Detection tool for metal film

Abstract

The utility model discloses a detection tool used for a metal film. The detection tool comprises a carrier plate used for placing the metal film; the detection mechanism comprises two detection contacts, and the two detection contacts can move in the direction towards or away from the carrier plate and are used for making the two detection contacts be in contact with the metal film at the same time and measuring the resistance value of the metal film; the connecting rod mechanism comprises a rotating seat, a rotating rod and a force applying rod, and the rotating seat is arranged on the carrier plate; the detection mechanism is connected to one end of the rotating rod, and the other end of the rotating rod is hinged to the rotating seat. One end of the force application rod is hinged to the rotating seat, a driving block is arranged on the force application rod, and the driving block can rotate along with the force application rod and can abut against the rotating rod. According to the utility model, the two detection contacts can be driven to contact the metal film at the same time only by rotating the force application rod, and the two detection contacts do not need to be held by hands for measurement, so that the operation is more convenient, and the detection efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of metal thin film detection technology, and in particular to a tooling for detecting metal thin films. Background Technology

[0002] Metal thin films have a wide range of applications in electronics, optics, packaging, energy, medical, automotive, and aerospace fields due to their numerous excellent physical and chemical properties. During the manufacturing process of metal thin films, it is necessary to sample the films and measure their resistance values ​​to evaluate their quality, uniformity, and performance.

[0003] However, existing methods for measuring the resistance of thin-film metals typically involve holding two contacts against both ends of the thin-film metal to measure the resistance between them. This method has the following problems: First, it is inefficient: handheld measurement is time-consuming and not suitable for batch testing; second, it suffers from uneven pressure: inconsistent pressure from the two contacts on the thin-film metal can lead to excessive or insufficient deformation at both ends, affecting the accuracy of the measurement data; third, it results in inaccurate data: due to uneven pressure and human error, the measurement results are often not precise enough. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by this utility model is to propose a testing fixture for metal thin films, so as to solve the problems of cumbersome operation and inaccurate measurement of metal thin film resistance in the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is a testing fixture for metal thin films, comprising:

[0006] A carrier plate used to hold a thin metal film;

[0007] The testing mechanism includes two testing contacts, which are movable in a direction toward or away from the carrier plate, so that the two testing contacts simultaneously contact the metal film and measure the resistance of the metal film.

[0008] A linkage mechanism includes a rotating seat, a rotating rod, and a force-applying rod. The rotating seat is disposed on the carrier plate. The detection mechanism is connected to one end of the rotating rod, and the other end of the rotating rod is hinged to the rotating seat. One end of the force-applying rod is hinged to the rotating seat, and a driving block is provided on the force-applying rod. The driving block can rotate with the force-applying rod and can abut against the rotating rod.

[0009] Furthermore, the rotating seat is provided with a first hinge portion and a second hinge portion, the force-applying rod is provided with a third hinge portion and a fourth hinge portion, the third hinge portion is hinged to the first hinge portion, the end of the rotating rod away from the detection mechanism is hinged to the second hinge portion; one end of the driving block is hinged to the second hinge portion, and the other end is hinged to the fourth hinge portion.

[0010] Furthermore, the drive block is provided with a drive part, and rotating the drive block can cause the drive part to abut or separate from the rotating rod.

[0011] Furthermore, the upper end of the force-applying rod is also provided with a force-applying handle.

[0012] Furthermore, the detection mechanism also includes: a first movable plate and a second movable plate, the first movable plate being fixedly connected to the rotating rod, the second movable plate being buoyantly disposed below the first movable plate, and the two detection contacts being fixedly connected to the second movable plate.

[0013] Furthermore, multiple guide posts are provided between the first movable plate and the second movable plate. The two ends of the guide posts are slidably inserted through the first movable plate and the second movable plate, respectively, and a return spring is sleeved on the guide posts.

[0014] Furthermore, multiple guide posts are provided between the first movable plate and the second movable plate. One end of each guide post is slidably inserted through the first movable plate, and the other end is fixedly connected to the second movable plate. A return spring is sleeved on each guide post.

[0015] Furthermore, multiple guide posts are provided between the first movable plate and the second movable plate. One end of each guide post is slidably inserted through the second movable plate, and the other end is fixed to the first movable plate. A return spring is sleeved on each guide post.

[0016] Furthermore, a handle is provided above the first movable plate.

[0017] Furthermore, a plastic plate for placing a metal film is provided on the carrier plate.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] (1) Simply rotating the force-applying rod is enough to make both detection contacts simultaneously contact the metal film, eliminating the need to hold both detection contacts by hand for measurement. This makes operation more convenient and improves detection efficiency. At the same time, the two detection contacts move synchronously, exerting equal forces on the metal film. This avoids the phenomenon of uneven forces exerted by the two detection contacts on the metal film, which can lead to inaccurate detection results and improves measurement accuracy.

