CN104625214A - Method and device for controlling fly cutter cut-off machine and fly cutter cut-off machine system - Google Patents

Abstract

The invention relates to a method and device for controlling a fly cutter cut-off machine and a fly cutter cut-off machine system. The controlling method includes the steps that when a blade is used for cutting a flat tube, the blade is controlled to rotate at a first rotating speed n1; the blade is controlled to rotate at a second rotating speed n2 at the interval of two times of cutting. According to the method for controlling the fly cutter cut-off machine, a fly cutter is controlled to cut at a synchronous cut-off speed, and the perpendicularity of the cutting face of the flat tube is guaranteed. Meanwhile, the fly cutter is kept to make uniform rotation movement at a speed similar to the synchronous cutting speed in the cutting waiting process, so that the acceleration and deceleration capacity need of a driving motor is lowered, the impact of speed change on the driving motor is reduced to the maximum degree, the cut-off sizing accuracy and the cutting opening perpendicularity are guaranteed, and motor damage and even more serious potential safety hazards caused by too quick acceleration and deceleration of the motor are avoided.

Description

The control method of fly cutter cutting machine, control device and fly cutter cutting machine system

Technical field

The present invention relates to a kind of control method of fly cutter cutting machine, control device and fly cutter cutting machine system, particularly relate to a kind of control method of safe and reliable fly cutter cutting machine, control device and fly cutter cutting machine system.

Background technology

Metal and the flat tubing of metal alloy material adopt fly cutter cutting machine to cut usually.Fly cutter cutting machine generally includes drive motors and cutter, and drive motors drives described cutter to rotate, and cuts flat tubing.

At present, fly cutter cutting machine controls it by a control device and cuts tubing.Existing fly cutter cutting machine control device comprises a motion controller and a fly cutter motor driver, and described motion controller and described fly cutter motor driver are connected by cable and carry out data transmission.During cutting, described motion control device obtains fly cutter position coder signal and meter wheel code device signal, drive motors is started according to when pre-set programs and cutting, the principle of drive motors is stopped to carry out computing to the signal received when not cutting, draw speed curve of output, and convert this speed curve of output to analog signals by D/A and be sent on described fly cutter motor driver, realize the speeds control to fly cutter drive motors by described fly cutter motor driver, cut.

Because control device relies on analog information transfer signal, cutting accuracy is often limited by digital-to-analogue conversion or A/D conversion accuracy, simultaneously real-time and antijamming capability also poor; Motor speed gap is comparatively large, easily causes damage to motor, and affects cutting accuracy.

Summary of the invention

On the one hand, the control method that a kind of fly cutter cutting machine is provided of the present invention, described fly cutter cutting machine is for cutting flat tubing, and it comprises: drive motors, is provided with driving shaft, and described driving shaft is provided with gear; Fly cutter, comprise strip tool arm and the blade being fixed on described tool arm one end, the center of described tool arm is located on described driving shaft, with described drive shaft turns; Bent wheel, is positioned at the side of described driving shaft, is connected by described gear with described driving shaft, and with described drive shaft turns, the reference radius of described song wheel is n times of the reference radius of described gear, and n is the even number of non-zero; Connecting rod, its one end and described song are taken turns and are rotationally connected, and the center of circle that tie point is not taken turns with described song overlaps, and the other end extends to the side away from described driving shaft; Tubing die sleeve, itself and described song are taken turns and are oppositely arranged and have spacing, it is provided with spacing groove, described flat tubing is located in described spacing groove, with described spacing groove matched in clearance, when the described flat tubing of described fly cutter cutting, described tubing die sleeve is connected with one end that described connecting rod is taken turns away from described song, and when described fly cutter does not cut described flat tubing, described tubing die sleeve is away from described connecting rod; Described control method comprises:

When described in described blade cuts during flat tubing, control described blade with the first rotating speed n ₁rotate; When gap in cutting twice, control described blade with the second rotating speed n ₂rotate;

The first described rotating speed $n_1=\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}*\frac{V}{\tan \mathrm{\θ}*H};$

The second described rotating speed $n_2=[K-\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}]*\frac{V}{L-\tan \mathrm{\θ}*H};$

Wherein: K is the multiple of n, and be closest to K ₁the multiple of n, h is the height of described flat tubing, and V is the linear velocity of described flat tubing, and θ is the angle of the plane of rotation of described blade and the vertical direction vertical line of described flat tubing, and L is the length of the described flat tubing under will cutting, and R is the radius of gyration of described blade.

The control method of another kind of fly cutter cutting machine provided by the invention, described fly cutter cutting machine is for cutting flat tubing, and it comprises: drive motors, is provided with driving shaft, and described driving shaft is provided with gear; Fly cutter, comprise strip tool arm and the blade being fixed on described tool arm one end, the center of described tool arm is located on described driving shaft, with described drive shaft turns; Bent wheel, is positioned at the side of described driving shaft, is connected by described gear with described driving shaft, and with described drive shaft turns, the reference radius of described song wheel is n times of the reference radius of described gear, and n is the even number of non-zero; Connecting rod, its one end and described song are taken turns and are rotationally connected, and the center of circle that tie point is not taken turns with described song overlaps, and the other end extends to the side away from described driving shaft; Tubing die sleeve, itself and described song are taken turns and are oppositely arranged and have spacing, and it is provided with spacing groove, and described flat tubing is located in described spacing groove, with described spacing groove matched in clearance; First electromagnet, the one end of taking turns away from described song with described connecting rod is connected; And second electromagnet, be positioned at the side of described tubing die sleeve away from described first electromagnet, be oppositely arranged with described first electromagnet, for adsorbing and locking described tubing die sleeve, and make it away from the rotary track of described fly cutter; Described tubing die sleeve, by can being made by the material that electromagnet adsorbs, be connected with described connecting rod by described first magnet, the flat tubing be located on described tubing die sleeve is made to be positioned at the cutting zone of described blade, described control method comprises: when described in described blade cuts during flat tubing, control described blade with the first rotating speed n ₁rotate, and control tubing die sleeve described in described first locked with electromagnet; When gap in cutting twice, control described blade with the second rotating speed n ₂rotate, and control tubing die sleeve described in described second locked with electromagnet;

The first described rotating speed $n_1=\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}*\frac{V}{\tan \mathrm{\θ}*H};$

The second described rotating speed $n_2=[K-\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}]*\frac{V}{L-\tan \mathrm{\θ}*H};$

Wherein: K is the multiple of n, and be the multiple of the n closest to K1, h is the height of described flat tubing, and V is the linear velocity of described flat tubing, and θ is the angle of the plane of rotation of described blade and the vertical direction vertical line of described flat tubing, and L is the length of the described flat tubing under will cutting, and R is the radius of gyration of described blade.

Preferably, described first electromagnet of described control fixes described tubing die sleeve, comprise: when described connecting rod rotates to the circle being about to carry out cutting, with described connecting rod away from described driving shaft and for original position when being horizontal, the angle that described connecting rod turns over is 2 π-β ₁time, drive described first electromagnet, described first electromagnet is adsorbed and locks described tubing die sleeve;

${\mathrm{\β}}_1=\arccos \left[\frac{{R_s}^2+{(R_s+L_s-L_c)}^2-{L_s}^2}{2R_s(R_s+L_s-L_c)}\right]$

Wherein: R _sfor the radius of described song wheel, L _sfor the length of described connecting rod, L _cfor the maximum air gap of the effective action power of described first electromagnet and described second electromagnet.

