CN106838281A - A kind of pinion frame and its forming technology - Google Patents

A kind of pinion frame and its forming technology Download PDF

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Publication number
CN106838281A
CN106838281A CN201611173914.3A CN201611173914A CN106838281A CN 106838281 A CN106838281 A CN 106838281A CN 201611173914 A CN201611173914 A CN 201611173914A CN 106838281 A CN106838281 A CN 106838281A
Authority
CN
China
Prior art keywords
centre bore
subsidence
cambered
forming technology
machined
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.)
Pending
Application number
CN201611173914.3A
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Chinese (zh)
Inventor
应浩
许建国
丁明明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG 3D COLD EXTRUSION CO Ltd
Original Assignee
ZHEJIANG 3D COLD EXTRUSION CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHEJIANG 3D COLD EXTRUSION CO Ltd filed Critical ZHEJIANG 3D COLD EXTRUSION CO Ltd
Priority to CN201611173914.3A priority Critical patent/CN106838281A/en
Publication of CN106838281A publication Critical patent/CN106838281A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/14Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/08General details of gearing of gearings with members having orbital motion
    • F16H57/082Planet carriers

Abstract

The invention discloses a kind of pinion frame and its forming technology, including body, upper surface, arc-like sheet, centre bore, lower surface, surface of subsidence, described body central is provided with centre bore, both ends of the surface on body are respectively upper surface and lower surface, upper surface upper edge annular array has four cambered surface pieces respectively, annular array is gone back on upper surface and is machined with four axis holes, surface of subsidence is machined with outside centre bore on lower surface, the body edge between cambered surface piece is groove edge two-by-two, groove edge is machined with anti-interference angle, its specific forming technology, comprises the following steps:A, blanking;B, annealing;C, punching;D, Che Kong;E, ball blast, phospholeum;F, backward extrusion;G, metalworking.Advantage:Solve casting, surface that the bad mechanical property that welding procedure is present, hot forging process are present is oxidizable, the problems such as cutting output is big, anti-fatigue performance improves 1.5 2 times, and stock utilization improves 50%.

