CN210437995U

CN210437995U - Feeding device applied to magnetic particle flaw detector

Info

Publication number: CN210437995U
Application number: CN201921319600.9U
Authority: CN
Inventors: 蔡纪东; 徐亮
Original assignee: Wuxi Huaxin Petroleum Machine Co ltd
Current assignee: Wuxi Huaxin Petroleum Machine Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-05-01
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses a loading attachment applied to magnetic particle flaw detector, including the defectoscope, the conveyer belt of setting in the defectoscope and set up along the conveyer belt and along its length direction spacing roller two by two relative, still include the material platform that sets up in defectoscope one side, the support of setting on the material platform, set up on the support and with the reverse supporting beam of direction of feed, two are to setting up the stand between material platform and defectoscope, set up the material loading frame between coexistence post and articulate the striker door on the material loading frame lateral wall, the material loading frame is equipped with the feed inlet towards the lateral wall of material platform, the bottom wall of supporting beam is equipped with the material pushing assembly, be equipped with the drive assembly that drive supporting beam slided along the direction of feed on the support, be equipped with the lifting unit that drive material loading frame removed along its direction of height on the stand, the lateral wall of material loading frame is equipped with the start-stop assembly that drives the striker door to; this loading attachment replaces the manpower to place the work piece between clamping device, and labour saving and time saving has improved detection efficiency.

Description

Feeding device applied to magnetic particle flaw detector

Technical Field

The utility model relates to a technical field of defectoscope equipment, in particular to be applied to magnetic particle flaw detector's loading attachment.

Background

In the magnetic particle inspection, after a ferromagnetic material is magnetized, magnetic lines of force on the surface and near the surface of a workpiece are locally distorted due to discontinuity, so that a leakage magnetic field (i.e. a magnetic field formed when the magnetic lines of force leave and enter the surface) is generated to adsorb magnetic particles applied to the surface of the workpiece, and magnetic marks visible under proper illumination are formed, so that the position, the shape and the size of the discontinuity are displayed.

When adding tubular product, need detect a flaw detection to tubular product to guarantee the quality of the tubular product that dispatches from the factory, current magnetic particle flaw detector generally needs the staff to wait to detect the work piece and lifts, waits for work piece clamping device to be close to each other and cliies the work piece, but because it is the steel casting to wait to detect the work piece mostly, very heavy, it is very big to technical staff's physical demands when waiting for work piece clamping device to be close to, and need process hundreds of work pieces every day, greatly increased workman personnel's intensity of labour, reduced detection efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be applied to magnetic particle flaw detector's loading attachment, its advantage: this loading attachment replaces the manpower to place the work piece between clamping device, and labour saving and time saving has improved detection efficiency.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a feeding device applied to a magnetic particle flaw detector comprises the flaw detector, a conveying belt arranged in the flaw detector, limiting rollers which are arranged on the conveying belt and are opposite to each other in pairs along the length direction of the conveying belt, a material platform arranged on one side of the flaw detector in the feeding direction, a support arranged on the material platform, a supporting beam arranged on the support and in the direction opposite to the feeding direction, two upright posts arranged between the material platform and the flaw detector in an opposite way, a feeding frame arranged between the two upright posts and a material blocking door hinged on the side wall of the feeding frame facing the flaw detector, the side wall of the feeding frame facing the material platform is provided with a feeding hole, the bottom wall of the supporting beam is provided with a material pushing assembly, the support is provided with a driving assembly for driving the supporting beam to slide along the feeding direction, the stand column is provided with a lifting assembly for driving the feeding frame to move along the height direction of the lifting assembly, and the side wall of the feeding frame is provided with an opening and closing assembly for driving the material blocking door to open and close.

According to the technical scheme, the driving assembly is used for driving the supporting beam to move along the feeding direction, and then the pushing assembly can be used for pushing the workpiece into the feeding frame from the feeding opening; secondly, adjusting the feeding frame to a proper height through a lifting assembly; then the stop gate is opened through the opening and closing assembly, so that the angle between the stop gate and the feeding frame is adjusted to a proper position, a workpiece in the feeding frame can conveniently fall between the two limiting rollers, and the workpiece is finally fed; adopt the loading attachment that above-mentioned structure constitutes, replace the manual material loading of manpower, labour saving and time saving, greatly reduced staff's intensity of labour, improved detection efficiency.

