CN104841825A - Vertical demoulding method of multidirectional die forging hydraulic press - Google Patents
Vertical demoulding method of multidirectional die forging hydraulic press Download PDFInfo
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- CN104841825A CN104841825A CN201410050816.5A CN201410050816A CN104841825A CN 104841825 A CN104841825 A CN 104841825A CN 201410050816 A CN201410050816 A CN 201410050816A CN 104841825 A CN104841825 A CN 104841825A
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Abstract
The invention relates to a vertical demoulding method of a multidirectional die forging hydraulic press. Protruding portions of a left mould sleeve and a right mould sleeve and the inner side wall of a mould locking ring cooperate with each other and are wedge-shaped. By adopting the vertical demoulding method, a demoulding face can be reliably closed during forging, a mould closing force dose not needed to be taken into account when the hydraulic press works, the energy consumption can be greatly reduced, and a mould can be conveniently opened after forging. A mould locking device is simple in structure, easy to implement and low in manufacturing cost.
Description
Technical field
The present invention relates to multiway forging technical field, particularly relate to a kind of vertical parting methods of multi-ram forging hydraulic press.
Background technology
Tradition manufactures the many employing castings of mode, welding, Die Forging Hammer, hydraulic press no-draft forging etc. of valve body, and these technology all have some limitations and defect.Such as: foundry goods mechanical performance is low; The product of Die Forging Hammer manufacture technics makes overall mechanical properties be under some influence because heart portion is not fully out of shape, and stock utilization is lower; Vertical hydraulic press forming technology can forge valve body inner bore, but can not be shaped for the triple-valve body with flange simultaneously, and efficiency is not high.Multi-ram forging can improve plasticity and the forging mechanical performance of metal; Complex contour, true-to-size hollow forging can be forged, thus stock utilization and production efficiency can be significantly improved.In recent years, multi-ram forging obtains and develops rapidly, and large-scale triple-valve body increases year by year in the demand of the industries such as nuclear power, oil, chemical industry.Multiway forging technique multi-ram forging die tool used has multiple die joint, and each die joint must be closed reliably when forging, otherwise there will be forge scrap, or even equipment and industrial accident.Large valve body is shaped required load greatly, and adopts the clamping system of common press, and mold clamping force is generally more than 2 times of work-piece load.In addition, the selection of mold clamping force is also most important, choose mold clamping force excessive time need to increase equipment tonnage, thus cause bad economic consequences; And when mold clamping force is less than required numerical value, die sinking phenomenon will be produced in die forging process, thus cause forging to produce overlap, affect forging forming and reduce forging quality.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of vertical parting methods of multi-ram forging hydraulic press, this mechanism can make die joint reliably closing in forging process.
The technical solution adopted in the present invention is:
The vertical parting methods of multi-ram forging hydraulic press, it comprises the steps:
(1) Level Promoting bar 10 is respectively to the left die sleeve of interior promotion 14 and right die sleeve 16, realizes left mould 13 and right mould 15 matched moulds, is inserted by blank in die cavity;
(2) up and down locked mode circle 12 is pushed to left die sleeve 14 and engages with the protuberance that right die sleeve 16 has respectively by the vertical catch bar 7 at two ends, left die sleeve 14 and right die sleeve 16 is fixed;
(3) vertical core pin 8 goes downwards to precalculated position, and then stop, the descending compacting of master cylinder pressure head 6 of multi-cored forging press, to setting stroke, is in packing state after completing;
(4) horizontal core pin 3 inwardly extruding simultaneously, completes left and right side position endoporus and is shaped;
(5) horizontal core pin 3 resets, and vertical core pin 8 resets, and locked mode circle 4 resets, master cylinder backhaul;
(6) left and right die sinking, takes out workpiece.
Preferably, described protuberance and described locked mode circle madial wall are the wedge type cooperatively interacted.
Preferably, utilize hydraulic cylinder to act on described vertical catch bar and promote locked mode circle.
Preferably, the vertical parting methods of above-mentioned multi-ram forging hydraulic press is applied to the multiway forging of triple-valve body structure.
Compared with prior art, the invention has the beneficial effects as follows: die joint reliably closing when forging can be realized by described parting methods, press need not consider mold clamping force at work, greatly reduce energy consumption, die sinking is facilitated after having forged, and described clamping apparatus structure is simple, be easy to realize, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of vertical parting of the present invention.
