CN202087619U - Temperature cool extrusion molding die for bevel gear - Google Patents
Temperature cool extrusion molding die for bevel gear Download PDFInfo
- Publication number
- CN202087619U CN202087619U CN2011201619190U CN201120161919U CN202087619U CN 202087619 U CN202087619 U CN 202087619U CN 2011201619190 U CN2011201619190 U CN 2011201619190U CN 201120161919 U CN201120161919 U CN 201120161919U CN 202087619 U CN202087619 U CN 202087619U
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Abstract
The utility model discloses a temperature cool extrusion molding die for a bevel gear, which comprises an upper die and a lower die, wherein the upper die mainly comprises an upper base plate, a male die fixing plate. a base plate, an upper female die and a male die; the upper base plate, the male die fixing plate, the base plate and the upper female die are arranged from top to bottom; the male die penetrates through the center of the base plate and is fixed at the center of the male die fixing plate; the upper female die is arranged at the lower end of the male die; the lower die mainly comprises a lower base plate, a lower female die, a kicker and an ejector rod, wherein the kicker is arranged at the upper end of the ejector rod; the lower female die is sheathed at the upper part of the kicker; the kicker and the ejector rod are arranged in internal stepped holes of the lower base plate; a stress ring is sheathed outside the upper female die; an external stress ring is sheathed outside the stress ring and is fixed through a retainer ring which is arranged outside the external stress ring; a middle layer stress ring is sheathed outside the lower female die and is fixed through a compacting ring which is arranged outside the middle layer stress ring; a through hole is arranged on the female die fixing plate; and a spring which is compacted by the upper base plate and the base plate is arranged inside the through hole. The temperature cool extrusion molding die has the advantages of low machining cost, long service life of gears, high production efficiency, raw material saving and the like.
Description
Technical field
The utility model relates to a kind of extrusion forming device, particularly the warm cold extrusion molding mould of a kind of bevel gear.
Background technology
Gear is one of the most basic machine components as transfer motion power and motion, and range of application is extremely wide, is widely used in key areas such as automobile, Aeronautics and Astronautics, instrument.In machine driving, because bevel gear meshing efficiency height, noise is low and used in a large number.At present domestic bevel gear processing still is processed as the master with traditional machine cut, and it is many to expend man-hour, and using rate of metal is low, and the cost height has especially cut off the metal streamline of metal material in process, cause the decline of gear teeth intensity and fatigue life.In recent years, use plastic forming technology and replace traditional machine cut processing method, more and more be much accounted of.Adopt warm cold extrusion shaped method machining of bevel gears, can improve the mechanical performance of part, have the production efficiency height, save raw material, advantage such as improve the quality of products and reduce production costs, and also product precision height, the surface quality of moulding are good.But seldom adopting warm cold extrusion shaped method to be applied to the production of bevel gear at home at present, mainly is the processing that is used for spur gear, because bevel gear temperature cold-extrusion technology complicated processing difficulty, domestic successful experience not as yet shows still in exploratory development.
Summary of the invention
At above-mentioned the deficiencies in the prior art part, the utility model aims to provide the warm cold extrusion molding mould of a kind of bevel gear that has the production efficiency height, saves raw material, improves the quality of products and reduce production costs, has solved the problem that above-mentioned prior art exists effectively.
To achieve these goals, the technical solution adopted in the utility model is: the warm cold extrusion molding mould of bevel gear, comprise upper die and lower die two parts, patrix is mainly by upper padding plate, punch retainer, backing plate, upper cavity die and punch are formed, described upper padding plate, punch retainer, backing plate and upper cavity die are provided with from top to bottom, described punch connects the backing plate center and is fixed in the punch retainer in the heart, upper cavity die is arranged on the punch lower end, counterdie is mainly by lower bolster, lower cavity die, kicker and push rod are formed, kicker is arranged on the push rod upper end, described lower cavity die is sleeved on kicker top, kicker and push rod are arranged in the interior stepped hole of lower bolster, described upper cavity die is with circle stress outward, and circle stress is with the external carbuncle circle outward, and its peripheral hardware has spacing collar to fix; Lower cavity die is with the middle level circle stress outward, is provided with compacting ring outside it and fixes; On punch retainer, be provided with through hole, the through hole built-in spring, and this spring is compressed by upper padding plate and backing plate.
As preferably: described upper cavity die and lower cavity die are that the Cr12MoV of HRC58-62 makes by heat treatment hardness.
As preferably: described circle stress, external carbuncle circle and middle level circle stress are that 45 steel of HRC40-47 are made by heat treatment hardness.
As preferably: described punch is that the Cr12MoV of HRC58-62 makes by heat treatment hardness.
