CN110238342A - The forging and manufacturing process of gear - Google Patents
The forging and manufacturing process of gear Download PDFInfo
- Publication number
- CN110238342A CN110238342A CN201910647397.6A CN201910647397A CN110238342A CN 110238342 A CN110238342 A CN 110238342A CN 201910647397 A CN201910647397 A CN 201910647397A CN 110238342 A CN110238342 A CN 110238342A
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- forging
- work step
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- gear
- blind hole
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- 238000005242 forging Methods 0.000 title claims abstract description 93
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 28
- 239000000047 product Substances 0.000 claims abstract description 17
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 239000011265 semifinished product Substances 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000000314 lubricant Substances 0.000 claims description 10
- 238000004381 surface treatment Methods 0.000 claims description 10
- 239000004519 grease Substances 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 5
- 238000000137 annealing Methods 0.000 claims 1
- 238000003754 machining Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000005422 blasting Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000011031 large-scale manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052961 molybdenite Inorganic materials 0.000 description 3
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 3
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229920000914 Metallic fiber Polymers 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- 238000010186 staining Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/30—Making machine elements wheels; discs with gear-teeth
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of forging of gear and manufacturing process, the forging is that previously obtained blank is placed in finish forge cavity plate to forge, to obtain the finished product or semi-finished product of gear, the blank are as follows: there are two the column structures of blind hole for center setting, two blind holes are coaxial, the axis of blind hole and the axis collinear of column structure, and the aperture of two blind holes is located at the different ends of column structure, two blind holes are taper circular hole, and each diameter of blind hole maximum position is respectively positioned on the open end of blind hole；First boss is provided in the middle part of the type chamber of the cavity plate；Second boss is provided in the middle part of upper mold lower end for forging.The manufacturing process, which is based on the forging, can effectively break through the requirement of gear precision forging Technology on Gear size using the forging and manufacturing process: gear precision forging technique is applied in the bigger Gear Processing of thickness.
Description
Technical field
The present invention relates to gear machining technology fields, more particularly to the forging and manufacturing process of a kind of gear.
Background technique
Currently, straight spur gear mainly passes through traditional metal cutting process or hot forging base and machining phase
In conjunction with method manufacture, that there is production efficiencys is low for machining manufacturing method, and stock utilization is high, gear teeth metallic fibers
Continuity by destroying the problems such as, problem above cause straight spur gear to have comprehensive performance is poor, gear life is low etc.
Disadvantage.
As described in the technical solution provided application No. is 201811273204.7 patent of invention, in the prior art, occur
Gearmaking Technology based on forging.Industry can be improved it is believed that process gear with the method for precision forging (finish forge)
The utilization rate of material improves production efficiency, improves gear mechanism performance, reduces cost and enhance one's market competitiveness.Especially to
There is bigger benefit and potentiality in the large-scale production of auto industry, analysis of precise gear forging.
It is certain away from applying to although analysis of precise gear forging has many advantages, such as, and has been used for the large-scale production of bevel gear
There are also certain distances for the spur gear wheel of size and helical gear large-scale production.
Summary of the invention
For analysis of precise gear forging set forth above away from the spur gear wheel and helical gear scale for applying to certain size
The technical issues of there are also certain distances is produced, the present invention provides a kind of forging of gear and manufacturing process.The manufacture
Technique, which is based on the forging, can effectively break through gear precision forging Technology on Gear ruler using the forging and manufacturing process
Very little requirement: gear precision forging technique is applied in the bigger Gear Processing of thickness.
In view of the above-mentioned problems, the forging and manufacturing process of gear provided by the invention are solved by following technical essential
Certainly problem: the forging of gear, which is that previously obtained blank is placed in finish forge cavity plate to forge, to obtain
Obtain the finished product or semi-finished product of gear, the blank are as follows: there are two the column structure of blind hole, two blind holes are coaxial, blind for center setting
The axis in hole and the axis collinear of column structure, the aperture of two blind holes are located at the different ends of column structure, and two blind holes are
Taper circular hole, each diameter of blind hole maximum position are respectively positioned on the open end of blind hole；
First boss is provided in the middle part of the type chamber of the cavity plate, the shape of the first boss is outer with one of blind hole
Shape matching；
Second boss, shape and another blind hole of the second boss are provided in the middle part of upper mold lower end for forging
Form fit.
