Machine Tool Transverse Carrier for Heavy Workpiece Machining
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Solution Overview
Problem
Machine tools face challenges when machining large and heavy workpieces due to limitations in accommodating and maneuvering heavy and long internal machining tools, which restrict flexibility and usability.
Innovation Solution
The machine tool design includes a function carrier base that can be position-controlled in the transverse direction, allowing for the use of a tool holder with larger dimensions than those on the turret head, and a tool magazine system that enables the exchange of tools, along with a rotatable workpiece support unit and a counter-spindle or tailstock for enhanced machining capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If heavy and long internal machining tools are placed in the turret head, then the machine can perform internal machining operations, but the tool size and weight restrict flexibility and usability
Solution Approach 1:
The patent introduces a function carrier base that moves in the transverse direction (Y-axis), adding a new dimensional space for tool accommodation. This separates the tool holder from the turret head's rotational space, allowing tools to extend in the transverse direction rather than being constrained by the turret's radial space, thus enabling longer tools without restricting turret operations
Solution Approach 2:
The function carrier base acts as an intermediary between the machine frame and the tool holder. It provides a platform that carries the tool holder and enables transverse movement, mediating the connection between the workpiece support unit and the tool, and allowing independent positioning of the tool relative to the workpiece
2Length of moving object
If the tool holder dimensions are increased to accommodate longer tools, then internal machining becomes possible, but the turret head space is restricted
Solution Approach 1:
The patent extracts the tool holder from the turret head structure and places it on a separate function carrier base. This separation removes the tool holder from the turret head's space constraints, allowing the tool holder to have larger dimensions without reducing turret head space for other tools and operations
3Manufacturing precision
If a position-controlled transverse movement of the function carrier base is implemented, then precise internal machining is enabled, but the device complexity increases
Solution Approach 1:
The function carrier base is designed to serve multiple functions: it carries the tool holder, provides transverse movement for positioning, and supports the tool during machining operations. This multi-functionality reduces the need for separate mechanisms, thereby limiting the increase in device complexity despite adding position-controlled movement
Data Source
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AI summary
The machine tool has a machine frame (10) and a workpiece spindle unit (20) having a workpiece spindle (24) and a workpiece receptacle (28) arranged on the machine frame. A work piece support unit is provided on a side of the workpiece receptacle opposite to the workpiece spindle. The work piece support unit is arranged on a movable functional carrier base (290) that is controlled by a machine controller (50).