Automatic testing device for capacitive touch screen

Abstract

The utility model discloses an automatic testing device for a capacitive touch screen, which relates to the field of capacitive touch screens and comprises a workbench, a testing component is arranged on the workbench in a sliding manner, one end of the testing component is connected with a toothed bar, a driving gear is meshed with one side of the toothed bar, one end of the driving gear is connected with a driven gear, and the other end of the driving gear is meshed with a driven gear. The upper end and the lower end of the driven gear are meshed with a first sliding frame and a second sliding frame respectively, an inserting rod is installed on the first sliding frame, a testing groove is formed in the top of the workbench, and a bottom plate is slidably connected into the testing groove. When the testing assembly slides downwards, the clamping plate is driven to move towards the inner side, so that the capacitive touch screen on the bottom plate is limited and clamped, meanwhile, when the testing assembly is reset subsequently, the bottom plate is driven to be jacked up under the action of the elastic assembly, and the clamping plate is driven to move towards the inner side. In the process, a worker can conveniently take the capacitive touch screen in the test groove.

Description

Technical Field

[0001] The utility model relates to the field of capacitive touch screens, in particular to an automatic testing device for capacitive touch screens. Background Art

[0002] With the development and progress of electronic technology, capacitive touch screens have been widely used to enhance the convenience of electronic products in operation. The structure of a capacitive touch screen is mainly to coat a transparent thin film conductor layer on the glass screen, and then add a protective glass outside the conductor layer. The double glass design can thoroughly protect the conductor layer and the sensor.

[0003] Chinese patent publication number CN103713206B provides an automatic capacitive touch screen testing device. After a transparent substrate moves above the capacitive touch screen, a camera module can capture images of each test point (including assembly corners and touch test points) to obtain various measurement data, thereby determining whether the capacitive touch screen is qualified. In addition to capturing images of the assembly corners of the display panel and sensor panel, the camera module also captures images of the touch test points of the capacitive touch screen, based on which it determines whether the distance between the sensing point and the touch test point is within the allowable range.

[0004] To sum up, during the test of the capacitive touch screen, the above-mentioned structure usually does not limit and fix the capacitive touch screen for the convenience of picking it up, which will cause the capacitive touch screen itself to shift in position during the test, thereby affecting the overall test results. If it is limited and fixed, the subsequent disassembly by the staff will be more cumbersome, thereby reducing the overall test efficiency of the capacitive touch screen. Utility Model Content

[0005] Based on this, the purpose of the present invention is to provide an automatic testing device for capacitive touch screens to solve the problem that the capacitive touch screen itself may shift in position during the test process. If the position is limited, the subsequent disassembly is more cumbersome, thereby reducing the overall testing efficiency of the capacitive touch screen.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a capacitive touch screen automatic testing device, comprising a workbench, a test assembly being slidably arranged on the workbench, one end of the test assembly being connected to a gear rod, and a driving gear being meshed on one side of the gear rod, one end of the driving gear being connected to a driven gear, the upper and lower ends of the driven gear being respectively meshed with a first sliding frame and a second sliding frame, a plug rod being installed on the first sliding frame, a test slot being provided on the top of the workbench, and a base plate cooperating with the plug rod being slidably connected in the test slot, and one end of each of the first sliding frame and the second sliding frame being connected to a clamping plate.

[0007] By adopting the above technical solution, the driven gear is rotated by the action of the gear rod, so the clamping plate is driven to move inward during the downward sliding of the test component, thereby completing the limited clamping of the capacitive touch screen on the bottom plate, ensuring that the capacitive touch screen will not be positionally shifted during the test. At the same time, when the test component is reset later, the bottom plate will be lifted up by the action of the elastic component, which makes it easier for the staff to pick up the capacitive touch screen in the test slot, effectively reducing the overall testing burden.

[0008] The utility model is further configured such that an array of grooves is provided on the inner side of the clamping plate, and a compression spring is connected in the groove, and the other end of the compression spring is connected to a clamping guide column.

[0009] By adopting the above technical solution, when the clamping plate faces the capacitive touch screen with an irregular outer wall, the clamping guide pin will contact the outer wall of the capacitive touch screen first. Then, as the clamping plate slides inward, the clamping guide pin will squeeze the compression spring and slide into the groove at the same time, thereby completing the clamping work of the capacitive touch screen with an irregular outer wall, and further improving the overall clamping stability in this process.

[0010] The utility model is further configured such that a rodless cylinder is installed on the workbench, and a test assembly is slidably provided on the outer wall of the rodless cylinder.

[0011] By adopting the above technical solution, the staff can control the sliding direction and test time of the test component through the action of the rodless cylinder, thereby further improving the overall stability of the device.

