CN114346543A

CN114346543A - Reciprocating welding head of automatic electric welding machine

Info

Publication number: CN114346543A
Application number: CN202210128048.5A
Authority: CN
Inventors: 黄栋杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2022-04-15

Abstract

A reciprocating automatic electric welding machine welding head is disclosed, which comprises a base, wherein the upper end surface of the base is fixedly connected with a hydraulic pump, a lifting cylinder, a clamping baffle, a clamping fixing plate, a clamping cylinder and a screwing seat, the upper end surface of the base is slidably connected with a clamping push plate, the right end surface of the clamping baffle is fixedly connected with the clamping fixing plate, a lifting main shaft is slidably connected in a lifting oil cavity, the upper end surface of the lifting main shaft is fixedly connected with a positioning workbench, the upper end surface of the positioning workbench is fixedly connected with four symmetrical positioning screw seats, the upper end of the positioning workbench is provided with a positioning mechanism, and the right side of the positioning mechanism is provided with a reciprocating welding mechanism and a welding rod splicing mechanism. The welding quality of the automatic electric welding machine and the reliability of welding work are integrally optimized and improved.

Description

Reciprocating welding head of automatic electric welding machine

Technical Field

The application relates to the field of electric welding machines, in particular to a reciprocating welding head of an automatic electric welding machine.

Background

The basic working principle of electric welding machine is that through the commonly used industrial electricity, the voltage is reduced by the pressure reducer in the electric welding machine, the current is enhanced, and the electric energy generates huge electric arc heat to melt the welding rod and steel, while the fusion between the steel and the steel is higher due to the melting of the welding rod, the electric welding machine is the most widely used welding method at present, and the electric welding method comprises the following steps: the development of automatic electric welding machines is inevitable, welding heads in the existing various electric welding machines usually have a speed regulating function and an automatic replacing function, but when the welding heads do not have other auxiliary functions, the welding heads often cannot be tightly welded, and even the welding joints cannot be completely welded when the gaps of parts to be welded are large.

Disclosure of Invention

In order to solve the problems, the invention is realized by the following technical scheme:

a reciprocating type welding head of an automatic electric welding machine comprises a base, wherein the upper end face of the base is fixedly connected with a hydraulic pump, a lifting cylinder, a clamping baffle, a clamping fixing plate, a clamping cylinder and a screwing seat, the upper end face of the base is slidably connected with a clamping push plate, a conduction cavity is arranged in the upper end of the base, the conduction cavity is slidably connected with a conduction switch, the lower end wall of the conduction cavity is fixedly connected with the other end of a conduction spring of the conduction switch, the upper end of the screwing seat is rotatably connected with a screwing body, the right end face of the clamping baffle is fixedly connected with the clamping fixing plate, the right end face of the hydraulic pump is fixedly connected with a lifting positioning pipeline, a lifting oil cavity is arranged in the lifting cylinder, a lifting main shaft is slidably connected in the lifting oil cavity, a lifting oil port is arranged in the left end wall of the lifting oil cavity, and is communicated with the lifting positioning pipeline, the lifting main shaft upper end face fixedly connected with positioning table, four location lead screw seats of positioning table upper end face fixedly connected with symmetry, the positioning table upper end is equipped with positioning mechanism, the positioning mechanism right side is equipped with reciprocal welding mechanism and the continuous mechanism that connects of welding rod.

