Piston-Loaded Disc Clamp Structure for Fast, Precise Braking
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Solution Overview
Problem
Existing braking and/or clamping devices lack quick response times and high accuracy, particularly in applications requiring small strokes and precise control.
Innovation Solution
The device employs a pressure chamber delimited by a piston with a bulged top face, which is movable axially. The pressure chamber is radially bounded by the housing's outer walls and an inner ring, with a disc element seated on the piston face. This configuration allows for precise control and quick response by adjusting the deformation of the disc element and unloading the inner wall portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional braking and/or clamping device is used, then the structure is simple, but the response time is slow and accuracy is low
Solution Approach 1:
The braking device is segmented into multiple functional components: a piston for pressure application, a disc element for deformation, and inner wall portions for clamping. This segmentation allows each component to perform its specific function efficiently, contributing to quick response and high accuracy while maintaining manageable structural complexity.
Solution Approach 2:
The disc element is designed to be dynamically deformable under piston pressure, transitioning from a relaxed state to a deformed state that applies precise clamping force. This dynamic behavior enables quick response to pressure changes and accurate control of the clamping force, improving reliability without excessive complexity.
2Manufacturing precision
If the stroke is reduced for high accuracy, then positioning precision improves, but the force transmission capability decreases
Solution Approach 1:
The system changes the physical state of the disc element from undeformed to deformed under controlled pressure, creating a proportional relationship between pressure magnitude and clamping force. This parameter change enables accurate force control with minimal piston stroke, achieving both positioning accuracy and sufficient clamping force.
Solution Approach 2:
The conventional direct mechanical linkage is replaced by a pressure-mediated system where pneumatic or hydraulic pressure acts on the piston, which then deforms the disc element. This substitution allows for smoother, more precise force transmission with reduced stroke requirements, improving positioning accuracy while maintaining force capability.
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
The solution achieves a high-accuracy, quick-response braking and/or clamping action with a small stroke, enabling precise control over machine parts moving relative to each other.
Implementation Method 1
the load on the inner wall portion, which is directed radially in the direction of a longitudinal axis of the braking and/or clamping device oriented in the axial direction, decreases with increasing deformation of the disc element
Implementation Method 2
Pneumatic or hydraulic pressure is applied to the pressure chamber to release the braking and/or clamping device. The pressure chamber is enlarged, wherein the at least one piston delimiting the pressure chamber is displaced
Implementation Method 3
Pneumatic or hydraulic pressure is applied to the pressure chamber to release the braking and/or clamping device
Data Source
AI summary
A braking and/or clamping device includes an annular housing which has a pneumatic or hydraulic connection and surrounds an axially oriented rod receptacle. The housing has a base part and a cover part. An annular pressure chamber is disposed within the housing. The pressure chamber is axially delimited by a piston which is movable in the axial direction. The pressure chamber is radially delimited by the outer walls of the housing and by an inner ring which surrounds an inner wall of the housing. The inner wall has an inner wall portion. In the housing, a disc element is disposed on the piston top face, which faces away from the pressure chamber and is axially oriented. The piston top face is seated against or fastened to the disc element. The inner wall portion is protrudingly located in a cover part or in a base part of the housing.