CN202256074U - Mould for carrying out steel metal cup drawing test on servo press - Google Patents
Mould for carrying out steel metal cup drawing test on servo press Download PDFInfo
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- CN202256074U CN202256074U CN2011203923227U CN201120392322U CN202256074U CN 202256074 U CN202256074 U CN 202256074U CN 2011203923227 U CN2011203923227 U CN 2011203923227U CN 201120392322 U CN201120392322 U CN 201120392322U CN 202256074 U CN202256074 U CN 202256074U
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Abstract
The utility model relates to a mould for carrying out steel metal cup drawing test on a servo press. The mould comprises a bulbous convex die, an upper module, an expansion concave die seat and a side pressing device, wherein a sensor seat with a pressure sensor internally arranged is arranged on the bulbous convex die; the sensor seat is connected with the upper module that is mounted on a sliding block of the servo press; a position coordinate measuring apparatus is arranged on the upper module; the position sensor is mounted on the concave die seat; and the sensor seat and the position sensor are connected with a monitoring system through control circuits. By the mould provided by the utility model, the steel metal cup drawing test related to the deformation velocity can be precisely carried out; as test on various materials shown, the mould can be used for measuring the expansion performance index of sheet metal under deformation velocity, and is capable of simulating the measurement of a stamping part on the formation performance index based on the speed regularity of a crank press, so as to obtain technology project with higher conformity; the formation technology performance can be greatly improved; and the yield of the product can be raised as well.
Description
[technical field]
The utility model relates to all metal sheet stamping forming techniques and new material development field in traffic apparatuss of transport such as automobile, track, aviation, boats and ships, appearance electricity, the household electrical appliances, specifically a kind of mould in the AEG-process of the enterprising row metal plate of Pressesservo.
[background technology]
Under the overall background of global energy-saving and emission-reduction, the exploitation of novel, high strength, lightweight, composite board emerges in an endless stream.Follow the continuous lifting of new material usability, its forming technology performance receives publicity all the time.Except improving material, the raising of sheet material forming performance can also be set about from accurate mensuration and monitoring forming parameters.
The mensuration of forming technology performance need be stipulated in the forming process relevant process conditions, such as: temperature, lubricated, surface nature, TEXTURE STATE, pressure-pad-force state, deformation velocity or the like.The extensive application people technological along with the punching production realm information further go deep into the interactional understanding of numerous factors, and in numerous details parameters, deformation velocity has caused more concern to the influence of forming property.Y.W.Kwon (2011) has studied the forming property of aluminum alloy and the relation of strain rate, has proved the relevance between them, and proposes to hope through upgrading the hope that experimental assembly carries out more accurate test.Hadianfard (2008) has studied the rule of the strained speed influence of formability of Al-Mg Alloys.The experiment that Pei.Lum.Tso (2010) is done on the servo press of variable ram speed shows that the Limit Drawing height is relevant with deformation velocity.Serhat (2008) to the temperature of almag processing deep drawing experiment show its Limit Drawing than (LDR) except with temperature is relevant and ram speed much relations are also arranged.Explain that deformation velocity is an important process factor that concerns the forming technology performance.On the other hand; Plate and die surface friction also have very remarkable influence to forming process; H.Y.Gong (2004) research shows that the various lubricant methods of employing can be so that the homogeneity of distortion improves; Thereby improve the forming property of plate, and lubricated effect is also relevant with deformation velocity to a great extent.
The drawing of most metal plate processing is at present all carried out on crank press, and its deformation velocity is followed sinusoidal rule basically.The mensuration of these metal blank forming properties is all carried out with constant speed on hydraulic system, the forming property index that obtains and actual conditions certain difference is arranged, reduced the tolerance of forming technology.If can simulate stamping parts forms performance index under the speed law of crank punch press mensuration, then can obtain the higher process program of degree of conformity, the forming technology performance can obtain bigger improvement, and product percent of pass will improve thereupon.
