Polishing disc dressing wheel of double-sided polishing machine

Abstract

The utility model discloses a double-sided polishing machine, and particularly relates to a polishing disk finishing wheel of the double-sided polishing machine. The trimming wheel comprises an upper trimming wheel body, a middle positioning assembly and a lower trimming wheel body, an upper annular groove is formed in the upper surface of the upper trimming wheel body, trimming blocks arranged circumferentially are installed in the upper annular groove, a diamond coating is arranged on the upper surface of each trimming block, a lower annular groove is formed in the lower surface of the lower trimming wheel body, and a diamond coating is arranged on the lower surface of each trimming block. The lower surface of each dressing wheel block is provided with a diamond coating face, the edge of the inner hole of the middle positioning assembly is provided with a positioning boss, and the upper end and the lower end of the positioning boss penetrate into the center hole of the upper dressing wheel body and the center hole of the lower dressing wheel body respectively. Compared with an original trimming device, the trimming device is better in polishing effect, more convenient to operate and better in replaceability, the cost is saved, different numbers of trimming blocks can be configured according to different process requirements, and the trimming process is more changeable and flexible.

Description

Technical Field

[0001] The utility model relates to a double-sided polishing machine, in particular to a polishing disc dressing wheel of the double-sided polishing machine. Background Art

[0002] The double-sided polishing machine is a polishing equipment. The lower machine base of the equipment is provided with a drivable inner and outer pin ring assembly. When the equipment is performing polishing processing, polishing pads are pasted on the surfaces of the upper and lower polishing discs, and an annular workpiece fixture with arc teeth is placed between the inner and outer pin rings and on the surface of the lower polishing disc. The workpiece is placed inside the fixture. The drivable inner and outer pin ring assembly drives the workpiece fixture and the workpiece to perform planetary motion with the inner pin ring as the center. The upper disc can pressurize the workpiece vertically, and the upper and lower polishing discs perform rotational motion. The workpiece sandwiched in the middle and the polishing disc perform relative motion, thereby achieving the purpose of polishing processing. The polishing disc needs to be trimmed because after the polishing disc has been used for a period of time, the polishing agent used in the processing process and the abrasive particles generated in the polishing process will adhere to the polishing pad on the surface of the polishing disc, and the shape of the polishing pad will change, which will affect the processing effect. At this time, it is necessary to use a super-hard dressing wheel to grind the polishing pad on the surface of the polishing disc, remove the binder and abrasive particles generated in the processing process, flatten the shape of the polishing pad, and improve the polishing ability of the polishing disc.

[0003] When the polishing disc is being dressed, an annular dressing wheel with arc-shaped teeth and diamond coating on the upper and lower surfaces is evenly distributed in the middle area of ​​the drivable inner and outer pin ring components set at the machine base and the upper surface of the polishing pad of the lower polishing disc. The drivable inner and outer pin ring components drive the annular dressing wheel to perform planetary motion with the inner pin ring as the center, and the dressing wheel is pressurized by the upper disc. The upper and lower polishing discs rotate, so that the annular dressing wheel and the polishing disc perform relative rotation and friction, thereby completing the dressing of the polishing disc.

[0004] However, the dressing wheel of the existing double-sided polishing machine is similar to a sandwich structure, consisting of an upper dressing wheel body, an intermediate pad and a lower dressing wheel body; the upper surface of the upper dressing wheel body is partially coated with diamonds, and the lower surface of the lower dressing wheel body is partially coated with diamonds; the upper dressing wheel body and the lower dressing wheel body are thin-sheet gear-type. The diamonds on the upper and lower surfaces of the dressing wheel are inconsistently worn due to the processing conditions. When the diamonds on one side of the surface are worn to the point where they can no longer be used, the entire dressing wheel body needs to be replaced, which is costly. At the same time, the existing dressing wheel is coated with a large area of ​​the dressing wheel body surface. In order to ensure the coating effect, the processing flatness requirements of the upper and lower dressing wheel bodies are very high, which increases the processing cost. In addition, during the dressing process, the dressing wheel made of an entire metal material is in rigid contact with the upper and lower polishing discs. During processing, due to the flatness problem of the polishing disc surface, sometimes excessive processing resistance is generated, making the dressing effect of the polishing disc uneven, resulting in poor polishing effect and poor part polishing quality. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a polishing disc dressing device for a double-sided polishing machine, aiming to improve the polishing effect, facilitate operation, improve the replaceability and save costs.

