CN107138801A - Saw control system based on universal impact switch - Google Patents

Saw control system based on universal impact switch Download PDF

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Publication number
CN107138801A
CN107138801A CN201710530764.5A CN201710530764A CN107138801A CN 107138801 A CN107138801 A CN 107138801A CN 201710530764 A CN201710530764 A CN 201710530764A CN 107138801 A CN107138801 A CN 107138801A
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China
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saw
control
sawing
final position
hydraulic
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CN201710530764.5A
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CN107138801B (en
Inventor
叶光平
张昱
汪志远
张利明
黄震
徐洪
高凌云
程良武
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Maanshan Iron and Steel Co Ltd
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Maanshan Iron and Steel Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D59/00Accessories specially designed for sawing machines or sawing devices
    • B23D59/001Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)

Abstract

The present invention is applied to hydraulic pressure drive control system technical field, there is provided a kind of saw control system based on universal impact switch, the system is detected by detection switch to section steel sawing machine position, such as sawing final position, saw holding fix, the saw easily broken down is substituted with this and enters to saw displacement transducer;In addition, by the way that the sawing final position of saw is divided into n# sawing final positions, the detection for certain web width formed steel sawing final position is opened in each sawing final position detection.To ensure the reliable detection of sawing final position, correspondence sawing final position detection switch go wrong and fail to examine in the case of, the control system is then used as current web width formed steel sawing final position detection switch using next sawing final position detection switch.

Description

Saw control system based on universal impact switch
Technical field
The invention belongs to hydraulic pressure drive control system technical field, more particularly to a kind of saw control based on universal impact switch System processed.
Background technology
Ma Gang great H profile steels saw is main, and by saw upper saddle, saw upper saddle driving hydraulic cylinder, (abbreviation saw feeds hydraulic pressure Cylinder) and saw clamping arm mechanism etc. constitute, and the saw blade rotating actuator of saw is then placed on saw upper saddle, for The shaped steel of different size, in order that saw can be returned in time after sawed-off shaped steel, in case there is larger sawing overtravel in saw And sawing is to the chuck of clamping limb, the sawing final position of saw will change with the change of shaped steel specification.So, in order to realize not The sawing of same specification shaped steel, generally enters to saw and Linear displacement transducer is installed in hydraulic cylinder in saw, and saw is detected and controlled with this The actual supplying position of machine.For section steel sawing machine, its working environment is quite severe, in shaped steel machine during sawing, not only There is dense water smoke around saw saw blade and substantial amounts of metal dust splashes, and also there are violent vibrations sometimes in saw, Linear displacement transducer communicating interrupt easily is caused, in addition, electric welding is commonly present in saw maintenance process, during maintainer Machine improper use, causes Linear displacement transducer to damage.
The content of the invention
The embodiments of the invention provide a kind of saw control system based on universal impact switch, it is intended to which solution is arranged on Saw enters to saw hydraulic cylinder linear displacement sensor due to violent vibrations, easily causes Linear displacement transducer communicating interrupt, Or in saw maintenance process, cause Linear displacement transducer to damage due to improper using electric welding machine, and cause saw There is larger sawing overtravel and sawing to clamping limb chuck the problem of.
