Floating structure capable of prolonging service life of inner positioning needle

Abstract

The utility model relates to the technical field of PCB (printed circuit board) testing, in particular to a floating structure capable of prolonging the service life of an inner positioning pin, which comprises a bottom plate, a positioning plate, a fixed block, a positioning block, a connecting spring, an inner positioning pin floating block and an inner positioning pin, and is characterized in that the positioning plate is arranged on the upper surface of the bottom plate, and the fixed block is arranged on the upper surface of the positioning plate; the positioning block is arranged on the upper surface of the fixing block, a groove is formed in the upper surface of the positioning block, a connecting spring is arranged in the groove, the inner positioning needle floating block is fixedly connected with the connecting spring and located above the positioning block, and the inner positioning needle is arranged on the upper surface of the inner positioning needle floating block and pushes the inner positioning needle floating block to move up and down through the connecting spring. Therefore, the inner positioning pin is driven to move up and down, the independent floating height of the inner positioning pin is reduced, the appearance guide surface and the strength of the inner positioning pin floating block are increased, the inner positioning pin is not easy to break during use, the die repairing frequency is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB testing, in particular to a floating structure for prolonging the service life of an inner positioning pin. Background Art

[0002] In the production process of a PCB, in order to ensure the product quality of the PCB, after the PCB is manufactured, it is usually necessary to test the PCB. When the existing testing equipment tests the PCB main board after the outer shell is installed, most of them use the method of pushing the product laterally to make it close to the reference edge of the carrier board to reduce the cumulative tolerance. However, for irregular outer shells, when the traditional lateral pushing method is still used for testing, the positioning accuracy cannot meet the design requirements.

[0003] The prior art CN220064128U discloses a self-guiding floating positioning structure, which uses a floating guiding block to guide and position according to the contour of the product outer shell, is not limited by the product positioning accuracy and shape tolerance, has a simple and effective overall structure and high positioning accuracy, and at the same time adopts a hierarchical guiding structure. The guiding pin ensures no deviation during the up and down displacement process, and the floating guiding block ensures the precise positioning of the probe to minimize the positioning accuracy error caused by the tolerance dimension chain.

[0004] However, when the above floating positioning structure is in use, the probe of the probe module is easily damaged during pressing, and the mold needs to be repaired, thereby reducing the testing efficiency of the PCB main board. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a floating structure for prolonging the service life of an inner positioning pin, aiming to solve the technical problem that when the existing floating positioning structure is in use, the probe of the probe module is easily damaged during pressing, and the mold needs to be repaired, thereby reducing the testing efficiency of the PCB main board.

[0006] To achieve the above purpose, the utility model provides a floating structure for prolonging the service life of an inner positioning pin, including a bottom plate, and further including a positioning plate, a fixing block, a positioning block, a connecting spring, an inner positioning pin floating block and an inner positioning pin. The positioning plate is arranged on the upper surface of the bottom plate, the fixing block is arranged on the upper surface of the positioning plate, the positioning block is arranged on the upper surface of the fixing block, a groove is formed on the upper surface of the positioning block, the connecting spring is arranged in the groove, the inner positioning pin floating block is fixedly connected with the connecting spring and is located above the positioning block, and the inner positioning pin is arranged on the upper surface of the inner positioning pin floating block.

[0007] Wherein, the positioning plate is uniformly distributed with positioning holes, the fixing block is uniformly distributed with through holes, the number of the positioning holes is the same as that of the through holes, and the positions of the positioning holes correspond to those of the through holes one by one.

[0008] Wherein, fixing bolts are arranged in each of the positioning holes and the opening holes for connecting the positioning plate and the fixing block.

[0009] Wherein, each of the positioning blocks has at least two of the grooves, and one of the connecting springs is arranged in each of the grooves.

[0010] Wherein, at least two of the inner positioning pin floating blocks are arranged on each of the inner positioning pin floating blocks.

