Mini Cnc Vertical Milling Machine

Structural features
Mini cnc vertical milling machine adopts high-rigidity structure design, high-strength cast iron, closed frame structure, stronger load-bearing capacity, more stable equipment, and more durable precision.
The column with herringbone structure significantly enhances the rigidity and cutting stability of the machine tool. It is suitable for powerful milling, with increased load and weight capacity, and no problems such as table overhang.
The main shaft adopts the BT40 main shaft produced by Taiwan's first-line brand manufacturers, which has strong cutting force and is driven by a synchronous toothed belt, which is not easy to slip, and can greatly reduce transmission noise and heat generation.
The transmission screw is all made of Taiwan Shangyin brand, and the support of the screw is fixed at both ends and pre-stretched to improve the rigidity of the screw drive.
Each axis adopts the integrated design of the screw nut seat and the body, which greatly enhances the rigidity of the feed axis, and ensures that the accuracy will not be lost under the impact of heavy cutting acceleration.
The column (hard rail) guide rail pair is treated with quenching and plastic coating, so that the equipment has a large load and good cutting motion stiffness, and reduces dynamic and static friction characteristics, thereby improving the motion accuracy, rigidity, reliability and stability of the equipment.

Parameter

The mini cnc vertical milling machine adopts a direct-coupled spindle to increase the machining rigidity of the spindle.
The structure is made of high-grade Meehanite casting material, which is tempered to eliminate internal stress to ensure the best rigidity and precision durability.
The high-rigidity structure is derived from the accumulation of years of experience and data and the design of rationalized structural slenderness ratio, which improves the compression and lateral bending resistance of castings.
High-speed tool change structure design, combined with pre-sensing control, combined with high-efficiency knife punching system for tool change. According to the actual measurement results, the tool-to-tool exchange time is 2.5 seconds, realizing the high-speed tool change function.
The stability is longer, the precision is higher, and the rigidity is stronger. For automobiles, military industry, molds, and mechanical parts, the processing efficiency is high and high quality.

cnc milling machine center uses M99 to realize loop, jump and return

Usually the M99 we see appears at the end of the subroutine, used to end the subroutine and return to the main program.

But the function of the M99 code is much more than that.

In addition to our common function of returning to the main program, M99 can realize loop and jump functions.

In automatic processing, we can use robots or feeders to maintain the continuous processing state of the machine and realize a "lights-off factory".

When the operator prepares the raw materials, the robot will load and unload the raw materials and semi-finished products in a timely manner according to the program settings. Because this action is repetitive, our processing program also needs to be executed repeatedly, automatically opening the protective door of the machine tool, waiting for the loading and unloading of processing materials, automatically closing the protective door, and re-executing the processing code...

At this time, we will use the cycle function of M99. Whether to execute the processing code again, you need to wait for the signal from the robot or the feeder.

According to the setting of the raw material in the feeder or the robot, once the tray or the feeder is in the waiting state, the processing program will be conditionally stopped instead of infinite loop execution.

M99 is used at the end of the main program, and the entire machining program will be executed cyclically;

Used at the end of a subroutine, it will return to the main program.

Before using the jump function of M99, there is a special reminder:

*don't use duplicate line numbers*

Regardless of using GOTOnnnn or M99 Pnnnn, it will unconditionally jump to the line Nnnnn. Once multiple Nnnnn lines appear in the program, the control system will jump to any of them, which is very dangerous for processing, so it is very important to set a unique line number.

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