CN106399915A - Carburization combined tool and heat treatment method of synchronizer combined gears - Google Patents
Carburization combined tool and heat treatment method of synchronizer combined gears Download PDFInfo
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- CN106399915A CN106399915A CN201611155579.4A CN201611155579A CN106399915A CN 106399915 A CN106399915 A CN 106399915A CN 201611155579 A CN201611155579 A CN 201611155579A CN 106399915 A CN106399915 A CN 106399915A
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- Prior art keywords
- pad
- carburizing
- combination gear
- square position
- locating
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
- C23C8/22—Carburising of ferrous surfaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention provides a carburization combined tool and heat treatment method of synchronizer combined gears. The carburization combined tool comprises a main bottom plate, flat plates, locating supports, flat supporting gaskets and flat pressing gaskets. The number of the flat plates is at least one, and the main bottom plate and the flat plates are sequentially arranged in parallel from bottom to top and are connected through at least one stand column. The multiple corresponding locating supports are vertically arranged on each flat plate and are transversely or vertically arranged on the flat plate in a staggered manner. The lower portion of each locating support is detachably provided with the corresponding flat supporting gasket, and the lower surface of each flat supporting gasket is in contact with the upper surface of the corresponding flat plate. The upper portion of each locating support is detachably provided with the corresponding flat pressing gasket. At least one combined gear can be placed between each flat pressing gasket and the corresponding flat supporting gasket from bottom to top, and the lower surface of each flat pressing gasket is in contact with the upper surface of the corresponding uppermost combined gear. According to the carburization combined tool and heat treatment method of the synchronizer combined gears, the problem of heat deformation generated after combined gear quenching is solved, and the precision of finished products is improved.
Description
Technical field
The invention belongs to technical field of metal heat treatment, especially relate to a kind of carburizing combination work of lock unit combination gear
Dress and heat treatment method.
Background technology
Combination gear in lock unit is a kind of thin-wall part, and thin-wall part is thin-wall part in maximum problem after Overheating Treatment
Plane be susceptible to torsional deformation, at present carburizing and quenching, equipment are used to the heat treatment of the combination gear in lock unit
Can be selected for case-hardening furnace or continuous carbonization production line is carried out, its charging mode can be selected for mounting mode or single-piece paperback mode.
But for the workpiece shown in Fig. 1, the deformation after its carburizing and quenching is all very serious problem for a long time, workpiece after heat treatment
Flatness is all overproof serious, and when serious, flatness can exceed more than 0.30, passes through to adjust heat treatment parameter for case above
Effect is inconspicuous afterwards.
Content of the invention
In view of this, it is contemplated that proposing a kind of carburizing assembled tool of lock unit combination gear and heat treatment method,
To solve the thermal deformation problem after combination gear quenching, improve the precision of finished product.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that：
The carburizing assembled tool of lock unit combination gear, including main floor, square position, locating support, lifts pad, concora crush pad；
Described square position arranges at least one, and described main floor and each square position are arranged in parallel successively from the bottom to top, and extremely
Pass through a column less to be connected；
Multiple locating supports are vertically installed with one square position, multiple locating supports laterally or vertically interlock on square position
Arrangement, the bottom of each locating support is detachably provided with respectively and lifts pad, the upper table of the described lower surface lifting pad and square position
Face contacts, and the top of each locating support is detachably provided with concora crush pad, from the bottom to top can between described concora crush pad peace pad
Place at least one combination gear, the upper surface of the lower surface of concora crush pad and the combination gear of the top.
Further, the described peaceful pressure pad of pad that lifts is annular, and the inner ring lifting the peaceful pressure pad of pad all props up with positioning
Frame concentric gap coordinates, and the internal diameter lifting the peaceful pressure pad of pad is all identical with the internal diameter of combination gear, lifts the outer of the peaceful pressure pad of pad
Footpath is respectively less than the external diameter of combination gear.
Further, the described thickness lifting the peaceful pressure pad of pad is 16mm.
Further, the spoke of described combination gear along the circumferential direction has multiple lightening holes, described lift pad and
The side of concora crush pad is respectively equipped with the first locating piece of the installation that matches with lightening hole；
The described opposite side lifting the peaceful pressure pad of pad is respectively equipped with least one second locating piece, and the reinforcement of square position sets
There is the locating slot matching with the second locating piece.
Further, the column between each two square position is cased with sleeve respectively.
