A Drilling Power Head with Self-control Feed State

Abstract

The invention provides a drilling power head capable of controlling the feeding states of the drilling power head. The drilling power head comprises a power device, a feeding portion and a drilling portion. The feeding portion comprises a lead screw, a conversion device, a sliding plate and a linear guide rail pair, wherein the conversion device is matched with the lead screw and is capable of moving vertically, the sliding plate is fixedly connected with the conversion device, the linear guide rail pair is matched with the sliding plate, and the drilling portion is fixedly connected with the sliding plate. A floating type structure is applied to the connection between a nut and a nut base. Automatic conversion of the feeding states is achieved in the mode that an inductive switch detects the position. According to the feeding mode, when a drill bit does not make contact with a workpiece, the drill bit is in the rapidly-feeding state; when the drill bit makes contact with the workpiece, the feeding state of the drill bit is automatically converted to the workpiece-contacting feeding state; when the drill bit penetrates through the workpiece or reaches the portion of a countersink, the feeding state of the drill bit is automatically converted to the rapidly-reversing state. Feeding distance data such as the length of the drill bit and the thickness of the workpiece do not need to be input except the depth of the countersink needs to be input. By the adoption of the drilling power head capable of controlling the feeding states of the drilling power head, both a through hole and the countersink can be drilled, the machining efficiency is high, the structure is simple, maintenance is not needed, and mistaken operation by operation personnel can be avoided.

Description

technical field [0001] The invention relates to a drilling power head, in particular to a drilling power head in a self-control feed state. Background technique [0002] At present, the drilling power head with servo feed on the drilling machine generally cannot automatically control the transition between the feed states. It needs to input the workpiece thickness, drill bit length and idle stroke allowance in advance to calculate the fast forward, work forward and fast reverse. The conversion position is controlled by the numerical control device or the starting position of the work is determined by the tool setting, and then the work is changed from the work state to the fast rewind state after drilling through, so as to complete the processing of the through hole. For different drills and workpieces with different thicknesses, the operator must often measure and input parameters such as workpiece thickness and drill length, which makes the operation more cumbersome, and s...

AI Technical Summary

Problems solved by technology

For different drills and workpieces with different thicknesses, the operator must often measure and input parameters such as workpiece thickness and drill length, which makes the operation more cumbersome, and sometimes forget to input parameters such as workpiece thickness and drill length after the working conditions change, resulting in Misoperation or damage to the drill bit, and at the same time, the efficiency of drilling is reduced due to the empty stroke allowance, which is the deficiency of the existing technology

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