CN111850258A - Guide arm quenching cooling system - Google Patents
Guide arm quenching cooling system Download PDFInfo
- Publication number
- CN111850258A CN111850258A CN202010569849.6A CN202010569849A CN111850258A CN 111850258 A CN111850258 A CN 111850258A CN 202010569849 A CN202010569849 A CN 202010569849A CN 111850258 A CN111850258 A CN 111850258A
- Authority
- CN
- China
- Prior art keywords
- guide arm
- oil
- cooling
- quenching
- cooling system
- 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
-
- 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
- C21D1/667—Quenching devices for spray quenching
-
- 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
- C21D1/63—Quenching devices for bath quenching
-
- 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
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
-
- 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
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
Abstract
A guide arm quenching cooling system belongs to the field of guide arm heat treatment and comprises an oil groove and a conveying mechanism arranged in the oil groove and used for conveying a guide arm, wherein a forced cooling injection area and a slow cooling injection area are sequentially arranged in the oil groove, and the conveying mechanism conveys the guide arm to carry out quenching cooling through the forced cooling injection area and the slow cooling injection area sequentially; the intensive cooling spraying area and the slow cooling spraying area are arranged in the quenching bath, and the intensive cooling spraying area and the slow cooling spraying area are matched with each other, so that different cooling intensity is implemented on guide arms with different specifications and shapes, the uniform quenching structure of the whole workpiece is guaranteed, and the quality is reliable.
Description
Technical Field
The invention belongs to the field of guide arm heat treatment, and particularly relates to a guide arm quenching and cooling system.
Background
The guide arm is a guide mechanism in a suspension device of an automobile, plays a role of connecting between wheels and a frame, bears the weight of a small amount of carriage and load, and also bears impact load and torsional load caused by uneven road surface.
In the implementation process of the prior art, the heating parts can basically meet the related technical requirements of heating time and heating temperature, but the same quenching intensity is adopted in the quenching and cooling process of the guide arm at present, which may cause the following problems. For example, in the cooling process, due to insufficient quenching intensity at high temperature, the cooling speed is too slow, so that bainite structure transformation is caused, and the quenching metallographic structure is influenced; if the cooling speed of the martensite transformation area is too high at low temperature, and austenite is sheared into martensite, the structure volume is increased, the transformation speed is too high, and the generation of quenching cracks is caused; or the speed of the martensite transformation area is too low at low temperature, the temperature of the workpiece is too high after oil is produced, the workpiece directly enters a tempering furnace, the martensite transformation is insufficient (the surface is less than 90 percent, and the core is less than 80 percent), the quality of the quenching process is influenced, the whole heat treatment process is repaired or scrapped, and a large amount of waste is caused.
Disclosure of Invention
Aiming at the problems, the invention provides a new technical scheme to effectively implement quenching and cooling of the workpiece and achieve the aims of improving the production efficiency and the output quality of the product.
The technical scheme provided by the invention is as follows:
The utility model provides a guiding arm quenching cooling system, includes the oil groove and establishes the transport mechanism who is used for carrying the guiding arm in the oil groove be equipped with intensive cooling injection district and slow cooling injection district in proper order in the oil groove, transport mechanism carries the guiding arm to carry out quenching cooling through intensive cooling injection district, slow cooling injection district in proper order.
Furthermore, a first ejector and a second ejector are arranged in the strong cold injection area; the first ejector is arranged at the bottom of the oil groove, and the oil injection direction is vertical to the conveying direction of the guide arm; the second injector is installed at the oil groove inlet and injects oil along the conveying direction of the guide arm.
Furthermore, a third ejector is arranged in the slow cooling injection area, the third ejector is arranged on the side wall of the oil groove, and the oil injection direction is perpendicular to the conveying direction of the guide arm.
Further, the nozzles of the first ejector, the second ejector and the third ejector are all of honeycomb structures.
The oil inlet mechanism is internally provided with a positioning device for positioning the guide arm and a lifting device for sinking the guide arm into the oil groove, and the positioning device is fixed on the lifting device; the guide arm is placed on the conveying mechanism through the lifting device.
