CN113910071A

CN113910071A - Grinding device

Info

Publication number: CN113910071A
Application number: CN202111190785.XA
Authority: CN
Inventors: 周昂; 张绿林
Original assignee: Guangzhou Qunchuang Cnc Machine Tool Co ltd
Current assignee: Guangzhou Qunchuang Cnc Machine Tool Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-01-11

Abstract

The invention discloses a grinding device, which comprises a bearing seat, wherein the bearing seat is of a hollow structure, the outer surface of the bearing seat is a stepped cylinder, a first annular groove, a second annular groove and a third annular groove are formed in the outer surface of the bearing seat, and a bearing accommodating groove is formed in the inner surface of the bearing seat; the shaft core penetrates through the bearing seat; the bearing is arranged in the bearing accommodating groove and is in contact with the shaft core; the first grinding part is arranged in the first annular groove; the second grinding part is arranged in the second annular groove; the driving component is arranged in the third annular groove. The outer surface of the bearing seat is provided with the driving assembly and the plurality of spaced grinding parts, and the plurality of spaced grinding parts can reduce the contact area between the grinding parts and a workpiece, so that the condition that the workpiece is burnt is avoided, and the grinding effect of the workpiece is improved; the bearing is arranged on the inner surface of the bearing seat, so that the distance between the grinding part and the bearing is shortened, and the rigidity of the grinding device is improved.

Description

Grinding device

Technical Field

The invention relates to the technical field of grinding, in particular to a grinding device

Background

The grinding device generally drives the grinding part to rotate through the grinding rod to grind the workpiece, and when the grinding part is rotated by the grinding device, the grinding part is contacted with the workpiece, and the contacted area generates high temperature, so that the high temperature can reduce the hardness of the grinding part and can cause the workpiece to be burnt, and the service life of the grinding device and the quality of the workpiece are further influenced. In addition, the rigidity of the spindle system of the conventional grinding device is insufficient, and the grinding device can generate radial vibration in the process of high-speed rotation, so that the grinding precision is reduced.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a grinding device.

In order to achieve the purpose, the invention provides the following technical scheme: a grinding apparatus comprising: the bearing seat is of a hollow structure, the outer surface of the bearing seat is a stepped cylinder, a first annular groove, a second annular groove and a third annular groove are formed in the outer surface of the bearing seat, a gap is formed between the first annular groove and the second annular groove, and a bearing accommodating groove is formed in the inner surface of the bearing seat; the shaft core penetrates through the bearing seat; the bearing is arranged in the bearing accommodating groove and is in contact with the shaft core; the first grinding part is arranged in the first annular groove; the second grinding part is arranged in the second annular groove; and the driving component is arranged in the third annular groove.

More specifically, in the above technical solution, the first grinding member and the second grinding member are circular ring-shaped grinding members.

More specifically, in the above technical solution, the outer diameter of the second grinding member is larger than the outer diameter of the first grinding member.

More specifically, in the above technical solution, an included angle between a common tangent of the first grinding member and the second grinding member and a horizontal direction is 15 °.

More specifically, in the above technical solution, the first grinding member and the second grinding member are grinding wheels.

More specifically, in the above technical solution, a serrated grinding layer is disposed on an outer surface of the grinding wheel.

Further specifically, in the above technical scheme, the bearing includes inner bearing and outer bearing, the surface of outer bearing with bearing holding tank contact, the internal surface of inner bearing with the axle core contact, the surface of inner bearing is provided with the dust cover.

More specifically, in the above technical solution, the grinding device further includes a supporting member, fixing holes are disposed on two sides of the supporting member, and a portion of the shaft core protruding from the bearing seat is connected to the fixing holes.

More specifically, in the above technical solution, the driving component is a pulley.

Compared with the prior art, the invention has the beneficial effects that: the outer surface of the bearing seat is provided with the driving assembly and the plurality of spaced grinding parts, the driving assembly drives the bearing seat and the grinding parts to rotate, the external rotor type rotation is realized, the plurality of spaced grinding parts can reduce the contact area between the grinding parts and a machined part, the condition that the machined part is burnt is avoided, and the grinding effect of the machined part is improved; the bearing is arranged on the inner surface of the bearing seat, so that the distance between the grinding part and the bearing is shortened, and the rigidity of the grinding device is improved.

Drawings

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic cross-sectional view of a bearing seat according to the present invention;

fig. 4 is a schematic perspective view of the bearing of the present invention.

In the figure: 1. a bearing seat; 101. a first annular groove; 102. a second annular groove; 103. a third annular groove; 104. a bearing receiving groove; 2. a shaft core; 3. a bearing; 301. an inner bearing; 302. an outer bearing; 4. a first abrading article; 5. a second abrading article; 6. a drive assembly; 7. a support member; 8. and (7) fixing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1-4, the present invention provides a grinding device, including a bearing seat 1, wherein the bearing seat 1 is a hollow structure, an outer surface of the bearing seat 1 is a cylindrical body with a step shape, as shown in fig. 3, a first annular groove 101, a second annular groove 102 and a third annular groove 103 are formed on the outer surface of the bearing seat 1, a space is formed between the first annular groove 101 and the second annular groove 102, and a bearing receiving groove 104 is formed on the inner surface of the bearing seat 1; the shaft core 2 penetrates through the bearing seat 1; the bearing 3 is arranged in the bearing accommodating groove 104 and is contacted with the shaft core 2; a first grinding member 4 provided in the first annular groove 101; a second grinding member 5 provided in the second annular groove 102; and the driving assembly 6 is arranged in the third annular groove 103.

