Grinding tool

Abstract

The application provides a grinding tool, comprising: a power source providing driving force; a transmission body, the upper end of which is connected to the power source and can move in at least one of the following directions: rotation, upward, downward, leftward, rightward, forward and backward under the driving of the power source; a fixed disc, the top of which is connected to the lower end of the transmission body, and the bottom of which is provided with a grinding part, the top of the fixed disc is provided with one or more accommodating grooves and / or limiting columns, a plurality of the accommodating grooves and / or limiting columns are arranged non-uniformly along the circumference of the transmission body, a sliding block is arranged in each of the accommodating grooves, and / or a mass disc capable of moving around the limiting column is sleeved on each of the limiting columns, and the application solves the technical problems of clear scratches and intentional lines left after the machining of a polished part in the prior art, so that the outer surface of the polished part is irregular after polishing, and the processed lines are very uniform, the degree of automation and the machining efficiency are high, and the demand of product machining quality is met.

Description

Technical Field

[0001] This invention relates to the field of precision machining technology, and more specifically, to an abrasive tool. Background Technology

[0002] Grinding is a type of surface modification technology. It generally refers to a processing method that uses a rough object to change the physical properties of a material surface through friction, with the main purpose of obtaining a specific surface roughness.

[0003] In practical applications, existing processing and polishing methods leave scratches and textures on the outer surface. The textures produced by polishing are often very regular. However, in actual product requirements, some products require an irregular outer surface after polishing and very uniform textures. When processing by hand, it is necessary to constantly change the polishing trajectory, which is labor-intensive, inefficient, and results in a very rough finish. Therefore, it is necessary to design a new polishing tool to meet the product requirements. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the purpose of this invention is to provide a grinding tool.

[0005] An abrasive tool provided according to the present invention comprises:

[0006] Power source, providing driving force;

[0007] The transmission body is connected to the power source at its upper end and is capable of rotating, moving upward, downward, moving left, moving right, moving forward, and moving backward under the drive of the power source.

[0008] A fixed disk is connected at its top to the lower end of the transmission body, and a grinding component is provided at its bottom. The top of the fixed disk has one or more receiving grooves and / or limiting posts. The multiple receiving grooves and / or limiting posts are non-uniformly arranged along the circumference of the transmission body. Each receiving groove is equipped with a slider, and / or each limiting post is fitted with a mass disk that can move around the limiting post, so that when the power source drives the transmission body to rotate, the transmission body can bend, thereby making the contact between the grinding component and the workpiece being ground irregular.

[0009] Preferably, the mass disk is provided with a first elliptical hole, the mass disk has a spindle-shaped structure, the mass disk can rotate by relying on the cooperation of the first elliptical hole and the limiting post, and the position of the slider fixed in the receiving groove can be adjusted.

[0010] Preferably, it further includes a magnetic field generator, and the slider is a magnetic medium; the slider is capable of sliding in the receiving groove;

[0011] The magnetic field generator is arranged circumferentially along the transmission body and can generate a magnetic field under the excitation of an electrical signal, so that the magnetic field can generate an attractive or repulsive force with the slider, thereby affecting the movement state of the slider in the receiving groove.

[0012] Preferably, the magnetic field generator is an electromagnetic coil, which does not rotate with the transmission body, and the slider is a permanent magnet or a ferromagnet.

[0013] Preferably, a spring is provided at the end of the slider away from the center of the fixed disk. When the fixed disk rotates, the slider elastically engages with the spring in the receiving groove under the drive of centrifugal force.

[0014] Preferably, it also includes a protective cover with an opening at the lower end face, and the fixed disk and the magnetic field generator are both arranged inside the protective cover.

[0015] Preferably, the transmission element is made of steel wire or a bundle of steel wire.

[0016] Preferably, the grinding component includes a fixed base and a plurality of grinding units fixed to the lower part of the fixed base, wherein the grinding unit includes a grinding body and abrasive grains attached to the grinding body.

[0017] Preferably, the polishing unit is annular, linear, or curved.

