CN208917314U - Bevel gear is heat-treated double continuous carbonization, presses production line of quenching - Google Patents
Bevel gear is heat-treated double continuous carbonization, presses production line of quenching Download PDFInfo
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- CN208917314U CN208917314U CN201821655007.7U CN201821655007U CN208917314U CN 208917314 U CN208917314 U CN 208917314U CN 201821655007 U CN201821655007 U CN 201821655007U CN 208917314 U CN208917314 U CN 208917314U
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- furnace
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Abstract
The utility model discloses a kind of bevel gears to be heat-treated double continuous carbonization, presses production line of quenching, in Quenching press and the robots of 360 ° of rotations of setting energy between holding furnace of quenching is pressed to be transported through, transhipment time is short, control is within 13s, workpiece is avoided to expose and aoxidize in air for a long time, the high surface hardness that ensure that workpiece, improves service life；Double heat-treatment lines are designed in a production line, using band, there are two the oil-quenching tanks of oil groove and one to press holding furnace of quenching, and in conjunction with pusher speed or temperature control is improved, allows to produce the bevel gear of two kinds of performance indicators, a production line is saved, production efficiency is improved.
Description
Technical field
The utility model relates to gear machining technology fields, and in particular to a kind of bevel gear be heat-treated double continuous carbonization,
Press production line of quenching.
Background technique
Since bevel gear needs to run at high speed under actual operating conditions, then requiring it with some strength, wear-resisting
Property and core obdurability.The quenching treatment that case-carbonizing is carried out to gear, can be improved gear surface intensity and wearability, increases simultaneously
Add its core obdurability.
In existing carburizing production line, after carrying out carburizing to bevel gear, carried out when needing to be transported to Quenching press
It is currently to be transported by manipulator when heat treatment, for transhipment time between 25s-30s, transhipment time is long, and workpiece surface can quilt
Oxidation causes it to be easy decarburization, and then keeps workpiece surface hardness low, and service life is short；Pressure is not needed after workpiece carbonization when quenching,
In order to avoid influencing surface hardness since distance, workpiece surface temperature reduce, existing carburizing production line can only select one
A oil groove, the oil in oil groove are only the slow oil of cooling velocity or the fast oil of cooling velocity, and will cause production line in this way can only give birth to
A kind of bevel gear of performance indicator is produced, if necessary to make the bevel gear of two kinds of different performance indexs, must just be produced with two
Line, consumes huge amounts of material, and production efficiency is low.
Summary of the invention
In order to solve the above problem in the prior art, the utility model provides a kind of bevel gear heat treatment double continuous infiltration
Carbon presses production line of quenching, and robot transhipment time is short, controls within 13s, ensure that the high surface hardness of workpiece, improves and uses
Service life, and double heat-treatment lines are utilized, the bevel gear of two kinds of performance indicators can be produced, a production line is saved, is improved
Production efficiency.
The purpose of this utility model is achieved in that
Bevel gear is heat-treated double continuous carbonization, presses quench production line, including feeding web, and feeding web connects pre- oxygen
Change furnace, the tail end connection of pre-oxidation furnace has the heating carburizing furnace of double pipeline, and the connection of heating carburizing furnace other end side is low
Holding furnace of quenching is pressed in the other end side connection of warm diffusion furnace, low temperature diffusion furnace, presses the another side connection oil-quenching tank for holding furnace of quenching,
In the middle part of the another side connection conveyer belt of oil-quenching tank, transmission tail connects cleaning machine, and cleaning machine connects tempering furnace, and tempering furnace connects
It gives a dinner for a visitor from afar cold bench, air-cooled connection feeding web；The lateral surface for pressing holding furnace of quenching is equipped with discharge door, accepts below discharge door
Support plate, the tail end of support plate are equipped with the manipulator I for pulling out workpiece, and the side of manipulator I is equipped with 360 ° of rotations of energy
Robot, the lateral surface of robot are equipped with Quenching press, and the side of the separate manipulator I of robot is equipped with pallet and recycles frame, support
The medial surface that disk recycles frame is transmission belt end；Set in the oil-quenching tank there are two oil groove, be followed successively by heating carburizing furnace according to
Secondary is one area of carburizing, 2nd area of carburizing, High temperature diffusion area, one area of carburizing, 2nd area of carburizing, High temperature diffusion area, low temperature diffusion furnace and pressure
It quenches and is respectively provided with the oxygen probe of detection carbon potential in holding furnace, the oxygen probe of a carbon potential detection is correspondingly connected with a carbon potential control
Device processed.
