CN209792833U - Special heat sealing machine for steel bars - Google Patents

Abstract

the utility model discloses a special welding machine for steel bars, which comprises a trolley, a welding head and a wire feeding mechanism, wherein the bottom of the trolley is provided with a pulley matched with a track; the welding machine head is movably arranged on the trolley through an adjusting mechanism, the welding machine head comprises a wire correcting mechanism, a conductive tube and a melting nozzle which are sequentially connected, the adjusting mechanism comprises an X-axis slide rail arranged on the trolley and a Z-axis slide rail arranged on the X-axis slide rail in a sliding manner, and the welding machine head is connected with the Z-axis slide rail in a sliding manner through a swinging device; wire feeder constructs including being fixed in the welding wire dish of keeping away from melting nozzle one side on the platform truck and set up in send a aircraft nose on the oscillator, the beneficial effect of above-mentioned scheme is: the welding head can be moved by the trolley in the welding process, so that the welding operation is more convenient; the welding machine is also provided with an adjusting mechanism, so that the position of the welding machine head can be conveniently and quickly adjusted in the welding process, and the welding nozzle can be aligned to the welding position of the steel bar.

Description

Special heat sealing machine for steel bars

Technical Field

The utility model relates to the field of welding technique, concretely relates to special heat sealing machine of rod iron.

background

The high-efficiency energy-saving welding of the section of the steel part is the development bottleneck of the metal processing industry. The main connection methods used at present are the following:

1. Opening a slope for multi-layer and multi-pass welding: and (3) after the connecting end surface of one steel piece (or two steel pieces) is beveled, filling the position of the beveled edge by using a gas shielded welding machine. The welding mode needs more preparation work (such as beveling by flame cutting on site), and the potential safety hazard is high; energy consumption and time consumption are low. The welding equipment adopts carbon dioxide gas as welding seam protective gas, needs manual welding operation on the welding seam, and has very high labor intensity and severe environment.

2. And (3) steel plate overlaying welding: separating the two end faces to be connected together by a certain distance, cutting a steel plate with the corresponding size and thickness generally between 6mm and 10mm, placing the steel plate between the two end faces to be connected, and welding the two ends of the steel plate with the two end faces respectively by using a gas shielded welding machine. The connection mode has the disadvantages of complicated preparation work, energy and material waste, many potential safety hazards and low efficiency. The operation environment is severe and the labor intensity is high.

3. Welding after heat generation by means of special materials: a certain gap is reserved between two end faces which need to be connected together, and the left, right and lower parts of the gap are made of heat-resistant materials to form a container with the two connecting end faces. The special chemical materials are placed in a special container to be heated until a reduction exothermic reaction (a large amount of harmful smoke is generated in the process), and then materials which are subjected to the reduction reaction are poured into the container between the two end faces, so that the two end faces are connected together. The danger coefficient of operators is high when the welding mode is used in certain environments (such as a factory), and the environment is severe.

The connection modes have the problems of complex process and severe operation environment.

SUMMERY OF THE UTILITY MODEL

to the defect among the prior art, the utility model provides a special heat sealing machine of rod iron can improve welding efficiency, and the operation process is safer, is favorable to operating workman's healthy more.

the utility model provides a pair of special heat sealing machine of rod iron, include:

The bottom of the trolley is provided with a pulley matched with the track;

the welding machine head is movably arranged on the trolley through an adjusting mechanism and comprises a wire correcting mechanism, a conductive tube and a melting nozzle which are sequentially connected, the adjusting mechanism comprises an X-axis slide rail arranged on the trolley and a Z-axis slide rail arranged on the X-axis slide rail in a sliding manner, and the welding machine head is connected with the Z-axis slide rail in a sliding manner through a swinging device;

Wire feeding mechanism, wire feeding mechanism including be fixed in the platform truck on keep away from the wire reel of melting nozzle one side and set up in send a aircraft nose on the oscillator, the wire reel through rotate the support set up in on the platform truck, send to be provided with wire inlet and wire outlet on the aircraft nose, through send a welding wire that the aircraft nose will be on the wire reel to send to welding machine head.

The wire correcting mechanism comprises a wire correcting vertical plate, a wire feeding pipe and a plurality of tensioning wheels, wherein the wire feeding pipe and the plurality of tensioning wheels are arranged on the wire correcting vertical plate from top to bottom, a wire groove is formed in the outer side of each tensioning wheel, the welding wire passes through the wire groove and is wound on the tensioning wheels, the tensioning wheels are arranged in a staggered mode, and the melting nozzle is fixedly connected with the lower end of the wire correcting vertical plate.

