CN110961532A - Large water-cooling mold for hot forming of high-strength steel plate - Google Patents
Large water-cooling mold for hot forming of high-strength steel plate Download PDFInfo
- Publication number
- CN110961532A CN110961532A CN201911324515.6A CN201911324515A CN110961532A CN 110961532 A CN110961532 A CN 110961532A CN 201911324515 A CN201911324515 A CN 201911324515A CN 110961532 A CN110961532 A CN 110961532A
- Authority
- CN
- China
- Prior art keywords
- water
- cooling
- type feeding
- lower die
- discharging device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- B21D37/10—Die sets; Pillar guides
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
-
- 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
- B21D43/003—Positioning devices
-
- 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
- B21D43/021—Control or correction devices in association with moving strips
- B21D43/023—Centering devices, e.g. edge guiding
Abstract
The invention discloses a large water-cooling die for hot forming of a high-strength steel plate, which comprises an upper die frame, a lower die frame, an upper die insert, a lower die insert, a guide device, a limiting block, a water-cooling device and a slide way type feeding and discharging device, wherein the upper die frame is provided with a plurality of upper die blocks; the guide devices are arranged between the upper die frame and the lower die frame and positioned on two sides in front of the lower die insert and are used for guiding the plate conveyed in the large water-cooling die; the slideway type feeding and discharging device is arranged in the lower die insert; the limiting block is arranged on the lower die insert and is positioned behind the slide way type feeding and discharging device; the cooling device is communicated with the slideway type feeding and discharging device. The invention can stably, accurately and quickly convey the hot plate material into the die in a long distance, and is convenient for cooling large plate materials.
Description
Technical Field
The invention belongs to the technical field of high-strength steel plate hot forming, and particularly relates to a large water-cooling mold for hot forming of a high-strength steel plate, which is particularly suitable for processing a steel plate used on a commercial vehicle.
Background
The existing hot forming production line uses a cantilever type feeding device to feed heated plates into a die, the length of steel plate parts used on commercial vehicles is more than 4 meters and can reach more than 10 meters at most, and the cantilever type feeding device cannot be used for feeding the red plates into the die which is more than 10 meters in length due to the fact that longitudinal feeding is adopted during hot forming processing of the steel plates. In addition, the commercial vehicle is mostly made of a 2-16mm thick steel plate, and the quenching liquid is difficult to cool. Therefore, a large water-cooling mold for a high-strength steel plate thermal forming production line is urgently needed, a hot plate can be stably, accurately and quickly conveyed into the mold in a long distance, and the large plate can be conveniently cooled.
Disclosure of Invention
The invention provides a large water-cooling mold for hot forming of a high-strength steel plate, which can stably, accurately and quickly convey a hot plate material into the mold in a long distance and is convenient for cooling the large plate material.
The purpose of the invention is realized by the following technical scheme:
a large water-cooling mold for hot forming of a high-strength steel plate comprises an upper mold frame, a lower mold frame, an upper mold insert, a lower mold insert, a guide device, a limiting block, a water-cooling device and a slide way type feeding and discharging device; the guide devices are arranged between the upper die frame and the lower die frame and positioned on two sides in front of the lower die insert and are used for guiding the plate conveyed in the large water-cooling die; the slideway type feeding and discharging device is arranged in the lower die insert; the limiting block is arranged on the lower die insert and is positioned behind the slide way type feeding and discharging device; the cooling device is communicated with the slideway type feeding and discharging device.
Furthermore, a slide way mounting groove is formed in the lower die insert, and a slide way type feeding and discharging device is mounted in the slide way mounting groove; the slideway type feeding and discharging device comprises a bracket, a bearing, a limit screw and a spring; the plurality of bearings are respectively installed on the support through pin shafts, all the bearings are located on the same horizontal plane, the pin shafts are fixed on the support, the springs are abutted between the bottom surface of the support and the slide way installation groove, the support is fixed on the slide way installation groove through limiting screws, and the top of each bearing is adjusted to expose the height of the upper plane of the lower die insert.
Furthermore, the cooling device comprises a water inlet valve, a baffle, a water outlet joint, a water outlet hose and a current collector; circulating water flows into the slide mounting groove through the water inlet valve, the slide mounting groove is internally provided with a baffle plate to separate the slide mounting groove into a cooling cavity and an overflow cavity, the slide type feeding and discharging device is positioned in the cooling cavity, when the circulating water surface in the cooling cavity is higher than the baffle plate, water overflows to the overflow cavity from the upper part of the baffle plate, and the overflow cavity is connected with a water collector through a water outlet joint and a water outlet hose.
