Gyroscope type self-locking drill chuck

Abstract

The invention relates to the mechanical processing field, in particular to a whirligig type self locking drill chuck head. The drill chuck head is provided with the whirligig type chuck head body with a front end body section and a wheeled model rear cover with a rear end body section and a concave gyrating air flow diversion trench between the both, a claw is vertical to a principle axis and arranged presenting a cone, the chuck head body of the claw is formed by an axle sleeve and a chuck head casing body assembling an iron ball group, a holding hole principal axis, a claw adjusting bolt, a ring-shaped cone guide track and the claw in the chuck head casing body in sequence, the mechanical principle that principal axis drives the claw adjusting bolt and vertically pushes the claw to be tightly locked along the principal axis is used, when performing the drilling or churn drilling work, the twisting force is more larger, and the automatic locking force is more larger, thereby the stable and tight drill head is ensured. For many years, the common structure of the drilling and drawing head is seen, a key is used to screw up the drill head or an inclined type claw self-locking type drill chuck head, when the locking force is not enough, the drill head rotates in the drill chuck head, the drill head is easy to be wore or a working part is wore. The invention has the advantages that the usage is convenient, the structure is compact, the invention can be widely used for updating technical equipments such as millions set of machine tools, drilling machines, bench drilling machines, electric hand drills and churn drills, and has wide foreground.

Description

1. Technical field [0001] The invention relates to the field of mechanical processing, in particular to a gyro-type self-locking drill chuck. 2. Background technology [0002] At home and abroad, the common structure of drill chucks of machine tools, drilling machines, bench drills, hand drills, and impact drills seen for decades is mostly gear key fastening drill chucks / or oblique self-locking drill jaws , Use the gear key to fasten the afterburner lock or the card bolt. Sometimes the lock is not enough, and the drill bit will rotate in the drill chuck, which is easy to wear the drill bit or the workpiece, and the drilling accuracy is also poor. At present, there is no gyroscopic self-locking drill chuck that is simple in structure, easy to install, and high in precision by driving the adjusting screw rod through the main shaft of the hole to vertically push the claws to lock the drill bit along the main axis. 3. Contents of the invention [0003] The purpose of the pres...

AI Technical Summary

Problems solved by technology

[0002] At home and abroad, the common structure of drill chucks of machine tools, drilling machines, bench drills, hand drills, and impact drills seen for decades is mostly gear key fastening drill chucks / or oblique self-locking drill jaws , Use the gear key to fasten the force lock or the card bolt. Sometimes the lock is not enough, the drill bit will rotate in the drill chuck, which is easy to wear the drill bit or the workpiece, and the drilling accuracy is also poor.

At present, there is no gyro-type self-locking drill chuck with simple structure, convenient installation and high precision, which is driven by the main shaft of the bore hole to drive the adjusting screw to vertically push the claws to lock the drill bit along the main axis.

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