[0011] A floating structure for improving the service life of inner positioning pins according to the present invention. The positioning plate is arranged on the upper surface of the bottom plate, the fixing block is arranged on the upper surface of the positioning plate, the positioning block is arranged on the upper surface of the fixing block, the upper surface of the positioning block has a groove, the connecting spring is arranged in the groove, the inner positioning pin floating block is fixedly connected with the connecting spring and is located above the positioning block, the inner positioning pin is arranged on the upper surface of the inner positioning pin floating block, and the inner positioning pin floating block is pushed to move up and down by the connecting spring, so as to drive the inner positioning pin to move up and down together with the inner positioning pin floating block, thereby reducing the individual floating height of the inner positioning pin, increasing the outer profile guiding surface and the strength of the inner positioning pin floating block itself, being more rapid and convenient in use, not being easily broken for the inner positioning pin, reducing the die repair frequency, reducing the downtime, reducing the use cost of the inner positioning pin, improving the production efficiency, and solving the technical problem that when the existing floating positioning structure is in use, the probe of the probe module is easily damaged during pressing contact, and die repair is required, thereby reducing the efficiency of testing the PCB main board. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0013] Figure 1 It is a schematic diagram of the overall structure of a floating structure for improving the service life of inner positioning pins according to the first embodiment of the present invention.

[0014] Figure 2 It is a schematic diagram of the connection between the inner positioning pin floating block and the inner positioning pin of a floating structure for improving the service life of inner positioning pins according to the first embodiment of the present invention.

[0015] Figure 3 It is a schematic cross-sectional view along the inner positioning pin of a floating structure for improving the service life of inner positioning pins according to the first embodiment of the present invention.

[0016] Figure 4Schematic cross-sectional view along the connecting spring of the floating structure for prolonging the service life of the inner positioning pin in the first embodiment of the present utility model.

[0017] In the figure: 101 - bottom plate, 102 - positioning plate, 103 - fixing block, 104 - positioning block, 105 - connecting spring, 106 - inner positioning pin floating block, 107 - inner positioning pin, 108 - groove, 109 - positioning hole, 110 - opening, 111 - fixing bolt. Detailed implementation manner

[0018] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0019] First embodiment

[0020] Please refer to Figures 1 to 4 , Figure 1 is the overall structural schematic diagram of the floating structure for prolonging the service life of the inner positioning pin in the first embodiment of the present utility model, Figure 2 is the connection schematic diagram of the inner positioning pin floating block 106 and the inner positioning pin 107 of the floating structure for prolonging the service life of the inner positioning pin in the first embodiment of the present utility model, Figure 3 is the cross-sectional schematic diagram along the inner positioning pin 107 of the floating structure for prolonging the service life of the inner positioning pin in the first embodiment of the present utility model, Figure 4 is the cross-sectional schematic diagram along the connecting spring 105 of the floating structure for prolonging the service life of the inner positioning pin in the first embodiment of the present utility model.

[0021] The present utility model provides a floating structure for prolonging the service life of the inner positioning pin: including a bottom plate 101, a positioning plate 102, a fixing block 103, a positioning block 104, a connecting spring 105, an inner positioning pin floating block 106 and an inner positioning pin 107. By the foregoing solution, the problem that the probe of the probe module is easily damaged during pressing in the existing floating positioning structure and needs to be repaired, thereby reducing the efficiency of testing the PCB main board, is solved. It can be understood that the foregoing solution can be used in the scenario of testing the PCB after the PCB is manufactured.

[0022] In this embodiment, the connecting spring 105 pushes the inner positioning pin floating block 106 to move up and down, thereby driving the inner positioning pin 107 to move up and down together with the inner positioning pin floating block 106, thereby reducing the individual lifting height of the inner positioning pin 107, increasing the outer guiding surface of the inner positioning pin floating block 106 and its own strength. During use, it is more rapid and convenient, and the inner positioning pin 107 is not easily broken, reducing the frequency of mold repair, reducing the downtime, reducing the use cost of the inner positioning pin 107, improving the production efficiency, and solving the technical problem that when the existing floating positioning structure is in use, the probe of the probe module is easily damaged during pressing contact and mold repair is required, thereby reducing the efficiency of testing the PCB main board.