[0020] (2) A first movable plate and a second movable plate are set, and the second movable plate is floatably set below the first movable plate. When the force applied to the force rod exceeds the force required by the detection contact, the excess force can make the first movable plate move downward and compress the return spring, thereby dissipating the excess force and ensuring that the force of the detection contact on the metal film is equal each time (i.e., the elastic force of the return spring). The detection results of batch detection are more reliable. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the detection tooling in the embodiment;

[0022] Figure 2 This is a schematic diagram of the rotating seat, driving block, and force-applying rod in the embodiment;

[0023] In the picture:

[0024] 100. Carrier plate; 110. Plastic sheet;

[0025] 200 Linkage mechanism; 210 Force-applying rod; 211 Force-applying handle; 220 Rotating rod; 230 Rotating seat; 240 Drive block; 241 Drive unit;

[0026] 300. Detection mechanism; 310. First movable plate; 320. Second movable plate; 330. Detection contact; 340. Guide post; 350. Return spring; 360. Handle. Detailed Implementation

[0027] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0028] Please refer to Figures 1-2 This utility model discloses a testing fixture for metal thin films, comprising:

[0029] Carrier plate 100 for placing the metal film;

[0030] The detection mechanism 300 includes two detection contacts 330, which can move toward or away from the carrier plate 100, so that the two detection contacts 330 simultaneously contact the metal film and measure the resistance of the metal film.

[0031] The linkage mechanism 200 includes a rotating seat 230, a rotating rod 220, and a force-applying rod 210. The rotating seat 230 is disposed on the carrier plate 100. The detection mechanism 300 is connected to one end of the rotating rod 220, and the other end of the rotating rod 220 is hinged to the rotating seat 230. One end of the force-applying rod 210 is hinged to the rotating seat 230, and a driving block 240 is provided on the force-applying rod 210. The driving block 240 can rotate with the force-applying rod 210 and can abut against the rotating rod 220.

[0032] Specifically, the linkage mechanism 200 of this application includes a rotating seat 230, a rotating rod 220 and a force-applying rod 210. By rotating the force-applying rod 210, the rotating rod 220 is driven to rotate, which in turn drives the two detection contacts 330 on the detection mechanism 300 to rotate downward together until they contact the metal film on the carrier plate 100, so as to measure the resistance value of the metal film.

[0033] Importantly, this application only requires rotating the force-applying rod 210 to simultaneously bring the two detection contacts 330 into contact with the metal film, eliminating the need to hold the two detection contacts 330 by hand for measurement, making operation more convenient and improving detection efficiency. Simultaneously, the synchronous action of the two detection contacts 330 ensures equal force on the metal film, avoiding the inaccurate detection results caused by uneven force exerted by the two detection contacts 330 on the metal film, thus improving measurement accuracy.

[0034] Furthermore, the rotating seat 230 is provided with a first hinge portion and a second hinge portion, the force-applying rod 210 is provided with a third hinge portion and a fourth hinge portion, the third hinge portion is hinged to the first hinge portion, one end of the rotating rod 220 away from the detection mechanism 300 is hinged to the second hinge portion; one end of the driving block 240 is hinged to the second hinge portion, and the other end is hinged to the fourth hinge portion.

[0035] Specifically, during measurement, the metal film sample is first placed on the carrier plate 100. Then, the force rod 210 is rotated. The force rod 210 rotates around the first hinge (third hinge) and drives the drive block 240 to rotate around the second hinge until the drive block 240 abuts against the rotating rod 220. Then, pressure is applied to the force rod 210. The drive block 240 applies force to the rotating rod 220 and transmits the force to the two detection contacts 330, so that the two detection contacts 330 simultaneously contact the metal film to measure the resistance value of the metal film.

[0036] Furthermore, the drive block 240 is provided with a drive part 241, and rotating the drive block 240 can cause the drive part 241 to abut or separate from the rotating rod 220.

[0037] Specifically, in this application, the force applied by the force rod 210 drives the drive block 240 to rotate, and the drive part 241 rotates together with the drive block 240 until the drive part 241 comes into contact with the rotating rod 220. Then, the force on the force applied by the force rod 210 can be transmitted to the two detection contacts 330 through the drive part 241 and the rotating rod 220.

[0038] Furthermore, the upper end of the force-applying rod 210 is also provided with a force-applying handle 211.

[0039] A force-applying handle 211 is provided on the force-applying rod 210 so that the handle can be held and force applied during operation.

[0040] Furthermore, the detection mechanism 300 also includes: a first movable plate 310 and a second movable plate 320, the first movable plate 310 being fixedly connected to the rotating rod 220, the second movable plate 320 being buoyantly disposed below the first movable plate 310, and the two detection contacts 330 being fixedly connected to the second movable plate 320.

[0041] Specifically, a first movable plate 310 and a second movable plate 320 are provided, with the second movable plate 320 floating below the first movable plate 310. When the force applied to the force rod 210 exceeds the force required by the detection contact 330, the excess force can cause the first movable plate 310 to move downward and compress the return spring 350, thereby mitigating the excess force and ensuring that the force exerted by the detection contact 330 on the metal film is equal each time (i.e., the elastic force of the return spring 350). This makes the test results of batch testing more reliable.

