CN112872688A

CN112872688A - Automatic welding machine for steel cylinder

Info

Publication number: CN112872688A
Application number: CN202110206513.8A
Authority: CN
Inventors: 孔令坤; 翟亚勇; 朱文兵
Original assignee: Jiangsu Minnuo Special Equipment Co ltd
Current assignee: Jiangsu Minnuo Special Equipment Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-06-01

Abstract

The utility model belongs to the technical field of steel bottle manufacture equipment and specifically relates to a steel bottle automatic weld machine is related to, including body automatic feed ware, bottle end cover automatic feed ware, bottleneck end cover automatic feed ware, welding station, still include conveying mechanism, location frock and snatch the mechanism, the location frock is used for constituting the body of assembling temporarily with the both ends that bottle end cover and bottleneck end cover were located the body, snatchs the mechanism and is used for assembling the body temporarily on the frock of will fixing a position and snatchs and deliver to welding station and weld. The application provides a steel bottle automatic weld machine, welding process has realized full automation, and latency between the two welding is for snatching the action time of mechanism, snatchs the quick action of mechanism and can make this time neglect, has improved steel bottle welding efficiency greatly.

Description

Automatic welding machine for steel cylinder

Technical Field

The application relates to the field of steel bottle manufacture equipment, in particular to an automatic steel bottle welding machine.

Background

The steel cylinder is a steel cylinder for storing high-pressure oxygen, gas, liquefied petroleum gas, etc. The steel cylinder is usually manufactured by welding a steel plate to form a cylindrical structure after the steel plate is curled, and then welding end covers at two ends of the cylindrical structure respectively to form a cylinder bottom and a cylinder mouth.

Since steel cylinders are commonly used to store high pressure gases, the weld quality requirements during the machining of the steel cylinders are very high. For some smaller (less than 1 meter in length) steel cylinders, some enterprises still adopt small steel cylinders for manual welding because of light weight and short welding seams, and the steel cylinders are easy to manually weld. But manual welding is inefficient because need be earlier with the frock with two end covers location in the both ends of tubular structure, weld again, and manual positioning end cover speed is slow, and makes the frock loosen the steel bottle and take off the steel bottle again from the frock after accomplishing the welding and need the time.

Disclosure of Invention

In order to solve the problem of manual welding steel bottle inefficiency, this application provides a steel bottle automatic weld machine.

The application provides a steel bottle automatic weld machine adopts following technical scheme:

an automatic welding machine for steel cylinders comprises an automatic bottle body feeder, an automatic bottle bottom end cover feeder, an automatic bottle mouth end cover feeder, a welding station, a conveying mechanism, a positioning tool and a grabbing mechanism, wherein the positioning tool is used for positioning a bottle bottom end cover and a bottle mouth end cover at two ends of a bottle body to form a temporary assembly body, and the grabbing mechanism is used for grabbing the temporary assembly body on the positioning tool and conveying the temporary assembly body to the welding station for welding;

the conveying mechanism is used for conveying the positioning tool to a first station to receive the feeding of the automatic bottle body feeder, conveying the positioning tool to a second station to receive the feeding of the automatic bottle bottom end cover feeder and the automatic bottle mouth end cover feeder, and conveying the positioning tool to a third station to allow the grabbing mechanism to grab the temporary spliced body;

clamping mechanisms are arranged on two sides of the welding station and used for clamping the temporary assembly body along the axial direction of the temporary assembly body.

By adopting the technical scheme, when the positioning tool is positioned at the first station, the discharge port of the automatic bottle body feeder falls down the bottle body, the bottle body falls into the positioning tool, and then the positioning tool moves to the second station;

when the positioning tool is located at the second station, the bottle bottom end cover falls into the positioning tool through the discharge hole of the automatic bottle bottom end cover feeder, the bottle mouth end cover falls into the positioning tool through the discharge hole of the automatic bottle bottom end cover feeder, then the positioning tool positions the bottle bottom end cover and the bottle mouth end cover at two ends of the bottle body to form a temporary assembly body, and then the positioning tool moves to the third station;

when the positioning tool is located at a third station, the grabbing mechanism grabs the splicing seam of the temporary assembly body, the third station loosens the temporary assembly body, the grabbing mechanism conveys the temporary assembly body to a welding station, then the clamping mechanism clamps the temporary assembly body, then the grabbing mechanism loosens the temporary assembly body and resets, then welding is started, and the clamping mechanism loosens the steel cylinder after welding is completed.

