CN209636286U - High-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment - Google Patents
High-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment Download PDFInfo
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- CN209636286U CN209636286U CN201822214200.3U CN201822214200U CN209636286U CN 209636286 U CN209636286 U CN 209636286U CN 201822214200 U CN201822214200 U CN 201822214200U CN 209636286 U CN209636286 U CN 209636286U
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Abstract
This is practical in order to realize that application technology problem of the high-carbon chromium steel material in cam bit devises high-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment, it is produced using a whole set of automated production equipment, it wherein in order successively include forging equipment, turning equipment, mult-purpose chamber furnace, non-destructive detecting device and equipment for grinding, the mult-purpose chamber furnace includes at least heating quenching furnace, cleaning equipment and tempering furnace, the cleaning equipment at least has there are two washing outlet, one of washing outlet is connect with the import of the heating quenching furnace, another washing outlet is connect with the tempering furnace, the outlet of the heating quenching furnace is connect with the import of the cleaning equipment, the equipment has a whole set of complete process control system, automation condition is high, technical maturity, mass production supply can be stablized, using extensive, product adds Thermal quenching process device automatically controls, and has curve and warning device and online record in real time.
Description
Technical field
The utility model relates to cam bit production technical field more particularly to high-carbon chromium steel passenger vehicle engine cam bit are whole
Body quenching apparatus.
Background technique
The entirety of cam bit quench thoroughly heat treatment process generally use mult-purpose chamber furnace heating product, heating temperature use Ovshinsky
Body temperature carries out integral quenching cooling frequently with oil, then carries out returning for condition of different temperatures according to the technical requirements of product
Fire processing.
In industry, current main passenger vehicle engine cam blank, processing method mainly has cam bit and camshaft one
The single-casting or forging of body, the types such as the assembled forging and pipe fitting of steel pipe and cam bit separation.And in terms of cam block of material
Consider that the service performance of product requires mainly high-carbon-chromium bearing steel, the materials such as carburizing steel, the processing method of heat treatment mainly to have
Surface induction hardening, the methods of carburizing heat treatment, the product surface hardness using the processing of these methods is high, and centre hardness is low, from
And reach surface high wearability and intensity, the good service performance requirement of center toughness.And use high-carbon-chromium bearing steel material
Whole marquench heat-treating methods of quenching thoroughly are using less, by experimental verification, quenched thoroughly geneva using high-carbon-chromium bearing steel
The product of body integral quenching heat treatment method processing equally can satisfy the service performance requirement of product, while process is simpler
It is easy to control and operate, high production efficiency.This is a kind of completely new process.
Meanwhile high-carbon chromium steel material smelting process is mature, steel mill can be with hair with stable mass production, technical level
It is similar up to national level.The forging of this material, mach processing performance are good, are widely used in industrial circle, whole saturating
The heat treatment method process control quenched is easy, reliably, stable mass production may be implemented, industrial application has good prospects.
Utility model content
The utility model is in order to realize that the above technical problem devises high-carbon chromium steel passenger vehicle engine cam bit integral quenching
Fire process includes the following steps in order,
Forging, goes out cam bit profile for the direct forging molding of the bar of high-carbon-chromium bearing steel, forges between ring portion and peach tip
Multiple diameters are the blind hole of 1.0mm ~ 2.0mm out, and blind hole depth is 0.5mm ~ 3mm；
As a result, cam bit center have a ring portion, the non-widest position of cam bit between ring portion and peach tip, herein in
It is 1.0mm ~ 2.0mm blind hole that meta position, which installs multiple diameters, easy to accomplish also to facilitate integrated forging molding, forms blind hole group, and
And wherein at least one blind hole is arranged far from blind hole group, can so prevent cam bit in use process from now on due to heat
It is integrally destroyed caused by swollen shrinkage, blind hole is hole of expanding with heat and contract with cold, and the blind hole for opening up 0.5mm ~ 3mm depth herein can either
The protecting effect that expands with heat and contract with cold is generated, compared with can also guarantee the through hardening in heat treatment of entire cam bit for through-hole as far as possible
Complete, the damage that generates when preventing heat treatment that improves the intensity of cam bit, increase the successful of heat treatment, quenched after quenching
Fiery martensite obtains the tempered martensite of good combination property after tempering；
Turning, the end face of turning bars；
Heat treatment heats bar up to austenitizing in mult-purpose chamber furnace, and heating temperature is 830 DEG C ~ 850 DEG C, heat preservation
60 to 90 minutes, then oil quenching, entered cleaning machine and cleans, tempering furnace is entered after cleaning and is tempered, carries out ball blast after tempering after coming out of the stove
Processing；
Bar is ground to the precision of needs by fine ginding；
Assemble finished product.
