Ultrasonic detection device for crimping pipe

Abstract

The invention provides a crimping pipe ultrasonic detection device, and belongs to the technical field of nondestructive testing, the crimping pipe ultrasonic detection device specifically comprises a positioning assembly, an auxiliary bracket and a detection track assembly, and the positioning assembly is used for positioning a crimping pipe and can drive the crimping pipe to rotate during rotation; the auxiliary bracket is used for supporting the crimping pipe; the detection track assembly is connected with the auxiliary bracket, so that the detection probe can move relative to the crimping pipe in the circumferential direction; the track detection assembly comprises a position control arm, the detection probe is installed at the end of the position control arm, and in the moving process of the detection probe, the detection probe can be in contact with the crimping pipe. Compared with the prior art, when ultrasonic detection is carried out on the crimping pipe, the crimping pipe can be placed on the positioning assembly, then the detection probe is driven to move through the detection track assembly on the auxiliary bracket, the detection probe can do circular motion around the crimping pipe, and in the circular motion process of the detection probe, the crimping pipe can be subjected to ultrasonic detection conveniently. The detection stability is improved.

Description

Technical Field

[0001] This invention belongs to the field of nondestructive testing technology, specifically relating to an ultrasonic testing device for crimped pipes. Background Technology

[0002] Crimped pipes are components that connect pipes using mechanical crimping. Connecting pipes with crimped pipes requires no welding or threading; the connection is completed simply by tightening with specialized tools, making construction quick and easy. However, after connecting the pipes with crimped pipes, the crimped area needs to be inspected. During the crimping process, defects may occur due to improper operation or mold wear, such as incomplete crimping (insufficient crimping depth, resulting in internal gaps), over-crimping (excessive material deformation leading to reduced strength), and cracks (micro-cracks generated during crimping). Ultrasonic testing can accurately detect these internal defects, preventing structural failures caused by process issues.

[0003] Traditional ultrasonic testing requires applying a coupling agent to the surface of the crimped fitting and then attaching the ultrasonic probe to it. The probe transmits sound waves through the coupling agent to detect the crimped fitting. However, the crimped area is complex, with variations such as deformation, steps, or thickness changes. This necessitates advanced operational skills when using traditional ultrasonic testing equipment. Furthermore, when the crimped fitting has a large diameter, it can be inconvenient for technicians, as operational errors may cause sound wave reflection and refraction, generating false defect signals and affecting the accuracy of the test. Summary of the Invention

[0004] The purpose of this invention is to provide an ultrasonic testing device for crimped pipes, which facilitates the testing of crimped pipes, reduces the difficulty of testing operations, and minimizes operational errors.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is an ultrasonic testing device for a crimped tube, comprising a positioning component, an auxiliary bracket, and a testing trajectory component. The positioning component is used to position the crimped tube and can drive the crimped tube to rotate when rotated. The auxiliary bracket is used to support the crimped tube. The testing trajectory component is connected to the auxiliary bracket and is used to carry the testing probe, so that the testing probe can move relative to the crimped tube in the circumferential direction.

[0006] The detection trajectory assembly includes a control arm, and a detection probe is mounted at the end of the control arm, so that the detection probe can maintain contact with the pressure tube during the movement of the detection probe.

[0007] Furthermore, the auxiliary bracket includes a side support arm, a flat lifting arm, and a movable frame. The flat lifting arm is vertically connected to the side support arm and is coaxially arranged with the pressure pipe. The movable frame is connected to the flat lifting arm, and the detection trajectory component is connected to the movable frame, which drives the detection trajectory component to move.

[0008] Furthermore, the mobile frame includes a side frame, a pull arm, and a straight support plate, with the side frame being a semi-circular bend;

[0009] There are two pull arms, and the ends of the connecting side frame are connected to each other; the straight support plate is connected to the two pull arms; the side frame, the straight support plate and the two pull arms form the detection area, and the detection trajectory component is installed in the detection area.

[0010] Furthermore, the straight support plate is provided with perforated slides, through which the flat boom passes, allowing the straight support plate to slide along the length of the flat boom.

[0011] Furthermore, the detection trajectory assembly also includes a trajectory adjustment component, a linkage ring, and a probe positioning frame. The trajectory adjustment component is set within the detection area and connected to the moving frame; the linkage ring is connected to the trajectory adjustment component; the probe positioning frame is connected to the trajectory adjustment component, and the control arm is connected to the probe positioning frame. The probe positioning frame can rotate and, when rotating, drives the control arm to perform a circular motion.

