CN220020785U

CN220020785U - Pipe magnetizing equipment

Info

Publication number: CN220020785U
Application number: CN202321710044.4U
Authority: CN
Inventors: 陈月德; 陈利祥
Original assignee: Shanghai Sheci Flaw Detector Manufacturing Co ltd
Current assignee: Shanghai Sheci Flaw Detector Manufacturing Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-11-14
Anticipated expiration: 2033-06-30

Abstract

The utility model relates to pipe magnetizing equipment, which comprises a supporting frame, a workbench, a transmission roller, an abutting component and a movable electrode, wherein the supporting frame is fixedly connected to the workbench, the transmission roller is rotationally connected to the supporting frame, the transmission roller is used for transmitting a pipe, the abutting component comprises a fixing piece, an abutting piece and a telescopic electrode, the fixing piece is fixedly connected to the workbench, the abutting piece is connected to the fixing piece, the fixing piece is used for controlling the abutting piece to slide up and down, the telescopic electrode comprises a telescopic cylinder and a first electrode plate, a cylinder body of the telescopic cylinder is connected to the abutting piece, a piston rod of the telescopic cylinder is fixedly connected to the first electrode plate, the first electrode plate is used for abutting the end part of the pipe, the movable electrode comprises a movable piece and a second electrode plate, the movable piece is slidingly connected to the workbench, and the second electrode plate and the first electrode plate are used for clamping the pipe. When the pipe fitting is conveyed to the abutting piece, conveying is stopped, the first electrode plate and the second electrode plate abut against the two ends of the pipe fitting, and magnetizing flaw detection is conducted on the pipe fitting with different lengths.

Description

Pipe magnetizing equipment

Technical Field

The utility model relates to the field of magnetic powder inspection, in particular to pipe magnetizing equipment.

Background

The magnetizing electrode (also called electrode shaft) of the magnetic particle inspection machine is a special conductive component used for guiding magnetizing current to pass through a workpiece and form a loop with the circumferential magnetizing transformer.

The magnetic powder inspection utilizes the interaction between the leakage magnetic field at the defect of the workpiece and the magnetic powder, and utilizes the difference of magnetic permeability and magnetic permeability of the steel product surface and near-surface defects (such as cracks, slag inclusion, hairlines and the like), the magnetic field at the discontinuous positions of the materials is distorted after magnetization, and the leakage magnetic field is generated at the surface of the workpiece at the part of the magnetic flux leakage positions, thereby attracting the magnetic powder to form magnetic powder accumulation-magnetic marks at the defect positions, displaying the defect positions and shapes under proper illumination conditions, and observing and explaining the accumulation of the magnetic powder, thus realizing the magnetic powder inspection.

However, when flaw detection is performed on a pipe, the conventional flaw detection machine cannot be adapted to pipes different in length.

Disclosure of Invention

In order to detect the defects of the pipes with different lengths, the utility model provides pipe magnetizing equipment.

The pipe magnetizing equipment provided by the utility model adopts the following technical scheme:

the utility model provides a pipe fitting magnetization equipment, includes support frame, workstation, transmission roller, butt subassembly and movable electrode, support frame fixed connection is in the workstation, the transmission roller rotates to be connected in the support frame, the transmission roller is used for transmitting the pipe fitting, the butt subassembly includes mounting, butt spare and flexible electrode, mounting fixed connection is in the workstation, the butt spare is connected in the mounting, the mounting is used for controlling the butt spare and reciprocates, flexible electrode includes flexible cylinder and first electrode plate, flexible cylinder's cylinder body is connected in the butt spare, flexible cylinder's piston rod fixed connection is in first electrode plate, first electrode plate is used for the butt pipe fitting tip, movable electrode includes moving part and second electrode plate, moving part sliding connection is in the workstation, second electrode plate and first electrode plate are used for pressing from both sides the pipe fitting.

