CN106015543A - Welding spattering-preventing method for split planet carrier - Google Patents
Welding spattering-preventing method for split planet carrier Download PDFInfo
- Publication number
- CN106015543A CN106015543A CN201610566519.5A CN201610566519A CN106015543A CN 106015543 A CN106015543 A CN 106015543A CN 201610566519 A CN201610566519 A CN 201610566519A CN 106015543 A CN106015543 A CN 106015543A
- Authority
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- China
- Prior art keywords
- planet carrier
- side panel
- circular side
- axle
- welding
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
Abstract
The invention discloses a welding spattering-preventing method for a split planet carrier. The welding spattering-preventing method aims to solve the problems that existing planet carriers are high in machining cost and low in machining efficiency, machining by automatic production lines cannot be realized and spattering generated in the laser welding process of the split planet carrier influences the cleanliness and the assembly accuracy of parts. According to the method, German imported equipment and a turning-milling combined double-main shaft and double-turret structure are adopted, and machining can be completely completed through clamping at a time; the advanced laser welding mode is adopted after the parts are assembled according to the split machining method. According to the method, a spattering-preventing structure and a secondary spattering-preventing structure are designed, the problem that the cleanliness and the assembly accuracy of assembly surfaces are influenced after laser through welding is solved, the efficiency is improved, 13 parts are reduced for assembly components, the material is saved by 35%, the assembly cost is reduced, and machining by the automatic production lines is realized. The welding spattering-preventing method is applied to the field of material machining.
Description
Technical field
The present invention relates to split planet carrier welding splash-proof method.
Background technology
Planetary gear slows down and has compact conformation, lightweight, and bearing capacity is big, and transmission efficiency is high, is widely used in various deceleration
In mechanism, reducing gear is had requirement lightweight by automatic gearbox of vehicles, and transmission efficiency is high, the particular/special requirement of compact conformation,
It it is the critical component of automatic gearbox of vehicles.At present, automatic gearbox of vehicles uses planet gear reducing mechanism in a large number, reaches one
To four groups
In case, automatic gear-box early development and small lot batch manufacture have cost to current domestic main employing overall structure
Advantage.But, when yield is substantially improved, our cost advantage has not just existed.And this technology is the most all by other factory of state
Business monopolizes.
Existing overall structure, planetary gear installation position difficulty of processing is very big, and working (machining) efficiency is low, cost with height, automatic metaplasia
Produce line and realize difficulty greatly, high material consumption (physical treatment).
Split planet carrier Fine Boring welding splash-proof technology is that each automobile component part supply business researches and develops the difficulty that field is urgently to be resolved hurrily
Topic.
Existing solution planet carrier Split type structure method mainly has three: (1) restructures and designs or use substitution material.Use
Steel alloy hot investment casting, but the material mechanical performance after casting is bad, it is impossible to it is applied to gearbox transmission (2) split forging
Making, in processing, carburizing, then processing, welding, then in Precision Machining, assembling, but number of parts is the most,
Process route is long, and manufacturing cost is high, and efficiency is low, and quality control difficulty is big；(3) high-carbon steel precision forging, pre-after high frequency
Thermal weld, but can not realize assembling high-accuracy welding；Owing to three of the above method shortcoming is more, therefore it is badly in need of a kind of new side
Method solves problem above.
Summary of the invention
The present invention be in order to solve that existing planet carrier processing cost is high, efficiency is low, automatic production line processing can not be realized and
During split planet carrier laser welding, generation is splashed affects the problem of parts cleannes and assembly precision, and a kind of split proposed
Planet carrier welding splash-proof method.
