Automatic tungsten filament straightness detection device

Abstract

The utility model relates to the technical field of tungsten filament detection, in particular to an automatic tungsten filament straightness detection device, which comprises a workbench, a clamp, a graduated scale and a cutting device, two ends of a wire are clamped through the clamp, the wire is fixed between a 0 cm point position and a 70 cm point position of the graduation scale, the wire is ensured to be in a vertical state, and the cutting device is arranged on the workbench. Then the multiple wires are uniformly cut at the 50cm point position through the cutting device, the position where the straightness generated after the wires are cut and rebounded and static does not exceed the blue scale is determined to be qualified in the straightness test, the position where the wave crest generated after the wires are cut and rebounded and static does not exceed the vertical scale is determined to be qualified in the wave crest test, and multiple batches of test results can be directly observed; according to the method, independent measurement by using a caliper is not needed, batch observation trend of the straightness and the wave crest can be realized, comparative analysis of the straightness and the wave crest of the wire under different processes can be carried out, the method is simple in process and high in controllability, and the detection time cost is reduced.

Description

An automated device for detecting the straightness of tungsten wires. Technical Field

[0001] This utility model relates to the field of tungsten wire detection technology, specifically to an automated device for detecting the straightness of tungsten wires. Background Technology

[0002] With the continuous development of the photovoltaic industry, the requirements for silicon wafer cutting are constantly increasing, and the advantages of tungsten wire will become more and more prominent. Its potential for finer wires is significant, which can meet the needs of thinner silicon wafers, help reduce silicon material costs, and improve the efficiency and competitiveness of photovoltaic modules. In terms of technology, continuous R&D investment is expected to further improve the performance of tungsten wire, such as reducing the breakage rate and improving cutting precision. In terms of market demand, with the expansion of the photovoltaic market, the market size of tungsten wire is expected to continue to grow.

[0003] In the product specifications of tungsten wire, straightness and crests are important performance indicators. The straightness of the wire is determined by its natural springback after cutting, and the crests formed on the left and right sides after cutting are the crests of the wire. Currently, the main method for testing is to mark lines on the wall, fix them with tape, and then cut them. The test results cannot be directly displayed, and each wire needs to be measured individually with calipers. This method cannot achieve batch observation of straightness and crest trends. Summary of the Invention

[0004] The purpose of this invention is to provide an automated device for detecting the straightness of tungsten wires, so as to solve the problems mentioned in the background art.

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

[0006] An automated device for detecting the straightness of tungsten wires, comprising:

[0007] The workbench has a vertical surface.

[0008] A clamp, set on the worktable, is used to hold a tungsten wire placed vertically on the worktable;

[0009] A ruler is set on the workbench;

[0010] A cutting device, set on the workbench, is used to cut tungsten wire held by a clamp.

[0011] Preferably, the clamp is a magnetic clamp.

[0012] Preferably, the scale includes a horizontal scale for observing the straight springback state of the tungsten wire after cutting.

[0013] Preferably, the horizontal scale ranges from 0 to 50 cm, with intervals of 1 cm.

[0014] Preferably, the horizontal scale includes a red scale and a blue scale, wherein the red scale is the 0-45cm mark of the horizontal scale, and the blue scale is the 45-50cm mark of the horizontal scale.

[0015] Preferably, the scale also includes a vertical scale, which is used to observe the left and right springback of the tungsten wire after cutting.

[0016] Preferably, the vertical scale is marked at a position 25mm to the left and right of each tungsten wire when it is vertical.

[0017] Preferably, the cutting device uses a sharp steel blade for cutting.

[0018] Preferably, the cutting device is located at the 50cm mark on the horizontal scale.

[0019] Preferably, a bubble level is also provided on the worktable.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This invention uses clamps to hold both ends of the filament and fix it between the 0cm and 70cm marks, ensuring the filament is vertical. Then, a cutting device cuts multiple filaments uniformly at the 50cm mark. If the straightness of the filament after springing back to rest does not exceed the blue mark, the straightness test is qualified. If the crest of the filament after springing back to rest does not exceed the vertical mark, the crest test is qualified. This allows for direct observation of multiple batches of inspection results without the need for individual measurements using calipers. It enables batch observation of straightness and crest trends and allows for comparative analysis of filament straightness and crest under different processes. The method is simple, highly controllable, and reduces testing time and costs. Attached Figure Description

[0022] Figure 1 is a schematic diagram of the structure of this utility model.

[0023] In the diagram: 1. Workbench; 2. Fixture; 3. Ruler; 301. Red graduation; 302. Blue graduation; 4. Cutting device; 5. Bubble level. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0026] As shown in Figure 1, this application provides an automated device for detecting the straightness of tungsten wire, comprising: a worktable 1, the surface of which is vertical; a clamp 2, which is disposed on the worktable 1 and is used to clamp the tungsten wire placed vertically on the worktable 1; a scale 3, which is disposed on the worktable 1; and a cutting device 4, which is disposed on the worktable 1 and is used to cut the tungsten wire clamped by the clamp 2.

[0027] The device can detect more than ten filaments at the same time. Compared with the traditional single filament detection, it can realize batch observation of straightness trend. The new device can detect multiple filaments at one time and can conduct comparative analysis of filament straightness under different processes. The method is simple and highly controllable, which is conducive to the quality control of straightness.

