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

Kiểm tra, sai số di chuyển giữa cảm biến vòng quay của động cơ và cảm biến scale nhận biết vị trí hiện tại của bàn máy theo các trục X,Y,Z. Sau khi hoàn thành gói laser check máy sẽ giảm được sai số gia công đảm bảo dung sai kích thước.

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 Adjust linear reflector parallel to the beam splitter

2.4 Position optics to the shortest distance

2.5 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)

ĐẶT NHỎ HƠN 5S,

ĐẶT 0.05mm

3.5 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

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

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

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

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 Set potentiometer to 100% and wait until the measuring is

completed Save captured data and analyze

6 Analyze

7 Compensation

7.1 Compensation is required in case tolerances are exceeded

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

Combined (Attention if separate compensations are active)