Method and device for machining duplicate gear through numerical control milling machine
A duplex gear and CNC milling machine technology, which is applied to gear tooth manufacturing devices, components with teeth, metal processing equipment, etc., can solve problems that cannot meet production and use, and achieve convenient and fast vertical feeding and high processing efficiency , the effect of convenient operation
Pending Publication Date: 2019-12-03
GUIZHOU QUNJIAN PRECISION MACHINERY
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Therefore, there are still deficiencies in the prior art, which cannot
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[0023] The clamping method in this example is to install the three-jaw chuck 3 on the four-axis indexing plate 1, the mandrel 4 is installed on the three-jaw chuck 3, and the mandrel 4 is clamped by the three-jaw chuck 3, and the to-be-processed The double gear blank 6 is installed on the mandrel 4 and fixed on the three-jaw chuck 3, and the coaxiality of the calibration mandrel 4 is within 0.01 mm; The runout of the circle and the end face is less than 0.003mm; put the pressure plate 7 on the mandrel 4 and screw on the nut 8. Correct the runout of the outer circle and end face of the customized milling cutter 2 to less than 0.003mm. The starting angle of the four-axis indexing plate 1 is 0 degrees, and the tooth groove is machined to the full tooth depth to meet the requirements of gear parameters: tooth profile Ff, ring gear runout Fr, tooth direction Fβ, etc.
[0024] The calculation of dual gear parameters includes:
[0025] Number of teeth z, modulus m, pressure angle а...
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The invention discloses a method and device for machining a duplicate gear through a numerical control milling machine. The method is characterized in that a to-be-machined duplicate gear blank is rotated through an index plate so as to meet the tooth pitch requirement and the angle position requirement between an A-segment gear tooth and a B-segment gear tooth; a milling cutter used in the methodadopts a customized gear milling cutter corresponding to the modulus m, the tooth number z, the pressure angle a and the deflection coefficient of the duplicate gear; during the specific machining, the to-be-machined duplicate gear blank is installed on a four-axis index plate of the numerical control milling machine through a clamp, the customized gear milling cutter is installed on a main shaftof the numerical control milling machine, a machining program of the numerical control milling machine is compiled, and the milling machine is controlled through the program to machine the tooth profiles of the A-segment gear tooth and the B-segment gear tooth. The method and the device have the advantages of being simple and applicable, satisfying the common normal value and the pitch error of the gears, being convenient for a cutter to feed in the transverse and vertical directions, being able to align quickly, position accurately and finish the tooth profile machining through one-time clamping and having the high machining precision and efficiency.
Description
technical field [0001] The invention relates to a method and a device for processing double gears by using a numerical control milling machine, and belongs to the technical field of special-shaped gear processing. Background technique [0002] Among the high-end precision transmission special-shaped gears used in aviation, aerospace, ships and other fields, there is a double gear, which is formed by parallel connection of a gear with a smaller diameter and a gear with a larger diameter; There are gear teeth in a certain arc range, and there are no gear teeth in the rest. Moreover, there are requirements on the angular position between the two tooth segments of the double gear, as well as requirements on surface roughness. If the above-mentioned double gear is processed by traditional gear hobbing and gear shaping, there will be interference between the tool and the workpiece sector and cannot be processed. In addition, the gears used in the fields of aviation, aerospace, a...
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Login to View More IPC IPC(8): B23F5/20B23F23/06
CPCB23F5/20B23F23/06
Inventor刘贵彬何永佳杨华
OwnerGUIZHOU QUNJIAN PRECISION MACHINERY