Furthermore, the lifting device comprises a driving motor, a trapezoidal screw rod, a beam block and an original point induction block, the trapezoidal screw rod is in transmission connection with an output shaft of the driving motor, the beam block is arranged on the trapezoidal screw rod, and the original point induction block is arranged at one end of the trapezoidal screw rod; the driving motor drives the trapezoidal screw rod to rotate, so that the beam block moves up and down on the trapezoidal screw rod.
Further, a convection stirring mechanism is arranged in the oil groove and is arranged in the slow cooling injection area; the convection stirring device comprises a motor and a propeller, and the motor drives the propeller to stir the quenching oil in the oil groove into turbulent flow.
The beneficial effects achieved by adopting the invention are as follows:
the intensive cooling spraying area and the slow cooling spraying area are arranged in the quenching bath, and the intensive cooling spraying area and the slow cooling spraying area are matched with each other, so that different cooling intensity is implemented on guide arms with different specifications and shapes, the uniform quenching structure of the whole workpiece is ensured, and the quality is reliable; simultaneously, through the mutually supporting in strong cold injection district and slow cold injection district, adjust the cooling intensity that strong cold injection district and slow cold injection district sprayed, shorten the cool time, promote production efficiency.
Detailed Description
The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
The embodiment provides a guide arm quenching and cooling system, which comprises an oil tank, wherein a guide arm is placed in the oil tank to carry out quenching and cooling operation; specifically, a conveying mechanism is arranged in the oil tank and is used for conveying the guide arm, so that the guide arm is conveyed from one end of the oil tank to the other end of the oil tank under the matching action of the conveying mechanism, and the quenching operation is completed.
In order to improve the quenching effect and ensure the uniformity and reliability of the whole quenching structure of a workpiece, a strong cooling injection area and a slow cooling injection area are arranged in an oil groove, the strong cooling injection area adopts high-speed large-flow injection, the slow cooling injection area adopts low-speed low-flow injection, when a conveying mechanism carries a guide arm to convey in the oil groove, the high-speed large-flow injection is carried out through the strong cooling injection area to realize the rapid cooling of the guide arm, and then the guide arm enters the slow cooling injection area to carry out low-speed low-flow injection, so that the buffer cooling of the guide arm is realized.
Specifically, an ejector is arranged in the strong cold injection area, wherein the ejector comprises a first ejector and a second ejector; the first injector is arranged at the bottom of the oil tank, the oil injection direction of the first injector is vertical to the conveying direction of the guide arm, and the injection direction of the first injector is upward, so that the bottom surface and two side surfaces of the guide arm can be subjected to large-scale injection cooling; the second injector is installed at the inlet of the oil tank and injects oil along the conveying direction of the guide arm, and it can be understood that the injection direction of the second injector is parallel to the conveying direction of the guide arm, so that when the guide arm enters the oil tank, the second injector starts to inject cooling oil, and the cooling oil makes parabolic motion to realize large-scale injection cooling of the upper surface and two side surfaces of the guide arm.
Preferably, the spraying speed of the first sprayer and the second sprayer is adjusted according to the shape and the thickness of the workpiece, and in the embodiment, the spraying speed ranges from 2 m/s to 5 m/s.
In the embodiment, a third ejector is arranged in the slow cooling injection area, the structure of the third ejector is the same as that of the first ejector and the second ejector, but the injection direction and the injection speed of the third ejector are different, and specifically, the third ejector is arranged on the side wall of the oil tank, and the oil injection direction is vertical to the conveying direction of the guide arm; it can be understood that the third ejectors are arranged on the two side walls of the oil groove and are started simultaneously, so that the cooling oil ejected by the third ejectors can cool the upper surface, the lower surface, the left surface and the right surface of the guide arm simultaneously, and the guide arm is cooled comprehensively.
