Intelligent welding equipment for producing fire extinguisher steel cylinders

Abstract

The application relates to the technical field of intelligent welding equipment, in particular to intelligent welding equipment for fire extinguisher steel cylinder production, which comprises a main platform, a rotating platform, a workpiece positioning mechanism, a welding manipulator and a welding torch, the lower surface of the main platform is fixedly installed with supporting legs, the central position of the main platform is rotationally installed with a rotating shaft, the rotating shaft is driven by a first-stage servo motor on the lower side of the main platform, the rotating platform is fixedly connected with the upper side end of the rotating shaft, the workpiece positioning mechanism is arranged on the rotating platform and is used for assembling and positioning the steel cylinder to be welded; the welding equipment for steel cylinder production is composed of the main platform, the rotating platform, the workpiece positioning mechanism, the welding manipulator and the welding torch, a plurality of workpiece positioning mechanisms are arranged at equal intervals on the rotating platform, the workpiece loading and unloading time and the welding time are staggered, the waiting time of the welding torch during the workpiece loading and unloading process is reduced, and the overall machining efficiency of the equipment is effectively improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of intelligent welding equipment, and particularly relates to intelligent welding equipment for extinguisher steel cylinder production. BACKGROUND

[0002] An extinguisher is a portable extinguishing tool. Chemicals are placed in the extinguisher to extinguish a fire. The steel cylinder of the extinguisher is the most critical component of the extinguisher, and the steel cylinder of the extinguisher needs to be welded by welding equipment during actual production.

[0003] The Chinese patent file with the publication number CN112872559B discloses a head butt joint ring welding machine for steel cylinder production, which comprises a machine base, a head clamping and fixing device, a welding device and a double-station workbench. The head clamping and fixing device is installed at the upper end of the machine base and comprises a head part and a tail part. The two parts are arranged opposite to each other, and the head clamping and fixing position is arranged between the two parts. The head part comprises a head box, a hollow rotating shaft is arranged horizontally on the head box, an annular clamping seat is fixedly arranged at the right end of the hollow rotating shaft and used for clamping a lower head. A transmission mechanism is connected between the left end of the hollow rotating shaft and a driving motor. A push rod is arranged in the hollow rotating shaft. The left end of the push rod is connected with a first driving cylinder arranged outside the left end of the head box. The right end of the push rod is a left pressing end which is in contact with the bottom of the lower head. The tail part comprises a tail rod seat and a tail rod which is arranged on the tail rod seat and extends from the left side of the tail rod seat. The tail rod seat is slidably connected with the upper end of the machine base along the left-right direction through a linear guide pair. The tail rod seat is connected with a second driving cylinder. The tail rod is coaxially arranged with the push rod. The left end of the tail rod is a right pressing end which is in contact with the top of the upper head.

[0004] However, the above-mentioned scheme needs a long waiting time during the up-and-down process of the workpiece, thereby affecting the processing efficiency of the equipment. Therefore, the application provides the intelligent welding equipment for extinguisher steel cylinder production to solve the above-mentioned problems. SUMMARY

[0005] The application aims to provide the intelligent welding equipment for extinguisher steel cylinder production to solve the problems in the background.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: the intelligent welding equipment for extinguisher steel cylinder production comprises:

[0007] A main platform, a support leg is fixedly installed on the lower surface of the main platform, and a rotating shaft is rotatably installed at the center position of the main platform. The rotating shaft is driven by a first servo motor arranged on the lower side of the main platform.

[0008] A rotating platform, the rotating platform is fixedly connected with the upper side end of the rotating shaft.

[0009] A workpiece positioning mechanism is arranged on the rotating platform and is used for assembling and positioning the steel bottle to be welded;

[0010] A welding manipulator is fixedly installed on the ground at the side position of the main platform, and the base of the welding manipulator is fixed on the installation table.

[0011] A welding torch is fixedly installed on the end of the welding manipulator, a group of welding torch positioning seats are symmetrically installed on the welding torch positioning seats, and the interval value of the welding points on the steel bottle to be welded matches the interval value of the welding heads of the welding torch.

