A kind of closed-type circular welding bead automatic arc welding
Technical field:
The invention belongs to carbon-dioxide arc welding connection technology field, it is related to a kind of closed-type circular welding bead automatic arc welding,
Have functions that welding efficiency is high and steady quality, special factory's batch weld job.
Background technology:
Welded in machinery manufacturing industry and generally use human weld or robot welding, manual welding efficiency is low, the amount of labour is big;
Robot welding quality is high, and welding is fast, but cost is too high, and manual welding and robotic welding technology are unsuitable for circular weldering
The welding manner in road.It is logical to produce that to use carbon dioxide be protective gas come shielded arc welding in electrode welding process, sometimes using CO2+Ar
Mixed gas, be mainly used in manual welding, it is high to the requirement of operator's technical merit however, manual welding welding quality unstable,
It is unsuitable for batch production high-volume to weld.Due to the Special Influence of the thermophysical property of carbon dioxide, normal welding electricity is used
During source, end of welding head fusing metal is not likely to form the axially free transition of balance, it usually needs using short circuit and molten drop necking down
It is quick-fried disconnected, therefore, free transitional face ratio is welded with MIG, to splash more, quality control is difficult.In electrode welding process produce smog and have
Evil light causes environmental pollution, and harm operating personnel are healthy.However, using robot welding, not only capital input is high, and
And complex structure, build are huge, movement is difficult, adaptability is poor, program input is cumbersome, and maintenance work is difficult, equally to operation
The requirement of workman's technical merit is high.Chinese patent 201020633579.2 discloses a kind of automatic welding device of circular weld bead, it by
Frame, CO2 shield welder, welding torch position manipulation device, Workpiece rotating device and welding control system composition, welding gun position
Put manipulation device to be made up of welding gun cylinder and welding gun support, welding gun cylinder is fixed in frame, welding gun branch is fixed on its piston rod
Frame;The Workpiece rotating device is made up of workpiece positioning seat, gear, tooth bar and racks cylinders, and the bottom of workpiece positioning seat is affixed
There is rotating shaft, rotating shaft is connected by bearing with gantry rotation;Gear is fixed in the rotating shaft of workpiece positioning seat, and rack and pinion is mutually nibbled
Close, and be connected with the piston rod of racks cylinders, but its solder for splashing influences welding quality.Additionally, existing circular welding bead electricity
Welding machine generally is open welding, it is impossible to avoid welding flue gas, welding light to environment and staff in welding process
Harm, in addition, easily being caused welding quality uneven by external ambient influnence in open welding process.Therefore, research and develop
A kind of automatic motor of circular welding bead, has functions that welding efficiency is high and steady quality, it is adaptable to which special factory's batch is welded
Operation, with good economic benefit and social value.
The content of the invention:
It is an object of the invention to the shortcoming for overcoming prior art to exist, seek to design a kind of closed-type circular welding bead automatic
Electric welding machine, it is to avoid the harm of flue gas, welding light to environment and staff is welded in circular welding bead electrode welding process, is solved
Automaticity is low during circular electric welding, the problem of welding quality unstable.
