CN202963348U - Sidewise male die structure of multi-directional die forging die - Google Patents
Sidewise male die structure of multi-directional die forging die Download PDFInfo
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- CN202963348U CN202963348U CN 201220639347 CN201220639347U CN202963348U CN 202963348 U CN202963348 U CN 202963348U CN 201220639347 CN201220639347 CN 201220639347 CN 201220639347 U CN201220639347 U CN 201220639347U CN 202963348 U CN202963348 U CN 202963348U
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- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
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- 238000004519 manufacturing process Methods 0.000 abstract description 15
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- 238000001192 hot extrusion Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a sidewise male die structure of a multi-directional die forging die. The sidewise male die structure is characterized in that a sidewise male die comprises a small male die at the front end and a die base substrate at the back end, the front end of the small male die is used for contacting with a part and enabling the shape of the foot of the part to be formed in an extrusion forming mode, the back end of the die base substrate is used for being fixed on a die base or power equipment, and a contact position of the back end of the small male die and the front end of the die base substrate is in plane butt joint or in concave-convex coupling butt joint capable of preventing rotation. The sidewise male die structure has the advantages of being capable of prolonging service life of the multi-directional die forging die, improving forming precision quality, reducing production cost, and improving production efficiency and the like.
Description
Technical field
The utility model relates to the coredforging mould field in metal plastic forming, especially relates to a kind of side direction punch structure of coredforging mould.
Background technology
Multi-ram forging be a kind of utilization can divide mould forge under the effect of one stroke of press complex-shaped, without burr, squeeze, forge without draft angle or little draft angle forging the composite technology that combines.Common coredforging mould, its structure generally comprises patrix, and counterdie and side direction punch form part die cavity after three's matched moulds.
Because the multi-ram forging part forming is to carry out in having the near closed hollow ring of a plurality of die joints, so multi-ram forging is that a kind of Product Precision is high, and the high and high die forging new technology of production efficiency of stock utilization in recent years, more and more becomes the focus of research.For example Ji Dong gives birth to philosophy joint body multi-ram forging technique has been carried out sunykatuib analysis and experimental study (Central China University of Science and Technology's journal (natural science and technology version), 2009,37(6)).Cycles etc. have carried out technical study (Master's thesis, Northcentral University 2008) to the multi-ram forging extrusion modling of joint body.The technique of the docking body multi-ram forging extrusion moldings such as Xue Kemin has been carried out numerical simulation study (Arms Material scientific and engineering, 2009,32(3)).Zhou Zhiming etc. are studied (patent No. ZL 201010566154.9) to multi-ram forging technique and the mould of 40Cr steel body seat class part.
Although the research of above multi-ram forging and technique have obtained many achievements, yet because the multi-ram forging extrusion modling time is long, the part heating-up temperature is high, often can reach about 1100 ° of C, part and punch are long time of contact, generally can reach the 20S left and right, and it are large to bear pressure, punch is elevated to rapidly 600-800 ° of C in tens later temperature of work, and the mechanical properties such as the intensity of punch and hardness sharply descend.Because the side direction punch generally is used for molding the local shape of part, therefore the side direction punch generally is comparatively elongated planform.Like this, under the effect of extruding force, be easy to wearing and tearing or distortion, form large fillet and fold, the part overlap is excessive, forms fold, and is of poor quality; In the side direction punch life-span extremely low (general tens), production cost is high, and efficient is low, can not form mass production capabilities.Therefore design and a kind ofly can make that the heat radiation of side direction punch is good, wear-resistant, repair and replacement mould and production operation method easily, to reduce the side direction plug temperature, reduce distortion, to improve the mold use life-span, to reduce production costs, to reach mass production capabilities, become the technical problem that those skilled in the art are badly in need of solving.
The utility model content
For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is: how to provide a kind of and can extend the coredforging mould life-span, improve the forming accuracy quality, the side direction punch structure of a kind of coredforging mould that reduces production costs, enhances productivity.
In order to solve the problems of the technologies described above, adopted following technical scheme in the utility model:
A kind of side direction punch structure of coredforging mould, it is characterized in that, described side direction punch comprises the small punch that is positioned at front end and is positioned at the die holder matrix of rear end, described small punch front end is used for contacting with part and extrusion modling goes out part foot shape, described die holder matrix rear end is used for being fixed on die holder or power-equipment, and described small punch rear end and die holder matrix front end contact position are that the plane is docked or adopted and can prevent the concavo-convex butt coupling that rotates.
In such scheme, when small punch rear end and die holder matrix front end contact position be the plane dock structure the time, can make its manufacturing very convenient.When both adopt the version of concavo-convex butt coupling, can prevent that small punch from use rotating, guarantee that its die forging precision is higher.The utility model is simple in structure, and it is convenient to implement, and the small punch that arranges separately is to hold flimsy position most in the side direction punch, therefore can change separately or keep in repair after damaging, reduces costs, and also can lower the temperature separately to small punch when work, and is life-extending.
As optimization, described small punch length is 20-50cm, and optimization length is 40cm, and this size possesses enough intensity, hardness and holds heat energy power in the time of can guaranteeing small punch self work.
In coredforging mould, after adopting side direction punch of the present utility model, during die forging, the one-off pattern forger is done to take out small punch after circulation, with small punch cooling or be replaced by prepare in advance other standby identical shaped small punches after, install again and carry out next die forging operation cycle, guarantee that the small punch temperature of die forging use is lower than 200 ℃.Wherein, the one-off pattern forger is done circulation and is referred to process the course of work that obtains a part.Like this; after an operation cycle, small punch can take out easily and install; can carry out cooling or replacing fast after taking-up; reinstalling rear temperature reduces; the small punch temperature is lower than 200 ℃; self can Yin Gaowen and wear and tear, also play heat transmission and effect between isolation workpiece and punch pedestal simultaneously, can effectively reduce the wearing and tearing of punch.Small punch has been isolated the heat transmission between workpiece and solid punch, and solid punch can the temperature remains within the normal range, can not wear and tear and be out of shape in work.
