A conveniently adjustable and fixed support device for magnetic particle flaw detector and a support method thereof

Abstract

The present invention relates to the technical field of magnetic particle flaw detectors, and discloses a support device for a magnetic particle flaw detector that is convenient to adjust and fix, and a support method thereof, comprising a main body and a slide plate, wherein the slide plate is fixedly connected to the rear wall of the main body, and further comprising a moving mechanism, wherein the moving mechanism is arranged on the top of the slide plate, the slide plate is slidably connected to a sliding frame, the top of the sliding frame close to the main body is fixedly connected to a moving frame, the side of the moving frame away from the main body is fixedly connected to an extension frame, and the top of the extension frame is fixedly connected to a slide frame. The present invention replaces the method of adjusting the fixed support device to the same length as the tubular workpiece to clamp and fix the two ends of the tubular workpiece by pulling the tubular workpiece to move through the annular spray frame for powder spraying test, thereby avoiding the difficulty of supporting and fixing the longer tubular workpiece due to the limited adjustable length of the fixed support device when the length of the tubular workpiece is longer, thereby avoiding affecting the magnetic particle flaw detection of the damaged part on the surface of the tubular workpiece.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic particle flaw detectors, and in particular to a supporting device for a magnetic particle flaw detector which is convenient to adjust and fix, and a supporting method thereof. Background Art

[0002] The magnetic particle flaw detector uses the fact that after the ferromagnetic material is magnetized, due to the existence of discontinuities, the magnetic lines of force on the surface and near the surface of the workpiece are locally distorted, generating a leakage magnetic field that adsorbs the magnetic powder applied to the surface of the workpiece, forming magnetic marks that are visually visible under appropriate lighting, thereby showing the location, shape and size of the discontinuity.

[0003] When performing magnetic particle inspection on tubular workpieces, most of the time, the fixed support device is directly adjusted to the same length as the tubular workpiece, so as to clamp the two ends of the tubular workpiece, and then magnetic powder is sprinkled on the surface of the workpiece to detect damage on the tubular surface. When the length of the tubular workpiece is long, the adjustable length of the fixed support device is limited, so it is difficult to support and fix the long tubular workpiece, which in turn affects the detection of damaged parts on the surface of the tubular workpiece, and the practicality is low. Summary of the invention

[0004] The object of the present invention is to provide a supporting device for a magnetic particle flaw detector that is convenient to adjust and fix, and a supporting method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a support device for a magnetic particle flaw detector that is convenient to adjust and fix, and a support method thereof, comprising a main body and a slide plate, wherein the slide plate is fixedly connected to the rear wall of the main body, and further comprising:

[0007] The moving mechanism is arranged on the top of the slide, the slide is slidably connected to the sliding frame, the top of the sliding frame is fixedly connected to the moving frame at one end close to the main body, the side of the moving frame away from the main body is fixedly connected to the extension frame, the top of the extension frame is fixedly connected to the slide frame, and the side of the slide frame close to the main body is fixedly connected to the lifting slide;

[0008] The connecting mechanism is arranged inside the slide frame, and the connecting mechanism includes two extrusion sliding frames. The two extrusion sliding frames are both slidably connected to the side of the slide frame close to the main body, and the side of the extrusion sliding frame away from the slide frame is rotatably connected to a lifting push strip, and a lifting support column is rotatably connected between the two lifting push strips, and a connecting plug is fixedly connected to the side of the lifting support column close to the main body.

[0009] Furthermore, an entrance is provided on a side of the main body away from the slide plate, a cleaning port is provided on the side of the main body that is the same as the entrance, the main body is connected front to back, and a through hole is provided on the top of the main body.

[0010] Furthermore, a powder sprinkling mechanism is provided inside the main body, and the powder sprinkling mechanism includes an annular spray frame, which is fixedly connected to one end of the main body near the slide board, the left and right sides of the main body are fixedly connected with feed ports, the feed ports are externally connected with input pipes, a plurality of spray heads are fixedly connected to the inner circle of the annular spray frame, the left and right inner walls of the main body are fixedly connected with pulley frames, a plurality of rollers are provided on the pulley frames, the left and right inner walls of the main body near the slide board are fixedly connected with end follower roller frames, and the annular spray frame is arranged between the end follower roller frame and the pulley frame.

[0011] Furthermore, the moving mechanism also includes two pushing hydraulic cylinders, which are respectively fixedly connected to the left and right sides of the main body, and the output ends of the pushing hydraulic cylinders are fixedly connected to the left and right sides of the moving frame. A motor is fixedly connected to the top of the sliding frame, and a transmission gear is fixedly connected to the output end of the motor.

