Positioning jig for PCB manufacturing process

Abstract

The utility model discloses a positioning jig for a PCB (printed circuit board) manufacturing process, which comprises a positioning plate, a plurality of positioning columns are arranged on the positioning plate, the outer contour of each positioning column is of a step structure, each positioning column comprises a supporting part and a positioning part, the outer diameter of each supporting part is larger, the upper end face of each supporting part is coplanar, the upper end portion of each supporting part is provided with a chip pocket, and the chip pocket is provided with a plurality of positioning holes. A positioning part is arranged on the bottom wall of the chip containing groove, and the positioning part, the chip containing groove and the supporting part are coaxially arranged. According to the utility model, the chip accommodating groove is arranged on the end surface for supporting the PCB on the positioning column, so that waste liquid and waste materials in production can be conveniently stored and collected, the waste liquid and the waste materials are prevented from being condensed and accumulated on the end surface, matched with the positioning column, of the PCB and influencing the stability of the PCB, the PCB can be always completely and flatly attached to the positioning column in the production process, and the production efficiency is improved. And the PCB is prevented from being deformed or fractured in the subsequent locking and fixing process.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB production, in particular to a positioning fixture used in a PCB board making process. Background Art

[0002] PCB is widely used, ranging from daily headphones to military and aerospace equipment. In the current PCB production, positioning posts are usually used to pass through the positioning holes and / or functional holes on the board to support and position the board, and the outer layer is processed through lamination, pickling, brushing, exposure, etching, solder mask, printing and other processes. During the production process, more or less waste dust will be generated. During the pickling or etching process, some waste will be washed to the periphery of the BOSS column. Some waste will be irregularly deposited between the board surface and the positioning posts, so that the board cannot be completely attached to the shoulder of the BOSS column and tilts. This directly leads to the PCB warping, deformation or even fracture in the subsequent locking and fixing process. Moreover, when the PCB is a small board and a high-precision board, due to its very compact wiring layout, the deformation or fracture of the board may directly lead to a circuit break or short circuit. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a positioning fixture for a PCB board making process, which is convenient for storing and collecting waste liquid and waste materials in production, avoiding their condensation and accumulation on the end surface where the PCB and the positioning column match and affecting the stability of the PCB, ensuring that the PCB can always be completely flat on the positioning column during the production process, and avoiding deformation or breakage of the PCB in the subsequent locking and fixing process.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is as follows:

[0005] A positioning jig for a PCB board making process comprises a positioning plate, on which a plurality of positioning posts are arranged which can be matched one by one with positioning holes or conductive holes on the PCB; the outer contour of each of the positioning posts is a stepped structure, comprising a supporting portion and a positioning portion, the supporting portion has a larger outer diameter, and the upper end faces of each of the supporting portions are coplanar, the upper end of each of the supporting portions is provided with a chip groove, the bottom wall of the chip groove is provided with the positioning portion, the positioning portion, the chip groove and the supporting portion are coaxially arranged, each of the positioning portions can match and pass through the positioning hole or conductive hole on the PCB, and the axial length thereof is greater than or equal to the thickness of the PCB.

[0006] As a further elaboration of the above technical solution:

[0007] In the above technical solution, the side wall of the chip groove is an arc-shaped structure.

[0008] In the above technical solution, the upper end of the positioning plate is also provided with a plurality of upper support members and upper guide hole grooves, the upper end surface of each of the upper support members is coplanar with the support portion, the opening ends of the plurality of upper guide hole grooves are arranged on the lower end of the positioning plate, and the lower end of the positioning plate is provided with a plurality of lower support members, and the lower end surfaces of the plurality of lower support members are coplanar.

[0009] The above technical solution also includes a base arranged in parallel below the positioning plate and connected to each of the lower support members, wherein a plurality of lower guide grooves are arranged on the base, and the opening ends of the plurality of lower guide grooves extend to the side walls of the base.

[0010] In the above technical solution, the base is detachably fixed on a plurality of the lower support members.

[0011] Compared with the prior art, the beneficial effect of the utility model lies in: by arranging a chip groove on the end face of the positioning column for supporting the PCB, it is convenient to store and collect waste liquid and waste materials in production, avoid condensation and accumulation on the end face of the PCB matching the positioning column and affecting the stability of the PCB, ensure that the PCB can always be completely flat on the positioning column during the production process, and avoid deformation or breakage of the PCB in the subsequent locking and fixing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of this embodiment;

[0013] Figure 2 yes Figure 1 A schematic diagram of the structure of part A in the middle;

[0014] Figure 3 2 is a schematic diagram of the side structure of this embodiment.

