CN116021411A

CN116021411A - Full-automatic polishing machine for steel pipe welding

Info

Publication number: CN116021411A
Application number: CN202211656480.8A
Authority: CN
Inventors: 赵政理
Original assignee: Jiangsu Yinjiang Precision Technology Co ltd
Current assignee: Jiangsu Yinjiang Precision Technology Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-04-28

Abstract

The application discloses full-automatic polishing machine for steel pipe welding belongs to the technical field of polishing machines, and comprises a polishing machine body, wherein a discharging table is arranged on one side of the polishing machine body, a charging box is arranged below the discharging table, a discharging through groove is formed in the side surface, close to the polishing machine body, of the discharging table, a rotating rod is rotatably arranged on the discharging table, four rotating plates are fixed on the outer peripheral surface of the rotating rod, and the inner wall, close to a steel pipe, of the rotating plate can be attached to the outer periphery of the steel pipe; the outer peripheral surface of the rotating rod is sleeved and fixed with a first gear, a cavity is arranged in the discharging table, a movable frame is arranged in the cavity, a second gear which can be meshed with the first gear is rotatably arranged on the movable frame, and a driving assembly for driving the movable frame to reciprocate along the width direction of the discharging table is arranged in the cavity. The steel pipe can reduce the possibility of deviation of the steel pipe.

Description

Full-automatic polishing machine for steel pipe welding

Technical Field

The application relates to the technical field of polishing machines, in particular to a full-automatic polishing machine for steel pipe welding.

Background

Polishers, also known as grinders, are often used for mechanical grinding, polishing and waxing. The working principle of the polishing machine is as follows: the motor drives the sponge or wool polishing disc arranged on the polishing machine to rotate at a high speed, and the polishing disc and the polishing agent jointly act and rub the surface to be polished, so that the purposes of removing paint surface pollution, oxide layers and shallow marks can be achieved.

The chinese patent publication No. CN214292584U discloses an automatic feeding device of polishing machine, which comprises polishing equipment, a feeding frame, a material conveying frame arranged on the feeding frame and a material bearing frame arranged on the outer side of the feeding frame, wherein a material feeding assembly for automatically conveying a pipe fitting in the material bearing frame into the material conveying frame is arranged on the material conveying frame, and a material discharging hopper is arranged on one side, far away from the feeding frame, of the polishing equipment.

For the above-described related art, the inventors consider that: the steel pipe rolls to the bottom of unloading hopper from the inclined plane under self action of gravity after polishing by the burnishing machine, before whole and the polishing dish separation of steel pipe, the tip that the steel pipe had broken away from the polishing dish easily takes place to warp under the condition that does not receive the constraint, leads to the part that the steel pipe other end and polishing dish contacted also to take place to warp easily, influences the polishing effect of steel pipe, and the steel pipe bumps with the polishing dish easily, influences the life of polishing dish.

Disclosure of Invention

In order to improve the problem that the steel pipe polishing process is askew and then influences the polishing effect, the application provides a full-automatic polishing machine for steel pipe welding.

The application provides a full-automatic burnishing machine of steel pipe welding adopts following technical scheme:

the full-automatic polishing machine for steel pipe welding comprises a polishing machine body, wherein a discharging table is arranged on one side of the polishing machine body, a charging box is arranged below the discharging table, a discharging through groove is formed in the side surface, close to the polishing machine body, of the discharging table, a rotating rod is rotatably arranged on the discharging table, four rotating plates are fixed on the outer peripheral surface of the rotating rod, and the inner wall, close to a steel pipe, of the rotating plate can be attached to the outer periphery of the steel pipe; the rotary rod is characterized in that a first gear is sleeved and fixed on the outer peripheral surface of the rotary rod, a cavity is formed in the discharging table, a movable frame is arranged in the cavity, a second gear which can be meshed with the first gear is rotatably arranged on the movable frame, and a driving assembly used for driving the movable frame to reciprocate along the width direction of the discharging table is arranged in the cavity.

