CN215699002U

CN215699002U - Steel member welding device

Info

Publication number: CN215699002U
Application number: CN202121685973.5U
Authority: CN
Inventors: 殷学军; 赵桂清; 郭志华
Original assignee: Yangzhou Yongsheng Steel Structure Engineering Co ltd
Current assignee: Yangzhou Yongsheng Steel Structure Engineering Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-02-01
Anticipated expiration: 2031-07-23

Abstract

The utility model discloses a steel member welding device which comprises a box body, a fixing mechanism, a positioning and pressing mechanism and a welding mechanism, wherein the fixing mechanism is arranged on the box body; a box body: the left side of an opening in the middle of the front surface of the box body is hinged with a rotating door through a hinge, and the middle of the inner wall of the box body is fixedly connected with a supporting plate; a fixing mechanism: which are symmetrically arranged at the left and right sides of the upper surface of the supporting plate; positioning and pressing mechanism: it includes motor, eccentric wheel, spring, adjustable shelf, U-shaped board, pulley and connecting rod, motor symmetry fixed connection is in the inner wall upper end left and right sides of box, the equal fixedly connected with eccentric wheel of terminal surface before the output shaft of motor, adjustable shelf symmetry fixed connection is in the inner wall of box, the equal sliding connection in middle part of adjustable shelf has the connecting rod, the top of connecting rod all is equipped with the circular slice, the outside upper end of connecting rod is located to the equal cover of spring, this steel member welding set can pinpoint and dock fast, in time takes away the welding slag, guarantees welding quality.

Description

Steel member welding device

Technical Field

The utility model relates to the technical field of steel member welding processing, in particular to a steel member welding device.

Background

Welding, also called fusion welding, is a manufacturing process and technology for joining metal or other thermoplastic materials such as plastics in a heating, high-temperature or high-pressure mode, most of the existing steel member processing technologies adopt manual welding processing or are assisted by special welding equipment, two workpieces are fixedly butted in welding, the seam is jointed at high temperature, the processing efficiency is low, meanwhile, workers process steel materials by using a welding gun in an open field, sparks splash around during welding easily hurt workers, meanwhile, the welding process is also a fire hazard, meanwhile, the workers cannot accurately position and quickly butt joint, stable guide supports are not arranged in the butt joint process, deviation or random movement during butt joint cannot be avoided, and further, the problem that the quality of a welded product cannot be influenced due to the fact that a welding port cannot be aligned due to the fact that the steel member moves back and forth in the welding process cannot be prevented, structural design is reasonable inadequately, and the welding position needs personnel to remove the work piece, has increased personnel's work burden intangibly, can not in time take away the welding slag, can't guarantee welding quality, for this reason, we propose a steel member welding set.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the existing defects, and provides a steel member welding device which can accurately position and quickly butt joint, timely remove welding slag, ensure welding quality and effectively solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a steel member welding device comprises a box body, a fixing mechanism, a positioning and pressing mechanism and a welding mechanism;

a box body: the left side of an opening in the middle of the front surface of the box body is hinged with a rotating door through a hinge, and the middle of the inner wall of the box body is fixedly connected with a supporting plate;

a fixing mechanism: which are symmetrically arranged at the left and right sides of the upper surface of the supporting plate;

positioning and pressing mechanism: the electric power box comprises a motor, eccentric wheels, springs, a movable frame, U-shaped plates, pulleys and connecting rods, wherein the motor is symmetrically and fixedly connected to the left side and the right side of the upper end of the inner wall of a box body;

the welding mechanism is as follows: it is arranged in the center of the interior of the box body;

wherein: still include control switch group, control switch group sets up the front surface upper end in the box, external power source is connected to control switch group's input electricity, control switch group's output electricity connecting machine's input, can pinpoint and quick butt joint, can stabilize the direction in butt joint process, skew or wantonly do when avoiding the butt joint, prevent that the steel member from leading to the welding mouth can't align and influence the welding quality at welding process back-and-forth movement, structural design is reasonable, carry out the welding operation of different positions high-efficiently, personnel's work burden has been alleviateed, can in time take away the welding slag, guarantee welding quality, and provide a relatively inclosed welding environment, avoid the spark among the welding process to spatter and cause personnel's injury or cause the conflagration all around.

