A precision steel pipe detection device

Abstract

This application discloses a precision steel pipe inspection device, belonging to the field of precision steel pipe inspection technology. The device comprises a bracket and a laser measurement assembly. A ring plate is rotatably mounted on the bracket, and a first rotation assembly is provided on the bracket for driving the ring plate to rotate. The laser measurement assembly is mounted on the inner wall of the ring plate, and a positioning mechanism is mounted on the bracket for positioning the steel pipe. The central axis of the steel pipe is aligned with the central axis of the ring plate, and the steel pipe is inserted into the ring plate. The bracket is also provided with a drive mechanism for driving the steel pipe to move. This application facilitates improving the measurement accuracy of steel pipe straightness.

Description

Technical Field

[0001] The present application relates to the technical field of precision steel pipe detection, and in particular to a precision steel pipe detection device. Background Art

[0002] In today's industrial production, precision steel pipes are widely used in numerous fields, such as aerospace, automotive manufacturing, petrochemicals, and electronic information technology. As key components or fluid transmission media, the quality and performance of precision steel pipes directly impact the reliability, safety, and efficiency of entire products and systems. Pipeline straightness is a key indicator of its quality and performance. Precise straightness is crucial for ensuring smooth fluid flow within the pipeline, reducing pressure loss, preventing leaks, and extending pipeline service life.

[0003] In the existing technology, optical measurement methods are gradually applied to pipeline straightness measurement, among which laser measurement is the main optical measurement method. Multiple detection positions are set along the central axis of the steel pipe. After the staff places the steel pipe, they move the laser measurement component along the central axis of the steel pipe to detect multiple detection positions on the steel pipe. After obtaining the data, they perform calculations and processing to obtain the final steel pipe straightness parameters. However, this method can only measure in a single direction. It is difficult to accurately capture the shape changes of the steel pipe in multiple dimensions, and it is unable to fully reflect the straightness of the steel pipe in multiple dimensions, thereby affecting the measurement accuracy of the overall straightness of the steel pipe. Summary of the Invention

[0004] In order to facilitate the measurement of the straightness parameters of steel pipes in multiple dimensions, thereby improving the measurement accuracy of the straightness of steel pipes, the present application provides a precision steel pipe detection device.

[0005] The present application provides a precision steel pipe detection device that adopts the following technical solutions:

[0006] A precision steel pipe detection device includes a bracket and a laser measurement component, a ring plate is rotatably provided on the bracket, and a first rotating component for driving the ring plate to rotate is provided on the bracket; the laser measurement component is installed on the inner wall of the ring plate, and a positioning mechanism for positioning the steel pipe is installed on the bracket, the central axis of the steel pipe is the same as the central axis of the ring plate, and the steel pipe is passed through the ring plate; the bracket is also provided with a driving mechanism for driving the steel pipe to move.

[0007] By adopting the above technical solution, the staff first inserts one end of the steel pipe into the ring plate and positions it through the positioning mechanism so that the steel pipe is located at the central axis position of the ring plate. The steel pipe is sequentially provided with multiple detection positions along its axial direction. The staff can drive the steel pipe to move along its axial direction through the set driving mechanism so that the multiple detection positions on the steel pipe enter the ring plate in sequence. The steel pipe is sequentially provided with multiple detection points in the circumference of the same detection position. When the detection position on the steel pipe enters the ring plate, the staff drives the ring plate to rotate through the first rotating component. The rotation of the ring plate drives the laser measurement component to rotate around the circumference of the steel pipe. The laser measurement component can detect multiple detection points around the circumference of the steel pipe, thereby facilitating the measurement of the straightness of the steel pipe in multiple dimensions, thereby improving the measurement accuracy of the overall straightness of the steel pipe.

[0008] Preferably, the first rotating assembly includes a motor, a rotating rod 1, a gear 1 and a gear 2, the motor is arranged at one end of the bracket, one end of the rotating rod 1 is fixedly arranged on the rotating shaft on the motor, the gear 1 is fixedly arranged on the rotating rod 1, the gear 2 is fixedly arranged on the outer wall of the ring plate, and the gear 1 is meshed with the gear 2.

[0009] By adopting the above technical solution, the staff first turns on the motor, the motor drives the rotating rod 1 to rotate, the rotating rod 1 drives the gear 1 to rotate, the rotation of the gear 1 drives the gear 2 to rotate, and the rotation of the gear 2 drives the ring plate to rotate, thereby reducing the difficulty of rotating the ring plate.

[0010] Preferably, the positioning mechanism includes a hydraulic cylinder and a positioning rod, a support seat is provided at one end of the bracket, the hydraulic cylinder is installed on the support seat, and the central axis of the positioning rod is the same as the central axis of the ring plate; one end of the positioning rod is fixedly provided on the piston rod on the hydraulic cylinder, the positioning rod can be inserted into the steel pipe, and the positioning rod is provided with multiple groups of support components for supporting the inner wall of the steel pipe.

[0011] By adopting the above technical solution, the staff first moves the steel pipe and inserts the steel pipe onto the positioning rod, and then starts the hydraulic cylinder. When the piston rod on the hydraulic cylinder moves, it can trigger multiple groups of support components, and then the multiple groups of support components can be supported on the inner wall of the steel pipe, so that the steel pipe is located at the central axis position of the ring plate, which makes it easier for the staff to measure steel pipes of different sizes, thereby improving the versatility and adaptability of the detection device; the steel pipe is located at the central axis position of the ring plate, so that the laser measuring device can always maintain a consistent distance from the central axis of the steel pipe when moving circumferentially around the steel pipe, thereby improving the measurement accuracy.