The invention provides a kind of saw control system arrived based on universal impact switch, the saw control system bag Include:Functional block XJJC03~XJJC37 constitutes the saw sawing final position selecting unit that saw feeds without gap sensors;Functional block XJJC01, XJJC02, XJJC38~XJJC45, XJJC49~XJJC54 and XJJC58~XJJC62 constitute saw feeding without position The saw automatic sawing, cutting control unit of displacement sensor;And functional block XJJC46~XJJC50 and XJJC55~XJJC62 is constituted The manual forward/back saw control unit of saw, wherein,
Need to enter depth in saw clamping limb chuck, the change of saw saw blade diameter when cutting off shaped steel based on saw saw blade And saw clamping limb chuck allows the depth that saw blade enters, and the sawing final position of saw is divided into n fixing point, that is, it is divided into n# saws Cut final position, and each fixing point at intervals of m millimeters, each fixing point is detected by a universal impact switch, due to H types The web width of steel meets 200+m* (n-1)=800, the saw sawing final position selection between 200~800 millimeters Unit selects corresponding x# sawings whole according to when the current cut type steel web width for sawing that people-machine active station that saw is controlled is set Position, during saw is entered, is opened by the universal collision of the universal impact switch or x+1# sawing final positions of x# sawing final positions Put the detection of row sawing final position into;
Saw is in holding fix, saw main transmission and saw hydraulic and lubricating system is ready, saw clamping limb has been pressed from both sides Tight and in the case that saw roller table speed is zero, saw control system is sent after saw automatic sawing, cutting enabling signal, if saw In automatic running mode, saw main transmission and saw hydraulic and lubricating system fault-free, saw without tightly stopping signal and saw Cooling water has been opened, and the saw automatic sawing, cutting control unit makes saw enter to saw the opening/closing control of hydraulic circuit hydraulic control one-way valve The solenoid directional control valve of system obtains electric, and the hydraulic control one-way valve is opened, meanwhile, one pulse width of output is ' 1 ' pulse of M seconds, to saw Machine forward/back saw control proportioning valve, which applies a big control voltage, makes saw quickly enter saw, during saw quickly enters saw, When saw arrival saw sawing start bit or saw, which quickly enter the saw time, reaches M seconds, applied to saw forward/back saw control proportioning valve Plus control voltage be zero, saw enters to saw the solenoid directional control valve dead electricity of hydraulic circuit hydraulic control one-way valve open close control, the hydraulic control Closed check valve, saw will stop quickly entering saw operation;Apply one in people-machine to saw forward/back saw control proportioning valve afterwards The automatic sawing, cutting control voltage set on active station makes saw with certain speed sawing shaped steel, is set when saw enters sawing arrival During fixed saw sawing final position, saw automatic sawing, cutting control unit feeds back to saw based on saw sawing final position selecting unit The control voltage that forward/back saw controls proportioning valve to apply is zero, and saw enters to saw the electromagnetism of hydraulic circuit hydraulic control one-way valve open close control Reversal valve dead electricity, the hydraulic control one-way valve is closed, and saw will stop sawing, and afterwards, saw is entered to saw hydraulic circuit fluid-control one-way again The solenoid directional control valve of valve open close control obtains electric, and the hydraulic control one-way valve is opened, and one is applied to saw forward/back saw control proportioning valve It is individual set on people-machine active station move back saw control voltage, make saw carry out it is fast automatic move back saw, when saw is retreated to saw etc. When position, it is zero that the control voltage for controlling proportioning valve to apply is sawed to saw forward/back, and saw enters to saw hydraulic circuit hydraulic control one-way valve The solenoid directional control valve dead electricity of open close control, the hydraulic control one-way valve is closed, and saw will stop retreating;
In saw hydraulic pressure and lubricating system fault-free, saw without tightly stopping signal and saw is not in maximum sawing position In the case of, when saw is sent under manual mode entering saw instruction manually, saw manual forward/back saw control unit causes saw hydraulic pressure The solenoid directional control valve of loop hydraulic control one-way valve open close control obtains electric, and the hydraulic control one-way valve is opened, meanwhile, give saw forward/back saw Control proportioning valve to apply one and automatic sawing, cutting identical control voltage, saw is entered saw manually with the progress of automatic sawing, cutting speed and grasp Make, disappeared until saw enters saw instruction manually;Sent under manual mode saw move back manually saw instruction when, the manual forward/back of saw Saw control unit causes the solenoid directional control valve of saw hydraulic circuit hydraulic control one-way valve open close control to obtain electric, the hydraulic control one-way valve Open, meanwhile, control proportioning valve application one to move back saw identical control voltage with automatic to saw forward/back saw, make saw with certainly Dynamic saw speed of moving back carries out moving back saw operation manually, is disappeared until saw moves back saw instruction manually.
