CN202137255U - Hot stamping die with temperature measuring system - Google Patents
Hot stamping die with temperature measuring system Download PDFInfo
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- CN202137255U CN202137255U CN 201120036912 CN201120036912U CN202137255U CN 202137255 U CN202137255 U CN 202137255U CN 201120036912 CN201120036912 CN 201120036912 CN 201120036912 U CN201120036912 U CN 201120036912U CN 202137255 U CN202137255 U CN 202137255U
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- measuring system
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Abstract
The utility model discloses a hot stamping die with a temperature measuring system, which comprises a female die, a male die, a plate support positioning device, a built-in die cooling system, the built-in die temperature measuring system and an external temperature recording device. The hot stamping die is characterized in that profiles are respectively arranged on the female die and the male die, the shape of each profile corresponds to that of a workpiece, cooling pipelines are laid inside the female die and the male die in a staggered manner and connected with water inlets and water outlets by distribution grooves, a plurality of thermocouples are embedded on the surface of the female die and at specific internal positions and on the surface of the male die, and the thermocouples are connected with the multi-channel temperature recording device. The hot stamping die has the advantages that full-period temperature monitoring is realized, quality of a product can be judged and predicted directly according to a temperature curve, disqualified products can be ejected in the first place, inspection period is shortened, and production cost is lowered.
Description
Technical field
The present invention relates to technical field of hot stamping and forming, relate in particular to a kind of hot stamping die, and relate to a kind of hot stamping die that carries temp measuring system.
Background technology
The drop stamping technology is that ultrahigh-strength steel plates is heated to more than the austenitizing temperature and fully insulation, be shaped with quenching integrated mould in be shaped rapidly and obtain high-intensity martensitic structure, thereby obtain that forming accuracy is high, high-intensity heat-punch member.In mould, deformation and heat treatment take place in steel plate simultaneously, and two processes are brought out and alternately stack generation each other, so hot stamping die is the key that realizes the drop stamping technology.Deformation guarantees that through mould structure design shaping key parameters such as sheet material deformation quantity and attenuate amount can obtain through the measurement of comparison before and after mould design and the sheet forming; Structural transformation realizes through heat treatment; Heat treatment process is a special process; Crudy is difficult for maybe can not fully being verified through check thereafter, therefore the temperature of heat treatment process in the mould is carried out the necessary means that monitoring and measuring is control hot forming structural transformation.
Hot stamping die designs and structure both at home and abroad at present; Concentrate on multi-form die cavity arrange with processing mode on; Hot stamping die (application number 200910223586.7) like a kind of integrated cooling pipeline; The pre-buried pipe hot stamping die of auto parts monoblock type (Granted publication CN201603803U), hot forming tool (publication number CN 1748983), the hot forming of high-duty steel part and hole-punching integrated mould (Granted publication CN201353617Y); A kind of novel thermal forming method of high-strength steel plate stamping part (publication number CN1016193883A); These moulds all can be realized super-high strength steel steel formability and quenching integrated purpose, the workpiece that acquisition has given shape and martensitic structure, but its weak point is; All not in mould Design and Machining go out the temp measuring system of the rate of temperature change of monitoring and measuring plate and mould, be no judge of the structural transformation performance directly related with rate of temperature change.
Therefore,, be badly in need of providing a kind of and can solve the hot press-formed quenching problem of super-high strength steel plate, again the mould of monitoring and measuring mould and plate rate of temperature change simultaneously in the hot stamping die technical field.
Summary of the invention
The present invention aims to provide and a kind ofly can solve the hot press-formed quenching problem of super-high strength steel plate; The mould of monitoring and measuring mould and plate rate of temperature change simultaneously again; With solve existing hot stamping die be difficult to monitoring and measuring mould and plate be shaped and quenching process in rate of temperature change, and be difficult to judge and evaluate technical barriers such as the structural transformation completion rate that causes by rate of temperature change and the rejecting of defective work low cost.
Above-mentioned purpose implementation method of the present invention is explained as follows:
A kind of hot stamping die that carries temp measuring system is characterized in that, said mould comprises die, punch, plate supporting and positioning device, the built-in cooling system of mould, the built-in temp measuring system of mould and multichannel temperature harvester device.The built-in cooling system of said mould is laid on said die and punch is inner; Said die all has inlet channel to be connected with the built-in cooling system of said mould with outlet conduit with said punch; The built-in temp measuring system of said mould is pre-buried in said die and convex mould surface or body; Be connected with said multichannel temperature harvester, measure and write down the temperature of Forming Workpiece or mould.