Metal blank AEG-process method is one of method of punching press bulging performance test.Up to now, the AEG-process of GB regulation all is that actual speed situation that carry out and that produce has difference under low speed and constant velocity conditions, and the performance levels of precision that can reflect is limited.
The ultimate principle of AEG-process is to get into die through a bulb punch compressing circular metal plate; Because the outward flange of metal blank is pushed down with the flanging plate; And because the outward flange diameter value of plate is bigger; Metal material on the die plane can not get in the die hole and to replenish, and the metal material below the punch pulls open with two to the form generation attenuation of being drawn at last.Begin from the descending plate that touches of punch, pulled open in a flash to blank, the position difference of punch is the AEG-process value.Under all consistent situation of material thickness, Frotteurism, die entrance, surfaceness, velocity conditions, the AEG-process value of this kind metal blank is big more, and its expansion forming performance is good more.The method that characterizes this value has a lot.The method of China GB/T4156-2007 and Japanese JISZ2247-1970 regulation is " test specimen begins to produce penetrated crack; promptly stop stroke, records the distance that has descended, is the AEG-process value "; International standard ISO-R149 (1960) and DIN DIN50102 (1963); " when test specimen splits printing opacity, record the distance that has descended, be AEG-process value IE ".These methods are because judge that the opportunity that crackle produces is responsive inadequately or directly perceived, and (＜20mm/min) occasion still can reach certain precision, and under the higher deformation velocity of punch press, the error of reflection is bigger in the low speed test.
[summary of the invention]
The purpose of the utility model is exactly to solve above-mentioned deficiency; A kind of mould in the AEG-process of the enterprising row metal plate of Pressesservo is proposed; Measure the method for the bulging performance of metal blank under various different motion speed and rule condition, in order to instruct the process of accurately predicting plate Plastic Forming.As detecting information source, its quick responsive characteristics can be adapted to crank press operating rate faster with quartzy piezoelectric force transducer, and the sudden change of stamping press curve during with the generation crackle is as the foundation of differentiating the AEG-process value.
The utility model adopts following technical scheme: a kind of metal blank AEG-process mould related with deformation velocity; This mould comprises bulb punch 09, cope match-plate pattern 23, bulging die socket 08 and the flange fixing installation that forward is installed; On the said bulb punch 09 sensor holder 02 is housed; Be provided with pressure transducer 19 in the said sensor holder 02, but the measuring pressure scope is switched different according to survey metal blank material and thickness, intensity between 0-10kN and 0-20kN; Select suitable test specification, can improve measuring accuracy; Said sensor holder 02 connects cope match-plate pattern 23; Said cope match-plate pattern 23 is installed on the slide block of servo press; On the said cope match-plate pattern 23 position coordinates chi 05 is housed; Said die socket 08 is provided with position sensor 06, can write down the stroke of punch press, and can calculate the real-time deformation speed of each stroke thus.The accuracy of detection of linear position sensor is at ± 0.01mm, and said sensor holder 02, position sensor 06 connect supervisory system by operation circuit.
Said flange fixing installation comprises that flanging support 03, flanging plate 07, flanging insert 13 and die plate insert 11; Said flanging support 03 is installed on the cope match-plate pattern 23; Said flanging support 03 connects flanging plate 07; Said flanging plate 07 is provided with flanging and inserts 13, and said die plate insert 11 is installed on the die socket 08.Through changing can the conversion different die internal diameter of die plate insert and fillet to adapt to same bulging requirement of experiment; Insert except can adapting to different punch dimensional requirements through changing blank holder; Can also the conversion difference in functionality insert; Insert or the like such as having the blank holder radiation heating function, that have cooling or heating medium passage, be used for bulging district temperature controlling.
Leave the gap between the slide block of said sensor holder 02 and servo press.
Said pressure transducer adopts quartzy piezoelectric pressure indicator, and its SF is higher than general resistance strain-gauge transducer, can be used for the pressure test under the higher running speed of sliding block condition of crank press.
