Bearing jig and test equipment

Abstract

The invention relates to the technical field of display product testing, and discloses a bearing jig and testing device.The bearing jig comprises an insulating bottom plate, a metal bearing plate and a control module, the insulating bottom plate comprises a main body part and a protruding part, the protruding part is provided with an adjustable resistor module and a vacuum generator, and the surface of the metal bearing plate is provided with a plurality of air suction holes; an air inlet hole, a plurality of air suction holes and a reserved binding post are arranged on the metal bearing plate, the reserved binding post is connected with the main body part of the insulating bottom plate and the metal bearing plate, the control module is electrically connected with the adjustable resistor module, and the bearing jig can flatly adsorb a product on a platen through the air suction holes formed in the surface of the metal bearing plate; the test data deviation caused by the warping size difference of different products is avoided, and meanwhile, the adjustable resistor module is arranged, so that the resistance value of each adjustable resistor can be simulated and adjusted according to data comparison to realize the consistency of test environment values of different products, the final test error is reduced, and the test accuracy is improved.

Description

Technical Field

[0001] This invention relates to the field of display product testing technology, and in particular to a support fixture and testing equipment. Background Technology

[0002] In the flat panel display industry, every display product undergoes full-function testing before shipment to ensure product quality. During the manufacturing process, a functional test is often added to the Sensor+FPC process to filter out defective sensors, reducing manpower and material losses caused by defective products flowing to later processes and lowering costs. Current technology typically involves placing the product on an insulating foam platform and connecting it to a matching IC solution provider's test board and production testing software to determine if the capacitive touchscreen has defects such as open or short circuits and meets the IC solution provider's specifications. However, this method of functional testing using IC-matched production testing tools and software calculates the simulated capacitance of each node on the screen, which is easily affected by the product's bonding condition, surface characteristics, environment, and warpage. In the Sensor+FPC process, due to poor product surface characteristics and significant warpage, coupled with the influence of the testing environment, functional testing suffers from numerous misjudgments, severely impacting test pass rates and yields. In addition, the inconsistency between the Sensor+FPC product status and the FQC product status (fitted LCM) leads to significant differences in the calculated analog capacitors, resulting in inconsistent software judgments. Consequently, good products may pass through the card while defective products may be missed. Summary of the Invention

[0003] The present invention aims to solve at least one problem mentioned in the background art. To this end, the present invention proposes a support fixture and testing equipment, which can adjust the resistance value to achieve consistent testing environment values ​​for different products, thereby reducing the final testing error and improving testing accuracy.

[0004] According to a first aspect of the present invention, a support fixture includes an insulating base plate, a metal support plate, and a control module. The insulating base plate includes a main body and a protrusion. An adjustable resistor module and a vacuum generator are disposed on the protrusion. The surface of the metal support plate is provided with a plurality of suction holes, and the metal support plate is provided with an air inlet and a reserved terminal block. The reserved terminal block connects the main body of the insulating base plate and the metal support plate. The control module is electrically connected to the adjustable resistor module.

[0005] Therefore, by setting multiple air suction holes on the surface of the metal support plate, the product can be flatly adsorbed onto the plate, avoiding test data deviations caused by differences in the size of warpage between different products. At the same time, by setting an adjustable resistor module, the resistance value of each adjustable resistor can be adjusted according to the data comparison to ensure that the test environment values ​​of different products are consistent, thereby reducing the final test error and improving the accuracy of the test.

[0006] According to another embodiment of the present invention, a positioning block is provided on the surface of the metal support plate away from the insulating base plate. The positioning block is arranged along the circumferential direction of the metal support plate and together with the metal support plate, forms the support space.

[0007] According to another embodiment of the present invention, the positioning strip is disposed on at least two adjacent sides of the metal support plate.

[0008] According to another embodiment of the present invention, a plurality of the air intake holes are evenly distributed on the surface of the metal support plate away from the insulating base plate.

[0009] According to another embodiment of the present invention, the diameter of the air intake hole is within 1 mm.

[0010] According to another embodiment of the present invention, the air inlet is disposed on the side surface of the metal support plate near the vacuum generator.

[0011] According to another embodiment of the present invention, a one-way valve is provided between the vacuum generator and the air inlet, and the one-way valve is connected to the vacuum generator and the air inlet through an air inlet pipe.

