Cam Quick-Release Cutting Unit Connection for Machine Tools
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Solution Overview
Problem
Existing machine tools face inefficiencies in attaching and detaching cutting units due to time-consuming threaded bolt fastening and the need to replace worn-out or damaged holders and units as a single piece, leading to waste.
Innovation Solution
Incorporation of quick-release elements with cams and bores in the cutting unit handle, allowing for easy attachment and detachment by rotating a wrench to engage the cam's operative portion, reducing the need for threaded bolts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If threaded bolts are used to fasten the cutting unit to the holder, then the connection is secure, but it takes quite some time to adequately rotate the threaded bolt to fasten the cutting unit to the holder
Solution Approach 1:
The cam mechanism transforms rotational motion into linear displacement dynamically. When the quick-release element is rotated, the cam's eccentric geometry converts this rotation into rapid linear movement of the clamping surface, achieving secure fastening in a single rotational motion rather than requiring multiple rotations of a threaded bolt
Solution Approach 2:
The invention replaces the threaded bolt mechanical system with a cam-based quick-release mechanism. Instead of using threads to convert rotation into linear motion, the cam profile directly translates rotation into clamping force, eliminating the time-consuming threaded fastening process while maintaining connection security
2Reliability
If the cutting unit is made in one piece with the holder, then the connection is secure, but the holder has to be disposed together with the cutting unit when the cutting unit is worn out or damaged, which is a waste
Solution Approach 1:
The invention divides the cutting unit assembly into separable components: the cutting unit itself and the holder. The quick-release mechanism enables the cutting unit to be detached from the holder, allowing the holder to be reused while only the worn cutting unit is replaced. This segmentation eliminates the waste associated with disposing of the entire assembly and promotes sustainable resource utilization
3Reliability
If a threaded bolt is used to connect the cutting unit to the holder, then the connection is secure, but it takes quite some time to adequately rotate the threaded bolt to fasten the cutting unit to the holder
Solution Approach 1:
The cam mechanism transforms rotational motion into linear displacement dynamically. When the quick-release element is rotated, the cam's eccentric geometry converts this rotation into rapid linear movement of the clamping surface, achieving secure fastening in a single rotational motion rather than requiring multiple rotations of a threaded bolt
Solution Approach 2:
The invention replaces the threaded bolt mechanical system with a cam-based quick-release mechanism. Instead of using threads to convert rotation into linear motion, the cam profile directly translates rotation into clamping force, eliminating the time-consuming threaded fastening process while maintaining connection security
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 rapid and secure connection and disconnection of cutting units to holders, enhancing operational efficiency and minimizing waste by allowing separate replacement of components.
Implementation Method 1
Each of the quick-release elements includes a cam including an operative portion located further from a rotational axis than an idle portion
Data Source
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AI summary
A machine tool includes a cutting unit (30) and multiple quick-release elements (40). The cutting unit includes a handle including two lateral facets, an upper facet, multiple bores made in the upper facet, and multiple cutouts made in at least one of the lateral facets. Each of the cutouts is in communication with a corresponding one of the bores. Each of the quick-release elements includes a cam including an operative portion located further from a rotational axis than an idle portion. Each of the cams is inserted in a corresponding one of the bores. The idle portion of each of the cams is located in the corresponding bore when each of the cams is at a first angle. The operative portion of each of the cams extends from the corresponding bore through the corresponding cutout when each of the cams is at a second angle.