Automobile drive rear axle brake bracket floating cantilever type punching die and punching process

• Main Authors: LIU DELIN, QIU GENGLONG
• Format: Patent
• Language: Chinese; English
• Published: 22.01.2019
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

The invention relates to an automobile drive rear axle brake bracket floating cantilever type punching die and a process for simultaneously punching the upper portion and the lower portion of a brakebracket. The die comprises an upper die structure and a lower die structure, the upper die structure comprises a die shank, an upper die plate, an upper base plate, an upper discharge spring, an uppermale die fixing plate, an upper hole punching male die, a side baffle plate, a discharge plate and a discharge sleeve, the lower die structure comprises an elastic retaining ring, an upper hole punching female die, an upper limit sleeve, a guide sleeve, a lower hole punching female die, a female die fixing plate, a guide post, lower discharge rubber, a lower limit sleeve, a lower hole punching male die, a return spring, a lower male die fixing plate, a lower base plate and a lower die plate, the upper hole punching male die is mounted in a male die fixing hole of the upper male die fixing plate by interference fit, an