Bulk connecting needle welding jig

Abstract

The utility model relates to the technical field of welding jigs, in particular to a bulk connecting needle welding jig, which is characterized in that a connecting needle is vertically inserted into a bottom die, an upper cover is connected with the bottom die in a magnetic attraction manner, a PCB (printed circuit board) is clamped between the upper cover and the bottom die, the connecting needle is vertically inserted into a welding hole of the PCB, and a gland and the upper cover are respectively positioned on two different sides of the bottom die. The gland is used for pressing the connecting pin into a welding hole of the PCB; a plurality of through connecting needle positioning holes are formed in the bottom die, and the connecting needles are vertically inserted into the connecting needle positioning holes; a plurality of PCB positioning columns are arranged on the bottom die, PCB positioning holes matched with the PCB positioning columns are formed in the PCB, and the PCB positioning columns are inserted into the PCB positioning holes. Compared with the prior art, the bulk connecting needle welding jig has the advantages that batch welding can be achieved, welding efficiency can be improved, large-scale production can be achieved, and welding quality can be guaranteed.

Description

[Technical field]

[0001] The utility model relates to the technical field of welding jigs, in particular to a bulk connecting pin welding jig. [Background technology]

[0002] In the prior art, a large number of bulk connection pins are vertically soldered on a PCB board, but there is generally a lack of effective soldering jigs, resulting in low soldering efficiency and the inability to effectively ensure soldering quality. [Contents of the utility model]

[0003] In order to overcome the above problems, the utility model proposes a bulk connection pin welding fixture which can effectively solve the above problems.

[0004] The utility model provides a technical solution to solve the above technical problems: a bulk connecting pin welding jig is provided, comprising a bottom mold, an upper cover and a pressure cover, the bottom mold is vertically inserted with connecting pins, the upper cover is magnetically connected to the bottom mold, a PCB board is clamped between the upper cover and the bottom mold, the connecting pins are vertically inserted into the welding holes of the PCB board, the pressure cover and the upper cover are respectively located on different sides of the bottom mold, and the pressure cover is used to press the connecting pins into the welding holes of the PCB board; a plurality of through connecting pin positioning holes are provided on the bottom mold, and the connecting pins are vertically inserted into the connecting pin positioning holes; a plurality of PCB positioning posts are provided on the bottom mold, and PCB positioning holes matching the PCB positioning posts are provided on the PCB board, and the PCB positioning posts are inserted into the PCB positioning holes.

[0005] Preferably, matching magnetic suction components are provided at the four corners of the upper cover and the bottom mold.

[0006] Preferably, a plurality of upper cover positioning posts are arranged on the bottom mold, and an upper cover positioning hole matching with the upper cover positioning posts is arranged on the upper cover, and the upper cover positioning posts are inserted into the upper cover positioning holes.

[0007] Preferably, a plurality of first air-avoiding grooves are provided on the bottom mold for avoiding components on the PCB board.

[0008] Preferably, the upper cover is provided with a clearance hole matching the PCB positioning column, for avoiding the PCB positioning column.

[0009] Preferably, the upper cover is provided with a plurality of second air-avoiding grooves for avoiding components on the PCB board.

[0010] Preferably, at least two extraction grooves are provided on the side of the upper cover.

[0011] Preferably, the gland is made of acrylic material.

[0012] Preferably, a pressing guide hole is provided on the pressing cover, and a pressing guide column matching the pressing guide hole is provided on the bottom mold, and the pressing guide column is inserted into the pressing guide hole.

[0013] Preferably, the surface of the gland is a horizontal plane, and the side of the bottom mold opposite to the gland is a horizontal plane.

[0014] Compared with the prior art, the bulk connecting pin welding fixture of the utility model can realize batch welding of bulk connecting pins, which is beneficial to improving welding efficiency and realizing large-scale production. It can realize vertical welding of connecting pins and pads, facilitates subsequent module assembly, and ensures welding quality.

Brief Description of the Drawings

[0015] Figure 1 This is a bottom mold structure diagram of the bulk connection pin welding fixture of the utility model;

[0016] Figure 2 This is a structural diagram of the upper cover of the bulk connection pin welding fixture of the utility model;

[0017] Figure 3 This is a structural diagram of the gland of the bulk connecting pin welding jig of the utility model. [Specific implementation method]

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are limited to relative positions on the specified view rather than absolute positions.

[0020] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0021] See also Figures 1 to 3The bulk connecting pin welding fixture of the utility model comprises a bottom mold 10, an upper cover 20 and a pressure cover 30. The bottom mold 10 is vertically inserted with connecting pins. The upper cover 20 is magnetically connected to the bottom mold 10. A PCB board is clamped between the upper cover 20 and the bottom mold 10. The connecting pins are vertically inserted into the welding holes of the PCB board. The pressure cover 30 and the upper cover 20 are respectively located on different sides of the bottom mold 10. The pressure cover 30 is used to press the connecting pins into the welding holes of the PCB board, so that the vertical connection is more stable, which is conducive to improving the welding quality.

[0022] The bottom mold 10 is provided with a plurality of through connection needle positioning holes 11 , and the connection needles are vertically inserted into the connection needle positioning holes 11 .

[0023] The bottom mold 10 is provided with a plurality of PCB positioning posts 12, and the PCB board is provided with PCB positioning holes matching the PCB positioning posts 12. The PCB positioning posts 12 are inserted into the PCB positioning holes to facilitate the placement of the PCB board. After the PCB board is placed, the connecting pins are initially vertically inserted into the welding holes of the PCB board.