The utility model discloses further set up to: the feeding frame comprises a 20866a section frame plate and a guide plate obliquely arranged between two opposite vertical end bottom walls of the section frame plate, wherein the length direction of a horizontal end of the section frame plate is opposite to the feeding direction, the material stop door is hinged to the section frame plate, the section frame plate faces the side wall of the machine tool body, the lower end of the guide plate faces the material stop door, the higher end of the guide plate faces the feeding hole, and an accommodating space for accommodating a workpiece is enclosed between the section frame plate and the material stop door.

By adopting the technical scheme, the 20866and the feeding frame consisting of the frame plates and the guide plates are convenient for moving a workpiece into the accommodating space through the feeding hole; the deflector that the slope set up, and the striker door is articulated with the lateral wall of material loading frame, moves down to the work piece in the accommodation space and plays the guide effect between two spacing rollers, and then has improved the material loading efficiency to the work piece.

The utility model discloses further set up to: the support includes two rows of two liang of relative settings at the montant of material platform roof and sets up between adjacent montant and with the feeding direction syntropy crossbeam.

Through the technical scheme, the support formed by combining the vertical rods and the cross beams can stably support the supporting beam, so that the stability of pushing the workpiece is improved; the setting of spout is convenient for drive a supporting beam and slides along the feeding direction.

The utility model discloses further set up to: the material pushing assembly comprises two opposite driving rods arranged on a first cylinder of the bottom wall of the supporting beam, a piston rod connected with the first cylinder, a push plate connected with the driving rods and used for pushing a workpiece, and a rubber pad coated on the outer wall of the push plate, wherein the extending direction of the first cylinder is in the same direction as the axial direction of the vertical rod.

Through the technical scheme, the first air cylinder is started, the driving rod moves downwards, and then the push plate can be moved to a position between two adjacent workpieces, so that the supporting beam can push the workpieces to move towards the direction of the feeding hole in the moving process, and the arrangement of the rubber pad can protect the outer walls of the workpieces, so that the workpieces can be stably pushed; when the feeding is not needed, the arrangement of the push plate plays a limiting role on the workpiece, the workpiece is prevented from rolling, and the feeding is facilitated.

The utility model discloses further set up to: two the roof of crossbeam all is equipped with the spout along its axial, drive assembly is including rotating the lead screw that sets up in the spout, with lead screw thread fit's slider nut and drive lead screw pivoted motor, it fixes respectively on the roof of two slider nuts to prop up diapire both ends of supporting beam.

Through above-mentioned technical scheme, starter motor because the spout plays limiting displacement to slider nut's removal, and then slider nut slides along the length direction of lead screw, becomes linear motion with rolling motion to drive the supporting beam and slide to the defectoscope direction, finally realized the push pedal and promoted the work piece to feed inlet department, the material loading of being convenient for.

The utility model discloses further set up to: the lifting assembly comprises second air cylinders respectively arranged on the top walls of the two stand columns and lifting blocks sliding in the lifting grooves, wherein one ends of the two lifting blocks extend out of the lifting grooves and are fixedly connected with 20866, two vertical ends of the frame plate are fixedly connected with the side walls, and piston rods of the second air cylinders extend into the lifting grooves and are fixedly connected with the top walls of the lifting blocks.

Through above-mentioned technical scheme, the piston rod that starts the second cylinder stretches out or contracts back and then can adjust the material loading frame to suitable height to in the work piece gets into accommodation space from the feed inlet, make things convenient for the work piece to roll to between two spacing rollers from deflector, striker door simultaneously, make things convenient for the material loading.

The utility model discloses further set up to: the opening and closing assembly comprises a third cylinder, a connecting rod and a guide block, wherein the third cylinder is arranged on back side walls of two vertical ends of the frame plate, the connecting rod is connected with a piston rod of the third cylinder, the guide block is hinged to the connecting rod, guide grooves in the same direction as the width direction of the stop gate are formed in two end walls of the stop gate, and the guide block slides in the guide grooves.

Through the technical scheme, the third air cylinder is started, when a piston rod of the third air cylinder extends out, the driving rod pushes one end, far away from the hinged end, of the material blocking door to move outwards, and in the moving process, the driving rod is hinged with the guide block and the driving rod, so that the guide block slides in the guide groove, the driving rod extends normally, the material blocking door can be opened, a workpiece can fall between the two limiting rollers conveniently, and feeding is achieved; otherwise, in the same way, the material blocking door is closed, so that the workpiece is conveniently pushed into the accommodating space, and the feeding efficiency is improved.

