A universal jig for selective soldering of PCBA

Abstract

The utility model discloses a kind of general fixture for PCBA selective welding, comprising: gluing fixture, protective gasket and welding tray, multiple groups of placement grooves for placing PCB board are set up on gluing fixture, limiting groove corresponding to the placement groove is set up on welding tray, the clearance for PCB board main body is provided on protective gasket, the periphery of clearance on protective gasket is provided with several avoidance hole groups for the lead through on PCB board, limiting groove is provided with the shielding plate for protecting SMT element on PCB board, the edge of the frame of shielding plate and the edge of the limiting groove form first hollow position, second hollow position and third hollow position, at least two groups of positioning holes are provided on the four periphery of the gluing fixture, guiding column is provided on welding tray, which is matched with positioning hole and is installed, the utility model realizes two-in-one when jig welding, reduces the frequent taking and placing board action of personnel, improves operation efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of welding fixtures, and in particular to a general-purpose fixture for selective welding of PCBAs. Background Technology

[0002] Current manufacturing processes use traditional methods. When using welding fixtures, the bottom is sealed, only exposing the pins to be welded. When using adhesive application fixtures, the bottom needs to be completely hollowed out to avoid obscuring the components. The two types of fixtures are not compatible and require manual operation to pick up and place products onto the corresponding fixtures to meet the equipment operation requirements. This process requires a fixed person to switch product picking and placing actions at any time, which wastes human resources and increases production costs. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a universal fixture for selective soldering of PCBAs, combining two different functions into one, achieving universality during soldering, reducing the need for frequent board handling, improving work efficiency, and bringing great convenience to production and use.

[0004] To solve the above-mentioned technical problems, the present invention adopts a general-purpose fixture for selective soldering of PCBA, comprising, from top to bottom, an adhesive application fixture, a protective gasket, and a soldering tray. The adhesive application fixture has multiple sets of placement slots for placing PCB boards. The soldering tray has limiting slots corresponding to the placement slots. The protective gasket has clearances for the PCB board body to pass through. The protective gasket has a number of clearance holes around the clearances for pins on the PCB board to pass through. The limiting slots contain shielding plates for protecting SMT components on the PCB board. The edge of the shielding plate and the edge of the limiting slots form a first cutout, a second cutout, and a third cutout. The adhesive application fixture has at least two sets of positioning holes around its four sides. The soldering tray has guide posts that mate with the positioning holes.

[0005] In a preferred embodiment of the present invention, the first cutout and the second cutout are respectively disposed on both sides of the baffle plate, and the size of the third cutout is larger than the size of the first cutout and the second cutout.

[0006] In a preferred embodiment of this utility model, the first cutout, the second cutout, and the third cutout are matched and correspond to the pin positions on the PCB board.

[0007] In a preferred embodiment of the present invention, the clearance hole group includes a first circular clearance hole and a second square clearance hole disposed around the periphery of the protective pad.

[0008] In a preferred embodiment of the present invention, the size of the first circular clearance hole is smaller than the size of the second square clearance hole.

[0009] In a preferred embodiment of the present invention, the baffle plate is integrally formed within the limiting groove.

[0010] In a preferred embodiment of this invention, the protective pad is a titanium sheet.

[0011] In a preferred embodiment of this utility model, the welding tray is further provided with a material picking cutout.

[0012] In a preferred embodiment of the present invention, a limiting post is provided on the adhesive application fixture at the edge of the placement groove.

[0013] The beneficial effects of this utility model are: the glue application fixture and the welding tray are positioned and guided by at least three positioning holes and guide posts, which can make the glue application fixture and the PCB board smoothly put into the welding tray, realize the combination of the fixture and the welding, and ultimately achieve universality, reduce the frequent board picking and putting actions of personnel, and improve work efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is an exploded view of the general-purpose fixture for selective soldering of PCBA according to this utility model. Figure 2 This is an enlarged view of a portion of the adhesive-coating fixture in this utility model; Figure 3 This is an enlarged view of a partial structure of the welding tray in this utility model. Detailed Implementation

[0015] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] Please see Figure 1-3This utility model discloses a universal fixture for selective soldering of PCBA, comprising: an adhesive application fixture 1, a protective pad 2, and a soldering tray 3 arranged sequentially from top to bottom. The adhesive application fixture has multiple sets of placement slots 4 for placing PCB boards 16, and the soldering tray has limiting slots 5 corresponding to the placement slots. The protective pad has clearances for the PCB board body to pass through, and the protective pad has a plurality of clearance holes around the clearances for the pins on the PCB board to pass through. The protective pad is made of titanium, and the clearance hole group includes a first circular clearance hole 6 and a second square clearance hole 7 disposed around the protective pad. The size of the first circular clearance hole is smaller than the size of the second square clearance hole, and the first circular clearance hole or the second square clearance hole can be selectively used according to the size of the PCB board.