The embodiment of the present invention is detected by universal impact switch to sawing final position, is solved because linear displacement is passed Sensor easily breaks down and causes saw to enter the problem of sawing failure;In addition, by the way that the sawing final position of saw is divided into n# sawings Final position, each sawing final position detection switch is used for the detection of certain web width formed steel sawing final position, to ensure sawing final position Reliable detection, gone wrong in correspondence sawing final position detection switch and fail to examine in the case of, the control system is then used down One sawing final position detection switch is ensuring the basis of sawed-off shaped steel as current web width formed steel sawing final position detection switch On, reduce as far as possible into saw stroke, to save resource.
Brief description of the drawings
Fig. 1 is that hydraulic control system figure is sawed in section steel sawing machine forward/back provided in an embodiment of the present invention;
Fig. 2 is the program structure diagram of section steel sawing machine control system provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
Fig. 1 is that hydraulic control system figure is sawed in section steel sawing machine forward/back provided in an embodiment of the present invention, and Fig. 2 is implemented for the present invention The program structure diagram for the section steel sawing machine control system that example is provided, for convenience of description, only shows related to the embodiment of the present invention Part.
As shown in Fig. 2 NSW is " digital change-over switch " functional block, and as I=' 1 ', Y=X2, as I=' 0 ', Y= X1;NCM is " numeric ratio compared with " functional block, as X1 > X2, and QU is ' 1 ', as X1=X2, and QE is ' 1 ', as X1 < X2, QL For ' 1 ';RSR is " rest-set flip-flop preferential reset terminal R " functional block, and when it is ' 0 ' that S, which is ' 1 ', R, Q is that ' 1 ', QN is ' 0 ', works as S When for ' 1 ', R being ' 1 ', Q is that ' 0 ', QN is ' 1 ', when it is ' 0 ' that S, which is ' 0 ', R, and Q and QN keep ortho states, when S is that ' 0 ', R is ' 1 ' When, Q is that ' 0 ' QN is ' 1 ';MFP is " impulse generator " functional block, when input I becomes ' 1 ' by ' 0 ', when Q ends will export 1 Between length be T direct impulse, and Q ends output direct impulse during, input I state change is to Q ends output state No longer produce influence;ETE is " front and rear edge is set " functional block, and when input I becomes ' 1 ' by ' 0 ', it is 1 that QP ends, which only export length, The direct impulse of individual cycle period, QP ends remain ' 0 ' state under remaining state.When input I becomes ' 0 ' by ' 1 ', QN ends are only The direct impulse that length is 1 cycle period is exported, QN ends remain ' 0 ' state under remaining state, and OR is disjunction gate, and AND is " with door ", NOT is " NOT gate ".
