Stretchable conductive adhesive strain test platform

Abstract

The utility model discloses a kind of stretchable conductive glue strain test benches, belong to conductive silicone technical field, including base, the upper surface of the base is fixedly connected with tensile mechanism, the outer surface of the tensile mechanism is fixedly connected with detection mechanism, the tensile mechanism includes fixedly connected with the fixed housing and first clamping frame of the base upper surface, the inner wall sliding connection of the fixed housing has connecting block, the outer surface of the connecting block is fixedly connected with second clamping frame, the outer surface of the second clamping frame and the first clamping frame is screw-threaded with bolt;The stretchable conductive glue strain test bench, through power box, wire, first conductive groove, second conductive groove and conductive plate form closed circuit, conductive glue both ends are connected into circuit through conducting strip, ammeter can real-time feedback current change when stretching, reflect conductive performance, circuit design ensures that conductive glue is always connected with circuit during stretching process, and test continuity is strong.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of conductive silica gel, and specifically relates to a stretchable conductive adhesive strain test bench. BACKGROUND

[0002] Conductive adhesive is adhesive with conductivity after curing and drying, and the conductive adhesive is a special adhesive with both conductivity and adhesion. The stretchable conductive adhesive is a conductive adhesive that can maintain certain conductivity under the action of stretching and other deformations. The stretchable conductive adhesive strain refers to the phenomenon that the electrical properties of the stretchable conductive adhesive change when the stretchable conductive adhesive is deformed under the action of external force. This strain characteristic is an important indicator for measuring the reliability and stability of the stretchable conductive adhesive in actual application. For example, in the fields of flexible electronic devices and wearable devices, the stretchable conductive adhesive needs to maintain stable conductivity under repeated stretching deformation, and its strain characteristic is particularly critical.

[0003] The utility model discloses a kind of conductive adhesive testing devices with the utility model discloses a kind of conductive adhesive testing devices with CN219417526U of Chinese utility model discloses a kind of conductive adhesive testing devices, including test bench, fixed block, wire, power supply box and test lamp;Fixed block is fixed in the middle of test bench;Test bench top is equipped with wire;After placing conductive adhesive button in recess, fixed plate needs to be placed back to original place, fixed column is inserted into fixed groove, and the fixation of conductive adhesive button can be completed, after starting equipment, presser repeatedly presses and tests conductive adhesive button, and each press and test conductive adhesive button will connect a pair of conductive sheet, so that test lamp emits light, when test lamp emits light, it represents that conductive adhesive button is normal use, if test lamp is not bright, it indicates that product is unqualified, by the fixed plate of setting, the stability of product is effectively improved, the displacement situation of product after being pressed for many times is reduced, and then the detection effect is improved, the accuracy of detection result is increased.

[0004] The existing equipment fixes the conductive adhesive button by the cooperation of the fixed plate and the fixed column. During the test, the presser applies pressure along the vertical direction, so that the conductive adhesive is compressed and deformed. The clamping structure can only limit the planar displacement of the conductive adhesive, and cannot adapt to the force transmission along the horizontal direction in the stretching test. If it is forcibly used for stretching test, the conductive adhesive is easy to fall off from the fixed structure, which leads to the interruption of the test. Therefore, it is inconvenient to detect the conductivity of the stretched conductive adhesive.

[0005] Therefore, the utility model provides a kind of stretchable conductive adhesive strain test bench to solve the above problems. UTILITY MODEL CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model provides a kind of stretchable conductive adhesive strain test bench, and solves the above problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a stretchable conductive adhesive strain testing platform, comprising a base, a tensile mechanism fixedly connected to the upper surface of the base, and a testing mechanism fixedly connected to the outer surface of the tensile mechanism. The tensile mechanism includes a fixed outer shell and a first clamping frame fixedly connected to the upper surface of the base. A connecting block is slidably connected to the inner wall of the fixed outer shell, and a second clamping frame is fixedly connected to the outer surface of the connecting block. Bolts are threadedly connected to the outer surfaces of the second clamping frame and the first clamping frame. A pressure plate is rotatably connected to the lower end of the bolts, and the outer surface of the pressure plate is slidably connected to the second clamping frame. The clamping frame and the inner wall of the first clamping frame, the detection mechanism includes a power box fixedly connected to the outer surface of the fixed housing, a second wire fixedly connected to the outer surface of the power box, a first conductive groove fixedly connected to the outer surface of the second wire, an ammeter fixedly connected to the outer surface of the first conductive groove via a wire, the other end of the ammeter fixedly connected to the second conductive groove via a wire, a first wire fixedly connected to the outer surface of the second conductive groove, the first wire fixedly connected to the outer surface of the power box, and a conductive plate slidably connected to the inner wall of the second conductive groove, the conductive plate being fixedly connected to the inner wall of the second clamping frame.

