Adjustable Clamping Device for Rod Profiles
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Solution Overview
Problem
Existing clamping devices for rod-shaped profiles, such as pipes, suffer from inadequate positional accuracy due to deviations in the center axis, which can lead to accumulated errors during processing, failing to meet strict quality requirements.
Innovation Solution
A clamping device with adjustable centering clamps featuring movable clamping jaws and deformable tongues, along with adjustable spacer components, allows for precise alignment of the pipe center axis with the desired axis, enabling correction of offsets in all directions through the deformation of prismatic supports and the use of conical screws or piezoelectric elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional clamping devices with fixed centering clamps are used, then the device structure is simple, but the positional accuracy of the clamped pipe is insufficient due to center axis deviations
Solution Approach 1:
The patent implements adjustable centering clamps with movable clamping jaws that can be dynamically repositioned along the pipe surface. The clamping jaws are mounted on movable supports that allow adjustment in multiple directions, enabling the device to adapt to center axis deviations and achieve high positional accuracy while maintaining a relatively simple overall structure
Solution Approach 2:
The patent employs piezoelectric elements to change the physical state and position of the clamping jaws through electrical signals. By applying voltage to the piezoelectric actuators, the clamping jaws can precisely adjust their position to compensate for center axis offsets, thereby improving manufacturing precision without significantly increasing structural complexity
2Adaptability or versatility
If the clamping device is designed for simple clamping, then the device complexity is low, but it cannot correct center axis offsets in all directions
Solution Approach 1:
The patent designs the clamping jaws to be dynamically adjustable in multiple directions through movable supports. Each clamping jaw can be repositioned independently along the pipe surface, allowing the device to adapt to center axis deviations in any direction and significantly improving versatility while keeping the mechanical structure relatively straightforward
Solution Approach 2:
The patent introduces piezoelectric elements as intermediary components between the control system and the clamping jaws. These piezoelectric actuators serve as mediators that convert electrical signals into precise mechanical displacements, enabling fine adjustment of clamping jaw positions to correct center axis offsets without requiring complex mechanical 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
The device achieves high-precision clamping and processing by allowing for real-time adjustment of the pipe's position relative to the clamping device, significantly reducing axis offsets and ensuring compliance with strict quality criteria.
Implementation Method 1
The support shape-changing device comprises at least one piezoelectric element, by which the support shape can be changed
Data Source
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AI summary
The invention relates to a clamping device for rod-shaped profiled elements (3) having a substantially circular cross-section and having a profiled element center axis (R) extending in a longitudinal direction (L) of the rod-shaped profiled element (3), comprising at least two centering clamps (1, 2) spaced from each other along a target center axis (S), each centering clamp having at least two opposing clamping jaws (6, 7, 11, 12) that can be moved centrically between a clamping position and a release position in a movement plane arranged perpendicularly to the target center axis (S), each clamping jaw having a contact surface, which contact surfaces jointly enclose the rod-shaped profiled element (3) in the clamping position and orient the profiled element center axis (R) along the target center axis (S), wherein the shape of the contact surfaces can be changed by means of an adjustable adjustment device and the adjustment device reduces an offset of the target center axis (S) from the profiled element center axis (R) in the clamping position.