The design features of milling fixture

The design features of milling fixture  

As a result of milling and cutting force cutting more and more intermittent cutting edge, easy processing of vibration, so they should pay attention to the design of milling machine fixture: clamping force to be sufficient self-locking and anti-stroke; fixture installation to be accurate and reliable , that is, when the processing installation and the proper use of directional keys on the knife device; precision turned parts specific folder have sufficient stiffness and stability, the structure must be reasonable. 

 precision turned parts As a result of milling and cutting force cutting more and more intermittent cutting edge, easy processing of vibration, so they should pay attention to the design of milling machine fixture: clamping force to be sufficient self-locking and anti-stroke;fixture installation to be accurate and reliable , that is, when the processing installation and the proper use of directional keys on the knife device; specific folder have sufficient stiffness and stability, the structure must be reasonable. 

1. Directional keys

 Directional key position, also known as keys, installed on the bottom of the vertical slot fixture, generally with two, an in a straight line, the farther the distance, the higher the precision-oriented, with screw fastening in the specific folder.   Directional keys work with the milling machine with table-shaped slot in the machine tool fixture to determine the correct position; can absorb part of the cutting torque, reducing the load on clamping bolt to increase the stability of the fixture, so flat and some special drilling jig boring machine fixture is also frequently used.  Directional keys are rectangular and round two.

 2. Of the knife device

   precision turned parts precision turned partsDevices on the knife block and knife by the side of the foot of the fixture and tool used to determine the relative position. The structure of the form of a knife depends on the shape of the surface processing.

  Directional high-precision fixture should not be used or heavy directional keys, but in the specific folder on one elongated side processing as a base to look for is the installation location calibration fixture.Knife block on the pin and screw fastener commonly used in the specific folder, its location should be easy-to-use plug-foot on the knife, without prejudice to the workpiece loading and unloading. On the knife when the knife cutter block with a plug in between the feet with the knife tool to avoid direct contact block or cause damage to the knife blade block premature wear. Cypriot Cypriot feet are flat feet and two-foot cylindrical plug, the thickness and diameter of 3 ~ 5mm, manufacturing tolerance h6.

  Side of the knife block and feet have been standardized (the design can be found in the relevant manual), use the total fixture Sedat map scale should be marked on the knife block size and the work surface and positioning the location between the components. Devices should be installed on the blade of the knife and is easy to cut one end of the workpiece.