CN202506687U - Automobile part cold extrusion mould - Google Patents
Automobile part cold extrusion mould Download PDFInfo
- Publication number
- CN202506687U CN202506687U CN2012200885764U CN201220088576U CN202506687U CN 202506687 U CN202506687 U CN 202506687U CN 2012200885764 U CN2012200885764 U CN 2012200885764U CN 201220088576 U CN201220088576 U CN 201220088576U CN 202506687 U CN202506687 U CN 202506687U
- Authority
- CN
- China
- Prior art keywords
- mould
- die
- cold extrusion
- plate
- lower cavity
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides an automobile part cold extrusion mould, and belongs to the technical field of alloy material extrusion molding. The automobile part cold extrusion mould comprises an upper mould plate (1), an upper male mould (2), a female mould fixed ring (8), a prestress sleeve (10) and a lower female mould (17), wherein a molding chamber is formed between the upper male mould (2) and the lower female mould (17), the upper male mould (2) is disposed inside the upper mould plate (1), the lower female mould (17) is arranged inside the prestress sleeve (10), a cushion type mould (18) is arranged at a lower portion of the lower female mould (17), the female mould fixed ring (8) is arranged at an upper portion of the prestress sleeve (10), the female mould fixed ring (8) is connected with the prestress sleeve (10) through a double-end threaded rod (9) and a nut (16), the prestress sleeve (10) is fixedly connected with a lower mould bottom plate (14) though a nut (11), a clamp plate (12) and a cushion block (13), and a push rod (15) is arranged at a lower portion of a cushion type mould (18). The automobile part cold extrusion mould has the advantages that blanks can feed and discharge safely and automatically, batched and efficient production is achieved, and the mould is low in input cost.
Description
Technical field
The invention belongs to alloy material extrusion forming technology field, be specifically related to a kind of auto parts cold extrusion die.
Background technology
Auto industry operation mainstay of the national economy industry develops extremely rapid.How to limit energy usage, improve energy utilization rate, reduce discharge amount of exhaust gas, particularly important to preserving the ecological environment with people's living environment.At present; People can be to plumbous, tin, and metals such as aluminium, copper, zinc and alloy thereof, mild steel, medium carbon steel, tool steel, low-alloy steel and stainless steel carry out finished parts, according to the complexity appearance of material character and part high pressure, low pressure, gravity, founding, fusible pattern, ceramic casting, turning, drilling, milling, mill processing etc. is arranged; Even to bearing steel, high-carbon high-aluminium alloy tool steel, high-speed steel can only employing, turning, drilling, milling, mill processing, forge hot method; Its processing capacity is long big process time, causes production cost big, and production efficiency is low; Because the concrete part of its material character can only be selected single casting; And mould, board equipment input are bigger, and each later process such as surface treatment and heat treatment increases, and has increased production cost virtually.
Summary of the invention
The purpose of the utility model provides a kind of auto parts cold extrusion die, replaces casting, forging, pull and stretch and cut; Warm extruding, isothermal extruding, the extruding of quiet liquid and high speed extrusion process, used raw material types is many, and surface treatment and lubricating method are better; The charging safely and automatically of blank and product with go out part; High-efficient Production reduces the mould input cost in batches, reduces production process.
The present invention realizes through following technical scheme:
A kind of auto parts cold extrusion die; This mould comprises cope match-plate pattern 1, last punch 2, die retainer plate 8, prestressing force cover 10 and lower cavity die 16, it is characterized in that: go up between punch 2 and the lower cavity die 16 and form die cavity, last punch 2 is arranged in the cope match-plate pattern 1; Its cope match-plate pattern 1 is fixedly connected on the baffle plate 5 by screw rod 1, nut 7, clamping plate 3 and cushion block 6; Be provided with lower cavity die 16 in the prestressing force cover 10, below lower cavity die 16, be provided with pad mould 17, above prestressing force cover 10, be provided with die retainer plate 8; Die retainer plate 8 is connected on the prestressing force cover 10 through double threaded screw 9, nut 16; Prestressing force cover 10 is fixedly connected on down on the baffle plate 14 through nut 11, clamping plate 12, cushion block 13, and push rod 15 is arranged on and fills up mould 18 bottoms, and oil cylinder 20 is arranged on down baffle plate 14 bottoms and is connected with push rod 15.
