CN217798751U

CN217798751U - Blank making mold of shield cutter ring

Info

Publication number: CN217798751U
Application number: CN202221771006.5U
Authority: CN
Inventors: 何熙时; 韩军; 黄俏梅; 欧阳光; 李泉
Original assignee: Zhuzhou CRRC Timly Forge Co Ltd
Current assignee: Zhuzhou CRRC Timly Forge Co Ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-11-15
Anticipated expiration: 2032-07-07

Abstract

The utility model discloses a shield constructs base mould of cutter ring, mould, base lower mould, top punch and lower punch on the base, shown base go up the mould with the middle part forms the chamber that holds the blank during base lower mould butt, the top punch is connected with the upper punch jar, the top punch runs through mould back on the base with the geometric centre who holds the chamber aligns, the lower punch is connected with lower ejection jar, the lower punch runs through behind the base lower mould with the top punch aligns. The utility model discloses put into blank making with the blank bar and go up the mould and the chamber that holds between the blank making lower mould, then go out a through-hole at the blank bar through top punch and low punch, make the blank bar form the blank, promoted rim blank making efficiency, avoided the deviation that punches a hole that artifical centering leads to, promoted the precision of rim blank making, promoted the follow-up quality of grinding the ring.

Description

Blank making mold of shield cutter ring

Technical Field

The utility model relates to a forging apparatus technical field especially relates to a shield constructs base mould of cutter ring.

Background

The forging stock production of the shield cutter ring is characterized in that common materials comprise 42CrMo, 30CrNiMo8 and H13E, besides different materials, different types of cutter rings also have different cutting edge thicknesses, heights, inner diameters and outer diameters, but the shapes and the structures are basically consistent, wherein the forging stock drawing of the cutter rings is shown in figure 1.

The following problems exist in the current production of cutter ring forging stock as shown in fig. 1:

(1) The blank is made by adopting an air hammer or an electro-hydraulic hammer, dozens of times or even hundreds of times of striking are needed, the blank is required to rotate and turn over in the striking process, multiple persons are needed for matching, the production efficiency is low, the blank making and ring rolling process can be completed only by adding one to secondary heating in the middle due to the overlong blank making time, and the whole forging needs two to three fires.

(2) When a blank is forged by a hammer, a blind hole is punched in the middle of the blank by using a punch, then the blank is turned 180 degrees and punched through from the reverse side by using one punch, and in the two punching processes, the punch is placed in the middle of the blank by naked eyes, so that the upper hole and the lower hole are aligned easily and the holes are not in the center of the blank, and the inner hole of a product is folded when being rolled to form a ring, so that the product is discarded.

(3) The thickness difference between different blanks of the blank manufactured by hammer forging is large, and the same blank has difference at different positions of the circumference, so that the quality of the grinding ring is unstable.

(4) The blank manufacturing of the hammer forging equipment has great noise and vibration, the field ring piece is poor, and 4-5 persons are required for matching operation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a shield constructs base equipment of making of cutter ring for solve whole or partial technical problem among the above-mentioned background art.

In order to realize the above-mentioned purpose, the utility model provides a shield constructs base mould of cutter ring, mould, base lower mould, top punch and lower punch on the base, mould on the base with the middle part forms the chamber that holds the blank during base lower mould butt, the top punch is connected with the upper punch jar, the top punch runs through mould back on the base with the geometric centre who holds the chamber aligns, the lower punch is connected with lower ejection cylinder, the lower punch runs through behind the base lower mould with the top punch aligns.

Preferably, the blank making upper die comprises an upper die sleeve, an upper die core and an upper pressure plate, the upper die sleeve is installed on blank making equipment, the upper die core is installed in the upper die sleeve, the upper pressure plate is installed on the upper die sleeve and abutted to the edge of the upper die core, and the upper punch penetrates through the upper die sleeve and then penetrates through the center of the upper die core.

Preferably, the blank making lower die comprises a lower die sleeve, a lower die core and a lower pressing plate, the lower die sleeve is installed on the blank making equipment, the lower die core is installed in the lower die sleeve, and the lower pressing plate is installed on the lower die sleeve and abutted to the edge of the lower die core.

