Pulse retract drill

Abstract

The invention relates to a machining tool, in particular to a pulse withdrawal type drilling tool. The pulse withdrawal type drilling tool comprises a bracket, wherein the bracket is rotationally connected with a main shaft; the main shaft is coated with a driving bevel gear; a driving disc is arranged on the bracket, and is rotationally connected with the bracket through a rotating shaft; driving teeth are arranged at the edge of the driving disc, and are engaged with the bevel gear; a clutch mechanism is arranged on the rotating shaft; a reverse rotating mechanism is arranged between the rotating shaft and the driving bevel gear; a section of pulse projection is arranged on the end surface, near the driving bevel gear, of the bracket; a pulse convex block is arranged on the end surface, near the bracket, of the driving bevel gear; an oil storage cavity is formed in a shoulder ejecting rod; an oil dripping hole is formed in one end, near the bracket, of the shoulder ejecting rod; and an oil sealing projection for blocking the oil dripping hole is arranged at one end, near the shoulder ejecting rod, of the bracket. The pulse withdrawal type drilling tool has such beneficial effects as capability of realizing the reverse rotating tool withdrawal with pulse frequency, no need of changing the hand shaking direction and keeping of stable hand shaking speed.

Description

technical field [0001] The invention relates to a processing tool, in particular to a pulse retracting drill. 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 clockwise to drill holes....

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.

Images