What is a turret milling machine?

Turret milling machine is a light duty general metal cutting machine tool, which uses the table to drive the workpiece to move, and the high-speed spindle to drive the tools to rotate for cutting. The shape of the milling machine is similar to that of the turret. Turret milling machine can also be called rocker milling machine, arm milling machine, universal milling machine. Turret milling machine has compact structure, small volume and small floor area. High flexibility. The milling head can rotate 90 degrees left and right and 45 degrees back and forth. The rocker arm can not only expand and retract back and forth, but also rotate 360 degrees in the horizontal plane, which greatly improves the effective working range of the machine tool. The turret milling machine can be equipped with DRO, X-axis automatic power feed, Y-axis automatic power feed, z-axis auto lifting motor, No. 5 strong milling head, as well as optional accessories such as rotating table, universal dividing head and slotting head，etc.

Turret milling machine generally has two functions of vertical and horizontal milling (optional), which can mill the flat surface, slope, groove and spline of medium and small metal parts. It is mainly used in machining, mould, instrument, instrument and other industries. We mainly introduce the vertical turret milling machine.

Vertical turret milling machine, also known as rocker milling machine, universal milling machine, is a small and medium-sized general metal cutting equipment, which is composed of bed, workbench and sliding seat, milling head, cooling and lubrication, electrical system and other important components. Vertical turret milling machine is a kind of turret milling machine, which belongs to the category of milling machines. The difference between vertical turret milling machine and turret milling machine is that its spindle can only feed vertically, and the travel direction of spindle forms an included angle of 90 ° with the plane of worktable. Vertical turret milling machine can be widely used to process plane, inclined plane at any angle, milling keyway and groove, as well as turning, reaming and boring. It is applicable to the processing of various small and medium-sized parts, especially in the field of machinery industry.

The milling head of the vertical turret milling machine can rotate 90 degrees left and right, 45 degrees front and rear, and the ram can rotate 360 degrees horizontally. The spindle has a large speed change range and high speed. The bed is integrally cast, with strong rigidity and long service life. The spindle sleeve can be motorized for fixed distance feeding, and is equipped with overload protection device. Spindle sleeve, machine tool guide rail and worktable are all hardened by high frequency, beautiful and practical. There are three types of worktable longitudinal and transverse: manual feed, motorized feed and motorized fast feed. Motorized feed can obtain 8 different feed speeds, which can meet different processing requirements; Rapid feed can make the workpiece quickly reach the machining position and shorten the non machining time. The z-direction lifting of the lifting table can be realized by manual and motorized methods, and manual and motorized are interlocked, eliminating unsafe factors. 10. Y and Z direction guide rail pairs are processed by ultra audio frequency quenching, precision grinding and scraping, so as to improve the accuracy and prolong the service life of the machine tool. The manual lubrication device can forcibly lubricate the vertical, horizontal and vertical lead screws and guide rails, reduce the wear of the machine tool and ensure the efficient operation of the machine tool.

The standard milling head of turret milling machine is the same, basically 16 speed, motor double speed – select high and low speed through the change-over switch, adjust the pulley to 4 speeds, and adjust the belt position. Another is the gear speed change of the internal structure, which is also 2-speed. This speed change is a little troublesome – high-speed – low speed. First push the clutch turntable to the right and back (high-speed disengagement, at this time, the main shaft is separated from the power unit, and you can easily rotate the main shaft), and then switch the high-low-speed switching handle at the back of the right side to low-speed, low-speed – high-speed, and the steps are reversed. However, it should be noted that the main shaft needs to be rotated to check whether the high-speed gear is engaged in place before it can be started. By the way, in places with low temperature, it’s best to put it in the high-speed state when stopping the machine, otherwise it may be impossible to switch from low speed to high speed when starting the machine.

Universal rocker milling machine is often encountered in the market. What are the differences between universal rocker milling machine and turret milling machine?

1. The structure of universal rocker milling machine is different from that of turret milling machine:

The worktable of the universal rocker arm milling machine has a rotation mechanism, and the worktable can rotate ± 45 °, which can increase the processing range and processing mode; The turret milling machine workbench cannot rotate, and the end milling head can only move up and down the z-axis, so the processing method is single;

2. The transmission mode of universal rocker milling machine and turret milling machine is inconsistent:

The main shaft of universal rocker milling machine is driven by gear, with high output power. During gear adjustment, it is necessary to adjust the transmission plate and operating lever;

When adjusting the speed of turret milling, not only the gear should be adjusted, but also when the speed is adjusted after the gear is set, the belt pulley needs to be adjusted manually, which is more troublesome.

3. The structural strength of universal rocker arm milling machine and turret milling machine is inconsistent:

The universal rocker arm bed has a strong structure and large bearing weight; Some turntables are added on the basis of the overall casting structure, and the self weight is also large; The output of milling head adopts Mo type structure, generally 7:24, with large output force; The output of turret milling machine adopts taper shank output, which is generally divided into No. 3, 4 and 5 turret milling machines, with limited bearing capacity and light self weight.

4. The types of parts processed by universal rocker arm milling machine and turret milling machine are different;

Due to its high output power, the universal rocker milling machine can process stainless steel, cast iron, cast steel and other ferrous metals in addition to aluminum and copper parts; If the wind head and change gear are installed, the worm gear and worm can be processed. Turret milling can only process aluminum and copper parts with small cutting force, and the processing range and method are a little smaller than that of universal rocker milling machine.

Due to the low precision of general milling, many customers want to change turret milling machine into NC milling machine. The turret milling machine 5V produced by our factory can be changed into CNC milling machine 5HS. First, the transformation of the mechanical part. Change XYZ three-way drive motor into servo motor \ stepper motor, and change the connection mode between motor and screw rod to direct connection or synchronous belt drive screw rod to ball screw. On this basis, it is equipped with a simple CNC system (electric cabinet + system, which should match the CNC system. The commonly used CNC systems include GSK, KND, FANUC, Siemens, etc.), and some peripheral auxiliary functions (cooling system, lubrication system, etc.). In a word, the drive motor of the feed shaft is changed from an ordinary motor to a stepping or servo motor. The feed shaft screw system is replaced by ball screw to improve the transmission accuracy. If you are interested in this model, please feel free to contact us.