Display bump test equipment
By designing the display drum kit testing equipment, using positioning and compression vehicles and laser positioning sensors to detect the drum kit on the display screen, the problem of difficulty in efficiently detecting and eliminating the drum kit in the prior art is solved, and the product pass rate is improved.
Patent Information
- Application Number
- CN202421324287.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-12
AI Technical Summary
During the production process, existing industrial touch screens need to squeeze the four sides of the screen, resulting in the problem of bulging in the middle, making it difficult to efficiently detect and eliminate bulging through existing means, which affects the product qualification rate.
Design a display bulge testing equipment, including a positioning and closure vehicle and a laser positioning sensor, and place the monitor to be tested as a whole by positioning and locating the entire display, and use a laser positioning sensor to detect the distance between the screen surface and the sensor to determine whether the screen is on the center. Convex bulge.
It realizes high-precision detection of the problem of bulging in the middle of the display screen, improves the product's factory pass rate, and avoids the inflow of bad products into the market.
Smart Images
Figure CN222505335U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automatic detection equipment, in particular to a display bulge testing device. Background Art
[0002] The touch screens supplied are used to cooperate with the automated production lines for touch control, information display, etc. There are a large number of touch screen applications on the automated production lines, and almost every inspection station is equipped with a touch screen or display. Therefore, the market demand for touch screens is large. However, touch screens are electronic products that require frequent manual contact with the screen, and the quality requirements of the screen are high. The existing industrial touch screens need to be squeezed on all four sides of the screen during production to ensure screen positioning and the necessary waterproof requirements under working conditions, which leads to occasional bulging in the middle of the screen. In order to perform necessary quality inspections on such display screens to ensure that bulging products do not flow into qualified products, we need to use automated equipment to implement automatic inspections. Utility Model Content
[0003] The purpose of the utility model is to provide a display bulge testing device to fully detect the screen with occasional bulges in the middle to avoid the problem of defective products caused by bulges flowing into qualified products, and at the same time improve the factory qualification rate of such touch display screen products.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A display bulge testing device includes a positioning and pressing carrier, a laser positioning sensor and a power control cabinet.
[0006] The positioning and pressing carrier is provided with a base, a support platform, a positioning plate and a pressing cover plate, and a gas spring pressing assembly that drives the pressing cover plate to realize hinged flipping. The base is placed on the power control cabinet, and a support platform is arranged inside the base. The support platform includes top support springs and top support rods arranged at four corners to ensure that the support platform is forced to bounce upward. A positioning plate is arranged on the upper surface of the support platform, and the positioning plate is provided with a positioning groove that matches the base of the display to be tested to ensure that the placed display is accurately positioned. A laser positioning sensor is arranged in the center of the lower end surface of the pressing cover plate.
[0007] The laser positioning sensor cooperates with the electrical signal provided by the power control cabinet to perform bulge detection on the screen of the display to be tested placed flat below, and determines whether bulge occurs after the four sides of the display are pressed together based on the distance from the screen surface to the laser positioning sensor.
[0008] Furthermore, the gas spring pressing assembly includes a rear locating pin, a front locating pin, a connecting rod and a gas spring arranged on both sides of the base, as well as a front hinge plate and a pressing handle.
[0009] Furthermore, the base, connecting rod, gas spring and front hinged plate form a four-bar linkage, and with the rear positioning pin and the front positioning pin as fulcrums, the gas spring generates a reverse thrust to press the front hinged plate connected to the front positioning pin toward the base. The front hinged plate is connected to both sides of the pressed cover plate, thereby pressing the pressed cover plate tightly against the base.
[0010] Furthermore, a control switch is provided at the front end of the power control cabinet, and is equipped with a keyboard and mouse drawer to facilitate parameter calibration of the laser positioning sensor.
[0011] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:
[0012] The display bulge testing equipment uses a positioning and pressing carrier to place and position the display to be tested as a whole, and accurately presses it into position. It uses a laser positioning sensor to detect the distance from the screen surface to the laser positioning sensor to determine whether there is a bulge in the center of the screen. The detection accuracy is high. As long as the distance from the center of the screen to the laser positioning sensor is within the threshold of the compliant qualified size, it is determined that the display has no bulge problem, thereby improving the factory qualification rate of such touch display products. It is practical and convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the positioning and pressing carrier described in this embodiment;
[0014] Figure 2 This is a side plan view of the display bulge testing device of this embodiment;
[0015] Figure 3 This is a side plan view of the power control cabinet described in this embodiment;
[0016] Figure 4 is a schematic structural diagram of the support platform described in this embodiment;
[0017] Among them: 1-handle, 2-left connecting rod, 3-laser positioning sensor, 4-pressed cover, 5-front hinge plate, 6-gas spring, 7-right connecting rod, 8-support table, 9-display, 10-touch screen, 11-power control cabinet, 12-wire control socket, 13-control switch, 14-power supply equipment, 15-industrial computer, 16-top support spring, 17-display data connector, 18-positioning plate. DETAILED DESCRIPTION
[0018] The technical solution of the present utility model will be clearly and completely described in the following in combination with the accompanying drawings in the form of embodiments.
