Honing Tool Holder Layout to Prevent Workpiece Inclination
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Solution Overview
Problem
In high-speed honing machines, the positions of the driving force exerted by the stator and the frictional resistance between the workpiece and honing tool are offset, leading to potential inclination of the workpiece holder and reduced processing accuracy due to combined gravitational and rotational forces.
Innovation Solution
A honing device with a honing tool, main shaft, rotation driver, axial direction driver, and holder drive unit that aligns the workpiece holder's central axis with the main shaft's rotational axis, ensuring coincident forces and preventing inclination during processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the workpiece holder is driven by a linear motor with the stator arranged vertically, then processing time is reduced due to increased relative speed, but the workpiece holder may become inclined due to offset forces, deteriorating processing accuracy
Solution Approach 1:
The patent transitions from a vertical stator arrangement to a horizontal stator arrangement, changing the spatial dimension of the linear motor configuration. This dimensional change allows the driving force to be applied at a position that aligns with the frictional resistance force, eliminating the offset that causes inclination while maintaining the high-speed vibration capability for reduced processing time
Solution Approach 2:
The patent positions the stator and workpiece holder such that the driving force and frictional resistance force act along the same vertical line, creating a force equilibrium condition. This equipotential arrangement of forces prevents the generation of rotational moments that would cause inclination, thereby maintaining processing accuracy during high-speed operation
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
This configuration enhances processing accuracy by aligning forces and reducing inclination, allowing for increased relative speed and efficiency in honing operations.
Implementation Method 1
a workpiece holder that is driven by a linear motor in such a manner as to vibrate in the vertical up-down direction
Implementation Method 2
a force caused by frictional resistance between the workpiece held by the workpiece holder and the honing tool
Data Source
AI summary
A honing device includes a honing tool, a rotating main shaft to which the honing tool is fixed, an axial direction driver to cause the rotating main shaft to move in the Z-axis direction, a workpiece holder to hold a workpiece while a central axis of a processed hole of the workpiece and the a central axis of the rotating main shaft coincide with each other, and a holder drive unit to, by exerting a driving force on a portion of the workpiece holder corresponding to a point on an extension line of the central axis of the rotating main shaft in a direction along the central axis, cause the workpiece holder to move in a direction along the central axis.