CN108704968A - A kind of drop stamping technique and thermoforming production line - Google Patents
A kind of drop stamping technique and thermoforming production line Download PDFInfo
- Publication number
- CN108704968A CN108704968A CN201810551004.7A CN201810551004A CN108704968A CN 108704968 A CN108704968 A CN 108704968A CN 201810551004 A CN201810551004 A CN 201810551004A CN 108704968 A CN108704968 A CN 108704968A
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The present invention provides a kind of drop stamping technique and thermoforming production lines, this thermoforming production line includes furnace box, one end of furnace box is equipped with feed inlet, the other end is equipped with discharge port, furnace box is divided into cold punching pressure chamber by thermal insulation board successively along workpiece moving direction, preheating chamber, main heating room, moist closet, molding room, be provided on thermal insulation board for workpiece by cross part hole, it is hinged with from closure door in crossing at part hole for preheating chamber, bottom is equipped with ceramic conveyor roll in furnace box, preheating chamber, main heating room, electric heating wire is equipped in moist closet, press and cold punching die are equipped in cold stamping room, press and molding die are equipped in molding room, molding room both sides are respectively and fixedly provided with workpiece transfer mechanism.Workpiece, still in the furnace box of high temperature, since moist closet and molding room are all high-temperature low-oxygen states, can effectively prevent workpiece fast cooling in transfer process, while being also prevented from workpiece and being exposed to extraneous and aoxidize.
Description
Technical field
The invention belongs to drop stamping technical field, it is related to a kind of drop stamping technique and thermoforming production line.
Background technology
Heat stamping and shaping (Hot stamping/Hot press forming) is also referred to as punching press hardening (Press
Hardening) it is the new technology dedicated for automotive high intensity steel plate punched molded part occurred in recent years, and realizes
One of the key technology technique of automotive light weight technology production.
Reduce oil consumption, the security performance that reduces discharge and improve automobile has become the concern of current auto manufacturing and urgently
The focal issue of solution, it is the effective means for realizing automotive energy-saving emission-reducing to mitigate car body weight.Using ultrahigh-strength steel plates come generation
It is the most effective approach of automobile lightweight for the low-intensity steel such as mild steel largely used originally.
However, high intensity also brings new difficulty to automobile making.High-strength steel sheet is with yield strength and tensile strength
Raising, punch forming performance declines, and various forming defects highlight, and not only need very big forming force, but also spring back special
It is not serious, it is difficult to ensure that the dimensional accuracy of product.The intensity of steel plate is higher, and molding difficulty is bigger, when intensity be more than 1000MPa with
When upper, for the more complicated part of some geometries, can not almost it be molded using conventional cold punching technology.
1500MPa may be up to using stamping parts intensity made from heat stamping and shaping technology, and be molded almost do not have at high temperature
There is rebound, there is outstanding advantages of high formed precision, good moldability, therefore cause the common concern of industry and rapidly become automobile
Hot technology in manufacturing field, be widely used in the safety members such as door anti-collision joist, front/rear collision bumper and A columns, B columns, C columns, in
The production of the body constructions part such as channel.
Hot press-formed process is that boracic steel plate is heated to austenitic temperature section (900 DEG C or more), is then delivered to
On press, punching press is carried out when steel plate still has ductility.Martensitic structure is obtained after quenched, and there is perfect appearance and is up to
1500MPa tensile strength finished products.Hot forming steel is the steel plate of intensity highest level in automobile steel, is suitably applied in automobile anti-collision
Hit the automobile panel parts such as reinforcing beam, skeletal support beam.And in this mode of production, de-stacking, feeding, blanking, moves material, punching press at positioning
The help of automation is all be unable to do without etc. a series of production processes.When being transferred on press from heating furnace, mechanical arm needs certain
Time captures and puts down workpiece, and in this procedure, in air, temperature declines soon for workpiece exposure this period, and
It is easy oxidation, so must assure that steel plate is transferred in mold as quickly as possible, is on the one hand to prevent the steel under high temperature
Plate aoxidizes, and is on the other hand in order to ensure steel plate is remained at the time of molding at higher temperature, with good plasticity.It is existing
Workpiece transfer mode be after the completion of heating, workpiece sends out heating furnace by conveying roller, then by mechanical arm gripping to stamping die
On tool, and workpiece is easy oxidation and temperature reduction in transfer process.