Preferably, described second electromagnet of described control fixes described tubing die sleeve, comprising:

When described connecting rod rotates to the first lap after having cut, with described connecting rod away from described driving shaft and for original position when being horizontal, when the angle that described connecting rod rotates through is π, control described first electromagnet dead electricity; When described connecting rod rotates to the first lap after having cut, with described connecting rod away from described driving shaft and for original position when being horizontal, the angle that described connecting rod rotates through is 2 π-β ₁time, drive described second electromagnet, described second electromagnet is adsorbed and locks described tubing die sleeve;

Wherein: R _sfor the radius of described song wheel, L _sfor the length of described connecting rod, L _cfor the maximum air gap of the effective action power of described first electromagnet and described second electromagnet.

Further, described control method also comprised before implementation: the angle theta value measuring the plane of rotation of described blade and the vertical direction vertical line of described flat tubing.

On the other hand, the invention provides a kind of control device of fly cutter cutting machine, described fly cutter cutting machine is for cutting off flat tubing, and described control device comprises: mainboard, is provided with communication bus; Input terminal, for inputting data; Data acquisition and processing module, be located on described mainboard, for gathering the data of described input terminal input, and converts described data to the signal of telecommunication; Control module, is located on described mainboard, carries out data transmission by described communication bus and described data acquisition and processing module, for receiving the described signal of telecommunication, and by pre-set programs, the described signal of telecommunication is processed, obtain drived control order, export described drived control order; Fly cutter motor drive module, is located on described mainboard, carries out data transmission by described communication bus and described control module, for receiving described control command, and according to fly cutter cutting machine described in described drived control command driven.

Preferably, described input terminal, comprising: meter wheel encoder, for measuring linear velocity and the length of described flat tubing; Position coder, for measuring speed and the position of the fly cutter of described fly cutter cutting machine; Manual input device, for inputting parameter preset.

Further, described input terminal, also comprises: obliquity sensor, for measuring the fly cutter plane of rotation inclination angle of described fly cutter cutting machine.

The control device of another kind of fly cutter cutting machine provided by the invention, described fly cutter cutting machine is for cutting off flat tubing, and it comprises: drive motors, is provided with driving shaft, and described driving shaft is provided with gear; Fly cutter, comprise strip tool arm and the blade being fixed on described tool arm one end, the center of described tool arm is located on described driving shaft, with described drive shaft turns; Bent wheel, is positioned at the side of described driving shaft, is connected by described gear with described driving shaft, and with described drive shaft turns, the reference radius of described song wheel is n times of the reference radius of described gear, and n is the even number of non-zero; Connecting rod, its one end and described song are taken turns and are rotationally connected, and the center of circle that tie point is not taken turns with described song overlaps, and the other end extends to the side away from described turning cylinder; Tubing die sleeve, itself and described song are taken turns and are oppositely arranged and have spacing, and it is provided with spacing groove, and described flat tubing is located in described spacing groove, with described spacing groove matched in clearance; First electromagnet, the one end of taking turns away from described song with described connecting rod is connected; And second electromagnet, be positioned at the side of described tubing die sleeve away from described first electromagnet, be oppositely arranged with described first electromagnet, for fixing described tubing die sleeve, and make it away from the rotary track of described fly cutter; Described tubing die sleeve, by can being made by the material that electromagnet adsorbs, being connected with described connecting rod by described first magnet, making the flat tubing be located on described tubing die sleeve be positioned at the cutting zone of described blade, described control device comprises: mainboard, is provided with communication bus; Input terminal; Data acquisition and processing module, be located on described mainboard, for gathering the data of described input terminal input, and converts described data to the signal of telecommunication; Control module, be located on described mainboard, data transmission is carried out by described communication bus and described data acquisition and processing module, for receiving the described signal of telecommunication, and by pre-set programs, the described signal of telecommunication is processed, obtain the first drived control order and the second drived control order, and export described first drived control order and the second drived control order; Fly cutter motor drive module, is located on described mainboard, carries out data transmission by described communication bus and described control module, for receiving described first drived control order, and according to fly cutter cutting machine described in described first drived control command driven; And solenoid actuated module, for receiving described second drived control order, and according to the first electromagnet or described second electromagnet described in described second drived control command driven; Described input terminal comprises: meter wheel encoder, is connected with described flat tubing, for measuring linear velocity and the length of described flat tubing; Position coder, is connected with described driving shaft, for measuring speed and the position of the fly cutter of described fly cutter cutting machine; Manual input device, for inputting parameter preset.

Another aspect, the invention provides a kind of fly cutter cutting system, and it comprises fly cutter cutting machine and fly cutter cutting machine control device: described fly cutter cutting machine is for cutting off flat tubing, and it comprises: drive motors, is provided with driving shaft, and described driving shaft is provided with gear; Fly cutter, comprise strip tool arm and the blade being fixed on described tool arm one end, the center of described tool arm is located on described driving shaft, with described drive shaft turns; Bent wheel, is positioned at the side of described driving shaft, is connected by described gear with described driving shaft, and with described drive shaft turns, the reference radius of described song wheel is n times of the reference radius of described gear, and n is the even number of non-zero; Connecting rod, its one end and described song are taken turns and are rotationally connected, and the center of circle that tie point is not taken turns with described song overlaps, and the other end extends to the side away from described driving shaft; Tubing die sleeve, itself and described song are taken turns and are oppositely arranged and have spacing, and it is provided with spacing groove, and described flat tubing is located in described spacing groove, with described spacing groove matched in clearance; First electromagnet, the one end of taking turns away from described song with described connecting rod is connected; And second electromagnet, be positioned at the side of described tubing die sleeve away from described first electromagnet, be oppositely arranged with described first electromagnet, for fixing described tubing die sleeve, and make it away from the rotary track of described fly cutter; Described tubing die sleeve, by can being made by the material that electromagnet adsorbs, is connected with described connecting rod by described first magnet, makes the flat tubing be located on described tubing die sleeve be positioned at the cutting zone of described blade; Described fly cutter cutting machine control device comprises: mainboard, is provided with communication bus; Input terminal; Data acquisition and processing module, be located on described mainboard, for gathering the data of described input terminal input, and converts described data to the signal of telecommunication; Control module, be located on described mainboard, data transmission is carried out by described communication bus and described data acquisition and processing module, for receiving the described signal of telecommunication, and by pre-set programs, the described signal of telecommunication is processed, obtain the first drived control order and the second drived control order, and export described first drived control order and the second drived control order; Fly cutter motor drive module, is located on described mainboard, carries out data transmission by described communication bus and described control module, for receiving described first drived control order, and according to fly cutter cutting machine described in described first drived control command driven; And solenoid actuated module, for receiving described second drived control order, and according to the first electromagnet or described second electromagnet described in described second drived control command driven; Described input terminal comprises: meter wheel encoder, is connected with described flat tubing, for measuring linear velocity and the length of described flat tubing; Position coder, is connected with described driving shaft, for measuring speed and the position of the fly cutter of described fly cutter cutting machine; And manual input device, for inputting parameter preset.

By technique scheme, the control method of fly cutter cutting machine of the present invention, control device and fly cutter cutting machine system at least have following advantages:

The control method of the fly cutter cutting machine that the embodiment of the present invention provides is cut with turned off in synchronization speed by controlling fly cutter, ensure that the perpendicularity of flat tubing cut surface, simultaneously, the speed uniform rotation with synchronous cutting similar rate is kept when waiting and cutting by making fly cutter, reduce drive motors acceleration and deceleration ability need, reduce the impact of velocity variations to drive motors to greatest extent, both ensure that and cut off sizing accuracy and otch perpendicularity, avoided again the potential safety hazard that the too fast motor damage caused of motor acceleration and deceleration is even even more serious;

The control device of the fly cutter cutting machine that the embodiment of the present invention provides, by data acquisition and processing module, control module and fly cutter motor drive module are integrated on mainboard, its communication bus by mainboard is made to carry out data transmission, greatly reduce the volume of control device, improve data transmission bauds and the antijamming capability of control device, its active safety is improved greatly, simultaneously, system works alone, and can carry out upgrading fast when production line front-end process does not make any changes to production line.

Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of description, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.

Accompanying drawing explanation

Fig. 1 is the structural representation of the fly cutter cutting machine that provides of the embodiment of the present invention and control device thereof;

Fig. 2 is the partial structurtes schematic diagram of the fly cutter cutting machine that the embodiment of the present invention provides;

Fig. 3 is the control principle schematic diagram of the fly cutter cutting machine that the embodiment of the present invention provides;

Fig. 4 is another partial structurtes schematic diagram of the fly cutter cutting machine that the embodiment of the present invention provides.

Detailed description of the invention

For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to control method and detailed description of the invention, structure, feature and effect thereof of the fly cutter cutting machine proposed according to the present invention, be described in detail as follows.In the following description, the not necessarily same embodiment that different " embodiment " or " embodiment " refers to.In addition, special characteristic, structure or feature in one or more embodiment can be combined by any suitable form.

Embodiment 1

The control method of a kind of fly cutter cutting machine that the embodiment of the present invention proposes, as shown in Figure 1, the fly cutter cutting machine 20 that the method controls is for cutting flat tubing, and it comprises drive motors 1, fly cutter 2, bent wheel 3, connecting rod 4 and tubing die sleeve 5.Drive motors 1 is provided with driving shaft 11, and driving shaft 11 is provided with gear 12, for driving fly cutter 2 and bent wheel 3, fly cutter 2 comprises tool arm 21 and blade 22, and tool arm 21 is strip structure, and blade 22 is arranged on an end face of tool arm 21, and its knife edge is towards its direction of motion, and the center of tool arm 21 is located on driving shaft 11, rotates with driving shaft 11, bent wheel 3 is positioned at the side of driving shaft 11, is connected, and rotates with driving shaft 11 by being engaged with gear 12 with driving shaft 11, and as shown in Figure 2, the reference radius of bent wheel 3 is n times of the reference radius of gear 12, and n is the even number of non-zero, its one end of connecting rod 4 is taken turns 3 with song and is rotationally connected by turning cylinder, and the center of circle that tie point does not take turns 3 with song overlaps, and the other end extends to the side away from driving shaft 11, tubing die sleeve 5 and bent take turns 3 be oppositely arranged and and song take turns 3 between there is spacing, tubing die sleeve 5 is provided with spacing groove 51, flat tubing 10 is located in spacing groove 51, and be matched in clearance with spacing groove 51, thus spacing groove 51 can be passed through smoothly, when fly cutter 2 cuts flat tubing 10, tubing die sleeve 5 is connected with one end that connecting rod 4 takes turns 3 away from song by the mode such as bonding or be threaded, when fly cutter 2 does not cut flat tubing 10, tubing die sleeve 5 departs from connecting rod 4 and away from connecting rod 4, fly cutter rotary area is departed to make the flat tubing 10 be located in its spacing groove 51.

The control method of described fly cutter cutting machine comprises:

When blade 22 cuts flat tubing 10, control blade 22 with the first rotating speed n ₁rotate;

The first described rotating speed $n_1=\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}*\frac{V}{\tan \mathrm{\θ}*H};$

Wherein: see Fig. 3, H is the height of flat tubing 10, V is the linear velocity of flat tubing 10, θ is the angle of the vertical direction vertical line of blade 22 plane of rotation and flat tubing 10, R is the radius of gyration of blade 22, distance between two points on the circle that the synchro angle α of S corresponding to the circumference of tool arm 21 operation in blade 22 cutting-off process is corresponding;

With fly cutter from bottom to top, cut off the flat tubing 10 moved right for speed V, see Fig. 3, from the downside that the knife edge of blade 22 contacts flat tubing 10, just cut to blade 22 and worn flat tubing and terminate:

The synchronous shift of flat tubing 10: L ₁=tan θ * H;

The synchronous arc spacing of circumference:

$S=\frac{H}{\cos \mathrm{\θ}};$

Circumference synchro angle:

$\mathrm{\α}=2*\arcsin \left(\frac{s}{2R}\right)=2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right);$

α be from be cut to and cut off the flat tubing fly cutter angle of circumference of passing by, can determine whether fly cutter is in the position of cutting flat tubing according to the relative position of α and fly cutter and tubing;

The turned off in synchronization speed of blade 22:

$n_1=\frac{\mathrm{\α}}{360}*\frac{V}{L_1}=\frac{\mathrm{\α}}{360}*\frac{V}{\tan \mathrm{\θ}*H}$

Therefore, when blade 22 cuts flat tubing 10, control blade 22 with the first rotating speed n ₁during rotation, can ensure that blade 22 is the downside contacting flat tubing 10 from its knife edge, just cut to blade 22 and worn in time that flat tubing terminates, cut off flat tubing simultaneously, ensure that the perpendicularity of cut surface;

Aforesaid operations can pass through Artificial Control, automatically control preferably by control device, when using control device automatically to control, by using meter wheel encoder, measure linear velocity V and the length of flat tubing 10, use location encoder measures speed and the position of fly cutter 2, pass through manual input device, input the height H of flat tubing 10, the angle theta of the plane of rotation of blade 22 and the vertical direction vertical line of flat tubing 10, the parameter presets such as the radius of gyration R of blade 22, can control its velocity of rotation when blade 22 arrives cut point be n ₁;

When gap in cutting twice, control blade 22 with the second rotating speed n ₂rotate;

The second described rotating speed $n_2=[K-\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}]*\frac{V}{L-\tan \mathrm{\θ}*H};$

Wherein: K is the multiple of n, and be the multiple of the n closest to K1, h is the height of flat tubing 10, V is the linear velocity of flat tubing 10, and θ is the angle of the vertical direction vertical line of blade 22 plane of rotation and flat tubing 10, and its number of degrees are generally between 2-5 degree, L is the length of the flat tubing 10 under will cutting, and R is the radius of gyration of blade 22;

The theory of fly cutter 2 in the gap of cutting twice runs the number of turns

Then get closest to K ₁the multiple of n as the operation number of turns of fly cutter 2 in the gap of cutting twice;

In this number of turns, the average speed of fly cutter 20 when marquis cuts is:

$n_2=(K-\frac{\mathrm{\α}}{360})*\frac{V}{L-\tan \mathrm{\θ}*H}$

Aforesaid operations can pass through Artificial Control, automatically control preferably by control device, when using control device automatically to control, by using meter wheel encoder, measure linear velocity V and the length of flat tubing 10, use location encoder measures speed and the position of fly cutter 2, pass through manual input device, input the height H of flat tubing 10, the angle theta of the plane of rotation of blade 22 and the vertical direction vertical line of flat tubing 10, the parameter presets such as the radius of gyration R of blade 22, can control blade 22 velocity of rotation when the gap of cutting twice is n ₂;

When flat tubing 10 moves with speed V, the every Cutting Length of fly cutter 2 is one section of flat tubing of L is a cutting cycle.Reference radius due to song wheel 3 is n times of the reference radius of gear 12, therefore, driving shaft 11 rotates n week, namely fly cutter 2 rotates n week bent wheel 3 rotation 1 week, by make fly cutter 2 rotate within a cutting cycle n doubly a few, ensure that bent wheel 3 can rotation integer numbers circle within a cutting cycle, thus ensure to take turns the connecting rods 4 that 3 bias are connected can move back and forth one week within a cutting cycle, so that tubing die sleeve 5 can be in optimal position within each cutting cycle with bent.

The control method of the fly cutter cutting machine that the embodiment of the present invention provides is cut with turned off in synchronization speed by controlling fly cutter, ensure that the perpendicularity of flat tubing cut surface, simultaneously, the speed uniform rotation with synchronous cutting similar rate is kept when waiting and cutting by making fly cutter, reduce drive motors acceleration and deceleration ability need, reduce the impact of velocity variations to drive motors to greatest extent, not only ensure that and cut off sizing accuracy and otch perpendicularity but also the potential safety hazard avoiding the too fast motor damage caused of motor acceleration and deceleration even even more serious.