Preferably, the positioning mechanism comprises the positioning workbench and the positioning screw seats, the upper end surface of the positioning workbench is fixedly connected with a positioning motor, the left pair of the positioning screw seats is rotatably connected with a positioning main screw, the right pair of the positioning screw seats is fixedly connected with a positioning guide shaft, the positioning main screw and the positioning guide shaft are slidably connected with a positioning sliding table, the upper end surface of the positioning sliding table is fixedly connected with a telescopic cylinder seat, the front end surface of the positioning motor is dynamically connected with the positioning main screw, the upper end surface of the positioning sliding table is fixedly connected with a positioning air pump, the right end surface of the positioning air pump is dynamically connected with a positioning telescopic cylinder, the right end surface of the positioning telescopic cylinder is fixedly connected with a positioning plate, the upper end surface of the positioning plate is fixedly connected with a reciprocating motor, the upper end surface of the positioning plate is slidably connected with a reciprocating workbench, and a reciprocating through groove is arranged in the positioning plate, the utility model discloses a reciprocating mechanism, including reciprocating motor, the preceding terminal surface power of reciprocating motor is connected with reciprocating main shaft, the preceding terminal surface fixedly connected with of reciprocating main shaft reciprocates the wheel, the first connecting pin of terminal surface fixedly connected with before the reciprocating wheel, first connecting pin rotates to be connected with the other end and rotates and is connected with the connecting rod of terminal surface before the reciprocating work platform, the preceding terminal surface fixedly connected with other end of reciprocating work platform with the connecting rod rotates the reciprocating connecting rod of connecting, reciprocating work platform up end fixedly connected with lights motor and other end fixedly connected with strikes the answer spring that strikes reciprocating block upper end, light motor right-hand member face power is connected with and lights the main shaft, light main shaft right-hand member fixedly connected with and light the cam, it is equipped with under the cam to light the impact reciprocating block, it runs through to strike reciprocating block reciprocal logical groove.

Preferably, the reciprocating welding mechanism comprises a feeding main board fixedly connected with the lower end face of the impact reciprocating block, a feeding motor and two feeding seats symmetrically distributed in the vertical direction are fixedly connected with the front end face of the feeding main board, a feeding main shaft is rotatably connected between the two feeding seats, the upper end of the feeding seat positioned on the lower side is provided with a same conduction switch, a feeding guide shaft is fixedly connected between the two feeding seats, the lower end face of the feeding motor is in power connection with the feeding main shaft, the feeding main shaft and the feeding guide shaft are rotatably connected with a feeding sliding table, the upper end face of the feeding sliding table is fixedly connected with a splicing air pump and a splicing shaft seat positioned on the right side of the splicing air pump, the right end face of the splicing air pump is in power connection with a splicing main shaft, the splicing main shaft is rotatably connected with the splicing main shaft, and the right end face of the splicing main shaft is fixedly connected with a splicing block, the welding rod splicing device is characterized in that an elastic cylinder is fixedly connected to the upper end face of the splicing block, a connecting pin shaft is fixedly connected to the right end of the splicing block, an elastic cavity is arranged in the elastic cylinder, an elastic main shaft is slidably connected into the elastic cavity, an elastic push rod is fixedly connected to the right end face of the elastic main shaft, an elastic connecting shaft of a rotating pin is rotatably connected to the upper end of the elastic push rod, an elastic main claw is fixedly connected to the lower end of the rotating pin and is rotatably connected with the connecting pin shaft, an elastic fixing claw is fixedly connected to the right end face of the splicing block, and a welding rod is arranged in front of the elastic fixing claw.

Preferably, the welding rod splicing mechanism comprises a welding rod box fixedly connected with the lower end face of the positioning plate, the welding rod box is positioned on the right side of the reciprocating welding mechanism, a replacing motor is fixedly connected with the left end face of the welding rod box, a replacing main shaft is dynamically connected with the upper end face of the replacing motor, a collecting bin is fixedly connected with the lower end face of the welding rod box, welding residues can be collected by the collecting bin, a preparation cavity is arranged in the welding rod box, a preparation spring of a preparation push plate is fixedly connected with the rear end wall of the preparation cavity, the front end of the preparation push plate is provided with a group of welding rods, an auxiliary plate is fixedly connected with the right end wall of the preparation cavity, a preparation motor and a guide frame are fixedly connected with the left end face of the welding rod box, a preparation main shaft is dynamically connected with the front end face of the preparation motor, a preparation shift shaft is slidably connected with the left and right directions of the welding rod box, and the preparation shift shaft penetrates through the left end wall of the preparation cavity, the guide frame is connected with the preparation shifting shaft in a sliding mode, and the preparation main shaft and the preparation shifting shaft are in meshed transmission.