Invention content
The purpose of the present invention is there is the above problem in view of the prior art, it is proposed that a kind of drop stamping technique and thermoforming
Production line is equipped with moist closet, makes workpiece in waiting for gripping, slows down rate of temperature fall, workpiece can also keep high temperature until punching press
State.
Object of the invention can be realized by the following technical scheme：A kind of drop stamping technique, which is characterized in that specific step
It is rapid as follows：
(a), blanking：Plate stamping is gone out by punching machine the blank of required outer profile；
(b), cold stamping is preforming：Blank is put on the cold punching die in cold punching pressure chamber, passes through spray after the completion of punching press
Semi-finished product are blown on ceramic conveyor roll by air gun；
(c), it preheats：Semi-finished product enter preheating chamber along ceramic conveyor roll, continue after being heated to 500 DEG C~600 DEG C
It is fed forward；
(d), austenitizing：Semi-finished product enter main heating room along ceramic conveyor roll, are heated to 900 DEG C~1000 DEG C,
Keep the temperature 2min~5min；
(d), transfer in stove：High temperature semi-finished product are transferred to by workpiece transfer mechanism on molding die；
(e), heat stamping and shaping：After semi-finished product are transferred to molding die station, punch forming, punching press pressure are carried out to semi-finished product
Intensity values are 25~45MPa, and carry out pressurize, and the dwell time is 15~30s.
One end of a kind of thermoforming production line, including furnace box, the furnace box is equipped with feed inlet, and the other end is equipped with discharging
Mouthful, which is characterized in that furnace box along workpiece moving direction successively by thermal insulation board be divided into cold punching pressure chamber, preheating chamber, main heating room,
Moist closet, molding room, be provided on thermal insulation board for workpiece by cross part hole, be hinged in crossing at part hole for preheating chamber from sealing up a door,
Bottom is equipped with ceramic conveyor roll in furnace box, and the preheating chamber, main heating room are equipped with electric heating wire, the cold punching in moist closet
It is equipped with press and cold punching die in pressure chamber, is equipped with press and molding die in the molding room, the molding room both sides are solid
Ding You workpiece transfers mechanism.
Further, one of workpiece transfer mechanism is fixed on the mistake of the thermal insulation board between moist closet and molding room
At part hole, another workpiece transfer mechanism is fixed on discharge outlet.
Further, the lower hole wall for crossing part hole is less than the peak of ceramic conveyor roll.
Further, the workpiece transfer mechanism includes the electromagnet absorption of motor, Z-type swing arm and adsorbable workpiece
Plate, Z-type swing arm are rotatably connected on furnace box wall, and the output shaft of motor is fixedly connected with Z-type swing arm upper end, electromagnet absorption
Plate level is fixed on the lower end of Z-type swing arm.Electromagnet adsorption plate can adsorb iron and steel parts after being powered, and can be incited somebody to action again after power-off
Workpiece is put down.
Z-type swing arm can be swung in moist closet after grabbing workpiece, be then transferred on molding die, then pass through another Z-type
Swing arm captures workpiece from molding die, is transferred to cooling outside furnace box.
Further, the temperature of the preheating chamber is controlled at 500 DEG C~600 DEG C.
Further, the temperature of the main heating room is controlled at 900 DEG C~1000 DEG C.
Further, the temperature of the moist closet is 700 DEG C~800 DEG C.
Further, be equipped with spray gun workpiece blown on ceramic conveyor roll at the feed inlet.
