Guide wheel for diamond wire cutting

Abstract

The utility model discloses a guide wheel for diamond wire cutting, which relates to the technical field of diamond wire cutting and comprises a non-metal wheel, a resin ring is arranged on the periphery of the outer edge of the non-metal wheel, a trapezoidal groove is formed in the periphery of the outer edge of the resin ring, and a bearing sleeve hole is formed in the center of the non-metal wheel. Screw fixing holes are formed in the periphery of the bearing sleeve hole, hollowed-out holes are formed in the periphery of the screw fixing holes, and water through holes penetrating through the resin ring are formed in the left side face and the right side face of the non-metal wheel. The trapezoidal grooves are formed in the resin ring, so that abrasion in the using process is reduced, and heat can be dissipated quickly. The resin ring and the non-metal wheel are provided with the water through holes in a penetrating mode, water can flow through the water through holes in the working process, the water flow direction is from the non-metal wheel to the resin ring, the cleaning and lubricating effects on the diamond wires and the trapezoid-shaped grooves are achieved, silicon mud accumulation is prevented, and the deflection phenomenon is reduced.

Description

Technical Field

[0001] This utility model relates to the field of diamond wire cutting technology, specifically a guide wheel for diamond wire cutting. Background Technology

[0002] In silicon wafer cutting, diamond wire cutting technology has gradually replaced traditional slurry wire cutting methods due to its advantages such as high efficiency, low cost, low environmental pollution, and ability to cut thinner silicon wafers. The working principle of a diamond wire cutting machine is similar to that of a hacksaw. A diamond wire is mounted on the side of the silicon wafer, and this wire is tensioned between two guide rollers and a tensioning roller, driven by the main roller in a rapid reciprocating motion. The guide rollers are key components mounted on the cutting machine's bearings; their function is to ensure that the diamond wire maintains the correct tension and direction during cutting. During the cutting process, the guide rollers accelerate and decelerate according to preset process parameters to adapt to different cutting speeds.

[0003] In actual production, the guide wheel reciprocates under the drive of the diamond wire. During this movement, uneven force in the axial direction causes silicon powder to accumulate on one side of the V-groove. As the silicon powder accumulates and the V-groove's restraining force becomes insufficient, the diamond wire increasingly deviates to the other side of the V-groove, exacerbating the wobble and accelerating wear. Excessive perforations on the guide wheel reduce its cross-sectional area and volume, leading to decreased strength and rigidity, deformation, and a reduced service life. Utility Model Content

[0004] The purpose of this invention is to provide a guide wheel for diamond wire cutting to solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A guide wheel for diamond wire cutting includes a non-metallic wheel, a resin ring is provided around the outer edge of the non-metallic wheel, a trapezoidal groove is formed around the outer edge of the resin ring, a bearing sleeve hole is formed in the center of the non-metallic wheel, a screw fixing hole is formed around the bearing sleeve hole, a hollow hole is formed around the screw fixing hole, and water passage holes are provided on the left and right sides of the non-metallic wheel, which pass through the resin ring.

[0007] As a further aspect of this invention, the resin ring is made of polyoxymethylene.

[0008] As a further embodiment of this utility model: the screw fixing holes are symmetrical about the center of the left and right sides of the non-metallic wheel; the shape of the hollow holes is a fan ring; the number of hollow holes is four; and the hollow holes are symmetrically opened about the center of the left and right sides of the non-metallic wheel.

[0009] As a further aspect of this utility model, the angle of the trapezoidal groove is 45 degrees.

[0010] As a further embodiment of this utility model: the straight line containing the water passage is two mutually perpendicular diameters of the non-metallic wheel.

[0011] As a further embodiment of this utility model: an annular groove is provided between the bearing sleeve hole and the screw fixing hole to connect the water passage.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, by creating a trapezoidal groove on the resin ring, wear during use is reduced and heat dissipation is achieved quickly. Water passage holes are formed through the resin ring and the non-metallic wheel, allowing water to flow during operation. The water flow direction is from the non-metallic wheel to the resin ring, providing cleaning and lubrication for the diamond wire and the trapezoidal groove, preventing silica sludge accumulation, and reducing swaying.

[0014] 2. In this utility model, nylon and glass fiber are used as the material for the non-metallic wheel, and polyoxymethylene is used as the material for the resin ring. This not only improves the overall rigidity and hardness of the guide wheel and prevents deformation during use, but also improves the support of the guide wheel and makes it more wear-resistant.

