A single crystal silicon rod arc polishing wheel

Abstract

The utility model discloses a single crystal silicon rod arc surface polishing wheel, specifically relates to the technical field of polishing wheels, a polishing wheel body for processing single crystal silicon rods, the polishing wheel body is provided with a ventilation component for rapid cooling and heat dissipation on the outside; the ventilation component includes a plurality of air holes, the plurality of air holes are evenly spaced, the air holes are arranged on the polishing wheel body, two dustproof nets are installed inside the air holes, the two dustproof nets are symmetrically distributed about the central axis of the air holes, and a plurality of guide plates are provided on the side away from the two dustproof nets. The utility model allows air to pass through the air holes through the arrangement of the plurality of air holes, thereby achieving the effect of rapid cooling and heat dissipation of the mounting ring, and with the aid of the guide plates arranged obliquely, the air can be guided to the air holes, thereby improving the passing efficiency of the air through the air holes, ensuring the ventilation and heat dissipation effect of the utility model, and avoiding overheating of the polishing wheel body and affecting the processing of the single crystal silicon rod.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing wheels, in particular to a single crystal silicon rod arc surface polishing wheel. Background Art

[0002] Single crystal silicon rod is a single crystal of silicon, a crystal with a basically complete lattice structure, with different properties in different directions, and is a good semiconductor material. Single crystal silicon has the physical properties of a quasi-metal, with weak electrical conductivity, and its electrical conductivity increases with the increase of temperature, with significant semi-conductivity. Its main use is as a semiconductor material and the use of solar photovoltaic power generation, heating, etc., and it is widely used in various fields, so the processing requirements for single crystal silicon rods are higher.

[0003] As shown in the application document with the prior art publication number CN202240961U, it includes a stainless steel connecting ring, an aluminum alloy brush fixing plate and a brush, wherein the brush is arranged on the aluminum alloy brush fixing plate, and a stainless steel connecting ring is arranged inside the aluminum alloy brush fixing plate. Compared with the prior art, the technical solution is simple, versatile, and easy to operate. It can be directly installed on the sand table of the monocrystalline silicon roller mill, reusing the roller mill to share the high precision and high efficiency of the roller mill. Through arc surface polishing, the surface damage layer after the roller mill works on the four edges of the monocrystalline silicon rod, such as "small edge collapse and small silicon drop", is effectively removed, and the output rate and quality of the finished monocrystalline silicon wafers are improved, which can increase the output rate by 0.5% and increase the economic benefits by 3,400 yuan / ton.

[0004] However, the polishing wheel in the above technical solution may overheat during high-speed operation. Overheating of the polishing wheel may affect the surface quality of the single crystal silicon rod, thereby affecting the processing effect of the single crystal silicon rod. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a single crystal silicon rod arc polishing wheel. Through the arrangement of multiple air holes, air can pass through the inside of the air holes, so as to achieve the effect of quickly cooling and dissipating the heat of the mounting ring, and with the help of an inclined guide plate, the air can be guided to the air holes, thereby improving the passing efficiency of the air through the air holes, ensuring the ventilation and heat dissipation effect of the utility model, avoiding overheating of the polishing wheel body and affecting the processing of the single crystal silicon rod, so as to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a single crystal silicon rod arc surface polishing wheel, comprising a polishing wheel body for processing single crystal silicon rods, wherein a ventilation component for rapid cooling and heat dissipation is provided outside the polishing wheel body;

[0007] The ventilation assembly includes a plurality of air holes, which are evenly spaced apart. The air holes are opened on the polishing wheel body. Two dust-proof nets are installed inside the air holes. The two dust-proof nets are symmetrically distributed up and down about the central axis of the air holes. A plurality of guide plates are provided on the side away from the two dust-proof nets. A windward hole is opened through the bottom of the guide plate.

[0008] In a preferred embodiment, the polishing wheel body includes a mounting ring and a plurality of mounting blocks, the plurality of mounting blocks are evenly spaced outside the mounting ring, a brush is installed on the side of the mounting block away from the mounting ring; a plurality of air holes are opened inside the mounting ring, the dust screen and the guide plate are installed on the mounting ring, and the brush can be installed on the mounting ring through the connection between the mounting block and the mounting ring, and then the mounting ring is operated to connect with the rotating shaft on the roller grinder, so that the single crystal silicon rod can be polished together with the grinding wheel on the roller grinder, and the setting of multiple mounting blocks can reduce the need to replace the brush as a whole when it is damaged, and only a single mounting block needs to be replaced, thereby reducing the manufacturing cost.

