Symmetrical processing tool and processing method of herringbone gear hole keyway

Abstract

The invention relates to a symmetrical processing tool and a processing method of a herringbone gear hole keyway. The symmetrical processing tool of the herringbone gear hole keyway comprises a tool body, wherein a positioning hole and a keyway positioning hole are respectively formed in both ends of the tool body along the direction of a center line, base keyways are respectively formed in the tool body on the left and right sides of the positioning hole along the direction of the center line, a plurality of threaded holes are formed from top to bottom in the side wall of one end, in which the keyway positioning hole is formed, of the tool body, the centers of the threaded holes are located in the center line of the side wall, a positioning sleeve is arranged in the positioning hole, a keyway positioning shaft is arranged in the keyway positioning hole, and adjusting screws are arranged in the threaded holes. The symmetrical processing tool has the advantage of reasonable structural design, and the processing quality of a workpiece is increased by positioning the tooth profile, tooth surface and hole of the end surface of the reference circle of a herringbone gear according to the technical requirement that the center of the herringbone gear end keyway, the center of the hole keyway and the center line of the hole are on the same straight line by controlling the side symmetry of the keyway in the tool.

Description

Technical field: [0001] The invention relates to the technical field of symmetrical processing of key grooves of herringbone gears, in particular to tooling and a processing method for symmetrical processing of key grooves in inner holes of herringbone gears. Background technique: [0002] With the continuous development of the manufacturing industry, all walks of life have put forward higher requirements for the quality of products. Especially in recent years, the national automobile industry has developed rapidly, and consumers have put forward higher requirements for the quality of automobile products. What comes is that the precision requirements of high-end cars for forging equipment are becoming more and more stringent, and the competition in the forging manufacturing industry is becoming more and more fierce. Therefore, how to improve the operating precision of forging equipment such as mechanical presses, improve production efficiency, and reduce production costs are...

AI Technical Summary

Problems solved by technology

like figure 1 Shown is the left and right middle herringbone gears, which are the key components in the transmission system of the closed double-point press. This part requires the center of the tooth grooves on the end face of the herringbone gear, the center of the keyway in the inner hole, and the centerline of the hole must be on the same straight line, with a tolerance of 0.04mm. If the processing accuracy of the two keyways of the left and right middle herringbone gears is inconsistent, it will affect the synchronization of the left and right connecting rods and reduce the precision of the press

like figure 2 Shown is the existing herringbone gear keyway processing method, first use the keyway marking tool to center the line on the end face of the herringbone gear, then draw a circle with the end face line as the center, the diameter of the circle is equal to the width of the keyway, and finally draw the keyway line , Roughly insert the keyway, leave a margin of 2mm on both sides, and process the bottom of the groove to the dimension line. The above keyway processing method is relatively cumbersome to operate, and the processing accuracy is difficult to guarantee. After the keyway is processed, it cannot be measured, and the quality problem can only be reflected when it is assembled. , causing a lot of inconvenience to the overall assembly of the press

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