Square resistance automatic testing device

Abstract

The utility model belongs to the technical field of sheet resistance testing, and particularly relates to an automatic sheet resistance testing device, which comprises a base, and a testing module and a displacement module are arranged at the top end of the base; a working table is horizontally arranged at the top end of the base, two station areas are arranged on the working table, the two station areas extend in the axial direction of the working table and are arranged side by side, and membrane materials are placed on the station areas; the displacement module comprises a first motor and a first screw rod, the first motor and the first screw rod are arranged on the workbench, and an output shaft of the first motor is connected with the first screw rod; the test module comprises a test base and a test probe, the test base sleeves the outer side of the first screw rod, and the test base is in sliding connection with the first screw rod; a test probe is vertically arranged at one end, close to the station area, of the test base, the test probe is movably connected with the test base, and the bottom end of the test probe abuts against the top end of the membrane material; according to the utility model, the test module is arranged, so that the stress is consistent when the membrane material is tested, and the accuracy of sheet resistance is improved.

Description

Technical Field

[0001] This utility model belongs to the field of sheet resistance testing technology, specifically relating to an automatic sheet resistance testing device. Background Technology

[0002] The best way to measure the thickness of thin-film conductive materials such as evaporated aluminum film, conductive paint film, and copper foil film for printed circuit boards is to test their sheet resistance; sheet resistance refers to the resistance between the edges of a square thin-film conductive material.

[0003] Current sheet resistance testing uses manual methods. Due to the inherent errors in manual operation, the force used each time is inconsistent, resulting in varying contact force between the probe and the membrane material, which in turn leads to poor accuracy of the sheet resistance test data. Utility Model Content

[0004] The purpose of this invention is to provide an automatic sheet resistance testing device to solve the technical problem of insufficient accuracy caused by inconsistent contact force in manual sheet resistance testing, thereby ensuring that the force measured by the probe is the same each time and thus improving the accuracy of sheet resistance testing.

[0005] To solve the above-mentioned technical problems, this utility model provides an automatic sheet resistance testing device, including: a base, and a testing module and a displacement module are provided at the top of the base;

[0006] A workbench is horizontally arranged at the top of the base. Two workstations are arranged on the workbench. The two workstations extend side by side along the axial direction of the workbench. A membrane material is placed on the workstation.

[0007] The displacement module includes a first motor and a first lead screw, the first motor and the first lead screw are mounted on the worktable, and the output shaft of the first motor is connected to the first lead screw;

[0008] The test module includes a test base and a test probe. The test base is sleeved on the outside of the first lead screw, and the test base is slidably connected to the first lead screw.

[0009] The test probe is vertically mounted on one end of the test base near the work station area. The test probe is movably connected to the test base, and the bottom end of the test probe abuts against the top end of the membrane material.

[0010] Furthermore, a cylinder is provided on the work station area, and a pressure block is connected to the output shaft of the cylinder. The pressure block is located above the membrane material, and the bottom end of the pressure block abuts against the top end of the membrane material.

[0011] Furthermore, the bottom end of the pressure block is provided with a protrusion, and the top end of the work station area is provided with a recess, the recess matching the protrusion.

[0012] Furthermore, the displacement module also includes a second motor and a second lead screw, the second motor and the second lead screw are mounted on the worktable, and the output shaft of the second motor is connected to the second lead screw.

[0013] Furthermore, the second lead screw is connected to the workstation area, and the workstation area is movably connected to the workbench.

[0014] Furthermore, a material changing module is also provided on the workbench. The material changing module includes a first gripping mechanism and a second gripping mechanism. The first gripping mechanism and the second gripping mechanism are respectively located at both ends of the workbench, and the first gripping mechanism and the second gripping mechanism are respectively located at one end closer to the workstation area.

[0015] Furthermore, an electrical control cabinet is also provided on the workbench, and the electrical control cabinet is equipped with a control panel and several buttons; the electrical control cabinet is electrically connected to the test module, the material changing module and the displacement module.

[0016] Furthermore, the bottom of the base is provided with several rollers.

