Posts Tagged ‘cnc’

Multi-axis Machine for Mass Production

May 23, 2008

It’s called “The Pinnacle of Mass-Production”. Up to 3 turrets can be installed, all of them Built-in Motor Turret (BMT™). By placing the motor inside the turret, heat generation and vibration are reduced to a minimum and transmission efficiency is improved. Cutting performance, speed and precision are also increased. The previous model worked with a transmission structure with many heat-generating parts such as gears and belts, which affect machining accuracy, but the new nz series tourret works with a built-in motor, there is no transmission structure. The sources of heat are reduced, and the motor is also surrounded by a cooling jacket. Built in motor tourret

The new NZ Series of cnc multi-axis machines offers not only turning, but also excellent milling with the Y-axis. With the longest Y-axis stroke in its class, it achieves high-precision, high-efficiency machining.

Mori Seiki’s original technology, the Octagonal Ram Construction (ORC™), is a fundamental improvement on the weaknesses of conventional moving structures. With the symmetry of an octagonal shape, thermal displacement is controlled and stable straightness is ensured even at high speeds. It offers stable, high-precision machining. Thermal Displacement

The cnc’s engeniers had achieved both high flexural rigidity and a light body by making repeated use of the most advanced analytical techniques. They’ve used Finite Element Method (FEM) analysis to simulate the structure’s deformation under load. By making fine adjustments to every detail, from the thickness of the bed to the shape and arrangement of the ribs, they achieved high fl exural rigidity. At the same time, we managed to make the body light.
From Moriseiki’s official website.
http://www.moriseiki.co.jp

For Aerospace Production, Integrex e-Ramtec V8

March 2, 2008

The INTEGREX e-RAMTEC V/8 is doted with a ram spindle, whose cutting heads are automatically changed by the ATC to do deep I.D. turning and I.D. angle head drilling.
This CNC machinig center was disigned for aircraft, ships, construction machinery and other large items to vertical lathe-based development of complex machining, in addition to the usual set up a dedicated spindle machining diameter of the shaft so that the diameter can not change tooling for processing.
The axis distance reach 900 MM and has a 40 collection tools, performing a long time task, along with the cars and milling function.

There is no need to change the tooling, which minimize the processing time for instance before you’d needed 1oo hours of processing now you only need 12 hours to complete a mechanical task and the precision has increades as well.
This smart machine can detect thermal deformation and prevent mechanical interference, can inspect the center of gravity position.

CNC machinery and tools

April 20, 2007

A CNC machine tool is a powered mechanical device used to fabricate metal components of machines by the selective removal of metal. The term machine tool is usually reserved for tools that used a power source other than human movement, but they can be powered by people if appropriately set up. Many historians of technology consider that the true machine tools were born when direct human involvement was removed from the shaping or stamping process of the different kinds of tools. For instance, they consider that lathe machine tools were invented around 1751 by Jacques de Vaucanson because he was the first to mount the cutting instrument on a mechanically adjustable head, taking it out of the hands of the operator.
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Blogs Directory

CNC Routers

April 20, 2007

CNC Router

A router is a woodworking tool used to rout out (hollow out) an area in the face of a piece of wood. It was a tool particularly used by pattern makers and staircase makers and consisted of a broad-based wooden hand plane with a narrow blade projecting well beyond its base plate gaining it the nickname Old Woman’s Tooth. Since about 1960, it has been replaced by the modern spindle router, which was designed for the same work, although the first electric hand routers appeared in the years just after World War I. Further refinement produced the plunge router, invented by Elu (now part of deWalt) in Germany in the late 1940s. This is even better adapted for many types of work. Today, traditional hand-powered routers are often called router planes. Modern routers are often used in place of traditional moulding planes or spindle moulder machines for edge decoration (moulding) of timber. Related to the router, is a smaller lighter version designed specifically for trimming laminates. It can be used for smaller general routing work. For example with an appropriate jig it can be used recessing door hinges and recessing lock faceplates etc. A wood CNC Router is similar to a metal CNC mill with the following differences:The wood router typically spins faster — up to 24,000 RPM It typically uses smaller tools — typical shank size 20 mm or at most 25 mm. It typically uses smaller toolholders MK2 (Morse taper #2 – on older machines),ISO-30, HSK-63 or the tools just get held in a collet tool holder affixed directly to the spindle nose. ISO-30 and HSK-63 are rapid-change toolholding systems. HSK-63 has begun to supplant the ISO-30 as the rapid change standard in recent years Some wood routers have multiple separate heads that can come down simultaneously or not. This design is generally not as easy as a toolchanger with ISO-30 or HSK-63, though it is easier to maintain. A wood router table is controlled in the same way as a metal mill, but there is a lot of CAM software specifically for wood routers. Wood with different grain must be approached with unique strategies, and wood CAM software is less likely to need to have hog-out strategies than the metal ones. Wood routers are frequently used to machine other soft materials such as plastics at high speed.

CNC Milling Machine

April 20, 2007

CNC Milling
A milling machine is a machine tool used for the complex shaping of metal and other solid materials. Its basic form is that of a rotating cutter or endmill which rotates about the spindle axis (similar to a drill), and a movable table to which the workpiece is affixed. That is to say the cutting tool generally remains stationary (except for its rotation) while the workpiece moves to accomplish the cutting action. Milling machines may be operated manually or under computer numerical control (see CNC). Milling machines can perform a vast number of complex operations, such as slot cutting, planing, drilling, rebating, routing, etc. Cutting fluid is often pumped to the cutting site to cool and lubricate the cut, and to sluice away the resulting swarf.
There are two main types of mill: the vertical mill and the horizontal mill. In the vertical mill the spindle axis is vertically oriented. Milling cutters are held in the spindle and rotate on its axis. The spindle can generally be extended (or the table can be raised/lowered, giving the same effect), allowing plunge cuts and drilling. There are two subcategories of vertical mills: the bedmill and the turret mill. In a turret mill the spindle remains stationary during cutting operations and the table is moved both perpendicular to and parallel to the spindle axis to accomplish cutting. In the bedmill, however, the table moves only perpendicular to the spindle’s axis, while the spindle itself moves parallel to its own axis. Also of note is a lighter machine, called a mill-drill. It is quite popular with hobbyists, due to its small size and lower price. These are frequently of lower quality than other types of machines, however.
Most CNC milling machines or machining centers are computer controlled vertical mills with the ability to move the spindle vertically along the Z-axis. This extra degree of freedom permits their use in engraving applications, and also allows to create 2.5D surfaces such as relief sculptures. When combined with the use of conical tools or a ball nose cutter, it also significantly improves milling precision without impacting speed, providing a cost-efficient alternative to most flat-surface hand-engraving work.