CN102294423B - Cold-forging-warm-forging numerically-controlled forming method for forged and pressed component - Google Patents
Cold-forging-warm-forging numerically-controlled forming method for forged and pressed component Download PDFInfo
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- CN102294423B CN102294423B CN 201110244862 CN201110244862A CN102294423B CN 102294423 B CN102294423 B CN 102294423B CN 201110244862 CN201110244862 CN 201110244862 CN 201110244862 A CN201110244862 A CN 201110244862A CN 102294423 B CN102294423 B CN 102294423B
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Abstract
The invention provides a cold-forging-warm-forging numerically-controlled forming method for a forged and pressed component, which adopts the following steps: firstly, determining the numerical value of the integrative rigidity of a screw press and moulds, which are used for cold forging and warm forging; in steps, (1), installing a tonnage instrument; (2) inputting the angular speed omega c of a motor and the rotary inertia J of the screw press; (3) controlling the movement of the motor and executing striking; and (4) calculating the integrative rigidity values C1 and Cm of the screw press and the moulds for cold forging and warm forging by a formula according to a pressure value F displayed by the tonnage instrument; secondly, placing between the moulds of the screw press at the working procedure 1, inputting operational data Ed1 and Fd1 and calculating the rotating speed omega 1 of the motor required for cold-state forging and pressing so as to control the movement of the motor for executing numerically-controlled forming; and thirdly, heating the cold-state forged and pressed component to 700 to 800 DEG C, placing between the moulds of the screw press at the working procedure 3, inputting operational data Edm and Fdm and calculating the value of the rotating speed omega m of the motor required for thermal-state forging and pressing so as to control the movement of the motor for executing the numerically-controlled forming. By processing the forged and pressed component through adopting the method, the forged and pressed component has high accuracy, energy is saved, and the efficiency is high.
Description
Technical field
The invention provides a kind of cold forging-warm forging numerical control formation method of press forging, belong to the mechanical industry technical field.
Background technology
Existing press forging manufacturing process is by cold forging, warm forging, forge hot.Hot forging temperature is more than recrystallization temperature, and the warm forging temperature is below the recrystallization temperature, more than the recovery temperature, and the cold forging temperature is below recovery temperature.
The technology that existing technology has cold forging, warm forging, forge hot to be formed separately also has the technology of first warm forging-back cold forging or first forge hot-back cold forging combined shaping.
The patent No. is 00112445.5 patent of invention, invented a kind of process of making blank of inner spider for constant-speed cardan of automobile, it is characterized in that adopting cold-Wen precision forging method, the bar forging stock carries out cold extrusion cold forging preform at cold extrusion press, the problem that this method exists is need be blank peeling base, after sending the phospholeum production line to carry out the phospholeum processing, also need cold extrusion die to carry out the cold extrusion preform.
The patent No. is 92111700.0 patent of invention, has invented a kind of interior wheel manufacture method of truck drive shaft CV joint, and die-cut rod iron base material is to obtain the material of preliminary dimension earlier; Again material is seated in press, so that the material punch process is become the embryo material; The problem that this method exists is that embryo material deflection is less.
There is the defective that power can numerical control in above-mentioned process using crank press.
