CN217859239U

CN217859239U - Thimble magnetism pressfitting tool

Info

Publication number: CN217859239U
Application number: CN202222253380.2U
Authority: CN
Inventors: 陆贺生; 张磊; 刘彩平; 高孝波
Original assignee: Shenzhen Holitech Optoelectronics Co Ltd
Current assignee: Shenzhen Holitech Optoelectronics Co Ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-11-22
Anticipated expiration: 2032-08-26

Abstract

The utility model provides a thimble magnetism pressfitting tool, includes: a base and an upper cover; the base is provided with a plurality of grooves for placing the FPC and is fixedly provided with a plurality of magnets; the upper cover is fixedly provided with magnets which are equal to the magnets on the base in number and are matched with and attracted by the magnets; the upper cover is provided with ejector pins equal to the grooves on the base, and each ejector pin is elastically connected with the upper cover through a spring; each thimble is used for respectively propping against the corresponding connector after the connector is pasted on the FPC on the base; through the utility model discloses make the chip mounter paste the connector back on FPC, compress tightly connector and FPC, prevent when removing FPC to next process, lead to the connector to take place the skew, perhaps produce with the not coplane condition of FPC, can also prevent in addition when heating the tin cream, because the tin cream melts and flows, lead to the connector to take place the problem of removing.

Description

Thimble magnetism pressfitting tool

Technical Field

The utility model relates to a circuit board manufacturing field especially relates to a thimble magnetism pressfitting tool.

Background

With the development of the consumer electronics device technology towards miniaturization and high density, the usage of FPC connectors is increasing, and the connectors are usually soldered on the FPC by using solder paste, and in the prior art, the soldering manner of the connectors is roughly as follows: firstly, brushing solder paste on the FPC, then placing the connector on the FPC by a chip mounter, and then heating the FPC to melt the solder paste so as to weld the connector on the FPC; however, in the prior art, after the connector is attached to the FPC by the mounter, the FPC needs to be moved to the next process, the FPC is heated to melt the solder paste, so that the connector is soldered to the FPC, and in the moving process of the FPC, the connector is easily moved on the FPC to cause the alignment deviation between the connector and the FPC or the non-coplanarity between the connector and the FPC, and at this time, when the FPC is heated, the phenomena of insufficient soldering, inaccurate alignment and the like occur between the connector and the FPC, which reduces the service life of the product;

therefore, the utility model provides an thimble magnetism pressfitting tool, it pastes the connector back on FPC at the chip mounter, compresses tightly connector and FPC, prevents to remove FPC when to next process, leads to the connector to take place the skew, perhaps produces the not coplane condition with FPC, can also prevent in addition when heating the tin cream, because the tin cream melts and flows, leads to the connector to take place the problem of removing.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical scheme who uses does: the utility model provides a thimble magnetism pressfitting tool, includes: a base and an upper cover; the base is provided with a plurality of grooves for placing the FPC and is fixedly provided with a plurality of magnets; the upper cover is fixedly provided with magnets which are equal to the magnets on the base in number and are matched with and attracted by the magnets;

the upper cover is provided with ejector pins equal to the grooves on the base, and each ejector pin is elastically connected with the upper cover through a spring; each thimble is used for abutting against the corresponding connector after the connector is attached to the FPC on the base.

Furthermore, the upper cover is provided with a clearance for avoiding each connector; the upper cover is fixedly provided with a support, the support is positioned right above the clearance, and each thimble is elastically connected with the support through a spring.

Furthermore, each magnet is a high-temperature resistant magnet.

Furthermore, each magnet is adhered to the corresponding base or the corresponding upper cover through high-temperature-resistant curing glue.

Because the utility model adopts the above technical scheme, the utility model discloses the beneficial effect who has does: the utility model discloses a base and upper cover for the connector is pressed on FPC, has avoided because the connector that removes or the heating probably leads to squints FPC's problem, makes the connector can pinpoint with FPC all the time, prevents to take place because the connector is not coplane and the emergence of the condition such as rosin joint that produces with FPC.

