CN201791890U - Tooth profile die and gear fine forging die having same - Google Patents
Tooth profile die and gear fine forging die having same Download PDFInfo
- Publication number
- CN201791890U CN201791890U CN2010205532882U CN201020553288U CN201791890U CN 201791890 U CN201791890 U CN 201791890U CN 2010205532882 U CN2010205532882 U CN 2010205532882U CN 201020553288 U CN201020553288 U CN 201020553288U CN 201791890 U CN201791890 U CN 201791890U
- Authority
- CN
- China
- Prior art keywords
- die
- tooth die
- tooth
- sleeve
- revolving body
- 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
Landscapes
- Forging (AREA)
Abstract
The utility model provides a tooth profile die. The tooth profile die comprises a rotary body (7) with a tooth profile die cavity (8) and a through hole (9), wherein the through hole (9) is coaxial with the rotary body (7) and is communicated with the tooth profile die cavity (8); and the upper part of the outer surface of the rotary body (7) is cylindrical, and the lower part of the outer surface of the rotary body (7) is conical. The utility model also provides a gear fine forging die. The gear fine forging die comprises an upper die (1), a tooth profile die (2'), a pedestal (4) and a lower die sleeve (5), wherein the tooth profile die (2') is positioned between the upper die (1) and the pedestal (4) and is tightly sleeved in the lower die sleeve (5); the tooth profile die (2') is the tooth profile die of the utility model; and the inner wall of the lower die sleeve (5) is a straight wall. The abrasion and the deformation of the lower die sleeve can be reduced through the conicity of the lower part of the rotary body of the tooth profile die when the tooth profile die is pressed, so that the service life of the lower die sleeve is prolonged.
Description
Technical field
The utility model relates to the field of machining of gear, more particularly, and the gear finish forge mould that relates to a kind of tooth die and have this tooth die.
Background technology
The profile of tooth of precision forging gear is to use the gear finish forge mould to forge out.As depicted in figs. 1 and 2, the gear finish forge mould mainly comprises patrix 1, tooth die 2, push rod 3, base 4, lower die-sleeve 5 and middle push rod 6.Described tooth die 2 is cylindrical, between described patrix 1 and described base 4 and tightly be enclosed within the described lower die-sleeve 5.Main working parts in the gear finish forge mould is patrix, tooth die and lower die-sleeve, and the general mode that is press-fitted that adopts of tooth die and lower die-sleeve is assembled together.
Because do not need reprocessing after precision forging gear is forged, this just requires the profile of tooth die cavity of tooth die that higher precision is arranged.In forging process, the main failure mode of tooth die is the profile of tooth distortion of profile of tooth die cavity, causes the profile of tooth of forging to beat overproof.The method whether profile of tooth of the profile of tooth die cavity of present inspection tooth die is out of shape is to check whether the forging of this mould production is qualified, rather than directly checks in the gear finish forge mould.
In the production process of finish forge spare, often to check tooth die.Check when whether tooth die is qualified, at first will use tooth die to be checked to produce a precision forging gear, check then whether overproof the profile of tooth of this precision forging gear beats.If profile of tooth is beated and overproofly just need be changed qualified tooth die and produce with tooth die from extruding from lower die-sleeve.
Therefore aborning, tooth die often will be compressed in lower die-sleeve, extrude, because the tooth die profile is cylindrical, so just causes lower die-sleeve to be easy to wearing and tearing and distortion, so the service life of lower die-sleeve is shorter, only be 1 month average life.
The utility model content
The purpose of this utility model is to provide a kind of tooth die and gear finish forge mould, can reduce the wearing and tearing and the distortion of lower die-sleeve, improves the service life of lower die-sleeve.
To achieve these goals, the utility model provides a kind of tooth die, and this tooth die comprises the revolving body with profile of tooth die cavity and through hole, and described through hole is coaxial with described revolving body and communicate with described profile of tooth die cavity, the top of the outer surface of wherein said revolving body is cylindrical, and the bottom is taper.
Preferably, the tapering of described taper is smaller or equal to 1.5 °.
Preferably, the height on the described top of described revolving body be described revolving body height 1/2nd to 3/4ths between.
Preferably, the bottom of the outer surface of described revolving body has columniform technology step.
The utility model also provides a kind of gear finish forge mould, this mould comprises patrix, tooth die, base and lower die-sleeve, described tooth die is between described patrix and described base and tightly be enclosed within the described lower die-sleeve, wherein, the tooth die that described tooth die provides for utility model, the inwall of described lower die-sleeve are straight wall.
Preferably, the external diameter on the top of described revolving body equals the internal diameter of described lower die-sleeve.
Preferably, described base has through hole, and this through hole is communicated with the through hole of described revolving body and is coaxial, is provided with middle push rod in the through hole of described base, and push rod passes the through hole of described revolving body and joins with described middle push rod.
