Combined jig for double-sided part punching of circuit board

Abstract

The utility model relates to a combined jig for double-sided part punching of a circuit board, which comprises a carrier plate and a plurality of barrier strips arranged on the upper surface of the carrier plate, and is characterized in that the carrier plate comprises a circuit board positioning area, a side wall area positioned outside the circuit board positioning area and a barrier strip supporting surface crossing the circuit board positioning area from one side of the side wall area; the barrier strip is tightly placed above the barrier strip supporting surface, the circuit board positioning area is internally provided with a positioning hole and a plurality of plug-in positioning holes, the barrier strip supporting surface is provided with a plurality of lower magnets, the barrier strip is provided with upper magnets in one-to-one correspondence with the lower magnets in position, and the barrier strip is also provided with a plurality of plug-in guide parts. According to the utility model, the double-sided reflow soldering of the circuit board can be completed by only one set of jig assembly, the die cost is low, only one-time positioning and one-time welding are needed for soldering, the working efficiency is high, and the soldering energy consumption is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to printed circuit board manufacturing technical field, especially relate to a combination fixture for circuit board double -sided piece. BACKGROUND

[0002] Circuit board, also known as circuit board or PCB (Printed Circuit Board), is the flat plate used for connecting and supporting electronic components in electronic equipment. It is usually made of insulating material, which is covered with conductive paths for transmitting electrical signals. Circuit board is widely used in various electronic products, such as mobile phones, computers, automotive electronics and industrial control equipment, etc.

[0003] In some circuit board products, it may also be necessary to weld several metal inserts on one or both sides of the circuit board, which requires the use of fixtures for positioning. If it is a double-sided piece product, the previous method may be to first position the circuit board with a front fixture, with the front of the circuit board facing up, and then insert the front insert downward, after welding is completed, the circuit board is turned over and placed on the back fixture, then the back insert is inserted downward, and then the welding is completed. This welding process requires two sets of fixtures, so the cost of the fixture is high; repositioning is required between two weldings, and the work efficiency is low; welding requires two times, and the welding energy consumption is large.

[0004] Therefore, it is necessary to provide a new welding fixture to solve the above problems. UTILITY MODEL CONTENT

[0005] The main purpose of the utility model is to provide a combination fixture for circuit board double-sided piece, which can provide positioning for the front insert and the back insert of the circuit board at the same time, so that the two-sided insert can be welded at the same time, saving the welding energy consumption.

[0006] The utility model realizes the above-mentioned purpose through the following technical scheme: a combination fixture for circuit board double-sided piece, comprising a carrier plate and a plurality of blocking strips arranged on the upper surface of the carrier plate, the carrier plate comprising a circuit board positioning area, a side wall area located outside the circuit board positioning area, and a blocking strip support surface spanning the circuit board positioning area from one side of the side wall area, the blocking strips are placed tightly above the blocking strip support surface, the circuit board positioning area is provided with positioning holes and a plurality of insert positioning holes, the blocking strip support surface is provided with a plurality of lower magnets, the blocking strips are provided with upper magnets corresponding to the positions of the lower magnets, and the blocking strips are further provided with a plurality of insert guide parts.

[0007] Specifically, the circuit board positioning area is provided with a plurality of circuit board positioning columns.

[0008] Specifically, the carrier plate is provided with two circuit board pickup hand holes, the two circuit board pickup hand holes are located on the transversely opposite sides of the circuit board positioning area, and each circuit board pickup hand hole extends from the side wall area to the circuit board positioning area.

[0009] Specifically, the side wall area is provided with pairs of baffle pickup hand holes, each pair of baffle pickup hand holes is located on the longitudinally opposite sides of the side wall area, and the range of the baffle pickup hand hole partially overlaps with the lower projection range of the baffle.

[0010] Specifically, the baffle is provided with a waist-shaped limiting hole at both ends, each waist-shaped limiting hole is located between two adjacent upper magnets, and the baffle supporting surface is provided with a baffle limiting column near the side wall area, the baffle limiting column is located between two adjacent lower magnets and corresponds to the position of the waist-shaped limiting hole.