The invention provides a reciprocating welding head of an automatic electric welding machine, which has the following beneficial effects:

the automatic welding machine is provided with the lifting cylinder, the positioning sliding table and the positioning plate, the height can be adjusted according to different thicknesses of a welding part so as to adapt to various scenes, the reciprocating wheel, the connecting rod and the reciprocating through groove are arranged, the welding rod can move in a reciprocating mode along a normal direction while moving along a gap, the welding quality of the automatic welding machine is improved, welding rods can be automatically supplied by arranging the welding rod box, the loosening and tightening main claw, the preparation push plate and the preparation shifting shaft, the continuous material processing of any position of a breakpoint is realized, and the welding quality and the reliability of the welding work of the automatic welding machine are integrally optimized and improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a welding head of the reciprocating automatic electric welding machine of the present invention;

FIG. 2 is a schematic top view of the present invention shown in FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1 of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 of the present invention;

FIG. 6 is a schematic cross-sectional view A-A of FIG. 1 of the present invention;

FIG. 7 is a schematic cross-sectional view of B-B of FIG. 6 in accordance with the present invention.

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 embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1-7, the invention provides a reciprocating welding head of an automatic electric welding machine, which comprises a base 15, wherein the upper end surface of the base 15 is fixedly connected with a hydraulic pump 16, a lifting cylinder 18, a clamping baffle 59, a clamping fixing plate 56, a clamping cylinder 57 and a screwing seat 51, the upper end surface of the base 15 is slidably connected with a clamping push plate 58, the upper end of the base 15 is internally provided with a conducting cavity 54, the conducting cavity 54 is slidably connected with a conducting switch 53, the lower end wall of the conducting cavity 54 is fixedly connected with a conducting spring 52 of which the other end is fixedly connected with the conducting switch 53, the upper end of the screwing seat 51 is rotatably connected with a screwing body 50, the right end surface of the clamping baffle 59 is fixedly connected with the clamping fixing plate 56, the right end surface of the hydraulic pump 16 is fixedly connected with a lifting positioning pipeline 17, the lifting cylinder 18 is internally provided with a lifting oil cavity 20, and the lifting main shaft 21 is slidably connected with the lifting oil cavity 20, be equipped with lifting hydraulic fluid port 19 in the 20 left end walls in lifting oil pocket, lifting hydraulic fluid port 19 with lifting positioning pipeline 17 switch-on, lifting main shaft 21 up end fixedly connected with positioning table 22, four location lead screw seats 23 of positioning table 22 up end fixedly connected with symmetry, positioning table 22 upper end is equipped with positioning mechanism 11, positioning mechanism 11 right side is equipped with reciprocal welding mechanism 12 and the welding rod and continues to connect mechanism 13, positioning mechanism 11 can the clamping welding piece, adjust weld height and can pull reciprocal line welding of walking, reciprocal welding mechanism 12 can automatic speed regulation feed welding, the welding rod is continued to connect mechanism 13 and can the automatic change welding rod.