Embodiment 2

See Fig. 1, embodiments provide a kind of control method of fly cutter cutting machine, the fly cutter cutting machine 20 that the method controls, compared with the fly cutter cutting machine of embodiment 1, also comprise the first electromagnet 6 and the second electromagnet 7, and tubing die sleeve 5 is by can being made by the material that electromagnet adsorbs.One end that first electromagnet 6 and connecting rod 4 take turns 3 away from song is connected; Second electromagnet 7 is positioned at the side of tubing die sleeve 5 away from described first electromagnet 6, is oppositely arranged with the first electromagnet 6, for adsorbing and locking tubing die sleeve 5, and makes it away from fly cutter 2; Tubing die sleeve 5 is connected with connecting rod 4 by described first magnet 6, makes the flat tubing 10 be located on tubing die sleeve 5 be positioned at the cutting zone of blade 22.

The control method of described fly cutter cutting machine comprises:

When blade 22 cuts described flat tubing, control blade 22 with the first rotating speed n ₁rotate, and control the first electromagnet 6 and fix tubing die sleeve 5;

When gap in cutting twice, control blade 22 with the second rotating speed n ₂rotate, and control the second electromagnet 7 and fix tubing die sleeve 5;

The first described rotating speed $n_1=\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}*\frac{V}{\tan \mathrm{\θ}*H};$

The second described rotating speed $n_2=[K-\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}]*\frac{V}{L-\tan \mathrm{\θ}*H};$

Wherein: K is the multiple of n, and be the multiple of the n closest to K1, h is the height of described flat tubing, and V is the linear velocity of described flat tubing, and θ is the angle of the vertical direction vertical line of blade 22 plane of rotation and described flat tubing, and L is the length of the described flat tubing under will cutting, and R is the radius of gyration of blade 22.

Aforesaid operations can pass through Artificial Control, automatically control preferably by control device, when using control device automatically to control, by using meter wheel encoder, measure linear velocity V and the length of flat tubing 10, use location encoder measures speed and the position of fly cutter 2, pass through manual input device, input the height H of flat tubing 10, the angle theta of the plane of rotation of blade 22 and the vertical direction vertical line of flat tubing 10, the parameter presets such as the radius of gyration R of blade 22, can control its velocity of rotation when blade 22 arrives cut point be n ₁, drive the first electromagnet 6 work to adsorb and lock tubing die sleeve 5 simultaneously; Also can control blade 22 velocity of rotation when the gap of cutting twice is n ₂, drive the second electromagnet 7 to adsorb and to lock tubing die sleeve 5 simultaneously.

The control method of the fly cutter cutting machine that the present embodiment provides, by using locked with electromagnet tubing die sleeve, the movement of described tubing die sleeve is realized by switching the first electromagnet and the second electromagnet, facilitate locking and the movement of tubing die sleeve, and can automatically control, improve cutting efficiency and cut off sizing accuracy and otch perpendicularity.

Preferably, described first electromagnet of described control fixes described tubing die sleeve, specifically comprises:

See Fig. 4, when connecting rod 4 rotates to the circle being about to carry out cutting, with connecting rod 4 away from driving shaft 11 and for original position when being horizontal, the angle that connecting rod 4 turns over is 2 π-β ₁time, drive the first electromagnet 6, make the first electromagnet 6 adsorb and lock tubing die sleeve 5;

${\mathrm{\β}}_1=\arccos \left[\frac{{R_s}^2+{(R_s+L_s-L_c)}^2-{L_s}^2}{2R_s(R_s+L_s-L_c)}\right]$

Wherein: R _sfor the radius of described song wheel, L _sfor the length of described connecting rod, L _cfor the maximum air gap of the effective action power of described first electromagnet and described second electromagnet.

When arriving the maximum air gap of the effective action power of the first electromagnet 6 apart from the distance of tubing die sleeve 5 from the first electromagnet 6, start to drive the first electromagnet 6, it can produce the effective action power to tubing die sleeve 5, can adsorb tubing die sleeve 5, thus locking tubing die sleeve 5.

Preferably, described second electromagnet of described control fixes described tubing die sleeve, comprising:

When connecting rod 4 rotates to the first lap after having cut, with connecting rod 4 away from driving shaft 11 and for original position when being horizontal, when the angle that connecting rod 4 rotates through is π, control the first electromagnet 6 dead electricity;

When connecting rod 4 rotates to the first lap after having cut, with connecting rod 4 away from driving shaft 11 and for original position when being horizontal, the angle that described connecting rod rotates through is 2 π-β ₁time, drive the second electromagnet 7, make the second electromagnet 7 adsorb and lock tubing die sleeve 5;

Wherein: R _sfor the radius of described song wheel, L _sfor the length of described connecting rod, L _cfor the maximum air gap of the effective action power of described first electromagnet and described second electromagnet.

Give the first electromagnet 6 dead electricity from the distance farthest between the first electromagnet 6 and tubing die sleeve 5, the first electromagnet 6 can be made to lose absorption affinity to tubing die sleeve 5 fast, be conducive to the switching carrying out the first electromagnet 6 and the second electromagnet 7 fast and effectively; When arriving the maximum air gap of the effective action power of the second electromagnet 7 apart from the distance of tubing die sleeve 5 from the second electromagnet 7, start to drive the second electromagnet 7, it can produce the effective action power to tubing die sleeve 5, can adsorb tubing die sleeve 5, thus locking tubing die sleeve 5.

Preferably, described control method also comprised before implementation: the angle theta value measuring the plane of rotation of described blade and the vertical direction vertical line of described flat tubing.

This step can realize by using obliquity sensor, and obliquity sensor is preferably mounted at and flies on the complete machine pedestal of cutting machine, and the angle of the vertical normal of described pedestal place plane and the vertical direction vertical line of described flat tubing is θ.

By determining angle theta value before cutting, be conducive to the quality of fit ensureing fly cutter, the first electromagnet and the second electromagnet, and the smooth switching of the first electromagnet and the second electromagnet, thus further increase cutting accuracy.

Embodiment 3

See Fig. 1, embodiments provide a kind of control device of fly cutter cutting machine, described fly cutter cutting machine is for cutting off flat tubing, and described control device comprises mainboard 301, input terminal, data acquisition and processing module 302, control module 303 and fly cutter motor drive module 304.Mainboard 301 is provided with communication bus; Input terminal can be encoder, sensor, manual input device etc., for inputting data; Data acquisition and processing module 302 are located on mainboard 301, for gathering the data of described input terminal input, and convert described data to the signal of telecommunication, in the present embodiment, data acquisition and processing module 302 are positioned on extended coding device interface board, by arranging the first installation slot on mainboard 301, described extended coding device interface board being inserted described first installation slot and realizing data acquisition and processing module 302 to be located on mainboard 301; Control module 303, be located on mainboard 301, data transmission is carried out by described communication bus and described data acquisition and processing module 302, for receiving the described signal of telecommunication, and by pre-set programs, the described signal of telecommunication is processed, obtain drived control order, export described drived control order, in the present embodiment, control module 303 is positioned on advanced motion position control plate, by arranging the second installation slot on mainboard 301, described advanced motion position control plate being inserted described second installation slot and realizing control module 303 to be located on mainboard 301; Fly cutter motor drive module 304 is located on mainboard 301, carries out data transmission by described communication bus and control module 303, for receiving described control command, and according to the drive motors of fly cutter cutting machine described in described drived control command driven.

