Spanende Bearbeitung mit Industrierobotern und Bearbeitungszentren*/Machining with industrial robots and machining centers – Analysis of the achievable component qualities in woodworking

2019 ◽  
Vol 109 (09) ◽  
pp. 650-655
Author(s):  
C. Menze ◽  
D. Becker ◽  
T. Stehle ◽  
H.-C. Möhring ◽  
N. Helfesrieder ◽  
...  
Keyword(s):  
Machine Tools ◽  
High Potential ◽  
Industrial Robots ◽  
Metal Industry ◽  
Great Flexibility ◽  
Process Forces

Industrieroboter bieten eine große Flexibilität und einen großen Arbeitsraum bei verhältnismäßig geringen Investitionskosten. Gegenüber spanenden Werkzeugmaschinen sind die Steifigkeiten und Bahngenauigkeiten von Robotern jedoch geringer. Dennoch bieten sie für die Holzbearbeitung großes Potential, da die Prozesskräfte gewöhnlich kleiner und die Toleranzen höher sind als im Metallbereich. Dieser Beitrag stellt einen Vergleich der erzielbaren Bauteilqualitäten bei der Holzbearbeitung mit Industrierobotern und Bearbeitungszentren vor.   Industrial robots provide great flexibility and a large working area at relatively low investment costs. However, their stiffness and path accuracy are generally lower compared to machine tools. Still, they offer high potential for woodworking, as the process forces are usually smaller and the tolerances higher than in the metal industry. This paper presents a comparison of the achievable component qualities in woodworking with industrial robots and machining centers.

Last-Verlagerungsverhalten von Kugelgewindetrieben/Load displacement behavior on ball screws

2020 ◽  
Vol 110 (05) ◽  
pp. 295-298
Author(s):  
Christian Brecher ◽  
Florian Kneer ◽  
Stephan Neus
Keyword(s):  
Machine Tools ◽  
Machining Process ◽  
Ball Screw ◽  
Elastic Displacement ◽  
Technical Paper ◽  
Process Forces ◽  
Displacement Behavior ◽  
Load Displacement ◽  
Machine Structure

Die axiale Steifigkeit von Kugelgewindetrieben ist wesentlich für das Betriebsverhalten von Werkzeugmaschinen. Während der Bearbeitung werden die Prozesskräfte über den Kugelgewindetrieb in die Maschinenstruktur übertragen. Kugelgewindetriebe tragen daher maßgeblich zur Qualität und Produktivität von Werkzeugmaschinen bei. Dieser Beitrag beschreibt eine Methode zur messtechnischen, prüfstandsgebundenen Ermittlung des Last-Verlagerungsverhaltens an Kugelgewindetrieben.   The axial elastic displacement of ball screws are essential for the operating behavior of machine tools. During machining, process forces must be transmitted to the machine structure via the ball screw. Ball screws contribute significantly to the quality and productivity of machine tools. This technical paper describes a methodology for the metrological determination of the load-displacement behavior on ball screws.

scholarly journals Modular fastening system and tool–holder working unit for incremental forming

2019 ◽  
Vol 299 ◽  
pp. 05005
Author(s):  
Melania Tera ◽  
Claudia–Emilia Gîrjob ◽  
Cristina–Maria Biriș ◽  
Mihai Crenganiș
Keyword(s):  
Machine Tools ◽  
Incremental Forming ◽  
Industrial Robot ◽  
Industrial Robots ◽  
Cnc Milling ◽  
End Effector ◽  
Tool Holder ◽  
Cnc Milling Machine ◽  
Milling Machines ◽  
Sheet Metal Workpiece

Incremental forming can be usually unfolded either on CNC milling machine–tools or serial industrial robots. The approach proposed in this paper tackles the problem of designing a modular fastening system, which can be adapted for both above mentioned technological equipment. The fastening system of the sheet–metal workpiece is composed of a fixing plate and a retaining plate. The fixing and retaining plates will be made up of different individual elements, which can be easily repositioned to obtain different sizes of the part. Moreover, the fastening system has to be able to be positioned either horizontally (to be fitted on CNC milling machines) or vertically (to be fitted on industrial robots. The paper also presents the design of a tool–holder working unit which will be fitted on KUKA KR 210 industrial robot. The working unit will be mounted as end–effector of the robot and will bear the punch, driving it on the processing toolpaths.

