Free isometric adjustment of press brake mold
Free equal height adjustment (mold height pre-adjustment)
Purpose: To ensure that the upper and lower molds are of the same height in a free state, to avoid bending errors or mold damage caused by uneven force.
1. Preparation
Turn off the power of the equipment, install the upper and lower molds and fix them preliminarily.
Clean the oil or foreign matter on the mold surface and ensure that the contact surface is flat.
2. Manual height adjustment
Remove the upper molds on the left and right sides.
Use a micrometer or laser detector to measure the height of key points of the upper and lower molds (usually the four corners and the middle).
By manually adjusting the equal height bolts (or gaskets) on the mold base, the height error of each measuring point of the upper and lower molds is ≤0.02mm.
After tightening the adjusting bolt, retest to prevent deviation caused by loosening.
3. Verify freedom and height
Manually rotate the machine to observe whether the upper and lower molds are in even contact when closed.
Use a feeler gauge to check the mold gap after closing to ensure that there is no local overtightening or gaps.
Precautions
1. Safe operation: Be sure to turn off the power before adjustment and wear protective gloves and goggles.
2. Tool selection: High-precision measuring tools (such as micrometers, laser detectors) are preferred.
3. Step-by-step verification: Each step of adjustment must be verified by trial folding to avoid cumulative errors.
4. Equipment differences: Different models of bending machines may use mechanical/hydraulic compensation methods, which require reference to the equipment manual for adjustment.
Through the system adjustment of the above steps, the bending accuracy (angle error ≤ 0.5°) and mold service life can be significantly improved, and material waste and equipment loss can be reduced. In actual operation, it is necessary to respond flexibly based on experience, for example, for thick plates or high-strength materials, the pressure compensation amount needs to be appropriately increased.