[0012] Preferably, the workpiece positioning mechanism comprises a mouth positioning structure, a body positioning structure and a bottom positioning structure, which are respectively used for positioning the mouth, body and bottom of the steel bottle, the body positioning structure is installed on the rotating platform through an installation rod, and the body positioning structure is an arc-shaped plate, the inner side wall of the body positioning structure matches the outer side wall of the body in terms of the curvature value.

[0013] Preferably, the mouth positioning structure comprises a primary seat body and a primary rotating piece, the primary seat body is fixed on the rotating platform, the primary rotating piece is rotatably installed in a primary rotating groove of the primary seat body, a rotating rod is fixedly installed on the primary rotating piece, the rotating rod is arranged through a through hole of the primary seat body, a driven gear is fixedly installed on the rotating rod, and the mouth of the steel bottle is placed in a mouth positioning groove on the primary rotating piece during actual assembly.

[0014] Preferably, the bottom positioning structure comprises a secondary seat body, a secondary rotating piece and a force receiving shaft, the secondary seat body is provided with a secondary rotating groove, and guide rod seats are integrally formed on the two sides of the secondary seat body, a primary mounting seat and a secondary mounting seat are fixedly installed on the rotating platform, the primary mounting seat and the secondary mounting seat are arranged in correspondence, a guide rod is fixedly installed between the primary mounting seat and the secondary mounting seat, the guide rod seat is movably installed on the guide rod, a return spring is sleeved on the guide rod, the two ends of the return spring are respectively abuttingly arranged with the guide rod seat and the secondary mounting seat, when the return spring is in a reset state, the guide rod seat is abuttingly arranged with the primary mounting seat, the secondary rotating piece is rotatably arranged in the secondary rotating groove, and a bottom positioning groove is formed in the secondary rotating piece, and the force receiving shaft is fixedly welded with the outer end face of the secondary seat body.

[0015] Preferably, the edge position of the main platform is fixedly provided with a first force receiving seat through a supporting column, the first force receiving seat is arranged at the same height as the force receiving shaft, and the first force receiving seat comprises a first force receiving arc and a second force receiving arc, the radius of the first force receiving arc is smaller than that of the second force receiving arc, and the first force receiving arc and the second force receiving arc are arranged at the same center as the rotating platform, the rotating platform is equally divided and marked with six points, which are respectively marked as points A, B, C, D, E and F, and the points C, D and E are located within the range of the first force receiving arc, and the points A, B and F are located within the range of the second force receiving arc.

[0016] Preferably, when the force receiving shaft abuts against the first force receiving arc, the bottle mouth and the bottle body of the steel cylinder are respectively embedded into the bottle mouth positioning groove and the bottle bottom positioning groove, when the force receiving shaft abuts against the second force receiving arc, the return spring is in a reset state, and at this time, the distance between the bottle mouth positioning structure and the bottle bottom positioning structure is greater than the length of the steel cylinder.

[0017] Preferably, a gantry support is arranged above the main platform, a motor support is fixedly arranged on the gantry support, a second servo motor is fixedly arranged on the motor support, a transmission gear is fixedly arranged on the output shaft of the second servo motor, and the transmission gear is arranged in engagement with the driven gear when the workpiece positioning mechanism moves to the point D.

[0018] Preferably, when the workpiece positioning mechanism moves to the point A, the bottle mouth, the bottle body and the bottle bottom of the steel cylinder are respectively positioned and placed on the bottle mouth positioning structure, the bottle body positioning structure and the bottle bottom positioning structure by the worker, the bottle mouth, the bottle body and the bottle bottom are matched together under the running of the bottle bottom positioning structure during the movement of the workpiece positioning mechanism from the point B to the point C, the welding torch on the welding manipulator welds the connecting position of the bottle mouth, the bottle body and the bottle bottom when the workpiece positioning mechanism moves to the point D, and the worker discharges the welded steel cylinder when the workpiece positioning mechanism moves to the point F.