Through adopting above-mentioned technical scheme, mounting control butt piece is used for supplying the pipe fitting butt to slide downwards, and the transmission roller rotates and carries the pipe fitting, stops carrying when the pipe fitting carries to butt piece, and the moving part slides the one end that makes second electrode plate butt pipe fitting, and telescopic cylinder drive first electrode plate slides and carries out the butt to the other end of pipe fitting, is convenient for carry out the magnetization flaw detection to the pipe fitting of different length, and the suitability is stronger.

Preferably, the fixing piece comprises a fixing seat and a lifting air cylinder, the fixing seat is fixedly connected to the workbench, the cylinder body of the lifting air cylinder is fixedly connected to the fixing seat, and the piston rod of the lifting air cylinder is fixedly connected to the abutting piece.

Through adopting above-mentioned technical scheme, use lift cylinder drive butt spare to slide from top to bottom, the motion is steady, easy and simple to handle, the control of being convenient for.

Preferably, the abutting piece comprises a connecting block and an abutting plate, one end of the connecting block is connected to the fixing piece, the other end of the connecting block is connected to the abutting plate, the abutting plate is provided with a through hole, the cylinder body of the telescopic cylinder is fixedly connected to one end of the abutting plate, deviating from the pipe fitting, and the piston rod of the telescopic cylinder penetrates through the through hole and is fixedly connected to the first electrode plate.

Through adopting above-mentioned technical scheme, the magnetization flaw detection to the pipe fitting is realized to the control of first electrode plate butt piping connection spare tip of being convenient for, simple structure, easy and simple to handle.

Preferably, the moving part comprises a rack, a moving seat and a gear, wherein the rack is fixedly connected to the upper end of the workbench, the length direction of the rack is parallel to the transmission direction of the conveying roller, the lower end of the moving seat is abutted to the upper end of the workbench, the lower end of the moving seat is provided with a moving groove, the gear is rotationally embedded in the moving groove, the rotation axis of the gear is parallel to the axis of the conveying roller, the gear is meshed with the rack, and the second electrode plate is connected to the moving seat.

Through adopting above-mentioned technical scheme, gear rotation makes the removal seat slide along the length direction of rack, and the second electrode plate of being convenient for removes suitable position, is applicable to the pipe fitting of different length and carries out the magnetization flaw detection.

Preferably, the movable electrode further comprises a movable cylinder and a stop lever, the cylinder body of the movable cylinder is fixedly connected with the movable seat, the piston rod of the movable cylinder is fixedly connected with one end of the stop lever, the other end of the stop lever is connected with the second electrode plate, and the movable cylinder is used for controlling the second electrode plate to slide along the width direction of the workbench so that the second electrode plate abuts against the end part of the pipe fitting.

Through adopting above-mentioned technical scheme, according to the length of pipe fitting, when the removal seat moved suitable position, the second electrode plate slip of moving cylinder control made the second electrode plate remove suitable position and carry out the butt to the pipe fitting, easy and simple to handle is applicable to magnetizing the pipe fitting of different length.

Preferably, a limiting groove is formed in the periphery of the transmission roller and used for limiting the pipe.

Through adopting above-mentioned technical scheme, the spacing groove makes the pipe fitting be difficult for coming off from the transmission roller.

Preferably, the diameter of the transfer roller increases as approaching the support frame.

By adopting the technical scheme, the device is suitable for magnetizing flaw detection of pipe fittings with different diameters, and has stronger applicability.

Preferably, the pipe magnetizing device further comprises a lifting assembly, the lifting assembly comprises a stand column, a driving air cylinder, a base body and a rotating piece, the stand column is fixedly connected to the ground, a cylinder body of the driving air cylinder is connected to the stand column, a piston rod of the driving air cylinder is connected to the lower end of the base body, the rotating piece is connected to the upper end of the base body, and the rotating piece is used for controlling the pipe fitting to rotate.

Through adopting above-mentioned technical scheme, drive cylinder control pedestal moves up for rotate the piece with the pipe fitting jack-up from the transmission roller, be convenient for rotate the piece control pipe fitting rotation, easy and simple to handle.

