Device for measuring oblique line network by photovoltaic slice

Abstract

The utility model discloses a device for measuring an oblique line net by a photovoltaic slice, which comprises a right-angle ruler (1) matched with a roller way (3), the right-angle ruler (1) comprises a horizontal plate (11) and a vertical plate (12) which are perpendicular to each other, the horizontal plate (11) is provided with a pair of mutually parallel sliding chutes (11a), one end of each sliding chute (11a) is provided with an opening (11b), each sliding chute (11a) is internally connected with a coaxial telescopic measuring ruler (2), and the telescopic measuring rulers (2) are arranged on the roller way (3). The telescopic measuring scale (2) extends out of the sliding groove (11a) from the opening (11b) along the axis, the lower surface of the horizontal plate (11) is attached to the upper surfaces of the two roller ways (3), the inner surface of the vertical plate (12) is attached to the side faces of the roller ways (3), and the end of the telescopic measuring scale (2) abuts against the connecting positions (5) of the roller ways (3) and the bearing seats (4). The utility model has the advantages that the measuring deviation is effectively reduced, the measuring accuracy is improved, the silicon wafer quality is improved, and the working efficiency and the working quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic slicing equipment, in particular to a device for measuring the diagonal wire mesh in photovoltaic slicing. Background Technique

[0002] During the slicing process of silicon wafers, the diamond wire used is wired on the main roller of the slicing machine. The wiring positions of its left roller, right roller and lower roller directly affect the slicing effect. The main aspects of poor influence include wire marks, thickness and warping of the silicon wafers. The existing control method is that employees take photos of the diagonal wire meshes of the left roller, right roller and lower roller and compare the number of empty grooves of the wire meshes in the photos to verify whether it meets the cutting process requirements.

[0003] However, due to the limited operating space, if employees operate a little carelessly, it is very easy to cause damage to the wire mesh or unclear photos; at the same time, the groove diameter of the wire groove is extremely small, generally about 0.193 - 0.221 mm, and it is extremely easy for employees to miscount or miss counting when counting the wire grooves. And each diagonal wire mesh needs to count at least 15 - 100 wire grooves, and the main roller wire grooves that need to be verified for a slicing machine are about 45 - 300, which requires a large amount of manpower; during the process of manually verifying the number of grooves of the diagonal wire mesh, it is extremely easy to cause measurement errors of the diagonal wire mesh due to human factors, resulting in wire marks, thickness and warping of the silicon wafers. In the existing measurement of the diagonal wire mesh with a right-angle ruler, the placement position of the right-angle ruler is related to the angle and the stability is insufficient, and there are often relatively large deviations in the test results of different operators. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems of large measurement deviation, low accuracy and time-consuming and laborious of the existing diagonal wire mesh measurement, and provides a device for measuring the diagonal wire mesh in photovoltaic slicing, which effectively reduces the measurement deviation, improves the measurement accuracy, avoids wire marks, thickness and warping of the silicon wafers, improves the quality of the silicon wafers, and improves the work efficiency and work quality.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A device for measuring the diagonal wire mesh in photovoltaic slicing includes a right-angle ruler that cooperates with a roller path. The right-angle ruler includes a horizontal plate and a vertical plate that are perpendicular to each other. A pair of parallel chutes are provided on the horizontal plate of the right-angle ruler. One end of each chute is provided with an opening. A coaxial telescopic measuring ruler is connected in each chute. The telescopic measuring ruler extends out of the chute from the opening along the axis. The lower surface of the horizontal plate is attached to the upper surfaces of the two roller paths, and the inner surface of the vertical plate is attached to the side surfaces of the roller paths. And the end of the telescopic measuring ruler abuts against the connection between the roller path and the bearing seat to form a standard xyz-axis three-dimensional rectangular coordinate system to ensure the stability of the measurement.

[0007] Further, the axis of the sliding groove is arranged parallel to the connection part of the horizontal plate and the vertical plate.

[0008] Further, the telescopic measuring ruler is provided with inclined scale lines, and the inclination angle of the scale lines is consistent with the inclination angle of the diagonal line network.

[0009] Further, the two opposite short sides of the horizontal plate are parallel to each other, and the length of the short side closer to the vertical plate is less than the length of the short side away from the vertical plate.

[0010] Further, the length of the short side of the horizontal plate closer to the vertical plate is 5 mm less than the length of the short side on the other side.

[0011] Further, the two opposite long sides of the horizontal plate are arranged at a certain angle, the long side closer to the opening is perpendicular to the short side of the horizontal plate, and the other long side is inclined.