The utility model discloses further set up to: the material platform is characterized in that two opposite limiting plates in the same direction as the axial direction of the material platform are arranged on the top wall of the material platform, a connecting plate is arranged on the side wall of each limiting plate in an outwards extending mode, two opposite through holes are formed in the connecting plate, a plurality of threaded holes corresponding to the through holes are uniformly distributed in the top wall of the material platform along the width direction of the top wall of the material platform, and the top wall of the material platform is sequentially inserted into the through holes and the threaded holes through.

According to the technical scheme, the bolts are sequentially inserted into the through holes and the threaded holes from outside to inside, and the nuts are rotated, so that the limiting plate can be fixed on the material table, a limiting effect is achieved on a workpiece, and the stability of the workpiece on the material table is improved; and the threaded holes are arranged at equal intervals along the width direction of the material platform, so that the distance between the two limiting plates can be adjusted conveniently by working manpower, workpieces with different length and size can be placed conveniently, and the application range is wide.

To sum up, the utility model discloses following beneficial effect has:

1. firstly, a driving component is utilized to drive a supporting beam to move along the feeding direction, and then a workpiece can be pushed into a feeding frame from a feeding port through a pushing component; secondly, adjusting the feeding frame to a proper height through a lifting assembly; then the stop gate is opened through the opening and closing assembly, so that the angle between the stop gate and the feeding frame is adjusted to a proper position, a workpiece in the feeding frame can conveniently fall between the two limiting rollers, and the workpiece is finally fed; the feeding device with the structure replaces manual feeding by manpower, saves time and labor, greatly reduces the labor intensity of workers and improves the detection efficiency;

2. 20866A feeding frame composed of a frame plate and a guide plate is convenient for the workpiece to move into the accommodating space through the feeding hole; the guide plate is obliquely arranged, the material blocking door is hinged with the side wall of the feeding frame, and the guide plate plays a role in guiding the workpiece in the accommodating space to move downwards between the two limiting rollers, so that the feeding efficiency of the workpiece is improved;

3. and starting the third cylinder, when a piston rod of the third cylinder extends out, the driving rod pushes the material blocking door to be far away from the hinged end to move outwards, and the material blocking door is hinged with the guide block and the driving rod in the moving process, so that the guide block slides in the guide groove, the material blocking door can be opened, and a workpiece can conveniently fall between the two limiting rollers.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic structural view of a pusher assembly used in the present embodiment.

Fig. 3 is a schematic structural view for embodying the lifting assembly in the present embodiment.

Fig. 4 is a schematic structural view for embodying the opening and closing member in the present embodiment.

Reference numerals: 1. a flaw detector; 2. a conveyor belt; 3. a limiting roller; 4. a material platform; 5. a support; 51. a vertical rod; 52. a cross beam; 6. a support beam; 7. a column; 8. a feeding frame; 81. 20866a frame plate; 82. a guide plate; 9. a material blocking door; 10. a feed inlet; 11. a material pushing assembly; 111. a first cylinder; 112. a drive rod; 113. pushing the plate; 114. a rubber pad; 12. a drive assembly; 121. a screw rod; 122. a slider nut; 123. a motor; 13. a lifting assembly; 131. a second cylinder; 132. a lifting block; 14. an opening and closing assembly; 141. a third cylinder; 142. a connecting rod; 143. a guide block; 15. a chute; 16. a lifting groove; 17. a guide groove; 18. a limiting plate; 19. a connecting plate; 20. a through hole; 21. a threaded hole; 22. a bolt; 23. a nut; 24. an accommodation space.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

a loading device applied to a magnetic particle flaw detector refers to FIG. 1 and comprises a flaw detector 1, wherein a conveying belt 2 is arranged in the flaw detector 1, a plurality of limiting rollers 3 which are opposite in pairs are arranged on the conveying belt 2 at equal intervals along the length direction of the conveying belt, and two ends of the conveying belt 2 extend out of the flaw detector 1, so that workpieces can be loaded and unloaded conveniently, and the workpieces can be conveyed into the flaw detector 1 for flaw detection; spacing roller 3 is the rubber material, places the work piece and plays absorbing effect between two spacing rollers 3, and then plays the guard action to the work piece.