Further, fixed establishment includes that the regulation props up piece, accommodate the lead screw, butt joint push pedal and bar groove, the upper surface left and right sides in the backup pad is seted up to the bar groove symmetry, and the inside of bar groove all is connected with accommodate the lead screw through the bearing rotation, and accommodate the lead screw's outside end all extends to the outside of box, and the equal threaded connection in middle part of accommodate the lead screw has the regulation to prop up the piece, adjusts the slider of propping up a piece both sides and the spout sliding connection of bar groove lateral wall, adjusts the upper end of propping up the piece and extends to the top of bar groove and be equipped with the butt joint push pedal in end department, can realize fixed to steel.

Furthermore, knobs are arranged at the ends of the outer sides of the adjusting screw rods, and therefore operation of personnel is facilitated.

Further, welding mechanism includes first electric telescopic handle, rectangle deckle board, movable block, second electric telescopic handle and laser welding head, rectangle deckle board fixed connection is in the inner wall upper end of box, first electric telescopic handle fixed connection is in the back wall of rectangle deckle board, movable block fixed connection is in first electric telescopic handle's flexible end front side, the groove is seted up in the inside of rectangle deckle board through slider sliding connection in movable block both ends, the bottom fixedly connected with second electric telescopic handle of movable block, second electric telescopic handle's bottom fixedly connected with laser welding head, first electric telescopic handle, the equal electric connection control switch of input of second electric telescopic handle and laser welding head organizes the output, through electric drive welding, and work efficiency is improved.

Furthermore, welding mechanism still includes the filtration hole, the middle part of evenly seting up in the backup pad of filtration hole can the rapid processing impurity.

Further, still include the air inlet net, the air inlet net all passes through bolt fixed connection in the upper surface air intake department of box, for the inside air that provides of box.

Further, still include the air exhauster, draw the gate, pour opening and filter screen, the air exhauster sets up in the right flank bottom of box, the air intake of air exhauster passes through the tuber pipe and links to each other with the right flank air outlet of box, pour opening sets up in the front surface bottom of box, draw gate sliding connection in the inside sliding tray of pour opening, the right-hand member that draws the gate extends to the right side of box, the filter screen sets up in the inside of box, the filter screen is from the back to preceding downward sloping, the filter screen is located the top of the tuber pipe of air exhauster, the bottom of filter screen and the bottom of pouring opening keep level, make things convenient for personnel to collect the processing waste material.

Furthermore, the steel plate positioning device further comprises a limiting plate, wherein the limiting plate is fixedly connected to the rear end of the upper surface of the supporting plate and plays a role in positioning steel.

Compared with the prior art, the utility model has the beneficial effects that: this steel member welding set has following benefit:

1. the revolving door is opened, two steel components to be welded are placed on the left side and the right side of the upper surface of the supporting plate, the rear ends of the two steel components are pushed to be tightly attached to the limiting plate, rear end positioning is realized, the motor is started through regulation and control of the regulation and control switch group, the output shaft rotates to drive the eccentric wheel to rotate, when the eccentric wheel moves from the proximal end to the distal end, the cambered surface of the eccentric wheel presses the circular sheet at the top end of the connecting rod, the spring compresses downwards, the U-shaped plate and the pulley move downwards gradually to press the steel components corresponding to the two sides, the pulley can rotate longitudinally to ensure subsequent pushing and butt joint, the structural design is reasonable, the pulley is pressed and held to a certain extent, deviation or random movement during butt joint can be avoided, the condition that the welding port cannot be aligned to influence the quality of a welded product due to the fact that the steel components move back and forth in the welding process is prevented, the butt joint push plates are symmetrically distributed in the original state, and the knob is manually rotated at the same amplitude, accommodate the lead screw begins to rotate, because accommodate the lead screw's middle part and an adjusting support block threaded connection, the slider of an adjusting support block both sides and the spout sliding connection of bar groove lateral wall to drive an adjusting support block and the removal of butt joint push pedal, can pinpoint and dock fast, can stabilize the direction at the butt joint in-process, skew or wantonly are disorderly avoided docking, prevent that the steel member from leading to the welding mouth can't align and influence the welding quality at welding in-process back-and-forth movement, structural design is reasonable.