[0012] Furthermore, the connecting mechanism also includes a lower rack, which is fixedly connected to the bottom of one of the extrusion sliding frames, and an upper rack is fixedly connected to the bottom of an extrusion sliding frame away from the lower rack. The transmission gear at the output end of the motor is meshed with the upper rack and the lower rack. The lifting support column is slidably connected to the inner wall of the lifting slide. A sliding hole is opened through the rear wall of the connecting cylinder, and a plurality of shrinking holes are opened on the outer wall of the connecting cylinder. A shelf is fixedly connected to the central axis of the inner wall of the shrinking hole, and a connecting rotating rack is fixedly connected to the inner wall of the connecting cylinder.

[0013] Furthermore, a fixing mechanism is provided inside the connecting plug, and the fixing mechanism includes two movable push strips, which are rotatably connected to the outer walls of the two extrusion sliding frames respectively, and the ends of the two movable push strips away from the extrusion sliding frames are rotatably connected to the connecting push frame, a sliding rod is fixedly connected to the front center of the connecting push frame, the sliding rod is slidably connected to the inside of the sliding hole, and a plurality of rotating push frames are fixedly connected to one end of the outer wall of the sliding rod away from the connecting push frame, and the right ends of the plurality of rotating push frames away from the sliding rod are rotatably connected to a movable connecting frame, and the end of the movable connecting frame away from the rotating push frame is slidably connected to the right inner wall of the shrinking hole, and the right inner wall of the shrinking hole is slidably connected to a sliding push strip, the sliding push strip is rotatably connected to the movable connecting frame, and the end of the sliding push strip away from the movable connecting frame is fixedly connected to a fixed block, and the fixed block is embedded with the shelf.

[0014] Furthermore, a side of the fixed block away from the sliding push strip is rotatably connected to a rear push strip, an end of the rear push strip away from the fixed block is rotatably connected to a rear movable frame, the right side of the rear push strip is slidably connected to the right inner wall of the shrinkage hole, the left side of the rear movable frame is slidably connected to the left inner wall of the shrinkage hole, and multiple rear movable frames are rotatably connected to a rear push plate at one end away from the rear push strip, and the rear push plate is arranged inside the connecting plug.

[0015] Furthermore, a left front push rod is fixedly connected to the side opposite to the rear push plate, and the two left front push rods are cross-distributed; a right front push rod is fixedly connected to the side opposite to the rear push plate, and the two right front push rods are cross-distributed; two strip hole bars are rotatably connected to the center of the connecting rotating frame, and the two strip hole bars are cross-distributed up and down inside the connecting rotating frame; the upper strip hole bar is slidably connected to the top of the two left front push rods, and the lower strip hole bar is slidably connected to the bottom of the two right front push rods.

[0016] A support device for a magnetic particle flaw detector that is convenient to adjust and fix and a support method thereof, comprising the following steps:

[0017] S1: The motor drives the lower rack and the upper rack to move relative to each other, thereby driving the two extrusion slide frames to slide relative to each other inside the slide frame. By squeezing the two ends of the lifting push bar, the lifting support column is driven to slide upward inside the lifting slide frame, so that the connecting plug can be adjusted to a point corresponding to the center of the tubular workpiece;

[0018] S2: When the lifting support column drives the connecting plug to rise to the center of the tubular workpiece, the sliding rod is driven to push into the connecting plug by moving the push bar, so that the height of the fixed block rises to the same height as the height of the lifting support column. When all the fixed blocks are against the inner wall of the tubular workpiece, the connecting plug is exactly in the center of the workpiece.

[0019] S3: The sliding rod pushes the multiple rotating push racks to move, and simultaneously pushes the right front push rod and the left front push rod on the sliding rod to move, thereby pushing the sliding rod at the top of the left front push rod and the sliding rod at the bottom of the right front push rod to cross-rotate on the connecting rotating bar rack. At the same time, the two bar-shaped hole bars slide with the right front push rod and the left front push rod respectively while rotating, thereby driving the rear push plate to move in the opposite direction of the sliding rod. Similarly, the fixed block is driven upward from the other side of the fixed block through the multiple rear movable racks and the rear push bars to support and fix the inner wall of the tubular workpiece;

[0020] S4: The hydraulic cylinder is pushed to push the sliding frame and the moving frame to slide on the slide plate, so that the tubular workpiece connected to the outer wall of the connecting plug-in cylinder is driven to move synchronously with the connecting plug-in cylinder through the connection between the lifting support column and the lifting slide frame. During the movement of the tubular workpiece, the tubular workpiece slides on the two sets of pulley frames and the end follower roller frame, so that the tubular workpiece passes through the annular spray frame, and the magnetic powder used for testing is adsorbed on the outer wall of the tubular workpiece through the spray head, so as to detect the damage on the surface of the workpiece.

