Turret Tool Holder Feed Coordination to Prevent Free Rotation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing turret tool holders have design limitations due to the need for a lever to transmit axial motion at a slower speed than the clutch member, restricting the degree of freedom and leading to potential free rotation during index-turning motions.
Innovation Solution
A turret tool holder with a moving mechanism comprising a rotatably supported drive shaft, first and second feed screw mechanisms, and a coordination mechanism that allows the clutch member and engaging element to move at different speeds, enabling the clutch member to engage with the drive section side engaging body before disengagement, and incorporating a rotation-lock mechanism to prevent free rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lever is used to transmit axial motion at a slower speed than the clutch member, then the engaging element can be moved in coordination with the clutch member, but the degree of freedom of the design is restricted
Solution Approach 1:
A coordinate mechanism is introduced as an intermediary between the drive shaft and the engaging element. This mechanism includes a coordinate member with a coordinate hole that guides the movement of the engaging element, ensuring it moves at the required slower speed relative to the clutch member without needing a complex lever system. The coordinate mechanism mediates the motion transmission while providing design flexibility.
2Reliability
If the clutch member is engaged with the drive section side engaging body before the engaging elements are disengaged, then free rotation of the turret is prevented, but the arrangement of the moving mechanism becomes more constrained
Solution Approach 1:
The coordinate mechanism introduces a new dimensional constraint through the coordinate hole, which guides the engaging element's movement in a specific path. This allows the engaging element to move at a different speed and in a coordinated manner with the clutch member, providing both the required reliability and arrangement flexibility by adding a guiding dimension to the motion control.
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
This configuration enhances the degree of freedom and stability by preventing unnecessary free rotation of the turret during index-turning, improving the design flexibility and preventing damage to tools and peripheral devices.
Implementation Method 1
a first feed screw mechanism and a second feed screw mechanism corresponding to the rotational drive of the drive shaft, for moving the clutch member and the engaging element
Data Source
AI summary
A turret tool holder includes an engagement means having engaging elements on a turret side and a support base side, a clutch member for transmitting a driving power to a turret drive section, and a moving mechanism. The moving mechanism includes a rotatably supported drive shaft, a first feed screw mechanism and a second feed screw mechanism rotatable in response to the rotational drive of the drive shaft for moving the clutch member and the engagement elements, and a coordination mechanism arranged between the drive shaft and the first feed screw mechanism or the second feed screw mechanism, for moving the engaging elements in response to the rotational drive of the drive shaft, with a feed amount smaller than the feed amount of the clutch member.