Machining Typical Turning Parts; Operations Before Programming; Programming For Machining A Spherical Surface (Example 1) - Siemens SINUMERIK User Manual

13

Machining typical turning parts

13.1

Operations before programming

Operating sequence
1.
2.
3.
4.
5.
6.
13.2

Programming for machining a spherical surface (Example 1)

Workpiece drawing (unit: mm)
Coordinates of key machining points
Point
1
2
3
Technical requirements
● The arc transition must be smooth, without lapping.
● The cutting trace must be even.
● The sharp edges must be rounded.
Blank data
Blank material: aluminum bar
Blank diameter: 45 mm
Blank length: 100 mm (machining limit along the Z axis: Z-66; three-jaw chuck clamping length: 25 mm)
216
Turn on the power supply for the machine tool. Proceed with the operations for the refer-
ence point approach, if the machine axis is equipped with an incremental encoder (see
Chapter "Switching on and referencing (Page 18)").
Create the required tools (see Section "Creating a tool (Page 20)").
Activate the tools and the spindle (see Section "Activating the tool and the spindle
(Page 23)").
Proceed with the handwheel assignment operations if the machine manufacturer has not
assigned the handwheel for the control system (see Chapter "Assigning the handwheel
(Page 24)").
Proceed with the tool setting operations to finish measuring all the tools (see Section
"Additional method for measuring the tool (Page 258)").
Verify the tool offset result to guarantee the safety and correctness of machining (see Sec-
tion "Verifying the tool offset result (Page 31)").
X coordinate
33.762
40.704
44.000
Z coordinate
-30.726
-56.290
-60.000
Programming and Operating Manual (Turning)
01/2017