Rapid self-centering clamping device for large-sized bearing ring workpiece

Abstract

The invention discloses a rapid self-centering clamping device for a large-sized bearing ring workpiece. The rapid self-centering clamping device for the large-sized bearing ring workpiece comprises an underframe, a support table, a centering mechanism, a positioning and clamping mechanism and a pressing mechanism. According to the rapid self-centering clamping device for the large-sized bearing ring workpiece provided by the invention, through the centering mechanism, the bearing ring workpiece can be quickly centered and preliminarily clamped; six positioning claws of the positioning and clamping mechanism are uniformly clamped in six directions of the workpiece, and the workpiece is uniformly stressed by adopting a synchronous coaction and single-step fine adjustment manner, so that theworkpiece is positioned and clamped in the horizontal direction; through three pressing clamping jaws of the pressing mechanism, the workpiece is finally pressed and fixed in the perpendicular direction; through the actions from the centering mechanism to the positioning and clamping mechanism and then to the pressing mechanism, the accurate position of the workpiece during processing can be effectively ensured; through the application of the servo motor, the clamping precision is remarkably improved; and in addition, the rapid self-centering clamping device for the large-sized bearing ring workpiece provided by the invention is compact in overall structure, convenient to install, stable and reliable in performance, high in repeated positioning accuracy, and capable of greatly reducing the labor intensity of operating workers and improving the working efficiency.

Description

technical field [0001] The invention relates to the technical field of mechanical fixtures, in particular to a fast self-centering clamping device for large bearing ring workpieces. Background technique [0002] Bearings are commonly used parts in mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. The bearing ring is an important part of the bearing, and its role is very important. Due to the wide variety of bearings, the size, structure, manufacturing equipment, and process methods of different types of bearings are different. There are many processing procedures, complex processes and high machining accuracy requirements for the ring, so the quality of the clamping and processing of the bearing ring has an important impact on the accuracy, service life and performance of the bearing. [0003] However, for the clamping of large and medium-sized bearing ri...

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Problems solved by technology

[0003] However, for the clamping of large and medium-sized bearing ring workpieces, in the existing technology of most factories, the workpiece is usually fixed on the workbench with a pressure plate, and then the center of the workpiece is manually gradually adjusted using auxiliary tools such as measuring instruments. This kind of workpiece clamping method, every time the workpiece is clamped, the machining center of the workpiece needs to be corrected. It takes a lot of time to clamp and correct the machining center of the workpiece every time, the work efficiency is low, the labor intensity of the operator is high, and the processing of the workpiece The accuracy of center correction is closely related to the experience and technical level of the operator, so the machining accuracy of the workpiece must be affected by the experience and technical level of the operator and cannot be effectively guaranteed

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