The saw control system includes:Functional block XJJC03~XJJC37 constitutes the saw that saw feeds without gap sensors Sawing final position selecting unit, functional block XJJC01, XJJC02, XJJC38~XJJC45, XJJC49~XJJC54 and XJJC58 The saw automatic sawing, cutting control unit of~XJJC62 composition saw feeding without gap sensors, and functional block XJJC46~ XJJC50 and XJJC55~XJJC62 constitutes the manual forward/back saw control unit of saw, wherein
Need to enter depth in saw clamping limb chuck, the change of saw saw blade diameter when cutting off shaped steel based on saw saw blade (1.8~2.2 meters) and saw clamping limb chuck allow the depth (about 600 millimeters) that saw blade enters, can be whole by the sawing of saw Position is divided into n fixing point, that is, is divided into n# sawing final positions, and each fixing point at intervals of m millimeters, each fixing point is by one ten thousand Can formula impact switch detect, because the web width of H profile steel is between 200~800 millimeters, the milli of 1# sawings final position correspondence 200 Rice and following formed steel sawing final position, that is, meet 200+m* (n-1)=800 (unit:Mm), saw sawing final position selecting unit root The current cut type steel web width for sawing of the people controlled according to saw-machine active station (i.e. HMI) setting selects corresponding x# sawings whole Position, during saw is entered, passes through the universal impact switch or the universal impact switch of x+1# sawing final positions of x# sawing final positions Carry out sawing final position detection, can avoid due to universal impact switch goes wrong in use and it is excessive into saw to cause Situation;
In embodiments of the present invention, total saw final position is divided into 7 fixing points, that is, is divided into exemplified by 7 sawing final positions Capable explanation, and each fixing point is detected that 1# sawings final position corresponds to 200 millimeters and following by a universal impact switch Formed steel sawing final position, 200 millimeters of 2# sawings final position correspondence are with up to 300 millimeters of formed steel sawing final position, 3# sawings final position correspondence 300 millimeters are sawed with up to 400 millimeters of formed steel sawing final position, 400 millimeters of 4# sawings final position correspondence with up to 500 millimeters of shaped steel Final position, 500 millimeters of 5# sawings final position correspondence are cut with up to 600 millimeters of formed steel sawing final position, 600 millimeters of 6# sawings final position correspondence It is whole with up to 800 millimeters of formed steel sawing with 700 millimeters of up to 700 millimeters of formed steel sawing final position and 7# sawings final position correspondence Position, when saw control people-machine active station (i.e. HMI) set current cut type steel web width for sawing at 200 millimeters or less When, functional block XJJC04 output ends Q could be changed into ' 1 ' state from ' 0 ' state in the saw sawing final position selecting unit, so, in saw Machine enters during saw, if 1# sawing final position universal impact switches pick up or 1# sawing final position universals impact switch failure and not Can pick up, and 2# sawing final position universal impact switches pick up when, functional block XJJC06 in the saw sawing final position selecting unit And XJJC37 output ends Q will be changed into ' 1 ' state from ' 0 ' state;When saw control people-machine active station (i.e. HMI) set it is current Cut type steel web width for sawing 200 millimeters with up to 300 millimeters when, functional block in the saw sawing final position selecting unit XJJC09 output ends Q could be changed into ' 1 ' state from ' 0 ' state, so, during saw enters saw, if 2# sawing final position universals are touched Rush open pass pick up or the failure of 2# sawing final position universals impact switch and fail to pick up and 3# sawing final position universal impact switches Pick up when, functional block XJJC11 and XJJC37 output end Q will be changed into ' 1 ' from ' 0 ' state in the saw sawing final position selecting unit State;When saw control people-machine active station (i.e. HMI) set current cut type steel web width for sawing at 300 millimeters with up to At 400 millimeters, functional block XJJC14 output ends Q could be changed into ' 1 ' state from ' 0 ' state in the saw sawing final position selecting unit, this Sample, during saw enters saw, if 3# sawing final position universal impact switches pick up or 3# sawing final position universal impact switches Fail and fail to pick up and 4# sawing final position universal impact switches pick up when, functional block in the saw sawing final position selecting unit XJJC16 and XJJC37 output ends Q will be changed into ' 1 ' state from ' 0 ' state;People-machine active station (i.e. HMI) setting controlled when saw Current cut type steel