[0008] Furthermore, both the first conductive groove and the second conductive groove are embedded in the side of the fixed housing, and the inner wall of the first clamping frame is fixedly connected to the outer surface of the conductive plate, and the conductive plate in the first clamping frame is fixedly connected to the inner wall of the first conductive groove.

[0009] Using the above technical solution, the conductive plate fixed to the inner wall of the second clamping frame slides on the inner wall of the second conductive groove, which facilitates the stretching of the conductive adhesive. This ensures that both ends of the conductive adhesive are always connected to the first and second conductive grooves. Specifically, one end of the conductive adhesive is connected to the first conductive groove through the conductive plate of the first clamping frame, and the other end is connected to the second conductive groove through the conductive plate of the second clamping frame, forming a closed circuit.

[0010] Furthermore, conductive sheets are fixedly connected to the inner walls of both the second clamping frame and the first clamping frame. The outer surface of the conductive sheet is fixedly connected to the outer surface of the conductive plate. A control panel is fixedly connected to the upper surface of the base. The outer surface of the control panel is electrically connected to the outer surface of the servo motor via wires.

[0011] By adopting the above technical solution, the conductive sheet facilitates the connection between the two ends of the conductive adhesive, making it easier to test the conductive adhesive.

[0012] Furthermore, a servo motor is fixedly connected to the outer surface of the fixed housing, and a threaded rod is fixedly connected to the output shaft of the servo motor. The threaded rod is rotatably connected to the inner wall of the fixed housing, and the outer surface of the threaded rod is threadedly connected to the outer surface of the connecting block.

[0013] Using the above technical solution, by starting the servo motor, the output shaft of the servo motor drives the threaded rod to rotate, and the rotation of the threaded rod causes the connecting block to slide on the inner wall of the fixed housing, thereby facilitating the adjustment of the distance between the second clamping frame and the first clamping frame, and facilitating the stretching of the conductive adhesive.

[0014] Furthermore, the upper surface of the fixed housing is engraved with scale lines, and the upper surface of the second clamping frame is fixedly connected with a pointing block.

[0015] Using the above technical solution, the pointing block can be used to point to the scale line to facilitate the measurement of the stretching length of the conductive adhesive.

[0016] Furthermore, both the inner walls of the second clamping frame and the first clamping frame are fixedly connected with fixing protrusions, and the outer surface of the fixing protrusions is in contact with the lower surface of the conductive sheet.

[0017] Using the above technical solution, by rotating the bolt, the bolt drives the pressure plate to slide on the inner wall of the first or second clamping frame, so that the lower surface of the pressure plate clamps and limits the two ends of the conductive adhesive. Beneficial effects

[0018] This invention provides a tensile conductive adhesive strain testing stage. Compared with the prior art, it has the following advantages:

[0019] 1. This stretchable conductive adhesive strain test bench forms a closed circuit through a power supply box, wires, a first conductive groove, a second conductive groove, and a conductive plate. The two ends of the conductive adhesive are connected to the circuit through conductive sheets. During stretching, the ammeter can provide real-time feedback on the current change, reflecting the conductivity. The circuit design ensures that the conductive adhesive is always connected to the circuit during the stretching process, resulting in strong test continuity.

[0020] 2. This stretchable conductive adhesive strain test stand uses a servo motor to drive a threaded rod to rotate, causing the connecting block and the second clamping frame to slide along the fixed outer shell. The distance between the connecting block and the first clamping frame can be precisely adjusted to achieve stable stretching of the conductive adhesive. The bolts and pressure plates work together to fix the protrusions, which can firmly clamp both ends of the conductive adhesive and prevent slippage during stretching. The scale lines on the fixed outer shell work with the pointing blocks of the second clamping frame to allow for intuitive reading of the stretching length, ensuring that the stretching process is controllable and measurable, meeting the testing requirements for different degrees of stretching, and is easy to operate with high accuracy. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only 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 perspective view of the external structure of this utility model;

[0023] Figure 2 This is a front sectional view of the structure of this utility model;

[0024] Figure 3 This is a side sectional view of the structure of this utility model;

[0025] Figure 4 This is a top sectional view of the structure of this utility model.

