CN219038673U - Touch screen testing device - Google Patents
Touch screen testing device Download PDFInfo
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- CN219038673U CN219038673U CN202223280538.1U CN202223280538U CN219038673U CN 219038673 U CN219038673 U CN 219038673U CN 202223280538 U CN202223280538 U CN 202223280538U CN 219038673 U CN219038673 U CN 219038673U
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- touch screen
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- testing device
- placing table
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Abstract
The utility model relates to a touch screen testing device, comprising: a frame; the testing assembly is connected with the rack and provided with a testing position and is suitable for testing the touch screen; the jig placing table is positioned below the test assembly and provided with a placing position, is suitable for placing the touch screen, and is arranged towards the test position; the driving assembly is connected with the jig placing table and is electrically connected with the external electric control assembly so as to drive the jig placing table to move upwards in the height direction and drive the touch screen on the placing position to contact with the testing position for testing. Through the arrangement, the driving assembly can drive the jig placing table to move towards the testing position of the testing assembly according to the signal of the electric control assembly, so that the touch screen to be tested on the jig placing table can be automatically docked or kept away from the testing assembly, the test of the touch screen to be tested is completed, the testing accuracy is high, the testing efficiency is high, and the labor cost investment is reduced.
Description
Technical Field
The utility model relates to the technical field of automation, in particular to a touch screen testing device.
Background
Along with the development of science and technology, the capacitive touch screen is widely applied to mobile phones, tablet computers, vehicle-mounted navigator and other industrial control equipment, and can continue to perform touch operation through touching objects such as fingers, touch pens and the like, so that man-machine interaction is realized.
In the prior art, when a capacitive touch screen is tested, the testing efficiency is extremely low due to the lack of a professional testing device. In addition, in the process of testing the touch screen, the touch screen belongs to fragile products, and damage or breakage of the touch screen is easily caused due to unstable positioning, improper taking and placing and other reasons.
Disclosure of Invention
The utility model aims to provide a touch screen testing device with high testing precision.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a touch screen testing device, comprising:
a frame;
the testing component is connected with the rack and provided with a testing position and is suitable for testing the touch screen;
the jig placing table is positioned below the test assembly and provided with a placing position, is suitable for placing a touch screen and is arranged towards the test position;
the driving assembly is connected with the jig placing table and is electrically connected with the external electric control assembly, so that the jig placing table is driven to move upwards in the height direction, and the touch screen on the placing position is driven to contact with the testing position for testing.
Optionally, in the touch screen testing device, the testing assembly includes a carrier board connected to the frame and a flexible circuit board detachably disposed on the carrier board;
the flexible circuit board comprises a butt joint part, a fixing part arranged around the butt joint part and a plurality of conducting strips arranged on the butt joint part, wherein the fixing part is attached to the side face of the carrying board, and the jig placing table moves upwards so that the tested touch screen is electrically connected with the conducting strips.
Optionally, in the touch screen testing device, the testing assembly further includes a fixing plate, and the fixing plate is disposed on an outer side of the fixing portion, so as to fix the fixing portion with the side surface of the carrier plate.
Optionally, in the touch screen testing device, the testing assembly further includes a buffer layer, and the buffer layer is disposed between the flexible circuit board and the carrier board.
Optionally, in the touch screen testing device, the testing device further includes an elastic component, and the elastic component is connected with the top of the rack and the testing component;
the elastic component include with the first sleeve that the top of frame is connected, at least part set up second sleeve in the first sleeve section of thick bamboo, the telescopic one end of second pass through the elastic component with first telescopic inner wall is connected, the telescopic other end of second with test assembly fixed connection.
Optionally, in the touch screen testing device, the testing device further includes a pressure sensor electrically connected to the external electronic control assembly, and the pressure sensor is adapted to detect a pressure applied to the carrier plate, so that the pressure applied to the carrier plate is kept within a preset range.
