A study on the Design of Drum Type Automatic Tool Changer

Abstract The purpose of this paper is to present a design methodology for the configuration synthesis of machining centers with automatic tool changer to meet the required topology and motion characteristics. According to the concept of coordinate systems, graph theory, generalization, specialization, and motion synthesis, this design methodology is proposed and computerized, and the machining centers with automatic tool changer up to eight links are synthesized. As the result, for the machining centers with drum type tool magazine, the numbers of configurations of machining centers with 6, 7, and 8 links are 2, 13, and 20, respectively. And, for the machining centers with linear type tool magazine, the numbers of configurations of machining centers with 5, 6, 7, and 8 links are 1, 5, 20, and 60, respectively. Furthermore, this work provides a systematic approach for synthesizing spatial open-type mechanisms with topology and motion requirements.

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A novel framework for diagnosing automatic tool changer and tool life based on cloud computing

Advances in Mechanical Engineering ◽

10.1177/1687814016637319 ◽

2016 ◽

Vol 8 (3) ◽

pp. 168781401663731

Author(s):

Shang-Liang Chen ◽

Chin-Fa Su ◽

Yin-Ting Cheng

Keyword(s):

Cloud Computing ◽

Tool Life ◽

Automatic Tool Changer ◽

Automatic Tool

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Application of Tree Graph Method for Reducing the Total Time of Tool Changing in Milling and Boring Machine Tools

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.371.431 ◽

2013 ◽

Vol 371 ◽

pp. 431-435 ◽

Cited By ~ 1

Author(s):

Claudiu Obreja ◽

Gheorghe Stan ◽

Lucian Adrian Mihaila ◽

Marius Pascu

Keyword(s):

Machine Tools ◽

Design Method ◽

Machining Process ◽

Cnc Machine Tools ◽

Tree Graph ◽

Cnc Machine ◽

High Productivity ◽

Automatic Tool Changer ◽

Automatic Tool ◽

Set Up

With a view of increasing the productivity on CNC machine tools one of the main solution is to reduce, as much as possible, the auxiliary time consumed with the set-up and replacement of the tools and work pieces engaged in the machining process. Reducing the total time of the tool changing process by the automatic tool changer system can be also achieved through minimizing the number of movements needed for the actual exchange of the tool, from the tool magazine to the machine spindle (the optimization of the tool changing sequences). This paper presents a new design method based on the tree-graph theory. We consider an existing automatic tool changing system, mounted on the milling and boring machining centre, and by applying the new method we obtain all the possible configurations to minimize the tool changing sequence of the automatic tool changer system. By making use of the method proposed we obtain the tool changing sequences with minimum necessary movements needed to exchange the tool. Reconfiguring an existing machine tool provided with an automatic tool changer system by making use of the proposed method leads to obtaining the smallest changing time and thus high productivity.

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Smart Machine Box with Early Failure Detection for Automatic Tool Changer Subsystem of CNC Machine Tool in the Production Line

10.1109/iecon48115.2021.9589868 ◽

2021 ◽

Author(s):

Shang-Chih Lin ◽

Shun-Feng Su ◽

Yennun Huang

Keyword(s):

Machine Tool ◽

Production Line ◽

Failure Detection ◽

Cnc Machine Tool ◽

Cnc Machine ◽

Early Failure ◽

Automatic Tool Changer ◽

Automatic Tool ◽

Smart Machine

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Sparse representation of transients based on parametric multiple impulse dictionary for impact feature extraction of automatic tool changer system

Measurement Science and Technology ◽

10.1088/1361-6501/abd3bf ◽

2020 ◽

Author(s):

Guofa Li ◽

Yongchao Huo ◽

Jialong He ◽

Yanbo Wang ◽

Zhaojun Yang ◽

...

Keyword(s):

Feature Extraction ◽

Sparse Representation ◽

Automatic Tool Changer ◽

Automatic Tool

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Braking Solution for a Hydraulically Driven Linear Pallet Changer Mechanism

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.657.485 ◽

2014 ◽

Vol 657 ◽

pp. 485-489

Author(s):

Lucian Mihăilă ◽

Gheorghe Stan

Keyword(s):

Medium Size ◽

Kinematic Parameters ◽

Two Stage ◽

High Productivity ◽

Counter Pressure ◽

Pressure Limitation ◽

Automatic Tool Changer ◽

Hydraulic Cylinders ◽

Automatic Tool ◽

Set Up

The use of machining centres is predominant in the case of small and medium size batch manufacturing, their advantages being materialised in high productivity. The productivity is owed, mainly, to the small auxiliary times consumed with the tool and material change, times which are served by the automatic tool changer system and the automatic pallet changer. The purpose of this article researches aims to determine the kinematic parameters of an hydraulically driven linear pallet changer in two cases (when the deceleration is carried out through a throttle and when the deceleration is made through a new solution). Thus, an experimental set-up, which matches an hydraulically driven linear pallet changer, was designed and built. The experiments aimed toward using a classic braking method of hydraulic cylinders and a new two-stage braking with counter-pressure limitation.

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An Improved Design of the Manipulator on Automatic Tool Changer

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.591-593.259 ◽

2012 ◽

Vol 591-593 ◽

pp. 259-262

Author(s):

Yan Sheng Li ◽

Yan Heng Zhang ◽

Han Xu Sun ◽

Hai Yang Dong ◽

Shun Li Zhao

Keyword(s):

Limit State ◽

Three Dimensional ◽

Output Curve ◽

Dimensional Model ◽

Three Dimensional Model ◽

Automatic Tool Changer ◽

Automatic Tool ◽

Improved Design ◽

The Stability

The tool falling and vibration faults often occur in the process of tool changing, In order to improve the stability of the tools on automatic tool changer, a new structure of the manipulator is presented. The new manipulator contains two-point locking instead of the original one-point locking, and the tools can be clamped more tightly. When the old manipulator is slotting the tool, the forces are analyzed, and the working load and parameters is determined by calculating and analyzing the output curve of manipulator. The three-dimensional model is built in ADMS, and the validity of the new designed manipulator is verified by the simulation in a limit state. The simulation result shows that the new manipulator can increase the ability of tool clamping effectively.

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