Automatic tooth aligning mechanism for large-sized gear hobbing machine and tooth aligning method thereof

Abstract

The invention discloses an automatic tooth aligning mechanism for a large-sized gear hobbing machine. The automatic tooth aligning mechanism comprises a support, a telescopic mechanism, and a PLC (programmable logic controller); the height of the support can be adjusted along an axis Y; a moving rack and a proximity switch are arranged on the telescopic mechanism; the moving rack is in sliding fit with the support along an axis X. The PLC is disposed on the large-sized gear hobbing machine and is connected with the telescopic mechanism and the proximity switch. The invention further discloses a tooth aligning method of the automatic tooth aligning mechanism. The tooth aligning method includes: manual tool setting, positioning of the tooth aligning mechanism, tooth aligning for a next gear and the like. The automatic tooth aligning mechanism and the tooth aligning method thereof have the advantages that the structure is simple, an operating method is simple and easy, the subsequent gear can be automatically aligned just by ensuring effectiveness of initial alignment, artificial error is reduced, uniformity is good, the precision is high, and the mechanism and the method are especially suitable for batch processing; meanwhile, hobbing allowance is uniformly distributed, and the service life of a hob is greatly prolonged.

Description

technical field [0001] The invention belongs to the field of accessories or devices combined with or installed on the gear cutting machine or specially suitable for the forming part of the gear cutting machine, and relates to an automatic gear alignment mechanism and a gear alignment method for a large gear hobbing machine. Background technique [0002] The large gears in the existing construction machinery are not required to be very high in precision. After the rough machining of the gears is heat treated and quenched, instead of the gear grinding process, the gear hobbing machine is directly used for finishing, so as to achieve the purpose of saving costs. However, during processing, it is required that the cutting edge of the hob must be opposite to the tooth groove of the gear. Since the machining allowance is only 0.3-1mm, the allowance must be evenly distributed in order to reliably ensure the machining accuracy and the continuous use of the tool. To replace a gear, i...

AI Technical Summary

Problems solved by technology

However, during processing, it is required that the cutting edge of the hob must be opposite to the tooth groove of the gear. Since the machining allowance is only 0.3-1mm, the allowance must be evenly distributed in order to reliably ensure the machining accuracy and the continuous use of the tool. To replace a gear, it is necessary to manually align the hob and the gear, so that the margins on both sides of the hob are roughly the same, resulting in low production efficiency and poor alignment consistency

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