A kind of split planet carrier includes the T-shaped axle of planet carrier and planet carrier p-type support；
The T-shaped axle of planet carrier is made up of circular side panel and axle sleeve two parts, described circular side panel with central gear hole, four
Planetary gear hole and four depressed parts, central gear hole is positioned at the center of circular side panel, and the surrounding in central gear hole is uniformly distributed
Four planetary gear holes, the edge of circular side panel is uniformly arranged four depressed parts, and planetary gear hole and depressed part interlock successively
Arranging, central gear hole is arranged with axle sleeve concentric；
Planet carrier p-type support is with driving tooth wheel bore, four planetary gear holes and four protruding disc structures, circle
With saw tooth around disk body, driving tooth wheel bore is positioned at the center of disc, and the surrounding of driving tooth wheel bore is uniformly distributed four row
Star gear hole, the edge of planet carrier p-type support is uniformly arranged four projections, four planetary gear holes and four projections and depends on
Secondary be crisscross arranged, each projection be shaped as partial circle shape, with chamfering in each projection, planet carrier p-type support
Four depressed parts of four projection axle T-shaped with carrier circular side panel link together；Four planets of planet carrier p-type support
Gear hole and four planetary gear hole one_to_one corresponding of carrier T-shaped axle circular side panel.
A kind of split planet carrier welding splash-proof method realizes according to the following steps:
Step one: the circular side panel of the manipulator clamping planet carrier T-shaped axis blank part of Digit Control Machine Tool, processing planet carrier is T-shaped
The axle sleeve of axis blank part；
Step 2: axle sleeve process finishing, process circular side panel；
Step 3: use wire rod quality to process depressed part in planet carrier T-shaped axle circular side panel；
Step 4: in the solder side Vehicle Processing chamfering of planet carrier p-type support；
Step 5: driving gear is welded on the planet carrier p-type support after step 4 processing；
Step 6: central gear is arranged on the T-shaped axle of planet carrier；
Step 7: use laser welding that the projection of the depressed part of T-shaped for planet carrier axle Yu planet carrier p-type support is welded on one
Rise；The depressed part of the T-shaped axle of planet carrier and the projection of planet carrier p-type support collectively form anti-splashing structure；
Step 8: install planetary gear after step 7 welding.
Invention effect:
The present invention uses precision forging, and then processing, carburizing, reassemble welding；Parts processing can solve planetary gear and install
The problem that position difficulty of processing is big, improves production efficiency more than one times, and assembly parts reduce by 13 parts, saves material
35% (can be swaged into finished form in advance), decreases assembly cost, it is possible to achieve automatic production line is processed；Originally produce 10 per year
Ten thousand planet carrier assemblies need 7 process equipments, a driving gear welding equipment, general assembly line (planetary gear,
Driving gear, sun wheel shaft), now only need 4 process equipments, an erection welding equipment, a planetary gear assembling
Line can complete to produce more than 200,000 per year, has a good application prospect.The welding of split planet carrier uses advanced Laser Welding
Connect method, especially weld after parts assemble, owing to the part of fitting surface and prepackage can be affected after laser through welding, this
Invention devises anti-splashing structure, and this structure operation is simple, low cost, can effective anti-splashing.
Along with the development of Numeric Control Technology, Digit Control Machine Tool function is increasingly advanced, and its working ability is more and more intrepid, numerical control is swashed
Photocoagulation lathe be fitted to each other, develop high-efficiency laser welding assembly method, thus solve complicated planet carrier assembly
Processing problems, can efficiently solve that manual labor amount is big, efficiency is low and the problem such as structure/performance repeatability difference.
Accompanying drawing explanation
Fig. 1 is planet carrier structure figure；
Fig. 2 is planet carrier A-A sectional view；
Fig. 3 is the T-shaped axis side view of planet carrier；
Fig. 4 is circular side panel schematic diagram；In figure, a is circle a；
Fig. 5 is planet carrier top view；
Fig. 6 is planet carrier p-type bracket side view；
Fig. 7 is planet carrier pictorial diagram；
Fig. 8 is planet carrier T-shaped axle pictorial diagram；
Fig. 9 is planet carrier T-shaped axle material object side view；
Figure 10 is wire rod quality schematic diagram；
Figure 11 is planet carrier T-shaped axle circular side panel pictorial diagram；In figure, B is welding angle, and C is incident laser；
Figure 12 is planet carrier p-type support schematic diagram；In figure, E is chamfering tangent plane, and in figure, F is solder side；
Figure 13 is planet carrier material object profile；In figure, G is optical-fiber laser emitter, and e is laser, and b is reflection laser, f
For weld seam, H is for needing processing plane to be protected.
