Manufacturing Technology: Unit IV: CNC Machines

model specifications of cnc system

CNC Machines - Manufacturing Technology

Model specifications of CNC system: CNC Machines - Manufacturing Technology

MODEL SPECIFICATIONS OF CNC SYSTEM

Parameters     Characteristics

Number of controlled axes: Two/Four/Eight

Interpolation: Linear/Circular/Parabolic /Cylindrical

Resolution: Input resolution (feedback) Programming resolution

Feed rate: Feed/Min or Feed / Revolution

Rapid traverse rate: (i) Feed rate override (ii) Feed per mmute

Operating mode: Manual / Automatic / MDI / Input /Output /

Machine Data Set-Up Incremental Absolute

Type of feedback: (i) Digital (Rotary encoder)

(ii) Analog (Transducer)

Part program handling: (i) Memory

(ii) Part program input devices

(iii) Output devices

(lv) Editing of part programs

Part programming. (i) through MDI

(ii) Graphic simulation

(iii) Blue print programming

(iv) Background editing

(v) Menu driven programming

(vi) Conversational programming.

Compensations:

(i) Backlash

(if) Lead screw pitch error

(iii) Temperature

(iv) Cutter radius compensation

(v) Tool length compensation

Programmable logic controller:

 (i) Built-in (integrated)/external

(ii) Type of communication with NC,.

(iii) Number of outputs

(iv) Inputs

(v) Timer

(vi) Counters and flags

(vii) User memory

(viii) Program organization

(ix) Programming languages.

Thread cutting / tapping:  Types of thread that can be cut

Spindle control: (i) Spindle orientation

(ii) Analog/Digital control

(iii) Spindle speed overrides 

(iv) RPM

(v) Constant surface speed.

Other features:

 (i) Inch/metric switch over

(ii) Mirror imaging

(iii) Scaling

(iv) Coordinate rotation system

(v) Built-in fixed cycles

(vi) Safe zone programming

(vii) Built-in diagnostics

(viii) Safety function

(ix) Direct numerical control interface

(x) Network interface capability.


Manufacturing Technology: Unit IV: CNC Machines : Tag: : CNC Machines - Manufacturing Technology - model specifications of cnc system