In the prior art, although gear precision forging technique can apply to as straight spur gear process in, due to forging
During making, forging deformation occurs at first for the middle position on blank axis direction under normal circumstances, during forging and stamping, if
Gear thickness to be prepared is blocked up, it is difficult to so that uniform plastic deformation occurs for blank side each position to fill up cavity plate type
Chamber, therefore the existing processing scheme that duct is not arranged on blank in advance, it is small that gear precision forging technique generally can only apply to thickness
In the Gear Processing of 10mm；Duct is set on blank in advance, while being embedded in the processing side of plug in duct in forging
Case, gear precision forging technique generally can only apply in Gear Processing of the thickness less than 20mm.
In the present solution, by employed in forging to upper mold, groove and blank carry out special shape and set
Meter, when carrying out finish forge, first boss is bonded with the blind hole hole wall of blank lower end, the blind hole hole wall of second boss and blank upper end
Fitting, when being forged, constraint by first boss and second boss each point to blind hole hole wall on blank, so that blank exists
Each position on axis direction and each position in circumferential direction all have more uniform stress, by optimizing blank
The ridig flow of metal achievees the purpose that blank side each point deflection in uniform forging or work step, so that gear is smart
Forging process good can apply in Gear Processing of the thickness less than 100mm.This programme is used simultaneously, may make forging
Or the obtained fine forge piece taper of finish forge work step is percent the 40 of the fine forge piece that other existing forgings or finish forge work step obtain
It is even more small, by reducing following process surplus, achievees the effect that improve Gear Processing efficiency, reduces Gear Processing cost.Together
Shi Caiyong this programme, since the manufacture of these gears is no longer limited to traditional machining manufacturing method, therefore this uses this programme
The product quality of thick size gear also can be improved.
Preferably, the taper for being set as the blind hole is respectively less than 2 degree, and the diameter in blind hole aperture is compared with finished gear gear
The small 1-2mm of shaft hole diameter, the part between two hole bottoms are gross weight, gross weight 10% with a thickness of gear thickness within.
This forging can well apply to the gear of the suitable forging manufacture of such as straight spur gear, bevel gear
On.
For auto industry, as serial 0122 planetary gear of steyr bridge, serial 029 planetary gear of AC16 bridge, north are serial to bridge
071 planetary gear, east wind god of unusual strength's series 2405ZHS01-032 planetary gear etc. are processed using this forging and are prepared.For
These gear manufactures, due to avoid use gear cutting machining manufacture bring gear teeth metallic fiber continuity by
The problems such as destruction, not only high production efficiency, stock utilization are high, while may make that the comprehensive performance of these gears is more preferable, gear
Longer life expectancy.
The further technical solution of forging as the gear:
To enable blank to obtain stable side deformation, setting are as follows: in precision forging process, the upper surface of blank with it is upper
The fitting of mould lower end surface, the lower end surface of blank and the type bottom of chamber face paste of cavity plate are closed, and the surface of first boss is bonded with corresponding blind hole, the
The surface of two boss is bonded with corresponding blind hole.
For enable blank more convenient merging cavity plate in, setting are as follows: the blank be outside on be provided with tooth form
Column structure.That is blank is before carrying out finish forge, i.e., by being processed into the column that side has tooth form as utilized press device
Shape structure, the column structure is in finish forge, in the tooth form of the tooth form insertion cavity plate side of side.
As a kind of technical solution of easily prepared blank, setting are as follows: the blank is obtained by press machine base.
The invention also discloses a kind of manufacturing process of gear, including finish forge work step, the finish forge work step is used to take up an official post
Forging provided of anticipating is completed.Gear is manufactured using the manufacturing process, not only more using forging manufacture thickness
Thick gear, while the effect that can reach and improve Gear Processing efficiency, reduce Gear Processing cost.
