CN203401220U

CN203401220U - Z-axis capacitance increasing system of laser cutting machine

Info

Publication number: CN203401220U
Application number: CN201320467956.3U
Authority: CN
Inventors: 李明杰
Original assignee: JIANGSU DADE HEAVY INDUSTRY Co Ltd
Current assignee: JIANGSU DADE HEAVY INDUSTRY Co Ltd
Priority date: 2013-08-01
Filing date: 2013-08-01
Publication date: 2014-01-22
Anticipated expiration: 2023-08-01

Abstract

The utility model provides a Z-axis capacitance increasing system of a laser cutting machine. The Z-axis capacitance increasing system comprises a Z-axis capacitance increasing controller U4, the controlled end of the Z-axis capacitance increasing controller U4 is connected with a controlled input circuit, and the controlled input circuit receives control signals output by an output control circuit in a digital control system in the laser cutting machine so as to enable the Z-axis capacitance increasing controller U4 to work in an automatic state or a manual state; the output end of the Z-axis capacitance increasing controller U4 is connected with a cutting-torch lifting motor M3. The input end of the Z-axis capacitance increasing controller U4 is connected with the controlled input circuit, and upper and lower limit signals of a cutting torch are input in the Z-axis capacitance increasing controller U4 through the controlled input circuit. The cutting-torch lifting motor M3 is a direct-current motor with a reduction box. According to the Z-axis capacitance increasing system, much pulse circuit control is omitted, control circuits are simple, the Z-axis capacitance increasing system is not prone to being disturbed, hardware stability is high, reliability is high, and stability of a machine tool of the laser cutting machine can be improved greatly in whole.

Description

Laser cutting machine Z axis capacitance raising system

Technical field

The utility model relates to laser cutting machine, the Z axis capacitance raising system in especially a kind of YAG laser cutting machine.

Background technology

Some panel beating industry is due to the needs of product, often to cut multiple thin metal blank, the shape small size thin plate sheet metal component of cutting different size, by the Laser Power Devices of configuration different capacity size, can high-quality carbon steel plate, corrosion resistant plate, the thin plates such as aluminium sheet, in following these industries: cabinet manufacture, Aero-Space, grain machinery, textile machine, engineering machinery, locomotive is manufactured, agriculture and forestry machinery, elevator is manufactured, special car, household electrical appliance are manufactured, tool processes, petroleum machinery is manufactured, food machinery, decorative advertisement, the various machine-building processing industries such as laser laser job shop are used widely.Laser cutting machine is the one-time process revolution of panel beating, is " machining center " in panel beating; Laser cutting machine flexibility degree is high, and cutting speed is fast, and production efficiency is high, and life cycle of the product is short, for client has won market widely.Laser cutting machine is without cutting force, and processing is without distortion; Without tool wear, adaptability for materials is good; No matter be simple or complex parts, can be with once accurate Quick-forming cutting of laser; Its joint-cutting is narrow, and cut quality is good, automaticity is higher, easy and simple to handle, and labour intensity is low, does not pollute; Can realize cutting automatic nesting, jacking, improve stock utilization, production cost is low, good in economic efficiency.

Z axis capacitance raising system is the important component part in YAG laser cutting machine, existing Z axis capacitance raising system generally adopts servomotor type Z axis capacitance raising system, servomotor type Z axis capacitance raising system is mainly by capacitor height regulating controller, servo controller, servomotor forms, the maximum problems of this servomotor type Z axis capacitance raising system are that control circuit is more, servo controller has interfering signal to affect the stability of servo controller while being easily subject to circuit longer, the phenomenon causing is in cutting process, laser cutting machine cutting torch tracking altitude is fluctuated, cut out product quality bad, because make laser cutting machine cut quality good, requirement laser cut torch cutting tracking altitude stability in cutting process is consistent.Because using servo controller and servomotor, so hardware cost is also very high, in market competition, cause there is no advantage.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of laser cutting machine Z axis capacitance raising system is provided, mainly by Z axis capacitor height regulating controller and the direct current generator with reduction box, formed, hardware cost is low, control circuit is simple, laser machine cutting torch tracking altitude good stability in actual cutting process.The technical solution adopted in the utility model is:

A kind of laser cutting machine Z axis capacitance raising system, comprise a Z axis capacitor height regulating controller U4, the controlled end of described Z axis capacitor height regulating controller U4 connects a controlled input circuit, the control signal of the output control circuit output in the digital control system of this controlled input circuit reception laser cutting machine, makes Z axis capacitor height regulating controller U4 be operated in auto state or manual mode; The output of described Z axis capacitor height regulating controller U4 directly connects cutting torch lifting motor M3.