[0012] Preferably, a fixing plate 1 is installed on the support seat, and the positioning rod is passed through and slides on the fixing plate 1; the support assembly includes a support plate and a connecting rod, the support plate slides on the fixing plate 1, the fixing plate 1 is provided with a guide member for guiding the support plate, and the support plate is provided with an abutment member for abutting the inner wall of the steel pipe; the two ends of the connecting rod are respectively hinged to the support plate and the positioning rod.

[0013] By adopting the above technical solution, when the hydraulic cylinder is started, the piston rod on the hydraulic cylinder can drive the positioning rod to move, the movement of the positioning rod drives the connecting rod to rotate, and the rotation of the connecting rod drives the support plate to move toward the inner wall of the steel pipe. The provided guide member can guide the support plate. When the support plate drives the abutment member to abut against the inner wall of the support plate, the inner wall of the steel pipe can be supported, and the steel pipe can be positioned.

[0014] Preferably, the driving mechanism includes a third gear, a second rotating rod, a worm, a worm wheel, a third rotating rod, a first belt, and a second belt, wherein the third gear is fixedly arranged at one end of the second rotating rod, and the second rotating rod is rotatably arranged on the bracket;

[0015] A plurality of push blocks 1 are fixedly provided on the outer side wall of the ring plate along its circumference, and the push blocks 1 can be inserted into the tooth grooves on the gear 3; one end of the worm is fixedly provided on the other end of the rotating rod 2, and a fixed plate 2 is vertically slidably provided on the side wall of the bracket, and a plurality of rollers are sequentially provided on the fixed plate 2 along the moving direction of the steel pipe, and the rotating shafts on the rollers are rotatably provided on the side wall of the bracket; the rotating rod 3 is rotatably provided on the bracket, and the worm gear is fixedly provided on the rotating rod 3, and the worm gear is meshed with the worm; the belt 1 is transmitted through the rotating shaft on the rotating rod 3 and one of the rollers; the belt 2 is transmitted through the rotating shafts on multiple rollers 2.

[0016] By adopting the above technical solution, during the process of the ring plate driving the laser measurement component to rotate from the first detection point on the circumference of the steel pipe to the last detection point on the circumference of the steel pipe, the push block on the ring plate is located at a position away from gear three and gradually approaches gear three. During this process, gear three does not rotate; and when the ring plate drives the laser measurement component to rotate from the last detection point on the circumference of the steel pipe to the initial detection point on the circumference of the steel pipe, at this time, several push blocks on the ring plate can be sequentially inserted into the tooth grooves on gear three and push gear three to rotate, gear three drives the rotating rod two to rotate, the rotation of the rotating rod two drives the worm to rotate, the rotation of the worm drives the worm wheel to rotate, and the worm wheel rotates. The rotation drives the rotating rod three to rotate, the rotation of the rotating rod three drives the belt one to rotate, the belt one drives one of the rollers to rotate, one of the rollers drives the belt two to transmit, the belt two drives multiple rollers to rotate at the same time, the rotation of the rollers can drive the steel pipe to move along its central axis direction, when the ring plate drives the laser measuring assembly to rotate to the initial detection point on the circumference of the steel pipe, the roller can simultaneously drive the steel pipe to move to the next detection position, and then the ring plate continues to drive the laser measuring assembly to rotate to detect the next detection position of the steel pipe. The whole process is repeated, which facilitates the detection of multiple detection positions on the steel pipe and reduces the workload of the staff.

[0017] Preferably, a slider is slidably provided on the bracket, a roller is rotatably provided on the slider, the roller is inserted into the belt one, and the roller is attached to the inner wall of the belt one, and an abutment block is fixedly provided on the fixed plate two, and the abutment block is provided with an inclined surface, and the abutment block slides and cooperates with the slider through its inclined surface.

[0018] By adopting the above technical solution, the roller can move in the vertical direction according to the size of the steel pipe. When the size of the detected steel pipe is large, the outer wall of the steel pipe can press the roller to move downward while the steel pipe is positioned. At this time, the distance between the roller and the rotating rod three is reduced, and the belt one becomes loose. At this time, the friction between the belt one and the roller and the rotating rod three is reduced, which may cause the roller to be unable to rotate; therefore, when the roller two drives the fixed plate two to move downward, the fixed plate two drives the abutment block to move, and the abutment block can push the roller shaft to move in the horizontal direction through the inclined surface. The roller shaft can support the belt one, so that the belt one is always in a taut state, thereby ensuring the normal rotation of the roller.

[0019] Preferably, a marking piece for marking the inspection point of the steel pipe is slidably provided on the bracket, and a driving component for driving the marking piece to move is provided on the bracket.

[0020] By adopting the above technical solution, when the laser measurement component is detecting various detection points around a detection position on the steel pipe, the driving component is triggered, and the driving component can drive the marking member to move, and the marking member can mark the next detection point of the steel pipe, so that the staff can find out the various detection positions on the steel pipe, so that the staff can know the detection data corresponding to each detection position on the steel pipe more clearly, and then it is convenient for the staff to find the detection positions on the steel pipe with large data deviations, so as to facilitate subsequent targeted repairs of the steel pipe, reducing the workload of the staff and improving work efficiency.

