PCB jig structure

Abstract

The utility model discloses a PCB jig structure, which comprises a base, a top seat and a hold-down piece, the base is provided with a station for placing and positioning a PCB, the top seat is detachably arranged on the base, the hold-down piece is arranged on the top seat and corresponds to the station, the hold-down piece is provided with an elastic contact part facing the station, and the elastic contact part is arranged on the top seat and corresponds to the station. The elastic contact part is movably arranged in the pressing and holding piece and is convexly exposed out of the pressing and holding piece; thus, through the design of all the components, the two plates are pressed and positioned through the elastic contact parts of the pressing pieces, so that the scaling powder between the two plates is pressed in the heating and water melting process, generated bubbles and water are discharged outwards, the phenomenon that signal transmission of subsequent PCBs is poor is reduced, the production yield of the PCBs is increased, and the product quality is improved. The use stability of the product is ensured, so that the use requirements of users are met, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the field of fixture technology, in particular to a PCB board fixture structure. Background Art

[0002] With the development of technology, electronic products have gradually become one of the indispensable machines in daily work and life. At the same time, PCB boards are one of the indispensable components in electronic products. PCB boards, also known as printed circuit boards in Chinese, are important electronic components. They support electronic components and provide electrical connections for electronic components. Because they are produced using electronic printing technology, they are called "printed" circuit boards.

[0003] During the production process of PCB boards, a first plate made of FR4 material and a second plate made of ceramic material need to be welded together. The first and second plates need to be coated with solder paste and flux, and then heated to weld the first and second plates together. However, during heating and welding, the flux will dissolve into some water, causing bubbles to form between the first and second plates, making the PCB boards prone to defects, and further causing poor signal transmission during subsequent use of the product, reducing the product's stability, failing to meet user needs, and having a small scope of application.

[0004] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies in the prior art, and its main purpose is to provide a PCB board fixture structure, which utilizes the elastic contact portion of the holding piece to press and position two plates, so that the flux between the two plates is pressurized during the process of heating the melt water and the generated bubbles and water are discharged outward, thereby reducing the phenomenon of poor signal transmission on subsequent PCB boards, improving the production yield of PCB boards, ensuring the stability of product use, and having a wide range of applications.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A PCB jig structure includes a base, a top seat and a holding member, wherein the base is provided with a work station for placing and positioning the PCB board, the top seat is detachably provided on the base, the holding member is provided on the top seat and corresponds to the work station, the holding member has an elastic contact portion arranged toward the work station, the elastic contact portion is movably provided inside the holding member and protrudes outside the holding member.

[0008] As a preferred embodiment, the holding member includes a connecting tube, a contact pin and an elastic return member. One end of the connecting tube is fixed to the lower end of the top seat. The connecting tube has an active cavity with an open lower end. The elastic return member and the contact pin are both arranged in the active cavity. The two ends of the elastic return member act on the active cavity and the contact pin respectively. The lower end of the contact pin is exposed outside the connecting tube, and the elastic contact portion is arranged at the lower end of the contact pin.

[0009] As a preferred solution, the elastic return member is a spring.

[0010] As a preferred solution, the top seat and the base are assembled and positioned by magnetic attraction.

[0011] As a preferred solution, a first magnetic component is provided on the top seat, and a second magnetic component that is magnetically attracted to the first magnetic component is provided on the base.

[0012] As a preferred solution, one of the first magnetic attraction component and the second magnetic attraction component is a magnet and the other is an iron sheet; or, the first magnetic attraction component and the second magnetic attraction component are magnets of opposite polarities.

[0013] As a preferred solution, one of the top seat and the base is provided with a positioning hole, and the other is provided with a positioning portion. When the top seat is assembled to the base, the positioning portion is adapted to be positioned on the positioning hole.

[0014] As a preferred solution, the positioning portion is provided on the top seat, and the positioning hole is provided on the base.

[0015] As a preferred solution, the lower end of the top seat is provided with four bosses facing the base, and the four bosses are respectively provided at the four corners of the lower end of the top seat. There are three positioning parts, and the three positioning parts are respectively provided on three of the bosses. Correspondingly, there are three positioning holes, and the three positioning holes correspond to the three positioning parts provided on the upper end of the base.

[0016] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it is mainly through the design of various components that the elastic contact portion of the holding member is used to press and position the two plates, so that the flux between the two plates is compressed during the heating and melting process and the generated bubbles and water are discharged outward, thereby reducing the phenomenon of poor signal transmission on subsequent PCB boards. The structural design is ingenious and reasonable, improves the production yield of PCB boards, ensures the stability of the product, thereby meeting the use needs of users and having a wide range of applications.

[0017] In addition, the setting of the first magnetic attraction part and the second magnetic attraction part improves the assembly firmness between the top seat and the base, and ensures the contact stability between the elastic contact part of the holding part and the workpiece. At the same time, the setting of three positioning holes and three positioning parts is conducive to the fool-proof assembly between the top seat and the base, ensuring the accurate assembly positioning of the top seat on the base and good usability.

[0018] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a top view of an embodiment of the present utility model;

[0020] Figure 2 It is a side view of the base, top seat, holding member and workpiece of an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the application of the base, top seat, holding member and workpiece of an embodiment of the present utility model.

[0022] Figure 4 It is a cross-sectional view of a pressing member according to an embodiment of the present invention.

[0023] Description of the accompanying drawings:

[0024] 10. Base 11. Workstation

[0025] 12. Positioning hole 20, top seat

[0026] 21. Positioning portion 22. Boss

[0027] 30. Pressing piece 31. Connecting tube

[0028] 311, active cavity 32, stylus

[0029] 321, elastic contact portion 33, elastic reset member

[0030] 40. Workpiece. DETAILED DESCRIPTION

[0031] Please refer to Figures 1 to 4 As shown, it shows the specific structure of an embodiment of the present utility model.