[0009] In a preferred embodiment, a plurality of fastening bolts are provided on the side of the top end of the mounting block away from the mounting ring and the side of the bottom end away from the mounting ring, the fastening bolts penetrate the mounting block and extend into the interior of the mounting ring, and the fastening bolts are threadedly connected to the mounting ring. The threaded connection between the fastening bolts and the mounting ring can enhance the connection stability between the mounting block and the mounting ring, and prevent loosening and separation.

[0010] In a preferred embodiment, the plurality of fastening bolts are evenly spaced and arranged, and the installation block can be installed in multiple directions, thereby ensuring the tightness of the connection between the installation block and the installation ring.

[0011] In a preferred embodiment, the top cross-section of the guide plate is set to be inclined. By setting the top cross-section of the guide plate to be inclined, the guide plate can guide the air to pass through the wind hole, thereby improving the air passing efficiency at the wind hole, thereby ensuring the heat dissipation effect of the utility model.

[0012] In a preferred embodiment, the plurality of guide plates are evenly spaced and arranged, and the arrangement of the plurality of guide plates can guide the air in multiple directions, thereby improving the air guiding efficiency of the utility model.

[0013] Technical effects and advantages of the utility model:

[0014] 1. Through the arrangement of multiple air holes, air can pass through the air holes, so as to achieve the effect of rapid cooling and heat dissipation of the mounting ring, and with the help of the inclined guide plate, the air can be guided to the air holes, thereby improving the passing efficiency of the air through the air holes, ensuring the ventilation and heat dissipation effect of the utility model, and avoiding overheating of the polishing wheel body to affect the processing of the single crystal silicon rod;

[0015] 2. By setting up a dustproof net, the debris generated during polishing of the polishing wheel body can be blocked to prevent the debris from adhering to the inner wall of the air hole and affecting the heat dissipation effect, thereby ensuring the heat dissipation effect of the polishing wheel body and preventing the debris from contaminating the air hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is an exploded view of the installation block of the utility model;

[0018] Figure 3 This is the front view of the installation block of the utility model;

[0019] Figure 4 This is the front view of the installation ring of the utility model;

[0020] Figure 5 It is an exploded view of the mounting ring of the utility model.

[0021] The accompanying drawings are marked as follows: 1. air hole; 2. dust screen; 3. guide plate; 4. mounting ring; 5. mounting block; 6. brush; 7. fastening bolt; 8. windward hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Refer to the instruction manual Figure 1-5 The utility model provides a single crystal silicon rod arc surface polishing wheel, comprising a polishing wheel body for processing single crystal silicon rods, wherein a ventilation component for rapid cooling and heat dissipation is arranged outside the polishing wheel body;

[0024] In order to avoid overheating of the polishing wheel body and damage to the single crystal silicon rod, Figure 1 , 2As shown in , 4 and 5, the ventilation assembly includes a plurality of air holes 1, which are evenly spaced apart, the air holes 1 are opened on the polishing wheel body, two dustproof nets 2 are installed inside the air holes 1, the two dustproof nets 2 are symmetrically distributed about the central axis of the air holes 1, and a plurality of guide plates 3 are provided on the sides away from each other, and a windward hole 8 is opened through the bottom of the guide plate 3.

[0025] In order to facilitate the polishing of single crystal silicon rods, Figure 1-3 As shown, the polishing wheel body includes a mounting ring 4 and a plurality of mounting blocks 5, and the plurality of mounting blocks 5 are evenly spaced outside the mounting ring 4, and a brush 6 is installed on the side of the mounting block 5 away from the mounting ring 4; a plurality of air holes 1 are opened inside the mounting ring 4, and the dustproof net 2 and the guide plate 3 are installed on the mounting ring 4, and the brush 6 can be installed on the mounting ring 4 through the connection between the mounting block 5 and the mounting ring 4, and then the mounting ring 4 is operated to be connected to the rotating shaft on the roller grinder, so that the single crystal silicon rod can be polished together with the grinding wheel on the roller grinder, and the setting of the plurality of mounting blocks 5 can be used when the brush 6 is damaged, without the need to replace the entire brush 6, but only a single mounting block 5 needs to be replaced, thereby reducing the cost.

