Light-weight machine tool transverse beam with reinforced arched rib plate

Abstract

The invention discloses a light-weight machine tool transverse beam with a reinforced arched rib plate. The reinforced arched rib plate is used inside the transverse beam, a plurality of longitudinal partition plates are symmetrically distributed with the middle surface of the transverse beam as the reference, and the section of the transverse beam is a rectangular section. The light-weight machine tool transverse beam with the reinforced arched rib plate solves the problem that due to a common reinforced rib plate inside a transverse beam, the rigidity is constant, and materials are redundant, rigidity of the middle of the transverse beam is improved, the dynamic characteristic of the transverse beam is improved, the weight of the transverse beam is reduced, and the light weight design is achieved. Due to the fact that the widely-used rectangular section is adopted for the section of the transverse beam, the transverse beam is simple in structure, and can be conveniently assembled with parts such as stand columns, carriages and the like.

Description

technical field [0001] The invention belongs to the technical field of machine tools, and in particular relates to a light-weight machine tool crossbeam reinforced with arch ribs. Background technique [0002] The beam is an important basic component of the gantry machine tool, on which components such as the carriage and the headstock are connected. For large gantry machine tools, the size and span of the crossbeam are very large. Since the crossbeam is generally made of cast iron, its own weight is also very large, which can reach as many as several tons. The weight of the components such as the slide frame and the headstock connected to it is also very heavy. The total weight of the entire beam and the components connected to it can reach as much as tens of tons. Therefore, the beam is a basic component with a large load. The performance of the entire machine tool is greatly affected. On the one hand, due to its own weight and the weight of the parts connected to it, th...

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Problems solved by technology

Common forms of stiffeners include cross-shaped ribs, herringbone ribs, and rice-shaped ribs. These types of ribbed ribs can improve the overall stiffness of the beam, but there are two main problems: one is that no matter what type of rib The ribs are evenly distributed inside the beam, and the stiffness in the entire cross-section of the beam is the same, which does not conform to the force characteristics of the beam; secondly, because the ribs are evenly distributed inside the beam, resulting in tension at the supports at both ends of the beam Rib material is "redundant", which increases the total weight of the beam and reduces the dynamic response of the beam, which in turn affects the dynamic characteristics of the entire machine tool

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