The further technical solution of manufacturing process as the gear: further including at the surface after finish forge work step
Science and engineering step, the surface treatment work step are as follows: after carrying out surface scale removal to fine forge piece, carry out surface lubricant processing or profit
Consistent lubricant processing.Specifically, the surface of forging inevitably generates oxide skin since precision forging carries out at high temperature,
Shot-blasting machine ball blast or other removal surface scales can be used in favor of subsequent lubricated.After surface impurity is handled again
Using phospholeum or apply high powder lubrication Ji (MoS2) etc. lubricants or lubricating grease be surface-treated, it is therefore an objective to chemically
The cellular phosphate film of plastic deformation can be participated in again by forming one layer of adherency securely in blank surface, and this film is to lubricant
With suction-operated.Saponification process is carried out after phosphatization or applies high powder lubrication Ji (MoS2) etc. lubricants or lubricating grease can make to forge
Part is isolated with mold, is avoided directly contacting when blank deformation with mold, is effectively reduced the frictional resistance of blank and die surface, mention
The surface quality of high-precision one integral piece and die life.
It further include the cold temperature finishing work step after surface treatment work step, the cold temperature finishing work step is using press machine
Fine forge piece is put into finishing mold, carries out finishing with the mode of pushing, to pass through finishing, so that the flank of tooth on fine forge piece
It is plastically deformed, reaches the product design size of product final design size or cold temperature finishing work step.Specifically, liquid can be used
Press or other press machines carry out cold temperature finishing, the forging after surface treated are put into finishing mold, with the mode of pushing
Finishing is carried out, the flank of tooth can occur a small amount of plastic deformation and reach product quality requirement in finishing.
It further include the spheroidizing work step after finish forge work step.Spheroidizing is carried out to forging, main purpose is to disappear
Except forging internal residual stress, hardness is reduced, improves institutional framework, in order to the progress of subsequent cold-finishing work step, is guaranteed hard
Degree≤130HB.
Further include the heating work step before the finish forge work step, the heating work step for the blank for finish forge work step into
Row heating, so that the blank temperature during finish forge work step is maintained within the temperature range of 700-1250 DEG C.Specifically, can be used
The induction heating equipments such as intermediate frequency, high frequency, superaudio or heated by natural gas equipment carry out blank heating, so that forging temperature control exists
700-1250℃。
It further include the blank surface processing work step before heating work step, the blank surface processing work step is removal base
Expect the dirt defect on surface.Specifically, this programme is meant to ensure that the quality of forging, need before heating by greasy dirts all on blank,
The dirts defect expressivity such as silt, rust staining is clean, and other equipment such as shot-blasting machine, lathe, grinding machine can be used and be surface-treated.
The complete process flow of the manufacturing process may be configured as:
(1) forming of the hot finish forge tooth in blanking → (2) blank surface processing → (3) mid-frequency induction heating → (4) base → (5) →
(6) gross weight → (7) spheroidizing → (8) Vehicle Processing → (9) surface treatment → (10) cold temperature finishing → (11) subsequent machining is gone.
As those skilled in the art, the blanking, as raw material, using high speed band saw, circular saw, is cut using cylindrical, massive bar
It cuts equipment and carries out blanking；It is described go gross weight be complete finish forge after, remove two hole bottoms between material, specifically may be used
Are as follows: after hot precision forging, intermediate gross weight is removed using press machine or other lathes, it can also be to be removed after finishing type；The vehicle adds
Work predominantly removes end face burr and guarantees internal hole reference, depending on needing with specific reference to product processing；Subsequent machining is used for
The final molding of product is processed.
The invention has the following advantages:
Using the forging and manufacturing process, by upper mold, groove and the hair arrived employed in forging
Base carries out special shape design, and when carrying out finish forge, first boss is bonded with the blind hole hole wall of blank lower end, second boss and
The blind hole hole wall of blank upper end is bonded, when being forged, by first boss and second boss each point to hole on blank
The constraint of wall, so that each position in blank each position in the axial direction and circumferential direction all has more uniformly
Stress, by optimize blanked metal ridig flow, reach each point deformation in blank side in uniform forging or work step
The purpose of amount enables gear precision forging technique is good to apply in Gear Processing of the thickness less than 100mm.Simultaneously using this
Scheme, the fine forge piece taper that may make forging or finish forge work step to obtain are that other existing forgings or finish forge work step obtain
Fine forge piece it is percent 40 even more small, by reducing following process surplus, reach and improve Gear Processing efficiency, reduce gear
The effect of processing cost.