The robot includes rotary base, connecting rod rotating arm and manipulator II, connects connecting rod rotating arm on rotary base,
The head of connecting rod rotating arm connects manipulator II, and manipulator II includes workpiece clamping plate and pallet clamping plate, and pallet clamping plate is located at workpiece
Outside above clamping plate.
The pre-oxidation furnace, heating carburizing furnace, low temperature diffusion furnace, pressure quench holding furnace and oil-quenching tank is push-down,
It is provided with and pushes away chain mechanism.
The probe material of the oxygen probe is zirconium oxide.
The oxygen probe is five.
Compared with the existing technology, as follows the advantages of the utility model:
1. being transported through by robot, transhipment time is short, controls within 13s, avoids workpiece for a long time in air
Middle exposure and aoxidize, ensure that the high surface hardness of workpiece, improve service life；
2. designing double heat-treatment lines in a production line, using band, there are two the oil-quenching tanks of oil groove and a pressure to quench
Holding furnace allows to produce the bevel gear of two kinds of performance indicators, saves one in conjunction with pusher speed or temperature control is improved
Production line improves production efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of robot.
Wherein, 1 is feeding web；2 be pre-oxidation furnace；3 be heating carburizing furnace, and 31 be oxygen probe, and 32 be double conveying
Line；4 be low temperature diffusion furnace；5 be to press holding furnace of quenching, and 51 be support plate；6 be manipulator I；7 be robot, and 71 be rotary base,
72 be connecting rod rotating arm, and 73 be manipulator II, and 74 be cylinder I, and 75 be workpiece clamping plate, and 76 be pallet clamping plate, and 77 be support arm I,
78 be support arm II, and 79 be sliding block；8 be Quenching press；9 be pallet recycling frame；10 be conveyer belt；11 be oil-quenching tank；12 are
Cleaning machine；13 be tempering furnace；14 be air-cooled.
Specific embodiment
The utility model is headed by workpiece upstream end, using workpiece outlet end as tail.
As shown in Figure 1, arrow direction is the conveying direction of workpiece in Fig. 1, a kind of bevel gear be heat-treated double continuous carbonization,
Quench production line, including feeding web 1 are pressed, feeding web 1 connects pre-oxidation furnace 2, and the tail end connection of pre-oxidation furnace 2 is with double
The heating carburizing 3 of pipeline 32 is arranged, heating 3 other end side of carburizing is connected to low temperature diffusion furnace 4, and the side of low temperature diffusion furnace 4 connects
It is logical to press holding furnace 5 of quenching, the another side connection oil-quenching tank 11 for holding furnace 5 of quenching is pressed, the another side of oil-quenching tank 11 connects conveyer belt
10 middle parts, 10 tail portion of conveyer belt connect cleaning machine 12, and cleaning machine 12 connects tempering furnace 13, and tempering furnace 13 connects air-cooled 14, wind
Cold bench 14 connects feeding web 1；The lateral surface for pressing holding furnace 5 of quenching is equipped with discharge door, undertakes support plate below discharge door
51, the tail end of support plate 51 is equipped with the manipulator I 6 for pulling out workpiece, and the side of manipulator I 6 is equipped with 360 ° of rotations of energy
Robot 7, the lateral surface of robot 7 are equipped with Quenching press 8, and the side of the separate manipulator I 6 of robot 7 is recycled equipped with pallet
Frame 9, the medial surface that pallet recycles frame 9 is 10 end of conveyer belt；Oil groove there are two being set in the oil-quenching tank 11, heating carburizing furnace
One area of carburizing, 2nd area of carburizing, High temperature diffusion area, one area of carburizing, 2nd area of carburizing, High temperature diffusion area, low temperature diffusion furnace are followed successively by 3
4 are respectively provided with the oxygen probe 31 of detection carbon potential with pressing in holding furnace 5 of quenching, the oxygen probe 31 of a carbon potential detection is correspondingly connected with
One carbon-potential control device.
