CN204338736U - Reduce hot forming steel plate trimming edge dull die structure - Google Patents
Reduce hot forming steel plate trimming edge dull die structure Download PDFInfo
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- CN204338736U CN204338736U CN201420816413.2U CN201420816413U CN204338736U CN 204338736 U CN204338736 U CN 204338736U CN 201420816413 U CN201420816413 U CN 201420816413U CN 204338736 U CN204338736 U CN 204338736U
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Abstract
The utility model relates to a kind of reduction hot forming steel plate trimming edge dull die structure, comprise upper die and lower die seat, holding pad, patrix deburring insert and counterdie deburring insert, holding pad is arranged on patrix, the side of holding pad and the contacts side surfaces of patrix deburring insert; It is characterized in that: the side that described holding pad contacts with patrix deburring insert arranges oil groove, the madial wall of oil groove is the first facade, the side that holding pad contacts with patrix deburring insert is the second facade, the upper end of the first facade is connected with holding pad upper surface, and the lower end of the first facade is connected by fillet surface with the second facade.The utility model is not increasing under the prerequisite that extra cost do not lose production efficiency yet, effectively lubricating trimming edge.
Description
Technical field
The utility model relates to a kind of reduction hot forming steel plate trimming edge dull die structure, especially a kind of for the mould carrying out deburring to the high strength after hot forming process and ultrahigh-strength steel plates, belongs to the separation technology field of hot forming steel plate.
Background technology
High-strength steel sheet intensity is high, particularly there is higher comprehensive mechanical property in normalizing or normalizing tempered condition, the application of high-strength steel sheet is the effective means simultaneously guaranteeing lightweight and crashworthiness, is therefore widely used in the construction industry fields such as large ship, bridge, power station equipment, middle high-pressure boiler, high-pressure bottle, rolling stock, hoisting machinery.And hot forming steel plate is as a kind of Newly Sprouted Things, its production technology is different from common high-strength steel sheet, the production technology of hot forming steel plate generally includes shaping and two stages of quench cooled, wherein, shaping stage needs at high temperature once stamping by mould, quench cooled stage needs cool rapidly by controlling certain cooling velocity, thus steel plate is occurred from austenite microstructure to the transformation of martensite microstructure, obtain high intensity and hardness thus, for common boron steel, after hot forming process, its intensity reaches about 1500MPa.The tensile strength of general high-strength steel sheet is at about 400MPa ~ 450MPa, and namely tensile strength reached 500 MPa ~ 800MPa before hot forming heat steel, heating then can be increased to 1300 ~ 1600 MPa after being shaped, its intensity is 3 ~ 4 times of rolled products of ordinary high-strength steel, its hardness is only second to pottery, but there is the toughness of steel, for common hot forming boron steel steel plate, intensity reaches 1500MPa, percentage elongation is about 5%, considerably beyond the high-strength steel of general significance, its separating technology difficulty is far away higher than general steel plate and common high-strength steel steel plate.
For the deburring technique of hot forming steel plate, due to the intensity of steel plate own and hardness very high, trimming edge wearing and tearing are very serious, finally produce punching burr, affect workpiece quality.For this reason, conventional method is the sintered steel using high rigidity, and even on the basis of sintered steel, increase the process for treating surface such as TD, PVD coating, the cost of cutting edge becomes very expensive thus.
Another solution is the lubricating condition of cutting edge when improving deburring, common method be after part hot forming through oiling technique, allow piece surface cover lubricating oil or lubricating fluid.But in batch production process: (1) increases by a sequence oiling technique, adds production cost; (2) consider from the safety inventory produced, usually for storehouse, even if ensure that the logistics principle of first in first out, also to usually occur producing interval time long, cover the lubricating oil/lubricating fluid volatilization above workpiece, water clock, cause entirety or certain regional area lack of lubrication even not to lubricate.
Therefore, if a kind of lubrication operation can be invented, both can lubricate workpiece, not increase production process again, the even, stable of lubrication can also be ensured, have very large using value by the lifting of hot forming deburring processing quality and cost.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, provides a kind of and reduce hot forming steel plate trimming edge dull die structure, do not increasing under the prerequisite that extra cost do not lose production efficiency yet, effectively lubricating trimming edge.
