Laser measuring device for detecting outer diameter of seamless steel pipe

Abstract

The invention discloses a laser measuring device for detecting the outer diameter of a seamless steel pipe, which comprises a base and a laser diameter measuring instrument, the base is provided with a movable seat and a fixed seat, the movable seat and the fixed seat are provided with positioning grooves matched with the end part of the steel pipe, and the laser diameter measuring instrument is provided with a measuring groove. The measuring groove is located on the moving path of the moving seat, the base is further provided with a driving seat used for driving the steel pipe to rotate, the driving seat is vertically connected to the base in a lifting mode, and the moving seat moves to drive the steel pipe to gradually pass through the measuring groove of the laser measuring instrument to achieve outer diameter detection. In the detection process, the steel pipe can be synchronously driven to rotate by means of the driving seat, detection of different areas in the circumferential direction is achieved, detection data of the outer diameter of the steel pipe is more comprehensive and accurate, and the measurement accuracy and the detection efficiency are effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of steel pipe measurement, and particularly to a laser measurement device for detecting the outer diameter of seamless steel pipes. Background Art

[0002] A seamless steel pipe is a long steel bar with a hollow cross-section and no welds around its perimeter. From a usage perspective, seamless steel pipes have an advantage in high-pressure and high-strength working environments because they have no welds. For example, in pipeline systems for transporting oil and natural gas, they can withstand high internal pressures and ensure the safe transportation of the medium. At the same time, in the field of mechanical structures, seamless steel pipes can be used to manufacture some components with high requirements for strength and precision due to their good overall performance.

[0003] In the actual production process, it is necessary to measure the outer diameter of the completed seamless steel pipes to determine whether they meet the production requirements. Currently, some measurements of the outer diameter of seamless steel pipes are carried out manually, which has a large measurement workload, low measurement efficiency, and low measurement accuracy, and needs to be further improved and perfected. Summary of the Invention

[0004] In order to further improve the measurement efficiency and accuracy, the present application provides a laser measurement device for detecting the outer diameter of seamless steel pipes.

[0005] The present application provides a laser measurement device for detecting the outer diameter of seamless steel pipes, adopting the following technical solutions: A laser measurement device for detecting the outer diameter of seamless steel pipes includes a base and a laser diameter gauge. The base is provided with a moving seat and a fixed seat. The moving seat and the fixed seat have positioning grooves adapted to the ends of the steel pipe. The laser diameter gauge has a measurement groove, and the measurement groove is located on the moving path of the moving seat. The base is also provided with a driving seat for driving the steel pipe to rotate, and the driving seat is vertically and liftably connected to the base.

[0006] Optionally, the driving seat has a placement groove for placing the steel pipe. A driving wheel for abutting against the steel pipe is rotatably connected in the placement groove. The driving wheels are symmetrically arranged in the placement groove, and a driving source for driving the driving wheels to rotate is provided on the driving seat.

[0007] Optionally, a spraying seat is provided on the base corresponding to the moving path of the steel pipe. The spraying seat is provided with a through groove for the steel pipe to pass through, and a spraying head for spraying is provided at the top of the through groove.

[0008] Optionally, a top seat is provided above the driving seat. The top seat has a pressing block for pressing against the bottom of the steel pipe, and a driving mechanism for driving the top seat and the driving seat to move vertically in opposite directions is provided on the base.

[0009] Optionally, the driving mechanism includes a frame, the driving seat and the top seat are vertically slidably connected to the frame, the frame is rotatably connected to a screw rod, the screw rod has threaded segments with opposite thread rotation directions, the driving seat and the top seat are respectively threadedly connected to the threaded segments with opposite thread rotation directions, and when the driving wheel abuts against the outer wall of the steel pipe, the pressure block abuts against the outer wall of the steel pipe.

[0010] Optionally, a slide groove for the movable seat to move is provided on the base, a chip collecting groove is provided on the bottom wall of the slide groove corresponding to the spray seat, and the bottom of the movable seat has a push plate extending into the chip collecting groove, and the push plate is used to push the iron chips in the chip collecting groove.

[0011] Optionally, a through hole for liquid leakage is provided on the bottom wall of the chip collecting groove, and a liquid receiving box is provided below the base corresponding to the through hole.

