A device for detecting a snail

Abstract

The utility model discloses a kind of tinoma detection devices, belong to photovoltaic welding strip tinning machine production technical field.The device includes: support (4);Air claw (3), by first screw (41) is installed on the support (4);Two mounting plates (2), respectively by second screw (21) are installed in the two output ends (31) of the air claw (3);Two pieces of tumor clamping plate (1), respectively by third screw (11) are installed on the mounting plate (2);Wherein, first long hole (22) is respectively set up on the two mounting plates (2), and the second screw (21) passes through the first long hole (22) and fixes the two mounting plates (2) in the two output ends (31) of the air claw (3).

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic soldering strip tin plating machine production technology, specifically relating to a tin nodule detection device. Background Technology

[0002] As a key connecting material in photovoltaic modules, photovoltaic solder ribbon directly affects the output efficiency and long-term reliability of photovoltaic modules. With the rapid development of photovoltaic technology, especially the popularization of advanced technologies such as SMBB (Multi-Grid Battery) and OBB (Obstacle-less Battery), photovoltaic solder ribbon is developing towards finer wire diameters and higher conductivity. Currently, the wire diameter of mainstream SMBB solder ribbon has dropped to below 0.30mm, while the wire diameter of solder ribbon for OBB technology is required to be below 0.20mm. Under this trend, in order to meet market demands for shipment volume, the operating speed of tin-plating production lines for photovoltaic solder ribbon production must be continuously increased. However, the finer the wire diameter and the faster the speed, the more stringent the requirements for online inspection of the surface quality of the tin-plated wire (especially tin nodules) become. The presence of tin nodules can lead to a series of quality problems such as cell fragmentation and poor soldering. Therefore, efficient and reliable tin nodule detection has become a key link in ensuring product quality.

[0003] Currently, most traditional solder nodule detection devices in the industry use fixed fixtures. Specifically, there are two main types: one is to machine a fixed gap matching the target wire diameter into a rigid plate; the other is to use two plates fixed together with bolts, forming a fixed detection gap in the middle. The wire continuously passes through this gap during production, and if a solder nodule is present, it will be jammed, triggering an alarm.

[0004] However, the aforementioned traditional detection devices have the following inherent drawbacks: The operation is extremely inconvenient: Because the fixture is a completely fixed structure, when starting the equipment, threading the lead wire, changing product specifications, or performing maintenance, the operator must manually disassemble the entire fixture, and then reinstall and fix it after the threading is completed. This process is not only cumbersome, time-consuming, and labor-intensive, seriously affecting production efficiency, but also prone to damage to the fixture or a decrease in positioning accuracy during frequent assembly and disassembly.

[0005] Poor versatility and high cost: Each fixed gap fixture can only be used with one specific wire diameter. When the production line needs to change to a different specification of product, it must be stopped and the corresponding inspection fixture replaced. This requires companies to prepare a large number of fixtures of different specifications in advance, which not only increases the purchase cost but also brings cumbersome fixture management and replacement operations, making it unable to meet the needs of modern production lines for flexibility and rapid changeover.

[0006] Therefore, there is an urgent need in this field for a new type of tin nodule detection device that can overcome the above-mentioned defects. It should be able to achieve rapid and automated detection and have good versatility to adapt to the high-speed and multi-specification modern production pace. Utility Model Content

[0007] The technical problem this invention aims to solve is to address the shortcomings of the prior art by providing a tin nodule detection device. This device employs an automatically controllable pneumatic gripper as a drive source, directly driving two nodule-catching plates to open and close. By controlling the airflow, the device can switch between "open threading" and "closed detection" states, eliminating the need for manual fixture assembly and disassembly, thus greatly improving operational efficiency.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A tin nodule detection device, characterized in that it comprises: support; The pneumatic gripper is mounted on the bracket by the first screw; Two mounting plates are respectively installed on the two output ends of the pneumatic gripper using the second screw; Two retaining plates are respectively installed on the mounting plate using a third screw; The two mounting plates are each provided with a first elongated hole, and the second screw passes through the first elongated hole to fix the two mounting plates to the two output ends of the pneumatic gripper.

[0009] Furthermore, the tin nodule detection device is characterized in that: a second elongated hole is provided on the bracket, and the first screw passes through the second elongated hole to fix the pneumatic gripper.