During work, blank is put into lower cavity die, blank can be selected for use moulding better, the various metal materials that resistance of deformation is not high, in the press course of exerting pressure, because the unit squeeze pressure of upper cavity die molding gear face portion is bigger, therefore adopt three layers of prestressing combination die forming by upper cavity die, circle stress and external carbuncle circle, three layers of prestressing combination die are provided with suitable radial interference amount and axial lamination volume, each circle mating surface is processed 1.5 gradients, room temperature pressing on press, pressing order are earlier the outer ring to be pressed together on the circle stress, are pressed into die at last again; The two-layer prestressing combination die that lower floor adopts lower cavity die and middle level circle stress to form.The die material adopts Cr12MoV, and heat treatment hardness HRC58 ~ 62 have high strength, thermohardening is good, the good characteristics of wearability.The outer reinforcement loop material of die is 45 steel, heat treatment hardness HRC40 ~ 47.
Extruding punch material is Cr12MoV, heat treatment hardness HRC58 ~ 62, and guaranteeing has enough intensity, rigidity and wearability, satisfies the requirement of condition of work.The positional precision of, die protruding for guaranteeing adopts the standard die set that has guide pillar, guide pin bushing, and the external carbuncle circle cooperates with the middle level circle stress simultaneously, plays further guide effect, satisfies the requirement of extrusion axiality.
After the extruding, extrusion is stayed on the punch, and during the press backhaul, spring and backing plate are finished the discharging action.The liftout tank promotion push rod of hydraulic press, the extrusion that kicker will drop in the lower cavity die eject.
The utility model processing cost is low, and the service life of gear of producing is long, and the production efficiency height, saves raw material, improved product quality, has reduced production cost, the suitable popularization.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Embodiment:
Referring to Fig. 1, the warm cold extrusion molding mould of this bevel gear comprises upper die and lower die two parts, patrix is mainly by upper padding plate 3, punch retainer 4, backing plate 9, upper cavity die 6 and punch 5 are formed, described upper padding plate 3, punch retainer 4, backing plate 9 and upper cavity die 6 are provided with from top to bottom, described punch 5 connects backing plate 9 centers and is fixed in the punch retainer 4 in the heart, upper cavity die 6 is set in punch 5 lower ends, counterdie is mainly by lower bolster 15, lower cavity die 14, kicker 13 and push rod 12 are formed, kicker 13 is arranged on push rod 12 upper ends, described lower cavity die 14 is sleeved on kicker 13 tops, kicker 13 and push rod 12 are arranged in the interior stepped hole of lower bolster 15, outside described upper cavity die 6, be with circle stress 8, the circle stress 8 outer external carbuncle circles 10 that are with, its peripheral hardware has spacing collar 1 fixing; The lower cavity die 14 outer middle level circle stresses 11 that are with, its outer compacting ring 16 that is provided with is fixed; On punch retainer 4, be provided with through hole, through hole built-in spring 2, this spring 2 is compressed by upper padding plate 3 and backing plate 9.
During installation, upper padding plate 3 contacts with the upper punch of press, and described spacing collar 1 upper end is fixed on the upper punch; Lower bolster 15 contacts with the low punch of press, and the lower end and the low punch of described compacting ring 16 are fixed.
During work, blank 7 is put into lower cavity die 14, blank can be selected for use moulding better, the various metal materials that resistance of deformation is not high, in the press course of exerting pressure, because the unit squeeze pressure of upper cavity die 6 molding gear face portion is bigger, therefore adopt by upper cavity die 6, three layers of prestressing combination die that circle stress 8 and external carbuncle circle 10 are formed, three layers of prestressing combination die are provided with suitable radial interference amount and axial lamination volume, each circle mating surface is processed 1.5 gradients, room temperature pressing on press, pressing order are earlier external carbuncle circle 10 to be pressed together on the circle stress 8, are pressed into upper cavity die 6 at last again; The two-layer prestressing combination die that lower floor adopts lower cavity die 14 and middle level circle stress 11 to form.Described upper cavity die 6 adopts Cr12MoV with the material of lower cavity die 14, and heat treatment hardness HRC58 ~ 62 have high strength, thermohardening is good, the good characteristics of wearability.The material of described circle stress 8, external carbuncle circle 10 and middle level circle stress 11 is 45 steel, heat treatment hardness HRC40 ~ 47.
The material of described punch 5 is Cr12MoV, heat treatment hardness HRC58 ~ 62, and guaranteeing has enough intensity, rigidity and wearability, satisfies the requirement of condition of work.The positional precision of, die protruding for guaranteeing adopts the standard die set that has guide pillar, guide pin bushing, and external carbuncle circle 10 cooperates with middle level circle stress 11 simultaneously, plays further guide effect, satisfies the requirement of extrusion axiality.