Detailed description of the invention
Fig. 1 is to be used in the forging of gear of the present invention and one specific embodiment of manufacturing process of gear
The cross-sectional view of the blank of finish forge；
Fig. 2 is to be used in the forging of gear of the present invention and one specific embodiment of manufacturing process of gear
The cross-sectional view of the mold of finish forge.
Figure acceptance of the bid, which is remembered, is respectively as follows: 1, blank, 2, blind hole, 3, gross weight, 4, tooth form, 5, cavity plate, 6, type chamber, 7, first boss,
8, second boss, 9, upper mold.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail, but the present invention is not limited only to following implementation
Example:
Embodiment 1:
As depicted in figs. 1 and 2, the forging of gear, the forging are that previously obtained blank 1 merging finish forge is recessed
It is forged in mould 5, to obtain the finished product or semi-finished product of gear, the blank 1 are as follows: there are two the columns of blind hole 2 for center setting
Structure, two blind holes 2 are coaxial, and the aperture of the axis of blind hole 2 and the axis collinear of column structure, two blind holes 2 is located at column knot
The different ends of structure, two blind holes 2 are taper circular hole, and the diameter maximum position of each blind hole 2 is respectively positioned on the open end of blind hole 2；
First boss 7, the shape and one of blind hole of the first boss 7 are provided in the middle part of the type chamber 6 of the cavity plate 5
2 form fit；
It is provided with second boss 8 in the middle part of 9 lower end of upper mold for forging, the shape of the second boss 8 is blind with another
The form fit in hole 2.
In the prior art, although gear precision forging technique can apply to as straight spur gear process in, due to forging
During making, forging deformation occurs at first for the middle position on 1 axis direction of blank under normal circumstances, during forging and stamping, such as
Fruit gear thickness to be prepared is blocked up, it is difficult to so that uniform plastic deformation occurs for 1 side each position of blank to fill up cavity plate 5
Type chamber 6, therefore the existing processing scheme that duct is not arranged on blank 1 in advance, gear precision forging technique generally can only apply to thickness
In Gear Processing of the degree less than 10mm；Duct is set on blank 1 in advance, while being embedded in adding for plug in duct in forging
Work scheme, gear precision forging technique generally can only apply in Gear Processing of the thickness less than 20mm.
In the present solution, by employed in forging to upper mold 9, groove and blank 1 carry out special shape
Design, when carrying out finish forge, first boss 7 is bonded with 2 hole wall of blind hole of 1 lower end of blank, second boss 8 and 1 upper end of blank
2 hole wall of blind hole fitting, when being forged, by first boss 7 and 8 each point of second boss to the pact of 2 hole wall of blind hole on blank 1
Beam so that each position in each position in the axial direction of blank 1 and circumferential direction all have more uniformly by
Power reaches blank in uniform forging or work step by optimizing the ridig flow (radial rigidity mobility) of 1 metal of blank
The purpose of 1 side each point deflection, enable gear precision forging technique it is good apply to thickness be less than 100mm Gear Processing
In.This programme is used simultaneously, and the fine forge piece taper that may make forging or finish forge work step to obtain is other existing forgings
Or percent the 40 of the obtained fine forge piece of finish forge work step are even more small, by reducing following process surplus, reach and improve gear and add
Work efficiency rate, the effect for reducing Gear Processing cost.
Preferably, the taper for being set as the blind hole 2 is respectively less than 2 degree, and the diameter in 2 aperture of blind hole is compared with finished gear gear
The small 1-2mm of shaft hole diameter, the part between two blind holes, 2 bottom hole are gross weight 3, gross weight 3 10% with a thickness of gear thickness within.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, is become to enable blank 1 to obtain stable side
Shape, setting are as follows: in precision forging process, the upper surface of blank 1 is bonded with 9 lower end surface of upper mold, lower end surface and the cavity plate 5 of blank 1
The fitting of 6 bottom surface of type chamber, the surface of first boss 7 are bonded with corresponding blind hole 2, and the surface of second boss 8 is bonded with corresponding blind hole 2.