According to the technical scheme that the utility model provides, described reduction hot forming steel plate trimming edge dull die structure, comprise upper die and lower die seat, holding pad, patrix deburring insert and counterdie deburring insert, holding pad is arranged on patrix, the side of holding pad and the contacts side surfaces of patrix deburring insert; It is characterized in that: the side that described holding pad contacts with patrix deburring insert arranges oil groove, the madial wall of oil groove is the first facade, the side that holding pad contacts with patrix deburring insert is the second facade, the upper end of the first facade is connected with holding pad upper surface, and the lower end of the first facade is connected by fillet surface with the second facade.
Further, the vertical range between the lower end of described first facade and the upper end of the second facade is 2 ~ 15mm.
Further, the angle between described fillet surface and the side of holding pad is 15 ~ 65 °.
Further, the angle between described fillet surface and trimming line place horizontal plane is 0 ~ 65 °.
Further, the upper end of described oil groove is communicated with the upper surface of holding pad.
Further, described fillet surface is positioned at the middle part in holding pad profile height direction.
Further, described fillet surface distance workpiece outer contour 15 ~ 50mm in the height direction.
The utility model has following technique effect: after (1) the utility model can omit hot forming, the oiling technique before deburring; (2) oil groove is arranged on holding pad by the utility model, because holding pad is relatively independent, has designed rear concentrated processing, and manufacturing process is more effectively simple; (3) oil groove is arranged on holding pad by the utility model, and because holding pad is generally foundry goods or Fine Steel Casting iron, hardness is far below cutting edge insert (calculate with HRC, usual difference of hardness is not less than 20 degree), and processing is more efficient, convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the I enlarged drawing of Fig. 1.
Detailed description of the invention
Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.
As shown in Fig. 1 ~ Fig. 2: as described in reduction hot forming steel plate trimming edge dull die structure comprise patrix 1, holding pad 2, patrix deburring insert 3, counterdie deburring insert 4, die shoe 5, oil groove 6, first facade 6-1, the second facade 6-2, fillet surface 6-3, workpiece 7 etc.
As shown in Figure 1, the utility model comprises patrix 1, die shoe 5, holding pad 2, patrix deburring insert 3 and counterdie deburring insert 4, and holding pad 2 is arranged on patrix 1, the side of holding pad 2 and the contacts side surfaces of patrix deburring insert 3, as shown in Figure 2, the side that described holding pad 2 contacts with patrix deburring insert 3 arranges oil groove 6, the madial wall of oil groove 6 is the first facade 6-1, the side that holding pad 2 contacts with patrix deburring insert 3 is the second facade 6-2, the upper end of the first facade 6-1 is connected with holding pad 2 upper surface, the lower end of the first facade 6-1 is connected by fillet surface 6-3 with the second facade 6-2, vertical range between the lower end of the first facade 6-1 and the upper end of the second facade 6-2 is 2 ~ 15mm, angle between the side of fillet surface 6-3 and holding pad 2 is 15 ~ 65 °, angle between fillet surface 6-3 and trimming line place horizontal plane is 0 ~ 65 °,
The upper end of described oil groove 6 is communicated with the upper surface of holding pad 2, and lubricating oil is entered in oil groove 6 by the upper surface of holding pad 2, and under gravity, flows down the outer contour being covered with holding pad along fillet surface 6-3;
Described fillet surface 6-3 is positioned at the middle part in holding pad 2 profile height direction, and fillet surface 6-3 is distance workpiece 7 outer contour 15 ~ 50mm in the height direction.
Operation principle of the present utility model: before producing, lubricating pipe is connected with lubrication source, lubricating oil/lubricating fluid passes through lubricating pipe, be delivered on each oil groove 6, the flow controlled with lubrication source flows out, and under gravity, finally be covered with the outer contour of this holding pad, thus complete the lubrication to trimming edge; After each punching press, parts of lubricating oil/lubricating fluid taken away by workpiece, lubrication source sustainable supply lubricating oil/lubricating fluid, thus reaches lubrication output and the balance consumed.
