Gripper device with function of detecting front and back surfaces of photovoltaic glass on line

Abstract

The utility model discloses a gripper device with a function of detecting front and back surfaces of photovoltaic glass on line, which comprises a gripper frame and a sucker component arranged below the gripper frame, the suction cup assembly comprises a plurality of first suction cup assemblies for sucking photovoltaic glass and a second suction cup assembly which is arranged in the center of the gripper frame, is aligned with the center of the photovoltaic glass and is used for detecting the front face and the back face of the photovoltaic glass. In the process of sucking and carrying the photovoltaic glass in vacuum, whether the photovoltaic glass is front glass or back glass is judged by judging whether the second suction cup assembly is sucked to the center of the photovoltaic glass in vacuum and can reach a set negative pressure value or not. The gripper device provided by the utility model can detect the front and back surfaces of the photovoltaic glass while carrying the photovoltaic glass, not only is simple in structure, but also is simple in detection mode and does not have detection errors.

Description

[Technical field]

[0001] The utility model belongs to the technical field of photovoltaic component glass detection, in particular to a gripper device with the function of online detection of the front and back sides of photovoltaic glass. [Background technology]

[0002] During the production process of photovoltaic modules, glass is assembled on both sides of the cell. The glass assembled on the front of the cell is called the front glass, and the glass assembled on the back of the cell is called the back glass. A hole is set in the center of the back glass to facilitate the connection between the junction box and the cell, while the front glass has no hole. The rest of the appearance is very similar. Therefore, it is easy for operators to confuse the front glass and the back glass during production on the production line, and there is a risk of misplacing the material when loading. If the front and back are used incorrectly, the photovoltaic module will be directly scrapped, resulting in loss of production capacity and low production efficiency.

[0003] Therefore, technicians consider adding a glass front and back detection device at the glass feeding end to completely avoid waste caused by incorrect use of photovoltaic glass. For example, a photovoltaic glass front and back detection device disclosed in patent publication number CN207268710U includes a photoelectric sensor and a photoelectric signal processing unit. The photoelectric sensor is arranged on the assembly line to perform photoelectric detection on the photovoltaic glass on the assembly line and send the signal to the photoelectric signal processing unit. The photoelectric signal processing unit is connected to an audible and visual alarm device for alarm. Although this technical solution can realize the detection of the front and back of photovoltaic glass, there are still two problems in this solution:

[0004] (1) A separate workstation is required to install the detection device, which takes up space;

[0005] (2) A reflective photoelectric transmitter is used to reflect the light signal, which is reflected by the glass and received by the photoelectric receiver and sent to the photoelectric signal processing unit. The photoelectric signal processing unit amplifies the received light signal and compares it with the threshold set inside. Since the front glass is glossy and the back glass is velvet, there is a clear difference in the light reflection between the glossy and velvet surfaces. When the signal strength is less than the threshold, it is judged to be the back glass. When the signal strength is greater than the threshold, it is judged to be the front glass. The detection of the front and back sides of the glass by signal judgment is cumbersome and may result in judgment errors.

[0006] Therefore, it is necessary to provide a gripper device with the function of online detection of the front and back sides of photovoltaic glass to solve the above technical problems. [Contents of the utility model]

[0007] The main purpose of the utility model is to provide a gripper device with the function of online detection of the front and back sides of photovoltaic glass, which can detect the front and back sides of photovoltaic glass while transporting the photovoltaic glass. Not only is the structure simple, but the detection method is also simple and there is no detection error.

[0008] The utility model achieves the above-mentioned purpose through the following technical scheme: a gripper device with the function of online detection of the front and back sides of photovoltaic glass, which includes a gripper frame, a suction cup assembly arranged below the gripper frame, the suction cup assembly includes a plurality of first suction cup assemblies for sucking photovoltaic glass and a second suction cup assembly arranged at the center of the gripper frame and aligned with the center of the photovoltaic glass for detecting the front and back sides of the photovoltaic glass. During the process of vacuum suction and transportation of the photovoltaic glass, whether the second suction cup assembly can reach a set negative pressure value by vacuum adsorbing on the center of the photovoltaic glass to determine whether the photovoltaic glass is front glass or back glass.

[0009] Furthermore, the grab frame includes a mounting plate and support rods fixed below the mounting plate and staggeredly distributed in the horizontal and vertical directions.

[0010] Furthermore, the first suction cup assembly includes a driving member fixed on the support rod, a first support frame driven by the driving member to move up and down, and a first suction cup installed on the first support frame.

[0011] Furthermore, the second suction cup assembly includes a second support frame fixed on the support rod and a second suction cup fixed below the second support frame.