In sum, the utility model can reduce the cost of manufacture of the temperature in punch work, the wearing and tearing that guarantee punch hardness, minimizing punch, the life-span of improving punch, reduction punch, improves product percent of pass, enhances productivity, reduces production costs.Use through actual production, the small punch temperature can be stabilized in about 200 ° of C, hardness does not reduce, originally the punch life-span is 150-200, and small punch just can reach 1000 now, and the part overlap is by being reduced to 5mm about 20mm, fillet will be R2 by R5, thoroughly eliminate part end face folding, greatly reduced production cost, realized the accurate hot extrusion batch production of multi-ram forging of special steel part.
Description of drawings
Fig. 1 is a kind of structural representation that adopts coredforging mould of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
during concrete enforcement, referring to Fig. 1, a kind of coredforging mould that adopts the utility model structure, comprise patrix 1, counterdie 2 and side direction punch (the side direction punch is the utility model structure), wherein, described side direction punch comprises the small punch 3 that is positioned at front end and the die holder matrix 4 that is positioned at the rear end, described small punch 3 front ends are used for contacting with part 5 and extrusion modling goes out part foot shape, described die holder matrix 4 rear ends are used for being fixed on die holder or power-equipment 6, described small punch 3 rear ends and die holder matrix 4 front end contact positions are that the plane is docked or adopted and can prevent the concavo-convex butt coupling that rotates.Described small punch 3 length are 20-50cm.
When above-mentioned mould is specifically implemented, it is raw material that small punch adopts H13, heat treatment hardness 45-50HRC, contact an end drift size makes by the part requirement with part, contact an end with solid punch and be the plane or prevent that small punch from rotating and be made into the anti-rotation step, and guarantee to bear the required extruding force of forming parts.Each cross dimensions of small punch is consistent, and convenient line cutting or the bar of adopting directly processed, and can move forward and backward smoothly in die and take out.Solid punch (being die holder matrix 4) employing 5CrMnMo is raw material, heat treatment hardness 45-50HRC, adopt the plane be connected or be of coupled connections with the small punch link, and facilitate small punch taking-up and stressed even, the other end takes step to be connected with die holder or power-equipment.Be that the side direction punch is made as two sections, small punch guarantees part shape and can take out smoothly, die holder matrix assurance transmission extruding force.
Above-mentioned coredforging mould in use, the one-off pattern forger is done to take out small punch after circulation, with small punch cooling or be replaced by prepare in advance other standby identical shaped small punches after, then install and carry out next die forging operation cycle, guarantee that small punch temperature that die forging uses is lower than 200 ℃.
When die forging, workpiece (950-1180 ° of C) under the state of heat is easy to transfer heat to small punch, and the small punch temperature raises, but when taking out part, small punch is taken out in the lump, small punch is soaked to be reused after cooling, guarantees that the small punch temperature is at 200 ° of C and following.Certainly can make a plurality of small punches recycles.Like this, small punch has been isolated the heat transmission between workpiece and solid punch, and the temperature remains within the normal range for the punch physical efficiency, can not wear and tear and be out of shape in work.
Specifically, the utility model has following advantage: 1) small punch has been isolated the heat transmission of part and die holder matrix, and the die holder substrate temperature is lower, does not reach annealing temperature, can well guarantee hardness, bears extruding force; 2) small punch can in time be lowered the temperature having pushed rear smooth taking-up, guarantees the small punch temperature lower than annealing temperature, guarantees that the hardness of small punch does not reduce, and improves the wearability of small punch, improves the punch life-span and guarantees that part quality is stable.3) small punch participates in forming parts, can use better raw material, but size is little, takes line cutting and common machine to add making; Body of punch only participates in power transmission, uses general material.The punch material consumption is few like this, and cost of manufacture is low.
Claims (2)
1. the side direction punch structure of a coredforging mould, it is characterized in that, described side direction punch comprises the small punch that is positioned at front end and is positioned at the die holder matrix of rear end, described small punch front end is used for contacting with part and extrusion modling goes out part foot shape, described die holder matrix rear end is used for being fixed on die holder or power-equipment, and described small punch rear end and die holder matrix front end contact position are that the plane is docked or adopted and can prevent the concavo-convex butt coupling that rotates.
2. the side direction punch structure of coredforging mould as claimed in claim 1, is characterized in that, described small punch length is 20-50cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220639347 CN202963348U (en) | 2012-11-28 | 2012-11-28 | Sidewise male die structure of multi-directional die forging die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220639347 CN202963348U (en) | 2012-11-28 | 2012-11-28 | Sidewise male die structure of multi-directional die forging die |
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| Publication Number | Publication Date |
|---|---|
| CN202963348U true CN202963348U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220639347 Expired - Fee Related CN202963348U (en) | 2012-11-28 | 2012-11-28 | Sidewise male die structure of multi-directional die forging die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111729A (en) * | 2016-06-28 | 2016-11-16 | 贵阳天友机械加工有限公司 | A kind of metal multiway bend forming method |
-
2012
- 2012-11-28 CN CN 201220639347 patent/CN202963348U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111729A (en) * | 2016-06-28 | 2016-11-16 | 贵阳天友机械加工有限公司 | A kind of metal multiway bend forming method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131128 |