The control device of the fly cutter cutting machine that the embodiment of the present invention provides, by data acquisition and processing module, control module and fly cutter motor drive module are integrated on mainboard, its communication bus by mainboard is made to carry out data transmission, greatly reduce the volume of control device, improve data transmission bauds and the antijamming capability of control device, its active safety is improved greatly, simultaneously, system works alone, and can carry out upgrading fast when production line front-end process does not make any changes to production line.

Preferably, described input terminal, comprising: meter wheel encoder, and it comprises meter wheel and is arranged on the encoder on meter wheel, and described meter wheel can be crimped on flat tubing, for measuring linear velocity and the length of described flat tubing; Position coder, can be arranged on the driving shaft of fly cutter cutting machine, for measuring speed and the position of the fly cutter of described fly cutter cutting machine; And manual input device, as HMI input equipment, for the parameter preset needed for input control device.

Described input terminal, also comprises: obliquity sensor, for measuring the fly cutter plane of rotation inclination angle of described fly cutter cutting machine, cuts off sizing accuracy and otch perpendicularity to further increase.

Embodiment 4

See Fig. 1, embodiments provide a kind of control device of fly cutter cutting machine, the fly cutter cutting machine 20 that institute's the method controls is for cutting flat tubing, and it comprises drive motors 1, fly cutter 2, bent wheel 3, connecting rod 4 and tubing die sleeve 5.Drive motors 1 is provided with driving shaft 11, and driving shaft 11 is provided with gear 12, for driving fly cutter 2 and bent wheel 3, fly cutter 2 comprises tool arm 21 and blade 22, and tool arm 21 is strip structure, and blade 22 is arranged on an end face of tool arm 21, and its knife edge is towards its direction of motion, and the center of tool arm 21 is located on driving shaft 11, rotates with driving shaft 11, bent wheel 3 is positioned at the side of driving shaft 11, is connected, and rotates with driving shaft 11 by gear 12 with driving shaft 11, and as shown in Figure 2, the reference radius of bent wheel 3 is n times of the reference radius of gear 12, and n is the even number of non-zero, its one end of connecting rod 4 is taken turns 3 with song and is rotationally connected by turning cylinder, and the center of circle that tie point does not take turns 3 with song overlaps, and the other end extends to the side away from driving shaft 11, tubing die sleeve 5 and bent take turns 3 be oppositely arranged and and song take turns 3 between there is spacing, tubing die sleeve 5 is provided with spacing groove 51, flat tubing 10 is located in spacing groove 51, and be matched in clearance with spacing groove 51, thus spacing groove 51 can be passed through smoothly, when fly cutter 2 cuts flat tubing 10, tubing die sleeve 5 is connected with one end that connecting rod 4 takes turns 3 away from song by the mode such as bonding or be threaded, when fly cutter 2 does not cut flat tubing 10, tubing die sleeve 5 departs from connecting rod 4 and away from connecting rod 4, fly cutter rotary area is departed to make the flat tubing 10 be located in its spacing groove 51.

Described control device comprises mainboard 301, input terminal, data acquisition and processing module 302, control module 303 and fly cutter motor drive module 304 and solenoid actuated module 305.Mainboard 301 is provided with communication bus, input terminal, for inputting data, it comprises meter wheel encoder 8, position coder 9 and manual input device 306, described meter wheel encoder 8 it comprise meter wheel and encoder, described meter wheel is crimped on described flat tubing, described encoder is positioned on described meter wheel, for measuring linear velocity and the length of described flat tubing, described position coder 9 is connected with described driving shaft, for measuring speed and the position of the fly cutter of described fly cutter cutting machine, described manual input device, for inputting parameter preset, data acquisition and processing module 302 are located on mainboard 301, for gathering the data of described input terminal input, and convert described data to the signal of telecommunication, in the present embodiment, data acquisition and processing module 302 are positioned on extended coding device interface board, by arranging the first installation slot on mainboard 301, described extended coding device interface board being inserted described first installation slot and realizing data acquisition and processing module 302 to be located on mainboard 301, control module 303, be located on mainboard 301, data transmission is carried out by described communication bus and described data acquisition and processing module 302, for receiving the described signal of telecommunication, and by pre-set programs, the described signal of telecommunication is processed, obtain the first drived control order and the second drived control order, and export described first drived control order and the second drived control order, in the present embodiment, control module 303 is positioned on advanced motion position control plate, by arranging the second installation slot on mainboard 301, described advanced motion position control plate is inserted described second installation slot to realize control module 303 to be located on mainboard 301, fly cutter motor drive module 304 is located on mainboard 301, data transmission is carried out by described communication bus and control module 303, for receiving described first drived control order, and according to the drive motors of fly cutter cutting machine described in described first drived control command driven, solenoid actuated module 305, for receiving described second drived control order, and according to described second drived control command driven first electromagnet 6 or the second electromagnet 7, in the present embodiment, solenoid actuated module 305 comprises the first control circuit for electromagnet 305a and the second control circuit for electromagnet 305b, the driving realizing the first electromagnet 6 or the second electromagnet 7 by driving the first control circuit for electromagnet 305a or the second control circuit for electromagnet 305b.

The control device of the fly cutter cutting machine that the embodiment of the present invention provides, by data acquisition and processing module, control module and fly cutter motor drive module are integrated on mainboard, its communication bus by mainboard is made to carry out data transmission, greatly reduce the volume of control device, improve data transmission bauds and the antijamming capability of control device, its active safety is improved greatly, simultaneously, system works alone, and can carry out upgrading fast when production line front-end process does not make any changes to production line; Switch the first electromagnet and the second electromagnet by solenoid actuated module, facilitate locking and the movement of described tubing die sleeve, improve cutting efficiency, cut off sizing accuracy and otch perpendicularity.

Concrete, in the present embodiment, linear velocity V and the length of flat tubing 10 is obtained by meter wheel encoder 8, speed and the position of the fly cutter of described fly cutter cutting machine is measured by position coder 9, the height H of flat tubing 10 is inputted by HMI input equipment, the linear velocity V of flat tubing 10, the angle theta of the plane of rotation of blade 22 and the vertical direction vertical line of flat tubing 10, the θ number of degrees are generally between 2-5 degree, the length L of the flat tubing 10 under cutting, the parameter presets such as the radius of gyration R of described blade.

Data acquisition and processing module 302, by gathering the data of described input terminal input, convert thereof into the signal of telecommunication; Control module 303 receives the described signal of telecommunication, and processes described data according to following pre-set programs:

First rotating speed $n_1=\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}*\frac{V}{\tan \mathrm{\θ}*H};$

Second rotating speed $n_2=[K-\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}]*\frac{V}{L-\tan \mathrm{\θ}*H};$

Wherein: K is the multiple of n, and be closest to K ₁the multiple of n,

When collecting fly cutter and being in the position of cutting flat tubing, control module 303 show that controlling motor speed is n ₁the first drived control order and control the first electromagnet 6 and fix the second drived control order of tubing die sleeve 5, and exporting this first control command to fly cutter motor drive module 304, the first control circuit for electromagnet 305a to solenoid actuated module 305 exports this second drived control order;

When collecting fly cutter and leaving the position of cutting flat tubing, control module 303 show that controlling motor speed is n ₂the first drived control order and control the second electromagnet 6 and fix the second drived control order of tubing die sleeve 5, and exporting this first control command to fly cutter motor drive module 304, the second control circuit for electromagnet 305b to solenoid actuated module 305 exports this second drived control order;

Fly cutter motor drive module 304 for receiving described first drived control order, and according to fly cutter cutting machine described in described first drived control command driven; Solenoid actuated module 305, for receiving described second drived control order, and according to described second drived control command driven first electromagnet 6 or the second electromagnet 7.