[0018] Preferably, the assembly further includes a connecting rod. The grinding component has a second elliptical hole. The inner end of the connecting rod is fixed to the fixed plate. The outer end of the connecting rod is vertically arranged with a connecting shaft. The connecting shaft passes through the second elliptical hole and is movably engaged with the grinding component. When the fixed plate rotates, it can drive the connecting shaft to rotate around the axis of the fixed plate, thereby causing the grinding component to move by means of the engagement between the second elliptical hole and the connecting shaft. The diameter of the smallest circle in the second elliptical hole is greater than or equal to the outer diameter of the connecting shaft.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This invention employs a flexible transmission body in conjunction with a fixed disk, and sets up a non-uniformly arranged mass structure on the fixed disk. This allows the transmission body to bend when the fixed disk rotates, resulting in irregular contact between the grinding component and the workpiece being ground. Consequently, the outer surface of the workpiece after grinding is irregular, and the processed texture is very uniform. This invention achieves a high degree of automation and processing efficiency, solving the technical problem of leaving clear scratches and / or intentional textures after grinding in existing technologies, and meeting the requirements for product processing quality. Attached Figure Description

[0021] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of Example 1;

[0023] Figure 2 This is a schematic diagram of the grinding unit in one embodiment;

[0024] Figure 3 This is a schematic diagram of the grinding unit in another embodiment;

[0025] Figure 4 This is a schematic diagram of the grinding unit in another embodiment;

[0026] Figure 5 This is a schematic diagram of the structure of the grinding component in one embodiment;

[0027] Figure 6 This is a schematic diagram of the grinding component in another embodiment;

[0028] Figure 7 This is a schematic diagram of the grinding component in another embodiment;

[0029] Figure 8 This is a top view of the fixed disk structure in Example 3;

[0030] Figure 9 This is a schematic diagram of the structure in Example 5;

[0031] Figure 10 This is a structural schematic diagram of a slider fixing method in Embodiment 1;

[0032] Figure 11 This is a schematic diagram of the structure in Example 6.

[0033] The diagram shows:

[0034] Power Source 1

[0035] Transmission body 2

[0036] Fixed disk 3

[0037] Receiving tank 31

[0038] Slider 32

[0039] Connecting rod 33

[0040] Connecting shaft 34

[0041] Limiting post 35

[0042] Quality Plate 36

[0043] First elliptical hole 37

[0044] Second elliptical hole 38

[0045] Grinding component 4

[0046] Grinding unit 41

[0047] Polishing body 411

[0048] Abrasive 412

[0049] Fixture 42

[0050] Magnetic field generator 5

[0051] Bearing 51

[0052] Protective shield 6 Detailed Implementation

[0053] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0054] Example 1:

[0055] This invention provides an abrasive, such as Figure 1 As shown, the device includes a power source 1, a transmission body 2, and a fixed disk 3. The power source 1 provides driving force for the operation of the grinding tool and can provide rotation, upward, downward, leftward, rightward, forward, and backward movements. The upper end of the transmission body 2 is connected to the power source 1 and can perform at least one of the following movements under the drive of the power source 1: rotation, upward, downward, leftward, rightward, forward, and backward, so that the transmission body 2 can achieve multi-degree-of-freedom movement. The top of the fixed disk 3 is connected to the lower end of the transmission body 2, and a grinding component 4 is provided at the bottom, so that the grinding component 4 can also achieve multi-degree-of-freedom movement. The grinding component 4 is preferably detachably fixed on the fixed disk 3.

[0056] Specifically, although the transmission body 2 has a certain rigidity, it can also bend under force. It is made of a bendable material. The transmission body 2 is preferably made of steel wire or a bundle of steel wires composed of multiple strands. The fixed plate 3 has a top surface. The lower end of the transmission body 2 is preferably connected to the middle of the top surface of the fixed plate 3. The top surface is provided with one or more receiving grooves 31. In this embodiment, the top surface of the fixed plate 3 is provided with multiple non-uniformly arranged receiving grooves 31. Each receiving groove 31 is fixed with a slider 32. The multiple sliders 32 are non-uniformly arranged along the circumference of the transmission body 2. When the grinding operation is performed, the power source 1 can drive the transmission body 2 to drive the fixed plate 3 to rotate. Due to the non-uniform arrangement of the sliders 32 on the fixed plate 3 and the bendable toughness of the transmission body 2, the transmission body 2 can bend when the fixed plate 3 rotates, so that the contact between the grinding component 4 and the workpiece being ground is in an irregular state.

[0057] It should be noted that the irregular state specifically refers to the different degrees of contact or different tightness between the grinding component 4 and the workpiece at different times at the same position on the grinding surface of the workpiece. This makes the scratches or textures of the entire workpiece after grinding also in a chaotic and irregular state, making the surface after grinding more uniform and without obvious textures and scratches.

[0058] In this embodiment, the position of the slider 32 in the receiving groove 31 can be adjusted. For example, the slider 32 can be fixed in the receiving groove 31 by bolts. Figure 10 As shown, the receiving groove 31 is provided with multiple through holes. By adjusting the bolts installed on different through holes on the receiving groove 31, the position of the slider 32 can be adjusted, thereby adjusting the distance between the slider 32 and the center of the fixed disk 3, thus adjusting the mass distribution in different parts of the fixed disk 3, changing the undulation trajectory of the bottom surface during the rotation of the fixed disk 3, and realizing the adjustment of the surface scraping uniformity.

