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igus® Vietnam Company Limited

Unit 4, 7th Floor, Standard Factory B, Tan Thuan Export Processing Zone, Tan Thuan Street

District 7, HCM City, Vietnam

+84 28 3636 4189
VN(VI)

Compact energy chains in Alzmetall machining centres

For tight bend radii at high travel speeds, the GS series uses our e-chains

The GS series of machining centres from Alzmetall is characterised by high dynamics and precision; it is mainly used for demanding machining tasks in high-volume production, tool and mould making, prototype construction and in the aviation industry. Alzmetall has found a solution for the energy supply to the spindle that is both economically and technically convincing: They obtain a harnessed, ready-to-install energy chain system from igus.
  • What was needed: Assembled readychain systems from igus consisting of E4/4 light energy chains and associated chainflex cables, iglidur plain bearings
  • Requirements: High travel speeds and accelerations, compact installation situation requires narrow bend radii, continuous load
  • Industry: Machine tool manufacturing
  • Success for the customer: The E4/4 light energy chain offers exceptionally compact external dimensions and is at the same time particularly robustly built; the readychain system saves assembly time and costs and makes installation considerably easier for the customer.
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Alzmetall machining centre Alzmetall adds a "small" model to the successful GS series: The GS 650 also offers high precision and high machining speeds.

Products used

Problem

The Alzmetall GmbH in Altenmarkt, which is known as a market leader in the metalworking industry, has built up a range of machining centres since the 1980s that is in the upper segment in quality and performance. 
The GS 800 was added to the machining centre product family in 2001, which was expanded in 2005 with the GS 1000 and finally extended downwards in September 2006 with the GS series. Hans Jürgen Gizler: Division Manager Sales for CNC machining centres: "For users who demand precision and performance that cannot be met by conventional frame designs, we offer the new GS 650." The machine is designed as a true gantry system and is offered exclusively with highly dynamic and maintenance-free torque drives.
High accuracies (Tp=0.007) and high machining speeds stand for the use in single part production and in series, in tool and mould making as well as in general machine construction.
Integration into automated production systems can be implemented with a linear robot solution - the machine can be fully craned from above - as well as with a pallet changer or an articulated arm robot for loading from the front - e.g. also with a zero-point clamping system.
For other components, the company relies on "outsourcing", i.e. cooperation with efficient suppliers - for example, for the energy supply systems that supply the spindle with energy, data and coolant.
The high requirements result directly from the high performance rendered by the machine. In rapid motion, the spindle travels at up to 60 m/sec and achieves an acceleration of up to 10 m/sec2. In free space, acceleration values of up to 17 m/sec2 are required. But a high number of movement cycles under continuous load also place high demands on the quality of the cables and cable guidance.

Solution

Alzmetall used pre-assembled readychain cable packages from igus for the first time in the GS 800. Since the cooperation has proven successful, the GS 650 will also be equipped with readychain systems.
This choice not only reduces assembly time, but also contributes to the durability of the energy supply system. Because the chainflex cables were specifically developed for use in energy chains: They allow small bend radii - which also permits compact installation situations - and are characterised by a long service life even under continuous movement stress. This is an important criterion for Alzmetall, because the machines are very solidly constructed. The spindle, which operates at up to 30,000 min-1 requires a total of 50 to 60 energy and signal cables - including electrical cables for servo drives, hydraulic hoses for the tool clamp, encoder and measuring system cables as well as supply cables for coolant and a compressed air supply to blow out the spindle. The readychain systems save valuable assembly time in the process.
The energy chain system of the GS 650 provides mobility in three axes. The x-axis moves separately, while the y and z axis overlap. Installation is very simple, as all three chains end in a distribution box supplied by igus. The x-axis is designed horizontally and uses the upper machine cover as a support, on which it is supported by a bridge: a design detail that saves space and ensures optimum guidance of the chain. 
When developing the energy supply system for the GS 650, the project engineers benefited from the fact that a new energy chain series had just been launched on the market at that time: The E 4/4 light is characterised by very compact external dimensions ; the chain is 20 mm narrower with the same content. It was precisely these 20 mm that ensured that the chain remained within the machine contour during all movements. And despite the compact type and tight bend radii, the chains and with them the cables move at high speed.
"For the GS 800, we used pre-assembled "readychain" cable packages and energy chains from igus for the first time. The cooperation has proven successful, so the GS 650 will also be equipped with "readychain" energy supply systems."
 