The welding head has two, two the welding head's structure is the same, the welding head through first installation riser with the oscillator rotates and is connected.

The beneficial effect of above-mentioned scheme does: the welding head and the matched equipment are integrally arranged by the trolley, the welding head can be moved by the trolley in the welding process, so that an operator is prevented from carrying the welding head and the matched equipment manually, the welding operation is more convenient, and the welding head is particularly suitable for end face fusion of steel bars or steel plates with the diameter of 50mmx50 mm; in order to make the adaptability of welding head stronger, can carry out accurate welding to the different positions of rod iron or steel sheet, this technical scheme has still set up the adjustment mechanism including X axle slide rail and Z axle slide rail, can accurately adjust the spatial position of welding head at the welded in-process for the nozzle of welding head can aim at the welding position of rod iron or steel sheet with the optimum angle. The wire feeding pipe can straighten the welding wire sent by the wire feeding machine head, and the arranged tension wheel can prevent the welding wire from loosening and knotting in the process of feeding the welding wire to the welding machine head. Two welding heads are integrated into the trolley, so that the welding speed and efficiency can be improved.

Further, the trolley comprises a chassis and a protective cover arranged on the chassis, and a mechanism on the chassis is protected by the protective cover. The protective cover can protect the welding head and the supporting facilities thereof and avoid being covered by splashed sparks in the welding process. The protective cover can also be used for welding a machine head to collide with other workpieces.

Furthermore, the bottom of the Z-axis slide rail is sleeved on the X-axis slide rail through a slide block, a first motor used for driving the Z-axis slide rail is arranged at the bottom of the X-axis slide rail, the first motor is in transmission connection with the slide block through a first screw-nut pair, a second motor is arranged at the back of the Z-axis slide rail, and the second motor is in transmission connection with the oscillator through a second screw-nut pair. The first motor and the first screw-nut pair can drive the Z-axis slide rail to move back and forth along the X-axis slide rail, the welding machine head can be driven to move back and forth by the welding machine head arranged on the Z-axis slide rail, and the second motor and the second screw-nut pair can drive the welding machine head to move up and down. In addition, the first motor and the second motor can be arranged to be controlled in a programmed mode, so that the welding head can move according to a preset command in the welding process.

Further, the welding head with still be provided with the fine-tuning that is used for adjusting the welding head between the first installation riser, the fine-tuning is including setting up the horizontal fine setting subassembly on the first installation riser and sliding the vertical fine setting subassembly that sets up on horizontal fine setting subassembly, the welding head slide set up in vertical fine setting subassembly. After the position of the welding head is adjusted by the adjusting mechanism, a fine adjusting mechanism is arranged for further improving the accuracy of the welding head.

further, the transverse fine adjustment assembly comprises a transverse screw rod rotatably arranged on the first mounting vertical plate, the longitudinal fine adjustment assembly comprises a second mounting vertical plate and a longitudinal screw rod rotatably arranged on the second mounting vertical plate, a transverse sliding block in threaded connection with the transverse screw rod is arranged on one surface, facing the transverse screw rod, of the second mounting vertical plate, a longitudinal sliding block is arranged on the longitudinal screw rod in a sliding manner, and the welding machine head is connected with the longitudinal sliding block; fine adjustment hand wheels are arranged at the end parts of the longitudinal screw rod and the transverse screw rod, and the longitudinal screw rod or the transverse screw rod is rotated through the fine adjustment hand wheels to achieve fine adjustment of the welding machine head. The transverse screw and the longitudinal screw are arranged, so that the welding head can perform transverse fine adjustment and vertical fine adjustment in a vertical plane, and the fine adjustment hand wheel is convenient to rotate the longitudinal screw or the transverse screw.

Further, first installation riser with still be provided with Y axle slide rail between the oscillator, the back of Y axle slide rail is provided with the third motor and rotates the third screw-nut pair of being connected with the third motor, the vice screw-nut of third screw-nut pass through the tie-beam with first installation riser is connected, the tie-beam is kept away from screw-nut's one end with first installation riser rotates and is connected. The Y-axis slide rail can drive the welding machine head to horizontally and transversely move, and the space position of the welding machine head can be adjusted in three dimensions by combining the X-axis slide rail and the Z-axis slide rail.

