Machining Tool Fastening with Independent Locking and Clamping
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Solution Overview
Problem
Existing fastening devices for machine tools are time-consuming to set up and equip, negatively impacting the economic efficiency of machine tool operations due to the difficulty in clamping and releasing machining tools.
Innovation Solution
A fastening device with a clamping unit that applies a clamping force obliquely to the machining tool, allowing for non-positive attachment and easy connection to a contact body, featuring a locking connection that can be independently connected and disconnected without requiring the clamping force to be overcome, and includes a reversible locking mechanism for secure and efficient tool attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clamping unit with screw connection is used to fasten the machining tool to the support body, then the machining tool can be securely clamped, but the time required for loading and unloading the machining tool increases
Solution Approach 1:
The fastening device is divided into two independent functional modules: a clamping unit for applying clamping force and a locking connection for securing the tool. This segmentation allows the locking connection to be engaged or disengaged independently of the clamping force, enabling rapid tool changes without the need to overcome clamping force during locking operations.
Solution Approach 2:
The locking connection is designed to be engageable before the clamping unit is fully tightened. This preliminary action allows the operator to quickly secure the tool in position before applying full clamping force, reducing the overall time required for tool changes while maintaining secure fastening.
2Manufacturing precision
If the clamping unit is screwed to the support body to transfer clamping force, then the machining tool can be precisely fastened, but the operation becomes time-consuming and complex
Solution Approach 1:
The fastening device separates the clamping function from the locking function into independent modules. The locking connection provides a simple snap-fit or latch mechanism that does not require threading or complex operations, while the clamping unit separately provides the precise securing force needed for accurate tool positioning.
Solution Approach 2:
Instead of requiring the clamping force to be applied first and then locked (traditional approach), the invention allows the locking connection to be engaged first or simultaneously with clamping, reversing the traditional sequence and simplifying the operation by eliminating the need to overcome high clamping forces during locking operations.
3Reliability
If the locking connection requires overcoming clamping force to connect, then the tool can be securely fastened, but the fastening process becomes difficult and requires more effort
Solution Approach 1:
The locking connection is designed as an independent module that operates separately from the clamping force generation. This allows the locking mechanism to engage without requiring the operator to overcome the full clamping force, significantly reducing the effort needed while still providing secure fastening through the combined action of both modules.
Data Source
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AI summary
A fastening device (18) for fastening a machining tool (4, 14) to a machine tool, in particular to a press device, comprises at least one support body (20) against which the machining tool (4, 14) can be clamped, a clamping unit (28) for releasably clamping the machining tool (4, 14) to the at least one support body (20) and a locking connection (30) for releasably connecting the clamping unit (28) to the at least one support body (20).