By adopting the technical scheme, the steel pipe is polished by the polishing machine body and then moves to the discharging table through the discharging through groove, and the end part of the steel pipe, which is separated from the polishing machine body, is attached to the inner wall of the discharging table and the side surface of the rotating plate, which is close to the steel pipe, so that the steel pipe is always kept in a horizontal state, and the possibility of the steel pipe shifting is reduced; after the steel pipe is completely separated from the polishing machine body, the driving assembly pushes the movable frame to move towards the direction close to the first gear, so that the first gear is meshed with the second gear, the first gear drives the second gear to rotate, the second gear drives the rotating rod to rotate, and then the rotating plate is driven to rotate, and the rotating plate pushes the steel pipe into the charging box.

Preferably, the movable frame comprises a movable rod rotatably arranged on two side surfaces of the gear, the driving assembly comprises a movable block fixed on the side surface of the movable rod, movable grooves are respectively formed in the inner sides of the cavities, the movable block is connected with the discharging table in a sliding manner along the width direction of the discharging table through the movable grooves, a first spring is fixed on the side surface of the movable block, which is far away from the first gear, one end of the first spring, which is far away from the movable block, is fixedly connected with the inner wall of the movable groove, a magnetic attraction block is fixed on the side surface of the movable block, which is close to the first gear, and an electromagnet for attracting the magnetic attraction block is fixed on the inner wall of the movable groove, which is close to the first gear.

By adopting the technical scheme, in the process that the steel pipe moves to the upper part of the discharging table, the electromagnet is powered off, and the first gear is separated from the second gear; when the steel pipe is all moved to the top of the discharging table, the electromagnet is electrified to work, the magnetic attraction block moves towards the direction close to the first gear under the action of the elastic force of the first spring, the first gear is meshed with the second gear, the second gear drives the first gear to rotate, and the rotating plate pushes the steel pipe into the charging box.

Preferably, the discharging table is far away from the inner wall of the polishing machine body and is provided with a control groove, the discharging table is provided with a control block in a sliding manner along the length direction of the control groove, the side surface of the control block, which is far away from the polishing machine body, is fixedly provided with a second spring, one end of the second spring, which is far away from the control block, is fixedly connected with the inner wall of the control groove, the side surface of the control block is provided with a yielding groove, the yielding groove is close to the inner wall of the polishing machine body, a movable contact piece is fixed on the inner wall of the control groove and can be electrically contacted with the movable contact piece, the fixed contact piece is electrically connected with a power supply, and the movable contact piece is electrically connected with the electromagnetic iron.

By adopting the technical scheme, when the steel pipes are all moved above the discharging table, the end parts of the steel pipes are abutted against the control blocks, the steel pipes push the control blocks to move towards the direction away from the polishing machine body, so that the movable contact piece is electrically contacted with the fixed contact piece, the electromagnet is electrified to work, and the rotating plate rotates and pushes the steel pipes to move towards the direction close to the charging box; after the steel pipe is separated from the control block, the control block is reset under the action of the elastic force of the second spring, the movable contact piece is separated from the fixed contact piece, the electromagnet is powered off, the first gear is separated from the second gear, and the rotating plate stops rotating.

Preferably, the connecting slot is formed in the side face of the second gear, the driving rod is arranged in the connecting slot in a penetrating mode, the driving rod is connected with the movable frame in a sliding mode along the length direction of the discharging table, a plurality of spiral protrusions are uniformly distributed on the outer peripheral face of the driving rod along the circumferential direction of the driving rod, a plurality of spiral grooves are formed in the inner wall of the connecting slot, and the spiral protrusions are meshed with the spiral grooves.

Through adopting above-mentioned technical scheme, the actuating lever removes along the length direction of ejection of compact platform, and heliciform arch and heliciform recess intermeshing to make gear two rotate.

Preferably, the drive through groove that is linked together with the connecting through groove has been seted up in the carriage release lever, the both ends of carriage release lever all are fixed with the drive piece, the drive piece passes through the drive through groove is followed the length direction of ejection of compact platform with the carriage release lever slides and is connected, two the drive piece is drive piece one and drive piece two respectively, drive piece one keep away from the side of carriage release lever is fixed with the spring three, the spring three keep away from one end of drive piece one with the inner wall fixed connection of drive through groove, drive piece two keep away from the side of carriage release lever is fixed with magnet first, be provided with the butt groove in the carriage release lever, the carriage release lever passes through the butt groove is followed self length direction and is slided and is installed magnet second, magnet second can with magnet first looks actuation, the butt groove is close to the inner wall of drive piece second set up with the mounting groove one that is linked together with the drive through groove.

