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Rotary forging die for piston rod of loading machine

A technology of piston rod and pendulum rolling die, applied in metal rolling and other directions, can solve the problems of poor working environment and high production cost, and achieve the effect of high production efficiency, less oxidation on the surface of the billet, and saving heating cost.

Inactive Publication Date: 2015-04-15
LIUZHOU GUOSHUN MECHANICAL MFR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a loader piston rod swing die, which can solve the problems of high production cost and poor working environment in the prior art

Method used

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  • Rotary forging die for piston rod of loading machine

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail: as figure 1 as shown,

[0014] A loader piston rod swing die, comprising a swing roll upper die 2 with a hemispherical inner cavity and a swing roll die 4 with a partially hemispherical inner cavity, the lower part of the swing roll upper die 2 is a cylindrical boss , the bottom of which is a conical surface, and the angle between the conical surface and the horizontal plane is 2°; the hemispherical inner cavity of the oscillating die 4 is provided with a circular hole 5 communicating with the lower part, and a oscillating roller is provided below the oscillating die 4 Clamping die 1, rotary rolling clamping die 1 is provided with a round through hole 6 communicating with the circular hole 5; the upper part of the rotary rolling die 4 is provided with a cylindrical groove, and the inner diameter of the groove is larger than the cylindrical shape of the rotary...

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Abstract

The invention discloses a rotary forging die for a piston rod of a loading machine, and relates to the technical field of machining. The rotary forging die comprises an upper rotary forging die with a semispherical inner cavity, and a rotary forging female die with a partial semispherical inner cavity, wherein a cylindrical boss is arranged on the lower portion of the upper rotary forging die, and a conical surface is arranged at the bottom of the upper rotary forging die; the partial semispherical inner cavity of the rotary forging female die is provided with a circular hole which is communicated with the lower portion of the rotary forging female die, and a rotary forging clamping die is arranged at the bottom of the rotary forging female die, and is provided with a circular through hole which is communicated with the circular hole. The rotary forging die can solve the problems that in the prior art, the production cost is high, and the working environment is poor.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a loader piston rod swing die. Background technique [0002] The working cylinder of the excavator is an important part of the engineering excavator. Under the alternating action of tensile stress and compressive stress, the piston rod of the cylinder will be subjected to a large impact load, and due to the heat generated by the close contact and friction with the packing, the piston rod will The temperature itself rises. Such working conditions require that the piston rod blank must be a forging with high machining accuracy and strong comprehensive mechanical properties. The hardness of the contact part with the filler is even higher at the working temperature; In the past, the forgings generally adopt the traditional die forging hammer forging process, the basic process is heating furnace heating, air hammer billet, die forging hammer forming and punch trimming; t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21H1/00
Inventor 陈国财
Owner LIUZHOU GUOSHUN MECHANICAL MFR
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