Optionally, the carrying plate is provided with a vacuum breaking groove and vacuum holes surrounding the periphery of the vacuum breaking groove. Optionally, in the touch screen testing device, the jig placing table includes a lifting plate connected to the driving assembly, and the placing table is located above the lifting plate.
Optionally, the touch screen testing device further comprises a guide assembly, the guide assembly comprises a connecting block connected with the lifting plate and a guide rail connected with the frame, the connecting block is provided with a guide groove matched with the guide rail, and the driving assembly drives the lifting plate to move in the height direction through the guide rail and the guide groove.
Optionally, in the touch screen testing device, the testing device further includes a clamping component disposed at one side of the placement position, and the clamping component is adapted to clamp and fix the touch screen located on the placement position.
The utility model has the beneficial effects that: according to the test device, the test assembly with the test position, the jig placing table located below the test assembly and the driving assembly connected with the jig placing table are arranged, so that the driving assembly can drive the jig placing table to move towards the test position of the test assembly according to signals of the electric control assembly, the touch screen to be tested on the jig placing table can be automatically docked or kept away from the test assembly, the test of the touch screen to be tested is completed, and the test accuracy is high.
The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a touch screen testing apparatus according to the present utility model;
FIG. 2 is an enlarged view of a portion of the touch screen testing apparatus shown in FIG. 1;
FIG. 3 is a schematic view of a portion of the touch screen testing apparatus shown in FIG. 1;
FIG. 4 is an enlarged view of a portion of the structure of the touch screen testing device shown in FIG. 3;
fig. 5 is a schematic view of a part of the structure of the touch screen testing apparatus shown in fig. 3 in another direction.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. The present application will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
In this application, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present application.
Referring to fig. 1-5, a touch screen testing device according to a preferred embodiment of the utility model is suitable for performing a functional test on a touch screen of a computer tablet. In this embodiment, the functional test is two, one is to test and calibrate the touch display offset of the touch screen, and the other is to test the capacitance and resistance on the touch screen.
In this embodiment, the touch screen testing device includes a frame 1, an electric control component disposed in the frame 1, a testing component 2 connected with the frame 1, a jig placing table 3 located below the testing component 2, and a driving component connected with the jig placing table 3. Wherein the test assembly 2 has a test site 21 adapted to test a touch screen located at the test site 21; the jig placing table 3 is provided with a placing position 31, the placing position 31 is suitable for placing a touch screen to be tested, the placing position 31 is arranged towards the testing position 21, and is close to the testing position 21 or far away from the testing position 21 under the action of external force; the driving assembly is electrically connected with the electric control assembly and is suitable for driving the jig placing table 3 to move in the height direction so as to drive the touch screen to be tested on the placing position 31 to contact with the testing position 21 for testing. The method comprises the following steps: the driving assembly drives the jig placing table 3 to move upwards so that the touch screen to be tested reaches the test position 21 to be in contact with the testing assembly 2, and the touch screen is tested; after the test is finished, the driving assembly drives the jig placing table 3 to move downwards, returns to the original position and tests the next touch screen to be tested. According to the touch screen testing device, the touch screen can be tested and calibrated simultaneously to obtain the touch display offset and the test of capacitance and resistance on the touch screen.
The jig placing table 3 comprises a lifting plate 32 connected with a driving assembly, and the placing position 31 is located above the lifting plate 32. The test device further comprises a guide assembly 4, the guide assembly 4 comprises a connecting block 41 connected with the lifting plate 32 and a guide rail 42 connected with the frame 1, the connecting block 41 is provided with a guide slot 411 matched with the guide rail 42, and the driving assembly drives the lifting plate 32 to move in the height direction through the guide rail 42 and the guide slot 411. In this embodiment, the driving component may be a cylinder or a motor. When the driving component is a cylinder, the output shaft of the cylinder is directly connected with the lifting plate 32; when the driving assembly is a motor, the motor output shaft is connected with the lifting plate 32 through the transmission assembly, and the transmission assembly converts the rotary motion of the motor output shaft into the linear motion of the lifting plate 32 so as to realize the movement of the lifting plate 32. It should be noted that the transmission assembly is a conventional technology, and will not be described herein.
