Method and device for processing electric hammer drill shank

A processing method, the technology of electric hammer drilling, applied in the direction of metal processing equipment, manufacturing tools, metal rolling, etc., can solve the problems of difficult guarantee of processing accuracy and long working hours, so as to improve production efficiency, ensure consistency and processing accuracy Effect

Active Publication Date: 2008-01-02
江苏爵克数控刀具有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

This processing method not only takes a long time, but also processes the pits and grooves o

Method used

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  • Method and device for processing electric hammer drill shank
  • Method and device for processing electric hammer drill shank
  • Method and device for processing electric hammer drill shank

Examples

Experimental program
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Embodiment Construction

[0015] A specific processing process of the present invention is: machining the bar blank to obtain the outer circle; heating the workpiece blank to 850°C and sending it to the rolling equipment including the structure in Figure 3 and Figure 4, and clamping and fixing the blank 1 , set four fan-shaped templates 2 whose rotation axes are perpendicular to the axis of the blank in four directions at intervals of 90° on the periphery of the handle of the blank, and set a protruding die 3 at the center of the outer edge of the fan-shaped template, and the center of the die is facing the axis of the blank. The depth of the die head corresponds to the pit or groove to be processed, and the rotating shafts of the four fan-shaped templates rotate synchronously, extruding the shank of the blank from four directions, forming a pair of pits and a pair of grooves at one time; rolling After forming, the blank is turned again to remove the deformation protrusions caused by rolling on the pits...

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PUM

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Abstract

The invention relates to a machining method for drill bit, a machining method for shank of electric hammer drill. The invention comprises following procedures. a. rod stock is lathed to obtain cylinder. b. after workpeice stock is heated to 830-860deg.C it is sent to rolling equipment and a pair of concave pits and a pair of concave grooves are rolled at stock shank by rolling mould. c. rolled stock is lathed again and deformation hill at edges of concave pits and concave grooves generated by rolling is eliminated. Because concave pits and concave grooves at the shank of electric hammer drill is formed by once machining in hot rolling method in the invention, not only production efficiency is improved greatly but also four mould plates are located at the same time so that consistency and machining accuracy of machined product can be guaranteed.

Description

technical field [0001] The invention relates to a method for processing a drill bit, in particular to a method for processing the shank of an electric hammer drill. Background technique [0002] As shown in Figure 1 and Figure 2 of the handle of the existing electric hammer drill, its outer surface is provided with two pits E and two grooves F at intervals of 90°, and the electric hammer drill passes through the pits and grooves Connect with electric hammer. The processing of the shank of the electric hammer drill with this structure is traditionally done by milling two pits and two grooves after the completion of the outer circle machining. This processing method not only consumes a long time, but also processes the pits and grooves one by one through the indexing fixture, so the processing accuracy is not easy to guarantee. Contents of the invention [0003] The technical problem to be solved by the present invention is to propose a processing method for the shank of a...

Claims

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Application Information

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IPC IPC(8): B23P13/00B21B27/02B21B1/08
Inventor 邓玉清焦余华
Owner 江苏爵克数控刀具有限公司
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