Several factors affecting the quality of saw blade grinding!
1. When inherent defects exist in the substrate, grinding errors will occur regardless of the equipment used. Defects include large substrate deformation, inconsistent thickness, and large internal hole tolerances. Large substrate deformation causes deviations in the two side angles, while a large internal hole in the substrate causes deviations in the radial jump; inconsistent substrate thickness causes deviations in the back angle and front angle. If the accumulated tolerance is too large, the quality and precision of the saw blade will be seriously affected.
2. The structure of the gear grinding machine also affects gear grinding. The quality of gear grinding for alloy circular saw blades depends on the machine type structure and assembly. There are currently two main types of machines on the market: one is the German Vollmer type, which uses vertical grinding. Its advantages include the use of hydraulic stepless motion, a V-shaped guide rail and ball screw for the entire feed system, slow feed-in and fast feed-out of the grinding head or large arm, adjustment of the clamping plate cylinder center, flexible and reliable blade support, accurate tooth positioning, firm automatic centering of the saw blade positioning center, adjustable angle, reasonable cooling and flushing, human-machine interface, high grinding precision, and reasonable design of the pure grinding machine; the second type, such as Taiwanese and Japanese models, uses mechanical transmission, which has problems such as gear and mechanical clearance, poor dovetail sliding precision, low clamping plate stability, difficulty in adjusting the blade center, poor reliability of the tooth pulling mechanism, and the two sides and left and right back angles of the plane are not ground in the same center, resulting in large deviations, difficult angle control, large mechanical wear, and difficulty in ensuring precision.
3. Welding factors: During welding, large deviations in the centering of the alloy affect the grinding precision, causing one side of the grinding head to be subjected to high pressure and the other side to low pressure, and the back angle is similarly affected by the above factors. Poor welding angles and unavoidable human factors all have unavoidable effects on factors such as the grinding wheel during grinding.
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