Automatic indexing right-angle milling head driven by main motor

Abstract

The invention discloses an automatic indexing right-angle milling head which is driven by a main motor and used for a numerical control plano-milling machine, which comprises a fixed milling shell and a movable milling shell, wherein the upper part of the movable milling shell is matched in the fixed milling shell in a sliding manner, a fastening mechanism is arranged on the axial positioning endsurfaces of the two, a spiral bevel gear is mounted in a shaft sleeve through a bearing seat, a spline transmission shaft matched with a spline hole of the spiral bevel gear is connected with a slidepillow main shaft of a numerical control machine tool, the fastening mechanism comprises an oil cylinder fixed in the positioning end surface of the fixed milling shell, a piston of the oil cylinder is connected with a bolt, and a bolt head is placed in an annular T-shaped groove formed on the positioning end surface of the movable milling shell; and indexing gears which are disengaged when the fastening lock is locked and meshed when the fastening mechanism is meshed are respectively arranged on the shaft sleeve or the bearing seat and the spline transmission shaft. By utilizing the automatic indexing right-angle milling head, the traditional manual indexing operation can be converted to the automatic indexing controlled by a numerical control system, the working intensity of operation staff can be reduced, the processing time of a workpiece can be saved, and the indexing precision and the processing stability can be further improved.

Description

(1) Technical field: [0001] The invention relates to a machine tool accessory, in particular to a main motor-driven automatic indexing right-angle milling head for a CNC gantry milling machine. (two) background technology: [0002] The right-angle milling head is a common accessory of CNC gantry milling machines. Through a pair of spiral bevel gears, it converts the vertical rotation of the ram spindle into the horizontal rotation of the milling head to cut all sides of the workpiece. The current right-angle milling head has the function of indexing and rotation. Its structure includes a fixed milling shell fixedly connected with the ram and a movable milling shell that rotates with the fixed milling shell. The movable milling shell and the fixed milling shell are connected by bolts uniformly distributed around the circumference. , The bolt head fits in the annular "T" groove at the bottom of the fixed milling shell, the bolt is passed through the screw hole on the end face ...

AI Technical Summary

Problems solved by technology

[0003] It can be seen that the indexing of the traditional right-angle milling head is completed by manual operation, the labor intensity of the operator is high, the processing time of the workpiece is long, and the indexing is observed by naked eyes, which inevitably leads to misjudgment and affects the processing quality

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