CN220251995U - False piezoelectric measuring clamp for touch screen - Google Patents

Abstract

The utility model discloses a touch screen false piezoelectric testing fixture, which comprises a base and support columns arranged at four corners of the base, wherein the support columns are provided with sliding mechanisms capable of moving in the directions of an X axis and a Y axis, the sliding mechanisms are in sliding fit with a testing component, the testing component comprises a telescopic cylinder which is in sliding connection with the sliding mechanisms, the other end of the telescopic cylinder is connected with a first pressure head for testing single-side wiring, and the left end and the right end of the bottom surface of the first pressure head are respectively provided with a second pressure head and a third pressure head for testing double-side wiring. The fixture adopts three pressure heads to contact with the metal wire on the touch screen for testing, the single-side wire is fixed and the metal wire is contacted for testing, the double-side wire is designed in two parts, a switch which enables the double-side wire to contact with the metal wire one by one is arranged on the fixture, one side of the micro-break is defective due to the defect of the metal wire, the conductivity is poor, the transmission of charges can be affected, the difference of bridge point capacitance values is increased, and the fixture can effectively clamp the defect.

Description

False piezoelectric measuring clamp for touch screen

Technical Field

The utility model relates to the technical field of solid-phase extraction, in particular to a false piezoelectric measuring clamp for a touch screen.

Background

With the development of man-machine exchange technology, touch screens are widely applied to various fields as the most direct mode of man-machine exchange, and the touch screens are more diversified in style, so that it is particularly important how to realize quick and effective test display of functions of different types of touch screens.

At present, a touch screen product has poor functionality of a single-side micro-end of a metal wiring, a double-side wiring scheme is adopted on the long side of the touch screen, and micro-broken charges can be transmitted to an ITO bridge point from the other side to form a capacitance value, so that electric measurement software cannot effectively identify the poor performance, poor leakage is caused, and in the using process of a customer, the metal wiring of a micro-broken area is slowly blown to form an open circuit due to repeated electrifying, so that poor touch of the area is caused, and customer complaints are caused.

Like chinese patent (CN 214585862U) discloses a FPC circuit board test fixture, including base, fixed plate, pillar, probe disc, bracing piece, first spout, movable frame, telescopic cylinder, lead screw, circuit board standing groove, movable groove, slider, movable block, second spout, fixing bolt, gag lever post, spring, probe and rubber pad, the inside of base is provided with the circuit board standing groove, and the internally mounted of circuit board standing groove has the fixed plate, the rubber pad is installed in the surface of fixed plate, the spring is installed in the left side of fixed plate, and the internally mounted of spring has the gag lever post, the pillar is installed to the top of base, and the bracing piece is installed to the top of pillar. This a test fixture for FPC circuit board slides on the bracing piece through first spout to be convenient for adjust the position of probe dish according to FPC circuit board, and then realize carrying out accurate location to the probe dish, avoid FPC circuit board and probe dish dislocation, influence test result.

However, when the present inventors embodied this device, the following drawbacks were found to exist: the FPC circuit board is fixed through fixed plate and spring, probably crushes FPC circuit board to unsuitable fixed.

Disclosure of Invention

Based on the above technical problem, it is necessary to provide a touch screen false piezoelectric testing fixture, a first pressure head for testing single-side wiring is arranged on a telescopic cylinder, a second pressure head and a third pressure head for testing double-side wiring are respectively arranged at left and right ends of the bottom surface of the first pressure head, the fixture adopts three pressure heads to contact with metal wiring on a touch screen for testing, the single-side wiring is fixed to contact with the metal wiring for testing, the double-side wiring is designed in two parts, a switch for enabling the double-side wiring to contact with the metal wiring one by one is arranged on the fixture, the fixture enables the double-side wiring to be tested in two times, and one side of a micro break is defective due to the defect of the metal wiring, poor conductivity and can affect charge transmission, so that the difference of bridge point capacitance values is increased, and the fixture can effectively clamp out the defect.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a false piezoelectric measuring clamp for a touch screen.

