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NC56/28.17 Laser

Item number: NC56/28.17

The machine NC 56 laser is based upon the Arnold standard glassworking lathe NC56.

 

This numerically controlled precision glassworking lathe is especially suitable for laser applications, like for instance joining or forming larger tubular workpieces, e.g. in the solar industry or in the chemical apparatus construction industry. The machine disposes of an extremely sturdy and torsion-free machine bed as well as a separate drive technology for each working head. The laser device with the required cooling aggregate is adapted as separately positioned unit. Via beam deflectors an economic operation of several machines with only one laser system is possible. Machine can be operated either in manual or in automatic process – for instance with  an automatic loading and unloading system of workpieces.

 

Machine design

Compact system design including standard glassworking lathe

_ NC56, laser aggregate with beam control up to workpiece, cooling

_ as well as all necessary protection devices for a safe operation

_ of machine according to laser safety prescriptions.

Excellent machine accuracy achieved by the use of heavy and

_ torsion-free machine bed in welded steel design, use of precision

_ linear guides, pre-clamped ball drive as well as precise machine

_ elements and most modern drive concepts with high moving

_ speeds of individual axes.  The stable design of the entire

_ machine guarantees a high reproducibility of all working process

_ flows.

Closed stainless steel cover above bed guidance for protection

_ against dirt and influence of heat.

Moveable machine parts – working head left and right - are

_ mounted on pre-loaded guiding wagons. Working heads are

_ equipped with ring chucks in standard execution.

Including all required laser protection devices with two manual

_ sliding doors in the feeding sector of worker for an easy

_ access to processing range. Protection guarantees a safe

_ operation of laser device according to relevant safety prescriptions.

Options for standard equipment

_ 1. Pneumatic chuck operation for automatic opening and closing

_ _. of quick acting chucks.

_ 2. Glassworking lathe NC56 with beam deflector for laser for an

_ _. economic operation at several machines that means, while one

_ _. machine is loaded/unloaded, the automatic processing is done

_ _. at second machine.

_ 3. Additional NC-controlled workpiece support for the acceptance

_ _. of, for instance, single or multiple forming tools with changing

_ _. system for forming glass tubes or also for tube end processing

_ _. purposes with reaming tools.

_ 4. Rotary feedthrough for supply of vacuum or blowing air for

_ _. forming process.

_ 5. Automated loading and unloading equipment according to

_ _. customer’s or project’s requirements.

 

Drive technology

Each spindle stock is equipped with an own a.c.-servo-motor

_ running the spindle directly via toothed belt.

Synchronous drive of both spindle stocks (standard operation)

Individual drive of spindle stock

In both cases a reversing operation is possible (switchable

_ turning direction)

Drive of working spindles guarantees an exact control even in

_ lower speed ranges

Working heads equipped with own, one each a.c. servo motor

_ and integrated way- measuring-system. Positioning of working

_ heads is freely programmable via machine control.

 

 

Laser technique and beam control

Rofin Sinar DC-series diffusion cooled CO2-laser, mounted

_ according to slab principle with an output power of 1000 W

_ (as an option up to 4500 W, also possible). The slab-laser

_ does not require conventional gas recirculation thus it is

_ working very economically. Gas supply is done via a gas‚

_ bottle integrated in the laser, hence you do not need external

_ gas supply. Because of the excellent beam quality, the laser

_ is best suitable for both: joining and cutting.

Cooling aggregate for cooling down of process cooling water,

_ for cooling down electrode plates in laser. Cooling is done in

_ form of recirculation operation.

Beam control via mirror system starting at releasing point via

_ focusing optics up to the workpiece.

Option: Focusing optics with automated positioning axis. This

_ also enables a forming of laser beam for different

_ applications, like for instance automatic focal point adjustment

_ on different diameters of construction point or changing

_ operation: cutting – joining – forming.

 

Adjustment and control technique

Control of machine is done with a Siemens Simatic

_ S7-PLC-control unit, integrated in the control cabinet.

Process programming and –visualization via Lenze OPC

_ Touch Panel.

Programming via Arnold AEPS (Arnold Easy Panel System).

_ Process parameter and process running can be programmed

_ by, e.g. process specialists, without any basic knowledge of

_ PLC programming languages.

Pyrometer for surveillance of controlled process running

_ during heating and joining period, for reproducible process

_ characteristics during automated constant operation.

Camera system for automatic glass edge measurement

_ and positioning of the workpieces which shall be joined in

_ the focus of laser with the following features:

_ - automatic glass edge detection for optimal axial

_ - positioning in the focus of laser

_ - automatic joining gap optimization – radial positioning

_ - of joining parts to each other to minimize the dimension

_ - of joining gap

_ - automated axial feeding – dependant on joining gap of

_ - working heads in order to prevent faulty positions during

_ - joining process

_ - integrated 100%-process control to check joining zone if

_ - there are missing points after joining

Option: ARPAT (Arnold Remote Process Analyse Tool) for

_ documentation of all available construction- and process data

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