Preferably, the rotating member comprises a supporting rod and rotating discs, the lower end of the supporting rod is fixedly connected with the base body, the supporting rod is provided with a connecting port, the rotating discs are fixedly connected with rotating columns coaxially, the rotating columns are rotationally connected with the inner walls of the connecting port, the supporting rod and the rotating discs are provided with two rotating shafts, the rotating shafts of the two rotating discs are parallel to each other and parallel to the transmission direction of the pipe fitting, and the two rotating discs are used for placing the pipe fitting and controlling the rotation of the pipe fitting.

Through adopting above-mentioned technical scheme, the rolling disc rotates and makes the pipe fitting rotation, and the workman of being convenient for observes the pipe fitting periphery comprehensively, easy and simple to handle.

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

1. the fixing piece controls the abutting piece to slide downwards for abutting the pipe fitting, the transmission roller rotates to convey the pipe fitting, conveying is stopped when the pipe fitting is conveyed to the abutting piece, the moving piece slides to enable the second electrode plate to abut one end of the pipe fitting, the telescopic cylinder drives the first electrode plate to slide to abut the other end of the pipe fitting, so that the pipe fitting with different lengths can be subjected to magnetized flaw detection conveniently, and applicability is higher;

2. the gear rotates to enable the movable seat to slide along the length direction of the rack, so that the second electrode plate can conveniently move to a proper position, and the movable seat is suitable for magnetizing flaw detection of pipe fittings with different lengths;

3. the rotation of the rotating disc enables the pipe fitting to rotate, so that workers can observe the periphery of the pipe fitting comprehensively, and the operation is simple and convenient.

Drawings

Fig. 1 is a schematic view of the overall structure of a pipe magnetizing apparatus.

Fig. 2 is a schematic view of the internal structure of the pipe magnetizing apparatus in a cut-away state.

Fig. 3 is a schematic view of the overall structure of the table, support frame, transfer roller, transmission assembly, abutment assembly, moving electrode and lifting assembly.

Fig. 4 is a schematic overall structure of the abutment assembly.

Fig. 5 is a schematic view of the overall structure of the moving electrode.

Figure 6 is a schematic view of the overall construction of the lift assembly.

Fig. 7 is an enlarged view at a in fig. 6.

Reference numerals illustrate: 1. a work table; 11. a support plate; 12. a strip-shaped plate; 121. a driving plate; 1211. a driving groove; 2. a box house; 21. a magnetizing cavity; 22. a feed inlet; 23. a discharge port; 3. a support frame; 31. a rotating port; 4. a conveying roller; 41. rotating the column; 42. a limit groove; 5. a transmission assembly; 51. a drive plate; 511. a transmission groove; 52. a driving wheel; 53. a transmission belt; 54. a drive motor; 6. an abutment assembly; 61. a fixing member; 611. a fixing seat; 6111. a fixing plate; 6112. a mounting plate; 612. a lifting cylinder; 62. an abutment; 621. a connecting block; 622. an abutting plate; 6221. a through port; 63. a telescoping electrode; 631. a telescopic cylinder; 632. a first electrode plate; 7. a moving electrode; 71. a moving member; 711. a rack; 712. a movable seat; 7121. a moving groove; 7122. a moving port; 7123. a sliding port; 713. a gear; 714. a moving motor; 72. a moving cylinder; 73. a stop lever; 74. a second electrode plate; 8. a lifting assembly; 81. a column; 811. a placement groove; 8111. a positioning port; 82. a diagonal rod; 83. a driving cylinder; 84. a linkage rod; 851. a first link; 8511. a connecting column; 852. a second link; 853. a third link; 86. a lifting plate; 87. a base; 88. a rotating member; 881. a support rod; 8811. a connection port; 882. a rotating disc; 8821. a rotating column; 883. and driving the motor.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-7.

