Press-Molded Slide Table for Linear Actuator
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Solution Overview
Problem
Existing linear actuators face challenges in forming a slide table with high precision and stability while maintaining low manufacturing costs, which affects the secure and precise transportation of objects.
Innovation Solution
A linear actuator design where the slide table is formed by press molding, incorporating a cylinder mechanism with pistons and a guide mechanism, allowing for reciprocal movement along the cylinder main body, and featuring projecting mounting portions for secure object retention, fabricated from martensitic stainless steel with controlled hardness and precision dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the slide table is formed by conventional manufacturing methods, then manufacturing precision and stability can be achieved, but manufacturing costs increase and production time extends
Solution Approach 1:
The patent combines multiple components (slide table body, mounting portions, and reinforcement structures) into a single integrated press-molded component. This merging eliminates the need for separate manufacturing and assembly steps for these parts, achieving both high precision through single-step molding and cost reduction through process simplification
Solution Approach 2:
The mounting portions are formed in advance as integral parts of the slide table during the press molding process itself, rather than requiring subsequent machining or assembly operations. This preliminary formation of mounting features directly reduces manufacturing steps and costs while maintaining precision
2Ease of manufacture
If the slide table is formed by press molding, then manufacturing costs and production time are reduced, but the structural strength and stability may be compromised
Solution Approach 1:
The patent applies local quality by providing reinforcement portions at specific locations within the slide table structure where strength is needed, while maintaining the overall press-molded construction. This allows the slide table to achieve adequate strength at critical areas without requiring the entire structure to be over-engineered, thus maintaining cost-effectiveness
Solution Approach 2:
The slide table utilizes composite construction with the molded body and integrated reinforcement portions forming a unified structure. This composite approach allows different regions to have optimized properties for their specific functions while maintaining overall structural integrity through the press-molded process
3Reliability
If mounting portions are provided on the slide table, then object retention security is improved, but the device complexity increases
Solution Approach 1:
The mounting portions are merged with the slide table body as integral features rather than separate components. This combining approach provides secure object retention through the molded mounting structures while avoiding the complexity of separate mounting hardware and assembly procedures
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 enables the slide table to be manufactured at reduced costs with enhanced precision and stability, ensuring secure and precise transportation of objects by forming mounting portions simultaneously during press molding and utilizing martensitic stainless steel for strength and durability.
Implementation Method 1
by introduction of a pressure fluid from fluid inlet and outlet ports, a slide table is made to move reciprocally along an axial direction of a cylinder main body
Implementation Method 2
into which the pressure fluid is introduced; the slide table moving reciprocally upon displacement of the piston
Data Source
AI summary
The present invention relates to a linear actuator. A slide table of the linear actuator includes a table main body and an end plate connected to another end of the table main body. On a base portion of the table main body, four workpiece retaining holes are formed, and fitting seats are disposed respectively about the workpiece retaining holes on radial outer sides thereof. The fitting seats are formed at the same time that the table main body is formed by press molding.