A Swiss lathe is also called Swiss-type Lathe, which is a variety of turning machines so sometimes it is referred to as Swiss Machine. This type of turning machine feeds the stock through a guide bushing unit. This indicates that, the outer diameter turning tool can cut the stock near the bushing. Based on this advantage near the point of support, no matter how long the work piece it is the work can be achieved. The machine feeds the work out of the spindle and past the tool as it works. This mechanism makes the CNC Swiss lathe particularly effective for long and slender turned parts.
The development of lathe machines can be traced back to ancient times while precision turning works only happened during the industrial revolution in the nineteenth century, around the 1800s in which many industrial objects need to be produced in massive quantity. Those work pieces needed to be precisely machined in a large amount of quantity but then the development of lathes were not in the CNC era yet. People studied the guide bushing method for the feeding mechanism, and eventually the accurate parts within a specific tolerance were produced by the newly developed lathe models and the work pieces produced can be replaced by one another without further technical issues due to the controlled tolerance values.
During the operation, the chuck of Swiss lathe holds the work piece with both a collet and a guide bushing unit. The collet locates behind the guide bushing, and the cutting tools sit in front of the guide bushing. Guide bushing is often designed as holding the stationary on the Z axis. The design is similar to conventional lathe machines as the work pieces are clamped firmly on the chuck unit(s) for turning process. Today, most CNC based Swiss machines use one or two spindles plus one or two back spindles. The main spindle(s) are utilized with the guide bushing for the main machining operation tasks, while the secondary spindle is located behind the parts, and is aligned often on the Z axis. During a simple operation, it will pick up the part when it is cut off, and then it will accept it for second operation rounds. After that, it will mechanically eject it into a container, so that there is no need for manual operation process.
However, what are different from conventional lathes are the uses of the guide bushing together with the collet. Most Swiss lathe machines are developed for the processing of small work piece processing with small diameters within especially a short period of time. The diameter value and the tolerance can be of micrometers, and often the ordinary Swiss lathe holds the tolerance as a few tenths of a thousandth of an inch. For this level of tolerance to be achieved within a relatively short period of time, it is the Swiss lathes win out compared with ordinary lathe machines.
Applications of the Swiss machines are many. People who need small work pieces within the tolerance of micrometers would use Swiss lathes for their operations since it is the best use of it. Those industrial insiders are normally from the medical sectors as well as the electronic industry. These two sectors are well known for their requests for small work pieces as parts and their zero tolerance policy towards the components and parts of their products. As for this type of work piece demands, Swiss lathes are the most optimum choice for those users to achieve the goals.
The programming functionality of the Swiss lathes is one of the most important issues since the Z-axis motion of CNC Swiss machine comes from the stock moving instead of the cutting tools. This essential change influences the nature of the programming offsets. Buyers need to know more about each Swiss lathe’s programming functionality and the installed software in order to better handle their purchased Swiss machines in a good way. It is anticipated that, with the familiar controlling system the users can makes the best use of this type of machines to achieve work pieces within very small tolerances.
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