CN102357636A - Striking force error control method of pressed piece - Google Patents
Striking force error control method of pressed piece Download PDFInfo
- Publication number
- CN102357636A CN102357636A CN2011102466394A CN201110246639A CN102357636A CN 102357636 A CN102357636 A CN 102357636A CN 2011102466394 A CN2011102466394 A CN 2011102466394A CN 201110246639 A CN201110246639 A CN 201110246639A CN 102357636 A CN102357636 A CN 102357636A
- Authority
- CN
- China
- Prior art keywords
- motor
- stock
- rolled
- omega
- power error
- 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.)
- Granted
Links
Landscapes
- Control Of Presses (AREA)
- Forging (AREA)
Abstract
The invention provides a striking force error control method of a pressed piece, which is characterized by adopting the following steps: firstly measuring composite stiffness numeric values of a screw press and a die, and the steps are as follows: (1) well mounting a tonnage instrument; (2) inputting the angular speed omega c of a motor and the rotational inertia J of the screw press; (3) controlling the motor to act till the angular speed of the motor achieves omega c and controlling the uniform speed of the motor; and (4) getting the composite stiffness C of the screw press and the die by the formula according to the displayed pressure value F; secondly performing numerical control forming, and the steps are as follows: (1) inputting C, Ed and Fd; (2) calculating the required rotational speed omega of the motor by the formula, wherein Fd1 is the displayed pressure value during striking, E is the energy of motion part, Wt is the elastic deformation work of a stressed piece and delta F is the striking force error, which are obtained by the formulas respectively; and further calculating the required rotational speed compensation precision delta omega of the motor by the formula, getting the rotational speed value omega d of the motor, which is required for re-striking by the formula omega d equals omega (1 plus delta omega), and controlling the motor to act at the omega d rotational speed. The striking force and the pressed piece thereof are high in precision, energy-saving and high-efficient and can also be used for cold-state, warm-state and hot-state forging forming of various metal forged pieces.
Description
Technical field
The present invention provides a kind of hitting power error control method of rolled-up stock, belongs to the mechanical industry technical field.
Background technology
Present metal crimp product production has technologies such as die forging and extruding; Die forging has hammer to go up technologies such as die forging, hydraulic press die forging, crank press die forging, horizontal forging and upsetting machine die forging, friction press die forging; Be extruded with technologies such as hydraulic press extruding, crank press extruding, friction press extruding; Its blow speed and blow energy need artificial or machinery control, and shortcoming is that part accuracy is low, power ability error is big.
Summary of the invention
The objective of the invention is to above-mentioned existing problems, the hitting power error control method of the rolled-up stock that a kind of part accuracy is high, power ability error is little is provided.Its technical scheme is:
A kind of hitting power error control method of rolled-up stock is characterized in that adopting following steps:
At first confirm the numerical value of fly press and mould integral stiffness, concrete steps are: 1. the tonnage appearance is installed on the fuselage of fly press, is installed to mould on the fly press; 2. through control assembly input motor angular velocity ω c and fly press rotary inertia J; 3. through control assembly 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; 4. the force value F that shows according to the tonnage appearance, by formula
calculates the integral stiffness value C of fly press and mould;
Secondly, be positioned over blank between the fly press mould, implement the numerical control formation of press forging, concrete steps are: 1. import service data C, E
d, F
d, 2. control assembly is according to formula
Calculate the value of required motor speed ω, with action of ω rotating speed and then the operation of control fly press, the force value that the tonnage appearance shows during strike is F through the control motor
D1
Once more, by control assembly according to formula
Obtain the hitting power error delta
F, motion parts energy E, stressed member resilience work of deformation W
tValue, by formula
Calculate motor speed compensation precision δ
ω, by formula ω
d=ω (1+ δ
ω) calculate and hit required motor speed value ω once more
d, through controlling motor (4) with ω
dThe rotating speed action is with control hitting power error;
ω c is a motor angular velocity in the formula, recommends value 3 π, F
dBe workpiece deformation drag, E
dBe the workpiece deformation merit.
