CN216462731U - Automatic welding machine for square tubes and gaskets - Google Patents

Abstract

The utility model relates to the technical field of welding production, in particular to an automatic welding machine for a square tube and a gasket, which has the advantages of automatic feeding, blanking and welding, high welding consistency and high working efficiency; still include the workstation, square pipe mechanism, the gasket mechanism, the welding machine support, the roller, gear motor, four locating plates, four depression bar supports, four depression bars, four depression bar jars, four clamp plates and four gasket round pins, install square pipe mechanism and gasket mechanism on the workstation, the roller rotates with the workstation and is connected, gear motor installs on the lateral wall of workstation, gear motor's output shaft and roller are connected with one heart, all install the locating plate on the four lateral walls of roller, four depression bar supports are evenly installed on the left end face of roller, the depression bar support rotates with the middle part of depression bar and is connected, the both ends of depression bar jar rotate with the left end and the depression bar support of depression bar respectively and be connected, four clamp plates are installed respectively on the lateral wall that the right-hand member of four depression bars is close to the roller, the right-hand member at the depression bar is installed to the gasket round pin.

Description

Automatic welding machine for square tubes and gaskets

Technical Field

The utility model relates to the technical field of welding production, in particular to an automatic welding machine for a square tube and a gasket.

Background

In industrial production, the welding machine is the production facility commonly used, and the welding often adopts manual welding in the past, and the welding process of square pipe and gasket, conventional processing method is that the manual work cooperatees gasket and square pipe, transmits to the welding bench again and welds, and difficult avoiding colliding with in the transmission course makes square pipe and gasket dislocation, and this kind of mode product quality relies on operating personnel's technical level, causes the uniformity of batch part to hang down, and operating speed is slow, and work efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the automatic welding machine for the square tube and the gasket, which has the advantages of automatic feeding, blanking and welding, high welding consistency and high working efficiency.

The utility model relates to an automatic welding machine for a square tube and a gasket, which further comprises a workbench, a square tube mechanism, a gasket mechanism, a welding machine support, a roller, a speed reducing motor, four positioning plates, four pressure bar supports, four pressure bars, four pressure bar cylinders, four pressure plates and four gasket pins, wherein the upper end surface of the workbench is provided with the square tube mechanism and the gasket mechanism, two ends of the roller are rotatably connected with the workbench, the speed reducing motor is arranged on the side wall of the workbench, the output shaft of the speed reducing motor is concentrically connected with one end of the roller, the four side walls of the roller are respectively provided with the positioning plates, the four pressure bar supports are uniformly arranged on the left end surface of the roller, the four pressure bar supports are respectively rotatably connected with the middle parts of the four pressure bars, two ends of the four pressure bar cylinders are respectively rotatably connected with the left end of the pressure bars and the pressure bar supports, the four pressure plates are respectively arranged on the right ends of the four pressure bars close to the side wall of the roller, and the four gasket pins are arranged at the right ends of the pressure bars, the four gasket pins are provided with magnetic gasket pins and tension springs; loading a plurality of square tubes on a square tube mechanism, loading a plurality of gaskets on a gasket mechanism, conveying a square tube by the square tube mechanism to be close to the front side surface of a roller, positioning and limiting the left end surface of the square tube by a corresponding positioning plate, conveying a square tube by the gasket mechanism to be close to the front side surface of the roller, extending a corresponding pressure rod cylinder, pushing the pressure rod to turn over along a pressure rod support to enable the pressure rod to press the square tube on the front end surface of the roller, simultaneously penetrating a gasket through a gasket pin and pressing the gasket on the corresponding position on the side wall of the square tube, driving the roller to rotate 90 degrees by a speed reduction motor, rotating the square tube to the upper end surface of the roller, automatically welding the gasket on the square tube by a welding machine loaded on the welding machine support, driving the roller to rotate 90 degrees by the speed reduction motor again, turning the welded square tube and the gasket to the rear side of the roller, contracting the corresponding pressure rod cylinder, turning the pressure rod open along the pressure rod support, the square pipe and the gasket that the welding was accomplished drop to the charging basket of workstation below in, realize automatic unloading, accomplish an automatic weld circulation, need not manual welding, welding speed is fast, and square pipe and gasket welding uniformity are high, and welding quality is high, improves work efficiency.

