SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model aims to provide a full-automatic special welding machine for upright rods of engineering scaffolds, aiming at solving the problems in the background art.
(II) technical scheme
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an engineering scaffold pole setting full-automatic special welding machine, includes the pole setting full-automatic special welding machine main part, and the pole setting full-automatic special welding machine main part includes: the automatic welding device comprises a steel pipe distributing and feeding mechanism, a steel pipe penetrating mechanism, a disc feeding mechanism, a disc overturning and positioning mechanism, a sleeve feeding mechanism, a sleeve clamping and positioning rotating mechanism, an automatic welding mechanism, an automatic gun cleaning mechanism, an automatic blanking mechanism, a finished upright rod stacking robot and an automatic upright rod product shape changing mechanism; the automatic welding mechanism and the automatic gun cleaning mechanism are connected in a linkage manner through the disc overturning and positioning mechanism, the automatic blanking mechanism is connected below the disc overturning and positioning mechanism, and the vertical rod finished product stacking robot is connected to the disc feeding mechanism; the steel pipe divides material feed mechanism includes: the welded frame and the material distributing jacking cylinder; the welded frame and the material distributing jacking cylinder are connected to the sleeve feeding mechanism; the steel pipe is worn material mechanism includes: the steel pipe clamping and aligning mechanism and the steel pipe penetrating and pushing mechanism; the steel pipe clamping and aligning mechanism and the steel pipe penetrating and pushing mechanism are connected to the sleeve feeding mechanism, and the steel pipe clamping and aligning mechanism is in linkage connection with the steel pipe penetrating and pushing mechanism; the disc feed mechanism includes: the device comprises a double-layer lifting conveying roller line, a disc tray, a conveying robot, a disc clamping jaw, a disc caching seat and a disc conveying mechanism; the double-layer lifting conveying roller line is connected to the disc feeding mechanism, the disc tray is placed on the double-layer lifting conveying roller line, the transfer robot and the disc clamping jaw are connected to one end of the disc feeding mechanism through a connecting piece, the disc cache seat is connected with the disc overturning and positioning mechanism, and the disc transfer mechanism is connected to the disc cache seat; the disc overturning and positioning mechanism comprises: the disc positioning platform and the disc overturning mechanism are arranged on the disc positioning platform; the disc positioning platform and the disc turnover mechanism are both connected to the sleeve feeding mechanism; the sleeve feed mechanism includes: the device comprises a sleeve sorting and positioning mechanism, a horizontal multi-joint manipulator carrying mechanism and a sleeve feeding mechanism; the horizontal multi-joint manipulator carrying mechanism is arranged below the carrying robot and the disc clamping jaw, the sleeve sorting and positioning mechanism is in linkage connection with the horizontal multi-joint manipulator carrying mechanism, and the sleeve feeding mechanism is connected below the sleeve clamping and positioning rotating mechanism; the sleeve clamping and positioning rotating mechanism comprises: the three-grabbing clamping cylinder, the rotary servo mechanism and the cylinder propelling mechanism; the cylinder propelling mechanism is connected below the rotary servo mechanism, and the rotary servo mechanism is connected with the three-grabbing clamping cylinder through a rotating shaft rod; the automatic welding mechanism includes: the water-cooled welding gun assembly, the welding gun lifting mechanism and the welding gun rotating cylinder; the welding gun lifting mechanism is connected above the water-cooling welding gun assembly; the automatic clear rifle mechanism includes: the device comprises a reamer thread cutting oil injection gun cleaning mechanism and a three-axis servo transplanting module; the reamer thread cutting, oil spraying and gun cleaning mechanism and the three-axis servo transplanting module are movably installed through guide rails; automatic blanking mechanism includes: the blanking slideway, the material receiving slideway and the material distributing baffle stop cylinder; the blanking slide way, the material receiving slide way and the material distributing baffle stop cylinder are all arranged on the automatic blanking mechanism; pole setting finished product is put things in good order the robot and is included: the carrying robot, a finished product clamping jaw and a stacking material frame; the carrying robot and the finished product clamping jaw are hinged with the carrying robot and the disc clamping jaw, and the stacking material frame is connected to one side of the double-layer lifting conveying roller line; automatic remodeling mechanism of pole setting product includes: a length model changing mechanism and a diameter model changing mechanism.
