheel 3, increasing the stress area of the polishing wheel 3 and improving the structural stability. The two clamping grooves 11 are in the shape of right triangles, guiding the triangular end of the clamping post 8 during installation. The three positioning holes 12 are arranged at equal distances, and there is no need to rotate excessively when installing the polishing wheel 3.

[0027] Working principle: As Figures 1-4As shown in the figure, when in use, the index finger and thumb press the two push plates 9 towards each other. The two push plates 9 drive the two L-shaped sliding rods 7 to move inside the limiting member 14 and compress the spring 10. The compression stroke of the spring 10 absorbs kinetic energy. The two L-shaped sliding rods 7 drive the two clamping posts 8 to slide inside the limiting member 14, so that one end of the two clamping posts 8 disengages from the two clamping grooves 11. Then, the limiting member 14 is lifted upward to disengage the limiting member 14 from the transmission shaft 2. Then, the polishing wheel 3 is lifted upward. The polishing wheel 3 slides on the outer surfaces of the three limiting posts 5 and the transmission shaft 2 through the limiting holes 13 and the positioning holes 12, and the polishing wheel 3 is removed. After a new polishing wheel 3 is placed, the limiting member 14 is reset. The spring 10 pushes the two push plates 9 to make the two L-shaped sliding rods 7 slide inside the limiting member 14, driving the two clamping posts 8 to engage with the two clamping grooves 11. When the transmission shaft 2 rotates, the three limiting posts 5 provide a supporting force for the polishing wheel 3 through the limiting plate 4 to prevent the polishing wheel 3 from shaking or rotating on the outer surface of the transmission shaft 2. The lower surface of the connecting ring 6 fits with the surfaces of the three limiting posts 5 and the polishing wheel 3 to increase the force-bearing area of the polishing wheel 3. The two clamping grooves 11 are in the shape of a right triangle and play a guiding role for the triangular end of the clamping post 8 during installation. The three positioning holes 12 are arranged at equal distances, and there is no need to rotate too much when installing the polishing wheel 3.

[0028] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A grinding device, comprising a grinding device body (1), characterized in that: The output end of the grinding equipment body (1) is provided with a transmission shaft (2), the outer surface of the transmission shaft (2) is sleeved with a limit plate (4), the upper surface of the limit plate (4) is fixedly connected with three limit columns (5), the upper surface of the limit plate (4) is provided with a polishing wheel (3), the inner wall surface of the polishing wheel (3) is provided with a positioning hole (12), the inner wall surface of the polishing wheel (3) is also provided with three limit holes (13), the outer surfaces of the three limit columns (5) are embedded in the three limit holes (13), the outer surface of the transmission shaft (2) is embedded in the positioning holes (12), the outer surface of the transmission shaft (2) close to one end is provided with two card grooves (11), one end of the transmission shaft (2) is sleeved with a limit piece (14), the outer surface of the limit piece (14) is slidably embedded with two L-shaped sliding rods (7), and one side surface of the two L-shaped sliding rods (7) is fixedly connected with a card column (8).

2. A grinding device according to claim 1, characterized in that: One end of the two clamping columns (8) passes through the inner wall surface of the limiting member (14), and one end of the two clamping columns (8) matches the inner walls of the two clamping grooves (11).

3. A grinding device according to claim 2, characterized in that: One end of the two L-shaped sliding rods (7) is fixedly connected to a push plate (9), and the opposite surfaces of the two push plates (9) are fixedly connected to a spring (10).

4. A grinding device according to claim 3, characterized in that: A connecting ring (6) is fixedly connected to the lower surface of the limiting member (14), and the connecting ring (6) is sleeved on the outer surface of the transmission shaft (2).

5. A grinding device according to claim 4, characterized in that: The two card slots (11) are in the shape of right-angled triangles.

6. A grinding device according to claim 1, characterized in that: The three positioning holes (12) are arranged in a circle.

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