For enable blank 1 more convenient merging cavity plate 5 in, setting are as follows: the blank 1 be outside on be arranged it is with teeth
The column structure of shape 4.That is blank 1 is before carrying out finish forge, i.e., by being processed into side with tooth form as utilized press device
4 column structure, in finish forge, the tooth form 4 of side is embedded in the tooth form 4 of 5 side of cavity plate the column structure.
As a kind of technical solution of easily prepared blank 1, setting are as follows: the blank 1 is obtained by press machine base.
Embodiment 3:
The present embodiment is further qualified on the basis of any one technical solution that embodiment 1 or embodiment 2 provide,
Present embodiment discloses a kind of manufacturing process of gear, including finish forge work step, the finish forge work step is mentioned using any of the above one
The forging of confession is completed.Gear is manufactured using the manufacturing process, not only the gear thicker using forging manufacture thickness,
The effect that can reach simultaneously and improve Gear Processing efficiency, reduce Gear Processing cost.
Embodiment 4:
The present embodiment is further qualified on the basis of embodiment 3, and the manufacturing process as the gear is further
Technical solution: further including the surface treatment work step after finish forge work step, the surface treatment work step are as follows: carry out to fine forge piece
After surface scale removal, surface lubricant processing or lubricating grease processing are carried out.Specifically, since precision forging is at high temperature
Carry out, the surface of forging inevitably generates oxide skin, can be used shot-blasting machine ball blast or other removal surface scales with
Conducive to subsequent lubricated.Again using phospholeum or the high powder lubrication Ji (MoS of painting after surface impurity is handled2) etc. lubrication
Agent or lubricating grease are surface-treated, it is therefore an objective to which plasticity can securely be participated in again by chemically forming one layer of adherency in blank surface
The cellular phosphate film of deformation, this film have suction-operated to lubricant.Saponification process or painting are carried out after phosphatization
Gao Fenzi lubrication Ji (MoS2) etc. lubricants or lubricating grease forging can be made to be isolated with mold, it is direct with mold when avoiding blank deformation
Contact effectively reduces the frictional resistance of blank and die surface, improves surface quality and the die life of finishing part.
It further include the cold temperature finishing work step after surface treatment work step, the cold temperature finishing work step is using press machine
Fine forge piece is put into finishing mold, carries out finishing with the mode of pushing, to pass through finishing, so that the flank of tooth on fine forge piece
It is plastically deformed, reaches the product design size of product final design size or cold temperature finishing work step.Specifically, liquid can be used
Press or other press machines carry out cold temperature finishing, the forging after surface treated are put into finishing mold, with the mode of pushing
Finishing is carried out, the flank of tooth can occur a small amount of plastic deformation and reach product quality requirement in finishing.
It further include the spheroidizing work step after finish forge work step.Spheroidizing is carried out to forging, main purpose is to disappear
Except forging internal residual stress, hardness is reduced, improves institutional framework, in order to the progress of subsequent cold-finishing work step, is guaranteed hard
Degree≤130HB.
Further include the heating work step before the finish forge work step, the heating work step for the blank for finish forge work step into
Row heating, so that the blank temperature during finish forge work step is maintained within the temperature range of 700-1250 DEG C.Specifically, can be used
The induction heating equipments such as intermediate frequency, high frequency, superaudio or heated by natural gas equipment carry out blank heating, so that forging temperature control exists
700-1250℃。
It further include the blank surface processing work step before heating work step, the blank surface processing work step is removal base
Expect the dirt defect on surface.Specifically, this programme is meant to ensure that the quality of forging, need before heating by greasy dirts all on blank,
The dirts defect expressivity such as silt, rust staining is clean, and other equipment such as shot-blasting machine, lathe, grinding machine can be used and be surface-treated.
