Search

CN-119368358-B - Magnetic powder detection clamping tool

CN119368358BCN 119368358 BCN119368358 BCN 119368358BCN-119368358-B

Abstract

The invention relates to the technical field of magnetic powder detection, in particular to a magnetic powder detection clamping tool. The magnetic powder detection clamping tool comprises a guide device, a first clamping device, a second clamping device and a supporting device, wherein the first clamping device comprises a first driving mechanism and a first clamping mechanism, the first driving mechanism is fixedly arranged on the guide device, the first clamping mechanism is fixedly arranged on the first driving mechanism, the first driving mechanism can drive the first clamping mechanism to circumferentially rotate, the second clamping device comprises a second driving mechanism and a second clamping mechanism, the second driving mechanism is fixedly arranged on the guide device, the second clamping mechanism can circumferentially rotate and is arranged on the second driving mechanism, the second driving mechanism can drive the second clamping mechanism to linearly move in the length direction of the guide device, and the supporting device is arranged between the first clamping mechanism and the second clamping mechanism. The magnetic powder detection clamping tool reduces the difficulty of spraying magnetic suspension for long-length cylindrical parts.

Inventors

  • ZHANG YANSEN

Assignees

  • 国能锅炉压力容器检验有限公司

Dates

Publication Date
20260508
Application Date
20240919

Claims (9)