[0021] Preferably, a sliding rod is slidingly provided on the bracket, and the marking member is slidingly provided on one end of the sliding rod; the driving assembly includes a bidirectional screw and a driving block, the bidirectional screw is rotatably provided on the bracket, a gear four is rotatably provided on the bracket, the gear four is meshed with the gear two, and one end of the bidirectional screw is fixedly provided on the gear four; the driving block is threadedly engaged with the bidirectional screw, the driving block is slidably provided on the bracket, an inclined surface is provided on the driving block, and the driving block is slidably engaged with the sliding rod through its inclined surface.

[0022] By adopting the above technical solution, gear four can be driven to rotate during the rotation of gear two, and the rotation of gear four drives the bidirectional lead screw to rotate. The bidirectional lead screw first drives the driving block to move in the direction close to the slide rod, and the driving block can push the slide rod to move in the direction close to the steel pipe through the inclined surface. The slide rod drives the marking piece to move, and then the marking piece can contact the surface of the steel pipe and mark the surface of the steel pipe. The marking piece can slide on the slide rod according to the size of the steel pipe; when the marking piece has completed marking the steel pipe, gear two continues to rotate to drive the driving block to move in the direction away from the slide rod, and the slide rod can drive the marking piece to a position away from the steel pipe.

[0023] Preferably, a rotating plate is rotatably provided on the bracket, and a through-hole is opened on the rotating plate for the steel pipe to pass through. A plurality of cleaning parts for cleaning the surface of the steel pipe are slidably provided in the through-hole, and a second rotating component for driving the rotating plate to rotate is provided on the bracket.

[0024] By adopting the above technical solution, the staff can insert the steel pipe into the through-hole on the rotating plate while positioning the steel pipe. At this time, the multiple cleaning parts set can be attached to the surface of the steel pipe. During the rotation of the ring plate, the second rotating component is triggered, and the second rotating component can drive the rotating plate to rotate. The rotation of the rotating plate drives the multiple cleaning parts to rotate, and the cleaning parts can clean the surface of the steel pipe, thereby reducing the influence of impurities such as oil or dust on the surface of the steel pipe on the measurement accuracy.

[0025] Preferably, the second rotating assembly includes a gear five and a gear six, the gear five is fixedly disposed on the rotating rod one, the gear six is ​​fixedly disposed on the rotating plate, and the gear five is meshed with the gear six.

[0026] By adopting the above technical solution, when the rotating rod 1 rotates, the rotating rod 1 drives the gear 5 to rotate, the rotation of the gear 5 drives the rotating plate to rotate, and the rotation of the rotating plate drives the cleaning member to rotate, thereby reducing the difficulty of rotating the cleaning member.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] The staff first inserts one end of the steel pipe into the ring plate and positions it through the positioning mechanism so that the steel pipe is located at the central axis of the ring plate. The steel pipe is sequentially provided with multiple detection positions along its axial direction. The staff can drive the steel pipe to move along its axial direction through the provided driving mechanism so that the multiple detection positions on the steel pipe enter the ring plate in sequence. The steel pipe is sequentially provided with multiple detection points in the circumference of the same detection position. When the detection position on the steel pipe enters the ring plate, the staff drives the ring plate to rotate through the first rotating component. The rotation of the ring plate drives the laser measurement component to move around the steel pipe. The laser measuring assembly can detect multiple detection points around the steel pipe during the circumferential rotation of the pipe, making it easier to measure the straightness of the steel pipe in multiple dimensions, thereby improving the measurement accuracy of the overall straightness of the steel pipe. The staff first plugs the steel pipe into the positioning rod, and then turns on the hydraulic cylinder. When the piston rod on the hydraulic cylinder moves, it triggers multiple sets of support assemblies, and then the multiple sets of support assemblies can support the inner wall of the steel pipe, so that the steel pipe is located on the central axis of the ring plate, making it easier for the staff to measure steel pipes of different sizes, thereby improving the versatility and adaptability of the detection device. It is located at the center axis position of the ring plate, so that the distance between the laser measuring device and the center axis of the steel pipe is always consistent when it moves around the circumference of the steel pipe, thereby improving the measurement accuracy; in the process of the ring plate driving the laser measuring assembly to rotate from the first detection point on the circumference of the steel pipe to the last detection point on the circumference of the steel pipe, the push block on the ring plate is located at a position away from gear three and gradually approaches gear three. During this process, gear three does not rotate; and when the ring plate drives the laser measuring assembly to rotate from the last detection point on the circumference of the steel pipe to the initial detection point on the circumference of the steel pipe, the push blocks on the ring plate can be inserted into the tooth grooves on gear three in sequence and push gear three to rotate. Gear three drives multiple rollers to rotate simultaneously. The rotation of the rollers can drive the steel pipe to move along its center axis. When the ring plate drives the laser measuring assembly to rotate to the initial detection point on the circumference of the steel pipe, the rollers can simultaneously drive the steel pipe to move to the next detection position. Then the ring plate continues to drive the laser measuring assembly to rotate to detect the next detection position of the steel pipe. The whole process is repeated, which facilitates the detection of multiple detection positions on the steel pipe and reduces the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0030] Figure 2 This is a structural diagram highlighting the ring plate in an embodiment of the present application;

[0031] Figure 3 This is a structural diagram highlighting the fixing plate 1 in the embodiment of the present application;

[0032] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0033] Figure 5 yes Figure 2 Enlarged view of point B in the middle;

[0034] Figure 6 This is a schematic structural diagram of the highlight roller in the embodiment of the present application;

[0035] Figure 7 This is a schematic structural diagram highlighting the driving block in an embodiment of the present application;

[0036] Figure 8 yes Figure 7 Enlarged view of point C in the middle;

[0037] Figure 9 This is a structural diagram highlighting gear five in an embodiment of the present application;

[0038] Figure 10 yes Figure 9 Enlarged view of point D in the middle.