A kind of carburizing assembled tool using this lock unit combination gear simultaneously carries out heat treatment to the combination gear loading
Method, the carburizing assembled tool installing lock unit combination gear is put into carburizing tinuous production and carries out heat treatment, specifically include
Following steps：
(1) square position positioning in the hole is put in described locating support bottom, pad center will be lifted and run through locating support and keep flat
On square position, then again combination gear orientation is placed on lift pad upper and with the upper surface lifting pad, in the knot of the superiors
Close and putting a concora crush pad above gear；
(2) enter in the debinding furnace described carburizing assembled tool charged in step (1) being put into carburizing tinuous production
Row preheating, defat；
(3) put into main stove and carry out carburizing；
(4) after carburizing, described transmission combination gear is quenched；
(5) it is carried out using cleaning machine；
(6) put into tempering in tempering furnace；
(7) discharging.
Further, a carburizing assembled tool was put into described carburizing tinuous production in every 25 minutes, preheating temperature is
360-380 DEG C, carburizing temperature is 870-880 DEG C, carbon potential 0.95-1.0, and hardening heat is 800-810 DEG C, and the cool time is 8-10
Minute, temperature is 160-170 DEG C.
Further, described concora crush pad or the end contact, concora crush pad or the material lifting pad that lift pad and combination gear
For heat proof material, its flatness is within 0.04.
Further, including four square positions, each square position of wherein three square positions is respectively equipped with 13 locating supports, often
13 combination gears are separately installed with individual locating support, the top of the superiors' combination gear is also equipped with a square position.
With respect to prior art, the carburizing assembled tool of lock unit combination gear of the present invention and heat treatment method have
There is following advantage：
Carburizing assembled tool of the present invention and heat treatment method by by workpiece with the center of circle position after superposition keeps flat
Bottom puts a thickening plain cushion, puts a point in the top and thickeies plain cushion, with fixed position, fixed-direction, fixed number side
Formula, to load workpiece, executes the technological parameter such as rational carburizing temperature and hardening heat so that workpiece is ensureing overall carburized layer
Uniformly, in the case that metallographic structure is good, effectively weaken the plane deformation amount after workpiece carbonization quenching, thus improve such
Respond well after the finished product accuracy of type workpiece, and described carburizing assembled tool life-time service.
Brief description
The accompanying drawing constituting the part of the present invention is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the front view of the combination gear described in the embodiment of the present invention；
Fig. 2 is the lock unit combination gear carburizing assembled tool overall structure diagram described in the embodiment of the present invention；
Fig. 3 is that the combination gear described in the embodiment of the present invention is assembled to the sectional view after locating support；
Fig. 4 is the square position and combination gear " loaded " position structural representation described in the embodiment of the present invention；
Fig. 5 is the one side structural representation that lifting described in the embodiment of the present invention is padded or concora crush pad is contacted with combination gear
Figure；
Fig. 6 is the one side structural representation that lifting described in the embodiment of the present invention is padded or concora crush pad is contacted with square position.
Description of reference numerals：
1- main floor；2- square position；201- locating slot；202- location hole；203- reinforcement；3- locating support；4- lifts pad；
5- concora crush pad；6- combination gear；601- lightening hole；7- sleeve；8- column；9- first locating piece；10- second locating piece.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combine.
In describing the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " on ", D score,
The orientation of instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The restriction of the present invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or hint phase
To importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can
To express or to implicitly include one or more this feature.In describing the invention, unless otherwise stated, " multiple "
It is meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can
To be to be mechanically connected or electrical connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
To describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As in Figure 2-4, the carburizing assembled tool of lock unit combination gear, including main floor 1, square position 2, locating support 3,
Lift pad 4, concora crush pad 5；
Described square position 2 arranges at least one, and described main floor 1 and each square position 2 are arranged in parallel successively from the bottom to top, and
It is connected at least through a column 8, the column between each two square position 2 is cased with sleeve 7 respectively；
Multiple locating supports 3 are vertically installed with one square position 2, multiple locating supports 3 on square position 2 laterally or vertically
It is staggered, the bottom of each locating support 3 is detachably provided with respectively and lifts pad 4, the described lower surface lifting pad 4 and square position
2 upper surface, the top of each locating support 3 is detachably provided with concora crush pad 5, between described concora crush pad 5 peace pad 4
At least one combination gear 6 can be placed from the bottom to top, the lower surface of concora crush pad 5 is connect with the upper surface of the combination gear 6 of the top
Touch.