In this embodiment, the testing device further includes a clamping component 5 disposed at one side of the placement position 31, where the clamping component 5 is adapted to clamp and fix the touch screen located on the placement position 31, so as to prevent the touch screen to be tested on the placement position 31 from shifting.
It should be noted that, in this embodiment, the placement position 31 is provided with a first pin module 311 connected to the electronic control assembly, and the touch screen is provided with a connection pin adapted to the first pin module 311. When the touch screen to be tested is placed in the placement position, the connection pins on the touch screen are connected with the first pin module 311, so that the electric control assembly can test the capacitance and the resistance on the touch screen.
The test assembly 2 comprises a carrier plate 22 connected to the frame 1 and a flexible circuit board 23 detachably arranged on the carrier plate 22. In this embodiment, the flexible circuit board 23 is adapted to be electrically connected to a touch screen to be tested, so as to test the touch screen. The flexible circuit board 23 is detachably arranged on the carrier board 22 so as to replace different flexible circuit boards 23 according to the specifications of the touch screen.
Specifically, a plurality of conductive sheets 233 are disposed on a portion of the flexible circuit board 23, and another portion is adapted to be attached to a side surface of the carrier board 22 so as to attach the entire flexible circuit board 23 to the carrier board 22. When the touch display offset of the touch screen needs to be tested, the jig placing table 3 moves upwards under the action of the driving component, so that the butt joint points on the touch screen can be in butt joint with the plurality of conductive sheets 233 on the flexible circuit board 23, and the plurality of conductive sheets 233 on the flexible circuit board 23, the touch screen and the electric control component form a loop, so that the touch display offset of the touch screen is tested. In this embodiment, the positions of the plurality of conductive pieces 233 are set to coincide with the positions of the butt contacts on the touch panel so as to be in full contact. In this embodiment, a plurality of conductive plates 233 are disposed along the edges of the carrier plate 22, and square mark areas are disposed at four corners. It should be noted that, the connection and the testing manner of the flexible circuit board 23 and the touch screen are all of the prior art, and are not described herein.
In this embodiment, the carrying plate 22 is provided with a vacuum breaking groove 221 and vacuum holes 222 surrounding the vacuum breaking groove 221. A negative pressure piece (not shown) communicated with the vacuum breaking groove 221 and the vacuum hole 222 is arranged above the object carrying plate 22, when the tested touch screen is connected with the flexible circuit board 23, the negative pressure piece generates negative pressure so that a certain negative pressure is generated between the flexible circuit board 23 and the tested touch screen, the flexible circuit board 23 can be further fixed, and the flexible circuit board 23 can be fully contacted with the tested touch screen; when the test of the tested touch screen is completed, the negative pressure piece stops working, and external air flows into the space between the flexible circuit board 23 and the tested touch screen through the vacuum breaking groove 221 and the vacuum holes 222, so that the fact that the tested touch screen cannot be automatically separated from the flexible circuit board 23 due to negative pressure is prevented.
The test assembly 2 further includes a fixing plate 24, where the fixing plate 24 is disposed outside the fixing portion 232, and in this embodiment, for convenience of description, a portion of the flexible circuit board 23 where the conductive sheet 233 is disposed is defined as a docking portion 231, and a portion of the flexible circuit board that is attached to the carrier board 22 is defined as a fixing portion 232. In this embodiment, the fixing portion 232 is disposed along the periphery of the abutting portion 231, and the fixing portion 232 is fixed to the side of the carrier plate 22 through the fixing plate 24. The purpose of this is, on the one hand, to be able to fix the flexible printed circuit board 23 to the carrier plate 22; on the other hand, by fixing the fixing portion 232 so that the abutting portion 231 has a tension, the conductive sheet 233 is sufficiently contacted with the abutting portion 231 on the touch panel, and the effect of testing the touch panel is prevented from being affected by wrinkles or the like of the abutting portion 231 of the flexible circuit board 23. In other embodiments, the fixing portion 232 may be fixed to the carrier plate 22 by other fixing methods, for example, the fixing portion 232 is fixed by the cooperation of a magnetic member and an absorbing member, or by other fixing methods, which are not specifically limited herein, as long as the above-mentioned effects can be achieved.