The hitting power error control method of described rolled-up stock, fly press comprise motor, control assembly, transmission mechanism and be installed in the operating mechanism on the fuselage, and wherein control assembly is connected with motor, and motor output shaft connects operating mechanism through transmission mechanism.
The hitting power error control method of described rolled-up stock; 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, and the input of Programmable Logic Controller connects touch-screen.
The hitting power error control method of described rolled-up stock; Transmission mechanism is meant belt transmission and gear drive; Wherein belt transmission comprises driving pulley, driving-belt and driven pulley, and gear drive comprises gear shaft and driven gear, and 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 hitting power error control method of described rolled-up stock, 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 through top nut, and the screw rod bottom connects slide block through lower nut.
The hitting power error control method of described rolled-up stock, mould comprises upper die and lower die.
The hitting power error control method of described rolled-up stock, motor adopts switched reluctance machines or reversible electric machine.
The hitting power error control method of described rolled-up stock, angular displacement sensor adopts rotary transformer or Hall element, and brake adopts disk brake.
Described blank, workpiece and rolled-up stock are respectively the title of same object before distortion, after the distortion neutralization distortion, and rolled-up stock can be a metal material, also can be nonmetallic materials.
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 rolled-up stock is accurately controlled through the input data, processes rolled-up stock in this way, and hitting power and rolled-up stock precision thereof are high, allowance is 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 the cold conditions of various metal forging, warm attitude and hot excellent suitability for press forming, also can be used for the compression moulding of nonmetallic materials.
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 appearance 16, counterdie 17, backing plate 18, fuselage 19, Programmable Logic Controller 20, touch-screen
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further specified: fly press comprises motor 4, control assembly, transmission mechanism and is installed in the operating mechanism on the fuselage 18, wherein:
Motor 4 adopts switched reluctance machines, and angular displacement sensor 3 adopts rotary transformer, and brake 2 adopts disk brake, and this outer mold comprises patrix 14 and counterdie 16.
Control assembly comprises electric machine controller 1, brake 2, angular displacement sensor 3, Programmable Logic Controller 19 and touch-screen 20; Wherein brake 2 is installed on the output shaft of motor 4 with angular displacement sensor 3; 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 is meant 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, and 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 through top nut 10, and screw rod 11 bottoms connect slide block 13 through lower nut 12.
Embodiment: module adopts a station mould, suppresses a rolled-up stock, and the motor angular velocity ω c that is used to measure integral stiffness is 10s
-1, fly press rotary inertia J is 100kgm
2, workpiece deformation drag F
dBe 5 * 10
6N, workpiece deformation merit E
dBe 10 * 10
3J, concrete forming process is:
At first confirm the numerical value of fly press and mould integral stiffness; Concrete steps are: 1. tonnage appearance 15 is installed on the fuselage 18 of fly press, the slide block 13 upper and lower moulds 16 that are installed to patrix 14 fly press are installed on the backing plate 17 of fly press; 2. through touch-screen 20 input motor angular velocity ω c and fly press rotary inertia J values, be respectively 10s
-1And 100kgm
23. through 4 actions of electric machine controller 1 control motor, when treating that angular displacement sensor 3 detects 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 the force value F that tonnage appearance 15 shows is 4 * 10
6N; 4. the force value F that shows according to tonnage appearance 15, by formula
The integral stiffness value of calculating fly press and mould is 1.6 * 10
9Nm
-1
Secondly, be positioned over blank between fly press patrix 14, the counterdie 16, implement the numerical control formation of rolled-up stock, concrete steps are: 1. import service data: C=1.6 * 10
9Nm
-1, F
d=5 * 10
6N, E
d=10 * 10
3J is 2. according to formula
The value of calculating the required motor speed ω of this rolled-up stock shaping is 18.9s
-1, through controlling motor 4 with 18.9s
-1Rotating speed action and then the operation of control fly press, treat that angular displacement sensor 3 detects ω=18.9s that the motor speed value equals to import
-1, electric machine controller 1 control motor 4 is at the uniform velocity implemented to hit subsequently, and tonnage appearance 15 shows the strike force value
Be 4.9 * 10
6N; ,
Once more, by the motion parts energy
The resilience work of deformation of stressed member
The hitting power error
Calculate and obtain E=17.8 * 10
3J, W
t=7.5 * 10
3J, δ
F=0.02; By formula
Calculate motor speed compensation precision δ
ωValue is 0.008, by formula ω
d=ω (1+ δ
ω) calculate and hit required motor speed value ω once more
dBe 19.1, control motor 4 with ω through electric machine controller 1
dThe rotating speed action is with control hitting power error.
