Workholding
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At BNR, we have
experience with many
types of workholding devices. We have built fixtures for milling,
turning, grinding and CMM inspection applications. Depending on your needs, we can design
and/or build anything from a very simple manually clamping fixture to a
complex multi-station hydraulic clamping tombstone fixture. We believe the machining process and the fixture
must work together to ensure the best possible quality of parts. We can
design a fixture around your machining process or if you prefer, we can
recommend an efficient approach for machining the part, then after the
manufacturing process is finalized, the fixture can be designed
and built to efficiently produce your part to print.
Here is a sampling of fixtures we have designed and
built over the years. |
This hydraulic clamping fixture is for a
thin wall titanium part that required several work supports to
control vibration. This fixtures used a manual pallet
valve for hydraulic operation.
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This photo is of a manual clamping, 2
operation tombstone that uses multiple removable gang plates that can be
loaded off-line to remove the part loading time from the
machining cycle time.
After a machining cycle is completed, the op.2 nests can be
removed as a gang, the op.1 nests are moved to station 2 and a
newly loaded gang is clamped in the op.1 station. |
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This is a 6 station
hydraulic clamping fixture for a horizontal machining center.
It has a manual operated pallet valve to connect to the
hydraulic power source and uses manifold mounted components. |
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Here is another hydraulic clamping
fixture. This one is for turning a thin shelled part on a
vertical lathe. This fixture uses a screw pump as the hydraulic
source |
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This picture is an
example of a CMM fixture. The aluminum die cast part is located and held in
place with toggle clamps and leaves access to all cast features
that need to be probed for inspection. |
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