[0059] The power source 1 in this embodiment is existing technology and will not be described further here. It should be noted that... Figure 1 In This means that the transmission body 2 can rotate under the drive of the power source 1. Movement, forward and backward direction ( Movement, left and right directions ( ) movement, up and down direction ( (Motion, etc.) to achieve complex grinding motion trajectories.

[0060] To enhance the aesthetics of the equipment and improve safety protection, this embodiment also includes a protective cover 6 with an opening at the lower end. The fixing plate 3 is arranged inside the protective cover 6. In specific applications, the protective cover 6 preferably does not move with the transmission body 2. The protective cover 6 can be connected to the support structure of the power source 1.

[0061] The grinding component 4 includes a fixed base 42 and multiple grinding units 41 fixed to the lower part of the fixed base 42. Each grinding unit 41 includes a grinding body 411 and abrasive grains 412 attached to the grinding body 411. The abrasive grains 412 may be, for example, ceramic particles. The grinding units 41 can be annular, linear, or curved. Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown.

[0062] Example 2:

[0063] This embodiment is the first variation of Embodiment 1. The difference between this embodiment and Embodiment 1 is that the structure of slider 32 and receiving groove 31 is omitted in this embodiment. In this embodiment, the top surface of fixed disk 3 is provided with multiple non-uniformly arranged limiting posts 35. Each limiting post 35 is fitted with a mass disk 36. The mass disk 36 is preferably a spindle-shaped structure. The mass disk 36 can move around the limiting post 35. Specifically, the mass disk 36 is provided with a first elliptical hole 37. The mass disk 36 can rotate by relying on the cooperation between the first elliptical hole 37 and the limiting post 35. Since the diameter of the smallest circle in the first elliptical hole 37 is greater than or equal to the outer diameter of the limiting post 35, the limiting post 35 can reach any part in the first elliptical hole 37. During the rotation of fixed disk 3, the swinging and sliding of mass disk 36 on limiting post 35, coupled with the non-uniform arrangement of mass disk 36 on fixed disk 3, enable the entire mold to achieve the effect of Embodiment 1.

[0064] Example 3:

[0065] This embodiment is a second variation of Embodiment 1. The difference between this embodiment and Embodiment 1 is that the fixed disk 3 is provided with both a receiving groove 31 and a slider 32, as well as a limit post 35 and a mass disk 36. Figure 8 As shown, this makes the mass distribution of the entire fixed disk 3 at different parts and the movement of the slider 32 and mass disk 36 caused by the rotation of the fixed disk 3 more complex, changes the undulating trajectory of the bottom surface during the rotation of the fixed disk 3, and realizes the adjustment of the surface scraping uniformity.

[0066] Example 4:

[0067] This embodiment is the third variation of embodiment 1. The difference between this embodiment and embodiment 1 is that a spring is provided at the end of the slider 32 away from the center of the fixed disk 3. When the fixed disk 3 rotates, the slider 32 is driven by centrifugal force to elastically cooperate with the spring in the receiving groove 31, thereby changing the mass distribution on the fixed disk 3, and thus changing the undulation trajectory of the bottom surface during the rotation of the fixed disk 3, thereby adjusting the uniformity of surface scraping.

[0068] Example 5:

[0069] This embodiment is the fourth variation of Embodiment 1. The difference between this embodiment and Embodiment 1 is that a magnetic field generator 5 is arranged circumferentially on the transmission body 2, the slider 32 is a magnetic medium, and the magnetic field generator 5 is arranged inside the protective cover 6.

[0070] Specifically, the magnetic field generator 5 can generate a magnetic field under the excitation of an electrical signal. The magnetic field generates an attractive or repulsive force between itself and the slider 32, thereby affecting the motion state and position of the slider 32 in the receiving groove 31, thus changing the mass distribution of the slider 32 on the fixed disk 3.

[0071] The magnetic field generator 5 uses an electromagnetic coil. The electromagnetic coil does not rotate with the transmission body 2. For example, the electromagnetic coil can be connected to the housing structure of the power source 1 and rotate with the transmission body 2 through components such as bearing 51. When an electrical excitation signal is applied, alternating current can be passed in for excitation, or direct current can be used for excitation.

[0072] The slider 32 is a permanent magnet or a ferromagnet. When a permanent magnet is used, the attraction or repulsion between the magnetic field generator 5 and the permanent magnet can be achieved by changing the direction of the current. In turn, the mass distribution on the fixed disk 3 can be changed by electrical excitation, thereby adjusting the uniformity of surface scraping.