[0010] Furthermore, the tin nodule detection device is characterized in that: the mounting plate is a bakelite board.

[0011] Furthermore, the tin nodule detection device is characterized in that: the mounting plate is a fiberglass board.

[0012] Furthermore, the aforementioned tin nodule detection device is characterized in that: the pneumatic gripper is a double-acting parallel pneumatic gripper.

[0013] Furthermore, the tin nodule detection device is characterized in that the nodule plate is a ceramic plate.

[0014] This utility model has the following advantages compared with the prior art: 1. The opening and closing of the pneumatic gripper can be controlled by an external program. It can be opened during non-inspection periods such as threading to avoid interference; and closed during production to perform inspection, thereby improving production efficiency.

[0015] 2. The gap between the two clamping plates can be easily adjusted by the elongated holes on the mounting plate and bracket, so as to accurately fit wires of different diameters.

[0016] 3. The device consists of a few parts such as a bracket, pneumatic grippers, mounting plate, and clamping plate. It has a compact structure, reliable operation, is easy to install and modify on existing production lines, and is easy to maintain.

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the tin nodule detection device provided by this utility model.

[0019] Figure 2 The front view of the tin nodule detection device provided by this utility model after installation.

[0020] Figure 3 This is a usage scenario diagram of the tin nodule detection device provided by this utility model.

[0021] Figure 4 The structural diagram of the pneumatic gripper provided by this utility model.

[0022] Figure 5 This is a schematic diagram showing the open and closed state of the pneumatic gripper provided by this utility model.

[0023] Explanation of reference numerals in the attached figures: 1. Grip plate; 11. Third screw; 2. Mounting plate; 21. Second screw; 22. First elongated hole; 3. Pneumatic gripper; 31. Output end; 4. Bracket; 41. First screw; 42. Second elongated hole. Detailed Implementation

[0024] like Figures 1 to 3 The image shown is a specific embodiment of a tin nodule detection device provided by this utility model.

[0025] The tin nodule detection device mainly includes a support 4, a pneumatic gripper 3, two mounting plates 2, and two nodule-catching plates 1.

[0026] The bracket 4 serves as the basic support structure for the entire device and can be fixed to automated equipment or a workbench through its mounting holes. The bracket 4 has a second elongated hole 42.

[0027] The pneumatic gripper 3 is mounted on the bracket 4 by a first screw 41. Specifically, the first screw 41 passes through the second elongated hole 42 on the bracket 4 to fix the pneumatic gripper 3.

[0028] In use, by loosening the first screw 41, the pneumatic gripper 3 can move along the length of the second elongated hole 42, thereby adjusting its lateral installation position; after adjustment, tightening the first screw 41 will securely lock the pneumatic gripper 3 onto the bracket 4.

[0029] The pneumatic gripper 3 has two output ends 31 that can move closer to or further away from each other. Each output end 31 is connected to a mounting plate 2. Specifically, the mounting plate 2 is mounted on the output end 31 by a second screw 21 and a first elongated hole 22 formed thereon.

[0030] By loosening the second screw 21, the mounting plate 2 can move along the length of the first elongated hole 22 to fine-tune its connection position with the pneumatic gripper 3; after adjustment, tighten the second screw 21 to complete the fixation.

[0031] The two mounting plates 1 are respectively installed and fixed on the two mounting plates 2 by the third screw 11.

[0032] The pneumatic gripper 3 is preferably a double-acting parallel pneumatic gripper, such as... Figure 4 As shown. The two output ends 31 of this type of pneumatic gripper can perform precise, synchronous parallel opening and closing movements under pneumatic drive, such as... Figure 5 As shown, this ensures that the two card plates 1 installed on it always move in parallel, thus forming a uniform and stable detection channel when closed.

[0033] The pneumatic gripper 3 is connected to the output port of the solenoid valve via two air paths. The air inlet of the solenoid valve is connected to the factory air source and passes through a filter and pressure reducing valve to ensure that the compressed air supplied to the pneumatic gripper 3 is clean, dry, and has a stable pressure.

[0034] When the solenoid valve is energized, compressed air flows from the inlet to the first air path, pushing the piston of the gripper 3 to close the two output ends 31; at the same time, the second air path is connected to the exhaust port for exhaust.

[0035] When the solenoid valve is de-energized, compressed air flows from the inlet to the second air path, pushing the piston to open the two output ends 31; at the same time, the first air path connects to the exhaust port for exhaust.

