Dual-Drive Tool Holder Motion for Compact 2D Wire Forming
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Solution Overview
Problem
Existing tool moving devices lack the necessary degree of freedom in the operation of the tool holder, limiting their versatility and efficiency.
Innovation Solution
A tool moving device incorporating a dual-drive source system with a first and second drive source unit, including a servomotor and speed reducer, connected via a special slider link mechanism that allows for two-dimensional movement of the tool holder, enhancing operational freedom and reducing installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional single-drive tool moving device is used, then the structure is simple, but the operational freedom of the tool holder is limited
Solution Approach 1:
The drive system is segmented into two independent drive sources (first and second drive sources), each controlling different degrees of freedom. The first drive source controls movement in one direction while the second drive source controls movement in another direction, allowing independent control of each axis to achieve complex two-dimensional trajectories
Solution Approach 2:
The system transitions from single-dimensional linear movement to two-dimensional movement by adding a second drive source that operates in a different direction. This dimensional expansion enables the tool holder to follow complex curved trajectories rather than simple linear paths
2Adaptability or versatility
If a dual-drive source system is implemented, then operational freedom increases, but the device complexity increases
Solution Approach 1:
The two drive sources are merged through a common slider mechanism. Both drive sources connect to the same slider, which integrates their movements into a coordinated two-dimensional motion of the tool holder. This merging reduces the number of separate mechanisms needed while achieving the dual-drive functionality
3Area of stationary object
If a slider link mechanism is used, then installation space is reduced, but the operational freedom is limited
Solution Approach 1:
The slider link mechanism is made dynamic by allowing the slider to move freely in two directions rather than being constrained to a fixed linear path. The link lengths and connection points are designed to allow dynamic adjustment of the movement trajectory, enabling complex two-dimensional motion while maintaining the compact slider mechanism structure
Data Source
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Figure 3A~3B
AI summary
[Problem] There is a demand for development of a technique capable of increasing the degree of freedom of operation of a tool holder and suppressing a decrease in operation speed associated therewith, with respect to a conventional tool moving device. [Solution to problem] A tool moving device 10A according to a present embodiment includes: a slider link mechanism 29 including a first drive source 21, a first link 23 configured to be rotationally driven by the first drive source 21, a slide guide 33, a slider 35V configured to be slidably supported by the slide guide, and a second link 25 configured to be rotatably connected to the first link 23 and the slider 35V, the slider link mechanism 29 being configured to be capable of moving the slider 35V along the slide guide 33 by power of the first drive source 21; a second drive source 31 configured to be capable of rotationally driving the slide guide 33 about a rotation axis parallel to a rotation axis of the first link 23; and a tool holder 36V provided at a portion of the slider link mechanism 29, the portion being movable to any desired two-dimensional position by power of the first drive source 21 and the second drive source 31, and the tool holder being configured to hold a tool 37V.