CN103286235A - Automatic production line for hot stamping formation of magnesium alloy boards - Google Patents

Automatic production line for hot stamping formation of magnesium alloy boards Download PDF

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Publication number
CN103286235A
CN103286235A CN2013101357897A CN201310135789A CN103286235A CN 103286235 A CN103286235 A CN 103286235A CN 2013101357897 A CN2013101357897 A CN 2013101357897A CN 201310135789 A CN201310135789 A CN 201310135789A CN 103286235 A CN103286235 A CN 103286235A
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CN
China
Prior art keywords
magnesium alloy
conveyer belt
mould
production line
manipulator
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Application number
CN2013101357897A
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Chinese (zh)
Inventor
李红成
黄光胜
姜山
李�权
李金翰
程仁菊
蒋显全
潘复生
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重庆市科学技术研究院
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Priority to CN2013101357897A priority Critical patent/CN103286235A/en
Publication of CN103286235A publication Critical patent/CN103286235A/en

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Abstract

The invention discloses an automatic production line for hot stamping formation of magnesium alloy boards. The automatic production line comprises a heating furnace, a stacking device, an unstacking device and conveyor belts, wherein the stacking device is used for conveying the magnesium alloy boards to the heating furnace; the unstacking device is used for separating the heated magnesium alloy boards; heat insulation covers are arranged on both the upper sides and the lower sides of the conveyor belts, a plurality of heaters are arranged on the inner side of the heat insulation covers, and besides, infrared thermometric indicators connected with the heaters are arranged in the heat insulation covers; a furnace outlet manipulator is arranged on the upstream of the conveyor belts and used for conveying single board onto one conveyor belt; a mould inlet manipulator is arranged on the downstream of the conveyor belts and used for conveying the boards to a formation mould; the formation mould is connected with mould temperature control equipment; and a discharging manipulator is arranged on the downstream of the formation mould and used for conveying formed magnesium alloy to a discharging mechanism. The automatic production line can carry out assembly line type automatic formation of magnesium alloy stamping parts, so that less manpower is required; production efficiency is high; and owing to reasonable production line structure and process design, rate of finished products is high and cost is low.

Description

Magnesium alloy plate drop stamping shaping automation production line

Technical field

The invention belongs to the plastic working field of non-ferrous metal, be specifically related to automatic production line and the production method of a magnesium alloy plate drop stamping moulding.

Background technology

Owing to have bio-compatibility and the recyclable recycling that density is low, specific strength is high, specific stiffness is high, good, the anti-capability of electromagnetic shielding of shock resistance is good, good, magnesium alloy is as structural material or functional material all has very big application potential.But the plastic deformation ability of magnesium alloy is relatively poor, mainly contains following 2 reasons:

(1) magnesium alloy commonly used belongs to close-packed hexagonal structure, and plastic deformation ability at room temperature is relatively poor, and slip system is few, has only basal slip system to start, and this is the basic reason of plastic deformation ability difference.

(2) have stronger basal plane texture through the magnesium alloy plate of rolling acquisition, this basal plane texture is unfavorable for the drawing and forming of sheet material, and the punch forming of magnesium alloy plate has been brought difficulty.

Owing to above reason, magnesium alloy plate at room temperature is difficult to punch forming.Along with the rising of temperature, because starting of the effect of magnesium alloy dynamic recovery, dynamic recrystallization and non-basal slip system makes magnesium alloy plate have crystallized ability preferably under middle hot conditions.Compare with other metals, the unit volume specific heat capacity of magnesium alloy is low, and the magnesium alloy heat radiation is faster.Therefore be transported in the process of diel in actual thin plate heating, usually because the magnesium alloy sheet heat scatters and disappears its temperature significantly reduced, cause forming temperature wayward, the percent defective height.

The punching production of present magnesium alloy plate, adopt following method to reduce temperature drop usually: the one, the heating-up temperature of raising heating furnace, shortcoming are that power consumption is high, the magnesium alloy plate surface oxidation is serious, the poor dimensional precision of stamping parts, the 2nd, heat magnesium slab material with mould, shortcoming is that production efficiency is low.

