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punching machine

A punching machine and punching die technology, which is applied in the field of punching machines, can solve the problems of split punching machine structure and complex oil circuit, etc., and achieve the effects of reducing volume, reducing the probability of oil leakage, and being convenient to use

Active Publication Date: 2018-03-20
HANGZHOU OUDUN ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a punching machine in order to overcome the problems of the existing split type punching machine with complex structure and oil circuit.

Method used

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Embodiment Construction

[0020] Such as figure 1 As shown, the punching machine provided in this embodiment includes a housing 1 , a drive assembly 2 , an eccentric shaft 3 , an oil cylinder 4 , a hydraulic pump 5 , a push shaft 6 , an upper die 7 , a lower die 8 and an oil return assembly 9 . The driving assembly 2 is arranged in the casing 1 . The eccentric shaft 3 is connected to the drive assembly 2 . The oil cylinder 4 is arranged in the casing 1 . The hydraulic pump 5 includes a plurality of piston assemblies 51 arranged in the circumferential direction of the eccentric shaft 3, each piston assembly 51 has a plurality of oil holes communicating with the oil cylinder 4 (due to the problem of angle, the figure is not shown), the eccentric shaft 3 The rotation drives the multiple piston assemblies 51 to move in a direction perpendicular to the axis of the eccentric shaft, squeezing the oil in the oil cylinder 4 into the oil chamber 52 of the hydraulic pump 5 . The push shaft 6 is arranged in the...

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Abstract

The invention provides a punching machine which comprises a shell, a drive assembly, an eccentric shaft, an oil cylinder, a hydraulic pump, a push shaft, an upper punch die, a lower punch die and an oil return assembly. The drive assembly is arranged in the shell. The eccentric shaft is connected with the drive assembly. The oil cylinder is arranged in the shell. The hydraulic pump comprises multiple piston assemblies arranged in the circumferential direction of the eccentric shaft. Each piston assembly is provided with multiple oil holes communicating with the oil cylinder. The eccentric shaft rotates to drive the multiple piston assemblies to move in the direction perpendicular to the axis of the eccentric shaft, and oil in the oil cylinder is extruded into an oil cavity of the hydraulic pump. The push shaft is arranged in the shell and connected with the oil cavity of the hydraulic pump. After the oil enters the oil cavity, the push shaft moves in the direction where the lower punch die is located. The upper punch die is connected with the push shaft. The lower punch die and the upper punch die are oppositely arranged on the shell. The oil return assembly is connected with the push shaft, the oil cavity and the oil cylinder. After the push shaft moves to the limited position in the direction where the lower punch die is located, the oil return assembly is started, and the oil in the oil cavity flows back into the oil cylinder through the oil return assembly.

Description

technical field [0001] The invention relates to the technical field of mechanical punching, and in particular to a punching machine. Background technique [0002] Punching machine is a kind of equipment for punching steel, iron, copper, aluminum plate, formed steel, channel steel, I-beam and other materials, which is widely used in construction industry and field work. Existing punching machine mainly comprises pump body and working head, is separated between pump body and working head, needs to adopt longer oil delivery hose to connect between the two. This structure is not only complicated to connect, but also bulky, and it is very inconvenient for operators to use and carry. Further, since the pump body and the working head need to be connected by an oil hose, it is difficult to maintain the seal of the connection for a long time due to the influence of the environment. Usually, problems such as oil leakage will occur after a period of use, which brings great inconvenien...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D28/24
CPCB21D28/24
Inventor 王小鹏王俊
Owner HANGZHOU OUDUN ELECTROMECHANICAL
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