Cross beam for viaduct type gantry machining center

Abstract

The invention discloses a cross beam for a viaduct type gantry machining center. The cross beam includes a cross beam body, wherein two sliding block mounting surfaces are arranged on the bottom surface of the cross beam body; the cross beam body is of a bilateral symmetry structure; the two sliding block mounting surfaces are arranged in a bilateral symmetry mode; the front side and the rear sideof the bottom of the cross beam body are respectively provided with two outwards-extending bosses; the front side and the rear side of each sliding block mounting surface correspond to one boss respectively; and the bottom face of each boss is flush with one sliding block mounting surface. The cross beam adopts a modular design, so that the follow-up performance of the cross beam body structure can be improved, and the influence of a heat source on a machine tool is minimized; the cross beam is good in rigidity, low in cost, good in universality, convenient to assemble, capable of effectivelyreducing the overturning moment of the ram part, reducing the torsional deformation of the cross beam body, improving the rigidity of the cross beam and guaranteeing the precision of a machine tool,and capable of being universally applied to viaduct type gantry machining centers applied to different fields such as aerospace, the mold industry and the traditional manufacturing industry.

Description

technical field [0001] The invention relates to a beam of a machining center, in particular to a beam used for a viaduct type gantry machining center. Background technique [0002] In recent years, high-speed cutting has been widely used in my country's mold and tool manufacturing and the processing of complex curved surfaces and thin-walled parts in the aerospace field. With the subdivision of the industry, the machine tool industry needs to continuously introduce products for different industries. For the viaduct-type gantry machining center, in the aerospace field, the machine tool is required to be equipped with a five-axis head, and the requirements for feed, rapid traverse speed and spindle speed are very high; the mold industry requires a five-axis head or a 3+2 swing head. In the field of aerospace, the requirements for feed and speed are not particularly high, but the requirements for the precision and surface quality of the mold are very high; in the traditional m...

AI Technical Summary

Problems solved by technology

Because the beam is not a regular front-to-back symmetrical structure, the center of gravity is biased towards the front side of the beam, and the mass of the ram part is relatively large, so the overturning moment of the ram part (that is, the roll moment of the forward roll) is relatively large, which makes the torsion of the beam Increased deformation, resulting in insufficient beam rigidity

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