フライス盤とフライス技術

Milling is a machining method in which a milling cutter is used as a tool and the surface of an object is processed by CNC. Milling machines include horizontal milling machines, vertical milling machines, portal milling machines, profiling milling machines, universal milling machines, and bar milling machines.

What is milling?
フライス加工とは、回転するマルチエッジ工具を使用してワークピースを切断することを指します。, 非常に効率的な処理方法です. 作業中, ツールが回転します (主な動きをします), そしてワークは動きます (フィードの動き). ワークの固定も可能, ただし、回転ツールも移動する必要があります (主動作と送り動作を同時に完了する). フライス加工に使用される工作機械は横型フライス盤または立型フライス盤です。, 大型ポータルフライス盤も. これらの工作機械は、通常の工作機械または CNC 工作機械です。. 回転フライスを切削工具として使用します. フライス加工は一般的にフライス盤または中ぐり盤で行われます。. 加工面に最適, 溝, 各種成形面 (花の鍵, 歯車と糸) 金型等の特殊な形状の表面.

Features of milling tools
① Each tooth of the milling tool periodically participates in intermittent cutting.
② The cutting thickness of each milling cutter tooth changes during the cutting process.
③ The feed per tooth αf (mm/tooth) indicates the relative displacement of the workpiece within the time that the milling cutter rotates one tooth.

Common milled parts
(1) Flat parts
The characteristics of plane parts: the machined surface can be parallel to the horizontal plane, perpendicular to the horizontal plane, or a fixed angle with the horizontal plane;
Most of the parts processed on the CNC milling machine are flat parts, and the flat parts are the simplest type of parts in CNC milling. 一般的に, only two-axis linkage or 3-axis linkage of a three-axis CNC milling machine can be used for processing. In the processing process, the processing surface and the tool are in surface contact, and end milling cutter or ball end milling cutter can be used for rough and finishing processing.

(2) Special-shaped parts with curved surfaces
The characteristic of curved parts is that the machined surface is arc-shaped space curved surface. During the machining process, the machining surface and the milling cutter are always in point contact. Surface finishing is mostly carried out with ball-end milling tools.

Precision correction of milling machine
X-axis correction of milling machine
Slightly loosen the 4 bolts, but make sure that there is still some friction resistance on the 4 bolts. 現時点では, use the rotating bolt of the head to adjust the left and right angle. During the process, a dial indicator must be placed on the end of the spindle to measure the correct position of the worktable.

Y-axis correction of milling machine
Slightly loosen the 3 bolts, but make sure that the 3 bolts are not too loose to facilitate fine-tuning. 現時点では, by the arm rotating bolt, a dial indicator placed on the spindle end in order to measure the correct position of the table.

Horizontal correction of milling machine
Place the spirit level on the work surface.
Check point A and B of the level, the allowable value is 0.06mm/m.
必要であれば, shims can be placed under the machine.