CN201768861U - Precision forging die used for automobile reduction gear blank - Google Patents
Precision forging die used for automobile reduction gear blank Download PDFInfo
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- CN201768861U CN201768861U CN2010205146825U CN201020514682U CN201768861U CN 201768861 U CN201768861 U CN 201768861U CN 2010205146825 U CN2010205146825 U CN 2010205146825U CN 201020514682 U CN201020514682 U CN 201020514682U CN 201768861 U CN201768861 U CN 201768861U
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- forging die
- forging
- precision forging
- car deceleration
- millimeters
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Abstract
The utility model relates to a precision forging die used for automobile reduction gear blank in the technical field of metal forging, comprising an upper roller and a lower roller that are respectively positioned above and below a gear to be forged, wherein the upper roller comprises a positioning seat fixed on a machine tool, a tightening cap and a fastening bolt; and the lower roller comprises a lower supporting shaft and a material blocking plate. The device combines a plurality of procedures into a whole, thus being capable of effectively reducing the processing manufacturing steps and guaranteeing the product quality.
Description
Technical field
The utility model relates to a kind of mould structure of metal forging technical field, specifically is a kind of precision forging die that is used for the car deceleration wheel blank.
Background technology
The deceleration tooth that is used for heavy-duty car is bigger in the demand of automotive field, and such deceleration tooth generally all needs to adopt the open die forging, impressing forging moulding, and punch press is cut edge.Do like this, waste material, the required equipment tonnage of moulding is bigger, and required electric energy is also bigger, forging metal streamline tear fracture.The technological process of our factory traditional mode of production deceleration tooth is: heating in medium frequency-750KG pneumatic hammer jumping-up-1600T friction press moulding-400T single-point is cut edge, punching.Total equipment power consumption is 555KW, and action required worker is 7 people.
The reaming moulding is the distinctive forming method of annular element, and than common forging, it has bigger economic technology superiority.Be characterized in: 1, the equipment needed thereby tonnage is little, compares with die forging, and mould and workpiece contact area are little, and deformation force is little, uses little tonnage equipment just can make bigger ring.2, the stock utilization height has saved pattern draft and overlap with respect to forging.The reaming base only need be towards aperture.Ring sectional dimension, shape more approach finished product, have both reduced the machining amount, have saved raw material again.3, inherent quality is good, and the reaming distortion is a radial compression, circumferentially extends.The ring metal is arranged continuously along circumference, and the intensity height is wear-resisting again.4, working condition is good, does not have impact during reaming, and vibration and hot-tempered sound are all little, and working condition is greatly improved.
With Jiangling car deceleration tooth is the process that example is set forth the reaming moulding process, and as shown in Figure 1, this forging open die forging, impressing forging needs 5.24 kilograms of materials, 4.3 kilograms of chambering process materials.The technological process of reaming moulding process is: heating in medium frequency-630T high energy jumping-up, ejection--punching of 100T punch press--D250 staving press moulding.Total equipment power consumption is 452.5KW, and operative employee's number is 5 people.See the reaming moulding process than open die forging, impressing forging difficulty on friction press from design angle, 1: ejection is had higher requirement.2: the hole expansion die design is difficult.Analyze above forging drawing as can be known open die forging, impressing forging as long as just passable according to forging drawing designing mould die cavity, and the necessary ejection of reaming moulding process, and forging stock must be similar to the forging drawing shape in advance, and weight can meet forging drawing and tolerance, and size also can reach the forging drawing requirement after expanding stone roller.Set earlier to grind and expand than K, K is the ratio in aperture with the aperture of ejection figure of forging drawing.Too big operating efficiency and the bottom roll intensity of influencing of K, K is too little, and Kong Tietai is big, then can not show material-saving.Get 1.9 through comprehensive relatively K.The aperture of ejection figure is decided to be φ 58, and again according to the constancy of volume law, it is wheel rim and wheel former two parts that forging drawing is torn open.From φ 151.5 incisions, the rim section weight of forging drawing is 2.96KG, and spoke plate portion weight is 1.06KG.This is the basis of design ejection figure, will consider that also forging can thicken a little in the process of rolling, and the tolerance of forging drawing, factors such as blanking error, and ejection figure weight should be slightly larger than forging drawing weight.Through calculating ejection figure rim section weight is 3.09K6, and spoke plate portion weight is 1.66KG, and ejection figure is shown in Fig. 1 b.