As a preferred technical solution of the present invention, the steel pipe clamping and aligning mechanism includes: the device comprises a first pneumatic tensioning inner support clamping jaw, a servo rotating mechanism, a first servo moving sliding table and a detection photoelectric sensor; the first pneumatic tensioning inner supporting clamping jaw is connected with the servo rotating mechanism through a connecting plate, and the detection photoelectric sensor is connected to one end of the first pneumatic tensioning inner supporting clamping jaw; the steel pipe penetrating and pushing mechanism comprises a second servo moving sliding table and a lifting tip.
As a preferred aspect of the present invention, the carousel conveying mechanism includes: the device comprises a disc centering clamping jaw, an elastic detection sensor, a first lifting cylinder and a portal frame pneumatic transverse moving mechanism; the disc centering clamping jaw is connected with the elastic detection sensor in a linkage mode, and the elastic detection sensor is connected with the first lifting cylinder.
As a preferred technical solution of the present invention, the sleeve feeding mechanism includes: the device comprises a V-shaped positioning tool, a second lifting cylinder, a rodless transverse moving cylinder and a pressing cylinder; the second lifting cylinder is connected below the V-shaped positioning tool, the pressing cylinder is connected to the pressing cylinder, and the rodless transverse moving cylinder is connected to the pressing cylinder; the rotary servo mechanism and the cylinder propulsion mechanism comprise: the servo and speed reducer combination is connected with the three-grabbing clamping cylinder through the coupler.
As a preferred technical solution of the present invention, the welding gun lifting mechanism and the welding gun rotating cylinder each include: the welding gun mounting bracket, the welding gun rotating cylinder and the welding gun lifting cylinder are arranged on the welding gun mounting bracket; the welding gun mounting bracket is connected with the welding gun lifting cylinder in a linkage manner through the welding gun rotating cylinder.
As a preferable aspect of the present invention, the length changing mechanism includes: the device comprises a steel pipe feeding length model changing mechanism, a steel pipe penetrating and pushing length model changing mechanism and a tailstock thimble length model changing mechanism; the diameter size remodeling mechanism comprises a steel pipe feeding diameter size remodeling mechanism, a welding gun lifting diameter size remodeling mechanism and a sleeve feeding diameter size remodeling mechanism.
As a preferred technical scheme of the utility model, the steel pipe feeding length remodeling mechanism comprises: the second servo moving sliding table and the first steel pipe lifting mechanism; the steel pipe penetration pushing length model changing mechanism comprises; the first servo moving sliding table, the second steel pipe lifting mechanism and the first pneumatic tensioning inner support clamping jaw are arranged on the first servo moving sliding table; tailstock thimble length remodel mechanism includes: rotatory tailstock mechanism, tailstock telescopic cylinder and tailstock remove servo slip table.
As a preferred technical scheme of the utility model, the steel pipe feeding diameter size remodeling comprises: the device comprises a first steel pipe lifting mechanism, a second steel pipe lifting mechanism, a steel pipe lifting and inclination cutting cylinder and an inclination cutting block; welder lift diameter size remodeling mechanism includes: the welding gun lifting air cylinder, the welding gun lifting lower limit switching air cylinder and the lower limit block are arranged on the welding gun lifting mechanism; the sleeve pay-off diameter size remodeling mechanism includes: v type location frock and sleeve pay-off diameter size remodeling mechanism.
(III) advantageous effects
Compared with the prior art, the utility model provides a full-automatic special welding machine for the vertical rod of the engineering scaffold, which has the following beneficial effects:
this engineering scaffold pole setting full-automatic welding special plane carries out disc and telescopic material loading through adopting the robot is automatic, adopts steel pipe automatic feeding and alignment mechanism, realizes the automatic feeding and the location of all spare parts. And the automatic assembly and welding mechanism is adopted to realize full-automatic assembly and full-automatic welding. And an automatic gun cleaning mechanism is adopted to realize automatic gun cleaning without stopping. Automatically downloading finished products and stacking by adopting a robot; thereby replacing the original manual labor and greatly improving the production efficiency.