Preferably, the roller type rolling device further comprises four adjusting grooves, four adjusting blocks and a plurality of mounting holes, the adjusting grooves are formed in the four side walls of the roller, the four adjusting blocks are respectively mounted in the four adjusting grooves, the four adjusting blocks are respectively in fastening connection with the four adjusting grooves through bolts, a plurality of mounting holes are formed in the four pressure rods, the mounting holes are arranged in a matrix, and the bolts penetrate through the mounting holes and are in fastening connection with the pressure rods; the relative mounting position of the positioning plate and the adjusting groove is changed, the position of the positioning plate is changed, the positioning plate is enabled to position and limit the square tubes with fixed length, the mounting position of the pressing rod on the pressing rod is changed, the pressing rod is enabled to be matched with the positioning plate to clamp the square tubes with different lengths, and the universality of the device is improved.

Preferably, the square tube mechanism further comprises a feeding plate, four angle steels, a feeding cylinder, a pushing tube column, two guide frames, two guide plates and a plurality of guide wheels, the feeding plate is fixedly connected with the workbench, the four angle steels are installed on the upper end surface of the feeding plate, the angle steels form a square tube loading groove, discharge ports are formed in two ends of the bottom of the square tube loading groove, the fixed end of the feeding cylinder is installed on the lower end surface of the feeding plate, the moving end of the feeding cylinder is fixedly connected with the pushing tube column, the pushing tube column is installed on the upper end of the feeding plate in a sliding mode, the lower ends of the two guide frames are fixedly connected with the workbench, the two guide plates are connected with the two guide frames, the two guide plates are horizontally arranged up and down, the plurality of guide wheels are rotatably installed on the two guide plates, and guide cam edges are arranged on the edges of the guide wheels; a plurality of square pipes load in the square pipe loading chute that four angle irons are constituteed, and the removal end extension of material loading jar will push away the tubular column and pass two discharge gates of square pipe loading chute bottom and release square pipe from square pipe loading chute, and square pipe moves to the preceding lateral wall of roller along a plurality of leading wheel direction, realizes automatic feeding, and the material loading is stable, and is small, simple structure, improve equipment practicality.

Preferably, the gasket mechanism further comprises a gasket groove, a pushing mechanism, a motor, a gasket push plate and a gasket groove, the gasket groove is fixedly connected with the workbench through a support, the pushing mechanism is mounted at the right end of the gasket groove, a feed opening and a dodging opening are formed in the left end of the gasket groove, the motor is mounted on the outer side wall of the left end of the gasket groove, the gasket push plate is mounted on an output shaft of the motor and is arranged as a sector plate, the gasket push plate penetrates through the dodging opening of the gasket groove, the gasket groove is mounted on the lower end face of the left end of the gasket groove, and the gasket groove is communicated with the feed opening of the gasket groove; the compression gasket pushing mechanism loads a plurality of gaskets into the gasket groove, the gasket pushing mechanism is loosened, the plurality of gaskets are compressed on the inner wall of the left end of the gasket groove by the gasket pushing mechanism, the gasket pushing plate is driven by the motor to rotate, the lower edge of the gasket pushing plate pushes the gasket close to the inner wall of the left end of the gasket groove to the gasket groove through the lower opening of the gasket groove, the gasket meets the gasket pin in the gasket groove, the gasket is adsorbed on the gasket pin in a sleeved mode, automatic feeding is achieved, and the working efficiency of equipment is improved.

Preferably, the pad pushing mechanism further comprises a fixed plate, a spring and a movable plate, the fixed plate is mounted at the right end of the gasket groove and movably and slidably mounted in the gasket groove, two ends of the spring are respectively connected with the fixed plate and the movable plate, and the effective elastic stroke of the spring is long; compression spring makes and pushes away the right-hand member that fills up the mechanism and reach the gasket groove, loads a plurality of gaskets in the gasket groove, loosens the fly leaf, slides and compresses tightly a plurality of gaskets under the effect of spring force, simple structure, and is with low costs, realizes stabilizing the material loading, improve equipment practicality.

