CN214920174U

CN214920174U - Bidirectional sharp punch head structure of forging press

Info

Publication number: CN214920174U
Application number: CN202121216362.6U
Authority: CN
Inventors: 卫德开
Original assignee: Wafangdian Wanxiang Forging Co ltd
Current assignee: Wafangdian Wanxiang Forging Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-11-30
Anticipated expiration: 2031-06-02

Abstract

The utility model provides a two-way sharp drift structure of forging press, forging press top lower surface is connected with the upper fixed disk through hydraulic telescoping mechanism, the upper fixed disk lower part is fixed with the top punch, the top punch is the integrated configuration body of cylinder and toper round platform body, point portion is washed down, fixedly connected with annular child on the forging press lower part workstation, the forging press lower part is located the inside ejector pin that is connected through the hydro-cylinder of annular child, the ejector pin upper end top is on the ejector pin seat, ejector pin seat upper portion is the ejector pin guide holder, the ejector pin guide holder is the disc structure, it has the through-hole to open on the disc, the through-hole interpolation has little ejector pin, little ejector pin bottom top is pushed up on the top surface of ejector pin seat, little ejector pin top pushes up on the bottom surface of kicking plate, the center department of kicking plate installs the lower punch, lower punch structure is the same with the top punch, lower punch point portion is gone up and is on same vertical line with the top punch. The utility model discloses simple structure practices thrift metal blank, has alleviateed workman's intensity of labour, compares with traditional drift, practices thrift blank resource more than 50%.

Description

Bidirectional sharp punch head structure of forging press

Technical Field

The utility model belongs to the technical field of the forging press, in particular to two-way sharp drift structure of forging press.

Background

The forging press is a basic tool for forging press processing, and the forging press applies pressure to a metal blank to generate plastic deformation so as to obtain a forging with certain mechanical property and certain shape and size. The commonly used forging press punches are all of a cylindrical structure, the end parts of the punches are planes, when a forge piece is stamped, the material cores are punched by the punches, resource waste is caused, namely when the ring-shaped piece with the specified specification needs to be stamped, the volume of the metal blank is larger than that of the ring-shaped piece, the volume of the punched material cores needs to be calculated in the metal blank, and the labor intensity of workers is increased.

Disclosure of Invention

The utility model provides a technical problem provide a two-way sharp drift structure of forging press, solved the wasting of resources and the big problem of workman intensity of labour.

The utility model adopts the technical proposal that: a bidirectional sharp punch head structure of a forging press, the lower surface of the top of the forging press is connected with an upper fixed disc through a hydraulic telescopic mechanism, an upper punch is fixed at the lower part of the upper fixed disc, the upper punch is a combined structure body of a cylinder and a conical cone, the tip part is punched down, an annular tire is fixedly connected to a workbench at the lower part of the forging press, a mandril connected through an oil cylinder is arranged inside the annular tire at the lower part of the forging press, the upper end of the ejector rod is propped against the ejector rod seat, the upper part of the ejector rod seat is provided with an ejector rod guide seat, the ejector rod guide seat is of a disc structure, a through hole is arranged on the disc, a small mandril is inserted into the through hole, the bottom of the small mandril is propped against the top surface of the mandril base, the top of the small mandril is propped against the bottom surface of the punching plate, the center of the punching plate is provided with a lower punch, the structure of the lower punch is the same as that of the upper punch, and the tip of the lower punch is punched on the same vertical line with the upper punch.

Preferably, the number of the small ejector rods is 3, and the small ejector rods are uniformly distributed on the disc surface of the ejector rod guide seat to provide uniform pressure for the punching plate.

Preferably, the diameter of the smallest circular surface of the tip parts of the upper punch and the lower punch is not more than 5cm, so that the blank is conveniently punched.

The utility model has the advantages that: the utility model discloses simple structure practices thrift metal blank, has alleviateed workman's intensity of labour, compares with traditional drift, practices thrift blank resource more than 50%.

Drawings

FIG. 1 is a schematic view of a bi-directional pin punch configuration for a forging press;

FIG. 2 is a schematic cross-sectional view of a bi-directional pin punch of a forging press.

Reference numerals: 1-forging press 2-hydraulic telescoping mechanism 3-upper fixed disc 4-upper punch 5-annular tire 6-punching plate 7-lower punch 8-ejector rod guide seat 9-small ejector rod 10-ejector rod seat 11-ejector rod 12-blank

Detailed Description

The present invention will be further explained with reference to the accompanying drawings. The terms "upper", "lower", "top" and "bottom" used herein correspond to the vertical direction in the drawings.