Referring to fig. 1 and 2, a material table 4 for placing a workpiece is arranged on one side of the flaw detector 1 in the feeding direction, the length direction of the material table 4 is the same as the feeding direction, a support 5 is arranged on the material table 4, a support beam 6 opposite to the feeding direction is arranged on the support 5, two opposite upright posts 7 are arranged between the material table 4 and the support 5, a feeding frame 8 is arranged between the two upright posts 7, a material blocking door 9 is hinged on the side wall of the feeding frame 8 facing the flaw detector 1, a feeding hole 10 is arranged on the side wall of the feeding frame 8 facing the material table 4, a material pushing assembly 11 for pushing the workpiece and a driving assembly 12 for driving the support beam 6 to slide along the feeding direction are arranged on the bottom wall of, the pushing assembly 11 is further driven to push the workpiece into the feeding frame 8, the upright post 7 is provided with a lifting assembly 13 for driving the feeding frame 8 to move up and down, and the side wall of the feeding frame 8 is provided with an opening and closing assembly 14 for driving the material blocking door 9 to open and close; firstly, a driving component 12 is utilized to drive a support beam 6 to move along the feeding direction, and then a workpiece can be pushed into a feeding frame 8 from a feeding hole 10 through a pushing component 11; secondly, the material loading frame 8 is adjusted to a proper height through the lifting component 13; then the material blocking door 9 is opened through the opening and closing assembly 14, so that the angle between the material blocking door 9 and the feeding frame 8 is adjusted to a proper position, the workpiece in the feeding frame 8 conveniently falls between the two limiting rollers 3, and the workpiece is finally fed; adopt the loading attachment that above-mentioned structure constitutes, replace the manual material loading of manpower, labour saving and time saving, greatly reduced staff's intensity of labour, improved detection efficiency.

Referring to fig. 2, the material table 4 is relatively provided with limiting plates 18 in the same direction as the feeding direction along the width direction, the side walls of the two limiting plates 18, which are far away from each other, extend outwards to form connecting plates 19, the connecting plates 19 are axially provided with two opposite through holes 20, the top wall of the material table 4 is provided with a plurality of threaded holes 21 at equal intervals along the width direction, bolts 22 are sequentially inserted into the through holes 20 and the threaded holes 21 from top to bottom and are in threaded connection with nuts 23, so that a limiting effect is achieved on a workpiece on the material table 4, and the stability of the workpiece on the material table 4 is improved; and the threaded holes 21 are arranged at equal intervals along the width direction of the material platform 4, so that the distance between the two limiting plates 18 can be adjusted conveniently by working manpower, workpieces with different length and size can be placed conveniently, and the application range is wide.

Referring to fig. 2, the support 5 includes two rows of vertical rods 51 arranged on the top wall of the material table 4 in a pairwise opposite manner, and beams 52 arranged between adjacent vertical rods 51 and in the same direction as the feeding direction, and the top walls of the two beams 52 are respectively provided with sliding grooves 15 for sliding at two ends of the bottom of the support beam 6 along the axial direction; the support 5 formed by combining the vertical rods 51 and the cross beams 52 can stably support the support beam 6, so that the stability of pushing the workpiece is improved; the sliding groove 15 is arranged to facilitate the driving of the supporting beam 6 to slide along the feeding direction.

Referring to fig. 2, the pushing assembly 11 includes two first cylinders 111 oppositely disposed on the bottom wall of the supporting beam 6, a driving rod 112 connected to a piston rod of the first cylinder 111, a pushing plate 113 connected to the driving rod 112 and used for pushing a workpiece, and a rubber pad 114 coated on an outer wall of the pushing plate 113, and an extending direction of the first cylinders 111 is in the same direction as an axial direction of the vertical rods 51; the first air cylinder 111 is started, the driving rod 112 moves downwards, and the push plate 113 can be moved to a position between two adjacent workpieces, so that the supporting beam 6 can push the workpieces to move towards the feed port 10 in the moving process, and the rubber pad 114 protects the outer walls of the workpieces and can stably push the workpieces; when the feeding is not needed, the arrangement of the push plate 113 plays a limiting role on the workpiece, and the workpiece is prevented from rolling.

Referring to fig. 2 and 3, the driving assembly 12 includes a screw rod 121 rotatably disposed in the chute 15, a slider nut 122 in threaded fit with the screw rod 121, and a motor 123 for driving the screw rod 121 to rotate, the axial direction of the screw rod 121 is the same as the feeding direction, and the bottom walls of the two ends of the supporting beam 6 are respectively connected with the two slider nuts 122; the motor 123 is started, the screw rod 121 rotates, the sliding groove 15 plays a limiting role in limiting the movement of the sliding block nut 122, the sliding block nut 122 slides along the length direction of the screw rod 121, the rolling motion is changed into linear motion, the supporting beam 6 is driven to slide towards the direction of the flaw detector 1 (shown in figure 1), and finally the workpiece is pushed to the feeding hole 10 by the pushing plate 113.