The invention has the following beneficial effects:
the invention sets up the guiding device in the front both sides of insert of upper and lower mould first, guide the sheet metal conveyed, place the sheet metal off tracking; a plurality of groups of slideway type feeding and discharging devices are arranged in the lower die insert, and the red sheet can slide in the water-cooling die under the assistance of the slideway type feeding and discharging devices so as to smoothly enter the water-cooling die, so that the sheet can not reach a pressing position due to stopping in the conveying process under the condition of insufficient sheet power; in order to prevent the plate material from sliding out of the mould pressing position too fast, a plurality of limiting blocks are arranged at the discharging end of the lower mould insert block to limit the plate material. During pressing, the upper die insert presses the plate material downwards, the spring is pressed, the plate material enables the bearing to be completely pressed into the mounting groove, and after pressing is finished, the spring is reset to push out the support and the bearing for feeding and discharging next time. The slideway type feeding and discharging device is immersed in a water tank (namely a slideway mounting groove), so that the slideway type feeding and discharging device is cooled and a workpiece is quenched and cooled, circulating water flows into the water tank through a water inlet valve, and when the water level is higher than a baffle, the water overflows from the upper side and flows into a water collector through a water outlet joint and a water outlet hose. The invention can stably, accurately and quickly convey the hot plate material into the die in a long distance, and is convenient for cooling large plate materials.
Drawings
FIG. 1 is a schematic structural diagram of a large water-cooled mold for hot forming of a high-strength steel plate according to the present invention;
FIG. 2 is a schematic view of the structure of the lower die insert assembled with the slide type feeding and discharging device;
FIG. 3 is a schematic view of the structure of the chute-type feeding and discharging device and the water cooling device;
FIG. 4 is a schematic side view of a part of the chute type feeding and discharging device;
FIG. 5 is a schematic view of a partial top view of the chute-type feeding and discharging device;
in the figure: 1-mounting a mould frame; 2-lower die carrier; 3-an upper die insert; 4-a lower die insert; 5-a guiding device; 6-a limiting block; 7-an ejection device; 8-a water cooling device; 9-a slideway type feeding and discharging device; 10-plate material; 81-water inlet valve; 82-a baffle; 83-water outlet joint; 84-water outlet hose; 91-a support; 92-a pin shaft; 93-a bearing; 94-a gasket; 95-screws; 96-limit screw; 97-spring.
Detailed Description
The technical scheme of the invention is described in detail in the following with reference to the attached drawings and embodiments:
as shown in fig. 1, a large water-cooling mold for hot forming of a high-strength steel plate comprises an upper mold frame 1, a lower mold frame 2, an upper mold insert 3, a lower mold insert 4, a guide device 5, a limiting block 6, a water cooling device 8 and a slide type feeding and discharging device 9. The upper die insert 3 is arranged on the upper die frame 1, and the lower die insert 4 is arranged on the lower die frame 2; the guide devices 5 are arranged between the upper die frame and the lower die frame and positioned on two sides in front of the lower die insert and the lower die insert, and the guide devices 5 are used for guiding the plate 10 conveyed into the large water-cooling die; the slide way type feeding and discharging device 9 is arranged in a slide way mounting groove of the lower die insert 4 and is used for assisting the sheet material 10 to slide to a pressing position; the limiting block 6 is arranged on the lower die insert 4 and is positioned behind the slide way type feeding and discharging device 9; the cooling device 8 is communicated with the slide mounting groove of the lower die insert 4, circulating water is filled in the slide mounting groove, and the slide type feeding and discharging device 9 is immersed in the circulating water of the cooling device.
A plurality of groups of slide type feeding and discharging devices 9 are respectively arranged on the lower die insert 4 in parallel along the horizontal and longitudinal directions, slide mounting grooves with the same number as the slide type feeding and discharging devices 9 are arranged on the lower die insert 4, and a group of slide type feeding and discharging devices 9 are arranged in each slide mounting groove. The slideway type feeding and discharging device 9 comprises a support 91, a pin shaft 92, a bearing 93, a gasket 94, a screw 95, a limit screw 96 and a spring 97. The bearings 93 are stainless steel bearings, the bearings 93 are respectively installed on the support 91 through the pin shaft 92, all the bearings are located on the same horizontal plane, the screw 95 is screwed on the pin shaft 92 to fix the bearings on the support 91, the spring 97 abuts against the bottom surface of the support 91 and the slideway installation groove, the support 91 is fixed on the slideway installation groove through the limiting screw 96, and the top of each bearing 93 is limited to be exposed out of the upper plane of the lower die insert 56 by 3 mm.