web width for sawing 400 millimeters with up to 500 millimeters when, function in the saw sawing final position selecting unit Block XJJC19 output ends Q could be changed into ' 1 ' state from ' 0 ' state, so, during saw enters saw, if 4# sawing final position universals Impact switch pick up or the failure of 4# sawing final position universals impact switch and fail to pick up and the collision of 5# sawing final positions universal is opened Pass pick up when, functional block XJJC21 and XJJC37 output end Q will be changed into from ' 0 ' state in the saw sawing final position selecting unit ' 1 ' state;When saw control people-machine active station (i.e. HMI) set current cut type steel web width for sawing more than 500 millimeters During to 600 millimeters, functional block XJJC24 output ends Q could be changed into ' 1 ' state from ' 0 ' state in the saw sawing final position selecting unit, So, during saw enters saw, if 5# sawing final position universal impact switches pick up or 5# sawing final positions universal collision open Close failure and fail to pick up and 6# sawing final position universal impact switches pick up when, function in the saw sawing final position selecting unit Block XJJC26 and XJJC37 output end Q will be changed into ' 1 ' state from ' 0 ' state;When people-machine active station (i.e. HMI) that saw is controlled is set Fixed current cut type steel web width for sawing 600 millimeters with up to 700 millimeters when, work(in the saw sawing final position selecting unit Energy block XJJC29 output ends Q could be changed into ' 1 ' state from ' 0 ' state, so, during saw enters saw, if 6# sawing final positions are omnipotent Formula impact switch pick up or the failure of 6# sawing final position universals impact switch and fail to pick up and 7# sawing final positions universal is collided Switch pick up when, functional block XJJC31 and XJJC37 output end Q will be changed into from ' 0 ' state in the saw sawing final position selecting unit ' 1 ' state;When saw control people-machine active station (i.e. HMI) set current cut type steel web width for sawing more than 700 millimeters During to 800 millimeters, functional block XJJC34 output ends Q could be changed into ' 1 ' state from ' 0 ' state in the saw sawing final position selecting unit, So, during saw enters saw, if 7# sawing final position universal impact switches pick up or 7# sawing final positions universal collision open Close failure and fail to pick up, and saw maximum feeding position (position is with 7# sawings final position at a distance of 100 millimeters) universal is collided Switch pick up when, functional block XJJC36 and XJJC37 output end Q will be changed into from ' 0 ' state in the saw sawing final position selecting unit ' 1 ' state.
For Ma Gang great H profile steel saws, in order to enter saw without using displacement transducer in saw in the case of realize saw pair The automatic sawing, cutting of different size shaped steel, there is provided saw enters to saw the saw of without gap sensors in the section steel sawing machine control program Automatic sawing, cutting control unit.Saw is in holding fix, saw main transmission and saw hydraulic and lubricating system is ready, saw folder In the case that gripping arm has been clamped and saw roller table speed is zero, saw control system sends saw automatic sawing, cutting enabling signal Afterwards, if saw in automatic running mode, saw main transmission and saw hydraulic and lubricating system fault-free, saw without tightly stopping signal And saw cooling water has been opened, then functional block XJJC39 output ends Q will be by ' 0 ' in the saw automatic sawing, cutting control unit State is changed into ' 1 ' state, functional block XJJC60 output ends Q will be changed into ' 1 ' state from ' 0 ' state, the saw enters to saw hydraulic circuit (such as Shown in figure 1 above) solenoid directional control valve (LSHF) of hydraulic control one-way valve open close control it is electric, the hydraulic control one-way valve is opened, while function Block XJJC40 output ends Q will export ' 1 ' pulse that a pulse width is M seconds (such as 2 seconds), functional block XJJC42 output ends Q ' 1 ' state will be changed into from ' 0 ' state, functional block XJJC43 output ends Y will apply one to saw forward/back saw control proportioning valve (JJKBF) Individual larger control voltage (such as 6V) makes saw quickly enter saw, during saw quickly enters saw, when saw reaches saw saw When cutting start bit or saw and quickly entering the saw time and reach M seconds, functional block XJJC42 output ends Q will be changed into ' 0 ' state from ' 1 ' state, this Sample, it is zero that functional block XJJC43 output ends Y, which saws the control voltage for controlling proportioning valve to apply to saw forward/back, and saw enters to saw hydraulic pressure Solenoid directional control valve (LSHF) dead electricity of loop hydraulic control one-way