ULTRA PRECISION DOUBLE COLUM HYDROSTATIC SURFACE GRINDING MACHINE(Multifunction Machine)
スパーギアからヘリカルギア、セレーションパンチ、スプラインゲージなど高精度な割出加工最適な超精密歯車研削盤NGC SERIES。「超精密研削盤」のナガセインテグレックス。
The reference surface of such machines can be finished only by grinding.
(Straightness: 0.86μm/2000mm)
Machining of even ultra-large flat surface with accuracy below the JIS Class 0
(Flatness of stone surface plate of "3000 x 2000mm": 5μm)
Submicron flatness even for meter-size workpiece (0.83μm/1400 x 860mm)
Use of swivel grinding wheel spindle to finish a pentahedron by grinding enables innovative production
Ultra-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).
Accuracy and Its Verification Workpiece
Accuracy of ±0.2μm to 1μm-vertical infeed command valuem
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.
The non-contact and polyhedral constraint hydrostatic guide for operating a 30-ton table with only one finger (oil friction coefficient: 10-17)
By combining the hydrostatic guide and ultra-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).
(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.
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.
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.
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.
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.
Development of an ultra-large rotary table of ⌀2700 (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.
By mounting an accuracy touch probe and electric micrometer, various kinds of on-the-machine measurement become possible.
Grinding of pentahedron workpieces is possible. Various kinds of other machining are also possible by mounting different tools.
By mounting a fullback cutter, end mill, etc., accurate preliminary machining is possible.
A variety of grinding wheels can be automatically changed depending on the finishing status and shape.
Use of the large-size rotary table (⌀2700) enables grinding of the top and inner surfaces.
The automatic pallet changer enables automatic machining during the night.
| Machine/Items | Size | Table Working Area (length x width) |
Vertical Axis Stroke | Max. Load | Vertical/Cross /Longitudinal Min. Unit |
Wheel Size (OD x W x ID) |
|---|---|---|---|---|---|---|
| mm | mm | ton | mm | mm | ||
| ORIGIN | 2015 | 2000 x 1500 | 650 | 3 | 0.0001 | ⌀510 x 100 x ⌀203.2 |
| 4025 | 4000 x 2500 | 1970 | 10 | 0.0001 | ⌀610 x 100 x ⌀304.8 | |
| 5025 | 5000 x 2500 | 1800 | 7 | 0.00001 | ⌀760 x 150 x ⌀304.8 | |
| 6026 | 6000 x 2600 | 1970 | 10 | 0.00001 | ⌀610 x 100 x ⌀304.8 | |
| 8020 | 8000 x 2000 | 1800 | 20 | 0.00001 | ⌀610 x 100 x ⌀304.8 | |
| 10025 | 10000 x 2500 | 1800 | 30 | 0.00001 | ⌀610 x 100 x ⌀304.8 | |
| 10030 | 10000 x 3000 | 1800 | 30 | 0.00001 | ⌀610 x 100 x ⌀304.8 | |
| 12025 | 12000 x 2500 | 1800 | 20 | 0.00001 | ⌀610 x 100 x ⌀304.8 |
Customers who are thinking of introducing new facilities are welcome to ask us for test machining or visit our factory. Please feel free to consult us. Please inform us of facility conditions, size and material of machining workpieces, machining time, etc. in detail. Depending on the contents of your request, sales personnel in your district will make a proposal to meet your requirements.