Above-mentioned described upward punch 2 is that 2Cr12MoV processes by material, and hardness reaches 60--64HRC after its heat treatment.
Above-mentioned described lower cavity die 16 adopts three layers of combined die mode, combines by core rod and two-layer shrink ring, and radial interference assembling oblique angle 0.5 degree between the shrink ring, unit bears pressure 1400--2500MPa,
Above-mentioned described lower cavity die 16 two-layer shrink rings are that 40Cr processes by material, and hardness reaches 45--47HRC after its heat treatment.
Above-mentioned described prestressing force cover 10 runs through for circular up-small and down-big inside.
Above-mentioned described push rod 15 is that Cr12 processes by material, and hardness reaches 58--62HRC after its heat treatment.
The above-mentioned said baffle plate 5 of going up is slidingly matched through four guide pillars 19 with following baffle plate 14, and last baffle plate 5 is provided with the T type groove that can hold screw rod 4 fixtures with following baffle plate 14.
Beneficial effect of the present invention:
After adopting said structure, the Structure Design of Cold Extruding Die of the utility model is simple, and employed special-purpose board is a hydraulic press, the accurate any surface finish of extrusion sections size; Save material, productivity ratio is high, but the machining shape complicated parts; Cold-extruded part intensity is high, good rigidly is and in light weight, and punch 2 and lower cavity die 17 are directly changed in the replacing of operation, die change and safeguard quick and convenient; Thereby reduced the input of special equipment, optimized production process, reduced production frock cost.
Description of drawings
Figure 1A-Fig. 1 D is the process flow diagram of the utility model cold extrusion part.
Fig. 2 is the utility model cold extrusion die structural representation.
Fig. 3 is the utility model lower cavity die structural representation.
Fig. 4 is a punch Facad structure sketch map on the utility model.
Fig. 5 is a punch upward view on the utility model.
Among the figure, cope match-plate pattern 1, go up punch 2, clamping plate 3, screw rod 4, go up baffle plate 5, cushion block 6, nut 7, die retainer plate 8, double threaded screw 9, prestressing force cover 10, nut 11, clamping plate 12, cushion block 13, baffle plate 14, push rod 15, nut 16, lower cavity die 17, pad mould 18, guide pillar 19, oil cylinder 20 down.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done and to further describe:
A kind of auto parts cold extrusion die; This mould comprises cope match-plate pattern 1, last punch 2, die retainer plate 8, prestressing force cover 10 and lower cavity die 16; Form die cavity between punch 2 and the lower cavity die 16 on it; Last punch 2 is arranged in the cope match-plate pattern 1, and described upward punch 2 is that 2Cr12MoV processes by material, and hardness reaches 60--64HRC after its heat treatment.Its cope match-plate pattern 1 is fixedly connected on the baffle plate 5 by screw rod 1, nut 7, clamping plate 3 and cushion block 6; Be provided with lower cavity die 16 in the prestressing force cover 10, described lower cavity die 16 adopts three layers of combined die mode, is combined by core rod and two-layer shrink ring; Radial interference assembling oblique angle 0.5 degree between the shrink ring; Unit bears pressure 1400--2500MPa, and lower cavity die 16 two-layer shrink rings are that 40Cr processes by material, and hardness reaches 45--47HRC after its heat treatment.