Further, the top of first installation riser is provided with the light. The operator is assisted in correctly adjusting the position of the welding head.

further, the horizontal fine setting subassembly still include with horizontal screw rod parallel arrangement's horizontal guide bar, horizontal guide bar has two, two horizontal guide bar is located respectively the both sides of horizontal screw rod, horizontal sliding block with horizontal guide bar sliding fit, vertical fine setting subassembly still include with vertical screw rod parallel arrangement's vertical guide bar, vertical guide bar has two, two vertical guide bar is located respectively the both sides of vertical screw rod, vertical sliding block with vertical guide bar sliding fit. The transverse guide rod and the longitudinal guide rod can improve the stability of the welding head in the moving process, and the problem that the adjustment precision is influenced due to the fact that the pressure borne by the transverse screw or the longitudinal screw is too large is avoided.

Drawings

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

Fig. 2 is a schematic structural view of the inside of the trolley according to the embodiment of the present invention;

Fig. 3 is a schematic structural view of the embodiment of the present invention after the wire reel and the welding head are stored;

Fig. 4 is a rear view of an embodiment of the present invention;

Fig. 5 is a schematic view of the structure and installation of the welding head in the embodiment of the present invention;

fig. 6 is a schematic structural view of a Y-axis slide rail according to an embodiment of the present invention.

Reference numerals: the welding machine comprises a trolley 100, a pulley 110, a welding head 200, a wire calibration mechanism 210, a conductive tube 220, a melting nozzle 230, an X-axis slide rail 300, a first motor 310, a Z-axis slide rail 400, a slide block 410, a second motor 420, a swinging device 500, a Y-axis slide rail 600, a third motor 610, a third screw nut pair 620, a connecting beam 700, a first installation vertical plate 800, an illuminating lamp 810, a second installation vertical plate 900, a transverse screw 10a, a transverse guide rod 10b, a second fine-adjustment hand wheel 10c, a longitudinal screw 11a, a longitudinal guide rod 11b, a first fine-adjustment hand wheel 11c, a wire reel 12, a rotating support 12a, a wire feeding head 13, a wire inlet 13a and a wire outlet 13 b.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

it is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship as shown in the drawings for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention; fig. 2 is a schematic structural view of the inside of the trolley according to the embodiment of the present invention; fig. 3 is a schematic structural view of the embodiment of the present invention after the wire reel and the welding head are stored; fig. 4 is a rear view of an embodiment of the present invention; fig. 5 is a schematic view of the structure and installation of the welding head in the embodiment of the present invention; fig. 6 is a schematic structural view of a Y-axis slide rail according to an embodiment of the present invention; as shown in fig. 1 to 6, the embodiment provides a special welding machine for steel bars, which includes a trolley 100, a welding head 200, and a wire feeding mechanism, wherein a pulley 110 matched with a rail is arranged at the bottom of the trolley 100; when the welding head 200 is used, steel rails are laid along a working path, the trolley 100 is arranged on the steel rails in a sliding manner, the trolley 100 is pushed to move on the steel rails along with the change of a welding position, the welding head 200 is movably arranged on the trolley 100 through an adjusting mechanism, the welding head 200 comprises a wire calibrating mechanism 210, a conductive tube 220 and a melting nozzle 230 which are sequentially connected, the adjusting mechanism comprises an X-axis slide rail 300 arranged on the trolley 100 and a Z-axis slide rail 400 arranged on the X-axis slide rail 300 in a sliding manner, the Z-axis slide rail 400 is a standing rail, and the welding head 200 is connected with the Z-axis slide rail 400 in a sliding manner through a swinging device 500; wire feeder including being fixed in the wire reel 12 of keeping away from melting nozzle 230 one side on the platform truck 100 and set up in send a aircraft nose 13 on the oscillator 500, send a aircraft nose 13 can adopt south to lead the wire feeding unit who shakes and well kang welding machine electromechanical limited company and make, send a aircraft nose 13 and oscillator 500 synchronous motion for send the interval between an aircraft nose 13 and the welding aircraft nose unchangeable, avoid influencing the transportation of welding wire, wire reel 12 rotate through rotating support 12a set up in on the platform truck 100, send and be provided with into wire mouth 13a and wire outlet 13b on the aircraft nose 13, through send a wire 13 with the welding wire on the wire reel 12 deliver to welding head 200. The welding head 200 and the matched equipment thereof are integrally arranged by adopting the trolley 100, the welding head 200 can be moved by depending on the trolley 100 in the welding process, the manual carrying of the welding head 200 and the matched equipment by an operator is avoided, the welding operation is more convenient, and the welding head is particularly suitable for the end surface fusion of a steel bar or a steel plate with the diameter of 50mmX50 mm; in order to make the adaptability of the welding head 200 stronger and to be able to accurately weld different parts of the steel bar or the steel plate, the technical scheme further provides an adjusting mechanism comprising an X-axis slide rail 300 and a Z-axis slide rail 400, and the spatial position of the welding head 200 can be accurately adjusted in the welding process, so that the welding nozzle 230 of the welding head 200 can be aligned to the welding part of the steel bar or the steel plate at the optimal angle.

