Spring clamping cylinder for fixture and workpiece clamping

Jakob Antriebstechnik represents its hydromechanical Spring tension cylinder the ZSF series. The robust clamping elements are used wherever sliding or moving machine parts need to be clamped or locked at times. Further applications can be found in fixture construction and for workpiece or Toolsclamping. The spring tensioning systems work in mechanical-hydraulic interaction.

The clamping force is applied mechanically by a preloaded plate spring assembly. The Hydraulic System is only used for the release stroke of the elements, whereby the tie rod or pressure pin is released. Because the clamping force is always retained in full regardless of the oil pressure or leakage losses, a high level of operational safety is guaranteed.

Functioning of the spring tensioning cylinder

Be in the way of working Push or pull piston alternately acted upon by the disk spring package or the hydraulic pressure. The spring package is compressed as the oil pressure increases, and the spring force increases. At the set pressure, the corresponding nominal clamping force is achieved as the reaction force of the disc spring assembly.

Individual control panels as special solutions from a single source

To release the push or pull piston is a higher one Hydraulic pressure required, which is proportional to the release stroke up to a maximum value. This means that the set pressure is only required for exact force adjustment during initial installation. In the actual operating cycle, the cylinders are either operated without pressure or with release pressure.

With spring-loaded cylinders, a mandrel or tie rod is screwed into the threaded bore of the tension piston and secured. A hydraulic unit is required for operation, which should be equipped with a pressure relief valve, pressure gauge, switching solenoid valve and pressure switching device.