Therefore those skilled in the art are devoted to develop a kind of production line and production method that can improve magnesium alloy plate drop stamping qualification rate and production efficiency.

Summary of the invention

Because the above-mentioned defective of prior art, technical problem to be solved by this invention provide a kind of can improve the magnesium alloy plate drop stamping qualification rate with production line production efficiency and production method.

For realizing the purpose of above-mentioned first aspect, the invention provides a kind of magnesium alloy plate drop stamping shaping automation production line, comprise heating furnace; Bunching device is used for magnesium alloy plate is sent into described heating furnace; The de-stacking device, the magnesium alloy plate after being used for heating separates; Conveyer belt; The both sides up and down of described conveyer belt are provided with stay-warm case; The inboard of described stay-warm case is provided with a plurality of heaters; Be provided with the infrared thermometer that is connected with each described heater in the described stay-warm case; The provided upstream of described conveyer belt is equipped with the manipulator of coming out of the stove, and is used for individual sheet material is served described conveyer belt; The downstream of described conveyer belt is provided with into the mould manipulator, is used for sheet material is sent into mould; Described mould is connected with the mould temperature control device; The downstream of described mould is provided with the discharging manipulator, is used for the magnesium alloy of moulding is sent into discharging mechanism.

For improving the drawing and forming performance of magnesium alloy plate, described conveyer belt comprises first conveyer belt and second conveyer belt that arranges at interval; Be respectively arranged with first oiling mechanism and second oiling mechanism on described first conveyer belt and second conveyer belt; Carry between first conveyer belt and second conveyer belt material stirring-up mechanism is set.

For realizing the goal of the invention of above-mentioned second aspect, the present invention also provides a kind of magnesium alloy plate punch forming automatic production method, may further comprise the steps:

(1) according to the difference of pressed part press depth, to the mould and die preheating of the conveyer belt of transportation sheet material and the pressing sheet material design temperature T between 100-300 ℃; The concrete value of temperature T can be according to the pull and stretch of goods than deciding, and pull and stretch is bigger than more, needs the T value more high:

(2) magnesium alloy plate is heated to design temperature T, and is incubated 3 minutes;

(3) transport sheet material to diel, and sheet material is being delivered in the process of mould, make sheet material remain at design temperature T, make temperature fluctuation within ± 5 ℃;

(4) punching press of sheet material: after sheet material enters the mould location, the beginning punching press;

(5) discharging.

For improving the drawing and forming performance of magnesium alloy plate, in the step (3), in the tow sides coating lubricating oil of sheet material.

In the step (4), after sheet material is sent mould to, reduce the Lift of mould, to reduce scattering and disappearing of heat as far as possible.Here do not relate to the design of mold height, the height of mould is constant, just emphasizes to reduce the height of opening mold satisfying and blank can being put under the condition of mould as far as possible, can reduce scattering and disappearing of heat like this.

The invention has the beneficial effects as follows: the present invention can carry out streamline to magnesium alloy stamping part and generate automatically, and therefore manually less, the production efficiency height, and because reasonably production line structure and technological design, yield rate height, cost are low.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention.

The specific embodiment

The invention will be further described below in conjunction with drawings and Examples:

As shown in Figure 1, a kind of magnesium alloy plate drop stamping shaping automation production line comprises bunching device 1, de-stacking device 2, heating furnace 3 and conveyer belt.

Bunching device 1 is used for magnesium alloy plate is sent into heating furnace 3.

Magnesium alloy plate after de-stacking device 2 is used for heating separates.

Conveyer belt comprises the first conveyer belt 8a and the second conveyer belt 8b that arranges at interval, and the both sides up and down of the first conveyer belt 8a and the second conveyer belt 8b are provided with stay-warm case 7, and the inboard of stay-warm case 7 is provided with a plurality of heaters 6.Be provided with the infrared thermometer 11 that is connected with each heater 6 in the stay-warm case 7, infrared thermometer 11 is connected with the controller (not shown), and this controller also is connected with each heater 6 simultaneously.