The touch screen false piezoelectric measurement fixture specifically comprises:

the base be provided with the support column on four corners of base, be provided with the slide mechanism that can remove in X axle and Y axle direction on the support column, slide mechanism sliding fit has test assembly, test assembly including with slide mechanism sliding connection's flexible cylinder, the one end of flexible cylinder is connected with the slider, the other end of flexible cylinder is connected with the first pressure head that is used for testing unilateral line, both ends are provided with the second pressure head and the third pressure head that are used for testing bilateral line respectively about the bottom surface of first pressure head.

As a preferred implementation mode of the touch screen false piezoelectric testing fixture provided by the utility model, the sliding mechanism comprises a first supporting rod and a second supporting rod which are respectively arranged at the top ends of the supporting columns on the left side and the right side, a first Y-axis sliding groove and a second Y-axis sliding groove are respectively arranged on opposite surfaces of the first supporting rod and the second supporting rod, X-axis guide rails are slidably matched with the first Y-axis sliding groove and the second Y-axis sliding groove, X-axis guide rails are provided with X-axis sliding grooves, and the X-axis sliding grooves are slidably matched with the testing assembly.

As an optimal implementation mode of the touch screen false voltage measuring clamp provided by the utility model, the telescopic cylinder is connected with the sliding block in the X-axis sliding groove to form a sliding structure, the size of the sliding block is larger than that of the X-axis sliding groove, and the sliding block is in contact with the X-axis guide rail.

As a preferred implementation mode of the touch screen false voltage measuring clamp provided by the utility model, the second pressure head and the third pressure head are movably and detachably arranged.

As a preferred implementation mode of the touch screen false voltage measuring clamp provided by the utility model, the top surface of the base is provided with a limiting groove for limiting the touch screen.

As a preferred implementation mode of the touch screen false voltage measuring clamp provided by the utility model, a vacuum groove is hollowed in the base, a plurality of through holes communicated with the vacuum groove are formed in the top surface of the limiting groove, and an air suction hole connected with the vacuum groove is formed in the side surface of the base.

As a preferred implementation mode of the touch screen false voltage measuring clamp provided by the utility model, a plurality of through holes are uniformly distributed on the surface of the limiting groove in an array mode.

As a preferable implementation mode of the touch screen false voltage measuring clamp provided by the utility model, the radius of the through hole is 0.1-0.2 mm.

As an optimal implementation mode of the touch screen false voltage measuring clamp provided by the utility model, the orifice of the air suction hole is provided with a round angle, and the radius of the round angle is 0.2mm.

As an optimal implementation mode of the touch screen false voltage measuring clamp provided by the utility model, the base is made of a skid material integrally cut through CNC.

Compared with the prior art, the utility model has the following beneficial effects:

according to the touch screen false piezoelectric testing clamp, the first pressure head for testing the single-side wire is arranged on the telescopic cylinder, the second pressure head and the third pressure head for testing the double-side wire are respectively arranged at the left end and the right end of the bottom surface of the first pressure head, the three pressure heads are used for testing contact of the single-side wire and the metal wire on the touch screen, the single-side wire is fixed and is tested in contact with the metal wire, the double-side wire is designed in two parts, a switch enabling the double-side wire to be in contact with the metal wire one by one is arranged on the clamp, the double-side wire is tested in two times, and the defect of the metal wire is caused on one side of micro-break, conductivity is poor, electric charge transmission is affected, so that bridge point capacitance value difference is increased, and the clamp can effectively clamp the defect.

Drawings

In order to more clearly illustrate the solution of the present utility model, a brief description will be given below of the drawings required for the description of the embodiments, it being obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a touch screen false voltage measurement fixture provided by the utility model;

FIG. 2 is another angular view of FIG. 1;

FIG. 3 is a schematic diagram of a test assembly according to the present utility model;

FIG. 4 is a top view of FIG. 1;

fig. 5 is a cross-sectional view of fig. 4.

