CN217739657U

CN217739657U - Liquid crystal display panel test fixture

Info

Publication number: CN217739657U
Application number: CN202221301013.9U
Authority: CN
Inventors: 廉涛
Original assignee: Hefei Jinglan Semiconductor Co ltd
Current assignee: Hefei Jinglan Semiconductor Co ltd
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-11-04
Anticipated expiration: 2032-05-27

Abstract

The utility model discloses a liquid crystal display panel test fixture, including test microscope carrier and the test pressure head of setting on the test microscope carrier, product profile groove and inductor have been seted up on the test microscope carrier, the test pressure head includes the base of fixed mounting on the test microscope carrier, rotatable being provided with on the base can the lid close the upper clamp on it, be provided with the supporting shoe on the base, the FPC profile groove has been seted up on the supporting shoe, the absorption hole has been seted up in the FPC profile groove, the negative pressure joint intercommunication on absorption hole and the base, be provided with on the upper clamp and be used for when the upper clamp is in the lid with FPC electric connection's needle mould. The utility model discloses a set up the profile modeling groove that can holding FPC on the base of test pressure head for FPC can accurately enter into the profile modeling groove in artifical installation, has effectively avoided appearing the condition that the installation is not in place, has avoided because the installation is not in place and the condition that corresponding equipment damaged appears.

Description

Liquid crystal display panel test fixture

Technical Field

The utility model relates to a liquid crystal display panel test equipment technical field specifically is a liquid crystal display panel test fixture.

Background

Currently, in the LCM and TP manufacturing process, each product needs to be tested. During testing, an interface of a product, namely an FPC (flexible printed circuit) golden finger, needs to be switched to a product driving circuit board through a connector, so that functional testing of the product is realized. Because of many pins and small space of product interface signals, one-to-one corresponding connectors are used for switching in the industry at present.

Chinese patent publication No.: CN213211656U discloses a crimping jig and test equipment, which comprises: a base plate; the first crimping unit is used for carrying out crimping test on the FPC on one side of the product and is fixed on the bottom plate; the carrier plate is arranged on the bottom plate and is positioned on one side of the first pressure welding unit, and the carrier plate can move towards or away from the first pressure welding unit relative to the bottom plate; and the second crimping unit is used for carrying out crimping test on the FPC on the other side of the product, is arranged on the bottom plate, and can move towards the direction close to or away from the carrier plate relative to the carrier plate. Above-mentioned crimping tool installs on a test equipment, can once only carry out the crimping test to two FPC products, need not remove the product between two test equipment, reduces the risk of product damage, uses a test equipment reduce cost and occupation space is little. However, the above device has the following obvious defects in the use process: in the test process, need will connect FPC crimping to the mounting groove through manual, appear easily that the installation is not in place, lead to closing the in-process at the clamp plate lid to and the condition that FPC, needle membrane damage appear easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid crystal display panel test fixture to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the liquid crystal display panel test fixture comprises a test platform deck and a test pressure head arranged on the test platform deck, wherein a product contour groove and an inductor are formed in the test platform deck, the test pressure head comprises a base fixedly installed on the test platform deck, an upper clamp capable of being covered on the base is rotatably arranged on the base, a supporting block is arranged on the base, an FPC contour groove is formed in the supporting block, an adsorption hole is formed in the FPC contour groove and is communicated with a negative pressure connector on the base, and a needle mold which is electrically connected with the FPC when the upper clamp is covered is arranged on the upper clamp.

Preferably, the upper clamp is connected with the base in a rotatable manner through a rotating shaft on one side, a clamping block is arranged on one side, opposite to the rotating shaft, of the upper clamp, and a clamping nozzle matched with the clamping block is arranged on the base in a rotatable manner.

Preferably, the position, corresponding to the base, of the test carrying platform is provided with an opening clamping cylinder, and the telescopic end of the opening clamping cylinder is connected with a driving block for driving the clamping nozzle to rotate to realize unlocking of the clamping block.

Preferably, the base is provided with a guide contact pin on the back surface.

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

the utility model discloses a set up the profile modeling groove that can holding FPC on the base of test pressure head, make FPC in artifical installation, can accurately enter into the profile modeling groove, the condition that the installation is not in place has effectively been avoided appearing, the condition that corresponding equipment damaged has been avoided appearing because the installation is not in place, it is more important, through set up the adsorption component who comprises adsorption hole and negative pressure joint in the profile modeling groove, make FPC in the installation, realize the automatic alignment installation through being adsorbed, and when the installation is not in place appearing, the suggestion of reporting to the police can appear in adsorption component's pressure parameter, further guarantee the accuracy of FPC installation.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic diagram of the back structure of the test carrier of the present invention;

FIG. 3 is an enlarged view of the structure of area A in FIG. 1;

fig. 4 is an enlarged schematic view of the structure of region B in fig. 2.

