CN217181226U

CN217181226U - Auxiliary detection device for laser positioning type liquid crystal module

Info

Publication number: CN217181226U
Application number: CN202220535263.2U
Authority: CN
Inventors: 侯旭; 陈绍军
Original assignee: Yashi Optoelectronics Group Co ltd
Current assignee: Yashi Optoelectronics Group Co ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-08-12
Anticipated expiration: 2032-03-10

Abstract

The utility model provides a laser positioning formula LCD module auxiliary detection device for supplementary quadratic element detecting instrument measures, and circular module product detects when solving and measures and puts not just, and then measures inaccurate problem. The device comprises a bottom plate, a laser ranging sensor, an X-axis clamp, a Y-axis clamp, a first ejector block and a second ejector block. The bottom plate is of a plane plate structure with a right angle, and retaining walls are arranged on two sides of the right angle; the X-axis clamp and the Y-axis clamp are respectively arranged in two mutually perpendicular directions of the bottom plate, the first ejector block is fixed at the front end of a telescopic rod of the X-axis clamp, and the second ejector block is fixed at the front end of a telescopic rod of the Y-axis clamp; the liquid crystal module to be detected is placed at the right-angle corner of the bottom plate and is propped against the retaining walls at the two sides; the first top block and the second top block are used for supporting the edge of the cover plate of the detected liquid crystal module. The laser ranging sensors comprise two sensors which are respectively fixed at two ends of the measured liquid crystal module placing position on the bottom plate.

Description

Auxiliary detection device for laser positioning type liquid crystal module

Technical Field

The utility model relates to a display technical field, in particular to supplementary detection device of laser positioning formula LCD module.

Background

At present, after a general liquid crystal module is assembled, a detection process is required to be carried out, the relative position between a cover plate and a backlight source needs to be accurately pasted, and for some circular modules, a detection method comprises the following steps: 1) the method is characterized in that a caliper is used for manual detection, but the quadrant point of a round cover plate is not easy to find, measurement is inconvenient, and some distance sizes cannot be measured by the caliper; 2) and if use quadratic element equipment direct detection, require the product to violently put on the measuring table of keeping flat vertically and just can measure, because the circle module is easily rotatory, can't put in order, detect very inaccurately. If the clamp is directly used, the straight edge of the backlight source is clamped by hard contact, and then the straight edge is regular, so that the OCA glue between the backlight source and the cover plate is easy to deform, further the product deforms, and the measurement is still inaccurate. The current mode can only adopt one of the two modes to carry out inaccurate rough measurement.

Disclosure of Invention

In order to solve the technical problem that the background art provided, the utility model provides a detection device is assisted to laser positioning formula LCD module for supplementary quadratic element detecting instrument measures, and circular module product detection time measuring puts just not when solving the measurement, and then measures inaccurate problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a supplementary detection device of laser positioning formula LCD module, includes bottom plate, laser rangefinder sensor, X axle anchor clamps, Y axle anchor clamps, first kicking block and second kicking block.

The bottom plate is of a plane plate structure with a right angle, and retaining walls are arranged on two sides of the right angle; the X-axis clamp and the Y-axis clamp are respectively arranged in two mutually perpendicular directions of the bottom plate, the first ejector block is fixed at the front end of a telescopic rod of the X-axis clamp, and the second ejector block is fixed at the front end of a telescopic rod of the Y-axis clamp; the liquid crystal module to be detected is placed at the right-angle corner of the bottom plate and is propped against the retaining walls at the two sides; when the telescopic rods of the X-axis clamp and the Y-axis clamp extend forwards, the first ejector block and the second ejector block prop against the edge of the cover plate of the detected liquid crystal module.

The laser ranging sensors comprise two sensors which are respectively fixed at two ends of a placement position of the tested liquid crystal module on the bottom plate, and the ranging directions are respectively aligned with two small straight edges of the backlight source of the tested liquid crystal module.

