CN1037418C - Program-controlled frequency-changing flying sawing machine - Google Patents
Program-controlled frequency-changing flying sawing machine Download PDFInfo
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- CN1037418C CN1037418C CN94118413A CN94118413A CN1037418C CN 1037418 C CN1037418 C CN 1037418C CN 94118413 A CN94118413 A CN 94118413A CN 94118413 A CN94118413 A CN 94118413A CN 1037418 C CN1037418 C CN 1037418C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The present invention relates to a program-controlled frequency changing and length determining flying saw which comprises a flying saw trolley and a mechanical transmission device. The present invention is characterized in that a power control device of a flying saw is composed of a microcomputer control system, a frequency changer and an alternating current motor, wherein the output end of the microcomputer control system is connected with the input end of the frequency changer, and the output end of the frequency changer is connected with the input end of the alternating current motor; the output shaft of the alternating current motor is connected with the input end of the mechanical transmission device which changes a rotary movement into a horizontal movement, and the output end of the mechanical transmission device is connected with the input end of the flying saw trolley; a detection device which is arranged on the mechanical transmission device is communicated with the microprocessor system. The present invention has the advantages of simple structure, low cost, high precision and convenient maintenance.
Description
The invention belongs to a kind of equipment of scale cutting metal tubing, particularly a kind of program-controlled frequency-changing flying sawing machine.
Be used for the saw that flies of scale cutting at present in the welded tube industry tinuous production, mainly contain three kinds of forms: pneumatic machinery formula, electric liquid drive-type and direct current generator drive-type.The pneumatic machinery formula flies to saw simple in structure, but has the shortcoming that easily causes error in the work, and the scale adjustment is difficult; It is adjustable that electricity liquid drive-type flies to saw its cut lengths, but sizing accuracy can be subjected to factor affecting such as oil pressure, temperature, and the volume of integral device device is big simultaneously, noise is high, big energy-consuming, cost height and plant maintenance workload are big; The direct current generator drive-type flies to saw the operation that utilizes DC speed regulation control to fly to saw dolly, this saw sizing accuracy height, but control system complex structure, and condition of work is had relatively high expectations, and is difficult to safeguard.
The objective of the invention is to design a kind of program-controlled frequency-changing flying sawing machine, it is to use the computer control alternating current generator to drive and flies to saw trolley travelling, and the whole close-loop control mode that adopts has the precision height, and is simple in structure, the characteristics that cost is low and easy to maintenance.
Technical scheme of the present invention: a kind of program-controlled frequency-changing flying sawing machine, comprise and fly to saw dolly and mechanical driving device, it is characterized in that the power control unit that flies to saw is made up of Control System of Microcomputer, frequency converter and alternating current generator, the input of the output termination frequency converter of said Control System of Microcomputer, the input of the output termination alternating current generator of frequency converter, the output shaft of alternating current generator switches through the input of the moving moving mechanical driving device that flattens, and the output termination of mechanical driving device flies the input according to dolly.
Above-mentioned Control System of Microcomputer in flying to saw, be made up of all-purpose computer and peripheral interface circuit, wherein peripheral circuit mainly comprises checkout gear circuit, frequency-dividing counter circuit, feedback device circuit, D/A converter and the sawing circuit arrangement that connects by the I/O interface; Said checkout gear circuit is by the roller that tests the speed, photoelectric encoder and is constituted near switch, the output signal of photoelectric encoder enters frequency-dividing counter, the output of frequency-dividing counter connects the Computer signal input, position output signal near switch directly connects the computer input, feedback device adopts another photoelectric encoder to constitute, its feedback signal directly connects the computer input, the computer digit output connects the frequency converter input by D/A converter, and the output control signal of computer connects magnetic valve in frequency converter and the saw cutting device respectively by the I/O interface.
The operation principle of the present invention and the course of work are: the frequency converter that at first computerizeds control, alternating current generator is carried out speed governing, making its speed of accurately following production line carry out dynamic speed follows the tracks of, checkout gear is arranged in the computer control system, monitor the speed and the length of steel pipe and flying respectively and saw the speed that dolly follows the trail of and follow the trail of stroke, the control mode of employing speed, the two closed loops of length, speed and length are finely tuned immediately, it is synchronous with the strictness of pipe speed that thereby control flies to saw dolly, guarantees the sizing accuracy of sawing.Its course of work is: be pressed in the moving photoelectric encoder rotation of the roller strap that tests the speed on the steel pipe, the length of the speed of service of monitoring steel pipe and record steel pipe, computer to tachometer pulse count, frequency division, export corresponding speed control signal, be sent to frequency converter through D/A converter, drive alternating current generator by frequency converter, and according to the tracking of mechanical driving device control dolly, synchronously with return.The sawing signal is the beginning in each cycle, and after putting steel pipe earlier and walking out necessarily in advance the amount of stretching, computer sends clamping, saw order down, through the action of I/O interface control saw cutting device.Computer from feedback device obtain feedback signal and given speed relatively, regulate, thereby control frequency converter, the motor and the speed of service that flies to saw dolly, and then the precision of control scale, computer adopts near switch, reaches no cumulative errors, accurately locatees.The output of Control System of Microcomputer connects the control input end of frequency converter, thus control motor speed, forward and backward and parking.