The labels in the figures are illustrated below:

a base 1; a support column 2; a telescopic cylinder 3; a slider 4; a first ram 5; a second ram 6; a third ram 7; a first support bar 8; a second support bar 9; a first Y-axis chute 10; a second Y-axis chute 11; an X-axis guide rail 12; an X-axis chute 13; a limit groove 14; a vacuum tank 15; a through hole 16; and an air suction hole 17.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

As background technology, the conventional touch screen product has a poor functionality of a single-side micro-end of a metal wiring, the long side of the touch screen adopts a double-side wiring scheme, and micro-broken charges can be transmitted to an ITO bridge point from the other side to form a capacitance value, so that electrical measurement software cannot effectively identify the poor performance, and poor leakage is caused.

In order to solve the technical problem, the utility model provides a false piezoelectric measuring clamp for a touch screen.

Specifically, referring to fig. 1 to 3, the touch screen pseudo-piezoelectric measurement fixture specifically includes:

the base 1, be provided with support column 2 on four corners of base 1, be provided with the slide mechanism that can remove in X axle and Y axle direction on the support column 2, slide mechanism sliding fit has test assembly, test assembly is including the flexible cylinder 3 with slide mechanism sliding connection, the one end of flexible cylinder 3 is connected with slider 4, the other end of flexible cylinder 3 is connected with the first pressure head 5 that is used for testing unilateral line of walking, both ends are provided with the second pressure head 6 and the third pressure head 7 that are used for testing bilateral line of walking respectively about the bottom surface of first pressure head 5.

According to the touch screen false piezoelectric testing fixture, the first pressure head 5 for testing the single-side wiring is arranged on the telescopic cylinder 3, the second pressure head 6 and the third pressure head 7 for testing the double-side wiring are respectively arranged at the left end and the right end of the bottom surface of the first pressure head 5, the three pressure heads are used for testing the contact of the single-side wiring and the metal wiring on the touch screen, the single-side wiring is fixed and is tested in contact with the metal wiring, the double-side wiring is designed in two parts, a switch which enables the double-side wiring to be in contact with the metal wiring one by one is arranged on the fixture, the double-side wiring is tested in two times, and the micro-broken side is poor in conductivity due to the defect of the metal wiring, the transmission of charges can be influenced, so that the difference of bridge point capacitance value is increased, and the fixture can effectively clamp out the defect.

In order to make the person skilled in the art better understand the solution of the present utility model, the technical solution of the embodiment of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that, under the condition of no conflict, the embodiments of the present utility model and the features and technical solutions in the embodiments may be combined with each other.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Example 1

Referring to fig. 1-3, a touch screen false piezoelectric testing fixture comprises a base 1, support columns 2 are arranged on four corners of the base 1, sliding mechanisms capable of moving in the directions of an X axis and a Y axis are arranged on the support columns 2, the sliding mechanisms are in sliding fit with testing components, the testing components comprise a telescopic cylinder 3 which is in sliding connection with the sliding mechanisms, one end of the telescopic cylinder 3 is connected with a sliding block 4, the other end of the telescopic cylinder 3 is connected with a first pressure head 5 for testing unilateral wiring, and a second pressure head 6 and a third pressure head 7 for testing the unilateral wiring are respectively arranged at the left end and the right end of the bottom surface of the first pressure head 5.

Through the structural design, the sliding mechanism can be used for testing the touch screen below the testing assembly at will in the X axis and the Y axis, and a specific position of the touch screen which is required to swing below is not considered; the sliding block 4 is used for driving the test assembly to slide in the range of the X axis, and meanwhile, the test assembly is prevented from falling, and the limit function is achieved; the telescopic cylinder 3 is used for randomly adjusting the specific distance of the test assembly in the Z-axis direction, and can be suitable for touch screens with any thickness; through be equipped with the first pressure head 5 that is used for testing unilateral line of walking at flexible cylinder 3, both ends are provided with the second pressure head 6 and the third pressure head 7 that are used for testing bilateral line of walking respectively about the bottom surface of first pressure head 5, the anchor clamps adopt three pressure heads to walk the line contact test with the metal on the touch-sensitive screen, unilateral line is fixed and the line contact test is walked to the metal, bilateral line divide two parts to design, make the bilateral line one by one and the switch that the line contacted is walked to the metal on the anchor clamps, the anchor clamps let bilateral line divide two tests, little broken one side is owing to the metal is walked the line defect, conductivity is not good, can influence the transmission of electric charge, lead to the bridge point capacitance value difference grow, anchor clamps just can effectively block out this kind of bad.