[0015] 3. In this utility model, by opening an appropriate number of hollow holes, the overall mass of the guide wheel is reduced while maintaining the rigidity and strength of the guide wheel, making the whole unit lighter, thereby reducing wear and extending the service life of the guide wheel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an enlarged view of the trapezoidal groove structure in this utility model;

[0018] Figure 3 This is a cross-sectional view of section AA in this utility model.

[0019] In the diagram: 1. Non-metallic wheel; 2. Resin ring; 3. Bearing sleeve hole; 4. Screw fixing hole; 5. Hole; 6. Trapezoidal groove; 7. Water passage hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 In this embodiment of the utility model, a guide wheel for diamond wire cutting includes a non-metallic wheel 1. A resin ring 2 is provided around the outer edge of the non-metallic wheel 1. A trapezoidal groove 6 is provided around the outer edge of the resin ring 2. A bearing sleeve hole 3 is provided in the center of the non-metallic wheel 1. A screw fixing hole 4 is provided around the bearing sleeve hole 3. A hollow hole 5 is provided around the screw fixing hole 4. Water passage holes 7 that penetrate the resin ring 2 are provided on the left and right sides of the non-metallic wheel 1.

[0022] The resin ring 2 is made of polyoxymethylene. In this invention, the use of nylon, glass fiber, and polyoxymethylene materials improves the product's hardness while enhancing the wear resistance of the resin ring itself.

[0023] Among them, the screw fixing holes 4 are symmetrically opened around the center of the left and right sides of the non-metallic wheel 1.

[0024] The perforated holes 5 are fan-shaped, and there are four perforated holes 5, which are symmetrically opened around the center of the left and right sides of the non-metallic wheel 1. The appropriate number of perforated holes maintains the overall rigidity and strength while reducing the weight of the guide wheel.

[0025] The trapezoidal groove 6 has an angle of 45 degrees. This utility model uses a 45-degree trapezoidal groove 6 to strengthen the restraining force between the guide wheel pair and the steel wire, and reduce the occurrence of sway.

[0026] The water passage 7 is located on a straight line formed by two mutually perpendicular diameters of the non-metallic wheel 1. This invention provides a through-hole between the non-metallic wheel 1 and the resin ring, with water flowing from the non-metallic wheel 1 to the resin ring. This allows water to pass through during operation, reducing wear on the diamond wire and resin ring, and preventing dust accumulation in the groove.

[0027] An annular groove is provided between the bearing sleeve hole 3 and the screw fixing hole 4 to connect the water passage 7. This invention connects the water passage 7 through the annular groove, allowing water to flow through all passages by simply passing water through one passage during use.

[0028] The working principle of this utility model is as follows: When in use, the two ends of the diamond wire are first wound into the trapezoidal grooves 6 in the two guide wheels to ensure that the diamond wire maintains the correct tension and direction during the cutting process. During the cutting process, water is passed through the water passage 7, and the water flow direction is from the non-metallic wheel 1 to the resin ring 2. The trapezoidal grooves 6 and the resin ring 2 are rinsed and lubricated at the same time, which reduces friction, reduces wear, avoids the accumulation of silica mud, and reduces the occurrence of sway phenomenon.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A guide wheel for diamond wire cutting, comprising a non-metallic wheel (1), characterized in that: A resin ring (2) is provided around the outer edge of the non-metallic wheel (1). A trapezoidal groove (6) is provided around the outer edge of the resin ring (2). A bearing sleeve hole (3) is provided in the center of the non-metallic wheel (1). A screw fixing hole (4) is provided around the bearing sleeve hole (3). A hollow hole (5) is provided around the screw fixing hole (4). A water passage hole (7) is provided on the left and right sides of the non-metallic wheel (1) that passes through the resin ring (2).

2. A guide wheel for diamond wire cutting according to claim 1, characterized in that: The resin ring (2) is made of polyoxymethylene.

3. A guide wheel for diamond wire cutting according to claim 1, characterized in that: The screw fixing holes (4) are symmetrically opened around the center of the left and right sides of the non-metallic wheel (1).

4. A guide wheel for diamond wire cutting according to claim 1, characterized in that: The hollow hole (5) is shaped like a fan ring, and there are four hollow holes (5). The hollow holes (5) are symmetrically opened around the center of the left and right sides of the non-metallic wheel (1).

5. A guide wheel for diamond wire cutting according to claim 1, characterized in that: The angle of the trapezoidal groove (6) is 45 degrees.

6. A guide wheel for diamond wire cutting according to claim 1, characterized in that: The straight line containing the water passage (7) is the two mutually perpendicular diameters of the non-metallic wheel (1).

7. A guide wheel for diamond wire cutting according to claim 1, characterized in that: An annular groove is provided between the bearing sleeve hole (3) and the screw fixing hole (4) to connect the water passage hole (7).

Images