Connecting device for beam main shaft mounting board of PCB digital control drilling machine

Abstract

The invention provides a connecting device for a beam spindle mounting board of a PCB (Printed Circuit Board) digital control drilling machine. The connecting device comprises a linear guide rail device, side mounting boards, main shaft mounting board devices and a center mounting board device, wherein the linear guide rail device composes a guide rail, guide rail fixing nuts and a guide rail sliding block; after the linear guide rail is mounted as per the requirement, the position of the sliding block can be adjusted; each main shaft mounting board device comprises a beam guide rail sliding block, a main shaft mounting board and a main shaft guide rail; each main shaft mounting board is fixed with the beam guide sliding block; and the main shaft guide rail is mounted on the main shaft mounting board, is well adjusted in precision and fixed on the main shaft mounting board through nuts. The connecting device is easy to mount and adjust, excellently solves the problem that the main shaft mounting boards of shaft I and shaft IV deform during mounting, and increases the drilling and machining accuracies of the whole machine.

Description

technical field [0001] The invention relates to the technical field of production of a circuit board numerically controlled drilling machine, in particular to a connection device for a main shaft mounting plate of a circuit board numerically controlled drilling machine. Background technique [0002] The precision of the circuit board CNC drilling machine is very important to the quality of the produced circuit board, but there are many factors that affect the precision of the drilling machine. The rigidity of each axis on the beam is particularly important to the accuracy. At present, in order to increase the speed of the circuit board CNC drilling machine, the weight of the moving part of the beam should be reduced as much as possible between the axes of the beam. Many brands of machines use simple screws for connection. , making the structure very simple. But at the same time, it also brings some adverse effects: the rigidity of the moving part of the beam is not enough, ...

AI Technical Summary

Problems solved by technology

The disadvantage of this connection method is: each spindle mounting plate is only partially connected and constrained, and the rigidity of the screw is not enough, resulting in insufficient rigidity of the spindle mounting plate movement and poor stability; when the X-axis in the bed direction is moving at high speed , each axis will twist, deform and oscillate in the directions of front and back, up and down, etc., causing the drilling spindle perpendicular to the beam to vibrate violently, and the drilling accuracy of the spindle will naturally deteriorate

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