Multi-FPC welding positioning assembly

Abstract

The utility model belongs to the technical field of positioning, and relates to a multi-FPC welding positioning assembly, which comprises a base and a bottom plate positioned and placed on the base, four V-shaped limiting blocks are arranged at four corners of the base, a positioning area for limiting the position of the bottom plate is defined by all the V-shaped limiting blocks, a plurality of FPC placing areas are arranged on the bottom plate side by side, and the FPC placing areas are positioned on the bottom plate. A plurality of positioning pins are arranged in the positioning area, the height of the positioning pins is larger than the thickness of the bottom plate, and a plurality of positioning holes for the positioning pins to penetrate through are formed in each FPC placing area. According to the positioning assembly, a plurality of FPCs can be pasted to the front face of the bottom plate and then placed on the base, the base is fixed to the welding equipment, the FPCs and the bottom plate are placed on the base in turn, the welding equipment can conduct welding operation on the FPCs at a time, the operation efficiency is improved, and the welding precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning, in particular to a multi-FPC welding positioning component. Background Art

[0002] FPC (flexible printed circuit) is a printed circuit made of flexible insulating substrate, so it can be freely wound and folded within a certain range without damaging the wires, to meet the installation needs of different miniaturized electronic products. However, rigid components may be mounted on parts of the flexible printed circuit board, making it impossible for the FPC to be placed flat on the carrier.

[0003] Chinese patent CN209659735U discloses an automatic FPC bottom plate machine, which requires the bottom plate, middle frame and FPC to be assembled together in sequence, with an edge positioning between the bottom plate and the middle frame, and the FPC and the middle frame are bonded by a single-sided adhesive. However, the FPC is easy to deform, and the positioning may be inaccurate when there are many welding positions, which will not meet the increasingly high welding accuracy requirements.

[0004] Therefore, it is necessary to design a special positioning tool to solve the above problems. Summary of the invention

[0005] The main purpose of the utility model is to provide a multi-FPC welding positioning component, which can not only position the FPC with the base as a whole, but also each hole position can be accurately positioned by a positioning needle, so that the welding position is more accurate.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a multi-FPC welding positioning component, including a base and a bottom plate positioned and placed on the base, four V-shaped limit blocks are arranged at the four corners of the base, all V-shaped limit blocks surround a positioning area that limits the position of the bottom plate, multiple FPC placement areas are arranged side by side on the bottom plate, a plurality of positioning pins are arranged in the positioning area, the height of the positioning pins is higher than the thickness of the bottom plate, and each FPC placement area is provided with a plurality of avoidance grooves and a plurality of small positioning holes for the positioning pins to pass through.

[0007] Specifically, two opposite sides of the base are provided with arc-shaped notches within the lower projection range of the bottom plate.

[0008] Furthermore, magnets are respectively provided on both sides of the FPC placement area, and the base is made of magnetic conductive material.

[0009] Furthermore, the base is provided with a positioning column within the range of the lower projection of the magnet, the height of the positioning column is lower than the thickness of the bottom plate, and the diameter is larger than the diameter of the positioning pin, the top of the positioning column is hemispherical, and the bottom plate is provided with a large positioning hole for the positioning column to pass through.

[0010] Specifically, a finger groove for peeling off the FPC is provided on one side of the FPC placement area.

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

[0012] The positioning assembly can firstly stick multiple FPCs on the front side of the base plate, and then place them on the base. The base is fixed on the welding equipment. The FPCs and the base plate are placed on the base in turn, so that the welding equipment can perform welding operations on multiple FPCs at one time, thereby improving the working efficiency and ensuring the welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of the multi-FPC welding positioning component during mounting in the embodiment;

[0014] Figure 2 An exploded view of the multi-FPC welding positioning component during mounting in the embodiment;

[0015] Figure 3 This is a partial enlarged view of the edge of the base plate.

[0016] The numbers in the figure represent:

[0017] 1-base, 11-V-shaped limit block, 12-positioning area, 121-positioning pin, 13-arc notch, 14-positioning column;

[0018] 2-bottom plate, 21-FPC placement area, 211-small positioning hole, 212-large positioning hole, 213-avoidance groove, 22-magnet, 23-finger groove;

[0019] 3-FPC. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with specific embodiments.

