CN203830450U - Valve mandril cold extrusion mold - Google Patents
Valve mandril cold extrusion mold Download PDFInfo
- Publication number
- CN203830450U CN203830450U CN201420235099.9U CN201420235099U CN203830450U CN 203830450 U CN203830450 U CN 203830450U CN 201420235099 U CN201420235099 U CN 201420235099U CN 203830450 U CN203830450 U CN 203830450U
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- CN
- China
- Prior art keywords
- die
- ring
- connects
- cold extrusion
- pressure
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- Expired - Fee Related
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Abstract
The utility model discloses a valve mandril cold extrusion mold. The valve mandril cold extrusion mold comprises a pull rod, a cushion block, a female mold intermediate sleeve, a female mold inner sleeve, a material unloading ring, an upper mold seat, a positioning ring, a pressure ring, a pressure pad, a fastening ring, a male mold, a material unloading plate, a pressing ring, a female mold outer sleeve, a mandril, a positioning ring, a top plate, a tension spring, a movable plate, a pressure pad, a small mandril, an inclined block and a lower mold seat. The valve mandril cold extrusion mold is reasonable in design; compared with the conventional cutting processing production, the valve mandril is produced by adopting a cold extrusion process, the mechanical property of the valve mandril is improved, the production efficiency is improved, the consumption of raw materials and energy sources is reduced, and the economic effect is remarkable.
Description
Technical field
The utility model relates to, and is specifically related to a kind of valve stem cold extrusion die.
Background technology
valve stem part, material is 20 steel, former employing cutting working method is shaped, its complex manufacturing, production efficiency is low, part poor mechanical property, and the shape of blank and size have a significant impact the improvement of die life and cold-extruded part machine direction.
Utility model content
The purpose of this utility model is for solving above-mentioned deficiency, and a kind of valve stem cold extrusion die is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of valve stem cold extrusion die, comprise pull bar, cushion block, in die, overlap, die inner sleeve, discharging ring, upper bolster, centring ring, pressure ring, pressure plate, tight loop, punch, stripper, trim ring, die overcoat, push rod, locating ring, top board, extension spring, portable plate, pressure plate, little push rod, skewback and die shoe, pull bar connects respectively upper bolster and top board, cushion block Bonding pressure backing plate, in die, cover connects die overcoat, die inner sleeve connects in die overlaps, discharging ring connects stripper, upper bolster connects centring ring, centring ring connects tight loop, pressure ring Bonding pressure backing plate, punch Bonding pressure backing plate, trim ring connects locating ring, die overcoat connects cushion block, push rod Bonding pressure backing plate, locating ring connects die shoe, top board device below, extension spring connects portable plate, portable plate connects top board, pressure plate connects cushion block, little push rod Bonding pressure backing plate, skewback Bonding pressure backing plate, die shoe connects locating ring.
The utility model also has some technical characterictics like this:
The operative end surface of described punch is processed into the shape identical with push rod inner bottom surface.
During described valve stem cold extrusion, extrusion pressure reaches 2200MPa.
Described mould adopts elastic tripper.
The utlity model has following useful effect:
The utility model is reasonable in design, adopts cold-extrusion technology to produce valve stem and produces and compare with traditional machining, has improved the mechanical property of valve stem, has improved production efficiency, has reduced the consumption of raw material and the energy, obvious economic.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is valve stem extrusion schematic diagram.
Wherein, 1, pull bar, 2, cushion block, 3, overlap in die, 4, die inner sleeve, 5, discharging ring, 6, upper bolster, 7, centring ring, 8, pressure ring, 9, pressure plate, 10, tight loop, 11, punch, 12, stripper, 13, trim ring, 14, die overcoat, 15, push rod, 16, locating ring, 17, top board, 18, extension spring, 19, portable plate, 20, pressure plate, 21, little push rod, 22, skewback, 23, die shoe, 24, valve stem extrusion.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
embodiment 1
A valve stem cold extrusion die, comprises pull bar 1, cushion block 2, in die, overlap 3, die inner sleeve 4, discharging ring 5, upper bolster 6, centring ring 7, pressure ring 8, pressure plate 9, tight loop 10, punch 11, stripper 12, trim ring 13, die overcoat 14, push rod 15, locating ring 16, top board 17, extension spring 18, portable plate 19, pressure plate 20, little push rod 21, skewback 22 and die shoe 23, pull bar 1 connects respectively upper bolster 6 and top board 15, cushion block 2 Bonding pressure backing plates 9, in die, overlap 3 connection die overcoats 14, die inner sleeve 4 connects in die overlaps 3, discharging ring 5 connects stripper 12, upper bolster 6 connects centring ring 7, centring ring 7 connects tight loop 10, pressure ring 8 Bonding pressure backing plates 9, punch 11 Bonding pressure backing plates 9, trim ring 13 connects locating ring 16, die overcoat 14 connects cushion block 2, push rod 15 Bonding pressure backing plates 9, locating ring 16 connects die shoe 23, top board 17 device below, extension spring 18 connects portable plate 19, portable plate 19 connects top board 17, pressure plate 20 connects cushion block 2, little push rod 21 Bonding pressure backing plates 9, skewback 22 Bonding pressure backing plates 9, die shoe 23 connects locating ring 16, the operative end surface of described punch is processed into the shape identical with push rod inner bottom surface, during described valve stem cold extrusion, extrusion pressure reaches 2200MPa, described mould adopts elastic tripper.
