CN-121972601-A - Forging die for producing marine reducing flange

CN121972601ACN 121972601 ACN121972601 ACN 121972601ACN-121972601-A

Abstract

The invention relates to the technical field of forging dies, in particular to a forging die for producing a reducing flange for a ship, which comprises a fixed plate, wherein a pushing mechanism is arranged at the lower end of the fixed plate, the pushing mechanism comprises a first punch, an extrusion mechanism is arranged at the upper end of the first punch, the extrusion mechanism comprises a die, one end of the die is provided with a correcting mechanism, the correcting mechanism comprises an arc-shaped plate, one end of the arc-shaped plate is provided with a cleaning mechanism, the cleaning mechanism comprises an air inlet pipe, when the pushing mechanism drives a workpiece to move, the correcting mechanism uses a special guide groove to enable the arc-shaped block to center and correct and protect the workpiece, so that scraps are prevented from splashing, the extrusion mechanism extrudes in stages and can automatically limit, and after the cleaning mechanism is completed, a hydraulic cylinder is used for driving a sliding block to move, so that high-pressure gas is ejected out from small holes of the arc-shaped plate, scraps are cleaned, the punch is cooled, the service life of the die is prolonged, stamping precision is improved, and an automatic process is improved.

Inventors

LIU YANFEN
Zhai Zunheng
YIN PEISONG
LI HUI
WU XUANYU
WU YINGXIANG
LIU TONGXI
FU XIUFENG
MENG LING
CUI XUEYONG
SUN JIANHAO
LI SHUJUAN

Assignees

河北凯瑞装备股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260325

Claims (8)

1. The forging die for producing the marine reducing flange comprises a fixed plate (100) and is characterized in that a pushing mechanism (200) for pushing a workpiece to be forged is arranged at the lower end of the fixed plate (100), and the pushing mechanism (200) comprises a first punch head (202); An extrusion mechanism (300) for extrusion forming of a workpiece is arranged at the upper end of the first punch (202), and the extrusion mechanism (300) comprises a die (305); One end of the die (305) is provided with a correcting mechanism (400) for centering the position of the workpiece on the first punch (202), and the correcting mechanism (400) comprises an arc-shaped plate (401); one end of the arc plate (401) is provided with a cleaning mechanism (500) for cleaning scraps generated in the forging process of the workpiece, and the cleaning mechanism (500) comprises an air inlet pipe (503).
2. The forging die for producing the reducing flange for the ship according to claim 1, wherein the lower end of the fixing plate (100) is fixedly connected with a base (101), and the upper end of the fixing plate (100) is fixedly connected with a top plate (102).
3. The forging die for producing the reducing flange for the ship according to claim 1, wherein the pushing mechanism (200) comprises a hydraulic cylinder (201), the lower end of a non-output end of the hydraulic cylinder (201) is fixedly connected with the base (101), the upper end of the hydraulic cylinder (201) is fixedly connected with the first punch (202), and a supporting plate (203) is slidably connected to the surface of the first punch (202).
4. The forging die for producing the marine reducing flange according to claim 3, wherein the extrusion mechanism (300) comprises a fixed block (301), the upper end of the fixed block (301) is fixedly connected with the top plate (102), the lower end of the fixed block (301) is fixedly connected with a spring (302), and the lower end of the spring (302) is fixedly connected with a movable block (303).
5. The forging die for producing the marine reducing flange according to claim 4, wherein the extrusion mechanism (300) further comprises a second punch (304), the second punch (304) is fixedly connected to the lower end of the movable block (303), the second punch (304) is slidably connected with the die (305), and the outer surface of the die (305) is fixedly connected with the fixing plate (100).
6. The forging die for producing the marine reducing flange according to claim 5, wherein the upper end of the arc plate (401) is fixedly connected with the fixing plate (100), the inner surface of the arc plate (401) is fixedly connected with the supporting plate (203), a first sleeve (402) is fixedly connected with the inner part of the arc plate (401), a sliding plate (403) is slidingly connected with the inner part of the first sleeve (402), a guide groove (404) is formed in the sliding plate (403), a rotating pin (405) is slidingly connected with the inner part of the guide groove (404), one end of the rotating pin (405) is rotationally connected with the connecting block (406), one end of the connecting block (406) is fixedly connected with the output end of the hydraulic cylinder (201), and one end of the sliding plate (403) is fixedly connected with the arc block (407).
7. The forging die for producing the marine reducing flange according to claim 6, wherein the cleaning mechanism (500) comprises a sliding block (501), one end of the sliding block (501) is fixedly connected with the surface of the output end of the hydraulic cylinder (201), and a second sleeve (502) is sleeved outside the sliding block (501).
8. The forging die for producing the marine reducing flange according to claim 7, wherein the cleaning mechanism (500) further comprises an air inlet pipe (503), one end of the second sleeve (502) is fixedly connected with the air inlet pipe (503), and one end of the air inlet pipe (503) is fixedly connected with the arc plate (401).

