CN209439265U - A kind of drop stamping production line using heating in vacuum - Google Patents
A kind of drop stamping production line using heating in vacuum Download PDFInfo
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- CN209439265U CN209439265U CN201821888659.5U CN201821888659U CN209439265U CN 209439265 U CN209439265 U CN 209439265U CN 201821888659 U CN201821888659 U CN 201821888659U CN 209439265 U CN209439265 U CN 209439265U
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Abstract
The utility model discloses a kind of drop stamping production lines using heating in vacuum.The drop stamping production line using heating in vacuum includes de-stacking device, is used to say good-bye to blank；Vacuum furnace, for the vacuum furnace for heating to the blank after the completion of saying good-bye, the heating in vacuum furnace interior can be in vacuum state, and the heating in vacuum furnace interior can be passed through inert gas；Aftertreatment device is used to carry out subsequent processing to the blank completed by the heating in vacuum stove heating.Technical solution used by the utility model, having many advantages, such as to prevent blank, its surface occurs oxidation, saves ball blast process, improves production efficiency and product quality during heating.
Description
Technical field
The utility model relates to drop stamping field, a kind of particularly drop stamping production line using heating in vacuum.
Background technique
It is obtained for the coated steel sheet of 22MnB5 steel or naked steel plate by drop stamping currently, generalling use material in automobile industry
High-intensitive components on to vehicle body, naked steel plate obtain relatively broad application because its price is relatively cheap.Due to naked steel plate
Oxide skin can be generated after heating, oxide skin is mainly made of ferrous oxide, ferroso-ferric oxide, di-iron trioxide, and matter is crisp, does not have
Extensibility, under mechanical action and under hot-working effect, it is easy to generate cracking and be detached from, hardness is higher than mold, therefore naked steel
For plate when forming on mold, oxide skin thereon will increase the friction between steel plate and mold, increase the abrasion of mold, reduce mould
The service life of tool；The generation of simultaneous oxidation skin can reduce the processability of steel plate, and generation is pulled；And the thermal conductivity of oxide skin
It is very low, seriously affect the heat transfer between steel plate and mold.Therefore, ball blast scale removal is usually required after naked steel plate forming.It throws
Ball is the steel sand stream bump workpiece surface scale removal using high-speed motion, and continuous mechanical shock easily generates part
Unacceptable deformation, not can guarantee dimensional accuracy, the part such as 1.0mm relatively thin to wall thickness and hereinafter, cause deformation possibility
Property it is very big, part especially not good enough to rigidity itself for example knocker absolutely cause to deform.In addition ball blast can generate dust
Effect on environment is also larger.
For above situation, thermoforming production line on the market mainly uses the producer for inhibiting naked steel plate oxidation at present
Method, this method is to be passed through inert gas in radiation furnace to reduce oxygen content, but since industrial furnace cavity is very big, gas
It is very long that atmosphere establishes the period, and can be opened and closed fire door online, and the oxygen content drop in furnace gas is low less than unlimited, and low-oxygen environment can only slow down
The oxidation rate of naked steel plate at high temperature, can not prevent the generation of oxide skin, especially when furnace gas mixing is non-uniform,
Naked steel plate oxidation can aggravate, and the surface quality after coated steel sheet thermoforming is not achieved in naked steel plate hot surface quality after molding always
Effect, therefore there are also the ball blast oil spout processes of one of scale removal after naked steel plate thermoforming.
Utility model content
In order to overcome the defects of the prior art, the utility model embodiment provides a kind of hot stamping method and using true
At least one of the drop stamping production line of sky heating, be used to solve the above problems.
The embodiment of the present application discloses: a kind of hot stamping method, comprising the following steps:
It says good-bye to blank；
Blank after the completion of saying good-bye is heated in vacuum furnace, during heating, is made in vacuum furnace
Portion is in vacuum state, and heats the blank with the speed between 5-10 DEG C/s；
When the temperature of blank is between 900-980 DEG C, inert gas is blown into heating in vacuum furnace interior；
When the atmospheric pressure value of the environment locating for the blank is greater than or equal to atmospheric value, blank is taken out from vacuum furnace；
Subsequent processing is carried out to the blank of taking-up and forms materials and parts.
Preferably, in step " saying good-bye to blank " and step " to blank after the completion of saying good-bye in vacuum furnace
It is heated, during heating, so that heating in vacuum furnace interior is in vacuum state, and add with the speed between 5-10 DEG C/s
It include: to be preheated to the blank after the completion of saying good-bye between hot blank ".
