CN104492975B - Die structure for reducing thermal forming steel plate punch wearing - Google Patents
Die structure for reducing thermal forming steel plate punch wearing Download PDFInfo
- Publication number
- CN104492975B CN104492975B CN201410800223.6A CN201410800223A CN104492975B CN 104492975 B CN104492975 B CN 104492975B CN 201410800223 A CN201410800223 A CN 201410800223A CN 104492975 B CN104492975 B CN 104492975B
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- Prior art keywords
- lubrication
- punch
- upper die
- die
- lubricating oil
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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
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
Abstract
The invention relates to a die structure for reducing the thermal forming steel plate punch wearing. The die structure comprises an upper die and a lower die seat; the upper die is provided with an upper die punch, and the lower die seat is provided with a lower die punch concave die sleeve. The die structure is characterized in that a spiral lubrication guide pipe wraps the upper die punch; a lubrication guide pipe is hollow, and a gap is arranged in the wall of the lubrication guide pipe in the length direction; lubrication oil/liquid pipelines are arranged on one side of the upper die punch, one ends of the lubrication oil/liquid pipelines are fixed to the base mounting surface of the upper end of the upper die punch, and the other ends of the lubrication oil/liquid pipelines are fixed to the upper die; all the lubrication oil/liquid pipelines gather to form a main pipeline connected to a lubrication source; one ends of the lubrication oil/liquid pipelines are connected to one end of the lubrication guide pipe in a clearance fit manner, and the other end of the lubrication guide pipe wraps the upper die punch spirally and is opened. The structure has the advantages that on the premises that additional cost is omitted and the producing efficiency is guaranteed, the punch can be lubricated effectively.
Description
Technical field
The present invention relates to a kind of reduce hot forming steel plate drift dull die structure, especially one kind is for through overheated
Shaping process after high intensity and ultrahigh-strength steel plates be punched out the mould structure of technique, belong to the separation skill of hot forming steel plate
Art field.
Background technology
High-strength steel sheet intensity is high, particularly has higher comprehensive mechanical property in normalizing or normalizing tempered condition, high
The application of strength steel sheet is the effective means simultaneously guaranteeing lightweight and crashworthiness, therefore in large ship, bridge, power station
It is widely used in the construction industry fields such as equipment, middle high-pressure boiler, high-pressure bottle, rolling stock, hoisting machinery.And hot forming
As a kind of Newly Sprouted Things, its production technology is different from common high-strength steel sheet to steel plate, and the production technology of hot forming steel plate is led to
Often include shaping and quenching two stages of cooling, wherein, shaping stage needs once stamping by mould at high temperature, quenching
Cooling stage needs to cool down rapidly by controlling certain rate of cooling, so that steel plate occurs from austenite microstructure to horse
The transformation of family name's body microstructure, thus obtains high intensity and hardness, taking common boron steel as a example, its intensity after hot forming process
Reach 1500Mpa.The tensile strength of general high-strength steel sheet is in 400MPa～450MPa, and hot forming steel add
Before heat, tensile strength has reached 500 MPa～800MPa, then can improve to 1300～1600 MPa, its intensity after thermoforming
For 3～4 times of rolled products of ordinary high-strength steel, its hardness is only second to pottery, but has the toughness of steel, with common hot forming boron steel
As a example steel plate, intensity reaches 1500MPa, and elongation percentage is 5% about, and considerably beyond the high-strength steel of general significance, it separates work
Skill difficulty is significantly larger than general steel plate and common high-strength steel steel plate.
For the punching technology of hot forming steel plate, because steel plate intensity itself and hardness are very high, drift abrasion is very tight
Weight, finally produces punching burr, affects workpiece quality.For this reason, conventional method is the sintered steel using high rigidity, or even
Increase the process for treating surface such as TD, PVD coating on the basis of sintered steel, the cost of cutting edge thus becomes very expensive.
Another solution is the lubricating condition of drift when improving punching, and common method is in part hot forming
Later through oiling technique, piece surface is allowed to cover lubricating oil or lubricating fluid.But in batch production process：（1）Increase by one
Sequence oiling technique, increased production cost；（2）Considering from the safety inventory producing, being often required to standby storehouse, even if ensure that advanced elder generation
The logistics principle going out, also usually appearance production is long for interval time, and covering lubricating oil/lubricating fluid on workpiece volatilizees, water clock,
Cause entirety or certain regional area lack of lubrication even without lubrication.
If it is possible to a kind of invention lubrication operation, both workpiece can be lubricated, and not increase production process,
Also ensure that the uniform, stable of lubrication, will have very big using value to the lifting of hot forming punching technology quality and cost.
Content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, provides a kind of hot forming steel plate drift that reduces to wear and tear
Mould structure, do not increasing on the premise of extra cost also do not lose production efficiency, effectively lubricating drift.
