Turning Tool Clamping Pin for Independent Coolant Alignment
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Solution Overview
Problem
Existing turning tools for metal cutting face challenges in adjusting clamping force without affecting coolant supply, as the clamping mechanism is intertwined with the coolant system, limiting independent control over clamping force, angular position, and coolant direction.
Innovation Solution
A turning tool design featuring a clamping pin with axial slidable movement and a locking mechanism that allows for independent adjustment of clamping force and coolant outlet direction, enabling secure clamping of cutting inserts while maintaining coolant fluidity without angular restrictions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the clamping pin is fixed in angular position relative to the coolant channel, then coolant supply is maintained, but clamping force adjustment is restricted
Solution Approach 1:
The clamping pin is segmented into two independent functional aspects: axial position (controlling clamping force) and angular position (controlling coolant direction). The axial sliding movement allows clamping force adjustment while the angular position remains fixed for reliable coolant supply. This segmentation enables independent optimization of both functions without mutual interference.
Solution Approach 2:
The clamping pin is designed with dynamic axial sliding capability within the tool body bore, allowing the operator to adjust the clamping force by moving the pin axially. This dynamic adjustment is enabled by the clearance between the pin and bore, while the fixed angular position maintains reliable coolant channel alignment.
2Ease of operation
If the clamping pin is made axially movable to adjust clamping force, then ease of operation improves, but angular position control becomes difficult
Solution Approach 1:
The design separates axial and angular position control into independent domains. Axial movement is permitted through clearance fitting for easy clamping adjustment, while angular position is naturally constrained by the geometry of the tool body bore and clamping pin configuration, maintaining manufacturing precision without requiring complex locking mechanisms.
Solution Approach 2:
The tool body bore acts as an intermediary element that permits axial sliding movement while naturally constraining angular position. The bore's geometry serves as a passive guide that allows the clamping pin to move axially for force adjustment while maintaining precise angular orientation for coolant channel alignment.
3Device complexity
If the coolant channel and clamping mechanism are integrated, then device complexity is reduced, but independent control of clamping and coolant functions is limited
Solution Approach 1:
The integrated structure is functionally segmented into axial and angular degrees of freedom. The clamping mechanism controls axial position while the coolant channel system relies on fixed angular alignment. This functional segmentation within an integrated structure enables independent control of clamping force and coolant direction without requiring separate mechanisms.
Solution Approach 2:
The clamping pin and coolant channel are merged into a single integrated component that performs both clamping and coolant delivery functions. The pin's axial movement capability provides clamping adjustment while its fixed angular position maintains coolant flow, combining multiple functions in one element without compromising independent control.
Data Source
AI summary
A turning tool for metal cutting includes a tool body with an insert seat, a clamping member and a clamping pin. The clamping pin connects the tool body and the clamping member to clamp a cutting insert in the insert seat. A shaft of the clamping pin is axially movably received in the tool body bore and moveable to a first axial position. The clamping pin, in the first axial position, engages the clamping member and forces the clamping member towards a tool body top surface, to clamp the cutting insert in the seat. In the first axial position, a first coolant fluid outlet opening in the head is located above a top surface of the clamping member. A locking mechanism, in the first axial position, releasably locks the shaft in the bore preventing axial sliding toward the tool body top surface.