[0026] In the diagram: 1. Base; 2. Tensioning mechanism; 201. Threaded rod; 202. First clamping frame; 203. Second clamping frame; 204. Bolt; 205. Pressure plate; 206. Scale line; 207. Fixed outer shell; 208. Servo motor; 209. Connecting block; 210. Fixed protrusion; 211. Pointing block; 3. Detection mechanism; 301. First wire; 302. Power supply box; 303. Second wire; 304. Control panel; 305. First conductive groove; 306. Second conductive groove; 307. Conductive sheet; 308. Conductive plate; 309. Ammeter. Detailed Implementation

[0027] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," 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 application 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 application. 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0028] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] Reference Figures 1 to 4This application provides a stretchable conductive adhesive strain testing stage, including a base 1. A tensile mechanism 2 is fixedly connected to the upper surface of the base 1, and a testing mechanism 3 is fixedly connected to the outer surface of the tensile mechanism 2. The tensile mechanism 2 includes a fixed outer shell 207 and a first clamping frame 202 fixedly connected to the upper surface of the base 1. A connecting block 209 is slidably connected to the inner wall of the fixed outer shell 207. A second clamping frame 203 is fixedly connected to the outer surface of the connecting block 209. Bolts 204 are threadedly connected to the outer surfaces of the second clamping frame 203 and the first clamping frame 202. A pressure plate 205 is rotatably connected to the lower end of the bolts 204. The outer surface of the pressure plate 205 is slidably connected to the second clamping frame 203 and the first clamping frame 202. The inner wall of the 02, the detection mechanism 3 includes a power box 302 fixedly connected to the outer surface of the fixed housing 207. A second wire 303 is fixedly connected to the outer surface of the power box 302. A first conductive groove 305 is fixedly connected to the outer surface of the second wire 303. An ammeter 309 is fixedly connected to the outer surface of the first conductive groove 305 through a wire. The other end of the ammeter 309 is fixedly connected to a second conductive groove 306 through a wire. A first wire 301 is fixedly connected to the outer surface of the second conductive groove 306. The first wire 301 is fixedly connected to the outer surface of the power box 302. A conductive plate 308 is slidably connected to the inner wall of the second conductive groove 306. The conductive plate 308 is fixedly connected to the inner wall of the second clamping frame 203.

[0030] Furthermore, the first conductive groove 305 and the second conductive groove 306 are both embedded in the side of the fixed housing 207, and the inner wall of the first clamping frame 202 is fixedly connected to the outer surface of the conductive plate 308. The conductive plate 308 in the first clamping frame 202 is fixedly connected to the inner wall of the first conductive groove 305. The inner walls of the second clamping frame 203 and the first clamping frame 202 are both fixedly connected with conductive sheets 307. The outer surface of the conductive sheet 307 is fixedly connected to the outer surface of the conductive plate 308. The upper surface of the base 1 is fixedly connected with a control panel 304. The outer surface of the control panel 304 is electrically connected to the outer surface of the servo motor 208 through wires.

[0031] In this embodiment, a closed circuit is formed by the power supply box 302, wires, first conductive groove 305, second conductive groove 306 and conductive plate 308. The two ends of the conductive adhesive are connected to the circuit through conductive sheet 307. When stretched, the ammeter 309 can provide real-time feedback on the current change and reflect the conductivity. The circuit design ensures that the conductive adhesive is always connected to the circuit during the stretching process, and the test continuity is strong.

[0032] Reference Figures 1 to 4In one aspect of this embodiment, a servo motor 208 is fixedly connected to the outer surface of the fixed housing 207. The output shaft of the servo motor 208 is fixedly connected to a threaded rod 201. The threaded rod 201 is rotatably connected to the inner wall of the fixed housing 207, and the outer surface of the threaded rod 201 is threadedly connected to the outer surface of the connecting block 209. The thread helix angle of the threaded rod 201 is less than or equal to the friction angle of the threaded pair. The static friction between the threaded pairs can counteract the downward trend of the connecting block 209 caused by the stretching reaction force of the conductive adhesive, so that the connecting block 209 remains in a fixed position when there is no power input, thereby achieving self-locking.

[0033] Furthermore, the upper surface of the fixed housing 207 is engraved with scale lines 206, and the upper surface of the second clamping frame 203 is fixedly connected with a pointing block 211. The inner walls of the second clamping frame 203 and the first clamping frame 202 are both fixedly connected with fixing protrusions 210, and the outer surface of the fixing protrusions 210 is attached to the lower surface of the conductive sheet 307.

