Fixing device of polishing equipment

Abstract

The fixing device comprises a pressure plate installed on the polishing equipment and a plurality of fixing ring pieces arranged in the circumferential direction of the pressure plate, the bottom face of a ceramic disc abuts against the pressure plate, the side face of the ceramic disc is clamped and fixed to the pressure plate through the fixing ring pieces, and the fixing ring pieces comprise the metal ring pieces and the plastic ring pieces. The metal ring piece is detachably installed on the pressure plate, an embedding groove is formed in the metal ring piece, the groove bottom of the embedding groove is not higher than the side, abutting against the ceramic disc, of the pressure plate, the plastic ring piece is detachably installed in the embedding groove and connected with the metal ring piece, and the plastic ring piece abuts against the side wall of the ceramic disc. The effect of improving the durability of the fixing device is achieved.

Description

Technical Field

[0001] This application relates to the field of polishing equipment, and more particularly to a fixing device for polishing equipment. Background Technology

[0002] Polishing is a processing method that uses mechanical, chemical, or electrochemical processes to reduce the surface roughness of a workpiece in order to obtain a bright and smooth surface. Polishing machines are common polishing equipment.

[0003] Existing single-sided polishing equipment requires a fixing device to hold the ceramic disc in place during the processing of ceramic discs. Ceramic is a fragile material, so in order to reduce the probability of damage to the ceramic disc due to the fixing device, the existing fixing devices are mostly made of soft materials such as plastic. However, plastic itself has poor strength, is easily damaged, and has poor durability. Utility Model Content

[0004] To improve the durability of the fixing device, this application provides a fixing device for a polishing device.

[0005] The fixing device for a polishing equipment provided in this application adopts the following technical solution:

[0006] A fixing device for a polishing apparatus includes a pressure plate installed on the polishing apparatus and a plurality of fixing rings arranged around the pressure plate. The bottom surface of a ceramic disc abuts against the pressure plate, and the side surface is clamped and fixed to the pressure plate by the plurality of fixing rings. The fixing rings include metal rings and plastic rings. The metal rings are detachably installed on the pressure plate and have grooves. The bottom of the grooves is not higher than the side of the pressure plate that abuts against the ceramic disc. The plastic rings are detachably installed in the grooves and abut against the side wall of the ceramic disc.

[0007] By adopting the above technical solution, the combination of metal and plastic rings allows the plastic ring to abut against the ceramic disc, reducing the probability of damaging the ceramic disc during fixing. The metal ring is positioned around the plastic ring, ensuring it won't damage the ceramic disc and also reducing the probability of damage to the fixing ring caused by external forces. This improves the durability of the fixing device without easily damaging the ceramic disc. The detachable design of the plastic ring allows for continued use only by replacing the plastic ring when it is damaged, eliminating the need to replace the entire fixing ring, thus saving resources and reducing costs.

[0008] Optionally, the metal ring is mounted on the pressure plate by an adjusting bolt, which passes through the metal ring and is threaded onto the pressure plate.

[0009] By adopting the above technical solution, the adjusting bolt serves as both a connector for fixing the metal ring and an adjusting component for adjusting the metal ring.

[0010] Optionally, a disassembly bolt is fixed on the metal ring, the disassembly bolt passes through the metal ring and is threaded onto the plastic ring, and the plastic ring can be detachably installed on the metal ring through the disassembly bolt.

[0011] By adopting the above technical solution, the disassembly and assembly bolts can be used to install and reinforce the plastic ring, reducing the probability of the plastic ring falling off the metal ring.

[0012] Optionally, the pressure plate has a mounting groove on the side opposite to the ceramic disc, and the mounting groove has several mounting holes.

[0013] By adopting the above technical solution, the opening of the mounting groove allows the rotating head of the polishing equipment to clamp and fix the pressure plate by abutting against the side wall of the mounting groove, and the setting of the mounting hole allows the rotating head of the polishing equipment to fix the pressure plate on the polishing equipment by bolts.

[0014] Optionally, a pressure relief hole is provided at the center of the groove, and the pressure relief hole penetrates the pressure plate.

[0015] By adopting the above technical solution, the opening of the pressure relief hole can allow air to pass between the ceramic disc and the pressure plate, reducing the probability that the ceramic disc will be vacuum-adsorbed onto the pressure plate.

[0016] Optionally, the pressure plate has a pressure relief groove on the side facing the ceramic disc, and the pressure relief groove is connected to the pressure relief hole.