With respect to prior art, the utlity model has following advantage:
The wearing and tearing of lower die-sleeve and distortion in the time of can reducing to press-fit tooth die by the tapering on the rotary surface of tooth die lower mold core, the service life of having improved lower die-sleeve.
Other feature and advantage of the present utility model will partly be described in detail in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and constitutes the part of specification, is used from explanation the utility model with the following specific embodiment one, but does not constitute restriction of the present utility model.In the accompanying drawings:
Fig. 1 is a gear finish forge mould installation diagram of the prior art;
Fig. 2 is a tooth die of the prior art;
Fig. 3 is the tooth die of a kind of embodiment of the utility model;
Fig. 4 is the gear finish forge mould installation diagram of a kind of embodiment of the utility model.
Reference numerals list
1 patrix
2 tooth dies of the prior art
3 push rods
Push rod base in 4
5 lower die-sleeves
Push rod in 6
7 revolving bodies
8 profile of tooth die cavitys
9 through holes
The tooth die that 2 ' the utility model provides
The tapering of α revolving body 7 bottoms
The whole height of h revolving body 7
The height on t revolving body 7 tops
The specific embodiment
Below by drawings and Examples the technical solution of the utility model is described in further detail.Fig. 3 is the tooth die of a kind of embodiment of the utility model, and Fig. 4 is the installation diagram of the gear finish forge mould of a kind of embodiment of the utility model.
As shown in the figure, the utility model provides a kind of tooth die, and this tooth die comprises the revolving body 7 with profile of tooth die cavity 8 and through hole 9, and described through hole 9 and described revolving body 7 are coaxial and communicate with described profile of tooth die cavity 8, the top of the outer surface of wherein said revolving body 7 is cylindrical, and the bottom is taper.
Because revolving body 7 bottoms are taper, when revolving body 7 was pressed into lower die-sleeve 5, the axis of these two parts can be automatically with one heart, and this tapering α the small bore coaxial cable degree is high more more, axiality is high more, the inner wall abrasion of lower die-sleeve 5 and distortion are more little when press-fiting tooth die.
Preferably, the tapering α of described revolving body 7 bottoms is smaller or equal to 1.5 °.
Stability when guaranteeing the gear finish forge mould course of work, the column part height t of common described revolving body 7 is 1/2nd to 3/4ths of its whole height h.
The surface of the profile of tooth die cavity 8 of tooth die generally is to process by turning, and the instability that produces during for fear of the lathe clamping conical surface guarantees turning accuracy, can also process a columniform technology step on the frustum of a cone end face of described revolving body 7.
The utility model also provides a kind of gear finish forge mould, this mould comprises patrix 1, tooth die 2 ', base 4 and lower die-sleeve 5, described tooth die 2 ' is between described patrix 1 and described base 4 and tightly be enclosed within the described lower die-sleeve 5, wherein, described tooth die 2 ' is a tooth die described in the utility model, and the inwall of described lower die-sleeve 5 is straight wall.
The gear finish forge mould that uses the utility model to provide when described tooth die 2 ' is detected, be compressed into it, extrude described lower die-sleeve 5.Because described tooth die 2 ' bottom is taper, the wearing and tearing of lower die-sleeve 5 and distortion when having reduced to press-fit.In order to guarantee the stability in the described gear finish forge mould production process, the inwall of described lower die-sleeve 5 is straight wall.
In order to guarantee to be closely linked between described tooth die 2 ' and the described lower die-sleeve, the external diameter on the top of described revolving body 7 can equal the internal diameter of described lower die-sleeve 5.
Usually, to from described profile of tooth die cavity, eject after the precision forging gear completion of processing, therefore, can be provided with push rod in the gear finish forge mould.Like this, described base 4 just can have through hole, and this through hole is communicated with the through hole 9 of described revolving body 7 and is coaxial, and push rod 6 in being provided with in the through hole of described base 4, push rod 3 pass the through hole 9 of described revolving body 7 and join with described middle push rod 6.
The wearing and tearing and the distortion of lower die-sleeve when the tapering by tooth die revolving body bottom can reduce to press-fit tooth die, the service life of having improved lower die-sleeve; At columniform technology step of the lower end of described tooth die processing, guaranteed the turning accuracy of profile of tooth die cavity; In the gear finish forge mould, the lower die-sleeve inwall is straight wall, has guaranteed the stability of precision forging gear forging process.
It should be noted that at last: above embodiment is only in order to explanation the technical solution of the utility model but not limit it, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solutions of the utility model.
Claims (7)
1. tooth die, this tooth die comprises the revolving body (7) with profile of tooth die cavity (8) and through hole (9), described through hole (9) is coaxial with described revolving body (7) and communicate with described profile of tooth die cavity (8), it is characterized in that, the top of the outer surface of described revolving body (7) is cylindrical, and the bottom is taper.
