Linear Guide Mounting Extensions That Prevent Clamping Deformation
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Solution Overview
Problem
Existing linear guide units experience deformation when clamped to a support, which impairs the precision of the guiding function.
Innovation Solution
The introduction of first and second mounting extensions with overlapping support and clamping surfaces on the bottom side of the profiled body, allowing for clamping without causing deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If clamping means are used to fix the linear guide unit to a support, then the linear guide unit is securely mounted, but deformation occurs in the profiled body which impairs guiding precision
Solution Approach 1:
The base plate is segmented into a clamping region and a guiding region. The clamping region includes mounting extensions with clamping surfaces that receive clamping forces, while the guiding region contains the guiding surfaces that remain deformation-free. This spatial segmentation allows clamping forces to be localized away from the critical guiding surfaces, maintaining guiding precision while achieving secure mounting.
Solution Approach 2:
Mounting extensions act as intermediary elements between the clamping means and the base plate. These extensions transmit clamping forces from the clamping surfaces to the support, isolating the guiding surfaces from direct clamping loads. The mounting extensions serve as a mechanical mediator that protects the precision guiding region from deformation-causing forces.
2Ease of operation
If clamping forces are applied at outer regions of the profiled body, then the linear guide unit can be fixed without impeding movement, but tension and deformation occur resulting in changed distances between guiding surfaces
Solution Approach 1:
Different regions of the base plate are given different functional qualities. The clamping region is designed to withstand and distribute clamping forces through mounting extensions, while the guiding region is designed to maintain precise geometric relationships between guiding surfaces. This local differentiation allows outer region clamping without compromising the dimensional stability of the guiding surfaces.
Solution Approach 2:
The mounting extensions project downward from the bottom side of the base plate in the vertical dimension, creating a three-dimensional solution to a two-dimensional problem. By extending the clamping interface into the vertical dimension through these projections, clamping forces can be applied at outer regions while the force transmission path is routed through the extensions rather than through the planar base plate, preventing deformation of the guiding surfaces.
Data Source
AI summary
A linear guide unit with a profiled body, the profiled body having a base plate with an upper side and a bottom side, and a movement unit which has a carriage and which has a guiding unit with a first guiding module located on the carriage and a second guiding module. The movement unit is mounted on the profiled body so as to be linearly movable in the longitudinal direction. A first mounting extension and a second mounting extension project from the bottom side, in which a first support surface of the first mounting extension and a second support surface of the second mounting extension project from the bottom side in a direction opposite to a vertical direction, a first clamping surface being provided on the first mounting extension and a second clamping surface being provided on the second mounting extension.