Preferably, step " preheating to the blank after the completion of saying good-bye " includes: the heating speed to be greater than 100 DEG C/s
When to blank heating between 500-550 DEG C, stop preheating the blank.
Preferably, step " blank after the completion of saying good-bye is heated in vacuum furnace, during heating,
So that heating in vacuum furnace interior is in vacuum state, and the blank heated with the speed between 5-10 DEG C/s " in, vacuum furnace
Internal vacuum degree is between 0.1-100Pa.
Preferably, " when the temperature of blank is between 900-980 DEG C, being blown into inertia to heating in vacuum furnace interior in step
In gas ", when the temperature of blank is at 930 DEG C, inert gas is blown into heating in vacuum furnace interior.
The embodiment of the present application also discloses a kind of drop stamping production line using heating in vacuum, comprising:
De-stacking device is used to say good-bye to blank；
Vacuum furnace, the vacuum furnace is for heating the blank after the completion of saying good-bye, the heating in vacuum
Furnace interior can be in vacuum state, and the heating in vacuum furnace interior can be passed through inert gas；
Aftertreatment device is used to carry out subsequent processing to the blank completed by the heating in vacuum stove heating.
Preferably, the vacuum furnace includes vacuum chamber, heating system and vacuum degree control system, the vacuum chamber is used
In placing blank, the heating system is for heating the blank, and the vacuum degree control system is for controlling the vacuum chamber
Vacuum degree.
Preferably, internal vacuum degree is between 0.1-100Pa when the vacuum furnace heats blank.
Using the drop stamping production line of heating in vacuum further include preheating system preferably, described, is used for having said good-bye
Blank after is preheated, and the blank after preheating is heated via the vacuum furnace again.
Preferably, the preheating system is preheated between 500-550 DEG C blank.
Preferably, the preheating system is greater than 100 DEG C/s to the heating speed of blank.
Preferably, the preheating system includes pre-add hot-zone, the second feeding device, the second discharging device, third pan feeding
Device, wherein second feeding device is for receiving the blank from the de-stacking device and blank being delivered to the pre-add
Hot-zone, second discharging device are used to export the blank after the completion of preheating from the pre-add hot-zone, and the third enters
Material device is used to the blank on second discharging device being put into the vacuum furnace.
Preferably, the pre-add hot-zone includes induction heater.
The beneficial effects of the utility model are as follows:
1. blank, during by heating in vacuum stove heating, vacuum furnace is in the vacuum shape between 0.1-100Pa
State, realizes blank and is heated in the environment of complete anaerobic and be increased to assigned temperature, avoids blank in temperature-rise period by oxygen
Change；
2. blank heats in vacuum furnace, it is blown into inert gas to vacuum furnace inner wall, adds vacuum
Air pressure in hot stove is greater than or equal to atmospheric pressure, can prevent when vacuum furnace is opened, and outside air largely enters inside it,
The environment of blank and heating in vacuum furnace interior is impacted；
3. the blank before pair being put into vacuum furnace carries out being preheated to 500- with the heating speed greater than 100 DEG C/s
550 DEG C, heating time of the blank in vacuum furnace had both been shortened, production efficiency has been improved, the surface of blank is not caused to send out yet
Raw oxidation reaction, product quality are protected；
4. since its surface does not generate oxide skin to blank after heating, greatly reduce mould in forming process
Have the phenomenon that plucking, improves die life, product after molding also saves ball blast process, avoids product during ball blast
The phenomenon that deformation or cracking, further increase product quality.
For the above and other objects, features and advantages of the utility model can be clearer and more comprehensible, preferable reality is cited below particularly
Example is applied, and cooperates institute's accompanying drawings, is described in detail below.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is described in the utility model embodiment using the structural schematic diagram of the drop stamping production line of heating in vacuum.
The appended drawing reference of the figures above: 10- hot stamping device, 20- vacuum furnace, the first feeding device of 30-, 40-
One discharging device, 41- discharging manipulator, 42- conveyer, 50- de-stacking device, 51- de-stacking trolley, 52- de-stacking manipulator, 60-
Preheating system, 61- pre-add hot-zone, the second feeding device of 62-, the second discharging device of 63-, 64- third feeding device.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, including: using the drop stamping production line of heating in vacuum described in the utility model embodiment
De-stacking device 50 is used to say good-bye to blank；
Vacuum furnace 20, the vacuum furnace 20 is for heating the blank after the completion of saying good-bye, the vacuum
It can be in vacuum state inside heating furnace 20, inert gas can be passed through inside the vacuum furnace 20；
Aftertreatment device is used to carry out subsequent processing to the blank completed by the vacuum furnace 20 heating.
