Application of Huazhong CNC in CNC Milling Machine

(Hubei 441000) Hu Jinbo adapter board, with 96-bit input and 96-bit output point control, has strong anti-interference ability.

The number of CNC axes is 7 axes, among which X, Y, Z, L/, V, W are linear motion axes, and C axis is a rotary axis, which is controlled by two axis position ring control boards.

The servo system has high reliability and uses Japanese Panasonic's drive unit and motor to have sufficient servo precision and strong dynamic response capability.

8G hard disk is used, it has enough storage space, can access the processing program of various workpieces, and can edit and manage the workpiece conveniently.

The software configuration open architecture of the numerical control system generally adopts a modular and hierarchical structure, and provides a unified application interface through various forms, which is portable, scalable, interoperable and scalable. The characteristics are the internal openness of the system and the openness between the components of the system.

Huazhong CNC system uses industrial PC as the basic hardware support environment, DOS operating system as the software support environment, realizes an open CNC system software platform, provides a convenient secondary development environment, and can be used for different CNC systems. Configure, use, and provide a standard style software interface.

The CNC milling machine is an open system with a certain degree of openness developed on the basis of the Huazhong I general-purpose CNC system platform. Its underlying software is the software platform of Huazhong CNC system, in which TRM is a real-time multi-task management module, responsible for CNC task and equipment maintenance and management, NCBIOS is the basic input/output system, and manages all external parts of CNC system. Control objects, including device driver management, location control, PLC scheduling, real-time interpolation calculations, and internal monitoring.

A structured background program that is separate from the underlying software and does not depend on hardware.

Huazhong CNC system software structure.

Position Control I/O Control Process Control Software Editing Program||Parameter Setting|Workpiece Detection and Fixed Cycle in Machining (1) Workpiece Inspection As shown, the upper end of the workpiece is a machined groove, which is used to position the following to be processed. The groove, referred to as the positioning groove. When machining, the placement of the workpiece is arbitrary. When the probe is pressed against the workpiece, the probe will have a deformation amount, and the rotation angle of the workpiece is a one-to-one correspondence. Therefore, the angular position of the center line of the positioning groove can be determined by the deformation amount of the probe. .

The amount of deformation on the surface is symmetrically distributed, and the amount of deformation is constantly changing as the probe moves continuously on the slope. When the probe is outside the positioning groove or at the bottom of the groove, the deformation of the probe is always fixed and the value does not change. In this way, the amount of deformation of the probe at the bottom of the positioning groove can be used as a basis for judgment. When the deformation of the probe at the lower slope is less than 厶1+0.1, the angle at this time is recorded. When the deformation of the probe on the upper slope is greater than 0.1, the angle at this time is recorded as a2, then the position of the centerline The detection of a (a|+a2) workpiece is mainly to determine the position of the center line of the positioning groove. If the position of the center line cannot meet the processing requirements, the machining error cannot be controlled. Since the sampling period of the data is relatively short, assuming that the change value of the deformation amount of the probe in each sampling period is AX, the angular error recorded by the two sections of the slope should be within two sampling periods, that is, at (AA+0.1-AX). Between the angles corresponding to (厶+0.1+AX), adjust the size of AX to make the position of the center line of the positioning groove meet the processing requirements.

(2) Fixed cycle The machining of this machine is done by the fixed cycle of CNC. The type of workpiece is different and the content of the fixed cycle is different. Now we introduce a fixed cycle of 6-slot workpiece with equal groove width and equal groove length. Its cycle is as follows: press the cycle start button, if the X, L7 axis is within the safe point, then retreat to the safe point.

The workpiece is clamped, the probe advances, contacts the positioning groove, and the table rotates after 8 s. The workpiece is detected. After the first groove width is detected, the rotation is stopped, and the measurement data is sent to the CNC for processing, and the probe returns.

The workbench converts the value calculated by the CNC to the machining position, and uses the machine coordinate of the current C axis as the origin of the C axis workpiece coordinate. The worktable is hung tightly, and an in-position signal is sent after being hung in place.

1 Cooling, chip removal motor starts, spindle motor starts, V, 2, V, W axis quickly to program set point, X, 17 axis fast forward to the tool setting point, then work into ap+4 (first processing) Up is the depth of cut).

After the first machining is completed, the X and C7 axes retreat to the tool setting point, the workbench is released, and the in-position signal is sent after the position is reached. The workbench starts to rotate, and the first indexing is performed. After the indexing is completed, the workbench is hung. Tight, hold the message after the hug: X, U axis each retreat 50mm, Y, Z, V, W are back to the knife point, the spindle stops, cooling, chip evacuation, workpiece release, blowing open, workbench Hold tight and loose.

Because it is a double-knife machining at the same time, it is only necessary to divide the machine twice, and it can process 6 slots in three times, or use single-blade machining. During the machining process, the speed of the spindle and the working speed should be matched to have a small surface roughness. The speed parameter can be set in the system menu, which is very convenient.

(Finish)

The Earth Clamps has different types suit for different countries .The American type ,the Japanese type ,the Netherland type .

We have different kinds ,such as the following MS300A ,MS500A ,MS600A,RS300A,NS300A,NS500A,NS600A,NS300A-1,TC300A,TC500A,TC600A .

The customer can choice based on the welding torch they used.

Earth Clamps

Earth Clamp, Welding Earth Clamp, American Type Earth Clamp, 300A Earth Clamp, 400A Earth Clamp

EDAWELD COMPANY LIMITED , http://www.jsedaweld.com