  1. 1. The magnetic powder detection clamping tool is characterized by comprising a guide device (1), a first clamping device (2), a second clamping device (3) and a supporting device (4), wherein the first clamping device (2) and the second clamping device (3) are distributed at intervals along the length direction of the guide device (1); The first clamping device (2) comprises a first driving mechanism (21) and a first clamping mechanism (22), the first driving mechanism (21) is fixedly arranged on the guiding device (1), the first clamping mechanism (22) is fixedly arranged on the first driving mechanism (21), and the first driving mechanism (21) can drive the first clamping mechanism (22) to circumferentially rotate; The second clamping device (3) comprises a second driving mechanism (31) and a second clamping mechanism (32), the second driving mechanism (31) is fixedly arranged on the guiding device (1), the second clamping mechanism (32) is circumferentially rotatably arranged on the second driving mechanism (31), the second driving mechanism (31) can drive the second clamping mechanism (32) to linearly move in the length direction of the guiding device (1), the axis of the second clamping mechanism (32) is coincident with the axis of the first clamping mechanism (22) and extends along the length direction of the guiding device (1), and the second clamping mechanism (32) and the first clamping mechanism (22) can horizontally clamp the two axial ends of a large-length cylindrical part; the supporting device (4) is positioned between the first clamping mechanism (22) and the second clamping mechanism (32) and is used for supporting a long cylindrical part; The guiding device (1) comprises two parallel tracks (11); The magnetic powder detection clamping tool further comprises a spraying device (5), wherein the spraying device (5) comprises a spray head (51), a moving block (53), a screw rod (54) and two supporting rods (57), the supporting rods (57) are fixedly connected to the same track (11), the two supporting rods (57) are distributed at intervals along the length direction of the guide device (1), two ends of the screw rod (54) are respectively and rotatably connected with the top ends of the two supporting rods (57), the screw rod (54) penetrates through the moving block (53) and is in threaded connection with the moving block (53), and the spray head (51) is mounted on the moving block (53) and can spray magnetic suspension towards a large-length cylindrical part; The magnetic powder detection clamping tool also comprises a carrying mechanism (6), the two guide rails (58) and two second driving oil cylinders (59), wherein the tail ends of the two guide rails (58) are fixedly arranged at the top of the same guide rail (11), the two guide rails (58) are spaced apart in the length direction of the guide device (1), the head ends of the guide rails (58) are positioned outside the guide device (1), the top of the guide rails (58) is provided with sliding grooves which extend along the width direction of the guide device (1), the bottom ends of the two supporting rods (57) are respectively movably arranged in the two sliding grooves, the second driving oil cylinders (59) are positioned above the sliding grooves, the cylinder bodies of the two second driving oil cylinders (59) are respectively fixedly connected to the head ends of the two guide rails (58), the driving rods of the second driving oil cylinders (59) are connected to the corresponding supporting rods (57), the second driving oil cylinders (59) can drive the supporting rods (57) to reciprocate along the sliding rails (58), and the first driving mechanism (6) comprises a first carrying mechanism (61), a lifting plate (62), a pressing rod (63), a pressing block (64), two second mounting rods (65), The first mounting rod (61) is detachably connected to the moving block (53), the second mounting rod (65) comprises a first rod section (651) and a second rod section (652), the top ends of the two first rod sections (651) are respectively fixedly connected to the first mounting rod (61), the two first rod sections (651) are spaced apart in the length direction of the guide device (1), the bottom ends of the first rod section (651) are lower than the top ends of the first rod section (651), the horizontal distance between the first rod section (651) and the screw rod (54) gradually increases from the top ends of the first rod section (651), the top ends of the second rod section (652) are fixedly connected to the bottom ends of the first rod section (651), the bottom ends of the second rod section (652) are lower than the top ends of the second rod section (652), the top ends of the second rod section (652) are gradually increased from the top ends of the second rod section (651) to the bottom ends of the second rod section (54), the second rod section (652) gradually increases from the top ends of the second rod section (651) to the bottom ends of the second rod section (54) and gradually increases toward the second rod section (652), the horizontal distance between the second rod section (652) and the second rod section (652) is gradually increased from the top ends of the second rod section (54), the bottom ends of the third mounting rods (66) are connected with the second rod sections (652) through third driving oil cylinders (68), the axes of the third mounting rods (66) are parallel to the axes of the third driving oil cylinders (68), the lifting plates (62) are fixedly mounted on the outer sides of the bottom ends of the two third mounting rods (66), the lifting plates (62) are provided with horizontal lifting surfaces, the top ends of the two fourth mounting rods (67) are fixedly mounted on the inner sides of the two second rod sections (652) respectively, the bottom ends of the fourth mounting rods (67) are lower than the top ends of the fourth mounting rods (67), the top ends of the fourth mounting rods (67) are higher than the bottom ends of the third mounting rods (66), the horizontal distance between the top ends of the fourth mounting rods (67) and the screw rods (54) is gradually reduced, the pressing rods (63) are fixedly connected to the bottom ends of the two fourth mounting rods (67), and the pressing rods (63) face to one side of the third mounting rods (64).
  2. 2. A magnetic powder inspection clamping fixture according to claim 1, characterized in that the first driving mechanism (21) and the second driving mechanism (31) are fixedly mounted at both ends of the rails (11) in the length direction thereof, respectively, and the supporting device (4) is located between the two rails (11).
  3. 3. The magnetic particle inspection clamping fixture according to claim 2, wherein the guiding device (1) further comprises a telescopic frame (12), the telescopic frame (12) comprises two first sleeves (121) and two first telescopic rods (122), the two first sleeves (121) are fixed between the two rails (11), the two first sleeves (121) are spaced apart in the width direction of the guiding device (1), the axis of the first sleeves (121) extends along the length direction of the guiding device (1), the rear sections of the two first telescopic rods (122) are respectively movably arranged in the two first sleeves (121), the front sections of the first telescopic rods (122) are positioned outside the corresponding first sleeves (121), the supporting device (4) is connected to the end parts of the front sections of the first telescopic rods (122), first running wheels (123) are arranged on the outer sides of the front sections of the first telescopic rods (122), and the axes of the first running wheels (123) can extend along the width direction of the rails (11) along the first running wheels (123); The top of first sleeve (121) is equipped with first connecting cylinder (124), threaded connection has first gag lever post (125) in first connecting cylinder (124), the top of first gag lever post (125) is located the top of first connecting cylinder (124), the top of first gag lever post (125) is equipped with first rotor plate (126), the bottom activity of first gag lever post (125) passes the section of thick bamboo wall of first connecting cylinder (124) and can with the top contact of corresponding first telescopic link (122).