In the welding process, the positioning tool is moved to the first station and the second station in sequence to receive the bottle body, the bottle bottom end cover and the bottle mouth end cover, then moved to the third station, and when the welding of the previous steel bottle is completed, the grabbing mechanism immediately grabs the temporary assembly body of the third station to carry out the next welding.

The welding process is completely automatic, the waiting time between two times of welding is the action time of the grabbing mechanism, and the quick action of the grabbing mechanism can neglect the action time, so that the welding efficiency of the steel cylinder is greatly improved.

Optionally, the positioning tool comprises a pair of clamping jaws driven by a cylinder, and a first arc-shaped groove and a second arc-shaped groove are formed in each clamping jaw; when the positioning tool is positioned at the first station, the first arc-shaped groove is positioned under the discharge port of the automatic bottle body feeder, and the inner wall of the first arc-shaped groove can be attached to the bottle body; when the positioning tool is located at the second station, the second arc-shaped groove is just opposite to the end part of the bottle body, and the inner wall of the second arc-shaped groove can be attached to the bottle bottom end cover or the bottle mouth end cover.

By adopting the technical scheme, the positioning tool is used for receiving and positioning the bottle body, the bottle bottom end cover and the bottle mouth end cover.

Optionally, snatch the mechanism and including erectting the motor in conveying mechanism top, motor drive connects the rotor plate, is fixed with telescopic cylinder on the rotor plate, fixes two clamping jaw cylinders on telescopic cylinder's the piston rod, and two clamping jaw cylinders are used for pressing from both sides body and bottle bottom end cover's concatenation department, body and bottleneck end cover's concatenation department respectively.

By adopting the technical scheme, the motor drives the rotating plate to rotate, so that when the piston rod of the telescopic cylinder is vertically downward, the piston rod extends, then the temporary assembly body in the positioning tool is clamped by the clamping jaw cylinder, then the temporary assembly body is loosened by the positioning tool, and then the piston rod of the telescopic cylinder is retracted;

then the motor drives the rotating plate to rotate, when a piston rod of the telescopic cylinder horizontally points to the welding station, the piston rod extends, then the clamping mechanisms on the two sides of the welding station clamp the temporary assembly body, then the clamping jaw cylinder loosens the temporary assembly body, and then the piston rod of the telescopic cylinder retracts to start welding.

Optionally, the clamping mechanism includes actuating mechanism, guide rail, a pair of slider, and actuating mechanism is used for driving a pair of slider and removes along guide rail length direction, all is equipped with rotatable tight piece that supports on the face in opposite directions of a pair of slider, supports tight piece and is used for compressing tightly the body of assembling temporarily along the axial of the body of assembling temporarily, supports and is equipped with the third arc wall on the tight piece, and the inner wall of third arc wall can laminate with bottle bottom end cover or bottleneck end cover.

By adopting the technical scheme, the function of clamping the temporary assembly body when the pair of the abutting blocks move oppositely and loosening the temporary assembly body when the pair of the abutting blocks move back to back is realized, and the abutting blocks actively rotate to enable the welding gun to be immobile and complete one-circle welding around the temporary assembly body.

Optionally, body automatic feeder includes the storage case, and the bottom in the storage case is equipped with the slope, and storage case outer wall is connected with ejection of compact slide, and the lower on slope communicates with each other with ejection of compact slide, is equipped with two second cylinders that are used for intercepting the body on the ejection of compact slide, only can hold a body between the piston rod of two second cylinders.

Through adopting above-mentioned technical scheme, the body can roll downwards automatically on slope, and the second cylinder that is close to the storage case blocks the body on the slope, and when the piston rod upward movement of this second cylinder, all bodies roll downwards and are kept off by the piston rod of another second cylinder, and the piston rod downstream of last second cylinder stops all bodies except the body of most terminal this moment, and when the needs ejection of compact, the second cylinder release most terminal body can.

Optionally, the bottle bottom end cover automatic feeder and the bottle mouth end cover automatic feeder both include an automatic feeding vibration disc and a second discharging slide, the second discharging slide is connected to a discharging port of the automatic feeding vibration disc, and the discharging port of the second discharging slide is located right above the second station.

By adopting the technical scheme, the automatic feeding of the bottle bottom end cover and the bottle mouth end cover to the positioning tool is realized.

Optionally, the conveying mechanism comprises a linear guide rail, a moving seat is arranged on the linear guide rail, and the positioning tool is arranged on the upper surface of the moving seat.

Through adopting above-mentioned technical scheme, linear guide can be with location frock quick travel to first station, second station and third station.

