Precision quick change device for stamping die

Abstract

The invention discloses a precision quick change device for a stamping die, which comprises a die handle and a fixed plate, wherein an upper padding plate is arranged between the die handle and the fixed plate, a male die fixing seat connection hole is formed on the fixed plate, a male die fixing seat is connected inside the male die fixing seat connection hole, an axial connection hole is formedon the male die fixing seat, the axial connection hole is connected with a male die component, a rotary male die press plate is connected to the lower end of the male die component, a screw nut is connected to the male die press plate, and the screw nut is in a threaded connection with the male die fixing seat. The precision quick change device for the stamping die has a high positioning accuracy, is convenient to operate, and has a long service life and a wide application range.

Description

technical field [0001] The invention belongs to a stamping device, in particular to a precision quick change device for a stamping die. Background technique [0002] In the manufacturing industry of steel furniture, electric cabinets, anti-theft doors and other products, ordinary punching machines are usually used to perform various stamping processes such as edge trimming and punching on large-area thin steel plates, and guide devices cannot be designed on the mold; actual production In order to reduce the equipment occupation, the mold needs to be replaced frequently. If the traditional mold structure scheme is adopted, the mold gap must be manually adjusted every time the mold is replaced. However, the blanking gap of the thin plate is relatively small, which increases the difficulty of manually adjusting the mold gap. It not only reduces the working efficiency, but also if the operation is not done properly, it will easily lead to uneven mold gap, and even the edge of th...

AI Technical Summary

Problems solved by technology

[0002] In the manufacturing industry of steel furniture, electric cabinets, anti-theft doors and other products, ordinary punching machines are usually used to perform various stamping processes such as edge trimming and punching on large-area thin steel plates, and guide devices cannot be designed on the mold; actual production In order to reduce the equipment occupation, the mold needs to be replaced frequently. If the traditional mold structure scheme is adopted, the mold gap must be manually adjusted every time the mold is replaced. However, the blanking gap of the thin plate is relatively small, which increases the difficulty of manually adjusting the mold gap. It not only reduces the working efficiency, but also if the operation is not done properly, it is easy to cause uneven mold gap, and even the cutting edge of the upper mold will cut the cutting edge of the lower mold, which will damage the mold or injure the operator. Therefore, it is necessary to design a quick replacement device for the convex and concave molds.

However, the published information mostly involves quick change devices for stamping die punches: ZL03226480.1 "Round Punch Quick Change Devices for Stamping Dies" states that the radial fit between the round punch and the punch fixing plate is a sliding fit, such as If the gap is too large, the verticality of the punch will not be high after being fixed. If the fit gap is too small, it will be difficult to remove the punch with tools or hands, and the quick change effect will not be achieved. Limitation; the punch sleeve described in the patent "A Quick-change Punch Device" (Application No. 200920288376.1) is a punch with a spigot, and the punch sleeve is fixed on the upper fixing plate with threads. Although the connection method can achieve the purpose of quick change, it is difficult to ensure the verticality of the punch after it is fixed. In addition, the shock and vibration during the stamping process will cause the threaded connection to loosen, which will directly affect the fixing accuracy of the punch; moreover, the two devices Only involves quick change of round punches, not suitable for quick change of punches with non-circular cutting edges

ZL93218271.2 "Punch Die Quick Installation and Quick Change Device" mentioned that the upper fastening component part and the pressure spring are quick change units, and the quick change effect of the punch parts is not obvious

In addition, most of the existing quick-change devices for the die adopt the method of designing the die as an insert, putting it into an integral fixed plate, and locking it with screws on the side. Either the die is difficult to take out, or the die is positioned Insufficient precision

If the positioning accuracy of the convex and concave molds is not high, it is necessary to re-adjust the mold gap after each replacement of the convex and concave molds, which reduces work efficiency and cannot fully reflect the advantages of quick change of convex and concave molds

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