What Is a Universal Milling Machine?

The universal milling machine is suitable for milling various planes, bevels, grooves, etc. using various rod milling cutters, circular milling cutters and angle milling cutters. If universal milling heads, circular tables, indexing heads and other milling machine accessories are used, the machining range of the machine can be expanded. The machine tool has sufficient rigidity and power, has strong processing capabilities, can perform high-speed and heavy-duty cutting work, and gear processing. Suitable for mold special steel processing, mining equipment, industrial equipment and other heavy and large machinery processing. The table of the universal milling machine can be rotated 45 ° to the left and right. When the table is rotated at a certain angle and the indexing head attachment is used, various spiral surfaces can be processed. The three-way feed screw of the universal milling machine is a trapezoidal screw or a ball screw.

Universal milling machine

Universal milling machine is a universal metal cutting machine.

The spindle taper hole of this machine tool can be directly or through attachments to install various cylindrical milling cutters, wafer milling cutters, forming milling cutters, face milling cutters and other tools. It is suitable for processing various planes, bevels, grooves, Holes, gears, etc. It is an ideal processing equipment for machinery manufacturing, molds, instruments, meters, automobiles, motorcycles and other industries.

Universal milling machine structure (5 photos)

Structure and characteristics of universal milling machine

The universal milling machine is composed of a body, a main drive, a feed box, a lifting table, a worktable, a cantilever beam, cooling, lubrication and electrical components. The body is composed of a base and a bed, and the bed is fixed on the base; the main drive is installed in the bed, and the speed of the main shaft is adjusted by three shifting handles on the right side cover of the bed; the feed box is hung on the right side of the slide The power is transmitted to the vertical and horizontal screws through the output shaft gear and the sliding gear. The lifting table is matched with a dovetail guide on the bed, which is vertically raised and lowered along the bed guide. The lifting table and the slide are matched by a rectangular guide. The seat is matched with a dovetail guide, and the table is moved longitudinally and laterally by a screw rod and a screw nut. The suspension beam is composed of a fixed seat, a ram and a hanger. A fixed seat is installed on the fuselage, which cooperates with the ram through the dovetail guide. Hanging at one end of the ram; the cooling liquid is stored in the inner cavity of the base; the main transmission department uses the lubricating oil pump for forced lubrication, the feed box uses oil-immersed splash lubrication, and the remaining moving parts are fixed-point lubricated by a manual oil pump or oil cup; The box is hidden in the bed, and the electrical control operations are adverbial to the left of the lifting platform, the right of the bed, or supported by a cantilever bracket in front of the left side of the foundation, which is easy to operate.

Universal milling machine operating procedures

1. Wear tight-fitting protective clothing with cuffs fastened before operation. Do not open the hem of the jacket. Gloves are strictly forbidden. Do not wear, change clothes, or wrap around the machine to prevent machine injuries. Safety helmets must be worn, braids should be placed in the hats, skirts and slippers must not be worn. Wear protective goggles: to prevent iron dust from flying and hurting your eyes, install a bezel around the machine to isolate it from the operating area.

Milling machine operation (3 photos)

2. Before clamping the workpiece, the clamping method should be worked out. When clamping the blanks, the table should be cushioned to avoid damaging the table. 3. Check that the fastening screws should be opened when the workbench is moving, and tighten the screws when the workbench is not moving. 4. When the cutter is loaded and unloaded, the cone part and the taper hole of the milling cutter should be kept clean and clamped firmly. Wear protective glasses when cutting at high speeds. Do not stack tools, parts, etc. on the workbench. Pay attention to the distance between the tool and the workpiece to prevent collision accidents. 5. Before installing the milling cutter, check whether the cutter is right and intact. The milling cutter should be installed as close to the spindle as possible. The mounting work should be secure. 6. When working, you should feed by hand first, and then gradually move the knife automatically. When running the automatic cutting tool, pull away the hand wheel, pay attention to whether the limit stop is firm, do not put it on your head, do not go to the extremes and damage the lead screw; when using fast travel, check in advance whether it will collide, etc. In order to avoid damage to the machine, the cutter breaks and fly out and hurt people. Always check whether the safety spring inside the crank handle is effective and reliable. 7. It is forbidden to touch the blade and the processing part by hand when cutting. Measurement and inspection of the workpiece must be stopped and not allowed to adjust the workpiece during cutting. 8. Before stopping the spindle, stop feeding. If the cutting depth is large, the cutter should be stopped first, the power must be cut off when the wheel is hanging, the clearance of the wheel must be appropriate, and the back bracket of the wheel must be fastened to prevent it from falling off. The speed should not be too fast when processing the blank. Knife and feed. 9. If the machine tool is found to be faulty, it should be stopped immediately for inspection and reported to the Ministry of Construction and Security for repair by a mechanic. Clean up and turn off the power after the work.