Furthermore, the X-axis clamp and the Y-axis clamp have the same structure and respectively comprise a clamp wrench and a telescopic rod, the clamp wrench is fixed on the bottom plate, and the front end of the clamp wrench is elastically connected with the telescopic rod.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a design of right angle bottom plate and X axle anchor clamps and Y axle anchor clamps can be with being surveyed the stable fixing of liquid crystal module in bottom plate corner, guarantee the position off tracking not, and because set up the laser ranging mode and fix a position, two laser ranging sensor position positions on the bottom plate, theoretically be equal with the little straight flange distance in liquid crystal module's backlight both sides, can effectively increase the positioning accuracy degree, regular module product is fixed with anchor clamps jointly, supplementary quadratic element check out test set detects, obtain accurate numerical value. Compared with the prior art, the method and the device can achieve high detection precision, obtain accurate detection values, facilitate monitoring of product assembly quality and facilitate management and production.

Drawings

Fig. 1 is a three-dimensional structure diagram of the auxiliary detection device for a laser positioning type liquid crystal module of the present invention;

fig. 2 is a front view (initial state) of the auxiliary detection device for a laser positioning type liquid crystal module according to the present invention;

fig. 3 is a front view (pressed state) of the auxiliary detection device for a laser positioning type liquid crystal module according to the present invention;

in the figure: the method comprises the steps of 1, a bottom plate, 2, an X-axis clamp, 3, a Y-axis clamp, 4, a first top block, 5, a second top block, 6, a tested liquid crystal module product, 7, a laser ranging sensor, 8, a reading displayed by the laser ranging sensor, 9, a telescopic rod, 10, a cover plate, 11, a backlight source, 12, a retaining wall, 13, a clamp wrench, 14, small straight edges, 15 and bolts, wherein the two sides of the backlight source are provided with the small straight edges, and the bolts are arranged on the two sides of the liquid crystal module.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1-3, an auxiliary detection device for a laser positioning type liquid crystal module comprises a bottom plate 1, a laser ranging sensor 7, an X-axis clamp 2, a Y-axis clamp 3, a first ejector block 4 and a second ejector block 5.

The bottom plate 1 is a plane plate structure with a right angle, and retaining walls 12 are arranged on two sides of the right angle; the X-axis clamp 2 and the Y-axis clamp 3 are respectively arranged in two mutually perpendicular directions of the bottom plate 1, the first ejector block 4 is fixed at the front end of a telescopic rod 9 of the X-axis clamp 2, and the second ejector block 5 is fixed at the front end of the telescopic rod 9 of the Y-axis clamp 4; the tested liquid crystal module product 6 is placed at the right-angle corner of the bottom plate 1 and is propped against the retaining walls 12 at the two sides; when the telescopic rods 9 of the X-axis clamp 2 and the Y-axis clamp 3 extend forwards, the first ejector block 4 and the second ejector block 5 are abutted against the edge of the cover plate 10 of the detected liquid crystal module product 6.

The X-axis clamp 2 and the Y-axis clamp 3 are identical in structure and respectively comprise a clamp wrench 13 and an expansion link 9, the clamp wrench 13 is fixed on the bottom plate 1, the front end of the clamp wrench is elastically connected with the expansion link 9, and the first ejector block 4/the second ejector block 5 is fixed at the front end of the expansion link 9.

The bottom plate 1 is provided with the depressions at the mounting positions of the X-axis clamp 2 and the Y-axis clamp 3, so that the X-axis clamp 2 and the Y-axis clamp 3 can be conveniently mounted, and the mounting heights of the first ejector block 4 and the second ejector block 5 at the front ends of the X-axis clamp and the Y-axis clamp are adapted.

