Cutting Machine Tilt Support Link Arm Mechanism
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Solution Overview
Problem
Cutting machines with blades tilted relative to the base experience rattling issues due to a decrease in engagement area between protruding and recessed rails as the tilt angle increases, making smooth tilting difficult.
Innovation Solution
The cutting machine incorporates a tilt support system with a tilt plate, angular plate, and link arm, where the link arm connects the tilt plate and angular plate, allowing them to slide in contact and tilt together, maintaining their connection regardless of the tilt angle, thereby reducing rattling and enabling smooth tilting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If protruding rails and recessed rails are used for tilting support, then the cutting machine body can be tilted relative to the base, but the engagement area between the rails decreases as the tilt angle increases, causing rattling and making smooth tilting difficult
Solution Approach 1:
The patent applies the dynamics principle by making the link arm rotatable about a second axis that is parallel to the first tilting axis. This rotational capability allows the link arm to dynamically adjust its orientation during tilting operations, maintaining proper engagement between the tilt plate and angular plate across various tilt angles. The link arm's rotation about the second axis enables it to accommodate changes in the tilt angle while preserving the connection between moving and stationary components, thereby preventing rattling and ensuring smooth operation throughout the tilting range.
2Adaptability or versatility
If the tilt angle increases, then more cutting angles can be achieved, but the engagement area between the tilt plate and angular plate decreases, causing rattling
Solution Approach 1:
The link arm's ability to rotate about the second axis provides dynamic adaptation to different tilt angles. As the cutting machine body tilts to achieve various cutting angles, the link arm rotates accordingly to maintain optimal engagement between the tilt plate and angular plate. This dynamic adjustment preserves connection stability across the entire range of motion, allowing the system to achieve versatile cutting angles without sacrificing structural integrity or introducing rattling.
3Device complexity
If a simple rail engagement system is used, then the device complexity is low, but rattling occurs during tilting operation
Solution Approach 1:
The addition of the rotatable link arm introduces a dynamic element to the tilt support structure. While this increases device complexity slightly, it effectively eliminates rattling during tilting operations. The link arm's rotation about the second axis allows it to continuously maintain proper engagement between the tilt plate and angular plate, preventing loose connections and rattling sounds that would occur in a simpler, fixed-geometry rail system.
Data Source
AI summary
A cutting machine includes a base having an abutment surface, a cutting machine body and at least one tilt support part that supports the cutting machine body such that the cutting machine body can be tilted relative to the base around a first axis. The at least one tilt support part includes a tilt plate fixed to the cutting machine body, an angular plate arranged to face the tilt plate and fixed to the base, and a link arm configured to connect the tilt plate and the angular plate. When the cutting machine body is tilted, the tilt plate tilts together with the cutting machine body, and facing surfaces of the tilt plate and the angular plate slide in contact with each other, and the link arm tilts around a second axis parallel to the first axis in interlocking with tilting of the cutting machine body.