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.
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.