Claims (8)
1. the hitting power error control method of a rolled-up stock is characterized in that adopting following steps:
At first confirm the numerical value of fly press and mould integral stiffness, concrete steps are: 1. tonnage appearance (15) is installed on the fuselage (18) of fly press, is installed to mould on the fly press; 2. through control assembly input motor angular velocity ω c and fly press rotary inertia J; 3. through control assembly 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; 4. the force value F that shows according to tonnage appearance (15), by formula
calculates the integral stiffness value C of fly press and mould;
Secondly, be positioned over blank between the fly press mould, implement the numerical control formation of rolled-up stock, concrete steps are: 1. import service data C, E
d, F
d, 2. control assembly is according to formula
Calculate the value of required motor speed ω, with action of ω rotating speed and then the operation of control fly press, the force value that tonnage appearance (15) shows during strike does through control motor (4)
Once more, by control assembly according to formula
Obtain the hitting power error delta
F, motion parts energy E and stressed member resilience work of deformation W
tValue, by formula
Calculate motor speed compensation precision δ
ω,
By formula ω
d=ω (1+ δ
ω) calculate and hit required motor speed value ω once more
d, through controlling motor (4) with ω
dThe rotating speed action is with control hitting power error;
ω c is a motor angular velocity in the formula, recommends value 3 π, F
dBe workpiece deformation drag, E
dBe the workpiece deformation merit.
2. the hitting power error control method of rolled-up stock as claimed in claim 1; It is characterized in that: fly press comprises motor (4), control assembly, transmission mechanism and is installed in the operating mechanism on the fuselage (18); Wherein control assembly is connected with motor (4), and motor (4) output shaft connects operating mechanism through transmission mechanism.
3. the hitting power error control method of rolled-up stock as claimed in claim 2; 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 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).
4. the hitting power error control method of rolled-up stock as claimed in claim 2; It is characterized in that: transmission mechanism is meant belt transmission and gear drive; Wherein belt transmission comprises driving pulley (5), driving-belt (6) and driven pulley (7), and gear drive comprises gear shaft (8) and driven gear (9), and 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 hitting power error control method of rolled-up stock as claimed in claim 2; 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) through top nut (10), and screw rod (11) bottom connects slide block (13) through lower nut (12).
6. the hitting power error control method of rolled-up stock as claimed in claim 1, it is characterized in that: mould comprises patrix (14) and counterdie (16).
7. the hitting power error control method of rolled-up stock as claimed in claim 1 is characterized in that: motor (4) employing switched reluctance machines or reversible electric machine.
8. the hitting power error control method of rolled-up stock as claimed in claim 3 is characterized in that: angular displacement sensor (3) employing rotary transformer or Hall element, brake (2) employing disk brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110246639 CN102357636B (en) | 2011-08-23 | 2011-08-23 | Striking force error control method of pressed piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110246639 CN102357636B (en) | 2011-08-23 | 2011-08-23 | Striking force error control method of pressed piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102357636A true CN102357636A (en) | 2012-02-22 |
| CN102357636B CN102357636B (en) | 2013-09-18 |
Family
ID=45583048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110246639 Expired - Fee Related CN102357636B (en) | 2011-08-23 | 2011-08-23 | Striking force error control method of pressed piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102357636B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142997A (en) * | 2019-05-14 | 2019-08-20 | 南京农业大学 | A kind of multi-connecting rod servo press machine motion control method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006082102A (en) * | 2004-09-15 | 2006-03-30 | Komatsu Ltd | Apparatus for controlling hybrid control servopress and method for controlling the same |