Description

Forging die for producing marine reducing flange Technical Field The invention relates to the technical field of forging dies, in particular to a forging die for producing a reducing flange for a ship. Background The marine reducing flange forging device is special equipment for manufacturing the marine reducing flange, and the reducing flange is a special connecting piece for connecting pipelines with different diameters, and is characterized in that the reducing flange is of a reducing structure with one end having a large aperture and one end having a small aperture, and effective connection under nonstandard working conditions is realized through bolt fastening and sealing gaskets. In the industrial fields such as ship manufacturing, marine reducing flange is used as key connecting piece, its forging quality directly influences reliability and the security of boats and ships pipe line system, in forging process, the work piece surface can produce the oxide skin piece, the oxide skin piece is impressed on forging surface when forging, can form pock, recess or orange peel defect, lead to surface roughness to increase, this kind of defect is especially fatal in accurate forging, probably directly lead to the product to scrap, oxide skin piece hardness is high, the friction can aggravate die chamber wearing and tearing in the mould die cavity repeatedly, lead to the mould surface to appear the scratch, crackle even peel off, these piece can not only reduce forging quality, still can splash in the extrusion process, cause the potential safety hazard to operating personnel, adhere to work piece and equipment surface simultaneously, influence forging quality and equipment normal operating, after the forging is accomplished, equipment surface can remain a large amount of piece impurity, remaining piece still can influence equipment heat dissipation, accelerate the mould wearing and tearing, shorten mould life, in addition, unclean equipment surface can influence follow-up punching precision, further increase the defective rate. Disclosure of Invention Aiming at the problems in the prior art, the invention provides a forging die for producing a reducing flange for a ship. The technical scheme includes that the forging die for producing the marine reducing flange comprises a fixed plate, wherein a pushing mechanism for pushing a workpiece to be forged is arranged at the lower end of the fixed plate, and the pushing mechanism comprises a first punch; an extrusion mechanism for extrusion forming of the workpiece is arranged at the upper end of the first punch head, and the extrusion mechanism comprises a die; one end of the die is provided with a correcting mechanism for centering the position of the workpiece on the first punch, and the correcting mechanism comprises an arc-shaped plate; One end of the arc-shaped plate is provided with a cleaning mechanism for cleaning scraps generated in the forging process of the workpiece, and the cleaning mechanism comprises an air inlet pipe. Preferably, the lower extreme fixedly connected with base of fixed plate, the upper end fixedly connected with roof of fixed plate. Preferably, the pushing mechanism comprises a hydraulic cylinder, the lower end of the non-output end of the hydraulic cylinder is fixedly connected with the base, the upper end of the hydraulic cylinder is fixedly connected with the first punch, and the surface of the first punch is slidably connected with a supporting plate. Preferably, the extrusion mechanism comprises a fixed block, the upper end of the fixed block is fixedly connected with the top plate, the lower end of the fixed block is fixedly connected with a spring, and the lower end of the spring is fixedly connected with a movable block. Preferably, the extrusion mechanism further comprises a second punch, the lower end of the movable block is fixedly connected with the second punch, the second punch is in sliding connection with the die, and the outer surface of the die is fixedly connected with the fixing plate. Preferably, the upper end of arc with fixed plate fixed connection, the internal surface of arc with backup pad fixed connection, the inside fixedly connected with first sleeve of arc, the inside sliding connection of first sleeve has the sliding plate, the guide way has been seted up to the inside of sliding plate, the inside sliding connection of guide way has the rotation round pin, the one end of rotation round pin with the connecting block rotates to be connected, the one end of connecting block with the output fixed connection of pneumatic cylinder, the one end fixedly connected with arc piece of sliding plate. Preferably, the cleaning mechanism comprises a sliding block, one end of the sliding block is fixedly connected with the surface of the output end of the hydraulic cylinder, and a second sleeve is sleeved outside the sliding block. Preferably, the cleaning mechanism further comprises an air inlet pipe, one end of the secon