Kiesling Perforex machining centre
Machining centres are normally designed for universal use for the machining of parts of different sizes and from a range of materials. Since the rigidity of the machine must always be geared to the highest load conditions, the machine is often very robust and heavy. This may have a trade-off in its accessibility and ease of use.
Limiting machines to specific applications enables them to be designed better in this respect. The Perforex machining centre produced by Kiesling Maschinentechnik GmbH is a dedicated machine for the machining of thin sheet-metal parts and switchgear cabinets. The specialist application results in a lower need for rigidity in the machine's design, and easier access and a substantially improved facility for loading of parts into the machine have been attained.
Standards relevant to powered industrial trucks can be found on ErgoNoRA by use of the following search terms:
- Machining centre
The Technical Report ISO/TR 22100-3 describes how ergonomic principles can be applied during the risk reduction process according to ISO 12100 and how ergonomics standards can be applied to machinery. It helps designers take decisions with respect to ergonomics during the machine design process and can also be used when no relevant type C standards are available.
Universal machine tools often suffer from severely restricted accessibility owing to encapsulation and protective equipment. This particularly makes it difficult for bulky components to be handled, necessitating the adoption of unfavourable body postures. The standard location of the machining head over the workpiece also constrains the use of lifting equipment (see also EN 1005-2).
- Stress category
The vertical design assures open access to the workpiece holder from the front and from above. For heavy components of larger volume, cranes and forklifts can be used to assist handling. The particular design of this machine for the production of sheet-metal items enables full encapsulation to be dispensed with. This creates additional freedom to move and work. The fixing of components in a vertical position enables many tasks to be performed at a comfortable working height (see EN 14070:2009, Table 2; EN 12417:2009, Table 2; EN 13128:2009, Table 5; EN 1005-4).
- Principle of operation
- Adaptation of the manufacturing strategy to the particular conditions of the components to be machined
- Modification of the physical arrangement of machine parts for improved access to the machine working areas
- EN 14070: Safety of machine tools - Transfer and special-purpose machines
- EN 12417: Machine tools - Safety - Machining centres
- EN 13128: Safety of machine tools - Milling machines (including boring machines)
- EN 1005-2: Safety of machinery - Human physical performance - Part 2: Manual handling of machinery and component parts of machinery
- EN 1005-4: Safety of machinery - Human physical performance - Part 4: Evaluation of working postures and movements in relation to machinery