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„Efficient hairpin production“

BIMERIC: Future-oriented solution for hairpins

The production of hairpins for electric motors demands dynamic machine solutions that ensure optimized throughput and are nevertheless flexible enough to cope with changing variants. Only in this way will it be possible to manufacture the volumes required in the future at market-compatible prices. At the same time, it is is not only top quality that is essential; space-saving dimensions also contribute to resource-friendly production.

The efficient manufacture of electric motors makes use of so-called hairpins which are installed in the stators and replace the coil.

Thanks to its 30 years of experience, Bihler can offer new prospects for the industrialization of production processes as part of an automated end-to-end solution for the manufacture of hairpins. To do this, the BIMERIC production system brings together all the process steps in standardized form. These extend from the highly dynamic, slip-free infeed of the wire, through the NC-controlled, dimensionally accurate mechanical removal of the isolating lacquer, the simultaneous chamfering of the pin ends, the 2D preliminary bending and 3D die-bending and on through to the possible final measurement of the component geometry and inline adjustment. The end-to-end manufacturing solution on a single production system saves additional equipment and the space this would require. To produce hairpins, the BIMERIC can take up round or flat wire directly from the coil.

Three times the throughput of sequential systems

With an output of 60 to 120 finished parts per minute, it offers three times the throughput of sequential systems. Changes between variants can be performed “on the fly”, i.e. without slowing down the machine’s throughput, without shutting down the machine and without any intervention on the part of the operator. The BIMERIC is operated and controlled easily and securely using the VariControl VC 1 controller. The hairpin machine is based on the BIMERIC production system which brings together all the standardized process components in a modular arrangement on the basic machine body. Depending on the requirements that arise, the arrangement of the modules can be subsequently adapted or extended by further modules.

The process steps on the BIMERIC


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