RinasCut Off-line System
The RinasCut Off-line System is used for the work
preparation which normally takes place days or even weeks before actual
production. The Off-line system is typically
installed at the office where the production planning takes place. Production
relevant information can be received from an existing production planning
system, or it can be entered directly in the RinasCut Off-line system. Based
on this information, the automatic robot program
generation takes place. The system automatically performs the nesting of
profiles on the available raw profiles. Subsequently the system generates
a data package containing the complete robot programs together with other
relevant information to be used by the RinasCut
On-line System. Several types of production
documentation can be printed during the work preparation. Other built-in facilities
of the Off-line system
are:
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Oxy-fuel cutting of a flat bar |
Automatic Robot Program Generation
The following steps are all done automatically during the automatic
robot program generation:
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All profiles to be cut are
prepared based on the information about
profile type, dimension, cuts to be used and the specified cutting
parameters.
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The profiles are nested on available raw bars.
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Availability of necessary material on stock is checked.
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Automatic selection of relevant cutting process data for every cut
stroke (or even parts of it, e.g. where material thickness changes)
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Generation of complete robot programs for cutting including
necessary sensing operations.
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Identification of profile unloading positions after cutting.
Typically unloading is determined by the size and shape of profiles.
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Creation of the complete production package data file which is to be
used by the On-line system.
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Cutting Process Data Maintenance
The cutting process information, such as cutting speed and, in case of
oxy-fuel cutting, even pre-heating time is depending on several
conditions:
In RinasCut this information is stored in a logical and hierarchical
way and a simple user interface is provided for maintaining this set of
information.
The specified process information, e.g. cutting speeds related to material
thickness, is graphically visualized with 2D curves.
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2D graphical presentation of process data definitions
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Stock Control
The RinasCut system contains an internal stock control facility
including a user interface for manual update of the contents of the stock.
Apart from raw material, also information about remnants is handled by
the stock control system in RinasCut
Through a specified format of an ASCII data file, the system is
designed to interface with existing stock control systems at customers
plant. Typically the following information is exchanged between the stock
control systems:
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New material (raw bars) available for cutting
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Deleted material, being no longer available for cutting
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Material reserved for later use
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Deletion of reservations
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Used bars information
Remnants longer than certain minimal length (user defined) can be handled, such
that they are reused in subsequent nesting process.
A detailed description of the data exchange information defines a
format that can be used for interfacing other stock control systems.
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Stock control user interface |
Definition of
Profile and Bar Types
The RinasCut system can be used for cutting all profile
types typically used at shipyards and other industries:
Apart from these, even other customer specific bars can be
defined using the graphical bar definition tools, which exist in the
RinasCut system.
Individually, for each profile type, an unlimited number
of size variants can be defined.
Normally, with the supply of the RinasCut system, a
set containing all of the
relevant profile types and dimension variants will be supplied as well!
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General definition of a T bar
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Definition of
Cut Types
The RinasCut Off-line system offers a unique graphical
user interface for defining practically any type and variation of cuts.
Once a cut type is defined it can be used in production simply by
specifying its name and actual parameter values. Normally,
with the supply of the RinasCut system, a set containing all of the
relevant cut types will be supplied as well!
Each cut definition has an individual name. Any number of
shape defining parameters can be specified and freely used within the cut
definition. All relevant cutting tool paths are defined
using a language with simple commands, and each change in the path
description is automatically visualized graphically on the screen. |
Graphical facility for definition
of cut types
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When a cut definition has been completed, the 3D graphical
visualization tool can be used to display the resulting shape of the
profile.
This is used to proof, that the cutting process will have the expected
result. Each cut definition can be used on any dimension
variant of the profile type (e.g. flat bar) for which it has been defined.
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3D visualization tool for proof of defined cut
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