Description

A kind of pinion frame and its forming technology
Technical field
The present invention relates to the technical field of automotive transmission parts, particularly a kind of pinion frame and its shaping work Skill.
Background technology
Planetary transmission, belongs to a kind of gear-box, and it is (also known as satellite by planetary ring gear, sun gear, planetary gear Wheel) and gear hub composition, according to the movement relation of gear ring, sun gear and planetary gear, it is possible to achieve input shaft takes off with output shaft From positive drive relation, input shaft and output shaft in the same direction or reverse drive and input with output shaft gearratio change, and land use, It is used widely in the transport facilitys such as navigation, aviation.
At present, the pinion frame structure in speed changer is relatively simple, and cylindrical projection structure is added by this body side surface Into, overall structure is single, in installation and running can because installation effect not good, this weight reason causes operation again etc. Effect is poor, operation power consumption is high, while this planetary gear is also higher with interference fit requirement for installing.
Conventional planetary gear frame processing method using casting, welding with the method that is combined of machining, but exist cast or The problems such as weld defect and internal stress, finished product machinery poor-performing.And the new technology being combined using hot forging and metalworking, planet Tooth rest mechanical performance improves, but there is surface and easily form oxide skin, the defect such as machining cutting output is larger, energy consumption is big.Cause This, there is bad mechanical property in the pinion frame processing method that presently, there are, stock utilization is relatively low, and energy consumption grade high lacks Point, does not meet the development trend of energy-conserving and environment-protective, green manufacturing.
The content of the invention
To solve the above problems, added with numerical control using cold temperature combination precise forming process it is an object of the invention to provide one kind The forming technology that work is combined, solves casting, the bad mechanical property that welding procedure is present, the easy oxygen in surface of hot forging process presence Change, the problems such as cutting output is big, anti-fatigue performance improves 1.5-2 times, stock utilization raising 50%, and the small effect of installing space is good Pinion frame and its forming technology.
To achieve the above object, technical scheme:
A kind of pinion frame and its forming technology, including body, upper surface, arc-like sheet, centre bore, lower surface, sinking Face, described body central is provided with centre bore, and the both ends of the surface on body are respectively upper surface and lower surface, upper surface upper edge ring Shape array has four cambered surface pieces respectively, annular array is gone back on upper surface and is machined with four axis holes, and the centre bore on lower surface is additional Work has surface of subsidence, and the body edge between cambered surface piece is groove edge two-by-two, and along anti-interference angle is machined with, it specifically shapes work to groove Skill, comprises the following steps:
A, blanking:Cylindricality charge bar is segmented and is split;
B, annealing:600 DEG C of temperature, 2 hours heating-up times, soaking time wants 2 hours, is not more than 75 during cooling per hour Degree, removes the internal stress of bar;
C, punching:Centre bore is gone out with mould;
D, Che Kong:Finishing centre bore to size is required;
E, ball blast, phospholeum:Oil removing rust -- water cleaning -- pickling -- water cleaning -- phosphatization -- water cleaning -- drying -- soap Change -- air-dry, produce phosphate layer, reduce the coefficient of friction in extrusion process;
F, backward extrusion:4 cambered surface pieces and surface of subsidence on forming body;
G, metalworking:4 cambered surface piece outer faces of turning and upper surface, boring surface of subsidence lower surface rush 4 axis holes, chamfering, go Flash removed.
Preferably, the material of described body is SAE1020.
Preferably, chamfered is done by the corner of described body, cambered surface piece, centre bore and surface of subsidence.
Preferably, described body is molded for integral type, without follow-up welding sequence.
Advantage:Solve casting, welding procedure exist bad mechanical property, hot forging process exist surface it is oxidizable, cut The problems such as amount of cutting is big, anti-fatigue performance improves 1.5-2 times, and stock utilization improves 50%.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is sectional view of the invention.
Fig. 3 is the top view and sectional view of body after the completion of step c of the present invention.
Fig. 4 is the top view and sectional view of body after the completion of step d of the present invention.
Fig. 5 is the top view and sectional view of body after the completion of step f of the present invention.
Fig. 6 is the top view and sectional view of body after the completion of step g of the present invention.
Specific embodiment
As shown in Fig. 1,2,3,4,5,6, a kind of pinion frame and its forming technology, including body invent 1 invention, upper table Face is invented 2 inventions, arc-like sheet and invents 3 inventions, 4 inventions of centre bore invention, 6 inventions of lower surface invention, surface of subsidence 7 inventions of invention, Described body invents 1 DevCenter and is provided with centre bore 4 inventions of invention, and the both ends of the surface that body is invented in 1 invention are respectively upper table Face is invented 2 inventions and invents 6 inventions with lower surface, and 2 invention upper edge annular arrays are invented in upper surface has four cambered surface pieces to send out respectively Bright 3 invention, goes back annular array and is machined with four axis holes 5 inventions of invention in 2 inventions of invention of upper surface, lower surface is invented in 6 inventions Centre bore invent the outer surface of subsidence that is machined with of 4 inventions and invent 7 inventions, the body that cambered surface piece is invented between 3 inventions two-by-two invents 1 hair Bright edge is groove edge, and groove invents 8 inventions along anti-interference angle is machined with, and its specific forming technology is comprised the following steps:A, under Material:Cylindricality charge bar is segmented and is split;B, annealing:600 DEG C of temperature, 2 hours heating-up times, soaking time wants 2 hours, every during cooling Hour is not more than 75 degree, removes the internal stress of bar;C, punching:Centre bore is gone out with mould;D, Che Kong:Finishing centre bore is extremely Size requirement;E, ball blast, phospholeum:Oil removing rust -- water cleaning -- pickling -- water cleaning -- phosphatization -- water cleaning -- drying -- soap Change -- air-dry, produce phosphate layer, reduce the coefficient of friction in extrusion process;F, backward extrusion:Forming body is invented in 1 invention 4 cambered surface pieces and surface of subsidence;G, metalworking:Turning 4 inventions of cambered surface piece 3 invention outer faces and upper surfaces, boring surface of subsidence invention 7 Invention lower surface, 4 axis holes of punching invent 5 inventions, chamfering, remove flash removed.The material that described body invents 1 invention is SAE1020.Described body invents 1 invention, cambered surface piece and invents 3 inventions, centre bore 4 inventions of invention and surface of subsidence 7 inventions of invention Corner do chamfered.Described body invents 1 invention for integral type is molded, without follow-up welding sequence.
Body of the invention 1 reduces the mass of body 1 by being machined with surface of subsidence 7, while material-saving and is installed with convenient, So that operation energy consumption is low, more smooth, the forming technology being combined with digital control processing using cold temperature combination precise forming process, solution Surface that bad mechanical property that casting, the welding procedure of having determined are present, hot forging process are present is oxidizable, the problems such as cutting output is big, resist Fatigue behaviour improves 1.5-2 times, and stock utilization improves 50%, and the small effect of installing space is good, by the treatment of step e, produces Raw phosphate layer, reduces the coefficient of friction in extrusion process so that the shapeliness final product quality of body 1 for making shaping is high.
It should be understood by those skilled in the art that, the present invention is not limited to the above embodiments, above-described embodiment and explanation Merely illustrating the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also has Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention By appending claims and its equivalent thereof.