Preferably, the two guide frames are respectively provided with a long mounting slotted hole, and a plurality of mounting bolts respectively penetrate through the long mounting slotted holes of the two guide frames to fixedly mount the two guide plates; the relative position of the long mounting grooves of the two guide frames opposite to each other through the two guide plates is changed, the distance between the two guide plates is changed, the guide wheels can guide and convey square pipes with different widths, and the universality of the device is improved.

Compared with the prior art, the utility model has the beneficial effects that: loading a plurality of square tubes on a square tube mechanism, loading a plurality of gaskets on a gasket mechanism, conveying a square tube by the square tube mechanism to be close to the front side surface of a roller, positioning and limiting the left end surface of the square tube by a corresponding positioning plate, conveying a square tube by the gasket mechanism to be close to the front side surface of the roller, extending a corresponding pressure rod cylinder, pushing the pressure rod to turn over along a pressure rod support to enable the pressure rod to press the square tube on the front end surface of the roller, simultaneously penetrating a gasket through a gasket pin and pressing the gasket on the corresponding position on the side wall of the square tube, driving the roller to rotate 90 degrees by a speed reduction motor, rotating the square tube to the upper end surface of the roller, automatically welding the gasket on the square tube by a welding machine loaded on the welding machine support, driving the roller to rotate 90 degrees by the speed reduction motor again, turning the welded square tube and the gasket to the rear side of the roller, contracting the corresponding pressure rod cylinder, turning the pressure rod open along the pressure rod support, the square pipe and the gasket that the welding was accomplished drop to the charging basket of workstation below in, realize automatic unloading, accomplish an automatic weld circulation, need not manual welding, welding speed is fast, and square pipe and gasket welding uniformity are high, and welding quality is high, improves work efficiency.

Drawings

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

FIG. 2 is a schematic view of the construction of the gear motor and rollers and their components;

FIG. 3 is an enlarged schematic view of the square tube mechanism;

FIG. 4 is an enlarged schematic view of the shim mechanism;

in the drawings, the reference numbers: 1. a work table; 2. a square tube mechanism; 3. a gasket mechanism; 4. a welder bracket; 5. a roller; 6. a reduction motor; 7. positioning a plate; 8. a pressure bar support; 9. a pressure lever; 10. A pressure bar cylinder; 11. pressing a plate; 12. a shim pin; 13. an adjustment groove; 14. an adjusting block; 15. mounting holes; 16. feeding plates; 17. angle steel; 18. a feeding cylinder; 19. pushing the pipe column; 20. a guide frame; 21. a guide plate; 22. a guide wheel; 23. a gasket groove; 24. a pad pushing mechanism; 25. a motor; 26. a gasket push plate; 27. a pad chip groove.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully hereinafter with reference to the accompanying drawings. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Example 1