[0017] By adopting the above technical solution, the opening of the pressure relief groove can disperse the air that enters between the ceramic disk and the pressure plate through the pressure relief hole to the circumference of the ceramic disk, thereby further reducing the probability that the ceramic disk will be vacuum-adsorbed onto the pressure plate.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] By combining metal and plastic rings, the plastic ring abuts against the ceramic disc, reducing the probability of damaging the ceramic disc during fixing. The metal ring is positioned around the plastic ring, ensuring it won't damage the ceramic disc and also reducing the probability of damage to the fixing ring caused by external forces. This improves the durability of the fixing device without easily damaging the ceramic disc. The detachable design of the plastic ring allows for continued use only by replacing the plastic ring when it is damaged, eliminating the need to replace the entire fixing ring, thus saving resources and reducing costs.

[0020] The adjusting bolt serves both as a connector for fixing the metal ring and as an adjusting component for adjusting the metal ring.

[0021] The installation slot allows the rotating head of the polishing equipment to clamp and fix the pressure plate by abutting against the side wall of the installation slot. The installation hole allows the rotating head of the polishing equipment to fix the pressure plate on the polishing equipment by bolts.

[0022] The pressure relief hole allows air to pass between the ceramic disc and the pressure plate, reducing the probability that the ceramic disc will be vacuum-adsorbed onto the pressure plate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure and installation of an embodiment of this application.

[0024] Figure 2 This is a cross-sectional view of the overall structure of an embodiment of this application.

[0025] Figure 3 yes Figure 2 A magnified view of section A in the middle.

[0026] Figure 4 This is a schematic diagram of the overall structure of an embodiment of this application from another perspective.

[0027] Explanation of reference numerals in the attached diagram: 0, ceramic disc; 1, pressure plate; 2, fixing ring; 21, metal ring; 22, plastic ring; 3, groove; 4, adjusting bolt; 5, disassembly bolt; 6, mounting groove; 7, mounting hole; 8, pressure relief hole; 9, pressure relief groove. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0029] First, it should be noted that in the description of this application, the use of directional terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for descriptive purposes and do not indicate or imply that the device or component 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. Furthermore, the use of numerical quantifiers such as "first," "second," and "third" is for descriptive purposes only and should not be construed as indicating or implying relative importance. Additionally, in this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, interference fits, transition fits, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium. Therefore, those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] This application discloses a fixing device for a polishing apparatus, referring to... Figure 1 , Figure 2 and Figure 3 The system includes a circular pressure plate 1 installed on the polishing equipment and several arc-shaped fixing rings 2 arranged around the pressure plate 1. In this embodiment, six fixing rings 2 are provided, each of which is a 60-degree arc-shaped piece. The six fixing rings 2 form a ring. The bottom surface of the ceramic disk 0 abuts against the pressure plate 1, and the side is clamped and fixed to the pressure plate 1 by several fixing rings 2. The fixing rings 2 include a metal ring 21 that is detachably installed on the pressure plate 1 and a plastic ring 22 that is detachably installed on the metal ring 21. The metal ring 21 is detachably installed on the pressure plate 1. A groove 3 is provided on the metal ring 21. The bottom of the groove 3 is not higher than the side of the pressure plate 1 that abuts against the ceramic disk 0. The plastic ring 22 is detachably installed in the groove 3 and abuts against the side wall of the ceramic disk 0.

[0031] Reference Figure 2 and Figure 3 The metal ring 21 is installed on the pressure plate 1 by adjusting bolts 4. The adjusting bolts 4 pass through the metal ring 21 and are threaded onto the pressure plate 1. The adjusting bolts 4 are both the connecting parts for installing and fixing the metal ring 21 and the adjusting parts for adjusting the metal ring 21. In this embodiment, three adjusting bolts 4 are evenly arranged on each metal ring 21. Under normal conditions, the three adjusting bolts 4 install the metal ring 21 on the pressure plate 1 and keep the metal ring 21 in a relatively loose state that will not fall off. When clamping the ceramic disc 0, first tighten the adjusting bolt 4 located in the middle. After the plastic ring 22 fixes the ceramic disc 0, tighten the adjusting bolts 4 on both sides for reinforcement.

[0032] Reference Figure 2 , Figure 3 and Figure 4 A disassembly bolt 5 is fixed on the metal ring 21. The disassembly bolt 5 passes through the metal ring 21 and is threaded onto the plastic ring 22. The plastic ring 22 can be detachably installed on the metal ring 21 by the disassembly bolt 5. The disassembly bolt 5 can install and reinforce the plastic ring 22, reduce the probability of the plastic ring 22 falling off the metal ring 21, and facilitate the replacement of the plastic ring 22 when it is damaged.