Embodiment: a kind of punching technology of boron steel steel plate, this workpiece is automobile B post.The material of steel plate: boron steel 22MnB5, expects thick 1.2mm, length 1250mm, wide 430mm, required deburring outline girth 4500mm; Above-mentioned workpiece specifically processes process by following steps:
The first step, carries out hot forming processing to workpiece, obtains workpiece B post after hot forming;
Second step, as shown in Figure 1, according to the final aperture size of workpiece, carries out trim process to workpiece.This trimming die is made up of patrix 1, holding pad 2, patrix insert 3, counterdie insert 4 and die shoe 5; Concrete production process is: be connected with lubrication source by lubricating pipe before producing, lubricating oil/lubricating fluid is by lubricating oil slip pipe road, finally be transported to oil groove 6 position, the flow controlled with lubrication source flows out, and under gravity, flow downward along the fillet surface with gradient, be finally covered with the whole binder surface of this holding pad, thus complete the lubrication to trimming edge; After each punching press, parts of lubricating oil/lubricating fluid taken away by workpiece, lubrication source sustainable supply lubricating oil/lubricating fluid, thus reaches lubrication output and the balance consumed.
Claims (7)
1. one kind reduces hot forming steel plate trimming edge dull die structure, comprise patrix (1), die shoe (5), holding pad (2), patrix deburring insert (3) and counterdie deburring insert (4), holding pad (2) is arranged on patrix (1), the side of holding pad (2) and the contacts side surfaces of patrix deburring insert (3); It is characterized in that: the upper side contacted with patrix deburring insert (3) arranges oil groove (6) to described holding pad (2), the madial wall of oil groove (6) is the first facade (6-1), the side that holding pad (2) contacts with patrix deburring insert (3) is the second facade (6-2), the upper end of the first facade (6-1) is connected with holding pad (2) upper surface, and the lower end of the first facade (6-1) is connected by fillet surface (6-3) with the second facade (6-2).
2. reduction hot forming steel plate trimming edge dull die structure as claimed in claim 1, is characterized in that: the vertical range between the lower end of described first facade (6-1) and the upper end of the second facade (6-2) is 2 ~ 15mm.
3. reduction hot forming steel plate trimming edge dull die structure as claimed in claim 1, is characterized in that: the angle between the side of described fillet surface (6-3) and holding pad (2) is 15 ~ 65 °.
4. reduction hot forming steel plate trimming edge dull die structure as claimed in claim 1, is characterized in that: the angle between described fillet surface (6-3) and trimming line place horizontal plane is 0 ~ 65 °.
5. reduction hot forming steel plate trimming edge dull die structure as claimed in claim 1, is characterized in that: the upper end of described oil groove (6) is communicated with the upper surface of holding pad (2).
6. reduction hot forming steel plate trimming edge dull die structure as claimed in claim 1, is characterized in that: described fillet surface (6-3) is positioned at the middle part in holding pad (2) profile height direction.
7. reduction hot forming steel plate trimming edge dull die structure as claimed in claim 1, is characterized in that: described fillet surface (6-3) is distance workpiece (11) outer contour 15 ~ 50mm in the height direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420816413.2U CN204338736U (en) | 2014-12-20 | 2014-12-20 | Reduce hot forming steel plate trimming edge dull die structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420816413.2U CN204338736U (en) | 2014-12-20 | 2014-12-20 | Reduce hot forming steel plate trimming edge dull die structure |
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| CN204338736U true CN204338736U (en) | 2015-05-20 |
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| CN201420816413.2U Active CN204338736U (en) | 2014-12-20 | 2014-12-20 | Reduce hot forming steel plate trimming edge dull die structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525755A (en) * | 2014-12-20 | 2015-04-22 | 无锡朗贤汽车组件研发中心有限公司 | Mould structure capable of reducing abrasion of thermoforming steel plate trimming cutting edge |
-
2014
- 2014-12-20 CN CN201420816413.2U patent/CN204338736U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525755A (en) * | 2014-12-20 | 2015-04-22 | 无锡朗贤汽车组件研发中心有限公司 | Mould structure capable of reducing abrasion of thermoforming steel plate trimming cutting edge |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
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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| CP01 | Change in the name or title of a patent holder |