Pouring die for manufacturing vehicle brake disk

Abstract

The invention discloses a pouring die for manufacturing a vehicle brake disk. The pouring die comprises an upper die, a lower die, a motor and a fixed seat. The upper end of the upper die is providedwith a pouring gate. The middle portion of the lower end of the upper die is provided with a first groove. First exhaust holes are symmetrically formed in the positions, on the left and right sides ofthe upper end of the first groove, of the interior of the upper die. The lower die is arranged at the lower end of the upper die. The middle portion of the upper end of the lower die is provided witha second groove. Second exhaust holes are symmetrically formed in the positions, on the left and right sides of the upper end of the second groove, of the interior of the upper die. According to thepouring die, during pouring, the motor drives a rotary shaft to rotate so as to drive the upper die and the lower die to rotate. In this way, gas can be discharged out through the first exhaust holesand the second exhaust holes under the action of centrifugal force. Moreover, the first exhaust holes and the second exhaust holes can only be used for discharging gas instead of discharging pouring fluid, so that the appearance attractiveness and mechanical strength of the finished brake disk are improved, and then the rejection rate of the product is greatly reduced.

Description

technical field [0001] The invention relates to the field of casting technology, in particular to a casting mold for processing automobile brake discs. Background technique [0002] The brake disc is an important brake part widely used in motor vehicles, and has replaced the original "brake hub" at present. Brake discs, especially truck brake discs with larger diameters, require larger mold sand cores. At present, iron molds covered with sand or clay sand are generally used. The organic resin in the upper and lower box coatings and the casting mold sand core is melted (burned) and volatilized, which will inevitably produce a large amount of gas. If these gases cannot be discharged in time, they will remain in the casting and form pores and shrinkage cavities after cooling. It not only affects the appearance of the product, but more importantly, reduces the mechanical strength of the product, resulting in waste. Therefore, those skilled in the art provide a casting mold for...

AI Technical Summary

Problems solved by technology

Brake discs, especially truck brake discs with larger diameters, require larger mold sand cores. At present, iron molds covered with sand or clay sand are generally used. The organic resin in the upper and lower box coatings and the casting mold sand core is melted (burned) and volatilized, which will inevitably produce a large amount of gas. If these gases cannot be discharged in time, they will remain in the casting and form pores and shrinkage cavities after cooling. Not only affect the appearance of the product, but more importantly, reduce the mechanical strength of the product, resulting in waste

Images