A Topology Optimization Design Method for the Headstock of Machining Center

Abstract

The invention belongs to the technical field of spindle box design, and discloses a topology optimization design method for a spindle box of a machining center. The static stiffness of the original model of the spindle box is analyzed to obtain the static stiffness of the original model of the spindle box; the topology optimization method is used to change the model. The location of the material distribution; use the obtained deformation of the original model as a constraint condition, as a constraint function in the topology optimization design, keep 70% of the original model quality of the headstock as the goal, set up the objective function of the topology optimization process, and carry out topology optimization design; According to the results of topology optimization design, the model is re-established in 3D software. The invention avoids the modification and correction of design errors after the prototype is made in the traditional design process, shortens the research and development cycle, saves design costs, and reduces waste of time, money and labor costs; the invention improves the rigidity of the machine tool and increases the service life.

Description

technical field [0001] The invention belongs to the technical field of headstock design, in particular to a topology optimization design method for a headstock of a machining center. Background technique [0002] Currently, the closest prior art: [0003] Three-axis vertical machining center, its main structural support components include spindle box, slide plate, column, worktable and bed. In order to ensure the position accuracy, workpiece machining accuracy and machine tool life during the operation of the whole machine, high requirements are placed on the moving parts (spindle box and slide plate), combined with the consideration of motion stability in the machine tool structure design, the quality of the moving parts is required It should be as small as possible to reduce the influence of the inertial force and weight of the moving parts on the rigidity of the machine tool support and the whole machine. [0004] Structural optimization refers to allowing the designed ...

AI Technical Summary

Problems solved by technology

[0006] (1) In the existing technology, the headstock involved in the topology optimization for the beam or the topology optimization for the column is large in size and mass, resulting in high cost

[0007] (2) In the design process of the existing technology, the design error is corrected after the prototype is made, and the research and development cycle is long

[0008] (3) The existing technology cannot reduce the "pressure" on the supporting parts such as the column and the bed, resulting in poor rigidity of the machine tool, shortened service life of the machine tool, and low machining accuracy

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