Perforating die is very simple, as long as pierce punch equals φ 58, the punching seat can prevent out the blank distortion.Do not given unnecessary details at this.Difficult is the hole expansion die design, because it is a mould, die cavity will satisfy forging drawing, and favorable manufacturability will be arranged.Clearly as common chambering process, bottom roll is opened a stripe shape groove and is carried out reaming, and that is impossible.Dark type groove is (hot because bottom roll will be made single face 21.8, it will satisfy former single face width), also to add upper bottom portion axle core, also require the axle core that certain intensity will be arranged, the external diameter of bottom roll is just bigger like this, and the hole that goes out blank is greater than the bottom roll external diameter, just can put the type groove into, this material-saving that just is far from being, technological feasibility has not had yet.
Through the retrieval to prior art, forging the car deceleration tooth at present is based on open type forging, particularly heavy forging basically, and it does not meet the requirement of energy-saving and emission-reduction.Ejection on staving press is also arranged among the colleague, and then open type forges, it generally is used to forge driven tooth, can alleviate machine utilization, but material-saving not.
The utility model content
The utility model provides a kind of precision forging die that is used for the car deceleration wheel blank at the prior art above shortcomings, and the step that simplifies the operation of the improvement by mould structure has reduced production cost.
The utility model is achieved through the following technical solutions, the utility model comprises: the topping roll and the bottom roll that lay respectively at gear to be forged above and below, wherein: topping roll comprises: be fixed in positioning seat, friction top and fastening bolt on the lathe, bottom roll comprises: lower support axle and striker plate.
Described bottom roll and the contacted position of lower support axle are provided with the tapering engaging structure, and this tapering engaging structure adopts the double thread tension.
Described bottom roll is provided with the different type groove of two road external diameters, and is rolling to realize two roads.
During this device busy, the main shaft band topping roll and is rotated counterclockwise, and slide block rolls workpiece downwards, and bottom roll is done reverse rotation with topping roll under the frictional force effect.
Compared with prior art, this device is an one in conjunction with multiple working procedure, can effectively reduce the technology manufacturing step and guarantee product quality; Practical operation proves: the utility model blanking 4.3kg; Total equipment power consumption 452.5kW; Operative employee 5 people, and feeding intake of adopting that prior art open die forging, impressing forging moulding process needs under the approaching situation of output and power consumption all reaches 5.24kg and 555kW.
Description of drawings
Fig. 1 is the prior art schematic diagram;
Wherein: Fig. 1 a is a forging drawing, and Fig. 1 b is ejection figure
Fig. 2 is the utility model front view;
Fig. 3 is the utility model side view;
Fig. 4 is local enlarged diagram;
Wherein: Fig. 4 a is the topping roll schematic diagram, and Fig. 4 b is the bottom roll schematic diagram.
The specific embodiment
Below embodiment of the present utility model is elaborated; present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figures 2 and 3, this device comprises: the topping roll 1 and the bottom roll 2 that lay respectively at gear to be forged above and below, wherein: topping roll 1 comprises: be fixed in positioning seat 3, friction top 4 and fastening bolt 5 on the lathe, bottom roll 2 comprises: lower support axle 6 and striker plate 7.
Described bottom roll 2 and lower support axle 6 contacted positions are provided with tapering engaging structure 8, and this tapering engaging structure adopts the double thread tension.
Described lower support axle 6 is provided with down and rolls wheel 9, and to be respectively equipped with two road type grooves 10,11 rolling to realize two roads rolling wheel 9 front and back down, wherein:
7.5 millimeters of the degree of depth of the first type groove 10,15.5 millimeters of width;
21.8 millimeters of the degree of depth of the second type groove 11,15.5 millimeters of width.