An automatic welding machine for a square tube and a gasket comprises a workbench 1, a square tube mechanism 2, a gasket mechanism 3, a welding machine support 4, a roller 5, a speed reducing motor 6, four positioning plates 7, four pressure bar supports 8, four pressure bars 9, four pressure bar cylinders 10, four pressure plates 11 and four gasket pins 12, wherein the square tube mechanism 2 and the gasket mechanism 3 are installed on the upper end face of the workbench 1, two ends of the roller 5 are rotatably connected with the workbench 1, the speed reducing motor 6 is installed on the side wall of the workbench 1, the output shaft of the speed reducing motor 6 is concentrically connected with one end of the roller 5, the positioning plates 7 are installed on the four side walls of the roller 5, the four pressure bar supports 8 are uniformly installed on the left end face of the roller 5, the four pressure bar supports 8 are respectively rotatably connected with the middle parts of the four pressure bars 9, two ends of the four pressure bar cylinders 10 are respectively rotatably connected with the left end of the pressure bar 9 and the pressure bar supports 8, the four pressing plates 11 are respectively arranged on the right ends of the four pressing rods 9 close to the side walls of the rollers 5, the four gasket pins 12 are arranged at the right ends of the pressing rods 9, and the four gasket pins 12 are respectively provided with magnetic gasket pins and tension springs; loading a plurality of square pipes on a square pipe mechanism 2, loading a plurality of gaskets on a gasket mechanism 3, conveying a square pipe by the square pipe mechanism 2 to be close to the front side surface of a roller 5, positioning and limiting the left end surface of the square pipe by a corresponding positioning plate 7, conveying a square pipe by the gasket mechanism 3 to be close to the front side surface of the roller 5, extending a corresponding pressure rod cylinder 10, pushing a pressure rod 9 to turn over along a pressure rod support 8 by the pressure rod cylinder 10, enabling a pressure plate 11 to press the square pipe on the front end surface of the roller 5, simultaneously penetrating a gasket by a gasket pin 12 and pressing the gasket on the corresponding position on the side wall of the square pipe, driving the roller 5 to rotate by 90 degrees by a speed reducing motor 6, rotating the square pipe to the upper end surface of the roller 5, automatically welding the gasket on the square pipe by a welding machine loaded on the welding machine support 4, driving the roller 5 to rotate by 90 degrees by the speed reducing motor 6 again, and turning the welded square pipe and gasket to the rear side of the roller 5, corresponding depression bar jar 10 shrink opens depression bar 9 along the upset of depression bar support 8, and the side pipe and the gasket that the welding was accomplished drop to the charging basket of workstation 1 below in, realize automatic unloading, accomplish an automatic weld circulation, need not manual welding, and welding speed is fast, and side pipe and gasket welding uniformity are high, and welding quality is high, improves work efficiency.

