Die structure capable of automatically centering and laterally stamping inner hole of casting

Abstract

The invention relates to a die structure capable of automatically centering and laterally stamping an inner hole of a casting, which comprises an oil cylinder and an oil cylinder joint; the end part of the oil cylinder is fixedly connected with an oil cylinder flange through a screw, and the end part of the oil cylinder flange is provided with an oil cylinder fixing seat; a rear-position sensor fixing seat and a front-position sensor fixing seat are fixed to one side wall of the upper end of the oil cylinder fixing seat; a rear-position sensor is arranged at the upper end of the rear-position sensor fixing seat; and a front-position sensor is installed at the upper end of the front-position sensor fixing seat. The die structure capable of automatically centering and laterally stamping the inner hole of the casting provided by the invention has the beneficial effects that through movement of a punch fixing block and a punching punch, the structure positions of the punching punch and a punching part at the front end of the punching punch can be adjusted, an arc-shaped notch is arranged at the middle of the upper end wall of a floating joint, a movable spring plunger is clamped into the arc-shaped notch arranged at the middle of the upper end wall of the floating joint, and freedom degree limiting operation is conducted on the floating joint.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to a mold structure capable of automatically centering the inner hole of a side stamping casting. Background technique [0002] Mold (mújù), various molds and tools used in industrial production for injection molding, blow molding, extrusion, die-casting or forging forming, smelting, stamping and other methods to obtain the required products. In short, a mold is a tool used to make shaped objects. This tool is composed of various parts, and different molds are composed of different parts. [0003] Most of the inner hole skins of the die-casting parts in the die-casting process are removed through the subsequent trimming and punching process. Because the draining system of the die-casting parts is affected by thermal expansion and contraction, the relative position of the die-casting parts will be deformed or Offset, the position of the inner hole of the die casting will deviate after...

AI Technical Summary

Problems solved by technology

[0003] Most of the inner hole skins of the die-casting parts in the die-casting process are removed through the subsequent trimming and punching process. Because the draining system of the die-casting parts is affected by thermal expansion and contraction, the relative position of the die-casting parts will be deformed or Offset, the position of the inner hole of the die casting will deviate after it is placed on the punching die. The side punch of the conventional punching die structure will cut the surface of the inner hole due to the deviation of the inner hole, but the inner hole of the die casting often has High-precision requirements, once cut by the punch will directly lead to product scrapping, so the yield of this process is low, and the proportion of rework and scrapping is high

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