cách dùng laser để hiệu chuẩn máy CNC procedure-X-axis_EN

Linear measurement X-axis using the
example of a HPM450U
Basic:
•
Please refer to the Renishaw help file for descriptions and non documented
points
•
Disable/remove eventually existing compensations
•
The example of a HPM450U X-axis is used in this document
•
Caution collision possible!


Procedure:
1.
Build-up hardware and connect with computer
1.1 Switch on the laser in advance to start the warm-up process
1.2 The beam splitter and the linear reflector are needed for positioning
measuring

2.

Adjust laser and optics (Video available)
2.1 Set optics and the tripod roughly in plump line (Set the quick translation
lever, fine translation control as well as angular yaw adjustment screw into
the midposition)
2.2 Adjust beam splitter square to the measuring axis.


2.3

2.4
2.5

Adjust linear reflector parallel to the beam splitter
Position optics to the shortest distance
Setup the laser parallel to the measuring axis, that the laser beams
reflecting back to XL laser target (shutter)
2.6 Move MC axis until both laser beams are overlapping
2.7 Connect target (plastic cap) into the beam splitter
2.8 Position optics on the largest distance
2.9 Align the laser beam to the target (plastic cap) only using linear movement
2.10 Remove target (plastic cap)
2.11 Use the angular yaw adjustment screws to overlap both laser beams and
use linear movement to align the overlapping laser beams to the target of
the XL laser (shutter)
3.

Setup measuring
3.1 Run "Renishaw Laser XL" "Position"
3.2 Verify if the automatic compensation is enabled and set the material
expansion compensation to 11.5ppm/°C
3.3 Determine in the corresponding compensation file the attainable
measuring points (Overrun step size)


3.4

Create new measurement (Automatic Setup)

3.5

ĐẶT NHỎ HƠN 5S,
ĐẶT 0.05mm
Save created measurement and click finish button


4.

Produce part program (Finish measurement, or else the described point
can’t be chosen)

4.1

If request appears confirm with “yes”

4.2

Name NC-program and save (Delete ending .rtl)

4.3

Select Heidenhain and proceed with “OK” button


4.4

Most of the input values are assumed by the part program generator

Selectable
IMPORTANT: Input axis
Input 4sec dwell period
Feed rate can be increased

4.5 Rename NC-program from *.RPP to *.I (ISO-Code)

4.6

Copy NC-program to the control (Attention: The file can’t be successfully
transferred if G71 is missing in the headline/footer. No error message will be
displayed


5.

Execute measurement
5.1 Move the measuring axis to the first measuring REF-Position and set
datum
(MC) to the same value as REF-position
5.2

Run NC program and after reversal movement reduce potentiometer to 0

5.3

Run the measurement in the program "LaserXL" "Position" with "START"
button. The measuring parameter will be displayed once again. Review
parameters (see chapter 3.4).

5.4

Set preset to the same value as REF-position

5.5

Reset (Display will be set to the first measuring point and the first
value will be captured)


5.6

6.

Set potentiometer to 100% and wait until the measuring is
completed. Save captured data and analyze

Analyze


7.

Compensation
7.1 Compensation is required in case tolerances are exceeded


Combined
(Attention if separate compensations are
active)

7.2

Paste values into the compensation table on the control as well as
backlash value into MP710.x cộng dồn vào cột 1F trong X.COM