According to the present invention provide technical scheme, described reduction hot forming steel plate drift dull die structure, including on
Mould and die shoe, setting holding pad and upper die punch on upper mould, setting bottom punch hole die case on die shoe, upper die punch and under
Stamping hole die case matches；It is characterized in that：Winding screw shape lubrication conduit in described upper die punch, lubrication conduit is hollow
Conduit, arranges space on the tube wall of lubrication conduit along its length；The upper die punch side needing lubrication at each is equipped with profit
Lubricating oil/lubrication liquid pipeline, one end of lubricating oil/lubrication liquid pipeline is fixed on the floor installation face of upper die punch upper end, lubrication
The other end of oil/lubrication liquid pipeline is fixed on mould；All of lubricating oil/lubrication liquid pipeline converges forms main line, main line
It is connected with lubrication source；One end of described lubricating oil/lubrication liquid pipeline and one end of lubrication conduit are connected by way of interference fit
Connect, the other end of lubrication conduit twines in the shape of a spiral and is attached in upper die punch.
Further, described lubrication conduit is wrapped in the upper end of upper die punch, and the installation site of lubrication conduit is located at upper mould
Drift is in 5 ~ 80mm region in upper end floor installation face.
Further, the material of described lubrication conduit is plastics, resin, ferrum or copper.
Further, flow control valve is arranged on described lubricating oil/lubrication liquid pipeline.
The present invention has following technique effect：（1）Oiling technique after the present invention can omit hot forming, before punching；（2）
The present invention is especially suitable for the project that existing mould is improved, substantially do not need to do any change to original mould structure,
The pipeline of good connection lubrication source of need only arranging, it is to avoid with existing mold constructive interference, change cost lower；（3）The present invention
Need to adjust the lubrication amount of each punching press, steady quality according to cutting edge lubrication.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the I enlarged drawing of Fig. 2.
Specific embodiment
With reference to concrete accompanying drawing, the invention will be further described.
As shown in FIG. 1 to 3：Described reduction hot forming steel plate drift dull die structure include mould 1, holding pad 2,
Upper die punch 3, bottom punch hole die case 4, die shoe 5, lubrication conduit 6, lubricating oil/lubrication liquid pipeline 7, main line 8, lubrication source
9th, flow control valve 10 etc..
As shown in Figure 1 and Figure 2, the present invention includes mould 1 and die shoe 5, setting holding pad 2 and upper die punch 3 on upper mould 1,
Setting bottom punch hole die case 4 on die shoe 5, upper die punch 3 and bottom punch hole die case 4 match；In described upper die punch 3
Upper winding screw shape lubrication conduit 6, the material of this lubrication conduit 6 is the organic composite material such as plastics or resin or is ferrum, copper
Deng metal material, lubrication conduit 6 is hollow tubing conductor, the tube wall of lubrication conduit 6 arranges space along its length it is ensured that
Lubricating oil/lubricating fluid spills along the tube wall of lubrication conduit 6 in the in the distance not less than 1 times of pitch, and along upper die punch 3 circle
Circumferential direction infiltrates upper die punch 3（Scope not less than a girth）；
Upper die punch 3 side needing lubrication at each is equipped with lubricating oil/lubrication liquid pipeline 7, lubricating oil/lubrication liquid pipeline
7 one end is fixed on the floor installation face of upper die punch 3 upper end, and the other end of lubricating oil/lubrication liquid pipeline 7 is fixed on mould
On 1；All of lubricating oil/lubrication liquid pipeline 7 converges forms main line 8, and main line 8 is connected with lubrication source 9；Described lubricating oil/profit
One end of synovial fluid pipeline 7 is connected by way of interference fit with one end of lubrication conduit 6, and the other end of lubrication conduit 6 is in spiral shell
Rotation shape twines and is attached in upper die punch 3；
Described lubrication conduit 6 is wrapped in the upper end of upper die punch 3, the installation site of lubrication conduit 6 be located at upper die punch 3 away from
In 5 ~ 80mm region in upper end floor installation face；
Flow control valve 10 is arranged on described lubricating oil/lubrication liquid pipeline 7.
The operation principle of the present invention：Before producing, main line 8 is connected with lubrication source 9, lubricating oil/lubricating fluid passes through main line
8th, lubricating oil/lubrication liquid pipeline 7, finally conveys the outlet of lubricating oil/lubrication liquid pipeline 7, and the tube wall along lubrication conduit 6 spills,
The in the distance being not less than 1 times of pitch in lubrication conduit 6 infiltrates upper die punch 3, finally under gravity, infiltrates upper die punch
3 working portions with absorption surface foremost, thus complete the lubrication to drift cutting edge；Every time after punching press, portion taken away by workpiece
Share in the benefit lubricating oil/lubricating fluid, lubrication source sustainable supply lubricating oil/lubricating fluid, thus reach lubrication output and the balance consuming.
