Silicon rod end face detection device

Abstract

The utility model belongs to the field of automation, and discloses a silicon rod end face detection device. Comprising a detection frame body, and the two sides of the detection frame body are each provided with a servo module; a contour scanner is arranged on each servo module, a conveying roller way used for conveying and placing workpieces is arranged at the front end of the detection frame body, a lifting and positioning mechanism used for lifting and positioning the workpieces is arranged below the conveying roller way, and a plurality of positioning plates used for positioning the workpieces are arranged on the lifting and positioning mechanism. The positioning plate is driven by the lifting assembly to movably penetrate through a roller way gap of the conveying roller way; and each servo module is provided with an execution mechanism. The overall condition of the end face can be detected, the detection result is more accurate, and the splicing qualified rate of the next procedure is guaranteed. The operation is simple, the overall manufacturing cost is low, and the cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of automation and relates to a silicon rod end face detection device. Background Art

[0002] In the field of automation in the photovoltaic industry, round silicon rods need to be cut into square rods after being cut. For short round silicon rods whose length does not meet the requirements produced by the cutting station, gluing and splicing before entering the machine tool is a process approach to meet the rod length requirements. For the two round rod end faces that need to be spliced, the diameters must match, the flatness of the two end faces must not exceed the process requirements, the verticality of the two end faces to their respective axes must not exceed the process requirements, and the two end faces must not be uncut. Otherwise, gluing and splicing cannot be performed. One of the existing silicon rod end face detection devices uses a laser sensor to detect the position, but this generally detects 4-6 points, and it is impossible to detect points other than the detection points. It is difficult to detect convexities and concave areas, and it cannot be completely detected in place; another existing silicon rod end face detection device is to detect through an industrial camera, but the industrial camera detection is greatly affected by the light source. When used specifically, the shadow it produces has a great impact on the detection, and the silicon rod has reflections due to the frosted glass state of the end face, resulting in deviations in the detection results, and the overall cost of the industrial camera is high. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the above-mentioned background technology, to solve the problem of unqualified silicon rods flowing into the gluing station; to provide a silicon rod end face detection device, which can detect the overall situation of the end face, and the detection result is more accurate, ensuring the splicing qualification rate of the next process. It is simple to operate, low in overall cost, and reduces costs.

[0004] The utility model solves the technical problem by adopting the following technical solution: a silicon rod end face detection device comprises a detection frame, a servo module is arranged on each side of the detection frame; a contour scanner is arranged on each servo module, a conveying roller for conveying and placing workpieces is arranged at the front end of the detection frame, a lifting and positioning mechanism for lifting and positioning the workpieces is arranged under the conveying roller, a plurality of positioning plates for positioning the workpieces are arranged on the lifting and positioning mechanism, and the positioning plates can be movably inserted into the roller gap of the conveying roller when driven by a lifting assembly; each servo module is equipped with an actuator.

[0005] The lifting and positioning mechanism includes a lifting assembly, which includes a lifting cylinder, a lifting plate is arranged above the lifting cylinder, a lifting top plate is arranged above the lifting plate, the lifting plate and the lifting top plate are connected by guide columns, the top of the guide columns is fixed to the bottom surface of the lifting top plate, and a plurality of positioning plates for placing and positioning the center of the workpiece are arranged on the lifting top plate; the front end of the cylinder rod of the lifting cylinder is connected to the bottom surface of the lifting top plate through a connecting piece.

[0006] A bearing is arranged at the connection between the guide column and the lifting plate.

[0007] The positioning plate is a vertical plate with a V-shaped top. When working, the lifting assembly can drive the vertical plate with a V-shaped top to pass through the roller gap of the conveyor roller to lift the workpiece and locate the center of the workpiece.

[0008] The lifting and positioning mechanism also includes a lifting frame.

[0009] The lifting cylinder is fixed on the lifting frame through the cylinder bracket.

[0010] The conveying roller is provided with a shooting switch for detecting whether the workpiece is in place.

[0011] The actuator is a servo motor, and the output end of the servo motor is connected to the servo module.

[0012] The profile scanner is connected to the slide plate of the servo module through a profile scanner fixing bracket.

[0013] A limit switch for limiting the position of the contour scanner is arranged on the contour scanner fixing bracket.

[0014] Adjustment feet are arranged at the bottom of the detection frame.

[0015] The silicon rod end face detection device is also equipped with a PLC control system. The servo motor, servo module, beam switch, conveyor roller, profile scanner, lifting cylinder, and limit switch are respectively connected to the PLC control system, and are not limited to a specific model, as long as their working functions are realized.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model provides a silicon rod end face detection device, which can detect the overall situation of the end face, and the detection result is more accurate, which guarantees the splicing qualification rate of the next process. It is simple to operate, low in overall cost, and reduces the cost. The contour scanner works in conjunction with the servo module to scan the correct image of the silicon rod end face, which improves the qualification rate of the next process of gluing and splicing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 The utility model is a schematic structural diagram of a silicon rod end face detection device.

[0020] Figure 2 The utility model is a schematic diagram of the working state of a silicon rod end face detection device.

[0021] In the figure, 1. conveyor roller, 2. lifting positioning mechanism, 3. detection frame, 4. servo module, 5. contour scanner, 6. adjustment foot, 7. lifting cylinder, 8. guide column, 9. positioning plate, 10. limit switch. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0023] Example 1

[0024] A silicon rod end face detection device, such as Figure 1-2 As shown, it includes a detection frame 3, and a servo module 4 is arranged on each side of the detection frame 3; a contour scanner 5 is arranged on each servo module 4, and a conveyor roller 1 for conveying and placing workpieces is arranged at the front end of the detection frame 3, and a lifting and positioning mechanism 3 for lifting and positioning the workpiece is arranged under the conveyor roller 1, and a plurality of positioning plates 9 for positioning the workpiece are arranged on the lifting and positioning mechanism 2, and the positioning plates 9 can be movably inserted into the roller gap of the conveyor roller 1 under the drive of the lifting assembly; each servo module 4 is equipped with an actuator.