The trolley 100 includes a chassis and a protective cover provided on the chassis, through which a mechanism on the chassis is protected. The protective cover can protect the welding head 200 and its associated equipment from being covered by splashed sparks during welding. The protective shield also enables the welding head 200 to collide with other workpieces. The safety cover is including setting up the support chassis on the chassis, support chassis is rectangle frame structure, panel has been laid to support chassis's skin, encloses synthetic safety cover through support chassis panel all around.

Referring to fig. 2 and 3, the welding heads 200 are rotatably connected to the oscillator 500 through a first mounting riser, and the welding heads 200 have two welding heads 200, and the two welding heads 200 have the same structure and are arranged in parallel on the first mounting riser. Integrating two welding heads 200 into the trolley 100 can improve the speed and efficiency of welding. Every welding head 200 all corresponds and is provided with a wire feeder, two wire feeder's wire reel 12 set up respectively in the both sides of Z axle slide rail 400, when not using, can avoid wire reel 12 to stretch out outside the safety cover through rotating the both sides that support 12a accomodate Z axle slide rail 400 with wire reel 12.

Referring to fig. 2, the bottom of the Z-axis slide rail 400 is sleeved on the X-axis slide rail 300 through a slider 410, the bottom of the X-axis slide rail 300 is provided with a first motor 310 for driving the Z-axis slide rail 400, the first motor 310 is in transmission connection with the slider 410 through a first screw nut pair, the slider 410 is fixedly connected with a screw nut of the first screw nut pair, the back of the Z-axis slide rail 400 is provided with a second motor 420, the second motor 420 is in transmission connection with the oscillator 500 through a second screw nut pair, and the oscillator 500 is fixedly connected with a screw nut of the second screw nut pair. The first motor 310 and the first screw nut pair can drive the Z-axis slide rail 400 to move back and forth along the X-axis slide rail 300, the welding head 200 is arranged on the Z-axis slide rail 400, namely, the welding head 200 can be driven to move back and forth, and the second motor 420 and the second screw nut pair can drive the welding head 200 to move up and down.

referring to fig. 2, 5 and 6, a Y-axis slide rail 600 is further disposed between the first installation vertical plate and the oscillator 500, a third motor 610 and a third screw-nut pair 620 rotatably connected to the third motor 610 are disposed on the back of the Y-axis slide rail 600, a screw nut of the third screw-nut pair 620 is connected to the first installation vertical plate through a connection beam 700, one end of the connection beam 700 far from the screw nut is rotatably connected to the first installation vertical plate, the first installation vertical plate and the connection beam 700 rotate through a set rotating shaft, and in order to prevent the first installation vertical plate from deviating in the welding process, damping is disposed at the position of the rotating shaft to increase the friction force between the first installation vertical plate and the connection beam 700. The Y-axis slide rail 600 can drive the welding head 200 to horizontally move, and the space position of the welding head 200 can be adjusted in three dimensions by combining the X-axis slide rail 300 and the Z-axis slide rail 400. The connecting beam 700 is rotatably connected with the first mounting vertical plate, so that the first mounting vertical plate and the equipment (including the welding head 200) connected with the first mounting vertical plate can rotate around the connecting beam 700, and when the welding head is not required to be used, the first mounting vertical plate can be inwards rotated by 180 degrees and then stored in the protective cover, so that the protection of the welding head 200 is enhanced; meanwhile, the arranged foldable mechanism can be convenient for packaging and transporting the whole machine.

In addition, the first motor 310, the second motor 420, and the third motor 610 may be provided to be programmed so that the welding head 200 can move according to a predetermined command during welding. Specifically include and set up the control mainboard in platform truck 100, the control mainboard with first motor 310, second motor 420 and third motor 610 electricity are connected, send through the control mainboard to first motor 310, second motor 420 and third motor 610 and open and stop, the rotational speed and turn to the instruction, the safety cover outside of platform truck 100 still be provided with the control panel that the control mainboard electricity is connected, through control panel can first motor 310 of manual control, second motor 420 and third motor 610, control X axle slide rail 300, Y axle slide rail 600 and Z axle slide rail 400 promptly.