[0019] See also Figures 1 to 4This embodiment provides a display bulge test device, including a positioning and pressing carrier, a laser positioning sensor 3 and a power control cabinet 11. The positioning and pressing carrier is provided with a base, a support platform 8, a positioning plate 18 and a pressing cover plate 4, and a gas spring pressing component that drives the pressing cover plate 4 to realize hinged flipping. The base is placed on the power control cabinet 11, and a support platform 8 is provided in the base. A wire control socket 12 is provided at the rear of the base to facilitate the expansion of wiring and reserve more electrical performance tests for the display. Figure 4 The support platform 8 includes support springs 16 and support rods arranged at the four corners to ensure that the support platform 8 is forced to bounce upward. A positioning plate 18 is arranged on the upper end surface of the support platform 8. The positioning plate 18 is provided with a positioning groove that matches the base of the display 9 to be tested to ensure that the placed display 9 is accurately positioned. A laser positioning sensor 3 is arranged in the center of the lower end surface of the pressed cover plate 4.
[0020] See also Figure 1 and Figure 4 The laser positioning sensor 3 cooperates with the electrical signal provided by the power control cabinet 11 to perform bulge detection on the screen of the display 9 to be tested which is placed flat below, and determines whether bulge occurs after the four sides of the display 9 are pressed together based on the distance from the screen surface to the laser positioning sensor 3. In addition, the convex shape variables at different positions of the screen can be detected according to different numbers of laser positioning sensors, and the detection accuracy is high. As long as the distance from the center of the screen to the laser positioning sensor is within the threshold of the compliant qualified size, it is determined that the display has no bulge problem.
[0021] See also Figure 1 The gas spring pressing assembly includes a rear positioning pin, a front positioning pin, a connecting rod and a gas spring 6 arranged on both sides of the base, as well as a front hinge plate 5 and a pressing handle 1.
[0022] See also Figure 1 The base, connecting rod, gas spring 6 and front hinged plate 5 form a four-bar linkage, and with the rear positioning pin and the front positioning pin as fulcrums, the gas spring 6 generates a reverse thrust to press the front hinged plate 5 connected to the front positioning pin toward the base. The front hinged plate 5 is connected to both sides of the pressed cover plate 4, thereby pressing the pressed cover plate 4 tightly against the base.
[0023] See also Figure 2 A control switch 13 is provided at the front end of the power control cabinet 11, and is equipped with a keyboard and mouse drawer, so as to facilitate manual parameter calibration of the laser positioning sensor 3, so as to adapt to the detection needs of displays of different specifications.
[0024] The above describes in detail the implementation modes of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation modes. Various changes, modifications, substitutions and variations can be made within the knowledge scope of ordinary technicians in the field without departing from the purpose of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.
Claims
1. A display bulge testing device, comprising a positioning and pressing carrier, a laser positioning sensor (3) and a power control cabinet (11), characterized in that: The positioning and pressing carrier is provided with a base, a support platform (8), a positioning plate (18) and a pressing cover plate (4), and a gas spring pressing assembly that drives the pressing cover plate (4) to realize hinged flipping. The base is placed on a power control cabinet (11), and a support platform (8) is arranged inside the base. The support platform (8) includes top support springs (16) and top support rods arranged at four corners. The upper end surface of the support platform (8) is provided with a positioning plate (18), and the center of the lower end surface of the pressing cover plate (4) is provided with a laser positioning sensor (3). The laser positioning sensor (3) cooperates with the electrical signal provided by the power control cabinet (11) to perform bulge detection on the screen of the display (9) to be tested which is placed flat below, and determines whether bulges are generated after the four sides of the display (9) are pressed together based on the distance from the screen surface to the laser positioning sensor (3).
2. The display bulge testing device according to claim 1, characterized in that: The gas spring pressing assembly comprises a rear positioning pin, a front positioning pin, a connecting rod and a gas spring (6) arranged on both sides of the base, as well as a front hinge plate (5) and a pressing handle (1).
3. The display bulge testing device according to claim 2, characterized in that: The base, connecting rod, gas spring (6) and front hinged plate (5) form a four-bar linkage, and the rear positioning pin and the front positioning pin are used as fulcrums. The gas spring (6) generates a reverse thrust force to press the front hinged plate (5) connected to the front positioning pin toward the base. The front hinged plate (5) is connected to both sides of the pressing cover plate (4), thereby pressing the pressing cover plate (4) tightly against the base.
4. The display bulge testing device according to claim 1, characterized in that: The positioning plate (18) is provided with a positioning groove for precise positioning in cooperation with the base of the display to be tested (9).
5. The display bulge testing device according to claim 1, characterized in that: The front end of the power control cabinet (11) is provided with a control switch (13) and is equipped with a keyboard and mouse drawer.