Circuit board drilling positioning structure

Abstract

The utility model provides a circuit board drilling positioning structure, and relates to the technical field of circuit board machining, the circuit board drilling positioning structure comprises an X-shaped adjusting support, an expanding mechanism and four expansion positioning pins connected to the four ends of the X-shaped adjusting support, and the four expansion positioning pins are provided with fixing ends and tension supporting ends respectively; according to the utility model, through the arrangement of the X-shaped adjusting bracket, the positions of the four expansion positioning pins can be adjusted based on the size of the circuit board to be positioned, the applicability is wide, and meanwhile, due to the arrangement of the expansion positioning pins, in the process of sleeving the circuit board, the expansion positioning pins can be used for positioning the circuit board to be positioned. The expansion positioning pins are in a contraction state so that the circuit board can be sleeved in conveniently, and after the circuit board is sleeved in, the expansion positioning pins arranged at the four corners of the circuit board can be pulled from the periphery through the pulling and supporting mechanism at the bottom so that the dislocation deviation of the circuit board can be equally divided and aligned, and therefore the drilling hole position is more accurate, and a better positioning effect is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of circuit board processing, and in particular to a circuit board drilling positioning structure. Background Art

[0002] In recent years, my country's printed circuit board (PCB) manufacturing industry has developed rapidly, with total output value and total output ranking among the top in the world. Drilling is an important process in the production of PCB circuit boards. Before drilling, the circuit board on the workbench needs to be fixed. In the prior art, drilling positioning mainly adopts the bakelite positioning method. The positioning column is first fixed to the bakelite, and then the positioning hole of the PCB circuit board is inserted into the positioning column. This positioning method is inconvenient to insert the positioning column because there is a deviation in the hole position between the PCB boards when the positioning column is inserted. However, if the positioning column is reduced, the deviation of the positioning hole becomes larger, affecting the normal positioning effect, making it difficult to drill the inner layer of the PCB board.

[0003] In view of this, the present application aims to provide a circuit board drilling positioning structure to better solve the above-mentioned technical problems. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a circuit board drilling positioning structure, which can solve the technical problem of circuit board drilling positioning.

[0005] An embodiment of the present application provides a circuit board drilling positioning structure, including an X-shaped adjustment bracket, a propping mechanism, and a first expansion positioning pin, a second expansion positioning pin, a third expansion positioning pin, and a fourth expansion positioning pin connected to the four ends of the X-shaped adjustment bracket, wherein the first expansion positioning pin, the second expansion positioning pin, the third expansion positioning pin, and the fourth expansion positioning pin are respectively provided with a fixed end and a supporting end, and the propping mechanism is arranged near the bottom end of the circuit board to be positioned, and is used to support the supporting end.

[0006] In some embodiments, the supporting direction of the supporting ends on the first expansion positioning pin and the second expansion positioning pin is located on one of the diagonals of the circuit board to be positioned, and the supporting direction of the supporting ends on the third expansion positioning pin and the fourth expansion positioning pin is located on another diagonal of the circuit board to be positioned.

[0007] In some embodiments, the bracing end includes a left bracing side and a right bracing side, and the left bracing side and the right bracing side are spaced apart and disposed opposite to each other.

[0008] In some embodiments, cross-sections of the left bracing side and the right bracing side are respectively semicircular arc-shaped.

[0009] In some embodiments, the left bracing side and the right bracing side are symmetrically arranged.

[0010] In some embodiments, the minimum spacing distance between the left tensioning side and the right tensioning side is set to 2-5 mm.

[0011] In some embodiments, the first expansion positioning pin, the second expansion positioning pin, the third expansion positioning pin and the fourth expansion positioning pin are respectively made of wear-resistant metal material.

[0012] Beneficial effects of the utility model:

[0013] The circuit board drilling positioning structure provided by the utility model comprises an X-shaped adjustment bracket, a propping mechanism and a first expansion positioning pin, a second expansion positioning pin, a third expansion positioning pin and a fourth expansion positioning pin connected to the four ends of the X-shaped adjustment bracket, the first expansion positioning pin, the second expansion positioning pin, the third expansion positioning pin and the fourth expansion positioning pin are respectively provided with a fixed end and a pulling end, the propping mechanism is arranged near the bottom end of the circuit board to be positioned, and is used to pull and support the pulling end. The utility model has a simple structure and a reasonable design. By arranging the X-shaped adjustment bracket, the positions of the four expansion positioning pins can be adjusted based on the size of the circuit board to be positioned, and the applicability is wide. At the same time, since the expansion positioning pins are arranged, the expansion positioning pins are in a contracted state during the process of inserting the circuit board, which is convenient for inserting the circuit board. After inserting, the expansion positioning pins arranged at the four corners of the circuit board can be pulled and supported from all sides through the pulling mechanism at the bottom, so that the misalignment deviation of the circuit board is evenly distributed and aligned, so that the drilling hole position is more accurate, thereby achieving a better positioning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the first / second / third / fourth expansion positioning pin in some embodiments of the utility model;

[0016] Figure 2 It is a schematic diagram of positioning of the support end and the positioning hole of the circuit board in some embodiments of the utility model;

[0017] Figure 3 It is a schematic diagram of the positioning state of the expansion positioning pin of the utility model;

[0018] Figure 4 It is a schematic diagram of the positioning force distribution state of the expansion positioning pin of the utility model.