The input of described Z axis capacitor height regulating controller U4 connects a limited input circuit, the upper and lower spacing signal by limited input circuit to Z axis capacitor height regulating controller U4 input cutting torch.

Described limited input circuit comprises upper limit position switch SQ1 and lower position switch SQ2, one end of one end of upper limit position switch SQ1 and lower position switch SQ2 is all connected with the input of Z axis capacitor height regulating controller U4, and the other end of the other end of upper limit position switch SQ1 and lower position switch SQ2 links together and is connected with the spacing common port of Z axis capacitor height regulating controller U4.

Described cutting torch lifting motor M3 is the direct current generator with reduction box.

The digital control system of described laser cutting machine comprises master controller U3, and described master controller U3 connects X-axis servomotor M1 by X-axis servo controller U1, and described master controller U3 connects Y-axis servomotor M2 by Y-axis servo controller U2; Described master controller U3 connects an input control circuit (10), by input control circuit to master controller U3 input emergent stop signal and dolly crossbeam at the limit signal of X-direction and cart end carriage the limit signal in Y direction;

Described master controller U3 connects an output control circuit, sends control signal, to control the duty of described Z axis capacitor height regulating controller U4 by output control circuit to controlled input circuit in Z axis capacitance raising system.

Described output control circuit comprises the coil of the first relay K A1, the coil of the coil of the second relay K A2, the 3rd relay K A3, the first button SB1, the second button SB2, the 3rd button SB3;

First one end of relay K A1 coil and the positive potential end of the first dc source are connected, and the other end is connected with the output control terminal of master controller U3, and by the first button SB1, connect the zero potential end of the first dc source;

Second one end of relay K A2 coil and the positive potential end of the first dc source are connected, and the other end is connected with the output control terminal of master controller U3, and by the second button SB2, connect the zero potential end of the first dc source;

The 3rd one end of relay K A3 coil and the positive potential end of the first dc source are connected, and the other end is connected with the output control terminal of master controller U3, and by the 3rd button SB3, connect the zero potential end of the first dc source;

Described controlled input circuit comprises the first normally opened contact KA1-1 of the first relay K A1, the normally opened contact KA3-1 of the normally opened contact KA2-1 of the second relay K A2, the 3rd relay K A3;

One end of the normally opened contact KA2-1 of one end of the first normally opened contact KA1-1 of the first relay K A1, the second relay K A2 is connected the controlled end of Z axis capacitor height regulating controller U4 with one end of the normally opened contact KA3-1 of the 3rd relay K A3; The other end of the other end of the normally opened contact KA2-1 of the other end of the first normally opened contact KA1-1 of the first relay K A1, the second relay K A2 and the normally opened contact KA3-1 of the 3rd relay K A3 links together and is connected with the controlled common port of Z axis capacitor height regulating controller U4;

The first normally opened contact KA1-1 control Z axis capacitor height regulating controller U4 by the first relay K A1 is operated in auto state; Normally opened contact KA2-1 by the second relay K A2 is to Z axis capacitor height regulating controller U4 transmission cutting torch rising signals, and the normally opened contact KA3-1 by the 3rd relay K A3 is to Z axis capacitor height regulating controller U4 transmission cutting torch dropping signal.

Described output control circuit also comprises heightens automatic pilot lamp SB1-1, describedly heighten one end of automatic pilot lamp SB1-1 and the positive potential end of the first dc source is connected, the other end connects the zero potential end of the first dc source by the second normally opened contact KA1-2 of the first relay K A1.