The laser ranging sensors 7 comprise two laser ranging sensors which are respectively fixed at two ends of a placement position of the tested liquid crystal module product 6 on the bottom plate 1, and the ranging directions are respectively aligned with two small straight edges 14 of the tested liquid crystal module backlight source 11. The positions of the two laser ranging sensors 7 on the bottom plate 1 are theoretically the same as the distances between the small straight edges 14 on the two sides of the backlight 11 of the liquid crystal module to be measured, the two laser ranging sensors are aligned with the small straight edges 14 of the backlight, and the current distance value reading 8 can be displayed on the sensors.

The utility model discloses a use method does: will the utility model discloses a device is kept flat in advance and is gone into quadratic element check out test set (for example quadratic element image measuring apparatu) and lean on the wall to put positive, afterwards the utility model discloses by initial position to compressing tightly the action process as shown in fig. 2-3, establish initial state and be (a), the state of compressing tightly is (b), specifically as follows:

1. processes (a) to (b): initial state (a), the clamp spanner 13 of X axle anchor clamps 2 and Y axle anchor clamps 3 outwards opens, lie liquid crystal module product 6 in the corner of bottom plate 1 and support on barricade 12, open laser ranging sensor 7, let it aim at the little straight flange 14 of backlight, can show current distance value reading 8 on the laser ranging sensor 7, when two laser ranging sensor 7 show the reading and equal, then prove that liquid crystal module product 6 is ajusted (allow two reading at this moment to have difference within 0.05mm, all regard as ajusting), pull clamp spanner 13 and let telescopic link 9 stretch out and draw back, it compresses tightly to prop up the apron 10 edge of liquid crystal module product 6 through first kicking block 4, second kicking block 5. As shown in fig. 3, the state (b) is reached. Now the detection is performed with a two-dimensional device.

2. Process (b) to (a): after the detection is finished, the clamp wrenches 13 of the X-axis clamp 2 and the Y-axis clamp 3 are pulled to retract the telescopic rod 9, the liquid crystal module product 6 is taken out, and the whole body returns to the initial state (a). Entering the next cycle and repeating the steps. And after the test of the whole batch of products is finished, closing the laser ranging sensor 2.

The embodiment is as follows: a 1.77 very little module product of a section uses the utility model discloses supplementary detection, the location is accurate, detects the accuracy, the comparative example: a section 1.77 very little module product, traditional artifical slide caliper rule detection mode, some sizes can not the lower ruler, have not detected, and detect with quadratic element equipment, can't put right, and the test result is inaccurate. The utility model discloses detect more comprehensively than traditional artifical slide caliper rule, detect more accurately than directly using quadratic element equipment, the test result is more stable, has reduced the false retrieval rate, guidance production that can be better.

The above embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation and specific operation processes are given, but the protection scope of the present invention is not limited to the above embodiments. The methods used in the above examples are conventional methods unless otherwise specified.

Claims

1. A laser positioning type liquid crystal module auxiliary detection device is characterized by comprising a bottom plate, a laser ranging sensor, an X-axis clamp, a Y-axis clamp, a first ejector block and a second ejector block;

the bottom plate is of a plane plate structure with a right angle, and retaining walls are arranged on two sides of the right angle; the X-axis clamp and the Y-axis clamp are respectively arranged in two mutually perpendicular directions of the bottom plate, the first ejector block is fixed at the front end of a telescopic rod of the X-axis clamp, and the second ejector block is fixed at the front end of a telescopic rod of the Y-axis clamp; the liquid crystal module to be detected is placed at the right-angle corner of the bottom plate and is propped against the retaining walls at the two sides; when the telescopic rods of the X-axis clamp and the Y-axis clamp extend forwards, the first ejector block and the second ejector block prop against the edge of a cover plate of the detected liquid crystal module;

2. The auxiliary detection device of claim 1, wherein the X-axis clamp and the Y-axis clamp have the same structure and each comprise a clamp wrench and a telescopic rod, the clamp wrenches are fixed on the bottom plate, and the front ends of the clamp wrenches are elastically connected with the telescopic rods.