2. Two steel members can be simultaneously with range removal butt joint to laser welding head under, control switch group adjusts the distance that laser welding head and steel member were adjusted to the second electric telescopic handle afterwards, after adjusting, the laser welding head operation realizes the laser welding operation, then when adjusting longitudinal position, the flexible of the first electric telescopic handle of accessible adjustment, drive the longitudinal sliding of movable block in the rectangle framed panel and carry out the welding operation of steel member different positions, through the electric drive welding, and the work efficiency is improved, can carry out the welding operation of different positions high-efficiently, personnel's work burden has been alleviateed.

3. The revolving door is closed in the welding process, the welding condition is observed through the observation window in the middle of the revolving door, the exhaust fan is opened in the welding process, the air in the box body is pumped away through the air pipe, because the pressure of the gas is reduced, the external gas is pumped in after being filtered by the air inlet net, the internal gas and the welding slag connected with the internal gas fall into the filter net through the filter holes, because the filter screen is positioned above the air pipe of the exhaust fan, the welding slag can be retained and collected on the filter screen, the second electric telescopic rod is adjusted to realize the ascending of the laser welding head after the welding is finished, then the steel member is loosened by adjusting the knob, after the welding operation is finished, the pulling gate can be pulled open regularly, the collected welding discharge is processed uniformly through the pouring opening, welding slag can be pumped away in time, welding quality is guaranteed, and a relatively closed welding environment is provided, so that personnel injury or fire caused by spark splashing in the welding process is avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic internal cross-sectional view of the present invention;

FIG. 3 is a schematic internal cross-sectional view of a positioning and clamping mechanism and a welding mechanism of the present invention;

fig. 4 is a schematic view of the internal cross-sectional structure of the fixing mechanism of the present invention.

In the figure: the device comprises a box body 1, a rotating door 2, an exhaust fan 3, a control switch group 4, an air inlet net 5, a fixing mechanism 6, an adjusting support block 61, an adjusting screw rod 62, a butt joint push plate 63, a bar-shaped groove 64, a positioning and pressing mechanism 7, a motor 71, an eccentric wheel 72, a spring 73, a movable frame 74, a U-shaped plate 75, a pulley 76, a connecting rod 77, a welding mechanism 8, a first electric telescopic rod 81, a rectangular frame plate 82, a movable block 83, a second electric telescopic rod 84, a laser welding head 85, a filtering hole 86, a pulling gate 9, a pouring opening 10, a filtering net 11, a supporting plate 12, a limiting plate 13 and a knob 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present embodiment provides a technical solution: a steel member welding device comprises a box body 1, a fixing mechanism 6, a positioning and pressing mechanism 7 and a welding mechanism 8;

a box body 1: the left side of an opening in the middle of the front surface of the box body is hinged with a rotating door 2 through a hinge, the rotating door 2 is convenient for taking and placing materials, welding operation is performed in a relatively closed environment, a supporting plate 12 is fixedly connected to the middle of the inner wall of the box body 1, and the supporting plate 12 provides a welding platform and an installation place of an upper structure;