Compared with prior art, this drop stamping technological advantage is transfering process, and workpiece is in transfer process still in height
In the furnace box of temperature, prevent workpiece surface from aoxidizing before the forming, and workpiece temperature is still higher.Preheating chamber is arranged in thermoforming production line
And moist closet, thermal insulation board were provided with part hole, molding room is connected to moist closet, and a part of heat of moist closet can be flowed into molding room
It is interior, the temperature of molding room is improved, molding room temperature enables workpiece environment temperature in punch forming to be maintained at 200 DEG C or so
High temperature can effectively prevent workpiece fast cooling, while being also prevented from workpiece since moist closet and molding room are all high-temperature low-oxygen states
It is exposed to extraneous and aoxidizes.
Description of the drawings
Fig. 1 is the structural schematic diagram of thermoforming production line.
Fig. 2 is the structural schematic diagram of workpiece transfer mechanism.
In figure, 1, furnace box；2, feed inlet；3, discharge port；4, thermal insulation board；5, cold punching pressure chamber；6, preheating chamber；7, main heating
Room；8, moist closet；9, molding room；10, part hole is crossed；11, from closure door；12, ceramic conveyor roll；13, electric heating wire；14, press；
15, cold punching die；16, molding die；17, workpiece transfer mechanism；18, motor；19, Z-type swing arm；20, electromagnet adsorbs
Plate.
Specific implementation mode
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
A kind of drop stamping technique, is as follows：
(a), blanking：Plate stamping is gone out by punching machine the blank of required outer profile；
(b), cold stamping is preforming：Blank is put on the cold punching die 15 in cold punching pressure chamber 5, is passed through after the completion of punching press
Semi-finished product are blown on ceramic conveyor roll 12 by jet gun；
(c), it preheats：Semi-finished product enter preheating chamber 6 along ceramic conveyor roll 12, be heated to 500 DEG C~600 DEG C it is subsequent
It is continuous to be fed forward；
(d), austenitizing：Semi-finished product enter main heating room 7 along ceramic conveyor roll 12, are heated to 900 DEG C~1000
DEG C, keep the temperature 2min~5min；
(d), transfer in stove：High temperature semi-finished product are transferred to by workpiece transfer mechanism 17 on molding die 16；
(e), heat stamping and shaping：After semi-finished product are transferred to 16 station of molding die, punch forming, punching press are carried out to semi-finished product
Pressure values are 25~45MPa, and carry out pressurize, and the dwell time is 15~30s.
This drop stamping technological advantage is transfering process, workpiece in transfer process still in the furnace box of high temperature 1, at
Prevent workpiece surface from aoxidizing before type, and workpiece own temperature is still higher.
As shown in Figure 1 and Figure 2, a kind of thermoforming production line, including furnace box 1 is also disclosed in the present invention, the furnace box 1
One end is equipped with feed inlet 2, and the other end is equipped with discharge port 3, and furnace box 1 is divided by thermal insulation board 4 cold successively along workpiece moving direction
Punching press room 5, preheating chamber 6, main heating room 7, moist closet 8, molding room 9, be provided on thermal insulation board 4 for workpiece by cross part hole 10,
Crossing at part hole 10 to be hinged with from bottom in closure door 11, furnace box 1 and be equipped with ceramic conveyor roll 12 in preheating chamber 6, the preheating chamber 6,
It is equipped with electric heating wire 13 in main heating room 7, moist closet 8, press 14 and cold punching die 15 are equipped in the cold punching pressure chamber 5,
Press 14 and molding die 16 are equipped in the molding room 9,9 both sides of the molding room are respectively and fixedly provided with workpiece transfer mechanism 17.
The temperature of the preheating chamber 6 is controlled at 500 DEG C~600 DEG C, the temperature control of the main heating room 7 900 DEG C~
1000 DEG C, the temperature of the moist closet 8 is 700 DEG C~800 DEG C.Part hole 10 was arranged on thermal insulation board 4 facilitates workpiece transfer to arrive
Next process, the lower hole wall for crossing part hole 10 are less than the peak of ceramic conveyor roll 12.
