Tin coating area testing equipment

Abstract

The utility model provides a tinning area testing device. The tinning area testing device comprises a testing rack, a lifting driving mechanism, a needle mold assembly and a clamping platform. The lifting driving mechanism is fixedly connected with the test rack, the needle mold assembly is located above the clamping platform and comprises a mold frame, an elastic piece and a probe body, the mold frame is connected with the output end of the lifting driving mechanism, the probe body is in sliding connection with the mold frame, and the sliding direction of the probe body is consistent with the lifting direction of the mold frame; the elastic piece is arranged between the top of the probe body and the mold frame, and a plurality of probe heads are arranged at the bottom of the probe body. According to the tinning area testing equipment, the probe body is arranged in an elastic sliding manner, so that the probe body can be in more flexible contact with the tinning area, the shallowest probe print is ensured, meanwhile, the plurality of probe heads are arranged at the bottom of the probe body, the total contact area between the plurality of probe heads and the tinning area is larger, the testing stability can be ensured, and the testing efficiency is improved. The debugging period of the equipment is greatly shortened, and the debugging difficulty of debugging personnel is reduced.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment in the Shangxi District, and in particular to a testing equipment for the Shangxi District. Background Technology

[0002] With the development of technology, more and more electronic products are on the market, many of which use solder joints to achieve electrical connections between components. After the solder joint is completed, it is generally necessary to use a solder joint testing device to perform electrical function tests on the solder joint. However, the probes of existing solder joint testing devices make direct, rigid contact with the solder joint. This can easily lead to problems such as leaving obvious pin marks on the solder joint due to excessive pressure, or insufficient pressure, or insufficient contact area due to protrusions on the surface of the solder joint and the bottom surface of the probe, resulting in unstable testing. In applications where product appearance is critical, the probe pressure becomes difficult to control, and it is difficult to balance pin marks and test stability.

[0003] Therefore, it is necessary to provide a tin-plating area testing device to solve the above-mentioned technical problems. Utility Model Content

[0004] This invention provides a tinning zone testing device to solve the problems of existing tinning zone testing devices that easily leave obvious pin marks in the tinning zone and unstable testing.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a tinning zone testing device, which includes: a testing frame, a lifting drive mechanism, a needle mold assembly, and a clamping platform, wherein the clamping platform is used to clamp the product to be tested;

[0006] The test frame is disposed on one side of the clamping platform. The lifting drive mechanism is fixedly connected to the test frame. The needle mold assembly is located above the clamping platform. The needle mold assembly includes a mold frame, an elastic element, and a probe body. The mold frame is connected to the output end of the lifting drive mechanism. The lifting drive mechanism drives the mold frame to move vertically up and down. The probe body is slidably connected to the mold frame. The sliding direction of the probe body is consistent with the lifting direction of the mold frame. The elastic element is disposed between the top of the probe body and the mold frame. Multiple needles are disposed at the bottom of the probe body.

[0007] In this utility model, the mold frame includes a template and a pressure cap. The template is provided with a first mounting groove, and a through hole is provided through the first mounting groove. The probe body includes a mounting block and a probe block. The mounting block is movably disposed in the first mounting groove, and the probe block passes through the through hole. The pressure cap is connected to the template at a position opposite to the first mounting groove. The elastic element is disposed between the mounting block and the pressure cap.

[0008] The tinning zone testing equipment also includes a connector. A second mounting slot is provided at the end of the template away from the first mounting slot. The connector is disposed in the second mounting slot. The connector and the probe body are electrically connected through a flexible circuit board.

[0009] Furthermore, the needle mold assembly also includes a pressure plate, with one end of the flexible circuit board clamped between the pressure plate and the mounting block.

[0010] Furthermore, the elastic element is a spring, and the needle mold assembly also includes a spring plate with a connecting post on the spring plate. The pressure plate has a connecting hole, one end of the elastic element is sleeved on the outer periphery of the connecting post, and the other end of the elastic element is sleeved in the connecting hole. The spring plate is connected to the pressure plate.

[0011] In addition, the probe block includes a first needle block and a second needle block, the first needle block being connected between the mounting block and the second needle block, and the radial cross-sectional area of ​​the first needle block being greater than the radial cross-sectional area of ​​the second needle block.

[0012] In this invention, the bottom of the probe body is formed into the needle head by milling, and the radial cross-section of the needle head is prismatic.