The control device of the fly cutter cutting machine provided of the present embodiment cuts with turned off in synchronization speed by controlling fly cutter, ensure that the perpendicularity of flat tubing cut surface, simultaneously, the speed uniform rotation with synchronous cutting similar rate is kept when waiting and cutting by making fly cutter, reduce drive motors acceleration and deceleration ability need, reduce the impact of velocity variations to drive motors to greatest extent, not only ensure that and cut off sizing accuracy and otch perpendicularity but also the potential safety hazard avoiding the too fast motor damage caused of motor acceleration and deceleration even even more serious; By using locked with electromagnet tubing die sleeve, the movement of described tubing die sleeve is realized by switching the first electromagnet and the second electromagnet, facilitate locking and the movement of tubing die sleeve, and can automatically control, improve cutting efficiency and cut off sizing accuracy and otch perpendicularity.

When connecting rod 4 rotates to the circle being about to carry out cutting, with connecting rod 4 away from driving shaft 11 and for original position when being horizontal, the angle that connecting rod 4 turns over is 2 π-β ₁time, drive the first electromagnet 6, make the first electromagnet 6 adsorb and lock tubing die sleeve 5;

${\mathrm{\β}}_1=\arccos \left[\frac{{R_s}^2+{(R_s+L_s-L_c)}^2-{L_s}^2}{2R_s(R_s+L_s-L_c)}\right]$

Wherein: R _sfor the radius of described song wheel, L _sfor the length of described connecting rod, L _cfor the maximum air gap of the effective action power of described first electromagnet and described second electromagnet.

When arriving the maximum air gap of the effective action power of the first electromagnet 6 apart from the distance of tubing die sleeve 5 from the first electromagnet 6, start to drive the first electromagnet 6, it can produce the effective action power to tubing die sleeve 5, can adsorb tubing die sleeve 5, thus locking tubing die sleeve 5.

Preferably, described second electromagnet of described control fixes described tubing die sleeve, comprising:

When connecting rod 4 rotates to the first lap after having cut, with connecting rod 4 away from driving shaft 11 and for original position when being horizontal, when the angle that connecting rod 4 rotates through is π, control the first electromagnet 6 dead electricity;

When connecting rod 4 rotates to the first lap after having cut, with connecting rod 4 away from driving shaft 11 and for original position when being horizontal, the angle that described connecting rod rotates through is 2 π-β ₁time, drive the second electromagnet 7, make the second electromagnet 7 adsorb and lock tubing die sleeve 5;

Wherein: R _sfor the radius of described song wheel, L _sfor the length of described connecting rod, L _cfor the maximum air gap of the effective action power of described first electromagnet and described second electromagnet.

The first electromagnet 6 dead electricity is given from the distance farthest between the first electromagnet 6 and tubing die sleeve 5, the first electromagnet 6 can be made to lose absorption affinity to tubing die sleeve 5 fast, be conducive to the switching carrying out the first electromagnet 6 and the second electromagnet 7 fast and effectively, make the first electromagnet 6 and the second electromagnet 7 effectively cooperating; When arriving the maximum air gap of the effective action power of the second electromagnet 7 apart from the distance of tubing die sleeve 5 from the second electromagnet 7, start to drive the second electromagnet 7, it can produce the effective action power to tubing die sleeve 5, can adsorb tubing die sleeve 5, thus locking tubing die sleeve 5.

Preferably, described control method also comprised before implementation: the angle theta value measuring the vertical direction vertical line of described blade plane of rotation and described flat tubing.

This step can realize by using obliquity sensor, and obliquity sensor is preferably mounted at and flies on the complete machine pedestal of cutting machine, and the angle of the vertical normal of described pedestal place plane and the vertical direction vertical line of described flat tubing is θ.

This step can realize by using obliquity sensor, and obliquity sensor is preferably mounted at and flies on the complete machine pedestal of cutting machine.

By determining angle theta value before cutting, be conducive to the quality of fit ensureing fly cutter, the first electromagnet and the second electromagnet, and the smooth switching of the first electromagnet and the second electromagnet, thus further increase cutting accuracy.

Embodiment 5

See Fig. 1, embodiments provide a kind of fly cutter cutting machine system, it comprises fly cutter cutting machine and fly cutter cutting machine control device: described fly cutter cutting machine is for cutting off flat tubing, and it comprises drive motors 1, fly cutter 2, bent wheel 3, connecting rod 4 and tubing die sleeve 5.Drive motors 1 is provided with driving shaft 11, and driving shaft 11 is provided with gear 12, for driving fly cutter 2 and bent wheel 3, fly cutter 2 comprises tool arm 21 and blade 22, and tool arm 21 is strip structure, and blade 22 is arranged on an end face of tool arm 21, and its knife edge is towards its direction of motion, and the center of tool arm 21 is located on driving shaft 11, rotates with driving shaft 11, bent wheel 3 is positioned at the side of driving shaft 11, is connected, and rotates with driving shaft 11 by gear 12 with driving shaft 11, and the reference radius of bent wheel 3 is 2 times of the reference radius of gear 12, its one end of connecting rod 4 is taken turns 3 with song and is rotationally connected by turning cylinder, and the center of circle that tie point does not take turns 3 with song overlaps, and the other end extends to the side away from driving shaft 11, tubing die sleeve 5 and bent take turns 3 be oppositely arranged and and song take turns 3 between there is spacing, tubing die sleeve 5 is provided with spacing groove 51, flat tubing 10 is located in spacing groove 51, and be matched in clearance with spacing groove 51, thus spacing groove 51 can be passed through smoothly, when fly cutter 2 cuts flat tubing 10, tubing die sleeve 5 is connected with one end that connecting rod 4 takes turns 3 away from song by the mode such as bonding or be threaded, when fly cutter 2 does not cut flat tubing 10, tubing die sleeve 5 departs from connecting rod 4 and away from connecting rod 4, fly cutter rotary area is departed to make the flat tubing 10 be located in its spacing groove 51.

Described control device comprises mainboard 301, input terminal, data acquisition and processing module 302, control module 303 and fly cutter motor drive module 304 and solenoid actuated module 305.Mainboard 301 is provided with communication bus, input terminal, for inputting data, it comprises meter wheel encoder 8, position coder 9 and manual input device 306, described meter wheel encoder 8 it comprise meter wheel and encoder, described meter wheel is crimped on described flat tubing, described encoder is positioned on described meter wheel, for measuring linear velocity and the length of described flat tubing, described position coder 9 is connected with described driving shaft, for measuring speed and the position of the fly cutter of described fly cutter cutting machine, described manual input device, for inputting parameter preset, data acquisition and processing module 302 are located on mainboard 301, for gathering the data of described input terminal input, and convert described data to the signal of telecommunication, in the present embodiment, data acquisition and processing module 302 are positioned on extended coding device interface board, by arranging the first installation slot on mainboard 301, described extended coding device interface board being inserted described first installation slot and realizing data acquisition and processing module 302 to be located on mainboard 301, control module 303, be located on mainboard 301, data transmission is carried out by described communication bus and described data acquisition and processing module 302, receive the described signal of telecommunication, and by pre-set programs, the described signal of telecommunication is processed, obtain the first drived control order and the second drived control order, and export described first drived control order and the second drived control order, in the present embodiment, control module 303 is positioned on advanced motion position control plate, by arranging the second installation slot on mainboard 301, described advanced motion position control plate is inserted described second installation slot to realize control module 303 to be located on mainboard 301, fly cutter motor drive module 304 is located on mainboard 301, data transmission is carried out by described communication bus and control module 303, for receiving described first drived control order, and according to the drive motors of fly cutter cutting machine described in described first drived control command driven, solenoid actuated module 305, for receiving described second drived control order, and according to described second drived control command driven first electromagnet 6 or the second electromagnet 7, in the present embodiment, solenoid actuated module 305 comprises the first control circuit for electromagnet 305a and the second control circuit for electromagnet 305b, the driving realizing the first electromagnet 6 or the second electromagnet 7 by driving the first control circuit for electromagnet 305a or the second control circuit for electromagnet 305b.