[0021] The present invention has the following beneficial effects:

[0022] After the tubular workpiece is sleeved on the outer wall of the connecting plug tube and supported and fixed, the sliding frame and the moving frame are pushed on the slide plate by pushing the hydraulic cylinder, thereby driving the tubular workpiece connected to the outer wall of the connecting plug tube to move synchronously with the connecting plug tube through the connection between the lifting support column and the lifting slide. During the movement of the tubular workpiece, the tubular workpiece is made to slide on the two sets of pulley frames and the end follower roller frame, so that the tubular workpiece passes through the annular spray frame, and the magnetic powder for testing is adsorbed on the outer wall of the tubular workpiece through the spray head, so as to detect the damage on the surface of the workpiece. The method of pulling the tubular workpiece to move through the annular spray frame for powder spraying test replaces the method of adjusting the fixed support device to the same length as the tubular workpiece to clamp and fix the two ends of the tubular workpiece, so as to avoid the difficulty in supporting and fixing the longer tubular workpiece due to the limited adjustable length of the fixed support device when the length of the tubular workpiece is long, thereby avoiding affecting the magnetic particle flaw detection of the damaged part on the surface of the tubular workpiece.

[0023] After the tubular workpiece is sleeved on the outer wall of the connecting plug tube, the lower rack and the upper rack are driven by a motor to move relative to each other, thereby driving the two extrusion sliding frames to slide relative to each other inside the slide slot frame, and by squeezing the two ends of the lifting and pushing strip, the lifting support column is driven to slide upward inside the lifting and sliding frame, so that the connecting plug tube can be adjusted to a point corresponding to the center of the tubular workpiece, so that the device can automatically support and fix tubular workpieces of all sizes smaller than the diameter of the annular spray frame, thereby improving the practicability of the device.

[0024] The two extrusion sliding frames of the present invention slide relatively inside the slide slot frame, and cooperate with the two lifting push bars to drive the lifting support column to rise inside the lifting slide frame, which will drive one end of the two moving push bars to move relatively, and the two moving push bars are connected to the rotation of the connecting push frame away from one end of the extrusion sliding frame, so as to drive the slide bar to slide inside the slide hole, thereby pushing the multiple groups of rotating push frames to slide inside the connecting plug cylinder, and pushing the multiple active connecting frames and the multiple sliding push bars to slide inside the multiple shrinking holes respectively, so as to push the fixed block to rise and press against the inner wall of the tubular workpiece, and clamp the tubular workpiece sleeved on the outer wall of the connecting plug cylinder through the multiple fixed blocks and the inner wall of the tubular workpiece. The lifting and lowering support column can be used to lift the connecting tube to the center of the tubular workpiece, and the lifting and lowering support column can be used to lift the connecting tube to the center of the tubular workpiece, thereby improving the convenience of the device during use, and can quickly support and fix the tubular workpiece, thereby improving the efficiency of flaw detection of tubular workpieces.

[0025] The sliding rod of the present invention pushes the right front pushing rod and the left front pushing rod on the sliding rod to move simultaneously during the movement of the multiple rotating pushing racks, thereby pushing the sliding rod at the top of the left front pushing rod and the sliding rod at the bottom of the right front pushing rod to cross-rotate on the connecting rotating bar rack. At the same time, the two bar hole bars respectively slide with the right front pushing rod and the left front pushing rod while rotating, thereby driving the rear pushing plate to move in the opposite direction of the sliding rod. Similarly, the multiple rear movable racks and the rear pushing bars drive the fixed block to be pushed upward from the other side of the fixed block, so as to support and fix the inner wall of the tubular workpiece, and enable the fixed block to keep rising vertically. The stability of the fixed block when supporting the tubular workpiece is improved by the force supporting the fixed block from both sides.

[0026] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is an overall cross-sectional view of the present invention;

[0030] Figure 3 It is a schematic diagram of the main structure of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure of the mobile mechanism of the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of the connecting mechanism of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the fixing mechanism of the present invention;

[0034] Figure 7 for Figure 3 Enlarged view of point A in the middle;

[0035] Figure 8 for Figure 6 Enlarged view of point B in the middle;

[0036] Fig. 9 Figure 2 is a diagram of the method of the present invention.

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] In the figure: 1, main body; 101, slide plate; 102, entrance; 103, cleaning port; 2, powder spraying mechanism; 201, annular spray rack; 202, feed port; 203, spray head; 204, pulley rack; 205, end follower roller rack; 3, moving mechanism; 301, sliding rack; 302, pushing hydraulic cylinder; 303, motor; 304, moving rack; 305, extension rack; 306, slide rack; 307, lifting slide rack; 4, connecting mechanism; 401, lifting support column; 402, extrusion sliding rack; 403, lower Rack; 404, upper rack; 405, connecting plug; 406, sliding hole; 407, shrinking hole; 408, shelf; 409, connecting rotating rack; 410, lifting push strip; 5, fixing mechanism; 501, moving push strip; 502, connecting push frame; 503, sliding rod; 504, rotating push frame; 505, movable connecting frame; 506, sliding push strip; 507, fixing block; 508, rear push strip; 509, rear movable frame; 510, rear push plate; 511, right front push rod; 512, left front push rod; 513, strip hole strip. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1, please refer to Figure 1-Figure 9 As shown, the present invention is a support device for a magnetic particle flaw detector that is convenient to adjust and fix, and a support method thereof, comprising a main body 1 and a slide plate 101, wherein the slide plate 101 is fixedly connected to the rear wall of the main body 1, and further comprising:

