Replaceable Cutting Tool Head With Orthogonal Side-Mounted Insert
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Solution Overview
Problem
Conventional cutting tools require complex procedures and increased work hours for replacing cutting members due to their enlarged and non-separable structures, complicating operations and reducing productivity.
Innovation Solution
A head-replaceable cutting tool design with a simplified and downsized head structure, featuring a mounting hole orthogonal to the fastening direction, internal screw holes, and oil passages, allowing easy mounting and replacement of cutting members without interfering with the workpiece or adjacent tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the holder leading end part is formed integrally with the holder body part to create an L-shaped structure for holding the cutting member, then the cutting member can be securely held, but the overall structure becomes enlarged and complicated, making it difficult to replace the cutting member inside the automatic lathe and requiring the entire bite to be removed from the tool rest
Solution Approach 1:
The head is divided into separable components: a head body and a cutting member that can be independently mounted and replaced. The mounting hole allows the cutting member to be attached to the head body, creating a modular structure where the cutting member can be replaced without removing the entire head from the tool rest.
Solution Approach 2:
The mounting hole is configured with its central axis orthogonal to the fastening direction, creating a perpendicular mounting dimension. This orthogonal arrangement allows the cutting member to be mounted in a direction perpendicular to the head's main axis, enabling compact integration and easy replacement from the side without interfering with the workpiece or requiring removal of the entire head.
2Ease of manufacture
If the holder leading end part is formed into an L-shape to hold the cutting member, then the cutting member can be mounted, but the enlarged structure creates interference with the workpiece and adjacent cutting tools
Solution Approach 1:
The mounting hole's central axis is arranged orthogonal to the fastening direction, utilizing a perpendicular dimension for mounting the cutting member. This orthogonal configuration allows the cutting member to be mounted sideways rather than extending in the main axis direction, significantly reducing the head's footprint and eliminating interference with the workpiece and adjacent tools.
Solution Approach 2:
The cutting member is nested within the head structure through the mounting hole, with the screw hole providing internal fastening. This nested arrangement integrates the cutting member compactly within the head's volume rather than extending outward, minimizing the overall head size and eliminating spatial interference.
3Ease of repair
If the entire bite must be removed from the tool rest to replace the cutting member, then the cutting member can be replaced, but work procedures become complicated and work hours increase
Solution Approach 1:
The cutting member is segmented as a separate replaceable component from the head body. The mounting hole and screw hole provide independent access and fastening mechanisms that allow the cutting member to be replaced without disturbing the head's attachment to the tool rest, enabling quick replacement from the side during operation.
Solution Approach 2:
The screw hole acts as an intermediary fastening mechanism that secures the cutting member to the head body. This intermediate fastening system allows the cutting member to be easily attached and detached through the screw, facilitating quick replacement without complex procedures or removal of the entire head assembly.
Data Source
AI summary
To provide a head capable of preventing complications of work procedures and increase in work hours to improve productivity by configuring a head-replaceable cutting tool for machining a workpiece. A cutting tool is a head-replaceable cutting tool having a shank and machining a workpiece, wherein a head comprises a mounting portion mounted to the shank, and a mounting hole to which a substantially rod-shaped cutting member is mounted. A central axis of the mounting hole is orthogonal to a fastening direction in which the head is fastened to the shank.