Described input control circuit comprises a scram button SB0, and one end of described scram button SB0 connects the zero potential end of the first dc source, and the other end is connected with one end of the normally opened contact KA4-1 of the 4th relay K A4; The other end of the normally opened contact KA4-1 of the 4th relay K A4 connects the input control end of master controller U3 by the normally opened contact KA5-1 of the 5th relay K A5; One end of the 4th relay K A4 coil connects the positive potential end of the first dc source, and the other end connects the alarm end of X-axis servo controller U1; One end of the 5th relay K A5 coil connects the positive potential end of the first dc source, and the other end connects the alarm end of Y-axis servo controller U2.

Described input control circuit also comprises the first photoelectricity approach switch IPS1, the second photoelectricity approach switch IPS2, the 3rd photoelectricity approach switch IPS3, the 4th photoelectricity approach switch IPS4;

By the 3rd photoelectricity approach switch IPS3, the 4th photoelectricity approach switch IPS4, detect dolly crossbeam at the limit signal of X-direction; By the first photoelectricity approach switch IPS1, the second photoelectricity approach switch IPS2, detect cart end carriage at the limit signal of Y direction.

Advantage of the present utility model: the utility model is the improvement to original servomotor type Z axis capacitance raising system, with the comparison of servomotor type Z axis capacitance raising system, saving more impulse circuit controls, control circuit is simple, be difficult for being interfered, hardware stability is high, and reliability is high, can be on the whole the significantly stability of improving laser cutting machine lathe, reliability, practical.Laser machine cutting torch tracking altitude good stability in actual cutting process, the good product quality cutting out.The utility model hardware cost is low, have high cost performance superiority.

Accompanying drawing explanation

Fig. 1 is YAG laser cutting machine digital control system electrical schematic diagram of the present utility model.

Fig. 2 is Z axis capacitance raising system electrical schematic diagram of the present utility model.

The specific embodiment

Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.

YAG laser cutting machine mainly comprises digital control system (including master controller, input control circuit, output control circuit, X-axis servo controller, Y-axis servo controller etc.), servo electrical machinery system, Z axis capacitance raising system, laser power system, cooling-water machine system, light path system etc.And Z axis capacitance raising system is the cutting-height major control execution unit of YAG laser cutting machine lathe, directly affect the cut quality of whole laser cutting machine.Described YAG laser cutting machine Z axis capacitance raising system is mainly used in controlling the cutting-height of laser cutting machine.

As shown in Figure 1: first the digital control system for YAG laser cutting machine makes a presentation.The digital control system of YAG laser cutting machine comprises master controller U3, and described master controller U3 connects X-axis servomotor M1 by X-axis servo controller U1, and X-axis servomotor M1 drives the dolly crossbeam of YAG laser cutting machine to move in X-direction; Described master controller U3 connects Y-axis servomotor M2 by Y-axis servo controller U2; Y-axis servomotor M2 drives the cart end carriage of YAG laser cutting machine to move in Y direction.Described master controller U3 connects an input control circuit 10, by input control circuit 10 to master controller U3 input emergent stop signal and dolly crossbeam at the limit signal of X-direction and cart end carriage the limit signal in Y direction.This digital control system is powered by the first dc source (0V, 24V).

Specifically, this input control circuit 10 comprises the first photoelectricity approach switch IPS1, the second photoelectricity approach switch IPS2, the 3rd photoelectricity approach switch IPS3, the 4th photoelectricity approach switch IPS4; The hot end of power end respectively with the first dc source of above-mentioned four photoelectricity approach switchs is connected with zero potential end, and control end connects respectively the input control end of master controller U3.By the 3rd photoelectricity approach switch IPS3, the 4th photoelectricity approach switch IPS4, detect dolly crossbeam at the limit signal of X-direction; By the first photoelectricity approach switch IPS1, the second photoelectricity approach switch IPS2, detect cart end carriage at the limit signal of Y direction.The dolly crossbeam of lathe can move left and right along X-axis, when encountering left limit or right limit, the low level signal that the 3rd photoelectricity approach switch IPS3 or the 4th photoelectricity approach switch IPS4 are input to master controller U3 disconnects, the dolly crossbeam of lathe can not move towards this direction again, can only move in the opposite direction.The cart end carriage of lathe can move forward and backward along Y-axis, when encountering front limit or rear when spacing, the low level signal that the first photoelectricity approach switch IPS1 or the second photoelectricity approach switch IPS2 are input to master controller U3 disconnects, cart end carriage can not move towards this direction again, can only move in the opposite direction.