[0041] The moving mechanism 3 is arranged on the top of the slide 101. The slide 101 is slidably connected to a sliding frame 301. The top of the sliding frame 301 is fixedly connected to a moving frame 304 at one end close to the main body 1. The side of the moving frame 304 away from the main body 1 is fixedly connected to an extension frame 305. The top of the extension frame 305 is fixedly connected to a slide frame 306. The side of the slide frame 306 close to the main body 1 is fixedly connected to a lifting slide 307. The moving mechanism 3 also includes two pushing hydraulic cylinders 302. The two pushing hydraulic cylinders 302 are respectively fixedly connected to the left and right sides of the main body 1. On the right side, the output end of the hydraulic cylinder 302 is fixedly connected to the left and right sides of the moving frame 304, the top of the sliding frame 301 is fixedly connected to the motor 303, and the output end of the motor 303 is fixedly connected to the transmission gear. After the tubular workpiece is sleeved on the outer wall of the connecting plug 405 for support and fixation, the sliding frame 301 and the moving frame 304 are pushed on the slide plate 101 by pushing the hydraulic cylinder 302, so that the tubular workpiece connected to the outer wall of the connecting plug 405 is driven to move synchronously with the connecting plug 405 through the connection between the lifting support column 401 and the lifting slide 307;

[0042] The connecting mechanism 4 is arranged inside the slide frame 306, and the connecting mechanism 4 includes two extrusion sliding frames 402, and the two extrusion sliding frames 402 are both slidably connected to the side of the slide frame 306 close to the main body 1, and the side of the extrusion sliding frame 402 away from the slide frame 306 is rotatably connected with a lifting push strip 410, and a lifting support column 401 is rotatably connected between the two lifting push strips 410, and a connecting plug 405 is fixedly connected to the side of the lifting support column 401 close to the main body 1. The connecting mechanism 4 also includes a lower rack 403, and the lower rack 403 is fixedly connected to the bottom of one of the extrusion sliding frames 402, and an upper rack 404 is fixedly connected to the bottom of an extrusion sliding frame 402 away from the lower rack 403. The transmission gear at the output end of the motor 303 is meshed with the upper rack 404 and the lower rack 403, the lifting support column 401 is slidably connected to the inner wall of the lifting slide 307, and the rear wall of the connecting plug 405 penetrates A sliding hole 406 is penetrated, and a plurality of shrinking holes 407 are opened on the outer wall of the connecting plug tube 405. A shelf 408 is fixedly connected to the central axis of the inner wall of the shrinking hole 407, and a connecting rotating rack 409 is fixedly connected to the inner wall of the connecting plug tube 405. After the tubular workpiece is sleeved on the outer wall of the connecting plug tube 405, the lower rack 403 and the upper rack 404 are driven by the motor 303 to move relative to each other, thereby driving the two extrusion sliding racks 402 to slide relative to each other inside the slide slot rack 306, and by squeezing the two ends of the lifting push strip 410, the lifting support column 401 is driven to slide upward inside the lifting slide 307, so that the connecting plug tube 405 can be adjusted to a point corresponding to the center of the tubular workpiece, and the two extrusion sliding racks 402 slide relative to each other inside the slide slot rack 306, and when the lifting support column 401 is driven to rise inside the lifting slide 307 in cooperation with the two lifting push strips 410, one end of the two moving push strips 501 will be driven to move relative to each other;

[0043] An inlet 102 is provided on one side of the main body 1 away from the slide plate 101, and a cleaning port 103 is provided on the same side of the main body 1 as the inlet 102. The main body 1 is connected from front to back, and a through hole is provided on the top of the main body 1;

[0044] The main body 1 is provided with a powder sprinkling mechanism 2, which includes an annular spray frame 201, which is fixedly connected to one end of the main body 1 near the slide 101, and the left and right sides of the main body 1 are fixedly connected with a feed port 202, and the feed port 202 is externally connected with an input pipe, and the inner ring of the annular spray frame 201 is fixedly connected with a plurality of spray heads 203, and the inner walls of the left and right sides of the main body 1 are fixedly connected with a pulley frame 204, and a plurality of rollers are arranged on the pulley frame 204, and the left and right sides of the main body 1 are fixedly connected with a plurality of rollers. The end of the side and right inner walls close to the slide 101 are fixedly connected with the end follower roller frame 205, and the annular spray frame 201 is arranged between the end follower roller frame 205 and the pulley frame 204. During the movement of the tubular workpiece, the tubular workpiece slides on the two groups of pulley frames 204 and the end follower roller frame 205, so that the tubular workpiece passes through the annular spray frame 201, and the magnetic powder for testing is adsorbed on the outer wall of the tubular workpiece through the spray head 203, so as to detect the damage on the surface of the workpiece;