Example 2

An automatic welding machine for a square tube and a gasket comprises a workbench 1, a square tube mechanism 2, a gasket mechanism 3, a welding machine support 4, a roller 5, a speed reducing motor 6, four positioning plates 7, four pressure bar supports 8, four pressure bars 9, four pressure bar cylinders 10, four pressure plates 11 and four gasket pins 12, wherein the square tube mechanism 2 and the gasket mechanism 3 are installed on the upper end face of the workbench 1, two ends of the roller 5 are rotatably connected with the workbench 1, the speed reducing motor 6 is installed on the side wall of the workbench 1, the output shaft of the speed reducing motor 6 is concentrically connected with one end of the roller 5, the positioning plates 7 are installed on the four side walls of the roller 5, the four pressure bar supports 8 are uniformly installed on the left end face of the roller 5, the four pressure bar supports 8 are respectively rotatably connected with the middle parts of the four pressure bars 9, two ends of the four pressure bar cylinders 10 are respectively rotatably connected with the left end of the pressure bar 9 and the pressure bar supports 8, the four plates 11 are respectively arranged on the right ends of the four pressure rods 9 close to the side walls of the rollers 5, the four gasket pins 12 are arranged at the right ends of the pressure rods 9, and the four gasket pins 12 are respectively provided with magnetic gasket pins and tension springs; the roller device is characterized by further comprising four adjusting grooves 13, four adjusting blocks 14 and a plurality of mounting holes 15, the adjusting grooves 13 are formed in the four side walls of the roller 5, the four adjusting blocks 14 are respectively mounted in the four adjusting grooves 13, the four adjusting blocks 14 are respectively fastened and connected with the four adjusting grooves 13 through bolts, a plurality of mounting holes 15 are formed in the four pressure rods 9, the mounting holes 15 are arranged in a matrix, and the bolts penetrate through the mounting holes 15 and are fastened and connected with the pressure plate 11; the square tube mechanism 2 also comprises a feeding plate 16, four angle steels 17 and a feeding cylinder 18, the device comprises a pushing column 19, two guide frames 20, two guide plates 21 and a plurality of guide wheels 22, wherein a feeding plate 16 is fixedly connected with a workbench 1, four angle steels 17 are arranged on the upper end surface of the feeding plate 16, the angle steels 17 form a square tube loading groove, discharge holes are formed in two ends of the bottom of the square tube loading groove, the fixed end of a feeding cylinder 18 is arranged on the lower end surface of the feeding plate 16, the moving end of the feeding cylinder 18 is fixedly connected with the pushing column 19, the pushing column 19 is slidably arranged on the upper end of the feeding plate 16, the lower ends of the two guide frames 20 are fixedly connected with the workbench 1, the two guide plates 21 are connected with the two guide frames 20, the two guide plates 21 are horizontally arranged up and down, the plurality of guide wheels 22 are rotatably arranged on the two guide plates 21, and guide cam edges are arranged on the edges of the guide wheels 22; the gasket mechanism 3 further comprises a gasket groove 23, a pushing mechanism 24, a motor 25, a gasket push plate 26 and a gasket groove 27, the gasket groove 23 is fixedly connected with the workbench 1 through a support, the pushing mechanism 24 is installed at the right end of the gasket groove 23, a feed opening and an avoiding opening are formed in the left end of the gasket groove 23, the motor 25 is installed on the outer side wall of the left end of the gasket groove 23, the gasket push plate 26 is installed on an output shaft of the motor 25, the gasket push plate 26 is arranged to be a fan-shaped plate, the gasket push plate 26 penetrates through the avoiding opening of the gasket groove 23, the gasket groove 27 is installed on the lower end face of the left end of the gasket groove 23, and the gasket groove 27 is communicated with the feed opening of the gasket groove 23; the relative installation position of the positioning plate 7 and the adjusting groove 13 is changed, the position of the positioning plate 7 is changed, the positioning plate 7 is enabled to position and limit square tubes with fixed lengths, the installation position of the pressing plate 11 on the pressing rod 9 is changed, the pressing plate 11 is enabled to be matched with the positioning plate 7 to clamp the square tubes with different lengths, a plurality of square tubes are loaded in a square tube loading groove formed by four angle steels 17, the moving end of the feeding cylinder 18 is extended, the pushing pipe column 19 penetrates through two discharge ports at the bottom of the square tube loading groove to push the square tubes out of the square tube loading groove, the square tubes move to the front side wall of the roller 5 along the guide wheels 22 in a guiding mode, automatic feeding is achieved, the plurality of gaskets are loaded into the gasket groove 23 by the compression pushing mechanism 24, the pushing mechanism 24 is loosened, the plurality of gaskets are pressed on the inner wall at the left end of the gasket groove 23 by the pushing mechanism 24, the pushing plate 26 is driven to rotate by the motor 25, the lower edge of the gasket pushing plate 26 pushes the gasket close to the inner wall at the left end of the gasket groove 23 to be pushed out to the gasket through the lower opening of the gasket groove 23 In the gasket groove 27, the gasket meets the gasket pin 12 in the gasket groove 27, and is sleeved and adsorbed on the gasket pin 12, so that automatic loading of the gasket is realized.

Example 3

An automatic welding machine for a square tube and a gasket comprises a workbench 1, a square tube mechanism 2, a gasket mechanism 3, a welding machine support 4, a roller 5, a speed reducing motor 6, four positioning plates 7, four pressure bar supports 8, four pressure bars 9, four pressure bar cylinders 10, four pressure plates 11 and four gasket pins 12, wherein the square tube mechanism 2 and the gasket mechanism 3 are installed on the upper end face of the workbench 1, two ends of the roller 5 are rotatably connected with the workbench 1, the speed reducing motor 6 is installed on the side wall of the workbench 1, the output shaft of the speed reducing motor 6 is concentrically connected with one end of the roller 5, the positioning plates 7 are installed on the four side walls of the roller 5, the four pressure bar supports 8 are uniformly installed on the left end face of the roller 5, the four pressure bar supports 8 are respectively rotatably connected with the middle parts of the four pressure bars 9, two ends of the four pressure bar cylinders 10 are respectively rotatably connected with the left end of the pressure bar 9 and the pressure bar supports 8, the four pressing plates 11 are respectively arranged on the right ends of the four pressing rods 9 close to the side walls of the rollers 5, the four gasket pins 12 are arranged at the right ends of the pressing rods 9, and the four gasket pins 12 are respectively provided with magnetic gasket pins and tension springs; the cushion pushing mechanism 24 further comprises a fixed plate, a spring and a movable plate, the fixed plate is mounted at the right end of the cushion groove 23 and movably and slidably mounted in the cushion groove 23, two ends of the spring are respectively connected with the fixed plate and the movable plate, and the effective elastic stroke of the spring is long; the two guide frames 20 are respectively provided with a long mounting slotted hole, and a plurality of mounting bolts respectively penetrate through the long mounting slotted holes of the two guide frames 20 to fixedly mount the two guide plates 21; compression spring makes the mechanism 24 that pushes away the pad reach the right-hand member in gasket groove 23, loads a plurality of gaskets in gasket groove 23, loosens the fly leaf, slides and compresses tightly a plurality of gaskets under the effect of spring force, realizes stabilizing the material loading, can change the resistance welding device according to technology, through the relative position who changes two leading truck 20's that two deflectors 21 are relative long mounting groove, changes the interval of two deflectors 21, makes the square pipe of different width of direction transport of a plurality of leading wheels 22.

