Views:172 Author:Site Editor Publish Time: 2020-12-07 Origin:Site
Shearing machines are often used in the sheet metal processing industry. The seemingly simple shearing action actually contains many tricks, from the adjustment steps of the blade gap to the adjustment techniques for different materials, and even the selection of blades. Related to the cutting quality, the following will introduce the relevant content of the shearing blade gap adjustment in detail from many aspects.
The blade gap adjustment hand wheel: (hydraulic swing beam shearing machine)
Electric adjustment of blade edge clearance (hydraulic guillotine shearing machine)
The swing beam shearing machine is equipped with a fast blade gap adjustment mechanism, which can adjust the blade gap that is good for cutting according to different plate thickness and materials, and is equipped with an accurate parameter table for reference selection, and obtains satisfactory cutting quality through reasonable blade gap. As the tool post rotates, the shearing angle and shearing gap of the swing beam shears will change.
Adopt three-points rollers guide, through the force to the front roller by the papilionaceous spring, the cutting beam keeps in touch tightly with the two back rollers. When cutting, the system will electrically adjust the knife edge gap according to the needs of different sheets to obtain better cutting quality.
The swing beam shearing machine have the function of manually adjusting the blade gap, just turn the handle. The guillotine shears have the function of electrically adjusting the blade gap, which can be adjusted more conveniently and accurately through the system, which is beneficial to obtain better shear quality.
Blade gap adjustment steps
The most frequently encountered metal plates are:
1. Thick plates over 13mm.
2. 0.2~4mm thin plate.
3. Flower board.
4. High tension plate (usually used in automobile sheet metal).
5. Titanium plate
The most common blade problem is chipping or tool dent. In response to these problems, we must first determine the gap between the upper and lower blades.
When adjusting the blade, you should set the gap from about 2~3mm thicker than the thickness of the plate. That is to say, when you want to cut a 5mm thick plate, you should start adjusting from 7mm or 8mm, and slowly adjust it down, when you cut it out The cutting surface of the plate shows 1/3 bright surface and 2/3 matte surface, which achieves the best cutting effect. The details are as follows:
The gap setting when cutting the pattern board is tricky, and it must be adjusted from the thickest thickness calculated from the most convex point of the pattern board, instead of using the board thickness directly. Also, cutting the convex side of the pattern face down can extend the life of the tool.
In addition, the material of the plate must be considered, especially when cutting stainless steel. The cutting tool must be sharp, wear-resistant and tough. Therefore, the blade of the hydraulic shearing machine should be discussed. In addition to the angle of the knife edge and other appearance design and production precision, the selected material is a key factor affecting the quality of the tool.
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