CN104972004A - Stamping die capable of improving punching accuracy of high-strength plate - Google Patents
Stamping die capable of improving punching accuracy of high-strength plate Download PDFInfo
- Publication number
- CN104972004A CN104972004A CN201510439084.3A CN201510439084A CN104972004A CN 104972004 A CN104972004 A CN 104972004A CN 201510439084 A CN201510439084 A CN 201510439084A CN 104972004 A CN104972004 A CN 104972004A
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- China
- Prior art keywords
- die
- offers
- strength plate
- hole
- keyway
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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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
A stamping die capable of improving the punching accuracy of a high-strength plate comprises a lower die body mounted on a base. The lower die body is formed by combining a plurality of split type inserts. The inserts are provided with a plurality of stamping holes. Concave die sleeves are detachably embedded in the stamping holes. A through hole used for a punch to pass through is formed in the center of each concave die sleeve. The inner wall of each stamping hole and the outer wall of the corresponding concave die sleeve are provided with locking key grooves which are matched with each other. Locking key pins are inserted into the locking key grooves. The corners of the inserts are provided with notches which are sunken inwards. The adaptability of the precision die is improved, and the stamping die can punch smoother corner notches.
Description
Technical field
The present invention relates to precise punching die technical field, particularly relate to a kind of diel improving high-strength plate punching precision.
Background technology
In general, automobile die refers to the general name of the mould of all stamping parts on punching body of a motor car.Such as, top cover flange die, crossbeam stiffener pressure-shaped mould etc.
At present, Chinese Automobile Industry ' ten revitalizes industry greatly as China, obtains national policy and helps, and the automobile promotion of going to the countryside in addition, each large Automobile Enterprises of China all strengthens output, and within 2012, Chinese automobile output is more than 1,900 ten thousand, keeps the status of global volume of production and marketing first.Luo Baihui represents, manufacturing a general car itself just needs about 1500 moulds, in the middle of have close to the diel of 1000 and the inside gadget mould more than 200.By the impact of China's automobile industry fast development, China's Die Manufacturing Enterprise presents very fast growth, and market capacity constantly expands.Calculate according to the car industry level of developed countries such as Japan and the United States, if can reach 40% to China's mold services in 2015 in the proportion of auto manufacturing, then China's Die Manufacturing Enterprise can reach 70,000,000,000 yuan to the total sales volume of 2015.
Along with rising progressively year by year of China's auto output, domestic-investment and foreign capitals Mmotor dies enterprise is showed one's capabilities on China Auto Market, meet red-hot domestic demand and demand for exports to a certain extent, simultaneously also for the upgrading of China's Die Manufacturing Enterprise creates a good opportunity.Visible, the prospect of China's automobile die industry is very wide.
The automobile die production capacity very advantageous in the world of China, but, due to domestic high-end Mmotor dies enterprise skill upgrading slowly, the research and development of capacity for technological innovation and mould new technology and the reason such as application power is not enough, cause the development ability of domestic high terminal mould can't meet the supporting demand of domestic automobile industry completely, high-end automobile die still has to be needed to depend on import greatly.Domestic automobile Die Industry needs this short slab of polishing as early as possible just can make up a large shortcoming of China's Die Manufacturing Enterprise thus.Once clearly proposed in Die Industry 12 is planned, future automobile die industry will to high, precision and frontier future development, and this proposes higher requirement just to the development of current China automobile die.
Applicant is devoted to the technological improvement innovation of automobile die, have accumulated a large amount of rich experience in the manufacture field of mould.
Applicant finds: existing trimming-punching die structure comparison is single.Such as, trimming function, only can realize vertically cutting off and curve R angle, and when needing indwelling otch for some stamping parts corner, need it to be first pressed into R angle, then processes the later stage, and cause the stamping parts that processes second-rate, end face exists burr.In addition, when punching, mould is all there is fixing punching cover, punching cannot go out the through hole of different size.Further, traditional mould majority adopts monolithic construction, is difficult to repair and replacement.
Above structure, constrains effect and the development of trimming-punching die, makes it precision and greatly decline.
Therefore, develop a kind of new trimming and piercing die precise punching die, not only have urgent researching value, also have good economic benefit and commercial Application potentiality, this is the power place that is accomplished of the present invention and basis just.