[0017] The beneficial effects of this utility model are:

[0018] 1. By setting up a dual-station area, when material needs to be changed, the first gripping mechanism and the second gripping mechanism are activated to grip the membrane material on the station area respectively, and the membrane material is changed to achieve seamless material change, thereby improving the efficiency of sheet resistance testing.

[0019] 2. By setting up a test probe, under the operation of the electrical control cabinet, the test probe slides along the membrane material and presses at intervals. The force of each press of the test probe is consistent, which ensures the accuracy of the sheet resistance test.

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an automatic sheet resistance testing device according to this utility model;

[0023] Figure 2 yes Figure 1 Top view.

[0024] In the picture:

[0025] 1. Base; 11. Workbench; 111. Workstation area; 112. Membrane material; 113. Pressing block; 12. Rollers;

[0026] 2. Test module; 21. Test base; 22. Test probe;

[0027] 3. Material changing module; 31. First gripping mechanism; 32. Second gripping mechanism;

[0028] 4. Displacement module; 41. First motor; 42. First lead screw; 43. Second motor; 44. Second lead screw;

[0029] 5. Electrical control cabinet; 51. Control panel; 52. Buttons. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] Example:

[0032] like Figures 1 to 2 As shown, an automatic sheet resistance testing device includes: a base 1, and a testing module 2 and a displacement module 4 are disposed on the top of the base 1.

[0033] like Figure 1 As shown, a worktable 11 is horizontally arranged at the top of the base 1, and several rollers 12 are arranged at the bottom of the base 1. Two workstation areas 111 are arranged on the worktable 11, extending side by side along the axial direction of the worktable 11. A membrane material 112 is placed on the workstation area 111. A cylinder is arranged on the workstation area 111, and the output shaft of the cylinder is connected to a pressure block 113. The pressure block 113 is located above the membrane material 112, and the bottom end of the pressure block 113 abuts against the top end of the membrane material 112. A protrusion is provided at the bottom end of the pressure block 113, and a concave part is provided at the top end of the workstation area 111. The concave part matches the protrusion. When the membrane material 112 is placed on the workstation area 111, the cylinder presses the protrusion of the pressure block 113 into the concave part of the workstation area 111, thereby positioning the membrane material 112 and preventing the membrane material 112 from sliding during measurement and affecting accuracy.

[0034] like Figure 2As shown, the displacement module 4 includes a first motor 41 and a first lead screw 42, which are mounted on the worktable 11. The output shaft of the first motor 41 is connected to the first lead screw 42. The test module 2 includes a test base 21 and a test probe 22. The test base 21 is sleeved on the outside of the first lead screw 42 and is slidably connected to the first lead screw 42. The test probe 22 is vertically mounted on one end of the test base 21 near the work station area 111. The test probe 22 is movably connected to the test base 21, and the bottom end of the test probe 22 abuts against the top end of the membrane material 112. The first motor 41 drives the first lead screw 42 to rotate, thereby driving the test base 21 to slide. The test base 21 slides along the membrane material 112. The test probe 22 presses down on the membrane material 112 according to the set program. After the test probe 22 finishes pressing, it lifts up, and the test base 21 continues to slide to the next position so that the test probe 22 can press down.

[0035] The displacement module 4 also includes a second motor 43 and a second lead screw 44, which are mounted on the worktable 11. The output shaft of the second motor 43 is connected to the second lead screw 44. The second lead screw 44 is connected to the workstation area 111, and the workstation area 111 is movably connected to the worktable 11. A material changing module 3 is also mounted on the worktable 11. The material changing module 3 includes a first gripping mechanism 31 and a second gripping mechanism 32, which are respectively located at both ends of the worktable 11. A first gripping mechanism 31 and a second gripping mechanism 32 are respectively located at one end near the workstation area 111. A second motor 43 drives a second lead screw 44 to rotate, thereby moving the workstation area 111. The second lead screw 44 moves the workstation area 111 up and down, facilitating the first gripping mechanism 31 and the second gripping mechanism 32 to grip the membrane material 112 on the workstation area 111. The first gripping mechanism 31 and the second gripping mechanism 32 interchange the membrane material 112, thereby realizing the replacement of the membrane material 112 and improving the sheet resistance testing efficiency of the membrane material 112.