Below lower cavity die 16, be provided with pad mould 17; Above prestressing force cover 10, be provided with die retainer plate 8, die retainer plate 8 is connected on the prestressing force cover 10 through double threaded screw 9, nut 16, and above-mentioned described prestressing force cover 10 runs through for circular up-small and down-big inside; Prestressing force cover 10 is fixedly connected on down on the baffle plate 14 through nut 11, clamping plate 12, cushion block 13; Push rod 15 is arranged on pad mould 18 bottoms, and described push rod 15 is that Cr12 processes by material, and hardness reaches 58--62HRC after its heat treatment; The said baffle plate 5 of going up is slidingly matched through four guide pillars 19 with following baffle plate 14; Last baffle plate 5 is provided with the T type groove that can hold the screw rod fixture with following baffle plate 14, and oil cylinder 20 is arranged on down baffle plate 14 bottoms and is connected with push rod 15, and two joints are arranged on the oil cylinder 20; An oil outlet, a fuel feed hole partly are connected with the board oil pressure respectively.
The cold-stamped processing method is to utilize the principle of metal material plastic deformation, under the condition of room temperature, the cold metal blank is put into the mold cavity that is contained on the forcing press; Under powerful pressure and certain speed effect; Force blank to produce plastic flowing,, extrude solid part hollow or that section is littler than blank through the gap of punch and die or the outlet of die; Can obtain required definite shape and size, also have the technology of higher mechanical property extrusion.
For its die of intensity that improves die adopts horizontal or vertical subdivision structure; Prevent that longitudinal crack from producing; Utilize interference fit; The multilayer die structure of using one or two shrink ring that the tight cover of die is got up and processing, because interior die in the combined die and shrink ring adopt interference fit, both contact-making surfaces produce contact prestressing force after being pressed into.Therefore, during the combined die extruding, the tangential stress that interior die produced reduces with regard to being cancelled, and the tangential stress that is produced on the shrink ring is applied and increases.Like this, interior die is tending towards identical with the tangential stress of shrink ring.If the size Selection of combined die shrink ring gets suitably; The magnitude of interference is also enough big; Even can make the indent mould get inwall the time not have tangential stress fully in extruding, because extrusion pressure is bigger, two molds of this design all adopt three layers to answer combined die in advance.
Be placed on the metal blank after annealed, the surface treatment earlier in the cold extrusion die cavity during work; At room temperature; Punch through fixing on the forcing press is exerted pressure to blank, makes metal blank generation plastic deformation and makes part, and the advantage of its cold extruding technique is: 1, the accurate any surface finish of extrusion sections size: the cold-extruded part stock size precision of China's development at present can reach 8～9 grades; If adopt desirable lubricating to reach (referring to fine aluminium and red copper part), be only second to the finishing polish surface.Therefore the part made from cold extrusion method does not generally need reprocessing, and a spot of needs fine finishining (grinding).2, save material: the cold-extruded part stock utilization can reach more than 80% usually, can practice thrift great deal of steel and nonferrous materials.3, productivity ratio is high: the efficient with cold extrusion method manufacturing machine part is very high, and particularly the big part of production lot is produced comparable cut with cold extrusion method and improved several times, tens times even hundred times.The productivity ratio of a cold extrusion automatic machine is equivalent to 100 Daeporis the be open to traffic bed or the productivity ratio of 10 four spindle lathes.But 4 machining shape complicated parts: like odd-shaped cross section, internal tooth, irregularly-shaped hole and blind hole etc., these parts adopt other processing method to be difficult to accomplish, and with very convenient, the shown part of cold extrusion processing, can easily extrude.5, high, the good rigidly of cold-extruded part intensity and in light weight: because the cold work reinforced characteristic of metal material cold deformation is adopted in cold extrusion; Be that metal blank is in the three-dimensional compressive stress state in the extrusion process; Be out of shape back material structure densification and have continuous fiber flow direction; Thereby the intensity of product improves a lot, and replaces high-strength material with regard to available low-intensity material like this, and the cold-extruded platen press is higher than cut manufactured piston pin.