Wherein, the positioning mechanism 11 comprises the positioning workbench 22 and the positioning screw seat 23, the upper end surface of the positioning workbench 22 is fixedly connected with a positioning motor 27, the left side is a pair of the positioning screw seat 23 is rotatably connected with a positioning main screw 24, the right side is a pair of the positioning guide shaft 26 fixedly connected between the positioning screw seats 23, the positioning main screw 24 and the positioning guide shaft 26 are slidably connected with a positioning sliding table 25, the upper end surface of the positioning sliding table 25 is fixedly connected with a telescopic cylinder seat 30, the front end surface of the positioning motor 27 is dynamically connected with the positioning main screw 24, the upper end surface of the positioning sliding table 25 is fixedly connected with a positioning air pump 28, the right end surface of the positioning air pump 28 is dynamically connected with a positioning telescopic cylinder 29, the right end surface of the positioning telescopic cylinder 29 is fixedly connected with a positioning plate 39, the upper end surface of the positioning plate 39 is fixedly connected with a reciprocating motor 62, the upper end face of the positioning plate 39 is connected with a reciprocating workbench 38 in a sliding manner, a reciprocating through groove 63 is arranged in the positioning plate 39, the front end face of a reciprocating motor 62 is connected with a reciprocating main shaft 61 in a power manner, the front end face of the reciprocating main shaft 61 is fixedly connected with a reciprocating wheel 31, the front end face of the reciprocating wheel 31 is fixedly connected with a first connecting pin 32, the first connecting pin 32 is rotatably connected with a connecting rod 33 of which the other end is rotatably connected with the front end face of the reciprocating workbench 38, the front end face of the reciprocating workbench 38 is fixedly connected with a reciprocating connecting rod 67 of which the other end is rotatably connected with the connecting rod 33, the upper end face of the reciprocating workbench 38 is fixedly connected with an ignition motor 34 and a return spring 37 of which the other end is fixedly connected with the upper end of an impact reciprocating block 41, the right end face of the ignition motor 34 is connected with an ignition main shaft 35 in a power manner, and the right end of the ignition main shaft 35 is fixedly connected with an ignition cam 36, the impact reciprocating block 41 is arranged right below the ignition cam 36, and the impact reciprocating block 41 penetrates through the reciprocating through groove 63 and can slide left and right in the reciprocating through groove 63.

Wherein, reciprocal welding mechanism 12 includes the feeding mainboard 45 of terminal surface fixed connection under impact reciprocating block 41, terminal surface fixedly connected with feed motor 42 and two upper and lower direction symmetric distributions feed the seat 43 before feeding mainboard 45, two it is connected with to feed main shaft 46 to feed to rotate between the seat 43, be located the downside feed seat 43 upper end and be equipped with one equally switch 53, two fixedly connected with between the seat 43 feeds guide shaft 47, feed motor 42 lower terminal surface power is connected with feed main shaft 46, feed main shaft 46 with feed the last rotation of guide shaft 47 and be connected with and feed slip table 44, feed slip table 44 upper end fixedly connected with continue to connect air pump 68 and be located continue to connect the continuation axle bed 69 on air pump 68 right side, continue to connect 68 right terminal surface power and be connected with and continue to connect main shaft 70, continue to connect the rotation of air pump 69 and be connected with continue to connect main shaft 70, the continuous joint main shaft 70 is fixedly connected with a continuous joint block 71 on the right end face, an elastic cylinder 73 is fixedly connected with the upper end face of the continuous joint block 71, a connecting pin shaft 80 is fixedly connected with the right end of the continuous joint block 71, an elastic cavity 72 is arranged in the elastic cylinder 73, an elastic main shaft 74 is slidably connected in the elastic cavity 72, an elastic push rod 75 is fixedly connected with the right end face of the elastic main shaft 74, an elastic connecting shaft 76 with a rotating pin 77 rotatably connected to the upper end of the elastic push rod 75 is rotatably connected with the other end of the elastic connecting shaft, an elastic main claw 78 is fixedly connected to the lower end of the rotating pin 77, the elastic main claw 78 is rotatably connected with the connecting pin shaft 80, an elastic fixing claw 79 is fixedly connected with the right end face of the continuous joint block 71, a welding rod 48 is arranged in front of the elastic fixing claw 79, and the elastic main claw 78 can be matched with the elastic fixing claw 79 to clamp the welding rod 48.

