Chain-Type Bit Storing Apparatus for CNC Machine Tools
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Solution Overview
Problem
Chain-type bit-storing apparatuses in CNC machine tools have complex structures and inefficient operations due to their design, which hinders fast and efficient bit replacement.
Innovation Solution
A CNC machine tool with a chain-sprocket unit and a pivoting unit that allows for efficient bit replacement by pivoting links to switch bits between normal and pivoted positions, utilizing a chain engaged with sprockets and a pivoting mechanism to facilitate easy engagement and disengagement of bits with the machine tool axle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a chain-sprocket unit is used for bit storage and transfer, then bits can be stored and transferred automatically, but the structure becomes complicated and operation efficiency decreases
Solution Approach 1:
The chain is divided into multiple independent links, each capable of holding a bit. Each link can be individually pivoted to access bits without moving the entire chain structure, simplifying the overall system while maintaining automated transfer capability through the sprocket engagement.
Solution Approach 2:
The links are designed with pivoting capability, transforming the rigid chain structure into a dynamic one where individual links can rotate to present bits for access. This dynamic feature enables efficient bit replacement without requiring complex robotic manipulation, balancing automation with operational efficiency.
2Extent of automation
If a chain-sprocket unit is used for bit storage, then automated bit delivery is achieved, but bit replacement operation becomes inefficient
Solution Approach 1:
Bits are pre-positioned in the links of the chain, which is automatically delivered to the access position by the sprocket mechanism. The pivoting unit then performs a quick rotational action to present the bit for immediate engagement, eliminating time-consuming manual retrieval operations and improving bit replacement productivity.
Solution Approach 2:
The pivoting mechanism allows rapid reorientation of the bit-holding link from a storage position to an access position in a single rotational motion. This dynamic transition significantly reduces the time required for bit replacement compared to manual handling or complex robotic sequences, thereby improving productivity.
3Quantity of substance
If traditional chain-type bit-storing apparatus is used, then bit storage is achieved, but structure complexity increases and operation efficiency decreases
Solution Approach 1:
The chain structure serves multiple functions: it stores multiple bits in its links, automatically delivers them via sprocket engagement, and enables access through pivoting. This multi-functionality eliminates the need for separate storage racks, robotic grippers, and positioning mechanisms, reducing overall structural complexity while maintaining adequate bit storage capacity.
Solution Approach 2:
By dividing the storage function into individual links within the chain, each link acting as an independent bit holder, the system achieves scalable storage capacity without proportionally increasing complexity. The standardized link design allows easy addition of more links to expand storage while maintaining the same simple mechanical principles.
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 solution enhances the efficiency of bit replacement in CNC machine tools by simplifying the operation and structure of the bit-storing apparatus, allowing for faster and more reliable switching between bits, thereby improving overall machine performance.
Implementation Method 1
a rotator rotationally connected to the frame
Implementation Method 2
a pin for pivotally connecting the frame thereof to the rotator of another link
Data Source
AI summary
A chain-type bit-storing apparatus is provided for a CNC machine tool. The chain-type bit-storing apparatus includes a chain engaged with sprockets rotationally provided thereon. The chain includes links each includes a frame, a rotator rotationally connected to the frame, a pin for pivotally connecting the frame thereof to the rotator of another link and a socket connected to the frame and used to receive a bit. There is a pivoting unit for pivoting a selected one of the bits by pivoting a related one of the links.