[0021] Example:

[0022] like Figures 1 to 3 As shown, a multi-FPC welding positioning component of the utility model includes a base 1 and a bottom plate 2 positioned and placed on the base 1, four V-shaped limit blocks 11 are provided at the four corners of the base 1, all V-shaped limit blocks 11 surround a positioning area 12 for limiting the position of the bottom plate 2, a plurality of FPC placement areas 21 are arranged side by side on the bottom plate 2, a plurality of positioning pins 121 are provided in the positioning area 12, the height of the positioning pins 121 is higher than the thickness of the bottom plate 2, and a plurality of avoidance grooves 22 and a plurality of small positioning holes 211 for the positioning pins 121 to pass through are provided in each FPC placement area 21.

[0023] FPC3 is first pasted on the upper surface of the base plate 2 by adhesive tape, and the pasting position is located on both sides of the length direction of FPC3. Because there are many components on the back of FPC3, the avoidance groove 213 can not only accommodate the position of the components, but also help the local FPC3 to perform preliminary positioning, and the base plate 2 and FPC3 will be connected as one. In actual use, a lot of base plates 2 can be prepared, and after pasting with multiple FPC3, they are placed on the base 1 in turn. The positioning pin 121 will not only pass through the base plate 2, but also through the FPC3, so that each part of the FPC3 will also be limited. The welding equipment can perform welding operations on multiple FPC3 at one time, which improves the working efficiency and ensures the welding accuracy.

[0024] like Figure 2 As shown, arc-shaped notches 13 are provided on two opposite sides of the base 1 and are within the lower projection range of the bottom plate 2 .

[0025] After welding is completed and the base 1 and the bottom plate 2 need to be separated, the arc-shaped notch 13 can provide a force point for grasping the side of the base 2, thereby facilitating the separation of the two.

[0026] like Figure 2 As shown, magnets 22 are respectively disposed on both sides of the FPC placement area 21, and the base 1 is made of magnetic conductive material.

[0027] When the bottom plate 2 is close to the base 1, the magnet 22 will automatically attract the base 1, so that the two will not separate under vibration. The two can only be separated under the above manual operation.

[0028] like Figures 1 to 3 As shown, the base 1 is provided with a positioning column 14 within the range of the projection under the magnet 22. The height of the positioning column 14 is lower than the thickness of the bottom plate 2, and the diameter is larger than the diameter of the positioning pin 121. The top of the positioning column 14 is hemispherical, and the bottom plate 2 is provided with a large positioning hole 212 for the positioning column 14 to pass through.

[0029] The base 1 and the bottom plate 2 are mainly positioned by the cooperation between the large positioning hole 212 and the positioning column 14. In the case of positioning with the positioning column 14, the positioning pin 121 may not even contact the inner wall of the small positioning hole 211. This can prevent the positioning pin 121 from being knocked out of shape during the relative movement between the base 1 and the bottom plate 2 due to its low strength. The ball head design of the positioning column 14 can make the positioning of the bottom plate 2 easier.

[0030] like Figure 3 As shown, a finger groove 24 for peeling off the FPC 3 is provided on one side of the FPC placement area 21 .

[0031] After the bottom plate 2 has completed the welding positioning function, the worker can peel off the tape from the position of the finger groove 24 to separate the entire PFC3 from the bottom plate 2.

[0032] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A multi-FPC welding positioning assembly, comprising a base and a bottom plate positioned on the base, characterized in that: Four V-shaped limit blocks are provided at the four corners of the base, and all the V-shaped limit blocks form a positioning area that limits the position of the base plate. Two opposite sides of the base are provided with arc-shaped notches located within the lower projection range of the base plate. A plurality of FPC placement areas are arranged side by side on the base plate, and a plurality of positioning pins are provided in the positioning areas. The height of the positioning pins is higher than the thickness of the base plate, and a plurality of avoidance grooves and a plurality of small positioning holes for the positioning pins to pass through are provided in each FPC placement area.

2. The multi-FPC welding positioning assembly according to claim 1, characterized in that: Magnets are respectively arranged on both sides of the FPC placement area, and the base is made of magnetic conductive material.

3. The multi-FPC welding positioning assembly according to claim 2, characterized in that: The base is provided with a positioning column within the range of the lower projection of the magnet. The height of the positioning column is lower than the thickness of the bottom plate and the diameter is larger than the diameter of the positioning pin. The top of the positioning column is hemispherical and a large positioning hole is provided on the bottom plate for the positioning column to pass through.

4. The multi-FPC welding positioning assembly according to claim 1, characterized in that: One side of the FPC placement area is provided with a finger groove for peeling off the FPC.

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