Said bulb punch adopts punch fixed spiro 04 to connect sensor holder 02; Pressure transducer 19 in the said sensor holder 02 is fixing through deciding moment of torsion screw 18; And it is locking with spring washer 16 that spline pad 17 is housed; Guaranteeing constant pretightning force, measuring accuracy is within ± 0.1kN scope during the 10kN range.
Said bulb punch adopts quick replaceable bulb punch, can change the specification of bulb punch according to different needs fast, but Sensor section wherein is general.
The beneficial effect of the utility model: can accurately carry out the related metal stamping plate cupping performance test of deformation velocity, the experiment of the multiple material of process shows, can be used in the bulging performance index of measuring metal blank under the speed change condition.Can simulate stamping parts forms performance index under the speed law of crank punch press mensuration, can obtain the higher process program of degree of conformity, the forming technology performance can obtain bigger improvement, and product percent of pass will improve thereupon.
[description of drawings]
Fig. 1 is the variable metal blank AEG-process mould structure synoptic diagram of the deformation velocity of the utility model;
Fig. 2 is that the deformation velocity of the utility model is that synoptic diagram is calculated in metal blank AEG-process in 10% o'clock;
Fig. 3 is that the deformation velocity of the utility model is that synoptic diagram is calculated in metal blank AEG-process in 80% o'clock;
Among the figure, 01 patrix gib screw, 02 sensor holder, 03 flanging board mount, 04 punch fixed spiro, 05 position coordinates chi, 06 position sensor, 07 flanging plate, 08 die socket, 09 bulb punch, 10 hydraulic ram, 11 die plate inserts, 12 blanks, 13 blank holders are inserted, 14 sensor packing rings, 15 pins, 16 spring washers, 17 spline pads, 18 are decided moment of torsion screw, 19 pressure transducers, 20 centring rings, 21 gib screws, 22 sensor extension lines, 23 cope match-plate patterns.
[embodiment]
Further specify below below in conjunction with accompanying drawing the utility model being done:
As shown in Figure 1, the travelling speed of the servo-pressing machine slide block that the utility model adopts can be provided with five sections constant intervals, carries out setting value with the number percent of maximal rate, changes based on the sinusoidal curve rule, and maximal rate can reach 786mm/s.
The bulb punch 09 usefulness punch fixed spiro 04 of the utility model connects cope match-plate pattern 23 through sensor holder 02; And be installed on the slide block of servo press; Leave the gap between sensor holder 02 and the slide block; To guarantee that pressure transducer 19 two ends can afford the bulb punch and pass the stamping press of coming, decide moment of torsion screw 18 for three and have correct pretightning force in order to adjustment pressure transducer 19, can reflect the stamping press value exactly; The location that pin 15 keeps between sensor holder 02 and the cope match-plate pattern 23, spring washer 16, spline pad 17 are in order to prevent screw loosening.The stamping press that produces on the bulb punch 09 by pressure transducer 19 perception after, be sent to supervisory system through sensor extension line 22 and show in real time.Flanging board mount 03, flanging plate 07, blank holder are inserted and 13 are fixed together and are driven by hydraulic mechanism independently, and pressure-pad-force can change between 0.1kN-200kN.The slide block movement speed of servo press is adjustable on sinusoidal basis, thereby can control the movement velocity of bulb punch 09, and the deformation velocity of expansion forming changes thereupon.Position coordinates chi 05 is installed on the cope match-plate pattern 23, moves with slider of punch, after the travel position of ram speed and bulb punch all can be detected by position coordinates chi 05, position sensor 06, by supervisory system record and calculation display.
During test, earlier plate blank 12 is placed on die plate insert 11 planes, inserts with blank holder and 13 push down the outer ring of blank 12, then, with the speed law of setting test specimen is pressed into die with bulb punch 09 with the pressure of setting.Because this routine concave nib is 0.27 for the ratio of 27mm and blank external diameter directly, even do not apply its outer shroud of pressure-pad-force radial shrinkage does not take place yet, and the test specimen center section blank that contacts with drift receives two-way action of pulling stress and realize that bulging is out of shape.If billet size hour, can retrain the trend of blank outer ring radial shrinkage through the size of control pressure-pad-force.