Detailed description of the invention
Detailed description of the invention one: as depicted in figs. 1 and 2, a kind of split planet carrier includes the T-shaped axle of planet carrier 1 and planet
Frame p-type support 2；
The T-shaped axle of planet carrier (as shown in Figure 3) 1 is made up of circular side panel 1-1 and axle sleeve 1-2 two parts, described circular side
Plate (as shown in Fig. 4 and Figure 11) 1-1 with central gear hole 1-3, four planetary gear hole 1-4 and four depressed part 1-5,
Central gear hole 1-3 is positioned at the center of circular side panel 1-1, and the 1-3 surrounding in central gear hole is uniformly distributed four planetary gears
Hole 1-4, the edge of circular side panel 1-1 is uniformly arranged four depressed part 1-5, planetary gear hole 1-4 and depressed part 1-5 and depends on
Secondary being crisscross arranged, central gear hole 1-3 is arranged with axle sleeve 1-2 concentric；
As it is shown in figure 5, planet carrier p-type support 2 is with driving tooth wheel bore 2-1, four planetary gear hole 1-4 and four
The disc structure of protruding 2-2, with saw tooth around disc, driving tooth wheel bore 2-1 is positioned at the center of disc, main
The 2-1 surrounding in moving gear hole is uniformly distributed four planetary gear hole 1-4, and the edge of planet carrier p-type support 2 is uniformly arranged
Four protruding 2-2, four planetary gear hole 1-4 and four protruding 2-2 are crisscross arranged successively, the shape of each protruding 2-2
For partial circle shape, with chamfering on each protruding 2-2, four protruding 2-2 of planet carrier p-type support 2 are T-shaped with carrier
Four depressed part 1-5 of axle 1 circular side panel link together；Four planetary gear hole 1-4 of planet carrier p-type support 2 with
Four planetary gear hole 1-4 one_to_one corresponding of carrier T-shaped axle 1 circular side panel 1-1.
Detailed description of the invention two: present embodiment is unlike detailed description of the invention one: described split planet carrier also includes too
Sun gear 3；Central gear 3 is made up of central gear main body and central gear shaft, the T-shaped axle of central gear shaft inserting line carrier
In the axle sleeve 1-2 of 1.
Other step and parameter are identical with detailed description of the invention one.
Detailed description of the invention three: present embodiment is unlike detailed description of the invention one or two: described split planet carrier also wraps
Including driving gear 4, driving gear 4 is connected to the driving gear hole site of planet carrier p-type support 2.
Other step and parameter are identical with detailed description of the invention one or two.
Detailed description of the invention four: a kind of split planet carrier welding splash-proof method comprises the following steps:
Step one: circular side panel 1-1 of manipulator clamping planet carrier T-shaped axle 1 blank of Digit Control Machine Tool, processes planet carrier
Axle sleeve 1-2 outline, boring endoporus, gear hobbing and the boring of T-shaped axle 1 blank；
Step 2: axle sleeve 1-2 process finishing, secondary main shaft synchronizes clamping B end, processing circular side panel 1-1 plane, endoporus and
Boring；
Step 3: use wire rod quality to process depressed part 1-5 anti-splashing structure in planet carrier T-shaped axle 1 circular side panel 1-1；
Step 4: in the solder side Vehicle Processing chamfering of planet carrier p-type support 2, as shown in Fig. 6 and Figure 12, forms secondary
Anti-splashing structure；
Step 5: driving gear 4 is welded on the planet carrier p-type support 2 after step 4 processing；
Step 6: central gear 3 is arranged on the T-shaped axle of planet carrier 1；The T-shaped axle of planet carrier is in kind such as Fig. 8 and Fig. 9
Shown in；
Step 7: use laser welding by the projection of the depressed part 1-5 of T-shaped for planet carrier axle 1 Yu planet carrier p-type support 2
2-2 welds together；The depressed part 1-5 of the T-shaped axle of the planet carrier 1 and protruding 2-2 of planet carrier p-type support 2 collectively forms
Anti-splashing structure；
Step 8: install planetary gear after step 7 welding.Planet carrier is in kind as it is shown in fig. 7, planet carrier material object profile is as schemed
Shown in 13.