[0028] Specifically, as shown in Figure 1, clamp 2 is a magnetic clamp.

[0029] The magnetic clamp holds both ends of the wire, ensuring it remains vertical. This effectively avoids the problem of the wire not being properly fixed at the zero point due to the adhesive strength of traditional tape, which is a common issue in traditional testing. It also ensures the wire is vertical, improving testing accuracy and preventing the wire from loosening due to insufficient adhesive strength. The magnetic clamp ensures that even under maximum suction, the wire can be manually held in a straight line, maintaining its stability. Furthermore, the magnetic clamp facilitates wire loading, further enhancing work efficiency.

[0030] Specifically, as shown in Figure 1, the scale 3 includes a horizontal scale used to observe the straight springback state of the tungsten wire after cutting; the range of the horizontal scale is 0-50cm, and the interval is 1cm; the horizontal scale includes a red scale 301 and a blue scale 302, the red scale 301 is the 0-45cm mark of the horizontal scale, and the blue scale 302 is the 45-50cm mark of the horizontal scale.

[0031] The straightness of the wire is determined by the natural springback of the wire after cutting. The standard for straightness testing is ≤45cm, which is considered unqualified. If the straightness of the wire after springback does not exceed the red mark, the straightness test is considered qualified. That is, if it does not exceed the position of the blue mark 302, the straightness test is qualified. Similarly, if it is at the position of the red mark 301, the straightness test is unqualified.

[0032] Specifically, as shown in Figure 1, the scale 3 also includes a vertical scale, which is used to observe the left and right springback of the tungsten wire after cutting; the vertical scale is a mark at the position 25mm to the left and right of each tungsten wire in a vertical state.

[0033] The wave crests formed on the left and right sides after the filament is cut are the wave crests of the filament. The conventional standard for wave crest testing is ≥25mm, which is considered unqualified. If the wave crests formed after the filament is cut and springs back to rest do not exceed the 25mm mark on the left and right sides, the wave crest test is considered qualified. In other words, if the wave crests do not exceed the vertical scale, the wave crest test is considered qualified.

[0034] Specifically, as shown in Figure 1, the cutting device 4 uses a sharp steel blade for cutting; the cutting device 4 is located at the 50cm mark on the horizontal scale.

[0035] Multiple wires were cut uniformly at a 50cm point using a sharp steel knife.

[0036] Specifically, as shown in Figure 1, a level bubble 5 is also provided on the workbench 1.

[0037] The level of the worktable 1 is ensured by using the level bubble 5, thereby ensuring the accuracy of the horizontal and vertical scales.

[0038] The specific details of this plan are as follows:

[0039] Workbench 1 can simultaneously test more than ten tungsten wires of the same or different diameters. First, clamps 2 hold both ends of the wire and fix it between the 0cm and 70cm marks to ensure the wire is vertical. Then, the cutting device 4 cuts multiple wires at the 50cm mark. If the straightness of the wire after springing back to rest does not exceed the blue mark 302, the straightness test is qualified. If the peak of the wire after springing back to rest does not exceed the vertical mark, the peak test is qualified. The test results of multiple batches can be directly observed without the need for individual measurements using calipers. This allows for batch observation of straightness and peak trends and comparative analysis of wire straightness and peak under different processes. The method is simple, highly controllable, and reduces testing time and costs.

[0040] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0041] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for automating the detection of tungsten wire straightness, characterized in that, include: Workbench (1), the surface of which is vertical; A clamp (2) is provided on the workbench (1) for clamping a tungsten wire placed vertically on the workbench (1); a ruler (3) is provided on the workbench (1); and a cutting device (4) is provided on the workbench (1) for cutting the tungsten wire clamped by the clamp (2).

2. The device for automating the detection of tungsten wire straightness according to claim 1, characterized in that, The clamp (2) is a magnetic clamp.

3. The device for automating the detection of tungsten wire straightness according to claim 1, characterized in that, The scale (3) includes a horizontal scale, which is used to observe the straight springback state of the tungsten wire after cutting.

4. The device for automating the detection of tungsten wire straightness according to claim 3, characterized in that, The horizontal scale ranges from 0 to 50 cm, with intervals of 1 cm.

5. The device for automating the detection of tungsten wire straightness according to claim 4, characterized in that, The horizontal scale includes a red scale (301) and a blue scale (302), the red scale (301) being the 0-45cm mark of the horizontal scale, and the blue scale (302) being the 45-50cm mark of the horizontal scale.

6. The device for automating the detection of tungsten wire straightness according to claim 5, characterized in that, The ruler (3) also includes a vertical scale, which is used to observe the left and right springback state of the tungsten wire after cutting.

7. The device for automating the detection of tungsten wire straightness according to claim 6, characterized in that, The vertical scale is the marking at a position 25mm to the left and right of each tungsten wire when it is vertical.

8. The device for automating the detection of tungsten wire straightness according to claim 7, characterized in that, The cutting device (4) uses a sharp steel blade for cutting.

9. The device for automating the detection of tungsten wire straightness according to claim 8, characterized in that, The cutting device (4) is located at the 50cm mark of the horizontal scale.

10. The device for automating the detection of tungsten wire straightness according to claim 1, characterized in that, A level bubble (5) is also provided on the workbench (1).

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