Boring Tool Support Section for Stable Precision Machining
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Solution Overview
Problem
Existing cutting tools for drilling and turning lack stability and precision, particularly when dealing with solid materials, as they often require multiple tools and suffer from reduced flexibility and increased setup times due to inadequate support structures.
Innovation Solution
A cutting tool design featuring a main tool body with a machining section and a support section that provides enhanced stability through a larger cross-sectional area, allowing for secure clamping in tool holders and diversion of lateral forces, along with a recess for cooling lubricant nozzles to prevent interference, ensuring smooth operation and high precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the cutting tool uses a standard cylindrical design without an extended support section, then the tool structure is simpler and easier to manufacture, but the tool lacks stability and precision during machining operations
Solution Approach 1:
The support section extends the tool body in the radial dimension beyond the standard cylindrical shape. This extension creates a larger cross-sectional area that protrudes radially outward to rest against the tool holder, adding dimensional complexity only where needed for stability while keeping the rest of the tool structure simple.
Solution Approach 2:
The tool is divided into distinct functional sections: a standard cylindrical tool shank for clamping, an extended support section for stability and force diversion, and a machining section for cutting operations. This segmentation allows each part to perform its specific function optimally without unnecessary complexity in other areas.
2Manufacturing precision
If the cutting tool lacks an extended support section, then the tool structure is simpler, but lateral forces during machining are not effectively diverted, reducing precision
Solution Approach 1:
The support section creates a radial extension that provides a contact surface perpendicular to the tool axis. This radial dimension allows lateral forces to be diverted to the tool holder through the extended support section, improving precision without requiring complex internal structures.
Solution Approach 2:
The support section acts as an intermediary element between the machining section and the tool shank. It transfers and diverts lateral forces and bending moments from the machining section to the tool holder, preventing these forces from affecting machining precision while maintaining a relatively simple overall structure.
3Ease of operation
If the cutting tool does not have recesses for cooling lubricant nozzles, then the tool structure is simpler, but the nozzles interfere with the support section, preventing proper clamping and operation
Solution Approach 1:
Recesses are created in the support section to extract or accommodate the cooling lubricant nozzles. This allows the nozzles to be positioned within the extended support section rather than having them protrude outward and interfere with clamping, enabling proper tool operation while maintaining the benefits of the extended support structure.
Solution Approach 2:
The cooling lubricant nozzles are nested within recesses of the support section. This nesting arrangement allows the nozzles to be integrated into the extended support structure without increasing the overall tool envelope or interfering with the clamping interface, maintaining simplicity while enabling proper operation.
Data Source
Figure 1
Figure 2a~2c
Figure 3~4
AI summary
The invention relates to a cutting tool for boring into solid material and rotating, comprising a tool main part (4, 6, 10), said tool main part having: a machining portion (10) with a receiving area for a replaceable cutting plate (12), a tool shaft (4) which is designed to be received in a tool receiving area, and a support portion (6) between the machining portion (10) and the tool shaft (4), wherein the cross-section of the support portion (6) is greater than the cross-section of the tool shaft (4), and the support portion (6) is designed to lie against an end face (28a, 28b) of a tool receiving area (20, 22). The support portion (6) has at least one cut-out portion (8a, 8b), preferably at least two cut-out portions.