[0039] Description of reference numerals:

[0040] 1. Bracket; 2. Laser measurement assembly; 3. Placement plate 1; 4. Ring plate; 5. First rotating assembly; 51. Motor; 52. Rotating rod 1; 53. Gear 1; 54. Gear 2; 6. Positioning mechanism; 61. Hydraulic cylinder; 62. Positioning rod; 63. Support seat; 64. Support assembly; 641. Fixing plate 1; 642. Support plate; 643. Connecting rod; 644. T-block; 645. T-slot; 646. Roller; 7. Driving mechanism; 71. Gear 3; 72. Rotating rod 2; 73. Worm; 74. Worm gear; 75. Rotating rod 3; 76. Belt 1; 77. Belt 2; 78. Connecting block; 79. Push block 1; 80. Fixed plate 2; 81. Slide plate; 82. Spring 1; 83. Roller; 84. Support rod; 8. Slider; 9. Guide rod; 10. Return spring; 11. Roller; 12. Abutment block; 13. Marking member; 131. Fixed rod; 132. Pull spring; 14. Drive assembly; 141. Slide rod; 142. Guide rod; 143. Bidirectional lead screw; 144. Drive block; 145. Gear 4; 15. Placement plate 2; 16. Rotating plate; 17. Perforation; 18. Cleaning cloth; 19. Sliding block; 20. Spring 2; 21. Push block 2; 22. Second rotating assembly; 221. Gear 5; 222. Gear 6. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-10 This application is described in further detail.

[0042] The embodiment of the present application discloses a precision steel pipe detection device, such as Figure 1 and Figure 2 As shown, it includes a bracket 1 and a laser measurement component 2. The inner wall of the bracket 1 is fixedly connected to a placement plate 3. The inner wall of the placement plate 3 is rotatably connected to a circular ring plate 4 through a bearing. The laser measurement component 2 is installed on the inner wall of the ring plate 4. The central axis of the steel pipe is the same as the central axis of the ring plate 4, and the steel pipe is passed through the ring plate 4.

[0043] like Figure 1 and Figure 2 As shown, the bracket 1 is provided with a first rotating component 5 for driving the ring plate 4 to rotate. The first rotating component 5 includes a motor 51, a rotating rod 52, a gear 53 and a gear 2 54. The motor 51 is mounted on one end of the bracket 1 by bolts, and the central axis of the rotating shaft on the motor 51 is parallel to the central axis of the ring plate 4; the axis of the rotating rod 52 is parallel to the axis of the rotating shaft of the motor 51, and one end of the rotating rod 52 is fixedly connected to the rotating shaft on the motor 51, and the other end of the rotating rod 52 is plugged into and rotatably connected to the inner wall of the placing plate 3; the gear 1 53 is arranged in the placing plate 3 and is sleeved and fixed on the rotating shaft on the motor 51; the gear 2 54 is arranged in the placing plate 3, and the gear 2 54 is sleeved and fixed on the outer wall of the ring plate 4, and the gear 1 53 is meshed with the gear 2 54.

[0044] like Figure 2 As shown, a positioning mechanism 6 for positioning the steel pipe is installed on the bracket 1. The positioning mechanism 6 includes a hydraulic cylinder 61 and a positioning rod 62. The other end of the bracket 1 relative to the motor 51 is fixedly connected to a support seat 63. The hydraulic cylinder 61 is installed on the top of the support seat 63 by bolts, and the central axis of the piston rod on the hydraulic cylinder 61 is the same as the central axis of the ring plate 4, and the central axis of the positioning rod 62 is the same as the central axis of the ring plate 4; one end of the positioning rod 62 is fixedly connected to the piston rod on the hydraulic cylinder 61, and the positioning rod 62 can be inserted into the steel pipe.

[0045] like Figure 3 and Figure 4 As shown, the positioning rod 62 is provided with multiple groups of support components 64 for supporting the inner wall of the steel pipe. The top of the support seat 63 is fixedly connected to a fixing plate 641. The positioning rod 62 is passed through and horizontally slides in the fixing plate 641. The support component 64 includes a support plate 642 and a connecting rod 643. The support plate 642 slides on the fixing plate 641 along the radial direction of the positioning rod 62. The fixing plate 641 is provided with a guide for guiding the support plate 642. The guide is a T-shaped block 644. One end of the T-shaped block 644 is fixedly connected to the support plate 642, and a T-shaped slot 645 for the T-shaped block 644 to slide is provided on the fixed plate 641; a plurality of abutting members for abutting the inner wall of the steel pipe are provided on the support plate 642, and the abutting members are rollers 646, which are rotatably connected to the side wall of the support plate 642, and the rollers 646 can be rolled to be connected to the inner wall of the steel pipe; a plurality of connecting rods 643 are provided, and the two ends of the connecting rods 643 are respectively hinged to the support plate 642 and the positioning rod 62.

