Gear cutter shaving cutter- Nanjing Arrow-Stone

Gear cutter shaving cutter

There are many narrow grooves on the tooth surface to form the cutting edge, and the gear-shaped gear machining tool is used to machine the workpiece according to the principle of helical gear meshing. During processing, the cutter cuts beard-shaped fine chips from the tooth surface of the gear, so it is called a shaving cutter. Shaving cutters are used to finish gear teeth after hobbing and shaping (see gear machining). The commonly used disc-shaped shaving cutter is like a hardened helical cylindrical gear. The groove on the tooth surface has two forms: one is a circular or spiral through groove on the whole gear ring. The cross section of the groove can be rectangular or trapezoidal. This kind of shaving cutter only grinds the front surface (groove part) after blunt. The tooth shape and outer diameter do not change. Since the through groove cannot be made too deep, it is only suitable for modulus. Shaving cutters less than 1.75mm; The other is that the grooves on both sides are blocked and are inserted separately with comb-shaped slotted cutters. In order to enable the slotted cutters to withdraw, inclined small holes are drilled at the root of each tooth. This kind of shaving cutter needs to re-grind the tooth shape and tooth top cylindrical surface after being blunt. In order to reduce the cutting load of each tooth, the number of teeth of the shaving cutter is large, and the prime number is generally taken to avoid having a common factor with the number of teeth of the gear to be cut, otherwise the error of the shaving cutter will be copied to the gear to be processed. According to international standards, the precision of the shaving cutter is AA, A and B. In actual production, the gear tooth profile shaved with the correct involute tooth profile shaving cutter often deviates from the correct involute near the pitch circle of the gear and is recessed inward with a deviation of about 0.01~0.03mm. The tooth profile deviation of straight tooth gear is larger than that of helical gear. In order to obtain the correct involute tooth profile of the workpiece, the tooth profile of the shaving cutter should be corrected. In mass production, the tooth profile correction curve of the shaving cutter is determined by experimental methods. The shaving cutter can process straight and helical internal and external cylindrical gears with high production efficiency and smooth surface. In addition, there are worm gear shaving cutters for processing precision worm gears. The type and parameters of the basic worm should be the same as the working worm (see worm drive) matched with the worm gear. Like the gear shaving cutter, it has many narrow grooves on the helical surface to form the cutting edge and accommodate the chips. Worm gear shaving cutters are difficult to manufacture and are only used when machining worm gears with high precision requirements. (See color picture gear cutting tools-hobs, gear shaper cutters, shaving cutters)

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Gear cutter

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There are many narrow grooves on the tooth surface to form the cutting edge, and the gear-shaped gear machining tool is used to machine the workpiece according to the principle of helical gear meshing. During processing, the tool cuts beard-shaped fine chips from the tooth surface of the gear, so it is calledShaving cutter. Shaving cutters are used inhobbingThe gear teeth are finished after gear cutting (see gear machining). The commonly used disc-shaped shaving cutter is like a hardened helical cylindrical gear. The groove on the tooth surface has two forms: one is a circular or spiral through groove on the whole gear ring. The cross section of the groove can be rectangular or trapezoidal. This kind of shaving cutter only grinds the front surface (groove part) after blunt. The tooth shape and outer diameter do not change. Since the through groove cannot be made too deep, it is only suitable for modulus. Shaving cutters less than 1.75mm; The other is that the grooves on both sides are blocked and are inserted separately with comb-shaped slotted cutters. In order to enable the slotted cutters to withdraw, inclined small holes are drilled at the root of each tooth. This kind of shaving cutter needs to re-grind the tooth shape and tooth top after being blunt.Cylindrical surface。
In order to reduce the cutting load of each tooth, the number of teeth of the shaving cutter is large, and the prime number is generally taken to avoid the difference with the number of teeth of the gear to be cut.common factorOtherwise, the error of the shaving cutter will be copied to the gear being processed. The precision of the shaving cutter is in accordance with international standards.Class AA, grade a and grade B. In actual production, use the correctinvoluteThe gear tooth profile shaved by the tooth-shaped shaving cutter is often in the gear'sPin circleThe deviation from the correct involute nearby is recessed inward, with a deviation of about 0.01~0.03mm. The tooth profile deviation of spur gears is higher than that of spur gears.helical gearIt's bigger. In order to obtain the correct involute tooth profile of the workpiece, the tooth profile of the shaving cutter should be corrected. In mass production, the tooth profile correction curve of the shaving cutter is determined by experimental methods.
The shaving cutter can process straight and helical internal and external cylindrical gears with high production efficiency and smooth surface. In addition, there are worm gear shaving cutters for processing precision worm gears. The type and parameters of the basic worm should be the same as the working worm (see worm drive) matched with the worm gear. It is the same as the gear shaving knife.Helical surfaceMany narrow grooves are opened to form the cutting edge and contain the chips. Worm gear shaving cutters are difficult to manufacture and are only used when machining worm gears with high precision requirements. (See color map gear machining tool-hob ﹑Gear shaperShaving cutter)

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