Machine Tool Loading Device with Swivel Carrier and Splash Guard

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Solution Overview

Problem

Existing machine tools face challenges in designing a quick, inexpensive, and simplified loading system while expanding the working area, and require effective protection against contamination during machining processes.

Innovation Solution

The workpiece carrier is arranged to move along a horizontal axis (Z-axis) with horizontal slides and swivel capability around another horizontal axis parallel to the X-axis, equipped with grippers and a lifting device for efficient workpiece handling, and a splash guard to prevent contamination, allowing for longer tool usage and automatic closure of the work area during processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the transport track is guided through the work area to achieve short transport routes, then the transport efficiency is improved, but the protection against contamination from chips and coolants becomes more difficult and complex

Engineering Contradiction:
Improvetransport efficiencyVSAvoidprotection system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The loading device is extracted from the work area and positioned at the machine frame's loading position. The transport track is separated into two distinct sections: one in the work area and one at the loading position. This extraction eliminates the need for complex protective measures at the transfer point while maintaining short transport routes through the alternative loading configuration.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

A splash guard is introduced as an intermediary protective element between the work area and the loading device. This simple barrier effectively prevents chips and coolants from contaminating the loading position without requiring complex protection systems, thus resolving the contradiction between transport efficiency and protection complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Area of stationary object

If the workpiece carrier is arranged to move along a horizontal axis with swivel capability, then the working area is expanded and longer tools can be used, but the device complexity increases

Engineering Contradiction:
Improveworking areaVSAvoidcarrier mechanism complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The workpiece carrier is designed with multi-functionality, combining horizontal movement along the Z-axis with swiveling capability around the X-axis. This single device performs multiple functions: positioning workpieces for different machining operations, accommodating various tool lengths, and enabling both loading/unloading and processing positions. The horizontal slides and swivel mechanism are integrated into a unified structure that achieves working area expansion without proportionally increasing overall system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Productivity

If the loading and unloading position is located directly next to the work area, then the transport route is shortened, but the protection against contamination becomes more critical

Engineering Contradiction:
Improvetransport route efficiencyVSAvoidcontamination risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

A splash guard is positioned between the work area and the loading device to act as an intermediary protective barrier. This simple structural element effectively blocks chips and coolants from reaching the loading position where workpieces are transferred, thus maintaining short transport routes while eliminating contamination risks through a minimal protective measure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The splash guard functions as a thin protective barrier that separates the contaminated work area from the clean loading position. This thin film-like structure is sufficient to prevent contamination without requiring complex protection systems, enabling the loading device to operate close to the work area while maintaining environmental separation.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentEP1795298B1Machine tool with loading device
Publication Date: 2008.07.16 SCHWABISCHE WERKZEUGMASCHINEN GMBH
  • EP1795298B1 patent drawingFigure 1
  • EP1795298B1 patent drawingFigure 2
  • EP1795298B1 patent drawingFigure 3

AI summary

A workpiece holder (14) and a processing unit (5) are movable towards each other along the centerlines of machine coordinate systems in a machine rack (1). The processing unit is particularly a tool holding fixture for receiving tools(7). The workpiece holder is arranged centering on a swing axis (23) which is orthogonal to the z-axis, and is displaceable on a horizontal carrier (8) parallel to the z-axis between an unloading position and the effective range of the processing unit.