Summary of the invention
The fly press that provides a kind of first cold-forging forming, heating again, back warm forging the to be shaped cold forging-warm forging numerical control formation method of press forging is provided at above-mentioned existing problems.Its technical scheme is:
A kind of cold forging of press forging-warm forging numerical control formation method is characterized in that adopting following steps:
Measure at first respectively and be used for cold forging, the fly press of warm forging and the numerical value of mould integral stiffness, wherein operation one is used for cold forging, be provided with fly press and mould and carry out cold forging, operation two is used for heating, and operation three is used for warm forging, is provided with fly press and mould and carries out warm forging, concrete steps are: 1. on operation one, the tonnage instrument is installed on the fuselage of fly press, mould is installed on the fly press, input fly press rotary inertia J
lWith motor angular velocity ω c; The control motor action, to be checked when measuring the motor angular velocity ω c that the motor angular velocity value equals to import, control assembly control motor is at the uniform velocity implemented to hit subsequently, and the tonnage instrument shows force value F
lBy formula
Calculate the integral stiffness numerical value C of fly press and mould
l2. on operation three, repeat the step of operation one, the tonnage instrument is installed on the fuselage of fly press, mould is installed on the fly press, input fly press rotary inertia J
mWith motor angular velocity ω c; The control motor action, to be checked when measuring the motor angular velocity ω c that the motor angular velocity value equals to import, control assembly control motor is at the uniform velocity implemented to hit subsequently, and the tonnage instrument shows force value F
mBy formula
Calculate the integral stiffness numerical value C of fly press and mould
m
Secondly, implement numerical control formation, concrete steps are:, the cold conditions blank is positioned between the mould of fly press input service data C 1. in operation one
l, E
Dl, F
Dl, control assembly is according to formula
Calculate the required motor speed ω of cold conditions forging and pressing
lValue, and then control motor action equals this press forging cold conditions required motor speed ω that is shaped when detecting motor speed
lThe time, control motor at the uniform velocity, slide block down is implemented to hit, obtains by the cold conditions press forging after the technological parameter shaping, after the strike end, the motor counter-rotating, the slide block backhaul, when reaching top dead centre, the deceleration of control assembly control motor, brake are braked; 2. in operation two, the cold conditions press forging is heated to 700-800 ℃, becomes warm attitude workpiece; 3. in operation three, repeat the step of operation one, warm attitude workpiece is positioned between the mould of fly press, input service data C
m, E
Dm, F
Dm, control assembly is according to formula
Calculate the required motor speed ω of warm attitude forging and pressing
mValue, and then control motor action equals the required motor speed ω of this press forging temperature attitude shaping when detecting the motor speed value
mThe time, control motor at the uniform velocity, slide block down is implemented to hit, obtain by the warm attitude press forging after the technological parameter shaping, after strike finishes, motor counter-rotating, slide block backhaul, when reaching top dead centre, control assembly control motor slows down, the brake braking, finishes a working cycles;
In the above-mentioned formula: ω c is motor angular velocity, recommends value 3 π; J
lFor being used for the fly press rotary inertia of cold forging, C
lBe the fly press that is used for cold forging and the integral stiffness of mould, F
DlBe the resistance of deformation of cold conditions workpiece, E
DlBe the work of deformation of cold conditions workpiece, J
mFor being used for the fly press rotary inertia of warm forging, C
mBe the fly press that is used for warm forging and the integral stiffness of mould, F
DmBe the resistance of deformation of warm attitude workpiece, E
DmWork of deformation for warm attitude workpiece.
The cold forging of described press forging-warm forging numerical control formation method, fly press comprise motor, control assembly, transmission mechanism and be installed in operating mechanism on the fuselage, and wherein control assembly is connected with motor, and motor output shaft connects operating mechanism by transmission mechanism.
The cold forging of described press forging-warm forging numerical control formation method, control assembly comprises electric machine controller, brake, angular displacement sensor, Programmable Logic Controller and touch-screen, wherein brake and angular displacement sensor are installed on the output shaft of motor, the input of the output termination motor of electric machine controller, the input of electric machine controller connects the output of angular displacement sensor, Programmable Logic Controller and touch-screen respectively, the control end of the output termination brake of Programmable Logic Controller, the input of Programmable Logic Controller connects touch-screen.
The cold forging of described press forging-warm forging numerical control formation method, transmission mechanism refers to belt transmission and gear drive, wherein belt transmission comprises driving pulley, driving-belt and driven pulley, gear drive comprises gear shaft and driven gear, driving pulley is fixedly mounted on the output shaft of motor, driven pulley is fixedly mounted on the gear shaft, and driven gear is fixedly mounted in the operating mechanism.