Concrete, in the present embodiment, linear velocity V and the length of flat tubing 10 is obtained by meter wheel encoder 8, speed and the position of the fly cutter of described fly cutter cutting machine is measured by position coder 9, the height H of flat tubing 10 is inputted by HMI input equipment, the linear velocity V of flat tubing 10, the angle theta of the vertical direction vertical line of blade 22 plane of rotation and flat tubing 10, the θ number of degrees are generally between 2-5 degree, the length L of the flat tubing 10 under cutting, the parameter presets such as the radius of gyration R of described blade.

Data acquisition and processing module 302, by gathering the data of described input terminal input, process described data according to following pre-set programs:

First rotating speed $n_1=\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}*\frac{V}{\tan \mathrm{\θ}*H};$

Second rotating speed $n_2=[K-\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}]*\frac{V}{L-\tan \mathrm{\θ}*H};$

Wherein: K is the even number closest to K1,

When collecting fly cutter and being in the position of cutting flat tubing, data acquisition and processing module 302 show that controlling motor speed is n ₁the first drived control order and control the first electromagnet 6 and fix the second drived control order of tubing die sleeve 5, and exporting this first control command to fly cutter motor drive module 304, the first control circuit for electromagnet 305a to solenoid actuated module 305 exports this second drived control order;

When collecting fly cutter and leaving the position of cutting flat tubing, data acquisition and processing module 302 show that controlling motor speed is n ₂the first drived control order and control the second electromagnet 6 and fix the second drived control order of tubing die sleeve 5, and exporting this first control command to fly cutter motor drive module 304, the second control circuit for electromagnet 305b to solenoid actuated module 305 exports this second drived control order;

Fly cutter motor drive module 304 for receiving described first drived control order, and according to fly cutter cutting machine described in described first drived control command driven; Solenoid actuated module 305, for receiving described second drived control order, and according to described second drived control command driven first electromagnet 6 or the second electromagnet 7.

The control device of the fly cutter cutting machine provided of the present embodiment cuts with turned off in synchronization speed by controlling fly cutter, ensure that the perpendicularity of flat tubing cut surface, simultaneously, the speed uniform rotation with synchronous cutting similar rate is kept when waiting and cutting by making fly cutter, reduce drive motors acceleration and deceleration ability need, reduce the impact of velocity variations to drive motors to greatest extent, not only ensure that and cut off sizing accuracy and otch perpendicularity but also the potential safety hazard avoiding the too fast motor damage caused of motor acceleration and deceleration even even more serious; By using locked with electromagnet tubing die sleeve, the movement of described tubing die sleeve is realized by switching the first electromagnet and the second electromagnet, facilitate locking and the movement of tubing die sleeve, and can automatically control, improve cutting efficiency and cut off sizing accuracy and otch perpendicularity.

The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.

Claims (10)

1. a control method for fly cutter cutting machine, described fly cutter cutting machine is for cutting flat tubing, and it comprises: drive motors, is provided with driving shaft, and described driving shaft is provided with gear; Fly cutter, comprise strip tool arm and the blade being fixed on described tool arm one end, the center of described tool arm is located on described driving shaft, with described drive shaft turns; Bent wheel, is positioned at the side of described driving shaft, is connected by described gear with described driving shaft, and with described drive shaft turns, the reference radius of described song wheel is n times of the reference radius of described gear, and n is the even number of non-zero; Connecting rod, its one end and described song are taken turns and are rotationally connected, and the center of circle that tie point is not taken turns with described song overlaps, and the other end extends to the side away from described driving shaft; Tubing die sleeve, itself and described song are taken turns and are oppositely arranged and have spacing, it is provided with spacing groove, described flat tubing is located in described spacing groove, with described spacing groove matched in clearance, when the described flat tubing of described fly cutter cutting, one end that described tubing die sleeve is taken turns away from described song with described connecting rod is connected, when described fly cutter does not cut described flat tubing, described tubing die sleeve is away from described connecting rod; It is characterized in that, described control method comprises:

When described in described blade cuts during flat tubing, control described blade with the first rotating speed n ₁rotate;

When gap in cutting twice, control described blade with the second rotating speed n ₂rotate;

The first described rotating speed $n_1=\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}*\frac{V}{\tan \mathrm{\θ}*H};$

The second described rotating speed $n_2=[K-\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}]*\frac{V}{L-\tan \mathrm{\θ}*H};$

Wherein: K is the multiple of n, and be closest to K ₁the multiple of n, h is the height of described flat tubing, and V is the linear velocity of described flat tubing, and θ is the angle of the plane of rotation of described blade and the vertical direction vertical line of described flat tubing, and L is the length of the described flat tubing under will cutting, and R is the radius of gyration of described blade.

2. a control method for fly cutter cutting machine, described fly cutter cutting machine is for cutting flat tubing, and it comprises: drive motors, is provided with driving shaft, and described driving shaft is provided with gear; Fly cutter, comprise strip tool arm and the blade being fixed on described tool arm one end, the center of described tool arm is located on described driving shaft, with described drive shaft turns; Bent wheel, is positioned at the side of described driving shaft, is connected by described gear with described driving shaft, and with described drive shaft turns, the reference radius of described song wheel is n times of the reference radius of described gear, and n is the even number of non-zero; Connecting rod, its one end and described song are taken turns and are rotationally connected, and the center of circle that tie point is not taken turns with described song overlaps, and the other end extends to the side away from described driving shaft; Tubing die sleeve, itself and described song are taken turns and are oppositely arranged and have spacing, and it is provided with spacing groove, and described flat tubing is located in described spacing groove, with described spacing groove matched in clearance; First electromagnet, the one end of taking turns away from described song with described connecting rod is connected; And second electromagnet, be positioned at the side of described tubing die sleeve away from described first electromagnet, be oppositely arranged with described first electromagnet, for adsorbing and locking described tubing die sleeve, and make it away from the rotary track of described fly cutter; Described tubing die sleeve, by can being made by the material that electromagnet adsorbs, being connected with described connecting rod by described first magnet, making the flat tubing be located on described tubing die sleeve be positioned at the cutting zone of described blade, it is characterized in that, described control method comprises:

When described in described blade cuts during flat tubing, control described blade with the first rotating speed n ₁rotate, and control tubing die sleeve described in described first locked with electromagnet;

When gap in cutting twice, control described blade with the second rotating speed n ₂rotate, and control tubing die sleeve described in described second locked with electromagnet;

The first described rotating speed $n_1=\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}*\frac{V}{\tan \mathrm{\θ}*H};$

The second described rotating speed $n_2=[K-\frac{2*\arcsin \left(\frac{\frac{H}{\cos \mathrm{\θ}}}{2R}\right)}{360}]*\frac{V}{L-\tan \mathrm{\θ}*H};$

Wherein: K is the multiple of n, and be the multiple of the n closest to K1, h is the height of described flat tubing, and V is the linear velocity of described flat tubing, and θ is the angle of the plane of rotation of described blade and the vertical direction vertical line of described flat tubing, and L is the length of the described flat tubing under will cutting, and R is the radius of gyration of described blade.

3. the control method of fly cutter cutting machine according to claim 2, is characterized in that:

Described first electromagnet of described control fixes described tubing die sleeve, comprising:

When described connecting rod rotates to the circle being about to carry out cutting, with described connecting rod away from described driving shaft and for original position when being horizontal, the angle that described connecting rod turns over is 2 π-β ₁time, drive described first electromagnet, described first electromagnet is adsorbed and locks described tubing die sleeve;

${\mathrm{\β}}_1=\arccos \left[\frac{{R_s}^2+{(R_s+L_s-L_c)}^2-{L_s}^2}{2R_s(R_s+L_s-L_c)}\right];$

Wherein: R _sfor the radius of described song wheel, L _sfor the length of described connecting rod, L _cfor the maximum air gap of the effective action power of described first electromagnet and described second electromagnet.

