Ball Screw End Cover Assembly With Engaging Scrape Plate
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Solution Overview
Problem
The alignment and assembly of end cover and scrape plate components in ball screw devices are complex, leading to increased manpower consumption and costs, making it challenging to implement high-speed automated assembly processes.
Innovation Solution
The design includes a screw with a spiral outer groove, a nut with a corresponding spiral inner groove, an end cover with engaging grooves and a circulation member, and a scrape plate with engaging members, allowing for rapid and easy assembly through corresponding engaging structures, which simplifies the assembly process and reduces manpower consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the end cover and scrape plate are designed as separate components with complex alignment and assembly structures, then the device can achieve precise positioning and stable connection, but the assembly process becomes complicated requiring additional manpower and time
Solution Approach 1:
The patent combines the end cover and scrape plate into a single integrated component. The end cover includes both the cover structure and the scrape plate structure, eliminating the need for separate alignment and assembly of two components. This merging reduces assembly complexity while maintaining the functional requirements of both positioning and scraping through the integrated design.
Solution Approach 2:
The integrated end cover structure performs multiple functions simultaneously: it covers the nut, provides scraping function through the integrated scrape plate, and enables precise positioning through the built-in positioning structures. This multi-functionality reduces the number of components and simplifies the assembly process while maintaining connection stability.
2Ease of manufacture
If traditional separate component design is used for end cover and scrape plate, then each component can be optimized independently for its specific function, but the overall assembly time and manpower consumption increase
Solution Approach 1:
By merging the end cover and scrape plate into one integrated component, the patent eliminates the separate assembly steps required for two independent components. The integrated design allows the component to be manufactured as a single piece or pre-assembled unit, significantly reducing assembly time and manpower consumption while maintaining the ability to optimize the overall structure for both covering and scraping functions.
3Manufacturing precision
If complex alignment structures are implemented for assembling end cover with scrape plate, then precise positioning can be achieved, but the cost for automated assembly increases
Solution Approach 1:
The integrated end cover design eliminates the need for complex alignment structures between separate components. The positioning accuracy is achieved through built-in positioning features within the single component design, such as positioning ribs and grooves, which simplify the automated assembly process by reducing the degrees of freedom that need to be controlled during assembly.
Solution Approach 2:
The integrated component design incorporates pre-formed positioning structures and alignment features during the manufacturing stage. This preliminary action ensures that when the component is assembled into the ball screw device, precise positioning is achieved automatically without requiring complex alignment mechanisms or additional adjustment steps during assembly.
Data Source
AI summary
A linear motion device and a linear motion device component are provided. The linear motion device includes a screw, a nut, an end cover, and a scrape plate. The nut is fitted over the screw, and a spiral outer groove of the screw and a spiral inner groove of the nut correspond to each other to form a ball groove. The end cover is fixed to the nut. A first through hole portion is defined through the end cover and corresponds to the nut. An engaging groove is arranged on a first surface of the end cover. The scrape plate is assembled with the end cover. A second through hole portion is defined through the scrape plate and corresponds to the nut. An engaging member is arranged on the scrape plate and assembled with the engaging groove.