[0011] The beneficial effects of the technical scheme of the utility model are:

[0012] The circuit board positioning area is a positioning area of the circuit board, and can embed the circuit board. The baffle can press the circuit board, and the pressing force is provided by the attraction between the upper magnet and the lower magnet, so that the carrier plate and the baffle can clamp the circuit board, and the circuit board and the combined jig are difficult to separate. The utility model can complete double-sided reflow soldering of the circuit board only by using one set of jig assembly, the mold cost is low, and the soldering only needs one-time positioning and one-time soldering, so that the work efficiency is high, and the soldering energy consumption is low. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a top view of the combined jig (thick line is the baffle contour, and thin line is the carrier plate contour);

[0014] Figure 2 It is a top view of the carrier plate;

[0015] Figure 3 It is a top view of the baffle;

[0016] Figure 4 It is a partial sectional view of the combined jig and the soldering product after assembly.

[0017] The numbers in the figure represent:

[0018] 1-combined jig, 11-carrier plate, 111-circuit board positioning area, 1111-positioning hole, 1112-insert positioning hole, 1113-circuit board positioning column, 112-side wall area, 1121-baffle pickup hand hole, 113-baffle supporting surface, 1131-lower magnet, 1132-baffle limiting column, 114-circuit board pickup hand hole, 12-baffle, 121-upper magnet, 122-insert guiding part, 123-waist-shaped limiting hole;

[0019] 21-Circuit board, 22-Front side connector, 23-Back side connector. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to specific embodiments.

[0021] Example:

[0022] like Figures 1 to 4 As shown, a combined jig 1 for double-sided assembly of circuit boards according to the present invention includes a carrier plate 11 and a plurality of baffles 12 disposed on the upper surface of the carrier plate 11. The carrier plate 11 includes a circuit board positioning area 111, a side wall area 112 located outside the circuit board positioning area 111, and a baffle support surface 113 that crosses the circuit board positioning area 111 from one side of the side wall area 112. The baffles 12 are placed close to the baffle support surface 113. The circuit board positioning area 111 is provided with positioning holes 1111 and a plurality of plug-in positioning holes 1112. The baffle support surface 113 is provided with a plurality of lower magnets 1131. The baffles 12 are provided with upper magnets 121 that correspond one-to-one with the positions of the lower magnets 1131. The baffles 12 are also provided with a plurality of plug-in guides 122.

[0023] The circuit board positioning area 111 is the positioning area for the circuit board 21, allowing the circuit board 21 to be embedded within it. The stop bar 12 presses down on the circuit board 21, with the pressure provided by the attraction between the upper magnet 121 and the lower magnet 1131. In this way, the carrier board 11 and the stop bar 12 can clamp the circuit board 21, preventing the circuit board 21 from easily separating from the combined fixture 1. The positioning cavity 1111 can adapt to the uneven structure under the circuit board 21. The plug-in positioning hole 1112 is used to provide insertion guidance for the reverse plug-in 23, while the plug-in guide part 122 on the stop bar 12 can provide insertion guidance for the front plug-in 22. With the circuit board 21 already fixed, the front plug-in 22 and the reverse plug-in 23 can be inserted into the circuit board 21 at the same time. Then, the combined fixture 1 is used to complete the reflow soldering of both sides at the same time. The mold cost is low, and the soldering only requires one positioning and one soldering, which not only has high work efficiency but also low soldering energy consumption.

[0024] like Figure 2 As shown, the circuit board positioning area 111 is provided with several circuit board positioning posts 1113.

[0025] The positioning area 111 of the circuit board has a low precision in limiting the side of the circuit board 21, while the positioning post 1113 of the circuit board can cooperate with the positioning hole on the circuit board 21, so that the relative position of the circuit board 21 and the carrier board 11 is more accurate, and the reverse plug-in 23 can better correspond to the position of the plug-in positioning hole 1112.