valve open close control, the hydraulic control one-way valve is closed, and saw will stop quick Enter saw operation.After saw quickly enters to saw and finished, functional block XJJC45 and XJJC49 output end Q will be changed into ' 1 ' from ' 0 ' state State, thus, functional block XJJC50 output ends Y apply an operative employee in people-machine active station to saw forward/back saw control proportioning valve The automatic sawing, cutting control voltage (such as 2V) set on (i.e. HMI) makes saw with certain speed sawing shaped steel.When saw enters saw saw When switching to up to the saw sawing final position of setting, functional block XJJC37 output ends Q will be by ' 0 ' state in saw sawing final position selecting unit It is changed into ' 1 ' state, functional block XJJC38 output ends Q in saw automatic sawing, cutting control unit will be changed into ' 1 ' state from ' 0 ' state, Functional block XJJC39, XJJC45 and XJJC49 output ends Q will be changed into ' 0 ' state from ' 1 ' state, so, functional block XJJC50 outputs It is zero that end Y, which saws the control voltage for controlling proportioning valve to apply to saw forward/back, and it is opening/closing that saw enters to saw hydraulic circuit hydraulic control one-way valve Solenoid directional control valve (LSHF) dead electricity of control, the hydraulic control one-way valve is closed, and saw will stop sawing, meanwhile, in functional block XJJC53 output ends Q will export ' 1 ' pulse of one N milliseconds (such as 300 milliseconds) so that functional block XJJC54 and XJJC60 is defeated Go out to hold Q will be changed into ' 1 ' state from ' 0 ' state, the saw enters to saw the solenoid directional control valve of hydraulic circuit hydraulic control one-way valve open close control (LSHF) obtain electric, the hydraulic control one-way valve is opened, while functional block XJJC58 output ends Q will be changed into ' 1 ' state, functional block from ' 0 ' state XJJC59 output ends Y will to saw forward/back saw control proportioning valve (JJKBF) apply an operative employee in people-machine active station (i.e. HMI what is set on) moves back saw control voltage (such as -5V), makes saw progress is fast automatic to move back saw, position is waited when saw is retreated to saw When putting, functional block XJJC51 output ends Q will be changed into ' 1 ' state, functional block XJJC54, XJJC58 and XJJC60 outputs from ' 0 ' state End Q will be changed into ' 0 ' state from ' 1 ' state, thus, and functional block XJJC59 output ends Y saws the control that control proportioning valve applies to saw forward/back Voltage processed is zero, and saw enters to saw solenoid directional control valve (LSHF) dead electricity of hydraulic circuit hydraulic control one-way valve open close control, the hydraulic control list Closed to valve, saw will stop retreating, and so far, saw automatic sawing, cutting is finished.
For the ease of saw maintenance and accident treatment, saw is provided with the section steel sawing machine SAWING CONTROL program manual Control unit is sawed in forward/back.Stop signal and saw is not in most pit saw without tight in saw hydraulic pressure and lubricating system fault-free, saw In the case of cutting position, when operative employee sends saw under manual mode and enters saw instruction manually, the saw manual forward/back saw control Functional block XJJC48, XJJC49 and XJJC60 output ends Q will be changed into ' 1 ' state from ' 0 ' state in unit, thus, and saw hydraulic pressure is returned The solenoid directional control valve (LSHF) of road hydraulic control one-way valve open close control obtains electric, and the hydraulic control one-way valve is opened, meanwhile, functional block XJJC62 output ends Y to saw forward/back saw control proportioning valve apply one with automatic sawing, cutting identical control voltage, make saw with Automatic sawing, cutting speed carries out entering saw operation manually, is disappeared until saw enters saw instruction manually.In saw hydraulic pressure and lubricating system Fault-free, saw stop signal and saw is not in the case of maximum going-back position without tight, and operative employee sends under manual mode When saw moves back saw instruction manually, functional block XJJC57, XJJC58 and XJJC60 are defeated in the manual forward/back saw control unit of the saw Go out to hold Q will be changed into ' 1 ' state from ' 0 ' state, thus, the solenoid directional control valve of saw hydraulic circuit hydraulic control one-way valve open close control (LSHF) obtain electric, the hydraulic control one-way valve is opened, meanwhile, functional block XJJC61 output ends Y is applied to saw forward/back saw control proportioning valve Plus one moved back saw identical control voltage with automatic, saw is set to carry out moving back saw operation manually with automatic saw speed of moving back, until saw Saw instruction is moved back manually to disappear.