By adopting the technical scheme, when the first gear and the second gear are meshed with each other, the second magnetic block moves to the position of the first mounting groove, the second magnetic block moves towards the direction close to the moving block under the action of the suction force of the first magnetic block, the driving block drives the driving rod to move, and the driving rod drives the second gear to rotate; when the first gear is separated from the second gear, the second magnetic block moves towards the direction away from the first mounting groove, and the driving rod is reset under the action of the elastic force of the third spring.

Preferably, a spring four is fixed on the side surface of the second magnetic block away from the first gear, one end of the spring four away from the second magnetic block is fixedly connected with the inner wall of the abutting groove, a mounting groove two communicated with the abutting groove is formed in the side surface of the moving block, which is close to the first gear, and an abutting rod capable of being inserted into the abutting groove is fixed on the inner wall of the moving groove, which is close to the first gear.

By adopting the technical scheme, when the first gear is meshed with the second gear, the abutting rod is inserted into the abutting groove and pushes the magnetic block to be positioned at the position of the first installation groove, so that the first magnetic block moves towards the direction approaching to the second magnetic block; when the gear II moves towards the direction away from the gear I, the abutting rod is separated from the abutting groove, the magnetic block II is reset under the action of the elastic force of the spring IV, and the driving rod is reset under the action of the elastic force of the spring III.

Preferably, a baffle is installed in the charging box, the two sides of the baffle are both fixed with a stop block, the side surface of the discharging table, which is close to the charging box, is fixed with a guide rod, the side surface of the stop block is provided with a guide through groove used for penetrating the guide rod, and the discharging table is provided with a pushing component used for pushing the baffle to move towards the direction away from the discharging table.

Through adopting above-mentioned technical scheme, the steel pipe gets into the charging box under the promotion of rotor plate, and the baffle removes towards the direction of keeping away from the ejection of compact platform under the effect of pushing assembly for the steel pipe is placed along the width direction of charging box after getting into the charging box, makes the steel pipe in the charging box put more neat.

Preferably, the pushing component comprises a mounting plate fixed on the side surface of the discharging table, a mounting through groove is formed in the side surface of the mounting plate, a rotating sleeve is rotationally mounted in the mounting through groove, a threaded rod is arranged in the rotating sleeve in a penetrating mode, the threaded rod is in threaded transmission fit with the rotating sleeve, a pressing block is fixed at the end portion, far away from the rotating sleeve, of the threaded rod, and a pressing groove for inserting the pressing block is formed in the side surface, close to the threaded rod, of the stopping block.

Through adopting above-mentioned technical scheme, support the briquetting and insert and establish in supporting the indent for the threaded rod removes along the width direction of ejection of compact platform, rotates the sleeve and takes place to rotate, and then drives the threaded rod and remove, and the threaded rod passes through to support the briquetting and promotes the baffle and remove.

Preferably, the outer peripheral surface of the rotating sleeve is sleeved and fixed with a first bevel gear, the outer peripheral surface of the rotating rod is sleeved and fixed with a second bevel gear, and the first bevel gear is meshed with the second bevel gear.

Through adopting above-mentioned technical scheme, dwang pivoted in-process drives second bevel gear and rotates, and second bevel gear drives first bevel gear and rotates, and first bevel gear drives the rotation sleeve and rotates to drive baffle slow movement.

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

1. the steel pipe is polished by the polishing machine body and then moves to the discharging table through the discharging through groove, and the end part of the steel pipe, which is separated from the polishing machine body, is attached to the inner wall of the discharging table and the side surface of the rotating plate, which is close to the steel pipe, so that the steel pipe is always kept in a horizontal state, and the possibility of the steel pipe shifting is reduced; after the steel pipe is completely separated from the polishing machine body, the driving assembly pushes the movable frame to move towards the direction close to the first gear, so that the first gear is meshed with the second gear, the first gear drives the second gear to rotate, the second gear drives the rotating rod to rotate, and the rotating plate is driven to rotate, so that the rotating plate pushes the steel pipe into the charging box;

2. when the steel pipes are all moved above the discharging table, the end parts of the steel pipes are abutted against the control blocks, the steel pipes push the control blocks to move towards the direction away from the polishing machine body, so that the movable contact pieces are in electrical contact with the fixed contact pieces, the electromagnet is electrified to work, and the rotating plate rotates and pushes the steel pipes to move towards the direction close to the charging box; after the steel pipe is separated from the control block, the control block resets under the action of the elasticity of the second spring, the movable contact piece is separated from the fixed contact piece, the electromagnet is powered off, the first gear is separated from the second gear, and the rotating plate stops rotating;