[0012] Optionally, the liquid receiving box is fixed on the driving seat, and a vertical groove is provided on the base for vertical lifting of the liquid receiving box. An outlet is provided on one side of the bottom of the liquid receiving box, and a drain port for connecting with the outlet is provided on the side wall of the vertical groove. When the driving seat moves up until the driving wheel abuts against the steel pipe, the outlet and the drain port are in a misaligned state.

[0013] Optionally, a rotating shaft is rotatably connected inside the liquid receiving box, a plurality of stirring blades are distributed on the outer wall of the rotating shaft, the rotating shaft is hollow and penetrated by an electromagnet, a driving member for driving the rotating shaft to rotate is provided on the liquid receiving box, a chip discharge port for connecting with the outlet is opened on the side wall of the vertical groove, and the chip discharge port is lower than the liquid discharge port.

[0014] Optionally, the bottom wall of the liquid receiving box is inclined, and the outlet is located on a lower side of the bottom wall of the liquid receiving box.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. The outer diameter of the steel pipe is detected by driving the moving seat to gradually pass through the measuring slot of the laser measuring instrument. During the detection process, the driving seat can be used to drive the steel pipe to rotate synchronously to detect different areas in the circumferential direction. The detection data of the outer diameter of the steel pipe is more comprehensive and accurate, which effectively improves the measurement accuracy and detection efficiency; 2. Before testing, the surface of the steel pipe is cleaned by spraying with a spray head to remove the iron filings remaining on the surface of the steel pipe to avoid the residual iron filings affecting the measurement results. In addition, the steel pipe is driven to rotate and pressed by the pressure block on the top seat to reduce the impact of the up and down movement of the steel pipe on the test results. The pressure block simultaneously wipes the water stains on the surface of the steel pipe, thereby improving the accuracy of the test; 3. After spraying, the water with iron chips is received by the liquid receiving box. The larger iron chips cannot pass through the through hole and remain in the chip collecting groove. The iron chips in the chip collecting groove are pushed to one side during the movement of the moving seat for easy cleaning. 4. The iron chips with smaller particles in the liquid in the liquid receiving box are adsorbed on the rotating shaft and blades under the action of the electromagnet to achieve solid-liquid separation. After the driving seat moves down, the outlet of the liquid receiving box corresponds to the discharge port to achieve automatic discharge. Then the liquid receiving box moves down again until the outlet corresponds to the chip discharge port. At this time, the power supply of the electromagnet is disconnected, and the iron chips fall from the outlet and are discharged into the chip discharge port, realizing the automatic separation and discharge of the iron chips in the liquid receiving box, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall diagram of an embodiment of the present application.

[0017] Figure 2 It is a cross-sectional view of the embodiment of the present application at the base corresponding to the spray seat.

[0018] Figure 3 It is a structural diagram of the driving seat and the top seat in the embodiment of the present application.

[0019] Figure 4 It is a schematic diagram of the structure of the laser diameter measuring instrument in the embodiment of the present application.

[0020] Description of reference numerals: 1. Base; 2. Laser diameter gauge; 3. Steel pipe; 4. Measuring slot; 5. Moving seat; 6. Fixed seat; 7. Positioning slot; 8. Power source; 9. Driving seat; 10. Spraying seat; 11. Through slot; 12. Spraying head; 13. Frame; 14. Top seat; 15. Placement slot; 16. Driving wheel; 17. Pressure block; 18. Arc slot; 19. Sponge pad; 20. Screw; 21. Driving motor; 22. Slide; 23. Chip collecting slot; 24. Push plate; 25. Through hole; 26. Liquid collecting box; 27. Vertical slot; 28. Outlet; 29. ​​Drain port; 30. Rotating shaft; 31. Stirring blade; 32. Electromagnet; 33. Chip discharge port. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 This application is described in further detail.

[0022] A laser measuring device for detecting the outer diameter of a seamless steel pipe, such as Figure 1-Figure 4As shown, it includes a base 1 and a laser diameter gauge 2. The base 1 is in the shape of a long strip. The laser diameter gauge 2 is arranged in the middle of the base 1. The middle of the laser diameter gauge 2 has a measuring groove 4 for the steel pipe 3 to pass through for diameter measurement. In addition, a movable seat 5 and a fixed seat 6 are also arranged on the base 1. The fixed seat 6 is fixed at one end of the base 1. The movable seat 5 is arranged at the end of the base 1 away from the fixed seat 6. The movable seat 5 is horizontally slidably connected to the base 1. The movable seat 5 and the fixed seat 6 have positioning grooves 7 adapted to the ends of the steel pipe 3. The positioning grooves 7 on the movable seat 5 do not penetrate, and the positioning grooves 7 on the fixed seat 6 are penetrated. A power source 8 for driving the movable seat 5 to move horizontally is arranged on the base 1. The power source 8 can specifically adopt an electric screw rod or a cylinder.