As the preferred of the utility model, handled in the heating process of the heat treatment step using gas shield, gas
Using nitrogen, methanol as basic atmosphere, propane carries out carbon-potential control as enriched gas for protection.
Product oxidation and decarbonization and carburetting are prevented as a result,.
As the preferred of the utility model, the forging step forges direct forging molding using high speed.
As the preferred of the utility model, before the heat treatment step, bar is manually placed in charging tray, successively folded
It is placed on tooling chassis, cleaning, drying before then being carried out in cleaning machine, returns after cleaning machine carries out and clean after heat treatment.
As a result, before cleaning mainly say that clast etc. of the bar after roughing washes, and carry out cleaning rust staining,
Grease stain, dirt, cutting fluid and grinding agent etc. do not influence medium and atmosphere to guarantee that the heating and cooling of bar will not be hindered
Purity etc. influences the defect etc. of thermal treatment quality, heat to prevent uneven, nonuniform organization of quenching soft spot, hardened layer etc.
Cleaning is after processing in order to remove Residual oil, salt slag and carbon black etc., cleaning and antirust ability after guaranteeing part heat treatment etc., here
It is cleaned before heat treatment in cleaning machine, rotates back into same cleaning machine and clean again after heat treatment, production can either be simplified and set
It is standby, and liquid rinse will necessarily there are the impurity such as the preceding remaining clast of cleaning in a liquid, in rear cleaning process, the liquid
Foreign particle in body can rub heat treatment after surface, thus increase friction enhancing cleaning effect, be convenient for subsequent fine
The processing of mill, it is the prior art that the various devices during which designed, which are the existing equipment that can be bought on the market,.
As the preferred of the utility model, the process equipment of bar is automatically controlled, be provided with curve and warning device and
Online record in real time guarantees that the surface-carburized layer of final products is less than or equal to 0.2mm, prevents crackle.
It is loaded accordingly, for product, the reasonable control of heating and the type of cooling etc. avoids product bump injury, cold
Generation the problems such as insufficient and decarburization, crackle.
As the preferred of the utility model, tempering temperature selects suitable return according to the final hardness requirement of cam flake products
Fiery temperature, general temperature select 250 DEG C ~ 270 DEG C.
As the preferred of the utility model, the heat treatment step further includes non-destructive testing, that is, uses eddy current inspection equipment
100% flaw detection of automatic on-line processing, further includes rust prevention packaging, and the cam bit of finished product is carried out antirust treatment and is then assembled.
Non-destructive testing can also be carried out non-destructive testing by devices such as ray, infiltration, magnetic powder and ultrasounds as a result, above-mentioned
Device is the prior art.
As the preferred of the utility model, high-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment, using the whole series
Automated production equipment is produced, wherein in order successively including forging equipment, turning equipment, mult-purpose chamber furnace, lossless inspection
Measurement equipment and equipment for grinding.
As the preferred of the utility model, the mult-purpose chamber furnace includes at least heating quenching furnace, cleaning equipment and returns
Stove, the cleaning equipment at least have the import of one of washing outlet and the heating quenching furnace there are two washing outlet
Connection, another washing outlet are connect with the tempering furnace, the outlet and the import of the cleaning equipment of the heating quenching furnace
Connection.
As the preferred of the utility model, automatically controlled in the mult-purpose chamber furnace by processes such as sensors, and
It is provided with heat tape protective atmosphere device.
The control conditions such as temperature, time and carbon potential are monitored by sensor automatically as a result,.
As the preferred of the utility model, the heat tape protective atmosphere device includes using nitrogen, methanol as base
Plinth atmosphere, propane is as enriched gas.
Thus, it is possible to carry out carbon-potential control.