This device is when grinding system, rolling wheel down upward grinds the expansion of the hole of φ 58 greater than φ 90 near the first type groove of end face, again less than the aperture of forging drawing, to take out blank then smoothly and put into the second type groove, carry out formation rolling, the centre-to-centre spacing of rolling two road type grooves of wheel up and down must be consistent, and can not warp and fracture when workpiece is subjected to rolling, otherwise it is big that the plane run-out tolerance can appear in forging, and this just requires to make and debug mould personnel correlation technique on top of.
Reaming moulding process and open type are forged and reaming ejection technology is compared and had a clear superiority in, and are example with this case, can material-saving 0.94kg/ only, open die forging, impressing forging moulding on 1600T rubs press needs seven people altogether, the reaming moulding then needs ejection on 630T, only needs five people.The cost efficiency effect is clearly.This device key point be top and bottom rolls with two road type grooves, finish technologic two links, the deceleration tooth of this type of shape of direct forming.
Claims (6)
1. precision forging die that is used for the car deceleration wheel blank, it is characterized in that, comprise: the topping roll and the bottom roll that lay respectively at gear to be forged above and below, wherein: topping roll comprises: be fixed in positioning seat, friction top and fastening bolt on the lathe, bottom roll comprises: lower support axle and striker plate.
2. the precision forging die that is used for the car deceleration wheel blank according to claim 1 is characterized in that, described bottom roll and the contacted position of lower support axle are provided with the tapering engaging structure.
3. the precision forging die that is used for the car deceleration wheel blank according to claim 1 is characterized in that, described lower support axle is provided with down and rolls wheel.
4. the precision forging die that is used for the car deceleration wheel blank according to claim 3 is characterized in that, is respectively equipped with two road type grooves in the following front and back of rolling wheel of described lower support axle.
5. the precision forging die that is used for the car deceleration wheel blank according to claim 4 is characterized in that, 7.5 millimeters of the degree of depth of the described first type groove, 15.5 millimeters of width.
6. the precision forging die that is used for the car deceleration wheel blank according to claim 4 is characterized in that, 21.8 millimeters of the degree of depth of the described second type groove, 15.5 millimeters of width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205146825U CN201768861U (en) | 2010-09-02 | 2010-09-02 | Precision forging die used for automobile reduction gear blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205146825U CN201768861U (en) | 2010-09-02 | 2010-09-02 | Precision forging die used for automobile reduction gear blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201768861U true CN201768861U (en) | 2011-03-23 |
Family
ID=43748694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205146825U Expired - Lifetime CN201768861U (en) | 2010-09-02 | 2010-09-02 | Precision forging die used for automobile reduction gear blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201768861U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108237195A (en) * | 2016-12-27 | 2018-07-03 | 天津市信力达齿轮制造有限公司 | A kind of processing mold of precise inner gear |
| CN108778556A (en) * | 2016-02-11 | 2018-11-09 | 埃科罗尔刀具技术股份公司 | The rolling equipment of workpiece for roll-in toothed portion and corresponding method |
-
2010
- 2010-09-02 CN CN2010205146825U patent/CN201768861U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108778556A (en) * | 2016-02-11 | 2018-11-09 | 埃科罗尔刀具技术股份公司 | The rolling equipment of workpiece for roll-in toothed portion and corresponding method |
| US11638981B2 (en) | 2016-02-11 | 2023-05-02 | Ecoroll Ag Werkzeugtechnik | Rolling device for rolling work pieces having a toothing, and associated method |
| CN108237195A (en) * | 2016-12-27 | 2018-07-03 | 天津市信力达齿轮制造有限公司 | A kind of processing mold of precise inner gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI AUTOMOTIVE TRANSMISSION CO., LTD. Free format text: FORMER OWNER: SHANGHAI BAOJIE VEHICLE PARTS FORGING AND PRESS CO. LTD Effective date: 20150305 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201818 JIADING, SHANGHAI TO: 201822 JIADING, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150305 Address after: 201822 Yecheng Road, Shanghai, No. 506, No. Patentee after: Shanghai Automotive Transmission Co., Ltd. Address before: 201818 Shanghai city Jiading District Jiajian Road No. 258 Patentee before: Shanghai Baojie Vehicle Parts Forging and Press Co. Ltd |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110323 |