Multi-Spindle Tool Handling for Faster Tool Holder Exchange
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Solution Overview
Problem
Existing multi-spindle machine tools face inefficiencies in tooling and retooling processes, particularly in exchanging tools that have exceeded their service life or are defective, leading to suboptimal operational efficiency.
Innovation Solution
A multi-axis handling apparatus is integrated into the machine tool, controlled by a machine control system, to facilitate efficient insertion and removal of tool holders into and from multiple tool holder receptacles, utilizing a multi-axis handling apparatus that can access a variety of tool holder receptacles and workpiece spindles, with features like positively-locking elements, clamping units, and a tool drive system for seamless tool spindle coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual tool exchange is used in multi-spindle machine tools, then device complexity is reduced, but productivity and operational efficiency deteriorate due to time-consuming retooling processes
Solution Approach 1:
The handling apparatus enables automated tool holder exchange without manual intervention. The system self-services by automatically transporting tool holders between storage and machining stations, eliminating the need for operator involvement in retooling operations and significantly reducing downtime.
Solution Approach 2:
Manual mechanical tool exchange is replaced by an automated handling apparatus with multi-axis movement capabilities. The system uses coordinated robotic motion along multiple axes to transport and position tool holders, substituting human-operated mechanical processes with automated electromechanical systems.
2Speed
If automated handling apparatus is added to multi-spindle machine tool, then productivity and tool exchange speed are improved, but device complexity increases
Solution Approach 1:
The handling apparatus is designed as a multi-functional system that performs multiple operations: transporting tool holders along multiple axes, positioning them at correct orientations, loading them into tool carriers, and managing tool holder storage. This universal apparatus consolidates what would otherwise require multiple separate devices into a single integrated system.
Solution Approach 2:
The handling apparatus employs dynamic multi-axis movement capabilities, allowing it to adapt its motion paths and positioning in real-time. The system can dynamically adjust its operations to access different tool holder receptacles and accommodate various tool exchange scenarios, providing flexibility despite the added complexity.
3Adaptability or versatility
If multiple tool holder receptacles are serviced, then adaptability and versatility are improved, but device complexity and control difficulty increase
Solution Approach 1:
The handling apparatus operates in multi-dimensional space with movement along multiple axes (X, Y, Z, and rotational axes). This multi-dimensional capability allows the single apparatus to access tool holder receptacles distributed across different spatial locations and orientations, effectively serving multiple receptacles without requiring multiple separate handling systems.
Data Source
AI summary
In order to configure a multi-spindle machine tool comprising a machine frame, a spindle drum arranged on the machine frame to be rotatable about a spindle drum axis and having a plurality of workpiece spindles, each of which is provided with a workpiece receptacle for a workpiece that is to be machined in a working area, a plurality of tool carriers arranged in the working area, in particular associated with individual spindle stations, and each having a tool holder receptacle into which a tool holder is insertable, as well as a machine control system for controlling the machine tool to be more efficient, it is proposed that a handling apparatus is arranged on the machine frame, that with the handling device, also controlled by the machine control system, at least one tool holder is insertable into at least one of the tool holder receptacles and/or removable therefrom.