Drawings
FIG. 1 is an isometric overall view of one embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an assembly welding station according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an automatic loading and unloading mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of an automatic steel pipe feeding mechanism according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a disk positioning and turning mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a finished product blanking mechanism according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a movement mechanism for an integral welding gun according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of an automatic gun cleaning mechanism according to an embodiment of the present invention;
FIG. 9 is a schematic structural view of a steel pipe clamping and aligning mechanism according to an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a single set of torch movement mechanisms in accordance with an embodiment of the present invention;
FIG. 11 is a schematic structural diagram of a tailstock mechanism according to an embodiment of the present invention;
FIG. 12 is a schematic structural view of a sleeve feeding mechanism according to an embodiment of the present invention;
FIG. 13 is a schematic structural view of a rotary clamping mechanism for a sleeve according to an embodiment of the present invention;
FIG. 14 is a schematic structural view of an integrated carousel handling mechanism according to an embodiment of the present invention;
FIG. 15 is a schematic diagram of a single stack carousel handling mechanism according to one embodiment of the present invention;
FIG. 16 is a schematic structural view of a steel tube lifting and diameter changing mechanism according to an embodiment of the present invention;
fig. 17 is a schematic structural diagram of a servo transplanting and material penetrating mechanism according to an embodiment of the utility model.
In the figure: 1. the steel pipe distributing and feeding mechanism; 2. a steel pipe penetrating mechanism; 3. a disc feeding mechanism; 4. a disc overturning and positioning mechanism; 5. a sleeve feeding mechanism; 6. the sleeve clamping and positioning rotating mechanism; 7. an automatic welding mechanism; 8. an automatic gun cleaning mechanism; 9. an automatic blanking mechanism; 10. stacking the finished vertical rod products by a robot; 11. a welded frame; 12. a material distributing jacking cylinder; 13. a steel pipe clamping and aligning mechanism; 14. a steel pipe penetrating and pushing mechanism; 15. a double-layer lifting conveying roller line; 16. a disc tray; 17. a transfer robot and a disc gripper; 18. a disc buffer seat; 19. a disc handling mechanism; 20. a disc positioning platform; 21. a disc turnover mechanism; 22. a sleeve sorting and positioning mechanism; 23. a horizontal multi-joint manipulator carrying mechanism; 24. a sleeve feeding mechanism; 25. a third grabbing and clamping cylinder; 26. a rotary servo mechanism; 27. a cylinder propulsion mechanism; 28. a water-cooled welding gun assembly; 29. a welding gun lifting mechanism; 30. a welding gun rotating cylinder; 31. a reamer thread cutting, oil spraying and gun cleaning mechanism; 32. a three-axis servo transplanting module; 33. a blanking slideway; 34. a material receiving slideway; 35. a material distributing gear stopping cylinder; 36. a transfer robot and a finished product gripper; 37. stacking a material frame; 38. a first pneumatically tensioned inner support jaw; 39. a servo rotating mechanism; 40. a first servo moving slide table; 41. detecting a photoelectric sensor; 42. a second servo moving slide table; 43. lifting the centre; 44. a disc centering jaw; 45. an elasticity detection sensor; 46. a first lifting cylinder; 47. a portal frame pneumatic traversing mechanism; 48. A V-shaped positioning tool; 49. a second lifting cylinder; 50. a rodless traverse cylinder; 51. a pressing cylinder; 52. combining a servo and a speed reducer; 53. passing through a coupler; 54. a welding gun mounting bracket; 55. a cylinder for welding gun lifting; 56. A steel pipe feeding length model changing mechanism; 57. the steel pipe is penetrated and pushed into a length model changing mechanism; 58. a tailstock thimble length model changing mechanism; 59. the steel pipe is charged and the diameter is changed; 60. the welding gun lifting diameter size changing mechanism; 61. the sleeve feeding diameter size changing mechanism; 62. a first steel pipe lifting mechanism; 63. a second steel pipe lifting mechanism; 64. a rotating tailstock mechanism; 65. a tailstock telescopic cylinder; 66. the tailstock moves the servo sliding table; 67. a steel pipe lifting and inclination cutting cylinder; 68. obliquely cutting into blocks; 69. a welding gun is lifted and lowered to limit and switch the cylinder; 70. a lower limit block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-17, the present invention provides the following technical solutions: the utility model provides an engineering scaffold pole setting full-automatic special welding machine, includes the pole setting full-automatic special welding machine main part, and the pole setting full-automatic special welding machine main part includes: the automatic pipe-cutting and pipe-cutting device comprises a steel pipe distributing and feeding