The test assembly 2 further includes a buffer layer (not shown) disposed between the flexible circuit board 23 and the carrier board 22 to prevent the fixture placement table 3 from being excessively stressed by the driving assembly to damage the touch screen or the flexible circuit board 23. It should be noted that, the buffer layer may generate a certain deformation under the action of external force, so that the detected touch screen can be more fully contacted with the conductive sheet on the flexible circuit board 23.
In order to further protect the flexible circuit board 23 and the touch screen, in this embodiment, the testing device further includes an elastic component 6, where the elastic component 6 connects the top 11 of the rack 1 with the testing component 2; the elastic component 6 includes a first sleeve 61 connected with the top 11 of the frame 1, and a second sleeve 62 at least partially disposed in the first sleeve 61, one end of the second sleeve 62 is connected with the inner wall of the first sleeve 61 through an elastic member, and the other end of the second sleeve 62 is fixedly connected with the test component 2.
The testing device further comprises a pressure sensor 7 electrically connected with the external electric control assembly, the pressure sensor 7 is connected with the elastic assembly 6, so that the carrying plate 22 moves towards the pressure sensor 7 and is pressed after being pressed by the jig placing table 3, the pressure sensor 7 detects the pressure born by the carrying plate 22, the pressure born by the carrying plate 22 is monitored in real time, and the pressure sensor is matched with the driving assembly, so that the pressure born by the carrying plate 22 is kept within a preset range. Specifically, a pressure threshold range is set in the electric control assembly, and the threshold range is a pressure range which can be born by the touch screen and is obtained through testing in practical application. When the tested touch screen is required to be tested, the jig placing table 3 is close to the objective table 22 and abuts against the objective table 22, at this time, the objective table 22 abuts against the pressure sensor 7 through the elastic component 6, the pressure sensor 7 monitors the pressure borne by the objective table 22 in real time, meanwhile, the electric control component controls the driving component to abut against the objective table 22, and the pressure borne by the objective table 22 is kept within the pressure range borne by the flexible circuit board 23, so that the tested touch screen is fully contacted with the conductive sheet on the flexible circuit board 23, and the best test effect is achieved.
In this embodiment, the touch screen testing device further comprises a camera arranged on one side of the flexible circuit board 23, and the camera is connected with the electric control assembly in a training way, so that the touch screen to be tested can be calibrated conveniently. The calibration process is as follows: when the touch screen to be tested is fully contacted with the flexible circuit board 23, the camera photographs four corners of the touch screen so that the four corners of the touch screen coincide with the center position of the camera, when the touch screen is lightened, the camera photographs through four square mark areas on the flexible circuit board to obtain pixel points on the touch screen and square mark areas projected onto the touch screen by the flexible circuit board 23, and the offset is obtained by comparing the square mark areas projected onto the touch screen with the positions of the four corners of the actual touch screen; meanwhile, the contact pads 233 on the touch screen are fully contacted with the plurality of conductive sheets 233 on the flexible circuit board 23 to obtain the touch display offset of the touch screen, and the two measurement results are transmitted to the electric control assembly to realize touch screen calibration.
