Double spindle car the car milling and milling machining center two collection process to a machine, car, milling, drilling, cutting and other processing can be completed in a procedure, greatly reduce the processing cost, single piece manufacturing cost can be reduced by 30%.

In batch production, the use of multi-axis machining process is undoubtedly a can substantially increase productivity and effective way to reduce the production cost. This method applies to turning processing, can also be applied to the milling processing. If you can put two kinds car milling process of collection on a machine tool, a process with only can put the workpiece is processed, its advantages will be more obvious. In this case, due to the change process workpiece can save, so the machining accuracy was improved; At the same time, because can save the time needed for the replacement of equipment, thus can greatly shorten the processing time.

Figure 1 MC 526 / MT double spindle machining center has two driving shaft, the two-axis turning processing

The professional company of vertical machining center Stama company has successfully provided double spindle machining center and MT car milling center. This belongs to Schlierbach processing center for manufacturing the youngest in the family members of the company to market provides a MC 526 / MT double spindle machining center, by double spindle to cars, milling, and the thread cutting processing, etc.

And machining composite preform

The design of vertical twin screw milling machining center can at the same time on the five comprehensive processing of preform artifacts. The processing center on three linear axis in workpieces at the same time, the machining center is equipped with a rotary table can rotate 90 °, rotary table with 266 mm spacing is equipped with two transmission shaft, respectively. Shaft maximum speed can reach 5000 r/min, the torque of 80 nm, the clamping force is 800 nm. The workpieces by maximum diameter is 150 mm. Spindle on one side of the workpiece rotate during the turning processing, and in milling and drilling, is responsible for locating with swirl shaft. Two milling shaft with HSK - A63 bearing, spindle with AC motor directly connected by flange, as a result, the maximum torque can be up to 140 nm, rotational speed can reach 10500, 12000 or 15000 r/min. When the speed reached more than 20000 r/min, the spindle can also be used as the drive shaft.

On the positioning of the rotary table drive and machining center and the promoting action, by screw/ratchet device and ball screw transmission device to send out. When the X, Y, Z travel up to 400 mm and 400 mm and 360 mm respectively, all three linear shaft gear can reach the speed of 60 m/min. Because according to the principle of force, the milling on one side of the tool axis is also responsible for cutting tool replacement, it must be upward toward the direction of the tool storage location, so the Z axis to accelerate or decelerate at a rate of about 1.2 g. Acceleration of 0.5 g of X, Y axis acceleration of 0.8 g. Various shaft with results from a cutting process of cutting process to another for a short time of 2.4 s.

According to manufacturer, machining center investment costs increased only around 30%, but as a result of biaxial and five surface processing, so the production efficiency nearly doubled, single processing cost reduces about 30%. Such as cars, milling, drilling, cutting step can be completed in a procedure, so the workpiece machining accuracy improved and processing time has been shortened.

Flexible fixture change time

Modern processing center, of course, only in the use of corresponding efficient under the condition of the clamping device, can with its high cutting speed and feed, make the high acceleration and high spindle speed really achieve higher production efficiency. Fixture can largely affect the tool change time and feeding time. And in this time machine has been in a stop state. Happen because of the limit of the fixture of the time, sometimes there are a lot of potential to explore.

The workpiece clamping to the machine tool, depending on the type of machine tool and workpiece specification is different, this is a relatively laborious work. In view of the prototype, small batch and single whole processing, fixture should try to adopt the reasonable structure of standard components, make the parts can be any combination. Through this kind of flexible fixture system, which can be of various shapes and different specifications of the workpiece is fixed. Use is applicable to small batch processing, and suitable for mass production of the traditional fixture system, can improve the work efficiency of the cutting tool. Fixture manufacturers according to the market to provide the powerful, good safety clamp series, from simple flexible clamp device, all the way to the multifunctional fixture system.