[0006] In order to achieve the above object, the utility model is implemented by the following technical solutions:

[0007] A polishing disc dressing wheel for a double-sided polishing machine comprises an upper dressing wheel body, an intermediate positioning assembly and a lower dressing wheel body, wherein an upper annular groove is provided on the upper surface of the upper dressing wheel body, circumferentially arranged dressing blocks are installed in the upper annular groove, and the upper surface of each correction block is provided with a diamond coating, and a lower annular groove is provided on the lower surface of the lower dressing wheel body, circumferentially arranged dressing wheel blocks are installed in the lower annular groove, and the lower surface of each dressing wheel block is provided with a diamond coating surface, and a positioning boss is provided on the edge of the inner hole of the intermediate positioning assembly, and the upper and lower ends of the positioning boss respectively penetrate into the center holes of the upper dressing wheel body and the lower dressing wheel body.

[0008] Preferably, a gasket is provided on the outer side of the middle positioning assembly between the upper trimming wheel body and the lower trimming wheel body.

[0009] Preferably, the upper trimming wheel body and the lower trimming wheel body are annular parts with thin circular arc teeth, and the outer diameters of the upper trimming wheel body and the lower trimming wheel body are the same.

[0010] Preferably, the outer arc edge of the upper trimming wheel body is the upper arc teeth; and the outer arc edge of the lower trimming wheel body is the lower arc teeth.

[0011] Preferably, the upper trimming wheel body and the lower trimming wheel body are made of metal.

[0012] Preferably, the above-mentioned intermediate positioning component is an integral structure or a split structure.

[0013] Preferably, the intermediate positioning component is made of plastic.

[0014] Preferably, the dressing block and the dressing wheel block are annular blocks, and the shape can be embedded in the annular grooves provided on the surfaces of the upper dressing wheel body and the lower dressing wheel body.

[0015] Preferably, the trimming block and the trimming wheel block are connected to the upper trimming wheel body or the lower trimming wheel body through trimming block connecting screws respectively.

[0016] Preferably, the trimming block and the trimming wheel block are made of metal.

[0017] The advantages and effects of the utility model: the utility model is lighter than the original integral dressing wheel, has high replaceability and reusability, and is easy to replace. The utility model is light in weight, and the operator is more convenient in installation and replacement. When the diamond loss on the upper and lower surfaces of the dressing wheel is inconsistent, and the diamond loss on one side of the surface cannot be continued to be used, the dressing block on the dressing wheel body can be replaced, which saves costs. At the same time, different numbers of dressing blocks can be configured according to different process requirements, making the dressing process more flexible and flexible, and a more flexible dressing process can be quickly realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of a front cross-sectional structure.

[0019] Figure 2 A schematic diagram of the three-dimensional exploded structure of the utility model.

[0020] In the figure: 1, dressing block; 2, upper dressing wheel body; 3, middle positioning assembly; 4, gasket; 5, lower dressing wheel body; 6, dressing block connecting screw; 101, diamond coating; 201, positioning boss; 301, upper arc tooth; 302, lower arc tooth; 303, upper annular groove. DETAILED DESCRIPTION

[0021] The following embodiments are only specific embodiments of the present invention. In order to make the purpose, technical solutions and advantages of the present invention clear at a glance, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The protection scope of the present invention is not limited by the embodiments.

[0022] like Figure 1-2 As shown, the utility model is a polishing disc dressing wheel for a double-sided polishing machine, which includes an upper dressing wheel body 2, an intermediate positioning component 3, and a lower dressing wheel body 5. The upper dressing wheel body 2, the intermediate positioning component 3, the gasket 4 and the lower dressing wheel body 5 are provided with a center hole at their central positions, wherein the upper surface of the upper dressing wheel body 2 is provided with an upper annular groove 303, and circumferentially arranged dressing blocks 1 are installed in the upper annular groove 303, and the upper surface of each correction block 1 is provided with a diamond coating 101, and the lower surface of the lower dressing wheel body 5 is provided with a lower annular groove, and the lower annular groove 303 is provided with a lower ring. Circumferentially arranged dressing wheel segments are installed in the groove, and the lower surface of each dressing wheel segment is provided with a diamond-coated surface. The intermediate positioning component 3 is arranged between the upper dressing wheel body 2 and the lower dressing wheel body 5. A positioning boss 201 is arranged at the edge of the inner hole of the intermediate positioning component 3. The upper and lower ends of the positioning boss 201 are respectively inserted into the center holes of the upper dressing wheel body 2 and the lower dressing wheel body 5, so that the upper dressing wheel body 2 and the lower dressing wheel body 5 are coaxially positioned. A gasket 4 is provided on the outer side of the intermediate positioning component 3 between the upper dressing wheel body 2 and the lower dressing wheel body 5.

[0023] The upper dressing wheel body 2 and the lower dressing wheel body 5 are annular parts with thin circular arc teeth, and the outer diameters of the upper dressing wheel body 2 and the lower dressing wheel body 5 are the same.

[0024] The outer arc edge of the upper dressing wheel body 2 is the upper arc tooth 301 ; the outer arc edge of the lower dressing wheel body 5 is the lower arc tooth 302 .

[0025] The upper dressing wheel body 2 and the lower dressing wheel body 5 are made of metal.