In order to make lathe can suddenly stop at moving process or cutting process, in this input control circuit 10, designed a scram button SB0, one end of described scram button SB0 connects the zero potential end of the first dc source, and the other end is connected with one end of the normally opened contact KA4-1 of the 4th relay K A4; The other end of the normally opened contact KA4-1 of the 4th relay K A4 connects the input control end of master controller U3 by the normally opened contact KA5-1 of the 5th relay K A5.One end of the 4th relay K A4 coil connects the positive potential end of the first dc source, and the other end connects the alarm end of X-axis servo controller U1; One end of the 5th relay K A5 coil connects the positive potential end of the first dc source, and the other end connects the alarm end of Y-axis servo controller U2.When lathe is in moving process or cutting process, if the scram button SB0 of push panel, the urgency that is input to master controller U3 is stopped low level signal disconnection, lathe emergent stopping everything.Another situation is, when X-axis servo controller U1 or Y-axis servo controller U2 have warning, can cut off the power supply of the 4th relay K A4 coil or the 5th relay K A5 coil, thereby the normally opened contact KA4-1 of the 4th relay K A4 or the normally opened contact KA5-1 of the 5th relay K A5 are disconnected, and the urgency that is also input to master controller U3 with regard to having disconnected is stopped low level signal.

As shown in Figure 2, Z axis capacitance raising system after YAG laser cutting machine improves, comprise a Z axis capacitor height regulating controller U4, the controlled end of described Z axis capacitor height regulating controller U4 connects a controlled input circuit 30, the control signal of output control circuit 20 outputs in the digital control system of these controlled input circuit 30 reception laser cutting machines, makes Z axis capacitor height regulating controller U4 be operated in auto state or manual mode; The input of described Z axis capacitor height regulating controller U4 connects a limited input circuit 40, the upper and lower spacing signal by limited input circuit 40 to Z axis capacitor height regulating controller U4 input cutting torch.Described limited input circuit 40 comprises upper limit position switch SQ1 and lower position switch SQ2, one end of one end of upper limit position switch SQ1 and lower position switch SQ2 is all connected with the input of Z axis capacitor height regulating controller U4, and the other end of the other end of upper limit position switch SQ1 and lower position switch SQ2 links together and is connected with the spacing common port of Z axis capacitor height regulating controller U4.Z axis capacitor height regulating controller U4 is powered by the second dc source (0V1,24V1).

The output of described Z axis capacitor height regulating controller U4 directly connects cutting torch lifting motor M3.Cutting torch lifting motor M3 adopts the 24v direct current generator with reduction box.

Described controlled input circuit 30 comprises the first normally opened contact KA1-1 of the first relay K A1, the normally opened contact KA3-1 of the normally opened contact KA2-1 of the second relay K A2, the 3rd relay K A3; One end of the normally opened contact KA2-1 of one end of the first normally opened contact KA1-1 of the first relay K A1, the second relay K A2 is connected the controlled end of Z axis capacitor height regulating controller U4 with one end of the normally opened contact KA3-1 of the 3rd relay K A3; The other end of the other end of the normally opened contact KA2-1 of the other end of the first normally opened contact KA1-1 of the first relay K A1, the second relay K A2 and the normally opened contact KA3-1 of the 3rd relay K A3 links together and is connected with the controlled common port of Z axis capacitor height regulating controller U4.

Master controller U3 connects an output control circuit 20, sends control signal, to control the duty of described Z axis capacitor height regulating controller U4 by output control circuit 20 to controlled input circuit 30 in Z axis capacitance raising system.Output control circuit 20 in the digital control system matching with controlled input circuit 30 as shown in fig. 1, specifically comprises: the coil of the coil of the first relay K A1, the second relay K A2, the coil of the 3rd relay K A3, the first button SB1, the second button SB2, the 3rd button SB3; First one end of relay K A1 coil and the positive potential end of the first dc source are connected, and the other end is connected with the output control terminal of master controller U3, and by the first button SB1, connect the zero potential end of the first dc source; Second one end of relay K A2 coil and the positive potential end of the first dc source are connected, and the other end is connected with the output control terminal of master controller U3, and by the second button SB2, connect the zero potential end of the first dc source; The 3rd one end of relay K A3 coil and the positive potential end of the first dc source are connected, and the other end is connected with the output control terminal of master controller U3, and by the 3rd button SB3, connect the zero potential end of the first dc source; Described output control circuit 20 also comprises heightens automatic pilot lamp SB1-1, describedly heighten one end of automatic pilot lamp SB1-1 and the positive potential end of the first dc source is connected, the other end connects the zero potential end of the first dc source by the second normally opened contact KA1-2 of the first relay K A1.