When the bulb punch touched blank, load rose suddenly; After bulging takes place; When test specimen occurs penetrating the crack; Downward sudden change (Fig. 2, Fig. 3) can appear in the load that acts on the spherical drift, from show curve, reads the pairing travel position of load catastrophe point, converses actual compression distance; Be the Erichsen test degree of depth of GB regulation, the IE value is counted in letter.The IE value is as a material behavior value of evaluation sheet material expansion forming ability.The IE value is big more, and the expansion forming performance is good more.
The expansion forming performance of different metals plate is different to the sensitivity of deformation velocity, and the IE value of same sample is also variant under different deformation velocitys.The utility model is associated deformation velocity IE value, has proposed IE (notion v) and assay method.Said method can be through changing slide block movement speed; Metal blank is carried out the bulging test under the different distortion velocity conditions; To obtain the IE value under the certain variations velocity conditions, make the bulging performance parameter of measuring more accurately to be used to instruct the actual Sheet Metal Forming Technology under the different punch press operation curve rules to formulate.
Instance 1: adjust servo press closes height to 300mm; The ram speed that servo press is set is two sections, and first section is 100% (target location apart from lower dead center 10mm), and second section is 10%; Sample is that 1.0mm, diameter are the brass sheet of 98.2mm; 20 ℃ of experimental situation temperature, the sample upper surface is coated with a little machine oil, repeats to do four samples, and the record test figure is averaged, and it is as shown in Figure 2 that calculating obtains " speed 10%, brass sheet, time-load-stroke-tensionvelocity curve "; In Fig. 2 through initial load catastrophe point A with penetrate load catastrophe point B and respectively make a straight line that is parallel to ordinate; The intercepting loaded line obtains C and D point; Measure and calculate acquisition C; The difference h=7.14mm of D ordinate begins to penetrate to sample and breaks for the bulb punch touches the sample blank, and the physical location of punch changes; The intersection point E of intercepting and rate curve again, recording the ordinate value that E orders is v=5mm/s, the real time kinematics velocity amplitude of punch when breaking for penetrating.Write down IE (v)=7.14 (5) mm of this sample.
Instance 2: adjust servo press closes height to 300mm; The ram speed that servo press is set is two sections, and first section is 100% (target location apart from lower dead center 10mm), and second section is 80%; Sample is that 1.0mm, diameter are the brass sheet of 98.2mm; 20 ℃ of experimental situation temperature, the sample upper surface is coated with a little machine oil, repeats to do four samples, and the record test figure is averaged, and it is as shown in Figure 3 to obtain " speed 80%, brass sheet, time-load-stroke-tensionvelocity curve "; Same measure also to calculate obtain C, the difference h=6.94mm of D ordinate, recording the ordinate value that E orders is v=35mm/s.Write down IE (v)=6.94 (35) mm of this sample.
Claims (6)
1. mould in the AEG-process of the enterprising row metal plate of Pressesservo; This mould comprises bulb punch (09), cope match-plate pattern (23), bulging die socket (08) and the flange fixing installation that forward is installed; It is characterized in that: sensor holder (02) is housed on the said bulb punch (09), is provided with pressure transducer (19) in the said sensor holder (02), said sensor holder (02) connects cope match-plate pattern (23); Said cope match-plate pattern (23) is installed on the slide block of servo press; Position coordinates chi (05) is housed on the said cope match-plate pattern (23), and said die socket (08) is provided with position sensor (06), and said sensor holder (02), position sensor (06) connect supervisory system by operation circuit.