Detailed description of the invention
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Embodiment one: the vertical parting methods of multi-ram forging hydraulic press, it comprises the steps:
((1) Level Promoting bar 10, respectively to the left die sleeve of interior promotion 14 and right die sleeve 16, realizes left mould 13 and right mould 15 matched moulds, is inserted by blank in die cavity;
(2) up and down locked mode circle 12 is pushed to left die sleeve 14 and engages with the protuberance that right die sleeve 16 has respectively by the vertical catch bar 7 at two ends, left die sleeve 14 and right die sleeve 16 is fixed;
(3) vertical core pin 8 goes downwards to precalculated position, and then stop, the descending compacting of master cylinder pressure head 6 of multi-cored forging press, to setting stroke, is in packing state after completing;
(4) horizontal core pin 3 inwardly extruding simultaneously, completes left and right side position endoporus and is shaped;
(5) horizontal core pin 3 resets, and vertical core pin 8 resets, and locked mode circle 4 resets, master cylinder backhaul;
(6) left and right die sinking, takes out workpiece.
Embodiment two: the method for the present embodiment is substantially identical with embodiment one, difference is described protuberance and described locked mode circle 4 madial wall is the wedge type cooperatively interacted.
Embodiment three: the method for the present embodiment is substantially identical with embodiment one, difference utilizes hydraulic cylinder to act on described vertical catch bar 7 to promote locked mode circle.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technical staff in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by logic analysis, reasoning or the available technical scheme of limited test.
Claims (4)
1. a vertical parting methods for multi-ram forging hydraulic press, it comprises the steps:
(1) Level Promoting bar is respectively to the left die sleeve of interior promotion and right die sleeve, realizes left mould and right mould matched moulds, is inserted by blank in die cavity;
(2) up and down locked mode circle is pushed to left die sleeve and engages with the protuberance that right die sleeve has respectively by the vertical catch bar at two ends, left die sleeve and right die sleeve is fixed;
(3) vertical core pin goes downwards to precalculated position, and then stop, the descending compacting of master cylinder pressure head of multi-cored forging press, to setting stroke, is in packing state after completing;
(4) horizontal core pin inwardly extruding simultaneously, completes left and right side position endoporus and is shaped;
(5) horizontal core pin resets, and vertical core pin resets, and locked mode circle resets, master cylinder backhaul;
(6) left and right die sinking, takes out workpiece.
2. the vertical parting methods of multi-ram forging hydraulic press according to claim 1, is characterized in that: described protuberance and described locked mode circle madial wall are the wedge type cooperatively interacted.
3. the vertical parting methods of multi-ram forging hydraulic press according to claim 1 and 2, is characterized in that: utilize hydraulic cylinder to act on described vertical catch bar and promote locked mode circle.
4. a method for triple-valve body structure multiway forging, adopts the vertical parting methods of the multi-ram forging hydraulic press according to any one of claim 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050816.5A CN104841825A (en) | 2014-02-14 | 2014-02-14 | Vertical demoulding method of multidirectional die forging hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050816.5A CN104841825A (en) | 2014-02-14 | 2014-02-14 | Vertical demoulding method of multidirectional die forging hydraulic press |
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| CN104841825A true CN104841825A (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410050816.5A Pending CN104841825A (en) | 2014-02-14 | 2014-02-14 | Vertical demoulding method of multidirectional die forging hydraulic press |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382168A (en) * | 2015-12-01 | 2016-03-09 | 二十二冶集团精密锻造有限公司 | Multidirectional die-forging forming die and forming method of valve forge part with main flange |
| CN105750840A (en) * | 2016-04-21 | 2016-07-13 | 苏州市东盛锻造有限公司 | Method for forging tee-joint forge piece |
| WO2018045752A1 (en) * | 2016-09-10 | 2018-03-15 | 吉林大学 | Near net shape forging and moulding method for railway vehicle coupler knuckle |
| CN109764172A (en) * | 2018-12-31 | 2019-05-17 | 江苏隆盛钻采机械制造有限公司 | A kind of brake valve body and its forging technology |
-
2014
- 2014-02-14 CN CN201410050816.5A patent/CN104841825A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382168A (en) * | 2015-12-01 | 2016-03-09 | 二十二冶集团精密锻造有限公司 | Multidirectional die-forging forming die and forming method of valve forge part with main flange |
| CN105750840A (en) * | 2016-04-21 | 2016-07-13 | 苏州市东盛锻造有限公司 | Method for forging tee-joint forge piece |
| WO2018045752A1 (en) * | 2016-09-10 | 2018-03-15 | 吉林大学 | Near net shape forging and moulding method for railway vehicle coupler knuckle |
| CN109764172A (en) * | 2018-12-31 | 2019-05-17 | 江苏隆盛钻采机械制造有限公司 | A kind of brake valve body and its forging technology |
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Application publication date: 20150819 |
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| WD01 | Invention patent application deemed withdrawn after publication |