If you lose the clamping
force," he adds, "you get vibrations in the spindle.
The Unilock clamping
modules can either be integrated into the machine table or mounted as an assembly onto the table surface.
C-clamps, strap clamps, and T-slot clamps have adjusting screws to apply clamping
Negri Bossi rolled out its new 1500-ton Bi-Power two-platen hybrid model featuring electric injection, hydraulic clamping
, and two traversing cylinders on the moving platen.
mechanism is purely hydraulic, without the assistance of any extra devices, so that considerably higher hydraulic pressures are necessary.
Starting from the RSOX layout, the company has increased the clamping
force and the machine dimensions, especially the platen size.
Standard features: Closed-loop control of clamping
, injection, ejection; LCD screen, self-diagnostics; digital setting and readout of actual ejector position.
A further benefit of clamping
is a consistent yield of high-quality parts.
Choices in clamping
can be quickly narrowed by evaluating requirements for clamping
direction, and, depending on shop or plant environment, clamp material.
The pneumatically-powered clamps are adjustable over a range of clamping
forces from 20 lb to 160 lb.
Strickley points out that such a timesaving feature is not possible with clamping
on the four tiebars.
A rule of thumb in clamping
is to try to minimize exerting force, both to minimize wear and tear on the clamp and to minimize workpiece deflection, says Mr Ruffley.