Superiority of the present invention is: 1, simple in structure, can adopt various universal component combinations; 2, utilize computer to pass through the operation of Frequency Converter Control alternating current generator, both improved service behaviour, reduced cost of manufacture again; 3, guaranteed required precision, can rapidly, accurately carry out sawing, sizing accuracy can reach ± 2.5mm; 4, be easy to safeguard.
Further specify present technique below in conjunction with drawings and Examples.
Accompanying drawing 1 is the overall structure schematic diagram of the related program-controlled frequency-changing flying sawing machine of the present invention.
Accompanying drawing 2 is the operation principle block diagram of the related program-controlled frequency-changing flying sawing machine of the present invention.
Accompanying drawing 3 is the Control System of Microcomputer block diagram of the related program-controlled frequency-changing flying sawing machine of the present invention.
Accompanying drawing 4 is the hardware connection layout of the control system of the related program-controlled frequency-changing flying sawing machine of the present invention.
Embodiment:
A kind of program-controlled frequency-changing flying sawing machine (seeing Fig. 1-2), comprise that flying to saw dolly (is dolly 8, sawing motor 9, saw blade 10, clamping device (1) and mechanical driving device (are reductor 5, gear 6, tooth bar 7), it is characterized in that the power control unit that flies to saw is by Control System of Microcomputer (being computer console 1), frequency converter (being frequency conversion drive cabinet 2) and alternating current generator 4 are formed, the output of said computer console is connected with frequency conversion drive cabinet input, the input of frequency conversion drive cabinet output termination alternating current generator, be coupling reductor input of the output of alternating current generator, the output of reductor connects gear, the gears engaged tooth bar, tooth bar connects the dolly 8 on the track 15, feedback light photoelectric coder 3 and 6 coaxial connections of gear, clamping device 11 and sawing motor 9 are housed on the dolly, sawing driven by motor saw blade 10 rotates, control signal work according to computer, online steel pipe 12 drives roller 13 rotations of testing the speed and makes and send the tachometer pulse signal with the coaxial photoelectric encoder that is connected 14 of the roller that tests the speed and give computer, and computer sends control signal corresponding according to tachometer pulse and makes the integral device operation.
Above-mentioned Control System of Microcomputer (see figure 3) in flying to saw, be made up of all-purpose computer and peripheral interface circuit, wherein peripheral circuit comprises checkout gear circuit, frequency-dividing counter circuit, feedback device circuit, finger-impu system, memory, display, D/A converter and the sawing circuit arrangement that connects by the I/O interface; Said checkout gear circuit is by the roller that tests the speed, photoelectric encoder and is constituted near switch, the output signal of photoelectric encoder enters frequency-dividing counter, the output of frequency-dividing counter connects the Computer signal input, position output signal near switch directly connects the computer input, feedback device adopts another photoelectric encoder to constitute, its feedback signal directly connects the computer input, finger-impu system connects the data input pin of computer, the data wire of memory and control line link to each other with the data wire and the control line of computer, and the state output end of computer connects display; The computer digit output connects the frequency converter input by D/A converter, and the output control signal of computer connects magnetic valve in frequency converter and the saw cutting device respectively by the I/O interface.
The hardware line of the above-mentioned frequency converter that is connected with the microsystem output in flying to saw is a (see figure 4): its power input connects external AC power supply through breaker and reactor, the input of its output termination alternating current generator, electro-magnetic braking device is equipped with in alternating current generator inside, the output of 1,4 input termination breakers of this device, behind breaker closing, electromagnetic braking discharges, when breaker disconnects, and the electromagnetic braking band-type brake.
Computer adopts all-purpose computer, and frequency converter can adopt the FVRG7S type, and alternating current generator can adopt YEJ type braking motor.
Claims (4)
1, a kind of program-controlled frequency-changing flying sawing machine, comprise and fly to saw dolly and mechanical driving device, it is characterized in that the power control unit that flies to saw is made up of Control System of Microcomputer, frequency converter and alternating current generator, the input of the output termination frequency converter of said Control System of Microcomputer, the input of the output termination alternating current generator of frequency converter, the output shaft of alternating current generator switches through the input of the moving moving mechanical driving device that flattens, and the output termination of mechanical driving device flies the input according to dolly.