The complete process flow of the manufacturing process may be configured as:
(1) forming of the hot finish forge tooth in blanking → (2) blank surface processing → (3) mid-frequency induction heating → (4) base → (5) →
(6) gross weight 3 → (7) spheroidizing → (8) Vehicle Processing → (9) surface treatment → (10) cold temperature finishing → (11) subsequent machine is gone to add
Work.As those skilled in the art, the blanking using cylindrical, massive bar as raw material, using high speed band saw, circular saw,
Shearing equipment carries out blanking；It is described go gross weight 3 be complete finish forge after, remove two blind holes, 2 bottom hole between material, specifically
It can are as follows: after hot precision forging, intermediate gross weight 3 is removed using press machine or other lathes, it can also be to be removed after finishing type；The vehicle
Processing predominantly removes end face burr and guarantees internal hole reference, depending on needing with specific reference to product processing；Subsequent machining is used
It is processed in the final molding of product.
The above content is combine specific preferred embodiment to the further description of the invention made, and it cannot be said that originally
The specific embodiment of invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs,
The other embodiments obtained in the case where not departing from technical solution of the present invention, should be included within the scope of the present invention.
Claims (10)
1. the forging of gear, which is that previously obtained blank is placed in finish forge cavity plate to forge, to obtain
Obtain the finished product or semi-finished product of gear, which is characterized in that the blank are as follows: the column structure for blind hole that there are two center settings, two
Blind hole is coaxial, the axis of blind hole and the axis collinear of column structure, and the aperture of two blind holes is located at the different ends of column structure, and two
A blind hole is taper circular hole, and each diameter of blind hole maximum position is respectively positioned on the open end of blind hole；
First boss, the shape of the shape of the first boss and one of blind hole are provided in the middle part of the type chamber of the cavity plate
Match；
Second boss, the shape of the second boss and the shape of another blind hole are provided in the middle part of upper mold lower end for forging
Matching.
2. the forging of gear according to claim 1, which is characterized in that in precision forging process, the upper surface of blank
It is bonded with upper mold lower end surface, the lower end surface of blank and the type bottom of chamber face paste of cavity plate are closed, and the surface of first boss is pasted with corresponding blind hole
It closes, the surface of second boss is bonded with corresponding blind hole.
3. the forging of gear according to claim 1, which is characterized in that the blank is to be provided with tooth form on outside
Column structure.
4. the forging of gear according to claim 3, which is characterized in that the blank is obtained by press machine base.
5. the manufacturing process of gear, including finish forge work step, which is characterized in that the finish forge work step is appointed using in Claims 1-4
Forging provided of anticipating is completed.
6. the manufacturing process of gear according to claim 5, which is characterized in that further include the table after finish forge work step
Surface treatment work step, the surface treatment work step are as follows: after carrying out surface scale removal to fine forge piece, carry out surface lubricant processing
Or lubricating grease processing.
7. the manufacturing process of gear according to claim 6, which is characterized in that further include being located at after surface treatment work step
Cold temperature finishing work step, the cold temperature finishing work step be fine forge piece is put into finishing mold using press machine, with the side of pushing
Formula carries out finishing, to reach product final design size so that the flank of tooth on fine forge piece is plastically deformed by finishing
Or the product design size of cold temperature finishing work step.
8. the manufacturing process of gear according to claim 5, which is characterized in that further include the ball after finish forge work step
Annealing work step.
9. the manufacturing process of gear according to claim 5, which is characterized in that further include adding before finish forge work step
Thermal technology's step, the heating work step is to heat to the blank for finish forge work step, so that the blank temperature during finish forge work step
Degree is maintained within the temperature range of 700-1250 DEG C.