[0025] The lifting and positioning mechanism 2 includes a lifting assembly, which includes a lifting cylinder 7, a lifting plate is arranged above the lifting cylinder 7, a lifting top plate is arranged above the lifting plate, the lifting plate and the lifting top plate are connected by a guide column 8, the top of the guide column 8 is fixed to the bottom surface of the lifting top plate, and a plurality of positioning plates 9 for placing and positioning the center of the workpiece are arranged on the lifting top plate; the front end of the cylinder rod of the lifting cylinder 7 is connected to the bottom surface of the lifting top plate through a connecting piece.

[0026] A bearing is provided at the connection between the guide column 8 and the lifting plate.

[0027] The positioning plate 9 is a vertical plate with a V-shaped top. When working, the lifting assembly can drive the vertical plate with a V-shaped top to pass through the roller gap of the conveyor roller 1 to lift the workpiece and locate the center of the workpiece.

[0028] The lifting and positioning mechanism 2 also includes a lifting frame.

[0029] The lifting cylinder 7 is fixed on the lifting frame through a cylinder bracket.

[0030] The conveyor roller 1 is provided with a beam switch for detecting whether the workpiece is in place.

[0031] The actuator is a servo motor, and the output end of the servo motor is connected to the servo module 4 .

[0032] The profile scanner 5 is connected to the slide plate of the servo module 4 via a profile scanner fixing bracket.

[0033] A limit switch 10 for limiting the position of the profile scanner 5 is arranged on the profile scanner fixing bracket.

[0034] An adjustment foot 6 is provided at the bottom of the detection frame 3 .

[0035] The silicon rod end face detection device is also equipped with a PLC control system. The servo motor, servo module 4, beam switch, conveyor roller 1, contour scanner 5, lifting cylinder 7, and limit switch 10 are respectively connected to the PLC control system, and are not limited to a specific model, as long as their working functions are realized.

[0036] During specific operation, the conveyor roller 1 delivers the short silicon rods cut in the previous process to the top of the lifting and positioning mechanism 2, and the shooting switch feedback signal, the roller on the conveyor roller 1 stops conveying, and the lifting cylinder 7 starts working. The cylinder rod of the lifting cylinder 7 drives the positioning plate 9 on the lifting top plate to move upward to lift and position the short silicon rod. The center of the short silicon rod is located by the vertical plate with a V-shape on the top. At this time, the servo motor drives the servo module 4 to drive the profile scanner 5 to move horizontally along the end face of the silicon rod. The profile scanner 5 uses the scanned end face distance parameters and the horizontal displacement parameter feedback signal fed back by the encoder of the servo module 4 to obtain a three-dimensional image of the end face. Then, according to the judgment criteria determined in advance, the unqualified end faces are judged. Unqualified short silicon rods are eliminated.

[0037] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A silicon rod end face detection device, characterized in that: The invention comprises a detection frame (3), a servo module (4) is arranged on each side of the detection frame (3); a contour scanner (5) is arranged on each servo module (4); a conveying roller (1) for conveying and placing workpieces is arranged at the front end of the detection frame (3); a lifting and positioning mechanism (2) for lifting and positioning the workpieces is arranged below the conveying roller (1); a plurality of positioning plates (9) for positioning the workpieces are arranged on the lifting and positioning mechanism (2); the positioning plates (9) can be movably inserted into the roller gap of the conveying roller (1) under the drive of the lifting component; and each servo module (4) is equipped with an actuator.

2. A silicon rod end face detection device as claimed in claim 1, characterized in that The positioning mechanism (2) comprises a lifting assembly, which comprises a lifting cylinder (7), a lifting plate is arranged above the lifting cylinder (7), a lifting top plate is arranged above the lifting plate, the lifting plate and the lifting top plate are connected via a guide column (8), the top of the guide column (8) is fixed to the bottom surface of the lifting top plate, and a plurality of positioning plates (9) for placing the center of a positioning workpiece are arranged on the lifting top plate; the front end of the cylinder rod of the lifting cylinder (7) is connected to the bottom surface of the lifting top plate via a connecting piece.

3. A silicon rod end face detection device as claimed in claim 1, characterized in that: The conveying roller (1) is provided with a beam switch for detecting that the workpiece is in place.

4. A silicon rod end face detection device as claimed in claim 1, characterized in that: The actuator is a servo motor, and the output end of the servo motor is connected to the servo module (4).

5. A silicon rod end face detection device as claimed in claim 1, characterized in that: The profile scanner (5) is connected to the slide plate of the servo module (4) via a profile scanner fixing bracket.

6. A silicon rod end face detection device as claimed in claim 1, characterized in that: Adjustment feet (6) are arranged at the bottom of the detection frame (3).

7. A silicon rod end face detection device as claimed in claim 2, characterized in that: A bearing is arranged at the connection between the guide column (8) and the lifting plate.

8. A silicon rod end face detection device as claimed in claim 2, characterized in that: The positioning plate (9) is a vertical plate with a V-shaped top.

9. A silicon rod end face detection device as claimed in claim 2, characterized in that: The lifting and positioning mechanism (2) also includes a lifting frame.

10. A silicon rod end face detection device as claimed in claim 9, characterized in that: The lifting cylinder (7) is fixed on the lifting frame through a cylinder bracket.

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