3. when the first gear and the second gear are meshed with each other, the second magnetic block moves to the position of the first mounting groove, the second magnetic block moves towards the direction close to the moving block under the action of the attractive force of the first magnetic block, the driving block drives the driving rod to move, and the driving rod drives the second gear to rotate; when the first gear is separated from the second gear, the second magnetic block moves towards the direction away from the first mounting groove, and the driving rod is reset under the action of the elastic force of the third spring.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a full-automatic polishing machine for welding steel pipes according to an embodiment of the application.

Fig. 2 is a schematic structural view of a discharge table and a charging box in the full-automatic polishing machine for welding steel pipes in the embodiment of the application.

Fig. 3 is a cross-sectional view of a discharge table in a full-automatic steel pipe welding polisher according to an embodiment of the present application.

Fig. 4 is a cross-sectional view of a discharge table in a full-automatic steel pipe welding polisher according to an embodiment of the present application.

Fig. 5 is a cross-sectional view of a moving rod and a moving block in a full-automatic polishing machine for welding steel pipes according to an embodiment of the present application.

Reference numerals: 1. a polishing machine body; 11. a discharging table; 12. discharging through grooves; 13. an inclined plane; 2. a rotating lever; 21. a rotating plate; 22. a cavity; 23. a moving groove; 24. a moving block; 25. a first gear; 26. a first spring; 27. a magnetic suction block; 28. an electromagnet; 3. a moving rack; 31. a moving rod; 32. a second gear; 33. connecting the through groove; 34. driving the through groove; 35. a helical groove; 4. a control block; 41. a control groove; 42. a second spring; 43. a relief groove; 44. a movable contact; 45. a fixed contact; 5. a driving rod; 51. a driving block; 52. spiral bulges; 53. a first driving block; 54. a second driving block; 55. a third spring; 56. a first magnetic block; 6. a second magnetic block; 61. a first mounting groove; 62. a spring IV; 63. an abutment groove; 64. a second mounting groove; 65. a butt joint rod; 7. a charging box; 71. a baffle; 72. a stop block; 73. a guide rod; 74. a guide through groove; 75. a mounting plate; 76. installing a through groove; 77. rotating the sleeve; 8. a first bevel gear; 81. a second bevel gear; 82. a threaded rod; 83. pressing blocks; 84. pressing the groove.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses a full-automatic polishing machine for steel pipe welding. Referring to fig. 1 and 2, the full-automatic polishing machine for steel pipe welding comprises a polishing machine body 1, a discharging table 11 arranged on one side of a discharging hole of the polishing machine body 1 and a charging box 7 arranged below the discharging table 11, wherein a discharging through groove 12 for steel pipes to enter is formed in the side surface of the discharging table 11, which is close to the polishing machine body 1, and the side surface of the discharging table 11, which is close to the charging box 7, is provided with an inclined surface 13. The discharging table 11 is rotatably provided with a horizontally arranged rotating rod 2, and four rotating plates 21 are fixed on the peripheral surface of the rotating rod 2. The four rotating plates 21 are arranged at equal intervals along the circumferential direction of the rotating rod 2, and the inner wall of the rotating plate 21, which is close to the steel pipe, can be attached to the periphery of the steel pipe.

Referring to fig. 2 and 3, a cavity 22 is provided in the discharge table 11, and a movable frame 3 is installed in the cavity 22. The moving frame 3 includes two moving rods 31 and a gear II 32 rotatably installed between the two moving rods 31. The end face of the moving rod 31 far away from the gear II 32 is fixed with a moving block 24, the opposite inner sides of the cavity 22 are respectively provided with a moving groove 23, and the moving block 24 is connected with the discharging table 11 in a sliding manner along the width direction of the discharging table 11 through the moving grooves 23. The outer peripheral surface of the rotating rod 2 is sleeved and fixed with a first gear 25, and the first gear 25 can be meshed with a second gear 32. The side of the moving block 24 far away from the first gear 25 is fixed with a first spring 26, and one end of the first spring 26 far away from the moving block 24 is fixedly connected with the inner wall of the moving groove 23. The side surface of the moving block 24, which is close to the gear one 25, is embedded and fixed with a magnetic attraction block 27, and the inner wall of the moving groove 23, which is close to the gear one 25, is embedded and fixed with an electromagnet 28 for attracting the magnetic attraction block 27.

