Honing Machine Inner Outer Surface Processing
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Solution Overview
Problem
Conventional honing machines are limited in their ability to simultaneously or sequentially machine both the inner and outer surfaces of workpieces, particularly thin-walled pipes, with existing machines either being exclusive to outer honing or requiring retrofitting for inner honing.
Innovation Solution
A honing machine design featuring a spindle unit with a stroke drive for inner honing and a clamping unit with a rotary drive, allowing for simultaneous or sequential inner and outer honing processes, with the outer honing device movable relative to the workpiece and honing stones arranged opposite each other to prevent elastic deformations, and utilizing a Cardan suspension for precise adaptation to the workpiece surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional honing machine is designed exclusively for outer honing, then the machine structure is simple and easy to operate, but it cannot perform inner honing without retrofitting
Solution Approach 1:
The honing machine is designed with universal functionality to perform both inner honing and outer honing operations. The machine tool can be configured with different honing tools (inner honing tool mounted on spindle unit, outer honing tool on carriage) and the clamping unit can adaptively hold different workpiece types, enabling a single machine to replace multiple specialized machines.
2Productivity
If inner honing and outer honing are performed sequentially on conventional machines, then the machine structure remains simple, but production time increases
Solution Approach 1:
The machine combines both inner honing and outer honing capabilities into a single integrated system. The inner honing tool and outer honing tool can operate simultaneously on the same workpiece, merging two separate machining processes into one coordinated operation, thereby doubling productivity without requiring two separate machines.
3Productivity
If the honing machine allows simultaneous inner and outer honing, then material removal efficiency increases, but the control system becomes more complex
Solution Approach 1:
The control system incorporates feedback mechanisms to coordinate the simultaneous operation of the inner honing tool and outer honing tool. The control unit monitors and adjusts the parameters of both tools to ensure they work in harmony, maintaining proper synchronization and force balance, which simplifies the control complexity while achieving high material removal efficiency.
4Manufacturing precision
If honing stones are applied to thin-walled pipes, then the inner and outer surfaces can be machined, but elastic deformations occur
Solution Approach 1:
The machine applies preliminary counteracting forces through the coordinated action of inner and outer honing tools. By applying opposing forces simultaneously from both sides of the thin-walled pipe, the system prevents elastic deformations that would otherwise occur during honing, maintaining dimensional stability and surface finish quality throughout the machining process.
Data Source
AI summary
A honing machine has at least one clamping unit that clamps a workpiece and has a rotary drive for the workpiece. A spindle unit has a stroke drive for an inner honing tool for inner honing of the workpiece. An outer honing device that is movable relative to the workpiece in an axial direction of the workpiece is provided. The outer honing device has several honing stones and an advancing device acting on the honing stones. The honing stones each are advanced in a radial direction relative to the workpiece. The advancing device has at least one linear drive for each one of the honing stones and a common drive motor for all of the linear drives.