mechanism 1, a steel pipe penetrating mechanism 2, a disc feeding mechanism 3, a disc overturning and positioning mechanism 4, a sleeve feeding mechanism 5, a sleeve clamping and positioning rotating mechanism 6, an automatic welding mechanism 7, an automatic gun cleaning mechanism 8, an automatic blanking mechanism 9, a vertical rod finished product stacking robot 10 and a vertical rod product automatic model changing mechanism; the steel pipe penetrating mechanism 2 is in transmission connection with the steel pipe distributing and feeding mechanism 1, the disc feeding mechanism 3 is connected to the side edges of the steel pipe distributing and feeding mechanism 1 and the steel pipe penetrating mechanism 2, the disc overturning and positioning mechanism 4 and the sleeve clamping and positioning rotating mechanism 6 are connected below the automatic welding mechanism 7 and are in mutual linkage, the sleeve feeding mechanism 5 is installed on an installation frame at the end part of the steel pipe distributing and feeding mechanism 1, the automatic welding mechanism 7 and the automatic gun cleaning mechanism 8 are in linkage connection through the disc overturning and positioning mechanism 4, the automatic blanking mechanism 9 is connected below the disc overturning and positioning mechanism 4, and the vertical rod finished product stacking robot 10 is connected to the disc feeding mechanism 3; the steel pipe divides material feed mechanism 1 to include: a welded frame 11 and a distributing jacking cylinder 12; the welded frame 11 and the material distributing jacking cylinder 12 are both connected to the sleeve feeding mechanism 5; the steel pipe material penetrating mechanism 2 comprises: a steel pipe clamping and aligning mechanism 13 and a steel pipe penetrating and pushing mechanism 14; the steel pipe clamping and aligning mechanism 13 and the steel pipe penetrating and pushing mechanism 14 are connected to the sleeve feeding mechanism 5, and the steel pipe clamping and aligning mechanism 13 is in linkage connection with the steel pipe penetrating and pushing mechanism 14; the disc feed mechanism 3 includes: a double-layer lifting conveying roller line 15, a disc tray 16, a conveying robot, a disc clamping jaw 17, a disc buffer storage seat 18 and a disc conveying mechanism 19; a double-layer lifting conveying roller line 15 is connected to the disc feeding mechanism 3, a disc tray 16 is placed on the double-layer lifting conveying roller line 15, a transfer robot and a disc clamping jaw 17 are connected to one end of the disc feeding mechanism 3 through a connecting piece, a disc cache seat 18 is connected with the disc overturning and positioning mechanism 4, and a disc transfer mechanism 19 is connected to the disc cache seat 18; the disk turning positioning mechanism 4 includes: a disc positioning platform 20 and a disc overturning mechanism 21; the disc positioning platform 20 and the disc overturning mechanism 21 are both connected to the sleeve feeding mechanism 5; the sleeve feed mechanism 5 includes: a sleeve sorting and positioning mechanism 22, a horizontal multi-joint manipulator carrying mechanism 23 and a sleeve feeding mechanism 24; the horizontal multi-joint manipulator carrying mechanism 23 is arranged below the carrying robot and the disc clamping jaw 17, the sleeve sorting and positioning mechanism 22 is in linkage connection with the horizontal multi-joint manipulator carrying mechanism 23, and the sleeve feeding mechanism 24 is connected below the sleeve clamping and positioning rotating mechanism 6; the sleeve clamping and positioning rotating mechanism 6 comprises: a three-grip clamping cylinder 25, a rotary servo mechanism 26 and a cylinder propulsion mechanism 27; the cylinder propelling mechanism 27 is connected below the rotary servo mechanism 26, and the rotary servo mechanism 26 is connected with the three-grabbing clamping cylinder 25 through a rotating shaft rod; the automatic welding mechanism 7 includes: a water-cooled welding gun assembly 28, a welding gun lifting mechanism 29 and a welding gun rotating cylinder 30; the welding gun lifting mechanism 29 is connected above the water-cooling welding gun component 28; the automatic clear rifle mechanism 8 includes: a reamer thread cutting, oil spraying and gun cleaning mechanism 31 and a three-axis servo transplanting module 32; the reamer thread cutting oil injection gun cleaning mechanism 31 and the three-axis servo transplanting module 32 are movably installed through guide rails; the automatic blanking mechanism 9 includes: a blanking slide way 33, a material receiving slide way 34 and a material distributing and blocking stop cylinder 35; the blanking slideway 33, the material receiving slideway 34 and the material distributing gear stopping cylinder 35 are all arranged on the automatic blanking mechanism 9; the pole setting finished product stacking robot 10 includes: a handling robot and a finished gripper 36 and a palletized material frame 37; the transfer robot and the finished product clamping jaw 36 are hinged with the transfer robot and the disc clamping jaw 17, and the stacking material frame 37 is connected to one side of the double-layer lifting conveying roller line 15; automatic remodeling mechanism of pole setting product includes: a length model changing mechanism and a diameter model changing mechanism.