To achieve these goals, the agent structure the present invention relates to closed-type circular welding bead automatic arc welding includes work
Room, the first insulation board, the second insulation board, weld clamp device, workpiece tool plate, rotary drive motor, motor connection set, welding gun
Extension elongation adjustment switch, welding gun Height Adjustment switch, angle of welding gun adjustment switch, rotary drive motor adjustment of rotational speed switch, U
Type support frame, cylinder, expansion link, welding gun support arm, adjusting device for welding gun, welding gun, carbon dioxide snorkel, wire feeder, electricity
Machine and foot control switch;Second insulation board is fixedly installed in closed operating room, and it is exhausted that weld clamp device is fixedly installed on second
Listrium top, weld clamp device is provided with workpiece tool plate, and the rotary drive motor for being arranged at the second insulation board lower surface leads to
Motor connection set is crossed to be connected with weld clamp device and rotary drive motor bottom contacts with the insulation board of operating room's base plate first, work
Make room upper plate lower section and cylinder is fixedly connected with by U-shaped support frame, the expansion link bottom of cylinder is fixed with welding gun support arm and connected
Connect, the welding gun support arm other end is provided with welding gun by adjusting device for welding gun, right plate outside in operating room's is provided with welding gun and stretches out length
Degree adjustment switch, welding gun Height Adjustment switch, angle of welding gun adjustment switch and rotary drive motor adjustment of rotational speed switch, welding gun are high
Degree adjustment switch is connected the extension elongation of control expansion link with cylinder, and welding gun extension elongation adjustment switch and angle of welding gun adjustment are opened
Guan Jun is connected with adjusting device for welding gun, be respectively used to control welding gun support arm extension elongation and welding gun support arm and welding gun it
Between angle, wire feeder and motor are arranged on the outside of operating room;Wire feeder is connected with welding gun, carbon dioxide snorkel with
Welding gun is connected, and the supply of welding wire feeding rate and carbon dioxide is controlled by welding gun, and welding gun is by foot control switch and control
Motor electrically connects the operation of controlled motor.
Upper plate left side in operating room's of the present invention top is provided with the air inlet pipe communicated with operating room, on rear side of operating room
Supporting plate is provided with the pipe communicated with operating room, and air exhauster is provided with pipe;Air exhauster is opened by the weldering in operating room
Cigarette receiving gas is discharged by pipe.
Operating room's front side board of the present invention is made up of sideboard and fixed dam, and sideboard is provided with observer
Hole and handle;Welding gun support arm one end and centre position are flexibly connected for protecting by fix bar with U-shaped support frame bottom respectively
Hold welding gun support arm balance.
Welding gun extension elongation of the present invention adjustment switch, welding gun Height Adjustment switch, angle of welding gun adjustment switch and
Adjustment of rotational speed switch is electrically connected with PLC control ends respectively.
Compared with prior art, processing mode is welding gun pneumatic control to the present invention, and position is adjustable, and welding gun is fed into during welding
Position, clamping device is rotated by motor, completes welding;Peripheral hardware formula motor and welding wire feeding mechanism, are easy to radiate, are convenient for changing
Welding wire;Welding terminates, and original position is return in welding gun pneumatic control, gives Workpiece clamping headspace;PLC electrical equipment controls, time, speed
It is adjustable controllable, improve production efficiency;Eliminate that original operator's labour intensity is big, waste time and energy, hinder eye and electric welding smoke zone
Injury;Reduce electric welding smog and the solder influence welding quality for splashing;Welding quality is improved, the depth of weld is uniform;Its
Simple structure, scientific in principle reliability, it is easy to operate, control precisely, efficient low-consume, have a safety feature, it is with low cost;In addition first
The setting of insulation board and the second insulation board is prevented effectively from staff and is got an electric shock during use.
Brief description of the drawings:
Fig. 1 is the front view of sealed circular welding bead automatic arc welding of the present invention.
Fig. 2 is the top view of circular welding bead automatic arc welding of the present invention.
Specific embodiment:
Below by embodiment and with reference to accompanying drawing, the invention will be further described.
