Linear Guide Pretension Sync for Precise Load Guidance
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Solution Overview
Problem
Existing linear guide devices face complexity in adjusting the pretension between guide units, making it difficult to achieve precise guidance and absorb high lateral forces and torques effectively.
Innovation Solution
A central actuating device is introduced to drive-couple the adjustment units of both guide units, allowing synchronous adjusting forces to be exerted uniformly, ensuring even pretension distribution and precise guidance with reduced assembly time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two separate adjustment units are used for each guide unit, then individual pretension adjustment is possible, but the adjustment process becomes complex and time-consuming
Solution Approach 1:
The patent combines two separate adjustment units into a single central actuating device that simultaneously adjusts both guide units. The central actuating device has a first actuator that generates adjusting forces transmitted to both first and second guide modules through a common force transmission element, enabling synchronized pretension adjustment of both guide units with a single operation.
Solution Approach 2:
The central actuating device serves multiple functions: it adjusts the pretension of both guide units simultaneously, maintains balanced pretension distribution, and enables synchronous adjustment of multiple guide modules through a single actuator, thereby reducing the number of operations required while maintaining individual adjustability.
2Adaptability or versatility
If two separate adjustment units are used for each guide unit, then individual pretension control is achieved, but assembly time increases
Solution Approach 1:
The patent merges two separate adjustment operations into one by using a central actuating device with a common force transmission element that simultaneously acts on both guide units. This reduces the number of adjustment steps during assembly and operation, thereby decreasing assembly time while maintaining full pretension control capability.
Solution Approach 2:
The central actuating device is pre-configured with force transmission elements that automatically distribute adjusting forces to both guide units in a balanced manner. This preliminary arrangement of force transmission paths eliminates the need for sequential adjustment operations, reducing assembly time and simplifying the adjustment process.
3Manufacturing precision
If synchronous adjusting forces are applied to both guide modules, then pretension distribution is improved, but the device complexity increases
Solution Approach 1:
The patent introduces a common force transmission element as an intermediary between the single actuator and the two guide modules. This force transmission element receives the adjusting force from the actuator and distributes it synchronously to both guide modules, ensuring balanced pretension distribution while keeping the actuating device structure relatively simple.
4Ease of operation
If a central actuating device is used to drive-couple both adjustment units, then adjustment effort is minimized, but the structural complexity increases
Solution Approach 1:
The patent merges two independent adjustment mechanisms into one centralized actuating device with a common force transmission system. This consolidation reduces the number of separate actuators and control mechanisms needed, minimizing adjustment effort through a single operation while the modular force transmission design keeps the added structural complexity manageable.
Data Source
AI summary
A linear guide device having a guide carriage with two guide units, each guide unit including two guide modules abutting guide surfaces of a base structure in an operating position of the guide carriage. One of the two guide modules is an adjustable guide module, which is adjustable by means of one of two adjustment units to set a pretension between the guide modules and the guide surfaces. For synchronous actuation of the two adjustment units, a central actuating device is provided which is drivingly coupled to both adjustment units.