Breakthrough revolution in the grinding of indexable inserts
In the mass production of indexable inserts, the performance of the JUNKER Platemat machine is unparalleled. Flexibility, speed and durability form the basis for the high quality of Platemat machine solutions.
At first, Platemat was a machine type commissioned by the customer. It is the first indexable insert grinding machine owned by the JUNKER Group in Nordrach. The JUNKER Group has continuously improved and improved this technology. At present, the machine tool is mainly suitable for the peripheral grinding of blades with ISO standard geometry, and is mainly applied to the field of large-scale blade grinding.
The biggest advantage of this machine is that it can grind the periphery of the indexable insert and the negative chamfer in one setup. Thanks to the four interpolation linkage axes, high-precision operation of various grinding processes can be carried out, and the diversity of the arc and the relief angle can be achieved.
It is worth mentioning that in addition to the ISO standard geometry, the Platemat machine can also grind special geometries, and the surrounding grinding of JUNKER makes it possible to convert the convex and concave processes of the indexable insert. Johannes Burkart, a staff member at JUNKER Technical Marketing, said: "Our customers are very satisfied with the indexable inserts that Platemat machines have ground."
Rough grinding wheel and fine grinding wheel
Unlike other machine tool builders, the JUNKER experts did not choose a cup-type grinding wheel on the PLATEMAT machine, but instead used a coarse grinding wheel and a fine grinding wheel mounted on the B-axis. When the workpiece is ground, the rough grinding wheel is first used for high-speed grinding, and then finely machined by the grinding wheel to polish the surface of the workpiece. Compared with the cup-shaped grinding wheel, the peripheral grinding process can produce a finer cutting edge with a very small workpiece contact surface, thus better ensuring the high quality of the cutting edge.
In addition, in the production of indexable inserts with large grinding allowances, the “grinding-grinding†can be used with the “Grind-to-Size†machining solution. In this way, a blank can be used to grind workpieces of different geometries without the need to place different blanks on the support. When grinding a wide range of geometric workpieces, JUNKER's unique peripheral grinding technology reduces production time and increases productivity by nearly 60%: “So it can be said that the JUNKER Group offers the most productive indexable position. Large-scale grinding processing solutions for blades.†JUNKER Group is also working with customers to develop CBN and ceramic indexable insert grinding wheel technology.
JUNKER machines can be used in an integrated production solution. With the simple connection of peripherals and automation solutions, JUNKER machines can be used for all customers, which not only guarantees the high quality of the workpiece, but also is an economical choice.
JUWOP/SG software advantages
Having the JUWOP/SG integration package is one of the distinguishing features of Platemat. Through the parameter description, this software can coordinate the control system with the machine tool. Simply input a small number of parameters to define the blade grinding process and calculate the CNC grinding program for user-friendly operation. Non-standard profiles can be programmed in a variety of ways, such as by setting precise start and end point data, or by programming the system to position edges or faces and calculate the intersection position. The JUWOP/VG mode also allows for a 3D simulation of the machining process.
Platemat machine features
§ Rough grinding by using two grinding wheels for the shortest machining time
§Automatic dressing saves labor costs
§ Guaranteed rapid and automatic replacement of workpieces with a new clamping system
§Safe workpiece contour programming and definition of the blade grinding process with the help of the JUWOP/VG software package
§ 3D simulations including crash testing with visualization software JUWOP/VG for maximum machine availability
§ Workpieces with weights up to 150g can be automated
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