Fine blanking cutting die as transfer part
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Solution Overview
Problem
Existing methods for fine blanking small to medium-sized parts result in excessive material waste and increased production time due to separate transportation of blanked parts, leading to higher costs and potential tool stoppages from unremoved slugs.
Innovation Solution
A device where the cutting die serves both as an active element for machining and a transfer part to transport workpieces between stages, eliminating the need for a separate cross slide and allowing for simultaneous machining cycles on concentric base circles, with hydraulic lifting and turning mechanisms for efficient material handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate cross slide is used to transport blanked parts between machining stages, then transportation function is provided, but production time increases and tool stoppages occur
Solution Approach 1:
The cutting die is merged with the transfer part functionality, combining the machining function and transportation function into a single integrated component. The cutting die itself becomes the transfer part that carries out both cutting and transporting operations, eliminating the need for separate cross slide mechanisms and reducing production time.
Solution Approach 2:
The cutting die is designed to perform multiple functions: it acts as both the active element for machining (cutting) and as the transfer part for transporting workpieces between machining stages. This multi-functionality eliminates the need for separate transportation mechanisms and reduces tool stoppages.
2Ease of operation
If separate cross slide is used for transporting blanked parts, then transportation is enabled, but device complexity increases
Solution Approach 1:
The cutting die and transfer part are merged into a single integrated component. The cutting die itself is designed to function as the transfer part, eliminating the need for separate cross slide mechanisms and reducing overall device complexity.
Solution Approach 2:
The cutting die performs dual functions as both the machining tool and the transportation carrier. This multi-functionality reduces the number of separate components needed in the system, thereby simplifying the overall device structure.
3Manufacturing precision
If conventional blanking method is used, then machining is performed, but material waste increases
Solution Approach 1:
The cutting die is segmented into multiple cutting openings arranged on a common base circle, allowing simultaneous machining of multiple workpieces in different stages. This segmentation enables better material utilization by processing multiple parts through the same blanking operation.
Solution Approach 2:
The transfer part is designed to be turnable around a virtual axis, allowing dynamic repositioning of workpieces between machining stages. This dynamic capability enables optimal material utilization and reduces waste by allowing flexible arrangement of cutting operations.
4Adaptability or versatility
If conventional progressive tool is used with cross slide transportation, then multiple machining stages are achieved, but production efficiency decreases
Solution Approach 1:
The cutting die and transfer part are merged into one integrated component that performs both machining and transportation functions. This eliminates the need for separate cross slide mechanisms and reduces the time required for tool opening and closing during workpiece transfer, thereby improving production efficiency.
Solution Approach 2:
The workpiece remains continuously clamped and held by the cutting die throughout the machining process, eliminating the need for tool opening and closing during transfers. This continuous clamping enables uninterrupted machining operations and improves production efficiency.
Data Source
AI summary
A device and a method for fine blanking and forming a workpiece out of a flat strip includes. a cutting plate formed as a disc-shaped transfer part, with several cutting openings adapted to the effective elements which take up and clamp a cut out a blank to transport the blank from one machining stage to the next. The transfer part is turnable with regard to the effective elements of the upper part around a virtual axis parallel to the machining direction in the center of the transfer part, turnable perpendicular to it after a lift over the effective elements of the lower part, and the cutting openings in the transfer part are arranged on a common base circle, the radius of which coincides with the distance of the machining stage to the axis, and that the machining stages of the upper part are arranged on the base circle at fixed distances to each other, wherein the machining stages in the transfer part are allocated at least two machining elements diametrically opposed at the circumference, fixed in the pressure pad of the upper part, arranged parallel to the axis locking bolts and several arranged diametrically opposed at the circumference locking openings in the transfer part for adjusting, fixing and lining up the effective elements to each other.