the fixing mechanism 6: the adjusting mechanism is symmetrically arranged on the left side and the right side of the upper surface of a supporting plate 12, the fixing mechanism 6 comprises an adjusting support block 61, an adjusting screw rod 62, a butt-joint push plate 63 and a strip-shaped groove 64, the strip-shaped groove 64 is symmetrically arranged on the left side and the right side of the upper surface of the supporting plate 12, the adjusting screw rod 62 is rotatably connected inside the strip-shaped groove 64 through a bearing, the end head of the outer side of the adjusting screw rod 62 extends to the outside of the box body 1, the adjusting support block 61 is in threaded connection with the middle of the adjusting support block 61, sliding blocks on the two sides of the adjusting support block 61 are in sliding connection with sliding grooves on the side wall of the strip-shaped groove 64, the upper end of the adjusting support block 61 extends to the upper side of the strip-shaped groove 64, the butt-joint push plate 63 is arranged at the end head of the outer side of the adjusting screw rod 62, a knob 14 is manually rotated, the adjusting screw rod 62 starts to rotate, the middle of the adjusting screw rod 62 is in threaded connection with the adjusting support block 61, the sliding blocks on the two sides of the adjusting support block 61 are in sliding connection with the sliding grooves on the side wall of the strip-shaped groove 64, thereby driving the adjusting support block 61 and the butt joint push plate 63 to move inwards, accurately butting the two limited steel members, realizing secondary clamping and fixing of the steel members after butting, and avoiding the influence on welding quality caused by the fact that welding cannot be smoothly finished due to the movement of the steel members;

positioning and pressing mechanism 7: the device comprises a motor 71, an eccentric wheel 72, springs 73, a movable frame 74, a U-shaped plate 75, pulleys 76 and a connecting rod 77, wherein the motor 71 is symmetrically and fixedly connected to the left side and the right side of the upper end of the inner wall of a box body 1, the eccentric wheel 72 is fixedly connected to the front end face of an output shaft of the motor 71, the movable frame 74 is symmetrically and fixedly connected to the inner wall of the box body 1, the connecting rod 77 is slidably connected to the middle of the movable frame 74, round plates are arranged at the top end of the connecting rod 77, the springs 73 are sleeved at the upper end of the outer portion of the connecting rod 77, the upper ends of the springs 73 are fixedly connected to the bottom surfaces of the round plates, the lower ends of the springs 73 are fixedly connected to the upper surface of the movable frame 74, the U-shaped plate 75 is respectively arranged at the bottom end of the connecting rod 77, the pulleys 76 are rotatably connected to the inner portion of the U-shaped plate 75 through pin shafts, the motor 71 is started, the output shaft rotates to drive the eccentric wheel 72 to rotate, when the eccentric wheel 72 moves from the proximal end to the distal end, the arc surface of the eccentric wheel presses the round plate at the top end of the connecting rod 77, the spring 73 is compressed downwards, the U-shaped plate 75 and the pulley 76 move downwards gradually to press steel members corresponding to two sides, the pulley 76 can rotate longitudinally to ensure subsequent pushing butt joint, the structural design is reasonable, the pulley 76 can be pressed and held to a certain extent to avoid deviation or random movement during butt joint, the problem that welding quality is affected due to the fact that welding openings cannot be aligned due to the fact that the steel members move back and forth in the welding process is solved, after welding is completed, the motor 71 is started, the output shaft rotates to drive the eccentric wheel 72 to rotate, when the eccentric wheel 72 moves from the far center end to the near center end, the bottom end cambered surface of the eccentric wheel 72 rises relatively, under the elastic action of the spring 73, the connecting rod 77, the U-shaped plate 75 and the pulley 76 can be bounced gradually to loosen the pressing of the steel members;