Detailed description of the invention five: present embodiment is unlike detailed description of the invention four: the Digit Control Machine Tool in described step one
It is combined for turnning and milling and double main shaft double knife towers structure.
Other step and parameter are identical with detailed description of the invention four.
Detailed description of the invention six: present embodiment is unlike detailed description of the invention four or five: the dish milling in described step 3
Blade type number is S60-063Q27-09, as shown in Figure 10.By wire rod quality and the main shaft automatic indexing function of customization band angle
Rapid milling is processed
Other step and parameter are identical with detailed description of the invention four or five.
Detailed description of the invention seven: present embodiment is unlike one of detailed description of the invention four to six: add in described step 3
The detailed process of work anti-splashing structure is:
The detailed process processing anti-splashing structure in described step 3 is:
A diameter of D of planet carrier T-shaped axle 1 circular side panel 1-1, with the center of circle of planet carrier T-shaped axle 1 circular side panel 1-1 be
The center of circle, makees circle a with the center of planet carrier T-shaped axle 1 circular side panel 1-1 and the line of centres of planetary gear hole 1-4 for radius；
With 0.28D as radius, making four circumcircles of circle a, each circumscribed center of circle is located normal to this circumcircle distance
On the extended line of the planet carrier T-shaped axle 1 circular side panel 1-1 diameter of two near planetary gear hole 1-4 circle center line connectings；By four
The position that individual circumcircle axle T-shaped with planet carrier 1 circular side panel 1-1 overlaps is milled into the depressed part 1-5 of 1.5mm, depressed part
1-5 wall axle T-shaped with planet carrier 1 circular side panel 1-1 needs processing plane to be protected to become hexagonal angle.
After laser through welding, remaining laser energy is the biggest, if plane welded seam, then can destroy plane to be protected and
The part (such as central gear body) assembled, by processing 1.5mm depressed part (anti-splashing structure), makes remaining laser
Energy major part acts on depressed part wall, and depressed part wall adds can produce wet look man-hour, can reflect laser, so depressed part
Wall is processed into certain angle (through repeatedly testing this, 120 degree of effects of angle are best), reflects the laser light to not interfere position
Put, reach anti-splashing effect.
Other step and parameter are identical with one of detailed description of the invention four to six.
Detailed description of the invention eight: present embodiment is unlike one of detailed description of the invention four to seven: fall in described step 4
Angle is the angle of chamfering tangent plane and the solder side of planet carrier p-type support (2), and chamfer angle is 28 °～32 °, and chamfering is cut
The width in face is 1.5～2.0mm.
Chamfering can be realized by Vehicle Processing chamfering, and chamfer angle 30 degree (left and right) is proper, and angle is the least, welding
Forming surface is bad, has pore；Angle is too big, and welding splash-proof effect is deteriorated, and 30 degree of (left and right) angles are by repeatedly
Test draws, this angle forms 30 degree of angles with the T-shaped shaft assembly of planet carrier, reaches secondary anti-splashing (the most sharp
During luminous reflectance produce splashing) effect.
Solder side at p-type support does a chamfering, forms a narrow and small inner chamber, is flown by the metal that laser welding produces
Spatter granular absorption at inner chamber sharp corner, and intercept stray laser, reach secondary anti-splashing, be finally reached anti-splash preferable
Effect.
Other step and parameter are identical with one of detailed description of the invention four to seven.
Detailed description of the invention nine: present embodiment is unlike one of detailed description of the invention four to eight: swash in described step 7
The welding angle of photocoagulation is incident laser and the center of circle of planet carrier T-shaped axle 1 circular side panel 1-1 and circumscribed circle center line connecting
Angle, it is central gear (3) diameter that sin welds angle=0.4d/D, d.Welding angle is critically important to anti-splash effect,
Angle is too big, and the laser power of needs will be very big, can produce splashing, and angle is the least affects welding effect.