As shown in Fig. 1, Fig. 5 and Fig. 6, the described peaceful pressure pad 5 of pad 4 that lifts is annular, lifts the peaceful pressure pad 5 of pad 4
Inner ring is all coordinated with locating support 3 concentric gap, and the internal diameter lifting the peaceful pressure pad 5 of pad 4 is all identical with the internal diameter of combination gear 6,
The external diameter lifting the peaceful pressure pad 5 of pad 4 is respectively less than the external diameter of combination gear 6；The described thickness lifting the peaceful pressure pad 5 of pad 4 is
16mm；Multiple lightening holes 601 are along the circumferential direction had on the spoke of described combination gear 6, the described pad 4 peaceful pressure pad 5 of lifting
Side is respectively equipped with the first locating piece 9 of the installation that matches with lightening hole 601；The described opposite side lifting the peaceful pressure pad 5 of pad 4 divides
It is not provided with least one second locating piece 10, the reinforcement 203 of square position is provided with the locating slot matching with the second locating piece 10
201.
The carburizing assembled tool of lock unit combination gear simultaneously carries out heat-treating methods to the combination gear loading, and will install
The carburizing assembled tool of lock unit combination gear 6 is put into carburizing tinuous production and is carried out heat treatment, specifically includes following steps：
(1) described locating support 3 bottom is put in the location hole 202 of square position 2, pad 4 center will be lifted and run through locating support 3
And lie on square position 2, then again by combination gear 6 orientation be placed on lift on pad 4 and with the upper surface lifting pad 4,
A concora crush pad 5 is being put above the combination gear 6 of the superiors；
(2) enter in the debinding furnace described carburizing assembled tool charged in step (1) being put into carburizing tinuous production
Row preheating, defat；
(3) put into main stove and carry out carburizing；
(4) after carburizing, described transmission combination gear 6 is quenched；
(5) it is carried out using cleaning machine；
(6) put into tempering in tempering furnace；
(7) discharging.
Wherein, a carburizing assembled tool was put into described carburizing tinuous production in every 25 minutes, preheating temperature is 360-
380 DEG C, carburizing temperature is 870-880 DEG C, carbon potential 0.95-1.0, and hardening heat is 800-810 DEG C, and the cool time divides for 8-10
Clock, temperature is 160-170 DEG C.
Described concora crush pad 5 or the end contact lifting pad 4 and combination gear 6, concora crush pad 5 or the material lifting pad 4 are resistance to
Hot material, its flatness is within 0.04.
This device includes four square positions 2, each square position 2 of wherein three square positions 2 being respectively equipped with 13 locating supports 3,
13 combination gears 6 are separately installed with each locating support 3, the top of the superiors' combination gear 6 is also equipped with a square position 2.
The material of the combination gear 6 of the present invention is 16MnCr5H, using the metallographic of the transmission conjunction gear 6 after the method processing
Result：Surface of the work hardness HRC58-62, effective hardness layer controls between 0.35-0.55, martensite and paralympic 1-3 level, carbon
Compound 1-4 level, center portion ferrite 1-5 level, after heat treatment, workpiece planarization controls within 0.05, and Roundness of Workpiece is within 0.05.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (9)
1. lock unit combination gear carburizing assembled tool it is characterised in that：Including main floor (1), square position (2), locating support
(3) pad (4), concora crush pad (5), are lifted；
Described square position (2) arranges at least one, and described main floor (1) and each square position (2) are arranged in parallel successively from the bottom to top, and
And be connected at least through a column (8)；
Multiple locating supports (3) are vertically installed with one square position (2), multiple locating supports (3) square position (2) upper laterally or
Vertically staggered, the bottom of each locating support (3) is detachably provided with respectively and lifts pad (4), described lifts under pad (4)
Surface and the upper surface of square position (2), the top of each locating support (3) is detachably provided with concora crush pad (5), described concora crush
Can place at least one combination gear (6) between pad (5) peace pad (4) from the bottom to top, the lower surface of concora crush pad (5) with go up most
The upper surface of the combination gear (6) on side.
2. lock unit combination gear according to claim 1 carburizing assembled tool it is characterised in that：Described lift pad
(4) peaceful pressure pad (5) is annular, and the inner ring lifting pad (4) peace pressure pad (5) is all joined with locating support (3) concentric gap
Close, the internal diameter lifting pad (4) peace pressure pad (5) is all identical with the internal diameter of combination gear (6), lift pad (4) peace pressure pad (5)
External diameter is respectively less than the external diameter of combination gear (6).