the welding mechanism 8: which is arranged at the center of the interior of the box body 1, the welding mechanism 8 comprises a first electric telescopic rod 81, a rectangular frame plate 82, a movable block 83, a second electric telescopic rod 84 and a laser welding head 85, the rectangular frame plate 82 is fixedly connected to the upper end of the inner wall of the box body 1, the first electric telescopic rod 81 is fixedly connected to the rear wall of the rectangular frame plate 82, the movable block 83 is fixedly connected to the front side of the telescopic end of the first electric telescopic rod 81, two ends of the movable block 83 are slidably connected to the interior of the rectangular frame plate 82 through sliders, the bottom of the movable block 83 is fixedly connected with the second electric telescopic rod 84, the bottom of the second electric telescopic rod 84 is fixedly connected with the laser welding head 85, the input ends of the first electric telescopic rod 81, the second electric telescopic rod 84 and the laser welding head 85 are electrically connected with the output end of the control switch group 4, the welding mechanism 8 further comprises a filtering hole 86, the filtering hole 86 is uniformly formed in the middle of the support plate 12, the distance between the laser welding head 85 and the steel member is adjusted by adjusting the second electric telescopic rod 84, after the adjustment is completed, the laser welding head 85 operates to realize laser welding operation, then when the longitudinal position is adjusted, the longitudinal sliding of the movable block 83 in the rectangular frame plate 82 is driven by adjusting the extension and retraction of the first electric telescopic rod 81 to carry out welding operation on different positions of the steel member, and the welding is driven by electric power, so that the working efficiency is improved;

wherein: still include control switch group 4, control switch group 4 sets up in the front surface upper end of box 1, and external power source is connected to control switch group 4's input electricity, and motor 71's input is connected to control switch group 4's output electricity, comes to supply power for the mechanism through regulation and control switch group 4, guarantees whole equipment normal operating.

Wherein: still include air inlet net 5, air inlet net 5 all plays the filterable effect of the air inlet of taking a breath in the upper surface air inlet department of box 1 through bolt fixed connection.

Wherein: the welding device also comprises an exhaust fan 3, a drawing gate 9, a pouring opening 10 and a filter screen 11, wherein the exhaust fan 3 is arranged at the bottom of the right side face of the box body 1, an air inlet of the exhaust fan 3 is connected with an air outlet of the right side face of the box body 1 through an air pipe, the pouring opening 10 is arranged at the bottom of the front surface of the box body 1, the drawing gate 9 is connected with a sliding groove in the pouring opening 10 in a sliding manner, the right end of the drawing gate 9 extends to the right side of the box body 1, the filter screen 11 is arranged in the box body 1, the filter screen 11 inclines downwards from back to front, the filter screen 11 is positioned above the air pipe of the exhaust fan 3, the bottom of the filter screen 11 is flush with the bottom of the pouring opening 10, the exhaust fan 3 is opened in the welding process, air in the box body 1 is pumped away through an air pipe, external air is pumped in after being filtered through the air inlet screen 5 due to the reduction of air pressure, the internal air and welding slag in the internal air and the welding slag are dropped onto the filter screen 11 through a filter hole 86, because filter screen 11 is located the top of the tuber pipe of air exhauster 3, the welding slag can be detained on filter screen 11 and collect, and welding operation accomplishes the back, regularly can pull open and draw gate 9, and the welding discharge that will collect is unified to be handled through pouring opening 10.

Wherein: the steel structure supporting plate further comprises a limiting plate 13, the limiting plate 13 is fixedly connected to the rear end of the upper surface of the supporting plate 12, and when the steel structure supporting plate is used, the rear ends of the two steel members are pushed to be tightly attached to the limiting plate 13, so that rear end positioning is achieved.

