Multi-Workpiece Clamping Jaws for Indexing Attachment Machining
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Solution Overview
Problem
Current clamping devices for CNC machine tools require significant setup time and effort to change workpieces, limiting productivity due to the need for reclamping and realignment for different machining positions.
Innovation Solution
A clamping device that allows for simultaneous or sequential clamping of multiple workpieces in a defined position using a single clamping mechanism, with adjustable jaws and compression springs for precise alignment, enabling machining without reclamping, and accommodating various workpiece arrangements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single workpiece is clamped on a dividing head for machining, then machining precision can be maintained, but setup time increases significantly when multiple workpieces need to be processed
Solution Approach 1:
The clamping device is divided into multiple independent clamping units (first clamping unit, second clamping unit, etc.) that can simultaneously clamp multiple workpieces. Each clamping unit operates independently but is integrated into a single device, allowing multiple workpieces to be clamped and processed in parallel without increasing setup time
Solution Approach 2:
Multiple clamping units are merged into a single integrated clamping device that is mounted on the dividing head. The device combines several clamping mechanisms that work together to hold multiple workpieces simultaneously, enabling batch processing while maintaining the precision of individual workpiece clamping
2Productivity
If multiple workpieces are clamped simultaneously, then productivity increases, but the complexity of the clamping device increases
Solution Approach 1:
The clamping device uses multiple simple, identical clamping units rather than one complex clamping mechanism. Each unit is a standardized component that can be replicated, making the overall device easier to manufacture, maintain, and adjust while achieving multiple workpiece clamping
Solution Approach 2:
The clamping units are designed with movable clamping elements that can be adjusted independently. The dividing head can rotate to position different clamped workpieces for machining, providing dynamic adaptability without requiring a complex fixed structure
3Stability of the object's composition
If workpieces are clamped in a fixed position, then clamping stability is maintained, but the ability to machine different surfaces or angles is limited
Solution Approach 1:
The system combines static clamping stability with dynamic positioning capability. Once workpieces are clamped in their defined positions, the dividing head can rotate to bring different workpieces or different angles into the machining zone, providing versatility without compromising clamping stability
Solution Approach 2:
The clamping device is designed to accommodate multiple workpieces in various orientations and positions. The same clamping device can process multiple surfaces and angles by rotating the dividing head, making it a universal solution for batch machining different features
Data Source
AI summary
The invention relates to an apparatus for simultaneous parallel clamping of a plurality of workpieces on an indexing attachment (1), which is fitted on a machine tool, comprises a stationary jaw (25) and at least one adjustable jaw (11) which is guided on guide rods. Workpieces inserted between the two jaws (11, 25) and positioned there can be clamped by a tensioning screw (21). A plurality of adjustable jaws (11) can be arranged one behind the other in series and thus also four or six workpieces can be gripped simultaneously with one single setting for machining.