First, the difference between a vertical milling machine and a horizontal milling machine
Compared with a horizontal milling machine, the main difference between a vertical milling machine and a horizontal milling machine is the vertical arrangement of the spindle, except that the spindle arrangement is different , The worktable can be lifted up and down, and the milling cutter for vertical milling machines is relatively flexible and has a wide range of applications. End mills, machine-clamped cutter heads, drills, etc. can be used. It can be used for keyway milling, plane milling, boring, etc. Horizontal milling machines can also use the above various tools, but it is not as convenient as vertical milling, mainly because the hanger can be used to enhance the strength of the tools (mainly three-sided milling cutters, sheet milling cutters, etc.). It can be used for slot milling, plane milling, cutting, etc. Horizontal milling machines generally have an end milling head. Although this end milling head is not as powerful and rigid as a vertical milling machine, it is sufficient for end milling. This makes the overall functionality of horizontal milling machines more powerful than vertical milling machines. Vertical milling machines do not have this feature and cannot process workpieces suitable for horizontal milling. Productivity is higher than that of horizontal milling machines.
Vertical milling machine use: suitable for processing planes, inclined planes, grooves, holes, etc. of various parts and components, and is an ideal processing equipment for machinery manufacturing, molds, instruments, meters, automobiles, motorcycles and other industries
Save on equipment investment. However, due to the many odd jobs of vertical milling, this horizontal milling machine + vertical milling head method is actually hanging the vertical milling head every day. When it is used for vertical milling, it is not as suitable as a vertical milling machine. Horizontal milling is mostly used for gears, splines, grooving, cutting and other processing. In addition to vertical milling machines, which are mostly used for plane processing, the plane has high and low curved and straight geometric workpieces, such as molds, and vertical milling can play a role.
Second, the structural characteristics of vertical milling machine
The milling head of vertical milling machine can be adjusted ±45° clockwise and counterclockwise in the vertical plane; vertical milling machine Motorized feed in X, Y, Z directions; vertical milling machine spindle adopts energy consumption braking, with large braking torque, rapid and reliable stop.
The main components such as base, body, worktable, middle slide, lift slide, headstock are all cast with high-strength materials, and processed by artificial aging to ensure the long-term stability of the machine tool .
The end milling head can be adjusted by ±45° in the vertical plane and reverse rotation to expand the processing range of the machine tool; the main shaft bearing is a tapered roller bearing with strong bearing capacity, and the main shaft adopts energy consumption braking, Large braking torque, quick and reliable stop.
The X/Y/Z direction of the worktable has three types: manual feed, motorized feed and motorized fast forward. The feed speed can meet different processing requirements; the rapid feed can make the workpiece quickly reach the processing position , The processing is convenient and fast, and the non-processing time is shortened.
The X, Y, Z three-direction guide rail pairs are processed by ultrasonic quenching, precision grinding and scraping, and combined with forced lubrication, the precision is improved and the service life of the machine tool is prolonged.
The lubricating device can forcibly lubricate the vertical, horizontal and vertical lead screws and guide rails to reduce the wear of the machine tool and ensure the efficient operation of the machine tool; at the same time, the cooling system changes the flow rate of the coolant by adjusting the nozzle. size to meet different processing needs.
The design of the machine tool is ergonomic and easy to operate; the operation panels are designed with visual symbols, which are simple and intuitive.
III. Explanation of milling machine category and milling machine model meaning
Milling machines are mainly divided into vertical milling machines, horizontal milling machines and gantry milling machines according to their shapes. The categories of these types of milling machines can be adapted to various processing needs.
Among them, a brief introduction is as follows: vertical milling machine means that the milling head spindle of the milling machine is perpendicular to the operating table; horizontal milling machine means that the milling head spindle of the milling machine is parallel to the operating table surface.
The model of milling machine usually contains numbers and letters, these numbers and letters have their special meanings,
Such as XQ6225, X means milling machine, Q means lightweight Milling machine, 6 means horizontal milling machine, 2 means universal lift table milling machine, 25 means 1/10 (250mm) of the width of the table. The precision level that can be achieved by milling is IT9-7, and the surface roughness Ra=6.3-1.6μm.
X–represents machine tool classification code
A–improved sequence number
5–milling machine type vertical milling machine
32 –Represents the width of the work surface is 320mm
The name of the milling machine model also has its special meaning
The milling machine model is a shorthand for the milling machine product Code name, this short code name includes milling machine category, specification model, milling machine technical parameters and structural characteristics, etc. my country’s current milling machine models are compiled according to the “Metal Cutting Machine Tool Model Compilation Method” of the Machine Tool Industry Association, which is composed of letters and numbers arranged according to certain rules.
Machine general feature code
General features: high precision, precision, automatic, semi-automatic, CNC, machining center copying, light, heavy, simple type.
Codename: GMZEKFQCJ