2. the mould in the AEG-process of the enterprising row metal plate of Pressesservo according to claim 1; It is characterized in that: said flange fixing installation comprises that flanging support (03), flanging plate (07), flanging insert (13) and die plate insert (11); Said flanging support (03) is installed on the cope match-plate pattern (23); Said flanging support (03) connects flanging plate (07), and said flanging plate (07) is provided with flanging and inserts (13), and said die plate insert (11) is installed on the die socket (08).
3. the mould in the AEG-process of the enterprising row metal plate of Pressesservo according to claim 1 and 2 is characterized in that: leave the gap between the slide block of said sensor holder (02) and servo press.
4. the mould in the AEG-process of the enterprising row metal plate of Pressesservo according to claim 3, it is characterized in that: said pressure transducer adopts quartzy piezoelectric pressure indicator.
5. the mould in the AEG-process of the enterprising row metal plate of Pressesservo according to claim 4; It is characterized in that: said bulb punch adopts punch fixed spiro (04) to connect sensor holder (02); Pressure transducer (19) in the said sensor holder (02) is fixing through deciding moment of torsion screw (18), and spline pad (17) and spring washer (16) are housed.
6. the mould in the AEG-process of the enterprising row metal plate of Pressesservo according to claim 5 is characterized in that: said bulb punch adopts quick replaceable bulb punch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203923227U CN202256074U (en) | 2011-10-14 | 2011-10-14 | Mould for carrying out steel metal cup drawing test on servo press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203923227U CN202256074U (en) | 2011-10-14 | 2011-10-14 | Mould for carrying out steel metal cup drawing test on servo press |
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| Publication Number | Publication Date |
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| CN202256074U true CN202256074U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203923227U Expired - Fee Related CN202256074U (en) | 2011-10-14 | 2011-10-14 | Mould for carrying out steel metal cup drawing test on servo press |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507344A (en) * | 2011-10-14 | 2012-06-20 | 上海工程技术大学 | Metal sheet cupping test method related to strain rate |
| CN102901701A (en) * | 2012-10-29 | 2013-01-30 | 哈尔滨工业大学 | Plastic micro volume forming friction scale effect evaluating method and device |
| CN103302186A (en) * | 2013-06-28 | 2013-09-18 | 苏州唐氏机械制造有限公司 | Intelligent pressure detection stamping die |
| CN103698233A (en) * | 2013-12-16 | 2014-04-02 | 武汉钢铁(集团)公司 | Determination method for cupping value of metal material and die |
| CN107695276A (en) * | 2017-11-08 | 2018-02-16 | 浙江申吉钛业股份有限公司 | The new manufacturing process of spherical flange core axial workpiece and mould |
| CN109708952A (en) * | 2019-01-14 | 2019-05-03 | 山东建筑大学 | A kind of high speed impact forming limit test equipment and method |
-
2011
- 2011-10-14 CN CN2011203923227U patent/CN202256074U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507344A (en) * | 2011-10-14 | 2012-06-20 | 上海工程技术大学 | Metal sheet cupping test method related to strain rate |
| CN102507344B (en) * | 2011-10-14 | 2015-07-08 | 上海工程技术大学 | Metal sheet cupping test method related to strain rate |
| CN102901701A (en) * | 2012-10-29 | 2013-01-30 | 哈尔滨工业大学 | Plastic micro volume forming friction scale effect evaluating method and device |
| CN103302186A (en) * | 2013-06-28 | 2013-09-18 | 苏州唐氏机械制造有限公司 | Intelligent pressure detection stamping die |
| CN103698233A (en) * | 2013-12-16 | 2014-04-02 | 武汉钢铁(集团)公司 | Determination method for cupping value of metal material and die |
| CN107695276A (en) * | 2017-11-08 | 2018-02-16 | 浙江申吉钛业股份有限公司 | The new manufacturing process of spherical flange core axial workpiece and mould |
| CN109708952A (en) * | 2019-01-14 | 2019-05-03 | 山东建筑大学 | A kind of high speed impact forming limit test equipment and method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20141014 |
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| EXPY | Termination of patent right or utility model |