Claims (4)

1. a kind of pinion frame and its forming technology, including body (1), upper surface (2), arc-like sheet (3), centre bore (4), under Surface (6), surface of subsidence (7), it is characterised in that described body (1) center is provided with centre bore (4), the both ends of the surface on body (1) Respectively upper surface (2) and lower surface (6), upper surface (2) upper edge annular array have four cambered surface pieces (3), upper surface respectively (2) annular array is gone back on and is machined with four axis holes (5), be machined with surface of subsidence (7) outside the centre bore (4) on lower surface (6), two-by-two Body (1) edge between cambered surface piece (3) is groove edge, and along anti-interference angle (8) is machined with, its specific forming technology is wrapped groove Include following steps:
A, blanking:Cylindricality charge bar is segmented and is split;
B, annealing:600 DEG C of temperature, 2 hours heating-up times, soaking time wants 2 hours, is not more than 75 degree during cooling per hour, goes Except the internal stress of bar;
C, punching:Centre bore is gone out with mould;
D, Che Kong:Finishing centre bore to size is required;
E, ball blast, phospholeum:Oil removing is become rusty, and -- -- -- -- -- water cleaning -- dries -- saponification -- wind to phosphatization for water cleaning for pickling for water cleaning It is dry, phosphate layer is produced, reduce the coefficient of friction in extrusion process;
F, backward extrusion:4 cambered surface pieces and surface of subsidence on forming body (1);
G, metalworking:4 cambered surface piece (3) outer faces of turning and upper surface, boring surface of subsidence (7) lower surface rushes 4 axis holes (5), Angle, remove flash removed.
2. a kind of pinion frame according to claim 1 and its forming technology, it is characterised in that described body (1) Material be SAE1020.
3. a kind of pinion frame according to claim 1 and its forming technology, it is characterised in that described body (1), Cambered surface piece (3), centre bore (4) do chamfered with the corner of surface of subsidence (7).
4. a kind of pinion frame according to claim 1 and its forming technology, it is characterised in that described body (1) For integral type is molded, without follow-up welding sequence.
CN201611173914.3A 2016-12-14 2016-12-14 A kind of pinion frame and its forming technology Pending CN106838281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611173914.3A CN106838281A (en) 2016-12-14 2016-12-14 A kind of pinion frame and its forming technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611173914.3A CN106838281A (en) 2016-12-14 2016-12-14 A kind of pinion frame and its forming technology

Publications (1)

Publication Number Publication Date
CN106838281A true CN106838281A (en) 2017-06-13

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Application Number Title Priority Date Filing Date
CN201611173914.3A Pending CN106838281A (en) 2016-12-14 2016-12-14 A kind of pinion frame and its forming technology

Country Status (1)

Country Link
CN (1) CN106838281A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110864103A (en) * 2019-11-15 2020-03-06 玉环力恒动力机械有限公司 Electric tool gear box transmission shaft and manufacturing process thereof
CN111093862A (en) * 2017-09-20 2020-05-01 住友电工烧结合金株式会社 Machining method, method for manufacturing planetary gear carrier, and planetary gear carrier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111093862A (en) * 2017-09-20 2020-05-01 住友电工烧结合金株式会社 Machining method, method for manufacturing planetary gear carrier, and planetary gear carrier
CN110864103A (en) * 2019-11-15 2020-03-06 玉环力恒动力机械有限公司 Electric tool gear box transmission shaft and manufacturing process thereof

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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170613

WD01 Invention patent application deemed withdrawn after publication