[0012] Furthermore, the control arm simultaneously passes through the probe positioning frame and the linkage ring, and a compression reset spring is connected between the control arm and the linkage ring. When the control arm moves, it causes the detection probe to swing.

[0013] Furthermore, the control arm includes a straight arm, an adjustment plate, and a guide rod. A baffle is fixed to the inner end of the straight arm, and a stabilizing component is connected to the outer end. The detection probe is mounted on the stabilizing component. The adjustment plate is screwed onto the straight arm and is located between the linkage ring and the probe positioning frame. By rotating the adjustment plate, the distance between the stabilizing component and the probe positioning frame can be adjusted. The guide rod is vertically connected to the straight arm.

[0014] Furthermore, the trajectory adjustment component is provided with several guide protrusions, which are arranged along the circumference of the trajectory adjustment component, and the two adjacent guide protrusions are connected by an arc surface transition.

[0015] The guide rod can be positioned between two adjacent guide protrusions.

[0016] Furthermore, the stabilizing assembly includes a clamping rod, a top plate, a tension return spring, and a clamping sleeve. The clamping rod is connected to the outer end of the straight arm and is axially movable. The top plate is connected to the clamping rod and is located above the straight arm. One end of the tension return spring is connected to the top plate, and the other end is connected to the straight arm. The clamping sleeve is mated to the lower end of the clamping rod and is used to connect the detection probe.

[0017] Furthermore, the positioning component includes a positioning frame and a clamping cylinder. The clamping cylinder is equipped with a clamping component, and the pressure tube can pass through the clamping cylinder and be clamped by the clamping component. The clamping cylinder is connected to the positioning frame, and the clamping cylinder can rotate, which drives the pressure tube to rotate. During this process, the control arm is in a stationary state.

[0018] Compared with the prior art, the beneficial effects of the present invention are: when performing ultrasonic testing on the crimped tube, the crimped tube can be placed on the positioning component, and then the detection probe can be moved by the detection trajectory component on the auxiliary bracket, so that the detection probe can make a circular motion around the crimped tube, and the detection probe can always be in contact with the crimped tube during the circular motion, thereby increasing the detection stability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the external frame structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the positioning component structure of the present invention;

[0022] Figure 4 This is a schematic cross-sectional view of the connection between the positioning frame and the clamping cylinder of the present invention;

[0023] Figure 5 This is a schematic diagram showing the connection between the top clamping arm and the clamping cylinder of the present invention;

[0024] Figure 6 This is a schematic diagram of the auxiliary bracket structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the mobile frame structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the detection trajectory component structure of the present invention;

[0027] Figure 9 This is a schematic diagram of the control arm structure of the present invention;

[0028] Among them, 1-base platform, 2-outer frame, 3-support arm, 4-locking arm, 5-arc-shaped support plate, 6-straight strip plate, 7-positioning frame, 8-limiting plate, 9-clamping cylinder, 10-notch, 11-inner track groove, 12-outer gear ring, 13-top clamping arm, 14-straight tube body, 15-guide plate, 16-arched frame, 17-locking collar, 18-gripping tube body, 19-locking rod, 20-side support arm, 21-flat lifting arm, 22-... -Moving frame, 23-Side frame, 24-Pull arm, 25-Straight support plate, 26-Base sleeve, 27-Guide protrusion, 28-Active ring, 29-Linkage ring, 30-Straight arm rod, 31-Baffle plate, 32-Compression return spring, 33-Adjusting plate, 34-Guide rod, 35-Tightening pressure rod, 36-Tightening sleeve, 37-Top plate, 38-Tension return spring, 39-Stable locking rod, 40-Tightening arm, 41-Limiting ridge. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] See Figure 1 As shown, an ultrasonic testing device for a crimped tube includes a base stage 1 and a positioning component. The positioning component is installed on the base stage 1 and positions the crimped tube. An auxiliary bracket is also provided on the base stage 1 to support the crimped tube. A detection trajectory component is connected to the auxiliary bracket so that the detection probe is installed on the detection trajectory component. The detection probe moves around the crimped tube to perform ultrasonic testing on the crimped tube.

[0032] See Figures 1 to 4As shown, the aforementioned positioning component is connected to the base platform 1 via an outer frame. The positioning component has a circular structure, and the outer frame includes an outer frame 2, which encloses the positioning area. The positioning component is located within the positioning area. A support arm 3 and a locking arm 4 are connected to the outer frame 2. One end of the support arm 3 is fixedly connected to the outer frame 2, and the other end is fixed to the base platform 1. The locking arm 4 is used to lock the position of the positioning component. At this time, both the outer frame 2 and the positioning component have a certain vertical distance from the base platform 1. The outer frame 2 includes two arc-shaped support plates 5, and the horizontal distance between the two ends of each arc-shaped support plate 5 is... The spacing is equal to the diameter of the arc-shaped support plate 5. The two arc-shaped support plates 5 are arranged opposite each other. Two straight plates 6 are connected between the two arc-shaped support plates 5. The two straight plates 6 are parallel to each other. The end of each straight plate 6 is connected to the end of the corresponding arc-shaped support plate 5. A threaded hole is provided on the arc-shaped support plate 5. The threaded hole passes through the arc-shaped support plate 5. At this time, the threaded hole is located at the position where the length of the arc-shaped support plate 5 is divided into two equal parts. The locking arm 4 passes through the threaded hole. After the positioning component is installed in the positioning area, the positioning component can be locked in position by the locking arm 4. At this time, the positioning component cannot move longitudinally.

[0033] The aforementioned positioning component includes a cylindrical positioning frame 7, on which two annular limiting discs 8 are mated. The outer diameter of the limiting discs 8 is larger than the outer diameter of the positioning frame 7. At this time, the area between the two limiting discs 8 is the mating area. When the positioning component is connected to the outer frame 2, the straight strip 6 on the outer frame 2 is located in the mating area. At this time, the positioning component cannot be separated from the outer frame 2.

[0034] The aforementioned limiting plate 8 and positioning frame 7 can be welded together. In this case, the limiting plate 8 and positioning frame 7 are set on the same axis, and the inner circumferential surface of the limiting plate 8 is in contact with the outer circumferential surface of the positioning frame 7.

[0035] See Figures 3 to 5 As shown, the positioning assembly also includes a cylindrical clamping cylinder 9, into which the pressure tube can be inserted. The clamping cylinder 9 is connected to the positioning frame 7. Specifically, the positioning frame 7 is fitted onto the clamping cylinder 9, allowing the clamping cylinder 9 to rotate but not move axially. When the clamping cylinder 9 rotates, it can drive the pressure tube to rotate. During ultrasonic testing, the testing probe can either move around the pressure tube or remain stationary while the pressure tube rotates. Both methods can complete the testing of the pressure tube.

[0036] A driving structure (not shown) connects the clamping cylinder 9 and the positioning frame 7. This driving structure allows the clamping cylinder 9 to rotate. Specifically, an inner limiting groove is provided on the inner circumferential surface of the positioning frame 7, extending around the circumference of the positioning frame 7 until it forms a closed annular shape. A limiting protrusion is also provided on the clamping cylinder 9, located within the inner limiting groove. When the clamping cylinder 9 rotates, the limiting protrusion moves within the inner limiting groove, preventing axial movement of the clamping cylinder 9. The positioning frame 7 also has an inner trajectory groove 11 and a notch 10. The inner trajectory groove 11 is located on the inner circumferential surface of the positioning frame 7, and the notch 10 is located on the outer circumferential surface of the positioning frame 7. On the circumferential surface, and with the notch 10 communicating with the inner track groove 11, an external gear ring 12 is provided on the clamping cylinder 9. The external gear ring 12 is fixedly connected to the clamping cylinder 9, and the two are coaxially arranged. When the external gear ring 12 rotates, it can drive the clamping cylinder 9 to rotate. A gear transmission assembly is provided on the positioning frame 7. After the gear transmission assembly passes through the notch 10, it can mesh with the external gear ring 12. A drive component is also provided on the positioning frame 7. The drive component meshes with the gear transmission assembly. Through the cooperation of the drive component and the gear transmission assembly, the external gear ring 12 can be rotated, which drives the clamping cylinder 9 to rotate. After the clamping cylinder 9 clamps the pressure tube, it can drive the pressure tube to rotate.

[0037] In order to clamp the crimped tube, a clamping assembly is provided on the clamping cylinder 9. When the crimped tube is clamped by the clamping assembly, the crimped tube and the clamping cylinder 9 are in a coaxial state.

[0038] Specifically, the clamping assembly includes several top clamping arms 13, each of which radially passes through the clamping cylinder 9. A limiting guide sleeve is provided on the clamping cylinder 9 and is connected to the top clamping arm 13. The limiting guide sleeve can control the movement of the top clamping arm 13 along its own length direction. There are also several limiting guide sleeves, which can work simultaneously, thereby causing several top clamping arms 13 to move simultaneously, so that the inner end of the top clamping arm 13 abuts against the crimping tube. In this way, crimping tubes of different diameters can be clamped and positioned. However, it should be noted that before clamping the crimping tube, depending on the material and wall thickness of the crimping tube, an inner support component can be inserted into the crimping tube to avoid deformation of the crimping tube during the clamping process.

[0039] To enable multiple limiting guide sleeves to rotate simultaneously, the aforementioned limiting guide sleeve includes a straight tube body 14 and a guide plate 15. The straight tube body 14 radially penetrates the clamping cylinder 9. The guide plate 15 is fixed to the outer end of the straight tube body 14. The outer circumferential surface of the guide plate 15 is provided with protruding teeth, and the inner circumferential surface of the straight tube body 14 is provided with threaded grooves. The top clamping arm 13 passes through the straight tube body 14 and is also threaded. When one component rotates, the two can move relative to each other in the axial direction. For example, when the straight tube body 14 rotates, the top clamping arm 13 can move axially. However, it is necessary to prevent the straight tube body 14 from moving at this time. Two clamping discs (not shown) are fixed on the straight tube body 14, with the two clamping discs located on the inner and outer sides of the clamping cylinder 9 respectively. At this time, the straight tube body 14 cannot move axially. An arched frame 16 is fixed on the outer circumferential surface of the clamping cylinder 9. An directional part is provided on the arched frame 16. The top clamping arm 13 passes through the directional part. By setting the directional part, the rotation of the top clamping arm 13 is restricted, so that the top clamping arm 13 can only move axially but cannot rotate. That is, when the guide plate 15 rotates, it can drive the straight tube body 14 to rotate. Since the top clamping arm 13 cannot rotate at this time, it can move axially, and finally the inner end of the top clamping arm 13 abuts against the pressure tube.

[0040] The directional part includes two types: one is a short tube or ring fixed on the arch frame 16, and the other is a round hole set on the arch frame 16. Regardless of the structure, an axially extending linear groove should be provided on its inner wall, and an axially extending protrusion is fixed on the top clamping arm 13. The protrusion is located in the linear groove, so that the top clamping arm 13 cannot rotate.

[0041] An annular groove is provided on the outer circumferential surface of the clamping cylinder 9, and a locking collar 17 is fitted on the clamping cylinder 9. A radially extending protrusion is fixed on the inner circumferential surface of the locking collar 17. The protrusion is located in the annular groove, so that the locking collar 17 and the clamping cylinder 9 cannot be separated, but the two can rotate relative to each other. The locking collar 17 is provided with protruding teeth, which are arranged along the circumferential direction of the locking collar 17, so that the locking collar 17 can engage with the guide plate 15. When the locking collar 17 rotates, it can make the straight pipe body 14 rotate. Finally, the direction of movement of the top clamping arm 13 is controlled according to the rotation direction of the locking collar 17, so that the top clamping arm 13 abuts against the pressure pipe or separates from the pressure pipe.

[0042] A position locking assembly is also provided on the aforementioned locking collar 17. The position locking assembly includes a gripping tube 18 fixed on the locking collar 17. The gripping tube 18 radially penetrates the locking sleeve. A locking rod 19 passes through the gripping tube 18. The inner end of the locking rod 19 is located in the annular groove. The locking rod 19 is screwed to the gripping tube 18. By rotating the locking rod 19, the inner end of the locking rod 19 can be pressed against the bottom surface of the annular groove. At this time, the position of the locking collar 17 is locked. When the locking collar is not locked, the locking collar 17 can be rotated by the gripping tube 18 to facilitate the adjustment of the top clamping arm 13.

[0043] See Figure 1 , Figures 6 to 9 As shown, after the positioning of the pressure pipe is completed, the pressure pipe is supported by an auxiliary bracket, and the position of the detection probe is adjusted so that the detection probe can contact the position of the pressure pipe to be tested.

[0044] The specific auxiliary bracket includes a side support arm 20 fixed on the base platform 1. The side support arm 20 is vertically connected to the base platform 1. After the crimping tube is positioned by the positioning component, the side support arm 20 is located on the side of the crimping tube. A horizontally arranged flat lifting arm 21 is provided on the side support arm 20. There are two flat lifting arms 21, both of which are parallel to the central axis of the crimping tube. The two flat lifting arms 21 are arranged vertically. A movable frame 22 can be connected through the two flat lifting arms 21. The movable frame 22 is connected to the detection trajectory component. The detection probe is installed on the detection trajectory component. The detection trajectory component is annular. After adjusting the movable frame 22, the detection trajectory component and the clamping cylinder 9 on the positioning component can be in a coaxial state. At this time, the detection probe can contact the crimping tube.

[0045] Specifically, the movable frame 22 is connected to two flat lifting arms 21. For example, the movable frame 22 includes a side frame 23 with two ends. The side frame 23 is a semi-circular curved rod. Horizontally arranged pull arms 24 are fixed at both ends of the side frame 23. A straight support plate 25 is connected between the two pull arms 24. A perforated slide is opened on the straight support plate 25. The flat lifting arms 21 pass through the corresponding perforated slide. At this time, the side frame 23, the straight support plate 25 and the two pull arms 24 form a detection area. The detection trajectory component is located in the detection area. When the straight support plate 25 is moved, the detection trajectory component can be adjusted to move, so that the pressure pipe is located in the detection area.

[0046] The aforementioned detection trajectory component includes a trajectory adjustment component, which is set within the detection area and connected to the movable frame 22. The trajectory adjustment component is connected to a probe positioning frame 7. Both the probe positioning frame 7 and the trajectory adjustment component are annular and coaxial. At this time, the probe positioning frame 7 can rotate, driving the detection probe to rotate, so that the detection probe makes a circular motion around the pressure tube, which can realize ultrasonic detection of the pressure tube.

[0047] The aforementioned trajectory adjustment component includes a circular reference sleeve 26, on the end face of which a plurality of guide protrusions 27 are provided. The plurality of guide protrusions 27 are arranged along the circumferential direction of the reference sleeve 26. The end of each guide protrusion 27 is a rounded chamfer, and there is a rounded transition between two adjacent guide protrusions 27. A linkage ring 29 is connected to the reference sleeve 26. The linkage ring 29 is sleeved on the reference sleeve 26. The linkage ring 29 can rotate but cannot be separated from the reference sleeve 26.

[0048] See Figure 8 As shown, the probe positioning frame 7 includes an annular active ring 28, which is sleeved on the reference sleeve 26. The active ring 28 can also rotate, but cannot be separated from the reference sleeve 26. The active ring 28 has a through hole that passes through the active ring 28 along the central axis. A control arm is connected to the active ring 28. The control arm passes through the through hole and is connected to the linkage ring 29. The detection probe can be mounted on the control arm. When the active ring 28 rotates, it can drive the linkage ring 29 to rotate. At this time, the control arm also makes a circular motion, thereby driving the detection probe to move around the pressure tube.

[0049] The aforementioned control arm includes a straight arm 30, with a baffle 31 fixed to its inner end and a stabilizing component connected to its outer end. A detection probe is mounted on the stabilizing component. An extension hole is provided on the linkage ring 29, aligned with a through hole on the drive ring 28. The straight arm 30 passes through the extension hole. A compression return spring 32 is connected between the baffle 31 and the linkage ring 29. A threaded section is provided on the straight arm 30, with an adjusting plate 33 screwed onto it. The adjusting plate 33 is located between the drive ring 28 and the linkage ring 29. By rotating the adjusting plate 33, the distance from the outer end of the straight arm 30 to the drive ring 28 can be adjusted. A guide rod 34 and a limiting ridge 41 are provided on the straight arm 30. The guide rod 34 is perpendicularly connected to the straight arm 30. The limiting rib 41 extends along the length of the straight arm 30 but does not extend to the threaded section. A notch is provided in the through hole of the active ring 28. The limiting rib 41 fits in the notch, preventing the straight arm 30 from rotating around its own central axis. However, the straight arm 30 can move axially. By rotating the adjusting plate 33, the straight arm 30 can move axially. When the guide rod 34 moves to the position between two adjacent guide protrusions 27, with the rotation of the active ring 28, the detection probe on the stabilizing component can swing through the cooperation of the guide rod 34 and the guide protrusions 27, thereby adjusting the motion state of the detection probe during the movement.

[0050] For example, when the detection probe does not need to swing during the detection process, the guide rod 34 is positioned outside the guide protrusion 27 by turning the adjustment disc 33. That is, the guide rod 34 cannot contact the guide protrusion 27 at this time. At this time, rotating the active ring 28 will not move the straight arm rod 30.

[0051] When the detection probe needs to swing during the detection process, the distance between the outer end of the straight arm 30 and the active ring 28 is reduced by turning the adjustment disc 33. At this time, the guide rod 34 enters between two adjacent guide protrusions 27, and then the active ring 28 is controlled to rotate, so that the detection probe can swing.

[0052] See Figures 8 to 9 As shown, the aforementioned stabilizing component includes a clamping rod 35, with a clamping sleeve 36 fixed to the lower end of the clamping rod 35. A circular hole is provided at the outer end of the straight arm rod 30, through which the clamping rod 35 passes. A top plate 37 is connected to the upper part of the clamping rod 35, and a tension return spring 38 is connected between the top plate 37 and the straight arm rod 30. The top plate 37 is screwed to the straight arm rod 30. By rotating the top plate 37, the position of the clamping sleeve 36 can be adjusted. Under the action of the return force of the tension return spring 38, the detection probe on the clamping sleeve 36 can make a tighter contact with the clamping tube.

[0053] When connecting the detection probe to the clamping sleeve 36, the clamping sleeve 36 is fitted onto the detection probe. A short locking head is screwed onto the clamping sleeve 36. By turning the short locking head, its inner end is pressed against the detection probe, thus forming a connection between the clamping sleeve 36 and the detection probe.

[0054] In this technical solution, when performing ultrasonic testing on the crimped fitting, the detection probe can be driven to make a circular motion around the crimped fitting by rotating the active ring 28, thereby realizing the detection of the joint of the crimped fitting. When it is inconvenient to move the detection probe, the crimped fitting can also be controlled to rotate. At this time, the detection probe remains in a fixed position, and ultrasonic testing of the crimped fitting can also be realized.

[0055] Specifically, a stabilizing locking rod 39 can be connected to the aforementioned active ring 28. The stabilizing locking rod 39 is screwed onto the active ring 28, and simultaneously, the stabilizing locking rod 39 axially passes through the active ring 28 and the linkage ring 29. By rotating the stabilizing locking rod 39, it can move axially, ultimately pressing the inner end of the stabilizing locking rod 39 against the moving frame 22. At this time, the active ring 28 cannot rotate, but the reference sleeve 26 needs to be able to rotate. The aforementioned reference sleeve 26 is slidably connected to the moving frame 22, that is, an annular recessed groove is provided on the reference sleeve 26. A clamping arm 40 is provided on the moving frame 22. The pressure arm 40 is screwed to the straight support plate 25. At this time, the pressure arm 40 is in a horizontal state. The trajectory adjustment component can be locked by the pressure arm 40. However, when the active ring 28 has been locked and positioned, the pressure arm 40 needs to be adjusted so that the pressure arm 40 can loosen the reference sleeve 26. At this time, the reference sleeve 26 can rotate. Conversely, if the detection probe needs to move around the pressure tube during detection, the reference sleeve 26 needs to be positioned by screwing the pressure arm 40. At this time, the reference sleeve 26 cannot rotate. At this time, the active ring 28 is not connected to the moving frame 22, that is, the active ring 28 can rotate.

[0056] When ultrasonic testing is achieved by rotating the crimping tube, a recess is provided on the reference sleeve 26, and a protrusion is provided at the end of the clamping tube 9. When the position of the detection trajectory component is adjusted by the moving frame 22, the detection trajectory component can be moved until the protrusion at the end of the clamping tube 9 matches the recess on the reference sleeve 26. At this time, the moving frame 22 is locked, so that the reference sleeve 26 can also be rotated when the crimping tube is rotated.

[0057] Finally, the position of the base platform in this application can be adjusted. For example, when the press-fit pipe is tested on the ground, the base platform can be placed on the ground. However, when the press-fit pipe is tested in a trench, the base platform can be located in the trench or directly above the trench, with both ends of the base platform resting on the sides of the trench.

[0058] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An apparatus for ultrasonic testing of crimped tubes, characterized in that, The utility model relates to a kind of detection device for crimping pipe, including: Positioning assembly is positioned to crimp pipe and can drive crimp pipe to rotate when rotating; Auxiliary bracket is used to support crimp pipe; Detection track assembly is connected with auxiliary bracket, for carrying detection probe, so that detection probe can move relative with crimp pipe in circumferential direction; The detection track assembly includes: Control arm, detection probe is installed at the end of control arm, and detection probe can keep contact with crimp pipe during the movement of detection probe.

2. The crimp tube ultrasonic inspection apparatus of claim 1, wherein, The auxiliary bracket includes: Side support arm (20); Flat hanging arm (21) is connected with side support arm (20) vertically, and coaxially arranged with crimp pipe; Moving frame (22) is connected on flat hanging arm (21), and detection track assembly is connected with moving frame (22), and detection track assembly is moved by moving frame (22).

3. The crimp tube ultrasonic inspection apparatus of claim 2, wherein, The moving frame (22) includes: Side vertical frame (23) is semicircular bending; Pull arm (24) is two and connects corresponding end of side vertical frame (23); Straight support plate (25) is connected with two pull arms (24); Side vertical frame (23), straight support plate (25) and two pull arms (24) form detection area, and detection track assembly is installed in detection area.

4. The crimp tube ultrasonic inspection apparatus of claim 3, wherein, Hole slide is arranged on the straight support plate (25), and flat hanging arm (21) is passed in hole slide, so that straight support plate (25) can slide along the length direction of flat hanging arm (21).

5. The crimp tube ultrasonic inspection apparatus of claim 3, wherein, The detection track assembly further includes: Track adjusting part is arranged in detection area and connected with moving frame (22); Linkage ring (29) is connected on track adjusting part; Probe positioning frame (7) is connected with track adjusting part, and control arm is connected with probe positioning frame (7), and probe positioning frame (7) can rotate and drive control arm to move in circumferential direction when rotating.

6. The crimp tube ultrasonic inspection apparatus of claim 5, wherein, The control arm passes through probe positioning frame (7) and linkage ring (29) simultaneously, and compression reset spring (32) is connected between control arm and linkage ring (29), and detection probe swings when control arm moves.

7. The crimp tube ultrasonic testing apparatus of claim 5 or 6, wherein, The control arm includes: Straight arm rod (30) is fixed with flapper (31) in inner end, and is connected with stabilizing assembly in outer end, and detection probe is installed on stabilizing assembly; Adjusting disc (33) is screwed on straight arm rod (30) and located between linkage ring (29) and probe positioning frame (7), and the distance between stabilizing assembly and probe positioning frame (7) can be adjusted by the rotation of adjusting disc (33); Guide rod (34) is connected with straight arm rod (30) vertically.

8. The crimp tube ultrasonic inspection apparatus of claim 7, wherein, Several guide blocks (27) are arranged on track adjusting part, and several guide blocks (27) are arranged along the circumferential direction of track adjusting part, and adjacent two guide blocks (27) are connected by arc surface transition; The guide rod (34) can be located between adjacent two guide blocks (27).

9. The crimp tube ultrasonic inspection apparatus of claim 8, wherein, The stabilizing assembly includes: Positioning pressure rod (35) is connected in outer end of straight arm rod (30) and can move axially; Top disc (37) is connected on positioning pressure rod (35) and located above straight arm rod (30); Stretch reset spring (38) is connected with top disc (37) in one end and connected with straight arm rod (30) in other end. A tight sleeve (36) is connected to the lower end of the tight pressing rod (35) and used for connecting the detection probe.

10. The crimp tube ultrasonic inspection apparatus of claim 1, wherein, The positioning assembly comprises: The positioning frame (7) and the clamping cylinder (9) are provided with a clamping assembly, and the compression tube can pass through the clamping cylinder (9) and be clamped by the clamping assembly. The clamping cylinder (9) is connected with the positioning frame (7), the clamping cylinder (9) can rotate and drive the compression tube to rotate, and the control arm is in a static state during the process.

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