Optionally, a liftable light barrier is arranged between the welding station and the grabbing mechanism, and the grabbing mechanism passes through the liftable light barrier after the light barrier rises.

By adopting the technical scheme, the light barrier is lowered during welding, so that arc light is shielded, and the light pollution degree is reduced.

Optionally, the light barrier includes an upper plate and a lower plate hinged to each other, and the upper plate is connected to the lifting mechanism.

By adopting the technical scheme, foreign matters can be adhered to the welding head after long-time welding, and the upper plate is hinged with the lower plate, so that the lower plate can be conveniently turned over to clean the welding head.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the welding process realizes full automation, and the welding efficiency of the steel cylinder is greatly improved;

2. the waiting time between two times of welding is the action time of the grabbing mechanism, the quick action of the grabbing mechanism can make the time neglected, and the steel cylinder welding efficiency is greatly improved.

Drawings

FIG. 1 is a schematic view of the overall structure of an automatic steel cylinder welding machine in the embodiment of the present application;

FIG. 2 is a schematic structural diagram of a positioning tool and a temporary assembly in the embodiment of the present application;

FIG. 3 is a schematic diagram of an automatic bottle feeder according to an embodiment of the present application;

fig. 4 is a schematic internal structural diagram of a welding cabinet in an embodiment of the present application.

Description of reference numerals: 1. an automatic bottle feeder; 2. an automatic feeder for bottle bottom end caps; 3. automatic feeder for bottle mouth end cap; 4. a welding station; 5. a conveying mechanism; 6. positioning a tool; 7. a grabbing mechanism; 8. a bottle bottom end cap; 9. a bottle mouth end cover; 10. a bottle body; 11. a temporary assembly body; 12. a first station; 13. a second station; 14. a third station; 15. a cylinder; 16. a clamping jaw; 17. a first arc-shaped slot; 18. a second arc-shaped slot; 19. a motor; 20. a rotating plate; 21. a telescopic cylinder; 22. a clamping jaw cylinder; 23. a clamping mechanism; 24. a guide rail; 25. a slider; 26. a propping block; 27. a third arc-shaped slot; 28. a second guide rail; 29. a material storage box; 30. a slope; 31. a discharge chute; 32. a second cylinder; 33. a second discharge chute; 34. a linear guide rail; 35. a movable seat; 36. a light barrier; 37. an upper plate; 38. a lower plate; 39. a lifting mechanism; 40. welding the cabinet; 41. a gantry; 42. a flat plate; 43. a connecting rod; 44. a chute; 45. a channel.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses steel bottle automatic weld machine. Referring to fig. 1, the automatic steel bottle welding machine comprises an automatic bottle body feeder 1, an automatic bottle bottom end cover feeder 2, an automatic bottle mouth end cover feeder 3, a conveying mechanism 5, a grabbing mechanism 7, a positioning tool 6 and a welding cabinet 40. The transport mechanism 5 is a moving base 35 that moves on a linear guide 34, and the moving base 35 is driven by a telescopic rod or a nut base on a lead screw. The automatic bottle body feeder 1 and the welding cabinet 40 are respectively located at both ends of the linear guide rail 34, and the automatic bottle bottom cap feeder 2 and the automatic bottle mouth cap feeder 3 are respectively located at both sides of the linear guide rail 34.

Referring to fig. 1, a positioning tool 6 is disposed on an upper surface of the moving seat 35, the positioning tool 6 includes a cylinder 15 and two clamping jaws 16, the two clamping jaws 16 are respectively fixed on two independent piston rods at two ends of the cylinder 15, and the two clamping jaws 16 are symmetrical with respect to the cylinder 15.

Referring to fig. 2, the clamping jaw 16 is L-shaped, the clamping jaw 16 has a horizontal surface and a vertical surface connected with each other, the horizontal surface is provided with a first arc-shaped groove 17, and the vertical surface is provided with a second arc-shaped groove 18.

Referring to fig. 1 and 2, when the first arc-shaped groove 17 is located under the discharge port of the automatic bottle body feeder 1, the positioning tool 6 is located at the first station 12 of the linear guide rail 34, the falling bottle body 10 just falls into the first arc-shaped groove 17, the inner wall of the first arc-shaped groove 17 is attached to the bottle body 10, and the second arc-shaped groove 18 is just opposite to the end of the bottle body 10.