Mold work process is: blank is put into die inner sleeve 4.Patrix is descending with hydraulic press moved cross beam, and punch, die and push rod are by blank extrusion molding.Patrix backhaul, punch is separated with die, if workpiece is stayed on punch, by stripper and discharging ring 5, makes workpiece separated with punch.If workpiece is stayed in die, by mechanical rod-pulling type interlock liftout attachment, workpiece is pushed up from die, this liftout attachment below die shoe with portable plate, when workpiece ejects after a segment distance, by the skewback 22 with inclined-plane, portable plate is strutted, make the bottom surface of push rod unsettled, make it lean on self-weight reset, ready for place blank next time, portable plate resets by the extension spring of its outer ring.
In order to strengthen strength of concave mould, reduce matrix manufacturing cost, extend die life, adopt 3 layers of prestressing combination cavity die structure.Each circle mating surface is made to certain taper (generally get 1 ° 30 '), at room temperature with hydraulic press, carry out pressing.Because valve stem inner chamber is darker, in order to strengthen the intensity of punch, by diameter overstriking more than active section and mill out 3 blowpits, for the discharging ring discharging with 3 interior claw types.
The utility model is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done, within all dropping on protection domain of the present utility model.
Claims (4)
1. a valve stem cold extrusion die, comprise pull bar, cushion block, in die, overlap, die inner sleeve, discharging ring, upper bolster, centring ring, pressure ring, pressure plate, tight loop, punch, stripper, trim ring, die overcoat, push rod, locating ring, top board, extension spring, portable plate, pressure plate, little push rod, skewback and die shoe, it is characterized in that: pull bar connects respectively upper bolster and top board, cushion block Bonding pressure backing plate, in die, cover connects die overcoat, die inner sleeve connects in die overlaps, discharging ring connects stripper, upper bolster connects centring ring, centring ring connects tight loop, pressure ring Bonding pressure backing plate, punch Bonding pressure backing plate, trim ring connects locating ring, die overcoat connects cushion block, push rod Bonding pressure backing plate, locating ring connects die shoe, top board device below, extension spring connects portable plate, portable plate connects top board, pressure plate connects cushion block, little push rod Bonding pressure backing plate, skewback Bonding pressure backing plate, die shoe connects locating ring.
2. a kind of valve stem cold extrusion die as claimed in claim 1, is characterized in that: the operative end surface of described punch is processed into the shape identical with push rod inner bottom surface.
3. a kind of valve stem cold extrusion die as claimed in claim 1, is characterized in that: during described valve stem cold extrusion, extrusion pressure reaches 2200MPa.
4. a kind of valve stem cold extrusion die as claimed in claim 1, is characterized in that: described mould adopts elastic tripper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420235099.9U CN203830450U (en) | 2014-05-09 | 2014-05-09 | Valve mandril cold extrusion mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420235099.9U CN203830450U (en) | 2014-05-09 | 2014-05-09 | Valve mandril cold extrusion mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203830450U true CN203830450U (en) | 2014-09-17 |
Family
ID=51508341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420235099.9U Expired - Fee Related CN203830450U (en) | 2014-05-09 | 2014-05-09 | Valve mandril cold extrusion mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203830450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234289A (en) * | 2015-11-16 | 2016-01-13 | 重庆持恒模具有限公司 | Novel inversely-mounted compound die |
-
2014
- 2014-05-09 CN CN201420235099.9U patent/CN203830450U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234289A (en) * | 2015-11-16 | 2016-01-13 | 重庆持恒模具有限公司 | Novel inversely-mounted compound die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20150509 |
|
| EXPY | Termination of patent right or utility model |