A method of positioning and correcting

Abstract

The application discloses a self-centering device for positioning and alignment, which includes a positioning ball, a taper pin, a screw and a spring washer. hole; the spherical head of the positioning ball, the cone in the middle and the cylinder at the bottom are all coaxial; the cylindrical taper pin is installed in the hole at the bottom of the positioning ball and can be adjusted by a screw; the spring washer is arranged between the screw and the taper pin between. This application can adapt to various clamping methods of parts, realize variable angle clamping, and improve the alignment accuracy by finding the origin of space coordinates; it can be installed based on the hole and orifice plane; the self-centering function can be realized by using interference positioning pins, eliminating the need for coordination Gap influence; using the principle of sphere centering to obtain the coordinates of the center of the sphere, without interference from the clamping method and the position of the part; using the principle of cone surface measurement to obtain the relative coordinates from the center of the sphere, and verify the correctness of the tool specification parameters to be used , which is fast and reliable.

Description

technical field [0001] The application relates to the field of mechanical processing, in particular to the technical field of finding the origin coordinates of numerical control machining and checking the compliance of cutting tool specification parameters. Background technique [0002] The manufacturing process of aeronautical structural parts is complex, with many types of features and a large amount of blank material removal. Driven by high-tech, aviation parts processing technology has entered a new stage of development of "high speed, high efficiency, intelligence, composite, and environmental protection", and high-speed (efficient) cutting, near-net shape, flexible processing, and multi-axis composite processing have emerged. Therefore, for feature-based clamping, such as clamping with initial angles, and the use of complex-shaped blanks to reduce material consumption, improvement requirements have been put forward for the traditional two-hole-one-side alignment techno...

AI Technical Summary

Problems solved by technology

If the self-centering technology is not used, it is likely that the origin of the machining coordinates of the part will shift due to the tolerance of the gap between the two holes

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