[0023] like Figure 1 and Figure 2 As shown, a driving seat 9 is arranged on both sides of the base 1 corresponding to the laser diameter gauge 2. The driving seat 9 is used to drive the steel pipe 3 to rotate circumferentially, and a spray seat 10 is arranged between the driving seat 9 and the movable seat 5. The spray seat 10 is fixed to the base 1. A through groove 11 is opened on the spray seat 10 for the steel pipe 3 and the movable seat 5 to pass through. A plurality of spray heads 12 are evenly distributed on the top wall of the through groove 11. When the steel pipe 3 passes through the through groove 11 under the push of the movable seat 5, the surface of the steel pipe 3 can be cleaned with the help of the top spray head 12 to remove some iron filings and impurities adhering to the surface of the steel pipe 3, so as to avoid the iron filings and impurities affecting the subsequent measurement results.

[0024] like Figure 1 and Figure 3As shown, a frame 13 fixed thereto is provided on the base 1, and a driving seat 9 is vertically slidably connected to the frame 13. At the same time, a top seat 14 is provided above the frame 13 corresponding to the driving seat 9. A driving mechanism for driving the driving seat 9 and the top seat 14 to move vertically in opposite directions is provided on the frame 13. A placement groove 15 for placing the steel pipe 3 is provided on the driving seat 9. A driving wheel 16 for abutting the bottom surface of the steel pipe 3 is rotatably connected in the placement groove 15. The driving wheel 16 is symmetrically arranged in the placement groove 15. A driving source for driving the driving wheel 16 to rotate is provided on the driving seat 9. The driving source adopts a motor. The rotation of the driving wheel 16 drives the steel pipe 3 to realize circumferential rotation, so that the outer diameter measurement of each circumferential area of ​​the steel pipe 3 can be realized, and the measurement result is more comprehensive and accurate; a pressing block 17 is embedded on the top seat 14, and the pressing block 17 has an arc groove 18 matching the surface of the steel pipe 3. The pressing block 17 and the driving wheel 16 synchronously abut the bottom of the steel pipe 3 during the lifting process. And the top, so that in the process of driving the steel pipe 3 to rotate, the pressure of the pressure block 17 can effectively prevent the steel pipe 3 from moving up and down, effectively improve the rotation stability of the steel pipe 3, so that the measurement result is more guaranteed, and the pressure block 17 can also scrape off the water stains on the surface of the steel pipe 3 during the rotation of the steel pipe 3, to ensure that there are no large amounts of water stains on the surface of the steel pipe 3 before it enters the measuring slot 4 of the laser diameter gauge 2, to avoid water stains affecting the detection results, in order to improve the wiping effect, in this embodiment, the inner wall of the arc groove 18 is embedded with a sponge pad 19 for pressing the surface of the steel pipe 3, the sponge pad 19 also has a certain water absorption, can better wipe the surface of the steel pipe 3, to facilitate subsequent measurement, in other embodiments, a heating wire can also be embedded in the pressure block 17, the heating wire can be used to dry the moisture in the sponge pad 19, so that the sponge pad 19 can be used continuously, during which the heat of the heating wire can also play a certain drying role on the steel pipe 3. When the steel pipe 3 is moved axially to adjust its position, the driving seat 9 can be driven downward and the top seat 14 can be driven upward. At this time, the driving wheel 16 and the pressure block 17 do not contact the steel pipe 3, which facilitates the axial movement of the steel pipe 3, reduces the movement resistance and the wear on the surface of the steel pipe 3.

[0025] like Figure 1 and Figure 3 As shown, the driving mechanism includes a screw rod 20 and a driving motor 21. The screw rod 20 is vertically arranged and rotatably connected to the frame 13. The driving motor 21 is arranged on the top of the frame 13 and drives the screw rod 20 to rotate. The screw rod 20 has thread segments with opposite thread rotation directions. The screw rod 20 passes through the driving seat 9 and the top seat 14, and the thread segments with different thread rotation directions are threadedly connected to the driving seat 9 and the top seat 14 respectively. In this way, the driving seat 9 and the top seat 14 can be driven to rise and fall in the opposite direction by driving the screw rod 20 forward and reversely with the help of the driving motor 21. The structure is simple and practical.