Referring to fig. 1, 3 and 4, a control groove 41 is provided in an inner wall of the discharge table 11 far from the polisher body 1, and the control block 4 is slidably installed on the discharge table 11 along a length direction thereof through the control groove 41. The side of the control block 4 far away from the polishing machine body 1 is fixedly provided with a second spring 42, and one end of the second spring 42 far away from the control block 4 is fixedly connected with the inner wall of the control groove 41. The top surface of the control block 4 is provided with a yielding groove 43, and a movable contact piece 44 is fixed on the inner wall of the yielding groove 43, which is close to the polishing machine body 1. Fixed contact 45 that can electrically contact movable contact 44 is fixed to the inner wall of control groove 41, and fixed contact 45 is electrically connected with the power, and movable contact 44 is electrically connected with electromagnet 28.

Referring to fig. 3 and 5, a connecting slot 33 is formed in the side surface of the second gear 32, and the driving rod 5 is inserted into the connecting slot 33. A driving through groove 34 communicated with the connecting through groove 33 is formed in the moving rod 31, driving blocks 51 are fixed at two ends of the driving rod 5, and the driving blocks 51 are slidably connected with the moving rod 31 along the length direction of the discharging table 11 through the driving through groove 34. The outer peripheral surface of the driving rod 5 is uniformly provided with a plurality of spiral bulges 52 along the circumferential direction of the driving rod, the inner wall of the connecting through groove 33 is provided with a plurality of spiral grooves 35, the spiral bulges 52 are in one-to-one correspondence with the spiral grooves 35, and the spiral bulges 52 are meshed with the corresponding spiral grooves 35.

Referring to fig. 3 and 5, the two driving blocks 51 are a first driving block 53 and a second driving block 54, a third spring 55 is fixed on the side surface of the first driving block 53 away from the moving rod 31, and one end of the third spring 55 away from the first driving block 53 is fixedly connected with the inner wall of the driving through groove 34. The side surface of the second driving block 54 far away from the moving rod 31 is fixedly provided with a first magnetic block 56, the moving block 24 is internally provided with an abutting groove 63, and the inner wall of the abutting groove 63 close to the second driving block 54 is provided with a first mounting groove 61 communicated with the driving through groove 34. The moving block 24 is slidably provided with a second magnetic block 6 along the length direction thereof through the abutting groove 63, and the second magnetic block 6 can be attracted with the first magnetic block 56. The side of the second magnetic block 6 far away from the first gear 25 is fixedly provided with a fourth spring 62, and one end of the fourth spring 62 far away from the second magnetic block 6 is fixedly connected with the inner wall of the abutting groove 63. The side surface of the moving block 24, which is close to the first gear 25, is provided with a second mounting groove 64 communicated with the abutting groove 63, the inner wall of the moving groove 23, which is close to the first gear 25, is fixedly provided with an abutting rod 65 which can be inserted into the second mounting groove 64, and the abutting rod 65 can be abutted with the second magnetic block 6.

Referring to fig. 1 and 2, a baffle 71 is installed in the charging box 7, and stoppers 72 are fixed to both sides of the baffle 71. The side surface of the discharging table 11, which is close to the charging box 7, is fixedly provided with a guide rod 73, and the side surface of the stop block 72 is provided with a guide through groove 74 for penetrating the guide rod 73. The side of the discharging table 11 far away from the polishing machine body 1 is fixedly provided with a mounting plate 75, the side of the mounting plate 75 is provided with a mounting through groove 76, and the mounting through groove 76 is rotationally provided with a rotating sleeve 77. The first bevel gear 8 is fixed to the outer peripheral surface of the rotating sleeve 77, and the second bevel gear 81 meshed with the first bevel gear 8 is fixed to the outer peripheral surface of the rotating rod 2. Threaded rod 82 wears to be equipped with in the rotation sleeve 77, and threaded rod 82 and rotation sleeve 77 screw drive cooperation. The end of the threaded rod 82 far away from the rotating sleeve 77 is fixed with a pressing block 83, and the side surface of the stop block 72 near the threaded rod 82 is provided with a pressing groove 84 for inserting the pressing block 83.