Control of Machine Tools and Robots

1986 ◽  
Vol 39 (9) ◽  
pp. 1331-1338 ◽  
Author(s):  
Yoram Koren
Keyword(s):  
Machine Tools ◽  
Degrees Of Freedom ◽  
Feedback Loop ◽  
Control Structure ◽  
Industrial Robots ◽  
Cnc Machine Tools ◽  
Cnc Machine ◽  
Control Schemes ◽  
Position Feedback ◽  
Recent Developments

The principal control structure of CNC machine tools and industrial robots is similar, since in both systems each axis of motion is separately controlled with a position feedback loop. Nevertheless, the control of robots is more complex, since they include more degrees of freedom and the motion of each joint is not independent of other joints. This paper compares the conventional control schemes of both systems, and summarizes recent developments in adaptive control of machine tools and robots.

Analysis of Position for the 4-PUU Parallel Manipulator

2012 ◽  
Vol 220-223 ◽  
pp. 1757-1760
Author(s):  
Shu Hua Sun
Keyword(s):  
Machine Tools ◽  
Parallel Manipulator ◽  
Three Dimensional ◽  
Parallel Robots ◽  
Industrial Robots ◽  
Rehabilitation Robot ◽  
Analytic Geometry ◽  
Forward Solution ◽  
Numerical Examples ◽  
Set Up

An original 4-PUU parallelManipulator with three-dimensional translations and one rotational motion about Z axis was presented. Its positional inverse modals were set up by using the conversion of coordinates and projection in analytic geometry, and the method of the forward solution of theManipulator and corresponding numerical examples were given.This methods were verified by using MATLAB software,which can provide the basis for studying the parallel robots work space. And it has wide application in the fields of industrial robots, micromanipulators, virtual axis machine tools, damping platform, rehabilitation robot and other fields.

Binderless-cBN as Cutting Material for Ultra-Precision Machining of Stainless Steel

2014 ◽  
Vol 1018 ◽  
pp. 107-114 ◽  
Author(s):  
Julian Polte ◽  
Mitchel Polte ◽  
David Lorenz ◽  
Dirk Oberschmidt ◽  
Heinz Sturm ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Surface Quality ◽  
Wear Mechanisms ◽  
Machine Tools ◽  
Experimental Studies ◽  
High Potential ◽  
Precision Machining ◽  
Workpiece Material ◽  
Ultra Precision ◽  
Direct Cutting

The ultra–precision cutting of steel materials is possible but needs modifications of machine tools or the workpiece material. One approach of actual research is the development of cutting materials that gives the opportunity for direct cutting of surfaces with ultra–precision quality. Binderless–cBN is here one of the most promising materials. The paper shows results of experimental studies with binderless–cBN as cutting material while turning stainless steel. Various investigations were carried out to determine the wear mechanisms. Furthermore, measurements are shown regarding the surface quality. The achieved results show the high potential ofbinderless–cBN as cutting material for the machining of steel.

Operational Production Structures Used in the Multi-Serving System

2012 ◽  
pp. 398-422
Author(s):  
I. C. Dima ◽  
Jozef Novac-Marcincin
Keyword(s):  
Flexible Manufacturing ◽  
Machine Tools ◽  
Manufacturing Systems ◽  
Flow Line ◽  
Labour Force ◽  
Industrial Robots ◽  
Technological Parameters ◽  
Manufacturing Cells ◽  
Organisational Form ◽  
Discontinuous Flow

In terms of organisation, the production achieved by polyservice of machines and equipment implies the existence of some independent organisational links. The organisation of the polyservice activity by departments and workshops inside of which great importance should be given to the system of grouping the machines and equipment, studying the optimal conditions to locate them. Organising the production by single or multiple object, continuous or discontinuous flow, manufacturing lines takes into account: the parameters of the flow line, parameters concerning the labour force, the parameters of the machine-tools, technological parameters, etc. Another form of organising the production obtained through polyservice is the production departments in the composition of which there are numerically and automatically controlled machine tools. Organising the production obtained through polyservice may also be done in production departments, in the composition of which there are the transfer machine-tools, processing centres, and manufacturing cells. Organising the flexible manufacturing systems takes into account: the number of benchmarks that will be processed, reduction of the duration to design and make new products, typification and modulation of SDVs, equipping the machines and equipment with standardised SDVs, etc. The most efficient organisational form is the production departments in the composition of which there are the flexible manufacturing cells provided with industrial robots.