Referring to fig. 3, the automatic bottle feeder 1 includes a material storage box 29, a material discharging chute 31 and two second cylinders 32, the material discharging chute 31 is fixed on the outer wall of the material storage box 29, and the material discharging chute 31 is communicated with the interior of the material storage box 29. The bottom in the storage box 29 is provided with a slope 30, and the lowest part of the slope 30 is communicated with a discharging slideway 31. Two second cylinders 32 are fixed on the outer wall of the discharging slideway 31, the piston rods of the second cylinders 32 extend into the discharging slideway 31 to intercept the bottle body 10, and only one bottle body 10 can be accommodated between the piston rods of the two second cylinders 32.

Referring to fig. 3, the bottle bodies 10 can automatically roll downwards on the slope 30, the second cylinder 32 close to the storage box 29 blocks the bottle bodies 10 on the slope 30, when the piston rod of the second cylinder 32 moves upwards, all the bottle bodies 10 roll downwards until being blocked by the piston rod of another second cylinder 32, at this time, the piston rod of the previous second cylinder 32 moves downwards to block all the bottle bodies 10 except the endmost bottle body 10, and when the discharge is needed, the second cylinder 32 releases the endmost bottle body 10.

Referring to fig. 1, after the positioning tool 6 receives the bottle body 10 at the first station 12, the positioning tool moves to a position between the automatic bottle bottom end cover feeder 2 and the automatic bottle mouth end cover feeder 3 to receive the bottle bottom end cover 8 and the bottle mouth end cover 9 at the same time. The automatic feeder 2 for the bottle bottom end cover and the automatic feeder 3 for the bottle mouth end cover are both an automatic feeding vibration disc arranged in a cabinet, the discharge port of the automatic feeding vibration disc is connected with a second extended discharge slideway 33, and a hole is formed in the cabinet for the second discharge slideway 33 to extend out.

Referring to fig. 1, the position of the linear guide rail 34 between the discharge ports of the two second discharge chutes 33 is the second station 13, and when the positioning tool 6 moves to the second station 13 and the piston rod of the cylinder 15 is in an extended state, the discharge ports of the two second discharge chutes 33 are respectively located right above the first arc-shaped grooves 17 on the two clamping jaws 16. The mode of controlling the bottle bottom end cover 8 and the bottle mouth end cover 9 to discharge materials one by one on the second discharging slide way 33 is the same as the mode of controlling the bottle bodies 10 to discharge materials one by one on the discharging slide way 31, and is also the mode of intercepting through two second air cylinders 32.

Referring to fig. 2, the positioning tool 6 is used for receiving the bottle body 10, the bottle bottom end cover 8 and the bottle mouth end cover 9, and then controlling the two clamping jaws 16 to move in opposite directions through the air cylinder 15, so that the inner wall of the second arc-shaped groove 18 is attached to the bottle bottom end cover 8 or the bottle mouth end cover 9, and the bottle bottom end cover 8 and the bottle mouth end cover 9 are positioned at two ends of the bottle body 10 to form a temporary assembly body 11.

Referring to fig. 1, a grabbing mechanism 7 driven by a motor 19, a telescopic cylinder 21 and a clamping jaw cylinder 22 is erected right above one end of a linear guide rail 34 close to a welding cabinet 40 through a portal frame 41, and the grabbing mechanism 7 is used for grabbing a temporary assembly 11 on a positioning tool 6 and delivering the temporary assembly to a welding station 4 in the welding cabinet 40 for welding.

Referring to fig. 1, the motor 19 is fixed to the gantry 41, the rotating plate 20 is fixed to a rotating shaft of the motor 19, and the rotating shaft of the rotating plate 20 is horizontal. The telescopic cylinder 21 is fixed to the rotating plate 20, and a piston rod of the telescopic cylinder 21 is rotatable vertically and horizontally with rotation of the rotating plate 20. A flat plate 42 is vertically fixed on a piston rod of the telescopic cylinder 21, two clamping jaw cylinders 22 are respectively fixed at two ends of the flat plate 42, and the two clamping jaw cylinders 22 are respectively used for clamping the splicing position of the bottle body 10 and the bottle bottom end cover 8 and the splicing position of the bottle body 10 and the bottle mouth end cover 9.

Referring to fig. 1, a position right below the gantry 41 on the linear guide rail 34 is a third station 14, when the conveying mechanism 5 conveys the positioning tool 6 to the third station 14, the motor 19 drives the telescopic cylinder 21 to rotate in a vertical and downward state, and a piston rod of the telescopic cylinder 21 extends and then can be used for clamping the temporary assembly 11 by using the clamping jaw cylinder 22.

