Board shearing machine provided with retractable bearing platform

Abstract

The invention discloses a board shearing machine provided with a retractable bearing platform. The board shearing machine comprises the board bearing platform, wherein bracket arms are fixed on one side surface of the board bearing platform, each bracket arm comprises a fixed first bracket arm body and a movable second bracket arm body located in each first bracket arm body, a plurality of positioning holes are formed in the first and second bracket arm bodies, the distance between every two adjacent positioning holes in each first bracket arm body is equal to that between every two adjacent positioning holes in each second bracket arm body, and the second bracket arm bodies are fixed on the first bracket arm bodies through clamping pieces in the positioning holes. The board shearing machine has the advantages as follows: the retractable bracket arms are added on the original board bearing platform, so that lengths of the bracket arms can be adjusted along with lengths of PCBs (printed circuit boards), the PCBs can always be kept stable when being sheared, shearing is facilitated, and the labor intensity of workers is reduced.

Description

technical field [0001] The present invention relates to a shearing machine, in particular to a telescopic platform shearing machine. Background technique [0002] In the production process of electronic and electrical products, PCB boards are used. When making a PCB board, it will use a shearing machine to cut the size of the PCB board. The shearing machine is a machine that uses one blade to make a reciprocating linear motion relative to the other blade to cut the plate. It uses the moving upper blade and the fixed lower blade to apply shear force to the plates of various thicknesses by adopting a reasonable blade gap, so that the plates are broken and separated according to the required size. Shearing machine is a kind of forging machinery. When using the shearing machine to cut the PCB board, since the length of the bracket arm of the board holding platform of the shearing machine has been fixed, it has a lot of inconvenience in operation: when the too long PAB board i...

AI Technical Summary

Problems solved by technology

When using the shearing machine to cut the PCB board, since the length of the bracket arm of the board holding platform of the shearing machine has been fixed, it has a lot of inconvenience in operation: when the too long PAB board is placed on it, the PCB board There may be a large section outside the bracket arm, which makes the PCB board unstable; the short PCB board is placed on it, although the bracket arm can completely place the PCB board, but the exposed bracket arm affects people's operation

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