[0046] like Figure 2 and Figure 5 As shown, a driving mechanism 7 for driving the steel pipe to move is provided on opposite sides of the bracket 1. The driving mechanism 7 includes a gear three 71, a rotating rod two 72, a worm 73, a worm wheel 74, a rotating rod three 75, a belt one 76 and a belt two 77. The gear three 71 is arranged in the placement plate one 3. The axis of the rotating rod two 72 is parallel to the axis of the ring plate 4. One end of the rotating rod two 72 is inserted and rotatably connected to the inner wall of the placement plate one 3. The gear three 71 is sleeved and fixed on one end of the rotating rod two 72. The inner wall of the bracket 1 is fixedly connected with a connecting block 78, and the rotating rod two 72 is passed through and rotatably connected to the connecting block 78.

[0047] like Figure 2 、 Figure 5 and Figure 6As shown, a plurality of push blocks 79 are fixedly connected to the outer wall of the ring plate 4 along its circumference, and the push blocks 79 can be inserted into the tooth grooves on the gear 3 71; the axis of the worm 73 is parallel to the axis of the rotating rod 2 72, and one end of the worm 73 is fixedly connected to the other end of the rotating rod 2 72; a fixed plate 2 80 is vertically slidably provided on the top of one side of the bracket 1, and a slide plate 81 is fixedly connected to the bottom of the fixed plate 2 80, and the slide plate 81 is plugged and vertically slidably provided in the top side wall of one side of the bracket 1, and a plurality of springs 82 are vertically provided in the top side wall of one side of the bracket 1, and the upper and lower ends of the spring 82 are fixedly connected to the slide plate 81 and the inner wall of the bracket 1 respectively; the inner side of the fixed plate 2 80 is sequentially provided with a plurality of springs 82 along the moving direction of the steel pipe. There are multiple rollers 83, the central axis of the roller 83 is perpendicular to the central axis of the steel pipe, and the rotating shaft on the roller 83 is rotatably connected to the inner side of the fixed plate 2 80; the inner wall of the bracket 1 is fixedly connected to a support rod 84, and the rotating rod three 75 and one of the rollers 83 are in a vertical plane. The rotating rod three 75 is located below the roller 83, and the rotating rod three 75 is parallel to the rotating shaft on the roller 83. One end of the rotating rod three 75 is rotatably connected to the support rod 84, and the worm gear 74 is fixed on the rotating rod three 75, and the worm gear 74 is meshed with the worm 73; the belt one 76 is transmitted through the rotating rod three 75 and the rotating shaft on one of the rollers 83; the belt two 77 is transmitted through the rotating shafts on multiple rollers 83.

[0048] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the staff first inserts one end of the steel pipe into the ring plate 4, and at the same time inserts the steel pipe into the positioning rod 62, and then turns on the hydraulic cylinder 61. The piston rod on the hydraulic cylinder 61 can drive the positioning rod 62 to move, and the movement of the positioning rod 62 drives the connecting rod 643 to rotate, and the rotation of the connecting rod 643 drives the support plate 642 to move toward the inner wall of the steel pipe. The provided T-shaped block 644 can slide in the T-shaped groove 645, thereby guiding the support plate 642; when the support plate 642 drives the roller 646 to abut against the inner wall of the support plate 642, the inner wall of the steel pipe can be supported, and then the steel pipe can be positioned so that the steel pipe is located at the central axis position of the ring plate 4, which makes it convenient for the staff to measure steel pipes of different sizes, thereby improving the versatility and adaptability of the detection device.

[0049] like Figure 1 and Figure 2As shown, a plurality of detection positions are sequentially provided along the central axis direction of the steel pipe. When the detection position on the steel pipe enters the ring plate 4, the staff turns on the motor 51, and the motor 51 drives the rotating rod 1 52 to rotate, and the rotating rod 1 52 drives the gear 1 53 to rotate, and the rotation of the gear 1 53 drives the gear 2 54 to rotate, and the rotation of the gear 2 54 drives the ring plate 4 to rotate, and the rotation of the ring plate 4 drives the laser measurement component 2 to rotate around the circumference of the steel pipe. The laser measurement component 2 can detect multiple detection points on the circumference of the steel pipe, thereby facilitating the measurement of the straightness of the steel pipe in multiple dimensions, thereby improving the measurement accuracy of the overall straightness of the steel pipe.

[0050] like Figure 2 、 Figure 5 and Figure 6 As shown, a plurality of detection points are sequentially provided in the circumferential direction of the steel pipe at the same detection position. In the process in which the ring plate 4 drives the laser measurement assembly 2 to rotate from the first detection point on the circumference of the steel pipe to the last detection point on the circumference of the steel pipe, the push block 1 79 on the ring plate 4 is located away from the gear 3 71 and gradually approaches the gear 3 71. During this process, the gear 3 71 does not rotate. When the ring plate 4 drives the laser measurement assembly 2 to rotate from the last detection point on the circumference of the steel pipe to the initial detection point on the circumference of the steel pipe, the push blocks 1 79 on the ring plate 4 can be sequentially inserted into the tooth grooves on the gear 3 71 and push the gear 3 71 to rotate. The gear 3 71 drives the rotating rod 2 72 to rotate. The rotation of the rotating rod 2 72 drives the worm 73 to rotate. The rotation of the worm 73 drives The movable worm gear 74 rotates, and the rotation of the worm gear 74 drives the rotating rod three 75 to rotate. The rotation of the rotating rod three 75 drives the belt one 76 to rotate. The belt one 76 drives one of the rollers 83 to rotate, and one of the rollers 83 drives the belt two 77 to transmit. The belt two 77 drives multiple rollers 83 to rotate at the same time. The rotation of the rollers 83 can drive the steel pipe to move along the axis direction. When the ring plate 4 drives the laser measurement component 2 to rotate to the initial detection point on the circumference of the steel pipe, the roller 83 can simultaneously drive the steel pipe to move to the next detection position. Then the ring plate 4 continues to drive the laser measurement component 2 to rotate to detect the next detection position of the steel pipe. The whole process is repeated, which facilitates the detection of multiple detection positions on the steel pipe and reduces the workload of the staff.