Wherein, the welding rod splicing mechanism 13 comprises a welding rod box 40 fixedly connected with the lower end face of the positioning plate 39, the welding rod box 40 is positioned on the right side of the reciprocating welding mechanism 12, the left end face of the welding rod box 40 is fixedly connected with a replacing motor 65, the upper end face of the replacing motor 65 is power connected with a replacing main shaft 64, the lower end face of the welding rod box 40 is fixedly connected with a collecting bin 49, the collecting bin 49 can collect welding residues, a preparation chamber 81 is arranged in the welding rod box 40, the rear end wall of the preparation chamber 81 is fixedly connected with a preparation spring 82 of which the other end is fixedly connected with a preparation push plate 83, the front end of the preparation push plate 83 is provided with a group of welding rods 48, the right end wall of the preparation chamber 81 is fixedly connected with an auxiliary plate 84, the left end face of the welding rod box 40 is fixedly connected with a preparation motor 85 and a guide frame 88, the front end face of the preparation motor 85 is power connected with a preparation main shaft 86, a preparation shifting shaft 87 is slidably connected to the welding rod box 40 in the left-right direction, the preparation shifting shaft 87 penetrates through the left end wall of the preparation cavity 81, the preparation shifting shaft 87 is slidably connected to the guide frame 88, and the preparation main shaft 86 and the preparation shifting shaft 87 are in meshed transmission.

The invention relates to a reciprocating welding head of an automatic electric welding machine, which comprises the following working procedures:

in the initial state, the hydraulic pump 16, the positioning motor 27, the positioning air pump 28, the ignition motor 34, the feeding motor 42, the reciprocating motor 62, the continuous air pump 68 and the preparation motor 85 are not started, the two conduction switches 53 are not electrified, the clamping push plate 58, the positioning telescopic cylinder 29 and the lifting spindle 21 are positioned at the lowest extension distance, the preparation poking shaft 87 is in contact with the right end wall of the preparation cavity 81 and is prepared with a welding rod 48, the preparation spring 82, the conduction spring 52 and the return spring 37 are all in the extension state, the positioning sliding table 25 is positioned at the lowest conduction distance of the front end, the reciprocating workbench 38 is positioned in the middle of the reciprocating through groove 63, the feeding sliding table 44 is positioned at the lowest conduction distance of the upper side, the screwing body 50 is positioned at the lowest pressing distance of the upper side, the clamping push plate 58 and the loosening and tightening spindle 74 are positioned at the lowest extension distance, and the continuous connecting block 71 is loaded and clamped with a welding rod 48 and is positioned at the lowest extension distance of the right side of the continuous shaft seat 69.

When the preparation action before welding is started, the hydraulic pump 16 is started, the lifting main shaft 21 is lifted to a corresponding height according to the different thicknesses of the welding parts, the lifting positioning pipeline 17 is opened, hydraulic oil enters the lifting oil cavity 20 from the lifting oil port 19 through the lifting positioning pipeline 17, the lifting main shaft 21 is lifted, the lifting main shaft 21 and the positioning plate 39 are driven to move upwards to a proper height, the hydraulic oil enters the clamping cavity 66 from the clamping oil port 55, the clamping push plate 58 is pushed to press one end of the welding part forwards, the hydraulic oil with excessive pressure in the clamping cavity 66 flows back to the oil tank through the clamping oil pipe 60 to keep clamping, the screwing body 50 is rotated to press the other end of the welding part, the conducting switch 53 is pressed downwards under the action of the welding part, the conducting spring 52 is compressed, the conducting switch 53 is always attached to the lower surface of the welding part, and then the conducting switch 53 is electrified, so that the welding piece is in an arc conducting state, and then the positioning air pump 28 is started to drive the positioning telescopic cylinder 29 to extend to the front end position of the welding gap and then stop.

