Positioning clamp for liquid crystal screen inspection

Abstract

The invention provides a positioning clamp for liquid crystal screen inspection, and relates to the field of detection clamp equipment. The positioning clamp for liquid crystal screen inspection comprises a main box body, a working table plate is fixedly arranged at the top end of the main box body, four first sliding grooves are formed in the top of the working table plate, two longitudinal transmission structures are fixedly arranged in the main box body, and two transmission box structures are arranged at the top of the working table plate; and the two transmission box structures realize longitudinal relative sliding through two longitudinal transmission structures in the main box body. In the process of detecting the liquid crystal display screen, the liquid crystal display screen can be quickly fixed only by plugging four angles of the liquid crystal display screen into the clamp placing grooves of the fixing clamp, and tight fitting and fixing are realized by controlling the movement of the transmission box body and the fixing clamp, so that the liquid crystal display screen is quickly fixed, clamped and positioned; the use is greatly facilitated, and the detection efficiency of the liquid crystal screen is improved.

Description

Technical Field

[0001] The present invention relates to the field of detection fixture equipment, and specifically to a positioning fixture for liquid crystal screen inspection. Background Art

[0002] During the manufacturing and processing of liquid crystal screens, it is necessary to clamp and position the liquid crystal screens to ensure the accuracy and consistency of processing. In the early stage, a simple positioning method was that workers directly placed the panel on a simple rack for inspection. The liquid crystal panel was not fixed. It was not easy to fix some traditional positioning fixtures for liquid crystal displays, and the fixtures were difficult to be applicable to liquid crystal screens of different sizes and could not be flexibly adjusted to meet the detection requirements of various specifications, which easily caused the liquid crystal screen to shift or shake during processing or inspection, affecting the processing quality or detection result. Therefore, in order to solve these problems, the present invention proposes a positioning fixture for liquid crystal screen inspection, thereby improving the stability, adaptability and operation convenience of the fixture, meeting the detection requirements of different types and sizes of liquid crystal screens, and ensuring the smooth progress of the detection process and the accuracy of the detection result. Summary of the Invention

[0003] (I) Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides a positioning fixture for liquid crystal screen inspection. The positioning fixture is arranged on a transmission box body that can move longitudinally. Two transmission box bodies can move synchronously towards each other, and two positioning fixtures on each transmission box body can also move synchronously towards each other. The fixture placement slots of each fixed fixture are opened at a 90-degree corner and fit with the four corners of the liquid crystal screen. During the process of detecting the liquid crystal display screen, only need to insert the four angles of the liquid crystal display screen into the fixture placement slots of the fixed fixture to quickly fix it, and by controlling the movement of the transmission box body and the fixed fixture, close fitting fixation can be achieved, so as to quickly fix and clamp the liquid crystal display screen for positioning, which greatly facilitates the use and improves the detection efficiency of the liquid crystal screen.

[0004] (II) Technical Solutions To achieve the above objectives, the present invention is realized through the following technical solutions: A positioning fixture for liquid crystal screen inspection, including a main box body. A workbench board is fixedly arranged at the top of the main box body. Four first sliding slots are opened at the top of the workbench board. Two longitudinal transmission structures are fixedly arranged inside the main box body. Two transmission box structures are arranged at the top of the workbench board. The two transmission box structures realize longitudinal relative sliding through the two longitudinal transmission structures inside the main box body. Two fixed fixtures are arranged at the top of each of the two transmission box structures. The two fixed fixtures of each transmission box structure slide horizontally relative to each other; Through the above technical solution, by setting a transmission box structure and a fixed fixture structure that move relative to each other, the four fixed fixtures can be scaled in a central radial shape, so as to quickly fit liquid crystal screens of different sizes for positioning and clamping fixation.

[0005] Preferably, each of the two longitudinal transmission structures has a first motor fixedly installed on the inner wall of the main box body (1). The two first motors are synchronous motors. The output ends of the two first motors are fixedly provided with first transmission shafts. First bidirectional thread regions are fixedly provided on the two first transmission shafts, and the two first bidirectional threads on each first transmission shaft have opposite thread directions.