The rotating rod 2 drives the second bevel gear 81 to rotate, the second bevel gear 81 drives the rotating sleeve 77 to rotate through the first bevel gear 8, the rotating sleeve 77 drives the threaded rod 82 to move along the width direction of the discharging table 11, and the threaded rod 82 pushes the baffle 71 to move towards the direction away from the discharging table 11 through the pressing block 83, so that steel pipes enter the charging box 7 and are orderly stacked.

The implementation principle of the full-automatic polishing machine for steel pipe welding in the embodiment of the application is as follows: when all the steel pipes enter the discharging table 11, the steel pipes push the control block 4 to move towards the direction approaching to and away from the polishing machine body 1, the movable contact piece 44 is in electrical contact with the fixed contact piece 45, the electromagnet 28 is electrified to work, the moving block 24 drives the gear II 32 to move towards the direction approaching to the gear I25, and the gear I25 and the gear II 32 are meshed with each other; the abutting rod 65 is inserted into the abutting groove 63, the abutting rod 65 pushes the second magnetic block 6 to move to the first mounting groove 61, the first magnetic block 56 moves towards the direction close to the second magnetic block 6, the driving rod 5 is driven to move, the driving rod 5 is meshed with the spiral protrusion 52 through the spiral groove 35, the second gear 32 is driven to rotate, the first gear 32 is driven to rotate by the first gear 25, the first gear 25 drives the rotating rod 2 to rotate, the rotating plate 21 pushes the steel pipe to move, and the steel pipe falls into the charging box 7; after the steel pipe is separated from the control block 4, the control block 4 is reset under the action of the elastic force of the spring II 42, the movable contact piece 44 is separated from the fixed contact piece 45, the electromagnet 28 is powered off, the movable block 24 is reset under the action of the elastic force of the spring I26, the gear I25 is separated from the gear II 32, and the rotating plate 21 stops rotating.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A full-automatic polishing machine for steel pipe welding is characterized in that: the polishing machine comprises a polishing machine body (1), wherein a discharging table (11) is arranged on one side of the polishing machine body (1), a charging box (7) is arranged below the discharging table (11), a discharging through groove (12) is formed in the side surface, close to the polishing machine body (1), of the discharging table (11), a rotating rod (2) is rotatably arranged on the discharging table (11), four rotating plates (21) are fixed on the outer peripheral surface of the rotating rod (2), and the inner wall, close to a steel pipe, of the rotating plate (21) can be attached to the outer periphery of the steel pipe; the automatic discharging device is characterized in that a first gear (25) is fixedly sleeved on the outer peripheral surface of the rotating rod (2), a cavity (22) is formed in the discharging table (11), a moving frame (3) is arranged in the cavity (22), a second gear (32) which can be meshed with the first gear (25) is rotatably arranged on the moving frame (3), and a driving assembly which is used for driving the moving frame (3) to reciprocate along the width direction of the discharging table (11) is arranged in the cavity (22).

2. A full-automatic polisher for welding steel pipes as set forth in claim 1 wherein: the movable frame (3) comprises a movable rod (31) rotatably arranged on the side face of a gear II (32), the driving assembly comprises a movable block (24) fixed on the side face of the movable rod (31), movable grooves (23) are respectively formed in the inner sides of the cavities (22), the movable block (24) is connected with the discharging table (11) in a sliding mode along the width direction of the discharging table (11) through the movable grooves (23), a spring I (26) is fixed on the side face, away from the gear I (25), of the movable block (24), one end, away from the movable block (24), of the spring I (26) is fixedly connected with the inner wall of the movable groove (23), a magnet block (27) is fixed on the side face, close to the gear I (25), of the movable block (24), and an electromagnet (28) for sucking the magnet block (27) is fixed on the inner wall, close to the gear I (25).

3. A full-automatic polisher for welding steel pipes as set forth in claim 2 wherein: control groove (41) have been seted up to the inner wall that ejection of compact platform (11) kept away from burnishing machine organism (1), ejection of compact platform (11) pass through control groove (41) are slided along self length direction and are installed control block (4), control block (4) are kept away from the side of burnishing machine organism (1) is fixed with spring two (42), spring two (42) keep away from one end of control block (4) with the inner wall fixed connection of control groove (41), the side of control block (4) has been seted up and has been stepped down groove (43), it is close to step down groove (43) the inner wall of burnishing machine organism (1) is fixed with movable contact piece (44), the inner wall of control groove (41) be fixed with movable contact piece (44) electric contact's fixed contact piece (45), fixed contact piece (45) are connected with the power electricity, movable contact piece (44) with electro-magnet (28) electric connection.

