Direct Clamping Tool Holder with Integrated Coolant Delivery
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Solution Overview
Problem
Existing tool systems fail to provide a secure and rigid attachment of cutting tools to holders, especially during high metal removal rate machining operations, and inadequately supply cooling lubricants to the critical work area.
Innovation Solution
A tool system with a holder featuring a fluid space in direct contact with the cutting tool's fixing part, connected to a cooling lubricant supply, ensuring direct lubricant delivery to the cutting edge through a channel, and a clamping mechanism that secures the tool with reduced load torque via a projecting support part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an adapter is used as an intermediate holder to clamp the cutting tool, then the cutting tool can be secured to the holder, but the design becomes more complex and the rigidity of the attachment is reduced
Solution Approach 1:
The patent removes the intermediate adapter from the tool system, allowing the cutting tool to be clamped directly to the holder. This extraction of the unnecessary intermediate component simplifies the overall design while maintaining secure attachment through direct contact between the cutting tool's fixing part and the holder's clamping mechanism.
Solution Approach 2:
The patent merges the functions of the adapter and holder into a single direct clamping arrangement. The cutting tool's fixing part is designed to be clamped directly by the holder's clamping device, combining what were previously separate functional elements (adapter + holder) into a streamlined direct attachment system that reduces complexity while improving rigidity.
2Temperature
If cooling lubricant is supplied through a complex channel system, then the critical area can be cooled, but the design becomes more complex and the supply efficiency is reduced
Solution Approach 1:
The patent extracts and eliminates unnecessary intermediate coolant channels from the tool system. Instead of using complex multi-stage channel systems, the design provides direct supply of cooling lubricant to the critical cutting area through simplified pathways, reducing design complexity while maintaining effective cooling.
Solution Approach 2:
The coolant supply system is designed to deliver cooling lubricant directly to the critical area at the point of need, eliminating delays and inefficiencies associated with complex channel routing. The direct supply pathway ensures that cooling action is applied immediately and effectively to the cutting edge where it is most required.
3Reliability
If the cutting tool is clamped through an intermediate adapter, then the tool can be secured, but the rigidity and position stability are reduced
Solution Approach 1:
The patent removes the intermediate adapter that compromised the direct connection between the cutting tool and holder. By eliminating this intermediate element, the system achieves a direct rigid connection that maximizes position stability and attachment security, ensuring the cutting tool remains firmly fixed during high metal removal rate operations.
Solution Approach 2:
The patent merges the cutting tool's fixing part directly with the holder's clamping mechanism, creating a unified rigid assembly. This direct merging of components eliminates the flexibility and potential misalignment introduced by intermediate adapters, resulting in enhanced position stability and rigid attachment suitable for accurate machining operations.
4Device complexity
If a direct contact design is used between cutting tool and holder, then the design is simplified and rigidity is improved, but the cooling lubricant supply to the critical area may be insufficient
Solution Approach 1:
The patent applies local quality by designing specific coolant supply features at the critical areas where cooling is most needed. The direct contact design between cutting tool and holder is enhanced with localized coolant channels and spray points positioned precisely at the cutting edge and other critical zones, ensuring adequate cooling lubricant supply is maintained despite the simplified overall structure.
Solution Approach 2:
The patent merges the structural clamping function with the coolant delivery function in an integrated design. The direct contact arrangement between holder and cutting tool incorporates coolant supply pathways that utilize the same direct connection interface, allowing simultaneous achievement of rigid attachment and effective cooling through a unified simplified structure rather than separate complex systems.
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 design enhances the rigidity and accuracy of cutting tool attachment and ensures optimal cooling lubricant supply to the cutting edge, improving machining precision and efficiency by simplifying the design and reducing load on the fixing part.
Implementation Method 1
there is a fluid space (51) which is in fluid connection with a supply device (53, 55) for cooling lubricant... and from which this can be passed on directly to the critical area on the main cutting edge via a channel (45) in the cutting tool
Implementation Method 2
a clamping device, which has a clamping screw (31), by means of which a clamping force acting on the cutting tool can be generated in order to fix it on the holder
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A tooling system with a holder (1), and with a cutting tool (3) which has a cutting lip (7) and which has a fixture part (35), and with a tightening device which has a tightening screw (31), by means of which a tightening force acting on the cutting tool (3) can be generated for the fixing of the same to the holder (1), and with a feed device (53, 55) located in the holder (1) and intended for coolant-lubricant, is characterized in that, for direct placement, on the holder (1), of the fixture part (35) which belongs to the cutting tool (3) and which is applied under pressure by virtue of the tightening screw (31), a support area (19, 27) has been formed, and in that a fluid space (51) has been formed which is adjacent thereto and which is delimited by wall parts of the applied fixture part (35) of the cutting tool (3), and which has fluid connection to the feed device (53, 55) for coolant-lubricant, and from which coolant-lubricant can be passed onwards to the region of the main cutting lip (7) by way of a channel (45) which is located in the cutting tool (3) and which starts from the applied wall of the fixture part (35).