Above-mentioned feeding web 1 is both to be also discharge pit at charging.The Quenching press 8 is tight for controlling deformation requirements
The part of lattice, oil-quenching tank 11 are equipped with the container of hardening media, when workpiece immerses cooling in slot, workpiece need to be can guarantee to close
The cooling velocity of reason equably completes hardening step, and workpiece is made to reach technical requirements.Above-mentioned pre-oxidation furnace 2, heating carburizing furnace 3,
Low temperature diffusion furnace 4, quench holding furnace 5, oil-quenching tank 11, cleaning machine 12, tempering furnace 13, Quenching press 8 of pressure are the normal of this field
See equipment, is the prior art, details are not described herein.The chain-drive mechanism for drawing charging tray on manipulator I 6 containing hook, can be by work
Part is quenched from pressure to be pulled out in holding furnace 5, is the prior art, is transported through convenient for subsequent robot 7 to workpiece.
As shown in Fig. 2, the robot 7 includes rotary base 71, connecting rod rotating arm 72 and manipulator II 73, rotary base
Connecting rod rotating arm 72 is connected on 71, the head of connecting rod rotating arm 72 connects manipulator II 73, and robot 7 further includes control manipulator
The controller of II 73 work, manipulator II 73 include workpiece clamping plate 75 and pallet clamping plate 76, and pallet clamping plate 76 is located at workpiece clamping plate
The outside of 75 tops.Connecting rod rotating arm 72 is able to drive manipulator II 73 and rotates 360 °.The manufacturer of robot 7 is
FANUC Robot R-2000iC/210F；Its model A05B-1333-B205.
As shown in Fig. 2, the support arm I 77 of the affixed L-type of the workpiece clamping plate 75, the top of support arm I 77 connects cylinder II
(being not drawn into figure), the piston rod of cylinder II upward, the affixed L-type support arm II 78 of pallet clamping plate 76, the top of support arm II 78
The piston rod of the affixed cylinder I 74 being vertically arranged, cylinder I 74 are fixed in the rack (not marking in figure) of manipulator II 73, machine
It is equipped with track (being not drawn into figure) vertically on frame, the affixed sliding block 79 in the inside of support arm II 78, sliding block 79 is connected to the rail of rack
On road, it is also possible to other drive connection mechanisms.
Preferably, the pre-oxidation furnace 2, heating carburizing furnace 3, low temperature diffusion furnace 4, pressure quench holding furnace 5 and oil-quenching tank 11,
Cleaning machine 12, tempering furnace 13 are push-down, are provided with and push away chain mechanism, and air-cooled 14 also is provided with pushing away chain mechanism, in order to
Workpiece is pushed into subsequent processing.
Preferably, the probe material of the oxygen probe 31 is zirconium oxide.
In order to measure different zones carbon atom quantity, the oxygen probe 31 be five, in order to preferably control infiltration
Carbon process.