The working principle of the steel member welding device provided by the utility model is as follows: when in use, the revolving door 2 is opened, two steel components to be welded are placed on the left side and the right side of the upper surface of the supporting plate 12, the rear ends of the two steel components are pushed to be tightly attached to the limiting plate 13, rear end positioning is realized, the motor 71 is started through regulation and control of the regulation and control switch group 4, the output shaft rotates to drive the eccentric wheel 72 to rotate, when the eccentric wheel 72 moves from the proximal end to the distal end, the cambered surface of the eccentric wheel presses the circular sheet at the top end of the connecting rod 77, the spring 73 is compressed downwards, the U-shaped plate 75 and the pulley 76 gradually move downwards to press the steel components corresponding to the two sides, the pulley 76 can rotate longitudinally to ensure subsequent pushing and butt joint, the structural design is reasonable, the pressing and holding of the pulley 76 can avoid deviation or random movement during butt joint to a certain degree, the phenomenon that welding openings cannot be aligned to influence the quality of a welded product due to the back and forth movement of the steel components in the welding process is prevented, and the push plates 63 are symmetrically distributed during the original state, meanwhile, the knob 14 is manually rotated in the same amplitude, the adjusting screw rod 62 starts to rotate, because the middle part of the adjusting screw rod 62 is in threaded connection with the adjusting support block 61, the sliding blocks on the two sides of the adjusting support block 61 are in sliding connection with the sliding grooves on the side walls of the strip-shaped grooves 64, the adjusting support block 61 and the butt joint push plate 63 are driven to move, two limited steel members can be accurately butted, secondary clamping and fixing of the steel members can be realized after butt joint, the welding quality is prevented from being influenced due to the fact that welding cannot be finished smoothly due to movement of the steel members, the two steel members can be simultaneously moved in the same amplitude and butted under the laser welding head 85, then the distance between the laser welding head 85 and the steel members is adjusted by adjusting the second electric telescopic rod 84, after the adjustment, laser welding head 85 operates to realize laser welding operation, and then when the longitudinal position is adjusted, the extension and retraction of the first electric telescopic rod 81 can be adjusted, the movable block 83 is driven to longitudinally slide in the rectangular frame plate 82 to weld different positions of a steel member, the work efficiency is improved through electric drive welding, the revolving door 2 is closed in the welding process, the welding condition is observed through an observation window in the middle of the revolving door, the exhaust fan 3 is started in the welding process, air in the box body 1 is pumped away through an air pipe, external air is pumped in after being filtered through the air inlet net 5 because the air pressure is reduced, the internal air and the slag brought together fall onto the filter screen 11 through the filter holes 86, the slag is retained and collected on the filter screen 11 because the filter screen 11 is positioned above an air pipe of the exhaust fan 3, after the welding is finished, the second electric telescopic rod 84 is adjusted to realize that the laser welding head 85 rises, then the steel member is loosened through the adjusting knob 14, the motor 71 is started, the output shaft rotates to drive the eccentric wheel 72 to rotate, and when the eccentric wheel 72 moves from the far end to the near end, the bottom end cambered surface rises relatively, under the elastic action of spring 73, can bounce connecting rod 77, U-shaped board 75 and pulley 76 gradually, loosen compressing tightly the steel member, personnel in time take away the welding the work piece of accomplishing away can, the welding operation of group steel member down is carried out to the operation more than repeating, and after welding operation accomplished, regular can pull open and draw gate 9, through pouring opening 10 with the welding discharge unified processing of collecting.

It should be noted that, as disclosed in the above embodiments, the exhaust fan 3 may be a CY125 centrifugal fan, the motor 71 may be a 51K60A-CF ac motor, the first electric telescopic rod 81 and the second electric telescopic rod 84 may be WDTP type electric push rods, the laser welding head 85 may be a YW52 laser welding head, and the control switch set 4 is provided with switch buttons which are in one-to-one correspondence with the exhaust fan 3, the motor 71, the first electric telescopic rod 81, the second electric telescopic rod 84 and the laser welding head 85 and are used for controlling the on-off operations thereof.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a steel member welding set which characterized in that: comprises a box body (1), a fixing mechanism (6), a positioning and pressing mechanism (7) and a welding mechanism (8);

case (1): the left side of an opening in the middle of the front surface of the box body is hinged with a rotating door (2) through a hinge, and the middle of the inner wall of the box body (1) is fixedly connected with a supporting plate (12);

fixing mechanism (6): which are symmetrically arranged at the left and right sides of the upper surface of the supporting plate (12);