[0045] A fixing mechanism 5 is provided inside the connecting plug 405, and the fixing mechanism 5 includes two movable push strips 501, and the two movable push strips 501 are respectively rotatably connected to the outer walls of the two extrusion sliding frames 402, and the ends of the two movable push strips 501 away from the extrusion sliding frame 402 are rotatably connected to the connecting push frame 502, and the front center of the connecting push frame 502 is fixedly connected with a slide rod 503, and the slide rod 503 is slidably connected to the inside of the slide hole 406, and the end of the outer wall of the slide rod 503 away from the connecting push frame 502 is fixedly connected to a plurality of rotating push frames 504, and the ends of the right sides of the plurality of rotating push frames 504 away from the slide rod 503 are all rotatably connected to a movable connecting frame 505, and the end of the movable connecting frame 505 away from the rotating push frame 504 is slidably connected to the right inner wall of the shrinkage hole 407 The right inner wall of the shrink hole 407 is slidably connected with a sliding push strip 506, and the sliding push strip 506 is rotatably connected with the movable connecting frame 505. The end of the sliding push strip 506 away from the movable connecting frame 505 is fixedly connected with a fixed block 507, and the fixed block 507 is engaged with the shelf 408. The side of the fixed block 507 away from the sliding push strip 506 is rotatably connected with a rear push strip 508, and the end of the rear push strip 508 away from the fixed block 507 is rotatably connected with a rear movable frame 509, the right side of the rear push strip 508 is slidably connected to the right inner wall of the shrink hole 407, and the left side of the rear movable frame 509 is slidably connected to the left inner wall of the shrink hole 407, and the end of the multiple rear movable frames 509 away from the rear push strip 508 is rotatably connected with a rear push plate 510, and the rear push plate 510 is arranged on the connecting plug 4 05, the side of the slide bar 503 opposite to the rear push plate 510 is fixedly connected with a left front push rod 512, and the two left front push rods 512 are cross-distributed, and the side of the slide bar 503 opposite to the rear push plate 510 is fixedly connected with a right front push rod 511, and the two right front push rods 511 are cross-distributed, and the center of the connecting rotating frame 409 is rotatably connected with two strip hole bars 513, and the two strip hole bars 513 are cross-distributed up and down inside the connecting rotating frame 409, and the upper strip hole bar 513 is slidably connected to the top of the two left front push rods 512, and the lower strip hole bar 513 is slidably connected to the bottom of the two right front push rods 511, and the two moving push bars 501 are connected to the rotation of the connecting push frame 502 away from one end of the extrusion slide frame 402, driving the slide bar 503 slides inside the sliding hole 406, thereby pushing the multiple groups of rotating push frames 504 to slide inside the connecting plug tube 405, pushing the multiple active connecting frames 505 and the multiple sliding push strips 506 to slide inside the multiple shrinking holes 407 respectively, thereby pushing the fixed block 507 to rise and press against the inner wall of the tubular workpiece, and clamping and fixing the tubular workpiece sleeved on the outer wall of the connecting plug tube 405 through the multiple fixed blocks 507 and the inner wall of the tubular workpiece. During the movement of the multiple rotating push frames 504, the sliding rod 503 pushes the right front push rod 511 and the left front push rod 512 on the sliding rod 503 to move at the same time, thereby pushing the sliding rod 503 at the top of the left front push rod 512 and the sliding rod 503 at the bottom of the right front push rod 511 to cross-rotate on the connecting rotating bar frame 409.At the same time, the two bar-shaped hole bars 513 slide with the right front push rod 511 and the left front push rod 512 respectively while rotating, thereby driving the rear push plate 510 to move in the opposite direction of the slide rod 503. Similarly, the fixed block 507 is pushed upward from the other side of the fixed block 507 through the multiple rear movable frames 509 and the rear push bars 508, supporting and fixing the inner wall of the tubular workpiece, and keeping the fixed block 507 vertically rising.

[0046] When in use, after the tubular workpiece is sleeved on the outer wall support of the connecting plug tube 405 and fixed, the sliding frame 301 and the moving frame 304 are pushed to slide on the slide plate 101 by pushing the hydraulic cylinder 302, so that the tubular workpiece connected to the outer wall of the connecting plug tube 405 is driven to move synchronously with the connecting plug tube 405 through the connection between the lifting support column 401 and the lifting slide 307. In the process of the movement of the tubular workpiece, the tubular workpiece slides on the two sets of pulley frames 204 and the end follower roller frame 205, so that the tubular workpiece passes through the annular spray frame 201, and the magnetic powder for test is adsorbed on the outer wall of the tubular workpiece through the spray head 203, so as to detect the damage on the surface of the workpiece. The method of pulling the tubular workpiece to move through the annular spray frame 201 for powder spraying test replaces the method of adjusting the fixed support device to the same length as the tubular workpiece to clamp and fix the two ends of the tubular workpiece.

