Numerical-control vertical machine tool for end face milling and centre hole drilling

Abstract

The invention discloses a numerical-control vertical machine tool for end face milling and centre hole drilling. The numerical-control vertical machine tool comprises a lathe bed, a left saddle, a right saddle, a left combined retractable dual-spindle power head, a right combined retractable dual-spindle power head, an axial internal-retractable positioning device, a left drive device, a right drive device, an intermediate drive device, an integral tongs saddle, a high-rigidity column component, a self-aligning adjustable claw and a supporting device. The left saddle and the right saddle are respectively mounted on the left side and the right side of the lathe bed; the left combined retractable dual-spindle power head and the right combined retractable dual-spindle power head are respectively mounted on the left saddle and the right saddle; the axial internal-retractable positioning device is mounted on a right headstock; drilling and milling tools are respectively mounted on spindles of the left power head and the right power head; a middle column is vertically mounted on the back side of the middle of the lathe bed; the integral tongs saddle is vertically mounted on the middle column; the self-aligning claw which can be adjusted optionally according to length of parts is mounted on the integral tongs saddle; and the supporting device for facilitating feeding and discharging is mounted on the integral tongs saddle. The numerical-control vertical machine tool has stable precision and high efficiency and is safe and convenient to operate and easy to realize chip removal.

Description

Technical field [0001] The invention relates to the technical field of numerical control machine tools, in particular to a numerical control vertical milling end face drilling center hole machine tool. Background technique [0002] End milling and drilling center hole machine tools are widely used in batch and mass production of various shaft parts for milling and centering. The main reasons that affect the accuracy and stability of workpiece forming are: 1. The overall rigidity of the machine tool; 2. , The relative position relationship between the fixture and the spindle; 3. The repeated positioning accuracy of the machine tool. Generally, the end milling and drilling center hole machine tool adopts a horizontal bed. The servo motor + ball screw drives the left (right) power head to move left and right linearly relative to the middle fixture. The middle slide table feeds relative to the power head base on both sides. The layout is affected by the overall layout of the machine...

AI Technical Summary

Problems solved by technology

Generally, the end face drilling center hole machine tool adopts a horizontal bed, and the servo motor + ball screw drives the left (right) power head to move in a straight line relative to the middle fixture, and the middle slide table moves relative to the power head seats on both sides. The layout is affected by the overall layout of the machine tool, which will cause the iron filings generated during processing to be difficult to discharge from the bed, and when processing shorter shafts, the overhang of the tool handle installed will be lengthened, which will affect the rigidity of the power head when processing the workpiece. Big discount

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