Further; Said built-in cooling system is according to workpiece shape and cooling requirement; Be laid on mould inside with tube shaped arranged side by side; The workpiece pressurized in mould that in the drop stamping process, is in austenitizing is shaped, and said cooling system reaches the effect that workpiece is quenched through cooling medium reduction mold temperature simultaneously, and said cooling pipe is staggered to be laid in said die and the said punch.Water inlet and delivery port are established in described die, punch opposite end, and water inlet links to each other with the mould inside cooling pipe through splitter box, and the junction seals with sealing ring, forms the cooling medium circulation system of complete smoothness; Die and the built-in cooling pipe of punch die cavity take staggered pattern to lay.
In addition, said plate positioner is made up of 4 longitudinal bracing alignment pins and 2 located lateral pins; Said longitudinal bracing alignment pin top is a ledge structure, and the bottom is a spring structure; Said ledge structure avoids plate directly to contact with mould at plate pressurized front end panel material, locatees the plate lengthwise position simultaneously, and said spring structure shrinks under the punch effect, and alignment pin descends thereupon, guarantees that plate is shaped when matched moulds; Said located lateral pin top is fixed by ring flange, and the bottom is a spring structure, fixedly the plate lateral attitude.4 longitudinal bracing alignment pins pass through the lengthwise position of the ledge structure location plate at top, hold up the red heat plate through spring structure simultaneously, avoid the thermal stress distribution inequality that is molded as because of first engagement concavity; 2 located lateral pins are distributed in two ends, the horizontal diagonal angle of mould, the lateral attitude of location plate; Longitudinal bracing alignment pin and located lateral pin bottom mounting spring structure, when guaranteeing that plate receives punch pressure, alignment pin descends with plate under spring action, accomplishes the matched moulds forming process.
Said temp measuring system is divided into mould temperature thermocouple and workpiece temperature thermocouple.Said mould temperature thermocouple is an armoured thermocouple, and parallel pre-buried under die and punch profile, apart from profile 1mm-3mm place, the thermocouple measurement end contacts with mould; Said workpiece temperature thermocouple is that spring presses solidly armoured thermocouple, and is pre-buried in punch, and the thermocouple measurement end stretches out punch profile surface 1-2mm, through spring compression, thermocouple end and surface of the work is close to.The built-in temp measuring system of mould is pre-buried in the surface or body of die and punch.Built-in temp measuring system is made up of mould temperature thermocouple and workpiece temperature thermocouple.Through laying the stationary heat galvanic couple at the die face fluting, parallel pre-buried under die and punch profile, apart from profile 1mm-3mm place, the thermocouple measurement end contacts with mould, in hot press-formed process, measures and write down the variations in temperature of said die and punch; Said armoured thermocouple diameter range is 1-3mm.
Again, said workpiece temperature thermocouple is that spring presses solidly armoured thermocouple, through the mode of punching; Vertical pre-buried in punch profile surface; And stretch out and smear profile surface 1-2mm, through stage clip thermocouple end and surface of the work are close to, in the drop stamping process, measure and write down the variations in temperature of workpiece; Said armoured thermocouple diameter range is 1-3mm.
Preferably, described mould temperature thermocouple according to mold shape, is distributed in said die and the said punch, and number is not less than 2; Described workpiece temperature thermocouple according to the workpiece shape, is distributed in the one or both ends of die or punch, and number is not less than 2; Said multichannel temperature recorder, the data that acquisition and recording workpiece temperature thermocouple and mould temperature thermocouple obtain, collection period is 0.1-1s.
Cooling fluid is fed system in 3-5 minute before drop stamping begins, guarantee the flow stability of cooling fluid in the built-in cooling system of mould.
The used channel temperature acquisition system debugging of said temperature recording unit was accomplished before drop stamping began.
Drop stamping is also transferred to fast to intend with steel abundant austenitizing in heating furnace and is declared in the hot stamping die that carries temp measuring system of patent; The quick matched moulds pressurize of press is shaped; The built-in cooling system of mould reduces mold temperature through cooling fluid; And mould makes plate quench through the heat exchange with plate, reaches the purpose of sheet forming and quenching.