[0042] Furthermore, a plurality of guide posts 340 are provided between the first movable plate 310 and the second movable plate 320. The two ends of the guide posts 340 are slidably inserted on the first movable plate 310 and the second movable plate 320, respectively, and a return spring 350 is sleeved on the guide posts 340.

[0043] Furthermore, a plurality of guide posts 340 are provided between the first movable plate 310 and the second movable plate 320. One end of the guide post 340 is slidably inserted on the first movable plate 310, and the other end is fixed to the second movable plate 320. A return spring 350 is sleeved on the guide post 340.

[0044] Furthermore, a plurality of guide posts 340 are provided between the first movable plate 310 and the second movable plate 320. One end of the guide post 340 is slidably inserted into the second movable plate 320, and the other end is fixed to the first movable plate 310. A return spring 350 is sleeved on the guide post 340.

[0045] Specifically, the floating arrangement of the first movable plate 310 and the second movable plate 320 has the following three implementation methods: First, one end of the guide post 340 is slidably inserted through the first movable plate 310, and the other end is slidably inserted through the second movable plate 320; Second, one end of the guide post 340 is slidably inserted through the first movable plate 310, and the other end is fixedly connected to the second movable plate 320; Third, one end of the guide post 340 is slidably inserted through the second movable plate 320, and the other end is fixedly connected to the first movable plate 310. In all three structures, a return spring 350 is sleeved on the guide post 340. When the first movable plate 310 moves downward, it compresses the return spring 350. After the force rod 210 is released, the first movable plate 310 returns to its original position under the elastic force of the return spring 350.

[0046] Furthermore, a handle 360 ​​is provided above the first movable plate 310.

[0047] Specifically, after completing a test, the sample to be tested needs to be removed and a new sample to be tested needs to be placed in. At this time, the handle 360 ​​can be held and applied upward to make the entire testing mechanism 300 rotate around the second hinge, while the two testing contacts 330 are separated from the metal film and space is made up for the sample replacement.

[0048] Furthermore, a plastic plate 110 for placing a metal film is provided on the carrier plate 100.

[0049] The metal film is placed on the plastic plate 110. The plastic plate 110 has a certain degree of elasticity, which allows the metal film to better fit with the detection contact 330 during testing, so as to make the measurement results more accurate.

[0050] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0051] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A testing fixture for metal thin films, characterized in that, include: A carrier plate used to hold a thin metal film; The testing mechanism includes two testing contacts, which are movable in a direction toward or away from the carrier plate, so that the two testing contacts simultaneously contact the metal film and measure the resistance of the metal film. A linkage mechanism includes a rotating seat, a rotating rod, and a force-applying rod. The rotating seat is disposed on the carrier plate. The detection mechanism is connected to one end of the rotating rod, and the other end of the rotating rod is hinged to the rotating seat. One end of the force-applying rod is hinged to the rotating seat, and a driving block is provided on the force-applying rod. The driving block can rotate with the force-applying rod and can abut against the rotating rod.

2. The inspection fixture for metal thin films according to claim 1, characterized in that, The rotating seat is provided with a first hinge and a second hinge, the force-applying rod is provided with a third hinge and a fourth hinge, the third hinge is hinged to the first hinge, the end of the rotating rod away from the detection mechanism is hinged to the second hinge, one end of the driving block is hinged to the second hinge, and the other end is hinged to the fourth hinge.

3. The inspection fixture for metal thin films according to claim 1, characterized in that, The drive block is provided with a drive part, and rotating the drive block can cause the drive part to abut or separate from the rotating rod.

4. The inspection fixture for metal thin films according to claim 1, characterized in that, The upper end of the force-applying rod is also provided with a force-applying handle.

5. The inspection fixture for metal thin films according to claim 1, characterized in that, The detection mechanism further includes: a first movable plate and a second movable plate, the first movable plate being fixedly connected to the rotating rod, the second movable plate being buoyantly disposed below the first movable plate, and the two detection contacts being fixedly connected to the second movable plate.

6. The inspection fixture for metal thin films according to claim 5, characterized in that, Multiple guide posts are provided between the first movable plate and the second movable plate. The two ends of the guide posts are slidably inserted through the first movable plate and the second movable plate, respectively, and a return spring is sleeved on the guide posts.

7. The inspection fixture for metal thin films according to claim 5, characterized in that, Multiple guide posts are provided between the first movable plate and the second movable plate. One end of each guide post is slidably inserted through the first movable plate, and the other end is fixedly connected to the second movable plate. A return spring is sleeved on each guide post.

8. The inspection fixture for metal thin films according to claim 5, characterized in that, Multiple guide posts are provided between the first movable plate and the second movable plate. One end of each guide post is slidably inserted through the second movable plate, and the other end is fixed to the first movable plate. A return spring is sleeved on each guide post.

9. A testing fixture for metal thin films according to claim 5, characterized in that, A handle is provided above the first movable plate.

10. A testing fixture for metal thin films according to claim 1, characterized in that, A plastic plate for placing a metal film is provided on the carrier plate.

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