Quick Chucking Unit with Movable Cylinder and Sealing
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Solution Overview
Problem
Existing quick chucking units face challenges in design and reliability, particularly in securely latching and unlatching chucking elements, and in effectively sealing the chuck receptacle to prevent contamination.
Innovation Solution
A quick chucking unit design where the cylinder element moves relative to a fixed piston element, using inclined guides for radial movement of chucking elements, and a sealing unit with an elastic sealing element that transitions from an insertion to a sealed position, ensuring secure latching and sealing of the chuck receptacle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the piston element is made movable and the cylinder is made fixed, then the quick chucking unit can be operated, but subassemblies or units cannot be easily arranged and secured to the piston element
Solution Approach 1:
The patent inverts the conventional design by making the piston element fixed and the cylinder movable. This inversion allows subassemblies to be securely mounted on the fixed piston element, which serves as a stable mounting platform, while the cylinder's mobility is maintained through its connection to the movable chucking elements.
Solution Approach 2:
The hollow piston element is designed with an internal cavity that can accommodate and secure subassemblies or units. This nesting structure allows additional functional components to be integrated within the piston element's hollow space, increasing adaptability without significantly increasing external dimensions.
2Reliability
If the chucking elements are latched securely, then reliability is improved, but the mechanism for securing them becomes more complex
Solution Approach 1:
Spring elements are employed to automatically push the chucking elements into the latched position within the chuck receptacle. This self-service mechanism ensures reliable latching without requiring complex external actuation systems, as the springs automatically engage and secure the chucking elements when the cylinder moves.
3Reliability
If the chuck receptacle is sealed to prevent contamination, then reliability is improved, but the sealing mechanism increases device complexity
Solution Approach 1:
A sealing element in the form of a flexible bellows structure is used to seal the chuck receptacle. This flexible membrane can deform to accommodate the movement of the cylinder and chucking elements while maintaining the seal, preventing contamination without requiring a rigid complex sealing mechanism.
4Productivity
If the cylinder element moves axially to operate chucking elements, then productivity is improved, but the design complexity increases
Solution Approach 1:
The patent employs inclined guides that convert the axial movement of the cylinder element into radial movement of the chucking elements. This dimensional transformation allows the single axial degree of freedom of the cylinder to control the radial latching/unlatching action, achieving rapid operation without requiring multiple actuators or complex mechanisms.
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
The design enhances the reliability and functionality of the quick chucking unit by ensuring secure latching and sealing of the chuck receptacle, preventing contamination and improving assembly efficiency, while allowing for the integration of subassemblies and units within the hollow piston element.
Implementation Method 1
pressurizing the pressure area with a pressurizing means moves the chucking element into the latched or unlatched position
Implementation Method 2
at least one spring element can be provided for acting on the cylinder element in such a way as to hold the chucking elements in the latched position
Implementation Method 3
an elastic sealing element, which is pressed by the pressure element against the area of the basic body enveloping the chuck receptacle
Data Source
AI summary
The invention relates to a quick chucking unit with a chuck receptacle formed by a basic body, with at least one chucking element that can move relative to the basic body between an unlatched and latched position, with a cylinder and a piston element situated within the cylinder, which together with the cylinder, borders at least one pressure region, wherein pressurizing the pressure region moves the chucking element into the latched or unlatched position, wherein the piston element is designed as a piston element fixed in place relative to the basic body, and the cylinder is designed as a cylinder element that can move relative to the basic body and piston element. The invention also relates to a sealing unit for such a quick chucking unit, as well as to a quick chucking system.