2. tooth die as claimed in claim 1 is characterized in that, the tapering of described taper (α) is smaller or equal to 1.5 °.
3. tooth die as claimed in claim 1 is characterized in that, the height (t) on the described top of described revolving body (7) be described revolving body (7) height (h) 1/2nd to 3/4ths between.
4. tooth die as claimed in claim 1 is characterized in that, the bottom of the outer surface of described revolving body (7) has columniform technology step.
5. gear finish forge mould, this gear finish forge mould comprises patrix (1), tooth die (2 '), base (4) and lower die-sleeve (5), described tooth die (2 ') is positioned between described patrix (1) and the described base (4) and tightly is enclosed within described lower die-sleeve (5), it is characterized in that, described tooth die (2 ') is any described tooth die among the claim 1-4, and the inwall of described lower die-sleeve (5) is straight wall.
6. gear finish forge mould as claimed in claim 5 is characterized in that, the external diameter on the top of described revolving body (7) equals the internal diameter of described lower die-sleeve (5).
7. gear finish forge mould as claimed in claim 5, it is characterized in that, described base (4) has through hole, this through hole is communicated with the through hole (9) of described revolving body (7) and is coaxial, be provided with middle push rod (6) in the through hole of described base (4), push rod (3) passes the through hole (9) of described revolving body (7) and joins with described middle push rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205532882U CN201791890U (en) | 2010-09-29 | 2010-09-29 | Tooth profile die and gear fine forging die having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205532882U CN201791890U (en) | 2010-09-29 | 2010-09-29 | Tooth profile die and gear fine forging die having same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201791890U true CN201791890U (en) | 2011-04-13 |
Family
ID=43846812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205532882U Expired - Fee Related CN201791890U (en) | 2010-09-29 | 2010-09-29 | Tooth profile die and gear fine forging die having same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201791890U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722693A (en) * | 2015-03-17 | 2015-06-24 | 青阳县鑫安特汽车零配件有限公司 | Automobile cylindrical gear forging and forming device |
| CN104801650A (en) * | 2015-05-21 | 2015-07-29 | 安阳联达数控精密锻造有限公司 | Tooth die structure for spiral bevel gear forging near-net forming |
-
2010
- 2010-09-29 CN CN2010205532882U patent/CN201791890U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722693A (en) * | 2015-03-17 | 2015-06-24 | 青阳县鑫安特汽车零配件有限公司 | Automobile cylindrical gear forging and forming device |
| CN104801650A (en) * | 2015-05-21 | 2015-07-29 | 安阳联达数控精密锻造有限公司 | Tooth die structure for spiral bevel gear forging near-net forming |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203830627U (en) | Split type anvil machining device for forging tapering spindles | |
| CN201791890U (en) | Tooth profile die and gear fine forging die having same | |
| CN101758078A (en) | Special-shaped ring forgeable piece tool for vehicle hub | |
| CN204338600U (en) | Conical pipe cold-extrusion shaping device | |
| CN204307929U (en) | For interior frock of establishing high annular boss ring forging to forge | |
| CN205732773U (en) | A kind of core shaft die forging cone-shaped inner hole spheroidal graphite bearing holder (housing, cover) | |
| CN203459970U (en) | Special thin-walled machining mould for automotive piston cylinder barrel | |
| CN105499418A (en) | Necking device of ultrathin-wall cylindrical part and application method of necking device | |
| CN104475454B (en) | For interior frock of establishing high annular boss ring forging to forge | |
| CN204221443U (en) | For differential side gear external splines slotting fixture | |
| CN203030767U (en) | Sensor riveting clamp | |
| CN204603058U (en) | A kind of composite die of auto rear_bridge shell cover oiling obturating plug flange impression | |
| CN206763625U (en) | A kind of sleeve of horizontal extruder clear away waste | |
| CN205763969U (en) | Coiling machine lining processing tool | |
| CN208643860U (en) | A kind of spinning mold | |
| CN104690206A (en) | Die for producing axle sleeve part and production method of die | |
| CN205519451U (en) | Starter blank forging die | |
| CN202639381U (en) | Internal expanding tool for machining | |
| CN104550287A (en) | Cold extrusion moulding device for tapered pipe | |
| CN203817261U (en) | Fluted disc forging forming die | |
| CN204396510U (en) | Direction column of motorcycle conical pipe processing mold | |
| CN103990754A (en) | Thick-wall and thin-bottom cup-shaped part machining device | |
| CN201596670U (en) | Guide ring special-shaped forging piece tooling of automobile tyre die | |
| CN203245239U (en) | Tubing high-strength external drum die | |
| CN201596743U (en) | Automobile hub special-shaped ring forging piece tooling |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20170929 |