CN103056264A - Closed cold-temperature precision forging die for straight-tooth bevel gear - Google Patents
Closed cold-temperature precision forging die for straight-tooth bevel gear Download PDFInfo
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- CN103056264A CN103056264A CN2012105172518A CN201210517251A CN103056264A CN 103056264 A CN103056264 A CN 103056264A CN 2012105172518 A CN2012105172518 A CN 2012105172518A CN 201210517251 A CN201210517251 A CN 201210517251A CN 103056264 A CN103056264 A CN 103056264A
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Abstract
The invention relates to the technical field of dies, in particular to a closed cold-temperature precision forging die for a straight-tooth bevel gear. The closed cold-temperature precision forging die for the straight-tooth bevel gear comprises a precision forging upper die, a precision forging lower die and an upper punch. The precision forging upper die is formed by combining a plurality of upper die units, each upper die unit is provided with a corresponding driving mechanism, the upper die units are mutually connected under driving of the driving mechanisms and are enclosed to form the precision forging upper die or the upper die units can be separated in scattering mode to facilitate forge piece taking out, and a channel used for the upper punch to pass through is arranged at the mutually connected upper ends of all the upper die units. The precision forging die is not provided with a lower punch so that manufacture cost is reduced, die assembling errors are reduced and forging accuracy is improved. The precision forging die can be form parts with complex shapes in once forming mode and accordingly is high in production efficiency. Simultaneously, metal flow lines are continuously distributed along the appearance of the forge pieces during forging so that the forge pieces are good in mechanical property.
Description
Technical field
The present invention relates to technical field of mold, be specifically related to the cold temperature finish forge mould of a kind of enclosed for straight bevel gear.
Background technology
Near Shape Forging Technology is clean forming technique, refer to part forming after, only need a small amount of processing or do not reprocess, just can be as the forming technique of mechanical component, namely manufacturing is near the workpiece blank of part shape.More traditional forming technique has reduced follow-up cutting output, has reduced material, energy resource consumption, manufacturing procedure, significantly improves production efficiency and product quality, reduces production costs, and improves the market competitiveness of product.
Be applied at present the precision forging technology produced a lot.Can be divided into hot finish forge, cold closed-die forging, warm finish forge, compound finish forge and isothermal precision forging etc. by shaping temperature difference.Wherein employed upper and lower mould all is sub-assembly in the closed-die forging process technology in the cold closed-die forging, formed by upper cavity die, upper punch, lower cavity die and low punch respectively, in the forging and molding process, first upper and lower die closure is sealed die cavity to form, simultaneously it is applied enough pressure, then use, low punch carries out extrusion molding to the blank of sealing in the die cavity and obtain forging.But in the cold-forging forming process, workpiece plasticity is poor, and resistance of deformation is large, to mould and equipment require high, and the part of very difficult shaped structure complexity, simultaneously existing mould structure is complicated, production cost is higher, therefore need to be improved.
Summary of the invention
The purpose of this invention is to provide the cold temperature finish forge mould of a kind of enclosed for straight bevel gear, the part that this mould can the once-forming complicated shape, production efficiency is high; Metal streamline is along forging profile continuous distributed in the forging process simultaneously, and the mechanical property of forging is better; This mould is simple in structure in addition, and manufacturing cost is lower.
For achieving the above object, the present invention has adopted following technical scheme: the cold temperature finish forge mould of a kind of enclosed for straight bevel gear, comprise finish forge patrix, finish forge counterdie and upper punch, described finish forge patrix is combined by some upper die unit, each piece upper die unit all is provided with the driving mechanism corresponding with it, and described upper die unit is in to be connected with each other and to enclose to consist of the finish forge patrix and scatter under the driving of driving mechanism separates so that take out the two states of forging; The upper end that described each upper die unit is connected with each other is provided with the passage that passes through for upper punch.
Simultaneously, the present invention can also be able to further realization by following technical measures:
Preferably, the die joint between described finish forge patrix and the finish forge counterdie is the plane, and each upper die unit that forms the finish forge patrix under the effect of driving mechanism along the die joint translation.