When welding is started, the ignition motor 34 is started to drive the ignition main shaft 35 to drive the ignition cam 36 to rotate for one circle, so that the impact reciprocating block 41 is pressed downwards for one time, the feeding main plate 45, the feeding seat 43 and the loaded welding rod 48 are driven to impact downwards for one time, so that one-time welding ignition is completed, the feeding main plate 45 and the ignited welding rod 48 return to the adjusting position on the welding surface under the action of the return spring 37, then the positioning motor 27, the reciprocating motor 62 and the feeding motor 42 are simultaneously started, the positioning motor 27 is driven, the reciprocating motor 62 drives the reciprocating main shaft 61 to drive the reciprocating wheel 31 to rotate, so that the connecting rod 33 is driven to swing, so that the reciprocating workbench 38 is driven to rotate left and right, so that the positioning sliding table 25 is driven to move on the positioning main screw rod 24 and the positioning guide shaft 26, so that the positioning air pump 28 is driven to move along the gap track of the workpiece in the front-back direction and move back in a reciprocating manner, thereby drive and feed mainboard 45 and the welding rod 48 who ignites and reciprocate about, simultaneously feed motor 42 drive and feed main shaft 46 and rotate, thereby drive and feed slip table 44 and down move on feeding main shaft 46 and feed guiding axle 47, thereby drive continuation block 71 and the welding rod 48 who ignites and move down and feed the welding, the welding rod 48 who ignites also reciprocates about when treating welding piece gap on the movement of gap orbit, thereby make the welding orbit accord with to treat welding piece gap and keep suitable left and right reciprocating velocity, thereby promote the welding quality of welding seam.

When the completely used welding rod is replaced, the ignited welding rod 48 is driven by the feeding motor 42 to feed downwards at a constant speed, when the lower end surface of the downwards moving feeding sliding table 44 is pressed and triggered to the conducting switch 53 on the lower side feeding seat 43, the feeding motor 42 is started to drive the feeding main shaft 46 in a reverse direction, at the moment, the positioning motor 27 is stopped and the position of the front and back direction of the feeding main plate 45 is kept, then the feeding sliding table 44 is driven by the impact reciprocating block 41 to move upwards to the position of the lower end surface of the feeding seat 43, then the feeding motor 42 and the reciprocating motor 62 are stopped, then the continuous air pump 68 is started to drive the continuous main shaft 70 to extend rightwards, so that the continuous block 71 and the welding rod 48 residue completely combusted are driven to move rightwards and stopped when the left end surface is moved rightwards to 0, then corresponding pipelines of the hydraulic pump 16 are opened to enable hydraulic oil to enter the loosening cavity 72, so that the loosening main shaft 74 is driven to move rightwards, so that the loosening push rod 75 is driven to move rightwards, then the elastic push rod 75 pushes the elastic connecting shaft 76 to release the elastic main claw 78 which grips the residues of the welding rod 48 through the rotating pin 77, then the residues of the welding rod 48 which are completely combusted fall into the collecting bin 49, then the continuous air pump 68 is started again to make the continuous block 71 stop moving to the right end wall of the preparation chamber 81, then the corresponding pipeline of the hydraulic pump 16 is opened again to make the hydraulic oil in the elastic chamber 72 flow back to the oil tank to drive the elastic main shaft 74 to move to the left, thereby driving the elastic main claw 78 to fold towards the elastic fixed claw 79 to grip and clamp the prepared welding rod 48 in the preparation chamber 81, then the continuous air pump 68 is started to drive the clamped welding rod 48 to move to the left, the ignition motor 34 is started again to drive the ignition cam 36 to rotate after the continuous block 71 returns to the initial position, thereby driving the replaced welding rod 48 to ignite, then the reciprocating motor 62 and the positioning motor 27 are started again to continue to reciprocate, the welding action is continued from the breakpoint until all the parts are restored to the initial state after the welding track is finished, then the preparation motor 85 is started to drive the preparation main shaft 86 to rotate, so that the preparation shifting shaft 87 moves a distance leftwards, so that the new welding rod 48 in the preparation cavity 81 is driven to move rightwards under the action of the preparation spring 82 to the front end wall of the preparation cavity 81 to contact the auxiliary plate 84, then the preparation motor 85 is started again to enable the preparation shifting shaft 87 to restore the initial state to separate the prepared welding rod 48, so that a new welding rod 48 is prepared for the next welding operation, and then the welding operation is finished.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A reciprocating welding head of an automatic electric welding machine, comprising a base (15), characterized in that: the lifting device is characterized in that the upper end face of the base (15) is fixedly connected with a hydraulic pump (16), a lifting cylinder (18), a clamping baffle (59), a clamping fixing plate (56), a clamping cylinder (57) and a screwing seat (51), the upper end face of the base (15) is slidably connected with a clamping push plate (58), a conducting cavity (54) is arranged in the upper end of the base (15), a conducting switch (53) is slidably connected in the conducting cavity (54), the other end of the lower end wall of the conducting cavity (54) is fixedly connected with a conducting spring (52) of the conducting switch (53), the upper end of the screwing seat (51) is rotatably connected with a screwing body (50), the right end face of the clamping baffle (59) is fixedly connected with the clamping fixing plate (56), the right end face of the hydraulic pump (16) is fixedly connected with a lifting positioning pipeline (17), and a lifting oil cavity (20) is arranged in the lifting cylinder (18), sliding connection has lifting main shaft (21) in lifting oil pocket (20), be equipped with lifting hydraulic fluid port (19) in lifting oil pocket (20) left end wall, lifting hydraulic fluid port (19) with lifting positioning tube way (17) switch-on, lifting main shaft (21) up end fixedly connected with positioning table (22), four location lead screw seats (23) of positioning table (22) up end fixedly connected with symmetry, positioning table (22) upper end is equipped with positioning mechanism (11), positioning mechanism (11) right side is equipped with reciprocal welding mechanism (12) and the continuous mechanism (13) that connects of welding rod.