In the figure: the test device comprises a test carrying platform 1, a product profiling groove 2, a sensor 3, a base 4, an upper clamp 5, a clamping mouth 6, a clamping block 7, a supporting block 8, an FPC profiling groove 9, a pin mold 10, an open clamp cylinder 11, a driving block 12, a negative pressure joint 13 and a guide contact pin 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

a liquid crystal display panel test fixture comprises a test carrier 1 and a test pressure head arranged on the test carrier 1, wherein a product profile groove 2 and an inductor 3 are formed in the test carrier 1, the product profile groove 2 corresponds to the appearance of a tested product, so that the tested product can be effectively limited and fixed, and the tested product is electrically connected with the inductor 3 after being installed; the test pressure head comprises a base 4 fixedly installed on the test platform deck 1, a guide contact pin 14 is arranged on the back of the base 4, an upper clamp 5 capable of being covered on the base 4 is rotatably arranged on the base 4, the upper clamp 5 is rotatably connected with the base 4 through a rotating shaft on one side, a torsion spring is arranged on the rotating shaft, a clamping block 7 is arranged on one side, opposite to the rotating shaft, of the upper clamp 5, a clamping mouth 6 matched with the clamping block 7 is rotatably arranged on the base 4, the upper clamp 5 rotates by taking the rotating shaft as a circle center under the action of external force, and finally covers the base 4, and the clamping mouth 6 clamps the clamping block 7 through rotation at the moment to lock the upper clamp 5;

the test platform deck 1 is provided with an opening clamping cylinder 11 at a position corresponding to the base 4, the telescopic end of the opening clamping cylinder 11 is connected with a driving block 12 for driving the clamping mouth 6 to rotate to unlock the clamping block 7, when the upper clamp 5 needs to be opened, the telescopic end of the opening clamping cylinder 11 extends out and drives the driving block 12 to move along a direction close to the base 4, and due to the fact that the driving block 12 is provided with the inclined surface structure, when the inclined surface structure contacts the clamping mouth 6, the clamping mouth 6 is driven to rotate, so that the clamping mouth 6 unlocks the clamping block 7, under the action of a torsion spring, the upper clamp 5 rotates by taking the rotating shaft as a circle center, and the automatic opening of the upper clamp 5 is achieved;

the base 4 is provided with the supporting block 8, the FPC copying groove 9 is formed in the supporting block 8, and the FPC can accurately enter the FPC copying groove 9 in the manual installation process by arranging the FPC copying groove 9, so that the condition of improper installation is effectively avoided, and the condition that corresponding equipment is damaged due to the improper installation is avoided; an adsorption hole is formed in the FPC contour groove 9 and is communicated with a negative pressure connector 13 on the base 4, the negative pressure connector 13 is communicated with a negative pressure device through a pipeline, and an adsorption assembly consisting of the adsorption hole and the negative pressure connector 13 is arranged in the contour groove, so that the FPC is adsorbed to realize automatic alignment installation in the installation process, and when the FPC is not installed in place, an alarm prompt can be presented to the pressure parameter of the adsorption assembly, and the installation accuracy of the FPC is further ensured; the upper clamp 5 is provided with a needle die 10 which is used for being electrically connected with the FPC when the upper clamp 5 is covered, and when the upper clamp 5 covers the base 4, the needle die 10 is electrically connected with the FPC, so that the test fixture is communicated with a tested product, and a test signal is input into the tested product.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a liquid crystal display panel test fixture, includes test microscope carrier (1) and sets up the test pressure head on test microscope carrier (1), product profile modeling groove (2) and inductor (3) have been seted up on test microscope carrier (1), its characterized in that: the testing pressure head comprises a base (4) fixedly installed on a testing carrier (1), an upper clamp (5) capable of being covered on the base (4) is rotatably arranged on the base (4), a supporting block (8) is arranged on the base (4), an FPC (flexible printed circuit) profiling groove (9) is formed in the supporting block (8), an adsorption hole is formed in the FPC profiling groove (9), the adsorption hole is communicated with a negative pressure connector (13) on the base (4), and a needle die (10) which is electrically connected with the FPC when the upper clamp (5) is covered is arranged on the upper clamp (5).

2. The liquid crystal panel test fixture of claim 1, wherein: the upper clamp (5) is connected with the base (4) in a rotatable mode through a rotating shaft on one side, a clamping block (7) is arranged on one side, opposite to the rotating shaft, of the upper clamp (5), and a clamping nozzle (6) matched with the clamping block (7) is arranged on the base (4) in a rotatable mode.

3. The liquid crystal panel test fixture of claim 2, wherein: an opening and clamping cylinder (11) is arranged on the test carrying platform (1) at a position corresponding to the base (4), and the telescopic end of the opening and clamping cylinder (11) is connected with a driving block (12) used for driving the clamping nozzle (6) to rotate to realize unlocking of the clamping block (7).

4. The testing jig for the liquid crystal panel according to claim 1, wherein: the back of the base (4) is provided with a guide contact pin (14).