Further, described driving mechanism comprises that the Hough with the upper die unit Joint connects frame and power source, described Hough connects frame and is block, and block Hough connects the outside that frame is coated on upper die unit, and Hough connect frame along pressing direction and along the size of die joint direction all greater than the size of upper die unit; The side that described Hough connects paralleling with die joint of frame and deviates from upper die unit links to each other with the drive end of power source; The upper end that is connected with each other that described each Hough connects frame is provided with the passage that passes through for upper punch.
Preferably, described power source is the high-voltage oil cylinder that links to each other with oil pump.
Further, the downside of described finish forge counterdie is provided with base, and the finish forge counterdie is embedded in the described base, and the upper surface of finish forge counterdie is mutually concordant with the upper surface of base; Each upper die unit of described composition finish forge patrix all is arranged on the upper surface of base, and the upper surface of the lower surface of each upper die unit and base formation is slidingly matched.
Preferably, it is mutually concordant with the lower surface of upper die unit that Hough connects the lower surface of frame, and the Hough upper surface that connects the lower surface of frame and base consists of and is slidingly matched.
Preferably, described finish forge patrix is the profile of tooth die, and the finish forge counterdie is the back cone die.
The course of work of the present invention and beneficial effect are:
1), the finish forge patrix in this mould is combined by some upper die unit, now blank is placed in the finish forge counterdie during forging, then each upper die unit is enclosed under the effect of driving mechanism together to consist of a complete finish forge patrix, the finish forge patrix is pressed against the upside of finish forge counterdie tightly under the effect of driving mechanism simultaneously, forms the die cavity of sealing this moment between finish forge patrix and the finish forge counterdie; Upper punch passes each upper die unit upper end under such as the effect of electric screw press from top to bottom at forcing press and encloses the passage that forms and stretch in the sealing die cavity, upper punch to described blank extrusion molding for setting the forging of shape; After punching press finished, each upper die unit scattered under the effect of driving mechanism separately, thereby is convenient to take out forging, and this moment, whole forging process finished.
In said process, the die joint between described finish forge patrix and the finish forge counterdie is the plane, and each upper die unit that forms the finish forge patrix under the effect of driving mechanism along the die joint translation.Because blank will be along the Direction distortion of upper die unit translation in being forged into the process of forging, therefore the force-bearing situation of upper die unit is better, and the compression situation of blank in forging process is also comparatively good, be that the plasticity of blank when forging in this mould is better, therefore use the part that this mould can the once-forming complicated shape, production efficiency is high.
2), this mould has Hough to connect frame in the arranged outside along the upper die unit translation direction, described Hough connects frame and is block, and Hough to connect frame also be that the size of upper die unit translation direction is all greater than the size of upper die unit along the pressing direction of upper punch with along the die joint direction; This setup is so that upper die unit is held around in the Hough of bulk connects in the frame, and the described Hough side that connects paralleling with die joint of frame and deviate from upper die unit links to each other with the drive end of power source simultaneously.Then in forging process, driving mechanism connects frame by Hough upper die unit is applied enough pressure, so that upper die unit is enclosed in together when the upper punch punching press tightly, thereby not only be easy to control the shape and size of forging, and intensity and the precision of forging the gained forging are all higher, and surface quality is also better.
3), the finish forge counterdie in this mould is embedded in the described base, the upper surface of finish forge counterdie is mutually concordant with the upper surface of base simultaneously, this structure is so that base has also applied enough pressure to the finish forge counterdie in forging process, thereby guaranteed the accuracy of forging, and improved the forging effect to blank.
Low punch is not set in this mould, thereby has not only reduced manufacturing cost, also reduced the rigging error of mould, further improved the accuracy of forging.
4), this mould structure is simple, production cost is lower, and the product dimensional accuracy is high.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is finish forge patrix and the finish forge counterdie structural representation when not closed.
Structural representation when Fig. 3 is finish forge patrix and finish forge counterdie closure.