[0012] Furthermore, a negative pressure gauge is provided on the mounting plate, and the negative pressure gauge is connected to the first suction cup and the second suction cup.

[0013] Compared with the prior art, the utility model has the beneficial effect of a gripper device with the function of online detection of the front and back sides of photovoltaic glass: the gripper device includes a gripper frame, a suction cup assembly arranged below the gripper frame, the suction cup assembly includes a plurality of first suction cup assemblies for sucking the photovoltaic glass and a second suction cup assembly arranged at the center of the gripper frame and aligned with the center of the photovoltaic glass for detecting the front and back sides of the photovoltaic glass. In the process of vacuum suction and transportation of the photovoltaic glass, the second suction cup assembly is vacuum adsorbed on the center of the photovoltaic glass to determine whether the photovoltaic glass is the front glass or the back glass. In the process of transportation, it is detected online whether the photovoltaic glass is the front glass or the back glass, and there is no need to set up a separate detection device, which occupies a small space; and only a second suction cup assembly is added at the center of the gripper frame, which is not only simple in structure, but also simple in the method of negative pressure detection, and there is no detection error in the method of negative pressure judgment. Therefore, compared with the prior art, the gripper device provided by the present scheme can detect the front and back sides of the photovoltaic glass while transporting the photovoltaic glass, which is not only simple in structure, but also simple in the method of detection and no detection error.

Brief Description of the Drawings

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the gripper device of the utility model embodiment;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the gripper device of the utility model embodiment;

[0016] Figure 3 This is a schematic diagram of the top view of the gripper device of the utility model embodiment;

[0017] Figure 4 This is a schematic diagram of the main structure of the gripper device of the utility model embodiment;

[0018] Figure 5 This is a side structural diagram of a gripper device according to an embodiment of the utility model;

[0019] The numbers in the figure represent:

[0020] 100-gripper device;

[0021] 1-grip frame, 11-mounting plate, 12-support rod;

[0022] 2-suction cup assembly, 21-first suction cup assembly, 211-driving member, 212-first supporting frame, 213-first suction cup, 22-second suction cup assembly, 221-second supporting frame, 222-second suction cup;

[0023] 3- Negative pressure gauge. [Specific implementation method]

[0024] Please refer to Figure 1-Figure 5The present embodiment is a gripper device with the function of online detection of the front and back sides of photovoltaic glass. The gripper device 100 is used to carry and detect the back glass with a hole in the center and the front glass without a hole in the center. The gripper device 100 includes a gripper frame 1 and a suction cup assembly 2 arranged below the gripper frame 1. The suction cup assembly 2 includes a plurality of first suction cup assemblies 21 for sucking the photovoltaic glass and a second suction cup assembly 22 arranged at the center of the gripper frame 1 and aligned with the center of the photovoltaic glass for detecting the front and back sides of the photovoltaic glass. In the process of vacuum suction and transportation of the photovoltaic glass, the second suction cup assembly 2 is vacuum adsorbed on the center of the photovoltaic glass to detect whether the set negative pressure value can be reached to determine whether the photovoltaic glass is the front glass or the back glass.

[0025] The gripping frame 1 comprises a mounting plate 11 and support rods 12 fixed below the mounting plate and staggeredly distributed in the horizontal and vertical directions.

[0026] The first suction cup assembly 21 includes a driving member 211 fixed on the support rod 12, a first support frame 212 fixed on the output end of the driving member 211 and driven by the driving member 211 to move up and down, and a first suction cup 213 installed on the first support frame 212. After the gripper device 100 moves into position, the first suction cup assemblies 21 arranged in the middle area of ​​the gripper frame 1 are not provided with driving members, and the first suction cup 213 is directly in contact with the surface of the photovoltaic glass, which can facilitate the separation of the suction cup 213 from the photovoltaic glass when the glass is put down; the first suction cup assemblies 21 arranged at both ends of the gripper frame 1 are driven by the driving member 211 to contact and resist the photovoltaic glass, vacuumize and adsorb the photovoltaic glass, and then transport it to the production line, which can improve the stability of the suction cup adsorbing the photovoltaic glass.

[0027] The second suction cup assembly 22 includes a second support frame 221 fixed on the support rod 12 and a second suction cup 222 fixed under the second support frame 221. The second suction cup assembly 22 is not provided with a driving member, and the second suction cup 222 is in direct contact with the surface of the photovoltaic glass, so that the second suction cup 222 can be easily separated from the photovoltaic glass when the photovoltaic glass is lowered.

[0028] A negative pressure gauge 3 is provided on the mounting plate 11 and is connected to the first suction cup 213 and the second suction cup 222. If there is no seal under the suction cup and the set negative pressure value cannot be reached, the negative pressure gauge 3 will give an alarm.