[0033] Reference Figure 1 , Figure 2 and Figure 4 The pressure plate 1 has an installation groove 6 on the side away from the ceramic disc 0. The installation groove 6 has several installation holes 7. The installation groove 6 allows the rotating head of the polishing equipment to clamp and fix the pressure plate 1 by abutting against the side wall of the installation groove 6. The installation holes 7 allow the rotating head of the polishing equipment to fix the pressure plate 1 on the polishing equipment by bolts.

[0034] Reference Figure 1 and Figure 4 A pressure relief hole 8 is provided in the center of the groove 3. The pressure relief hole 8 penetrates the pressure plate 1. The side of the pressure plate 1 that abuts against the ceramic disc 0 is a smooth surface. When the side of the ceramic disc 0 that abuts against the pressure plate 1 is relatively smooth, the ceramic disc 0 is easily attracted to the pressure plate 1 after being fixed because a vacuum state exists between the two. The opening of the pressure relief hole 8 can allow air to pass between the ceramic disc 0 and the pressure plate 1, reducing the probability that the ceramic disc 0 will be attracted to the pressure plate 1 by vacuum. A pressure relief groove 9 is provided on the side of the pressure plate 1 facing the ceramic disc 0. The pressure relief groove 9 is connected to the pressure relief hole 8. The opening of the pressure relief groove 9 can disperse the air that passes through the pressure relief hole 8 between the ceramic disc 0 and the pressure plate 1 to the circumference of the ceramic disc 0, thereby further reducing the probability that the ceramic disc 0 will be attracted to the pressure plate 1 by vacuum.

[0035] The implementation principle of this application embodiment is as follows: The ceramic disc 0 to be polished is placed on the pressure plate 1, and then the ceramic disc 0 is clamped and fixed by the fixing ring 2. Then, the pressure plate 1 is installed on the head of the polishing equipment. The head drives the pressure plate 1 to rotate, thereby driving the ceramic disc 0 to rotate. A suitable grit sandpaper, grinding wheel and other polishing tools are selected to polish the ceramic disc 0. After the ceramic disc 0 is polished, the pressure plate 1 is removed and the ceramic disc 0 is removed, thus completing the polishing of the ceramic disc 0. When the plastic ring 22 is damaged, the plastic ring 22 is replaced by unscrewing the corresponding disassembly bolt 5, which reduces the replacement cost when the plastic ring 22 is damaged.

[0036] It should be noted that the above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. Although this specification has described this application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to this application. All technical solutions and improvements that do not depart from the spirit and scope of this application should be covered within the scope of the claims of this application.

Claims

1. A fixing device of a polishing apparatus, comprising a pressure plate (1) mounted on the polishing apparatus and a plurality of fixing ring pieces (2) arranged circumferentially on the pressure plate (1), a ceramic disc (0) abutting against the pressure plate (1) on the bottom surface and clamped and fixed on the pressure plate (1) by the plurality of fixing ring pieces (2) on the side surface, characterized in that: The fixed ring piece (2) comprises a metal ring piece (21) and a plastic ring piece (22), the metal ring piece (21) is detachably installed on the pressure plate (1), the metal ring piece (21) is provided with an embedding groove (3), the bottom of the embedding groove (3) is not higher than the side of the pressure plate (1) abutting against the ceramic disc (0), and the plastic ring piece (22) is detachably installed on the metal ring piece (21) in the embedding groove (3) and abuts against the side wall of the ceramic disc (0). ​ 2. A fixture for a polishing apparatus according to claim 1, wherein: The metal ring piece (21) is installed on the pressure plate (1) through an adjusting bolt (4), the adjusting bolt (4) is threaded on the pressure plate (1) and penetrates the metal ring piece (21).

3. A fixture for a polishing apparatus according to claim 2, wherein: The metal ring piece (21) is fixedly provided with a dismounting bolt (5), the dismounting bolt (5) is threaded on the plastic ring piece (22) and penetrates the metal ring piece (21), and the plastic ring piece (22) is detachably installed on the metal ring piece (21) through the dismounting bolt (5).

4. The fixture of claim 1, wherein: The pressure plate (1) is provided with an installation groove (6) on the side, away from the ceramic disc (0), of the pressure plate (1), and a plurality of installation holes (7) are formed in the installation groove (6).

5. A fixture for a polishing apparatus according to claim 4, wherein: A pressure relief hole (8) is formed in the center of the embedding groove (3) and penetrates the pressure plate (1).

6. A fixture for a polishing apparatus according to claim 5, wherein: The pressure plate (1) is provided with a pressure relief groove (9) on the side, facing the ceramic disc (0), of the pressure plate (1), and the pressure relief groove (9) is communicated with the pressure relief hole (8).

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