  4. 4. A magnetic powder inspection clamping fixture according to claim 2, characterized in that the first driving mechanism (21) comprises a first driving motor (212) and a transmission shaft (211), the first driving motor (212) is fixedly mounted at the end part of the rail (11), and the head end of the transmission shaft (211) is connected with the output shaft of the first driving motor (212); The first clamping mechanism (22) comprises a first clamping disc (221), the first clamping disc (221) is fixedly connected to the tail end of the transmission shaft (211), the first driving motor (212) can drive the first clamping disc (221) to circumferentially rotate around the axis of the first clamping disc through the transmission shaft (211), the axis of the first clamping disc (221) and the axis of the second clamping mechanism (32) are coincident and all extend along the length direction of the guide device (1), and the axis of the first clamping disc (221) is located above the guide device (1).
  5. 5. A magnetic particle inspection clamping fixture according to claim 4, characterized in that the first clamping mechanism (22) further comprises an end fixing mechanism, the end fixing mechanism further comprising two fixing blocks (223), two connecting bolts (224) and two clamping blocks (225); Two fixed blocks (223) are fixedly connected to the top surface and the bottom surface of the first clamping disc (221) respectively, two connecting bolts (224) vertically penetrate through the two fixed blocks (223) respectively, the connecting bolts (224) are in threaded connection with the corresponding fixed blocks (223), two clamping blocks (225) are in threaded connection with the tail ends of the two connecting bolts (224) respectively so as to be used for radially clamping the end parts of the long-length cylindrical parts, the two clamping blocks (225) are located between the first clamping disc (221) and the second clamping mechanism (32), and one surface, facing the long-length cylindrical parts, of the clamping blocks (225) is set to be an arc surface.
  6. 6. A magnetic powder inspection clamping fixture according to claim 4, characterized in that the second driving mechanism (31) comprises a first fixing plate (311), a first driving oil cylinder (312) and a connecting shaft (313), the first fixing plate (311) is fixedly connected to the end part of the rail (11) and extends vertically, a cylinder body of the first driving oil cylinder (312) is fixedly connected to the first fixing plate (311), and a driving rod of the first driving oil cylinder (312) is fixedly connected with the first end of the connecting shaft (313); The second clamping mechanism (32) comprises a second clamping disc (321), the second clamping disc (321) is connected to the tail end of the connecting shaft (313) in a circumferential rotation mode, and the axis of the second clamping disc (321), the axis of the connecting shaft (313), the axis of the first driving oil cylinder (312) and the axis of the first clamping disc (221) are coincident and extend along the length direction of the guide device (1).
  7. 7. A magnetic particle inspection clamping fixture according to claim 6, characterized in that the second driving mechanism (31) further comprises a supporting frame (314), the supporting frame (314) comprises a second fixing plate (315) and a bracket (316), the bracket (316) is located between two rails (11), two sides of the bracket (316) in the width direction of the guiding device (1) are respectively provided with a group of second travelling wheels (317), the axis of the second travelling wheels (317) extends along the width direction of the guiding device (1), and the second travelling wheels (317) can roll along the rails (11) on the ground; the second fixing plate (315) is fixedly connected to the bracket (316) and extends vertically, the connecting shaft (313) penetrates through the second fixing plate (315) and is fixedly connected with the second fixing plate (315), and the second fixing plate (315) is located between the head end and the tail end of the connecting shaft (313); The connecting shaft (313) can drive the supporting frame (314) to reciprocate based on the driving of the first driving oil cylinder (312).
  8. 8. A magnetic powder inspection clamping fixture according to claim 7, characterized in that the supporting device (4) comprises a guide plate (41), two second sleeves (42), two second telescopic rods (43) and two rollers (44); The guide plate (41) is fixedly connected to one end of the bracket (316) facing the first clamping disc (221) and extends vertically, two arc-shaped guide holes (411) and two positioning holes are formed in the guide plate (41), the two positioning holes are respectively located at the centers of the two guide holes (411), a first threaded column (421) and a second threaded column (422) are arranged on the side part of the second sleeve (42), the first threaded column (421) penetrates through one of the positioning holes, the second threaded column (422) penetrates through one of the guide holes (411), nuts are respectively connected to the first threaded column (421) and the second threaded column (422) in a threaded manner, the nuts and the second sleeve (42) are respectively located on two sides of the guide plate (41), the axis of the first threaded column (421) and the axis of the second threaded column (422) extend along the length direction of the guide device (1), and the second sleeve (42) can rotate around the first threaded column (411) and gradually increases along the distance between the two corresponding guide holes (42) from top to bottom; The two second telescopic rods (43) axially penetrate through the two second sleeves (42) respectively, the axis of each second telescopic rod (43) is intersected with the axis of each first clamping disc (221), the distance between the two second telescopic rods (43) is gradually increased from top to bottom, the two rollers (44) are respectively arranged at the top ends of the two second telescopic rods (43), the rollers (44) are located above the second sleeves (42), the axis of each roller (44) extends along the length direction of the guide device (1), and an elastic layer is arranged on the outer peripheral surface of each roller (44); The lateral part of second sleeve (42) still is equipped with second connecting tube (423), threaded connection has second gag lever post (424) in second connecting tube (423), the top of second gag lever post (424) is located outside second connecting tube (423), the top of second gag lever post (424) is equipped with second rotor plate (425), the bottom activity of second gag lever post (424) passes the section of thick bamboo wall of second sleeve (42) and can with the lateral part contact of corresponding second telescopic link (43).
  9. 9. A magnetic powder inspection clamping fixture according to claim 8, characterized in that the spraying device (5) comprises a magnetic suspension providing mechanism (52), a guide rod (55) and a second drive motor (56); The two ends of the guide rod (55) are fixedly connected with the top ends of the two support rods (57), the length direction of the screw rod (54), the length direction of the guide rod (55) and the length direction of the guide device (1) are consistent, the screw rod (54) and the guide rod (55) are spaced apart in the width direction of the guide device (1), the second driving motor (56) is fixedly connected to the top of one support rod (57), a driving shaft of the second driving motor (56) is connected with the end part of the screw rod (54) so as to drive the screw rod (54) to circumferentially rotate, a mounting groove is formed in the bottom of the moving block (53), the top of the guide rod (55) is movably mounted in the mounting groove, the magnetic suspension providing mechanism (52) is located at the end part of one rail (11), and the magnetic suspension providing mechanism (52) is communicated with the spray head (51) and can provide magnetic suspension to the spray head (51).

