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Process Method for Closed Die Forging of Middle Input Shaft of Loader

A closed die forging and process method technology, applied in the field of machining, can solve the problems of high mold manufacturing cost, poor working environment, poor precision, etc., and achieve the effects of high production efficiency, good surface quality, and long mold life.

Inactive Publication Date: 2016-11-02
LIUZHOU GUOSHUN MECHANICAL MFR +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a process method for closed die forging of the intermediate input shaft of a loader, which can solve the problems of poor precision, high mold manufacturing cost and poor working environment in the prior art

Method used

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  • Process Method for Closed Die Forging of Middle Input Shaft of Loader
  • Process Method for Closed Die Forging of Middle Input Shaft of Loader

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail: as Figure 1~Figure 2 as shown,

[0020] A process method for closed die forging of an intermediate input shaft of a loader, comprising the following steps:

[0021] A. Cutting: Use a band saw to saw the round steel into a round bar of the size required by the process;

[0022] B. Heating: Put the round bar sawed in step A into the intermediate frequency furnace for heating, and the heating temperature is controlled at 1150°C±50°C;

[0023] C. Billet making: Put the heated round bar into the pre-upsetting machine for pre-upsetting. The pre-upsetting adopts the pre-upsetting die, and the final forging temperature is controlled at 1050 ° C ± 50 ° C;

[0024] D. Forming: Move the billet prepared in step C to a rotary rolling machine for rotary rolling, and the forming mold is a rotary rolling die, and the final forging temperature is controlled at 900°C~950°C;...

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Abstract

The invention discloses a technological method for closed die forging of an intermediate input shaft of a loading machine, and relates to the technical field of machining. The technological method comprises the following steps that a bar material is fed according to the size required by the technology, the bar material is heated to enable the temperature to be 1050DEG C, a blank is made through a pre-upsetting die of an upsetting hydraulic press, the blank which is processed through upsetting is moved to a rotary forging machine to be processed through rotary forging forming, and a forged piece which is processed through rotary forging forming is placed into a circulation box to be cooled. The technological method can solve the problems that in the prior art, accuracy of intermediate input shaft forged pieces of loading machines is poor, the die manufacturing 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 closed-die forging process for elongated disc-like parts. Background technique [0002] The intermediate input shaft of the loader is a disc-like slender piece. The forgings used to adopt the traditional die forging hammer forging process. The basic processes are heating furnace heating, air hammer upsetting, die forging hammer forming and punch trimming; The forging process has the following problems: 1. The operating environment is harsh and the production noise is large; 2. The equipment vibrates heavily against the ground, and the equipment foundation is complicated; 3. The product precision is poor. Due to the poor guidance precision of the die forging hammer, the parting line of the product is misaligned 4. The cost of mold manufacturing is high. Due to the great impact of the forming process, the mold must be designed to be very large to increase the bearin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21K1/06B21J5/02B21J5/08B21J13/02
CPCB21H1/02B21J5/025B21J5/08B21J13/02B21K1/12
Inventor 陈国财
Owner LIUZHOU GUOSHUN MECHANICAL MFR
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