Arbitrary-radian outer circle grinding process equipment

Abstract

The invention belongs to the field of machining, and particularly relates to equipment applied to vertical machining center grinding machining for machining a special-shaped part and outer circles ofany radian. The equipment is composed of a hexagon socket cap screw, locating pins, a small pressing plate, a large pressing plate and a grinding wheel; the equipment is characterized in that a workpiece is positioned and fixed on a bottom plate through the locating pins, the small pressing plate and the large pressing plate; the workpiece is connected with a numerical control rotary table throughthe bottom plate, and the outer circle axis of the workpiece is ensured to coincide with the rotation center of a rotating table; in the machining process, the rotating table drives the workpiece todo reciprocating rotation motion, and the rotation radian is equal to the radian of the machined outer circle; and meanwhile, a machine tool spindle drives the grinding wheel to rotate at a high speedto serve as main cutting motion, and grinding machining of the outer circle of the incomplete radian is achieved through the combined motion of the main cutting motion and the reciprocating rotationmotion of the numerical control rotary table; and in conclusion, the equipment is convenient, stable and reliable to use and high in working efficiency, the labor intensity of workers is reduced, andthe machining quality is greatly improved.

Description

technical field [0001] The invention belongs to the mechanical processing industry, and is specifically applied to the grinding process of a vertical machining center for processing a special-shaped part and other arbitrary arc outer circles, and can realize vertical grinding of large and complex workpieces. The used arbitrary arc Cylindrical grinding process equipment. Background technique [0002] The existing ordinary grinding machine can only grind the outer circle of rotary parts, and the machining center can realize the milling of the outer circle of any radian, but it is limited by the repeated positioning accuracy of the machine tool and the rigidity of the tool, so it is difficult to meet the high precision and roughness requirements. , For example, the outer circle of the small end of a special-shaped part requires dimensional accuracy of 0.029, cylindricity of 0.014, and roughness of Ra0.8, which requires grinding to ensure accuracy. Because its outer circle is a...

AI Technical Summary

Problems solved by technology

[0002] The existing ordinary grinding machine can only grind the outer circle of rotary parts, and the machining center can realize the outer circle milling of any radian, but it is limited by the repeated positioning accuracy of the machine tool and the rigidity of the tool, so it is difficult to meet the dimensional requirements of high precision and roughness For example, the outer circle of the small end of a special-shaped part requires dimensional accuracy of 0.029, cylindricity of 0.014, and roughness of Ra0.8, which requires grinding to ensure accuracy

Because the outer circle is a 3 / 4 arc surface, it is not a complete cylindrical structure, so it cannot be processed by a conventional cylindrical grinder

However, the CNC milling commonly used to process this structure is difficult to meet the accuracy requirements of the workpiece.

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