One of workpiece transfer mechanism 17 is fixed on the part hole excessively of the thermal insulation board 4 between moist closet 8 and molding room 9
At 10, another workpiece transfer mechanism 17 is fixed at discharge port 3.
The workpiece transfer mechanism 17 includes the electromagnet adsorption plate 20 of motor 18, Z-type swing arm 19 and adsorbable workpiece,
Z-type swing arm 19 is rotatably connected on 1 wall of furnace box, and the output shaft of motor 18 is fixedly connected with 19 upper end of Z-type swing arm, electromagnet
Adsorption plate 20 is horizontally fixed on the lower end of Z-type swing arm 19.Electromagnet adsorption plate 20 can adsorb iron and steel parts after being powered, and break
Workpiece can be put down again after electricity.
Z-type swing arm 19 can be swung in moist closet 8 after grabbing workpiece, be then transferred on molding die 16, then by another
One Z-type swing arm 19 captures workpiece from molding die 16, is transferred to cooling outside furnace box 1.
It is equipped at the feed inlet 2 and workpiece is blown into the spray gun on ceramic conveyor roll 12, it will by the air-flow that spray gun sprays
Semi-finished product on cold punching die 15 are blown off, and semi-finished product is made to drop on ceramic conveyor roll 12.
Preheating chamber 6 and moist closet 8 is arranged in thermoforming production line, and thermal insulation board 4 was provided with part hole 10, molding room 9 and moist closet 8
Connection, a part of heat of moist closet 8 can be flowed into molding room 9, improve the temperature of molding room 9,9 temperature of molding room is 200
DEG C or so, so that workpiece environment temperature in punch forming is maintained at high temperature, since moist closet 8 is all that high temperature is low with molding room 9
Oxygen condition can effectively prevent workpiece fast cooling, while being also prevented from workpiece and being exposed to extraneous and aoxidize.
Claims (9)
1. a kind of drop stamping technique, which is characterized in that be as follows：
(a), blanking：Plate stamping is gone out by punching machine the blank of required outer profile；
(b), cold stamping is preforming：Blank is put on the cold punching die in cold punching pressure chamber, passes through jet gun after the completion of punching press
Semi-finished product are blown on ceramic conveyor roll；
(c), it preheats：Semi-finished product enter preheating chamber along ceramic conveyor roll, continue forward after being heated to 500 DEG C~600 DEG C
Conveying；
(d), austenitizing：Semi-finished product enter main heating room along ceramic conveyor roll, are heated to 900 DEG C~1000 DEG C, heat preservation
2min~5min；
(d), transfer in stove：High temperature semi-finished product are transferred to by workpiece transfer mechanism on molding die；
(e), heat stamping and shaping：After semi-finished product are transferred to molding die station, punch forming, punching press pressure values are carried out to semi-finished product
For 25~45MPa, and pressurize is carried out, the dwell time is 15~30s.
2. one end of a kind of thermoforming production line, including furnace box, the furnace box is equipped with feed inlet, the other end is equipped with discharge port,
It is characterized in that, furnace box is divided into cold punching pressure chamber by thermal insulation board successively along workpiece moving direction, preheating chamber, main heating room, protects
Greenhouse, molding room, be provided on thermal insulation board for workpiece by cross part hole, be hinged in crossing at part hole for preheating chamber from sealing up a door, stove
Bottom is equipped with ceramic conveyor roll in case, and the preheating chamber, main heating room are equipped with electric heating wire, the cold stamping in moist closet
Interior is equipped with press and cold punching die, and press and molding die are equipped in the molding room, and the molding room both sides are fixed
There is workpiece transfer mechanism.