Specifically, the steel pipe clamping and aligning mechanism 13 includes: a first pneumatic tensioning inner support clamping jaw 38, a servo rotating mechanism 39, a first servo moving sliding table 40 and a detection photoelectric sensor 41; the first pneumatic tensioning inner supporting clamping jaw 38 is connected with the servo rotating mechanism 39 through a connecting plate, and a detection photoelectric sensor 41 is connected to one end of the first pneumatic tensioning inner supporting clamping jaw 38; the steel pipe penetration pushing mechanism 14 comprises a second servo moving sliding table 42 and a lifting center 43.
In this embodiment, drive first pneumatic tensioning internal stay clamping jaw 38 through first servo removal slip table 40 and get into the steel pipe internal diameter, carry out the internal stay and press from both sides tightly, rethread servo rotary mechanism 39 drives first pneumatic tensioning internal stay clamping jaw 38 rotatory to make the steel pipe follow and do the rotation together. The photoelectric sensor detects the through hole on the steel pipe while rotating, and when the through hole is detected, the rotation is stopped, so that the aim of aligning the steel pipe is fulfilled; after the steel pipe is clamped, the first servo moving sliding table 40 pushes forwards for one stage to loosen the rear clamping jaw, servo retraction is carried out, the lifting tip 43 descends to the center of the steel pipe, and then the second servo moving sliding table 42 moves forwards to enable the tip to contact the steel pipe and push forwards for two stages.
Specifically, the carousel conveying mechanism 19 includes: a disc centering clamping jaw 44, an elastic detection sensor 45, a first lifting cylinder 46 and a portal frame pneumatic transverse moving mechanism 47; the disc centering clamping jaw 44 is connected with an elastic detection sensor 45 in a linkage mode, and the elastic detection sensor 45 is connected with a first lifting cylinder 46.
In this embodiment, the first lifting cylinder 46 drives the centering clamping jaw to descend, when the centering clamping jaw contacts the disc on the uppermost layer, the elastic detection sensor 45 is triggered, the centering clamping jaw clamps the disc on the uppermost layer, the first lifting cylinder 46 is lifted, and finally the disc is conveyed to the disc positioning platform 20 by the gantry pneumatic traversing mechanism 47.
Specifically, the sleeve feeding mechanism 24 includes: a V-shaped positioning tool 48, a second lifting cylinder 49, a rodless transverse moving cylinder 50 and a pressing cylinder 51; the second lifting cylinder 49 is connected below the V-shaped positioning tool 48, the pressing cylinder 51 is connected to the pressing cylinder 51, and the rodless transverse moving cylinder 50 is connected to the pressing cylinder 51; the rotary servo mechanism 26 and the cylinder advancing mechanism 27 include: the servo and speed reducer combination 52 is connected with the three-grab clamping cylinder 25 through the coupler 53, and the servo and speed reducer combination 52 is connected with the three-grab clamping cylinder 53 through the coupler 53.