Summary of the invention
In order to overcome the defect of above-mentioned pointed prior art, inventor, to this has been further investigation, after having paid a large amount of creative work, thus completes the present invention.
Specifically, technical problem to be solved by this invention is: provide a kind of diel improving high-strength plate punching precision, to solve current technical problem.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of diel improving high-strength plate punching precision, comprise the lower mould body be installed on pedestal, described lower mould body is combined by some split type inserts, described insert offers some punching hole, and be embedded with die case in described punching hole is inner removable, the center of described die case offers in order to the through hole by drift, and the inwall of described punching hole and the outer wall of described die case offer the locking keyway cooperatively interacted, and described locking keyway interpolation is equipped with locking key pin; The corner of at least one piece of described insert offers the breach caved inward.
In the present invention, because die case may exist and punch. contact, in order to reduce frictional force and the guidance quality accuracy of guarantee die case, inventor is through a large amount of experiment repeatedly, the following structure of final employing: the through-hole wall that die case is offered has lubricant coating, this lubricant coating is by 70-80 weight portion boron magnesium-aluminum metal alloy, 5-7 weight portion titanium diboride, 2-5 weight portion aluminium nitride and 3-4 weight portion boron nitride composition, by boron magnesium-aluminum metal alloy, after the mixing of titanium diboride batching, cosolvent and aluminium nitride is added again in this compound, boron nitride, abundant mixing, compound is loaded in crucible, sinter molding under nitrogen and hydrogen reducing atmosphere.
This breach is set and there is very large risk, because there is in this indentation, there the phenomenon that crumbles through being everlasting in general mold materials, inventor finds in long-term practice, when adopting following structure, the probability that breach crumbles greatly reduces, and the flatness of otch improves greatly: tool insert jaggy is divided into the double-layer structure be integrally connected, lower floor is pedestal, the material manufacture same with other inserts is adopted to form, upper strata is then corner tool breach block jaggy, the component of breach block is as follows: 80-85 weight portion boron magnesium-aluminum metal alloy, 5-7 weight portion titanium diboride, 3-5 parts sulfuric acid calcium pyroborate, 1-3 weight portion thermosetting phenolic resin.Adopt mix, cold pressing, hot pressing, the processing step manufacture such as regelate be shaping.
Wherein, in the boron magnesium-aluminum metal alloy that breach block component uses, boron magnalium element wt ratio is 0.3:13:29.
Of the present inventionly a kind ofly improve in the diel of high-strength plate punching precision, as a kind of technical scheme of optimization, described insert utilizes bolt and pin to be installed on described pedestal and is combined to form described lower mould body.
Of the present inventionly a kind ofly improve in the diel of high-strength plate punching precision, as a kind of technical scheme of further optimization, the contact surface of described insert and described pedestal all offers the keyway cooperatively interacted, and in described keyway, positioning key is installed.
Use procedure of the present invention is as follows:
First utilize bolt and pin split type insert to be arranged on pedestal and be combined to form lower mould body, this lower mould body utilizes positioning key to position and prevents from operationally occurring sliding; Then select suitable die case according to the size of stamping parts punching, ensure that the through hole of die case and drift adapt;
After sheet material is laid end; start matched moulds; the patrix matched with lower mould body moves downward and is cut at the edge of sheet material; corner due to insert offers the breach caved inward; therefore sheet material can cut off first downwards by patrix herein; cut out otch, then utilize side-cutting die that modification is cut in otch side, ensure that the planarization of otch.
After have employed technique scheme, the invention has the beneficial effects as follows:
Lower mould body of the present invention is combined by some split type inserts, described insert offers some punching hole, insert utilizes bolt and pin to be installed on described pedestal and is combined to form described lower mould body, the contact surface of insert and described pedestal all offers the keyway cooperatively interacted, and in described keyway, positioning key is installed.Based on this structure, adaptability of the present invention strengthens greatly, more convenient to install, dismounting and design, for the further raising of mold integral measure of precision provides sound assurance.
The corner of described insert of the present invention offers the breach caved inward, and based on this structure, sheet material can be needed the place of punching otch cut off first downwards, and then utilize side-cutting die that modification is cut in otch side, ensure that the planarization of otch.