[0047] Example 2, please refer to Figure 1-Figure 9 As shown, when in use, after the tubular workpiece is sleeved on the outer wall of the connecting insert 405, the motor 303 drives the lower rack 403 and the upper rack 404 to move relative to each other, thereby driving the two extrusion slide frames 402 to slide relative to each other inside the slide slot frame 306, and by squeezing the two ends of the lifting push bar 410, the lifting support column 401 is driven to slide upward inside the lifting slide 307, so that the connecting insert 405 can be adjusted to a point corresponding to the center of the tubular workpiece, so that the device can automatically support and fix tubular workpieces of all sizes smaller than the diameter of the annular spray frame 201;

[0048] The two extrusion sliding frames 402 slide relatively in the slide slot frame 306, and cooperate with the two lifting push strips 410 to drive the lifting support column 401 to rise in the lifting slide 307, which will drive one end of the two moving push strips 501 to move relatively. Through the rotation connection between the two moving push strips 501 and the connecting push frame 502 away from one end of the extrusion sliding frame 402, the slide rod 503 is driven to slide in the slide hole 406, thereby pushing the multiple groups of rotating push frames 504 to slide in the connecting plug cylinder 405, and pushing the multiple active connecting frames 505 and the multiple sliding push strips 506 to slide in the multiple shrinkage holes 407 respectively, thereby pushing the fixed block 507 to rise and press against the inner wall of the tubular workpiece. The fixed block 507 and the inner wall of the tubular workpiece clamp and fix the tubular workpiece that is sleeved on the outer wall of the connecting plug 405. After the tubular workpiece is sleeved on the outer wall of the connecting plug 405, as the lifting support column 401 drives the connecting plug 405 to rise to the center of the tubular workpiece, the sliding bar 503 is driven into the inside of the connecting plug 405 by moving the push bar 501, so that the height of the fixed block 507 rises to correspond to the height of the rise of the lifting support column 401. Therefore, when multiple fixed blocks 507 are all against the inner wall of the tubular workpiece, the connecting plug 405 is exactly in the center of the workpiece. Therefore, when the device is used, there is no need to adjust the height of the connecting plug 405 in advance.

[0049] The two strip hole bars 513 slide with the right front push bar 511 and the left front push bar 512 respectively while rotating, thereby driving the rear push plate 510 to move in the opposite direction of the slide bar 503. Similarly, the fixed block 507 is driven upward from the other side of the fixed block 507 through the multiple rear movable frames 509 and the rear push bars 508 to support and fix the inner wall of the tubular workpiece, and the fixed block 507 can be kept rising vertically. The stability of the fixed block 507 when supporting the tubular workpiece is improved by the force supporting the fixed block 507 from both sides.

[0050] A support device for a magnetic particle flaw detector that is convenient to adjust and fix and a support method thereof, comprising the following steps:

[0051] S1: The motor 303 drives the lower rack 403 and the upper rack 404 to move relative to each other, thereby driving the two extrusion slide frames 402 to slide relative to each other inside the slide frame 306, and by squeezing the two ends of the lifting push bar 410, the lifting support column 401 is driven to slide upward inside the lifting slide frame 307, so that the connecting plug 405 can be adjusted to a position corresponding to the center of the tubular workpiece;

[0052] S2: When the lifting support column 401 drives the connecting plug 405 to rise to the center of the tubular workpiece, the sliding bar 503 is driven to push into the connecting plug 405 by moving the push bar 501, so that the height of the fixed block 507 rises to correspond to the height of the lifting support column 401. Therefore, when all the fixed blocks 507 are against the inner wall of the tubular workpiece, the connecting plug 405 is exactly in the center of the workpiece;

[0053] S3: The slide bar 503 pushes the right front push bar 511 and the left front push bar 512 on the slide bar 503 to move simultaneously during the movement of the multiple rotating push frames 504, thereby pushing the slide bar 503 on the top of the left front push bar 512 and the slide bar 503 on the bottom of the right front push bar 511 to cross-rotate on the connecting rotating bar frame 409. At the same time, the two bar-shaped hole bars 513 slide with the right front push bar 511 and the left front push bar 512 respectively while rotating, thereby driving the rear push plate 510 to move in the opposite direction of the slide bar 503. Similarly, the fixed block 507 is driven upward from the other side of the fixed block 507 through the multiple rear movable frames 509 and the rear push bars 508 to support and fix the inner wall of the tubular workpiece;

[0054] S4: The hydraulic cylinder 302 is pushed to push the sliding frame 301 and the moving frame 304 to slide on the slide plate 101, so that the tubular workpiece connected to the outer wall of the connecting plug 405 is driven to move synchronously with the connecting plug 405 through the connection between the lifting support column 401 and the lifting slide 307. During the movement of the tubular workpiece, the tubular workpiece slides on the two sets of pulley frames 204 and the end follower roller frame 205, so that the tubular workpiece passes through the annular spray frame 201, and the magnetic powder for testing is adsorbed on the outer wall of the tubular workpiece through the spray head 203, so as to detect the damage on the surface of the workpiece.