The implication of mark is as follows among the figure:
Lower 30-base, 40-upper punch of 10-lathe seat of honour, 20-lathe
50-finish forge patrix, 51-upper die unit, 60-finish forge counterdie, 70-Hough connects frame
80-high-voltage oil cylinder, 90-blank
The specific embodiment
The cold temperature finish forge mould of a kind of enclosed for straight bevel gear as shown in Figure 1, comprise finish forge patrix 50, finish forge counterdie 60 and upper punch 40, described finish forge patrix 50 is combined by some upper die unit 51, each piece upper die unit 51 all is provided with the driving mechanism corresponding with it, and described upper die unit 51 is in to be connected with each other and to enclose to consist of finish forge patrix 50 and scatter under the driving of driving mechanism separates so that take out the two states of forging 90; The upper end that described each upper die unit 51 is connected with each other is provided with the passage that passes through for upper punch 40.
Preferably, the die joint between described finish forge patrix 50 and the finish forge counterdie 60 is the plane, and each upper die unit 51 that forms finish forge patrix 50 under the effect of driving mechanism along the die joint translation.
Further, as shown in Figure 1, 2, described driving mechanism comprises that the Hough with upper die unit 51 Joints connects frame 70 and power source, described Hough connects frame 70 and is block, block Hough connects the outside that frame 70 is coated on upper die unit 51, and Hough connect frame 70 along pressing direction and along the size of die joint direction all greater than the size of upper die unit 51; The side that described Hough connects paralleling with die joint of frame 70 and deviates from upper die unit 51 links to each other with the drive end of power source; The upper end that is connected with each other that described each Hough connects frame 70 is provided with the passage that passes through for upper punch 40.
Preferably, described power source is the high-voltage oil cylinder 80 that links to each other with oil pump, and the side that deviates from upper die unit 51 that piston rod 81 and the Hough of high-voltage oil cylinder 80 connects frame 70 links to each other.
Further, the downside of described finish forge counterdie 60 is provided with base 30, and finish forge counterdie 60 is embedded in the described base 30, and the upper surface of finish forge counterdie 60 is mutually concordant with the upper surface of base 30; Each upper die unit 51 of described composition finish forge patrix 50 all is arranged on the upper surface of base 30, and the upper surface of the lower surface of each upper die unit 51 and base 30 formation is slidingly matched.
Preferably, it is mutually concordant with the lower surface of upper die unit 51 that Hough connects the lower surface of frame 70, and the Hough upper surface that connects the lower surface of frame 70 and base 30 consists of and is slidingly matched.
Preferably, described finish forge patrix 50 is the profile of tooth die, and finish forge counterdie 60 is the back cone die.
Below in conjunction with accompanying drawing the course of work of the present invention is described further.
As shown in Figure 2, when forging beginning, high-voltage oil cylinder 80 orders about Hough by piston rod 81 and connects frame 70 and outwards disperse translation along die joint, and Hough connects frame 70 and drives immediately the upper die unit corresponding with it 51 outside translations; Then operating personnel put into finish forge counterdie 60 with blank 90, then each upper die unit 51 is enclosed under the effect of high-voltage oil cylinder 80 together to consist of a complete finish forge patrix 50, finish forge patrix 50 is pressed against the upside of finish forge counterdie 60 tightly under the effect of high-voltage oil cylinder simultaneously, formation is contained in wherein die cavity with blank 90 between this moment finish forge patrix 50 and the finish forge counterdie 60, as shown in Figure 3; Upper punch 40 passes each upper die unit 51 upper ends under such as the effect of electric screw press from top to bottom at forcing press and encloses the passage that forms and stretch in the described sealing die cavity, and 40 pairs of described blank 90 extrusion moldings of upper punch are for setting the forging of shape; After punching press finished, each upper die unit 51 scattered under the effect of high-voltage oil cylinder 80 separately, thereby is convenient to take out forging, and this moment, whole forging process finished.
Adopt this mould to forge, can make the forging equipment investment reduce 60%, the forging part utilization rate brings up to 80%～90%, and energy savings is more than 20%, and production efficiency improves 30% simultaneously.