Specifically, the vacuum furnace 20 includes vacuum chamber, heating system and vacuum degree control system, the vacuum chamber
For placing blank, the heating system is for heating the blank, and the vacuum degree control system is for controlling the vacuum
The vacuum degree of room；The aftertreatment device includes for blank to be shaped to the hot stamping device 10 of materials and parts, is used for from described
Blank is removed and placed in the first feeding device 30 of the hot stamping device 10 in vacuum furnace 20 and is used for from described
Take the first discharging device 40 of the materials and parts after having formed in hot stamping device 10 away.Furthermore, it is understood that first feeding device
30 can be feeding robot or feeding manipulator, and first discharging device 40 includes discharging manipulator 41 and conveyer 42,
The de-stacking device 50 is including holding the de-stacking trolley 51 of blank and for saying good-bye from de-stacking trolley 51, the de-stacking of feeding is mechanical
Hand 52.
At work, de-stacking manipulator 52 is placed into the vacuum of vacuum furnace 20 from feeding on de-stacking trolley 51, blank
In room, then vacuum chamber is closed；Before starting to the indoor blank heating of vacuum, the vacuum-control(led) system is first by vacuum chamber
It is evacuated to certain vacuum degree, preferably, the vacuum degree is between 0.1-100Pa, in the heating process of blank, vacuum chamber
Vacuum degree be always held between 0.1-100Pa, make the indoor blank of vacuum heat temperature raising in the environment of complete anaerobic, keep away
Exempt from blank to be oxidized in temperature-rise period；After blank is warming up to assigned temperature, the vacuum-control(led) system is blown into vacuum chamber
Enter gas, preferably inert gas, so that the air pressure of vacuum chamber is greater than or equal to atmospheric pressure, avoid vacuum chamber opening so as to the first pan feeding
From vacuum furnace 20 when feeding, outside air largely enters in vacuum chamber device 30；First feeding device 30 adds from vacuum
It is put into rapidly in hot stamping device 10 after taking out blank in hot stove 20 and is formed, quenched, discharging manipulator 41 is from drop stamping
It takes product after molding in device 10 away, and is put into conveyer 42, product is delivered to designated position with person who happens to be on hand for an errand by conveyer 42
Work stacking.
By above structure, the drop stamping production line described in the utility model using heating in vacuum passes through vacuum control
The indoor vacuum degree of vacuum before blank heating and after heating is adjusted in system, realizes blank in the environment of complete anaerobic
In be heated and be increased to assigned temperature, avoid blank from being oxidized in temperature-rise period, meanwhile, take blank away opening vacuum chamber
When, since the air pressure of inert gas in vacuum chamber is greater than or equal to atmospheric pressure, it can prevent outside air from largely entering in vacuum chamber
The environment of blank and vacuum chamber is impacted.Added via described in the utility model using the drop stamping production line of heating in vacuum
The blank of heat, surface do not have oxide skin, therefore, the phenomenon that greatly reducing mold plucking in forming process, improves mold
Service life, in addition, subsequent ball blast process is also saved because surface does not have oxide skin by the molding product of the production line, meanwhile,
The problems such as also avoiding deformation, the cracking that product generates during ball blast, improves the quality of product.
Preferably, the vacuum furnace 20 is in substantially rectangular parallelepiped structure, the vacuum chamber includes multiple along described rectangular
The vacuum layer that the length direction of body is stacked, i.e., the bottom of a upper vacuum layer are the top of next vacuum layer.Each institute
State vacuum layer be individually equipped with for locking the vacuum layer with ensure vacuum layer closure air-tightness pressing device and be used for by
The pressing device is promoted to open the hoisting mechanism of the vacuum layer, that is to say, that the opening and closing of each layer of vacuum layer are equal
It is independent operation, does not influence the state of other vacuum layers, in order to avoid influencing the air-tightness of other vacuum layers, and then influences its building ring
Border.The heating system includes the heater and temperature inductor being arranged in each vacuum layer, i.e., the described heating system
Including multiple heaters and multiple temperature inductors, heater is to heat blank, and temperature inductor is for incuding base
The temperature of material, judges whether blank is heated to assigned temperature.
