Chuck wrench

Abstract

The invention relates to a chuck wrench. The chuck wrench comprises jaws, an adjusting bolt, a locking nut, rivets, a jaw base, an adjusting nut and a handle. The chuck wrench is characterized in thatthe two jaws are connected with the jaw base through the rivets and can be rotated freely and flexibly, a threaded hole is formed in the middle of the jaw base and connected with the adjusting bolt,the adjusting bolt is provided with the locking nut, two sections of threads are arranged at the lower end of the jaw base, one section is connected with the adjusting nut, a chamfer is arranged at the top end of the adjusting nut, when the adjusting nut is rotated upward, the opening degree of the jaws is increased under pushing of the chamfer face of the adjusting nut, when the adjusting nut isrotated downward, the opening of the jaws is decreased, the other section of threads is connected with the handle, an operator rotates the adjusting nut to adjust the opening size of the jaws in use,after a cutter body nut groove is clamped, the adjusting bolt is adjusted to abut against the outer circle of a cutter body nut, then the locking nut is locked, three fulcrums are formed, clamping isfirm, the chuck wrench clamps more firmly than a hook wrench, the handle is rotated, the nuts are more convenient to assemble and disassemble, and the chuck wrench is suitable for assembling and disassembling of any sizes of cutter body nuts.

Description

technical field [0001] The invention relates to the technical field of manual hardware tools, in particular to a multi-purpose manual tool wrench used for high-grade numerical control processing machine tools. Background technique [0002] At present, there are many series of CNC high-end machine tool bodies commonly used, including American ER, BPS, NBN and Chinese LN series. The tool body collet nut loading and unloading requires hook wrenches of different specifications, and the existing hook wrenches consist of two hooks. Composition, there are phenomena such as small contact surface, uneven force, easy to fall off, etc., there are certain safety hazards, and each type of cutter body nut can only use the hook wrench of the corresponding specification. The use of multiple tools on a CNC machine tool is not conducive to safety, lean production and 6S on-site setting management. Moreover, changing tools when changing the tool body is time-consuming and laborious, which adds...

AI Technical Summary

Problems solved by technology

[0002] At present, there are many series of CNC high-end machine tool bodies commonly used, including American ER, BPS, NBN and Chinese LN series. The tool body collet nut loading and unloading requires hook wrenches of different specifications, and the existing hook wrenches consist of two hooks. Composition, there are phenomena such as small contact surface, uneven force, easy to fall off, etc., there are certain safety hazards, and each type of cutter body nut can only be used with a hook wrench of the corresponding specification

The use of multiple tools on a CNC machine tool is not conducive to safety, lean production and 6S on-site setting management. Moreover, changing tools when changing the tool body is time-consuming and laborious, which adds additional time to actual production and affects work efficiency.

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