[0013] In this invention, the axial length of the needle is between 0.2 and 0.5 mm.

[0014] In this utility model, the tinning zone testing equipment further includes a connecting frame, which is a frame structure. The connecting frame has opposite sides that are respectively connected to the output end of the lifting drive mechanism and the mold frame. The bottom of the other opposite sides of the connecting frame is provided with limit posts, which are used to contact the clamping platform to limit the descent position of the needle mold assembly.

[0015] In this invention, the top surface of the clamping platform is embedded with a suction cup mechanism for gripping the product to be tested. The clamping platform has fixed clamping blocks on two adjacent sides and movable clamping blocks that slide elastically on the other two adjacent sides. Multiple movable clamping blocks are mounted on a sliding plate. The sliding plate is driven to slide by a linear drive mechanism at the bottom of the clamping platform. The sliding direction of the sliding plate is consistent with the sliding direction of the movable clamping blocks.

[0016] Compared with the prior art, the advantages of this utility model are as follows: The tinning area testing device of this utility model uses an elastic sliding setting of the probe body, which allows the probe body to make more flexible contact with the tinning area, ensuring the shallowest needle mark. At the same time, multiple needles are set at the bottom of the probe body, and the total contact area between the multiple needles and the tinning area is larger, which can ensure the stability of the test, greatly shorten the debugging cycle of the equipment, and reduce the debugging difficulty for the debugging personnel. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments are briefly introduced below. The drawings described below are only the corresponding drawings of some embodiments of this utility model.

[0018] Figure 1 This is a schematic diagram of a preferred embodiment of the tin-filled testing equipment of this utility model.

[0019] Figure 2 This is one of the exploded structural diagrams of the needle mold assembly of the tin-filled testing equipment of this utility model.

[0020] Figure 3 This is the second exploded structural diagram of the needle mold assembly of the tin-filled testing equipment of this utility model.

[0021] Figure 4 This is a magnified view of a portion of the structure of the needle in the tin-filled testing device of this utility model. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] The directional terms mentioned in this utility model, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", are only for reference to the orientation of the accompanying drawings. The directional terms used are for the purpose of explaining and understanding this utility model, and are not intended to limit this utility model.

[0024] The terms "first" and "second" in this utility model are used for descriptive purposes only and should not be construed as indicating or implying relative importance, nor as a restriction on the order of events.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, a connection can be a detachable connection or a connection of an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In existing soldering area testing equipment, the probes make direct, rigid contact with the soldering area. This can easily lead to noticeable needle marks on the soldering area due to excessive downward pressure, or insufficient downward pressure, or a small contact area due to the protruding parts on the surface of the soldering area contacting the bottom of the probe. This results in unstable testing. In applications where product appearance is critical, the probe force is difficult to control, and it is difficult to balance needle marks and testing stability.

[0027] The following is a preferred embodiment of a tin-filled testing device provided by this utility model that can solve the above-mentioned technical problems.

[0028] Please refer to Figure 1 and Figure 2 ,in Figure 1 This is a schematic diagram of a preferred embodiment of the tin-filled testing equipment of this utility model. Figure 2 This is one of the exploded structural diagrams of the needle mold assembly of the tin-filled testing equipment of this utility model.

[0029] In the diagram, units with similar structures are represented by the same labels.

[0030] This embodiment provides a tinning zone testing device, which includes: a testing frame 11, a lifting drive mechanism 12, a needle mold assembly 13, and a clamping platform 14, the clamping platform 14 being used to clamp the product to be tested.

[0031] The test frame 11 is positioned on one side of the clamping platform 14. A lifting drive mechanism 12 is fixedly connected to the test frame 11. A probe mold assembly 13 is located above the clamping platform 14. The probe mold assembly 13 includes a mold frame, an elastic element 132, and a probe body 133. The mold frame is connected to the output end of the lifting drive mechanism 12, which drives the mold frame to move vertically. The probe body 133 is slidably connected to the mold frame, with the sliding direction of the probe body 133 consistent with the lifting direction of the mold frame. The elastic element 132 is positioned between the top of the probe body 133 and the mold frame, enabling the probe body 133 to slide elastically. This allows the probe body 133 to make more flexible contact with the soldering area, ensuring the shallowest possible needle mark, while the elasticity also ensures stable contact between the probe body 133 and the soldering area.

