Hole Deburring Tool Control for Up-Cut and Down-Cut Machining
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Solution Overview
Problem
Existing machine tools face challenges in efficiently and conveniently removing burrs from the periphery of holes, particularly when forming cross holes, due to the complexity of creating machining programs for down-cutting or up-cutting operations.
Innovation Solution
A machine tool with a spindle, tool post, and control unit that allows for the attachment of a deburring tool to rotate around a spindle axis, enabling control to perform either down-cutting or up-cutting by maintaining the instructed cutting direction and movement direction, facilitating easy deburring operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a specialized tool is used to remove burrs from the periphery of a cross hole, then burr removal can be performed, but the programming complexity increases and operation convenience deteriorates
Solution Approach 1:
The deburring tool is designed to perform multiple functions: it can remove burrs from cross holes and also perform chamfering operations. The tool post can hold different tools (deburring tool, chamfering tool, or other machining tools) to handle various machining needs. This multi-functionality reduces the need for specialized single-purpose tools and simplifies programming by using standard tooling approaches.
Solution Approach 2:
The control unit automatically determines and adjusts the cutting position and tool orientation based on the commanded cutting direction (up-cutting or down-cutting). The system self-adjusts the relative positional relationship between the spindle and tool post, and automatically orients the deburring tool, eliminating the need for manual programming of complex positioning sequences.
2Manufacturing precision
If the cutting position is not automatically adjusted, then programming is simpler, but cutting interference occurs and manufacturing precision deteriorates
Solution Approach 1:
The control unit receives commands specifying the desired cutting direction (up-cutting or down-cutting) and automatically adjusts the cutting position and tool orientation to achieve the commanded cutting type. This feedback mechanism ensures that the actual cutting process matches the intended operation, preventing interference and maintaining precision without requiring complex manual programming.
Solution Approach 2:
The system dynamically adjusts the relative positional relationship between the spindle and tool post during machining based on the commanded cutting direction. The control unit modifies tool position and orientation in real-time to maintain the correct cutting geometry, enabling adaptive precision control rather than relying on fixed pre-programmed positions.
3Productivity
If manual programming of cutting positions is required, then control system is simpler, but productivity decreases due to increased programming time and cycle time
Solution Approach 1:
The control unit automatically determines the cutting position and tool orientation based on simple commands specifying the cutting direction (up-cutting or down-cutting). This self-service capability eliminates time-consuming manual programming of complex positioning sequences and automatically optimizes the machining process, significantly improving productivity while the control unit handles the computational complexity.
Data Source
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AI summary
To provide a machine tool that improves convenience when removing burrs. A deburring tool that cuts a periphery of a hole in an orientation intersecting a spindle axis in a workpiece is attached to a tool post of a machine tool and the tool post rotates the deburring tool around a deburring tool center axis. A control unit of the machine tool acquires a command (CM1 to CM4) for instructing the deburring tool to either perform, on the periphery, down-cutting in which a cutting direction by the rotating deburring tool is opposite to a relative movement direction of the deburring tool or to perform, on the periphery, up-cutting in which the cutting direction and the relative movement direction are the same, and performs control to cut the periphery so as to maintain the cut instructed by the command (CM1 to CM4) at a cutting position.