Improved additional shaft gripper mechanism

Abstract

The present invention provides an improved additional shaft clamping mechanism which comprises a main shaft and a clamped object that is installed at the outer end of main shaft with a curved tooth positioning group. Furthermore a clamping mechanism is installed between the main shaft end side and the curved tooth positioning group. The clamping mechanism is composed of a power source, a driving piece, a plurality of movable clamping jaws, etc. The clamping mechanism is mainly used for causing that the driving piece can displace along with the action of power source. The movable clamping jawsare installed between the driving piece and the curved tooth positioning group. Each movable clamping jaw bears the elastic pulling of one elastic unit thereby executing corresponding elastic displacement along with the running distance displacement of driving piece. When the power source acts, the movable clamping jaws can execute the clamping action or the action of breaking away from the curvedtooth positioning group. The action of combination between the main shaft and the clamped object is more quickly, accurately and stably.

Description

technical field [0001] The invention relates to a numerically controlled machining machine, in particular to an improvement of a clamping mechanism applied to a numerically controlled machining machine whose cutting spindle is combined with an additional head. Background technique [0002] With the vigorous development of industrial machinery, digitally controlled processing machines have become an important machine tool for precision machining at present. On the other hand, the general CNC machining machine can only perform vertical machining operations on the workpiece due to the vertical structure of the cutting spindle. Use the described additional head for lateral or angular cutting operations. [0003] However, it can be known from the prior art that when the traditional additional head is used or disassembled, it is achieved manually, which is not only inconvenient but also time-consuming and labor-intensive. Thus, the creation of additional header assemblies is acc...

AI Technical Summary

Problems solved by technology

[0005] The joint configuration between the main shaft and the additional head described in the above prior art is a hook-and-pull structure, that is, the fastening block uses its outer hook to engage with the protruding portion of the additional head for positioning. Although such a combination structure can still achieve the action of automatically combining and positioning the additional head of the main shaft, because the additional head is combined with the overall support on the main shaft, only the fastening block is used to hold the locking block. In the case of continuous high-speed cutting and rotation of the internal spindle, not only will there be instability and shaking, but it will also affect the stability of the positioning and meshing between the curved tooth couplings, which will inevitably have a negative impact on precision machining. , and there is a need to improve

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