[0026] like Figure 1 and Figure 2As shown, the base 1 is provided with a slide groove 22 for the moving seat 5 to slide, and a chip collecting groove 23 is arranged at the bottom of the slide groove 22 corresponding to the spray seat 10, and a push plate 24 extending into the chip collecting groove 23 is provided at the bottom of the moving seat 5. In this way, when the moving seat 5 retracts to its original position, the push plate 24 can push the iron filings impurities in the chip collecting groove 23 and push them to one side of the chip collecting groove 23 for unified cleaning or direct discharge, so as to facilitate the cleaning operation of the iron filings impurities generated by cleaning.

[0027] like Figure 1 and Figure 2 As shown, a plurality of evenly distributed through holes 25 are vertically opened on the bottom wall of the chip collecting groove 23, and the through holes 25 are used for liquid leakage. A liquid receiving box 26 is arranged below the base 1 corresponding to the chip collecting groove 23, and the liquid receiving box 26 is vertically slidably connected to the base 1, and a vertical groove 27 for the liquid receiving box 26 to slide vertically is arranged in the base 1. One side of the liquid receiving box 26 is fixed to the driving seat 9 and rises and falls accordingly, so that the water sprayed during the cleaning process can leak into the liquid receiving box 26 through the through holes 25 for storage, and larger particles of iron filings and impurities are located in the chip collecting groove 23, so as to realize good solid-liquid separation. When the liquid receiving box 26 moves up to the extreme position, the bottom wall of the chip collecting groove 23 is located in the liquid receiving box 26. When the water level of the liquid receiving box 26 is high, it can be higher than the bottom wall of the chip collecting groove 23, so as to realize the cleaning of the bottom wall of the chip collecting groove 23.

[0028] like Figure 1 and Figure 2 As shown, the bottom wall of the liquid receiving box 26 is inclined, and an outlet 28 is provided at the bottom of one side of the liquid receiving box 26. The outlet 28 is located on the lower side of the bottom wall of the liquid receiving box 26. A drain port 29 for communicating with the outlet 28 is provided on the side wall of the vertical groove 27. The drain port 29 is located within the vertical movement range of the liquid receiving box 26. In this way, when the liquid receiving box 26 moves down to the point where the outlet 28 corresponds to the drain port 29, the liquid in the liquid receiving box 26 can be automatically discharged without manual operation, thereby effectively improving convenience.

[0029] like Figure 1 and Figure 2 As shown, a rotating shaft 30 is rotatably connected to the middle of the liquid receiving box 26, and a plurality of stirring blades 31 are evenly distributed on the rotating shaft 30. The interior of the rotating shaft 30 is hollow and penetrated by an electromagnet 32. A driving member for driving the rotating shaft 30 to rotate is provided on the liquid receiving box 26. The driving member is a motor. When the electromagnet 32 ​​is energized, the rotating shaft 30 and the stirring blades 31 have magnetic force to absorb some fine iron filings, thereby realizing automatic solid-liquid separation of iron filings and water in the liquid receiving box 26. The rotation of the stirring blades 31 can achieve a stirring effect, improve the fluidity of the internal liquid, promote the adsorption of iron filings in the liquid, and also play a good role in promoting the drainage.

[0030] like Figure 1 and Figure 2As shown, a chip discharge port 33 for communicating with the outlet 28 is also provided on the side wall of the vertical groove 27. The height of the chip discharge port 33 is lower than the liquid discharge port 29. The chip discharge port 33 is also located within the vertical movement range of the liquid receiving box 26. That is, after the liquid receiving box 26 moves down to the outlet 28 and corresponds to the liquid discharge port 29 to complete the liquid discharge, the liquid receiving box 26 can be driven down again so that the outlet 28 corresponds to the chip discharge port 33. At this time, the power supply of the electromagnet 32 ​​is disconnected, and the iron chips fall and are discharged from the outlet 28. Finally, they are automatically discharged through the chip discharge port 33, which well realizes the separation and automatic discharge of the iron chips and the liquid in the liquid receiving box 26, which is simple and convenient.

