Molding die of jump spring for automobile electric appliances

Abstract

The invention discloses a circlip forming mold for automobile electrical appliances, which comprises an upper forming die and a lower forming punch oppositely arranged, the center of the lower surface of the upper forming die is provided with a triangular notch, and the lower forming convex The center position of the upper surface of the mold is provided with a triangular protrusion; the lower forming punch is installed on the base, the base is provided with an adjusting pressure bar, and the two sides of the lower forming punch are symmetrically provided with stripping top plates, so The adjusting pressure rod extends to the bottom end of one of the stripping top plates, and the bottom end of the other stripping top plate is connected with a circlip. The invention has reasonable structural design and convenient operation, not only realizes one-time molding production of the circlip, but also effectively improves the processing accuracy and work efficiency of the circlip, significantly reduces production cost, and is suitable for large-scale mass production.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing, in particular to a circlip forming die for automobile electrical appliances. Background technique [0002] Mold is an important technological foundation of the manufacturing industry. In my country, mold manufacturing belongs to the special equipment manufacturing industry. Although China began to manufacture molds and use molds very early, it has not formed an industry for a long time. Although China's mold industry is developing rapidly, compared with the demand, the supply is obviously in short supply, and its main gap is concentrated in the field of precision, large, complex and long-life molds. [0003] The circlip is one of the important parts used to connect the milling tooth and the milling machine drum. During use, the circlip is set outside the milling tooth shank and fixed on the milling machine drum. The clamping teeth of the milling teeth are connected with the bar...

AI Technical Summary

Problems solved by technology

Although China's mold industry is developing rapidly, compared with the demand, the supply is obviously in short supply, and its main gap is concentrated in the field of precision, large, complex and long-life molds

[0003] The circlip is one of the important parts used to connect the milling tooth and the milling machine drum. During use, the circlip is set outside the milling tooth shank and fixed on the milling machine drum. The clamping teeth of the milling teeth are connected with the barbs of the grooves of the milling teeth to prevent the milling teeth from detaching from the milling gear drum; in order to ensure the service life of the milling teeth, the milling teeth need to rotate along the axial direction of the retaining spring, which can effectively prevent the milling teeth from One side of the tooth wears too fast, prolonging the service life of the milling tooth; and in order to ensure the axial rotation of the milling tooth during use, this requires a higher size and precision of the circlip, such as the inner diameter of the circlip and the milling tooth If the gap between the outer diameters of the tooth shanks is too large, the milling teeth will shake, which will cause the milling teeth to break; if the gap is too small, the milling teeth will not be able to rotate, which will affect the service life of the milling teeth

[0004] When the existing circlip is produced, the steel strip is first punched into a steel sheet by a punch press according to the shape of the circlip; in the second step, the punch is used to punch out the latching teeth connected with the hooks of the milling tooth slots on the steel sheet; The third step is to bend the two sides of the steel sheet into an arc shape through the punching machine; the fourth step is to bend the center of the steel sheet on the punching machine to form the circlip blank; the fifth step is to put the curved circlip blank at both ends and the center into the shape On the rod, put it into the punching machine and rotate the shaping rod while stamping to form a full circle of the circlip blank; when the forming process is completed, use the instrument lathe to insert the circlip into one end of the milling machine drum for chamfering, so that The circlip is fixedly connected with the fastening hole of the milling machine drum; the production of the circlip in this way is not only complicated in process and low in production efficiency, but also needs to invest in multiple punches, molds and multiple people to operate at the same time, resulting in excessive production costs. High, and all manual operations, the precision is not easy to control, and cannot meet the needs of the use of the circlip

Images