[0006] Preferably, a first sliding seat is slidably arranged on each of the two first bidirectional threads on each first transmission shaft. The tops of the two first sliding seats pass through the workbench plate and are fixedly connected to the transmission box structure. A first limit support rod is fixedly provided at the top of each first transmission shaft inside the main box body, and each first limit support rod penetrates and slidably supports the two first sliding seats; Through the above technical solution, by means of two synchronous motors, the sliding seats on the two transmission shafts can move synchronously towards each other, so that the two transmission boxes on the top of the workbench plate can move synchronously towards each other or in the opposite direction.

[0007] Preferably, the two transmission box structures are both supported by the first sliding seats on two different first transmission shafts. The two transmission box structures are each composed of a transmission box body and a motor box. Second motors are fixedly provided inside the two motor boxes. The two second motors are synchronous motors. The output ends of the two second motors are fixedly provided with second transmission shafts, and the two second transmission shafts penetrate and are arranged inside the transmission box body.

[0008] Preferably, second bidirectional thread regions are fixedly provided on the two second transmission shafts. The two second bidirectional threads on each second transmission shaft have opposite thread directions. A second sliding seat is slidably arranged on each second bidirectional thread, and a fixed fixture is fixedly installed at the top of each second sliding seat through a second sliding groove of the transmission box body.

[0009] Preferably, a partition is fixedly provided in the middle of the inner parts of the two transmission box bodies. Second limit support rods penetrate and are arranged below the second transmission shafts inside the two transmission box bodies. Each second limit support rod penetrates and slidably supports the two second sliding seats; Through the above technical solution, the fixed clamps at the tops of the two transmission boxes move synchronously in opposite or the same directions through the operation of two synchronous motors. Cooperating with the synchronous movement of the two transmission boxes, the four fixed clamps can move in a radially scaled manner centered on the workbench plate, thereby realizing the fixed clamping of liquid crystal screens of different sizes.

[0010] Preferably, a clamp placement groove is provided on each of the four fixed clamps. Wear-resistant buffer pads are wrapped around the bottom and two inner side walls of the clamp placement groove of each fixed clamp. The opening directions of the clamp placement grooves of the four fixed clamps all face the center of the workbench plate.

[0011] Preferably, a knob is provided on the top of each of the four fixed clamps. The bottom of each knob controls a fixed clamping plate through a screw. Each fixed clamping plate is located at the inner top of the clamp placement groove of the fixed clamp. A wear-resistant pad for the clamping plate is fixedly provided on the top of each fixed clamping plate; Through the above technical solution, the clamping placement grooves of the four fixed clamps are opened in two directions, fitting the four corners of the liquid crystal screen. The knobs on the top can control the lifting of the fixed clamping plates, thereby realizing the fixed clamping of the liquid crystal display screen.

[0012] (III) Beneficial effects The present invention provides a positioning fixture for liquid crystal screen inspection. It has the following beneficial effects: The present invention provides a positioning fixture for liquid crystal screen inspection. The positioning fixture is arranged on a transmission box that can move longitudinally. The two transmission boxes can move synchronously in opposite directions, and the two positioning clamps on each transmission box can also move synchronously in opposite directions. The clamp placement grooves of each fixed clamp are opened at 90-degree corners, fitting the four corners of the liquid crystal screen. During the process of inspecting the liquid crystal display screen, only need to insert the four corners of the liquid crystal display screen into the clamp placement grooves of the fixed clamps to quickly fix it and, by controlling the movement of the transmission box and the fixed clamp, achieve tight fitting and fixation, thereby quickly fixing and positioning the liquid crystal display screen, which greatly facilitates the use and improves the inspection efficiency of the liquid crystal screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall axonometric view of the positioning fixture for liquid crystal screen inspection of the present invention; Figure 2 It is a front view of the positioning fixture for liquid crystal screen inspection of the present invention; Figure 3 It is a side sectional view of the main box body of the positioning fixture for liquid crystal screen inspection of the present invention; Figure 4 It is a schematic diagram of the transmission structure of the transmission box of the positioning fixture for liquid crystal screen inspection of the present invention; Figure 5Schematic diagram of the fixture drive structure of the positioning fixture for liquid crystal display inspection of the present invention; Figure 6 Schematic diagram of the structure of the positioning fixture of the positioning fixture for liquid crystal display inspection of the present invention.