Embodiment:
As illustrated in fig. 1 and 2, the agent structure of the closed-type circular welding bead automatic arc welding that the present embodiment is related to includes work
Room 1, the first insulation board 2, the second insulation board 3, weld clamp device 4, workpiece tool plate 5, rotary drive motor 6, motor connection
Set 7, sideboard 8, fixed dam 9, observation manhole 10, handle 11, pipe 12, air exhauster 13, the adjustment of welding gun extension elongation
Switch 14, welding gun Height Adjustment switch 15, angle of welding gun adjustment switch 16, rotary drive motor adjustment of rotational speed switch 17, air inlet
Pipe 18, U-shaped support frame 19, cylinder 20, expansion link 21, welding gun support arm 22, fix bar 23, adjusting device for welding gun 24, welding gun 25,
Carbon dioxide snorkel 26, wire feeder 27, motor 28 and foot control switch 29;Second insulation board 3 is fixedly installed on closed work
Make in room 1, weld clamp device 4 is fixedly installed on the top of the second insulation board 3, weld clamp device 4 is provided with workpiece tool plate
5, be arranged at the rotary drive motor 6 of the lower surface of the second insulation board 3 by motor connection cover 7 be connected with weld clamp device 4 and
The bottom of rotary drive motor 6 contacts with the first insulation board of base plate 2 of operating room 1, and rotary drive motor 6 can drive workpiece tool plate
5 around rotary drive motor 6 vertical central shaft rotate, the upper plate of operating room 1 lower section gas is fixedly connected with by U-shaped support frame 19
Cylinder 20, the bottom of expansion link 21 of cylinder 20 is fixedly connected with welding gun support arm 22, and the other end of welding gun support arm 22 is adjusted by welding gun
Regulating device 24 is provided with welding gun 25, and the right plate of operating room 1 outside is provided with welding gun extension elongation adjustment switch 14, welding gun Height Adjustment
Switch 15, angle of welding gun adjustment switch 16 and rotary drive motor adjustment of rotational speed switch 17, welding gun Height Adjustment switchs 15 and gas
Cylinder 20 connection control expansion link 21 extension elongation, welding gun extension elongation adjustment switch 14 and angle of welding gun adjustment switch 16 with
Adjusting device for welding gun 24 is connected, and is respectively used to control the extension elongation and welding gun support arm 22 and welding gun 25 of welding gun support arm 22
Between angle, wire feeder 27 and motor 28 are arranged on the outside of operating room 1;Wire feeder 27 is connected with welding gun 25, dioxy
Change carbon snorkel 26 to be connected with welding gun 25, the supply of welding wire feeding rate and carbon dioxide, welding gun are controlled by welding gun 25
25 operations for electrically connecting controlled motor 28 with controlled motor 28 by foot control switch 29.
The upper plate left side of operating room 1 top that the present embodiment is related to is provided with the air inlet pipe 18 communicated with operating room, operating room 1
The supporting plate of rear side is provided with the pipe 12 communicated with operating room, pipe 12 and is provided with air exhauster 13;Open air exhauster 13
Welding flue gas in operating room 1 is discharged by pipe 12.
The front side board of operating room 1 that the present embodiment is related to is made up of sideboard 8 and fixed dam 9, and sideboard 8 is provided with
Observation manhole 10 and handle 11;The one end of welding gun support arm 22 and centre position pass through fix bar 23 and the bottom of U-shaped support frame 19 respectively
Portion is flexibly connected for keeping welding gun support arm 22 to balance.
Welding gun extension elongation adjustment switch 14, welding gun Height Adjustment switch 15, the angle of welding gun adjustment that the present embodiment is related to
Switch 16 and adjustment of rotational speed switch 17 are electrically connected with PLC control ends respectively.
When the present embodiment is used, the connecting shaft by handle 11 by sideboard 8 around fixed dam 9 and sideboard 8 is beaten
Open, part to be welded is placed on workpiece tool plate 5, first in PLC control ends input welding gun extension elongation, welding gun height, angle of welding gun
With the rotating speed of rotary drive motor 6, welding gun 25 is adjusted to suitable position by PLC control ends according to the numerical value of input, while driving
Dynamic rotary drive motor 6 drives workpiece to rotate, and the supply of welding wire feeding rate and carbon dioxide is controlled by welding gun 25, beats
Drive foot control switch 29 and complete welding;In welding process, the smog of generation is excluded from pipe 12 by the operation of air exhauster 13,
Welding situation can be observed by observing manhole 10;Situation adjusts welding parameter according to the observation, and butt welding taps into capable repairing.By adjusting
The rotating speed of whole welding gun extension elongation, welding gun height, angle of welding gun and rotary drive motor 6, realizes the circuit orbit of different-diameter
Welding.