[0051] like Figure 2 As shown, since the steel pipe is located at the center axis of the ring plate 4, the distance between the laser measurement component 2 and the center axis of the steel pipe remains consistent when the laser measurement component 2 moves circumferentially around the steel pipe, thereby improving the measurement accuracy.

[0052] like Figure 2 and Figure 5As shown, there are two sliders 8 sliding toward or away from each other in the horizontal direction on the inner side of the bracket 1, and a guide rod 9 is horizontally provided on the inner side wall of the bracket 1. The guide rod 9 is fixedly connected to the inner side wall of the bracket 1, and the guide rod 9 is passed through and slides on the slider 8; two return springs 10 are sleeved on the guide rod 9, and the two return springs 10 are arranged corresponding to the two sliders 8, and the two ends of the return spring 10 are respectively fixedly connected to the slider 8 and the side wall of the bracket 1; a roller 11 is horizontally provided on the side of the slider 8 close to the belt 1 76, one end of the roller 11 is rotatably connected to the slider 8, and the other end of the roller 11 is inserted into the belt 1 76, and the roller 11 is in contact with the inner wall of the belt 1 76, and the inner wall of the fixed plate 2 80 is fixedly connected with an abutment block 12, and the bottom end of the abutment block 12 is provided with an inclined surface, and the abutment block 12 slides and cooperates with the slider 8 through its inclined surface.

[0053] like Figure 2 、 Figure 5 and Figure 6 As shown, the roller 83 can move in the vertical direction according to the size of the steel pipe. When the size of the steel pipe to be detected is large, the outer wall of the steel pipe can press the roller 83 to move downward while the steel pipe is positioned. At this time, the distance between the roller 83 and the rotating rod three 75 is reduced, and the belt one 76 becomes loose. At this time, the friction between the belt one 76 and the roller 83 and the rotating rod three 75 is reduced, which may cause the roller 83 to be unable to rotate; therefore, when the roller 83 drives the fixed plate two 80 to move downward, the fixed plate two 80 drives the abutment block 12 to move, and the abutment block 12 can push the roller shaft 11 to move in the horizontal direction through the inclined surface. The roller shaft 11 can support the belt one 76, so that the belt one 76 is always in a taut state, thereby ensuring the normal rotation of the roller 83.

[0054] like Figure 7 and Figure 8 As shown, a marking piece 13 for marking the inspection point of the steel pipe is provided on the bracket 1 for horizontal sliding in a direction perpendicular to the central axis of the steel pipe. The marking piece 13 can be a marking pen.

[0055] like Figure 7 and Figure 8As shown, the bracket 1 is provided with a driving assembly 14 for driving the marking member 13 to move, and a sliding rod 141 is provided on the bracket 1 for horizontal sliding along the vertical direction of the central axis of the steel pipe; a fixing rod 131 is horizontally provided on the inner side wall of the bracket, and the central axis of the fixing rod 131 is perpendicular to the central axis of the steel pipe. One end of the fixing rod 131 is fixedly connected to the inner side wall of the bracket 1, and the fixing rod 131 is passed through and slides on the sliding rod 141. A pulling spring 132 is provided on the fixing rod 131 to pull The two ends of the spring 132 are respectively fixedly connected to the slide rod 141 and the inner wall of the bracket 1; the slide rod 141 is arranged vertically, and the marking member 13 slides horizontally on the top of the slide rod 141 along the vertical direction of the central axis of the steel pipe. A guide rod 142 is provided at the top of the slide rod 141, and the central axis of the guide rod 142 is parallel to the vertical direction of the central axis of the steel pipe. One end of the guide rod 142 is fixedly connected to the marking member 13, and the other end of the guide rod 142 is passed through and slidably connected to the top of the slide rod 141.

[0056] like Figure 7 and Figure 8 As shown, the driving assembly 14 includes a bidirectional screw 143 and a driving block 144. The central axis of the bidirectional screw 143 is parallel to the central axis of the ring plate 4. One end of the bidirectional screw 143 is passed through and rotatably connected to the inner wall of the placing plate 3. A gear 4 145 is provided in the placing plate 3. The gear 4 145 is rotatably connected to the inner wall of the placing plate 3. The gear 4 145 is engaged with the gear 2 54, and one end of the bidirectional screw 143 is fixedly connected to the gear 4 145; the bidirectional screw 143 is inserted into the driving block 144, and the driving block 144 is threadedly engaged with the bidirectional screw 143. The driving block 144 is horizontally slidably connected to the inner side wall of the bracket 1 along the central axis direction of the bidirectional screw 143. The driving block 144 is provided with an inclined surface on the side close to the slide rod 141, and the driving block 144 is slidably engaged with the slide rod 141 through its inclined surface.

