Vacuum Table For Cnc Milling Machine

Parameter 

one. Description of functions and features

1 Overall layout of the machine tool

Vacuum table for cnc milling machine adopts a vertical frame layout, the column is fixed on the bed, the headstock moves up and down along the column (Z direction), the sliding seat moves longitudinally along the bed (Y direction), and the worktable moves laterally along the sliding seat (X direction). to) structure.

Large parts such as bed, workbench, sliding seat, column, and spindle box are all made of Yunnan high-strength cast iron materials, and the shape is made of resin sand technology, and the stress is eliminated by two aging treatments. These large parts are optimized by SW and Ansys to improve the rigidity and stability of the large parts and the whole machine, and effectively suppress the deformation and vibration of the machine tool caused by the cutting force.

2 drag system

The X-axis guide rail pair adopts 45 wide roller linear guide rails, and the Y and Z-axis guide rail pairs adopt 45 wide roller linear guide rails, which have small dynamic and static friction, high sensitivity, small high-speed vibration, no creeping at low speed, high positioning accuracy, and servo drive. Excellent performance, improving the accuracy and accuracy stability of the machine tool.

X, Y, and Z axis servo motors are directly connected to high-precision large-pitch ball screws through elastic couplings, reducing intermediate links, realizing gapless transmission, flexible feeding, accurate positioning, and high transmission precision.

The Z-axis servo motor has an automatic brake function. In the event of a power failure, the automatic brake can hold the motor shaft tightly so that it cannot rotate, which plays a role of safety protection.

Produce detail 

control panel

precision micro cnc milling machine is of Modular design, simple operation, easy to use

Precision Spindle

After precision machining, it has high rigidity and high speed

motor design

The spindle is equipped with a precision motor for stable operation and long service life

workbench

Large-area workbench with good load capacity

Teach you how to choose a cost-effective cnc drilling and milling machine

· The workpiece clamping and positioning of the vertical machining center are convenient;

·Easy to observe the movement track of the cutting tool, convenient to check and measure the debugging program, and can find problems in time, and stop the machine for processing or modification;

The cooling condition is easy to establish, and the cutting fluid can directly reach the tool and the processing surface;

· Chips are easy to remove and fall off, avoiding scratching the processed surface.

Compared with the corresponding horizontal machining center, the vertical machining center has a simple structure and a small footprint, and is widely used in the processing of complex parts such as plates, discs, molds and small shells.

And how to choose a cost-effective product among a wide variety of vertical machining centers?

vertical structure

To understand the cost performance of vertical machining centers, we must first understand its structure. The vertical machining center is composed of supporting components, spindle components, control system, servo system, automatic tool changer, automatic pallet changing system and auxiliary system. The supporting parts are composed of bed, column and workbench, etc., which are the basic parts of the machining center, and most of them are cast iron parts. Machine tool castings are skeletons, the key to withstand cutting torque and disperse vibration, and the basis for the stability of the whole machine, which requires very high rigidity of castings. Craftsmanship and raw materials determine the quality of castings, and castings with good quality are bound to have higher prices. For example, the fuselage of our Seiki is made of Meehanite cast iron, which has an ultra-fine particle structure and has high physical properties. It will not be distorted and deformed in harsh environments, and has good rigidity requirements.

The vertical machining center topone spindle component is composed of spindle motor, spindle box, spindle and spindle support. Its start, stop and rotation are controlled by the numerical control system, and the cutting motion is performed by the tool installed on the spindle. Machining power output components. The main shaft is the key component of the CNC machining center, and the quality of its structure has a great influence on the performance of the CNC machining center. There are domestic and foreign spindles, and the prices of different brands and manufacturers vary greatly.

The CNC system of the vertical machining center is composed of CNC device, programmable controller, servo drive device and motor. They are the control centers for CNC machining centers to perform sequential control actions and complete operations. Currently, Fanuc, Mitsubishi, Siemens, and

4

Automatic tool change

The automatic tool changer of the vertical machining center is composed of a tool magazine, a manipulator and a drive mechanism. The tool magazine is a device that stores all the tools used to process the workpiece. There are many kinds of tool magazines, such as disc type, bamboo hat type and chain type, with a capacity ranging from a few to dozens. When it is necessary to change the tool during the machining process, the manipulator (or other means) will take the tool out of the tool magazine and load it into the spindle according to the instructions of the CNC system. Although the tool change process, tool selection method, tool magazine structure, and manipulator type are different, they are all under the control of numerical control devices and programmable controllers, and the selection and exchange of tools is realized by electric motors, hydraulic or pneumatic mechanisms. The transmission mechanism of the knife magazine and the knife chamber adopts a cam+gear structure, the knife reversing mechanism adopts a self-locking anti-air cut-off structure, the protective sheet metal is made of iron, the knife sleeve component is made of special aging-resistant materials, and the knife arm component is a fully enclosed oil-proof and chip-proof mechanism ( Can be refueled externally) / Nodular casting claws and chrome-plated knife rod / Four sets of clamping ring locking structure, the body and the cutter head are made of HT300, the transmission lubrication is tear disulfide grease, the tool change time is reduced from the previous 4.3S to 2.4S S.

auxiliary system

Auxiliary systems include lubrication, cooling, chip removal, protection, hydraulic pressure and random detection systems. Although the auxiliary system does not directly participate in the cutting movement, it plays a decisive role in guaranteeing the machining efficiency, machining accuracy and reliability of the CNC machining center, so it is also an indispensable part of the CNC machining center. We adopt volumetric and forced lubricating oil systems to ensure that all moving parts of the machine tool are well lubricated. The automatic screw row on both sides is standard, and the front screw row and front chain are optional.

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