The cold forging of described press forging-warm forging numerical control formation method, operating mechanism comprises screw rod, top nut, lower nut and slide block, and wherein the upper end of screw rod connects transmission mechanism, and the screw rod middle part connects fuselage by top nut, and the screw rod bottom connects slide block by lower nut.
The cold forging of described press forging-warm forging numerical control formation method, mould comprises upper die and lower die; Motor adopts switched reluctance machines or reversible electric machine; Angular displacement sensor can adopt rotary transformer or Hall element, and brake adopts disk brake.
Described blank, workpiece, press forging are respectively the different titles of same object before distortion, after the distortion neutralization distortion.
The present invention compared with prior art, its advantage is:
1, the present invention adopts fly press numerical control speed to be shaped, and the forming parameter of press forging is accurately controlled by the input data, processes press forging in this way, and press forging precision height, allowance are little, efficient energy-saving.Belong to high-quality, efficient, energy-conservation, labour-saving Plastic Forming new technology, adapt to the direction of sustainable development, can satisfy the requirements at the higher level that Precision Forming Technology is proposed, realize the objective of the struggle of industrial quarters " the clean shaping ".
2, the present invention can be used for forging and the extrusion molding of various metal forging spares.
Description of drawings
Fig. 1 is the structural representation of the fly press embodiment that the present invention relates to.
Among the figure: 1, electric machine controller 2, brake 3, angular displacement sensor 4, motor 5, driving pulley 6, driving-belt 7, driven pulley 8, gear shaft 9, driven gear 10, top nut 11, screw rod 12, lower nut 13, slide block 14, patrix 15, tonnage instrument 16, counterdie 17, backing plate 18, fuselage 19, Programmable Logic Controller 20, touch-screen 21, workpiece
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing: fly press comprises motor 4, control assembly, transmission mechanism and is installed in operating mechanism on the fuselage 18, wherein:
Control assembly comprises electric machine controller 1, brake 2, angular displacement sensor 3, Programmable Logic Controller 19 and touch-screen 20, wherein brake 2 and angular displacement sensor 3 are installed on the output shaft of motor 4, the input of the output termination motor 4 of electric machine controller 1, the input of electric machine controller 1 connects the output of angular displacement sensor 3, Programmable Logic Controller 19 and touch-screen 20 respectively, the control end of the output termination brake 2 of Programmable Logic Controller 19, the input of Programmable Logic Controller 19 connects touch-screen 20.
Transmission mechanism refers to belt transmission and gear drive, wherein belt transmission comprises driving pulley 5, driving-belt 6 and driven pulley 7, gear drive comprises gear shaft 8 and driven gear 9, driving pulley 5 is fixedly mounted on the output shaft of motor 4, driven pulley 7 is fixedly mounted on the gear shaft 8, and driven gear 9 is fixedly mounted in the operating mechanism.
Operating mechanism comprises screw rod 11, top nut 10, lower nut 12 and slide block 13, and wherein the upper end of screw rod 11 connects transmission mechanism, and screw rod 11 middle parts connect fuselage 18 by top nut 10, and screw rod 11 bottoms connect slide block 13 by lower nut 12; Module comprises patrix 14 and counterdie 16.