[0017] Specifically, a shield 8 is provided in the limiting groove to protect the SMT components on the PCB board. The edge of the shield and the edge of the limiting groove form a first cutout 9, a second cutout 10, and a third cutout 11. The shield is integrally formed in the limiting groove. The first and second cutouts are respectively located on both sides of the shield. The size of the third cutout is larger than the sizes of the first and second cutouts. The first, second, and third cutouts match and correspond to the pin positions on the PCB board. The shield protects the SMT components on the PCB board. The pins to be soldered extend out of the soldering tray from the first, second, and third cutouts to facilitate soldering operations.

[0018] Specifically, the adhesive application fixture has at least two sets of positioning holes 12 around its four sides, and the welding tray has guide posts 13 that cooperate with the positioning holes. The two work together to allow the adhesive application fixture and the PCB board to be smoothly installed into the welding tray, so that the fixture and the PCB board can be integrated into one during welding, reducing personnel contact with the product, thereby reducing the risk of collision and improving product quality.

[0019] Specifically, the adhesive application fixture has a limit post 14 located at the edge of the placement groove to facilitate installation with the through holes on the PCB board. The soldering tray also has a material picking cutout 15 as a handle for easy picking up the entire general fixture.

[0020] The beneficial effects of this utility model are: the gluing fixture and the welding tray are positioned and guided by at least three positioning holes and guide posts, which can smoothly load the gluing fixture and the PCB board into the welding tray, realize the integration of the fixture and the welding tray, and ultimately achieve universality. This reduces the frequent handling of boards by personnel, improves work efficiency, reduces personnel contact with products, and thus reduces the risk of collisions and improves the quality of the PCB board.

[0021] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A universal fixture for selective soldering of PCBAs, characterized in that, The device includes, from top to bottom, a gluing fixture, a protective pad, and a soldering tray. The gluing fixture has multiple sets of placement slots for placing PCB boards. The soldering tray has limiting slots that correspond one-to-one with the placement slots. The protective pad has clearances for the PCB board body to pass through. The protective pad has several clearance holes around the clearances for pins on the PCB board to pass through. The limiting slots contain shielding plates for protecting SMT components on the PCB board. The edge of the shielding plate and the edge of the limiting slots form a first cutout, a second cutout, and a third cutout. The gluing fixture has at least two sets of positioning holes around its four sides. The soldering tray has guide posts that mate with the positioning holes.

2. A universal fixture for selective soldering of PCBA according to claim 1, characterized in that, The first and second cutouts are respectively located on both sides of the baffle plate.

3. A universal fixture for selective soldering of PCBA according to claim 2, characterized in that, The size of the third cutout is larger than the size of the first cutout and the second cutout.

4. A universal fixture for selective soldering of PCBA according to claim 1, characterized in that, The first, second, and third cutouts match and correspond to the pin positions on the PCB board.

5. A universal fixture for selective soldering of PCBA according to claim 1, characterized in that, The clearance hole group includes a first circular clearance hole and a second square clearance hole disposed around the periphery of the protective pad.

6. A universal fixture for selective soldering of PCBA according to claim 5, characterized in that, The size of the first circular clearance hole is smaller than the size of the second square clearance hole.

7. A universal fixture for selective soldering of PCBA according to claim 1, characterized in that, The baffle plate is integrally formed within the limiting groove.

8. A universal fixture for selective soldering of PCBAs according to claim 1, characterized in that, The protective pad is a titanium sheet.

9. A universal fixture for selective soldering of PCBA according to claim 1, characterized in that, The welding tray is also provided with a material handling cutout.

10. A universal fixture for selective soldering of PCBAs according to claim 1, characterized in that, The adhesive application fixture is provided with a limiting post located at the edge of the placement groove.

Images