Using the above structure, vacuum chamber is divided into the true of multiple independent works by vacuum furnace 20 described in the present embodiment
Dead level reduces the heating space of single blank, and the atmosphere for being conducive to shorten vacuum chamber is established the period, improves production efficiency.
Preferably, the drop stamping production line described in the present embodiment using heating in vacuum further includes preheating system 60,
It is used to preheat the blank for completion of saying good-bye, and the blank after preheating is added via the vacuum furnace 20 again
Heat.Further, the preheating system 60 is preheated between 500-550 DEG C blank, preferably, the preheating system
60 heat blank with the heating speed greater than 100 DEG C/s.Specifically, the preheating system 60 includes pre-add hot-zone
61, for receiving the blank from the de-stacking device 50 and blank being delivered to the second feeding device of the pre-add hot-zone 61
62, for by the second discharging device 63 for being exported from the pre-add hot-zone 61 of blank after the completion of preheating and be used for by
Blank on second discharging device 63 is put into the third feeding device 64 of the vacuum furnace 20.At work, de-stacking
Blank is put into the second feeding device 62 by manipulator 52 after grabbing blank on de-stacking trolley 51, and the second feeding device 62 is by base
Material, which is delivered in pre-add hot-zone 61, to be heated, preferably, the pre-add hot-zone 61 includes the sense for carrying out induction heating to blank
Heater is answered, the induction heater heats blank with the heating speed greater than 100 DEG C/s, when blank is heated to
It after between 500-550 DEG C, is exported by the second discharging device 63, blank is sent into vacuum furnace 20 by third feeding device 64.
Using the above structure, it is placed into again after blank is extremely fast heated to 500-550 DEG C in preheating system 60 true
It is heated in empty heating furnace 20, substantially reduces the heating time that blank rises to assigned temperature in vacuum furnace 20, improve
Production efficiency, meanwhile, when blank is preheated system 60 and is heated to 500-550 DEG C, blank will not occur with the oxygen in air
Oxidation reaction, the i.e. surface of blank will not generate oxide skin, and therefore, the quality of blank is ensured.
The utility model additionally provides a kind of hot stamping method, comprising the following steps:
It says good-bye to blank；
Blank after the completion of saying good-bye is heated in vacuum furnace 20, the specific preferred radiant heating of heating method,
During heating, make in vacuum state inside vacuum furnace 20, and the base is heated with the speed between 5-10 DEG C/s
Material；
When the temperature of blank is between 900-980 DEG C, to vacuum furnace 20 inside be blown into inert gas；
When the atmospheric pressure value of the environment locating for the blank is greater than or equal to atmospheric value, base is taken out from vacuum furnace 20
Material；
Subsequent processing is carried out to the blank of taking-up and forms materials and parts.
Preferably, in step " saying good-bye to blank " and step " to blank after the completion of saying good-bye in vacuum furnace
It is heated, during heating, so that heating in vacuum furnace interior is in vacuum state, and add with the speed between 5-10 DEG C/s
It include: to be preheated to the blank after the completion of saying good-bye between hot blank ".Further, reach 500- in blank temperature
When between 550 DEG C, stop preheating the blank, specifically, blank is by with adding greater than 100 DEG C/s in preheating process
Thermal velocity induction heating is between 500-550 DEG C, that is to say, that the preheating time is very of short duration.This temperature is conducive to contract
Time required for short blank rises to 900 DEG C or more in vacuum furnace 20, make heating of the blank in vacuum furnace 20
Cycle time also avoided blank from causing its surface to generate by the dioxygen oxidation in air in preheating to only 40-180 seconds
Oxide skin ensure that the quality of product.
Preferably, step " blank after the completion of saying good-bye is heated in vacuum furnace, during heating,
So that heating in vacuum furnace interior is in vacuum state, and the blank heated with the speed between 5-10 DEG C/s " in, vacuum furnace
Internal vacuum degree between 0.1-100Pa, be heated up in the environment of complete anaerobic with the blank in fidelity empty room to
900 DEG C or more, prevent blank surface from generating oxide skin.
Preferably, " when the temperature of blank is between 900-980 DEG C, being blown into inertia to heating in vacuum furnace interior in step
In gas ", when the temperature of blank is at 930 DEG C, inert gas, temperature of the blank at 930 DEG C are blown into heating in vacuum furnace interior
Under come out of the stove and operate into mold the materials and parts for carrying out thermoforming, obtaining after quenching, mechanical performance is excellent.