Described punching hole of the present invention is inner removable is embedded with die case, the center of described die case offers in order to the through hole by drift, the inwall of described punching hole and the outer wall of described die case offer the locking keyway cooperatively interacted, and described locking keyway interpolation is equipped with locking key pin.Based on this structure, the drift of more different sizes can be convenient for changing, improve the adaptability of precision die.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is bottom surface structure schematic diagram of the present invention;
Fig. 3 is the structural representation of one of them insert of the present invention;
Fig. 4 is the mounting structure schematic diagram of die case of the present invention;
Wherein, in the drawings, each number designation refers to following concrete meaning, element and/or parts respectively.
In figure: 1, lower mould body, 2, insert, 3, punching hole, 4, die case, 5, through hole, 6, locking key pin, 7, installing hole, 8, keyway, 9, semi-cylindrical groove, 10, breach.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further described.But the purposes of these exemplary embodiments and object are only used for exemplifying the present invention, not any type of any restriction is formed to real protection scope of the present invention, more non-protection scope of the present invention is confined to this.
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, a kind of diel improving high-strength plate punching precision, comprise the lower mould body 1 be installed on pedestal, described lower mould body 1 is combined by some split type inserts 2, described insert 2 offers some punching hole 3, and be embedded with die case 4 in described punching hole 3 is inner removable, the center of described die case 4 offers in order to the through hole 5 by drift, the inwall of described punching hole 3 and the outer wall of described die case 4 offer the locking keyway cooperatively interacted, described locking keyway interpolation is equipped with locking key pin 6, the present embodiment have employed following structure: on the inwall of punching hole 3, offer a semi-cylindrical groove 9, on the outer wall of die case 4, also offered a semi-cylindrical groove 9 simultaneously, these two semi-cylindrical grooves 9 cooperatively interact, form an overall locking keyway, locking key pin 6 is fitted with in locking keyway, thus can prevent die case 4 from rotating, avoid the coarse problem of processing that precision die exists.
The inwall of the through hole 5 that described die case 4 is offered has lubricant coating, this lubricant coating is made up of 80 weight portion boron magnesium-aluminum metal alloys, 7 weight portion titanium diborides, 3 weight portion aluminium nitride and 4 weight portion boron nitride, after boron magnesium-aluminum metal alloy, the mixing of titanium diboride batching, cosolvent and aluminium nitride, boron nitride is added again in this compound, abundant mixing, compound is loaded in crucible, sinter molding under nitrogen and hydrogen reducing atmosphere.Wherein, cosolvent have employed 3-glycidol ether propyl trimethoxy silicane, and the boron magnalium element wt ratio in boron magnesium-aluminum metal alloy is 1:10:31.
In the present invention, the corner of at least one piece of insert 2 offers the breach 10 caved inward, the corner that the present embodiment then have selected two pieces of inserts 2 offers the breach 10 caved inward, and two pieces of inserts 2 lay respectively at the corner of lower mould body 1, sheet material can need the place of punching otch to cut off first downwards by this breach 10, and then utilize side-cutting die that modification is cut in otch side, ensure that the planarization of otch.
In the present embodiment, the insert 2 with breach 10 is divided into the double-layer structure utilizing pin to be integrally connected, lower floor is pedestal, the material manufacture same with other inserts 2 is adopted to form, upper strata then has the breach block of breach 10 for corner, and the component of breach block is as follows: 82 weight portion boron magnesium-aluminum metal alloys, 6 weight portion titanium diborides, 4 parts sulfuric acid calcium pyroborates, 2 weight portion thermosetting phenolic resins.Adopt mix, cold pressing, hot pressing, the processing step manufacture such as regelate be shaping.Wherein, in the boron magnesium-aluminum metal alloy that breach block component uses, boron magnalium element wt ratio is 0.3:13:29.Adopt this breach block, because extreme hardness, not only substantially reduce the probability that breach block crumbles, and planarization when ensure that sheet material cuts off.
In order to ensure the accuracy of mould, described insert utilizes bolt and pin (illustrate only the installing hole 7 in order to inserting bolt and pin in figure) to be installed on described pedestal and is combined to form described lower mould body 1.Described insert 2 and the contact surface of described pedestal all offer the keyway 8 cooperatively interacted, and in described keyway 8, positioning key (the present embodiment is not shown) is installed.