Embodiment：The punching technology of boron steel steel plate, this workpiece is automobile B post.The material of steel plate：Boron steel 22MnB5, material
Thick 1.2mm, length 1250mm, wide 430mm, required punching D16mm；Above-mentioned workpiece is carried out at concrete processing by following steps
Reason：
The first step, carries out hot forming processing to workpiece, obtains workpiece B post after hot forming；
Second step, shown, according to the final aperture size of workpiece, workpiece is punched out process.This perforating die by upper mould 1,
Holding pad 2, upper die punch 3, bottom punch hole die case 4 and die shoe 5 form, and upper die punch 3 is provided with lubrication conduit 6, profit
Slide conduit 6 and be connected to the lubricating oil of lubrication source 9/lubrication liquid pipeline 7 interference fit, lubricating fluid/lubricating oil finally mould on edge
Drift circumferencial direction flow out, to infiltrate upper die punch 3, finally under gravity, infiltration upper die punch 3 foremost with workpiece
The working portion of contact, thus complete the lubrication to drift cutting edge；Every time after punching press, parts of lubricating oil/lubrication taken away by workpiece
Liquid, lubrication source sustainable supply lubricating oil/lubricating fluid, thus reach lubrication output and the balance consuming.
Claims (1)
1. a kind of reduction hot forming steel plate drift dull die structure, including upper mould（1）And die shoe（5）, upper mould（1）On set
Put holding pad（2）And upper die punch（3）, die shoe（5）Upper setting bottom punch hole die case（4）, upper die punch（3）And bottom punch
Hole die case（4）Match；It is characterized in that：In described upper die punch（3）Upper winding screw shape lubrication conduit（6）, lubrication conduit
（6）For hollow tubing conductor, in lubrication conduit（6）Tube wall on space is set along its length；Need the upper punch of lubrication at each
Head（3）Side is equipped with lubricating oil pipeline（7）, lubricating oil pipeline（7）One end be fixed on upper die punch（3）The floor installation of upper end
On face, lubricating oil pipeline（7）The other end be fixed on mould（1）On；All of lubricating oil pipeline（7）Main line is formed in remittance（8）,
Main line（8）With lubrication source（9）It is connected；Described lubricating oil pipeline（7）One end and lubrication conduit（6）One end joined by interference
The mode closed connects, lubrication conduit（6）The other end twine in the shape of a spiral and be attached to upper die punch（3）On；
Described lubrication conduit（6）It is wrapped in upper die punch（3）Upper end, lubrication conduit（6）Installation site be located at upper die punch
（3）In 5 ~ 80mm region in upper end floor installation face；
Described lubrication conduit（6）Material be plastics, resin, ferrum or copper；
In described lubricating oil pipeline（7）Upper setting flow control valve（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410800223.6A CN104492975B (en) | 2014-12-20 | 2014-12-20 | Die structure for reducing thermal forming steel plate punch wearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410800223.6A CN104492975B (en) | 2014-12-20 | 2014-12-20 | Die structure for reducing thermal forming steel plate punch wearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104492975A CN104492975A (en) | 2015-04-08 |
| CN104492975B true CN104492975B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410800223.6A Active CN104492975B (en) | 2014-12-20 | 2014-12-20 | Die structure for reducing thermal forming steel plate punch wearing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106270137A (en) * | 2016-08-24 | 2017-01-04 | 新昌县宏宇制冷有限公司 | The aluminum ceiling board perforating press that a kind of cooling performance is good |
| CN116116984B (en) * | 2022-12-29 | 2024-01-23 | 江苏镨赛精工科技有限公司 | Composite stainless steel plate punching machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3905047A1 (en) * | 1989-02-18 | 1990-08-23 | Uniplanung Tiefziehtechnik Gmb | Apparatus for drawing sheet metal, in particular for manufacturing stainless-steel sinks |
| CN101380654B (en) * | 2008-10-14 | 2010-12-29 | 沈阳理工大学 | Deep drawing method of magnesium alloy tailor welded blanks |
| CN102463296A (en) * | 2010-10-31 | 2012-05-23 | 扬州鑫宝电气有限公司 | Upper mould for stretching mould |
| CN102527762B (en) * | 2010-12-09 | 2013-12-04 | 襄阳中铁宏吉工程技术有限公司 | Cooling and lubricating device of hot-extrusion male die |
| CN204449041U (en) * | 2014-12-20 | 2015-07-08 | 无锡朗贤汽车组件研发中心有限公司 | Reduce hot forming steel plate drift dull die structure |
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| CN104492975A (en) | 2015-04-08 |
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Address after: 214115 Hongda Road, Wuxi City, Jiangsu Province, No. 111 Patentee after: Wuxi Lang Xian lightweight Polytron Technologies Inc Address before: 214115 Hongda Road, Wuxi City, Jiangsu Province, No. 111 Patentee before: Wuxi Co., Ltd of Lang Xian motor vehicle assembly research and development centre |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Die structure for reducing abrasion of hot forming steel plate punches Effective date of registration: 20190409 Granted publication date: 20170222 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: Wuxi Lang Xian lightweight Polytron Technologies Inc Registration number: 2019990000303 |