Centering installation assembly for main roller of silicon wafer wire cutting machine

Abstract

The utility model discloses a centering installation assembly for a main roller of a silicon wafer wire cutting machine. The centering installation assembly is provided with a tensioning piece serving as a power source and a double-head screw connected with the main roller of the silicon wafer wire cutting machine. The tensioning piece is provided with a centering base disc which is used for being connected with the supporting box to serve as a supporting point, and the centering base disc concentrically corresponds to a hole site which is formed in the supporting box and used for installing the main tangent roller and the bearing box; the end, deviating from the tangent main roller, of the double-end screw is in threaded connection with a butt joint threaded sleeve, and the butt joint threaded sleeve is driven by a tensioning piece to tension the tangent main roller so as to drive the tangent main roller to be centered under the supporting of the centering base disc. The problem that in the prior art, a main roller is not prone to being quickly and accurately centered and installed is solved.

Description

Technical Field

[0001] This utility model relates to the field of silicon wafer cutting technology, specifically to a centering mounting assembly for the main roller of a silicon wafer wire cutter. Background Technology

[0002] In the current booming semiconductor and photovoltaic industries, large-size silicon wafers have become a core driving force for industry development due to their high production efficiency and significant cost advantages. As a crucial step in silicon wafer processing, the wire cutting process for large-size silicon wafers directly determines the final quality and application value of the wafers. In this process, the main roller, as the core component supporting and driving the cutting line, plays a decisive role in the centering accuracy during installation. Any eccentricity of the main roller will lead to uneven tension distribution and trajectory deviation of the cutting line, severely affecting the processing accuracy of the silicon wafer cutting, causing defects such as wafer thickness deviation and surface ripples, and significantly reducing the product yield.

[0003] Currently, the centering and alignment of the tangent main roller installation is mostly done manually. However, the tangent main roller and its bearing housing are quite heavy. Even if one end of the main roller is fixed during installation, the installation of the other end (the movable end) is still prone to slight misalignment due to gravity and the instability of force applied manually. This slight misalignment, though seemingly minor, is amplified during the cutting process, severely affecting the stability of the tangent main roller installation and centering process, making it difficult to maintain high-precision operation of the cutting line. With the continuous expansion of large-size silicon wafer production, manual centering is not only inefficient but also fails to guarantee consistency and accuracy in every installation. Utility Model Content

[0004] The purpose of this invention is to solve the problem of the main roller being difficult to align and install quickly and accurately in the prior art, and to provide an alignment and installation component for the main roller of a silicon wafer wire cutting machine.

[0005] To address the shortcomings of the aforementioned technical problems, the present invention adopts the following technical solution: a centering mounting assembly for the main roller of a silicon wafer wire cutting machine, which has a tensioning component as a power source and a double-headed screw connected to the main roller of the wire cutting machine.

[0006] The tensioning member is provided with a centering base plate, which can be connected to the support box to make the tensioning member and the support box concentric with the holes for mounting the bearing box.

[0007] The end of the double-headed screw opposite to the tangential main roller is threadedly connected to a mating screw sleeve. The mating screw sleeve is driven by a tensioning component to tighten the tangential main roller, thereby driving the tangential main roller to center under the support of the centering base plate.

[0008] As a further optimization of the centering mounting assembly for the main roller of a silicon wafer wire cutting machine according to this utility model: the centering base plate includes a docking ring sleeved on the tensioning member. The docking ring is connected to a positioning cylinder through multiple centering plates. The positioning cylinder can be sleeved with an annular boss concentrically provided at the hole of the support box, so that the tensioning member and the hole are concentric under the support of the annular boss.

[0009] As a further optimization of the centering mounting assembly for the main roller of a silicon wafer wire cutting machine according to this utility model: the centering plate can be connected to multiple centering base holes circumferentially opened around the hole position on the support box by bolts.

[0010] As a further optimization of the centering mounting assembly for the main roller of a silicon wafer wire cutting machine according to this utility model: the centering plate and the connecting base hole provided on the bearing housing to connect the support box are spaced apart.

[0011] As a further optimization of the centering mounting assembly for the main roller of a silicon wafer wire cutting machine according to this utility model: the center of the double-ended screw is set with a hexagonal edge.

[0012] As a further optimization of the centering and mounting assembly for the main roller of a silicon wafer wire cutting machine according to this utility model: the tensioning component is a tensioning hydraulic cylinder, which includes a cylinder barrel arranged concentrically with the centering base plate. The cylinder barrel and the docking screw sleeve are concentrically slidingly fitted. An oil cavity communicating with the docking nozzle is opened on the inner wall of the cylinder barrel. A piston rod is provided in the oil cavity. The end of the piston rod that passes through the cylinder barrel can drive the docking screw sleeve to move and tighten the tangent main roller.