Hot stamping method described in the utility model embodiment has the advantage that
1. blank by vacuum furnace 20 during being heated, vacuum furnace 20 is in true between 0.1-100Pa
Dummy status, realizes blank and is heated in the environment of complete anaerobic and be increased to assigned temperature, avoids blank in temperature-rise period
It is oxidized；
2. blank heats in vacuum furnace 20, it is blown into inert gas to 20 inner wall of vacuum furnace, is made true
Air pressure in empty heating furnace 20 is greater than or equal to atmospheric pressure, can prevent when vacuum furnace 20 is opened, outside air largely into
Enter inside it, the environment inside blank and vacuum furnace 20 is impacted；
3. the blank before pair being put into vacuum furnace 20 carries out being preheated to 500- with the heating speed greater than 100 DEG C/s
550 DEG C, heating time of the blank in vacuum furnace 20 had both been shortened, production efficiency has been improved, does not also cause the surface of blank
Oxidation reaction occurs, product quality is protected；
4. since its surface does not generate oxide skin to blank after heating, greatly reduce mould in forming process
Have the phenomenon that plucking, improves die life, product after molding also saves ball blast process, avoids product during ball blast
The phenomenon that deformation or cracking, further increase product quality.
Specific embodiment is applied in the utility model to be expounded the principles of the present invention and embodiment, with
The explanation of upper embodiment is merely used to help understand the method and its core concept of the utility model；Meanwhile for this field
Those skilled in the art, based on the idea of the present invention, there will be changes in the specific implementation manner and application range, comprehensive
Upper described, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. a kind of drop stamping production line using heating in vacuum characterized by comprising
De-stacking device is used to say good-bye to blank；
Vacuum furnace, the vacuum furnace is for heating the blank after the completion of saying good-bye, in the vacuum furnace
Portion can be in vacuum state, and the heating in vacuum furnace interior can be passed through inert gas；
Aftertreatment device is used to carry out subsequent processing to the blank completed by the heating in vacuum stove heating.
2. the drop stamping production line according to claim 1 using heating in vacuum, which is characterized in that the vacuum furnace
Including vacuum chamber, heating system and vacuum degree control system, the vacuum chamber is for placing blank, and the heating system is for adding
The heat blank, the vacuum degree control system are used to control the vacuum degree of the vacuum chamber.
3. the drop stamping production line according to claim 1 using heating in vacuum, which is characterized in that the vacuum furnace
When heating to blank, internal vacuum degree is between 0.1-100Pa.
4. the drop stamping production line according to claim 1 using heating in vacuum, which is characterized in that described to be added using vacuum
The drop stamping production line of heat further includes preheating system, is used to preheat the blank after the completion of saying good-bye, after preheating
Blank heated again via the vacuum furnace.
5. the drop stamping production line according to claim 4 using heating in vacuum, which is characterized in that the preheating system
Blank is preheated between 500-550 DEG C.
6. the drop stamping production line according to claim 5 using heating in vacuum, which is characterized in that the preheating system
100 DEG C/s is greater than to the heating speed of blank.
7. the drop stamping production line according to claim 4 using heating in vacuum, which is characterized in that the preheating system
Including pre-add hot-zone, the second feeding device, the second discharging device, third feeding device, wherein second feeding device is used for
It receives the blank from the de-stacking device and blank is delivered to the pre-add hot-zone, second discharging device is used for will be pre-
Blank after the completion of heating is exported from the pre-add hot-zone, and the third feeding device is used for second discharging device
Blank be put into the vacuum furnace.
8. the drop stamping production line according to claim 7 using heating in vacuum, which is characterized in that the pre-add hot-zone packet
Include induction heater.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821888659.5U CN209439265U (en) | 2018-11-16 | 2018-11-16 | A kind of drop stamping production line using heating in vacuum |
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| CN201821888659.5U CN209439265U (en) | 2018-11-16 | 2018-11-16 | A kind of drop stamping production line using heating in vacuum |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365604A (en) * | 2018-11-16 | 2019-02-22 | 苏州普热斯勒先进成型技术有限公司 | A kind of hot stamping method and the drop stamping production line using heating in vacuum |
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2018
- 2018-11-16 CN CN201821888659.5U patent/CN209439265U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365604A (en) * | 2018-11-16 | 2019-02-22 | 苏州普热斯勒先进成型技术有限公司 | A kind of hot stamping method and the drop stamping production line using heating in vacuum |
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