Combined Working Machine Layout for Compact Tool Exchange
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Solution Overview
Problem
Conventional combined working machines face challenges in achieving a space-saving design due to the arrangement and configuration of the automatic tool exchanger, which increases the machine's size when accommodating multiple tools and devices.
Innovation Solution
The combined working machine is designed with a bed featuring a forward-inclined surface, where the first and second workpiece main spindle devices are positioned opposite each other, and the first and second turret devices are disposed behind, with the tool main spindle device sandwiched between them, allowing for a compact layout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the automatic tool exchanger is mounted on the bed together with each device such as a turret, then various types of working can be performed, but the arrangement and configuration become problematic for space-saving installation
Solution Approach 1:
The patent positions the tool main spindle device between the first and second turret devices in the lateral direction, and places the automatic tool exchanger at the rear end of the bed. This spatial arrangement in multiple dimensions allows all devices to coexist without increasing the front-rear depth of the machine, achieving versatility while maintaining a compact installation footprint.
Solution Approach 2:
The automatic tool exchanger is positioned at the rear end of the bed, utilizing the available space behind the turret devices. This nested arrangement allows the tool exchanger to be integrated into the existing structure without requiring additional lateral or front-rear space, effectively nesting multiple functions within a compact volume.
2Extent of automation
If a structure for moving the tool rest to the automatic tool exchanger is provided, then tool exchange with respect to the third tool rest can be performed, but the combined working machine increases in size
Solution Approach 1:
The patent extracts the movement function from the tool rest and applies it to the entire tool main spindle device assembly. By moving the tool main spindle device along the X-axis instead of moving only the tool rest, the system achieves automatic tool exchange capability while using a more efficient movement mechanism that does not increase machine size.
Solution Approach 2:
The X-axis movement mechanism serves multiple functions: it positions the tool main spindle device for tool exchange operations and also positions it for working operations. This multi-functionality eliminates the need for separate movement structures, achieving automation without increasing machine dimensions.
3Area of stationary object
If the tool main spindle device is disposed on the bed between the first and second turret devices, then each device is housed in a compact manner, but the arrangement becomes more complex
Solution Approach 1:
The patent employs an asymmetric layout where the tool main spindle device is positioned between the turret devices, and the automatic tool exchanger is placed at the rear end. This asymmetric arrangement optimizes space utilization and simplifies the overall configuration by creating a logical flow from front to rear, reducing complexity compared to symmetric or scattered arrangements.
Data Source
AI summary
There is provided a combined working machine including: a bed in which a front inclined surface which is inclined forward is formed; a first workpiece main spindle device and a second workpiece main spindle device disposed on the front inclined surface of the bed to be opposite to each other and including a main spindle stand configured to rotatably hold a main spindle about an axis and a driving mechanism configured to move the main spindle in an axial direction of the main spindle; a first turret device and a second turret device including a turret configured to attach multiple turret tools disposed above the main spindle on the bed; and a tool main spindle device disposed between the first turret device and the second turret device on the bed and including a main spindle head configured to exchangeably and rotatably hold a main spindle head tool.