[0055] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A support device for a magnetic particle flaw detector that is convenient to adjust and fix, comprising a main body (1) and a slide plate (101), wherein the slide plate (101) is fixedly connected to the rear wall of the main body (1), characterized in that: Also includes: A moving mechanism (3), wherein the moving mechanism (3) is arranged on the top of the slide plate (101), the slide plate (101) is slidably connected to a sliding frame (301), the top of the sliding frame (301) is fixedly connected to an end of the moving frame (304) close to the main body (1), the side of the moving frame (304) away from the main body (1) is fixedly connected to an extension frame (305), the top of the extension frame (305) is fixedly connected to a slide groove frame (306), and the side of the slide groove frame (306) close to the main body (1) is fixedly connected to a lifting slide frame (307); A connecting mechanism (4), the connecting mechanism (4) being arranged inside the slide slot frame (306), the connecting mechanism (4) comprising two extrusion sliding frames (402), the two extrusion sliding frames (402) being slidably connected to a side of the slide slot frame (306) close to the main body (1), the side of the extrusion sliding frame (402) away from the slide slot frame (306) being rotatably connected to a lifting push bar (410), a lifting support column (401) being rotatably connected between the two lifting push bars (410), and a connecting plug (405) being fixedly connected to a side of the lifting support column (401) close to the main body (1); The moving mechanism (3) further comprises two pushing hydraulic cylinders (302), the two pushing hydraulic cylinders (302) being fixedly connected to the left and right sides of the main body (1), respectively; the output ends of the pushing hydraulic cylinders (302) are fixedly connected to the left and right sides of the moving frame (304); the top of the sliding frame (301) is fixedly connected to a motor (303); the output end of the motor (303) is fixedly connected to a transmission gear; The connecting mechanism (4) further comprises a lower rack (403), wherein the lower rack (403) is fixedly connected to the bottom of one of the extrusion slide frames (402); an upper rack (404) is fixedly connected to the bottom of an extrusion slide frame (402) away from the lower rack (403); a transmission gear at the output end of the motor (303) meshes with the upper rack (404) and the lower rack (403); the lifting support column (401) is slidably connected to the inner wall of the lifting slide frame (307); a sliding hole (406) is formed through the rear wall of the connecting plug cylinder (405); a plurality of shrinking holes (407) are formed on the outer wall of the connecting plug cylinder (405); a shelf (408) is fixedly connected to the central axis of the inner wall of the shrinking hole (407); and a connecting rotating rack (409) is fixedly connected to the inner wall of the connecting plug cylinder (405).

2. The support device for a magnetic particle flaw detector that is convenient to adjust and fix according to claim 1 is characterized in that: An entrance (102) is provided on a side of the main body (1) away from the slide plate (101), a cleaning port (103) is provided on the same side of the main body (1) as the entrance (102), the main body (1) is connected front to back, and a through hole is provided on the top of the main body (1).

3. The support device for a magnetic particle flaw detector that is convenient to adjust and fix according to claim 2 is characterized in that: A powder sprinkling mechanism (2) is arranged inside the main body (1), and the powder sprinkling mechanism (2) comprises an annular spray frame (201), the annular spray frame (201) is fixedly connected to one end of the main body (1) near the slide plate (101), the left and right sides of the main body (1) are fixedly connected to feed ports (202), the feed ports (202) are externally connected to an input pipe, the inner ring of the annular spray frame (201) is fixedly connected to a plurality of spray heads (203), the left and right inner walls of the main body (1) are fixedly connected to pulley frames (204), a plurality of rollers are arranged on the pulley frames (204), the left and right inner walls of the main body (1) are fixedly connected to one end of the slide plate (101), and the annular spray frame (201) is arranged between the end of the follower roller frame (205) and the pulley frame (204).