The embodiment of the utility model discloses a pipe magnetizing device. Referring to fig. 1 and 2, the pipe magnetizing apparatus includes a table 1, a cabinet 2, a support frame 3, a transfer roller 4, a transmission assembly 5, an abutment assembly 6, a moving electrode 7, and a lifting assembly 8.

Referring to fig. 2 and 3, the workbench 1 includes a support plate 11 and a strip-shaped plate 12, the strip-shaped plate 12 is provided with two, the lower end of the support plate 11 is fixedly connected to the ground, the support plate 11 is provided with two, the upper ends of the two support plates 11 are respectively fixedly connected to the two ends of the strip-shaped plate 12, and the length directions of the two strip-shaped plates 12 are parallel to each other. The lower extreme of box room 2 is connected in ground, and box room 2 is equipped with magnetization chamber 21, and the one end of box room 2 is equipped with feed inlet 22, and the other end of box room 2 is equipped with discharge gate 23, and feed inlet 22 and discharge gate 23 all communicate in magnetization chamber 21, and strip shaped plate 12 runs through feed inlet 22, magnetization chamber 21 and discharge gate 23 in proper order.

Referring to fig. 3, the supporting frame 3 is fixedly connected to the upper end of the strip-shaped plate 12, the supporting frame 3 is provided with a plurality of supporting frames 3, the plurality of supporting frames 3 are uniformly arranged at intervals along the length direction of the strip-shaped plate 12, the supporting frames 3 on the two strip-shaped plates 12 are opposite to each other, the supporting frame 3 is provided with a rotating opening 31, and the axis of the rotating opening 31 is horizontal and perpendicular to the length direction of the strip-shaped plate 12. The transmission roller 4 is arranged between the two opposite supporting frames 3, two ends of the transmission roller 4 are coaxially and fixedly connected with rotating columns 41, and the rotating columns 41 are rotatably connected to the inner wall of the rotating opening 31. The periphery of the transmission roller 4 is provided with a limit groove 42, the limit groove 42 is used for limiting the pipe, and the diameter of the transmission roller 4 increases along with the approach of the support frame 3.

Referring to fig. 2 and 3, the transmission assembly 5 includes a transmission plate 51, a transmission wheel 52, a transmission belt 53, and a transmission motor 54. The driving plate 51 is fixedly connected to the upper end of one strip-shaped plate 12, the length direction of the driving plate 51 is parallel to the length direction of the strip-shaped plate 12, a driving groove 511 is formed in one end, facing the supporting frame 3, of the driving plate 51, the rotating column 41 penetrates through the rotating opening 31 and is coaxially and fixedly connected to the driving wheels 52, the driving belt 53 is sleeved on the periphery of the driving wheels 52, and the driving belt 53 and the driving wheels 52 are arranged in the driving groove 511. The motor casing of the transmission motor 54 is fixedly connected to one end of the transmission plate 51, which is far away from the supporting frame 3, and the motor shaft of the transmission motor 54 penetrates through the transmission plate 51 and is coaxially and fixedly connected to one end of the transmission wheel 52, which is far away from the rotary column 41, and the transmission motor 54 is arranged on one side of the feed inlet 22, which is far away from the discharge outlet 23.

Referring to fig. 2 and 4, the abutting assembly 6 is provided in the magnetizing cavity 21, and the abutting assembly 6 includes a fixing piece 61, an abutting piece 62, and a telescopic electrode 63. The fixing member 61 includes a fixing base 611 and a lifting cylinder 612, the abutting member 62 includes a connection block 621 and an abutting plate 622, and the telescopic electrode 63 includes a telescopic cylinder 631 and a first electrode plate 632.

