CN112317969A

CN112317969A - High-precision laser FPC straight edge cutting process method

Info

Publication number: CN112317969A
Application number: CN202010974815.5A
Authority: CN
Inventors: 张旦; 李春雷; 王飞跃
Original assignee: Dongguan Hongyuen Electronics Co ltd
Current assignee: Dongguan Hongyuen Electronics Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-02-05
Anticipated expiration: 2040-09-16
Also published as: CN112317969B

Abstract

A high-precision laser FPC straight edge cutting process method comprises the following steps: (1) acquiring a cutting line, and transferring the FPC to a rapid measuring instrument, wherein the rapid measuring instrument comprises a machine table, a light source device, a scanner, a CCD imaging module and a control center, the light source device is used for polishing upwards and penetrates through a marking hole of the FPC, the scanner is used for scanning a two-dimensional code on the FPC and reading information of the two-dimensional code on the FPC, the CCD imaging module is used for imaging the FPC, and the control center is used for drawing a real-time drawing and generating a new file by combining the information of the two-dimensional code; step (2), cutting the waste edge area, reading the two-dimensional code of the FPC to be cut by a scanning device of the cutting device, calling corresponding file information from the control center by the cutting device, and cutting the FPC by the cutting device according to the file information; and (3) automatically abandoning and removing the used drawing by the control center. The invention effectively reduces the influence of expansion deformation on actual cutting and ensures the cutting precision.

Description

High-precision laser FPC straight edge cutting process method

Technical Field

The invention relates to a cutting method, in particular to a high-precision process method for cutting a straight edge of an FPC (flexible printed circuit) by laser.

Background

The traditional FPC laser cutting process is to cut all products by one standard diagram, so that the deformation of the FPC is required to be very small in a cutting mode, and once the expansion and contraction deformation of the FPC and the offset of the edge milling position are achieved, a straight line effect cannot be cut. The straight edge effect can not be ensured for products with larger expansion deformation and larger edge milling deviation, and the cutting reject ratio is higher.

Disclosure of Invention

Therefore, in view of the defects of the prior art, the present invention aims to provide a high-precision process for laser cutting the straight edge of the FPC.

A high-precision laser FPC straight edge cutting process method is used for cutting FPC waste edges, the FPC comprises an effective area and a waste edge area, a cutting line is arranged between the effective area and the waste edge area, a marking hole is formed in the cutting line, a two-dimensional code is arranged on the FPC, and the high-precision laser FPC straight edge cutting process method comprises the following steps:

the method comprises the following steps that (1) cutting lines are obtained, the FPC is transferred to a quick measuring instrument, the quick measuring instrument comprises a machine table, a light source device, a scanner, a CCD imaging module and a control center, the light source device, the scanner and the CCD imaging module are connected to the control center, the light source device is installed in the machine table, a light transmission plate is arranged on the machine table, the scanner and the CCD imaging module are arranged above the machine table, the FPC is placed on the light transmission plate, the light source device shines upwards and penetrates through a marking hole of the FPC, the scanner scans a two-dimensional code on the FPC and reads two-dimensional code information on the FPC, the CCD imaging module images the FPC and sends imaging information to the control center, and the control center analyzes the light transmission information of the marking hole to capture a cutting edge mode and draw a real-time drawing, and combines the two-dimensional code information to generate;

step (2), cutting the waste edge area, transferring the FPC obtained by the cutting line to a cutting device, connecting the cutting device with a control center, arranging a scanning device on the cutting device, reading the two-dimensional code of the FPC to be cut by the scanning device of the cutting device during working, calling corresponding file information from the control center by the cutting device, and cutting the FPC by the cutting device according to the file information;

and (3) after the FPC is cut, the control center can automatically abandon and remove the used drawing, so that the drawing is prevented from being used again.

In summary, the invention employs the rapid measurement instrument to read the two-dimensional code information of the FPC, the CCD imaging module of the rapid measurement instrument cooperates with the light source device to capture the image of the FPC, the actual image information of the FPC is acquired, and the cutting device cuts the FPC according to the actual image information, thereby reducing the influence of the expansion deformation on the actual cutting, ensuring the cutting precision, and further improving the yield of the product.

Drawings

FIG. 1 is a schematic structural view of an FPC;

FIG. 2 is a schematic connection diagram of modules of the high-precision laser cutting FPC straight edge process method of the invention;

FIG. 3 is a schematic structural diagram of a rapid measurement instrument used in the high-precision laser cutting FPC straight edge process method of the present invention.

Detailed Description

In order to clearly show the technical scheme of the invention, the invention is further described with reference to the accompanying drawings.

As shown in fig. 1 to 3, the present invention provides a high precision laser FPC straight edge cutting process method, which is used for cutting a waste edge of an FPC10, wherein the FPC includes an effective area 11 and a waste edge area 12, a cutting line is arranged between the effective area 11 and the waste edge area, a marking hole 13 is arranged on the cutting line, a two-dimensional code is arranged on the FPC, and the high precision laser FPC straight edge cutting process method includes the following steps:

step (1), obtaining cutting lines, transferring the FPC to a rapid measuring instrument, wherein the rapid measuring instrument comprises a machine table 60, a light source device 50, a scanner 40, a CCD imaging module 30 and a control center 20, the light source device 50, the scanner 40 and the CCD imaging module 30 are connected to the control center 20, the light source device 50 is arranged in the machine table 60, a light-transmitting plate is arranged on the machine table 60, the scanner 40 and the CCD imaging module 30 are arranged above the machine table 60, the FPC10 is placed on the light-transmitting plate, the light source device 50 shines upwards and penetrates through a marking hole 13 of the FPC, the scanner 40 scans a two-dimensional code on the FPC10 and reads two-dimensional code information on the FPC10, the CCD imaging module 30 images the FPC10 and sends imaging information to the control center 20, the control center 20 analyzes the light-transmitting information passing through the marking hole 13 and then captures the cutting edges to draw a real-time drawing, generating a new file by combining the two-dimension code information;

step (2), cutting the waste edge area 12, transferring the FPC10 obtained by the cutting line to a cutting device, wherein the cutting device is connected with a control center 20, a scanning device is arranged on the cutting device, when the cutting device works, the scanning device of the cutting device reads the two-dimensional code of the FPC10 to be cut, the cutting device calls corresponding file information from the control center 20, and the cutting device cuts the FPC10 according to the file information;

and (3) after the FPC is cut, the control center 20 automatically abandons and removes the used drawing, so that the drawing is prevented from being used again.

In summary, in the invention, the two-dimensional code information of the FPC10 is read by the rapid measurement instrument, the CCD imaging module 30 of the rapid measurement instrument cooperates with the light source device 50 to capture an image of the FPC10, so as to obtain the actual image information of the FPC10, and the cutting device cuts the FPC10 according to the actual image information, so that the influence of the expansion deformation on the actual cutting is reduced, the cutting precision is ensured, and the yield of the product is further improved.

The above-mentioned embodiments only express one embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The high-precision laser FPC straight edge cutting process method is used for cutting the waste edges of the FPC, the FPC comprises an effective area and a waste edge area, and is characterized in that a cutting line is arranged between the effective area and the waste edge area, marking holes are formed in the cutting line, two-dimensional codes are arranged on the FPC, and the high-precision laser FPC straight edge cutting process method comprises the following steps: