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CN-122017179-A - Detection device for metal corrugated pipe

CN122017179ACN 122017179 ACN122017179 ACN 122017179ACN-122017179-A

Abstract

The invention discloses a detection device of a metal corrugated pipe, which relates to the technical field of corrugated pipe detection and comprises a base, the left side and the right side of the upper end of the base are symmetrically fixed with a first fixing plate and a second fixing plate respectively, and the upper ends of the first fixing plate and the second fixing plate are provided with surface detection structures for detecting the outer surfaces of the pipe fittings. The inner support structure realizes stable fixation inside the pipe fitting and synchronous rotation during detection through a linkage mechanism of the inner support screw rod and the gear, and simultaneously, the surface detection structure drives the detection piece to perform linear reciprocating motion by utilizing the reciprocating screw rod to comprehensively scan the outer surface of the pipe fitting, so that the stability of the pipe fitting in the detection process is ensured, errors caused by shaking or displacement are avoided, the detection precision is obviously improved, and the accurate discovery of micro defects on the surface of the pipe fitting is ensured by the omnibearing detection capability, so that the detection quality and reliability are further improved.

Inventors

  • SU WEN
  • SU JIPING

Assignees

  • 安徽溶诚液压科技有限公司

Dates

Publication Date
20260512
Application Date
20260205
Priority Date
20251224

Claims (9)

  1. 1. The detection device for the metal corrugated pipe is characterized by comprising a base (1), wherein a first fixing plate (31) and a second fixing plate (32) are symmetrically fixed on the left side and the right side of the upper end of the base (1), and surface detection structures (4) for detecting the outer surface of a pipe are arranged at the upper ends of the first fixing plate (31) and the second fixing plate (32); The device comprises a base (1), wherein a movable plate (33) is slidably arranged at the upper end of the base, the movable plate (33) is positioned between a first fixed plate (31) and a second fixed plate (32), sealing rubber blocks (35) are rotatably arranged at opposite ends of the movable plate (33) and the second fixed plate (32), central grooves (351) are formed in the middle of the two sealing rubber blocks (35), a central opening (352) is formed in the middle of the central groove (351) in a penetrating mode, an inner supporting structure (6) for fixing a pipe is arranged in the central groove (351), and transmission structures for connecting a surface detection structure (4) and the inner supporting structure (6) are arranged at opposite ends of the movable plate (33) and the second fixed plate (32); The middle part of the upper end of the base (1) is provided with a moving groove (11), and an adjusting structure (2) for adjusting the relative distance between the moving plate (33) and the fixed plate II (32) is arranged in the moving groove (11).
  2. 2. The device for detecting the metal bellows according to claim 1, wherein the surface detection structure (4) comprises a reciprocating screw rod (42) rotatably installed between a first fixing plate (31) and a second fixing plate (32), one end of the reciprocating screw rod (42) extends to the end, far away from the second fixing plate (32), of the first fixing plate (31) and the output end of a second motor (41) installed on the first fixing plate (31) are fixedly connected, a guide rod (43) is fixed between the first fixing plate (31) and the second fixing plate (32), the guide rod (43) is arranged in parallel with the reciprocating screw rod (42), the outer wall of the guide rod (43) is in sliding connection with a reciprocating block (44), the reciprocating block (44) is connected with a threaded groove of the outer wall of the reciprocating screw rod (42) through an inner pin structure of the reciprocating block, a detection piece (45) is installed at the lower end of the reciprocating block (44), and one end, far away from the first fixing plate (31), of the other end of the reciprocating screw rod (42) is seriously fixed.
  3. 3. The device for detecting the metal bellows according to claim 2, wherein the transmission structure comprises two first gears (54) rotatably installed at opposite ends of a second fixed plate (32) and a movable plate (33), the first gears (54) are connected with the internal supporting structure (6), a second transmission wheel (53) is fixed in the middle of the first gears (54) at the second fixed plate (32), the second transmission wheel (53) is in transmission connection with the first transmission wheel (51) through a transmission belt (52), and the first transmission wheel (51) is fixedly connected with the other end of the reciprocating screw rod (42).
  4. 4. A metal bellows detection apparatus according to claim 3, wherein the first gear (54) is meshed with the second gear (55), a spline opening (56) is formed in the middle of the second gear (55), the inner wall of the spline opening (56) is slidably connected with the outer wall of the spline rod (57), one end of the spline rod (57) is rotatably connected with the first fixed plate (31), the second fixed plate (32) and the movable plate (33) are provided with a through opening (34) in a penetrating manner at the spline opening (56), and the inner diameter of the through opening (34) is larger than the maximum outer diameter of the spline rod (57).
  5. 5. The detection device for the metal corrugated pipe according to claim 3, wherein the inner supporting structure (6) comprises an inner supporting screw rod (61) coaxially fixed with the first gear (54), the two inner supporting screw rods (61) are respectively connected with the second fixed plate (32) and the moving plate (33) in a rotating mode, one end of each inner supporting screw rod (61) penetrates through a center hole (352) to extend into the center groove (351), the inner supporting screw rod (61) is connected with an active block (63) through threads in the center groove (351), limit holes (64) are symmetrically formed in two sides of the active block (63), limit plates (353) are symmetrically fixed on two sides of the inner wall of the center groove (351), the outer wall of the center hole (352) is connected with the inner wall of the limit holes (64) in a sliding mode, limit blocks (62) are fixed at one ends of the inner supporting screw rods (61) far away from the first gear (54), and a plurality of inner supporting pieces for supporting the inner wall of the pipe fitting are arranged on the outer walls of the active block (63) and the limit blocks (62).
  6. 6. The device for detecting the metal bellows according to claim 5, wherein the inner supporting member comprises a first connecting rod (65) and a second connecting rod (66), one end of the first connecting rod (65) is rotationally connected with the limiting block (62), the other end of the first connecting rod (65) is rotationally connected with one end of the inner supporting block (67), one end of the second connecting rod (66) is rotationally connected with the central opening (352), a sliding block is rotationally arranged at the other end of the second connecting rod (66), a notch (671) is formed in the other end of the inner supporting block (67), and the sliding block is slidably arranged inside the notch (671).
  7. 7. The device for detecting the metal bellows according to claim 5, wherein a pressurizing opening (7) is formed in the middle of one inner supporting screw rod (61) in a penetrating manner, and the pressurizing opening (7) is connected with an external pressurizing piece.
  8. 8. A metal bellows detection apparatus according to claim 7, characterized in that the outer wall of the inner support block (67) is provided with a soft cushion.
  9. 9. The device for detecting the metal bellows according to claim 1, wherein the adjusting structure (2) comprises a first motor (21) arranged at one end of the base (1), the first motor (21) extends to the inside of the moving groove (11) to be fixedly connected with an adjusting screw rod (22), the adjusting screw rod (22) is in threaded connection with a moving block (23), the moving block (23) is fixedly arranged at the lower end of the moving plate (33), the adjusting screw rod (22) is rotatably arranged inside the moving groove (11), and the moving block (23) is slidably arranged inside the moving groove (11).

Description

Detection device for metal corrugated pipe Technical Field The invention relates to the technical field of corrugated pipe detection, in particular to a detection device for a metal corrugated pipe. Background In the production and quality inspection of metal bellows, ensuring its structural integrity and sealing properties is critical. The metal corrugated pipe is used as an important pipeline connecting element and widely applied to various industrial fields such as petroleum, natural gas, chemical industry and the like, and the quality of the metal corrugated pipe directly influences the safety and the operation efficiency of the whole system. Therefore, it is particularly important to detect the metal bellows comprehensively and accurately. However, the conventional metal bellows detection device has a plurality of defects in practical application. Firstly, traditional detection device often is difficult to realize the inside firm support of pipe fitting when fixed metal bellows, leads to easily taking place to rock or shift at the in-process pipe fitting of testing, and then influences the accuracy of testing result. The instability not only can reduce the detection precision, but also can miss the tiny defects on the surface of the pipe fitting, thereby bringing hidden danger to the quality of products. Secondly, when the existing detection device detects the outer surface of the metal corrugated pipe, a fixed path or a manual operation mode is generally adopted, and comprehensive and efficient scanning of the outer surface of the pipe is difficult to realize. The method is low in efficiency, inconsistent in detection result easily caused by human factors, and further influences the detection quality and reliability. Based on this, provide a detection device of metal bellows now, can eliminate the drawback that exists that the pipe fitting stability is not enough and bellows axial detects the coverage ratio is not enough in the detection process of current device. Disclosure of Invention The invention aims to provide a detection device for a metal corrugated pipe, which solves the problems of insufficient stability of a pipe fitting and insufficient axial detection coverage rate of the corrugated pipe in the detection process of the existing device in the background art. In order to achieve the above purpose, the present invention provides the following technical solutions: the detection device of the metal corrugated pipe comprises a base, wherein a first fixing plate and a second fixing plate are symmetrically fixed on the left side and the right side of the upper end of the base respectively, and surface detection structures for detecting the outer surface of a pipe fitting are arranged at the upper ends of the first fixing plate and the second fixing plate; The upper end of the base is provided with a moving plate in a sliding manner, the moving plate is positioned between a first fixed plate and a second fixed plate, the opposite ends of the moving plate and the second fixed plate are respectively provided with a sealing rubber block in a rotating manner, the middle parts of the two sealing rubber blocks are respectively provided with a central groove, the middle parts of the central grooves are respectively provided with a central opening in a penetrating manner, the inside of the central grooves are respectively provided with an inner supporting structure for fixing the pipe, and the opposite ends of the moving plate and the second fixed plate are respectively provided with a transmission structure for connecting the surface detection structure and the inner supporting structure; the middle part of the upper end of the base is provided with a moving groove, and an adjusting structure for adjusting the relative distance between the moving plate and the fixed plate is arranged in the moving groove. Preferably, the surface detection structure comprises a reciprocating screw rod rotatably arranged between a first fixing plate and a second fixing plate, one end of the reciprocating screw rod extends to one end, far away from the second fixing plate, of the first fixing plate and is fixedly connected with the output end of a motor arranged on the first fixing plate, a guide rod is fixed between the first fixing plate and the second fixing plate, the guide rod is arranged in parallel with the reciprocating screw rod, the outer wall of the guide rod is slidably connected with a reciprocating block, the reciprocating block is connected with a thread groove of the outer wall of the reciprocating screw rod through an inner pin structure of the guide rod, a detection part is arranged at the lower end of the reciprocating block, and one end, far away from the first fixing plate, of the second fixing plate at the other end of the reciprocating screw rod is connected with a transmission structure. Preferably, the transmission structure comprises two gears I which are respectively and rotatably arranged at opp