[0012] According to another embodiment of the present invention, the adjustable resistor module is provided with an adjustable parallel resistor, an adjustment knob and a grounding post, wherein the adjustment knob and the grounding post are disposed on the adjustable parallel resistor.

[0013] According to another embodiment of the present invention, the metal bearing plate is one of copper, aluminum, aluminum alloy or copper alloy.

[0014] A test apparatus according to a second aspect of the present invention includes any of the above-described support fixtures.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention discloses a support fixture and testing equipment. The support fixture includes an insulating base plate, a metal support plate, and a control module. The insulating base plate includes a main body and a protruding part. An adjustable resistor module and a vacuum generator are disposed on the protruding part. The surface of the metal support plate is provided with multiple suction holes, and the metal support plate is also provided with an air inlet, multiple suction holes, and reserved terminals. The reserved terminals connect the main body of the insulating base plate and the metal support plate. The control module is electrically connected to the adjustable resistor module. By providing multiple suction holes on the surface of the metal support plate, the support fixture can flatly adsorb the product onto the platform, avoiding test data deviations caused by differences in the warp size of different products. At the same time, by setting up an adjustable resistor module, the resistance values ​​of each adjustable resistor can be simulated and adjusted according to data comparison to achieve consistent test environment values ​​for different products, thereby reducing the final test error and improving the accuracy of the test.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0019] Figure 1 A schematic diagram of an embodiment of the support fixture provided in this application;

[0020] Figure 2 A top view schematic diagram of an embodiment of the support fixture provided in this application;

[0021] Figure 3 A top view schematic diagram of another embodiment of the support fixture provided in this application;

[0022] The markings in the diagram mean:

[0023] 100. Load-bearing fixture;

[0024] 110. Insulating base plate; 111. Main body; 112. Protrusion;

[0025] 120. Metal support plate; 121. Air intake hole; 122. Air inlet hole; 123. Reserved terminal block;

[0026] 124. Positioning block; 125. Bearing space;

[0027] 130. Control module;

[0028] 140. Adjustable resistor module; 141. Adjustable parallel resistor element; 142. Adjustment knob;

[0029] 143. Grounding post;

[0030] 150. Vacuum generator;

[0031] 160. Check valve;

[0032] 170. Air intake pipe. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0039] To illustrate the load-bearing fixture and testing equipment provided in this application, the technical solutions provided in the embodiments of this application are described below with reference to the accompanying drawings.

[0040] refer to Figures 1-3 The support fixture 100 according to an embodiment of the first aspect of the present invention is described as follows: Figures 1-3 As shown, the support fixture 100 includes an insulating base plate 110, a metal support plate 120, and a control module 130. Specifically, the insulating base plate 110 includes a main body 111 and a protrusion 112. The protrusion 112 is located on one side of the main body 111 and does not coincide with the vertical shape of the insulating base plate 110. Furthermore, an adjustable resistor module 140 and a vacuum generator 150 are provided on the protrusion 112. It can be understood that the adjustable resistor module 140 can adjust the resistance value, so that the products under test in different states can obtain consistent data benchmarks and distribution trends, reducing the differences caused by different data benchmarks. The vacuum generator 150 is used to apply pressure to the metal support plate 120. The support plate 120 provides airflow for vacuum adsorption. Furthermore, the surface of the metal support plate 120 is provided with multiple suction holes 121, which are used to adsorb and fix the product to be tested. Furthermore, the metal support plate 120 is provided with an air inlet 122 and a reserved terminal block 123. The reserved terminal block 123 connects the main body 111 of the insulating base plate 110 and the metal support plate 120. The reserved terminal block 123 can be used for internal wiring, and at the same time, it can realize the installation and fixation of the insulating base plate 110 and the metal support plate 120. Furthermore, the control module 130 is electrically connected to the adjustable resistor module 140 to realize the resistance adjustment of the adjustable resistor module 140.

[0041] It can be seen that by providing a plurality of suction holes 121 on the surface of the metal carrier plate 120, the above-mentioned carrier fixture 100 can flatly adsorb the product on the table board, avoiding test data deviation caused by different warpage sizes of different products. At the same time, by setting the adjustable resistance module 140, the resistance values of each adjustable resistance can be simulated and adjusted according to data comparison to make the test environment values of different products consistent, thereby reducing the final test error and ultimately improving the test accuracy.