Specifically, the sliding mechanism comprises a first supporting rod 8 and a second supporting rod 9 which are respectively arranged at the top ends of the supporting columns 2 on the left side and the right side, a first Y-axis sliding chute 10 and a second Y-axis sliding chute 11 are respectively arranged on opposite surfaces of the first supporting rod 8 and the second supporting rod 9, the first Y-axis sliding chute 10 and the second Y-axis sliding chute 11 are respectively in sliding fit with an X-axis guide rail 12, the X-axis guide rail 12 is provided with an X-axis sliding chute 13, and the X-axis sliding chute 13 is in sliding fit with a testing component.

Through the above structural design, the top ends of the two support columns 2 are respectively provided with the first support rod 8 and the second support rod 9 for providing the Y-axis sliding motion for the test assembly, the first Y-axis sliding chute 10 and the second Y-axis sliding chute 11 are used for providing the Y-axis sliding motion for the X-axis guide rail 12, and the X-axis guide rail 12 and the X-axis sliding chute 13 are used for providing the X-axis sliding motion for the test assembly.

Specifically, the telescopic cylinder 3 forms a sliding structure by being connected with the slider 4 in the X-axis sliding groove 13, the size of the slider 4 is larger than that of the X-axis sliding groove 13, and the slider 4 and the X-axis guide rail 12 are in contact with each other.

Through above-mentioned structural design, flexible cylinder 3 is used for with this test module at the arbitrary specific distance of adjustment of Z axle direction, applicable touch-sensitive screen of arbitrary thickness, and it is in X axle spout 13 through slider 4 sliding connection, but the displacement of manual control slider 4 removal flexible cylinder 3.

Example 2

Further optimizing the touch screen false voltage measurement fixture provided in embodiment 1, specifically, as shown in fig. 3, the second pressure head 6 and the third pressure head 7 are both movably and detachably mounted.

Through the above-mentioned structural design, through being equipped with the first pressure head 5 that is used for testing unilateral line of walking at telescopic cylinder 3, both ends are provided with the second pressure head 6 and the third pressure head 7 that are used for testing bilateral line of walking respectively about the bottom surface of first pressure head 5, the anchor clamps adopt three pressure heads to walk the line contact test with the metal on the touch-sensitive screen, unilateral line is fixed and the line contact test is walked with the metal to unilateral, bilateral line divide two parts to design, make the switch that makes bilateral line one-to-one and the line contact is walked to the metal on the anchor clamps, the anchor clamps let bilateral line divide two tests, the one that slightly breaks is owing to the metal is walked the line defect, the conductivity is not good, can influence the transmission of electric charge, lead to the bridge point capacitance value difference grow, anchor clamps just can effectively block out this kind of bad.

Example 3

Further optimizing the touch screen pseudo-voltage measuring clamp provided in embodiment 1 or 2, as shown in fig. 1-5, the top surface of the base 1 is provided with a limiting groove 14 for limiting the touch screen.

Through the above structural design, the limiting groove 14 is used for placing the touch screen, and provides a placing space for the touch screen.

Specifically, the inside fretwork of base 1 has vacuum groove 15, and the top surface of spacing groove 14 is provided with a plurality of through-hole 16 that communicate vacuum groove 15, and the side of base 1 is provided with the bleed hole 17 that is connected with vacuum groove 15.

Through the above structural design, the vacuum groove 15 is arranged in the base 1, the through hole 16 is formed in the top surface of the limit groove 14 and is communicated with the vacuum groove 15, the air suction hole 17 is used for being matched with a vacuum extractor, when the touch screen needs to be fixed, only the light guide of the vacuum extractor needs to be inserted into the air suction hole 17, the internal air is sucked out, the touch screen is tightly attached in the limit groove 14 due to suction, and the touch screen can be fixed in the limit groove 14.

Specifically, the plurality of through holes 16 are uniformly arranged on the surface of the limiting groove 14 in an array manner.

Specifically, the radius of the through hole 16 is 0.1 to 0.2mm.

Specifically, the orifice of the suction hole 17 is provided with a rounded corner, the radius of which is 0.2mm.