2. A welding head for a reciprocating automatic welding machine as claimed in claim 1, wherein: the positioning mechanism (11) comprises a positioning workbench (22) and a positioning screw rod seat (23), the upper end surface of the positioning workbench (22) is fixedly connected with a positioning motor (27), the left pair of positioning screw rod seats (23) is rotatably connected with a positioning main screw rod (24), a positioning guide shaft (26) is fixedly connected between the right pair of positioning screw rod seats (23), the positioning main screw rod (24) and the positioning guide shaft (26) are connected with a positioning sliding table (25) in a sliding way, the upper end surface of the positioning sliding table (25) is fixedly connected with a telescopic cylinder seat (30), the front end surface of the positioning motor (27) is dynamically connected with the positioning main screw rod (24), the upper end surface of the positioning sliding table (25) is fixedly connected with a positioning air pump (28), the right end face of the positioning air pump (28) is dynamically connected with a positioning telescopic cylinder (29), the right end face of the positioning telescopic cylinder (29) is fixedly connected with a positioning plate (39).

3. A welding head for a reciprocating automatic welding machine as claimed in claim 2, wherein: the upper end face of the positioning plate (39) is fixedly connected with a reciprocating motor (62), the upper end face of the positioning plate (39) is connected with a reciprocating workbench (38) in a sliding manner, a reciprocating through groove (63) is formed in the positioning plate (39), the front end face of the reciprocating motor (62) is connected with a reciprocating main shaft (61) in a power connection manner, the front end face of the reciprocating main shaft (61) is fixedly connected with a reciprocating wheel (31), the front end face of the reciprocating wheel (31) is fixedly connected with a first connecting pin (32), the first connecting pin (32) is rotatably connected with a connecting rod (33) of which the other end is rotatably connected with the front end face of the reciprocating workbench (38), the front end face of the reciprocating workbench (38) is fixedly connected with a reciprocating connecting rod (67) of which the other end is rotatably connected with the connecting rod (33), the upper end face of the reciprocating workbench (38) is fixedly connected with a lighting motor (34) and the other end fixedly connected with a return spring (37) for impacting the upper end of the reciprocating block (41), the right end face of the ignition motor (34) is in power connection with an ignition main shaft (35), the right end of the ignition main shaft (35) is fixedly connected with an ignition cam (36), the impact reciprocating block (41) is arranged right below the ignition cam (36), and the impact reciprocating block (41) penetrates through the reciprocating through groove (63).

