Linear Module Roller Guide for Precision Positioning Stability
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Solution Overview
Problem
Industrial linear modules experience significant deformation and positioning control errors over time due to repeated use and operation distance, leading to reduced performance and service life.
Innovation Solution
The linear module incorporates a base plate with a screw, a carrier block, a carrier block rail, a long rail, and a roller guide to reduce friction, featuring supplemental materials like toothed wheels to enhance rigidity and positioning control, and includes a dust protective strip to prevent foreign material ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a conventional linear module is used for repeated operations over several years, then the device can maintain continuous operation, but the deformation of the device and positioning control error increase significantly
Solution Approach 1:
The linear module is divided into separate functional components: a carrier block for positioning, a carrier block rail for guidance, and a long rail for support. This segmentation allows each component to be optimized independently and facilitates replacement or maintenance of specific parts without affecting the entire system, thereby maintaining precision over extended service life.
Solution Approach 2:
A roller guide is introduced as an intermediary element between the carrier block rail and the long rail. This roller guide reduces friction and wear during repeated operations, preventing deformation and maintaining positioning accuracy over time by mediating the interaction between moving and stationary components.
2Speed
If the frictional force between the carrier block rail and the long rail is reduced, then the acceleration performance and load coefficient improve, but the positioning control may become less stable
Solution Approach 1:
The roller guide acts as a mediator that reduces friction between the carrier block rail and long rail, improving acceleration performance and load handling. The roller guide's design ensures smooth motion while maintaining controlled interaction, preventing excessive slippage that would compromise positioning stability.
Solution Approach 2:
The friction parameter is optimized by introducing the roller guide, which changes the nature of contact from direct sliding to rolling. This parameter change improves acceleration and load performance while the roller guide's geometric parameters are designed to maintain sufficient friction for stable positioning control.
3Manufacturing precision
If the rigidity of the linear module is increased, then the positioning control performance improves, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The structure is segmented into modular components (carrier block, carrier block rail, long rail, roller guide) that can be manufactured separately with standard precision requirements. This segmentation avoids the need for complex monolithic structures while achieving the required rigidity and positioning performance through precise assembly of simpler parts.
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 design improves rigidity, acceleration performance, load coefficient, and positioning control, extending the service life and protecting components from foreign materials while maintaining precise positioning and braking capabilities.
Implementation Method 1
a roller guide disposed between the carrier block rail and the long rail and to reduce the frictional force between the carrier block rail and the long rail when the carrier block moves in the longitudinal direction of the base plate
Implementation Method 2
The supplemental material to prevent sliding above can also include at least one or more toothed wheels, and the carrier block rail or the long rail can comprise a groove corresponding to the teeth of the toothed wheel
Data Source
AI summary
The present invention relates to a linear module. The linear module according to an example of the present invention comprises a base plate; a screw disposed on the base plate and arranged in the longitudinal direction of the base plate; a carrier block including a hollow part surrounding a portion of the screw; a carrier block rail disposed on one side of the carrier block and arranged in the longitudinal direction of the base plate; a long rail disposed on the base plate and arranged in the longitudinal direction of the base plate; and a roller guide disposed between the carrier block rail and the long rail and to reduce the frictional force between the carrier block rail and the long rail when the carrier block moves in the longitudinal direction of the base plate.