[0029] Since there is a hole in the center of the back glass and no hole in the center of the front glass, when the gripper device 100 is set to vacuum absorb the photovoltaic glass, the second suction cup 222 of the second suction cup assembly 22 faces the center of the photovoltaic glass. During the vacuum absorption process, if the negative pressure gauge 3 connected to the second suction cup cannot reach the set negative pressure value, the negative pressure gauge 3 will alarm, indicating that the back glass with a hole in the center is being sucked at this time; if the negative pressure gauge 3 connected to the second suction cup can reach the set negative pressure value, the negative pressure gauge 3 is normal, indicating that the front glass without a hole in the center is being sucked at this time. This detection method is simple, and does not require a separate detection device, and can be directly set on the gripper device.

[0030] When the gripper device 100 provided in the present solution is used, when the photovoltaic glass needs to be transported to the production line, the robotic arm (not shown in the figure) drives the gripper device 100 to move to the top of the photovoltaic glass. After moving into position, the first suction cup assembly 21 and the second suction cup assembly 22 are both evacuated, and the first suction cup of the first suction cup assembly 21 adheres to the surface of the photovoltaic glass. During the vacuum suction and transportation process of the gripper device 100, it can be determined whether it is the front glass or the back glass by whether the negative pressure gauge 3 connected to the second suction cup reaches the set negative pressure value. If the set negative pressure value cannot be reached, the negative pressure gauge 3 will alarm, which means that the back glass with a hole in the center is being sucked at this time; if the negative pressure gauge 3 connected to the second suction cup can reach the set negative pressure value, the negative pressure gauge 3 is normal, which means that the front glass without a hole in the center is being sucked at this time.

[0031] The present invention provides a gripper device with the function of online detection of the front and back sides of photovoltaic glass. The gripper device 100 includes a gripper frame 1, a suction cup assembly 2 arranged below the gripper frame 1, and the suction cup assembly 2 includes a plurality of first suction cup assemblies 21 for sucking photovoltaic glass and a second suction cup assembly 22 arranged at the center of the gripper frame 1 and aligned with the center of the photovoltaic glass for detecting the front and back sides of the photovoltaic glass. During the process of vacuum suction and transportation of photovoltaic glass, the second suction cup assembly 2 is vacuum adsorbed on the center of the photovoltaic glass to determine whether the photovoltaic glass is the front glass or the back glass. During the transportation process, it is detected online whether the photovoltaic glass is the front glass or the back glass. There is no need to set up a separate detection device, and the space occupied is small. Moreover, only a second suction cup assembly 22 is added at the center of the gripper frame 1. Not only is the structure simple, but also the method of negative pressure detection is simple, and there is no detection error in the method of negative pressure judgment. Therefore, compared with the prior art, the gripper device 100 provided by the present invention can detect the front and back sides of photovoltaic glass while transporting photovoltaic glass. Not only is the structure simple, but also the detection method is simple and there is no detection error.

[0032] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A gripper device with the function of online detection of the front and back sides of photovoltaic glass, which is used to carry and detect the back glass with a hole in the center and the front glass without a hole in the center, characterized in that: It includes a gripper frame and a suction cup assembly arranged below the gripper frame. The suction cup assembly includes a plurality of first suction cup assemblies for sucking photovoltaic glass and a second suction cup assembly arranged at the center of the gripper frame and aligned with the center of the photovoltaic glass for detecting the front and back sides of the photovoltaic glass. During the process of vacuum suction and transportation of the photovoltaic glass, whether the second suction cup assembly can reach a set negative pressure value by vacuum adsorbing on the center of the photovoltaic glass can be used to determine whether the photovoltaic glass is front glass or back glass.

2. A gripper device with the function of online detection of the front and back sides of photovoltaic glass as claimed in claim 1, characterized in that: The gripping frame comprises a mounting plate and supporting rods which are fixed below the mounting plate and are staggered in the horizontal and vertical directions.

3. A gripper device with the function of online detection of the front and back sides of photovoltaic glass as claimed in claim 2, characterized in that: The first suction cup assembly includes a driving member fixed on the support rod, a first support frame driven by the driving member to move up and down, and a first suction cup installed on the first support frame.

4. A gripper device with the function of online detection of the front and back sides of photovoltaic glass as claimed in claim 3, characterized in that: The second suction cup assembly includes a second support frame fixed on the support rod and a second suction cup fixed below the second support frame.

5. A gripper device with the function of online detection of the front and back sides of photovoltaic glass as claimed in claim 4, characterized in that: A negative pressure gauge is provided on the mounting plate, and the negative pressure gauge is connected to the first suction cup and the second suction cup.

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