As shown in fig. 1 to 4, in the automatic welding machine for the square tube and the gasket of the utility model, when in operation, firstly, the pushing mechanism 24 is compressed to load a plurality of gaskets into the gasket groove 23, the pushing mechanism 24 is released to enable the pushing mechanism 24 to press the gaskets on the inner wall of the left end of the gasket groove 23, a plurality of square tubes are loaded in the square tube loading groove formed by four angle steels 17, the moving end of the feeding cylinder 18 is extended, the pushing column 19 passes through two discharge ports at the bottom of the square tube loading groove to push the square tubes out of the square tube loading groove, the square tubes move to the front side wall of the roller 5 along the guide wheels 22, the left end surface of the square tube is positioned and limited by the corresponding positioning plate 7, the gasket mechanism 3 conveys one square tube to be close to the front side surface of the roller 5, the corresponding pressure rod cylinder 10 is extended, the pressure rod cylinder 10 pushes the pressure rod 9 to turn over along the pressure rod support 8, so that the pressure plate 11 presses the square tube on the front end surface of the roller 5, meanwhile, the motor 25 drives the gasket push plate 26 to rotate, the gasket abutting against the inner wall of the left end of the gasket groove 23 is pushed out to the gasket groove 27 through the feed opening of the gasket groove 23 by the lower edge of the gasket push plate 26, the gasket meets the gasket pin 12 in the gasket groove 27 and is adsorbed on the gasket pin 12 in a sleeved mode, the gasket is pressed at a corresponding position on the side wall of the square tube, then the speed reducing motor 6 drives the roller 5 to rotate 90 degrees, the square tube is rotated to the upper end face of the roller 5, finally, the speed reducing motor 6 drives the roller 5 to rotate 90 degrees again, the welded square tube and the welded gasket are turned over to the rear side of the roller 5, the corresponding pressure rod cylinder 10 contracts, the pressure rod 9 is turned over and opened along the pressure rod support 8, the welded square tube and the welded gasket fall into a material basket below the workbench 1, automatic blanking is achieved, and an automatic welding cycle is completed.

The main functions realized by the utility model are as follows: automatic material loading, unloading and welding, the welding uniformity is high, and work efficiency is high.

According to the automatic welding machine for the square pipe and the gasket, the installation mode, the connection mode or the setting mode are common mechanical modes, and the welding machine can be implemented as long as the beneficial effects of the welding machine are achieved; the welding equipment, the speed reducing motor 6, the pressure rod cylinder 10, the feeding cylinder 18, the guide wheel 22 and the motor 25 of the automatic welding machine for the square tube and the gasket are purchased from the market, and technicians in the industry only need to install and operate according to the attached operating instructions without creative labor of the technicians in the field.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (6)

