Rotary arm drilling machine for metal machining and positioning mechanism of rotary arm drilling machine

Abstract

The invention relates to the technical field of rotary arm drilling machines, in particular to a rotary arm drilling machine for metal machining and a positioning mechanism of the rotary arm drilling machine, and solves the problems that when the rotary arm drilling machine is used, clamps in different shapes need to be replaced due to different shapes of workpieces, the operation is very inconvenient, and subsequent machining is affected due to the fact that chippings are prone to being left on the surface of a drill bit after the workpieces are drilled. Comprising a support mechanism, a drilling mechanism is arranged on the surface of the support mechanism, a positioning mechanism is arranged on the surface of the top end of the support mechanism, and an adjusting mechanism is arranged on the surface of the positioning mechanism. Limiting tables are installed in the rail grooves in the two sides, the positions of baffles are adjusted by adjusting the lengths of sliding plates and the limiting tables, T-shaped sliding blocks at the bottom ends of the baffles are inserted into one of the rail grooves, and therefore the positioning mechanism is fixed; at the moment, the adjusting rod can be driven to be pushed out through the compression spring, and the workpiece is clamped and positioned through the clamping plate.

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