[0036] The solenoid valve is controlled by the equipment's main control system (e.g., PLC) through a digital output module. The PLC sends "power on" or "power off" signals to the solenoid valve according to different stages of the production process.

[0037] "Open for threading" state: When the equipment needs to thread new wires, change product specifications, or stop for maintenance, the PLC controls the solenoid valve to de-energize, and the pneumatic gripper 3 drives the two clamping plates 1 to separate to the maximum opening, providing an interference-free channel for the wires.

[0038] "Closed Detection" Status: When the wire is threaded through and before the production line enters normal operation mode, the PLC controls the solenoid valve to be energized, and the pneumatic gripper 3 drives the two clamping plates 1 to close to the preset detection gap, ready to perform online detection.

[0039] The selection of the pneumatic gripper 3 should be matched with its load, namely the total weight of the mounting plate 2 and the clamping plate 1, and the required opening and closing speed, so as to ensure rapid response and reliable operation.

[0040] In this embodiment, given that the gripper plate assembly is lightweight and requires high operating speed, a lightweight pneumatic gripper with a smaller cylinder diameter and compact structure can be selected.

[0041] In this embodiment, the lateral position adjustment of the pneumatic gripper 3 on the support 4 is achieved by providing the second elongated hole 42. This helps to calibrate the entire device during initial installation, ensuring that the wire can pass through the center of the two clamping plates 1. The first elongated hole 22 on the mounting plate 2 allows for fine-tuning of the initial opening and closing reference position of the clamping plates 1, thereby precisely setting the minimum gap between the two clamping plates 1 in the closed state to adapt to the testing requirements of wires of different specifications.

[0042] Furthermore, mounting plate 2 is made of bakelite or fiberglass board. Both bakelite and fiberglass boards are insulators, which can insulate the wires from the equipment frame.

[0043] Furthermore, the two baffle plates 1 are ceramic plates. When there are solder nodules on the surface of the wire, the solder nodules cannot pass through the gaps in the baffle plates, causing the equipment to break down and stop.

[0044] like Figure 3 The diagram shown is an assembly diagram of this utility model. During operation, the pneumatic gripper 3 receives a control signal, which drives its two output ends 31 to move the mounting plate 2 and the clamping plate 1 synchronously. In the "open for threading" state, the two clamping plates 1 are separated, making it easier for the wire to be threaded in; in the "closed for detection" state, the two clamping plates 1 are close to each other, and a precise detection gap is formed between their opposing inner surfaces.

[0045] In summary, this utility model consists of a few components, including a bracket 4, a pneumatic gripper 3, a mounting plate 2, and a clamping plate 1. It has a compact structure, reliable operation, is easy to install and modify on existing production lines, and is convenient to maintain. The pneumatic gripper can be controlled by an external switch, opening during non-inspection periods such as threading and closing during production for inspection, thus improving production efficiency. The elongated holes on the mounting plate and bracket allow for easy adjustment of the gap between the two clamping plates, precisely adapting to wires of different diameters.

[0046] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A tin nodule detection device, characterized in that, include: Support (4); The pneumatic gripper (3) is mounted on the bracket (4) by the first screw (41); Two mounting plates (2) are respectively mounted on the two output ends (31) of the pneumatic gripper (3) by the second screw (21); Two clip plates (1) are respectively installed on the mounting plate (2) by a third screw (11); The two mounting plates (2) are respectively provided with a first elongated hole (22), and the second screw (21) passes through the first elongated hole (22) to fix the two mounting plates (2) to the two output ends (31) of the pneumatic gripper (3).

2. The tin nodule detection device according to claim 1, characterized in that: The bracket (4) has a second elongated hole (42), and the first screw (41) passes through the second elongated hole (42) to fix the pneumatic gripper (3).

3. A tin nodule detection device according to claim 1 or 2, characterized in that: The mounting plate (2) is a bakelite board.

4. A tin nodule detection device according to claim 1 or 2, characterized in that: The mounting plate (2) is a fiberglass board.

5. The tin nodule detection device according to claim 1, characterized in that: The pneumatic gripper (3) is a double-acting parallel pneumatic gripper.

6. The tin nodule detection device according to claim 1, characterized in that: The tuberculin plate (1) is a ceramic plate.

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