Referring to fig. 3 and 4, the feeding frame 8 comprises a 20866, a profile frame plate 81 and a guide plate 82, a 20866and a baffle plate which is obliquely arranged towards the ground and is arranged between the two opposite vertical end bottom walls of the profile frame plate 81, wherein the length direction of the horizontal end of the profile frame plate 81 is opposite to the feeding direction, a material blocking door 9 is hinged on the 20866, the profile frame plate 81 faces the side wall of the flaw detector 1 (fig. 1), the lower end of the guide plate faces the material blocking door 9, the height dimension of the material blocking door 9 is smaller than that of the 20866, and the height dimension of the profile frame plate 81 is smaller than that of the workpiece, so that when the material blocking door 9 is opened, the workpiece is guided to move; the higher end of the guide plate faces the feed inlet 10, and the guide plates 82, 20866;. the accommodating space 24 for placing workpieces is enclosed between the frame plate 81 and the material baffle door 9; the guide plate 82 is obliquely arranged, so that the workpiece in the accommodating space 24 is guided to move downwards between the two limiting rollers 3 (shown in figure 1), and the feeding efficiency of the workpiece is further improved.

Referring to fig. 3 and 4, the opposite side walls of the two uprights 7 are provided with lifting grooves 16 along the height direction thereof, the lifting assembly 13 comprises second cylinders 131 respectively fixed on the top walls of the two uprights 7 and lifting blocks 132 sliding in the lifting grooves 16, the two lifting blocks 132 are respectively fixed on 20866;, the two vertical ends of the profiled frame plate 81 are away from the side walls, the piston rods of the second cylinders 131 extend into the lifting grooves 16 and are fixedly connected with the top walls of the lifting blocks 132, and the extending direction of the piston rods of the second cylinders 131 is in the same direction as the height direction of the uprights 7; the piston rod of the second cylinder 131 is started to extend or retract, so that the feeding frame 8 can be adjusted to a proper height, a workpiece enters the accommodating space 24 from the feeding hole 10, and meanwhile, the workpiece rolls between the two limiting rollers 3 (shown in fig. 1) from the guide plate, and feeding is facilitated.

Referring to fig. 4, the opening and closing assembly 14 comprises a third cylinder 141 which is respectively arranged on the back side walls of two vertical ends of the frame plate 81 and slantly arranged towards the ground, a connecting rod 142 connected with the piston rod of the third cylinder 141, and a guide block 143 hinged with the connecting rod 142, wherein two end walls of the material blocking door 9 are provided with guide grooves 17 for the guide block 143 to slide along the length direction; the third air cylinder 141 is started, when a piston rod of the third air cylinder 141 extends out, the driving rod 112 pushes one end, far away from the hinged end, of the material blocking door 9 to move outwards, and in the moving process, the material blocking door 9 is hinged to the driving rod 112 through the guide block 143, so that the guide block 143 slides in the guide groove 17, the driving rod 112 can extend normally, the material blocking door 9 can be opened, a workpiece can fall between the two limiting rollers 3 (shown in fig. 1), and feeding is achieved; otherwise, in the same way, the material blocking door 9 is closed, so that the workpiece is conveniently pushed into the accommodating space 24, and the feeding efficiency is improved.

The working process is as follows: firstly, starting the motor 123, rotating the screw rod 121, and further moving the support beam 6 to a proper position; secondly, starting the first air cylinder 111, and further driving the push plate 113 to move between the two workpieces; then the screw rod 121 continues to rotate, and the support beam 6 slides towards the feeding direction, so that the push plate 113 pushes the workpiece from the feeding hole 10 into the accommodating space 24; then, the second air cylinder 131 is started, and the feeding frame 8 is adjusted to a proper height; and finally, the third cylinder 141 is started, the material stop gate 9 is opened to a certain angle through driving, then the workpiece in the accommodating space 24 rolls to the limiting roller 3 from the side wall of the material stop gate 9, and finally the workpiece is loaded.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a be applied to magnetic particle flaw detector's loading attachment, includes defectoscope (1), sets up conveyer belt (2) in defectoscope (1) and sets up along conveyer belt (2) on and along two liang of relative spacing rollers (3) of its length direction, its characterized in that: the device is characterized by further comprising a material platform (4) arranged on one side of the feeding direction of the flaw detector (1), a support (5) arranged on the material platform (4), a supporting beam (6) arranged on the support (5) and opposite to the feeding direction, two opposite stand columns (7) arranged between the material platform (4) and the flaw detector (1), a feeding frame (8) arranged between the two stand columns (7) and a material blocking door (9) hinged on the side wall of the feeding frame (8) facing the flaw detector (1), wherein a feeding hole (10) is formed in the side wall of the feeding frame (8) facing the material platform (4), a material pushing assembly (11) is arranged on the bottom wall of the supporting beam (6), a driving assembly (12) for driving the supporting beam (6) to slide along the feeding direction is arranged on the support (5), and a lifting assembly (13) for driving the feeding frame (8) to move along the height direction is arranged on the stand columns (7), the side wall of the feeding frame (8) is provided with an opening and closing assembly (14) for driving the material blocking door (9) to open and close.

