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Forging method for forming through holes of working clamping plates by hot extrusion

A technology of hot extrusion and working clamps, which is applied in the field of forging, can solve the problems of small impact and cutting force on the surface of the workpiece, low work efficiency, poor surface quality of the workpiece, etc., and achieve the goal of reducing forging difficulty, improving processing efficiency, and quick replacement Effect

Inactive Publication Date: 2012-07-11
四川新筑精坯锻造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sandblasting process after heat treatment has little impact and cutting force on the surface of the workpiece, resulting in low work efficiency and poor surface quality of the workpiece after treatment

Method used

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  • Forging method for forming through holes of working clamping plates by hot extrusion
  • Forging method for forming through holes of working clamping plates by hot extrusion
  • Forging method for forming through holes of working clamping plates by hot extrusion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0046] A method for forging a hot-extruded through-hole of a working clip includes the following steps:

[0047] (A) Blanking: using a sawing machine to cut the material, the size of the blank is φ25×33.5;

[0048] (B) Deburring: Use a grinder to deburr the blank in step (A), remove burrs, oil stains, rust spots and dirt on the blank, and separate the blanks according to different furnace numbers after the blanks are cleaned;

[0049] (C) Heating: put the clean billet in step (B) into an intermediate frequency heating furnace for heating, and the heating temperature is 1100±20°C;

[0050] (D) Pre-forging: Use a 100-ton punch press to complete the following steps within 5S:

[0051] (D1) Install the mold correctly, check whether the punch and die are aligned, and whether the closing height is correct. After the punch sleeve enters the die for 20mm, fine-tune according to the height of the product;

[0052] (D2) Turn on the circulating cooling water, and adjust the flow rate of ...

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Abstract

The invention discloses a forging method for forming through holes of working clamping plates by hot extrusion, which includes steps of blanking, deburring, heating, preforging, forming, reshaping, cooling, shot blasting and the like. A male die is matched and centered with a male die bush and then is inserted into a female die to complete piercing and reshaping of a workpiece, the combining height of the male die and the female die is fixed after being regulated so as to prevent the workpiece from being eccentric and guarantee that the reshaped part meets the processing requirements, the male die and the male die bush are separated to complete stripping after the male die drives the reshaped workpiece to raise to the set position, then the workpiece can be stripped, the dies can be cooled by an automatic cooling system, and parts of the dies can be changed quickly. Compared with the prior art, the process of machining the through holes of the working clamping plates of anchors by means of die forging has the advantage that use of raw materials is saved according to the relation between the volume of the through holes of the working clamping plates and the total volume of the working clamping plates, machining procedures are simplified and cost can be saved by 20% around.

Description

technical field [0001] The invention relates to a forging method, in particular to a forging method for hot extruding a through hole of a working clip. Background technique [0002] With the development of prestressed anchorage technology, the proportion of clip anchors in prestressed anchorage projects is increasing, and the amount is increasing sharply. The most important and largest amount of clip anchors is anchor clips. The anchor clip is used to clamp the prestressed tendon when anchoring the prestressed steel bar of the prestressed concrete member. It is widely used in various bridges, roads, high-rise buildings and other building constructions. At present, the traditional process of producing anchor clips by various prestressed manufacturers is to use round bar material, and then carry out turning end face, turning outer round hole, drilling, finishing turning inner hole, machining inner hole taper, tapping inner thread, turning outer taper , cutting, heat treatment...

Claims

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Application Information

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IPC IPC(8): B21J5/10B21J13/02B21J1/06
Inventor 黄基平冯克敏王涛张有朋李世宽廖茂董兴明王斌全赵继张宇树张凯
Owner 四川新筑精坯锻造有限公司
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