[0026] like Figure 1 and Figure 2As shown in the figure, the carrier plate 11 is provided with two circuit board pickup hand holes 114, and the two circuit board pickup hand holes 117 are located on the transversely opposite sides of the circuit board positioning area 111, and each circuit board pickup hand hole 117 extends from the side wall area 112 to the circuit board positioning area 111.

[0027] The circuit board 21 after welding needs to be taken out from the carrier plate 11, and it is difficult to take out if the edge of the circuit board 21 is completely surrounded by the side wall area 12, so the circuit board pickup hand hole 114 needs to provide a plate taking position, so that the circuit board 21 can be taken out more conveniently.

[0028] As shown in the figure, Figure 1 and Figure 2 As shown in the figure, the side wall area 112 is provided with a pair of baffle pickup hand holes 1121, and each pair of baffle pickup hand holes 1121 is located on the longitudinally opposite sides of the side wall area 112, and the range of the baffle pickup hand hole 1121 partially overlaps with the lower projection range of the baffle 12.

[0029] After welding, the baffle 12 needs to be taken out from the carrier plate 11 before the circuit board 21 is taken out. The separation of the baffle 12 needs to be assisted by the baffle pickup hand hole 1121. Because the baffle pickup hand hole 1121 makes the transverse sides of the end of the baffle 12 suspended, the end of the baffle 12 can be conveniently clamped by fingers.

[0030] As shown in the figure, Figure 2 and Figure 3 As shown in the figure, the two ends of the baffle 12 are provided with a waist-shaped limiting hole 123, and each waist-shaped limiting hole 123 is located between two adjacent upper magnets 121. The baffle supporting surface 113 is provided with a baffle limiting column 118 near the side wall area 112, and the baffle limiting column 118 is located between two adjacent lower magnets 114 and corresponds to the position of the waist-shaped limiting hole 123.

[0031] The upper magnet 121 and the lower magnet 1131 can only ensure that the carrier plate 11 and the baffle 12 are not easily separated, but the relative position between the carrier plate 11 and the baffle 12 is not accurate enough. The cooperation of the waist-shaped limiting hole 123 and the baffle limiting column 118 can ensure the accurate control of the relative position between the two. The length direction of the waist-shaped limiting hole 123 allows the baffle 12 to have a small movement space, but does not affect the positioning of the front plug-in component 22.

[0032] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the creative concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A combined jig for double-sided assembly of a circuit board, characterized by: The carrier plate comprises a circuit board positioning area, a side wall area outside the circuit board positioning area, and a barrier strip supporting surface spanning the circuit board positioning area from one side of the side wall area, the barrier strip is placed above the barrier strip supporting surface, the circuit board positioning area is provided with positioning holes and a plurality of plug-in positioning holes, the barrier strip supporting surface is provided with a plurality of lower magnets, the barrier strip is provided with upper magnets corresponding to the lower magnets, and the barrier strip is further provided with a plurality of plug-in guiding portions.

2. The combined jig for double-sided component mounting of a wiring board according to claim 1, wherein: The circuit board positioning area is provided with a plurality of circuit board positioning columns.

3. The combined jig for double-sided component mounting of a wiring board according to claim 1, wherein: The carrier plate is provided with two circuit board pickup hand holes, the two circuit board pickup hand holes are located on the transversely opposite sides of the circuit board positioning area, and each circuit board pickup hand hole extends from the side wall area to the circuit board positioning area.

4. The combined jig for double-sided component mounting of a wiring board according to claim 1, wherein: The side wall area is provided with pairs of barrier strip pickup hand holes, each pair of barrier strip pickup hand holes is located on the longitudinally opposite sides of the side wall area, and the range of the barrier strip pickup hand hole partially overlaps with the lower projection range of the barrier strip.

5. The combined jig for double-sided assembly of a circuit board according to claim 1, wherein: The barrier strip is provided with a waist-shaped limiting hole at both ends, each waist-shaped limiting hole is located between adjacent two upper magnets, the barrier strip supporting surface is provided with a barrier strip limiting column near the side wall area, the barrier strip limiting column is located between adjacent two lower magnets and corresponds to the position of the waist-shaped limiting hole.

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