HEIDENHAIN MANUALPLUS 4110 Manuale utente

MANUALplus

4110

NC Software

507 807-xx

9/2004

User Training

This manual is intended to improve your operation and programming of the MANUALplus 4110.

By way of examples, the setup of the lathe, the description and measurement of tools, and the

creation of cycle programs and ICP contours are explained step by step.

These examples were created with NC software 507 807-xx.

All texts, pictures and graphics, as well as any parts thereof, are copyrighted material. They may

only be copied and printed for private, scientific and non-commercial informative purposes,

and only if they include this copyright notice. Dr. JOHANNES HEIDENHAIN GmbH reserves the

right to revoke this permission at any time. Without obtaining written permission in advance from

Dr. JOHANNES HEIDENHAIN GmbH, the texts, pictures and graphics may not be duplicated,

archived, stored on a server, included in newsgroups, used in online services, saved on

CD-ROMs or printed in publications. The unlawful duplication and/or dissemination of the

copyrighted texts, pictures and graphics will be prosecuted according to civil and criminal law.

Basic Knowledge

Fundamentals

User Components

System Operation

Tool Management

Setup

Tool Measurement

Machine Setup

Longitudinal Machining Example

Programming

Surface Machining Example

Recess Machining Example

Simulation

Program Execution

HEIDENHAIN MANUALplus 4110 Basic Knowledge 1.1

Axis directions and reference points

Axis directions

X axis: the cross slide is referred to as

the X axis. All X-axis values that are

displayed or entered are regarded as

diameters.

Z axis: the saddle is referred to as the

Z axis.

Traverse motions:

Program a positive value to depart

the workpiece.

Program a negative value to

approach the workpiece.

Reference points

The machine datum (M) is the origin

of the machine coordinate system. As

a rule, the machine datum is at the

intersection of the Z axis with the

spindle surface.

The workpiece datum (W) is the

origin of the workpiece coordinate

system. As a rule, the workpiece

datum is at the intersection of the Z

axis with the end surface.

HEIDENHAIN MANUALplus 4110 Basic Knowledge 1.2

Lathe design

Tool in front of or behind the workpiece

Depending on the design of the lathe, the tool is either in front of or behind the workpiece. The

MANUALplus 4110 detects the design of your machine, and takes the position of the X axis into

account for the graphic support, the simulation and the machining of the workpiece.

Tool in front of the workpiece

Tool behind the workpiece

This documentation assumes a lathe with tools in front of the workpiece.

HEIDENHAIN MANUALplus 4110 Basic Knowledge 1.3

The coordinate system

Two-dimensional coordinate system

C axis

Accuracy

Positions can be programmed to an accuracy of 1 µm (0.001 mm) or 0.001°. This is also the

accuracy with which they are displayed.

The position of the tool tip is clearly

defined by its X and Z coordinates in a

two-dimensional coordinate system.

The MANUALplus 4110 recognizes

linear and circular contour

elements. A workpiece contour is

programmed by entering the

coordinates for a succession of points

and connecting them with linear or

circular contour elements.

The coordinates entered for the axes X

and Z are referenced to the

workpiece datum.

Angles entered for the C axis are

referenced to the datum of the C axis.

HEIDENHAIN MANUALplus 4110 Basic Knowledge 1.4

Tool-tip radius compensation (TRC)

Programmed paths of traverse are

referenced to the theoretical tool tip

S. The radius of the tool tip on lathe

tools causes inaccuracies when

machining tapers, chamfers and radii.

These inaccuracies are removed with

the cutter radius compensation. A

new path of traverse (the equidistant

line) is calculated to compensate for

this error.

HEIDENHAIN MANUALplus 4110 Basic Knowledge 1.5

Feed rate and spindle speed

Feed rate

You select from the following methods:

Feed rate per revolution in mm/rev

The feed rate depends on the spindle speed. The tool is moved at the programmed value for

each spindle revolution.

Feed per minute in mm/min.

The feed rate is independent of the spindle speed. The tool constantly moves at the

programmed value.

Spindle speed

You select from the following methods:

Constant spindle speed

You program the spindle speed directly. The spindle speed is independent of the diameter the

tool is working on.

Constant cutting speed

You program the spindle speed indirectly. The MANUALplus 4110 changes the spindle speed

depending on the diameter momentarily being worked on by the tool. This results in a constant

cutting speed.

Example:

Constant spindle speed:

Sections 1 to 3: identical spindle

speeds

Constant cutting speed:

Section 1: High spindle speed

Section 2: Constantly decreasing

spindle speed

Section 3: Low spindle speed

Maximum speed (speed limitation):

If the constant spindle speed that you program is greater than the specified maximum

spindle speed, the maximum speed is valid.

For constant cutting speed the speed is limited by the defined maximum spindle

speed.

HEIDENHAIN MANUALplus 4110 Basic Knowledge 1.6

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