The middle part of the first conveyer belt 8a and the second conveyer belt 8b is respectively arranged with the first oiling mechanism 10a and the second oiling mechanism 10b, carries between the first conveyer belt 8a and the second conveyer belt 8b material stirring-up mechanism 9 is set.

The provided upstream of the first conveyer belt 8a is equipped with the manipulator 5 of coming out of the stove, and is used for individual sheet material is served conveyer belt; The downstream of the second conveyer belt 8b is provided with into mould manipulator 12, is used for sheet material is sent into mould 13.

Mould 13 is connected with mould temperature control device 16, and mould temperature control device 16 contains die heater and attemperating unit two parts.

The downstream of mould 13 is provided with discharging manipulator 14, is used for the magnesium alloy of moulding is sent into discharging mechanism 15.

Utilize above-mentioned production line can realize magnesium alloy plate punch forming automatic production method, as the thick magnesium alloy cartridge type spare of processing 0.6mm, may further comprise the steps:

(1) heater 6 and mould temperature control device are preheated to 200 ℃ of settings with the first conveyer belt 8a, the second conveyer belt 8b and mould 13, externally transmit heat to reduce sheet material:

(2) utilize stacking mechanism 1 that magnesium alloy plate is sent into heating furnace 3, sheet material is heated to 200 ℃, and be incubated 3 minutes, make sheet material each several part temperature uniformity; Utilize de-stacking mechanism 2 and the manipulator 5 of coming out of the stove that sheet material is sent on the first conveyer belt 8a then;

(3) on the first conveyer belt 8a, be coated with the positive coating lubricating oil that 10a gives sheet material by first oiling mechanism, enter the second conveyer belt 8b after utilizing material stirring-up mechanism 9 to make the positive and negative location swap of sheet material then, utilize the second oiling mechanism 10b to smear lubricating oil for the reverse side of sheet material then; Utilize mould manipulator 12 that sheet material is sent into mould 13; In this course, infrared thermometer 11 obtains the temperature of plate surface, then this temperature is passed to controller, and controller is arranged in the conveyer belt heater 6 of both sides up and down by control, makes the temperature of sheet material remain at 200 ± 5 ℃ scope;

(4) punching press of sheet material: after sheet material enters shaping dies 13 location, the beginning punching press, punching press is to the required degree of depth of product, and limit stretching ratio can reach more than 2.5;

(5) open mould 13, utilize discharging manipulator 14 that shaped article is sent into discharging mechanism 15, the output production line.

When the friction between sheet material and mould is big, increase owing to frictional force causes the plate radial stress, thereby cause drawing pressure to increase, entered the tension that the sheet material after the distortion bears between the punch-die with increasing, make this part sheet material be easy to break.So, in the step (3), in the tow sides coating lubricating oil of sheet material, can improve the drawing and forming performance of magnesium alloy plate effectively.

In the step (4), after sheet material is sent mould to, reduce the Lift of mould, to reduce scattering and disappearing of heat as far as possible.Here do not relate to the design of mold height, the height of mould is constant, just emphasizes the height that as far as possible reduces opening mold under condition blank can be put into mould satisfying can reduce scattering and disappearing of heat like this.

When processing the sheet material of other thickness and pull and stretch ratio, also just the preheat temperature of the first conveyer belt 8a, the second conveyer belt 8b, mould 13 and sheet material is set at other values of 100-300 ℃.

Because magnesium alloy is the close-packed hexagonal structure metal, has only slide surface of basal plane at normal temperatures, three slip systems, plastic deformation ability is relatively poor; Rising along with heating-up temperature, the mobility of atom strengthens, critical shearing stress difference between non-basal slip system and the basal slip system reduces, potential non-basal slip such as prismatic surface and the conical surface is to start by hot activation, thereby the plastic deformation ability of magnesium alloy is largely increased, the punch forming ability of magnesium alloy also obviously strengthens, and therefore above-mentioned production line and production method can be enhanced productivity and yield rate, and reduce production costs.