To sum up: the working process of the touch screen testing device provided by the utility model is as follows: attaching the flexible circuit board to the object carrying board, and attaching and fixing the four fixing parts to the side surfaces of the object carrying board through the fixing parts so as to flatten the butt joint parts of the flexible circuit board; placing the touch screen to be tested on a jig placing table, fixing the touch screen through a clamping component, controlling the driving component to work by an electric control component, enabling the driving component to drive a lifting plate of the jig placing table to move upwards under the action of a guiding component, and driving the touch screen to be tested to move upwards to be in contact with and electrically connected with a flexible circuit board until the touch screen to be tested is tested; after the touch screen is tested, the process that the jig placing table faces the objective table is as follows: the touch screen is contacted with the flexible circuit board and is abutted against the flexible circuit board, and the buffer layer is deformed at the moment; when the buffer layer can not further deform and the jig placing table continuously supports against the objective table, under the action of the elastic component, the whole testing component moves towards the top end of the frame so as to support the pressure sensor, namely the pressure borne by the carrier plate, the electric control component controls the driving component to drive the jig placing table to support the carrier plate, and the pressure borne by the carrier plate is controlled to be kept within the pressure threshold range arranged in the electric control component, so that the tested touch screen can be fully contacted with the flexible circuit board, and better testing accuracy is achieved. In this embodiment, all the control programs and circuits are of the existing structure, and the control programs and circuits are not modified correspondingly, such as logic circuits and judgment circuits, which are of the conventional structure and will not be described herein.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. A touch screen testing device, comprising:
a frame;
the testing component is connected with the rack and provided with a testing position and is suitable for testing the touch screen;
the jig placing table is positioned below the test assembly and provided with a placing position, is suitable for placing a touch screen and is arranged towards the test position;
the driving assembly is connected with the jig placing table and is electrically connected with the external electric control assembly, so that the jig placing table is driven to move upwards in the height direction, and the touch screen on the placing position is driven to contact with the testing position for testing.
2. The touch screen testing device of claim 1, wherein the testing assembly comprises a carrier board coupled to the frame and a flexible circuit board removably disposed on the carrier board;
the flexible circuit board comprises a butt joint part, a fixing part arranged around the butt joint part and a plurality of conducting strips arranged on the butt joint part, wherein the fixing part is attached to the side face of the carrying board, and the jig placing table moves upwards so that the tested touch screen is electrically connected with the conducting strips.
3. The touch screen testing device of claim 2, wherein the testing assembly further comprises a fixing plate disposed outside the fixing portion to fix the fixing portion to the side of the carrier plate.
4. The touch screen testing device of claim 2, wherein the testing assembly further comprises a buffer layer disposed between the flexible circuit board and the carrier board.
5. The touch screen testing device of claim 2, further comprising an elastic assembly connecting the top of the frame with the testing assembly;
the elastic component include with the first sleeve that the top of frame is connected, at least part set up second sleeve in the first sleeve section of thick bamboo, the telescopic one end of second pass through the elastic component with first telescopic inner wall is connected, the telescopic other end of second with test assembly fixed connection.
6. The touch screen testing device of claim 5, further comprising a pressure sensor electrically connected to an external electronic control assembly, the pressure sensor adapted to detect a pressure experienced by the carrier plate such that the pressure experienced by the carrier plate is maintained within a predetermined range.
7. The touch screen testing device of claim 2, wherein the carrier plate is provided with a vacuum breaking groove and vacuum holes surrounding the vacuum breaking groove.
8. The touch screen testing device of claim 1, wherein the jig placement stage comprises a lift plate coupled to the drive assembly, the placement being above the lift plate.
9. The touch screen testing device of claim 8, further comprising a guide assembly including a connection block coupled to the lift plate and a guide rail coupled to the frame, the connection block having a guide slot mated to the guide rail, the drive assembly driving the lift plate to move in a height direction through the guide rail and the guide slot.
10. The touch screen testing device of claim 1, further comprising a clamping assembly disposed on one side of the placement site, the clamping assembly adapted to clamp a touch screen positioned on the placement site in a fixed position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223280538.1U CN219038673U (en) | 2022-12-07 | 2022-12-07 | Touch screen testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223280538.1U CN219038673U (en) | 2022-12-07 | 2022-12-07 | Touch screen testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219038673U true CN219038673U (en) | 2023-05-16 |
Family
ID=86276870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223280538.1U Active CN219038673U (en) | 2022-12-07 | 2022-12-07 | Touch screen testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219038673U (en) |
-
2022
- 2022-12-07 CN CN202223280538.1U patent/CN219038673U/en active Active
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