Through above-mentioned structural design, the chamfer helps preventing to collide with, prevents this bleed hole 17 harm.

Specifically, the base 1 is made of a skid material integrally cut by CNC.

Through the structural design, the skid material has the effect of preventing static electricity, and is helpful for preventing the static electricity from interfering the touch screen.

The using process of the touch screen false piezoelectric measuring clamp provided by the utility model is as follows:

when the touch screen is used, the touch screen is randomly placed on the limit groove 14, the light guide of the vacuum extractor is inserted into the air extraction hole 17, internal air is extracted, the touch screen is tightly attached in the limit groove 14 due to suction force, the touch screen can be fixed in the limit groove 14, the directions of the test assembly on the X axis and the Y axis are adjusted, the test assembly is aligned to the unilateral wiring and the bilateral wiring of the touch screen, and then the touch screen is pressed down through the telescopic cylinder 3 for testing.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It is apparent that the above-described embodiments are only some embodiments of the present utility model, but not all embodiments, and the preferred embodiments of the present utility model are shown in the drawings, which do not limit the scope of the patent claims. This utility model may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the utility model are directly or indirectly applied to other related technical fields, and are also within the scope of the utility model.

Claims (10)

1. The utility model provides a false piezoelectricity survey anchor clamps of touch-sensitive screen, its characterized in that includes base (1) be provided with support column (2) on four corners of base (1), be provided with the slide mechanism that can remove in X axle and Y axle direction on support column (2), slide mechanism sliding fit has test assembly, test assembly including with slide mechanism sliding connection's flexible cylinder (3), the one end of flexible cylinder (3) is connected with slider (4), the other end of flexible cylinder (3) is connected with first pressure head (5) that are used for testing unilateral wiring, both ends are provided with second pressure head (6) and third pressure head (7) that are used for testing bilateral wiring about the bottom surface of first pressure head (5) respectively.

2. The touch screen false piezoelectric measuring clamp according to claim 1, wherein the sliding mechanism comprises a first supporting rod (8) and a second supporting rod (9) which are respectively arranged at the top ends of the supporting columns (2) on the left side and the right side, a first Y-axis sliding groove (10) and a second Y-axis sliding groove (11) are respectively arranged on opposite surfaces of the first supporting rod (8) and the second supporting rod (9), the first Y-axis sliding groove (10) and the second Y-axis sliding groove (11) are both in sliding fit with an X-axis guide rail (12), the X-axis guide rail (12) is provided with an X-axis sliding groove (13), and the X-axis sliding groove (13) is in sliding fit with the testing component.

3. Touch screen false voltage measuring clamp according to claim 2, characterized in that the telescopic cylinder (3) is connected with the sliding block (4) to form a sliding structure in the X-axis sliding groove (13), the size of the sliding block (4) is larger than that of the X-axis sliding groove (13), and the sliding block (4) is in contact with the X-axis guide rail (12).

4. The touch screen false voltage measurement clamp according to claim 1, wherein the second pressure head (6) and the third pressure head (7) are movably and detachably mounted.

5. The touch screen false voltage measuring clamp according to claim 1, wherein a limiting groove (14) for limiting the touch screen is formed in the top surface of the base (1).

6. The touch screen false voltage measuring clamp according to claim 5, wherein a vacuum groove (15) is hollowed out in the base (1), a plurality of through holes (16) communicated with the vacuum groove (15) are formed in the top surface of the limiting groove (14), and air extraction holes (17) connected with the vacuum groove (15) are formed in the side surface of the base (1).

7. The touch screen false voltage measuring clamp according to claim 6, wherein a plurality of through holes (16) are uniformly distributed on the surface of the limiting groove (14) in an array manner.

8. The touch screen false voltage measurement fixture of claim 7, wherein the radius of the through hole (16) is 0.1-0.2 mm.

9. The touch screen false voltage measurement fixture according to claim 6, characterized in that the orifice of the air extraction hole (17) is provided with a fillet, the radius of which is 0.2mm.

10. The touch screen false voltage measurement clamp according to claim 1, wherein the base (1) is made of a skid material integrally cut by CNC.