CN2772710Y

CN2772710Y - Friction monitor of welder

Info

Publication number: CN2772710Y
Application number: CN 200520028440
Authority: CN
Inventors: 陈秀香; 冯金海; 刘兴家; 于滨
Original assignee: CHANGCHUN CNC MACHINE TOOL Co Ltd
Current assignee: CHANGCHUN CNC MACHINE TOOL Co Ltd
Priority date: 2005-03-30
Filing date: 2005-03-30
Publication date: 2006-04-19
Anticipated expiration: 2015-03-30

Abstract

The utility model relates to a friction monitor of a welding machine, which belongs to the electromechanical field; a pressure sensor is directly connected to a main cylinder; a coder is directly connected ot the main shaft; output signals passing through the terminal board enter a data collection card and then is delivered to a computer system; the data do comparison with the set parameter of the computer system to monitor pressure and rotation number; a grating scale is connected to a slide table, and signals output by the grating scale are delivered to a digital display table and then the signals passing through an RS232 interface are delivered to the computer system by the digital display table; friction shortening quantity is controlled by computer analysis and judgment; an input output card of a relay is connected with a programmable controller PLC by the terminal board to collect the state of input and output work of the welding machine, and thus the welding machine is controlled. The utility model has the advantages of direct viewing of work process, high respond speed, simple installation and operation, easy maintenance, and stable and reliable operation, and related data and parameters can be displayed in time and stored in the computer.

Description

The friction-welding machine supervising device

Technical field

The utility model relates to electrical category, particularly a kind of friction-welding machine supervising device.

Background technology

Friction-welding machine is applicable to that an end is a revolving meber, with not moving part welding of the other end, pressurize by spindle cylinder, realize the welding of two kinds of workpiece, in welding process, two workpiece are clipped in respectively in rolling clamp and the mobile anchor clamps, rotate by the driven by motor rolling clamp, mobile anchor clamps promote slide unit by master cylinder and advance, contact with revolving the folder workpiece then, friction, pressurizes, treat certain hour after, friction finishes, certain dwell time is passed through in the pressurize of beginning upset again, and anchor clamps unclamp workpiece, slide unit is return, and welding is finished; In this course of work, master cylinder pressure during welding machine work and the actual speed of main shaft can not show, the shortening amount of weldment is energy measurement and control not, the parameter of welding is all set by experience, is unfavorable for accurately controlling welding parameter, reduces welding qualified products rate, at present under intense market competition, the user is to the course of work visualize of friction-welding machine, and more and more higher to the demonstration directly perceived and the control requirement of important parameter in the welding process, friction-welding machine just presses for a kind of supervising device.

The utility model content

According to the purpose of this utility model, shortcoming at existing friction-welding machine existence, a kind of friction-welding machine supervising device is provided, its structure is that encoder is connected on the main shaft, directly be connected pressure sensor on the master cylinder, computer system is gathered pressure and rotary speed data and computer system settings parameter value by data collecting card and is compared in real time, judges and show, link to each other with programmable controller (PLC) by the relay input-output card again, gather the friction-welding machine duty, reach control friction-welding machine; In addition, the grating chi is installed on the slide unit, and the data that the grating chi will record on the slide unit send digital display meter to, and computer system enters computer by the data that the RS232 interface will read digital display meter, carry out data processing, calculating by computer software, thereby reach control workpiece friction shortening amount;

Work control mode of the present utility model has two kinds, and the one, autocontrol mode, the 2nd, monitor mode, these two kinds of working methods are selected by panel-switch;

When panel-switch was chosen as the automatic control control mode, PLC sent into computer with signal by the relay input-output card, and this computer-chronograph receives signal, judged that supervising device is in automatic control state; Its course of work is as follows: the pressure that a route data capture card collects, the data of rotating speed deposit computer in; Another route grating chi imports the data of digital display meter into, deposits computer in through the RS232 interface, and computer compares parameter value set in these data and the computer system and bound, analyze, then output alarm information and demonstration; Third Road deposits the duty of friction-welding machine in computer system through the relay input-output card by programmable controller PLC, and computer system is according to the real-time display working condition of signal that receives;

When panel-switch is chosen as monitoring, need be provided with picture setting pressure, rotary speed parameter value and bound this moment in the computer system parameter, and selection is control computer time or computer displacement control, when being chosen as when controlling computer time, fraction time, dwell time and their bound need be set, when selecting computer bit to move control, friction shortening amount, dwell time need be set, total displacement shortening amount and their bound; Its course of work is: when two workpiece begin contact friction, send friction signal by pressure sensor and give PLC, by PLC output friction signal, import computer into again through the relay input-output card, computer is received friction signal, if control computer time, computer-internal picks up counting, when fraction time arrives, computer feeds back to PLC with signal by the relay input-output card, stop friction by the PLC output signal, transfer upset to, packing stage; If computer displacement control, judge that the grating chi imports digital display meter deposits computer in through the RS232 interface data into and whether equates with the friction shortening amount of computer system settings, if equate that computer feeds back to PLC with signal by the relay input-output card, by the PLC output signal, stop friction and transfer the upset packing stage to; When computer is received friction signal, the data of pressure sensor and encoder output enter data collecting card and import computer into, directly show on computers, arrive when the dwell time, computer sends signal by the relay input-output card and imports PLC into, sends end signal by PLC again, whole welding process finishes, computer puts, analyzes, judges that with gathering the data of coming in the whole process output shows that corresponding curve draws then in order.