Referring to fig. 2 and 4, the fixing base 611 includes two fixing plates 6111 and a mounting plate 6112, the lower ends of the fixing plates 6111 are fixedly connected to the upper ends of the strip-shaped plates 12, the fixing plates 6111 are arranged in one-to-one correspondence with the strip-shaped plates 12, two ends of the mounting plate 6112 are respectively fixedly connected to the upper ends of the two fixing plates 6111, and the position of the fixing base 611 is close to the discharge hole 23. The cylinder body of lift cylinder 612 is fixedly connected to the upper end of mounting panel 6112, the piston rod of lift cylinder 612 runs through mounting panel 6112 back fixed connection in the upper end of connecting block 621, the lower extreme fixed connection of connecting block 621 is in butt joint board 622, butt joint board 622 is equipped with through-hole 6221, the axis of through-hole 6221 is on a parallel with the length direction of strip shaped plate 12, the cylinder body of telescopic cylinder 631 is fixedly connected in butt joint board 622 one end towards discharge gate 23, the piston rod of telescopic cylinder 631 passes through-hole 6221 back coaxial fixed connection in one end of first electrode plate 632, the other end of first electrode plate 632 is used for the one end of butt pipe fitting.

Referring to fig. 2 and 5, the moving electrode 7 is provided in the magnetizing cavity 21, the moving electrode 7 includes a moving member 71, a moving cylinder 72, a blocking lever 73 and a second electrode plate 74, and the moving member 71 includes a rack 711, a moving seat 712, a gear 713 and a moving motor 714.

Referring to fig. 3 and 5, a strip-shaped plate 12 far from the transmission plate 51 is connected with a driving plate 121 at one end far from the transmission plate 51, the length direction of the driving plate 121 is parallel to the length direction of the strip-shaped plate 12, a driving groove 1211 is arranged at the upper end of the driving plate 121, the length direction of the driving groove 1211 is parallel to the length direction of the driving plate 121, and a rack 711 is embedded in the driving groove 1211. The lower end of the movable seat 712 abuts against the upper end of the driving plate 121, the lower end of the movable seat 712 is provided with a movable groove 7121, the movable groove 7121 faces the driving groove 1211, the gear 713 is rotationally embedded in the movable groove 7121, the rotation axis of the gear 713 is parallel to the axis of the transmission roller 4, and the periphery of the gear 713 is meshed with the rack 711. One end of the movable base 712, which is away from the transmission plate 51, is provided with a movable opening 7122, the movable opening 7122 is communicated with the movable groove 7121, a motor casing of the movable motor 714 is fixedly connected to one end of the movable base 712, which is away from the transmission plate 51, and a motor shaft of the movable motor 714 passes through the movable opening 7122 and is coaxially and fixedly connected to the gear 713.

The moving seat 712 is provided with a sliding opening 7123, the axis of the sliding opening 7123 is parallel to the axis of the moving opening 7122, the sliding opening 7123 penetrates through the moving seat 712, the cylinder body of the moving cylinder 72 is fixedly connected to one end of the moving seat 712, which is away from the transmission plate 51, a piston rod of the moving cylinder 72 penetrates through the sliding opening 7123 and is coaxially and fixedly connected to one end of the stop lever 73, the other end of the stop lever 73 is fixedly connected to the second electrode plate 74, and the second electrode plate 74 is used for being abutted against one end of a pipe fitting.

Referring to fig. 2 and 6, the lifting assembly 8 is provided in the magnetizing cavity 21, and the lifting assembly 8 includes a column 81, a diagonal rod 82, a driving cylinder 83, a link rod 84, a first link 851, a second link 852, a third link 853, a lifting plate 86, a seat 87, and a rotation member 88.

The lower extreme fixed connection of stand 81 is in ground, stand 81 is equipped with two, one side that discharge gate 23 was kept away from to fixed plate 6111 is all located to two stands 81, the upper end of stand 81 is equipped with standing groove 811, standing groove 811 runs through stand 81 along the length direction of strip shaped plate 12, two cell walls that standing groove 811 is relative all are equipped with locating hole 8111, the cylinder body fixed connection of actuating cylinder 83 is in the one end of diagonal rod 82, the other end fixed connection of diagonal rod 82 is in the stand 81 that is close to discharge gate 23, the piston rod fixed connection of actuating cylinder 83 is in the gangbar 84, the gangbar 84 runs through standing groove 811, the length direction of gangbar 84 is parallel to the length direction of strip shaped plate 12.