[0015] In the figure: 10, positioning plate; 11, positioning column; 12, upper support member; 13, upper guide hole groove; 14, lower support member; 20, base; 21, lower guide groove; 1, support part; 2, positioning part; 3, chip groove. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0017] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and cannot be understood as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "several" and "multiple" mean two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, or it can be a communication between the 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. In this application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features being in direct contact, or it can include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0018] like Figure 1-3As shown, a positioning fixture for PCB board making process includes a positioning plate 10, on which are provided a plurality of positioning posts 11 which can be matched one by one with positioning holes or conductive holes on the PCB; the outer contour of each positioning post 11 is a stepped structure, including a supporting portion 1 and a positioning portion 2, the supporting portion 1 has a larger outer diameter, and the upper end surface of each supporting portion 1 is coplanar, the upper end portion of each supporting portion 1 is provided with a chip groove 3, the bottom wall of the chip groove 3 is provided with a positioning portion 2, the positioning portion 2, the chip groove 3 and the supporting portion 1 are coaxially arranged, each positioning portion 2 can match and pass through the positioning hole or conductive hole on the PCB, and the axial length thereof is greater than or equal to the thickness of the PCB.

[0019] When in use, the PCB is placed on the positioning column 11, and the positioning part 2 on it is inserted into the positioning hole or conductive hole on the PCB. At this time, the lower end surface of the PCB is against the upper end surface of the support part 1; when the waste material washed off by pickling or etching during production is washed to the root of the positioning part 2, it will fall into the chip groove 3, and will not accumulate on the lower end surface of the PCB board to affect its plane contact with the support part 1, thereby ensuring that the PCB is always in a stable and horizontal state.

[0020] The utility model provides a chip groove 3 on the end surface of the positioning column 11 for supporting the PCB, so as to facilitate the storage and collection of waste liquid and waste materials in production, avoid condensation and accumulation on the end surface of the PCB and the positioning column 11 that match and affect the stability of the PCB, ensure that the PCB can always be completely flat on the positioning column 11 during the production process, and avoid deformation or breakage of the PCB in the subsequent locking and fixing process.

[0021] Specifically, the side wall of the chip groove 3 is an arc-shaped structure.

[0022] It can be understood that the inner side wall of the arc-shaped structure is convenient for cutting and cleaning.

[0023] Furthermore, the upper end of the positioning plate 10 is also provided with a plurality of upper support members 12 and upper guide hole grooves 13, the upper end surface of each upper support member 12 is coplanar with the support portion 1, the opening ends of the plurality of upper guide hole grooves 13 are arranged on the lower end of the positioning plate 10, and the lower end of the positioning plate 10 is provided with a plurality of lower support members 14, and the lower end surfaces of the plurality of lower support members 14 are coplanar.

[0024] Furthermore, it also includes a base 20 arranged in parallel below the positioning plate 10 and connected to each lower support member 14, and a plurality of lower guide grooves 21 are provided on the base 20, and the opening ends of the plurality of lower guide grooves 21 extend to the side walls of the base 20; the base 20 is detachably fixed on the plurality of lower support members 14.

[0025] It can be understood that the upper support member 12 can cooperate with the support part 1 of the positioning column 11 to stably support the PCB, the upper guide hole groove 13 can collect waste liquid and waste from pickling or etching and guide it to the outside of the positioning plate 10, and the lower support member 14 can set the positioning plate 10 on the support base 20 so as to guide the waste liquid to the set flow channel or storage box, which will not pollute the environment and is convenient to use.

[0026] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A positioning fixture for PCB board manufacturing process, comprising a positioning plate, on which are provided a plurality of positioning posts which can be matched one by one with positioning holes or conductive holes on the PCB; characterized in that: The outer contour of each positioning column is a stepped structure, including a supporting portion and a positioning portion. The supporting portion has a larger outer diameter, and the upper end faces of each supporting portion are coplanar. The upper end of each supporting portion is provided with a chip groove, and the bottom wall of the chip groove is provided with the positioning portion. The positioning portion, the chip groove and the supporting portion are coaxially arranged. Each positioning portion can match the positioning hole or conductive hole on the PCB, and its axial length is greater than or equal to the thickness of the PCB.

2. A positioning fixture for PCB board manufacturing process according to claim 1, characterized in that: The side wall of the chip groove is an arc-shaped structure.

3. A positioning fixture for PCB board manufacturing process according to any one of claims 1-2, characterized in that: The upper end of the positioning plate is also provided with a plurality of upper support members and upper guide hole grooves, the upper end surface of each of the upper support members is coplanar with the support portion, the opening ends of the plurality of upper guide hole grooves are arranged on the lower end of the positioning plate, and the lower end of the positioning plate is provided with a plurality of lower support members, and the lower end surfaces of the plurality of lower support members are coplanar.

4. A positioning fixture for PCB board manufacturing process according to claim 3, characterized in that: It also includes a base which is arranged in parallel below the positioning plate and connected to each of the lower support members, wherein a plurality of lower guide grooves are arranged on the base, and the opening ends of the plurality of lower guide grooves extend to the side walls of the base.

5. A positioning fixture for PCB board manufacturing process according to claim 4, characterized in that: The base is detachably fixed on a plurality of the lower support members.

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