4. A welding head for a reciprocating automatic welding machine as claimed in claim 3, wherein: reciprocal welding mechanism (12) include strike reciprocal piece (41) lower terminal surface fixed connection feed mainboard (45), feed mainboard (45) preceding terminal surface fixedly connected with feed motor (42) and two about the direction symmetric distribution feed seat (43), two it is connected with to feed main shaft (46) to rotate between seat (43), is located the downside feed seat (43) upper end and be equipped with one equally switch (53), two fixedly connected with feeds guiding axle (47) between seat (43).

5. A welding head of a reciprocating automatic welding machine as claimed in claim 4, wherein: feed motor (42) lower terminal surface power and be connected with feed main shaft (46), feed main shaft (46) with it is connected with and feeds slip table (44) to rotate on feeding guiding axle (47), it continuously connects air pump (68) and is located to feed slip table (44) up end fixedly connected with continuously connect air pump (68) continuous splicing axle bed (69) on right side, continuously connect air pump (68) right terminal surface power and be connected with continuously connect main shaft (70), continuously connect axle bed (69) internal rotation and be connected with continuously connect main shaft (70).

6. A welding head of a reciprocating automatic welding machine as claimed in claim 5, wherein: a splicing block (71) is fixedly connected on the right end face of the splicing main shaft (70), an elastic cylinder (73) is fixedly connected on the upper end face of the splicing block (71), the right end of the splicing block (71) is fixedly connected with a connecting pin shaft (80), a tightening cavity (72) is arranged in the tightening cylinder (73), the tightness cavity (72) is internally and slidably connected with a tightness main shaft (74), the right end face of the tightness main shaft (74) is fixedly connected with a tightness push rod (75), the upper end of the elastic push rod (75) is rotatably connected with an elastic connecting shaft (76) the other end of which is rotatably connected with a rotating pin (77), the lower end of the rotating pin (77) is fixedly connected with an elastic main claw (78), the elastic main claw (78) is rotationally connected with the connecting pin shaft (80), the right end face of the splicing block (71) is fixedly connected with an elastic fixing claw (79), and a welding rod (48) is arranged in front of the elastic fixing claw (79).

7. A welding head for a reciprocating automatic welding machine as claimed in claim 6, wherein: continuous mechanism (13) that connects of welding rod includes terminal surface fixed connection's welding rod casket (40) under locating plate (39), welding rod casket (40) are located reciprocal welding mechanism (12) right side, welding rod casket (40) left end face fixedly connected with changes motor (65), it has change main shaft (64) to change motor (65) up end power connection, terminal surface fixedly connected with collects storehouse (49) under welding rod casket (40), collect storehouse (49) and can assemble the welding residue, be equipped with in welding rod casket (40) and prepare chamber (81), prepare chamber (81) rear end wall fixedly connected with other end fixedly connected with prepares preparation spring (82) of push pedal (83), it is equipped with a set of welding rod (48) to prepare push pedal (83) front end.

8. A welding head for a reciprocating automatic welding machine as claimed in claim 7, wherein: an auxiliary plate (84) is fixedly connected to the right end wall of the preparation cavity (81), a preparation motor (85) and a guide frame (88) are fixedly connected to the left end face of the welding rod box (40), a preparation main shaft (86) is dynamically connected to the front end face of the preparation motor (85), a preparation shifting shaft (87) is slidably connected to the welding rod box (40) in the left-right direction, the preparation shifting shaft (87) penetrates through the left end wall of the preparation cavity (81), the preparation shifting shaft (87) is slidably connected to the guide frame (88), and the preparation main shaft (86) and the preparation shifting shaft (87) are in meshed transmission.