[0019] Preferably, the rotating platform is provided with a mounting rod movable hole, the mounting rod is movably installed in the mounting rod movable hole, the mounting rods are arranged in pairs, the upper end of the mounting rod is welded to the bottle body positioning structure, and a supporting spring is sleeved on the mounting rod, the upper and lower ends of the supporting spring are respectively arranged against the rotating platform and the second stress seat, the lower end of the mounting rod is fixedly provided with the second stress seat through a positioning bolt, the upper end surface of the second stress seat is fixedly welded with a limiting rod, the main platform is fixedly provided with a stress ring, the stress ring is arranged with the rotating platform as the same center, the upper surface of the stress ring is provided with an emptying groove, the center line of the emptying groove coincides with the D point, the second stress seat is arranged corresponding to the stress ring, when the upper surfaces of the second stress seat and the stress ring abut against each other, the interfaces of the bottle mouth, the bottle body and the bottle bottom on the bottle mouth positioning structure, the bottle body positioning structure and the bottle bottom positioning structure are arranged in alignment, when the second stress seat moves to the position of the emptying groove, the supporting spring is in a reset state, and at this time, the bottle body positioning structure is separated from the bottle body on the steel cylinder.

[0020] Preferably, the lower surface of the rotating platform is provided with a guide pulley, the guide pulleys are arranged at equal intervals around the rotating platform, and the wheel bodies of the guide pulleys are arranged against the upper surface of the main platform during actual installation.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] 1. The intelligent welding equipment for fire extinguisher steel cylinder production is composed of a main platform, a rotating platform, a workpiece positioning mechanism, a welding manipulator and a welding gun, a plurality of workpiece positioning mechanisms are arranged at equal intervals on the rotating platform, the workpiece loading and unloading time is staggered with the welding time, the waiting time of the welding gun during loading and unloading is reduced, and the overall processing efficiency of the equipment is effectively improved.

[0023] 2. The workpiece positioning mechanism is composed of a bottle mouth positioning structure, a bottle body positioning structure and a bottle bottom positioning structure, the bottle mouth positioning structure is composed of a primary seat body and a primary rotating part, the bottle bottom positioning structure is composed of a secondary seat body, a secondary rotating part and a stress shaft, and a stress seat is composed of a primary stress arc and a secondary stress arc, the primary stress arc and the secondary stress arc generate a force on the stress shaft, the bottle mouth positioning structure and the bottle bottom positioning structure are away from and close to each other, and the bottle mouth, the bottle body and the bottle bottom of the steel cylinder can be automatically matched together. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The structure of the present application is shown in the figure;

[0025] Figure 2 The Figure 1Structure enlarged schematic view at G;

[0026] Figure 3 For Figure 1 Structure enlarged schematic view at H;

[0027] Figure 4 For the semi-partial view of the present application;

[0028] Figure 5 For Figure 4 Structure enlarged schematic view at J;

[0029] Figure 6 For Figure 4 Structure enlarged schematic view at K;

[0030] Figure 7 For Figure 6 Structure enlarged schematic view at L;

[0031] Figure 8 For Figure 6 Structure enlarged schematic view at M;

[0032] Figure 9 For the guide rod structure schematic view of the present application;

[0033] Figure 10 For the force bearing seat structure schematic view of the present application;

[0034] Figure 11 For the force bearing ring structure schematic view of the present application;

[0035] Figure 12 For the workpiece positioning mechanism schematic view of the present application;

[0036] Figure 13 For Figure 12 Structure enlarged schematic view at N.

[0037] In the figure: main platform 1, rotating platform 2, workpiece positioning mechanism 3, welding manipulator 4, welding torch 5, support leg 6, rotating shaft 7, mounting table 8, welding torch positioning seat 9, steel bottle 10, bottle mouth positioning structure 11, bottle body positioning structure 12, bottle bottom positioning structure 13, primary seat body 14, primary rotating part 15, rotating rod 16, driven gear 17, motor support 18, secondary servo motor 19, transmission gear 20, secondary seat body 21, secondary rotating part 22, force bearing shaft 23, guide rod seat 24, primary mounting seat 25, secondary mounting seat 26, guide rod 27, return spring 28, support column 31, first force bearing seat 32, primary force bearing arc 33, secondary force bearing arc 34, force bearing ring 35, emptying groove 36, mounting rod 37, support spring 38, second force bearing seat 39, limiting rod 40, guide pulley 41. DETAILED DESCRIPTION

[0038] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0039] Please refer to Figures 1-13 The present application provides the following three preferred embodiments:

[0040] Embodiment one: an intelligent welding device for fire extinguisher cylinder production, comprising a main platform 1, a rotating platform 2, a workpiece positioning mechanism 3, a welding manipulator 4 and a welding torch 5, a support leg 6 is fixedly installed on the lower surface of the main platform 1, and a rotating shaft 7 is rotatably installed at the center position of the main platform 1, the rotating shaft 7 is driven by a first servo motor on the lower side of the main platform 1, the rotating platform 2 is fixedly connected with the upper side end of the rotating shaft 7, the workpiece positioning mechanism 3 is arranged on the rotating platform 2, and the workpiece positioning mechanism 3 is used for assembling and positioning the steel cylinder 10 to be welded, an installation table 8 is fixedly installed on the ground at the side position of the main platform 1, the base of the welding manipulator 4 is fixed on the installation table 8, a welding torch positioning seat 9 is fixedly installed at the end of the welding manipulator 4, and a group of welding torches 5 are symmetrically installed on the welding torch positioning seat 9, and the welding point spacing value on the steel cylinder 10 to be welded matches the welding head spacing value of the welding torch 5. By setting the intelligent welding device for fire extinguisher cylinder production composed of the main platform 1, the rotating platform 2, the workpiece positioning mechanism 3, the welding manipulator 4 and the welding torch 5, a plurality of workpiece positioning mechanisms 3 are arranged at equal intervals on the rotating platform 2, so that the workpiece unloading time and the welding time are staggered, thereby reducing the waiting time of the welding torch 5 during unloading, and effectively improving the overall processing efficiency of the equipment.

[0041] Embodiment two: on the basis of embodiment one, the workpiece positioning mechanism 3 comprises a mouth positioning structure 11, a body positioning structure 12 and a bottom positioning structure 13, the mouth positioning structure 11, the body positioning structure 12 and the bottom positioning structure 13 are respectively used for positioning the mouth, the body and the bottom of the steel cylinder 10, the body positioning structure 12 is installed on the rotating platform 2 through an installation rod 37, and the body positioning structure 12 is an arc plate, the inner side wall arc value of the body positioning structure 12 matches the outer side wall arc value of the body.

[0042] The bottle mouth positioning structure 11 comprises a primary seat body 14 and a primary rotating piece 15, the primary seat body 14 is fixed on the rotating platform 2, the primary rotating piece 15 is rotatably installed in a primary rotating groove of the primary seat body 14, a rotating rod 16 is fixedly installed on the primary rotating piece 15, the rotating rod 16 passes through a through hole of the primary seat body 14 and is arranged, a driven gear 17 is fixedly installed on the rotating rod 16, and the bottle mouth of the steel bottle 10 is placed in a bottle mouth positioning groove on the primary rotating piece 15 during actual assembly.

[0043] The bottle bottom positioning structure 13 comprises a secondary seat body 21, a secondary rotating piece 22 and a force receiving shaft 23, the secondary seat body 21 is provided with a secondary rotating groove, and both sides of the secondary seat body 21 are integrally provided with a guide rod seat 24, a primary mounting seat 25 and a secondary mounting seat 26 are fixedly installed on the rotating platform 2, the primary mounting seat 25 and the secondary mounting seat 26 are correspondingly arranged, the guide rod 27 is fixedly installed between the primary mounting seat 25 and the secondary mounting seat 26, the guide rod seat 24 is movably installed on the guide rod 27, the guide rod 27 is sleeved with a return spring 28, both ends of the return spring 28 are respectively abutted with the guide rod seat 24 and the secondary mounting seat 26, when the return spring 28 is in a reset state, the guide rod seat 24 is abutted with the primary mounting seat 25, the secondary rotating piece 22 is rotatably arranged in the secondary rotating groove, the secondary rotating piece 22 is provided with a bottle bottom positioning groove, and the force receiving shaft 23 is fixedly welded with the outer end face of the secondary seat body 21.

[0044] The edge position of the main platform 1 is fixedly installed with a first force receiving seat 32 through a supporting column 31, the first force receiving seat 32 is arranged at the same height as the force receiving shaft 23, the first force receiving seat 32 comprises a primary force receiving arc 33 and a secondary force receiving arc 34, the radius value of the primary force receiving arc 33 is smaller than that of the secondary force receiving arc 34, the primary force receiving arc 33 and the secondary force receiving arc 34 are arranged at the same center as the rotating platform 2, the rotating platform 2 is equally divided and marked with six points, which are respectively marked as A, B, C, D, E and F, the C, D and E points are located within the range of the primary force receiving arc 33, and the A, B and F points are located within the range of the secondary force receiving arc 34.