The outer surface of the bearing seat 1 is provided with the driving assembly 6 and a plurality of alternate grinding parts, the driving assembly 6 drives the bearing seat 1 and the grinding parts to rotate, the external rotor type rotation is realized, the contact area between the grinding parts and a workpiece can be reduced by the aid of the plurality of spaced grinding parts, the workpiece is prevented from being burnt, and the grinding effect of the workpiece is improved; the bearing 3 is arranged on the inner surface of the bearing seat 1, so that the distance between the grinding part and the bearing is shortened, and the rigidity of the grinding device is improved.

The outer surface of the grinding part can be arranged into different shapes according to different workpieces so as to grind workpieces with various shapes. By spacing the first annular groove 101 and the second annular groove 102, a gap exists between the first grinding part 4 and the second grinding part 5, air can pass through the gap in the using process and take away generated heat, so that the grinding parts are not easy to be damaged by overheating.

In some embodiments, the first abrading article 4 and the second abrading article are circular ring abrading articles, and the second abrading article 5 has an outer diameter greater than the outer diameter of the first abrading article 4. In the processing process, the annular grinding part is used for grinding the machined part with the end face, the height difference between the second grinding part 5 and the first grinding part 4 is used for carrying out feed type grinding on the machined part, the contact area between the grinding part and the machined part is reduced, the condition that the machined part is burnt is avoided, the load of the bearing and the shaft core 2 is also reduced, and the rigidity of the grinding device is improved. And utilize the grinding part of two different external diameters, can carry out fine grinding and corase grind to the machined part simultaneously, satisfy the different grinding demands of same machined part.

In some embodiments, the angle between the common tangent of the first abrading article 4 and the second abrading article 5 and the horizontal is 15 °, and a contact angle of 15 ° ensures sufficient radial stiffness of the abrading article during rotation during abrading.

In some embodiments, first abrading article 4 and second abrading article 5 are grinding wheels. Because the abrasive particles of the grinding wheel are coarse and the air holes are large, the grinding depth of the grinding wheel is large in the grinding process, the grinding wheel is not easy to block and generate heat, and the condition that a workpiece is burnt can be reduced.

In some embodiments, the serrated grinding layer is arranged on the outer surface of the grinding wheel, so that the heat dissipation effect and stability of the grinding wheel can be improved, the wear rate of the grinding wheel is reduced, and the service life of the grinding wheel in the grinding process is prolonged.

In some embodiments, as shown in fig. 4, the bearing 3 includes an inner bearing 301 and an outer bearing 302, an outer surface of the outer bearing 302 is in contact with the bearing receiving groove 104, an inner surface of the inner bearing 301 is in contact with the shaft core 2, and an outer surface of the inner bearing 301 is provided with a dust cover. The bearing 3 plays the part of fixing and reducing load coefficient of friction in mechanical transmission process, and the inevitable dust that can produce in the grinding process, the dust cover can guarantee that this bearing possesses good dustproof ability for bearing 3 can move under good state, effectively improves the life of bearing.

In some embodiments, as shown in fig. 1, the grinding device further includes a support 7, fixing holes 8 are formed at both sides of the support 7, and the portion of the shaft core 2 protruding from the bearing seat 1 is connected to the fixing holes 8. The grinding device can be moved freely by the support 7, can be used in different scenes, and improves the safety of the grinding process.

In some embodiments, the drive assembly 6 is a pulley. In the grinding process, the belt pulley drives the bearing seat 1 to rotate together with the grinding part, the belt pulley is a component for increasing adhesive force, the belt pulley increases the transmission capacity of rotation, the slipping condition in the rotation process is prevented, and the smooth implementation of the grinding process is guaranteed.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If there is a description of the first and second for the purpose of distinguishing between technical features, it is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated

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

Claims

1. A grinding apparatus, comprising:

the bearing seat is of a hollow structure, the outer surface of the bearing seat is a stepped cylinder, a first annular groove, a second annular groove and a third annular groove are formed in the outer surface of the bearing seat, a gap is formed between the first annular groove and the second annular groove, and a bearing accommodating groove is formed in the inner surface of the bearing seat;

the shaft core penetrates through the bearing seat;

the bearing is arranged in the bearing accommodating groove and is in contact with the shaft core;

the first grinding part is arranged in the first annular groove;

the second grinding part is arranged in the second annular groove;

and the driving component is arranged in the third annular groove.

2. A grinding apparatus according to claim 1, wherein said first and second grinding members are annular grinding members.

3. A grinding apparatus according to claim 2, wherein the second grinding member has an outer diameter greater than the outer diameter of the first grinding member.

4. A grinding apparatus according to claim 3 wherein the common tangent to the first and second grinding members is at an angle of 15 ° to the horizontal.

5. A grinding apparatus according to any of claims 1 to 4, wherein said first and second grinding members are grinding wheels.

6. A grinding apparatus according to claim 5, wherein the outer surface of the grinding wheel is provided with a serrated grinding layer.

7. A grinding apparatus according to claim 1, wherein the bearing includes an inner bearing and an outer bearing, an outer surface of the outer bearing is in contact with the bearing receiving groove, an inner surface of the inner bearing is in contact with the spindle, and an outer surface of the inner bearing is provided with a dust cover.

8. A grinding apparatus according to claim 1, further comprising a support member having fixing holes provided at both sides thereof, the portion of the shaft core protruding from the bearing housing being connected to the fixing holes.

9. A grinding apparatus as defined in claim 1 in which the drive assembly is a pulley.