1. The automatic welding machine for the square tube and the gasket is characterized by further comprising a workbench (1), a square tube mechanism (2), a gasket mechanism (3), a welding machine support (4), a roller (5), a speed reducing motor (6), four positioning plates (7), four pressure rod supports (8), four pressure rods (9), four pressure rod cylinders (10), four pressure plates (11) and four gasket pins (12), wherein the square tube mechanism (2) and the gasket mechanism (3) are installed on the upper end face of the workbench (1), two ends of the roller (5) are rotatably connected with the workbench (1), the speed reducing motor (6) is installed on the side wall of the workbench (1), an output shaft of the speed reducing motor (6) is concentrically connected with one end of the roller (5), the positioning plates (7) are installed on four side walls of the roller (5), the four pressure rod supports (8) are uniformly installed on the left end face of the roller (5), four depression bar supports (8) rotate with the middle part of four depression bars (9) respectively and are connected, the both ends of four depression bar jars (10) rotate with the left end and the depression bar support (8) of depression bar (9) respectively and are connected, install respectively on the lateral wall that the right-hand member of four depression bars (9) is close to roller (5), the right-hand member at depression bar (9) is installed in four gasket round pins (12), four gasket round pins (12) all are provided with magnetic gasket round pin and extension spring.

2. The automatic welding machine for the square pipes and the gaskets as claimed in claim 1, further comprising four adjusting grooves (13), four adjusting blocks (14) and a plurality of mounting holes (15), wherein the four side walls of the roller (5) are provided with the adjusting grooves (13), the four adjusting blocks (14) are respectively mounted in the four adjusting grooves (13), the four adjusting blocks (14) are respectively fastened and connected with the four adjusting grooves (13) through bolts, the four pressing rods (9) are respectively provided with the mounting holes (15), the mounting holes (15) are arranged in a matrix, and the bolts penetrate through the mounting holes (15) and are fastened and connected with the pressing plate (11).

3. The automatic welding machine for the square pipe and the gasket according to claim 1, characterized in that the square pipe mechanism (2) further comprises a feeding plate (16), four angle steels (17), a feeding cylinder (18), a pushing pipe column (19), two guide frames (20), two guide plates (21) and a plurality of guide wheels (22), the feeding plate (16) is fixedly connected with the workbench (1), the four angle steels (17) are installed on the upper end surface of the feeding plate (16), the angle steels (17) form a square pipe loading groove, two ends of the bottom of the square pipe loading groove are respectively provided with a discharge hole, the fixed end of the feeding cylinder (18) is installed on the lower end surface of the feeding plate (16), the moving end of the feeding cylinder (18) is fixedly connected with the pushing pipe column (19), the pushing pipe column (19) is slidably installed on the upper end of the feeding plate (16), the lower ends of the two guide frames (20) are fixedly connected with the workbench (1), two deflector plates (21) all are connected with two leading truck (20), and two deflector plates (21) are arranged from top to bottom horizontally, and a plurality of leading wheels (22) rotate and install on two deflector plates (21), and the edge of leading wheel (22) all is provided with the direction cam reason.

4. The automatic welding machine for the square pipes and the gaskets as claimed in claim 1, wherein the gasket mechanism (3) further comprises a gasket groove (23) and a gasket pushing mechanism (24), motor (25), gasket push pedal (26) and pad piece groove (27), gasket groove (23) are through support and workstation (1) fixed connection, gasket mechanism (24) are installed to the right-hand member in gasket groove (23), the left end in gasket groove (23) is provided with the feed opening and dodges the mouth, motor (25) are installed on the left end lateral wall in gasket groove (23), gasket push pedal (26) are installed to the output shaft of motor (25), gasket push pedal (26) set up to the sector plate, gasket push pedal (26) pass the mouth of dodging of gasket groove (23), the lower terminal surface at the left end in gasket groove (23) is installed in pad piece groove (27), the feed opening intercommunication in gasket groove (27) and gasket groove (23) connects.

5. The automatic welding machine for the square pipes and the gaskets as claimed in claim 4, wherein the gasket pushing mechanism (24) further comprises a fixed plate, a spring and a movable plate, the fixed plate is installed at the right end of the gasket groove (23), the movable plate is slidably installed in the gasket groove (23), two ends of the spring are respectively connected with the fixed plate and the movable plate, and the effective elastic stroke of the spring is long.

6. The automatic welding machine for the square pipes and the gaskets as claimed in claim 3, wherein the two guide frames (20) are respectively provided with a long mounting slot hole, and a plurality of mounting bolts respectively penetrate through the long mounting slot holes of the two guide frames (20) to fixedly mount the two guide plates (21).

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