Polishing brush fixing structure with high cylindricity

Abstract

The utility model belongs to the technical field of polishing brushes of board polishing machines in the PCB (printed circuit board) industry, and particularly relates to a high-cylindricity polishing brush fixing structure which comprises a polishing brush shaft and a polishing brush sleeved outside the polishing brush shaft, two ends of the polishing brush are respectively provided with a first polishing brush retaining sleeve and a second polishing brush retaining sleeve which are sleeved on the polishing brush shaft, the polishing brush shaft is provided with a plurality of support rings, and the support rings are connected with the first polishing brush retaining sleeve and the second polishing brush retaining sleeve. And the supporting ring is arranged between the inner surface of the polish-brush and the outer surface of the polish-brush shaft. Compared with the prior art, the problem that the cylindricity of the polish-brush is reduced due to large eccentric force in the rotation process of the polish-brush is solved, the support rings are arranged on the polish-brush shaft through the ingenious structural design, and the support rings are arranged between the polish-brush shaft and the polish-brush, so that the cylindricity of the polish-brush is reduced, and the cylindricity of the polish-brush is improved. The polishing brush can provide support when eccentric force is caused by the operation of the polishing brush, so that the cylindricity of the polishing brush is improved, the concentricity of the polishing brush during operation is improved, the grinding effect is more stable, the copper thickness of the ground PCB is more uniform, and the vibration and noise during operation are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding brushes of a grinding machine in the PCB industry, and in particular relates to a high-cylindricity grinding brush fixing structure. Background Art

[0002] The existing conventional grinding machine brushes are generally fixed with right-angled gear sleeves. This fixing method relies on the friction between the two end faces of the gear sleeves and the end face of the brush to fix the brush. The concentricity is low. If the clamping force of the gear sleeve is too large or too small, it will cause the brush to be eccentric and produce loud noise. Secondly, there is a large eccentric force during the rotation of the brush, which causes the cylindricity of the brush to decrease and causes the brush to deform.

[0003] In view of this, the utility model aims to provide a high-cylindricity brush fixing structure, which can solve the problem of reduced brush cylindricity caused by large eccentric force during the rotation of the brush, improve the concentricity of the brush during operation, and reduce vibration and noise during operation. Utility Model Content

[0004] The purpose of the utility model is to provide a high-cylindricity grinding brush fixing structure to address the deficiencies of the existing technology, which can solve the problem of reduced grinding brush cylindricity caused by large eccentric force during the rotation of the grinding brush, improve the concentricity of the grinding brush during operation, and reduce vibration and noise during operation.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-cylindricity grinding brush fixing structure includes a grinding brush shaft and a grinding brush sleeved on the outside of the grinding brush shaft, wherein the two ends of the grinding brush are respectively provided with a first grinding brush gear sleeve and a second grinding brush gear sleeve sleeved on the grinding brush shaft, and the grinding brush shaft is provided with a plurality of support rings, and the support rings are arranged between the inner surface of the grinding brush and the outer surface of the grinding brush shaft.

[0007] As an improvement to the high-cylindricity brush fixing structure of the present invention, the support ring is arranged to protrude from the outer surface of the brush shaft.

[0008] As an improvement to the high-cylindricity grinding brush fixing structure of the present invention, the support rings are arranged at intervals on the surface of the grinding brush shaft.

[0009] As an improvement to the high-cylindricity grinding brush fixing structure of the present invention, the first grinding brush stop sleeve and the second grinding brush stop sleeve clamp and fix the two ends of the grinding brush.

[0010] As an improvement to the high-cylindricity grinding brush fixing structure of the present invention, a right-angled stop sleeve is further formed at the end of the grinding brush, and the outer diameter of the support ring is larger than the size of the right-angled stop sleeve.

[0011] As an improvement to the high-cylindricity grinding brush fixing structure of the present invention, the support ring includes a middle ring and a left ring and a right ring respectively arranged on both sides of the middle ring, and a slope is formed on the brush feed side of the support ring.

[0012] As an improvement to the high-cylindricity grinding brush fixing structure of the present invention, a groove is formed on the outer wall of the first grinding brush sleeve.

[0013] As an improvement to the high-cylindricity grinding brush fixing structure of the present invention, the second grinding brush retaining sleeve is in the shape of a circular ring as a whole.

[0014] Compared with the prior art, the present invention aims to solve the problem of reduced cylindricity of the brush caused by a large eccentric force during the rotation of the brush. To address this problem, the present invention adopts an ingenious structural design to provide several support rings on the brush shaft, and the support rings are provided between the brush shaft and the brush, which can provide support when the eccentric force is caused by the operation of the brush, thereby improving the cylindricity of the brush and the concentricity of the brush during operation, making the grinding effect more stable, the copper thickness of the ground PCB board more uniform, and reducing vibration and noise during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the structural diagrams of the present utility model.

