Linear Motor Work Carrying Device for Press Machine
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Solution Overview
Problem
Conventional transfer press machines have complex and costly drive mechanisms due to the need for multiple cams to achieve variable motion patterns, leading to increased manufacturing costs and space requirements, with existing solutions either being too bulky or requiring large, heavy components that complicate construction and increase costs.
Innovation Solution
A work carrying device with a pair of parallel bars on either side of the moving bolster, featuring a feed carrier driven by a linear or servomotor-based mechanism, allowing for compact installation and simplified construction, with detachable movable bars and adjustable intervals to facilitate die changing and optimize motion patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple cams are used to achieve variable motion patterns, then the motion control capability is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent replaces the traditional cam-based mechanical drive system with a linear motor-based direct drive system. The linear motor eliminates the need for multiple cams, cam followers, and complex mechanical linkages while providing programmable motion control. This substitution reduces device complexity and manufacturing cost while maintaining or improving motion pattern variability through software control.
2Adaptability or versatility
If multiple cams are used to achieve variable motion patterns, then the motion control capability is improved, but the manufacturing cost increases
Solution Approach 1:
The linear motor-based direct drive system eliminates the need for precision-machined cams, cam followers, and complex mechanical linkages. This reduces manufacturing cost by removing expensive machining operations, reducing the number of precision components, and simplifying assembly. The motion pattern variability is achieved through programmable control rather than physical cam profiles.
3Ease of operation
If conventional drive mechanisms are used, then the work carrying device achieves sufficient motion control, but the device size and weight increase
Solution Approach 1:
The linear motor-based direct drive system eliminates heavy mechanical components such as multiple cams, cam followers, springs, and complex linkages. This significantly reduces the weight of the work carrying device while maintaining full motion control capability through electronic programming. The compact linear motor structure also reduces the overall device size.
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
The solution enables a compact, cost-effective, and versatile work carrying device that reduces manufacturing costs, simplifies construction, and allows for high-speed, high-precision operations with reduced noise and increased durability, while facilitating easy die changing and optimal motion control for various press working processes.
Implementation Method 1
A work carrying device with a pair of parallel bars on either side of the moving bolster, featuring a feed carrier driven by a linear or servomotor-based mechanism
Data Source
AI summary
A transfer feeder 41 has a lift/clamp device 80 moving a bar 14 in a lift direction and a clamp direction, a plurality of feed carriers 52 installed on the bar 14, and feeding linear motors 53 driving the feed carriers 52 in a feed direction. Since an object driven by the feeding linear motors 53 can be formed small since the feed carriers 52 are installed on the bar 14, the feeding linear motors 53 having a small capacity can be adopted to simplify the structure of a transfer press 1.