Wedge Clamping Device for Pressing Element Adjustment
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Solution Overview
Problem
Existing pressing devices in machine tools, such as moulding machines, face challenges in precisely adjusting the pressing element to match the cutting circle diameter of tools due to limited accessibility and adjustment in predetermined catch steps, leading to suboptimal machining of workpieces like wood and plastics.
Innovation Solution
The implementation of a wedge clamping device with an adjusting element that engages a wedge pressure member, allowing for precise and continuous adjustment of the pressing element relative to the support, enabling easy actuation and reliable clamping without affecting the position of the stud bolt or pressing element, and facilitating easy exchange of the pressing element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the pressing element is adjusted using a fastening screw in predetermined catch steps, then the pressing element can be secured in position, but the adjustment precision is limited and the fastening screw is not easily accessible
Solution Approach 1:
The pressing element is designed with a continuous adjustment mechanism using a wedge-shaped adjusting element that can be moved along the support in small increments, replacing the static catch-step adjustment. This allows dynamic, precise positioning of the pressing element relative to the tool's cutting circle while maintaining form-fit toothing for security during operation.
Solution Approach 2:
A wedge-shaped adjusting element is introduced as an intermediary between the support and the pressing element. This adjusting element has a wedge surface that interfaces with a counter-wedge surface on the support, allowing precise adjustment through small positional changes while the form-fit toothing provides the securing function.
2Manufacturing precision
If the pressing element is clamped securely to prevent movement during operation, then machining precision is maintained, but the adjustment and exchange of the pressing element becomes more difficult
Solution Approach 1:
The clamping mechanism uses a movable wedge-shaped adjusting element that can be easily positioned and locked. During adjustment, the wedge is moved to the desired position and then secured using the form-fit toothing between the pressing element and support, allowing both precise positioning and secure clamping without compromising ease of operation.
Solution Approach 2:
The form-fit toothing between the pressing element and support automatically engages to provide secure clamping once the adjusting element is positioned. The wedge-shaped adjusting element itself serves dual functions: positioning the pressing element and, when combined with the toothing, securing it in place without requiring separate complex fastening mechanisms.
3Manufacturing precision
If the pressing element is positioned precisely to match the cutting circle diameter, then optimal machining is achieved, but the adjustment mechanism becomes more complex
Solution Approach 1:
The adjusting element is designed with a wedge shape where small changes in the position of the adjusting element along the support result in precise changes in the spacing between the pressing element and the tool's cutting circle. This wedge geometry provides a simple mechanical means to achieve precise positioning without complex adjustment mechanisms.
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
This solution allows for precise and simple adjustment of the pressing element to match the cutting circle diameter of the tool, ensuring optimal machining quality and easy operation, while also providing a reliable clamping mechanism that minimizes vibration and maintains machining precision.
Implementation Method 1
at least one wedge clamping device that comprises at least one adjusting element that engages at least one wedge pressure member that is resting with at least one wedge surface on a counter wedge surface of the support
Data Source
AI summary
A pressing device for a machine tool for processing or machining workpieces made of wood or plastics is provided with at least one support with a counter wedge surface. At least one pressing element is fastened to the at least one support. At least one wedge clamping device is provided that has at least one wedge pressure member with a first wedge surface that is resting on the counter wedge surface of the at least one support. The at least one wedge clamping device also has at least one adjusting element acting on the at least one wedge pressure member. The at least one wedge clamping device clamps the at least one pressing element on the at least one support. A machine tool with such a pressing device is provided.