More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can design according to the present invention make many modifications and variations.Therefore, all technical staff in the art all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.

Claims (2)

1. a magnesium alloy plate drop stamping shaping automation production line is characterized in that: comprise heating furnace (3);
Bunching device (1) is used for magnesium alloy plate is sent into described heating furnace (3);
De-stacking device (2), the magnesium alloy plate after being used for heating separates;
Conveyer belt; The both sides up and down of described conveyer belt are provided with stay-warm case (7); The inboard of described stay-warm case (7) is provided with a plurality of heaters (6); Be provided with the infrared thermometer (11) that is connected with each described heater (6) in the described stay-warm case (7);
The provided upstream of described conveyer belt is equipped with the manipulator of coming out of the stove (5), is used for individual sheet material is served described conveyer belt; The downstream of described conveyer belt is provided with into mould manipulator (12), is used for sheet material is sent into mould (13);
Described mould (13) is connected with mould temperature control device (16);
The downstream of described mould (13) is provided with discharging manipulator (14), is used for the magnesium alloy of moulding is sent into discharging mechanism (15).
2. magnesium alloy plate drop stamping shaping automation production line as claimed in claim 1 is characterized in that: described conveyer belt comprises first conveyer belt (8a) and second conveyer belt (8b) that arranges at interval; Be respectively arranged with first oiling mechanism (10a) and second oiling mechanism (10b) on described first conveyer belt (8a) and second conveyer belt (8b); Carry between first conveyer belt (8a) and second conveyer belt (8b) material stirring-up mechanism (9) is set.
CN2013101357897A 2013-04-18 2013-04-18 Automatic production line for hot stamping formation of magnesium alloy boards CN103286235A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103920780A (en) * 2014-04-14 2014-07-16 沈阳众拓机器人设备有限公司 Automated hot-stamping production line
CN103920826A (en) * 2014-04-04 2014-07-16 济南二机床集团有限公司 Automatic conveying device for workpieces
CN104056994A (en) * 2014-06-17 2014-09-24 无锡朗贤汽车组件研发中心有限公司 Intense hot forming production line and hot forming process for boron steel part for automobile
CN104340690A (en) * 2014-10-23 2015-02-11 济南奥图自动化工程有限公司 Novel robot bilateral lateral stacking system
CN104843256A (en) * 2015-04-16 2015-08-19 天津智通机器人有限公司 Catalyst dry processing production line
CN105081034A (en) * 2015-08-24 2015-11-25 深圳罗伯泰克科技有限公司 Hot-stamping integral forming device
CN105750426A (en) * 2014-12-18 2016-07-13 北京有色金属研究总院 Magnesium-alloy sectional-material high-temperature prestretching rapidly heating system
CN107008793A (en) * 2017-05-09 2017-08-04 深圳市中创镁工程技术有限公司 A kind of magnesium alloy board progressive stamping linear system system
CN107335706A (en) * 2017-08-08 2017-11-10 肥西县通力机械有限公司 A kind of method for improving magnesium alloy plate hot stamping crystallized ability
CN107790539A (en) * 2017-10-26 2018-03-13 杨晓艳 A kind of magnesium alloy punched technique

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JP2001071037A (en) * 1999-09-03 2001-03-21 Matsushita Electric Ind Co Ltd Press working method for magnesium alloy and press working device
CN1345641A (en) * 2000-09-22 2002-04-24 江兴锻压工业股份有限公司 Magnesium alloy forging formation technology
CN201115867Y (en) * 2007-09-18 2008-09-17 比亚迪股份有限公司 Equipment for processing board
CN101623823A (en) * 2009-06-22 2010-01-13 胡平 Automatic production line for warm/hot forming complete equipment of energy-saving high-strength sheet steel
CN102039349A (en) * 2009-10-23 2011-05-04 蒂森克虏伯金属成型技术有限公司 Method and thermal recasting assembly for producing a hardened, thermally recast workpiece
KR101130861B1 (en) * 2011-08-10 2012-03-28 에스아이에스 주식회사 Hot stamping forming system and method there for
CN102441509A (en) * 2011-09-23 2012-05-09 盘锦人和建筑材料有限公司 Painting and drying machine for integrated plate for thermal insulation and decoration of exterior wall
CN202224536U (en) * 2011-09-02 2012-05-23 王玉亮 Production line for manufacturing automobile safety components with high-strength steel plates by means of hot pressing

