Dual-Spindle Dental Prosthesis Machine Tool Switching
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Solution Overview
Problem
Conventional dental prosthesis manufacturing machines require complex and time-consuming processes to switch between roughing and finishing tools, leading to increased costs and inefficiencies in achieving high manufacturing accuracy.
Innovation Solution
A dental prosthesis manufacturing machine design featuring first and second spindles with rotating roughing and finishing tools, a workpiece holder, and a base that allows the spindles to move on intersecting axes, enabling easy alternation between tools based on required accuracy, with the workpiece holder moving on perpendicular axes to position the workpiece between the spindles for precise machining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional machines use separate precision machining machines for high accuracy work, then manufacturing accuracy is improved, but device complexity and manufacturing time increase
Solution Approach 1:
The patent combines roughing tools and finishing tools on the same spindle, merging two separate machining operations into a single machine. This eliminates the need for separate precision machining machines while maintaining high manufacturing accuracy through automated tool switching mechanisms.
Solution Approach 2:
The spindle is designed to perform multiple functions by housing both roughing tools and finishing tools, allowing a single machine to handle both rough machining and precision finishing operations. This multi-functionality reduces device complexity while preserving manufacturing precision.
2Manufacturing precision
If conventional machines transfer workpieces between different machines for precision machining, then manufacturing accuracy is improved, but loss of time and productivity decrease
Solution Approach 1:
By combining roughing and finishing tools on the same spindle, the workpiece remains on one machine throughout the entire machining process. This eliminates time-consuming workpiece transfers between machines while maintaining precision machining accuracy through automated tool selection and switching.
Solution Approach 2:
The machining process becomes continuous as the workpiece is machined without interruption or transfer. The automated mechanism selects and switches between roughing and finishing tools on the same spindle, maintaining continuous useful action and eliminating idle transfer time, thereby improving productivity while preserving precision.
3Manufacturing precision
If conventional machines disconnect and reattach tools for precision machining, then manufacturing accuracy is improved, but ease of operation and time consumption worsen
Solution Approach 1:
Both roughing and finishing tools are permanently mounted on the same spindle in a fixed arrangement. The automated switching mechanism selects between these pre-positioned tools based on machining requirements, eliminating the need for manual disconnection and reattachment of tools while maintaining precision machining accuracy.
Solution Approach 2:
The machine performs automated tool selection and switching based on the machining requirements, eliminating the need for operator intervention in tool changes. The system automatically determines when to switch between roughing and finishing tools, improving ease of operation while maintaining manufacturing precision.
Data Source
AI summary
A dental prosthesis manufacturing machine is disclosed. The machine includes two spindles each having a roughing tool and a finishing tool, a workpiece holder for holding a workpiece which forms the dental prosthesis, and a base supporting the two spindles and the workpiece holder. The machine is capable of simply alternating the roughing tool with the finishing tool according to the accuracy required when the workpiece is machined.