In order to improve the spray cooling effect, the nozzles of the first sprayer, the second sprayer and the third sprayer are all of a dense honeycomb structure, and cooling oil is sprayed through honeycomb holes, so that the cooling oil is sprayed on the guide arm more uniformly.
In this embodiment, the guide arm is placed on the conveying mechanism through an oil inlet mechanism, specifically, the oil inlet mechanism is disposed on the oil tank, and a positioning device for positioning the guide arm and a lifting device for sinking the guide arm into the oil tank are disposed in the oil inlet mechanism; the positioning device is provided with a positioning table, the guide arm after being bent and formed is grabbed by the oil inlet manipulator and placed on the positioning table of the positioning device, and then the lifting device descends to enable the positioning device to descend simultaneously, which is equivalent to driving the guide arm to descend into an oil groove, so that the oil inlet operation of the guide arm is realized.
The lifting device in the embodiment comprises a driving motor, a trapezoidal screw rod, a beam block and an original point induction block, wherein the trapezoidal screw rod is in transmission connection with an output shaft of the driving motor, the beam block is arranged on the trapezoidal screw rod, the positioning device is fixed on the beam block, and the driving motor drives the trapezoidal screw rod to rotate so as to enable the positioning device fixed on the beam block to move up and down, so that the guide arm can move up and down finally; after the lifting device finishes the oil inlet operation, the guide arm can be directly placed on the conveying mechanism and then conveyed by the conveying mechanism.
Preferably, an origin induction block is arranged on the lifting device, and the origin induction device fixed on the origin induction block can ensure that the lifting device can move up and down within a certain range.
Preferably, a convection stirring mechanism is further arranged in the oil groove, and the convection stirring mechanism is arranged in the slow cooling injection area; the convection stirring device comprises a motor and a propeller, and the motor drives the propeller to stir the quenching oil in the oil groove into turbulent flow.
The stirring of cooling oil is realized through the mode that sets up the convection current mixer to guarantee at the cooling process to the guide arm, the equilibrium of cooling oil temperature.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a guiding arm quenching cooling system, includes the oil groove and establishes the transport mechanism who is used for carrying the guiding arm in the oil groove, its characterized in that be equipped with strong cold injection zone and slow cold injection zone in proper order in the oil groove, transport mechanism carries the guiding arm to carry out quenching cooling through strong cold injection zone, slow cold injection zone in proper order.
2. The guide arm quenching cooling system of claim 1, wherein a first injector and a second injector are arranged in the intensive cooling injection zone; the first ejector is arranged at the bottom of the oil groove, and the oil injection direction is vertical to the conveying direction of the guide arm; the second injector is installed at the oil groove inlet and injects oil along the conveying direction of the guide arm.
3. The guide arm quenching cooling system of claim 2, wherein a third injector is arranged in the slow cooling injection region, and the third injector is mounted on the side wall of the oil tank and the injection direction of the third injector is perpendicular to the conveying direction of the guide arm.
4. The guide arm quench cooling system of claim 3 wherein the nozzles of the first, second and third injectors are all of a honeycomb structure.
5. The guide arm quenching cooling system as claimed in claim 1, further comprising an oil inlet mechanism disposed on the oil bath, wherein a positioning device for positioning the guide arm and a lifting device for sinking the guide arm into the oil bath are disposed in the oil inlet mechanism, and the positioning device is fixed to the lifting device; the guide arm is placed on the conveying mechanism through the lifting device.
6. The guide arm quenching cooling system as claimed in claim 5, wherein the lifting device comprises a driving motor, a trapezoidal lead screw, a beam block and an origin sensing block, the trapezoidal lead screw is in transmission connection with an output shaft of the driving motor, the beam block is arranged on the trapezoidal lead screw, and the origin sensing block is arranged at one end of the trapezoidal lead screw; the driving motor drives the trapezoidal screw rod to rotate, so that the beam block moves up and down on the trapezoidal screw rod.