[0057] like Figure 7 and Figure 8As shown, in the process of the laser measurement assembly 2 detecting various detection points on the circumference of a detection position on the steel pipe, the rotation of gear 2 54 can drive gear 4 145 to rotate, and the rotation of gear 4 145 drives the bidirectional screw 143 to rotate. The bidirectional screw 143 first drives the driving block 144 to move in the direction close to the slide bar 141. The driving block 144 can push the slide bar 141 to move in the direction close to the steel pipe through the inclined surface, and the pulling spring 132 is stretched. The slide bar 141 drives the marking member 13 to move, and then the marking member 13 can contact the surface of the steel pipe. The marking member 13 can mark the next detection point of the steel pipe, so that the staff can find the steel pipe easily. Each detection position on the pipe is used so that the staff can know the detection data corresponding to each detection position on the steel pipe more clearly, and then it is convenient for the staff to find the detection positions with large data deviation on the steel pipe, so as to facilitate the subsequent targeted repair of the steel pipe, reducing the work intensity of the staff and improving work efficiency; the marking member 13 can slide on the slide bar 141 according to the size of the steel pipe; when the marking member 13 completes the marking of the steel pipe, the gear 2 54 continues to rotate to drive the driving block 144 to move away from the slide bar 141, and the elastic force of the spring 142 can pull the slide bar 141 and the marking member 13 to a position away from the steel pipe.

[0058] like Figure 1 、 Figure 9 and Figure 10 As shown, the inner wall of the bracket 1 is fixedly connected to a placing plate 2 15, and the inner wall of the placing plate 2 15 is rotatably connected to a circular rotating plate 16 through a bearing. The central axis of the rotating plate 16 is the same as the central axis of the steel pipe, and a through hole 17 for the steel pipe to pass through is opened at the central axis of the rotating plate 16. There are multiple cleaning parts for cleaning the surface of the steel pipe in the through hole 17, which slide along the radial direction of the steel pipe. The cleaning parts are cleaning cloths 18. The side of the cleaning cloth 18 facing away from the steel pipe is fixedly connected to a sliding block 19. The sliding block 19 is passed through and slidably connected to the inner wall of the rotating plate 16. A spring 20 is provided between the sliding block 19 and the rotating plate 16. The two ends of the spring 20 are respectively fixedly connected to the sliding block 19 and the inner wall of the rotating plate 16. One end of the cleaning cloth 18 located at the entrance of the through hole 17 is fixedly connected to a push block 21. The push block 21 is provided with an inclined surface on the side close to the steel pipe, and the push block 21 can be slidably connected to the end of the steel pipe through the inclined surface.

[0059] like Figure 1 and Figure 9 As shown, the bracket 1 is provided with a second rotating component 22 for driving the rotating plate 16 to rotate. The second rotating component 22 includes a gear five 221 and a gear six 222. The gear five 221 is sleeved and fixed on the rotating rod one 52, and the gear six 222 is sleeved and fixed on the rotating plate 16. The gear five 221 and the gear six 222 are engaged with each other.

[0060] like Figure 1 、 Figure 9 and Figure 10 As shown, while the staff is positioning the steel pipe, they can insert the steel pipe into the through-hole 17 on the rotating plate 16. The end of the steel pipe can first contact the push block 21, and then the end of the steel pipe can push the push block 21 to move through the inclined surface on the push block 21, and the push block drives the cleaning cloth 18 to move, and the spring 20 is compressed. When the steel pipe is inserted into the through-hole 172, the elastic force of the spring 20 can push the cleaning cloth 18 to fit the surface of the steel pipe. During the rotation of the rotating rod 1 52 driving the ring plate 4, the rotating rod 1 52 can simultaneously drive the gear 5 221 to rotate, and the rotation of the gear 5 221 drives the gear 6 222 to rotate, and the gear 6 222 drives the rotating plate 16 to rotate. The rotation of the rotating plate 16 drives the cleaning cloth 18 to rotate, and the cleaning cloth 18 can clean the surface of the steel pipe, thereby reducing the influence of impurities such as oil or dust on the surface of the steel pipe on the measurement accuracy.

[0061] The implementation principle of the embodiment of the present application is: the staff first inserts one end of the steel pipe into the ring plate 4 and positions it through the positioning mechanism 6 so that the steel pipe is located at the central axis position of the ring plate 4. The steel pipe is sequentially provided with multiple detection positions along its axial direction. The staff can drive the steel pipe to move along its axial direction through the set driving mechanism 7 so that the multiple detection positions on the steel pipe enter the ring plate 4 in sequence. The steel pipe is sequentially provided with multiple detection points in the circumference of the same detection position. When the detection position on the steel pipe enters the ring plate 4, the staff drives the ring plate 4 to rotate through the first rotating component 5. The rotation of the ring plate 4 drives the laser measurement component 2 to rotate around the circumference of the steel pipe. The laser measurement component 2 can detect multiple detection points on the circumference of the steel pipe, thereby facilitating the measurement of the straightness of the steel pipe in multiple dimensions, thereby improving the measurement accuracy of the overall straightness of the steel pipe.