[0024] The bottom mold 10 is provided with a plurality of upper cover positioning posts 13 , and the upper cover 20 is provided with upper cover positioning holes 22 matching the upper cover positioning posts 13 . The upper cover positioning posts 13 are inserted into the upper cover positioning holes 22 to achieve rapid positioning and magnetic attraction between the upper cover 20 and the bottom mold 10 .

[0025] Matching magnetic components are provided at the four corners of the upper cover 20 and the bottom mold 10 for magnetic connection to clamp the PCB board stably.

[0026] The bottom mold 10 is provided with a plurality of first avoidance grooves 14 for avoiding components on the PCB board to prevent the components from being crushed and to reduce the weight of the fixture.

[0027] The upper cover 20 is provided with a clearance hole 21 matching the PCB positioning column 12 , which is used to clear the PCB positioning column 12 to ensure stable pressing and prevent the PCB positioning column 12 from hitting the upper cover 20 .

[0028] The upper cover 20 is provided with a plurality of second air-avoiding grooves 23 for avoiding components on the PCB board to prevent the components from being crushed and to reduce the weight of the fixture.

[0029] At least two extraction grooves 24 are provided on the side of the upper cover 20 to facilitate the separation of the upper cover 20 and the bottom mold 10 by hand.

[0030] The pressing cover 30 is made of acrylic material and is transparent so that the process of pressing the connecting pins can be observed.

[0031] The pressing cover 30 is provided with a pressing guide hole 31 , and the bottom mold 10 is provided with a pressing guide column matching the pressing guide hole 31 . The pressing guide column is inserted into the pressing guide hole 31 , which is beneficial to the rapid positioning and pressing of the pressing cover 30 .

[0032] The surface of the pressure cover 30 is a horizontal plane, and the side of the bottom mold 10 opposite to the pressure cover 30 is a horizontal plane. The two horizontal planes fit together, which is conducive to vertically pressing the connecting pins into the welding holes of the PCB board.

[0033] The working process of the bulk connection pin welding fixture of the utility model is as follows:

[0034] Step 1: Insert the connecting needle into the bottom mold 10.

[0035] Step 2: Place the PCB board with solder paste printed on the welding holes into the bottom mold 10, so that all the connecting pins are inserted into the corresponding welding holes of the PCB.

[0036] Step 3: Install the upper cover 20, insert the upper cover positioning column 13 into the upper cover positioning hole 22, and use the magnetic attraction to press the entire PCB onto the bottom mold 10 to fix the PCB.

[0037] Step 4: Flip the assembled upper cover 20 and bottom mold 10 by 180 degrees as a whole, and use the pressing cover 30 to press all the connecting pins onto the PCB pads, so that the welding ends of the connecting pins are in close contact with the PCB pads.

[0038] Step 5: After taking out the pressure cover 30, the assembled fixture is passed through a reflow furnace to complete the welding.

[0039] Step 6: After soldering is completed, disassemble the fixture behind the furnace and take out the PCBA with OK soldering.

[0040] Compared with the prior art, the bulk connecting pin welding fixture of the utility model can realize batch welding of bulk connecting pins, which is beneficial to improving welding efficiency and realizing large-scale production. It can realize vertical welding of connecting pins and pads, facilitates subsequent module assembly, and ensures welding quality.

[0041] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any modifications, equivalent substitutions and improvements made within the concept of the present invention should be included in the patent protection scope of the present invention.

Claims

1. Bulk connection pin welding fixture, It is characterized in that It comprises a bottom mold, an upper cover and a pressure cover, wherein a connecting pin is vertically inserted on the bottom mold, the upper cover is magnetically connected to the bottom mold, a PCB board is clamped between the upper cover and the bottom mold, the connecting pin is vertically inserted into the welding hole of the PCB board, the pressure cover and the upper cover are respectively located on different sides of the bottom mold, and the pressure cover is used to press the connecting pin into the welding hole of the PCB board; The bottom mold is provided with a plurality of through connection needle positioning holes, and the connection needles are vertically inserted into the connection needle positioning holes; The bottom mold is provided with a plurality of PCB positioning posts, and the PCB board is provided with PCB positioning holes matching with the PCB positioning posts, and the PCB positioning posts are inserted into the PCB positioning holes.

2. The bulk connection pin welding jig according to claim 1, It is characterized in that Matching magnetic suction components are arranged at the four corners of the upper cover and the bottom mold.

3. The bulk connection pin welding jig according to claim 1, It is characterized in that The bottom mold is provided with a plurality of upper cover positioning posts, the upper cover is provided with upper cover positioning holes matching with the upper cover positioning posts, and the upper cover positioning posts are inserted into the upper cover positioning holes.

4. The bulk connection pin welding jig according to claim 1, It is characterized in that The bottom mold is provided with a plurality of first air-avoiding grooves for avoiding components on the PCB board.

5. The bulk connection pin welding jig according to claim 1, It is characterized in that The upper cover is provided with a clearance hole matching the PCB positioning column and used for avoiding the PCB positioning column.

6. The bulk connection pin welding jig according to claim 1, It is characterized in that The upper cover is provided with a plurality of second air-avoiding grooves for avoiding components on the PCB board.

7. The bulk connection pin welding jig according to claim 1, It is characterized in that At least two extraction grooves are arranged on the side of the upper cover.

8. The bulk connection pin welding jig according to claim 1, It is characterized in that The gland is made of acrylic material.

9. The bulk connection pin welding jig as claimed in claim 8, It is characterized in that The pressing cover is provided with a pressing guide hole, and the bottom mold is provided with a pressing guide column matching the pressing guide hole, and the pressing guide column is inserted into the pressing guide hole.

10. The bulk connection pin welding jig according to claim 1, It is characterized in that The surface of the pressure cover is a horizontal plane, and the side of the bottom mold opposite to the pressure cover is a horizontal plane.

Images