4. the control method of fly cutter cutting machine according to claim 3, is characterized in that:

Described second electromagnet of described control fixes described tubing die sleeve, comprising:

When described connecting rod rotates to the first lap after having cut, with described connecting rod away from described driving shaft and for original position when being horizontal, when the angle that described connecting rod rotates through is π, control described first electromagnet dead electricity;

When described connecting rod rotates to the first lap after having cut, with described connecting rod away from described driving shaft and for original position when being horizontal, the angle that described connecting rod rotates through is 2 π-β ₁time, drive described second electromagnet, described second electromagnet is adsorbed and locks described tubing die sleeve;

Wherein: R _sfor the radius of described song wheel, L _sfor the length of described connecting rod, L _cfor the maximum air gap of the effective action power of described first electromagnet and described second electromagnet.

5. the control method of fly cutter cutting machine according to claim 2, is characterized in that, described control method, before implementation, also comprises:

Measure the angle theta value of the plane of rotation of described blade and the vertical direction vertical line of described flat tubing.

6. a control device for fly cutter cutting machine, described fly cutter cutting machine, for cutting off flat tubing, is characterized in that, described control device comprises:

Mainboard, is provided with communication bus;

Input terminal, for inputting data;

Data acquisition and processing module, be located on described mainboard, for gathering the data of described input terminal input, and converts described data to the signal of telecommunication;

Control module, is located on described mainboard, carries out data transmission by described communication bus and described data acquisition and processing module, for receiving the described signal of telecommunication, and by pre-set programs, the described signal of telecommunication is processed, obtain drived control order, export described drived control order;

Fly cutter motor drive module, is located on described mainboard, carries out data transmission by described communication bus and described control module, for receiving described control command, and according to fly cutter cutting machine described in described drived control command driven.

7. the control device of fly cutter cutting machine according to claim 6, is characterized in that, described input terminal, comprising:

Meter wheel encoder, for measuring linear velocity and the length of described flat tubing;

Position coder, for measuring speed and the position of the fly cutter of described fly cutter cutting machine;

Manual input device, for inputting parameter preset.

8. the control device of fly cutter cutting machine according to claim 7, is characterized in that, described input terminal, also comprises:

Obliquity sensor, for measuring the fly cutter plane of rotation inclination angle of described fly cutter cutting machine.

9. a control device for fly cutter cutting machine, described fly cutter cutting machine is for cutting off flat tubing, and it comprises: drive motors, is provided with driving shaft, and described driving shaft is provided with gear; Fly cutter, comprise strip tool arm and the blade being fixed on described tool arm one end, the center of described tool arm is located on described driving shaft, with described drive shaft turns; Bent wheel, is positioned at the side of described driving shaft, is connected by described gear with described driving shaft, and with described drive shaft turns, the reference radius of described song wheel is n times of the reference radius of described gear, and n is the even number of non-zero; Connecting rod, its one end and described song are taken turns and are rotationally connected, and the center of circle that tie point is not taken turns with described song overlaps, and the other end extends to the side away from described turning cylinder; Tubing die sleeve, itself and described song are taken turns and are oppositely arranged and have spacing, and it is provided with spacing groove, and described flat tubing is located in described spacing groove, with described spacing groove matched in clearance; First electromagnet, the one end of taking turns away from described song with described connecting rod is connected; And second electromagnet, be positioned at the side of described tubing die sleeve away from described first electromagnet, be oppositely arranged with described first electromagnet, for fixing described tubing die sleeve, and make it away from the rotary track of described fly cutter; Described tubing die sleeve, by can being made by the material that electromagnet adsorbs, being connected with described connecting rod by described first magnet, making the flat tubing be located on described tubing die sleeve be positioned at the cutting zone of described blade, it is characterized in that, described control device comprises:

Mainboard, is provided with communication bus;

Input terminal;

Data acquisition and processing module, be located on described mainboard, for gathering the data of described input terminal input, and converts described data to the signal of telecommunication;

Control module, be located on described mainboard, data transmission is carried out by described communication bus and described data acquisition and processing module, for receiving the described signal of telecommunication, and by pre-set programs, the described signal of telecommunication is processed, obtain the first drived control order and the second drived control order, and export described first drived control order and the second drived control order;

Fly cutter motor drive module, is located on described mainboard, carries out data transmission by described communication bus and described control module, for receiving described first drived control order, and according to fly cutter cutting machine described in described first drived control command driven; And

Solenoid actuated module, for receiving described second drived control order, and according to the first electromagnet or described second electromagnet described in described second drived control command driven;

Described input terminal comprises:

Meter wheel encoder, is connected with described flat tubing, for measuring linear velocity and the length of described flat tubing;

Position coder, is connected with described driving shaft, for measuring speed and the position of the fly cutter of described fly cutter cutting machine;

Manual input device, for inputting parameter preset.

10. a fly cutter cutting system, is characterized in that, it comprises fly cutter cutting machine and fly cutter cutting machine control device:

Described fly cutter cutting machine is for cutting off flat tubing, and it comprises:

Drive motors, is provided with driving shaft, and described driving shaft is provided with gear;

Fly cutter, comprise strip tool arm and the blade being fixed on described tool arm one end, the center of described tool arm is located on described driving shaft, with described drive shaft turns;

Bent wheel, is positioned at the side of described driving shaft, is connected by described gear with described driving shaft, and with described drive shaft turns, the reference radius of described song wheel is n times of the reference radius of described gear, and n is the even number of non-zero; ;

Connecting rod, its one end and described song are taken turns and are rotationally connected, and the center of circle that tie point is not taken turns with described song overlaps, and the other end extends to the side away from described driving shaft;

Tubing die sleeve, itself and described song are taken turns and are oppositely arranged and have spacing, and it is provided with spacing groove, and described flat tubing is located in described spacing groove, with described spacing groove matched in clearance;

First electromagnet, the one end of taking turns away from described song with described connecting rod is connected; And

Second electromagnet, is positioned at the side of described tubing die sleeve away from described first electromagnet, is oppositely arranged with described first electromagnet, for fixing described tubing die sleeve, and makes it away from the rotary track of described fly cutter;

Described tubing die sleeve, by can being made by the material that electromagnet adsorbs, is connected with described connecting rod by described first magnet, makes the flat tubing be located on described tubing die sleeve be positioned at the cutting zone of described blade;

Described fly cutter cutting machine control device comprises:

Mainboard, is provided with communication bus;

Input terminal;

Data acquisition and processing module, be located on described mainboard, for gathering the data of described input terminal input, and converts described data to the signal of telecommunication;

Control module, be located on described mainboard, data transmission is carried out by described communication bus and described data acquisition and processing module, for receiving the described signal of telecommunication, and by pre-set programs, the described signal of telecommunication is processed, obtain the first drived control order and the second drived control order, and export described first drived control order and the second drived control order;

Fly cutter motor drive module, is located on described mainboard, carries out data transmission by described communication bus and described control module, for receiving described first drived control order, and according to fly cutter cutting machine described in described first drived control command driven; And

Solenoid actuated module, for receiving described second drived control order, and according to the first electromagnet or described second electromagnet described in described second drived control command driven;

Described input terminal comprises:

Meter wheel encoder, is connected with described flat tubing, for measuring linear velocity and the length of described flat tubing;

Position coder, is connected with described driving shaft, for measuring speed and the position of the fly cutter of described fly cutter cutting machine; And

Manual input device, for inputting parameter preset.