Should be appreciated that the purposes of these embodiments is only not intended to for illustration of the present invention limit the scope of the invention.In addition; also should understand; after having read technology contents of the present invention, those skilled in the art can make various change, amendment and/or modification to the present invention, and these all equivalent form of values fall within the protection domain that the application's appended claims limits equally.
Claims (3)
1. one kind can be improved the diel of high-strength plate punching precision, comprise the lower mould body be installed on pedestal, it is characterized in that: described lower mould body is combined by some split type inserts, described insert offers some punching hole, and be embedded with die case in described punching hole is inner removable, the center of described die case offers in order to the through hole by drift, the inwall of described punching hole and the outer wall of described die case offer the locking keyway cooperatively interacted, and described locking keyway interpolation is equipped with locking key pin; The corner of at least one piece of described insert offers the breach caved inward.
2. a kind of diel improving high-strength plate punching precision as claimed in claim 1, is characterized in that: described insert utilizes bolt and pin to be installed on described pedestal and is combined to form described lower mould body.
3. a kind of diel improving high-strength plate punching precision as claimed in claim 2, is characterized in that: the contact surface of described insert and described pedestal all offers the keyway cooperatively interacted, and be provided with positioning key in described keyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510439084.3A CN104972004A (en) | 2015-07-23 | 2015-07-23 | Stamping die capable of improving punching accuracy of high-strength plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510439084.3A CN104972004A (en) | 2015-07-23 | 2015-07-23 | Stamping die capable of improving punching accuracy of high-strength plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104972004A true CN104972004A (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510439084.3A Pending CN104972004A (en) | 2015-07-23 | 2015-07-23 | Stamping die capable of improving punching accuracy of high-strength plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN104972004A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110287521A (en) * | 2019-05-15 | 2019-09-27 | 重庆创速工业技术研究院有限公司 | A kind of die insert boundary automatic generation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008183576A (en) * | 2007-01-29 | 2008-08-14 | Konitsuku:Kk | Punching die |
| CN202667395U (en) * | 2012-07-16 | 2013-01-16 | 重庆大江至信模具工业有限公司 | Multi-hole type die case |
| CN203541279U (en) * | 2013-11-06 | 2014-04-16 | 寿光万龙模具制造有限公司 | Novel die suitable for producing frame thick plate crossbar |
| CN203842996U (en) * | 2014-05-29 | 2014-09-24 | 安徽江淮汽车股份有限公司 | Upper die body of trimming die and trimming die |
| CN204320941U (en) * | 2014-11-28 | 2015-05-13 | 天津汽车模具股份有限公司 | Beater or beat-up deburring sequence headlight place cylinder top waste material device |
| CN204892717U (en) * | 2015-07-23 | 2015-12-23 | 高密市豪沃机械科技有限公司 | Can improve punch a hole stamping die of precision of board that excels in |
-
2015
- 2015-07-23 CN CN201510439084.3A patent/CN104972004A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008183576A (en) * | 2007-01-29 | 2008-08-14 | Konitsuku:Kk | Punching die |
| CN202667395U (en) * | 2012-07-16 | 2013-01-16 | 重庆大江至信模具工业有限公司 | Multi-hole type die case |
| CN203541279U (en) * | 2013-11-06 | 2014-04-16 | 寿光万龙模具制造有限公司 | Novel die suitable for producing frame thick plate crossbar |
| CN203842996U (en) * | 2014-05-29 | 2014-09-24 | 安徽江淮汽车股份有限公司 | Upper die body of trimming die and trimming die |
| CN204320941U (en) * | 2014-11-28 | 2015-05-13 | 天津汽车模具股份有限公司 | Beater or beat-up deburring sequence headlight place cylinder top waste material device |
| CN204892717U (en) * | 2015-07-23 | 2015-12-23 | 高密市豪沃机械科技有限公司 | Can improve punch a hole stamping die of precision of board that excels in |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110287521A (en) * | 2019-05-15 | 2019-09-27 | 重庆创速工业技术研究院有限公司 | A kind of die insert boundary automatic generation method |
| CN110287521B (en) * | 2019-05-15 | 2023-05-09 | 成都数模码科技有限公司 | Automatic generation method for die insert boundary |
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Application publication date: 20151014 |
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| RJ01 | Rejection of invention patent application after publication |