PCB automatic processing system

Abstract

The invention discloses a PCB automatic processing system. By virtue of an adopted soldering paste machine, convenient and efficient swinging adjustment can be realized, and an adjustment structure issimple and concise and low in center of gravity; in the printing process, high stability and high precision are achieved; and the adopted chip mounter is reasonable and reliable in movement structure, and the PCB chip mounting environment temperature can be changed, so that different chip mounting requirements can be satisfied. The PCB automatic processing system comprises a soldering paste printer, a chip mounter and a reflow soldering machine arranged in sequence; the soldering paste printer comprises a printing frame, wherein the printing frame is fixedly mounted; a sliding plate is mounted on the printing frame; the sliding plate is provided with a scraper translation apparatus; a whole scraper lifting apparatus is mounted on a scraper frame; two soldering paste machine air cylindersare mounted at the top end of the scraper frame in a perpendicular downward manner; air cylinder top rods of the soldering paste machine air cylinders are connected with an optical rod connecting partwhich is a cuboid; the soldering paste machine air cylinder top rods are fixedly mounted in the middle position of the optical rod connecting part; the chip mounter comprises a chip mounting assemblyand a feeding assembly arranged on the base; and an adjustable supporting part is arranged at the bottom of the base.

Description

technical field [0001] The invention relates to a PCB processing system, which is used for PCB solder paste printing, patching and reflow soldering processing procedures. Background technique [0002] PCB solder paste printing, patch and reflow soldering processes are important processes in PCB processing, which can be set in sequence to realize automated PCB processing; however, after long-term use, we found that the existing solder paste machine (solder paste printing machine) is manually adjusted, with poor precision; some mechanized adjustment structures are very complex, including independent X translation components, Y translation components and rotation components, and three different drive forms, making stability worse; solder paste printing machines perform "tin When printing paste, first a scraper should be lowered to the specified position, then the scraper needs to move once along the direction of the PCB board, and finally the scraper should be raised, the other...

AI Technical Summary

Problems solved by technology

In the existing design, the scraper is driven by a motor to move up and down, its reciprocation is not good enough, the overall structural stability is insufficient, the rise and fall of the scraper is not easy to control, and it cannot meet the high-precision requirements;

[0003] The existing placement machine needs the suction nozzle assembly to complete at least three-dimensional movement, the structure is complex, and the way the PCB itself does not move makes the adjustability of the tile poor. At the same time, the ambient temperature of the PCB cannot be changed during the placement process. Caused some high-quality patches to not be done reliably

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