The production technology that the bevel gear is heat-treated double continuous carbonization, presses production line of quenching, specific as follows:
1. feeding: chassis is first placed on feeding web 1 by operator, then by workpiece to be processed by charging requirement dress
Enter on stacking material frame, the corresponding pallet of workpiece, then stack it is several layers of after, place it on chassis, form workpiece combination,
Workpiece one to be processed folded one is stacked and placed on feeding web 1 by so circulation, and workpiece enters with feeding web 1 to be pre-oxidized
Furnace 2；
2. pre-oxidation: set inside the pre-oxidation furnace 2 of push-down there are four charging tray station, workpiece combines in pre-oxidation furnace 2
It is pre-oxidized, temperature range is that area's temperature is 390-401 DEG C；Two area's temperature are 420-430 DEG C, and total preoxidation time is
100-120min。
3. heating carburizing and diffusion: after the completion of pre-oxidation heating, charging tray is transferred to heating by pushing away chain mechanism by workpiece combination
In carburizer 3, by the way that the different pusher periods (carburizing time) is arranged, the carburizing for completing the different layer depths under identical furnace gas is wanted
Ask, set in heating carburizing furnace 3 there are three detection carbon potential 31, three areas of oxygen probe be provided with 12 temperature sensors altogether (in figure
It is not drawn into), and it is respectively provided with the agitation fan (being not drawn into figure) for furnace atmosphere circulation in the region of each carbon potential detection, with
The amount and temperature of carbon atom in furnace are monitored, while also can guarantee that each space furnace gas in entire burner hearth is uniform, that is, ensure that carbon
Atom is uniform.When the preset value is exceeded, controller can sound an alarm, in order to which operator is handled in time, in heating carburizing furnace 3
Equipped with double pipeline 32, in order to handle multiple workpiece simultaneously, when the tail end of heating carburizing furnace 3 releases a workpiece combination
When, the head end of heating carburizing furnace 3 can enter a workpiece combination, and double pipeline 32 is alternately released or charging, a workpiece group
3-7 workpiece is shared in conjunction.
4. cooling diffusion: after reaching the carburization process time of workpiece setting, workpiece combination can be pushed into low temperature and expanded by push rod
It dissipates in furnace 4, carries out workpiece and spread process, be equipped with seven charging tray stations in low temperature diffusion furnace 4；One is equipped in low temperature diffusion furnace 4
The oxygen probe 31 of carbon potential detection and a temperature sensor, while there are one the agitation fans for being used for furnace atmosphere circulation, with prison
The amount and temperature of carbon atom in furnace are surveyed, while also can guarantee that each space furnace gas in entire burner hearth is uniform, that is, ensure that carbon original
Sub uniform, when the preset value is exceeded, controller can sound an alarm, in order to which operator is handled in time.Wherein, low temperature diffusion furnace
Temperature in 4 is 820-850 DEG C, total time 170-210min.
5. heat preservation, quenching: after workpiece carbonization, High temperature diffusion, low temperature diffusion process, being wanted according to work pieces process technique
It asks, quenches holding furnace 5 into Quenching press 8 or oil-quenching tank 11 through pressure, all workpiece quenched without pressure enter oil-quenching tank 11,
Pressure quench be transversely provided in holding furnace 5 two for quenching oil groove push away chain mechanism general when workpiece needs to enter oil-quenching tank 11
In Fig. 1 that workpiece combination push-in pressure is quenched in holding furnace 5 after the oil groove on the right, it is and then pushed into the oil groove of oil-quenching tank 11 straight
In, the cooling velocity needed for being required according to workpiece technique selects oil groove, completes hardening step, then workpiece combines push-in transmission
On band 10, to carry out subsequent processing；When workpiece needs to enter Quenching press 8, pushes away material pulling mechanism and combine workpiece push-in and press and quench
In Fig. 1 in moist closet 5 after the station on the right, then pushes it into press in holding furnace 5 of quenching and kept the temperature and seeped in the station on the left side
Carbon heat treatment, after the completion of heat treatment, pressure quench holding furnace 5 discharge door open, manipulator I 6 by workpiece combine in top layer 1
The pull-out of part workpiece is placed in support plate 51, and other workpiece combinations drop to the heat preservation pressed in holding furnace 5 of quenching below the station on the left side
Indoor heat insulating.Wherein, pressing temperature in holding furnace 5 of quenching is 860-900 DEG C, and the time is 3-5min/ part.Then robot 7 is by workpiece
Top layer's piece-holder in combination is transferred in Quenching press 8 and is quenched, then by pallet clamping, be transferred to pallet
It recycles in frame 9, one end on conveyer belt 10 close to robot 7 is placed with chassis in advance, after the completion of the processing of top layer's workpiece quenching
Robot 7 is transferred on conveyer belt 10 on the chassis of one end of robot 7.The left side in holding furnace 5 at this point, pressure is quenched
Remaining workpiece rises in moist closet below station, manipulator I 6 again by workpiece combine in 1 workpiece of top layer draw
It is placed in support plate 51 out, then repeatedly aforesaid operations, successively shifts workpiece, pallet, when to the bottom of workpiece combination, passed
The workpiece of the superposition on band 10 is sent to be transported away with conveyer belt 10, bottom chassis is transferred to 10 end of conveyer belt by robot 7, with
Standby superposition next time workpiece is used.
