The actual application of Index's G200 turning center in BMW's production plant shows that: In the integrated intelligent machining unit, the processing of two pairs of main axes can greatly reduce the processing time of the workpiece. The turning center is a parallel structure that allows the turning center to make regular turning and harder cars more rationalized.

Effectively save processing time

Index's G200 turning center integrated processing unit features modular, high-power twin-spindle, four-axis linkage, which further reduces processing time. Contrary to other concepts of clamping by means of a working axis, the product uses an integrated intelligent machining unit to automatically clamp the workpiece into place and process it. In other words, when it is mounted automatically, it does not affect the machining of another spindle. This feature can shorten the processing time by about 10%.

In addition, four-axis machining is very fast and two tools can be processed at the same time. When the machine tools are put into use in pairs, the improvement in efficiency is even more pronounced. In other words, conventional turning and hard trucks can set up two machine tools in parallel.

The difference between conventional turning and hard turning is only in the tool holder and the concentrated thermostatic coolant system. However, unlike conventional machining, conventional machining can be carried out with two toolholders and one tailstock; for hardcars, only one toolholder can be used. Dry hard machining can be performed on both types of machine tools, but the manufacturer of the process plan needs to carefully design a balanced cycle time, while the module structure provided by Index machine tool makes it more flexible.

Increase productivity with high precision

With the continuous improvement of production efficiency, users have also put forward high requirements for accuracy. When machining with the G200 turning center, up to 4 workpieces can be machined after a cold start and tolerances of ±6 mm can be achieved. During processing, the accuracy is usually kept at 2mm. Therefore, Index provides customers with a high-precision, high-efficiency complete solution, and to provide such high-precision solutions, it is necessary to carefully select the functional components such as the spindle and bearings.

The G200 turning center has achieved good results in the application of BMW's Landshut automobile manufacturing plant in Germany. The plant not only produces engines, but also parts made of light metal casts, interior plastic trims and steering shafts. The quality supervisor believes that the machining accuracy is very precise: the continuous tolerance zone is ±15mm and the bearing seat tolerance is ±6.5mm.
In addition, the universal joint used for processing uses Index's fully automatic intelligent processing unit. The first two turning centers are used to perform pre-machining before marking the workpieces, perform on-line measurements after processing, and then perform the hobbing, cleaning, and quenching processes through the conveyor belt. In the last process, a second Index processing system was used. Two G200 Turning Centers are used to hard-drive the knuckle bearing housings. The on-line measurement is completed in the machine and then sent to the discharge unit. The integrated processing unit is fully integrated into the layout of the workshop, meets ergonomic requirements, the floor space is greatly reduced, and only two employees are required to look after the manufacturing unit.

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