As the preferred of the utility model, the heating quenching furnace includes that heating room and setting are advanced in the heating room
The quenching tank in direction, the quenching tank outlet are connected with the cleaning equipment.
As the preferred of the utility model, the cleaning equipment includes two scavenger circuits, and each scavenger circuit includes one
A washing outlet and import is cleaned together, a scavenger circuit is connected with the turning equipment and the heating quenching furnace, another
A scavenger circuit is connected with the heating quenching furnace and the tempering furnace.
The utility model has the following beneficial effects:
1, equipment aspect: using mult-purpose chamber furnace, and equipment has a whole set of complete process control system, automates condition
It is high；
2, process aspect: full through hardening marquench, it is domestic at present to only have small passenger car small displacement engine to use this
Kind heat-treatment technology method handles product cam bit.
3, in terms of material: high-carbon-chromium bearing steel, technical maturity can stablize mass production supply, using extensive.
4, in terms of process control: product heating quenching process device automatically controls, and has curve and warning device and online real
Shi Jilu.Product surface decarburized layer control≤0.2mm, has avoided crackle.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model complete equipment；
Fig. 2 is the structural schematic diagram of the utility model mult-purpose chamber furnace；
Fig. 3 is the cam bit structural schematic diagram of the utility model；
Fig. 4 is the utility model heat treatment cycle curve schematic diagram；
Fig. 5 is the schematic cross-section of the utility model cam bit；
Fig. 6 is the structural schematic diagram of the utility model heating quenching furnace；
In figure, 1- forging equipment；2- turning equipment；3- mult-purpose chamber furnace；31- heating quenching furnace；311- heats room；312-
Quenching tank；32- cleaning equipment；33- tempering furnace；4- non-destructive detecting device；5- equipment for grinding.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
High-carbon chromium steel passenger vehicle engine cam bit integral quenching technique, includes the following steps in order,
Forging, goes out cam bit profile for the direct forging molding of the bar of high-carbon-chromium bearing steel, forges between ring portion and peach tip
Multiple diameters are the blind hole of 1.0mm ~ 2.0mm out, and blind hole depth is 0.5mm ~ 3mm, and cam bit center has a ring portion, ring portion
The non-widest position of cam bit between peach tip, middle position herein are arranged multiple blind holes and form blind hole group, and wherein extremely
A rare blind hole is arranged far from blind hole group, can so prevent cam bit in use process from now on due to expanding with heat and contract with cold and
Caused whole destruction, blind hole is hole of expanding with heat and contract with cold, and the blind hole for opening up 0.5mm ~ 3mm herein can either be generated and be expanded with heat and contract with cold
Protecting effect, compared with can also guarantee as far as possible for through-hole entire cam bit heat treatment when through hardening it is complete, improve
The intensity of cam bit prevents the damage generated when heat treatment, increases the successful of heat treatment, and quenched martensite warp is obtained after quenching
The tempered martensite of good combination property is obtained after crossing tempering；
Turning, the end face of turning bars；
Heat treatment heats bar up to austenitizing in mult-purpose chamber furnace, and heating temperature is 830 DEG C ~ 850 DEG C, heat preservation
60 to 90 minutes, then oil quenching, entered cleaning machine and cleans, tempering furnace is entered after cleaning and is tempered, carries out ball blast after tempering after coming out of the stove
Processing；
Bar is ground to the precision of needs by fine ginding；
Assemble finished product.