Descending fast at press, punch contact plate rises, workpiece temperature thermocouple opening entry plate variations in temperature and with transfer of data to said temperature recording unit; Punch continues descending, and when sheet metal deformation arrived to a certain degree, the built-in mould temperature thermocouple of punch began to contact with plate, and said mould temperature thermocouple is measured and obtaining transfer of data is arrived said temperature recording unit.
Beneficial effect of the present invention:
The hot stamping die that carries temp measuring system provided by the invention, compare with existing hot stamping die and to have the following advantages:
Relatively the mechanical property of the workpiece that can only produce through detection of existing mold, dissect the pattern that workpiece quality is judged in its metallographic structure of job analysis, can be directly judge and reject substandard product from temperature curve;
2. can carry out process monitoring to the special process drop stamping, realize the complete period monitoring temperature, avoid long period that the workpiece complete examination causes and expensive, and the workpiece quality that the test samples deficiency causes be defective.
3. but the variations in temperature of mould and workpiece in the built-in temp measuring system surveying record of the mould drop stamping process is obtained direct heat Sheet Metal Forming Technology parameter, formulates production technology when can be used for preproduction-type test and product pilot scale.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the hot stamping die explosive view that carries temp measuring system involved in the present invention;
Fig. 2 is die and a workpiece temperature thermocouple sketch map involved in the present invention;
Fig. 3 is a punch installing plate sketch map involved in the present invention;
Fig. 4 is a punch sketch map involved in the present invention
Fig. 5 is punch installing plate and a punch front schematic view involved in the present invention;
Fig. 6 is punch installing plate and a punch schematic rear view involved in the present invention.
Among the figure: 1, punch installing plate; 2, workpiece temperature thermocouple; 3, punch interflow groove; 4, cooling pipe; 5, mould temperature thermocouple; 6, longitudinal bracing alignment pin; 7, die water inlet; 8 die installing plates; 9, guide bracket; 10, die; 11, self-lubricating guide block; 12, punch; 13, guide plate; 14, punch water inlet; 15, located lateral pin; 16, seal groove; 17, punch splitter box; 18, punch delivery port.
The specific embodiment
Existing with reference to accompanying drawing 1-6, in conjunction with specific embodiment the present invention is done further description:
The hot stamping die that carries temp measuring system of the present invention is an example with U type spare, and this mould comprises die installing plate 8 and die 10; Punch installing plate 1 and punch 12, punch 12 and the die 10 interior staggered cooling pipes 4 of laying, the hexagonal socket head plug sealing is used in cooling pipe 4 ends; Cooling pipe 4 is connected with splitter box, and splitter box one end links to each other with cooling pipe, and the other end links to each other with water inlet; Through seal groove cooling medium is sealed, form unobstructed cooling circuit.
Said punch 12 is fixed on the punch installing plate 1, and punch installing plate 1 one ends offer punch water inlet 14, and other end rightabout is offered punch delivery port 18; Punch water inlet 14 links to each other with cooling pipe 4 through punch splitter box 17; Cooling pipe 4 meets at punch interflow groove 3 at the other end, and punch interflow groove 3 links to each other with punch delivery port 18, and cooling water is through advancing the punch water inlet 14 on the punch installing plate 1; Get into cooling pipe 4 through punch splitter box 17; Collaborate groove 3 through meeting at punch after absorbing mold heat, flow out moulds, accomplish a cool cycles from punch delivery port 18.
Said die 11 is fixed on the die installing plate 9, and the flow of cooling water cyclic process is identical with punch.
And punch water inlet 14 and die water inlet lay respectively at the rightabout of die 10 and punch 12, make the flow of cooling water of die and punch in the opposite direction.
Described supporting and positioning device is distributed in die 10 surfaces, is made up of longitudinal bracing alignment pin 6 and located lateral pin 15, and 6 and 15 bottoms are spring structure, accomplishes through contraction bands untie-sell of spring and supports and contraction, avoids steel plate directly to contact die 12; Longitudinal bracing alignment pin 6 tops are ledge structure, and steel plate places on the step, through the step wall it are vertically positioned, and simultaneously located lateral pin 15 positions its lateral length.