Description

Magnetic powder detection clamping tool Technical Field The invention relates to the technical field of magnetic powder detection, in particular to a magnetic powder detection clamping tool. Background For some precise long cylindrical parts (such as pipe, rod or shaft), magnetic powder inspection is usually required to determine whether damage affecting use exists on the outer peripheral surface of the long cylindrical part before the long cylindrical part is put into use. The magnetic powder detection method mainly comprises the following steps of spraying a layer of magnetic suspension on the surface of a long-length cylindrical part, and detecting the surface of the long-length cylindrical part through a magnetic powder detector. When spraying magnetic powder, in order to avoid serious damage caused by friction between the outer peripheral surface of the long-length cylindrical part and the cement floor, the long-length cylindrical part is generally not laid on the floor, but is placed vertically. But the vertical long cylindrical parts are higher, the worker can spray the upper parts of the long cylindrical parts only by stepping on the heightening device by feet, and the worker also needs to continuously change the position of the heightening device so as to comprehensively spray the outer peripheral surfaces of the upper parts of the long cylindrical parts. In addition, in order to prevent the long cylindrical parts placed vertically from toppling over to cause safety accidents, the auxiliary supporting device is also installed to fix the long cylindrical parts on the ground, and the long cylindrical parts are removed after spraying is completed. In the spraying process, workers need to ascend for multiple times to implement spraying and need to repeatedly disassemble and assemble the auxiliary supporting device, so that the difficulty of spraying the magnetic suspension for the long-length cylindrical parts is high. Disclosure of Invention The invention aims to solve the problem that in the prior art, the difficulty of spraying magnetic suspension to a long-length cylindrical part is high. In order to achieve the above object, the present invention provides a magnetic powder inspection clamping tool, which comprises a guiding device, a first clamping device, a second clamping device and a supporting device, wherein the first clamping device and the second clamping device are distributed at intervals along the length direction of the guiding device. The first clamping device comprises a first driving mechanism and a first clamping mechanism, the first driving mechanism is fixedly arranged on the guiding device, the first clamping mechanism is fixedly arranged on the first driving mechanism, and the first driving mechanism can drive the first clamping mechanism to circumferentially rotate. The second clamping device comprises a second driving mechanism and a second clamping mechanism, the second driving mechanism is fixedly arranged on the guiding device, the second clamping mechanism is circumferentially rotatably arranged on the second driving mechanism, the second driving mechanism can drive the second clamping mechanism to linearly move in the length direction of the guiding device, the axis of the second clamping mechanism coincides with the axis of the first clamping mechanism and extends along the length direction of the guiding device, and the second clamping mechanism and the first clamping mechanism can horizontally clamp the two axial ends of a large-length cylindrical part. The support device is positioned between the first clamping mechanism and the second clamping mechanism and is used for supporting the long-length cylindrical parts. In some embodiments, the guiding device comprises two parallel tracks, the first driving mechanism and the second driving mechanism are respectively fixedly arranged at two ends of the tracks in the length direction, and the supporting device is arranged between the two tracks. In some embodiments, the guiding device further comprises a telescopic frame, the telescopic frame comprises two first sleeves and two first telescopic rods, the two first sleeves are fixed between the two rails, the two first sleeves are spaced apart in the width direction of the guiding device, the axes of the first sleeves extend along the length direction of the guiding device, the rear sections of the two first telescopic rods are respectively movably arranged in the two first sleeves in a penetrating mode, the front sections of the first telescopic rods are located outside the corresponding first sleeves, the supporting device is connected to the end portions of the front sections of the first telescopic rods, first travelling wheels are arranged on the outer sides of the front sections of the first telescopic rods, the axes of the first travelling wheels extend along the width direction of the guiding device, and the first travelling wheels can roll on the ground along the rai