FPC foam attaching jig

Abstract

The utility model discloses an FPC (Flexible Printed Circuit) foam attaching jig, FPC foam comprises foam release paper and a foam body attached to the foam release paper, the foam release paper is provided with a plurality of first positioning holes for cooperative positioning when the foam body is attached to an FPC mother board, and the FPC foam attaching jig comprises a base and a positioning plate assembled on the base, the positioning plate is provided with a positioning groove used for limiting the foam body and a positioning column used for being aligned with the first positioning hole, the FPC mother board is provided with a second positioning hole matched with the positioning column, the groove bottom of the positioning groove is provided with a vacuum adsorption hole used for adsorbing and fixing the foam body, and the base is provided with an air chamber used for being communicated with a negative pressure source. And the air chamber is communicated with the vacuum adsorption hole, and through auxiliary positioning of the jig, a visual alignment mode during manual foam pasting can be replaced, so that the stability of the foam pasting position is guaranteed, and the working efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of FPC production equipment, in particular to an FPC foam attachment jig. Background Art

[0002] Flexible Printed Circuit (FPC) is a highly reliable and flexible printed circuit board made of polyimide or polyester film. Generally, foam is provided in some parts of the FPC for cushioning.

[0003] Currently, manual methods are commonly used to attach foam to FPCs through visual alignment. However, the manual foam attaching method is prone to uneven or large offset foam attachment positions, resulting in poor stability of the foam attachment position and low operating efficiency. Utility Model Content

[0004] To this end, in order to solve the above problems, the present invention provides an FPC foam attachment jig, which can replace the visual alignment method when manually attaching foam to ensure the stability of the foam attachment position and improve work efficiency.

[0005] To achieve the above purpose, the technical solutions provided by this utility model are as follows:

[0006] The utility model provides an FPC foam attachment jig, wherein the FPC foam includes a foam release paper and a foam body attached to the foam release paper, and the foam release paper has a plurality of first positioning holes for cooperating in positioning the foam body when attached to the FPC motherboard, including a base and a positioning plate assembled on the base; the positioning plate is provided with a positioning groove for limiting the foam body and a positioning column for aligning the first positioning hole, and a second positioning hole cooperating with the positioning column is provided on the FPC motherboard; a vacuum adsorption hole for adsorbing and fixing the foam body is provided at the bottom of the positioning groove, and the base is provided with an air chamber for connecting to a negative pressure source, and the air chamber is connected to the vacuum adsorption hole.

[0007] Furthermore, the diameter of the positioning column is 2.00-0.05 mm.

[0008] Furthermore, the inner diameters of the first positioning hole and the second positioning hole are both 2.00+0.05 mm.

[0009] Furthermore, a concave air chamber is provided on the side of the base facing the positioning plate, and the vacuum adsorption hole is surrounded by the opening of the air chamber; a vent hole connected to the air chamber is provided on the side of the base away from the positioning plate, and the vent hole is used to connect to an external negative pressure source.

[0010] Furthermore, the positioning plate can be detachably covered on the base, and when covered, there is a gap between the outer peripheral wall of the positioning plate and the outer peripheral wall of the base, and the outer peripheral walls of the positioning plate and the base are both wrapped with sealing tape to seal the gap.

[0011] Furthermore, the inner diameter of the vacuum adsorption hole is 0.60±0.05 mm.