2. The feeding device applied to the magnetic particle flaw detector of claim 1, characterized in that: the feeding frame (8) comprises a 20866a profile frame plate (81) and a guide plate (82) obliquely arranged between two opposite vertical end bottom walls of the profile frame plate (81), wherein the length direction of a horizontal end of the profile frame plate (81) is opposite to the feeding direction, the material blocking door (9) is hinged to the 20866a, the profile frame plate (81) faces to the side wall of the machine tool body, the lower end of the guide plate faces to the material blocking door (9), the higher end of the guide plate faces to the material inlet (10), and an accommodating space (24) for placing a workpiece is enclosed between the guide plate (82), the 20866and the material blocking door (9).

3. The feeding device applied to the magnetic particle flaw detector of claim 1, characterized in that: the support (5) comprises two rows of vertical rods (51) which are oppositely arranged on the top wall of the material platform (4) in pairs and cross beams (52) which are arranged between the adjacent vertical rods (51) and are in the same direction with the feeding direction.

4. The feeding device applied to the magnetic particle flaw detector of claim 3, characterized in that: the material pushing assembly (11) comprises two opposite driving rods (112) arranged on a first cylinder (111) on the bottom wall of the supporting beam (6) and connected with a piston rod of the first cylinder (111), a push plate (113) connected with the driving rods (112) and used for pushing a workpiece, and a rubber pad (114) coated on the outer wall of the push plate (113), wherein the extending direction of the first cylinder (111) is in the same direction as the axial direction of the vertical rod (51).

5. The feeding device applied to the magnetic particle flaw detector of claim 3, characterized in that: two the roof of crossbeam (52) all is equipped with spout (15) along its axial, drive assembly (12) including rotate lead screw (121) that set up in spout (15), with lead screw (121) screw-thread fit's slider nut (122) and drive lead screw (121) pivoted motor (123), the diapire both ends of a supporting beam (6) are fixed respectively on the roof of two slider nuts (122).

6. The feeding device applied to the magnetic particle flaw detector of claim 1, characterized in that: the lifting assembly (13) comprises second cylinders (131) respectively arranged on the top walls of the two upright columns (7) and lifting blocks (132) sliding in the lifting grooves (16), one ends of the lifting blocks (132) extend out of the lifting grooves (16) and are fixedly connected with the side walls deviating from the two vertical ends of the sectional frame plate (81), and piston rods of the second cylinders (131) extend into the lifting grooves (16) and are fixedly connected with the top walls of the lifting blocks (132).

7. The feeding device applied to the magnetic particle flaw detector of claim 2, characterized in that: the opening and closing assembly (14) comprises third air cylinders (141) which are arranged on back side walls of two vertical ends of a profile frame plate (81) and obliquely face the ground, connecting rods (142) connected with piston rods of the third air cylinders (141) and guide blocks (143) hinged with the connecting rods (142), guide grooves (17) which are in the same direction with the width direction of the material blocking door (9) are formed in two end walls of the material blocking door, and the guide blocks (143) slide in the guide grooves (17).

8. The feeding device applied to the magnetic particle flaw detector of claim 1, characterized in that: the roof of material platform (4) is two relative be equipped with rather than limiting plate (18) of axial syntropy, the outside extension of lateral wall of limiting plate (18) is equipped with connecting plate (19), be equipped with two relative through-hole (20) on connecting plate (19), the roof of material platform (4) is equipped with a plurality of screw holes (21) corresponding with through-hole (20) along its width direction equipartition, insert in through-hole (20), screw hole (21) in proper order through bolt (22) and with nut (23) threaded connection.