As shown in Fig. 1 to 6, in the present embodiment, handled in the heating process of the heat treatment step using gas shield, gas
Body protection is using nitrogen, methanol as basic atmosphere, and propane is used as enriched gas, progress carbon-potential control, prevent product oxidation and decarbonization with
Carburetting, the forging step forge direct forging molding using high speed, and before the heat treatment step, bar is manually placed in material
It in disk, successively overlays on tooling chassis, cleaning, drying before then carrying out in cleaning machine returns cleaning machine after heat treatment
It is cleaned after progress, preceding cleaning mainly says that clast etc. of the bar after roughing washes, and carries out cleaning rust staining, oil
Stain, dirt, cutting fluid and grinding agent etc. do not influence the pure of medium and atmosphere to guarantee that the heating and cooling of bar will not be hindered
Degree etc. influences the defect etc. of thermal treatment quality to prevent uneven, nonuniform organization of quenching soft spot, hardened layer etc., at heat
Cleaning is after reason in order to remove Residual oil, salt slag and carbon black etc., and cleaning and antirust ability after guaranteeing part heat treatment etc. are hot here
It is cleaned before processing in cleaning machine, rotates back into same cleaning machine and clean again after heat treatment, production equipment can either be simplified,
And liquid rinse will necessarily there are the impurity such as the preceding remaining clast of cleaning in a liquid, in rear cleaning process, the liquid
In foreign particle can rub heat treatment after surface, thus increase friction enhancing cleaning effect, be convenient for subsequent fine grinding
Processing, the various devices during which designed be the existing equipment that can be bought on the market are the prior art, the processing of bar
Equipment automatically controls, and is provided with curve and warning device and online record in real time, guarantees that the surface-carburized layer of final products is small
In or equal to 0.2mm, crackle being prevented, product being loaded, the reasonable control of heating and the type of cooling etc. avoids
The generation of the problems such as product bump injury, cooling insufficient and decarburization, crackle, tempering temperature are wanted according to the final hardness of cam flake products
It asks and selects suitable tempering temperature, general temperature selects 250 DEG C ~ 270 DEG C, and the heat treatment step further includes non-destructive testing, i.e.,
It is handled using 100% flaw detection of eddy current inspection equipment automatic on-line, further includes rust prevention packaging, the cam bit of finished product is carried out at antirust
It manages and then is assembled, non-destructive testing can also be carried out non-destructive testing by devices such as ray, infiltration, magnetic powder and ultrasounds, on
Stating device is the prior art.
In the present embodiment, high-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment, using a whole set of automated production
Equipment is produced, wherein in order successively include forging equipment, turning equipment, mult-purpose chamber furnace, non-destructive detecting device and
Equipment for grinding, the mult-purpose chamber furnace include at least heating quenching furnace, cleaning equipment and tempering furnace, and the cleaning equipment is at least
There are two washing outlet, one of washing outlet is connect tool with the import of the heating quenching furnace, another washing outlet and
The tempering furnace connection, the outlet of the heating quenching furnace are connect with the import of the cleaning equipment, the mult-purpose chamber furnace mistake
Journey automatically controls, and is provided with heat tape protective atmosphere device wherein, monitored automatically by sensor temperature, the time with
And the control conditions such as carbon potential, the heat tape protective atmosphere device include being made using nitrogen, methanol as basic atmosphere, propane
For enriched gas, carbon-potential control can be carried out.
In the present embodiment, high-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment, using a whole set of automated production
Equipment is produced, wherein in order successively including forging equipment 1, turning equipment 2, mult-purpose chamber furnace 3, non-destructive detecting device 4
And equipment for grinding 5, the mult-purpose chamber furnace 3 includes at least heating quenching furnace 31, cleaning equipment 32 and tempering furnace 33, described
Cleaning equipment 32 at least has there are two washing outlet, and one of washing outlet is connect with the import of the heating quenching furnace 31,
Another washing outlet is connect with the tempering furnace 33, the outlet and the import of the cleaning equipment 32 of the heating quenching furnace 31
Connection, the mult-purpose chamber furnace 3 is interior to be automatically controlled by processes such as sensors, and is provided with heat tape protection gas wherein
Atmosphere device monitors the control conditions such as temperature, time and carbon potential, the heat tape protective atmosphere device by sensor automatically
Including using nitrogen, methanol, as basic atmosphere, propane can carry out carbon-potential control, the heating quenching furnace as enriched gas
31 include heating room 311 and the quenching tank 312 that heating 311 direction of advance of room is arranged in, and the outlet of quenching tank 312 connects
It is connected to the cleaning equipment 32, the non-destructive detecting device 4 is handled including 100% flaw detection of eddy current inspection equipment automatic on-line, described
Cleaning equipment 32 includes two scavenger circuits, and each scavenger circuit includes a washing outlet and cleans import together, and one clear
It washes circuit and is connected with the turning equipment 2 and the heating quenching furnace 31, another scavenger circuit is connected with the heating quenching
Furnace 31 and the tempering furnace.