One end of the first connecting rod 851 is rotationally connected to the linkage rod 84, the other end of the first connecting rod 851 is fixedly connected to the second connecting rod 852, an included angle between the length direction of the first connecting rod 851 and the length direction of the second connecting rod 852 is set to be a right angle, a connecting column 8511 is connected to the outer wall of the connecting position of the first connecting rod 851 and the second connecting rod 852, the connecting column 8511 is rotationally connected to the inner wall of the positioning opening 8111, one end of the second connecting rod 852, far away from the first connecting rod 851, is rotationally connected to one end of the third connecting rod 853, the other end of the third connecting rod 853 is fixedly connected to the lower end of the lifting plate 86, the upper end of the lifting plate 86 abuts against the lower end of the seat body 87, the seat body 87 is arranged between the two strip-shaped plates 12, the length direction of the seat body 87 is parallel to the length direction of the strip-shaped plates 12, and the two upright posts 81 are arranged at two ends of the strip-shaped plates 12.

Referring to fig. 3 and 7, the rotary member 88 includes a strut 881, a rotary disc 882 and a drive motor 883. The lower extreme fixed connection of branch 881 is in the upper end of pedestal 87, branch 881 is equipped with a plurality of, a plurality of branches 881 are along the even interval setting of the length direction of pedestal 87, there are two branches 881 between two adjacent transmission rollers 4, branch 881's upper end is equipped with connector 8811, connector 8811's axis is on a parallel with the length direction of strip 12, the coaxial fixedly connected with pillar 8821 of rolling disc 882, pillar 8821 rotates to be connected in connector 8811's inner wall, driving motor 883's motor casing fixed connection is in branch 881, driving motor 883's motor shaft rotates to be connected in pillar 8821, be used for supplying the pipe fitting to place between two rolling discs 882, rolling disc 882 rotates and drives the pipe fitting rotation.

The implementation principle of the pipe magnetizing equipment provided by the embodiment of the utility model is as follows: the conveying rollers 4 convey the pipe fitting, the lifting cylinder 612 drives the abutting plate 622 to move downwards to abut the pipe fitting, the moving motor 714 drives the gear 713 to rotate, the moving seat 712 slides, when the moving seat 712 slides to a position between two conveying rollers 4 where the end part of the pipe fitting far away from the lifting cylinder 612 is located, the moving cylinder 72 drives the second electrode plate 74 to slide, the moving seat 712 slides and the telescopic cylinder 631 drives the first electrode plate 632 to slide, the first electrode plate 632 and the second electrode plate 74 jointly abut the pipe fitting, the driving cylinder 83 drives the linkage rod 84 to slide, the first connecting rod 851, the second connecting rod 852 and the third connecting rod 853 all rotate, the lifting plate 86 lifts the seat 87 upwards, the pipe fitting is located between the rotating discs 882, and the driving motor 883 drives the rotating discs 882 to rotate, so that the pipe fitting rotates.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A pipe magnetizing apparatus, characterized in that: including support frame (3), workstation (1), transmission roller (4), butt subassembly (6) and moving electrode (7), support frame (3) fixed connection is in workstation (1), transmission roller (4) rotate and connect in support frame (3), transmission roller (4) are used for transmitting the pipe fitting, butt subassembly (6) include mounting (61), butt spare (62) and telescopic electrode (63), mounting (61) fixed connection is in workstation (1), butt spare (62) are connected in mounting (61), mounting (61) are used for controlling butt spare (62) and slide from top to bottom, telescopic electrode (63) are including telescopic cylinder (631) and first electrode plate (632), the cylinder body of telescopic cylinder (631) is connected in butt spare (62), the piston rod fixed connection of telescopic cylinder (631) is in first (632), first electrode plate (632) are used for butt spare tip, moving electrode (7) include moving member (71) and second (74), sliding connection is in workstation (71) and second electrode plate (632) are used for pressing from both sides tight pipe fitting (74).