[0013] As a further optimization of the alignment and mounting assembly for the main roller of a silicon wafer wire cutting machine according to this utility model: a top pressure ring is fixedly provided at the end of the piston rod that protrudes from the cylinder to increase the contact area with the mating screw sleeve.

[0014] As a further optimization of the centering and mounting assembly for the main roller of a silicon wafer wire cutting machine according to this utility model: the tensioning component is a hollow jack.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention utilizes a centering base plate perfectly concentric with the holes on the support box as a support point. The centering base plate not only stably supports the tensioning component, which serves as the power source, but also ensures the precision and stability of the tensioning component during operation. With the solid support of the centering base plate, the tensioning component effectively tensions the tangential main roller fixed at one end. Subsequently, the movable end of the tangential main roller on the support box hole, along with the corresponding bearing housing, can be precisely aligned and installed onto the support box. After the tensioning component is precisely aligned and positioned, it ensures the efficiency of tangential cutting of large-size silicon wafers and greatly enhances its durability and reliability. Attached Figure Description

[0017] Figure 1This is a comparative structural diagram of the present invention in the installed state and the state before installation;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] The markings in the diagram are: 1. Support box; 2. Bearing box; 3. Tangential main roller; 4. Double-ended screw; 5. Connecting base hole; 6. Centering base plate; 601. Positioning cylinder; 602. Centering plate; 603. Docking ring; 7. Tensioner; 701. Oil chamber; 702. Piston rod; 703. Top pressure ring; 704. Cylinder; 705. Docking nozzle; 8. Docking threaded sleeve; 9. Centering base hole; 10. Docking threaded hole; 11. Annular boss. Detailed Implementation

[0020] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.

[0021] like Figure 1 As shown, a centering mounting assembly for the main roller of a silicon wafer wire slitting machine has a double-ended screw 4 that is threadedly connected to the main roller 3. The double-ended screw 4 ensures the stability of the main roller 3 during installation, avoiding installation errors caused by shaking or misalignment. Specifically, one end of the double-ended screw 4 is threaded to a mating screw hole 10 located at the center of the end face of the main roller 3, while the other end is reserved for threaded connection with a mating screw sleeve 8. The mating screw sleeve 8 is driven by a tensioning member 7, which acts as a power source and provides sufficient tension to ensure a tight fit between the main roller 3 and the bearing housing 2 during installation. The tensioning member 7 is equipped with a centering base plate 6 that can be connected to the support housing 1 and remains concentric with the mounting holes of the support housing 1. This design ensures that the tensioning member 7 maintains concentricity with the support housing 1 during operation, thereby avoiding installation errors caused by eccentricity. The centering base plate 6 serves as the support point for the tensioning component 7, bearing the tension from it and transmitting it to the tangential main roller 3 and bearing housing 2 to achieve their tight fit and aligned installation. The tensioning component 7 overcomes the weight of the tangential main roller 3 and bearing housing 2, ensuring their stability during installation. With the end of the tangential main roller 3 facing away from the double-ended screw 4 fixed by the support box 1 and corresponding structures, the tensioning component 7, by pushing the mating threaded sleeve 8 to engage with the double-ended screw 4, tightens the tangential main roller 3 and maintains its axial horizontal position. Simultaneously, it also ensures that the bearing housing 2, which mates with the tangential main roller 3, remains axially horizontal, thus achieving precise positioning and aligned installation. After installation, the double-ended screw 4, mating threaded sleeve 8, and tensioning component 7 can be separated from the tangential main roller 3 for subsequent structural installation. This improves installation efficiency while reducing complexity and risk during the installation process.

[0022] The double-ended screw 4 has a hexagonal center, making it easier for workers to use tools to secure it to the mating screw hole 10 on the tangent main roller 3. This design not only improves the ease of installation but also ensures the strength and stability of the connection. Figure 2 As shown, the tensioning component 7 is a tensioning hydraulic cylinder. Specifically, the tensioning component 7 includes a cylinder 704 that is sleeved with the centering base plate 6. An oil chamber 701 is formed on the inner wall of the cylinder 704, and the oil chamber 701 is connected to a docking nozzle 705 that can communicate with an oil pump. During operation, the oil pump pumps hydraulic oil into the oil chamber 701, pushing the piston rod 702 to slide within the cylinder 704. A pressure ring 703 is fixedly connected to the end of the piston rod 702 that passes through the cylinder 704. The pressure ring 703 can press and push the docking threaded sleeve 8, which is slidably disposed within the cylinder 704. The tensioning component 7 can provide sufficient tension to overcome the weight of the tangential main roller 3 and the bearing housing 2, and tighten them to a predetermined position. The tensioning component 7 can also be replaced with a hollow jack to work with the docking threaded sleeve 8.