The cooling devices 8 are arranged corresponding to the slide type feeding and discharging devices 9, and each set of slide type feeding and discharging devices 9 is provided with one set of cooling devices 8. The cooling device 8 comprises a water inlet valve 81, a baffle 82, a water outlet joint 83, a water outlet hose 84 and a current collector, circulating water flows into the slide way mounting groove through the water inlet valve 81, the baffle 82 is arranged in the slide way mounting groove to separate the slide way mounting groove into a cooling cavity and an overflow cavity, the slide way type feeding and discharging device 9 is located in the cooling cavity, when the circulating water surface in the cooling cavity is higher than the baffle 82, water overflows to the overflow cavity from the upper part of the baffle, and the overflow cavity is connected with the water collector through the water outlet joint 83 and the water outlet hose 84.
The upper and lower die frames are large iron castings, high in strength, non-deformable and easy to machine, and die steel or alloy cast steel is selected for the upper and lower die inserts according to the actual conditions of manufactured parts. Because large parts are mostly of equal cross sections, the processing of the water channel is relatively easy. However, it is difficult to get the burned slabs into a 10 meter long mold. Therefore, the guide devices are arranged on the two sides in front of the upper die insert and the lower die insert firstly to guide the conveyed plate and prevent the plate from deviating; a plurality of groups of slideway type feeding and discharging devices 9 are arranged in the lower die insert, and the red sheet material can slide for 9 meters under the assistance of the slideway type feeding and discharging devices 9 and smoothly enter a water-cooling die so as to avoid stopping on the way of conveying and being incapable of reaching a pressing position under the condition of insufficient sheet material power; in order to prevent the plate 10 from sliding out of the die pressing position too fast, a plurality of limiting blocks 6 are arranged at the discharging end of the lower die insert to limit the plate.
During pressing, the upper die insert 3 presses the plate 10 downwards, the spring 97 is pressed, the plate 10 completely presses the bearing into the mounting groove, and after pressing is finished, the spring 97 is reset to eject the support 91 and the bearing 93 out for feeding and discharging at the next time. The slideway type feeding and discharging device 9 is immersed in a water tank (namely a slideway mounting groove), namely, the slideway type feeding and discharging device 9 is cooled to quench and cool a workpiece, circulating water flows into the water tank through a water inlet valve 81, when the water level is higher than a baffle 82, the water overflows from the upper side and flows into a water collector through a water outlet joint 83 and a water outlet hose 84, the water outlet quantity of the water inlet valve 81 can be adjusted, and the water inlet valve is connected to a cooling circulating water channel in a mold.
According to different pressed parts, the number of the slideway type feeding and discharging devices is different, but at least two rows are arranged transversely, and the weight of the slideway can bear more than 3 times of the dead weight of the part, so that the slideway device is not pressed into the groove to lose functions when the plate slides.
There are two situations when using a slide-type charging and discharging device. The other part is a flat part, when the flat part enters a die, a transfer device on an automatic line pushes a sheet to move forward to a positioning point along a slide way, a lower die surface presses a bearing on the slide way into a water tank in the closing process of the die, an upper die surface is in zero-clearance contact with the sheet and absorbs heat, the bottom surface of the sheet is in line contact with a plurality of bearings of the slide way device to absorb heat, and the other part of the bottom surface of the sheet is about 1.5mm away from a circulating water surface, so that the flat part also plays a heat absorption function and. Through tests, the quenching performance of the steel plate at the position where the slideway is arranged is the same as that of other positions. After the shaping and quenching are finished, the press is lifted, the pressed part is jacked up under the action of the spring, the material taking arm enters the die, one end of the part is sucked up by the sucking disc, and the part is dragged out of the die to a specified place. When dragging, most parts always slide on the slide way of the die, and for large-sized flat plate pieces, the parts are difficult to take out without the method. The other is a press-bending formed part, the situation of entering the mould is the same as the first, when the part is taken, the material taking arm enters the mould, and a plurality of suckers suck the part at the middle part of the part, because the rigidity of the press-bending formed part is greatly improved, the part can be directly taken out by the method.
Claims (3)
1. A large water-cooling die for hot forming of a high-strength steel plate comprises an upper die frame, a lower die frame, an upper die insert and a lower die insert, and is characterized by further comprising a guide device, a limiting block, a water cooling device and a slide way type feeding and discharging device; the guide devices are arranged between the upper die frame and the lower die frame and positioned on two sides in front of the lower die insert and are used for guiding the plate conveyed in the large water-cooling die; the slideway type feeding and discharging device is arranged in the lower die insert; the limiting block is arranged on the lower die insert and is positioned behind the slide way type feeding and discharging device; the cooling device is communicated with the slideway type feeding and discharging device.