In the embodiment, a sleeve clamp is taken and carried to the V-shaped positioning tool 48 through a horizontal multi-joint manipulator, a rodless transverse moving cylinder 50 drives the sleeve on the V-shaped positioning tool 48 to move inwards to a proper position, then the sleeve is jacked to a central position through a second lifting cylinder 49, and finally a pressing cylinder 51 jacks a product into a three-grab clamping cylinder 25; the whole rotary servo mechanism 26 is arranged on a cylinder propelling mechanism 27 and is formed by combining a single-rod double-acting cylinder and two groups of guide rails. The sleeve is clamped by a three-grab clamping cylinder 25 on a rotary servo mechanism 26 and is rotated by servo to realize the rotation required by automatic welding. And then the assembly and the unloading are realized by moving left and right through the lower cylinder.
Specifically, the welding gun lifting mechanism 29 and the welding gun rotating cylinder 30 each include: a torch mounting bracket 54, a torch rotating cylinder 30, and a torch lifting cylinder 55; the torch mounting bracket 54 and the torch lifting cylinder 55 are coupled to each other by the torch rotating cylinder 30.
In this embodiment, the second lifting cylinder 49 drives the welding gun to weld, and the welding gun is lifted after the welding is completed, and is rotated by the welding gun rotating and swinging cylinder to a position suitable for automatic gun cleaning.
Specifically, the length remodeling mechanism comprises: a steel tube feeding length model changing mechanism 56, a steel tube penetrating and pushing length model changing mechanism 57 and a tailstock thimble length model changing mechanism 58; the diameter size model changing mechanism comprises a steel pipe feeding diameter model changing mechanism 59, a welding gun lifting diameter size model changing mechanism 60 and a sleeve feeding diameter size model changing mechanism 61.
In the embodiment, the shape change of the length of the steel pipe is realized through the welding gun mounting bracket 54, the welding gun rotating cylinder 30 and the welding gun lifting cylinder 55; the steel pipe length is changed by a steel pipe feeding diameter changing mechanism 59, a welding gun lifting diameter changing mechanism 60 and a sleeve feeding diameter changing mechanism 61.
Specifically, steel pipe material loading length remodeling mechanism 56 includes: a second servo moving slide table 42 and a first steel pipe lifting mechanism 62; the steel pipe penetration pushing length model changing mechanism 57 comprises; the first servo moving sliding table 40, the second steel pipe lifting mechanism 63 and the first pneumatic tensioning inner supporting clamping jaw 38; the tailstock thimble length remodeling mechanism 58 includes: a rotary tailstock mechanism 64, a tailstock telescoping cylinder 65, and a tailstock-moving servo slide 66.
In this embodiment, the first servo moving sliding table 40 drives the second steel pipe lifting mechanism 63 to move, so as to change the position of the second steel pipe lifting mechanism 63, and thus, steel pipes with all lengths in the servo stroke range can be normally loaded; the steel pipe is clamped by the first pneumatic tensioning inner supporting clamping jaw 38, and the second-stage propulsion length position of the steel pipe is changed by the movement of the first servo moving sliding table 40 and the first steel pipe lifting mechanism 62, so that the steel pipes with all lengths in the servo stroke range can be normally advanced in a second stage; the tailstock moves the servo sliding table 66 to drive the rotary tailstock mechanism 64 and the tailstock telescopic cylinder 65 to move, so that the final pushing length position of the steel pipe is changed, and the steel pipe with all lengths in the servo stroke range can be normally and finally pushed.
Specifically, steel pipe material loading diameter size remodelling 59 includes: a first steel pipe lifting mechanism 62, a second steel pipe lifting mechanism 63, a steel pipe lifting and beveling cylinder 67 and a beveling block 68; the welding gun lifting diameter size remodeling mechanism 60 comprises: a welding gun lifting air cylinder 55, a welding gun lifting lower limit switching air cylinder 69 and a lower limit block 70; the sleeve feeding diameter size remodeling mechanism 61 comprises: v-shaped positioning tooling 48 and a sleeve feeding diameter size changing mechanism 61.