[0012] The technical solution provided by the utility model has the following beneficial effects:

[0013] When pasting FPC foam, the first positioning hole of the foam release paper with the foam body is put on the positioning column of the positioning plate, and with the auxiliary positioning of the positioning column, the relative position of the foam body on the positioning plate is ensured to be stationary. Then the foam body is placed in the positioning groove of the positioning plate, and then the foam body is adsorbed and fixed by the vacuum adsorption hole of the positioning plate, and then the foam release paper is torn off, leaving only the foam body in the positioning groove, and finally the second positioning hole of the FPC motherboard is put on the positioning column of the positioning plate, and with the auxiliary positioning of the positioning column, the relative position of the foam body of the FPC monomer on the FPC motherboard corresponds to the foam body on the positioning plate, thereby ensuring that the foam body is accurately attached to the foam body attachment area of the FPC monomer under the auxiliary positioning of the jig, so as to replace the visual alignment method when manually pasting foam, thereby ensuring the stability of the attachment position of the foam body on the FPC monomer, and also improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG2 is a cross-sectional view of an FPC foam attaching jig on which FPC foam and an FPC motherboard are placed in an embodiment;

[0015] Figure 2 Shown is a top view of the positioning plate in the embodiment;

[0016] Figure 3 Shown Figure 2 Enlarged schematic diagram of area A in the middle;

[0017] Figure 4 The figure shows a schematic diagram of the FPC foam being attached to the FPC motherboard in the embodiment. DETAILED DESCRIPTION

[0018] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the disclosure of this invention and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, those skilled in the art will understand other possible implementations and the advantages of this invention. The components in the figures are not drawn to scale, and similar reference numerals are generally used to represent similar components.

[0019] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0020] Reference Figures 1 to 3 As shown, this embodiment provides an FPC foam attachment fixture, and as Figure 4 As shown, the FPC foam 1 of this embodiment includes a foam release paper 11 and a foam body 12 attached to the foam release paper 11, and the foam release paper 11 has a plurality of first positioning holes 111 for cooperating and positioning the foam body 12 when attached to the FPC motherboard 2.

[0021] like Figure 1 and Figure 3 As shown, the FPC foam attachment jig of this embodiment includes a base 4 and a positioning plate 3 mounted on the base 4. The positioning plate 3 is provided with a positioning groove 31 for limiting the position of the foam body 12 and a positioning column 33 for aligning the first positioning hole 111. The FPC motherboard 2 is provided with a second positioning hole 22 that matches the positioning column 33. The bottom of the positioning groove 31 is provided with a vacuum adsorption hole 32 for adsorbing and fixing the foam body 12. The base 4 is provided with an air chamber 41 for connecting to a negative pressure source, and the air chamber 41 is connected to the vacuum adsorption hole 32. The negative pressure source is a suction fan or air compressor. Of course, at least one FPC unit 21 is arranged on the FPC motherboard 2.

[0022] In this embodiment, the diameter of the positioning column 33 is 2.00-0.05mm, and the inner diameters of the first positioning hole 111 and the second positioning hole 22 are both 2.00+0.05mm. The dimensions of the positioning column 33, the first positioning hole 111 and the second positioning hole 22 are designed to ensure that the attachment dimensions of the foam body 12 when attached to the FPC monomer 21 are within the normal production specified range.

[0023] When attaching the FPC foam 1, the first positioning hole 111 of the foam release paper 11 with the foam body 12 is put on the corresponding positioning column 33, and with the auxiliary positioning of the positioning column 33, the relative position of the foam body 12 on the positioning plate 3 is kept stationary. Then the foam body 12 is placed in the positioning groove 31 of the positioning plate 3. After that, the foam body 12 is fixed by the vacuum adsorption hole 32 of the positioning plate 3. Then the foam release paper 11 is torn off, leaving only the foam body 12 in the positioning groove 31. Finally, the second positioning hole 111 of the FPC motherboard 2 is attached. The positioning hole 22 is sleeved on the corresponding positioning column 33, and with the auxiliary positioning of the positioning column 33, it is ensured that the foam body attachment area of the FPC monomer 21 on the FPC motherboard 2 corresponds to the relative position of the foam body 12 on the positioning plate 3, thereby ensuring that the foam body 12 is accurately attached to the foam body attachment area of the FPC monomer 21 under the auxiliary positioning of the FPC foam attachment fixture of this embodiment, so as to replace the visual alignment method when manually attaching foam, thereby ensuring the stability of the attachment position of the foam body 12 on the FPC monomer 21 and improving working efficiency.