[0032] A PCB fixture structure includes a base 10, a top seat 20, and a holding member 30. The base 10 is provided with a workstation 11 for placing and positioning a PCB board. The top seat 20 is detachably mounted on the base 10. The holding member 30 is mounted on the top seat 20 and corresponds to the workstation 11. The holding member 30 has an elastic contact portion 321 disposed toward the workstation. The elastic contact portion 321 is movably disposed within the holding member 30 and protrudes from the holding member 30.

[0033] The cam 33 is provided with a screw thread 322 and a screw thread 3334 for locking the cam 33 in the locking cam 33. The cam 33 is secured on both sides of the cam 33 and the locking cam 33 is engaged with the locking cam 332 in a manner that is suitable for locking the cam 33 in the locking cam 33.

[0034] In addition, the top seat 20 and the base 10 are assembled and positioned by magnetic attraction. A first magnetic member (not shown in the figure) is provided on the top seat 20, and a second magnetic member (not shown in the figure) that is magnetically attracted to the first magnetic member is provided on the base 10. Specifically, one of the first magnetic member and the second magnetic member is a magnet and the other is an iron sheet; or, the first magnetic member and the second magnetic member are magnets of opposite poles. In this way, the assembly firmness between the top seat and the base is improved, and the contact stability between the elastic contact portion of the holding member and the workpiece is ensured.

[0035] In addition, one of the top seat 20 and the base 10 is provided with a positioning hole 12, and the other is provided with a positioning portion 21. When the top seat 20 is assembled on the base 10, the positioning portion 21 is adapted to be positioned on the positioning hole 12. Specifically, the positioning portion 21 is provided on the top seat 20, and the positioning hole 12 is provided on the base 10. The lower end of the top seat 20 is provided with four bosses 22 facing the base. The four bosses 22 are respectively provided at the four corners of the lower end of the top seat 20. There are three positioning portions 21, and the three positioning portions 21 are respectively provided on three of the bosses 22. Correspondingly, there are three positioning holes 12, and the three positioning holes 12 correspond to the three positioning portions 21 provided on the upper end of the base 10. Preferably, the first magnetic attraction part is provided inside the boss 22, which is conducive to the fool-proof assembly between the top seat and the base, ensuring that the assembly positioning of the top seat on the base is accurate and the usability is good.

[0036] The key design feature of the utility model lies in that, through the design of various components, the elastic contact portion of the holding member is used to hold the two plates in position, so that the solder flux between the two plates is compressed during the heating and melting process, and the generated bubbles and water are discharged outward, thereby reducing the phenomenon of poor signal transmission on subsequent PCB boards. The structural design is ingenious and reasonable, which improves the production yield of PCB boards and ensures the stability of the product, thereby meeting the needs of users and having a wide range of applications.

[0037] In addition, the setting of the first magnetic attraction part and the second magnetic attraction part improves the assembly firmness between the top seat and the base, and ensures the contact stability between the elastic contact part of the holding part and the workpiece. At the same time, the setting of three positioning holes and three positioning parts is conducive to the fool-proof assembly between the top seat and the base, ensuring the accurate assembly positioning of the top seat on the base and good usability.

[0038] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor 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 PCB fixture structure, characterized by: It includes a base, a top seat and a holding piece, wherein the base is provided with a work station for placing and positioning the PCB board, the top seat is detachably provided on the base, the holding piece is provided on the top seat and corresponds to the work station, the holding piece has an elastic contact portion arranged toward the work station, the elastic contact portion is movably provided inside the holding piece and protrudes outside the holding piece.

2. A PCB fixture structure according to claim 1, characterized in that: The holding member includes a connecting tube, a contact pin and an elastic return member. One end of the connecting tube is fixed to the lower end of the top seat. The connecting tube has an active cavity with an open lower end. The elastic return member and the contact pin are both arranged in the active cavity. The two ends of the elastic return member act on the active cavity and the contact pin respectively. The lower end of the contact pin is exposed outside the connecting tube, and the elastic contact portion is arranged at the lower end of the contact pin.

3. A PCB fixture structure according to claim 2, characterized in that: The elastic reset member is a spring.

4. The PCB fixture structure according to claim 1, wherein: The top seat and the base are assembled and positioned by magnetic attraction.

5. The PCB fixture structure according to claim 4, characterized in that: The top seat is provided with a first magnetic attraction component, and the base is provided with a second magnetic attraction component that is magnetically attracted to the first magnetic attraction component.

6. The PCB fixture structure according to claim 5, characterized in that: One of the first magnetic attraction component and the second magnetic attraction component is a magnet and the other is an iron sheet; or the first magnetic attraction component and the second magnetic attraction component are magnets of opposite polarities.

7. The PCB fixture structure according to claim 1, characterized in that: One of the top seat and the base is provided with a positioning hole, and the other is provided with a positioning portion. When the top seat is assembled on the base, the positioning portion is adapted to be positioned on the positioning hole.

8. The PCB fixture structure according to claim 7, characterized in that: The positioning portion is arranged on the top seat, and the positioning hole is arranged on the base.

9. The PCB fixture structure according to claim 8, characterized in that: The lower end of the top seat is provided with four bosses facing the base, and the four bosses are respectively provided at the four corners of the lower end of the top seat. There are three positioning parts, and the three positioning parts are respectively provided on three of the bosses. Correspondingly, there are three positioning holes, and the three positioning holes correspond to the three positioning parts provided on the upper end of the base.

Images