Patent Citations (8)

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Publication number Priority date Publication date Assignee Title
JP2001071037A (en) * 1999-09-03 2001-03-21 Matsushita Electric Ind Co Ltd Press working method for magnesium alloy and press working device
CN1345641A (en) * 2000-09-22 2002-04-24 江兴锻压工业股份有限公司 Magnesium alloy forging formation technology
CN201115867Y (en) * 2007-09-18 2008-09-17 比亚迪股份有限公司 Equipment for processing board
CN101623823A (en) * 2009-06-22 2010-01-13 胡平 Automatic production line for warm/hot forming complete equipment of energy-saving high-strength sheet steel
CN102039349A (en) * 2009-10-23 2011-05-04 蒂森克虏伯金属成型技术有限公司 Method and thermal recasting assembly for producing a hardened, thermally recast workpiece
KR101130861B1 (en) * 2011-08-10 2012-03-28 에스아이에스 주식회사 Hot stamping forming system and method there for
CN202224536U (en) * 2011-09-02 2012-05-23 王玉亮 Production line for manufacturing automobile safety components with high-strength steel plates by means of hot pressing
CN102441509A (en) * 2011-09-23 2012-05-09 盘锦人和建筑材料有限公司 Painting and drying machine for integrated plate for thermal insulation and decoration of exterior wall

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103920826B (en) * 2014-04-04 2015-12-02 济南二机床集团有限公司 A kind of automatic conveying device for workpieces
CN103920826A (en) * 2014-04-04 2014-07-16 济南二机床集团有限公司 Automatic conveying device for workpieces
CN103920780B (en) * 2014-04-14 2016-03-30 沈阳众拓机器人设备有限公司 Drop stamping automatic production line
CN103920780A (en) * 2014-04-14 2014-07-16 沈阳众拓机器人设备有限公司 Automated hot-stamping production line
CN104056994A (en) * 2014-06-17 2014-09-24 无锡朗贤汽车组件研发中心有限公司 Intense hot forming production line and hot forming process for boron steel part for automobile
CN104056994B (en) * 2014-06-17 2016-01-20 无锡朗贤汽车组件研发中心有限公司 The intensive hot forming production line of automobile boron steel part and heat forming technology
CN104340690A (en) * 2014-10-23 2015-02-11 济南奥图自动化工程有限公司 Novel robot bilateral lateral stacking system
CN105750426B (en) * 2014-12-18 2017-11-14 北京有色金属研究总院 Magnesium alloy profiles high temperature is pre-stretched automotive quick-heat system
CN105750426A (en) * 2014-12-18 2016-07-13 北京有色金属研究总院 Magnesium-alloy sectional-material high-temperature prestretching rapidly heating system
CN104843256A (en) * 2015-04-16 2015-08-19 天津智通机器人有限公司 Catalyst dry processing production line
CN105081034A (en) * 2015-08-24 2015-11-25 深圳罗伯泰克科技有限公司 Hot-stamping integral forming device
CN107008793A (en) * 2017-05-09 2017-08-04 深圳市中创镁工程技术有限公司 A kind of magnesium alloy board progressive stamping linear system system
CN107335706A (en) * 2017-08-08 2017-11-10 肥西县通力机械有限公司 A kind of method for improving magnesium alloy plate hot stamping crystallized ability
CN107790539A (en) * 2017-10-26 2018-03-13 杨晓艳 A kind of magnesium alloy punched technique

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Application publication date: 20130911