[0042] It should be noted that the shapes and thicknesses of the main body portion 111 and the protruding portion 112 can be determined according to specific usage scenarios. Preferably, the shapes of the main body portion 111 and the protruding portion 112 can be regular rectangles, squares, circles or ellipses, which are convenient for processing and use.

[0043] It should be noted that a positioning and clamping component can be provided on the surface of the metal carrier plate 120 in contact with the product to be detected, so as to realize the rapid positioning, fixing and disassembly of the product to be detected.

[0044] It should be noted that the reserved terminal 123 can be a grounding component, thereby reducing the interference of external factors such as static electricity on the detection process.

[0045] According to an embodiment of the present invention, as Figures 1-3 shown, a positioning block 124 is provided on the surface of the metal carrier plate 120 away from the insulating bottom plate 110. The positioning block 124 is arranged along the circumferential direction of the metal carrier plate 120 and jointly encloses a carrying space 125 with the metal carrier plate 120. Exemplarily, when the product to be detected needs to be detected, the product to be detected is quickly positioned and placed in the carrying space 125 through the positioning block 124. Or, when the detection of the product to be detected is completed, the positioning and picking-up operations of the product to be detected are realized through the positioning block 124.

[0046] It should be noted that the positioning block 124 can be an integral structure. At this time, the shape of the positioning block 124 can be approximately "7"-shaped and arranged along the two side edges of the metal carrier plate 120. Or, the shape of the positioning block 124 can be approximately "匸"-shaped and arranged along the three side edges of the metal carrier plate 120. Or, the positioning block 124 can be a split structure, that is, the positioning block 124 can be composed of at least two split structures, and at least two side edges are separately provided with split structures.

[0047] According to an embodiment of the present invention, as Figures 1-3As shown, the positioning strips are set on at least two adjacent sides of the metal support plate 120. It can be understood that by setting the positioning strips on two adjacent sides, the positioning effect can be better, and too many positioning strips can be set, which would restrict the large-sized products to be tested.

[0048] It should be noted that a flexible body (not shown in the figure) can be provided on the side surface of the positioning strip near the product to be tested. The flexible body is set on the positioning strip by adhesive. For example, when the product to be tested is placed in the bearing space 125, the side wall of the product to be tested abuts against the flexible body. Since the flexible body can undergo flexible deformation, it can prevent the product to be tested from making hard contact with the bearing fixture 100 during the placement process. The flexible body can protect the appearance of the product to be tested and prevent scratches, abrasions or excessive compression from causing appearance damage during the placement process.

[0049] It should be noted that the shape and size of the positioning strip can be determined according to the specific application scenario, and no specific restrictions are imposed here.

[0050] According to one embodiment of the present invention, such as Figures 1-3 As shown, multiple suction holes 121 are evenly distributed on the surface of the metal support plate 120 away from the insulating base plate 110. It can be understood that by evenly distributing multiple suction holes 121 on the surface of the metal support plate 120 away from the insulating base plate 110, the product to be tested can be evenly adsorbed after being placed on the metal support plate 120, thereby reducing the impact of differences between different areas on the test results.

[0051] According to one embodiment of the present invention, such as Figures 1-3 As shown, the diameter of the suction hole 121 is within 1 mm. It is understandable that the diameter of the suction hole 121 should not be too large to avoid excessive adsorption of the product to be tested during the adsorption process, which would affect the test results.

[0052] It should be noted that the spacing between the multiple air intake holes 121 can be determined according to the specific application scenario. Preferably, the spacing between the multiple air intake holes 121 is greater than 10mm.

[0053] According to one embodiment of the present invention, such as Figures 1-3 As shown, the air inlet 122 is provided on the side surface of the metal support plate 120 near the vacuum generator 150. It can be understood that by providing the air inlet 122 on the side surface closest to the vacuum generator 150, the length of the air inlet pipe 170 can be reduced, thereby avoiding the air inlet pipe 170 being too long and occupying too much space, and at the same time reducing manufacturing costs.