[0026] In order to facilitate the individual replacement of the brush 6, as Figure 2 and 3 As shown, a plurality of fastening bolts 7 are provided on the side of the top end of the mounting block 5 away from the mounting ring 4 and the side of the bottom end away from the mounting ring 4. The fastening bolts 7 penetrate the mounting block 5 and extend into the interior of the mounting ring 4. The fastening bolts 7 are threadedly connected to the mounting ring 4. The threaded connection between the fastening bolts 7 and the mounting ring 4 can enhance the connection stability between the mounting block 5 and the mounting ring 4 to avoid loosening and separation. The plurality of fastening bolts 7 are evenly spaced and distributed. The provision of the plurality of fastening bolts 7 allows the mounting block 5 to be installed in multiple directions to ensure the tightness of the connection between the mounting block 5 and the mounting ring 4.

[0027] In order to improve the air passing efficiency in the air hole 1, Figure 1 , 2 As shown in Figures 4 and 5, the top cross-section of the guide plate 3 is set to be inclined. By setting the top cross-section of the guide plate 3 to be inclined, the guide plate 3 can guide the air to pass through the wind hole 1, thereby improving the air passing efficiency at the wind hole 1, thereby ensuring the heat dissipation effect of the utility model. The multiple guide plates 3 are evenly spaced and distributed. The arrangement of multiple guide plates 3 can guide the air in multiple directions, thereby improving the air guiding efficiency of the utility model.

[0028] By opening a plurality of air holes 1 on the mounting ring 4, when the polishing wheel body is polishing the single crystal silicon rod, air can pass through the air holes 1, thereby achieving the effect of quickly cooling and dissipating the mounting ring 4, and with the help of the inclined guide plate 3, the air can be guided to the air holes 1, thereby improving the passing efficiency of the air through the air holes 1, ensuring the ventilation and heat dissipation effect of the utility model, avoiding overheating of the polishing wheel body and affecting the processing of the single crystal silicon rod, and at the same time using the dustproof net 2 to block debris, avoiding debris adhering to the inner wall of the air hole 1 and affecting the heat dissipation effect.

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A single crystal silicon rod arc polishing wheel, characterized in that: It comprises a polishing wheel body for processing a single crystal silicon rod, and a ventilation component for rapid cooling and heat dissipation is arranged outside the polishing wheel body; The ventilation component comprises a plurality of air holes (1), the plurality of air holes (1) are evenly spaced, the air holes (1) are arranged on the polishing wheel body, two dustproof nets (2) are installed inside the air holes (1), the two dustproof nets (2) are symmetrically distributed about the central axis of the air holes (1) in the upper and lower parts, a plurality of guide plates (3) are arranged on the side away from each other, and a windward hole (8) is penetrated inside the bottom end of the guide plate (3).

2. A single crystal silicon rod arc surface polishing wheel according to claim 1, characterized in that: The polishing wheel body comprises a mounting ring (4) and a plurality of mounting blocks (5), wherein the plurality of mounting blocks (5) are evenly spaced and distributed outside the mounting ring (4), and a brush (6) is mounted on a side of the mounting block (5) away from the mounting ring (4); The plurality of air holes (1) are all arranged inside the mounting ring (4), and the dustproof net (2) and the guide plate (3) are both mounted on the mounting ring (4).

3. A single crystal silicon rod arc polishing wheel according to claim 2, characterized in that: A plurality of fastening bolts (7) are provided on the side of the top end of the mounting block (5) away from the mounting ring (4) and the side of the bottom end of the mounting block (5) away from the mounting ring (4); the fastening bolts (7) penetrate the mounting block (5) and extend into the interior of the mounting ring (4); and the fastening bolts (7) are threadedly connected to the mounting ring (4).

4. The single crystal silicon rod arc polishing wheel according to claim 3, characterized in that: The plurality of fastening bolts (7) are evenly spaced apart.

5. The single crystal silicon rod arc surface polishing wheel according to claim 1, characterized in that: The top cross section of the guide plate (3) is arranged to be inclined.

6. The single crystal silicon rod arc polishing wheel according to claim 1, characterized in that: The plurality of guide plates (3) are evenly spaced and distributed.

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