Cylindrical toothed tool and its processing technology

Abstract

The invention relates to a cutter and a machining technology thereof, in particular to a machining technology for a cylindrical toothed cutter. The machining technology comprises the following steps of step 1, preparation of a forging blank of the cylindrical toothed cutter; step 2, rough machining; step 3, annealing treatment; step 4, plane grinding processing; and step 5, shape machining of thecutter. By adopting the technical scheme, the cylindrical toothed cutter machined by adopting the machining process of the cylindrical toothed cutter has the advantages of high precision and long service life.

Description

technical field [0001] The invention relates to a cutting tool and its processing technology, in particular to a cylindrical toothed cutting tool and its processing technology. Background technique [0002] Due to the rapid development of automobiles such as cars and light vans in my country, the demand for automobile sealing strips has also increased rapidly. Automotive sealing strips can generally be divided into pure rubber sealing strips and composite sealing strips. Usually, the composite sealing strips are longitudinally covered with metal skeleton materials, that is, the automobile sealing strips are embedded with skeletons, which can strengthen the shape and fixation. At present, the embedded frame of the automobile weather strip is processed by continuous stamping. However, due to the narrow width of the embedded frame of the automobile weather strip, the size of the punched hole is small. Teeth, (1) The traditional stamping process is to directly punch off the mat...

AI Technical Summary

Problems solved by technology

At present, the embedded frame of the automobile weather strip is processed by continuous stamping. However, due to the narrow width of the embedded frame of the automobile weather strip, the size of the punched hole is small, and at the same time, a gap needs to be processed on both sides of the embedded frame of the automobile weather strip. Teeth, (1) The traditional stamping process is to directly punch off the material of the shape hole and the gap, which not only produces product waste, but also reduces the utilization rate of the material

(2) When the punch is slightly worn, it will cause a lot of burrs on the product, and even the situation that the material cannot be removed

(3) Dimensional deviation may occur during the feeding process of continuous stamping processing, resulting in reduced dimensional consistency; and it is impossible to feed during the stamping process, there is a certain time interval between stamping and feeding, and the processing speed is slow

(4) Since the current continuous stamping processing dies are mainly processed with cemented carbide materials, the material cost is high, but generally the processing of about 20 tons of strips requires replacement of punches, and the life of the punches is short, which leads to higher processing costs for continuous stamping

(5) Since the molds used in continuous stamping are easy to wear and tear, new punches need to be replaced after wear. At this time, the new punches need to be repositioned and adjusted, which not only reduces the processing efficiency, but also cannot guarantee the same batch of automotive sealing strips Dimensional Consistency of Embedded Skeleton

Using the existing technology to process the stamping die itself has high processing costs and short service life; and the stamping die has low efficiency in processing the embedded skeleton of the automobile sealing strip, low dimensional accuracy and too much geometric waste

Images