Workpiece Drilling Rapid Retraction Device

Abstract

The invention relates to the field of machining, in particular to a quick return device for a workpiece drill hole. The device comprises a rack, a drilling machine and a positioning mechanism; the positioning mechanism comprises a first rotating block, a fixing sleeve and a sliding block, and a hook and a first torsional spring fixed to the rack are arranged on the first rotating block; the fixingsleeve is fixed to the sliding block, a positioning groove is formed in the fixing sleeve, the side, opposite to the positioning groove, of the fixing sleeve is provided with a second rotating blockhinged to the fixing sleeve and a communicating hole communicated with the positioning groove, a second torsional spring is fixedly arranged between the second rotating block and the fixing sleeve, abuffer hole relative to the communicating hole is formed in the second rotating block, and buffer cotton is arranged inside the buffer hole; a spring is fixedly arranged between the sliding block andthe rack, a pull rod is arranged on the sliding block, and a pull ring hooked by the hook is arranged on the pull rod; when the pull ring is hooked to the hook, the second rotating block and the firstrotating block abut against each other. The technical problem that the drilling quality is affected due to slow return in the prior art is solved, and the device is widely applied during workpiece through hole machining.

Description

technical field [0001] The invention relates to the field of machining, in particular to a fast retracting device for workpiece drilling. Background technique [0002] Drilling is a common process in the production process. After the drill bit drills the workpiece, it usually involves the problem of tool retraction. There are blind holes and through holes. When machining a through hole for the workpiece, the current traditional The method of tool retraction for the drilling machine is: use a triangle iron with a slope and a handle, put it into the original tool relief groove on the main shaft, and then use a hammer to knock the handle of the triangle iron by manpower, and knock the triangle iron into the groove on the main shaft of the drilling machine. Use the slope of the triangle iron to push the drill bit out of the spindle groove. During the whole retraction process, the workpiece is fixed and the drill moves, so the retraction is slow, and the quality of the hole is e...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a device for quickly retracting the tool for workpiece drilling to solve the technical problem in the prior art that the tool retracts slowly and affects the drilling quality.

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