Multifunctional impulse retracting hand drill

Abstract

The invention relates to a processing tool, in particular to a multifunctional impulse retracting hand drill. The multifunctional impulse retracting hand drill comprises a support, wherein the support is rotationally connected with a main shaft; the main shaft is sleeved with a driving bevel gear; a driving disk is arranged on the support, and is rotationally connected with the support by a rotating shaft; driving teeth are arranged at the edge of the driving disk, and are engaged with the driving bevel gear; a clutch mechanism is arranged at the rotating shaft; a reverse rotating mechanism is arranged between the rotating shaft and the driving bevel gear; an impulse bulge is arranged on the end face, close to the driving bevel gear, of the support; an impulse convex block is arranged on the end face, close to the support, of the driving bevel gear; a driven shaft is fixedly connected with a burr polishing wheel; a containing cavity containing a polishing wheel is arranged at one end, close to the support, of a shoulder sustaining rod; and the shoulder sustaining rod is in threaded connection with the support. The multifunctional impulse retracting hand drill has the benefits that the multifunctional impulse retracting hand drill can realize reverse retracting at an impulse frequency without changing the hand-operated direction, and ensures that a hand-operated velocity is stable.

Description

technical field [0001] The invention relates to a processing tool, in particular to a hand drill with multifunctional pulse retraction. Background technique [0002] In an existing type of manual drilling tool, by shaking the drive disc, the drive teeth on the drive disc are used to drive the main shaft to rotate, and then the drill bit is driven to rotate to realize drilling. Waste chips are generated during the drilling process, and the waste chips are easy to block the drill bit. It is necessary to reverse the drill bit to retract the tool to discharge the waste chips out of the hole, and then continue drilling. However, when this type of manual drilling tool needs to reverse the drill bit to retract the tool and remove chips, the drill bit can only be reversed by shaking the drive disc in reverse. That is to say, the drive disk needs to rotate clockwise several times to drill holes, then counterclockwise several times to retract the tool to remove chips, and then rotate...

AI Technical Summary

Problems solved by technology

During the drilling process, it is necessary to change the direction of the drive disc repeatedly, and the driving force of the hand drill comes from the human arm muscles. Frequent changes in the direction of the hand will result in different directions of force applied to the arm muscles and joints, which will easily cause the hand drill to deflect.

Moreover, the frequent changes of hand-cranking movements make the muscles unable to form muscle memory, resulting in unstable hand-cranking speed and affecting the quality and efficiency of drilling.

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