[0016] Figure 2 This is the second structural diagram of the present utility model. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0019] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0020] like Figure 1 and 2 As shown, the utility model provides a high-cylindricity brush fixing structure, comprising a brush shaft 1 and a brush 2 sleeved on the brush shaft 1. A first brush stop sleeve 3 and a second brush stop sleeve 4 sleeved on the brush shaft 1 are respectively provided at both ends of the brush 2. The brush shaft 1 is provided with a plurality of support rings 5, which are disposed between the inner surface of the brush 2 and the outer surface of the brush shaft 1. The first and second brush stop sleeves 3 and 4 are used to clamp the two sides of the brush 2, and the support rings 5 ​​in the middle provide support, thereby reducing the vibration of the brush 2 during operation and achieving a more uniform grinding effect.

[0021] The support ring 5 is arranged to protrude from the outer surface of the brush shaft 1. The support ring 5 can provide support when the brush 2 causes eccentric force during operation, thereby improving the cylindricity of the brush 2.

[0022] The support rings 5 ​​are arranged at intervals on the surface of the brush shaft 1. In this embodiment, three support rings 3 are provided, and the three support rings 3 are arranged at intervals.

[0023] The first grinding brush stop sleeve 3 and the second grinding brush stop sleeve 4 clamp and fix the two ends of the grinding brush 2.

[0024] A right-angled stop sleeve 21 is also formed at the end of the grinding brush 2. The outer diameter of the support ring 5 is larger than the size of the right-angled stop sleeve 21, thereby ensuring that the support ring 5 can provide support when eccentric force is caused by the operation of the grinding brush.

[0025] The support ring 5 includes a middle ring 51 and a left ring 52 and a right ring 53 respectively arranged on both sides of the middle ring 51. The brush feed side of the support ring 5 is formed with a slope.

[0026] A groove is formed on the outer wall of the first grinding brush sleeve 3, and the sliding pin supports the groove, and the grinding brush push rod supports the sliding pin to achieve the effect of locking the grinding brush. The second grinding brush sleeve 4 is annular in shape as a whole.

[0027] In short, the present invention aims to solve the problem that the cylindricity of the grinding brush 2 is reduced due to the large eccentric force generated during the rotation of the grinding brush 2. To address this problem, the present invention adopts an ingenious structural design to set a plurality of support rings 5 ​​on the grinding brush shaft 1. The support rings 5 ​​are set between the grinding brush shaft 1 and the grinding brush 2, which can provide support when the eccentric force is caused by the operation of the grinding brush 2, thereby improving the cylindricity of the grinding brush 2 and the concentricity of the grinding brush 2 during operation, making the grinding effect more stable, the copper thickness of the ground PCB board more uniform, and reducing the vibration and noise during operation.

[0028] Based on the disclosure and teachings of the above description, those skilled in the art may also make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and any modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience of description only and do not constitute any limitation to the present invention.

Claims

1. A high-cylindricity grinding brush fixing structure, characterized by: It includes a brush shaft and a brush sleeved on the outside of the brush shaft, and the two ends of the brush are respectively provided with a first brush gear sleeve and a second brush gear sleeve sleeved on the brush shaft. The brush shaft is provided with several support rings, and the support rings are arranged between the inner surface of the brush and the outer surface of the brush shaft.

2. The high-cylindricity grinding brush fixing structure according to claim 1, characterized in that: The support ring is arranged to protrude from the outer surface of the brush shaft.

3. The high-cylindricity grinding brush fixing structure according to claim 1, characterized in that: The support rings are arranged at intervals on the surface of the brush shaft.

4. The high-cylindricity grinding brush fixing structure according to claim 1, characterized in that: The first grinding brush stop sleeve and the second grinding brush stop sleeve clamp and fix the two ends of the grinding brush.

5. The high-cylindricity grinding brush fixing structure according to claim 1, characterized in that: A right-angled stop sleeve is further formed at the end of the grinding brush, and the outer diameter of the support ring is larger than the size of the right-angled stop sleeve.

6. The high-cylindricity grinding brush fixing structure according to claim 1, characterized in that: The support ring includes a middle ring and a left ring and a right ring respectively arranged on both sides of the middle ring. The brush feed side of the support ring is formed with a slope.

7. The high-cylindricity grinding brush fixing structure according to claim 1, characterized in that: A groove is formed on the outer wall of the first grinding brush sleeve.

8. The high-cylindricity grinding brush fixing structure according to claim 1, characterized in that: The second grinding brush sleeve is in the shape of a circular ring as a whole.

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