Referring to fig. 5, a fine adjustment mechanism for adjusting the welding head 200 is further disposed between the welding head 200 and the first mounting vertical plate 800, the fine adjustment mechanism includes a horizontal fine adjustment component disposed on the first mounting vertical plate 800 and a longitudinal fine adjustment component slidably disposed on the horizontal fine adjustment component, and the welding head 200 is slidably disposed on the longitudinal fine adjustment component. After the position of the welding head 200 is adjusted by the adjustment mechanism, a fine adjustment mechanism is provided in order to further improve the accuracy of the welding head 200.

Referring to fig. 5, the transverse fine-adjustment assembly includes a transverse screw 10a rotatably disposed on the first mounting vertical plate, the longitudinal fine-adjustment assembly includes a second mounting vertical plate 900 and a longitudinal screw 11a rotatably disposed on the second mounting vertical plate 900, a transverse sliding block screwed with the transverse screw 10a is disposed on a surface of the second mounting vertical plate 900 facing the transverse screw 10a, a longitudinal sliding block is slidably disposed on the longitudinal screw 11a, and the welding head 200 is connected to the longitudinal sliding block; a first fine-tuning hand wheel 11c is arranged at the end part of the longitudinal screw rod 11a, a second fine-tuning hand wheel 10c is arranged at the end part of the transverse screw rod 10a, and the longitudinal screw rod 11a or the transverse screw rod 10a is rotated by the fine-tuning hand wheel to realize fine tuning of the welding head 200. The transverse screw rod 10a and the longitudinal screw rod 11a are arranged, so that the welding head 200 can perform transverse fine adjustment and vertical fine adjustment in a vertical plane, and the fine adjustment hand wheel is arranged to facilitate the rotation of the longitudinal screw rod 11a or the transverse screw rod 10 a. Screw holes are formed in the longitudinal sliding block and the transverse sliding block, so that the longitudinal sliding block can move up and down along with the rotation of the longitudinal screw rod 11a, and the transverse sliding block can move left and right along with the rotation of the transverse screw rod 10 a.

School silk mechanism 210 includes school silk riser and the send silk pipe and a plurality of take-up pulleys that from top to bottom set up on school silk riser, the outside of take-up pulley is provided with the wire casing, the welding wire passes through the wire casing is around locating the take-up pulley, a plurality of take-up pulleys are crisscross to be set up, and when the wire winding, tighten the welding wire through the take-up pulley, the nozzle with school silk riser's lower extreme fixed connection. The wire feeding pipe can straighten the welding wire fed out by the wire feeding machine head 13, and the arranged tension wheel can prevent the welding wire from loosening and knotting in the process of feeding to the welding machine head 200.

The top of first installation riser is provided with light 810. Assisting the operator in properly adjusting the position of the welding head 200.

Referring to fig. 5, the transverse fine adjustment assembly further includes two transverse guide rods 10b arranged in parallel with the transverse screw 10a, the two transverse guide rods 10b are respectively arranged on two sides of the transverse screw 10a, the transverse sliding block is in sliding fit with the transverse guide rods 10b, the longitudinal fine adjustment assembly further includes two longitudinal guide rods 11b arranged in parallel with the longitudinal screw 11a, the two longitudinal guide rods 11b are respectively arranged on two sides of the longitudinal screw 11a, and the longitudinal sliding block is in sliding fit with the longitudinal guide rods 11 b. The transverse guide rod 10b and the longitudinal guide rod 11b can improve the stability of the welding head 200 in the moving process, and avoid the influence on the adjusting precision caused by the overlarge pressure born by the transverse screw rod 10a or the longitudinal screw rod 11 a.

finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (7)

1. The utility model provides a special heat sealing machine of rod iron which characterized in that includes:

The trolley (100), the bottom of the trolley (100) is provided with a pulley (110) matched with the rail;

The welding head (200) is movably arranged on the trolley (100) through an adjusting mechanism, the welding head (200) comprises a wire correcting mechanism (210), a conductive tube (220) and a melting nozzle (230) which are sequentially connected, the adjusting mechanism comprises an X-axis slide rail (300) arranged on the trolley (100) and a Z-axis slide rail (400) arranged on the X-axis slide rail (300) in a sliding manner, and the welding head (200) is connected with the Z-axis slide rail (400) in a sliding manner through a swinging device (500);

