Machining examples
■ Reference surface of the machine tool bed and industrial machinery main body
The reference surface of such machines can be finished only by grinding. (Straightness: 0.86μm/2000mm)
■ Precision surface plate
Machining of even ultra-large flat surface with accuracy below the JIS Class 0
(Flatness of stone surface plate of “3000 x 2000mm”: 5μm)
■ Large die parts and machine parts (bolsters, etc.)
Submicron flatness even for meter-size workpiece (0.83μm/1400×860mm）
■ Long-size die parts, precision jigs and gauges
Use of universal head to finish a pentahedron by grinding enables innovative production.
Features
1. Double column grinder to achieve maximum accuracy
Super-precision double column grinder combined with Nagase original component grinding unit to achieve maximum accuracy.
Machine motion characteristics of securely transferring an NC command value of 1μm to the workpiece are achieved (min. infeed setting unit: 0.1μm).
2. Accurate machining for long periods of time
The non-contact and polyhedral constraint static guideway structure maintains accuracy for a long period of time without causing wear on the guideway. It also restricts twisting and distortion to provide the optimum structure for accurate machining of heavy workpieces.
3. Machining of single or double crowning, horizontal crowning and on-the-machine measurement
By combining the hydrostatic guide and super-precision linear motor drive technologies, the single or multi-crowning shape can be machined not only in the vertical direction but also in the horizontal direction. In addition, accurate on-the-machine measurement is possible by touch panel thanks to high positioning accuracy (optional).
4. Machine design based on the minute structure analysis
Compared with conventional models of the same class, superior rigidity is achieved. The machine has also been designed to withstand long hours of machining and changes in the ambient temperature environment.
5. Accurate pentahedron machining with universal head
In addition to surface grinding and grooving of large-size workpieces, highly accurate square surface grinding, inclined surface grinding, rear surface cutting/grinding and stepped surface grinding are possible. This accurate function has been widely utilized due to its capacity for innovative processes and improved quality in machining a variety of large workpieces.
6. From cutting through finishing and on-the-machine measurement
By mounting an automatic tool changer (ATC), preliminary machining using cutting tools such as fullback cutters and end mills through finish machining using different grinding wheels and on-the-machine measurement can be done automatically with a single one-chucking operation.
7. Construction of large-size super-precision machines incorporating a rotary table, automatic pallet changer, etc. not seen elsewhere
Development of an ultra-large rotary table of φ2700 (rotation accuracy: 0.2μm in axial direction, 0.5μm in radial direction), rotary grinding and ID grinding of large-diameter workpieces are possible with unprecedented accuracy. The high-precision automatic pallet changer also allows automatic machining, even during the night. In addition, various units and devices for improving productivity in large-workpiece machining have been developed.
■ Vertical infeed command value (1μm) follow-up accuracy and its verification workpiece
Accuracy of ±0.2μm to 1μm-vertical infeed command value
■ Non-contact hydrostatic guide structure
The non-contact and polyhedral constraint hydrostatic guide for operating a 30-ton table with only one finger (oil friction coefficient: 10-1)
■ Crowing verification accuracy (simultaneous 2-axis controlled machining)
(1) Shape error of 1.82μm for workpiece with convex (5mm/2m)
(2) Shape error of 2.03μm for workpiece with concave (5mm/2m)
* Finish machining is possible by automatically changing the grinding wheel, cutter, end mill, etc.
■ Machining by universal head
Rough machining through finish machining of each section is possible by automatically changing the grinding wheel, fullback cutter, end mill, etc. Machining of required sections, using the linear motor drive, is possible. Grinding of stepped workpieces is done precisely and automatically by clearing the stepped surface.
Options
■ on-the-machine measurement unit
By mounting an accuracy touch probe and electric micrometer, various kinds of on-the-machine measurement become possible.
■ Universal head
Grinding of pentahedron workpieces is possible. Various kinds of other machining are also possible by mounting different tools.
■ Machining by cutting tool unit
By mounting a fullback cutter, end mill, etc., accurate preliminary machining is possible.
■ Automatic grinding wheel changer
A variety of grinding wheels can be automatically changed depending on the finishing status and shape.
■ Large-size rotary table
Use of the large-size rotary table (φ2700) enables grinding of the top and inner surfaces.
■ Automatic pallet changer
The automatic pallet changer enables automatic machining during the night.
Series
■ORIGIN-12025: Machining area 12m × 2.5m
■ORIGIN-10025: Machining area 10m × 2.5m
■ORIGIN-5025: Machining area 5m × 2.5m
■ORIGIN-4025: Machining area 4m × 2.5m
Specifications
| Model/item | Size | Table work area | Vertical axis stroke | Max. loadable weight | Vertical/cross /longitudinal min. unit |
Grinding wheel size (OD x W x ID) |
|---|---|---|---|---|---|---|
| mm | mm | ton | mm | mm | ||
| ORIGIN | 2015 | 2000×1500 | 650 | 3 | 0.0001 | φ510×100×φ203.2 |
| 4025 | 4000×2500 | 1970 | 10 | 0.0001 | φ610×100×φ304.8 | |
| 5025 | 5000×2500 | 1800 | 7 | 0.00001 | φ760×150×φ304.8 | |
| 6026 | 6000×2600 | 1970 | 10 | 0.00001 | φ610×100×φ304.8 | |
| 8020 | 8000×2000 | 1800 | 20 | 0.00001 | φ610×100×φ304.8 | |
| 10025 | 10000×2500 | 1800 | 30 | 0.00001 | φ610×100×φ304.8 | |
| 10030 | 10000×3000 | 1800 | 30 | 0.00001 | φ610×100×φ304.8 | |
| 12025 | 12000×2500 | 1800 | 20 | 0.00001 | φ610×100×φ304.8 |
■ Contents and specifications are subject to change without prior notice. The contents of description and pictures may contain optional items. To place an order, check the manufacture specifications for detailed contents.
■ Actual machine accuracy and machining accuracy described on this site may differ depending on the measurement and machining conditions.
■ For further details, you may request specifications, technical information, etc.
■ For resale or export of the product, contact us in advance. Exporting products requires designated procedures as determined by the Foreign Exchange and Foreign Trade Control Law.
■ This product must not be transferred for any purposes of use that prevents international peace and security, or used for one’s own purpose or by any third party.
Link to related items
Inquiries
Customers who are thinking of introducing new facilities are welcome to ask us for test machining or to visit our factory. Please feel free to consult us. Inform us of your facility conditions, size and material of machining workpieces, machining time, etc., in details.
Sales personnel in your district will make a proposal designed to meet your requirements.