The built-in temp measuring system of said mould is made up of mould temperature thermocouple 5 and workpiece temperature thermocouple 2; Said thermocouple is armoured thermocouple; The mould temperature thermocouple is pre-buried parallel with profile with punch and apart from profile 1-3mm place in die; The thermocouple measurement end contacts with mould, reflects the plate temperature indirectly through the Measurement die temperature; Said workpiece temperature thermocouple 2 is a spring press fixing type armoured thermocouple; Vertical profile is pre-buried in punch 12, and the thermometric end exceeds punch 12 profile 1-2mm, when 12 pairs of workpiece of punch are exerted pressure; Workpiece temperature thermocouple 2 closely contacts with workpiece for measurement through the spring contractile function, records workpiece temperature.
In addition, for U type spare hot stamping die, mould temperature thermocouple 5 is distributed in the end opposite of an end and the punch 12 of die 10 respectively.
With after cooling water channel is connected, the cooling pipe of mould inside can form by the cool cycles path of water inlet to delivery port by the mode that is threaded for die water inlet, punch water inlet 14, die delivery port and punch delivery port 18.During mold work; Punch 12 is descending fast as for the steel plate contact, and workpiece temperature thermocouple 2 begins thermometrics under pressure, and the mould inside cooling system is taken away the heat of mould through the circulation of cooling medium in the cooling pipe simultaneously; It is partially-formed that punch 12 comes downwards to steel plate; Die 10 and punch 12 mold temperature thermocouples 5 beginning thermometrics, to die 10 and punch 12 complete matched moulds, the variations in temperature of workpiece temperature thermocouple 2 and 5 complete period of mould temperature thermocouple control survey record mould and steel plate.
The present invention thinks that with current the most practical and most preferred embodiment is described; But it is understandable that the present invention is not limited to disclosed embodiment; On the contrary, it is to be used for covering multiple improvement and suitable structure or method within spirit and the scope of accessory claim of the present invention.
Claims (2)
1. hot stamping die that carries temp measuring system; Comprise die, punch, plate supporting and positioning device, the built-in cooling system of mould, the built-in temp measuring system of mould and external temperature tape deck; It is characterized in that: said plate supporting and positioning device is made up of longitudinal bracing alignment pin and located lateral pin; The built-in cooling system of said mould is laid on said die and punch is inner; Said die and said punch all have inlet channel and outlet conduit to be connected with the built-in cooling system of said mould; The built-in temp measuring system of said mould is pre-buried in said die and convex mould surface or body, is connected with said external temperature tape deck, measures and write down the temperature of workpiece or mould.
2. a kind of hot stamping die that carries temp measuring system according to claim 1 is characterized in that: said plate positioner is made up of 4 longitudinal bracing alignment pins and 2 located lateral pins; Said longitudinal bracing alignment pin top is a ledge structure, and the bottom is a spring structure; Said ledge structure avoids plate directly to contact with mould at plate pressurized front end panel material, locatees the plate lengthwise position simultaneously, and said spring structure shrinks under the punch effect, and alignment pin descends thereupon, guarantees that plate is shaped when matched moulds; Said located lateral pin top is fixed by ring flange, and the bottom is a spring structure, fixedly the plate lateral attitude.
3. a kind of hot stamping die that carries temp measuring system according to claim 1; It is characterized in that: said built-in cooling system is according to workpiece shape and cooling requirement; Be laid on mould inside with tube shaped arranged side by side; The workpiece pressurized in mould that in the drop stamping process, is in austenitizing is shaped, and said cooling system reaches the effect that workpiece is quenched through cooling medium reduction mold temperature simultaneously, and said cooling pipe is staggered to be laid in said die and the said punch.
4. a kind of hot stamping die that carries temp measuring system according to claim 1; It is characterized in that: said temp measuring system is divided into mould temperature thermocouple and workpiece temperature thermocouple; Said mould temperature thermocouple is an armoured thermocouple; Parallel pre-buried under die and punch profile, apart from profile 1mm-3mm place, the thermocouple measurement end contacts with mould; Said workpiece temperature thermocouple is that spring presses solidly armoured thermocouple, and is pre-buried in punch, and the thermocouple measurement end stretches out punch profile surface 1-2mm, through spring compression, thermocouple end and surface of the work is close to.