Among the embodiment, operation one is used for cold forging, is provided with fly press and mould and carries out cold forging, and operation two is used for heating, and operation three is used for warm forging, is provided with fly press and mould and carries out warm forging, and the fly press rotary inertia of operation one, operation three is respectively J
l=100kgm
2, J
m=110kgm
2, motor angular velocity ω c is 10s
-1, the resistance of deformation F of cold conditions workpiece 21
DlBe 5 * 10
6N, work of deformation E
DlBe 10 * 10
3J, the resistance of deformation F of warm attitude workpiece 21
DmBe 6 * 10
6N, work of deformation E
DmBe 11 * 10
3J, detailed process is:
Measure at first respectively and be used for cold forging, the fly press of warm forging and the numerical value of mould integral stiffness, wherein operation one is used for cold forging, be provided with fly press and mould and carry out cold forging, operation two is used for heating, and operation three is used for warm forging, is provided with fly press and mould and carries out warm forging, concrete steps are: 1. on operation one, tonnage instrument 15 is installed on the fuselage 18 of fly press, mould is installed on the fly press, input fly press rotary inertia J
lWith motor angular velocity ω c, be respectively 100kgm
2And 10s
-1The action of control motor 4, to be checked when measuring the motor angular velocity ω c that the motor angular velocity value equals to import, electric machine controller 1 control motor 4 is at the uniform velocity implemented to hit subsequently, and tonnage instrument 15 shows force value F
lBe 4 * 10
6N; By formula
Calculate the integral stiffness numerical value C of fly press and mould
lBe 1.6 * 10
9 Nm
-12. on operation three, repeat the step of operation one, tonnage instrument 15 is installed on the fuselage 18 of fly press, mould is installed on the fly press, input fly press rotary inertia J
mWith motor angular velocity ω c, be respectively 110kgm
2And 10s
-1The action of control motor 4, to be checked when measuring the motor angular velocity ω c that the motor angular velocity value equals to import, electric machine controller 1 control motor 4 is at the uniform velocity implemented to hit subsequently, and tonnage instrument 15 shows force value F
mBe 4.5 * 10
6N; By formula
Calculate the integral stiffness numerical value C of fly press and mould
mBe 1.8 * 10
9Nm
-1
Secondly, implement numerical control formation, concrete steps are:, the cold conditions blank is positioned between the mould of fly press input service data C 1. in operation one
l=1.6 * 10
9Nm
-1, F
Dl=5 * 10
6N, E
Dl=10 * 10
3J, by formula
Calculate the required motor speed ω of cold conditions forging and pressing
lValue be 18.9s
-1, and then 4 actions of control motor, equal the required motor speed ω of this press forging cold conditions shaping when detecting motor speed
lThe time, control motor 4 at the uniform velocity, slide block 13 is descending, implements to hit, obtain by the cold conditions press forging after the technological parameter shaping, after the strike end, motor 4 counter-rotatings, slide block 13 backhauls, when reaching top dead centre, 4 decelerations of control assembly control motor, brake 2 are braked; 2. in operation two, the cold conditions press forging is heated to 750 ℃, becomes warm attitude workpiece 21; 3. in operation three, repeat the step of operation one, warm attitude workpiece 21 is positioned between the mould of fly press, input service data C
m=1.8 * 10
9Nm
-1, F
Dm=6 * 10
6N, E
Dm=11 * 10
3J, by formula
Calculate the required motor speed ω of warm attitude forging and pressing
mValue be 19.5s
-1, and then 4 actions of control motor, equal the required motor speed ω of this press forging temperature attitude shaping when detecting the motor speed value
mThe time, control motor 4 at the uniform velocity, slide block 13 is descending, implements to hit, obtain by the warm attitude press forging after the technological parameter shaping, after hitting end, motor 4 counter-rotatings, slide block 13 backhauls, when reaching top dead centre, control assembly control motor 4 slows down, brake 2 brakings, finishes a working cycles, realizes the numerical control formation of press forging.