| CN1799724A (en) * | 2005-12-06 | 2006-07-12 | 安阳锻压机械工业有限公司 | Control method of digital complete hydraulic die forging hammer |
| CN101105417A (en) * | 2006-07-14 | 2008-01-16 | 中南大学 | Large-scale die forging water press pressure lack on-line detection method |
| CN101444817A (en) * | 2008-12-29 | 2009-06-03 | 中国第一重型机械集团公司 | Control method for positioning position-pressure of hydraulic cylinder of large-scale forging manipulator |
| US20100307217A1 (en) * | 2003-12-17 | 2010-12-09 | Automation Presses Tooling Ap&T Ab | Apparatus and method for compensating for stress deformation in a press |
-
2011
- 2011-08-23 CN CN 201110246639 patent/CN102357636B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100307217A1 (en) * | 2003-12-17 | 2010-12-09 | Automation Presses Tooling Ap&T Ab | Apparatus and method for compensating for stress deformation in a press |
| JP2006082102A (en) * | 2004-09-15 | 2006-03-30 | Komatsu Ltd | Apparatus for controlling hybrid control servopress and method for controlling the same |
| CN1799724A (en) * | 2005-12-06 | 2006-07-12 | 安阳锻压机械工业有限公司 | Control method of digital complete hydraulic die forging hammer |
| CN101105417A (en) * | 2006-07-14 | 2008-01-16 | 中南大学 | Large-scale die forging water press pressure lack on-line detection method |
| CN101444817A (en) * | 2008-12-29 | 2009-06-03 | 中国第一重型机械集团公司 | Control method for positioning position-pressure of hydraulic cylinder of large-scale forging manipulator |
Non-Patent Citations (2)
| Title |
|---|
| 张国强等: "螺旋压力机打击力测量的研究", 《山东工业大学学报》 * |
| 毕见强等: "锻压机械打击力测量误差的加速度补偿", 《锻压技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110142997A (en) * | 2019-05-14 | 2019-08-20 | 南京农业大学 | A kind of multi-connecting rod servo press machine motion control method and system |
| CN110142997B (en) * | 2019-05-14 | 2024-01-23 | 南京农业大学 | Motion control method and system for multi-connecting-rod servo press |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102357636B (en) | 2013-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103317071B (en) | A kind of transmission system of alternating-current servo direct drive type hotdie forging press | |
| CN102357636B (en) | Striking force error control method of pressed piece | |
| CN102319856B (en) | Free forging screw press numerical control forming method | |
| CN102294423B (en) | Cold-forging-warm-forging numerically-controlled forming method for forged and pressed component | |
| CN102303419B (en) | Numerical control method for process curve of crank press | |
| CN102284659B (en) | Numerical control (NC) forming method for forged piece | |
| CN101530875B (en) | Automatic charging and demoulding device of volumetric automatic cold press | |
| CN102357630B (en) | Numerical control forming method of hot die forging | |
| CN106111724B (en) | Rotary multifunctional shaped device is used in one kind forging | |
| CN202270902U (en) | Frequency conversion type friction press | |
| CN114535429A (en) | Automobile sheet metal machining auxiliary device | |
| CN110369667B (en) | Forging equipment is used in manufacturing of mechanical gear part | |
| CN102350477B (en) | Numerical control forming method for automatically fed-in forge piece | |
| CN205869096U (en) | Forge with multi -functional forming device of rotation type | |
| CN211248136U (en) | Vertical high-efficient mould frock of forging of duplicate gear part | |
| CN102323021A (en) | Method for measuring comprehensive rigidity of screw press and mold | |
| CN109822037A (en) | A kind of automobile axle driving gear forging forming technique | |
| CN105081162A (en) | Method for achieving non-flash forging of universal joint fork forging blanks | |
| CN101229692A (en) | Same work station and double working procedure forcing press | |
| CN201446180U (en) | Driving control device of spinning machine | |
| CN205496338U (en) | Multi -functional machine of spending of twisting | |
| CN103084526A (en) | Frequency conversion type double disk friction press | |
| CN103128226B (en) | Feeding method used for materials with high strength and large diameter of cold header | |
| CN204035292U (en) | A kind of punch press for the manufacture of circuit breaker armature | |
| CN102228948B (en) | Thermal precise forming method and device for toothed steering rocker arm shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20140823 |
|
| EXPY | Termination of patent right or utility model |