7. The guide arm quenching cooling system of claim 1, wherein a convection stirring mechanism is further arranged in the oil tank, and the convection stirring mechanism is arranged in the slow cooling injection area; the convection stirring device comprises a motor and a propeller, and the motor drives the propeller to stir the quenching oil in the oil groove into turbulent flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010569849.6A CN111850258A (en) | 2020-06-20 | 2020-06-20 | Guide arm quenching cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010569849.6A CN111850258A (en) | 2020-06-20 | 2020-06-20 | Guide arm quenching cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111850258A true CN111850258A (en) | 2020-10-30 |
Family
ID=72987927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010569849.6A Pending CN111850258A (en) | 2020-06-20 | 2020-06-20 | Guide arm quenching cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111850258A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115094212A (en) * | 2022-07-11 | 2022-09-23 | 东风汽车底盘系统有限公司 | Quenching line and quenching processing method of guide arm |
| CN115109913A (en) * | 2022-07-11 | 2022-09-27 | 东风汽车底盘系统有限公司 | Automatic heat treatment production line and production method of guide arm |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60190524A (en) * | 1984-03-09 | 1985-09-28 | Sumitomo Metal Ind Ltd | Method and device for hardening of steel pipe |
| CN202116602U (en) * | 2011-06-07 | 2012-01-18 | 襄阳丰正汽车配件制造有限公司 | Residual heat quenching cooling device |
| CN102378655A (en) * | 2009-03-30 | 2012-03-14 | 杰富意钢铁株式会社 | Cooling device for hot rolled steel sheet |
| CN204918681U (en) * | 2015-07-14 | 2015-12-30 | 江苏龙城精锻有限公司 | Guenching unit is sprayed in guipure quenching groove with adjustable |
| CN206521496U (en) * | 2016-10-21 | 2017-09-26 | 衡阳鸿宇机械制造有限公司 | It is heat-treated economic benefits and social benefits quenching unit |
| CN109777941A (en) * | 2019-03-04 | 2019-05-21 | 沈阳建臻钢球有限公司 | A kind of hot rolling, hot forging steel ball waste heat quenching device and quenching technical |
| JPWO2019087805A1 (en) * | 2017-10-31 | 2019-11-14 | Ｊｆｅスチール株式会社 | Manufacturing equipment and manufacturing method for thick steel plate |
-
2020
- 2020-06-20 CN CN202010569849.6A patent/CN111850258A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60190524A (en) * | 1984-03-09 | 1985-09-28 | Sumitomo Metal Ind Ltd | Method and device for hardening of steel pipe |
| CN102378655A (en) * | 2009-03-30 | 2012-03-14 | 杰富意钢铁株式会社 | Cooling device for hot rolled steel sheet |
| CN202116602U (en) * | 2011-06-07 | 2012-01-18 | 襄阳丰正汽车配件制造有限公司 | Residual heat quenching cooling device |
| CN204918681U (en) * | 2015-07-14 | 2015-12-30 | 江苏龙城精锻有限公司 | Guenching unit is sprayed in guipure quenching groove with adjustable |
| CN206521496U (en) * | 2016-10-21 | 2017-09-26 | 衡阳鸿宇机械制造有限公司 | It is heat-treated economic benefits and social benefits quenching unit |
| JPWO2019087805A1 (en) * | 2017-10-31 | 2019-11-14 | Ｊｆｅスチール株式会社 | Manufacturing equipment and manufacturing method for thick steel plate |
| CN109777941A (en) * | 2019-03-04 | 2019-05-21 | 沈阳建臻钢球有限公司 | A kind of hot rolling, hot forging steel ball waste heat quenching device and quenching technical |
Non-Patent Citations (1)
| Title |
|---|
| 刘白 等: "《数控加工项目实训教程》", 31 July 2014, 西南交通大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115094212A (en) * | 2022-07-11 | 2022-09-23 | 东风汽车底盘系统有限公司 | Quenching line and quenching processing method of guide arm |
| CN115109913A (en) * | 2022-07-11 | 2022-09-27 | 东风汽车底盘系统有限公司 | Automatic heat treatment production line and production method of guide arm |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201030 |
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| RJ01 | Rejection of invention patent application after publication |