10. the manufacturing process of gear according to claim 9, which is characterized in that further include before being located at heating work step
Blank surface handles work step, and the blank surface processing work step is the dirt defect for removing blank surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910647397.6A CN110238342A (en) | 2019-07-17 | 2019-07-17 | The forging and manufacturing process of gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910647397.6A CN110238342A (en) | 2019-07-17 | 2019-07-17 | The forging and manufacturing process of gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110238342A true CN110238342A (en) | 2019-09-17 |
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| CN201910647397.6A Pending CN110238342A (en) | 2019-07-17 | 2019-07-17 | The forging and manufacturing process of gear |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475819A (en) * | 2020-12-14 | 2021-03-12 | 雄名航空科工（芜湖）股份有限公司 | Bogie end tooth and machining process thereof |
| CN112916790A (en) * | 2021-02-04 | 2021-06-08 | 伊莱特能源装备股份有限公司 | Raw material for planet wheel forging and planet wheel machining method |
| CN113414329A (en) * | 2021-05-26 | 2021-09-21 | 昆山三民涂赖电子材料技术有限公司 | Surface treatment process for demoulding of forging blank |
| CN114406076A (en) * | 2021-12-10 | 2022-04-29 | 钢铁研究总院 | Double blind hole fan shaft combined machining die and rotary near-net forming process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61235033A (en) * | 1985-04-10 | 1986-10-20 | Goto Tanko Kk | Production of gear wheel |
| US5746085A (en) * | 1995-06-30 | 1998-05-05 | Hitachi, Ltd. | Gear forming method |
| JP2009178724A (en) * | 2008-01-29 | 2009-08-13 | Musashi Seimitsu Ind Co Ltd | Method for forging cylindrical member |
| CN101695806A (en) * | 2009-09-18 | 2010-04-21 | 江苏太平洋精密锻造有限公司 | Process for manufacturing backward gear of automobile gearbox |
| CN205200433U (en) * | 2015-11-09 | 2016-05-04 | 邓州市良机锻压设备制造有限公司 | Modulus is not less than 6 straight -teeth gear finish forge hot extrusion formation mould |
| CN105921672A (en) * | 2016-05-17 | 2016-09-07 | 山东大学 | Isothermal forging method of straight bevel gear |
-
2019
- 2019-07-17 CN CN201910647397.6A patent/CN110238342A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61235033A (en) * | 1985-04-10 | 1986-10-20 | Goto Tanko Kk | Production of gear wheel |
| US5746085A (en) * | 1995-06-30 | 1998-05-05 | Hitachi, Ltd. | Gear forming method |
| JP2009178724A (en) * | 2008-01-29 | 2009-08-13 | Musashi Seimitsu Ind Co Ltd | Method for forging cylindrical member |
| CN101695806A (en) * | 2009-09-18 | 2010-04-21 | 江苏太平洋精密锻造有限公司 | Process for manufacturing backward gear of automobile gearbox |
| CN205200433U (en) * | 2015-11-09 | 2016-05-04 | 邓州市良机锻压设备制造有限公司 | Modulus is not less than 6 straight -teeth gear finish forge hot extrusion formation mould |
| CN105921672A (en) * | 2016-05-17 | 2016-09-07 | 山东大学 | Isothermal forging method of straight bevel gear |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475819A (en) * | 2020-12-14 | 2021-03-12 | 雄名航空科工（芜湖）股份有限公司 | Bogie end tooth and machining process thereof |
| CN112475819B (en) * | 2020-12-14 | 2021-09-14 | 雄名航空科工（芜湖）股份有限公司 | Bogie end tooth |
| CN112916790A (en) * | 2021-02-04 | 2021-06-08 | 伊莱特能源装备股份有限公司 | Raw material for planet wheel forging and planet wheel machining method |
| CN112916790B (en) * | 2021-02-04 | 2024-04-05 | 伊莱特能源装备股份有限公司 | Raw material for planetary gear forging and planetary gear processing method |
| CN113414329A (en) * | 2021-05-26 | 2021-09-21 | 昆山三民涂赖电子材料技术有限公司 | Surface treatment process for demoulding of forging blank |
| CN114406076A (en) * | 2021-12-10 | 2022-04-29 | 钢铁研究总院 | Double blind hole fan shaft combined machining die and rotary near-net forming process |
| CN114406076B (en) * | 2021-12-10 | 2023-02-21 | 钢铁研究总院有限公司 | Double blind hole fan shaft combined machining die and rotary near-net forming process |
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