[0024] In another preferred embodiment, the positioning plate 3 can be detachably covered on the base 4, and when covered, there is a gap between the outer peripheral wall of the positioning plate 3 and the outer peripheral wall of the base 4. The outer peripheral walls of the positioning plate 3 and the base 4 are wrapped with sealing tape to seal the gap to prevent air leakage from the side of the FPC foam attachment fixture of this embodiment, thereby ensuring the negative pressure effect in the air chamber 41.

[0025] More specifically, Figure 1 As shown, the base 4 is provided with a concave air chamber 41 on the upper side facing the positioning plate 3, the vacuum adsorption hole 32 is surrounded by the opening of the air chamber 41, and the base 4 is provided with a vent hole 42 connected to the air chamber 41 on the bottom side facing away from the positioning plate 3, and the vent hole 42 is used to connect to an external negative pressure source.

[0026] When the positioning plate 3 and the base 4 are covered, the air chamber 41 of the base 4 is covered by the positioning plate 3, and each vacuum adsorption hole 32 is directly connected to the air chamber 41, and then through the valve to control the connection or disconnection between the air chamber 41 and the negative pressure source, so as to facilitate the removal of the FPC motherboard 2 with the foam body 12 attached.

[0027] Of course, in other embodiments, the base 4 and the positioning plate 3 may also be integrally connected, a vacuum adsorption hole 32 may be provided at the bottom of the positioning groove 31 of the positioning plate 3, and an air duct connected to the vacuum adsorption hole 32 may be provided on the side wall of the base 4, and the negative pressure source may be connected to the air duct through the air pipe, so that the foam body 12 may be fixed by vacuum adsorption.

[0028] In another preferred embodiment, the inner diameter of the vacuum adsorption hole 32 is 0.60±0.05 mm to ensure the adsorption force of the foam body 12 in the positioning groove 31 .

[0029] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the form and details of the present invention without departing from the spirit and scope of the present invention as defined by the appended claims, and all of these changes are within the scope of protection of the present invention.

Claims

1. An FPC foam attachment jig, wherein the FPC foam includes a foam release paper and a foam body attached to the foam release paper, and the foam release paper has a plurality of first positioning holes for cooperating and positioning the foam body when attached to the FPC motherboard, characterized in that: It includes a base and a positioning plate assembled on the base; The positioning plate is provided with a positioning groove for limiting the foam body and a positioning column for aligning the first positioning hole, and the FPC motherboard is provided with a second positioning hole that matches the positioning column; A vacuum adsorption hole for adsorbing and fixing the foam body is provided at the bottom of the positioning groove, and an air chamber for communicating with a negative pressure source is provided at the base, and the air chamber is communicated with the vacuum adsorption hole.

2. The FPC foam attachment jig according to claim 1, characterized in that: The diameter of the positioning column is 2.00-0.05 mm.

3. The FPC foam attachment jig according to claim 2, characterized in that: The inner diameters of the first positioning hole and the second positioning hole are both 2.00+0.05 mm.

4. The FPC foam attachment jig according to any one of claims 1 to 3, characterized in that: A concave air chamber is provided on the side of the base facing the positioning plate, and the vacuum adsorption hole is surrounded by the opening of the air chamber; a vent hole connected to the air chamber is provided on the side of the base away from the positioning plate, and the vent hole is used to connect to an external negative pressure source.

5. The FPC foam attachment jig according to claim 4, characterized in that: The positioning plate can be detachably covered on the base, and when covered, a gap is formed between the outer peripheral wall of the positioning plate and the outer peripheral wall of the base, and the outer peripheral walls of the positioning plate and the base are both wrapped with sealing tape to seal the gap.

6. The FPC foam attachment jig according to any one of claims 1-3, characterized in that: The inner diameter of the vacuum adsorption hole is 0.60±0.05 mm.

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