Bending accuracy is a crucial technical specification for CNC press brakes. Key factors influencing bending accuracy include the sheet material, die-casting mold, machinery, and personnel. Let's discuss the specific aspects of these key factors:
Key factors for sheet metal
1. Straightness of the sheet metal's reference points
2. Is the stress distribution of the sheet metal uniform
3. Is the thickness of the sheet metal consistent
Key factors for die-casting molds
4. Is the accuracy of the upper and lower, left and right die-casting molds accurate
5. Is the lower die compensation device accurate and compatible with the frame design
6. The upper die fixture must be highly accurate.
Key factors for mechanical equipment
7. Straightness of the clamping opening of the press brake slide (Y and X directions)
8. Repeatability and random accuracy of Y1 and Y2
9. Is the clearance between the press brake slide and the frame guide rail reasonable
10. Is the verticality and inclination of the frame reasonable
11. Connection between the cylinder and the slide
12. Strength and accuracy of the frame and slide
13. Repeatability and random accuracy of the backgauge system (X and R directions)
14. Is the computer system fully adjusted
15 Is the hydraulic system fully adjusted
16 Is the hydraulic system compatible with the computer settings
Human factors
17 Is the left and right thrust consistent when pushing the iron plate during bending