2, by the described program-controlled frequency-changing flying sawing machine of claim 1, it is characterized in that said Control System of Microcomputer is made up of all-purpose computer and peripheral interface circuit, wherein peripheral circuit comprises checkout gear circuit, frequency-dividing counter circuit, feedback device circuit, finger-impu system, memory, display, D/A converter and the sawing circuit arrangement that connects by the I/O interface; Said checkout gear circuit is by the roller that tests the speed, photoelectric encoder and is constituted near switch, the output signal of photoelectric encoder enters frequency-dividing counter, the output of frequency-dividing counter connects the Computer signal input, position output signal near switch directly connects the computer input, feedback device adopts another photoelectric encoder to constitute, its feedback signal directly connects the computer input, finger-impu system connects the data input pin of computer, and the data wire of memory and control line link to each other with the data wire and the control line of computer; The state output end of computer connects display, and the computer digit output connects the frequency converter input by D/A converter, and the output control signal of computer connects magnetic valve in frequency converter and the saw cutting device respectively by the I/O interface.
3, by the said program-controlled frequency-changing flying sawing machine of claim 1, the hardware line that it is characterized in that the said frequency converter that is connected with the microsystem output in flying to saw is: its power input connects external AC power supply through breaker and reactor, the input of its output termination alternating current generator, electro-magnetic braking device is equipped with in alternating current generator inside, the output of 1,4 input termination breakers of this device, behind breaker closing, electromagnetic braking discharges, when breaker disconnects, the electromagnetic braking band-type brake.
4, by the said program-controlled frequency-changing flying sawing machine of claim 1, it is characterized in that the said rotation that is connected with the output shaft of alternating current generator in flying the to saw moving mechanical driving device that flattens is made up of reductor and gear, tooth bar, motor output end is connected with the reductor input, reductor output connects gear, the gears engaged tooth bar, the tooth bar connection flies to saw dolly, and wherein reductor adopts planet cycloid formula reductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94118413A CN1037418C (en) | 1994-12-03 | 1994-12-03 | Program-controlled frequency-changing flying sawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94118413A CN1037418C (en) | 1994-12-03 | 1994-12-03 | Program-controlled frequency-changing flying sawing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1108982A CN1108982A (en) | 1995-09-27 |
| CN1037418C true CN1037418C (en) | 1998-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94118413A Expired - Fee Related CN1037418C (en) | 1994-12-03 | 1994-12-03 | Program-controlled frequency-changing flying sawing machine |
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| Country | Link |
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| CN (1) | CN1037418C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102575945B (en) * | 2009-09-09 | 2015-07-01 | 株式会社安川电机 | Inverter apparatus and inverter system |
| CN103433556A (en) * | 2013-08-23 | 2013-12-11 | 江苏省南扬机械制造有限公司 | Compression roller drive mechanism of flying saw machine |
| CN105478893B (en) * | 2015-12-23 | 2019-02-19 | 大连三高科技发展有限公司 | Double vehicle type fixed length flying saws |
| CN105643360A (en) * | 2015-12-31 | 2016-06-08 | 大连三高科技发展有限公司 | Control method of empty curving molding set for straight seam electric resistance welded pipe |
| CN107262807A (en) * | 2017-08-08 | 2017-10-20 | 江苏亚太轻合金科技股份有限公司 | A kind of automatic sliding cutting equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0204845A1 (en) * | 1984-11-30 | 1986-12-17 | Mitsubishi Jukogyo Kabushiki Kaisha | Rotary cutter control method |
| CN1057607A (en) * | 1990-06-21 | 1992-01-08 | 河北省张家口地区贾家营钢管厂 | Micro-computer controlling system for cylinder-driven flying saw |
| CN1063066A (en) * | 1991-05-03 | 1992-07-29 | 天津大学冶金分校 | Electric-hydraulic flying saw with digital control system |
| WO1994000263A1 (en) * | 1992-06-30 | 1994-01-06 | Aeg Automation Systems Corporation | An improved method and apparatus for determining the position trim for a crop shear knife control |
| CN2195401Y (en) * | 1994-06-16 | 1995-04-26 | 上海市电气自动化研究所 | Computer shear-gauge length control apparatus of pneumatic flying saw for steel pipes |
-
1994
- 1994-12-03 CN CN94118413A patent/CN1037418C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0204845A1 (en) * | 1984-11-30 | 1986-12-17 | Mitsubishi Jukogyo Kabushiki Kaisha | Rotary cutter control method |
| CN1057607A (en) * | 1990-06-21 | 1992-01-08 | 河北省张家口地区贾家营钢管厂 | Micro-computer controlling system for cylinder-driven flying saw |
| CN1063066A (en) * | 1991-05-03 | 1992-07-29 | 天津大学冶金分校 | Electric-hydraulic flying saw with digital control system |
| CN1023772C (en) * | 1991-05-03 | 1994-02-16 | 天津大学冶金分校 | Electric-hydraulic flying saw with digital control system |
| WO1994000263A1 (en) * | 1992-06-30 | 1994-01-06 | Aeg Automation Systems Corporation | An improved method and apparatus for determining the position trim for a crop shear knife control |
| CN2195401Y (en) * | 1994-06-16 | 1995-04-26 | 上海市电气自动化研究所 | Computer shear-gauge length control apparatus of pneumatic flying saw for steel pipes |
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| Publication number | Publication date |
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| CN1108982A (en) | 1995-09-27 |
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