Claims (8)
1. the cold forging of a press forging-warm forging numerical control formation method is characterized in that adopting following steps:
Measure at first respectively and be used for cold forging, the fly press of warm forging and the numerical value of mould integral stiffness, wherein operation one is used for cold forging, be provided with fly press and mould and carry out cold forging, operation two is used for heating, and operation three is used for warm forging, is provided with fly press and mould and carries out warm forging, concrete steps are: 1. on operation one, tonnage instrument (15) is installed on the fuselage (18) of fly press, mould is installed on the fly press, input fly press rotary inertia J
lWith motor angular velocity ω c; Control motor (4) action, to be checked when measuring the motor angular velocity ω c that the motor angular velocity value equals to import, control assembly control motor (4) is at the uniform velocity implemented to hit subsequently, and tonnage instrument (15) shows force value F
lBy formula
Calculate the integral stiffness numerical value C of fly press and mould
l2. on operation three, repeat the step of operation one, tonnage instrument (15) is installed on the fuselage (18) of fly press, mould is installed on the fly press, input fly press rotary inertia J
mWith motor angular velocity ω c; Control motor (4) action, to be checked when measuring the motor angular velocity ω c that the motor angular velocity value equals to import, control assembly control motor (4) is at the uniform velocity implemented to hit subsequently, and tonnage instrument (15) shows force value F
mBy formula
Calculate the integral stiffness numerical value C of fly press and mould
m
Secondly, implement numerical control formation, concrete steps are:, the cold conditions blank is positioned between the mould of fly press input service data C 1. in operation one
l, E
Dl, F
Dl, control assembly is according to formula
Calculate the required motor speed ω of cold conditions forging and pressing
lValue, and then control motor (4) action equals this press forging cold conditions required motor speed ω that is shaped when detecting motor speed
lThe time, control motor (4) at the uniform velocity, slide block (13) is descending, implements to hit, obtain by the cold conditions press forging after the technological parameter shaping, after strike finishes, motor (4) counter-rotating, slide block (13) backhaul, when reaching top dead centre, control assembly control motor (4) slows down, brake (2) braking; 2. in operation two, the cold conditions press forging is heated to 700-800 ° of C, becomes warm attitude workpiece (21); 3. in operation three, repeat the step of operation one, warm attitude workpiece (21) is positioned between the mould of fly press, input service data C
m, E
Dm, F
Dm, control assembly is according to formula
Calculate the required motor speed ω of warm attitude forging and pressing
mValue, and then control motor (4) action equals the required motor speed ω of this press forging temperature attitude shaping when detecting the motor speed value
mThe time, control motor (4) at the uniform velocity, slide block (13) is descending, implements to hit, and obtains by the warm attitude press forging after the technological parameter shaping, after hitting end, motor (4) counter-rotating, slide block (13) backhaul is when reaching top dead centre, control assembly control motor (4) slows down, brake (2) braking, finishes a working cycles;
In the above-mentioned formula: ω c is motor angular velocity, and value is 3 π; J
lFor being used for the fly press rotary inertia of cold forging, C
lBe the fly press that is used for cold forging and the integral stiffness of mould, F
DlBe the resistance of deformation of cold conditions workpiece, E
DlBe the work of deformation of cold conditions workpiece, J
mFor being used for the fly press rotary inertia of warm forging, C
mBe the fly press that is used for warm forging and the integral stiffness of mould, F
DmBe the resistance of deformation of warm attitude workpiece (21), E
DmWork of deformation for warm attitude workpiece (21).
2. the cold forging of press forging as claimed in claim 1-warm forging numerical control formation method, it is characterized in that: fly press comprises motor (4), control assembly, transmission mechanism and is installed in operating mechanism on the fuselage (18), wherein control assembly is connected with motor (4), and motor (4) output shaft connects operating mechanism by transmission mechanism.
3. the cold forging of press forging as claimed in claim 2-warm forging numerical control formation method, it is characterized in that: control assembly comprises electric machine controller (1), brake (2), angular displacement sensor (3), Programmable Logic Controller (19) and touch-screen (20), wherein brake (2) and angular displacement sensor (3) are installed on the output shaft of motor (4), the input of the output termination motor (4) of electric machine controller (1), the input of electric machine controller (1) connects angular displacement sensor (3) respectively, the output of Programmable Logic Controller (19) and touch-screen (20), the control end of the output termination brake (2) of Programmable Logic Controller (19), the input of Programmable Logic Controller (19) connects touch-screen (20).