In the embodiment, the lifting height of the steel pipe is changed by the steel pipe lifting and tilting cylinder 67, so that the purpose of consistent center heights of two steel pipes with different diameters can be realized, and the function of changing the steel pipe feeding diameter size by 59 is achieved; the position of the downward movement of the second lifting cylinder 49 of the welding gun is changed by the rotation of the lower lifting limit switching cylinder 69 of the welding gun, so that the purpose that the welding surfaces of two steel pipes with different diameters are consistent in height relative to the welding gun is achieved, and the function of changing the shape of the lifting diameter of the welding gun during welding is achieved; the final height of the V-shaped positioning tool 48 is changed through the second lifting cylinder 49, so that the purpose that the central heights of the two sleeves with different diameters are consistent is achieved, and the function of changing the feeding diameter of the sleeves is achieved.
The working principle and the using process of the utility model are as follows: the steel pipes are automatically fed by the distributing and jacking cylinder 12 of the steel pipe distributing and feeding mechanism 1, enter the first steel pipe lifting mechanism 62 and the second steel pipe lifting mechanism 63, and are clamped and positioned by the first steel pipe lifting mechanism 62. The second servo moving ramp 42 moves to push the steel pipe into the first pneumatic tension inner support jaw 38 and is clamped by the inner support. At the moment, the first steel pipe lifting mechanism 62 clamps and releases, the servo rotating mechanism 39 drives the clamped steel pipe to rotate, and when the detection photoelectric sensor 41 detects a steel pipe hole, the rotation is stopped, and the alignment is completed. The discs are stacked in a disc tray 16 tool, conveyed to a grabbing position by a double-layer lifting conveying roller line 15, grabbed by a transfer robot and a disc clamping jaw 17 and uploaded to a disc cache seat 18. Then the disc is transported to a disc positioning platform 20 by a disc transporting mechanism 19; then the disk turnover mechanism 21 turns over and positions the components to wait for assembly. After the alignment of the steel pipe is finished, the steel pipe is pushed forward by a first servo moving sliding table 40 for one-stage pushing, after the alignment is finished, the first pneumatic tensioning inner support clamping jaw 38 is loosened, servo retraction is carried out, the lifting tip 43 descends to the center position of the steel pipe, and then the second servo moving sliding table 42 moves forward, so that the tip contacts the steel pipe and carries out two-stage pushing. At this time, the steel pipe is penetrated into the disc to be assembled, and the assembly of the steel pipe and the disc is completed. And finally, moving the whole body to a welding position. The sleeve is discharged by the sleeve sorting and positioning mechanism 22, conveyed to a V-shaped positioning tool 48 of the sleeve feeding mechanism 24 by the horizontal multi-joint manipulator conveying mechanism 23, transplanted in front of the three-grabbing and clamping cylinder 25 by the rodless transverse moving cylinder 50, and finally pushed into the three-grabbing and clamping cylinder 25 by the pressing cylinder 51 to clamp and position the sleeve to wait for assembly. The sleeve at the waiting position is pushed into the head end of the steel pipe by the cylinder pushing mechanism 27, and the assembly of the steel pipe and the sleeve is completed. The rotating tailstock mechanism 64 is driven by a tailstock moving servo sliding table 66 to move to the tail end of the steel pipe, and the tail end of the steel pipe is pressed against the rotating tailstock by a tailstock telescopic cylinder 65. The torch lifting mechanism 29 is lowered to move the water-cooled torch unit 28 to the welding position, and the automatic spot welding is performed. After the electric welding is finished, the disc turnover mechanism 21 resets. At this time, the product has certain strength after being spot-welded. After the spot welding is completed, the full-length welding is continued for the entire circumferential portion. When full welding is carried out, the sleeve is driven by the sleeve rotating servo mechanism 26 to rotate for a whole circle, so that the whole product is driven to rotate, and full welding is realized. After welding, all mechanisms reset, and products automatically fall to the blanking slide rail 33 and enter the material receiving slide rail 34 and are blocked by the material separating and blocking stop cylinder 35. Only one product is allowed to enter the robot material taking position. The handling robot and the finished product gripper 36 automatically stack the product gripping and handling material frame 37. After welding is completed each time, in the synchronous process of assembling products, the three-axis servo transplanting module 32 drives the automatic gun cleaning mechanism 8 to automatically clean one of the eleven sets of welding guns, and the automatic gun cleaning operation without stopping is completed by circulating in sequence.