As shown in fig. 1 and 2, a bidirectional sharp punch head structure of a forging press, wherein the lower surface of the top of the forging press 1 is connected with an upper fixing disc 3 through a hydraulic telescopic mechanism 2, the lower part of the upper fixing disc 3 is fixed with an upper punch head 4, the upper punch head 4 is a combined integral metal structure body of a cylinder and a conical frustum, and the tip part is punched down. The annular tire 5 is fixedly connected to a workbench at the lower part of the forging press 1, the lower part of the forging press is located inside the annular tire 5 and is provided with a mandril 11 connected through an oil cylinder, the upper end of the mandril 11 is propped against a mandril base 10, and the mandril base 10 moves up and down inside the forging press according to the up-and-down movement of the mandril 11. Ejector pin guide holder 8 is on ejector pin seat 10, and ejector pin guide holder 8 is the disc structure, and the even division in interval has three through-hole on the disc, and the through-hole interpolation has little ejector pin 9 for inject the direction of motion of little ejector pin 9, and little ejector pin 9 quantity is 3, inserts in the through-hole of 8 disc surfaces of ejector pin guide holder, provides even pressure for dash board 6. The bottom of the small mandril 9 is pressed against the top surface of the mandril base 10, the top of the small mandril 9 is pressed against the bottom surface of the punching plate 6, the lower punch 7 is arranged at the center of the punching plate 6, and the punching plate 6 and the lower punch 7 can move up and down along the vertical direction. The structure of the lower punch 7 is the same as that of the upper punch 4, and the lower punch 7 is installed oppositely, and the tip of the lower punch 7 punches on the same vertical line with the tip of the upper punch 4. The diameter of the minimum round surface of the tip parts of the upper punch 4 and the lower punch 7 is not more than 5cm, so that the blank 12 can be conveniently punched, and the core is reduced.

When the ring forming operation of rolling the blank is carried out, firstly, the blank 12 is placed in the annular tire 5, the upper punch 4 is driven by the hydraulic telescopic mechanism 2 at the upper part of the forging press 1 to move downwards, meanwhile, the ejector rod 11 at the lower part of the forging press 1 drives the ejector rod seat 10 to push the small ejector rod 9 to jack the punch plate 6 and the lower punch 7 to move upwards to jack the center of the blank 12, and the tip parts of the upper punch 4 and the lower punch 7 are easy to punch due to small contact area after being contacted with the blank 12. Until the tip parts of the upper punch 4 and the lower punch 7 are butted, the center of the blank 12 is gradually ejected outwards, after the ejection, the upper punch 4 and the lower punch 7 simultaneously move downwards, so that the cylindrical section of the upper punch 4 penetrates through the center of the blank 12 to continuously forge the blank 12, finally, the outer ring of the blank 12 is in contact shaping with the annular tire 5, and a circular through hole is formed in the center of the blank 12.

When the center of the blank 12 is stamped through the conical circular truncated cone parts of the upper punch 4 and the lower punch 7, the central hole of the blank 12 is gradually enlarged due to the structural characteristics of the punches of the bidirectional conical circular truncated cone, and the metal at the center of the blank 12 is gradually extruded to the outer ring, so that the material core is as small as possible or even not generated, the blank 12 is completely converted into a workpiece after being forged and pressed by the bidirectional pointed punch, and the use amount of the blank is saved. Creating greater value for enterprises in the actual production process.

The above is the utility model discloses a concrete embodiment and the technical principle who utilizes, any are based on the utility model discloses any modification, equivalent transformation on the technical scheme basis all should be contained within the protection scope.

Claims

1. The utility model provides a two-way sharp drift structure of forging press which characterized in that: the lower surface of the top of the forging machine (1) is connected with an upper fixed disc (3) through a hydraulic telescopic mechanism (2), the lower part of the upper fixed disc (3) is fixed with an upper punch (4), the upper punch (4) is a combined structure body of a cylinder and a conical circular truncated cone body, the tip of the upper punch is punched, an annular tire (5) is fixedly connected on a workbench at the lower part of the forging machine (1), the lower part of the forging machine (1) is positioned inside the annular tire (5) and is provided with a push rod (11) connected through an oil cylinder, the upper end of the push rod (11) is pushed against a push rod seat (10), the upper part of the push rod seat (10) is provided with a push rod guide seat (8), the push rod guide seat (8) is of a disc structure, a through hole is formed in the disc, a small push rod (9) is inserted into the through hole, the bottom of the small push rod (9) is pushed against the top surface of the push rod seat (10), the top of the small push rod (9) is pushed against the bottom surface of a punching plate (6), the center of the punching plate (6) is provided with a lower punch (7), the structure of the lower punch (7) is the same as that of the upper punch (4), and the tip of the lower punch (7) punches the upper punch and the upper punch (4) on the same vertical line.

2. The bi-directional tip structure of a forging press of claim 1, wherein: the number of the small push rods (9) is 3, and the small push rods are uniformly distributed on the disc surface of the push rod guide seat (8).

3. The bi-directional tip structure of a forging press of claim 1, wherein: the diameter of the minimum round surface of the tip parts of the upper punch (4) and the lower punch (7) is not more than 5 cm.