[0034] In this embodiment, the servo motor 208 drives the threaded rod 201 to rotate, causing the connecting block 209 and the second clamping frame 203 to slide along the fixed housing 207. This allows for precise adjustment of the distance to the first clamping frame 202, achieving stable stretching of the conductive adhesive. The bolt 204 and the pressure plate 205 work together to fix the protrusion 210, which can firmly clamp both ends of the conductive adhesive and prevent slippage during stretching. The scale line 206 on the fixed housing 207 works with the pointing block 211 of the second clamping frame 203, allowing for intuitive reading of the stretching length. This ensures that the stretching process is controllable and measurable, meeting the testing requirements for different stretching degrees. The operation is convenient and highly accurate.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] Working principle: First, place both ends of the conductive adhesive to be tested into the first clamping frame 202 and the second clamping frame 203 respectively. Rotate the bolt 204 to move the pressure plate 205 down, which, together with the fixing protrusion 210, clamps the two ends of the conductive adhesive. At this time, the two ends of the conductive adhesive form a circuit connection with the first conductive groove 305, the second conductive groove 306 and the conductive plate 308 through the conductive sheet 307. Start the device through the control panel 304, and ensure that the power supply box 302, ammeter 309 and other detection mechanisms 3 are in normal working condition. Observe the scale line 206 corresponding to the initial position of the pointer block 211, record the initial length of the conductive adhesive, and then start the servo motor. 208, whose output shaft drives the threaded rod 201 to rotate, causing the connecting block 209 to drive the second clamping frame 203 to slide along the fixed housing 207, forming a distance difference with the first clamping frame 202, stretching the conductive adhesive. During the stretching process, the pointing block 211 moves with the second clamping frame 203, and the stretching length is observed in real time through the scale line 206. At the same time, the ammeter 309 displays the current change in the circuit in real time, reflecting the change in the conductivity of the conductive adhesive. After the preset stretching test is completed, the servo motor 208 is turned off through the control panel 304, the pressure plate 205 is loosened by rotating the bolt 204 in the opposite direction, the conductive adhesive is removed, and the power of the equipment is turned off.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stretchable conductive adhesive strain testing stage, comprising a base (1), characterized in that: A tensioning mechanism (2) is fixedly connected to the upper surface of the base (1), and a detection mechanism (3) is fixedly connected to the outer surface of the tensioning mechanism (2). The stretching mechanism (2) includes a fixed outer shell (207) and a first clamping frame (202) fixedly connected to the upper surface of the base (1). A connecting block (209) is slidably connected to the inner wall of the fixed outer shell (207). A second clamping frame (203) is fixedly connected to the outer surface of the connecting block (209). Bolts (204) are threadedly connected to the outer surfaces of the second clamping frame (203) and the first clamping frame (202). A pressure plate (205) is rotatably connected to the lower end of the bolt (204). The outer surface of the pressure plate (205) is slidably connected to the inner wall of the second clamping frame (203) and the first clamping frame (202). The detection mechanism (3) includes a power supply box (302) fixedly connected to the outer surface of the fixed housing (207). A second wire (303) is fixedly connected to the outer surface of the power supply box (302). A first conductive groove (305) is fixedly connected to the outer surface of the second wire (303). An ammeter (309) is fixedly connected to the outer surface of the first conductive groove (305) via a wire. The other end of the ammeter (309) is fixedly connected to a second conductive groove (306) via a wire. A first wire (301) is fixedly connected to the outer surface of the second conductive groove (306). The first wire (301) is fixedly connected to the outer surface of the power supply box (302). A conductive plate (308) is slidably connected to the inner wall of the second conductive groove (306). The conductive plate (308) is fixedly connected to the inner wall of the second clamping frame (203).

2. The stretchable conductive adhesive strain testing stage according to claim 1, characterized in that: The first conductive groove (305) and the second conductive groove (306) are both embedded in the side of the fixed housing (207), and the inner wall of the first clamping frame (202) is fixedly connected to the outer surface of the conductive plate (308), and the conductive plate (308) in the first clamping frame (202) is fixedly connected to the inner wall of the first conductive groove (305).

3. The stretchable conductive adhesive strain testing stage according to claim 2, characterized in that: The inner walls of the second clamping frame (203) and the first clamping frame (202) are both fixedly connected with conductive sheets (307). The outer surface of the conductive sheet (307) is fixedly connected to the outer surface of the conductive plate (308), and the upper surface of the base (1) is fixedly connected with a control panel (304).

4. The stretchable conductive adhesive strain testing stage according to claim 3, characterized in that: A servo motor (208) is fixedly connected to the outer surface of the fixed housing (207). A threaded rod (201) is fixedly connected to the output shaft of the servo motor (208). The threaded rod (201) is rotatably connected to the inner wall of the fixed housing (207). The outer surface of the threaded rod (201) is threadedly connected to the outer surface of the connecting block (209). The outer surface of the control panel (304) is electrically connected to the outer surface of the servo motor (208) through a wire.

5. The stretchable conductive adhesive strain testing stage according to claim 4, characterized in that: The upper surface of the fixed housing (207) is engraved with scale lines (206), and the upper surface of the second clamping frame (203) is fixedly connected with a pointing block (211).

6. The stretchable conductive adhesive strain testing stage according to claim 5, characterized in that: The inner walls of the second clamping frame (203) and the first clamping frame (202) are both fixedly connected with fixing protrusions (210), and the outer surface of the fixing protrusions (210) is in contact with the lower surface of the conductive sheet (307).

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