Above-described embodiment is described preferred embodiment of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (7)
1. cold temperature finish forge mould of enclosed that is used for straight bevel gear, comprise finish forge patrix (50), finish forge counterdie (60) and upper punch (40), it is characterized in that: described finish forge patrix (50) is combined by some upper die unit (51), each piece upper die unit (51) all is provided with the driving mechanism corresponding with it, and described upper die unit (51) is in to be connected with each other and to enclose to consist of finish forge patrix (50) and scatter under the driving of driving mechanism separates so that take out the two states of forging (90); The upper end that described each upper die unit (51) is connected with each other is provided with the passage that passes through for upper punch (40).
2. the cold temperature finish forge mould of the enclosed for straight bevel gear according to claim 1, it is characterized in that: the die joint between described finish forge patrix (50) and the finish forge counterdie (60) is the plane, and each upper die unit (51) that forms finish forge patrix (50) under the effect of driving mechanism along the die joint translation.
3. the cold temperature finish forge mould of the enclosed for straight bevel gear according to claim 2, it is characterized in that: described driving mechanism comprises that the Hough with upper die unit (51) Joint connects frame (70) and power source, described Hough connects frame (70) and is block, block Hough connects the outside that frame (70) is coated on upper die unit (51), and Hough connect frame (70) along pressing direction and along the size of die joint direction all greater than the size of upper die unit (51); The side that described Hough connects paralleling with die joint of frame (70) and deviates from upper die unit (51) links to each other with the drive end of power source; The upper end that is connected with each other that described each Hough connects frame (70) is provided with the passage that passes through for upper punch (40).
4. the cold temperature finish forge mould of the enclosed for straight bevel gear according to claim 3 is characterized in that: the high-voltage oil cylinder (80) of described power source for linking to each other with oil pump.
5. according to claim 2 or the cold temperature finish forge mould of 3 described encloseds for straight bevel gear, it is characterized in that: the downside of described finish forge counterdie (60) is provided with base (30), and finish forge counterdie (60) is embedded in the described base (30), and the upper surface of finish forge counterdie (60) is mutually concordant with the upper surface of base (30); Each upper die unit (51) of described composition finish forge patrix (50) all is arranged on the upper surface of base (30), and the upper surface of the lower surface of each upper die unit (51) and base (30) formation is slidingly matched.
6. the cold temperature finish forge mould of the enclosed for straight bevel gear according to claim 5, it is characterized in that: it is mutually concordant with the lower surface of upper die unit (51) that Hough connects the lower surface of frame (70), and the Hough upper surface that connects the lower surface of frame (70) and base (30) consists of and is slidingly matched.
7. the cold temperature finish forge mould of the enclosed for straight bevel gear according to claim 5, it is characterized in that: described finish forge patrix (50) is the profile of tooth die, and finish forge counterdie (60) is the back cone die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210517251.8A CN103056264B (en) | 2012-12-06 | 2012-12-06 | Closed cold-temperature precision forging die for straight-tooth bevel gear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210517251.8A CN103056264B (en) | 2012-12-06 | 2012-12-06 | Closed cold-temperature precision forging die for straight-tooth bevel gear |
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| CN103056264A true CN103056264A (en) | 2013-04-24 |
| CN103056264B CN103056264B (en) | 2015-01-21 |