[0014] Among them, 1. Main box body; 2. Workbench board; 201. First sliding groove; 3. Fixed fixture; 301. Fixture placement groove; 302. Wear-resistant buffer pad; 303. Rotary knob; 304. Fixed clamping plate; 305. Clamping plate wear-resistant pad; 4. Transmission box structure; 401. Transmission box body; 402. Motor box; 403. Second motor; 404. Second transmission shaft; 405. Second double-thread; 406. Partition board; 407. Second limit support rod; 408. Second sliding groove; 409. Second sliding seat; 5. Longitudinal transmission structure; 501. First motor; 502. First transmission shaft; 503. First double-thread; 504. First sliding seat; 505. First limit support rod. Specific embodiments

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention. In the description of this application, it should be noted that the terms used here are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to this application. For the convenience of description, the dimensions of each part shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0016] Embodiment 1: As Figure 1-6As shown in the figure, an embodiment of the present invention provides a positioning fixture for liquid crystal screen inspection, including a main box body 1. A workbench plate 2 is fixedly arranged at the top of the main box body 1. Four first sliding grooves 201 are opened at the top of the workbench plate 2. Two longitudinal transmission structures 5 are fixedly arranged inside the main box body 1. Two transmission box structures 4 are arranged at the top of the workbench plate 2. The two transmission box structures 4 realize longitudinal relative sliding through the two longitudinal transmission structures 5 inside the main box body 1. Two fixing fixtures 3 are arranged at the top of each of the two transmission box structures 4. The two fixing fixtures 3 of each transmission box structure 4 slide horizontally relative to each other. By setting the relatively moving transmission box structure and the fixing fixture structure, the four fixing fixtures can be scaled in a central radial manner, so as to quickly fit liquid crystal screens of different sizes for positioning and clamping fixation; Each of the two longitudinal transmission structures 5 has a first motor 501 fixedly installed on the inner wall of the main box body 1. The output ends of the two first motors 501 are fixedly provided with first transmission shafts 502. First bidirectional thread 503 regions are fixedly arranged on the two first transmission shafts 502. The thread directions of the two first bidirectional threads 503 on each first transmission shaft 502 are opposite. A first sliding seat 504 is slidably arranged on each of the two first bidirectional threads 503 on each first transmission shaft 502. The tops of the two first sliding seats 504 pass through the workbench plate 2 and are fixedly connected to the transmission box structure 4. A first limit support rod 505 is fixedly arranged at the top of each first transmission shaft 502 inside the main box body 1. Each first limit support rod 505 penetrates and slidably supports the two first sliding seats 504. Through the two synchronous motors, the sliding seats on the two transmission shafts can move synchronously in opposite directions, so that the two transmission boxes at the top of the workbench plate can move synchronously in the same or opposite directions; The two transmission box structures 4 are both supported by the first sliding seats 504 on two different first transmission shafts 502. The two transmission box structures 4 are each composed of a transmission box body 401 and a motor box 402. Inside each of the two motor boxes 402, a second motor 403 is fixedly arranged. At the output ends of the two second motors 403, second transmission shafts 404 are fixedly arranged. The two second transmission shafts 404 penetrate through the inside of the transmission box body 401. On the two second transmission shafts 404, second double-thread 405 regions are fixedly arranged. The thread directions of the two second double-threads 405 on each second transmission shaft 404 are opposite. On each second double-thread 405, a second sliding seat 409 is slidably arranged. At the top of each second sliding seat 409, a fixing clamp 3 is fixedly installed through the second sliding groove 408 of the transmission box body 401. In the middle of the inside of the two transmission box bodies 401, a partition 406 is fixedly arranged. Below the second transmission shafts 404 in the inside of the two transmission box bodies 401, second limit support rods 407 penetrate through. Each second limit support rod 407 slidably supports the two second sliding seats 409. The fixing clamps at the tops of the two transmission box bodies can move synchronously in opposite or same directions through the operation of two synchronous motors, and cooperate with the synchronous movement of the two transmission boxes, so that the four fixing clamps can move in a radially scaled manner centered on the workbench plate, thereby realizing the fixed clamping of liquid crystal screens of different sizes; On each of the four fixing clamps 3, a clamp placement groove 301 is opened. At the bottom and two inner side walls of the clamp placement groove 301 of each fixing clamp 3, wear-resistant buffer pads 302 are wrapped. The opening directions of the clamp placement grooves 301 of the four fixing clamps 3 all face the center of the workbench plate 2. At the top of each of the four fixing clamps 3, a knob 303 is arranged. At the bottom of each knob 303, a fixed clamping plate 304 is controlled by a screw rod. Each fixed clamping plate 304 is located at the inner top of the clamp placement groove 301 of the fixing clamp 3. At the top of each fixed clamping plate 304, a clamping plate wear-resistant pad 305 is fixedly arranged. The clamping placement grooves of the four fixing clamps are opened in two directions, fitting the four corners of the liquid crystal screen. The knobs at the top can control the lifting of the fixed clamping plates, thereby realizing the fixed clamping of the liquid crystal display screen.