Industrie-4.0-Nachrüstkit für Werkzeugmaschinen/Modular solution for condition-based maintenance and process monitoring – Industry 4.0 retrofitting kit for machine tools

2020 ◽  
Vol 110 (07-08) ◽  
pp. 491-495 ◽  
Author(s):  
David Barton ◽  
Reinhard Stamm ◽  
Sebastian Mergler ◽  
Cedric Bardenhagen ◽  
Jürgen Fleischer
Keyword(s):  
Process Monitoring ◽  
Machine Tools ◽  
Industry 4.0 ◽  
Economic Benefit ◽  
Industrie 4.0 ◽  
High Potential ◽  
Condition Based Maintenance ◽  
Machining Processes ◽  
Software Modules ◽  
Roll Out

Industrie 4.0 verspricht ein hohes wirtschaftliches Potenzial für produzierende Unternehmen. Allerdings wird dieses in bestehenden Werkzeugmaschinen bisher nur wenig ausgeschöpft. Um das Ausrollen von Funktionen für die zustandsorientierte Instandhaltung und die Überwachung des Bearbeitungsprozesses zu ermöglichen, wurde ein modulares Nachrüstkit entwickelt. Mit dem Kit können Maschinen individuell um Hardware- und Softwarebausteine erweitert werden.   Industry 4.0 offers manufacturers a high potential for economic benefit. However, this potential is only rarely exploited in existing machine tools. To enable the roll-out of functions for condition-based maintenance and monitoring of machining processes, a modular retrofitting kit has been developed. This kit allows machines to be individually upgraded with hardware and software modules.

Individuelle Fertigung durch den Einsatz von Industrierobotern*/Individual production through the use of industrial robots - Technology with the potential to revolutionize the production

2016 ◽  
Vol 106 (07-08) ◽  
pp. 470-476
Author(s):  
E. Prof. Uhlmann ◽  
S. Reinkober ◽  
C. Mohnke
Keyword(s):  
Machine Tools ◽  
Cyber Physical Systems ◽  
Industrial Robots ◽  
Production Chain ◽  
Physical Systems ◽  
The Core ◽  
Self Organized ◽  
Production Technologies ◽  
Manufacturing Technologies ◽  
Flexible Fabrication

Industrie 4.0 – die Produktion der Zukunft und die flexible Herstellung kundenindividueller Produkte: Doch neben der Nutzung von cyberphysikalischen Systemen und der intelligenten Vernetzung sind es am Ende noch immer die Fertigungstechnologien und Anlagensystem, die ein Bauteil herstellen. Neben den 3D-Druckverfahren, die das Portfolio an verfügbaren Herstellungsprozessen signifikant erweitern, bietet auch der Einsatz von Industrierobotern ein großes Potenzial, die Fertigung zu revolutionieren. Sich autonom bewegende und selbst organisierende Bearbeitungsmaschinen, die jeden Schritt der Produktion an beliebigen Stellen der Herstellungskette realisieren können, erscheinen realistisch. Der Fachartikel fasst zusammen, welche Potenziale und Möglichkeiten die robotergeführte Bearbeitung bereits heute bietet und welche Hindernisse es zu überwinden gilt.   Industry 4.0 – Production of the future and the flexible fabrication of customized products. But beside the use of cyber physical systems and the intelligent linkage of machine tools, the manufacturing technologies and machine tools are the core of each production chain. 3D-printing technologies for example significantly expand the portfolio of production technologies. Furthermore the usage of industrial robots for machining tasks can fundamentally change today’s production. Autonomously moving and self organized machine tools based on robot guided machining seem to be possible. The article sums up the potentials and possibilities of the robot guided machining and shows the current obstacles.

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