[0073] Example 6:

[0074] This embodiment is the fifth variation of Embodiment 1. The difference between this embodiment and Embodiment 1 is that it also includes a connecting rod 33, as shown below. Figure 11 As shown, the grinding component 4 is provided with a second elliptical hole 38. The inner end of the connecting rod 33 is fixed to the fixed plate 3, and the outer end of the connecting rod 33 is vertically arranged with a connecting shaft 34. The connecting shaft 34 passes through the second elliptical hole 38 and is movably engaged with the grinding component 4. When the fixed plate 3 rotates, it can drive the connecting shaft 34 to rotate around the axis of the fixed plate 3, thereby causing the grinding component 4 to move by the cooperation between the second elliptical hole 38 and the connecting shaft 34. The diameter of the smallest circle in the second elliptical hole 38 is greater than or equal to the outer diameter of the connecting shaft 34. The above structural arrangement of this embodiment can also achieve the effect of embodiment 1.

[0075] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0076] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. An abrasive tool, characterized in that, include: Power source (1) provides driving force; The transmission body (2) is connected to the power source (1) at its upper end and can perform at least one of the following movements under the drive of the power source (1): rotation, upward, downward, leftward, rightward, forward, and backward. The fixed disk (3) is connected to the lower end of the transmission body (2) at the top and has a grinding component (4) at the bottom. The top of the fixed disk (3) has one or more receiving grooves (31) and / or limiting posts (35). The multiple receiving grooves (31) and / or limiting posts (35) are non-uniformly arranged along the circumference of the transmission body (2). Each receiving groove (31) is equipped with a slider (32), and / or each limiting post (35) is fitted with a mass disk (36) that can move around the limiting post (35), so that when the power source (1) drives the transmission body (2) to rotate, the transmission body (2) can bend, thereby making the contact between the grinding component (4) and the workpiece being ground in an irregular state.

2. The abrasive tool according to claim 1, characterized in that, The mass disk (36) is provided with a first elliptical hole (37). The mass disk (36) has a spindle-shaped structure. The mass disk (36) can rotate by relying on the cooperation of the first elliptical hole (37) and the limiting post (35). The position of the slider (32) fixed in the receiving groove (31) can be adjusted.

3. The abrasive tool according to claim 1, characterized in that, It also includes a magnetic field generator (5), and the slider (32) is a magnetic medium; the slider (32) can slide in the receiving groove (31); The magnetic field generator (5) is arranged circumferentially along the transmission body (2) and can generate a magnetic field under the excitation of an electrical signal, so that the magnetic field can generate an attractive or repulsive force with the slider (32) and thus affect the motion state of the slider (32) in the receiving groove (31).

4. The abrasive tool according to claim 3, characterized in that, The magnetic field generator (5) uses an electromagnetic coil, which does not rotate with the transmission body (2), and the slider (32) is a permanent magnet or a ferromagnet.

5. The abrasive tool according to claim 1, characterized in that, A spring is provided at one end of the slider (32) away from the center of the fixed disk (3). When the fixed disk (3) rotates, the slider (32) is elastically engaged with the spring in the receiving groove (31) under the drive of centrifugal force.

6. The abrasive tool according to claim 3, characterized in that, It also includes a protective cover (6) with an opening at the lower end face, and the fixed disk (3) and the magnetic field generator (5) are both arranged inside the protective cover (6).

7. The abrasive tool according to claim 1, characterized in that, The transmission body (2) is made of steel wire or steel wire bundle.

8. The abrasive tool according to claim 1, characterized in that, The grinding component (4) includes a fixed base (42) and a plurality of grinding units (41) fixed to the lower part of the fixed base (42). The grinding unit (41) includes a grinding body (411) and abrasive grains (412) attached to the grinding body (411).

9. The abrasive tool according to claim 8, characterized in that, The polishing unit (41) is annular, straight, or curved.

10. The abrasive tool according to claim 1, characterized in that, It also includes a connecting rod (33), and the grinding component (4) is provided with a second elliptical hole (38). The inner end of the connecting rod (33) is fixed on the fixed plate (3), and the outer end of the connecting rod (33) is vertically arranged with a connecting shaft (34). The connecting shaft (34) passes through the second elliptical hole (38) and is movably engaged with the grinding component (4). When the fixed plate (3) rotates, it can drive the connecting shaft (34) to rotate around the axis of the fixed plate (3), thereby making the grinding component (4) move by relying on the cooperation between the second elliptical hole (38) and the connecting shaft (34). The diameter of the smallest circle in the second elliptical hole (38) is greater than or equal to the outer diameter of the connecting shaft (34).

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