Walter Helitronic micro grindnig machines

Creating Tool Performance

A member of the UNITED GRINDING Group

HELITRONIC MICRO

The high-precision system for small tools

WALTER

SOLUTIONS

Grinding, Eroding, Laser Measuring software, Customer Care

Walter Maschinenbau GmbH

WALTER has produced tool grinding machines since 1953. With the introduction to the market of the HELITRONIC series for the complete machining of rotationally symmetrical tools, WALTER became the leader of the world market. Today, our product range is supplemented by fully automated CNC measuring machines in the HELICHECK series for contactless complete measurement of tools and production parts.

Walter Maschinenbau GmbH is part of the UNITED GRINDING Group within Köber AG, which has significant financial strength and well-tested processes. Together with our sister company, Ewag AG, we consider ourselves to be a supplier of systems and solutions for the complete machining of tools and can offer a wide range of products, including grinding, rotary eroding, laser machining, measurement, and software.

Our customer focus and our global sales and service network of company-owned locations and employees have been appreciated by our customers for decades.

WALTER HELITRONIC MICRO

The HELITRONIC MICRO at a glance

Application: The machine Grinding rotationally symmetrical tools with small to the very low vibration, solid mineral cast, gantry-type construction smallest diameters for innovative industries such as in the medical, dental, optical, precision engineering, automotive engineering, avionics X, Y, Z linear axes with linear drives For production and/or regrinding Rotating A, C axes with high-torque motors Fully automated, complete machining with only a Motor-driven spindle with three spindle ends single clamping cycle Each spindle end can take up to three grinding wheels Machinable materials include HSS, carbide, cermet, ceramic FANUC, the global standard for control equipment Integrated FANUC robot loader Numerous efficiency options

WALTER HELITRONIC MICRO

HELITRONIC MICRO with an integrated FANUC robot loader.

WALTER HELITRONIC MICRO

Software

HELITRONIC TOOL STUD10, CAD/CAM software for design, programming, simulation, and production Numerous software options to extend the system's performance and to increase its efficiency

Small tools represent a growing market a market for you to exploit

With the HELITRONIC MICRO, WALTER extends your product range for the production and regrinding of the smallest tool diameters. The HELITRONIC MICRO grinding machine produces very precise results for tools in the diameter range from 0 to 2 mm when producing new tools and from 0 to 3 mm when resharpening.

As an automatic 5-axis CNC machine with two additional positioning axes, the HELITRONIC MICRO is predestined for the complete machining of demanding geometries for micro tools in a single clamping cycle. All seven axes are equipped with linear/torque drives and are controlled via the integrated high-resolution measurement system. This produces exact movements while maintaining very dynamic performance. Due to its rotating workpiece axis A with a fast max. speed of 1,000 rpm, the HELITRONIC MICRO can precisely grind cylindrical shapes, particularly for multi-step tools.

WALTER gantry design

The HELITRONIC MICRO with its mineral cast machine bed was especially designed for this range of applications. This CNC machine offers you optimum damping of vibrations, it is insensitive to temperature fluctuations, it has a dynamic drive system and ultimately offers precision grinding.

WALTER HELITRONIC MICRO

Standard equipment for peak performance

With 3 motor spindles for up to 12 grinding wheels, the HELITRONIC MICRO is designed for flexible use.

WALTER HELITRONIC MICRO

CNC controlled X axis Automatic positioning and measurement

The X-axis is used to automatically and precisely move the tools to be machined to the correct position of rotation. This leads to short traverses and increases the precision. This is a vital requirement for productivity and quality.

Integrated FANUC robot loader Shank/support steady option

The grinding times for micro tools are highly precise and short. All the more important is thus the precise and reliable grinding results for tool changing. For the HELITRONIC MICRO, WALTER has integrated a 6-axis loader into the machine which reduces the loading time to a minimum. Capacity for up to 1,500 tools.

Example tools from left to right: Conical end mill, bone drill, medical milling tool, medical drill, micromilling tool, microdrill, internal turning tool, burr, blade, drill

0 CNC controlled X axis O Automatic positioning and measurement system He1i-Probe Integrated FANUC robot loader 0 shank/support steady option

HELITRONIC MICRO

Application software for tool machining

HELITRONIC TOOL STUD10 adds operational and movement sequences for both rotationally symmetrical standard tools. Convenience to all grinding applications and for special tools can be programmed by the operator. The tool shown in the corresponding screen corresponds exactly to the tool which will then be produced. According to the tried and tested method of "What you see is what you grind," this means that, as early as the design phase, the result can be checked and, if necessary, corrected thanks to the true-to-life 3D simulation. The operator can quickly find the tool type, the parameters to be entered. HELITRONIC TOOL STUD10 provides program packages for all standard tool families, which make handling significantly easier.

