CNC MILLING MACHINE FOR SALE

What is a four axis CNC machining center?

CNC machining center is a centralized CNC drilling, attacking, milling comprehensive function of the machine, can reduce the complex product processing tool change, clamping and other work procedures.  Greatly improve the production efficiency.  The CNC machining center is also one of the most widely sold metal cutting machine tools.

CNC machining center is mainly used for processing plane, groove, surface, CNC machine tool is the fastest developing products, is also the most widely used machine tool, machining center is suitable for machining, mold, shipbuilding industry, automobile and parts, aerospace and other fields.  Because the processing center involves military industry, aerospace and other fields related to national security, some developed countries take the development of high-end CNC machining centers as a priority, that the development of the CNC machining center is directly related to the country’s economic construction and national defense security.

The rapid development of downstream industry has driven the high development of CNC machining centers in China, and the research and development and improvement of small CNC machining centers is imperative.  Tsinfa CNC company can according to your processing needs, for you to recommend the most suitable CNC machining center, for your production to provide the best helper.  When the workpiece is not located in space, there are six degrees of freedom, namely, three linear displacement degrees of X\Y\Z and three corresponding rotational displacement degrees of A\B\C. The six degrees of freedom are usually represented by the cartesian coordinate system X\Y\Z for the three linear axes and the corresponding A\B\C for the three axes of rotation. Such as multi-axis CNC machine tools, that is, the CNC machining center in the design, according to the processing object planning set shaft number. The market is more common is the three axis CNC machining center, which has X\Y\Z three linear displacement axis.  The so-called four-axis CNC machining center is generally added a rotation axis, usually called the fourth axis. The corresponding machining center is a four-axis CNC machining center. CNC machining center fourth axis refers to the machining center CNC dividing head, CNC dividing head we usually call the fourth axis, CNC dividing head is more on the market at present, its emergence greatly improves the processing efficiency of the machining center, reduce the cost, a lot of products need to use CNC dividing head when processing,  Because it can complete the three-axis machine tool can not be one-time processing to complete the task, it can make the product through the rotation of multi-faceted processing, greatly improve the processing efficiency, reduce the number of clamping.

What are the benefits of increasing the fourth axis of CNC machining center?

CNC machining center to add the benefits of the fourth axis: can make the tool processing plane more extensive, and can reduce the workpiece repeatedly clamping, improve the overall machining accuracy of the workpiece, to simplify the process, improve production efficiency.  Shorten the production time, so many enterprises need to use four axis machining center, three axis XYZ three linear moving coordinates, the fourth axis is generally a rotation axis, can make the Angle offset between the tool and the workpiece, that is, the tool shaft and the workpiece surface normal into an Angle.  One is to expand the scope of processing, and the other is to make the cutting conditions better.  There is no need for tool alignment for the fourth axis. If there is A position relationship between the Angle and the machined part, after the Angle required by the drawing is offset after tool alignment of the machined part is completed, the current mechanical coordinates are input into axis A of G54 as the programming zero of the fourth axis of the workpiece coordinate system.

For the processing of complex workpiece, it often needs the circular feed motion with X, Y and Z axes to complete the processing of this kind of workpiece.  And CNC vertical machining center usually by the installation of the fourth axis to complete, CNC rotary table is such a typical device.  It can be implemented by loop feed table motion.  CNC rotary table is not only used for arc machining or surface machining with linear feed linkage, but also can realize accurate automatic indexing.

Its function is simple to say, can carry on the feed indexing and circumferential direction feed.  Feed indexing refers to the non-cutting, the workpiece in 360° range, indexing rotation or arbitrary indexing positioning;  The circular direction of the table feed movement, refers to the vertical CNC machining center for cutting, and X, Y, Z three coordinate axes linkage, complex surface processing, which brings convenience to the processing of box parts.  CNC rotary table has become an indispensable part for the vertical CNC machining center which can carry out automatic tool changing multi-process centralized processing.

What is a Five-axis CNC machining center?

According to the configuration of the coordinate axes, there are basically two structural forms.  One is a structure with three straight shafts (X/Y/Z) for tool motion and two additional rotating shafts for rotation and swing of the workpiece.  The other is that one of the five coordinate axes is set in the structure of the spindle head, through the fork spindle head to achieve the swing of the spindle tool, and the swing spindle head can also be firmly clamped, so that it is positioned at any position within the range of the swing Angle.

Five axis CNC machining center in price is much higher than three axis CNC machining center, five axis CNC machining center than three axis CNC machining center price is about 50% higher.  Although the price of the five-axis CNC machining center is high, this high-grade machine tool is especially suitable for machining the mold with complex geometry.  Five axis CNC machining center in the deeper, more steep cavity machining, can through the workpiece or the additional rotary spindle head and swing to create the best process conditions for the machining of the vertical milling cutter, and avoid cutting tools and tool holder and the cavity wall collision, reduce the cutter when processing the jitter and the risk of tool breakage, thus to improve the quality of the surface of the mold, the processing efficiency and cutting tool durability.  Users in the procurement of machining center, is to choose three axis CNC machining center or five axis CNC machining center, should be based on the complexity of the mold cavity geometry and precision requirements to decide.

Fully automatic from material feeding to finished product output, coarse finishing, hardening treatment, super finishing, automatic detection, automatic correction, omnipotent.  The equipment of Tsinfa company will attach importance to environmental protection and energy saving, showing the symbol of green manufacturing.

What is the four axis linkage and five axis linkage of the CNC machining center?

Four axis linkage, five axis linkage generally refers to the machining center or CNC milling machine control system linkage control shaft number.  Four-axis linkage should first have four controllable axes, and the interpolation motion control of the four axes can be carried out simultaneously, that is, the simultaneous linkage control of the four axes can be realized. The motion speed during linkage is the synthetic speed, not the respective motion control. It is that a point in space moves through four axes to another point in space at the same time. The motion speed of each axis in the middle is the speed of each axis synthesized internally through the motion interpolation algorithm of the controller according to the programming speed. Of four axis machining center, that is, X, Y, Z axis and A rotation axis A (can also be A B or C axis, the definition of A, B and C axis is respectively corresponding to the X, Y, and Z axis rotate axis, generally the fourth axis is the axis around the X axis rotation of A shaft or around Y axis B, this depends on the actual machine tool in the form of installation position of the fourth shaft),  And this fourth axis can not only move on its own but also interact with one or two or all four of the other axes.  Some machine tools it has four axes, but it can only move alone, only as the indexing axis, is rotated to an Angle after stopping and locking the axis does not participate in cutting, only for indexing, only can be called four axis three linkage CNC machining center. the total number of axes of a four-axis linkage machine tool can be more than four axes. It can have five axis，six axis or more, but its maximum number of linkage axes is four axes.

the same is true for five axis linkage machine tools. However, five axis linkage machine tools are much more complex than four axis linkage and three-axis linkage. The real five axis linkage system has RTCP function（Rotational Tool Center Point）.

If you want to know more, please contact us. We have a professional technical team to serve you.  Our CNC machining center will be your best choice.