[0032] The bottom of the probe body 133 is provided with multiple needles 1334. The gaps between the multiple needles 1334 can avoid the protruding parts on the soldering area with a high probability, so that the overall contact area between the probe body 133 and the soldering area is larger, ensuring the stability of the test, greatly shortening the equipment debugging cycle, and reducing the debugging difficulty for the debugging personnel.

[0033] Please refer to Figure 2 In this embodiment, the mold frame includes a template 1311 and a pressure cap 1312. The template 1311 is provided with a first mounting groove 13111 and a through hole is provided through the first mounting groove 13111. The probe body 133 includes a mounting block 1331 and a probe block. The mounting block 1331 is movably disposed in the first mounting groove 13111. The probe block passes through the through hole to contact the soldering area. The pressure cap 1312 is connected to the template 1311 at a position opposite to the first mounting groove 13111. An elastic member 132 is disposed between the mounting block 1331 and the pressure cap 1312.

[0034] In this embodiment, the soldering area testing device also includes a connector 134. A second mounting groove 13112 is provided at the end of the template 1311 away from the first mounting groove 13111. The connector 134 is disposed within the second mounting groove 13112, and the connector 134 and the probe body 133 are electrically connected via a flexible circuit board 135. The probe 1334 contacts the soldering area, transmitting the test signal to the connector 134 via the flexible circuit board 135. The connector 134 connects to external instruments, thus enabling testing operations.

[0035] In this embodiment, the needle mold assembly 13 further includes a pressure plate 136, and one end of the flexible circuit board 135 is clamped between the pressure plate 136 and the mounting block 1331, which enables the flexible circuit board 135 to maintain a stable electrical connection with the probe body 133.

[0036] Please refer to Figure 3 In this embodiment, the elastic element 132 is a spring. The needle mold assembly 13 also includes a spring plate 137, on which a connecting post 1371 is provided. The pressure cap 1312 is provided with a connecting hole 13121. One end of the elastic element 132 is sleeved on the outer periphery of the connecting post 1371, and the other end of the elastic element 132 is sleeved in the connecting hole 13121. The spring plate 137 is connected to the pressure plate 136. The elastic element 132 is stably positioned, thereby stably realizing the elastic sliding of the probe body 133.

[0037] In addition, the probe block includes a first needle block 1332 and a second needle block 1333. The first needle block 1332 is connected between the mounting block 1331 and the second needle block 1333. The radial cross-sectional area of ​​the first needle block 1332 is larger than that of the second needle block 1333. The probe body 133 has high overall strength, while the small second needle block 1333 facilitates contact with the soldering area and is less likely to interfere with other components around the soldering area.

[0038] Please refer to Figure 4 In this embodiment, the bottom of the probe body 133 is milled to form the needle head 1334. The milling cutter only needs to move horizontally and vertically at the bottom of the probe body 133 to easily machine the needle head 1334. The radial cross-section of the needle head 1334 in this embodiment is prismatic, and the needle head 1334 has high strength.

[0039] In this embodiment, the axial length of the needle 1334 is between 0.2-0.5mm, which is very short. The needle 1334 is not easily damaged and has a long service life.

[0040] Please refer to Figure 1 The tinning area testing equipment in this embodiment also includes a connecting frame 15. The connecting frame 15 is a frame structure. The opposite sides of the connecting frame 15 are respectively connected to the output end of the lifting drive mechanism 12 and the mold frame. The bottom of the other opposite sides of the connecting frame 15 is provided with limit posts 151. The limit posts 151 are used to contact the clamping platform 14 to limit the descent position of the needle mold assembly 13.

[0041] In this embodiment, a suction cup mechanism 141 for clamping the product to be tested is embedded in the top surface of the clamping platform 14. Fixed clamping blocks 142 are provided on adjacent sides of the clamping platform 14, and elastically sliding movable clamping blocks 143 are provided on other adjacent sides of the clamping platform 14. Multiple movable clamping blocks 143 can be mounted on a sliding plate 144, which is driven to slide by a linear drive mechanism at the bottom of the clamping platform 14. The sliding direction of the sliding plate 144 is consistent with the sliding direction of the movable clamping blocks 143. Thus, through the movement of the sliding plate 144 and the elastic sliding of the movable clamping blocks 143, the product to be tested can be conveniently and stably clamped in cooperation with the fixed clamping blocks 142.