Referring to fig. 4, in addition to the welding station 4 for placing the welding gun for welding, clamping mechanisms 23 are disposed on two sides of the welding station 4 in the welding cabinet 40, and the clamping mechanisms 23 are used for clamping the temporary assembly 11 along the axial direction of the temporary assembly 11. The clamping mechanism 23 is composed of a driving mechanism, a guide rail 24 and a pair of sliders 25, the driving mechanism is a nut seat on a telescopic rod or a lead screw, and the driving mechanism is used for driving the pair of sliders 25 to synchronously move in opposite directions or synchronously move in opposite directions along the length direction of the guide rail 24. All be equipped with rotatable block 26 that supports on the face in opposite directions of a pair of slider 25, the rotatory mechanism of drive block 26 can place in slider 25, and block 26 is used for compressing tightly interim assembling body 11 along interim assembling body 11's axial. The opposite ends of the two abutting blocks 26 are provided with third arc-shaped grooves 27, and the inner walls of the third arc-shaped grooves 27 can be attached to the bottle bottom end cover 8 or the bottle mouth end cover 9.

Referring to fig. 4, a lifting mechanism 39 is further disposed in the welding cabinet 40, the lifting mechanism 39 is composed of a third cylinder 15, a second guide rail 28, a second slider 25 and a connecting rod 43, a piston rod of the third cylinder 15 faces downward vertically, the second slider 25 is fixed on the piston rod of the third cylinder 15, and the connecting rod 43 is horizontally fixed on the second slider 25. The connecting rod 43 is fixed with an upper plate 37, the bottom end of the upper plate 37 is hinged with a lower plate 38, and the upper plate 37 can be turned upwards. The upper plate 37 and the lower plate 38 form a light barrier 36, the light barrier 36 is located between the welding station 4 and the grabbing mechanism 7, and the light barrier 36 is used for shielding the arc light emitted during welding. When the telescopic cylinder 21 horizontally feeds the temporary assembly 11 into the welding station 4, the light barrier 36 is in a raised state; during welding, the light barrier 36 is lowered to block the arc light.

Referring to fig. 4, a channel 45 is formed in the wall of the welding cabinet 40, an inclined chute 44 is fixed in the channel 45, a higher part of the chute 44 is left in the welding cabinet 40, a lower part of the chute 44 extends above a conveyor belt outside the welding cabinet 40, a steel cylinder released at the welding station 4 can fall on the chute 44 and then roll onto the conveyor belt along the chute 44, and the conveyor belt conveys the steel cylinder to a designated position for collection.

The implementation method of the automatic steel cylinder welding machine provided by the embodiment of the application comprises the following steps:

when the positioning tool 6 is located at the first station 12, the discharge port of the automatic bottle feeder 1 falls down the bottle 10, the bottle 10 falls down into the positioning tool 6, and then the positioning tool 6 moves to the second station 13;

when the positioning tool 6 is located at the second station 13, the bottle bottom end cover 8 falls into the positioning tool 6 through the discharge hole of the bottle bottom end cover automatic feeder 2, the bottle mouth end cover 9 falls into the positioning tool 6 through the discharge hole of the bottle bottom end cover automatic feeder 3, then the positioning tool 6 positions the bottle bottom end cover 8 and the bottle mouth end cover 9 at two ends of the bottle body 10 to form a temporary assembly body 11, and then the positioning tool 6 moves to the third station 14;

when the positioning tool 6 is located at the third station 14, the grabbing mechanism 7 grabs the splicing seam of the temporary assembly body 11, the third station 14 loosens the temporary assembly body 11, the grabbing mechanism 7 conveys the temporary assembly body 11 to the welding station 4, then the clamping mechanism 23 clamps the temporary assembly body 11, then the grabbing mechanism 7 loosens the temporary assembly body 11 and resets, then welding is started, and the clamping mechanism 23 loosens the steel cylinder after welding is completed.

