Linear Actuator Slide Table Bent Section Processing
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Solution Overview
Problem
Conventional linear actuators require additional processing steps for ball grooves and rolling grooves, which increases the number of parts and assembly steps, and there is a need to efficiently process rolling grooves with bent sections to reduce sliding resistance.
Innovation Solution
The linear actuator incorporates a processing method using a processing jig with a relief groove to efficiently polish ball-rolling grooves, allowing the jig to move along the grooves while avoiding contact with the bent section, reducing sliding resistance and improving durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If additional processing is applied to ball grooves and rolling grooves to reduce sliding resistance, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The end plate and table are integrally formed as a single slide table component, merging two separate parts into one. This reduces the number of parts and assembly steps while maintaining the functional integrity of the guide section and rolling groove structure
Solution Approach 2:
A processing jig is used to pre-form the rolling grooves with bent sections during the manufacturing process. The processing jig includes a relief groove that allows the polishing tool to efficiently process the rolling grooves without contact with the bent section, achieving high manufacturing precision before final assembly
2Productivity
If a processing jig with relief groove is used to polish ball-rolling grooves, then productivity is improved, but device complexity increases
Solution Approach 1:
The processing jig is designed with a relief groove that segments the polishing path, allowing the polishing tool to efficiently process the ball-rolling grooves by avoiding contact with the bent section. This segmentation of the processing path improves productivity by preventing tool interference and enabling continuous polishing motion
Solution Approach 2:
The relief groove in the processing jig acts as an intermediary feature that mediates between the polishing tool and the bent section of the slide table. It provides a clearance path that allows the polishing tool to access the rolling grooves without being obstructed by the bent section, thereby improving processing efficiency
Data Source
AI summary
A bent section, which is bent substantially perpendicularly toward a main cylinder body, is formed at one end of a slide table. Further, a pair of ball-rolling grooves, in which a plurality of ball bearings roll, are formed on side surfaces of the slide table opposed to a guide section. A relief groove, which has a width wider than a spacing distance between the ball-rolling grooves and which makes it possible to change the direction of a processing jig when the ball-rolling grooves are processed, is formed at ends of the ball-rolling grooves disposed on a side of the bent section.