[0017] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for inspecting a liquid crystal screen, comprising a main housing (1), characterized in that: A workbench (2) is fixedly arranged at the top of the main box body (1), and four first sliding grooves (201) are opened on the top of the workbench (2). Two longitudinal transmission structures (5) are fixedly arranged inside the main box body (1), and two transmission box structures (4) are arranged on the top of the workbench (2). The two transmission box structures (4) achieve longitudinal relative sliding through the two longitudinal transmission structures (5) inside the main box body (1). Two fixing clamps (3) are arranged on the top of the two transmission box structures (4), and the two fixing clamps (3) of each transmission box structure (4) slide horizontally relative to each other.

2. The positioning fixture for liquid crystal screen inspection according to claim 1, characterized in that: The two longitudinal transmission structures (5) each have a first motor (501) fixedly mounted on the inner wall of the main housing (1); the two first motors (501) are synchronous motors; the output ends of the two first motors (501) are fixedly provided with a first transmission shaft (502); the two first transmission shafts (502) are fixedly provided with a first bidirectional thread (503) region; the two first bidirectional threads (503) on each first transmission shaft (502) have opposite thread directions.

3. A positioning fixture for inspecting a liquid crystal screen according to claim 2, characterized in that: A first sliding seat (504) is slidably provided on the two first bidirectional threads (503) on each of the first transmission shafts (502); the tops of the two first sliding seats (504) pass through the workbench (2) and are fixedly connected to the transmission box structure (4); a first limiting support rod (505) is fixedly provided on the top of each of the first transmission shafts (502) inside the main box body (1); and each of the first limiting support rods (505) passes through and slidably supports the two first sliding seats (504).

4. The positioning fixture for inspecting a liquid crystal screen according to claim 1, characterized in that: The two transmission box structures (4) are both supported by first sliding seats (504) on two different first transmission shafts (502); the two transmission box structures (4) are both composed of a transmission box body (401) and a motor box (402); second motors (403) are fixedly arranged inside the two motor boxes (402); the two second motors (403) are synchronous motors; second transmission shafts (404) are fixedly arranged at the output ends of the two second motors (403); and the two second transmission shafts (404) are both arranged to penetrate inside the transmission box body (401).

5. The positioning fixture for inspecting a liquid crystal screen according to claim 4, characterized in that: A second bidirectional thread (405) area is fixedly provided on each of the two second transmission shafts (404); the two second bidirectional threads (405) on each second transmission shaft (404) have opposite thread directions; a second sliding seat (409) is slidably provided on each of the second bidirectional threads (405); and a fixing fixture (3) is fixedly installed on the top of each of the second sliding seats (409) through a second sliding groove (408) of the transmission housing (401).

6. The positioning fixture for inspecting a liquid crystal screen according to claim 4, characterized in that: A partition plate (406) is fixedly provided in the middle of the interior of the two transmission housings (401), and a second position-limiting support rod (407) is provided through the interior of the two transmission housings (401) below the second transmission shaft (404), and each of the second position-limiting support rods (407) passes through two second sliding seats (409) for sliding support.

7. The positioning fixture for inspecting a liquid crystal screen according to claim 1, characterized in that: Each of the four fixing clamps (3) is provided with a clamp placement groove (301); the bottom and two inner side walls of the clamp placement groove (301) of each fixing clamp (3) are wrapped with a wear-resistant buffer pad (302); and the opening directions of the clamp placement grooves (301) of the four fixing clamps (3) are all oriented toward the center of the workbench (2).

8. The positioning fixture for inspecting a liquid crystal screen according to claim 1, characterized in that: The top of each of the four fixing clamps (3) is provided with a knob (303); the bottom of each knob (303) controls a fixing clamp (304) via a screw rod; each fixing clamp (304) is located at the inner top of a clamp placement slot (301) of the fixing clamp (3); and a clamp wear pad (305) is fixedly provided on the top of each fixing clamp (304).

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