After the extruding, extrusion is stayed on the punch, and during the press backhaul, spring 2 and backing plate 9 are finished the discharging action.The liftout tank promotion push rod 12 of press, the extrusion that kicker 13 will drop in the lower cavity die 14 eject.
Claims (4)
1. the warm cold extrusion molding mould of bevel gear, comprise upper die and lower die two parts, patrix is mainly by upper padding plate, punch retainer, backing plate, upper cavity die and punch are formed, described upper padding plate, punch retainer, backing plate and upper cavity die are provided with from top to bottom, described punch connects the backing plate center and is fixed in the punch retainer in the heart, upper cavity die is arranged on the punch lower end, counterdie is mainly by lower bolster, lower cavity die, kicker and push rod are formed, kicker is arranged on the push rod upper end, described lower cavity die is sleeved on kicker top, kicker and push rod are arranged in the interior stepped hole of lower bolster, it is characterized in that: described upper cavity die is with circle stress outward, circle stress is with the external carbuncle circle outward, and its peripheral hardware has spacing collar to fix; Lower cavity die is with the middle level circle stress outward, is provided with compacting ring outside it and fixes; On punch retainer, be provided with through hole, the through hole built-in spring, and this spring is compressed by upper padding plate and backing plate.
2. the warm cold extrusion molding mould of bevel gear according to claim 1 is characterized in that: described upper cavity die and lower cavity die are that the Cr12MoV of HRC58-62 makes by heat treatment hardness.
3. the warm cold extrusion molding mould of bevel gear according to claim 1 is characterized in that: described circle stress, external carbuncle circle and middle level circle stress are that 45 steel of HRC40-47 are made by heat treatment hardness.
4. the warm cold extrusion molding mould of bevel gear according to claim 1 is characterized in that: described punch is that the Cr12MoV of HRC58-62 makes by heat treatment hardness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201619190U CN202087619U (en) | 2011-05-20 | 2011-05-20 | Temperature cool extrusion molding die for bevel gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201619190U CN202087619U (en) | 2011-05-20 | 2011-05-20 | Temperature cool extrusion molding die for bevel gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202087619U true CN202087619U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201619190U Expired - Fee Related CN202087619U (en) | 2011-05-20 | 2011-05-20 | Temperature cool extrusion molding die for bevel gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202087619U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847807A (en) * | 2012-09-17 | 2013-01-02 | 江苏太平洋精锻科技股份有限公司 | Blind-hole straight bevel gear tooth reshaping and internal spline cold extruding die |
| CN107303589A (en) * | 2016-04-18 | 2017-10-31 | 河北工业大学 | A kind of method and mould for producing lead joint terminal |
| CN107812797A (en) * | 2016-09-14 | 2018-03-20 | 西安航空学院 | A kind of Ultra-fine Grained, nanocrystalline material prepare mould and method |
| CN111546020A (en) * | 2020-05-27 | 2020-08-18 | 苏州联咏成精密机械有限公司 | Shunting cold extrusion high-precision forming method for automobile spiral bevel gear |
| CN113909326A (en) * | 2021-08-31 | 2022-01-11 | 宁波固强机械有限公司 | Die for manufacturing cover plate of energy recovery device and manufacturing method of cover plate of energy recovery device |
-
2011
- 2011-05-20 CN CN2011201619190U patent/CN202087619U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847807A (en) * | 2012-09-17 | 2013-01-02 | 江苏太平洋精锻科技股份有限公司 | Blind-hole straight bevel gear tooth reshaping and internal spline cold extruding die |
| CN102847807B (en) * | 2012-09-17 | 2015-02-18 | 江苏太平洋精锻科技股份有限公司 | Blind-hole straight bevel gear tooth reshaping and internal spline cold extruding die |
| CN107303589A (en) * | 2016-04-18 | 2017-10-31 | 河北工业大学 | A kind of method and mould for producing lead joint terminal |
| CN107812797A (en) * | 2016-09-14 | 2018-03-20 | 西安航空学院 | A kind of Ultra-fine Grained, nanocrystalline material prepare mould and method |
| CN111546020A (en) * | 2020-05-27 | 2020-08-18 | 苏州联咏成精密机械有限公司 | Shunting cold extrusion high-precision forming method for automobile spiral bevel gear |
| CN113909326A (en) * | 2021-08-31 | 2022-01-11 | 宁波固强机械有限公司 | Die for manufacturing cover plate of energy recovery device and manufacturing method of cover plate of energy recovery device |
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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: 20111228 Termination date: 20120520 |