VOLLMER VGrind 340S – SUPERIOR IN EVERY WAY AN ENTICING OPTION, DOWN TO THE SMALLEST DETAIL

WALL CONCEPT

Very rigid, compact construction with optimal accessibility and overview for the operator.

MULTI-LEVEL MACHINING

Two vertical grinding spindles with the grinding wheel set at the C-axis pivot point. Reduced machining times thanks to shorter linear-axis travel distances.

MODERN CONTROL DESK CONCEPT

Height-adjustable, with touchscreen, 19" diagonal screen size and optimum view into the machining chambers.

NUMROTOplus®

The reliable, intuitively operated software with 3D tool and machine simulation, combined with collision monitoring.

GRINDING-WHEEL CHANGER

Provides even more flexibility in your manufacturing processes – with eight HSK-50 grinding wheel sets. Both grinding spindles can be loaded with complete flexibility.

AUTOMATION

Such as with the VOLLMER HP 170 pallet magazine or the HPR 250 free-arm robot for increased capacity and flexibility.

THE GREATEST PRECISION FOR EVEN THE SMALLEST OF TOOLS

Vertical multi-level machining that sets new standards. The precision and efficiency of the VGrind series is now also available for rotationally symmetric solid carbide tools in the 0.3 mm to 12.7 mm range. The VGrind 340S: A five-axis grinding machine that is equipped with all the attributes that modern tool manufacturing requires. And, what's more, there are plenty of intuitive details for the production of small sizes to boot. New linear induction motors on the x, y and z axes provide a clear increase in performance. The result: Even greater precision, for an even better surface quality.

THE APPLICATION

The VGrind 340S was designed to produce carbide drills and milling cutters with a diameter ranging from 0.3 to 12.7 mm. The high flexibility provided by the possibility to change both grinding wheel packages, the reduced changing times thanks to the positively guided system and the meaningful automation options provide the best prerequisites for efficient and high-quality manufacturing.

THE MACHINE CONCEPT

Precision and efficiency squared: This principle is also followed by the VGrind 340S – thanks to two vertically arranged grinding spindles. This principle is complemented by several useful details and options for machining small radii. The result: Maximum perfection at the lowest tolerances.

Five-axis CNC grinding machine with innovative kinematics
Two grinding spindles situated one above the other with the grinding wheel set positioned at the C axis pivot point – for ensuring extremely precise grinding results
The vertical spindle arrangement solves the well-known problems related to fixed and floating bearings
New wear-free linear induction motors on the X, Y and Z axes not only guarantee lasting consistency of quality and lower maintenance costs, but are also the key to improved surface quality
Innovative wall concept with the highest possible rigidity and outstanding damping thanks to polymer concrete
Equipped with a tool steady rest as standard for the best radial run-out quality on the tool, as well as linear scales for even greater precision
Effective motor and spindle cooling concept for higher thermal stability and lasting power and precision
Both spindles can be fitted with various different grinding wheel sets. The automation option ensures seamless conversion

Flexible automation options for loading of carbide tools
Grinding spindle available with a motor or belt drive
Automatic changing of grinding wheel sets complete with coolant nozzles for optimum productivity
Automatic gripper compensation as an in-process solution: Maximum precision when loading and unloading tools and reduction sleeves for decreased wear and optimal radial run-out
Internal grinding wheel dressing device: For consistently optimal radial and axial run-out
Wheel probe: Grinding wheel alignment and wear control within the machine
Automated changing of intermediate sleeves with bayonet
Automatic sticking unit enables the abrasive coating to be opened during production
Simultaneous grinding wheel package and tool change in combination with the HP 160 pallet magazine for reduced non-productive times during loading

THE OPERATING CONCEPT

In order to be able to exploit the full potential of your VGrind 340S, simple and intuitive operation is a fundamental prerequisite. This begins with the control desk, which is positioned so that not only the LCD display, but also the working area can be always be observed in the best possible manner. Operation via the keyboard or touchscreen allows for precise machining of the tool. The multifunction handwheel ensures even more flexibility: It can be freely positioned on the enclosure and is designed for setting a required axis – without using the control desk. In short: With the VGrind 340S, it becomes a simple pleasure to achieve the best results.

ERGONOMIC OPERATION

Flexible, height-adjustable and tilting control desk
Variable multifunction handwheel, optimal machine access
Easy access to grinding spindles

SOFTWARE NUMROTOplus®

VOLLMER consciously opted for a mature system that is already established on the market. The logically structured interface guarantees intuitive handling. With established programming systems, a huge variety of tools can be manufactured and resharpened. As a result, every detail on individual tools can be altered and adapted to individual needs. Fully informed: Thanks to a perfect 3D diagram of the tool and machine. And with collision monitoring, you can always stay on the safe side.

Developing
Simulating
Monitoring
Producing
Trade fairs
Resharpening
Documenting

AUTOMATION

One of the key factors in modern tool production is automating the work processes. The VGrind 340S therefore features a range of useful configuration options that allow you to implement large batches of small tools and make your manufacturing processes more precise, quicker and safer.

With the various automation options that are available, the VGrind 340S can be optimally adjusted to your requirements.

HP 160 pallet magazine with compact pallets and double gripper to guarantee a quick change between short machining times. For the quick supply of up to 900 tools.
HPR250 free-arm robot: Allows for the automatic machining of tools with various shaft diameters. For increased capacity and even greater flexibility.

Always supply the right grinding wheel – with no manual intervention required: The optimum automation system for eight grinding wheel sets. If required, this can also include the coolant nozzles on both grinding spindles. This is a vital contribution to productivity within your manufacturing process.

// Eight-tool grinding-wheel changer including coolant nozzles

Danish tool manufacturer puts its trust in VOLLMER

The Danish tool manufacturer's name, TN Værktøjsslibning, is a bit of a mouthful, so they often shorten it to TN Slib. The word "Værktøjsslibning" means "tool grinding" in English, and that is exactly what the company does: It produces coated, solid carbide milling cutters and drill bits, which can be made to order or can be chosen from more than 50 standard models. It also offers resharpening services and advice. At the beginning of 2020, TN Slib decided to purchase the VGrind 340S tool-grinding machine, which VOLLMER had brought to market a year earlier. The VGrind 340S is a newer iteration of the time-tested yet highly innovative machine concept on which the VGrind series is based.

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