Machining Tool Central Clamping Device for Cutting Insert Orientation

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Solution Overview

Problem

Existing machining tools require significant manual effort and high production costs to precisely orient and adjust cutting inserts, leading to uneven wear and increased production expenses due to the need for individual adjustments and tight tolerances.

Innovation Solution

A central clamping device secures cutting inserts in an oriented position relative to the tool's parent body, allowing for simultaneous clamping and precise orientation of multiple inserts, reducing production costs and effort by using standard tolerances and eliminating the need for individual adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If individual manual adjustment of each cutting insert is performed, then precise orientation of cutting inserts is achieved, but significant manual effort and time are required

Engineering Contradiction:
Improveorientation precision of cutting insertsVSAvoidadjustment time per cutting insert
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

Multiple individual adjustment operations are merged into a single collective operation. The patent employs a common adjustment mechanism that simultaneously adjusts all cutting inserts relative to the parent body in one operation, rather than requiring separate adjustment of each insert individually. This merging of operations dramatically reduces the total time and effort required while maintaining precise orientation of all inserts.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

A single adjustment mechanism serves multiple functions by simultaneously adjusting all cutting inserts. The patent designs a universal adjustment system that can orient multiple cutting inserts relative to the parent body through one operation, making the adjustment process more efficient and reducing the need for multiple individual adjustment operations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Manufacturing precision

If tight tolerances are maintained during production of cutting inserts and parent body, then precise orientation is achieved, but very high production outlay and costs are required

Engineering Contradiction:
Improveorientation precision of cutting insertsVSAvoidproduction cost
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent changes the approach from controlling orientation through tight manufacturing tolerances to controlling orientation through a mechanical adjustment mechanism. Instead of requiring cutting inserts and parent body to be manufactured with very tight tolerances, the invention provides a post-manufacturing adjustment capability that achieves precise orientation through mechanical means, thereby reducing production costs while maintaining precision.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces an intermediary adjustment mechanism between the cutting inserts and the parent body. This intermediary system allows for precise orientation adjustment without requiring the cutting inserts or parent body to be manufactured with extremely tight tolerances. The adjustment mechanism serves as a mediator that compensates for normal manufacturing tolerances and achieves the desired precision.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If multiple cutting inserts are attached to a single holder, then the tool structure is simplified, but complicated manual adjustment must be carried out

Engineering Contradiction:
Improvetool structureVSAvoidadjustment effort
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The patent merges the adjustment operations for multiple cutting inserts into a single collective operation. Even when multiple inserts are attached to a single holder, the invention provides a common adjustment mechanism that simultaneously adjusts all inserts on the holder, rather than requiring separate adjustment of each insert. This maintains the structural simplification benefits while eliminating the complicated individual adjustment effort.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS8894331B2Tool for machining and method for orienting cutting inserts in such a tool
Publication Date: 2014.11.25 KENNAMETAL INC
  • US8894331B2 patent drawing
  • US8894331B2 patent drawing
  • US8894331B2 patent drawing

AI summary

A tool includes a parent body (12) and at least two cutting inserts (14) fastened directly or indirectly to the parent body (12). A central clamping device (30) is configured to clamp the cutting inserts (14) in an oriented position relative to the parent body (12). An assembly includes the tool (10) and a jig (32), which can accommodate the tool (10) in such a way that the cutting insert (14) is located in a desired position on the tool (10) and can be clamped in the desired position by actuating the clamping device (30). A method for fastening at least one cutting insert (14) to the parent body (12) includes fitting the parent body (12) with the cutting insert (14); arranging the parent body (12) in a jig (32); bringing the cutting insert (14) into a desired position; and clamping the cutting insert (14) in the desired position.