The embodiment of the present invention is detected by universal impact switch to sawing final position, is solved because linear displacement is passed Sensor easily breaks down and causes saw to enter the problem of sawing failure;In addition, by the way that the sawing final position of saw is divided into n# sawings Final position, each sawing final position detection switch is used for the detection of certain web width formed steel sawing final position, to ensure sawing final position Reliable detection, gone wrong in correspondence sawing final position detection switch and fail to examine in the case of, the control system is then used down One sawing final position detection switch is ensuring the basis of sawed-off shaped steel as current web width formed steel sawing final position detection switch On, reduce as far as possible into saw stroke, to save resource.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.

Claims (1)

1. a kind of saw control system based on universal impact switch, it is characterised in that the saw control system includes:Work( Energy block XJJC03~XJJC37 constitutes the saw sawing final position selecting unit that saw feeds without gap sensors;Functional block XJJC01, XJJC02, XJJC38~XJJC45, XJJC49~XJJC54 and XJJC58~XJJC62 constitute saw feeding without position The saw automatic sawing, cutting control unit of displacement sensor;And functional block XJJC46~XJJC50 and XJJC55~XJJC62 is constituted The manual forward/back saw control unit of saw, wherein,
Based on saw saw blade cut off shaped steel when need enter saw clamping limb chuck in depth, the change of saw saw blade diameter and Saw clamping limb chuck allows the depth that saw blade enters, and the sawing final position of saw is divided into n fixing point, that is, is divided into n# sawings whole Position, and each fixing point at intervals of m millimeters, each fixing point is detected by a universal impact switch, the web of H profile steel Width is between 200~800 millimeters, and 1# sawings final position correspondence 200 millimeters and following formed steel sawing final position meet 200+m* (n-1)=800, the saw sawing final position selecting unit is according to the current for sawing of the people when saw control-machine active station setting Cut type steel web width selects corresponding x# sawings final position, during saw is entered, and is opened by the universal collision of x# sawing final positions Close or the universal impact switch of x+1# sawing final positions carries out sawing final position detection;
Saw is in holding fix, saw main transmission and saw hydraulic and lubricating system is ready, saw clamping limb has been clamped simultaneously And in the case that saw roller table speed is zero, saw control system is sent after saw automatic sawing, cutting enabling signal, if saw is certainly The dynamic method of operation, saw main transmission and saw hydraulic and lubricating system fault-free, saw are without tightly stopping signal and saw saw blade Cooling water has been opened, and the saw automatic sawing, cutting control unit makes saw enter to saw hydraulic circuit hydraulic control one-way valve open close control Solenoid directional control valve obtains electric, and the hydraulic control one-way valve is opened, meanwhile, one pulse width of output is ' 1 ' pulse of M seconds, enter to saw/ Moving back saw control one big control voltage of proportioning valve application makes saw quickly enter saw, during saw quickly enters saw, works as saw When machine reaches saw sawing start bit or saw and quickly enters the saw time and reach M second, control proportioning valve application is sawed to saw forward/back Control voltage is zero, and saw enters to saw the solenoid directional control valve dead electricity of hydraulic circuit hydraulic control one-way valve open close control, the fluid-control one-way Valve is closed, and saw will stop quickly entering saw operation;Apply one in people-machine operation to saw forward/back saw control proportioning valve afterwards The automatic sawing, cutting control voltage set on standing makes saw with certain speed sawing shaped steel, and setting is reached when saw enters sawing During saw sawing