[0054] According to one embodiment of the present invention, such as Figures 1-3 As shown, a one-way valve 160 is provided between the vacuum generator 150 and the air inlet 122. The one-way valve 160 is connected to the vacuum generator 150 and the air inlet 122 through the air inlet pipe 170. It can be understood that by setting the one-way valve 160, the air intake volume can be controlled, and the reverse output of gas in the air inlet pipe 170 can be avoided, which would affect the overall adsorption effect.

[0055] According to one embodiment of the present invention, such as Figures 1-3 As shown, the adjustable resistor module 140 is provided with an adjustable parallel resistor body 141, an adjustment knob 142, and a grounding post 143. The adjustment knob 142 and the grounding post 143 are set on the adjustable parallel resistor body 141. It can be understood that the adjustment knob 142 can realize the rapid adjustment of the resistance of the adjustable parallel resistor body 141, and the grounding post 143 can realize the grounding of the adjustable resistor module 140, so as to avoid the influence of static electricity and other factors on the detection.

[0056] According to one embodiment of the present invention, such as Figures 1-3 As shown, the metal bearing plate 120 is one of copper, aluminum, aluminum alloy or copper alloy. It can be understood that the metal bearing plate 120 needs to have a certain strength and hardness, while taking into account the production cost. Therefore, the metal bearing plate 120 can be copper, aluminum or its alloy.

[0057] It should be noted that in some other embodiments, the metal support plate 120 can also be selected from other metals that meet the requirements, as long as they meet the usage requirements, and no specific limitation is made here.

[0058] The following is for reference. Figures 1-3 A test apparatus according to an embodiment of the second aspect of the present invention is described, such as Figures 1-3 As shown, the testing equipment includes a base (not shown) and a support fixture 100 as described above. The support fixture 100 is detachably connected to the base, and the testing equipment performs testing operations on the product to be tested placed on the support fixture 100. The detachable connection of the support fixture 100 to the base facilitates the removal of the support fixture 100 from the base for changing the product to be tested. Therefore, the testing equipment can accurately test products of different specifications using the support fixture 100.

[0059] The above-described load-bearing fixture and testing equipment provided in this application are preferred embodiments and should not be construed as limiting the scope of protection of this application. Those skilled in the art should know that various improvements or substitutions can be made without departing from the concept of this application, and all improvements or substitutions should be within the scope of protection of this application, that is, the scope of protection of this application should be determined by the claims.

[0060] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

Claims

1. A support fixture, characterized in that, include: An insulating base plate, comprising a main body and a protruding part, wherein an adjustable resistor module and a vacuum generator are provided on the protruding part; A metal support plate, the surface of which is provided with a plurality of air intake holes, and the metal support plate is also provided with an air inlet and a reserved terminal block, the reserved terminal block connecting the main body of the insulating base plate and the metal support plate; A control module, which is electrically connected to the adjustable resistor module.

2. The bearing fixture as described in claim 1, characterized in that, A positioning block is provided on the surface of the metal support plate away from the insulating base plate. The positioning block is arranged along the circumferential direction of the metal support plate and together with the metal support plate, forms the support space.

3. The bearing fixture as described in claim 2, characterized in that, The positioning strip is disposed on at least two adjacent sides of the metal support plate.

4. The bearing fixture as described in claim 1, characterized in that, The multiple air intake holes are evenly distributed on the surface of the metal support plate away from the insulating base plate.

5. The bearing fixture as described in claim 4, characterized in that, The diameter of the air intake hole is within 1 mm.

6. The bearing fixture as described in claim 1, characterized in that, The air inlet is located on the surface of the metal support plate near the vacuum generator.

7. The bearing fixture as described in claim 1, characterized in that, A one-way valve is provided between the vacuum generator and the air inlet, and the one-way valve is connected to the vacuum generator and the air inlet through an air inlet pipe.

8. The bearing fixture as described in claim 1, characterized in that, The adjustable resistor module is provided with an adjustable parallel resistor, an adjustment knob and a grounding post, with the adjustment knob and grounding post located on the adjustable parallel resistor.

9. The bearing fixture as described in claim 1, characterized in that, The metal support plate is one of copper, aluminum, aluminum alloy, or copper alloy.

10. A testing device, characterized in that, Includes the support fixture as described in any one of claims 1-9.

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