Orthogonal double turntable base rotatable numerical control fixture system and its control method

Abstract

The invention discloses an orthogonal double rotating base rotatable NC clamping system comprising a first rotating shaft with a first rotational degree of freedom, a second rotating shaft with a second rotational degree of freedom, a third rotating shaft with a third rotational degree of freedom, and a clamper. The first rotating shaft connects to a machine table, the second rotating shaft connect to the first rotating shaft, the third rotating shaft connects to the second rotating shaft, the clamper connects to the third rotating shaft. Meanwhile, the invention discloses a control method forthe orthogonal double rotating base rotatable NC clamping system. A large number of features of multi-axial positioning machining on a three-axial machine table or other multi-axial machining apparatus can be realized through the orthogonal double rotating base rotatable NC clamping system, particularly the complicated characteristics, low cost, high precision, and multi- degree of freedom control NC processing system, the workpiece shape and the finishing processing have the characteristics of general adaptability and extensibility, dimensional orientation between rotating shaft in orthogonal mode clamping system achieve form diversity, flexibility, and Multiple applications adaptable.

Description

technical field [0001] The invention relates to a numerically controlled fixture device, in particular to a numerically controlled fixture system suitable for calibrating and controlling the position and posture of a multi-degree-of-freedom workpiece on a three-axis or multi-axis numerically controlled machine tool and a control method thereof, belonging to the technical field of numerically controlled machining. Background technique [0002] Computer digital control, referred to as numerical control (Numerical Control), is a method of controlling the process of machining motion by using digital information. CNC machining is a key technology in the modern manufacturing field. The machine tool fixture is a device used to clamp the workpiece and guide the tool on the machine tool. It is in contact with the positioning reference of the workpiece to determine the correct position of the workpiece in the fixture, so as to ensure the workpiece The relative correct position between...

AI Technical Summary

Problems solved by technology

[0003] At present, three-axis CNC machining can realize the processing of complex features within a certain range, but the processing capacity is limited. For some corner features and front coverage areas, it is necessary to adjust the relative attitude between the tool and the processing object in special applications. Three-axis CNC machining App is restricted

In addition, when three-axis CNC machining certain types of typical features (such as inclined planes, bosses, grooves, inclined holes, etc.), it is difficult to guarantee the machining accuracy, and it is difficult to ensure the high-quality surface quality of residual materials between layers; at the same time, after clamping the workpiece Correction of pose and posture, manual participation in tool setting operation is relatively large, auxiliary work of rectangular workpiece processing is time-consuming, auxiliary processes such as clamping and tool setting in CNC machining process take up a large proportion of time, and machining accuracy is limited by accurate clamping sex has a greater impact

In addition, there is currently a lack of elaboration in the industry on the digitalization and intelligence of multi-degree-of-freedom rotary clamping and positioning and the expansion of the processing range of CNC machine tools.

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