[0012] The present invention is further configured such that a guide column is elastically provided at the bottom of the bottom plate, and a socket matched with the insertion rod is provided on the guide column.

[0013] By adopting the above technical solution, the bottom plate is located at an upper position in the test slot in the initial state, and the guide post will move downward during the subsequent process of inserting the insertion rod into the insertion hole.

[0014] The present invention is further configured such that a tooth block is partially provided on the inner side of the gear rod.

[0015] By adopting the above technical solution, the locally arranged tooth blocks facilitate the sliding adjustment of the rodless cylinder control test assembly to any height without changing the clamping position of the clamping plate.

[0016] The present invention is further configured such that both ends of the guide column are located inside the workbench and are respectively connected to elastic components.

[0017] By adopting the above technical solution, when the rod is inserted into the socket, the elastic component itself is in a compressed state. Then, when the rod is pulled out of the socket, the restoring force of the elastic component itself causes the guide column to drive the bottom plate to move upward and reset.

[0018] The present invention is further configured such that the first sliding frame and the second sliding frame are provided with a damping structure in the workbench.

[0019] By adopting the above technical solution, the provision of the damping structure facilitates further improving the overall limiting effect of the capacitive touch screen.

[0020] The present invention is further configured such that the top of the bottom plate is provided with a rough surface.

[0021] By adopting the above technical solution, the provision of the rough surface increases the sliding friction between the capacitive touch screen and the bottom plate, thereby preventing the capacitive touch screen from sliding on the bottom plate.

[0022] In summary, the present invention has the following beneficial effects:

[0023] The utility model places the capacitive touch screen to be tested on the base plate, and then drives the test assembly downward under the action of the rodless cylinder. During this process, the driven gear is rotated by the action of the gear rod. Since the first sliding frame and the second sliding frame are respectively located at the upper and lower ends of the driven gear, the clamping plate is driven to move inward during the downward sliding of the test assembly, thereby completing the limited clamping of the capacitive touch screen on the base plate, ensuring that the capacitive touch screen will not be positionally shifted during the test, and ensuring that the capacitive touch screen test will not be affected. At the same time, when the test assembly is reset subsequently, the base plate will be lifted up by the action of the elastic component, which makes it convenient for the staff to take the capacitive touch screen in the test slot, effectively reducing the overall testing burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the transmission mechanism structure of the utility model;

[0026] Figure 3 It is a cross-sectional view of the utility model;

[0027] Figure 4 For this utility model Figure 3 A magnified view of middle A;

[0028] Figure 5 This is a partial structural diagram of the second embodiment of the present utility model.

[0029] In the figure: 1. Workbench; 2. Test slot; 3. Clamping plate; 4. Test assembly; 5. Base plate; 6. Rodless cylinder; 7. Insert rod; 8. First sliding frame; 9. Second sliding frame; 10. Driven gear; 11. Gear rod; 12. Driving gear; 13. Socket; 14. Guide post; 15. Groove; 16. Compression spring; 17. Clamping guide post. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] The following describes an embodiment of the present invention based on its overall structure.

[0032] Example 1

[0033] A capacitive touch screen automatic testing device, such as Figure 1-Figure 4 As shown, it includes a workbench 1, a test slot 2, a test assembly 4, a clamping mechanism and a reset mechanism. A test slot 2 is provided on the top of the workbench 1, and a base plate 5 is slidingly provided in the test slot 2. The staff places the capacitive touch screen to be tested on the top of the base plate 5, and a rodless cylinder 6 is installed on the workbench 1, and a test assembly 4 is slidingly provided on the outer wall of the rodless cylinder 6. Under the action of the rodless cylinder 6, it is convenient for the staff to control the sliding direction and test time of the test assembly 4, and further improve the overall stability of the device. Since a gear rod 11 is connected to one end of the test assembly 4, and a driving gear 12 is meshed on one side of the gear rod 11, a driven gear 10 is connected to one end of the driving gear 12, and the upper and lower ends of the driven gear 10 are respectively meshed with a first sliding frame 8 and a second sliding frame 9, and one end of the first sliding frame 8 and the second sliding frame 9 are connected to a clamping plate 3 at the base plate 5. When the test component 4 drives the gear rod 11 to slide downward, it will drive the clamping plate 3 to move inward, thereby completing the limit clamping of the capacitive touch screen on the bottom plate 5 to ensure that the capacitive touch screen will not be offset during the test. In addition, a plug rod 7 is installed on the first sliding frame 8, and a guide column 14 is elastically provided at the bottom of the bottom plate 5, and a socket 13 that cooperates with the plug rod 7 is provided on the guide column 14. In the initial state, the bottom plate 5 is located in the upper position of the test slot 2, and the two ends of the guide column 14 are respectively connected to the elastic component in the workbench 1. When the plug rod 7 is inserted into the socket 13, the elastic component itself is in a compressed state. Subsequently, when the plug rod 7 is pulled out of the socket 13, the guide column 14 drives the bottom plate 5 to move upward and reset through the reset force of the elastic component itself. In this process, it is convenient for the staff to take the capacitive touch screen in the test slot 2, effectively reducing the overall testing burden.