[0012] In the technical solution of the present utility model, by setting the measuring ruler as a telescopic structure, the right-angle ruler is driven to translate on the roller path by the expansion and contraction of the measuring ruler, and a stable and reliable xyz-axis right-angle coordinate system structure is formed by the right-angle ruler and the measuring ruler, saving the time for confirming the diagonal line network for the first knife after replacing the guide wheel of each slicing machine and when re-laying the wire network after the head wire break, greatly reducing the diagonal line network errors caused by human factors, thereby reducing the phenomena of wire marks, thickness, warping, etc. on the silicon wafer, reducing the defective ratio at the slicing end, shortening the switching time at the slicing end, and being beneficial to the company's cost reduction and efficiency improvement. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the device for measuring the diagonal line network of photovoltaic slicing of the present utility model;

[0014] Figure 2 is a top view of the device for measuring the diagonal line network of photovoltaic slicing of the present utility model;

[0015] Figure 3 is a schematic diagram of the cooperation between the device for measuring the diagonal line network of photovoltaic slicing of the present utility model and the roller path;

[0016] Figure 4 is a cross-sectional view of the cooperation between the device for measuring the diagonal line network of photovoltaic slicing of the present utility model and the roller path. Detailed Embodiments Embodiment

[0017] To make the present utility model clearer and more understandable, the following further describes a device for measuring the diagonal line network of photovoltaic slicing of the present utility model in conjunction with the drawings. The specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0018] Refer toFigure 1 , Figure 3 and Figure 4 , a device for measuring the diagonal wire mesh of photovoltaic wafers, comprising a right-angle ruler 1 cooperating with a roller path 3, characterized in that:

[0019] The right-angle ruler 1 includes a horizontal plate 11 and a vertical plate 12 that are perpendicular to each other. A pair of parallel chutes 11a are provided on the horizontal plate 11 of the right-angle ruler 1, and the axis of the chute 11a is arranged parallel to the connection between the horizontal plate 11 and the vertical plate 12;

[0020] One end of the chute 11a is provided with an opening 11b. A coaxial telescopic measuring ruler 2 is connected in each chute 11a. The telescopic measuring ruler 2 extends out of the chute 11a from the opening 11b along the axis. An inclined scale line 21 is provided on the telescopic measuring ruler 2, and the inclination angle of the scale line 21 is kept consistent with the inclination angle of the diagonal wire mesh;

[0021] The lower surface of the horizontal plate 11 is attached to the upper surfaces of the two roller paths 3, and the inner surface of the vertical plate 12 is attached to the side surface of the roller path 3. Moreover, the end of the telescopic measuring ruler 2 abuts against the connection 5 between the roller path 3 and the bearing seat 4, so as to form a standard three-dimensional rectangular coordinate system of the xyz axes and ensure the stability of the measurement.

[0022] In this embodiment, referring to Figure 2 , the two opposite short sides of the horizontal plate 11 are parallel to each other, and the short side close to the vertical plate 12 has a length of 140 mm, and the short side far from the vertical plate 12 has a length of 145 mm.

[0023] In this embodiment, the two opposite long sides of the horizontal plate 11 are not parallel, and the long side close to the opening 11b is perpendicular to the short side of the horizontal plate 11, and its length is 380 mm.

[0024] In this embodiment, the telescopic measuring ruler can be pulled out a certain distance according to the actual situation. When necessary, a connecting rod structure can also be added to fix and link the two telescopic measuring rulers so that they always maintain the same pulled-out distance.

[0025] The device of the present utility model can effectively reduce the measurement deviation, improve the measurement accuracy, save the operation time, avoid the occurrence of defective silicon wafers, improve the product quality, reduce the defective ratio at the slicing end, shorten the switching time at the slicing end, and is beneficial to the cost reduction and efficiency increase of the company.

[0026] In addition to the above embodiments, the present utility model can also have other implementation manners. All technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present utility model.

Claims

1. A device for measuring a diagonal network of photovoltaic slices, comprising a square ruler (1) matched with a roller table (3), characterized in that: The square ruler (1) comprises a horizontal plate (11) and a vertical plate (12) which are perpendicular to each other. A pair of parallel slide grooves (11a) are provided on the horizontal plate (11) of the square ruler (1). An opening (11b) is provided at one end of the slide groove (11a). A coaxial telescopic measuring ruler (2) is connected in each slide groove (11a). The telescopic measuring ruler (2) extends out of the slide groove (11a) from the opening (11b) along the axis. The lower surface of the horizontal plate (11) is in contact with the upper surfaces of the two rollers (3). The inner surface of the vertical plate (12) is in contact with the side surface of the rollers (3). The end of the telescopic measuring ruler (2) is against the connection (5) between the rollers (3) and the bearing seat (4).

2. The device for measuring the oblique line network of photovoltaic slices according to claim 1, characterized in that: The axis of the slide groove (11a) is arranged parallel to the connection between the horizontal plate (11) and the vertical plate (12).

3. The device for measuring the oblique line network of photovoltaic slices according to claim 1 or 2, characterized in that: The telescopic measuring ruler (2) is provided with inclined scale lines (21), and the inclination angle of the scale lines (21) is consistent with the inclination angle of the oblique line network.

4. The device for measuring the oblique line network of photovoltaic slices according to claim 1 or 2, characterized in that: The two opposite short sides of the horizontal plate (11) are parallel to each other, and the length of the short side on the side close to the vertical plate (12) is shorter than the length of the short side on the side away from the vertical plate (12).

5. The device for measuring the oblique line network of photovoltaic slices according to claim 4, characterized in that: The length of the short side of the horizontal plate (11) on one side close to the vertical plate (12) is 5 mm shorter than the length of the short side on the other side.

6. The device for measuring the oblique line network of photovoltaic slices according to claim 5, characterized in that: The long side of the horizontal plate (11) close to the opening (11b) is perpendicular to the short side of the horizontal plate (11), and the long side of the other side is arranged at an angle.

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