Other step and parameter are identical with one of detailed description of the invention four to eight.
Claims (9)
1. a split planet carrier, it is characterised in that described split planet carrier includes the T-shaped axle of planet carrier (1) and planet carrier
P-type support (2)；
The T-shaped axle of planet carrier (1) is made up of circular side panel (1-1) and axle sleeve (1-2) two parts, described circular side panel (1-1)
With central gear hole (1-3), four planetary gear holes (1-4) and four depressed parts (1-5), central gear hole (1-3)
Being positioned at the center of circular side panel (1-1), (1-3) surrounding in central gear hole is uniformly distributed four planetary gear holes (1-4),
The edge of circular side panel (1-1) is uniformly arranged four depressed parts (1-5), planetary gear hole (1-4) and depressed part (1-5)
Being crisscross arranged successively, central gear hole (1-3) is arranged with axle sleeve (1-2) concentric；
Planet carrier p-type support (2) is with driving tooth wheel bore (2-1), four planetary gear holes (1-4) and four projections
(2-2) disc structure, with saw tooth around disc, driving tooth wheel bore (2-1) is positioned at the center of disc, main
(2-1) surrounding in moving gear hole is uniformly distributed four planetary gear holes (1-4), the edge of planet carrier p-type support (2)
It is uniformly arranged four projections (2-2), four planetary gear holes (1-4) and four projections (2-2) to be crisscross arranged successively, each
Protruding (2-2) is shaped as partial circle shape, with chamfering in each projection (2-2), planet carrier p-type support (2)
Four depressed parts (1-5) of four projections (2-2) axle T-shaped with carrier (1) circular side panel (1-1) link together；OK
Four planetary gear holes (1-4) of carrier p-type support (2) with four of carrier T-shaped axle (1) circular side panel (1-1)
Planetary gear hole (1-4) one_to_one corresponding.
A kind of split planet carrier the most according to claim 1, it is characterised in that described split planet carrier also includes too
Sun gear (3)；Central gear (3) is made up of central gear main body and central gear shaft, central gear shaft inserting line carrier T
In the axle sleeve (1-2) of profile shaft (1).
A kind of split planet carrier the most according to claim 3, it is characterised in that described split planet carrier also includes actively
Gear (4), driving gear (4) is connected to driving tooth wheel bore (2-1) position of planet carrier p-type support (2).
4. a split planet carrier welding splash-proof method, it is characterised in that described split planet carrier welding splash-proof method bag
Include following steps:
Step one: the circular side panel (1-1) of manipulator clamping planet carrier T-shaped axle (1) blank of Digit Control Machine Tool, adds industrial and commercial bank
The axle sleeve (1-2) of carrier T-shaped axle (1) blank；
Step 2: after axle sleeve (1-2) process finishing, processing circular side panel (1-1)；
Step 3: use wire rod quality to process depressed part (1-5) on planet carrier T-shaped axle (1) circular side panel (1-1)；
Step 4: the solder side at planet carrier p-type support (2) is got on the bus chamfering；
Step 5: driving gear (4) is welded on planet carrier p-type support (2) after step 4 processing；
Step 6: central gear (3) is arranged on the T-shaped axle of planet carrier (1)；
Step 7: use laser welding by the depressed part (1-5) of T-shaped for planet carrier axle (1) and planet carrier p-type support (2)
Projection (2-2) weld together；The depressed part (1-5) of the T-shaped axle of planet carrier (1) and planet carrier p-type support (2)
Projection (2-2) collectively form anti-splashing structure；
Step 8: install planetary gear after step 7 welding.
A kind of split planet carrier welding splash-proof method the most according to claim 4, it is characterised in that described step one
In Digit Control Machine Tool be that turnning and milling is compound and double main shaft double knife towers structure.