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| CN201210517251.8A Active CN103056264B (en) | 2012-12-06 | 2012-12-06 | Closed cold-temperature precision forging die for straight-tooth bevel gear |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433418A (en) * | 2013-07-03 | 2013-12-11 | 中国农业大学 | Precision forging device and method for spiral bevel gear |
| CN107855455A (en) * | 2017-12-21 | 2018-03-30 | 嘉兴市鹏程磁钢有限公司 | A kind of magnet steel blank forming particular manufacturing craft |
| CN108672644A (en) * | 2018-05-04 | 2018-10-19 | 杭州前进锻造有限公司 | The high forging ratio piston seat proceeding closed fine forging method of construction machinery gear box |
| CN108817226A (en) * | 2018-07-03 | 2018-11-16 | 太仓久信精密模具股份有限公司 | A kind of speed reducer stainless steel material minute gear heating extrusion forming process |
| CN110976730A (en) * | 2019-12-26 | 2020-04-10 | 如皋市林达线路金具有限公司 | One-step forging forming process for inner cavity of ball socket hardware fitting |
| CN112620503A (en) * | 2020-11-02 | 2021-04-09 | 无锡昌至盛机械制造有限公司 | Punch press hydraulic pressure autosegregation harbour workstation |
| CN113547056A (en) * | 2021-07-27 | 2021-10-26 | 上海汽车变速器有限公司 | Forming process of automobile half-shaft bevel gear |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010037669A1 (en) * | 1998-05-06 | 2001-11-08 | Kunihiko Tanaka | Die system for full enclosed die forging |
| CN1644267A (en) * | 2004-12-20 | 2005-07-27 | 华中科技大学 | Special hydraulic mould stand |
| JP2006102819A (en) * | 2005-10-31 | 2006-04-20 | Komatsu Ltd | Die apparatus for full enclosed die forging |
| CN101985153A (en) * | 2010-08-02 | 2011-03-16 | 天津市天锻压力机有限公司 | Two-half combined forging mould clamping mechanism |
| CN201823864U (en) * | 2010-10-15 | 2011-05-11 | 重庆富川机电有限公司 | Forming die for precision-forging stocks of primary driving teeth |
| CN202123183U (en) * | 2011-06-03 | 2012-01-25 | 刘绍东 | Light alloy integral die forging extrusion forming die for automobile hub |
-
2012
- 2012-12-06 CN CN201210517251.8A patent/CN103056264B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010037669A1 (en) * | 1998-05-06 | 2001-11-08 | Kunihiko Tanaka | Die system for full enclosed die forging |
| CN1644267A (en) * | 2004-12-20 | 2005-07-27 | 华中科技大学 | Special hydraulic mould stand |
| JP2006102819A (en) * | 2005-10-31 | 2006-04-20 | Komatsu Ltd | Die apparatus for full enclosed die forging |
| CN101985153A (en) * | 2010-08-02 | 2011-03-16 | 天津市天锻压力机有限公司 | Two-half combined forging mould clamping mechanism |
| CN201823864U (en) * | 2010-10-15 | 2011-05-11 | 重庆富川机电有限公司 | Forming die for precision-forging stocks of primary driving teeth |
| CN202123183U (en) * | 2011-06-03 | 2012-01-25 | 刘绍东 | Light alloy integral die forging extrusion forming die for automobile hub |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433418A (en) * | 2013-07-03 | 2013-12-11 | 中国农业大学 | Precision forging device and method for spiral bevel gear |
| CN107855455A (en) * | 2017-12-21 | 2018-03-30 | 嘉兴市鹏程磁钢有限公司 | A kind of magnet steel blank forming particular manufacturing craft |
| CN107855455B (en) * | 2017-12-21 | 2019-08-16 | 嘉兴市鹏程磁钢有限公司 | A kind of magnet steel blank forming particular manufacturing craft |
| CN108672644A (en) * | 2018-05-04 | 2018-10-19 | 杭州前进锻造有限公司 | The high forging ratio piston seat proceeding closed fine forging method of construction machinery gear box |
| CN108672644B (en) * | 2018-05-04 | 2019-11-19 | 杭州前进锻造有限公司 | The high forging ratio piston seat proceeding closed fine forging method of construction machinery gear box |
| CN108817226A (en) * | 2018-07-03 | 2018-11-16 | 太仓久信精密模具股份有限公司 | A kind of speed reducer stainless steel material minute gear heating extrusion forming process |
| CN110976730A (en) * | 2019-12-26 | 2020-04-10 | 如皋市林达线路金具有限公司 | One-step forging forming process for inner cavity of ball socket hardware fitting |
| CN112620503A (en) * | 2020-11-02 | 2021-04-09 | 无锡昌至盛机械制造有限公司 | Punch press hydraulic pressure autosegregation harbour workstation |
| CN113547056A (en) * | 2021-07-27 | 2021-10-26 | 上海汽车变速器有限公司 | Forming process of automobile half-shaft bevel gear |
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| CN103056264B (en) | 2015-01-21 |
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