[0062] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A precision steel pipe detection device, characterized by: The invention comprises a bracket (1) and a laser measuring assembly (2), wherein a ring plate (4) is rotatably provided on the bracket (1), and a first rotating assembly (5) for driving the ring plate (4) to rotate is provided on the bracket (1); the laser measuring assembly (2) is mounted on the inner wall of the ring plate (4), and a positioning mechanism (6) for positioning a steel pipe is mounted on the bracket (1), wherein the central axis of the steel pipe is the same as the central axis of the ring plate (4), and the steel pipe is passed through the ring plate (4); the bracket (1) is also provided with a driving mechanism (7) for driving the steel pipe to move; The driving mechanism (7) includes a gear three (71), a rotating rod two (72), a worm (73), a worm wheel (74), a rotating rod three (75), a belt one (76) and a belt two (77), wherein the gear three (71) is fixedly arranged at one end of the rotating rod two (72), and the rotating rod two (72) is rotatably arranged on the bracket (1); A plurality of push blocks (79) are fixedly provided on the outer wall of the ring plate (4) along its circumference, and the push blocks (79) can be inserted into the tooth grooves on the gear (71); one end of the worm (73) is fixedly provided on the other end of the rotating rod (72); a fixed plate (80) is vertically slidably provided on the side wall of the bracket (1); the fixed plate (80) is provided with a plurality of rollers (83) in sequence along the moving direction of the steel pipe, and the rotating shafts on the rollers (83) are rotatably provided on the side of the bracket (1). wall; the rotating rod three (75) is rotatably arranged on the bracket (1); the worm wheel (74) is fixedly arranged on the rotating rod three (75), and the worm wheel (74) is meshed with the worm (73); the belt one (76) is driven by the rotating shaft on the rotating rod three (75) and one of the rollers (83); the belt two (77) is driven by the rotating shafts on multiple rollers (83), and the rotation of the rollers (83) can drive the steel pipe to move along the axis thereof; A slider (8) is slidably mounted on the bracket (1), and a roller (11) is rotatably mounted on the slider (8). The roller (11) is inserted into the belt one (76), and the roller (11) is attached to the inner wall of the belt one (76). A contact block (12) is fixedly mounted on the fixed plate two (80), and the contact block (12) is provided with an inclined surface. The contact block (12) is slidably mounted on the slider (8) through its inclined surface.

2. A precision steel pipe detection device according to claim 1, characterized in that: The first rotating assembly (5) includes a motor (51), a rotating rod (52), a gear (53) and a gear (54), wherein the motor (51) is arranged at one end of the bracket (1), one end of the rotating rod (52) is fixedly arranged on the rotating shaft of the motor (51), the gear (53) is fixedly arranged on the rotating rod (52), the gear (54) is fixedly arranged on the outer wall of the ring plate (4), and the gear (53) is meshed with the gear (54).

3. The precision steel pipe detection device according to claim 1, characterized in that: The positioning mechanism (6) includes a hydraulic cylinder (61) and a positioning rod (62). A support seat (63) is provided at one end of the bracket (1). The hydraulic cylinder (61) is mounted on the support seat (63). The central axis of the positioning rod (62) is the same as the central axis of the ring plate (4). One end of the positioning rod (62) is fixed to the piston rod on the hydraulic cylinder (61). The positioning rod (62) can be inserted into a steel pipe. The positioning rod (62) is provided with multiple groups of support components (64) for supporting the inner wall of the steel pipe.

4. A precision steel pipe detection device according to claim 3, characterized in that: A fixing plate (641) is mounted on the support seat (63), and the positioning rod (62) is passed through and slides on the fixing plate (641); the support assembly (64) includes a support plate (642) and a connecting rod (643), the support plate (642) slides on the fixing plate (641), the fixing plate (641) is provided with a guide member for guiding the support plate (642), and the support plate (642) is provided with an abutment member for abutting the inner wall of the steel pipe; the two ends of the connecting rod (643) are respectively hinged to the support plate (642) and the positioning rod (62).

5. The precision steel pipe detection device according to claim 2, characterized in that: A marking piece (13) for marking a steel pipe inspection point is slidably provided on the bracket (1), and a driving component (14) for driving the marking piece (13) to move is provided on the bracket (1).

6. The precision steel pipe detection device according to claim 5, characterized in that: A slide bar (141) is slidably provided on the bracket (1), and the marking member (13) is slidably provided on one end of the slide bar (141); the driving assembly (14) includes a bidirectional screw (143) and a driving block (144); the bidirectional screw (143) is rotatably provided on the bracket (1); a gear four (145) is rotatably provided on the bracket (1); the gear four (145) is meshed with the gear two (54), and one end of the bidirectional screw (143) is fixedly provided on the gear four (145); the driving block (144) is threadedly engaged with the bidirectional screw (143); the driving block (144) is slidably provided on the bracket (1); an inclined surface is provided on the driving block (144); the driving block (144) is slidably engaged with the slide bar (141) through its inclined surface.

7. The precision steel pipe detection device according to claim 2, characterized in that: A rotating plate (16) is rotatably provided on the bracket (1), and a through hole (17) for the steel pipe to pass through is provided on the rotating plate (16). A plurality of cleaning members for cleaning the surface of the steel pipe are slidably provided in the through hole (17). A second rotating component (22) for driving the rotating plate (16) to rotate is provided on the bracket (1).

8. The precision steel pipe detection device according to claim 7, characterized in that: The second rotating assembly (22) includes a gear five (221) and a gear six (222), wherein the gear five (221) is fixedly disposed on the rotating rod one (52), and the gear six (222) is fixedly disposed on the rotating plate (16), and the gear five (221) is meshed with the gear six (222).

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