WALTER HELITRONIC MICRO

Efficiency options

Feedrate Optimizer Tool Balancer Integrated Measuring System 1MS

This enhancement to the HELITRONIC TOOL STUDIO provides the ideal options for feed control and for monitoring the grinding wheel and machine load. Depending on the tool type, the time savings can be up to 30%. Feed optimization uses the findings entered into the HELITRONIC TOOL STUDIO to analyze the center of mass and the other uses a non-contacting method to analyze the center of mass and the other to balance out if necessary, center-cutting outside diameter, rake angle, and core diameter can be measured using the probe ball without having to unclamp the tool. By setting the tolerances, HELITRONIC TOOL STUDIO can compensate for any deviation of the measured values.

TOOL STUD1O in relation to grinding movements to, automatically balance the tool using dif- by thermal growth or wheel wear-and-tear, and the grinding wheel and tool simulation modernization techniques. The approach is simple andand adjust to the nominal measure and thus in order to calculate the current grinding wheel be mastered with just a few mouse clicks. prevent scrap. The operator no longer needs and machine loads and set the optimum feed Analysis during the development phase meant to make active adjustments and the dressing any time. Movements with low wheel loads with that the process of prototype production of the grinding wheels remains constant. be accelerated and, this is particularly important, significantly shortened. Balanced tools have aBoth increase the efficiency, especially when it movements where the desired wheel load is longer tool life, can machine at higher speeds, comes to large-volume production. exceeded are slowed down. Even existing loads conduct higher-quality surfaces and result in be conveniently optimized with just one click. less wear-and-tear. Asymmetrical tools are First, the profile of the grinding wheel load is well-suited to machining processes with high determined via a progressive simulation analysis. rotation speeds up to a point where significant Then, the feed is optimized in such a way that imbalance forces occur. the wheel load remains constant during the entire processing run. Adaptive Control By permanently comparing the machine load- ing, grinding can be made more efficient and simultaneously safer. If the load increases, the feed will be decelerated accordingly. If the load decreases, the speed is increased accordingly. With AC grinding, alternating loads on the grind- ing wheels will be prevented by a continual load. Any possible overloading of the grinding wheels is excluded. 10 WALTER HELITRONIC M1C Global standard of control technology With the FANUC control unit, WALTER relies on the global standard of control technology. For the user, this means the highest degree of reliability, availability, and operating comfort. WALTER, HELITRONIC M1C Customer Care WALTER and EWAG deliver systems and solutions worldwide for all areas of tool machining. Our leadership is based on ensuring maximum availability of our machines over their entire Commissioning service life. For this, we have thus bundled numerous services Extension of the guarantee in our customer care program. From Start up through Prevention to Retrofit, our customers enjoy tailor-made services for their particular machine configuration. Around the world, our customers can use helplines, which can generally solve a problem using remote service. Additionally, you will also find a competent service Support for production team in your vicinity around the world. For our customers, this means: Our team is close by and can quickly be with you. Our team will support you to improve your productivity. Our team works quickly, focuses on the problem and its Prevention work is transparent. Maintenance Our team solves every problem in the field of machining Inspection tools, in an innovative and sustainable manner. Service Customer service Customer advice Helpline Remote service Material Spare parts Replacement parts Accessories Rebuild Machine overhauling Refurbishing of assemblies Retrofit Conversions Retrofitting parts Taking machines back WALTER HELITRONIC M1C Technical data, dimensions Mechanical axes Tool data X axis 385 mm Min. tool diameter Y axis 320 mm production/resharpening mm Z axis 320 mm Max. tool diameter mm X axis 110 mm Max. workpiece length, peripheral grinding 120-300 mm Rapid traverse speed X, Y, Z max. 30 m/min Max. workpiece length, end face grinding 120-300 mm L axis 200 Max. workpiece weight 12 kg A axis 1,000 rpm Robot loader B axis 140 Linear resolution mm Tool capacity depending on the diameter up to 1,500 Radial resolution Options Grinding spindle drive Coolant system Max. grinding wheel diameter 150 mm Grinding spindle speed 0-10,500 rpm On request, several types are possible HELITRONIC M1C with motor spindle Others spindle ends 3 Automatic support steady, software, etc. Tool holder HSK 40 Peak power Others Machine weight approx. 6,000 kg Power consumption at 400 V/50 Hz approx. 25 kVA HELITRONIC M1C with integrated robot loader The maximum tool dimensions depend on the type of tool and Measurements in mm. Subject to modifications due to technical progress and errors. its geometry, as well as the type of machining. We accept no responsibility for the correctness of any information given From the theoretical taper diameter of the workpiece holder. WALTER HELITRONIC M1C Creating Tool Performance WALTER and EWAG are globally leading market-oriented technology companies and are system and solution partners for all areas of tool machining. Our range of services is the basis for innovative and demanding productivity. Grinding Grinding of rotationally symmetrical Grinding Grinding of indexable inserts tools and workpieces Tool dimensions Indexable inserts WALTER machines Use Materials/diameter EWAG machines Use Materials Inscribed