[0042] The working principle of this utility model is as follows: First, the product to be tested is clamped on the clamping platform 14. Then, the lifting drive mechanism 12 is controlled to drive the needle mold assembly 13 to descend to the preset position. This process will compress the elastic element 132 and enable multiple needles 1334 to form stable contact with the solder area of ​​the product to be tested through the elastic force, so that the corresponding functional test can be performed.

[0043] The soldering area testing device of this preferred embodiment uses a probe body that is elastically slidably set, so that the probe body can make more flexible contact with the soldering area, ensuring the shallowest possible needle mark. At the same time, multiple needles are set at the bottom of the probe body, and the total contact area between the multiple needles and the soldering area is larger, which can ensure the stability of the test, greatly shorten the debugging cycle of the device, and reduce the debugging difficulty for the debugging personnel.

[0044] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A tinning zone testing device, characterized in that, include: The test frame, lifting drive mechanism, needle mold assembly, and clamping platform are used to clamp the product to be tested. The test frame is disposed on one side of the clamping platform. The lifting drive mechanism is fixedly connected to the test frame. The needle mold assembly is located above the clamping platform. The needle mold assembly includes a mold frame, an elastic element, and a probe body. The mold frame is connected to the output end of the lifting drive mechanism. The lifting drive mechanism drives the mold frame to move vertically up and down. The probe body is slidably connected to the mold frame. The sliding direction of the probe body is consistent with the lifting direction of the mold frame. The elastic element is disposed between the top of the probe body and the mold frame. Multiple needles are disposed at the bottom of the probe body.

2. The tinning zone testing equipment according to claim 1, characterized in that, The mold frame includes a template and a pressure cap. The template has a first mounting groove with a through hole. The probe body includes a mounting block and a probe block. The mounting block is movably disposed in the first mounting groove, and the probe block passes through the through hole. The pressure cap is connected to the template at a position opposite to the first mounting groove. The elastic element is disposed between the mounting block and the pressure cap.

3. The tinning zone testing equipment according to claim 2, characterized in that, The tinning zone testing equipment also includes a connector. A second mounting slot is provided at the end of the template away from the first mounting slot. The connector is disposed in the second mounting slot. The connector and the probe body are electrically connected through a flexible circuit board.

4. The tinning zone testing equipment according to claim 3, characterized in that, The needle mold assembly also includes a pressure plate, and one end of the flexible circuit board is clamped between the pressure plate and the mounting block.

5. The tinning zone testing equipment according to claim 4, characterized in that, The elastic element is a spring, and the needle mold assembly also includes a spring plate. A connecting post is provided on the spring plate, and a connecting hole is provided on the pressure plate. One end of the elastic element is sleeved on the outer periphery of the connecting post, and the other end of the elastic element is sleeved in the connecting hole. The spring plate is connected to the pressure plate.

6. The tinning zone testing equipment according to claim 2, characterized in that, The probe block includes a first needle block and a second needle block. The first needle block is connected between the mounting block and the second needle block, and the radial cross-sectional area of ​​the first needle block is greater than the radial cross-sectional area of ​​the second needle block.

7. The tinning zone testing equipment according to claim 1, characterized in that, The probe body has its bottom end milled to form the needle tip, and the radial cross-section of the needle tip is prismatic.

8. The tinning zone testing equipment according to claim 1, characterized in that, The axial length of the needle is between 0.2 and 0.5 mm.

9. The tinning zone testing equipment according to claim 1, characterized in that, The tinning zone testing equipment also includes a connecting frame, which is a frame structure. The connecting frame has opposite sides connected to the output end of the lifting drive mechanism and the mold frame, respectively. The bottom of the other opposite sides of the connecting frame is provided with limit posts, which are used to contact the clamping platform to limit the descent position of the needle mold assembly.

10. The tinning zone testing equipment according to claim 1, characterized in that, The clamping platform has a suction cup mechanism embedded in its top surface for gripping the product to be tested. The clamping platform has fixed clamping blocks on two adjacent sides and movable clamping blocks that slide elastically on the other two adjacent sides. Multiple movable clamping blocks are mounted on a sliding plate. The sliding plate is driven to slide by a linear drive mechanism at the bottom of the clamping platform. The sliding direction of the sliding plate is the same as the sliding direction of the movable clamping blocks.

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