Need to pay attention to the assembly milling fixture

A milling machine is a machine tool that uses a milling cutter to mill a workpiece. The milling machine is mainly used to machine the plane, groove, notch, spline and forming surface of the part. Usually, the milling cutter rotates as the main movement, and the workpiece (and) milling The movement of the knife is a feed movement. It can process planes, grooves, as well as various surfaces, gears, etc.

According to the feed mode during milling, the milling machine fixture is usually divided into a linear feed type, a circumferential feed type, and a mold milling jig. Then, what problems should be paid attention to when assembling these jigs for milling machines?

First, in order to improve the stability of the milling machine fixture installed on the machine tool and the vibration resistance under dynamic conditions, the structure of various devices should be compact, the center of gravity of the fixture should be as low as possible, and the contact area between the clamp and the machine table must be large.

Second, the use of milling machine milling productivity (short cutting time), when designing fixtures to consider how to quickly install the workpiece to shorten the auxiliary time, generally in the fixture Bu. Elements for determining the position and direction are also provided so as to quickly adjust the relative positions of the jig and the machine tool.

Third, when assembling the milling machine fixture, it is also necessary to consider the flow of the chips and the convenience of cleaning. Milling chips generated during milling, there should be enough space for chip evacuation, large jigs should consider chip outlets, flutes; for parts and spaces that do not easily remove swarf should be added protective cover. When cutting fluids are used during machining, the specific design of the clamps must take into account the flow and recovery of the cutting fluid. For heavy-duty milling clamps, rings should be provided on the clamp for ease of handling.

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