Drawings

Fig. 1 is the overall structure diagram of the present invention.

Fig. 2 is a schematic view of the base structure of the present invention.

Figure 3 is a schematic view of the structure of the upper cover of the utility model,

fig. 4 is a schematic view of the overall structure section of the present invention.

Reference numerals: a base-1; an upper cover-2; a magnet-3; a bracket-4; a thimble-5; connector-6; and (3) FPC-7.

Detailed Description

In an embodiment, as shown in fig. 1 to 4, a magnetic pressing jig for a thimble includes: a base 1 and an upper cover 2; five grooves for placing the FPC are formed in the base 1, and a plurality of magnets 3 are fixedly arranged on the base; the upper cover 2 is fixedly provided with magnets 3 which are equal to the magnets 3 on the base 1 in number and are matched with and attracted;

the upper cover 2 is provided with a clearance for avoiding each connector 6; a bracket 4 is fixedly arranged on the upper cover 2, the bracket 4 is positioned right above the clearance, and five thimbles 5 are fixedly arranged on the bracket 4; each thimble 5 is elastically connected with the bracket 4 through a spring; each thimble 5 is used for respectively propping against the corresponding connector 6 after the connector 6 is pasted on the FPC7 on the base 1; when the device is used, firstly, the FPC7 is placed in a groove on the base 1, then, solder paste is coated on the position, needing to be attached, of the FPC7, the position of the plug-in unit 6 is pasted, then, the base 1 is placed in a chip mounter, the plug-in unit is attached to the FPC7 through the chip mounter, the corresponding position of each FPC is pasted, then, the base 1 is taken out of the chip mounter, the upper cover 2 is attached to the base 1, each ejector pin 5 is abutted against the corresponding plug-in unit 6, due to the existence of the magnet 3, the base 1 and the upper cover 2 are adsorbed together through magnetic force, and each spring is compressed, so that each ejector pin 5 is abutted against the corresponding plug-in unit 6 under the action of the spring, and the pin of each plug-in unit 6 is coplanar with the corresponding FPC 7; then the whole is placed in a reflow soldering furnace, and the solder paste is heated, so that the connector 6 and the FPC7 are welded together; taking out after welding; in addition, drill a 3.2mm hole in the lower left corner, the upper left corner and the lower right corner of base 1 apart from both sides 10mm, drill a 3mm hole in the lower left corner, the upper left corner and the lower right corner of upper cover 2 apart from both sides 10mm to the spacing pin of fixed mounting prevents that upper cover 2 and base 1 from taking place the dislocation condition when the installation cooperation.

Specifically, each magnet 3 is a high-temperature resistant magnet, and each magnet 3 is adhered to the corresponding base 1 or the corresponding upper cover 2 through high-temperature resistant cured adhesive.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a thimble magnetism pressfitting tool which characterized in that includes: a base (1) and an upper cover (2); the base (1) is provided with a plurality of grooves for placing the FPC, and a plurality of magnets (3) are fixedly arranged; the upper cover (2) is fixedly provided with magnets (3) which are equal to the magnets (3) on the base (1) in number and are matched with and attracted by the magnets;

the upper cover (2) is provided with ejector pins (5) equal to the grooves on the base (1), and each ejector pin (5) is elastically connected with the upper cover (2) through a spring; each thimble (5) is used for respectively propping against the corresponding connector after the connector is pasted on the FPC on the base (1).

2. The ejector pin magnetic pressing jig according to claim 1, wherein a clearance for avoiding each connector is provided on the upper cover (2); the upper cover (2) is fixedly provided with a support (4), the support (4) is located right above the clearance, and each ejector pin (5) is elastically connected with the support (4) through a spring.

3. The ejector pin magnetic pressing jig according to claim 1, wherein each magnet (3) is a high temperature resistant magnet.

4. A thimble magnetic pressing jig according to claim 3, wherein each magnet (3) is adhered to the corresponding base (1) or the corresponding upper cover (2) by a high temperature resistant cured adhesive.