Self-Rotating Machine Tool Center for Workpiece Coaxiality
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Solution Overview
Problem
Existing machine tool centers fail to maintain machining accuracy due to radial runout of workpieces under radial forces during machining, as the center cannot adaptively rotate for fine adjustment.
Innovation Solution
A machine tool center structure with a self-rotating center head mounted on a center base, featuring a detachable connection, a positioning and mounting structure, and a wear-resistant sleeve or bearing to allow adaptive rotation and maintain coaxiality with the workpiece.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the center is fixed relative to the center base, then the structure is simple and stable, but the workpiece is prone to radial runout and machining accuracy is reduced
Solution Approach 1:
The center head is designed to rotate adaptively with the workpiece instead of being fixed, allowing dynamic adjustment to compensate for radial runout. This dynamic capability enables the center to maintain coaxiality with the workpiece axis during machining, thereby improving machining accuracy without requiring complex active control systems.
Solution Approach 2:
The center head automatically rotates in response to workpiece rotation and radial forces, providing self-adjustment capability. This self-service mechanism eliminates the need for external control systems or complex adjustment mechanisms, resolving the contradiction between improved accuracy and device complexity.
2Manufacturing precision
If the center cannot rotate adaptively, then the structure is simple, but the workpiece radial runout increases under radial forces
Solution Approach 1:
The center head is designed with rotational freedom to adapt dynamically to workpiece rotation and radial forces. This dynamic design allows the center to automatically maintain coaxiality with the workpiece axis, improving workpiece coaxiality while requiring minimal operational intervention.
Solution Approach 2:
The adaptive rotation mechanism enables the center to self-adjust to workpiece variations without requiring manual intervention or complex adjustment procedures, thereby improving both coaxiality and ease of operation.
3Adaptability or versatility
If the center head is detachably connected, then the adaptability and maintenance are improved, but the mounting complexity increases
Solution Approach 1:
The center head is designed as a detachable, separable component from the center base, allowing independent replacement and maintenance. This segmentation enables flexible adaptation to different workpiece requirements while using a standardized mounting interface that minimizes mounting complexity.
Solution Approach 2:
The detachable connection design with standardized mounting structures allows the same center base to accommodate different center head configurations, improving adaptability while maintaining consistent, simple mounting procedures through universal interface design.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances machining accuracy by allowing the center head to rotate with the workpiece, adapting to radial forces and maintaining coaxiality, thereby improving the precision of machining operations.
Implementation Method 1
a bearing is provided at an outer side of the connecting body, and an outer surface of the bearing abuts against an inner surface of the accommodating groove
Data Source
Figure 1
AI summary
The disclosure provides a machine tool center structure, and belongs to the technical field of machine tool equipment. The disclosure solves the problem of reduced machining accuracy resulting from inability of existing machine tool centers to rotate. The machine tool center structure includes a center base, where the center base is provided with a center head capable of self-rotating circumferentially relative to the center base, one end of the center head is mounted in the center base in a limiting manner, and the other end of the center head is located outside the center base for abutting against a workpiece. The disclosure has the advantage of improving machining accuracy of workpieces.