[0023] Wherein, the positioning plate 102 is arranged on the upper surface of the bottom plate 101, the fixing block 103 is arranged on the upper surface of the positioning plate 102, the positioning block 104 is arranged on the upper surface of the fixing block 103, the upper surface of the positioning block 104 has a groove 108, the connecting spring 105 is arranged in the groove 108, the inner positioning pin floating block 106 is fixedly connected with the connecting spring 105 and is located above the positioning block 104, the inner positioning pin 107 is arranged on the upper surface of the inner positioning pin floating block 106, the positioning plate 102 is detachably arranged on the bottom plate 101, the fixing block 103 is detachably arranged on the positioning plate 102, the bottom plate 101, the positioning plate 102 and the fixing block 103 form a three-layer floating module, the positioning block 104 is detachably arranged on the fixing block 103, the connecting spring 105 is arranged in the groove 108 of the positioning block 104, the connecting spring 105 is larger in size than the micro spring, so that the connecting spring 105 is not easily bent and stuck in the groove 108, and the connecting spring 105 has a self-restoring function, so that the connecting spring 105 will be compressed when it is subjected to a compression force, and when the compression force applied to the connecting spring 105 disappears, the self-restoring function of the connecting spring 105 will drive the inner positioning pin floating block 106 to move in the direction of restoring to the original position, thereby driving the inner positioning pin 107 to move in the direction of restoring to the original position.

[0024] Secondly, the positioning plate 102 is evenly distributed with positioning holes 109, the fixing block 103 is evenly distributed with openings 110, the number of the positioning holes 109 is the same as the number of the openings 110, and the positions of the positioning holes 109 correspond to the positions of the openings 110 one by one.

[0025] Thirdly, fixing bolts 111 are arranged in each of the positioning holes 109 and the openings 110 for connecting the positioning plate 102 and the fixing block 103.

[0026] Meanwhile, each of the positioning blocks 104 has at least two of the grooves 108, and each of the grooves 108 is provided with one of the connecting springs 105.

[0027] Finally, at least two of the inner positioning pin floating blocks 106 are provided with the inner positioning pins 107.

[0028] When using a floating structure for improving the service life of the inner positioning pins of the present utility model, a PCB main board to be tested is placed above the inner positioning pins 107 of the floating structure. By adopting a three-layer floating module, and under the action of the inner positioning pin floating blocks 106 and the connecting springs 105, floating positioning is performed on the inner positioning pins 107 to ensure that the inner positioning pins 107 can be accurately positioned and the PCB main board can be stably tested. During the test, the connecting springs 105 push the inner positioning pin floating blocks 106 to move up and down, thereby driving the inner positioning pins 107 to move up and down together with the inner positioning pin floating blocks 106. Furthermore, the individual floating height of the inner positioning pins 107 is reduced, the outer shape guiding surface and the strength of the inner positioning pin floating blocks 106 are increased. When in use, it is more rapid and convenient, and the inner positioning pins 107 are not easily broken, the die repair frequency is reduced, the downtime is reduced, the use cost of the inner positioning pins 107 is reduced, and the efficiency of testing the PCB main board is improved.

[0029] What is disclosed above is only a preferred embodiment of the present utility model. Certainly, the scope of rights of the present utility model cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present utility model still fall within the scope covered by the utility model.

Claims

1. A floating structure for improving the service life of an inner positioning pin, including a bottom plate, characterized in that, it further includes a positioning plate, a fixing block, a positioning block, a connecting spring, an inner positioning pin floating block and an inner positioning pin. The positioning plate is arranged on the upper surface of the bottom plate. The fixing block is arranged on the upper surface of the positioning plate. The positioning block is arranged on the upper surface of the fixing block. The upper surface of the positioning block has a groove, and the connecting spring is arranged in the groove. The inner positioning pin floating block is fixedly connected to the connecting spring and is located above the positioning block. The inner positioning pin is arranged on the upper surface of the inner positioning pin floating block.

2. The floating structure for improving the service life of an inner positioning pin according to claim 1, characterized in that, the positioning plate is evenly distributed with positioning holes, the fixing block is evenly distributed with openings, the number of the positioning holes is the same as the number of the openings, and the positions of the positioning holes correspond to the positions of the openings one by one.

3. The floating structure for improving the service life of an inner positioning pin according to claim 2, characterized in that, each of the positioning holes and the openings is provided with a fixing bolt for connecting the positioning plate and the fixing block.

4. The floating structure for improving the service life of an inner positioning pin according to claim 1, characterized in that, each of the positioning blocks has at least two of the grooves, and one of the connecting springs is arranged in each of the grooves.

5. The floating structure for improving the service life of an inner positioning pin according to claim 4, characterized in that, each of the inner positioning pin floating blocks is provided with at least two of the inner positioning pins.

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