In the welding process, the positioning tool 6 moves to the first station 12 and the second station 13 to receive the bottle body 10, the bottle bottom end cover 8 and the bottle mouth end cover 9, then moves to the third station 14, and when the welding of the previous steel bottle is completed, the grabbing mechanism 7 immediately grabs the temporary assembly 11 of the third station 14 to perform the next welding.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a steel bottle automatic weld machine, includes body automatic feed ware (1), bottle end cover automatic feed ware (2), bottleneck end cover automatic feed ware (3), welding station (4), its characterized in that:

the bottle body assembly machine is characterized by further comprising a conveying mechanism (5), a positioning tool (6) and a grabbing mechanism (7), wherein the positioning tool (6) is used for positioning a bottle bottom end cover (8) and a bottle mouth end cover (9) at two ends of the bottle body (10) to form a temporary assembly body (11), and the grabbing mechanism (7) is used for grabbing the temporary assembly body (11) on the positioning tool (6) and conveying the temporary assembly body to a welding station (4) for welding;

the conveying mechanism (5) is used for conveying the positioning tool (6) to a first station (12) to receive the feeding of the automatic bottle body feeder (1), the conveying mechanism (5) is also used for conveying the positioning tool (6) to a second station (13) to receive the feeding of the automatic bottle bottom end cover feeder (2) and the automatic bottle mouth end cover feeder (3), and the conveying mechanism (5) is also used for conveying the positioning tool (6) to a third station (14) to enable the grabbing mechanism (7) to grab the temporary assembly body (11);

clamping mechanisms (23) are arranged on two sides of the welding station (4), and the clamping mechanisms (23) are used for clamping the temporary assembly bodies (11) along the axial direction of the temporary assembly bodies (11).

2. The automatic steel cylinder welding machine according to claim 1, characterized in that: the positioning tool (6) comprises a pair of clamping jaws (16) driven by a cylinder (15), and a first arc-shaped groove (17) and a second arc-shaped groove (18) are formed in each clamping jaw (16); when the positioning tool (6) is positioned at the first station (12), the first arc-shaped groove (17) is positioned right below the discharge hole of the automatic bottle body feeder (1), and the inner wall of the first arc-shaped groove (17) can be attached to the bottle body (10); when location frock (6) were located second station (13), second arc wall (18) just are to the tip of body (10), and the inner wall of second arc wall (18) can be laminated with bottle bottom end cover (8) or bottleneck end cover (9).

3. The automatic steel cylinder welding machine according to claim 1, characterized in that: snatch mechanism (7) including setting up motor (19) in conveying mechanism (5) top, rotor plate (20) is connected in motor (19) drive, is fixed with telescopic cylinder (21) on rotor plate (20), fixes two clamping jaw cylinders (22) on the piston rod of telescopic cylinder (21), and two clamping jaw cylinders (22) are used for pressing from both sides body (10) and the concatenation department of bottle end cover (8), the concatenation department of body (10) and bottleneck end cover (9) respectively.

4. The automatic steel cylinder welding machine according to claim 1, characterized in that: clamping mechanism (23) include actuating mechanism, guide rail (24), a pair of slider (25), actuating mechanism is used for driving a pair of slider (25) and removes along guide rail (24) length direction, all be equipped with rotatable piece (26) of supporting on the face in opposite directions of a pair of slider (25), support piece (26) and be used for compressing tightly temporarily assembling body (11) along the axial of temporarily assembling body (11), be equipped with third arc wall (27) on supporting piece (26), the inner wall of third arc wall (27) can be laminated with bottle bottom end cover (8) or bottleneck end cover (9).

5. The automatic steel cylinder welding machine according to claim 1, characterized in that: bottle body automatic feeder (1) is equipped with slope (30) including storage case (29), bottom in storage case (29), and storage case (29) outer wall connection has ejection of compact slide (31), and the lowest of slope (30) communicates with each other with ejection of compact slide (31), is equipped with two second cylinders (32) that are used for intercepting bottle body (10) on ejection of compact slide (31), only can hold one bottle body (10) between the piston rod of two second cylinders (32).

6. The automatic steel cylinder welding machine according to claim 1, characterized in that: bottle bottom end cover automatic feeder (2), bottleneck end cover automatic feeder (3) all include autoloading vibration dish and second ejection of compact slide (33), and second ejection of compact slide (33) are connected in the discharge gate of autoloading vibration dish, and the discharge gate of second ejection of compact slide (33) is located directly over second station (13).

7. The automatic steel cylinder welding machine according to claim 1, characterized in that: conveying mechanism (5) are equipped with on linear guide (34) and move seat (35) including linear guide (34), and location frock (6) are located and are moved seat (35) upper surface.

8. The automatic steel cylinder welding machine according to claim 1, characterized in that: and a liftable light barrier (36) is arranged between the welding station (4) and the grabbing mechanism (7), and the grabbing mechanism (7) passes through the light barrier (36) after the light barrier (36) rises.

9. The automatic steel cylinder welding machine according to claim 8, characterized in that: the light barrier (36) comprises an upper plate (37) and a lower plate (38) which are hinged, and the upper plate (37) is connected with a lifting mechanism (39).