Preferably, the shape of the accommodating cavity is the same as that of the formed blank.

Preferably, the blank making upper die further comprises a guide pillar, the guide pillar is mounted on the upper die sleeve, and the blank making lower die is provided with a blind hole corresponding to the guide pillar.

Preferably, the temperature of the billet during the billet-making is 850 to 1170 ℃.

The utility model discloses following beneficial effect has: the utility model discloses a shield constructs base mould of cutter ring puts into blank bar and goes up the mould and the chamber that holds between the base lower mould on the base, then goes out a through-hole through top punch and lower punch at the blank bar, makes the blank bar form the blank, has promoted cutter ring base efficiency, has avoided the deviation that punches a hole that artifical centering leads to, has promoted the precision of cutter ring base, promotes the follow-up quality of grinding the ring.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a schematic illustration of a prior art cutter ring forging blank;

fig. 2 is a schematic structural view of the blank making mold of the present invention;

fig. 3 is a schematic view of the internal structure of the blank-making mold of the present invention;

fig. 4 is a schematic view of a blank made by the blank making mold of the present invention.

100. Blank making and upper die; 110. putting a die sleeve; 120. an upper mold core; 130. an upper pressure plate; 140. a guide post; 200. making a blank lower die; 210. a lower die sleeve; 220. a lower mold core; 230. pressing the plate downwards; 300. an upper punch; 400. a lower punch; 500. a blank; 600. and (5) forging the cutter ring blank.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 2 and 3, the blank making mold of the shield cutter ring according to the present embodiment includes an upper blank making mold 100, a lower blank making mold 200, an upper punch 300 and a lower punch 400, when the upper blank making mold 100 and the lower blank making mold 200 abut against each other, a holding cavity for holding a blank 500 is formed in the middle, the upper punch 300 is connected to the upper punch cylinder, the upper punch 300 penetrates through the upper blank making mold 100 and then aligns with the geometric center of the holding cavity, the lower punch 400 is connected to the lower ejection cylinder, and the lower punch 400 penetrates through the lower blank making mold 200 and then aligns with the upper punch 300.

In the blank making mold of the shield cutter ring of the embodiment, the blank making upper mold 100 includes an upper mold sleeve 110, an upper mold core 120 and an upper pressing plate 130, the upper mold sleeve 110 is mounted on the blank making equipment, the upper mold core 120 is mounted in the upper mold sleeve 110, the upper pressing plate 130 is mounted on the upper mold sleeve 110 and abuts against the edge of the upper mold core 120, and the upper punch 300 penetrates through the upper mold sleeve 110 and then penetrates through the center of the upper mold core 120.

In the blank making mold of the shield cutter ring of the embodiment, the blank making lower mold 200 comprises a lower mold sleeve 210, a lower mold core 220 and a lower pressing plate 230, the lower mold sleeve 210 is mounted on the blank making equipment, the lower mold core 220 is mounted in the lower mold sleeve 210, and the lower pressing plate 230 is mounted on the lower mold sleeve 210 and abuts against the edge of the lower mold core 220.

When the blank making upper die 100 and the blank making lower die 200 are abutted, the upper pressing plate 130 and the lower pressing plate 230 are abutted to form the edge of the accommodating cavity, the upper die core 120 and the lower die core 220 form the body of the accommodating cavity, the accommodating cavity is used for placing a blank bar, after the blank bar is punched by the upper punch 300 and the lower punch 400, the blank 500 shown in fig. 4 is obtained, and the shape of the accommodating cavity is the same as that of the formed blank 500.

In the blank-making mold of the shield cutter ring of the embodiment, the blank-making upper mold 100 further comprises a guide pillar 140, the guide pillar 140 is installed on the upper mold sleeve 110, a blind hole corresponding to the guide pillar 140 is formed in the blank-making lower mold 200, the guide pillar 140 can ensure that the blank-making upper mold 100 and the blank-making lower mold 200 are accurately aligned, and the punching positions of the upper punch 300 and the lower punch 400 are consistent.