[0019] The reference numerals are:

[0020] The first expansion positioning pin 1 , the second expansion positioning pin 2 , the third expansion positioning pin 3 , the fourth expansion positioning pin 4 , the fixed end 5 , the bracing end 6 , the left bracing side 61 , the right bracing side 62 , and the X-shaped adjustment bracket 7 . DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] See also Figure 1-Figure 4 The circuit board drilling positioning structure described in this embodiment includes an X-shaped adjustment bracket 7, a propping mechanism (not shown in the drawings), and a first expansion positioning pin 1, a second expansion positioning pin 2, a third expansion positioning pin 3 and a fourth expansion positioning pin 4 connected to the four ends of the X-shaped adjustment bracket 7. The first expansion positioning pin 1, the second expansion positioning pin 2, the third expansion positioning pin 3 and the fourth expansion positioning pin 4 are respectively provided with a fixed end 5 and a supporting end 6. The propping mechanism is arranged near the bottom end of the circuit board to be positioned, and is used to support the supporting end.

[0028] The present embodiment has a simple structure and a reasonable design. By respectively setting expansion positioning pins at the four corners of the circuit board to be positioned, during the positioning process, by setting an X-shaped adjustment bracket 7, the positions of the four expansion positioning pins can be adjusted based on the size of the circuit board to be positioned, and it has wide applicability. At the same time, since expansion positioning pins are set, the fixed end 5 of the expansion positioning pin can be fixed in the bakelite board first, and then the circuit board to be positioned can be inserted in turn. During the process of inserting the circuit board, the expansion positioning pin is in a contracted state to facilitate the insertion of the circuit board. After the insertion, the expansion positioning pins set at the four corners of the circuit board can be pulled and supported from all sides through the tensioning mechanism at the bottom to evenly divide the deviations between the panels, so that the misalignment deviations of the circuit board are evenly divided and aligned, and the drilling positions are more accurate, thereby achieving better positioning effects.

[0029] In some embodiments, the supporting direction of the supporting end 6 on the first expansion positioning pin 1 and the second expansion positioning pin 2 is located on one of the diagonals of the circuit board to be positioned, and the supporting direction of the supporting end 6 on the third expansion positioning pin 3 and the fourth expansion positioning pin 4 is located on another diagonal of the circuit board to be positioned.

[0030] In this embodiment, the tensioning direction of the expansion positioning pins located at the four corners of the circuit board is specifically shown to be located on the diagonal line of the circuit board to be positioned, so that the tensioning force is similarly distributed in the X path (see Figure 4 With this arrangement, when the brace is positioned, it is positioned from all sides, so that the deviation of the positioning hole can be divided in half from the center, that is, the misalignment deviation between the plates is evenly divided, so that the upper and lower plates are better aligned and more accurate positioning is achieved.

[0031] In some embodiments, the bracing end 6 includes a left bracing side 61 and a right bracing side 62 , and the left bracing side 61 and the right bracing side 62 are spaced apart and disposed facing each other.

[0032] Specifically, the cross sections of the left bracing side 61 and the right bracing side 62 are semicircular arc shapes respectively.

[0033] Specifically, the left bracing side 61 and the right bracing side 62 are symmetrically arranged.

[0034] Specifically, the minimum spacing distance between the left bracing side 61 and the right bracing side 62 is set to 2-5 mm.

[0035] In this embodiment, the structural setting of the left tensioning side 61 and the right tensioning side 62 is specifically shown. By setting them in a semicircular arc shape, it is convenient to match the shape of the positioning hole. During the tensioning process, more contact is made with the inner wall of the positioning hole, which increases the force-bearing area and improves the tensioning positioning effect. The setting of the minimum distance between the two is mainly to facilitate the regulation of the contraction and expansion range of each expansion positioning pin to better meet the positioning requirements.

[0036] In some embodiments, the first expansion positioning pin 1 , the second expansion positioning pin 2 , the third expansion positioning pin 3 , and the fourth expansion positioning pin 4 are respectively made of wear-resistant metal materials.

[0037] In this embodiment, by using an expansion positioning pin made of a wear-resistant metal material, the wear resistance can be improved to facilitate multiple uses. Specifically, wear-resistant materials such as stainless steel and titanium can be used.

[0038] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A circuit board drilling positioning structure, characterized in that: It includes an X-shaped adjustment bracket, a propping mechanism, and a first expansion positioning pin, a second expansion positioning pin, a third expansion positioning pin, and a fourth expansion positioning pin connected to the four ends of the X-shaped adjustment bracket. The first expansion positioning pin, the second expansion positioning pin, the third expansion positioning pin, and the fourth expansion positioning pin are respectively provided with a fixed end and a supporting end. The propping mechanism is arranged near the bottom end of the circuit board to be positioned, and is used for supporting the supporting end.

2. The circuit board drilling positioning structure according to claim 1, characterized in that: The supporting directions of the supporting ends on the first expansion positioning pin and the second expansion positioning pin are located on one diagonal line of the circuit board to be positioned, and the supporting directions of the supporting ends on the third expansion positioning pin and the fourth expansion positioning pin are located on another diagonal line of the circuit board to be positioned.

3. The circuit board drilling positioning structure according to claim 1, characterized in that: The bracing end comprises a left bracing side and a right bracing side, and the left bracing side and the right bracing side are spaced apart and arranged facing each other.

4. The circuit board drilling positioning structure according to claim 3, characterized in that: The cross sections of the left bracing side and the right bracing side are respectively semicircular arc-shaped.

5. The circuit board drilling positioning structure according to claim 3, characterized in that: The left bracing side and the right bracing side are symmetrically arranged.

6. The circuit board drilling positioning structure according to claim 4, characterized in that: The minimum spacing distance between the left brace side and the right brace side is set to 2-5 mm.

7. The circuit board drilling positioning structure according to claim 1, characterized in that: The first expansion positioning pin, the second expansion positioning pin, the third expansion positioning pin and the fourth expansion positioning pin are respectively made of wear-resistant metal materials.

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