positioning and pressing mechanism (7): which comprises a motor (71), an eccentric wheel (72), a spring (73), a movable frame (74), a U-shaped plate (75), a pulley (76) and a connecting rod (77), the motor (71) is symmetrically and fixedly connected to the left side and the right side of the upper end of the inner wall of the box body (1), the eccentric wheels (72) are fixedly connected to the front end faces of the output shaft of the motor (71), the movable frame (74) is symmetrically and fixedly connected to the inner wall of the box body (1), the connecting rods (77) are slidably connected to the middle of the movable frame (74), circular sheets are arranged at the top ends of the connecting rods (77), the springs (73) are sleeved on the upper ends of the outer portions of the connecting rods (77), the upper ends of the springs (73) are fixedly connected with the bottom surfaces of the circular sheets, the lower ends of the springs (73) are fixedly connected with the upper surfaces of the movable frame (74), U-shaped plates (75) are respectively arranged at the bottom ends of the connecting rods (77), and pulleys (76) are rotatably connected to the inner portions of the U-shaped plates (75) through pin shafts;

welding mechanism (8): which is arranged in the center of the interior of the box body (1);

wherein: still include control switch group (4), control switch group (4) set up in the front surface upper end of box (1), and external power source is connected to the input electricity of control switch group (4), and the input of motor (71) is connected to the output electricity of control switch group (4).

2. A steel member welding apparatus according to claim 1, wherein: fixed establishment (6) are including adjusting a piece (61), accommodate the lead screw (62), butt joint push pedal (63) and bar recess (64), both sides about the upper surface of backup pad (12) are seted up to bar recess (64) symmetry, and the inside of bar recess (64) all is connected with accommodate the lead screw (62) through the bearing rotation, and the outside end of accommodate the lead screw (62) all extends to the outside of box (1), and the equal threaded connection in middle part of accommodate the lead screw (62) has an adjust a piece (61), adjusts the slider of a piece (61) both sides and the spout sliding connection of bar recess (64) lateral wall, and the upper end of adjusting a piece (61) extends to the top of bar recess (64) and is equipped with butt joint push pedal (63) in end department.

3. A steel member welding apparatus according to claim 2, wherein: and knobs (14) are arranged at the outer end heads of the adjusting screw rods (62).

4. A steel member welding apparatus according to claim 1, wherein: the welding mechanism (8) comprises a first electric telescopic rod (81), a rectangular frame plate (82), a movable block (83), a second electric telescopic rod (84) and a laser welding head (85), rectangle frame board (82) fixed connection is in the inner wall upper end of box (1), first electric telescopic handle (81) fixed connection is in the back wall of rectangle frame board (82), movable block (83) fixed connection is in the flexible end front side of first electric telescopic handle (81), the groove is seted up in the inside of rectangle frame board (82) through slider sliding connection in movable block (83) both ends, the bottom fixedly connected with second electric telescopic handle (84) of movable block (83), the bottom fixedly connected with laser welding head (85) of second electric telescopic handle (84), first electric telescopic handle (81), the output of the equal electric connection control switch group of input (4) of second electric telescopic handle (84) and laser welding head (85).

5. A steel member welding apparatus according to claim 1, wherein: the welding mechanism (8) further comprises filtering holes (86), and the filtering holes (86) are uniformly formed in the middle of the supporting plate (12).

6. A steel member welding apparatus according to claim 1, wherein: still include air inlet net (5), air inlet net (5) all pass through bolt fixed connection in the upper surface air intake department of box (1).

7. A steel member welding apparatus according to claim 1, wherein: still include air exhauster (3), draw gate (9), pour opening (10) and filter screen (11) of dumping, air exhauster (3) set up in the right flank bottom of box (1), the air intake of air exhauster (3) passes through the tuber pipe and links to each other with the right flank air outlet of box (1), pour opening (10) and set up in the front surface bottom of box (1), draw gate (9) sliding connection in the inside sliding tray of pour opening (10), the right-hand member of drawing gate (9) extends to the right side of box (1), filter screen (11) set up in the inside of box (1), filter screen (11) from the back to preceding downward sloping, filter screen (11) are located the top of the tuber pipe of air exhauster (3), the bottom of filter screen (11) and the bottom of pouring opening (10) keep flat.

8. A steel member welding apparatus according to claim 1, wherein: the support plate is characterized by further comprising a limiting plate (13), wherein the limiting plate (13) is fixedly connected to the rear end of the upper surface of the support plate (12).