Advantage of the present utility model is: the course of work is directly perceived, and response speed is fast, and related data and parameter can show and deposit in the computer in real time, and fitting operation is simple, easy care, and working stability is reliable.

Description of drawings:

Fig. 1 is a structured flowchart of the present utility model;

Fig. 2 is the utility model computer program structure block diagram;

Fig. 3 is the utility model computer program FB(flow block);

Fig. 4 is an electrical schematic diagram of the present utility model.

The specific embodiment:

To shown in the accompanying drawing 4, the utility model mainly is made up of pressure sensor 4, encoder 5, grating chi 6, digital display meter 7, data collecting card 3, relay input-output card 2, panel-switch 1, programmable controller (PLC) 11, slide unit 10, master cylinder 8, main shaft 9, terminal board 12, terminal board 13 and computer control system as accompanying drawing 1;

Wherein, pressure sensor 4 directly is connected on the master cylinder 8, and encoder 5 directly is connected on the main shaft 9, and the signal of output enters data collecting card 3 through terminal board 13 and imports computer system again into, these data are compared with the parameter that computer system sets, and realize the monitoring to pressure and rotating speed; Grating chi 6 is connected on the slide unit 10, and the signal of output imports in the digital display meter 7, imports computer system by digital display meter 7 into through the RS232 interface again, through Computer Analysis, judgement, realizes the control to the friction shortening amount; Relay input-output card 2 links to each other with programmable controller (PLC) 11 by terminal board 12, gathers welding machine input and output duty, realizes the control of butt welding machine.

The control mode of friction-welding machine supervising device has two kinds, and the one, autocontrol mode, the 2nd, monitor mode; Dual mode is selected by panel-switch 1;

When panel-switch 1 is chosen as the automatic control control mode, PLC11 enters relay input-output card 2 with signal by terminal board 12, this computer-chronograph is gathered the signal that comes by relay input-output card 2 and is judged that supervising device is in automatic control state, the course of work is as follows: the signal that a routing pressure sensor 4 and encoder 5 send enters data collecting card 3 computer of restoring through terminal board 13, another route grating chi 6 imports the data of digital display meter 7 into, deposit computer in through the RS232 interface, computer compares parameter value set in these data and the computer system and bound, analyze, then output alarm information and demonstration; Third Road enters relay input-output card 2 with the duty of friction-welding machine through terminal board 12 by programmable controller PLC11 and imports computer into, and computer system is according to the real-time display working condition of signal that receives.

When panel-switch 1 is chosen as monitoring, need be provided with picture setting pressure, rotary speed parameter value and bound this moment in the computer system parameter, and selection is control computer time or computer displacement control, when being chosen as when controlling computer time, fraction time, dwell time and their bound need be set, when selecting computer bit to move control, friction shortening amount, dwell time, total displacement shortening amount and their bound need be set; Its course of work is: send friction signal by pressure switch and give PLC11 when two workpiece begin contact friction, again by PLC11 output friction signal, enter relay input-output card 2 by terminal board 12 and import computer into, computer receives friction signal, if control computer time, computer-internal picks up counting, when fraction time arrives, computer feeds back to PLC11 by relay input-output card 2 through terminal board 12 with signal, by the PLC11 output signal, stop friction, transfer the upset packing stage to; If computer displacement control, judge that grating chi 6 imports digital display meter 7 deposits computer in through the RS232 interface data into and whether equates with the friction shortening amount of computer system settings, if equate, computer feeds back to PLC11 by relay input-output card 2 through terminal board 12 with signal, by the PLC11 output signal, stop friction, transfer the upset packing stage to, when computer receives friction signal, the data of pressure sensor 4 on the master cylinder 8 and 5 outputs of the encoder on the main shaft 9, enter data collecting card 3 through terminal board 13 and import computer into, directly show on computers; Arrive when the upset dwell time, computer sends signal by relay input-output card 2 through terminal board 12 and gives PLC11, and by PLC11 end of output signal, whole welding process finishes; Computer puts, analyzes, judges that with gathering the data of coming in the whole process output shows then, corresponding curve draws in order.

Claims

1, a kind of friction-welding machine supervising device, form by pressure sensor, encoder, grating chi, digital display meter, data collecting card, relay input-output card, panel-switch, programmable controller PLC, slide unit, master cylinder, main shaft, terminal board and computer control system, it is characterized in that: pressure sensor directly is connected on the master cylinder, encoder directly is connected on the main shaft, and the signal of output enters data collecting card through terminal board and imports computer system again into; These data are compared with the parameter that computer system sets, and realize the monitoring to pressure and revolution; The grating chi is connected on the slide unit, and the signal of its output imports in the digital display meter, imports computer system by digital display meter into through the RS232 interface again, realizes the control to the friction shortening amount through Computer Analysis, judgement; The relay input-output card links to each other with programmable controller PLC by terminal board, gathers welding machine input and output duty, realizes the control of butt welding machine.