3. lock unit combination gear according to claim 1 carburizing assembled tool it is characterised in that：Described lift pad
(4) thickness of peaceful pressure pad (5) is 16mm.
4. the lock unit combination gear according to any one of claim 1-3 carburizing assembled tool it is characterised in that：Described
Multiple lightening holes (601) are along the circumferential direction had on the spoke of combination gear (6), described lifts the one of pad (4) peace pressure pad (5)
Side is respectively equipped with first locating piece (9) of the installation that matches with lightening hole (601)；
The described opposite side lifting pad (4) peace pressure pad (5) is respectively equipped with least one second locating piece (10), the reinforcement of square position
Muscle (203) is provided with the locating slot (201) matching with the second locating piece (10).
5. lock unit combination gear according to claim 1 carburizing assembled tool it is characterised in that：Each two square position
(2) sleeve (7) is cased with respectively on the column between.
6. a kind of carburizing assembled tool using the lock unit combination gear described in claim 1 and to load combination gear enter
Row heat-treating methods it is characterised in that：The carburizing assembled tool installing lock unit combination gear (6) is put into carburizing continuously give birth to
Producing line carries out heat treatment, specifically includes following steps：
(1) described locating support (3) bottom is put in square position (2) location hole (202), pad (4) center will be lifted and run through positioning
Support (3) and lie on square position (2), then again combination gear (6) orientation is placed on lift pad (4) go up and with lift pad (4)
Upper surface, putting a concora crush pad (5) above the combination gear (6) of the superiors；
(2) carry out pre- in the debinding furnace described carburizing assembled tool charged in step (1) being put into carburizing tinuous production
Heat, defat；
(3) put into main stove and carry out carburizing；
(4) after carburizing, described transmission combination gear (6) is quenched；
(5) it is carried out using cleaning machine；
(6) put into tempering in tempering furnace；
(7) discharging.
7. heat treatment method according to claim 6 it is characterised in that：A carburizing assembled tool was put in every 25 minutes
Described carburizing tinuous production, preheating temperature is 360-380 DEG C, and carburizing temperature is 870-880 DEG C, carbon potential 0.95-1.0, quenching
Temperature is 800-810 DEG C, and the cool time is 8-10 minute, and temperature is 160-170 DEG C.
8. heat treatment method according to claim 6 it is characterised in that：Described concora crush pad (5) or lift pad (4) with combine
The end contact of gear (6), concora crush pad (5) or the material lifting pad (4) are heat proof material, and its flatness is within 0.04.
9. heat treatment method according to claim 6 it is characterised in that：Including four square positions (2), wherein three square positions
(2) 13 locating supports (3) are respectively equipped with each square position (2), each locating support (3) is separately installed with 13 combinations
Gear (6), the top of the superiors' combination gear (6) is also equipped with a square position (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611155579.4A CN106399915A (en) | 2016-12-14 | 2016-12-14 | Carburization combined tool and heat treatment method of synchronizer combined gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611155579.4A CN106399915A (en) | 2016-12-14 | 2016-12-14 | Carburization combined tool and heat treatment method of synchronizer combined gears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106399915A true CN106399915A (en) | 2017-02-15 |
Family
ID=58087662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611155579.4A Pending CN106399915A (en) | 2016-12-14 | 2016-12-14 | Carburization combined tool and heat treatment method of synchronizer combined gears |
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| CN107739791A (en) * | 2017-11-02 | 2018-02-27 | 山东上汽汽车变速器有限公司 | A kind of flitch, bin and workpiece arrangement method for being used for heat treatment and high pressure gas quenching |
| CN107746913A (en) * | 2017-10-11 | 2018-03-02 | 中国航发南方工业有限公司 | Quenching core and process for quenching for cylindric steel thin-walled parts |
| CN108588384A (en) * | 2018-04-17 | 2018-09-28 | 桐乡市恒泰精密机械有限公司 | The heat treatment special and its heat treatment process of automobile air conditioner compressor main shaft |
| CN109367968A (en) * | 2018-12-05 | 2019-02-22 | 盐城远大金属科技有限公司 | A kind of cam special tooling |
| CN111485075A (en) * | 2020-04-30 | 2020-08-04 | 四川联茂机械制造有限公司 | Straight shaft positioning tool |
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| CN111485075A (en) * | 2020-04-30 | 2020-08-04 | 四川联茂机械制造有限公司 | Straight shaft positioning tool |
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