final position, saw automatic sawing, cutting control unit feeds back to saw forward/back based on saw sawing final position selecting unit The control voltage that saw controls proportioning valve to apply is zero, and saw enters to saw the electromagnetic switch of hydraulic circuit hydraulic control one-way valve open close control Valve dead electricity, the hydraulic control one-way valve is closed, and saw will stop sawing, afterwards, make again saw enter to saw hydraulic circuit hydraulic control one-way valve open/ The solenoid directional control valve for closing control obtains electric, and the hydraulic control one-way valve is opened, to saw forward/back saw control proportioning valve apply one What is set on people-machine active station moves back saw control voltage, makes saw progress is fast automatic to move back saw, and position is waited when saw is retreated to saw When putting, to saw forward/back saw control proportioning valve application control voltage be zero, saw enter to saw hydraulic circuit hydraulic control one-way valve open/ The solenoid directional control valve dead electricity of control is closed, the hydraulic control one-way valve is closed, saw will stop retreating;
In saw hydraulic pressure and lubricating system fault-free, saw without tightly stopping signal and saw is not in the situation of maximum sawing position Under, when saw is sent under manual mode entering saw instruction manually, the manual forward/back saw control unit of the saw causes saw hydraulic pressure The solenoid directional control valve of loop hydraulic control one-way valve open close control obtains electric, and the hydraulic control one-way valve is opened, meanwhile, give saw forward/back saw Control proportioning valve to apply one and automatic sawing, cutting identical control voltage, saw is entered saw manually with the progress of automatic sawing, cutting speed and grasp Make, disappeared until saw enters saw instruction manually;Sent under manual mode saw move back manually saw instruction when, the manual forward/back of saw Saw control unit causes the solenoid directional control valve of saw hydraulic circuit hydraulic control one-way valve open close control to obtain electric, the hydraulic control one-way valve Open, meanwhile, control proportioning valve application one to move back saw identical control voltage with automatic to saw forward/back saw, make saw with certainly Dynamic saw speed of moving back carries out moving back saw operation manually, is disappeared until saw moves back saw instruction manually.
CN201710530764.5A 2017-07-03 2017-07-03 Saw control system based on universal impact switch Active CN107138801B (en)

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CN110315140A (en) * 2019-07-25 2019-10-11 马鞍山钢铁股份有限公司 A kind of control method of section steel sawing machine angle steel saw
CN110315139A (en) * 2019-07-25 2019-10-11 马鞍山钢铁股份有限公司 A kind of monitoring system of section steel sawing machine upper saddle bearing wheels bearing deterioration state
CN112809691A (en) * 2017-11-30 2021-05-18 马鞍山钢铁股份有限公司 Control method for clamping arm of profile steel sawing machine

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CN204584866U (en) * 2015-04-30 2015-08-26 浙江晨龙锯床股份有限公司 A kind of section bar automatic sawing, cutting control system
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CN201410590Y (en) * 2009-06-19 2010-02-24 攀枝花新钢钒股份有限公司 Railroad sawing control device
CN201625982U (en) * 2010-03-30 2010-11-10 杭州电子科技大学 Intelligent mobile mechanical arm control system
CN202877644U (en) * 2012-09-20 2013-04-17 赵天喜 Safety protective device of sawing machine
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Publication number Priority date Publication date Assignee Title
CN112809691A (en) * 2017-11-30 2021-05-18 马鞍山钢铁股份有限公司 Control method for clamping arm of profile steel sawing machine
CN110315140A (en) * 2019-07-25 2019-10-11 马鞍山钢铁股份有限公司 A kind of control method of section steel sawing machine angle steel saw
CN110315139A (en) * 2019-07-25 2019-10-11 马鞍山钢铁股份有限公司 A kind of monitoring system of section steel sawing machine upper saddle bearing wheels bearing deterioration state

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