The wire feeding mechanism comprises a wire reel (12) fixed on one side, far away from the melting nozzle (230), of the trolley (100) and a wire feeding machine head (13) arranged on the oscillator (500), the wire reel (12) is rotatably arranged on the trolley (100) through a rotating support (12a), a wire inlet (13a) and a wire outlet (13b) are formed in the wire feeding machine head (13), and welding wires on the wire reel (12) are fed to the welding machine head (200) through the wire feeding machine head (13);

the welding heads (200) are two, the two welding heads (200) are identical in structure, and the welding heads (200) are rotatably connected with the oscillator (500) through first installation vertical plates;

The wire correcting mechanism (210) comprises a wire correcting vertical plate, a wire feeding pipe and a plurality of tension wheels, wherein the wire feeding pipe and the tension wheels are arranged on the wire correcting vertical plate from top to bottom, a wire groove is formed in the outer side of each tension wheel, the welding wire is wound on the tension wheels through the wire groove, the tension wheels are arranged in a staggered mode, and the melting nozzle is fixedly connected with the lower end of the wire correcting vertical plate.

2. The special welding machine for the steel bars according to claim 1, wherein the trolley (100) comprises a chassis and a protective cover arranged on the chassis, and mechanisms on the chassis are protected by the protective cover.

3. the special welding machine for the steel bars according to claim 1, wherein the bottom of the Z-axis slide rail (400) is sleeved on the X-axis slide rail (300) through a slide block (410), a first motor (310) for driving the Z-axis slide rail (400) is arranged at the bottom of the X-axis slide rail (300), the first motor (310) is in transmission connection with the slide block (410) through a first screw nut pair, a second motor (420) is arranged at the back of the Z-axis slide rail (400), and the second motor (420) is in transmission connection with the oscillator (500) through a second screw nut pair.

4. The special welding machine of claim 1, wherein a fine adjustment mechanism for adjusting the welding head (200) is further disposed between the welding head (200) and the first installation riser (800), the fine adjustment mechanism comprises a transverse fine adjustment component disposed on the first installation riser (800) and a longitudinal fine adjustment component slidably disposed on the transverse fine adjustment component, and the welding head (200) is slidably disposed on the longitudinal fine adjustment component.

5. The special welding machine for the steel bars according to claim 4, characterized in that the transverse fine-adjustment assembly comprises a transverse screw (10a) rotatably arranged on the first installation vertical plate, the longitudinal fine-adjustment assembly comprises a second installation vertical plate (900) and a longitudinal screw (11a) rotatably arranged on the second installation vertical plate (900), a transverse sliding block in threaded connection with the transverse screw (10a) is arranged on one surface of the second installation vertical plate (900) facing the transverse screw (10a), a longitudinal sliding block is slidably arranged on the longitudinal screw (11a), and the welding machine head (200) is connected with the longitudinal sliding block;

Fine adjustment hand wheels are arranged at the end parts of the longitudinal screw rod (11a) and the transverse screw rod (10a), and the longitudinal screw rod (11a) or the transverse screw rod (10a) is rotated through the fine adjustment hand wheels to achieve fine adjustment of the welding head (200).

6. The special welding machine for the steel bars according to claim 1, wherein a Y-axis slide rail (600) is further arranged between the first installation riser and the oscillator (500), a third motor (610) and a third screw-nut pair (620) rotatably connected with the third motor (610) are arranged on the back of the Y-axis slide rail (600), a screw nut of the third screw-nut pair (620) is connected with the first installation riser through a connecting beam (700), and one end of the connecting beam (700), which is far away from the screw nut, is rotatably connected with the first installation riser.

7. the special welding machine for the steel bars according to claim 5, characterized in that the transverse fine adjustment assembly further comprises two transverse guide rods (10b) arranged in parallel with the transverse screw (10a), the two transverse guide rods (10b) are arranged on two sides of the transverse screw (10a), the two transverse sliding blocks are in sliding fit with the transverse guide rods (10b), the longitudinal fine adjustment assembly further comprises two longitudinal guide rods (11b) arranged in parallel with the longitudinal screw (11a), the two longitudinal guide rods (11b) are arranged on two sides of the longitudinal screw (11a), and the two longitudinal sliding blocks are in sliding fit with the longitudinal guide rods (11 b).