Optical Fiber Cutter With Self-Positioning Blade
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Solution Overview
Problem
Conventional optical fiber cutters require complex processes for adjusting the positional correlation of the blade member with the optical fiber or gripper, making operations cumbersome.
Innovation Solution
An optical fiber cutter design with a rotatable lid and a movable blade member, where the blade member is positioned between two gripping mechanisms, allowing for precise adjustment and easy replacement, facilitated by a displacement mechanism that adjusts the blade height and gripper alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a hard metal alloy or diamond blade member is used to cut the optical fiber, then the cutting capability is improved, but the complexity of adjusting the positional correlation of the blade member with the optical fiber or gripper increases
Solution Approach 1:
The blade member is designed with self-positioning features including positioning protrusions that fit into positioning grooves on the blade holder, and a positioning hole that aligns with a positioning pin. This self-alignment mechanism automatically establishes the correct positional correlation between the blade member and the optical fiber/gripper without requiring complex manual adjustment procedures, thus resolving the contradiction between cutting precision and adjustment complexity
Solution Approach 2:
The blade member is pre-equipped with positioning protrusions and the blade holder is pre-equipped with corresponding positioning grooves and pins before assembly. This preliminary preparation of positioning features ensures that when the blade member is installed, the positional correlation is automatically established without requiring complex adjustment operations during setup, thereby reducing device complexity while maintaining cutting precision
2Stability of the object's composition
If the blade member is built in the base with fixed position, then the structural stability is improved, but the ease of replacing the blade member deteriorates
Solution Approach 1:
The blade member is designed as a separate, detachable component from the base structure. It is mounted on a blade holder that can be independently removed from the base, allowing the blade member to be segmented and replaced without affecting the overall structural stability of the cutter body, thus resolving the contradiction between structural stability and replacement ease
Solution Approach 2:
The blade member transitions from a fixed state during operation to a movable state during replacement. The blade holder can be moved between a locked position (providing structural stability during cutting) and a removed position (enabling easy blade replacement), thus resolving the contradiction between structural stability and replacement ease through dynamic configurability
Data Source
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AI summary
An optical fiber cutter of the invention includes: a device main body that includes a lid rotatably mounted with respect to a base and is capable of gripping an optical fiber by a lower gripper provided on the base and an upper gripper provided on the lid; a movable blade member configured to scratch a surface of the optical fiber gripped between the lower gripper and the upper gripper from the base; and a pressing portion configured to press the optical fiber scratched by the blade member to cut the optical fiber. At least one of the lower grippers is configured as a gripping member which is a member separate from the base and is rotatable about a rotation fulcrum, and a rotation fulcrum of the upper gripper paired with the at least one of the lower grippers is on the same center line as the rotation fulcrum of the at least one of the lower grippers.