[0026] The above-mentioned intermediate positioning component 3 can be set as an integral structure or a split structure; the intermediate positioning component 3 is preferably made of plastic.

[0027] The above-mentioned trimming block 1 and trimming wheel block are annular blocks, and their shapes can be embedded in the annular grooves provided on the surfaces of the upper trimming wheel body 2 and the lower trimming wheel body 5. The trimming block 1 and the trimming wheel block are connected to the upper trimming wheel body 2 or the lower trimming wheel body 5 through the trimming block connecting screws 6.

[0028] The above-mentioned dressing block 1 and dressing wheel block are made of metal.

[0029] The working principle of the utility model is as follows:

[0030] The utility model is composed of an upper trimming wheel body, an intermediate positioning assembly, a lower trimming wheel body, a gasket, a trimming block and a trimming block connecting screw. The trimming blocks arranged in a circumferential manner are installed in the upper annular groove on the upper surface of the upper trimming wheel body, the trimming wheel blocks arranged in a circumferential manner are installed in the lower annular groove on the lower surface of the lower trimming wheel body, the middle part is separated by the intermediate positioning assembly, and the gasket is arranged in the middle of the upper trimming wheel body and the lower trimming wheel body and on the outside of the intermediate positioning assembly. When performing polishing disc dressing, the split polishing disc wheels are evenly distributed in the middle of the drivable inner and outer pin ring components set at the machine base and on the upper surface of the polishing pad of the lower polishing disc. The diamond coating surface of the upper dressing wheel body with the dressing block faces upward, and the diamond coating surface of the lower dressing wheel body with the dressing wheel block faces downward. The drivable inner and outer pin ring components simultaneously drive the annular dressing wheel to perform planetary motion with the inner pin ring as the center, and the workpiece is pressed by the upper disc pressure. The upper and lower polishing discs rotate, so that the annular dressing wheel and the polishing disc perform relative rotation and friction, thereby realizing the dressing of the polishing disc.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A polishing disc dressing wheel for a double-sided polishing machine, comprising an upper dressing wheel body (2), an intermediate positioning assembly (3), and a lower dressing wheel body (5), characterized in that An upper annular groove (303) is provided on the upper surface of the upper dressing wheel body (2), and circumferentially arranged dressing blocks (1) are installed in the upper annular groove, and the upper surface of each dressing block (1) is provided with a diamond coating (101); a lower annular groove is provided on the lower surface of the lower dressing wheel body (5), and circumferentially arranged dressing wheel blocks are installed in the lower annular groove, and the lower surface of each dressing wheel block is provided with a diamond coating surface; a positioning boss (201) is provided on the edge of the inner hole of the middle positioning component (3), and the upper and lower ends of the positioning boss (201) respectively penetrate into the center holes of the upper dressing wheel body (2) and the lower dressing wheel body (5).

2. The polishing disc dressing wheel of a double-sided polishing machine according to claim 1, characterized in that A gasket (4) is provided on the outer side of the intermediate positioning assembly (3) between the upper trimming wheel body (2) and the lower trimming wheel body (5).

3. The polishing disc dressing wheel of a double-sided polishing machine according to claim 1, characterized in that The upper trimming wheel body (2) and the lower trimming wheel body (5) are annular parts with thin circular arc teeth, and the outer diameters of the upper trimming wheel body (2) and the lower trimming wheel body (5) are the same.

4. The polishing disc dressing wheel of a double-sided polishing machine according to claim 3, characterized in that The outer arc edge of the upper trimming wheel body (2) is the upper arc tooth (301); the outer arc edge of the lower trimming wheel body (5) is the lower arc tooth (302).

5. A polishing disc dressing wheel for a double-sided polishing machine according to claim 1 or 4, characterized in that The upper trimming wheel body (2) and the lower trimming wheel body (5) are made of metal.

6. The polishing disc dressing wheel for a double-sided polishing machine according to claim 1, characterized in that The intermediate positioning component (3) is an integral or split structure.

7. The polishing disc dressing wheel of a double-sided polishing machine according to claim 6, characterized in that The intermediate positioning component (3) is made of plastic.

8. The polishing disc dressing wheel for a double-sided polishing machine according to claim 1, characterized in that The dressing block (1) and the dressing wheel block are annular blocks, and are shaped so as to be embedded in annular grooves provided on the surfaces of the upper dressing wheel body (2) and the lower dressing wheel body (5).

9. The polishing disc dressing wheel for a double-sided polishing machine according to claim 1, characterized in that The trimming block (1) and the trimming wheel block are connected to the upper trimming wheel body (2) or the lower trimming wheel body (5) via trimming block connecting screws (6) respectively.

10. The polishing disc dressing wheel for a double-sided polishing machine according to claim 1, characterized in that The trimming block (1) and the trimming wheel block are made of metal.

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