Because the difference that operation is provided with; Thereby need continual more mold exchange, when last punch 2 needs to change, screw rod on the cope match-plate pattern 14 and nut 7 disassembled just can pull down upward punch 2 of replacing; When lower cavity die 17 needs to change; Nut 16, double threaded screw 9 are disassembled with regard to replaceable lower cavity die 17 and pad mould 18, and the push rods 15 that more are arranged on down during mold exchange below the baffle plate 14 are no longer dismantled with oil cylinders 20, and punch 2 and lower cavity die 17 are directly changed in the replacing of operation; Mould design and change is simply changed and is safeguarded quick and convenient.
Claims (7)
1. auto parts cold extrusion die; This mould comprises cope match-plate pattern (1), goes up punch (2), die retainer plate (8), prestressing force cover (10) and lower cavity die (16); It is characterized in that: go up the die cavity shape formed between punch (2) and the lower cavity die (16) with to be shaped to decide nested structure identical; Last punch (2) is arranged in the cope match-plate pattern (1); Its cope match-plate pattern (1) is fixedly connected on the baffle plate (5) by screw rod (1), nut (7), clamping plate (3) and cushion block (6), is provided with lower cavity die (16) in the prestressing force cover (10), is provided with pad mould (17) in lower cavity die (16) below; Be provided with die retainer plate (8) in prestressing force cover (10) top; Die retainer plate (8) is connected on the prestressing force cover (10) through double threaded screw (9), nut (16), and prestressing force cover (10) is fixedly connected on down on the baffle plate (14) through nut (11), clamping plate (12), cushion block (13), and push rod (15) is arranged on pad mould (18) bottom.
2. a kind of auto parts cold extrusion die according to claim 1 is characterized in that: described upward punch (2) is that 2Cr12MoV processes by material, and hardness reaches 60--64HRC after its heat treatment.
3. a kind of auto parts cold extrusion die according to claim 1; It is characterized in that: described lower cavity die (16) adopts three layers of combined die mode; Combine by core rod and two-layer shrink ring; Radial interference assembling oblique angle 0.5 degree between the shrink ring, unit bears pressure 1400--2500MPa.
4. a kind of auto parts cold extrusion die according to claim 1 is characterized in that: the two-layer shrink ring of described lower cavity die (16) is that 40Cr processes by material, and hardness reaches 45--47HRC after its heat treatment.
5. a kind of auto parts cold extrusion die according to claim 1 is characterized in that: described prestressing force cover (10) runs through for circular up-small and down-big inside.
6. a kind of auto parts cold extrusion die according to claim 1 is characterized in that: described push rod (15) is that Cr12 processes by material, and hardness reaches 58--62HRC after its heat treatment.
7. a kind of auto parts cold extrusion die according to claim 1; It is characterized in that: the said baffle plate (5) of going up is slidingly matched through four guide pillars (19) with following baffle plate (14), and last baffle plate (5) is provided with the T type groove that can hold screw rod (4) fixture with following baffle plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200885764U CN202506687U (en) | 2012-03-09 | 2012-03-09 | Automobile part cold extrusion mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200885764U CN202506687U (en) | 2012-03-09 | 2012-03-09 | Automobile part cold extrusion mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202506687U true CN202506687U (en) | 2012-10-31 |
Family
ID=47059193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200885764U Expired - Fee Related CN202506687U (en) | 2012-03-09 | 2012-03-09 | Automobile part cold extrusion mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202506687U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143581A (en) * | 2013-02-06 | 2013-06-12 | 和龙双昊高新技术有限公司 | Cold state aluminum alloy profile extrusion equipment |
| CN103163065A (en) * | 2013-02-05 | 2013-06-19 | 上海交通大学 | Cold extrusion lubricating effect detecting device and detecting method |
