Rolling Guiding Device Track Groove Ball Circulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional rolling guiding devices require complex machining steps and high production costs, and face challenges in smoothly circulating small-diameter balls due to machining and assembly errors, making it difficult to produce small-sized devices with endless circulation paths.
Innovation Solution
A rolling guiding device with a track groove on the movement block that allows balls to circulate without the need for through-holes or end caps, using load and non-load straight-line grooves and ball deflection grooves to facilitate continuous movement along the raceway rail, which can be easily formed using single cutting steps or casting processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional rolling guiding devices use through-holes or end caps to form endless circulation paths, then balls can circulate continuously, but machining complexity and production cost increase significantly
Solution Approach 1:
The invention merges the load rolling groove and non-load rolling path into a single integrated track groove structure on the movement block. The track groove includes a load rolling groove portion for ball circulation and a non-load rolling path portion that connects to form an endless circulation path, eliminating the need for separate through-holes or end caps while maintaining continuous ball circulation.
Solution Approach 2:
The track groove is segmented into functional portions: a load rolling groove portion where balls bear load during movement, and a non-load rolling path portion where balls circulate without load. This segmentation allows the ball circulation path to be formed within the movement block itself without requiring additional components.
2Reliability
If conventional devices use multiple components (end caps, through-holes) for ball circulation, then endless circulation is achieved, but assembly precision requirements increase due to machining errors
Solution Approach 1:
By combining the entire ball circulation path into a single track groove formed on the movement block, the invention eliminates multiple assembly interfaces between end caps, through-holes, and the block main body. This single-integration approach removes accumulation of machining and assembly errors that would otherwise affect ball circulation smoothness.
3Volume of moving object
If conventional rolling guiding devices are made small-sized, then device size is reduced, but it becomes difficult to form endless circulation paths with small-diameter balls
Solution Approach 1:
The integration of the endless circulation path directly into the movement block's track groove eliminates the need for separate small components like end caps and through-holes, which are difficult to manufacture and assemble with small-diameter balls. The single-track groove structure can be formed using conventional machining or molding processes even for small-sized devices.
4Manufacturing precision
If conventional devices use complex machining steps for track grooves, then precise circulation paths are formed, but production time and cost increase
Solution Approach 1:
The track groove is designed as a single integrated feature on the movement block that can be formed in one machining operation or molding process. The load rolling groove portion and non-load rolling path portion are continuously connected without requiring separate machining steps for through-holes or end cap fabrication and assembly, significantly reducing production time while maintaining circulation precision.
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
Enables the production of small-sized rolling guiding devices at low cost with simplified machining and reduced noise, as the balls can circulate smoothly within the track grooves, eliminating the need for precise assembly and reducing production time and effort.
Implementation Method 1
the balls roll along while bearing a load between the movement block and the raceway rail, whereby it is possible for the movable member mounted on the movement block to make a smooth movement along the raceway rail while involving very little resistance
Implementation Method 2
both ends of this non-load rolling path are communication-connected with the load rolling path by a pair of direction changing paths formed in an arcuate configuration. The balls are released from the load at an end of the load rolling path, and are detached from the ball rolling groove of the raceway rail to enter one of the direction changing paths
Data Source
AI summary
A rolling guiding device makes it possible to easily provide a movement block with an endless circulation path for the balls. In one surface of a movement block opposed to a rolling groove of a raceway rail, there is formed a track groove through which balls makes an endless circulation. The track groove is includes a load straight-line groove which allows, between the track groove and the rolling groove of the raceway rail, the balls to roll while bearing a load. It also includes a pair of ball deflection grooves respectively provided at both ends of the load straight-line groove and adapted to release the balls having rolled through the straight-line groove from the load and to change their rolling direction, and a non-load straight-line groove for transferring the ball in a non-load state from one deflection groove to the other ball deflection groove.