Hans Jürgen Gizler, Division Manager Sales for CNC Machining Centres at  Alzmetall GmbH
Energy chain with chainflex cables The spindle of the machining centre must be connected to numerous energy, signal and media cables. This task is undertaken by the "readychain" energy chain systems.
energy chain An intelligent design detail: the x-axis of the energy chain is horizontal and uses the upper machine cover as a support. This saves space and ensures optimal guidance of the chain.

Also ideal for maintenance and retrofitting

Two variants were specified for the chain assignment: one for the standard versions of the GS 650, a second with additional cooling hoses for the more powerful spindle with 30,000 min-1. These versions, which are assembled in Cologne, are delivered by igus "just in time" to Altenmarkt. Of course, additional cables can be integrated into the chain if required. This can even be done retrospectively: an argument that also convinced the Alzmetall design engineers is the simple retrofitting of the energy chain if, for example, additional axes or minimum quantity lubrication is required. In this case, you simply snap open the individual chain links and place the cable in the channel provided for this purpose. 
The readychain energy chains in Alzmetall's production halls are hard to miss: The ready-assembled chain and cable packages, including distribution box, take up barely more storage space than a Euro pallet. In order to keep an eye out for other igus products that Alzmetall uses, one has to walk very attentively through the assembly in Altenmarkt - and one finds them: iglidur plain bearings made of high-performance polymers with "built-in" lubrication are used in the tool magazine holders.
Bạc lót trơn từ nhựa iglidur® hiệu năng cao
The smooth, low noise operation and the enormous cost advantages are obtained by the use of the drylin® R linear plain bearings on hard-anodized guide shafts to guide the doors of machine tools. As the guide systems operate dry, there are no maintenance costs. Due to the absence of lubricants, the chips cannot stick.
Maintenance-free, low-noise operation

Tư vấn

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Aw Kai Hua

Product Manager iglidur® bearings ASEAN

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igus® GmbH xin nhấn mạnh rằng mình không bán bất cứ sản phẩm nào của các công ty Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsubishi, NUM, Parker, Bosch Rexroth, SEW, Siemens, Stöber và mọi nhà chế tạo về chuyển động khác nêu trong trang web này. Các sản phẩm do igus® cung cấp là sản phẩm của igus® GmbH

CÔNG TY TNHH IGUS VIỆT NAM

Đơn vị 4, Tầng 7, Xưởng tiêu chuẩn B, Đường Tân Thuận, Khu Chế Xuất Tân Thuận, Phường Tân Thuận Đông, Quận 7, Thành phố Hồ Chí Minh, Việt Nam

Số điện thoại: +84 28 3636 4189

Giấy chứng nhận đăng ký doanh nghiệp số: 0314214531

Ngày đăng ký lần đầu: 20-01-2017

Nơi cấp: SỞ KẾ HOẠCH VÀ ÐẦU TƯ THÀNH PHỐ HỒ CHÍ MINH

IGUS VIETNAM COMPANY LIMITED

Unit 4, 7th Floor, Standard Factory B, Tan Thuan Street, Tan Thuan Export Processing Zone, Tan Thuan Dong Ward, District 7, Ho Chi Minh City, Vietnam

Phone: +84 28 3636 4189

Tax code: 0314214531

Date of issuance: January 20, 2017

Place of issuance: DEPARTMENT OF PLANNING AND INVESTMENT OF HO CHI MINH CITY