6. clean after: the workpiece after the completion of quenching is transferred in cleaning machine 12 with conveyer belt 10, is equipped in cleaning machine 12 pair
Workpiece bubbling-buck spray chamber baking process room with together with passes sequentially through workpiece bubbling-buck spray, drying of cleaning machine 12
Process, workpiece stop the time of a cycle in each process room, and the equidistant movement of charging tray is by pushing away chain mechanism complete
At；
7. tempering: the workpiece after the completion of cleaning again is pushed to charging tray in tempering furnace 13 by pushing away chain mechanism, and push-down returns
It is equipped with 12 charging tray positions in stove 13, is divided into three-zone heating and control, the temperature in 3rd area can be followed successively by 160-200 DEG C, 165-200
℃,160-200℃；Tempering total time is 300-360min.
8. air-cooled: workpiece discharging pushes away chain mechanism release after completing tempering process, is placed on air-cooled 14, passes through cold wind
Machine carries out workpiece air-cooled；
9. discharging: the discharging platform for pushing away chain mechanism and workpiece being pushed into feeding web 1 after the completion of air-cooled, on air-cooled 14
On, discharging platform drops to the position with level at workpiece charging, and then operator gets off the workpiece transfer being heat-treated, and puts
It sets in storing area.
Wherein, one area's temperature of carburizing is 910-930 DEG C in heating carburizing furnace 3, and two area's temperature of carburizing is 910-925 DEG C, high
Warm diffusion region temperature is 890-900 DEG C, and total time is every rail 750-790min, and every rail refers to every row's pipeline herein, this is practical
There is double pipeline in novel；One area's carbon potential of carburizing is 1.1-1.2C%, and two area's carbon potential of carburizing is 1.05-1.15C%, High temperature diffusion
Area's carbon potential is 0.9-0.95C%.4 carbon potential of low temperature diffusion furnace is 0.75-0.85C%, and pressure quenches 5 carbon potential of holding furnace for 0.9-1.0C%.
The quenching oil temperature of Quenching press 8 is 40-60 DEG C, time 3.5-5min；Internal pressure ring compression: 35-40bar；External pressure
Ring compression: 40-45bar；Expanding device pressure: 10-15bar.
Above-described is only preferred embodiments of the present invention, it is noted that for those skilled in the art
For, under the premise of not departing from the utility model general idea, several changes and improvements can also be made, these also should be considered as
The protection scope of the utility model, these all will not influence the effect and patent practicability of the utility model implementation.