4. The support device for a magnetic particle flaw detector that is convenient to adjust and fix according to claim 3 is characterized in that: The connecting plug (405) is provided with a fixing mechanism (5) inside. The fixing mechanism (5) includes two movable push bars (501). The two movable push bars (501) are rotatably connected to the outer walls of the two extrusion sliding frames (402) respectively. One end of the two movable push bars (501) away from the extrusion sliding frame (402) is rotatably connected to the connecting push frame (502). The center of the front of the connecting push frame (502) is fixedly connected with a slide rod (503). The slide rod (503) is slidably connected to the inside of the slide hole (406). The outer wall of the slide rod (503) is fixedly connected with a plurality of rotatable A push frame (504), one end of the right side of the plurality of rotating push frames (504) away from the slide rod (503) is rotatably connected to a movable connecting frame (505), one end of the movable connecting frame (505) away from the rotating push frame (504) is slidably connected to the right inner wall of the shrinking hole (407), the right inner wall of the shrinking hole (407) is slidably connected to a sliding push bar (506), the sliding push bar (506) is rotatably connected to the movable connecting frame (505), one end of the sliding push bar (506) away from the movable connecting frame (505) is fixedly connected to a fixed block (507), and the fixed block (507) is engaged with the shelf (408).

5. The support device for a magnetic particle flaw detector that is convenient to adjust and fix according to claim 4 is characterized in that: The side of the fixed block (507) away from the sliding push strip (506) is rotatably connected to a rear push strip (508), and one end of the rear push strip (508) away from the fixed block (507) is rotatably connected to a rear movable frame (509). The right side of the rear push strip (508) is slidably connected to the right inner wall of the shrinkage hole (407), and the left side of the rear movable frame (509) is slidably connected to the left inner wall of the shrinkage hole (407). The ends of the plurality of rear movable frames (509) away from the rear push strip (508) are rotatably connected to rear push plates (510), and the rear push plates (510) are arranged inside the connecting plug (405).

6. The support device for a magnetic particle flaw detector that is convenient to adjust and fix according to claim 5 is characterized in that: The side of the slide bar (503) opposite to the rear push plate (510) is fixedly connected to a left front push rod (512), and the two left front push rods (512) are cross-distributed. The side of the slide bar (503) opposite to the rear push plate (510) is fixedly connected to a right front push rod (511), and the two right front push rods (511) are cross-distributed. Two strip hole strips (513) are rotatably connected to the center of the connecting rotating bar frame (409), and the two strip hole strips (513) are cross-distributed up and down inside the connecting rotating bar frame (409). The upper strip hole strip (513) is slidably connected to the top of the two left front push rods (512), and the lower strip hole strip (513) is slidably connected to the bottom of the two right front push rods (511).

7. A method for supporting a magnetic particle flaw detector that is convenient for adjustment and fixation, using the support device for a magnetic particle flaw detector that is convenient for adjustment and fixation as claimed in claim 6, characterized in that: The following steps are involved: S1: The motor (303) drives the lower rack (403) and the upper rack (404) to move relative to each other, thereby driving the two extrusion slide frames (402) to slide relative to each other inside the slide slot frame (306), and by squeezing the two ends of the lifting push bar (410), the lifting support column (401) is driven to slide upward inside the lifting slide frame (307), so that the connecting plug (405) can be adjusted to a position corresponding to the center of the tubular workpiece; S2: When the lifting support column (401) drives the connecting plug (405) to rise to the center of the tubular workpiece, the push bar (501) is moved to simultaneously drive the slide bar (503) to push into the inside of the connecting plug (405), so that the height of the fixed block (507) rises to correspond to the height of the lifting support column (401), so that when all the multiple fixed blocks (507) are against the inner wall of the tubular workpiece, the connecting plug (405) is exactly at the center of the workpiece; S3: The slide bar (503) pushes the multiple rotating push frames (504) to move, and simultaneously pushes the right front push rod (511) and the left front push rod (512) on the slide bar (503) to move, thereby pushing the slide bar (503) at the top of the left front push rod (512) and the slide bar (503) at the bottom of the right front push rod (511) to cross-rotate on the connecting rotating bar frame (409), and at the same time, the two bar-shaped hole bars (513) respectively slide with the right front push rod (511) and the left front push rod (512) while rotating, thereby driving the rear push plate (510) to move in the opposite direction of the slide bar (503), and similarly driving the fixed block (507) to push upward from the other side of the fixed block (507) through the multiple rear movable frames (509) and the rear push bars (508), so as to support and fix the inner wall of the tubular workpiece; S4: The hydraulic cylinder (302) is pushed to push the sliding frame (301) and the moving frame (304) to slide on the slide plate (101), thereby driving the tubular workpiece connected to the outer wall of the connecting plug (405) to move synchronously with the connecting plug (405) through the connection between the lifting support column (401) and the lifting slide (307). During the movement of the tubular workpiece, the tubular workpiece slides on the two groups of pulley frames (204) and the end follower roller frame (205), so that the tubular workpiece passes through the annular spray frame (201), and the magnetic powder for testing is adsorbed on the outer wall of the tubular workpiece through the spray head (203), so as to detect the damage on the surface of the workpiece.

Images