In the blank-making mold of the shield cutter ring of the embodiment, the temperature of the blank 500 during blank making is 850-1170 ℃, and the temperature of 900 ℃ is specifically adopted in the embodiment.

The working process of the embodiment: placing a blank bar on the lower die core 220, limiting the position of the blank bar through a lower pressing plate, heating the blank bar to 900 ℃, upsetting the blank bar by the upper blank making die 100 and the lower blank making die 200 until the end faces of the upper blank making die 100 and the lower blank making die 200 are attached to each other, driving the upper punch 300 to extrude downwards, extruding the blank bar towards the outer circle until the outer circle is basically full, leaving a layer of connected skin between the upper punch 300 and the lower punch 400, retreating the upper punch 300 to be flush with the bottom surface of the upper die core 120, then extruding the lower punch 400 upwards, punching the middle connected skin to finish blank making to obtain a blank 500, and grinding the blank 500 to obtain the cutter ring forging blank 600 shown in fig. 1.

According to the blank making die of the shield cutter ring, the blank making process can be completed through one-time extrusion, the time is controlled within 1 minute, the temperature is still kept within the forging temperature, ring rolling can be continuously completed without secondary heating, the whole forging process only needs one-time heating, the production efficiency is improved by 2-3 times, and the energy consumption is reduced by 30-50%; the blind hole extrusion is carried out through the upper punch 300, the punching of the hole is completed through the lower punch 400, and the upper punch 300 and the lower punch 400 are assembled on the equipment and have good matching with other dies, so that the upper and lower holes can be ensured to be consistent with the center of the blank 500; the precision of the die and the equipment is completely guaranteed in the blank making process, manual intervention is not needed in the middle, and the precision and the stability of the blank making are greatly improved compared with those of a hammer forging blank; the whole blank manufacturing process can be completed by the equipment only by placing the blank in the lower die, the blank does not need to be rotated or turned in the middle, so that the multidirectional die forging equipment only needs to be operated by one person, the operator is started by one person to charge and discharge, the blank manufacturing process can be completed by two persons, the number of operators is reduced by 2-3 persons, and the equipment basically has no vibration and no noise.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a shield constructs base mould of cutter ring, its characterized in that, includes base mould (100), base lower mould (200), upper punch (300) and lower punch (400), base mould (100) with the middle part forms the chamber that holds blank (500) when base lower mould (200) butt, upper punch (300) and last punch cylinder are connected, upper punch (300) run through base mould (100) back with hold the geometric centre in chamber and align, lower punch (400) and lower liftout cylinder are connected, lower punch (400) run through base lower mould (200) back with upper punch (300) align.

2. The blank making mold of the shield cutter ring according to claim 1, wherein the blank making upper mold (100) comprises an upper mold sleeve (110), an upper mold core (120) and an upper pressing plate (130), the upper mold sleeve (110) is installed on a blank making device, the upper mold core (120) is installed in the upper mold sleeve (110), the upper pressing plate (130) is installed on the upper mold sleeve (110) and abuts against the edge of the upper mold core (120), and the upper punching head (300) penetrates through the upper mold sleeve (110) and then penetrates through the center of the upper mold core (120).

3. The blank making mold of the shield cutter ring according to claim 1, characterized in that the blank making lower mold (200) comprises a lower mold sleeve (210), a lower mold core (220) and a lower pressing plate (230), the lower mold sleeve (210) is installed on a blank making device, the lower mold core (220) is installed in the lower mold sleeve (210), and the lower pressing plate (230) is installed on the lower mold sleeve (210) and abuts against the edge of the lower mold core (220).

4. The blank making mold of the shield cutter ring according to claim 1, characterized in that the shape of the accommodating cavity is the same as that of the formed blank (500).

5. The blank making mold of the shield cutter ring according to claim 2, wherein the blank making upper mold (100) further comprises a guide post (140), the guide post (140) is mounted on the upper mold sleeve (110), and a blind hole corresponding to the guide post (140) is formed on the blank making lower mold (200).

6. The blank-making mold for shield cutter ring according to claim 1, characterized in that the blank (500) is made at a temperature of 850-1170 ℃.