Forging equipment 1, turning equipment 2 designed by this patent, mult-purpose chamber furnace 3, non-destructive detecting device 4, equipment for grinding 5,
Heating quenching furnace 31, cleaning equipment 32, tempering furnace 33 and control mode are existing equipment and control equipment on the market,
For the prior art.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical new to this
The conception and scope of type is defined.Without departing from the design concept of the present utility model, ordinary people in the field is to this
The all variations and modifications that the technical solution of utility model is made, should fall within the protection scope of the present utility model, this is practical
Novel claimed technology contents, are all described in the claims.
Claims (7)
1. high-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment, it is characterised in that: set using a whole set of automated production
It is standby to be produced, wherein successively being set in order including forging equipment (1), turning equipment (2), mult-purpose chamber furnace (3), non-destructive testing
Standby (4) and equipment for grinding (5).
2. high-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment according to claim 1, it is characterised in that: institute
Mult-purpose chamber furnace (3) are stated including at least heating quenching furnace (31), cleaning equipment (32) and tempering furnace (33), the cleaning equipment
(32) at least there are two washing outlets for tool, and one of washing outlet is connect with the import of the heating quenching furnace (31), another
A washing outlet is connect with the tempering furnace (33), the outlet of the heating quenching furnace (31) and the cleaning equipment (32) into
Mouth connection.
3. high-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment according to claim 1 or 2, feature exist
In: it is automatically controlled in the mult-purpose chamber furnace (3) by processes such as sensors, and is provided with heat tape protection gas wherein
Atmosphere device.
4. high-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment according to claim 3, it is characterised in that: institute
Stating heat tape protective atmosphere device includes using nitrogen, methanol as basic atmosphere, and propane is as enriched gas.
5. high-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment according to claim 2, it is characterised in that: institute
Stating heating quenching furnace (31) includes the quenching tank of heating room (311) and setting in described heating room (311) direction of advance
(312), quenching tank (312) outlet is connected with the cleaning equipment (32).
6. high-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment according to claim 1, it is characterised in that: institute
Stating non-destructive detecting device (4) includes 100% flaw detection of eddy current inspection equipment automatic on-line processing.
7. high-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment according to claim 2, it is characterised in that: institute
Stating cleaning equipment (32) includes two scavenger circuits, and each scavenger circuit is including a washing outlet and cleans import together, and one
A scavenger circuit is connected with the turning equipment (2) and the heating quenching furnace (31), another scavenger circuit is connected with described
Heating quenching furnace (31) and the tempering furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822214200.3U CN209636286U (en) | 2018-12-27 | 2018-12-27 | High-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822214200.3U CN209636286U (en) | 2018-12-27 | 2018-12-27 | High-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment |
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| Publication Number | Publication Date |
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| CN209636286U true CN209636286U (en) | 2019-11-15 |
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| CN201822214200.3U Active CN209636286U (en) | 2018-12-27 | 2018-12-27 | High-carbon chromium steel passenger vehicle engine cam bit integral quenching equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109971937A (en) * | 2018-12-27 | 2019-07-05 | 浙江辛子精工机械股份有限公司 | High-carbon chromium steel passenger vehicle engine cam bit integral quenching technique and its equipment |
-
2018
- 2018-12-27 CN CN201822214200.3U patent/CN209636286U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109971937A (en) * | 2018-12-27 | 2019-07-05 | 浙江辛子精工机械股份有限公司 | High-carbon chromium steel passenger vehicle engine cam bit integral quenching technique and its equipment |
| CN109971937B (en) * | 2018-12-27 | 2024-01-23 | 浙江辛子精工机械有限公司 | Integral quenching process and equipment for high-carbon chromium steel passenger car engine cam plate |
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Address after: No.298, Fangjiashan Road, Huzhou Economic and Technological Development Zone, Huzhou City, Zhejiang Province, 313000 Patentee after: Zhejiang Xinzi Precision Machinery Co.,Ltd. Patentee after: ZHEJIANG WEISHANG MACHINERY Co.,Ltd. Address before: No.298, Fangjiashan Road, Huzhou Economic and Technological Development Zone, Huzhou City, Zhejiang Province, 313000 Patentee before: ZHEJIANG 8+1 PRECISION MACHINERY Co.,Ltd. Patentee before: ZHEJIANG WEISHANG MACHINERY Co.,Ltd. |