[0045] When the force receiving shaft 23 abuts against the primary force receiving arc 33, the bottle mouth and the bottle body of the steel bottle 10 are respectively embedded into the bottle mouth positioning groove and the bottle bottom positioning groove, when the force receiving shaft 23 abuts against the secondary force receiving arc 34, the return spring 28 is in a reset state, and at this time, the spacing value between the bottle mouth positioning structure 11 and the bottle bottom positioning structure 13 is greater than the length value of the steel bottle 10.

[0046] The main platform 1 is provided with a gantry support above it, the gantry support is fixedly installed with a motor support 18, the motor support 18 is fixedly installed with a secondary servo motor 19, the output shaft of the secondary servo motor 19 is fixedly installed with a transmission gear 20, when the workpiece positioning mechanism 3 moves to the D point, the transmission gear 20 is meshed with the driven gear 17, so that the six workpiece positioning mechanisms 3 can be automatically started when moving to the specified position through a single driving structure, thereby reducing the use of driving structures on the equipment.

[0047] When the workpiece positioning mechanism 3 moves to the A point, the worker positions the bottle mouth, bottle body and bottle bottom of the steel bottle 10 on the bottle mouth positioning structure 11, bottle body positioning structure 12 and bottle bottom positioning structure 13 respectively, during the movement of the workpiece positioning mechanism 3 from the B point to the C point, the bottle mouth, bottle body and bottle bottom are matched together under the operation of the bottle bottom positioning structure 13, when the workpiece positioning mechanism 3 moves to the D point, the welding gun 5 on the welding manipulator 4 welds the connection position of the bottle mouth, bottle body and bottle bottom, when the workpiece positioning mechanism 3 moves to the F point, the worker discharges the welded steel bottle 10, by setting the workpiece positioning mechanism 3 to be composed of the bottle mouth positioning structure 11, bottle body positioning structure 12 and bottle bottom positioning structure 13, setting the bottle mouth positioning structure 11 to be composed of the primary seat 14 and primary rotating part 15, setting the bottle bottom positioning structure 13 to be composed of the secondary seat 21, secondary rotating part 22 and force receiving shaft 23, and setting the first force receiving seat 32 to be composed of the primary force receiving arc 33 and secondary force receiving arc 34, the force receiving shaft 23 is acted on by the primary force receiving arc 33 and secondary force receiving arc 34, thereby realizing the away and close of the bottle mouth positioning structure 11 and bottle bottom positioning structure 13, so that the bottle mouth, bottle body and bottle bottom of the steel bottle 10 can be automatically matched together.

[0048] The embodiment three is based on the embodiment two, the installation rod movable hole is opened on the rotating platform 2, the installation rod 37 is movably installed in the installation rod movable hole, the installation rod 37 is arranged in pairs, the upper side end of the installation rod 37 is welded with the bottle body positioning structure 12, and the support spring 38 is sleeved on the installation rod 37, the upper and lower ends of the support spring 38 are respectively arranged with the rotating platform 2 and the second stress seat 39, the lower side end of the installation rod 37 is fixedly installed with the second stress seat 39 through the positioning bolt, the upper end surface of the second stress seat 39 is fixedly welded with the limiting rod 40, the stress ring 35 is fixedly installed on the main platform 1, the stress ring 35 is arranged with the rotating platform 2 as the same center, and the upper surface of the stress ring 35 is provided with the empty slot 36, the center line of the empty slot 36 coincides with the D point, the second stress seat 39 is arranged corresponding to the stress ring 35, when the upper surface of the second stress seat 39 abuts against the stress ring 35, the interfaces of the bottle mouth, the bottle body and the bottle bottom on the bottle mouth positioning structure 11, the bottle body positioning structure 12 and the bottle bottom positioning structure 13 are arranged in alignment, when the second stress seat 39 moves to the position of the empty slot 36, the support spring 38 is in the reset state, at this time, the bottle body positioning structure 12 is separated from the bottle body on the steel cylinder 10, so that the workpiece positioning mechanism 3 can separate the bottle body positioning structure 12 from the bottle body on the steel cylinder 10 in the process of welding, so as to avoid that the steel cylinder 10 is damaged by the friction force with the bottle body positioning structure 12 in the rotating process.