[0036] In this embodiment, an electrical control cabinet 5 is also provided on the workbench 11. The electrical control cabinet 5 is provided with a control panel 51 and several buttons 52. The electrical control cabinet 5 is electrically connected to the test module 2, the material changing module 3 and the displacement module 4. The electrical control cabinet 5 controls the test probe 22 to press down. After the test probe 22 contacts the membrane material 112, it automatically calculates the sheet resistance of the membrane material 112 and sends it to the electrical control cabinet 5.

[0037] In summary, after the membrane material 112 is positioned in the work station area 111 by the pressure block 113, the number of measurement points and the displacement distance for each step are selected by setting the parameters in the control panel 51. The electrical control cabinet 5 sends a signal to the first motor 41, which drives the first lead screw 42 to slide the test base 21 to the corresponding position. After the test base 21 moves to the corresponding position, it sends a feedback signal to the electrical control cabinet 5, which then triggers a signal to the test probe 22 to start it and press it down into place. The test probe 22 contacts the membrane material 112, automatically calculates the sheet resistance of the membrane material 112, and displays it on the control panel 51. The test completion signal is then fed back to the electrical control cabinet 5. After receiving the test completion signal, the electrical control cabinet 5 sends a signal to the test probe 22 to raise it, preventing damage to the test probe 22 when the test base 21 is displaced. After the test probe is raised to the correct position, it sends a feedback signal to the electrical control cabinet 5, which then sends a displacement command for the next test displacement.

[0038] All the devices selected in this application are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0039] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An automatic sheet resistance testing device, characterized in that, include: A base (1) is provided with a test module (2) and a displacement module (4) at its top. The top of the base (1) is horizontally provided with a workbench (11), and the workbench (11) is provided with two workstation areas (111). The two workstation areas (111) extend side by side along the axial direction of the workbench (11), and a membrane material (112) is placed on the workstation area (111). The displacement module (4) includes a first motor (41) and a first lead screw (42). The first motor (41) and the first lead screw (42) are mounted on the worktable (11). The output shaft of the first motor (41) is connected to the first lead screw (42). The test module (2) includes a test base (21) and a test probe (22). The test base (21) is sleeved on the outside of the first lead screw (42), and the test base (21) is slidably connected to the first lead screw (42). The test probe (22) is vertically mounted on one end of the test base (21) near the work station area (111). The test probe (22) is movably connected to the test base (21), and the bottom end of the test probe (22) abuts against the top end of the membrane material (112).

2. The automatic sheet resistance testing device as described in claim 1, characterized in that, A cylinder is provided on the work station area (111), and the output shaft of the cylinder is connected to a pressure block (113). The pressure block (113) is located above the membrane material (112), and the bottom end of the pressure block (113) abuts against the top end of the membrane material (112).

3. The automatic sheet resistance testing device as described in claim 2, characterized in that, The bottom end of the pressure block (113) is provided with a protrusion, and the top end of the work station area (111) is provided with a recess, the recess matching the protrusion.

4. The automatic sheet resistance testing device as described in claim 1, characterized in that, The displacement module (4) also includes a second motor (43) and a second lead screw (44), the second motor (43) and the second lead screw (44) are mounted on the worktable (11), and the output shaft of the second motor (43) is connected to the second lead screw (44).

5. The automatic sheet resistance testing device as described in claim 4, characterized in that, The second lead screw (44) is connected to the work station area (111), and the work station area (111) is movably connected to the worktable (11).

6. The automatic sheet resistance testing device as described in claim 1, characterized in that, The workbench (11) is also provided with a material changing module (3), which includes a first gripping mechanism (31) and a second gripping mechanism (32). The first gripping mechanism (31) and the second gripping mechanism (32) are respectively located at both ends of the workbench (11) and at one end close to the workstation area (111).

7. The automatic sheet resistance testing device as described in claim 6, characterized in that, The workbench (11) is also equipped with an electrical control cabinet (5), which is equipped with a control panel (51) and several buttons (52); the electrical control cabinet (5) is electrically connected to the test module (2), the material changing module (3) and the displacement module (4).

8. The automatic sheet resistance testing device as described in claim 1, characterized in that, The base (1) is provided with several rollers (12) at its bottom end.

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