Output control circuit 20 is as follows with the course of work that controlled input circuit 30 cooperatively interacts: the first normally opened contact KA1-1 control Z axis capacitor height regulating controller U4 by the first relay K A1 is operated in auto state, can there be two kinds of control modes, one: the first button SB1 on push panel, first one end of relay K A1 coil and the positive potential end of the first dc source are connected, the other end is connected with the zero potential end of the first dc source due to pressing of the first button SB1, the first relay K A1 coil obtains electric, make the first normally opened contact KA1-1 of the first relay K A1 closed, Z axis capacitor height regulating controller U4 begins operating in auto state, its two: master controller U3 can be by a low level signal of octal output, make the first relay K A1 coil obtain electric, make the first normally opened contact KA1-1 of the first relay K A1 closed, also just make Z axis capacitor height regulating controller U4 begin operating in auto state.When Z axis capacitor height regulating controller U4 is operated in auto state, during the cutting of the laser cut torch of laser cutting machine, from motion tracking cutting-height, can make laser cut torch highly keep stable from 1 millimeter of cut workpiece.Sometimes, when surface trimming, need to manually get involved, or when non-cut state, also need Z axis capacitor height regulating controller U4 to be operated in manual mode; Normally opened contact KA2-1 that can be by the second relay K A2 is to Z axis capacitor height regulating controller U4 transmission cutting torch rising signals, and the normally opened contact KA3-1 by the 3rd relay K A3 is to Z axis capacitor height regulating controller U4 transmission cutting torch dropping signal.The second relay K A2 of take is example, when the second button SB2 presses, or master controller U3 exports a low level signal by crus secunda, the second relay K A2 coil obtains electric, the normally opened contact KA2-1 of the second relay K A2 is closed, Z axis capacitor height regulating controller U4 has just obtained cutting torch rising signals, makes laser cut torch increase.The Manual descending control of laser cut torch and Manual lifting are controlled similar, repeat no more.Above-mentioned control loop both can, at guidance panel manually with the action of button control YAG laser cutting machine cutting torch, move thereby also can control YAG laser cutting machine cutting torch by the corresponding actuating of relay of YAG laser cutting machine SECO when being controlled by digital control system.

YAG laser cutting machine, when work, arranges laser cutover machined parameters in advance in master controller U3.Add man-hour, master controller U3 Output of laser cutting timing control signal, the first sequential Output of laser capacitor height regulating device automatic signal makes Z axis capacitor height regulating controller U4 in auto state work, and laser cut torch drops to after 1 millimeter of workpiece height and no longer declines after setting delay time; In the second sequential, master controller U3 Output of laser cutting air blowing signal is opened air blowing magnetic valve (not drawing in Fig. 1,2); In the 3rd sequential, the optical gate control signal that Laser Power Devices are controlled in master controller U3 output makes Laser Power Devices enable work, the delay adjustments time, master controller U3 starts to control diaxon servomotor interlock even running, cut workpiece by X-axis servo controller U1 and Y-axis servo controller U2.

The YAG laser cutting machine Z axis capacitance raising system the utility model proposes, it is a kind of direct current motor type Z axis capacitance raising system, it is the improvement to original servomotor type Z axis capacitance raising system, with the comparison of servomotor type Z axis capacitance raising system, save more impulse circuit and control, control circuit is simple, be difficult for being interfered, hardware stability is high, and reliability is high, has high cost performance superiority.Can be on the whole the reliability of improving laser cutting machine lathe significantly, practical.The capacitor height regulating controller volume of direct current motor type Z axis capacitance raising system is small and exquisite, simple in structure, convenient installation.