[0049] The lower surface of the rotating platform 2 is provided with the guide pulley 41, the guide pulley 41 is arranged at equal intervals around the rotating platform 2, and the wheel body of the guide pulley 41 is arranged in close contact with the upper surface of the main platform 1 during actual installation, so as to improve the stability of the rotating platform 2 in the rotating process.

[0050] Although the above describes the specific embodiments of the present application in order to enable those skilled in the art to understand the present application, the present application is not limited to the scope of the specific embodiments, and for those skilled in the art, all application creations utilizing the concept of the present application are within the scope of the present application.

Claims

1. An intelligent welding device for the production of fire extinguisher cylinders, characterized in that: Include: The lower surface of the main platform (1) is fixedly installed with supporting legs (6), and the central position of the main platform (1) is rotatably installed with a rotating shaft (7), which is driven by a primary servo motor on the lower side of the main platform (1); The rotating platform (2) is fixedly connected with the upper side end of the rotating shaft (7); The workpiece positioning mechanism (3) is arranged on the rotating platform (2), and the workpiece positioning mechanism (3) is used for assembling and positioning the steel bottle (10) to be welded; The welding manipulator (4) is fixedly installed on the ground at the side edge position of the main platform (1), and the base of the welding manipulator (4) is fixed on the mounting table (8); The welding torch (5) is fixedly installed at the end of the welding manipulator (4), and a set of welding torch positioning seats (9) are symmetrically installed on the welding torch (5), and the welding point spacing value on the steel bottle (10) to be welded matches the welding head spacing value of the welding torch (5); The workpiece positioning mechanism (3) includes a mouth positioning structure (11), a body positioning structure (12) and a bottom positioning structure (13), which are respectively used for positioning the mouth, body and bottom of the steel bottle (10), the body positioning structure (12) is installed on the rotating platform (2) through the mounting rod (37), and the body positioning structure (12) is an arc plate, the inner side wall arc value of the body positioning structure (12) matches the outer side wall arc value of the bottle body; The mouth positioning structure (11) includes a primary seat body (14) and a primary rotating part (15), the primary seat body (14) is fixed on the rotating platform (2), the primary rotating part (15) is rotatably installed in the primary rotating groove of the primary seat body (14), the primary rotating part (15) is fixedly installed with a rotating rod (16), the rotating rod (16) is arranged through the through hole of the primary seat body (14), and the primary rotating part (15) is fixedly installed with a driven gear (17), the mouth of the steel bottle (10) is placed in the mouth positioning groove on the primary rotating part (15) during actual assembly; The bottle bottom positioning structure (13) comprises a secondary seat body (21), a secondary rotating part (22) and a force receiving shaft (23), the secondary seat body (21) is provided with a secondary rotating groove, and both sides of the secondary seat body (21) are integrally provided with a guide rod seat (24); the rotating platform (2) is fixedly provided with a primary mounting seat (25) and a secondary mounting seat (26), the primary mounting seat (25) and the secondary mounting seat (26) are correspondingly arranged, and the primary mounting seat (25) and the secondary mounting seat (26) are fixedly provided with a guide rod (27); the guide rod seat (24) is movably arranged on the guide rod (27), the guide rod (27) is provided with a reset spring (28), and both ends of the reset spring (28) are abuttingly arranged on the guide rod seat (24) and the secondary mounting seat (26); when the reset spring (28) is in a reset state, the guide rod seat (24) is abuttingly arranged on the primary mounting seat (25); the secondary rotating part (22) is rotatably arranged in the secondary rotating groove, and the secondary rotating part (22) is provided with a bottle bottom positioning groove; and the force receiving shaft (23) is fixedly welded to the outer end surface of the secondary seat body (21). The edge of the main platform (1) is fixedly provided with a first force receiving seat (32) through a supporting column (31), the first force receiving seat (32) is arranged at the same height as the force receiving shaft (23), and the first force receiving seat (32) comprises a primary force receiving arc (33) and a secondary force receiving arc (34); the radius of the primary force receiving arc (33) is smaller than that of the secondary force receiving arc (34), and the primary force receiving arc (33) and the secondary force receiving arc (34) are arranged at the same center as the rotating platform (2); the rotating platform (2) is divided into six points, which are marked as A, B, C, D, E and F respectively; the C, D and E points are located within the range of the primary force receiving arc (33), and the A, B and F points are located within the range of the secondary force receiving arc (34).