2. The large water-cooling mold for hot forming of the high-strength steel plate according to claim 1, wherein a slide mounting groove is formed in the lower mold insert, and a slide type feeding and discharging device is mounted in the slide mounting groove; the slideway type feeding and discharging device comprises a bracket, a bearing, a limit screw and a spring; the plurality of bearings are respectively installed on the support through pin shafts, all the bearings are located on the same horizontal plane, the pin shafts are fixed on the support, the springs are abutted between the bottom surface of the support and the slide way installation groove, the support is fixed on the slide way installation groove through limiting screws, and the top of each bearing is adjusted to expose the height of the upper plane of the lower die insert.
3. A large water-cooled mould for hot forming of high-strength steel plates according to claim 2, wherein the cooling device comprises a water inlet valve, a baffle plate, a water outlet joint, a water outlet hose and a current collector; circulating water flows into the slide mounting groove through the water inlet valve, the slide mounting groove is internally provided with a baffle plate to separate the slide mounting groove into a cooling cavity and an overflow cavity, the slide type feeding and discharging device is positioned in the cooling cavity, when the circulating water surface in the cooling cavity is higher than the baffle plate, water overflows to the overflow cavity from the upper part of the baffle plate, and the overflow cavity is connected with a water collector through a water outlet joint and a water outlet hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911324515.6A CN110961532B (en) | 2019-12-20 | 2019-12-20 | Large water-cooling mold for hot forming of high-strength steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911324515.6A CN110961532B (en) | 2019-12-20 | 2019-12-20 | Large water-cooling mold for hot forming of high-strength steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110961532A true CN110961532A (en) | 2020-04-07 |
| CN110961532B CN110961532B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911324515.6A Active CN110961532B (en) | 2019-12-20 | 2019-12-20 | Large water-cooling mold for hot forming of high-strength steel plate |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004283877A (en) * | 2003-03-24 | 2004-10-14 | Seiko Epson Corp | Die lifter for press machine, and press machine |
| CN101288890A (en) * | 2007-04-18 | 2008-10-22 | 同济大学 | Cooling system of ultra-high strength steel hot stamping forming die |
| CN104815908A (en) * | 2015-05-06 | 2015-08-05 | 翟述基 | Water cooling mold for high-strength steel plate stamping part thermal forming |
| CN104841780A (en) * | 2015-05-06 | 2015-08-19 | 翟述基 | High strength steel plate stamping part thermal forming production automation line |
| CN207139134U (en) * | 2017-07-11 | 2018-03-27 | 中国商用飞机有限责任公司 | For Invar mould steel plate welds with weldering cooling device |
| CN208214103U (en) * | 2018-05-29 | 2018-12-11 | 安徽大明汽车零部件有限公司 | A kind of automobile parts cooling device for processing |
-
2019
- 2019-12-20 CN CN201911324515.6A patent/CN110961532B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004283877A (en) * | 2003-03-24 | 2004-10-14 | Seiko Epson Corp | Die lifter for press machine, and press machine |
| CN101288890A (en) * | 2007-04-18 | 2008-10-22 | 同济大学 | Cooling system of ultra-high strength steel hot stamping forming die |
| CN104815908A (en) * | 2015-05-06 | 2015-08-05 | 翟述基 | Water cooling mold for high-strength steel plate stamping part thermal forming |
| CN104841780A (en) * | 2015-05-06 | 2015-08-19 | 翟述基 | High strength steel plate stamping part thermal forming production automation line |
| CN207139134U (en) * | 2017-07-11 | 2018-03-27 | 中国商用飞机有限责任公司 | For Invar mould steel plate welds with weldering cooling device |
| CN208214103U (en) * | 2018-05-29 | 2018-12-11 | 安徽大明汽车零部件有限公司 | A kind of automobile parts cooling device for processing |
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| Publication number | Publication date |
|---|---|
| CN110961532B (en) | 2021-06-29 |
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Effective date of registration: 20211029 Address after: 136105 Qingquan village, Gongzhuling Economic Development Zone, Changchun City, Jilin Province Patentee after: Jilin Economic Development Zone Gongzhuling ICT mould Co.,Ltd. Address before: 130000 middle gate 37, door 4, building 49-6, Yangliu street, Luyuan District, Changchun City, Jilin Province Patentee before: Zhai Shuji |
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