A kind of split planet carrier welding splash-proof method the most according to claim 5, it is characterised in that described step 3
In wire rod quality model be S60-063Q27-09.
A kind of split planet carrier welding splash-proof method the most according to claim 6, it is characterised in that described step 3
The detailed process of middle processing anti-splashing structure is:
A diameter of D of planet carrier T-shaped axle (1) circular side panel (1-1), with planet carrier T-shaped axle (1) circular side panel (1-1)
The center of circle be the center of circle, with the center at the center of planet carrier T-shaped axle (1) circular side panel (1-1) with planetary gear hole (1-4)
Line is that radius makees circle a；With 0.28D as radius, making four circumcircles of circle a, each circumscribed center of circle is located normal to
The planet carrier T-shaped axle (1) circular side panel (1-1) of two planetary gear hole (1-4) circle center line connectings closest with this circumcircle
On the extended line of diameter；The position that four circumcircles axle T-shaped with planet carrier (1) circular side panel (1-1) overlap is milled into
The depressed part (1-5) of 1.5mm, the wall of depressed part (1-5) and planet carrier T-shaped axle (1) circular side panel (1-1) need to protect
The processing plane protected becomes hexagonal angle.
A kind of split planet carrier welding splash-proof method the most according to claim 7, it is characterised in that described step 4
Middle chamfering is the angle of chamfering tangent plane and the solder side of planet carrier p-type support (2), and chamfer angle is 28 °～32 °, chamfering
The width of tangent plane is 1.5～2.0mm.
A kind of split planet carrier welding splash-proof method the most according to claim 8, it is characterised in that described step 7
The welding angle of middle laser welding is incident laser and the center of circle of planet carrier T-shaped axle (1) circular side panel (1-1) and circumcircle
The angle of circle center line connecting, it is central gear (3) diameter that sin welds angle=0.4d/D, d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566519.5A CN106015543B (en) | 2016-07-19 | 2016-07-19 | A kind of split planet carrier welding splash-proof method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566519.5A CN106015543B (en) | 2016-07-19 | 2016-07-19 | A kind of split planet carrier welding splash-proof method |
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| CN106015543A true CN106015543A (en) | 2016-10-12 |
| CN106015543B CN106015543B (en) | 2018-03-27 |
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| CN107139140A (en) * | 2017-07-05 | 2017-09-08 | 浙江格致工具有限公司 | A kind of hand held power machine with centralising device |
| CN109877532A (en) * | 2018-11-30 | 2019-06-14 | 中国第一汽车股份有限公司 | A kind of processing method of split type planet carrier assembly |
| CN110757057A (en) * | 2019-10-17 | 2020-02-07 | 天津天海同步科技有限公司 | Anti-off welding structure and process for welding new energy reducer parts |
| US11619302B2 (en) * | 2017-06-14 | 2023-04-04 | Dana Automotive Systems Group, Llc | Actuation mechanism |
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| CN205937779U (en) * | 2016-07-19 | 2017-02-08 | 青岛联源通机械有限公司 | Components of a whole that can function independently planet carrier |
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| CN101782144A (en) * | 2010-03-24 | 2010-07-21 | 盛瑞传动股份有限公司 | Planet carrier and processing technology thereof |
| CN102878277A (en) * | 2012-10-26 | 2013-01-16 | 盛瑞传动股份有限公司 | Planet carrier welding assembly and processing technology thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11619302B2 (en) * | 2017-06-14 | 2023-04-04 | Dana Automotive Systems Group, Llc | Actuation mechanism |
| CN107139140A (en) * | 2017-07-05 | 2017-09-08 | 浙江格致工具有限公司 | A kind of hand held power machine with centralising device |
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| CN109877532A (en) * | 2018-11-30 | 2019-06-14 | 中国第一汽车股份有限公司 | A kind of processing method of split type planet carrier assembly |
| CN110757057A (en) * | 2019-10-17 | 2020-02-07 | 天津天海同步科技有限公司 | Anti-off welding structure and process for welding new energy reducer parts |
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| CN106015543B (en) | 2018-03-27 |
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