Claims

1. a laser cutting machine Z axis capacitance raising system, comprises a Z axis capacitor height regulating controller U4, it is characterized in that:

The controlled end of described Z axis capacitor height regulating controller U4 connects a controlled input circuit (30), the control signal of output control circuit (20) output in the digital control system of this controlled input circuit (30) reception laser cutting machine, makes Z axis capacitor height regulating controller U4 be operated in auto state or manual mode;

The output of described Z axis capacitor height regulating controller U4 directly connects cutting torch lifting motor M3.

2. laser cutting machine Z axis capacitance raising system as claimed in claim 1, it is characterized in that: the input of described Z axis capacitor height regulating controller U4 connects a limited input circuit (40) the upper and lower spacing signal by limited input circuit (40) to Z axis capacitor height regulating controller U4 input cutting torch.

3. laser cutting machine Z axis capacitance raising system as claimed in claim 2, it is characterized in that: described limited input circuit (40) comprises upper limit position switch SQ1 and lower position switch SQ2, one end of one end of upper limit position switch SQ1 and lower position switch SQ2 is all connected with the input of Z axis capacitor height regulating controller U4, and the other end of the other end of upper limit position switch SQ1 and lower position switch SQ2 links together and is connected with the spacing common port of Z axis capacitor height regulating controller U4.

4. laser cutting machine Z axis capacitance raising system as claimed in claim 1, is characterized in that: described cutting torch lifting motor M3 is the direct current generator with reduction box.

5. the laser cutting machine Z axis capacitance raising system as described in claim 1,2,3 or 4, is characterized in that:

The digital control system of described laser cutting machine comprises master controller U3, and described master controller U3 connects X-axis servomotor M1 by X-axis servo controller U1, and described master controller U3 connects Y-axis servomotor M2 by Y-axis servo controller U2; Described master controller U3 connects an input control circuit (10), by input control circuit (10) to master controller U3 input emergent stop signal and dolly crossbeam at the limit signal of X-direction and cart end carriage the limit signal in Y direction;

Described master controller U3 connects an output control circuit (20), by output control circuit (20), to controlled input circuit (30) in Z axis capacitance raising system, send control signal, to control the duty of described Z axis capacitor height regulating controller U4.

6. laser cutting machine Z axis capacitance raising system as claimed in claim 5, is characterized in that:

Described output control circuit (20) comprises the coil of the first relay K A1, the coil of the coil of the second relay K A2, the 3rd relay K A3, the first button SB1, the second button SB2, the 3rd button SB3;

Described controlled input circuit (30) comprises the first normally opened contact KA1-1 of the first relay K A1, the normally opened contact KA3-1 of the normally opened contact KA2-1 of the second relay K A2, the 3rd relay K A3;

7. laser cutting machine Z axis capacitance raising system as claimed in claim 6, it is characterized in that: described output control circuit (20) also comprises heightens automatic pilot lamp SB1-1, describedly heighten one end of automatic pilot lamp SB1-1 and the positive potential end of the first dc source is connected, the other end connects the zero potential end of the first dc source by the second normally opened contact KA1-2 of the first relay K A1.

8. laser cutting machine Z axis capacitance raising system as claimed in claim 5, it is characterized in that: described input control circuit (10) comprises a scram button SB0, one end of described scram button SB0 connects the zero potential end of the first dc source, and the other end is connected with one end of the normally opened contact KA4-1 of the 4th relay K A4; The other end of the normally opened contact KA4-1 of the 4th relay K A4 connects the input control end of master controller U3 by the normally opened contact KA5-1 of the 5th relay K A5;

One end of the 4th relay K A4 coil connects the positive potential end of the first dc source, and the other end connects the alarm end of X-axis servo controller U1;

One end of the 5th relay K A5 coil connects the positive potential end of the first dc source, and the other end connects the alarm end of Y-axis servo controller U2.

9. laser cutting machine Z axis capacitance raising system as claimed in claim 8, is characterized in that: described input control circuit (10) also comprises the first photoelectricity approach switch IPS1, the second photoelectricity approach switch IPS2, the 3rd photoelectricity approach switch IPS3, the 4th photoelectricity approach switch IPS4;