5. a kind of hot stamping die that carries temp measuring system according to claim 4 is characterized in that: described mould temperature thermocouple, according to mold shape, be distributed in said die and the said punch, and number is not less than 2.
6. a kind of hot stamping die that carries temp measuring system according to claim 4 is characterized in that: described workpiece temperature thermocouple, according to the workpiece shape, be distributed in the one or both ends of die or punch, and number is not less than 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120036912 CN202137255U (en) | 2011-02-12 | 2011-02-12 | Hot stamping die with temperature measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120036912 CN202137255U (en) | 2011-02-12 | 2011-02-12 | Hot stamping die with temperature measuring system |
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| Publication Number | Publication Date |
|---|---|
| CN202137255U true CN202137255U (en) | 2012-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201120036912 Expired - Lifetime CN202137255U (en) | 2011-02-12 | 2011-02-12 | Hot stamping die with temperature measuring system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172719A (en) * | 2011-02-12 | 2011-09-07 | 机械科学研究总院先进制造技术研究中心 | Hot stamping mould with temperature measuring system |
| CN103394557A (en) * | 2013-08-02 | 2013-11-20 | 上海交通大学 | U-shaped bent piece die device for Q&P one-step hot stamping forming |
| CN103639297A (en) * | 2013-11-28 | 2014-03-19 | 江西洪都航空工业集团有限责任公司 | Hot pressing sinking die |
| CN103949552A (en) * | 2014-04-26 | 2014-07-30 | 吉林大学 | Optimum temperature control device for thermoforming of high-strength steel |
| CN104001787A (en) * | 2013-12-31 | 2014-08-27 | 昆山御广峰机械有限公司 | Novel precision stamping die |
| CN103658408B (en) * | 2013-12-21 | 2016-03-02 | 吉林大学 | A kind of gas assists quick matched moulds super-high strength steel hot mould |
| CN107552657A (en) * | 2017-10-16 | 2018-01-09 | 黄冈职业技术学院 | A kind of cooling system of hot stamping die |
| CN109807274A (en) * | 2019-03-15 | 2019-05-28 | 王忠祥 | A kind of water hardening press machine |
| CN111842597A (en) * | 2020-07-14 | 2020-10-30 | 永胜机械工业（昆山）有限公司 | Titanium material and special metal pipe orifice extension forming equipment and method |
-
2011
- 2011-02-12 CN CN 201120036912 patent/CN202137255U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172719A (en) * | 2011-02-12 | 2011-09-07 | 机械科学研究总院先进制造技术研究中心 | Hot stamping mould with temperature measuring system |
| CN103394557A (en) * | 2013-08-02 | 2013-11-20 | 上海交通大学 | U-shaped bent piece die device for Q&P one-step hot stamping forming |
| CN103394557B (en) * | 2013-08-02 | 2015-05-20 | 上海交通大学 | U-shaped bent piece die device for Q&P one-step hot stamping forming |
| CN103639297A (en) * | 2013-11-28 | 2014-03-19 | 江西洪都航空工业集团有限责任公司 | Hot pressing sinking die |
| CN103658408B (en) * | 2013-12-21 | 2016-03-02 | 吉林大学 | A kind of gas assists quick matched moulds super-high strength steel hot mould |
| CN104001787A (en) * | 2013-12-31 | 2014-08-27 | 昆山御广峰机械有限公司 | Novel precision stamping die |
| CN103949552A (en) * | 2014-04-26 | 2014-07-30 | 吉林大学 | Optimum temperature control device for thermoforming of high-strength steel |
| CN103949552B (en) * | 2014-04-26 | 2015-04-29 | 吉林大学 | Optimum temperature control device for thermoforming of high-strength steel |
| CN107552657A (en) * | 2017-10-16 | 2018-01-09 | 黄冈职业技术学院 | A kind of cooling system of hot stamping die |
| CN109807274A (en) * | 2019-03-15 | 2019-05-28 | 王忠祥 | A kind of water hardening press machine |
| CN111842597A (en) * | 2020-07-14 | 2020-10-30 | 永胜机械工业（昆山）有限公司 | Titanium material and special metal pipe orifice extension forming equipment and method |
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| CX01 | Expiry of patent term |
Granted publication date: 20120208 |