[0023] To ensure that the tensioning component 7 remains concentric with the support box 1 during operation, the centering base plate 6 includes a mating ring 603 whose center is concentrically fitted with the cylinder 704. Two centering plates 602 are fixedly mounted on the outer periphery of the mating ring 603. The centering plates 602 can be bolted together with the centering base holes 9 formed on the support box 1 and concentrically positioned thereon. This design not only ensures the concentricity of the cylinder 704 and the support box 1 but also improves the stability and reliability of the entire installation process.

[0024] Furthermore, positioning cylinders 601 are fixedly connected to the outer periphery of the two centering plates 602. The positioning cylinders 601 can be sleeved with the annular bosses 11 on the support box 1 that correspond concentrically to the holes. This further improves the accuracy of the alignment between the docking ring 603 and the cylinder 704 and the holes in the support box 1, thereby ensuring the precise positioning and alignment of the tangential main roller 3 and the bearing box 2 during the installation process.

[0025] The high-precision alignment of the tangential main roller 3 and the bearing housing 2 is achieved through components such as the double-ended screw 4, the mating screw sleeve 8, and the tensioning component 7. This not only improves the installation accuracy and operating efficiency of the equipment but also reduces equipment failures and maintenance costs caused by installation errors. Furthermore, it boasts advantages such as simple structure, convenient operation, and easy maintenance.

[0026] The annular boss 11, the connecting base hole 5, and the centering base hole 9 are all structures on the existing support box 1, so there is no need to repeat the processing of the support box 1. Therefore, the efficiency of installing the tangential main roller 3 is further improved, and the cost of installing the tangential main roller 3 is reduced.

[0027] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A centering mounting assembly for the main roller of a silicon wafer wire cutting machine, characterized in that: It has a tensioning element (7) as a power source and a double-headed screw (4) connected to the tangential main roller (3); The tensioning member (7) is provided with a centering base plate (6), which can be connected to the support box (1) to make the holes of the tensioning member (7) and the support box (1) for mounting the bearing box (2) concentric; The end of the double-headed screw (4) away from the tangential main roller (3) is threaded with a mating screw sleeve (8). The mating screw sleeve (8) is driven by the tensioning member (7) to tighten the tangential main roller (3) so as to drive the tangential main roller (3) to center under the support of the centering base plate (6).

2. The centering and mounting assembly for the main roller of a silicon wafer wire cutter as described in claim 1, characterized in that: The centering base plate (6) includes a docking ring (603) sleeved on the tensioning member (7). The docking ring (603) is connected to a positioning cylinder (601) through multiple centering plates (602). The positioning cylinder (601) can be sleeved with an annular boss (11) concentrically provided at the hole of the support box (1) so that the tensioning member (7) and the hole are concentric under the support of the annular boss (11).

3. The centering and mounting assembly for the main roller of a silicon wafer wire cutter as described in claim 2, characterized in that: The centering plate (602) can be connected to the support box (1) by bolts through multiple centering base holes (9) that are circumferentially opened around the hole positions.

4. A centering mounting assembly for the main roller of a silicon wafer wire cutter as described in claim 2 or 3, characterized in that: The centering plate (602) is spaced apart from the connecting base hole (5) on the bearing housing (2) that connects to the support box (1).

5. The centering and mounting assembly for the main roller of a silicon wafer wire cutter as described in claim 1, characterized in that: The double-ended screw (4) has a hexagonal edge at its center.

6. The centering and mounting assembly for the main roller of a silicon wafer wire cutter as described in claim 1, characterized in that: The tensioning component (7) is a tensioning hydraulic cylinder. The tensioning component (7) includes a cylinder (704) that is concentrically arranged with the centering base plate (6). The cylinder (704) is concentrically slidably fitted with the docking threaded sleeve (8). The inner wall of the cylinder (704) is provided with an oil cavity (701) that communicates with the docking nozzle (705). A piston rod (702) is provided in the oil cavity (701). The end of the piston rod (702) that passes through the cylinder (704) can drive the docking threaded sleeve (8) to move and tighten the tangential main roller (3).

7. The centering and mounting assembly for the main roller of a silicon wafer wire cutter as described in claim 6, characterized in that: The piston rod (702) is fixedly provided with a top pressure ring (703) at the end that protrudes from the cylinder (704) to increase the contact area with the mating screw sleeve (8).

8. The centering mounting assembly for the main roller of a silicon wafer wire cutter as described in claim 1, characterized in that: The tensioning component (7) is a hollow jack.

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