4. the cold forging of press forging as claimed in claim 2-warm forging numerical control formation method, it is characterized in that: transmission mechanism refers to belt transmission and gear drive, wherein belt transmission comprises driving pulley (5), driving-belt (6) and driven pulley (7), gear drive comprises gear shaft (8) and driven gear (9), driving pulley (5) is fixedly mounted on the output shaft of motor (4), driven pulley (7) is fixedly mounted on the gear shaft (8), and driven gear (9) is fixedly mounted in the operating mechanism.
5. the cold forging of press forging as claimed in claim 2-warm forging numerical control formation method, it is characterized in that: operating mechanism comprises screw rod (11), top nut (10), lower nut (12) and slide block (13), wherein the upper end of screw rod (11) connects transmission mechanism, screw rod (11) middle part connects fuselage (18) by top nut (10), and screw rod (11) bottom connects slide block (13) by lower nut (12).
6. the cold forging of press forging as claimed in claim 2-warm forging numerical control formation method, it is characterized in that: mould comprises patrix (14) and counterdie (16).
7. the cold forging of press forging as claimed in claim 1-warm forging numerical control formation method is characterized in that: motor (4) employing switched reluctance machines or reversible electric machine.
8. the cold forging of press forging as claimed in claim 3-warm forging numerical control formation method is characterized in that: angular displacement sensor (3) employing rotary transformer or Hall element, brake (2) employing disk brake.
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|---|---|---|---|
| CN 201110244862 CN102294423B (en) | 2011-08-23 | 2011-08-23 | Cold-forging-warm-forging numerically-controlled forming method for forged and pressed component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110244862 CN102294423B (en) | 2011-08-23 | 2011-08-23 | Cold-forging-warm-forging numerically-controlled forming method for forged and pressed component |
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| Publication Number | Publication Date |
|---|---|
| CN102294423A CN102294423A (en) | 2011-12-28 |
| CN102294423B true CN102294423B (en) | 2013-08-07 |
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| CN114799032B (en) * | 2022-04-25 | 2024-05-24 | 郑州机械研究所有限公司 | Screw forging, forming method of screw forging and forming die of screw forging |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1038607A2 (en) * | 1999-03-19 | 2000-09-27 | Sumitomo Heavy Industries, Ltd. | Forging press apparatus, controller of automation device used therefor and shut height controller |
| CN1970285A (en) * | 2005-11-25 | 2007-05-30 | 山东科汇电气股份有限公司 | Digital control method for spiral pressure machine transmission and digital control spiral pressure machine |
| TW201012568A (en) * | 2008-09-23 | 2010-04-01 | Jung-Chi Chiang | Closed type cold forge forming method for linear guideway |
| CN201566144U (en) * | 2009-11-06 | 2010-09-01 | 山东理工大学 | Clutch type numerical control screw press |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3288593B2 (en) * | 1996-12-19 | 2002-06-04 | 松下電器産業株式会社 | Method of forming O-ring mounting groove |
| JP2000265211A (en) * | 1999-03-17 | 2000-09-26 | Daido Steel Co Ltd | Heat treatment of high c-containing stainless steel slab and production of stainless steel-made parts utilizing this treatment |
| KR20100010575A (en) * | 2008-07-23 | 2010-02-02 | 김기범 | Forging apparatus |
-
2011
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1038607A2 (en) * | 1999-03-19 | 2000-09-27 | Sumitomo Heavy Industries, Ltd. | Forging press apparatus, controller of automation device used therefor and shut height controller |
| CN1970285A (en) * | 2005-11-25 | 2007-05-30 | 山东科汇电气股份有限公司 | Digital control method for spiral pressure machine transmission and digital control spiral pressure machine |
| TW201012568A (en) * | 2008-09-23 | 2010-04-01 | Jung-Chi Chiang | Closed type cold forge forming method for linear guideway |
| CN201566144U (en) * | 2009-11-06 | 2010-09-01 | 山东理工大学 | Clutch type numerical control screw press |
Non-Patent Citations (1)
| Title |
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| 赵婷婷，贾明全，朱亦军.螺旋类SRD伺服压力机机型设计与分析.《机械设计》.2011,第28卷(第6期), * |
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