| CN104492949A (en) * | 2014-12-01 | 2015-04-08 | 柳州市桥厦工程管材有限公司 | One-time punch forming device for pre-stressed clamping piece |
| CN105436381A (en) * | 2015-12-12 | 2016-03-30 | 中国航空工业标准件制造有限责任公司 | Prestress die structure and manufacturing method thereof |
| CN106623470A (en) * | 2016-12-13 | 2017-05-10 | 柳州通为机械有限公司 | Engine valve gap bridge cold extruding die |
| CN107999682A (en) * | 2017-12-29 | 2018-05-08 | 天津天海精密锻造有限公司 | Quick-replaceable lower module and mould |
-
2012
- 2012-03-09 CN CN2012200885764U patent/CN202506687U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163065A (en) * | 2013-02-05 | 2013-06-19 | 上海交通大学 | Cold extrusion lubricating effect detecting device and detecting method |
| CN103163065B (en) * | 2013-02-05 | 2014-09-17 | 上海交通大学 | Cold extrusion lubricating effect detecting device and detecting method |
| CN103143581A (en) * | 2013-02-06 | 2013-06-12 | 和龙双昊高新技术有限公司 | Cold state aluminum alloy profile extrusion equipment |
| CN104492949A (en) * | 2014-12-01 | 2015-04-08 | 柳州市桥厦工程管材有限公司 | One-time punch forming device for pre-stressed clamping piece |
| CN105436381A (en) * | 2015-12-12 | 2016-03-30 | 中国航空工业标准件制造有限责任公司 | Prestress die structure and manufacturing method thereof |
| CN106623470A (en) * | 2016-12-13 | 2017-05-10 | 柳州通为机械有限公司 | Engine valve gap bridge cold extruding die |
| CN107999682A (en) * | 2017-12-29 | 2018-05-08 | 天津天海精密锻造有限公司 | Quick-replaceable lower module and mould |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202506687U (en) | Automobile part cold extrusion mould | |
| CN101508004B (en) | Sedan gear-box axle piece cold finish-forging formation method and die | |
| CN101332488B (en) | Cold-forging technique of gear shaft | |
| CN101234401B (en) | Magnesium alloy automobile wheel extrusion molding method and mold | |
| CN102189145B (en) | Multidirectional extrusion molding process and die for aluminum alloy shell parts with branches | |
| CN101332476B (en) | Precise extrusion molding method of thin wall long-pipe shaped parts bland and special mould | |
| CN103567248B (en) | A kind of inside and outside compromise face band muscle cylinder extrusion molding dies | |
| CN101607274B (en) | Manufacturing technology of automobile asymmetrical universal joint fork based on cold extruding technology and special mould thereof | |
| CN101480670B (en) | Squeezing-revolving shaping method of magnesium alloy wheel and device thereof | |
| CN104117547B (en) | A kind of Warm Extrusion gear stick continuous extrusion die and processing method thereof | |
| CN101905250A (en) | Chipless forming method for gear stick and section gear through hot extrusion | |
| Shan et al. | Study on precision forging technology for a complex-shaped light alloy forging | |
| CN103801650A (en) | Precision forging technology of tooth forms of duplex straight toothed spur gears | |
| CN101332489B (en) | Cold-forging precise forming technique of gear sleeve | |
| KR101198167B1 (en) | Manufacturing method of a crankthrow for a ship using pre-formed body by cutting and a forging device | |
| CN102189141A (en) | Method for performing extrusion molding on internal hexagon bolt of alloy steel track end coupling device | |
| CN202655371U (en) | Cold extruding mould of gear shaft | |
| CN104384427A (en) | Method for forming precision forge piece of wind power generation spindle | |
| CN103252373A (en) | Cold-extrusion forming process of high-temperature alloy high-strength skirt type self-locking hexagonal nut | |
| CN201815618U (en) | Precision forging die capable of forging tooth form of straight toothed spur gear | |
| CN203316662U (en) | Cold extrusion forming die for high-temperature-alloy high-strength skirt type self-locking hexagonal screw cap | |
| CN103599955B (en) | It is a kind of for alloy state for 6061FT6 Large Flat width thin-wall section mould structure | |
| RU2166394C1 (en) | Method for making seamless steel tubes | |
| CN103464502A (en) | Mold structure of large double-hole pipe profile with horizontal reinforcing ribs and processing method thereof | |
| CN108927417B (en) | Hot extrusion forming die and forming method for special-shaped deep-cavity complex-structure support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20130309 |