4. A full-automatic polisher for welding steel pipes as set forth in claim 2 wherein: the side of gear two (32) has been seted up and has been linked together groove (33), wear to be equipped with actuating lever (5) in linking together groove (33), actuating lever (5) are followed the length direction of ejection of compact platform (11) with remove frame (3) and slide and be connected, the outer peripheral face of actuating lever (5) has a plurality of heliciform arch (52) along self circumference equipartition, a plurality of heliciform recess (35) have been seted up to the inner wall of linking together groove (33), heliciform arch (52) with heliciform recess (35) intermeshing.

5. A full-automatic polisher for welding steel pipes as set forth in claim 4 wherein: the utility model discloses a magnetic chuck is characterized by comprising a movable rod (31), a movable block (31) and a magnetic chuck, wherein a driving through groove (34) communicated with a connecting through groove (33) is formed in the movable rod (31), driving blocks (51) are fixedly arranged at two ends of the driving rod (5), the driving blocks (51) pass through the driving through groove (34) along the length direction of a discharging table (11) and are connected with the movable rod (31) in a sliding mode, the two driving blocks (51) are a driving block I (53) and a driving block II (54) respectively, a spring III (55) is fixedly arranged on the side surface of the movable rod (31) away from the driving block I (53), one end of the spring III (55) away from the driving block I (53) is fixedly connected with the inner wall of the driving through groove (34), a magnetic block I (56) is fixedly arranged on the side surface of the movable rod (31) away from the driving block II (54), a butt groove (63) is formed in the movable block (24), the butt groove (24) passes through the butt groove (63) to slide along the length direction of the driving block I (53), a second magnetic block (6) is fixedly arranged on the side surface of the movable rod (31), and the second magnetic chuck is close to the first magnetic chuck (56) and the first magnetic chuck is fixedly connected with the second magnetic chuck.

6. A full-automatic polisher for welding steel pipes as set forth in claim 5 wherein: the side of gear one (25) is kept away from to magnetic path two (6) is fixed with spring four (62), spring four (62) keep away from the one end of magnetic path two (6) with the inner wall fixed connection of butt groove (63), movable block (24) be close to the side of gear one (25) seted up with mounting groove two (64) that are linked together of butt groove (63), movable groove (23) be close to the inner wall of gear one (25) be fixed with butt pole (65) of magnetic path two (6) looks butt.

7. A full-automatic polisher for welding steel pipes as set forth in claim 1 wherein: install baffle (71) in charging box (7), the both sides of baffle (71) all are fixed with dog (72), ejection of compact platform (11) are close to the side of charging box (7) is fixed with guide bar (73), guide through groove (74) for wearing to establish guide bar (73) are seted up to the side of dog (72), be provided with on ejection of compact platform (11) and be used for promoting baffle (71) are kept away from the promotion subassembly that the direction of ejection of compact platform (11) removed.

8. A full-automatic polisher for welding steel pipes as set forth in claim 7 wherein: the pushing assembly comprises a mounting plate (75) fixed on the side face of the discharging table (11), a mounting through groove (76) is formed in the side face of the mounting plate (75), a rotating sleeve (77) is rotatably mounted in the mounting through groove (76), a threaded rod (82) is arranged in the rotating sleeve (77) in a penetrating mode, the threaded rod (82) is in threaded transmission fit with the rotating sleeve (77), a pressing block (83) is fixed at the end portion of the threaded rod (82) away from the rotating sleeve (77), and a pressing groove (84) for inserting the pressing block (83) is formed in the side face of the threaded rod (82) close to the stop block (72).

9. The full-automatic polishing machine for steel pipe welding according to claim 8, wherein: the outer peripheral surface of the rotating sleeve (77) is sleeved and fixed with a first bevel gear (8), the outer peripheral surface of the rotating rod (2) is sleeved and fixed with a second bevel gear (81), and the first bevel gear (8) is meshed with the second bevel gear (81).