Workpiece Clamping Device with Segmented Threaded Spindle
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Solution Overview
Problem
Existing workpiece clamping devices require time-consuming adjustments for accommodating workpieces of different sizes due to the need for lengthy rotation movements along the clamping direction.
Innovation Solution
A workpiece clamping device featuring a threaded spindle with opposing thread sections for each clamping body, allowing quick adjustment by moving the clamping bodies between coupling and decoupling positions without rotating the spindle, facilitated by counter thread portions and a locking device for secure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the clamping bodies are adjusted by rotating the threaded spindle along the clamping direction, then the clamping bodies can be positioned along the spindle, but the adjustment process becomes time-consuming for workpieces of different sizes
Solution Approach 1:
The threaded spindle is segmented into multiple thread sections with different thread pitches along its length. This allows the coupling bodies to engage different thread sections to achieve various clamping positions without rotating the entire spindle, thereby reducing adjustment time while maintaining adaptability to different workpiece sizes.
Solution Approach 2:
The coupling bodies are designed to be movable along the threaded spindle, allowing dynamic engagement with different thread sections. This dynamic positioning capability enables quick adaptation to different workpiece sizes without the time-consuming process of rotating the spindle through long distances.
2Adaptability or versatility
If the threaded spindle is made longer to accommodate larger workpieces, then the adaptability increases, but the time required for rotation movements increases
Solution Approach 1:
Different sections of the threaded spindle have different thread pitches, creating local quality variations. This allows coupling bodies to engage specific local sections for quick positioning, reducing the need for long rotation movements while maintaining the ability to accommodate various workpiece sizes through selective engagement of different thread sections.
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
Enables rapid and precise adaptation to workpieces of varying sizes without the need for extensive spindle rotation, enhancing efficiency and ease of use.
Implementation Method 1
The threaded spindle has a first thread section for the first clamping body and a second thread section for the second clamping body. The counter thread portion is in engagement with the first thread section or the second thread section in the coupling position
Data Source
AI summary
A workpiece clamping device having at least one base body. A first clamping body and a second clamping body are movably supported on the at least one base body in a clamping direction. A threaded spindle extends along a spindle longitudinal axis. The spindle longitudinal axis is orientated in clamping direction. It has a first thread section for the first clamping body and a second thread section for the second clamping body. A first coupling body has a first counter thread portion and a second coupling body has a second counter thread portion. In a coupling position the counter thread portions are in engagement with the assigned thread section respectively. In a decoupling position the counter thread portion is disengaged from the assigned thread section. In this decoupling position a movement of the clamping bodies is possible without rotation of the threaded spindle.