[0034] See also Figure 1 and Figure 2 A tooth block is locally provided on the inner side of the gear rod 11. The locally provided tooth block facilitates the sliding adjustment of the test component 4 by the rodless cylinder 6 to any height, and the clamping position of the clamping plate 3 will not change. A rough surface is provided on the top of the base plate 5. The setting of the rough surface increases the sliding friction between the capacitive touch screen and the base plate 5, preventing the capacitive touch screen from sliding on the base plate 5.

[0035] Example 2

[0036] like Figure 5 The shown device is an automatic testing device for capacitive touch screens, and its overall structure is similar to that of the first embodiment, wherein an array of grooves 15 is provided on the inner side of the clamping plate 3, and a compression spring 16 is connected in the groove 15, and a clamping guide post 17 is connected to the other end of the compression spring 16. When the clamping plate 3 faces the capacitive touch screen with an irregular outer wall, the clamping guide post 17 will contact the outer wall of the capacitive touch screen first, and then during the inward sliding of the clamping plate 3, the clamping guide post 17 will squeeze the compression spring 16 and slide into the inside of the groove 15, thereby completing the clamping work of the capacitive touch screen with an irregular outer wall, and further improving the overall clamping stability in this process.

[0037] The working principle of the present utility model is as follows: when in use, the capacitive touch screen to be tested is placed on the top of the bottom plate 5, and then the rodless cylinder 6 is started to drive the test component 4 to slide downward. During this process, the gear rod 11 will drive the driving gear 12 to rotate, and the capacitive touch screen is limited and clamped by the driven gear 10 and the first sliding frame 8 and the second sliding frame 9 at the upper and lower ends. At the same time, the first sliding frame 8 will drive the insertion rod 7 to be stuck in the socket 13 of the guide column 14. At this time, the bottom plate 5 will drive the capacitive touch screen to move into the test slot 2. After the subsequent test is completed, the driven gear 10 will rotate in the opposite direction. During this process, the insertion rod 7 slides out of the socket 13. At this time, under the action of the elastic component, the bottom plate 5 will lift up the tested capacitive touch screen, making it convenient for the staff to pick it up.

[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A capacitive touch screen automatic testing device, comprising a workbench (1), characterized in that: A test assembly (4) is slidably provided on the workbench (1), one end of the test assembly (4) is connected to a gear rod (11), and a driving gear (12) is meshed on one side of the gear rod (11), one end of the driving gear (12) is connected to a driven gear (10), and the upper and lower ends of the driven gear (10) are respectively meshed with a first sliding frame (8) and a second sliding frame (9), and an insertion rod (7) is installed on the first sliding frame (8). A test slot (2) is provided on the top of the workbench (1), and a bottom plate (5) cooperating with the insertion rod (7) is slidably connected in the test slot (2), and one end of each of the first sliding frame (8) and the second sliding frame (9) is connected to a clamping plate (3).

2. The capacitive touch screen automatic testing device according to claim 1, characterized in that: An array of grooves (15) is provided on the inner side of the clamping plate (3), and a compression spring (16) is connected in the groove (15), and the other end of the compression spring (16) is connected to a clamping guide column (17).

3. The capacitive touch screen automatic testing device according to claim 1, characterized in that: A rodless cylinder (6) is installed on the workbench (1), and a test assembly (4) is slidably provided on the outer wall of the rodless cylinder (6).

4. The automatic testing device for capacitive touch screen according to claim 1, characterized in that: A guide column (14) is elastically provided at the bottom of the bottom plate (5), and a socket (13) cooperating with the insertion rod (7) is provided on the guide column (14).

5. The capacitive touch screen automatic testing device according to claim 1, characterized in that: A tooth block is partially provided on the inner side of the toothed rod (11).

6. The automatic testing device for capacitive touch screen according to claim 4, characterized in that: Both ends of the guide column (14) are located inside the workbench (1) and are respectively connected to elastic components.

7. The automatic testing device for capacitive touch screen according to claim 1, characterized in that: The first sliding frame (8) and the second sliding frame (9) are located inside the workbench (1) and are provided with a damping structure.

8. The capacitive touch screen automatic testing device according to claim 1, characterized in that: The top of the bottom plate (5) is provided with a rough surface.

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