- Masterpiece in the world 2020/03/11 UP
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Masterpiece in the world #30
High-accuracy measurement using probe with original structure
“Worldwide wireless touch probe system WRS”
- Tag
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- On-machine measuring system
- Peripherals
- Setup time reduction
It is important for operators to measure workpieces, tool length and tool diameters, and check tool damage and wear to ensure highly accurate and safe machining. However, manual measurement can take time and cause variation in accuracy according to the operator’s skill level.With automatic measurement, measuring time can be short compared to manual measurement, and accuracy variation is less likely to occur. On the other hand, when complex-shaped workpieces are measured, automatic measurement can take time, too. Besides, accuracy can be lower when a long stylus is used.Some shop owners may have problems such as radio frequency interference and time-consuming paring work. This time we will introduce the Marposs’s worldwide wireless touch probe system WRS.
Marposs’s original and special probe and the modular structure enable flexible measurement of complex-shaped workpieces
The WRS uses the Marposs’s original touch probe, which is a modular type. The touch probe and communication part can be divided. Thanks to the special internal structure, the touch probe T25 achieves a high repeatability of 0.5 μm, and a feedrate of 300 to 600 mm/min.
Because it is a modular type, it can ensure highly accurate, flexible measurement. For example, with the integrated type of a touch probe and a communication part, a stylus itself has to be extended when side surfaces at the deep area of a workpiece are measured. The prolonged distance between the touch probe and stylus can inevitably results in low accuracy.The modular-type WRS, on the other hand, can achieve highly accurate measurement. There is no need to extend the stylus because an extension bar can be attached between a touch probe and a transmitter.
The 3-point support type is available, too. As it is a modular type, it can be replaced according to the usage.
Up to 316 probes can be used without concern for radio frequency interference
The WRS is a wireless probe system suitable for large machines and 5-axis machining centers with a communication frequency range of 2.4 GHz and a communication area of up to 15 meters. The system features 79 channels, each with 4 sub-channels; and up to 316 probes can be used in the same factory (within the communication area) depending on machine arrangement.The product mounts the auto channel selection function, which detects noise and automatically transmits radio waves to noiseless areas. So even in a factory where various radio waves are transmitted, there is no need to worry about radio frequency interference. As the WRS has obtained the certifications of different countries regarding wireless network, it can be used almost anywhere in the world.
The WRS uses a general, commercially available lithium battery. With a new battery, the WRP45 continuously operates for 900 hours, and the WRP60 for 1,500 hours, and the tool measuring touch probe WRTS for 900 hours. (*) It is one of the advantages of the WRS series that a reasonable and easy-to-get lithium battery can be used while many other touch probes need a special and expensive battery.
(*) Values obtained under the test condition of Marposs Corporation. They may change according to the measuring program and the programming mode.
User-friendly receiver with a built-in interface ensuring easy pairing
The WRS’s receiver features a built-in interface type, and it is easy to do programming and adjustment. For pairing, numbers are indicated on the receiver’s display, so adjustment can be done as easily as tuning in to the radio. The completion of paring can be checked by the message shown on the screen, which makes the product stand out as being user-friendly.
The remaining battery level is also shown on the display for quick checking. When the level gets low, the low battery alarm goes off to avoid an event such as a system stop that can happen during automatic measurement at night because a remaining battery level was unnoticed in advance.
The installation can be done with the magnet on the back side as well as screws. The receiver can be attached outside of a machine as long as it is within a coverage area. When it is installed inside the machine, wiring construction and installation of an air blow kit are required, but for external installation, they are not. Even when the receiver is updated, no construction is necessary.
We also offer the WRP45P and the WRP60P, touch probe systems with higher accuracy using piezoelectric element (voltage is generated when pressure is applied, and volume changes when voltage is applied). They achieve a repeatability of 0.25 µm and an ultra high level of measuring accuracy when measuring 3D curves. The WRP45P is suitable for compact and medium size 5-axis control machining centers and milling machines while the WRP60P is for large 5-axis control machining centers and milling machines.
The WRS is used in many factories, mainly those of the automotive manufacturers. Some customer successfully shortened a measuring time by 30 second. After experiencing the excellence of the WRS, he says that it was a drastic reduction of cycle time on an annual basis, which eventually resulted in a significant cost reduction.
| Marposs Corporation Address: 5-34-1, Minami magome, Ota-ku, Tokyo 143-0025 TEL：+81-3-3772-7011 FAX：+81-3-3772-7093 URL：https://www.marposs.com/eng/ |
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