2. A pipe magnetizing apparatus according to claim 1, characterized in that: the fixing piece (61) comprises a fixing seat (611) and a lifting cylinder (612), wherein the fixing seat (611) is fixedly connected to the workbench (1), a cylinder body of the lifting cylinder (612) is fixedly connected to the fixing seat (611), and a piston rod of the lifting cylinder (612) is fixedly connected to the abutting piece (62).

3. A pipe magnetizing apparatus according to claim 1, characterized in that: the butt piece (62) includes connecting block (621) and butt board (622), the one end of connecting block (621) is connected in mounting (61), the other end of connecting block (621) is connected in butt board (622), butt board (622) are equipped with through-hole (6221), the cylinder body fixed connection of telescopic cylinder (631) deviates from the one end of pipe fitting in butt board (622), the piston rod through-hole (6221) back fixed connection of telescopic cylinder (631) is in first electrode plate (632).

4. A pipe magnetizing apparatus according to claim 1, characterized in that: the movable part (71) comprises a rack (711), a movable seat (712) and a gear (713), wherein the rack (711) is fixedly connected to the upper end of the workbench (1), the length direction of the rack (711) is parallel to the transmission direction of the conveying roller, the lower end of the movable seat (712) is abutted to the upper end of the workbench (1), a movable groove (7121) is formed in the lower end of the movable seat (712), the gear (713) is rotationally embedded in the movable groove (7121), the rotation axis of the gear (713) is parallel to the axis of the conveying roller (4), the gear (713) is meshed with the rack (711), and the second electrode plate (74) is connected to the movable seat (712).

5. A pipe magnetizing apparatus according to claim 4, characterized in that: the movable electrode (7) further comprises a movable air cylinder (72) and a stop lever (73), a cylinder body of the movable air cylinder (72) is fixedly connected to the movable seat (712), a piston rod of the movable air cylinder (72) is fixedly connected to one end of the stop lever (73), the other end of the stop lever (73) is connected to the second electrode plate (74), and the movable air cylinder (72) is used for controlling the second electrode plate (74) to slide along the width direction of the workbench (1) so that the second electrode plate (74) abuts against the end part of the pipe fitting.

6. A pipe magnetizing apparatus according to claim 1, characterized in that: the periphery of the transmission roller (4) is provided with a limiting groove (42), and the limiting groove (42) is used for limiting the pipe.

7. A pipe magnetizing apparatus according to claim 6, characterized in that: the diameter of the conveying roller (4) increases with the approach of the supporting frame (3).

8. A pipe magnetizing apparatus according to claim 1, characterized in that: the pipe magnetizing equipment further comprises a lifting assembly (8), the lifting assembly (8) comprises a stand column (81), a driving air cylinder (83), a base body (87) and a rotating piece (88), the stand column (81) is fixedly connected to the ground, a cylinder body of the driving air cylinder (83) is connected to the stand column (81), a piston rod of the driving air cylinder (83) is connected to the lower end of the base body (87), the rotating piece (88) is connected to the upper end of the base body (87), and the rotating piece (88) is used for controlling pipe fitting rotation.

9. The pipe magnetizing apparatus of claim 8, wherein: the rotating piece (88) comprises a supporting rod (881) and rotating discs (882), the lower end of the supporting rod (881) is fixedly connected with a base body (87), the supporting rod (881) is provided with a connecting port (8811), the rotating discs (882) are fixedly connected with rotating columns (8821) coaxially, the rotating columns (8821) are rotationally connected with the inner wall of the connecting port (8811), the supporting rod (881) and the rotating discs (882) are provided with two rotating axes, the rotating axes of the two rotating discs (882) are parallel to each other and are parallel to the transmission direction of the pipe fitting, and the two rotating discs (882) are used for placing the pipe fitting and controlling the rotation of the pipe fitting.