3. a kind of thermoforming production line according to claim 2, which is characterized in that one of workpiece transfer mechanism is fixed
In crossing at part hole for the thermal insulation board between moist closet and molding room, another workpiece transfer mechanism is fixed on discharge outlet.
4. a kind of thermoforming production line according to claim 2, which is characterized in that the lower hole wall for crossing part hole is defeated less than ceramics
Send the peak of roller.
5. a kind of thermoforming production line according to claim 2 or 3, which is characterized in that the workpiece transfer mechanism includes
The electromagnet adsorption plate of motor, Z-type swing arm and adsorbable workpiece, Z-type swing arm are rotatably connected on furnace box wall, motor it is defeated
Shaft is fixedly connected with Z-type swing arm upper end, and electromagnet adsorption plate is horizontally fixed on the lower end of Z-type swing arm.
6. a kind of thermoforming production line according to claim 2, which is characterized in that the temperature control of the preheating chamber exists
500 DEG C~600 DEG C.
7. a kind of thermoforming production line according to claim 2, which is characterized in that the temperature control of the main heating room exists
900 DEG C~1000 DEG C.
8. a kind of thermoforming production line according to claim 2, which is characterized in that the temperature of the moist closet is 700 DEG C
~800 DEG C.
9. a kind of thermoforming production line according to claim 2, which is characterized in that be equipped at the feed inlet and blow workpiece
Spray gun on to ceramic conveyor roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810551004.7A CN108704968A (en) | 2018-05-31 | 2018-05-31 | A kind of drop stamping technique and thermoforming production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810551004.7A CN108704968A (en) | 2018-05-31 | 2018-05-31 | A kind of drop stamping technique and thermoforming production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108704968A true CN108704968A (en) | 2018-10-26 |
Family
ID=63870270
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810551004.7A Pending CN108704968A (en) | 2018-05-31 | 2018-05-31 | A kind of drop stamping technique and thermoforming production line |
Country Status (1)
| Country | Link |
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Cited By (6)
| 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 |
| CN110076246A (en) * | 2019-04-25 | 2019-08-02 | 北京航星机器制造有限公司 | A kind of heat-treatable strengthened aluminum alloy High Efficiency Thermal Forming Equipments and method |
| CN110695222A (en) * | 2019-11-18 | 2020-01-17 | 辉泰（太仓）汽配有限公司 | Dual high-efficient heating device of panel |
| CN111604397A (en) * | 2020-04-24 | 2020-09-01 | 汪宇波 | Thermal forming process of uniform-section boron steel pipe |
| CN113600662A (en) * | 2021-08-05 | 2021-11-05 | 东营广大金科机器人有限公司 | Thermal forming production line |
| CN117311196A (en) * | 2023-08-28 | 2023-12-29 | 河北界斯智能装备制造有限公司 | Linkage control system and method for hot stamping intelligent control integrated cabinet |
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Cited By (8)
| 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 |
| CN110076246A (en) * | 2019-04-25 | 2019-08-02 | 北京航星机器制造有限公司 | A kind of heat-treatable strengthened aluminum alloy High Efficiency Thermal Forming Equipments and method |
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| CN111604397A (en) * | 2020-04-24 | 2020-09-01 | 汪宇波 | Thermal forming process of uniform-section boron steel pipe |
| CN113600662A (en) * | 2021-08-05 | 2021-11-05 | 东营广大金科机器人有限公司 | Thermal forming production line |
| CN113600662B (en) * | 2021-08-05 | 2023-04-07 | 东营广大金科机器人有限公司 | Thermal forming production line |
| CN117311196A (en) * | 2023-08-28 | 2023-12-29 | 河北界斯智能装备制造有限公司 | Linkage control system and method for hot stamping intelligent control integrated cabinet |
| CN117311196B (en) * | 2023-08-28 | 2024-06-14 | 河北界斯智能装备制造有限公司 | Linkage control system and method for hot stamping intelligent control integrated cabinet |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181026 |
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| RJ01 | Rejection of invention patent application after publication |