Claims (5)
1. bevel gear is heat-treated double continuous carbonization, pressure is quenched production line, including feeding web (1), feeding web (1) connection
Pre-oxidation furnace (2), it is characterised in that: the tail end connection of pre-oxidation furnace (2) has the heating carburizing furnace of double pipeline (32)
(3), the other end side of heating carburizing furnace (3) other end side connection low temperature diffusion furnace (4), low temperature diffusion furnace (4) is connected to pressure
It quenches holding furnace (5), presses another side connection oil-quenching tank (11) for holding furnace (5) of quenching, the another side of oil-quenching tank (11), which connects, to be passed
It send in the middle part of band (10), conveyer belt (10) tail portion connects cleaning machine (12), and cleaning machine (12) connects tempering furnace (13), tempering furnace (13)
It connects air-cooled (14), air-cooled (14) connection feeding web (1)；The lateral surface for pressing holding furnace (5) of quenching is equipped with discharging
Door, discharge door lower section undertake support plate (51), and the tail end of support plate (51) is equipped with the manipulator I (6) for pulling out workpiece, machine
The side of tool hand I (6) is equipped with the robots (7) of 360 ° of rotations of energy, and the lateral surface of robot (7) is equipped with Quenching press (8), machine
The side of the separate manipulator I (6) of people (7) is equipped with pallet recycling frame (9), and the medial surface that pallet recycles frame (9) is conveyer belt
(10) end；It is set in the oil-quenching tank (11) there are two oil groove, heating carburizing furnace (3) is interior to be followed successively by one area of carburizing, carburizing two
Area, High temperature diffusion area, one area of carburizing, 2nd area of carburizing, High temperature diffusion area, low temperature diffusion furnace (4) and pressure are quenched, and holding furnace (5) is interior to be distinguished
Oxygen probe (31) equipped with detection carbon potential, the oxygen probe (31) of a carbon potential detection are correspondingly connected with a carbon-potential control device.
2. bevel gear as described in claim 1 is heat-treated double continuous carbonization, presses production line of quenching, it is characterised in that: the machine
Device people (7) includes rotary base (71), connecting rod rotating arm (72) and manipulator II (73), connection connecting rod rotation on rotary base (71)
Pivoted arm (72), the head of connecting rod rotating arm (72) connect manipulator II (73), manipulator II (73) include workpiece clamping plate (75) and
Pallet clamping plate (76), pallet clamping plate (76) are located at the outside above workpiece clamping plate (75).
3. bevel gear as described in claim 1 is heat-treated double continuous carbonization, presses production line of quenching, it is characterised in that: described pre-
Oxidation furnace (2), heating carburizing furnace (3), low temperature diffusion furnace (4), pressure quench holding furnace (5) and oil-quenching tank (11) is push-down
, it is provided with and pushes away chain mechanism.
4. bevel gear as described in claim 1 is heat-treated double continuous carbonization, presses production line of quenching, it is characterised in that: the oxygen
The probe material of probe (31) is zirconium oxide.
5. bevel gear as described in claim 1 is heat-treated double continuous carbonization, presses production line of quenching, it is characterised in that: the oxygen
Probe (31) is five.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821655007.7U CN208917314U (en) | 2018-10-12 | 2018-10-12 | Bevel gear is heat-treated double continuous carbonization, presses production line of quenching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821655007.7U CN208917314U (en) | 2018-10-12 | 2018-10-12 | Bevel gear is heat-treated double continuous carbonization, presses production line of quenching |
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| Publication Number | Publication Date |
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| CN208917314U true CN208917314U (en) | 2019-05-31 |
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ID=66708981
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821655007.7U Active CN208917314U (en) | 2018-10-12 | 2018-10-12 | Bevel gear is heat-treated double continuous carbonization, presses production line of quenching |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109055944A (en) * | 2018-10-12 | 2018-12-21 | 郑州华威齿轮有限公司 | Bevel gear is heat-treated double continuous carbonization, pressure is quenched production line and its production technology |
-
2018
- 2018-10-12 CN CN201821655007.7U patent/CN208917314U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109055944A (en) * | 2018-10-12 | 2018-12-21 | 郑州华威齿轮有限公司 | Bevel gear is heat-treated double continuous carbonization, pressure is quenched production line and its production technology |
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