Guide Bush Control Device for Non-Rotatable Adjustment
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Solution Overview
Problem
Adjusting a rotary guide bush is difficult due to the need to rotate an adjustment nut while regulating the guide bush's rotation, typically requiring a spanner, which complicates the process and poses safety risks.
Innovation Solution
A guide bush control device with a motor and controller that fixes the guide bush non-rotatably by exciting the motor in a rotation stop state, allowing for easy adjustment of the inner diameter without manual intervention, using a fixing unit, rotation regulator, and manual operation regulator to prevent erroneous rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the guide bush is rotated and driven by a guide bush motor, then the guide bush can be driven automatically, but it becomes difficult to adjust the inner diameter because the guide bush rotates integrally with the guide bush sleeve
Solution Approach 1:
The controller excites the guide bush motor in advance during a rotation stop state to fix the guide bush non-rotatably before adjustment operations begin. This preliminary fixing action eliminates the need for manual spanner regulation during adjustment, resolving the contradiction between automatic driving capability and ease of adjustment.
2Ease of operation
If the guide bush is fixed non-rotatably by exciting the guide bush motor in a rotation stop state, then adjustment becomes easy and safe, but the guide bush cannot rotate when needed for operation
Solution Approach 1:
The system dynamically switches between two states: during adjustment operations, the guide bush motor is excited to fix the guide bush non-rotatably; during machining operations, the excitation is released to allow free rotation. This dynamic state change resolves the contradiction between ease of adjustment and productivity.
3Ease of manufacture
If a spanner is used to regulate the rotation of the guide bush during adjustment, then the adjustment nut can be rotated, but the operation becomes complex and safety risks increase
Solution Approach 1:
The controller replaces the mechanical spanner regulation system with an electromagnetic fixing system. By exciting the guide bush motor during rotation stop state, the system creates a magnetic field that holds the guide bush non-rotatably, eliminating the need for mechanical spanners and complex manual regulation 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
Facilitates easy and safe adjustment of the guide bush's inner diameter by eliminating the need for manual rotation regulation with a spanner, ensuring operational safety and preventing erroneous rotation during adjustments.
Implementation Method 1
fixing the guide bush non-rotatably by exciting the guide bush motor in a rotation stop state
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
A guide bush control device that easily adjusts a guide bush by rotating an adjustment nut provided in a back end of the guide bush is provided. A controller (17) that controls driving of the guide bush motor (12) for rotating and driving the guide bush (11) includes a fixing unit that fixes the guide bush (11) non-rotatably by exciting the guide bush motor (12) in a rotation stop state.