Clamping mechanism of clamp of machine tool

Abstract

The invention relates to a clamping mechanism of a clamp of a machine tool. The clamping mechanism is used for clamping a workpiece and comprises a driving device, a transmission rod, an ejection rod, a rotating rod, a push rod and an execution rod, wherein the driving device is fixedly arranged in the mechanism; one end of the transmission rod is in transmission connection with the driving device, and the other end of the transmission rod is movably connected with the ejection rod; one end of the rotating rod is movably connected with the mechanism, and the other end of the rotating rod is movably connected with the ejection rod and the push rod; the other end of the push rod is movably connected with the execution rod; the middle part of the execution rod is movably connected with the mechanism through a supporting point; and the front end of the execution rod is provided with a clamping element for clamping the workpiece. Compared with the prior art, the layout mode of the driving device of the conventional six-link hinge clamping mechanism is changed; a swing cylinder is changed into a fixed cylinder; the number of hinges used on the mechanism is not increased; and therefore, the size of the clamp is reduced, the structure is more compact, and the limitation in mounting or use brought by insufficient swing space of the driving device can be made up.

Description

technical field [0001] The invention relates to a clamping mechanism, in particular to a clamping mechanism of a machine tool fixture. Background technique [0002] When machining workpieces on metal cutting machine tools, fixtures must be used to install the workpieces in order to position and clamp the workpieces. Positioning is to make the workpiece have a correct position relative to the tool on the machine tool. Clamping is to fix the workpiece after positioning, so that it can maintain the correct position determined during positioning during processing, so that qualified parts that meet the requirements can be processed. Component. Therefore, the clamp has two main components: the positioning element and the clamping device, and the clamping device can generally be divided into two parts: the power device and the clamping mechanism. The power device is the power source that generates the clamping force. The power source can come from pneumatic, hydraulic and electri...

AI Technical Summary

Problems solved by technology

This kind of mechanism has a large volume, and the oil (air) cylinder is a swing design, so the installation or use of the fixture is often limited due to the insufficient swing space of the oil cylinder.

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