What Is a Milling Spindle?

Milling is a machining method that uses a milling cutter as a tool to process the surface of an object. Milling machines include horizontal milling machines, vertical milling machines, gantry milling machines, copy milling machines, universal milling machines, and bar milling machines.

Milling refers to cutting workpieces with rotating multi-blade tools and is an efficient machining method. During work, the tool rotates (for the main movement), the workpiece moves (for the feed movement), and the workpiece can be fixed, but the rotating tool must also move (to complete the main movement and feed movement at the same time). Milling machine tools include horizontal or vertical milling machines, as well as large gantry milling machines. These machine tools can be ordinary machine tools or CNC machine tools. With rotation

Each tooth of a milling cutter periodically participates in intermittent cutting.

The cutting thickness of each cutter tooth during cutting is changed.

Each tooth

(1) plane parts

The characteristics of flat parts are that the machining surface can be parallel to the horizontal plane, perpendicular to the horizontal plane, and can also form a fixed angle with the horizontal plane. Most parts processed on CNC milling machines are flat parts. The flat parts are The simplest type of parts in NC milling processing generally requires only two-axis or three-axis linkage of a three-dimensional CNC milling machine. During the machining process, the machining surface is in surface contact with the tool. Both rough and fine machining can use end mills or bull nose cutters.

(2) Surface parts

The characteristic of curved surface parts is that the processing surface is a spatial curved surface. During the processing, the processing surface and the

Classified by its structure

X-axis correction of milling machine

Slightly loosen the 4 bolts, but make sure that the 4 bolts still have some frictional resistance. At this time, use the head to rotate the bolts to adjust the left and right angles. During the process, a dial indicator must be placed on the end face of the spindle to measure the correct position of the table.

Y-axis correction of milling machine

Slightly loosen the three bolts, but make sure that the three bolts are not too loose to facilitate the fine-tuning work. At this time, use the arm to rotate the bolt to place a 100-meter dial on the end face of the main shaft to measure the correct position of the table.

Milling machine level correction

Place the spirit level on the work surface.

Check the level A and B of the spirit level. The allowable value is 0.06mm / m.

Spacers can be placed under the machine if required. ^[2]

1. When milling irregular workpieces and holding them with a vise, indexing head, and special fixture, the center of gravity of the irregular workpieces, vise, indexing head, and special fixtures should be placed in the middle of the work table as much as possible to avoid The table is unevenly stressed and deformed.

2. During fast or automatic feed milling, it is not allowed to go to the extremes of the table to avoid squeezing the screw.

3. It is forbidden to use motorized knife setting. The knife setting should be performed manually.

4. When the workbench is reversing, the reversing handle must be stopped at the middle position first, and then reversing, and direct reversing is not allowed.

5.Milling

Working scope of milling machine

1. Cleaning the bed and components, cleaning iron filings and the surrounding environment;

2. Check each oil level, it should not be lower than the oil level, and fill all parts with lubricating oil;

3. Cleaners, clamps and measuring tools.

Milling machine weekend maintenance range

1.Clean

(1) Remove debris from all parts;

(2) Wipe the worktable, the bed rail surface, each screw, each surface of the machine tool and dead corners, each operating handle and handwheel;

(3) Remove and clean the linoleum to remove impurities from the iron sheet.

2.Lubrication

(1) Fill lubricating oil for each nipple, guide rail surface, screw rod and other lubricating parts;

(2) Check the oil level of the spindle tooth box and feed tooth box, and add oil to the elevation position.

3.Tighten

(1) Check and tighten the screws of the worktable pressure plate, check and tighten the screws and caps of each operation handle;

(2) Check and tighten the other loose screws.

4.Adjustment

(1) Check that the clutch, screw rod order, insert, and pressure plate are tight;

(2) Check other adjustment parts.

5.Anticorrosion

(1) Remove the rust and protect the painted surface from collision;

(2) Disabled, spare equipment guide rail surface, sliding surface, various handwheel handles and other exposed parts that are prone to rust should be covered with oil.

Milling machine one guarantee operating range

1. Clean and adjust the workbench, screw handle and inlays on the column;

2. Check and adjust the clutch;

3. Clean the three-way guide rails and linoleum, and clean the internal and external parts of the motor, machine tool and accessories;

4. Inspect the oil circuit and fill each part with lubricating oil;

5. Tighten the screws.

Milling machine two guarantee operating range

1. Spindle box, table, gearbox cleaning, oil change;

2. Check and clean the oil pump and oil pipe, check and adjust the clearance between the worktable, inclined iron and screw nut;

3. Clean the clutch plate, clean the cooling box and replace the coolant, and clean the motor and electrical appliances. ^[1]