2. The intelligent welding device for producing fire extinguisher cylinders according to claim 1, characterized in that: When the force receiving shaft (23) abuts against the primary force receiving arc (33), the bottle mouth and the bottle body of the steel cylinder (10) are respectively embedded into the bottle mouth positioning groove and the bottle bottom positioning groove; when the force receiving shaft (23) abuts against the secondary force receiving arc (34), the reset spring (28) is in a reset state, and the distance between the bottle mouth positioning structure (11) and the bottle bottom positioning structure (13) is greater than the length of the steel cylinder (10).

3. The intelligent welding device for producing fire extinguisher cylinders according to claim 2, characterized in that: A gantry support is arranged above the main platform (1), the gantry support is fixedly provided with a motor support (18), the motor support (18) is fixedly provided with a secondary servo motor (19), the output shaft of the secondary servo motor (19) is fixedly provided with a transmission gear (20), and when the workpiece positioning mechanism (3) moves to the D point, the transmission gear (20) is meshingly arranged with the driven gear (17).

4. The intelligent welding device for producing fire extinguisher cylinders according to claim 3, characterized in that: When the workpiece positioning mechanism (3) moves to point A, the worker positions the bottle mouth, bottle body and bottle bottom of the steel bottle (10) on the bottle mouth positioning structure (11), bottle body positioning structure (12) and bottle bottom positioning structure (13) respectively, in the process of moving from point B to point C of the workpiece positioning mechanism (3), the bottle mouth, bottle body and bottle bottom are matched together under the operation of the bottle bottom positioning structure (13), when the workpiece positioning mechanism (3) moves to point D, the welding torch (5) on the welding manipulator (4) welds the connecting position of the bottle mouth, bottle body and bottle bottom, when the workpiece positioning mechanism (3) moves to point F, the worker discharges the welded steel bottle (10).

5. The intelligent welding apparatus for producing fire extinguisher cylinders as claimed in claim 4, wherein: The rotating platform (2) is provided with a mounting rod movable hole, the mounting rod (37) is movably installed in the mounting rod movable hole, the mounting rod (37) is arranged in pairs, the upper end of the mounting rod (37) is welded and connected with the bottle body positioning structure (12), a supporting spring (38) is sleeved on the mounting rod (37), the upper and lower ends of the supporting spring (38) are respectively arranged in abutment with the rotating platform (2) and the second stress seat (39), the lower end of the mounting rod (37) is fixedly provided with the second stress seat (39) through a positioning bolt, the upper end surface of the second stress seat (39) is fixedly welded with a limiting rod (40), the main platform (1) is fixedly provided with a stress ring (35), the stress ring (35) is arranged with the same center as the rotating platform (2), an avoidance groove (36) is formed in the upper surface of the stress ring (35), the center line of the avoidance groove (36) coincides with the D point, the second stress seat (39) is arranged correspondingly with the stress ring (35), when the upper surfaces of the second stress seat (39) and the stress ring (35) abut against each other, the interface positions of the bottle mouth, bottle body and bottle bottom on the bottle mouth positioning structure (11), bottle body positioning structure (12) and bottle bottom positioning structure (13) are arranged in alignment, when the second stress seat (39) moves to the position of the avoidance groove (36), the supporting spring (38) is in a reset state, and at this time, the bottle body positioning structure (12) is separated from the bottle body on the steel bottle (10).

6. The intelligent welding apparatus for producing fire extinguisher cylinders as claimed in claim 5, wherein: The lower surface of the rotating platform (2) is provided with a guide pulley (41), the guide pulleys (41) are arranged at equal intervals around the rotating platform (2), and when the rotating platform (2) is actually installed, the wheel bodies of the guide pulleys (41) are arranged in abutment with the upper surface of the main platform (1).

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