[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A laser measuring device for detecting the outer diameter of a seamless steel pipe, characterized in that: The invention comprises a base (1) and a laser diameter measuring instrument (2), wherein the base (1) is provided with a movable seat (5) and a fixed seat (6), wherein the movable seat (5) and the fixed seat (6) are provided with positioning grooves (7) adapted to the ends of the steel pipe (3), wherein the laser diameter measuring instrument (2) is provided with a measuring groove (4), wherein the measuring groove (4) is located on the moving path of the movable seat (5), and wherein the base (1) is further provided with a driving seat (9) for driving the steel pipe (3) to rotate, wherein the driving seat (9) is vertically raised and lowered and connected to the base (1).

2. A laser measuring device for detecting outer diameter of a seamless steel pipe according to claim 1, characterized in that: The drive seat (9) is provided with a placement groove (15) for placing the steel pipe (3), a driving wheel (16) for contacting the steel pipe (3) is rotatably connected in the placement groove (15), the driving wheel (16) is symmetrically arranged in the placement groove (15), and a driving source for driving the driving wheel (16) to rotate is arranged on the drive seat (9).

3. A laser measuring device for detecting outer diameter of a seamless steel pipe according to claim 2, characterized in that: A spray seat (10) is arranged on the base (1) on the moving path corresponding to the steel pipe (3), a through slot (11) for the steel pipe (3) to pass through is provided on the spray seat (10), and a spray head (12) for spraying is arranged on the top of the through slot (11).

4. A laser measuring device for detecting outer diameter of a seamless steel pipe according to claim 3, characterized in that: A top seat (14) is arranged above the driving seat (9), and a pressing block (17) is provided on the top seat (14) for pressing the bottom of the steel pipe (3). A driving mechanism for driving the top seat (14) and the driving seat (9) to move vertically in opposite directions is arranged on the base (1).

5. A laser measuring device for detecting outer diameter of a seamless steel pipe according to claim 4, characterized in that: The driving mechanism comprises a frame (13), the driving seat (9) and the top seat (14) are vertically slidably connected to the frame (13), a screw rod (20) is rotatably connected to the frame (13), the screw rod (20) has threaded sections with opposite thread rotation directions, the driving seat (9) and the top seat (14) are respectively threadedly connected to the threaded sections with opposite thread rotation directions, and when the driving wheel (16) abuts against the outer wall of the steel pipe (3), the pressure block (17) abuts against the outer wall of the steel pipe (3).

6. A laser measuring device for detecting outer diameter of a seamless steel pipe according to claim 4, characterized in that: The base (1) is provided with a slide groove (22) for the movable seat (5) to move, and a chip collecting groove (23) is provided on the bottom wall of the slide groove (22) corresponding to the spray seat (10). The bottom of the movable seat (5) has a push plate (24) extending into the chip collecting groove (23), and the push plate (24) is used to push iron chips in the chip collecting groove (23).

7. A laser measuring device for detecting outer diameter of a seamless steel pipe according to claim 6, characterized in that: A through hole (25) for leaking liquid is provided on the bottom wall of the chip collecting groove (23), and a liquid receiving box (26) is provided below the base (1) corresponding to the through hole (25).

8. The laser measuring device for detecting the outer diameter of a seamless steel pipe according to claim 7, characterized in that: The liquid receiving box (26) is fixed on the driving seat (9); a vertical slot (27) is provided on the base (1) for the liquid receiving box (26) to be lifted and lowered vertically; an outlet (28) is provided on one side of the bottom of the liquid receiving box (26); a liquid discharge port (29) is provided on the side wall of the vertical slot (27) for communicating with the outlet (28); when the driving seat (9) moves upward until the driving wheel (16) abuts against the steel pipe (3), the outlet (28) and the liquid discharge port (29) are in a dislocated state.

9. A laser measuring device for detecting outer diameter of a seamless steel pipe according to claim 8, characterized in that: A rotating shaft (30) is rotatably connected in the liquid receiving box (26), and a plurality of stirring blades (31) are distributed on the outer wall of the rotating shaft (30). The rotating shaft (30) is hollow and penetrated by an electromagnet (32). A driving member for driving the rotating shaft (30) to rotate is arranged on the liquid receiving box (26). A chip discharge port (33) for communicating with the outlet (28) is opened on the side wall of the vertical groove (27), and the chip discharge port (33) is lower than the liquid discharge port (29).

10. The laser measuring device for detecting the outer diameter of a seamless steel pipe according to claim 9, characterized in that: The bottom wall of the liquid receiving box (26) is arranged to be inclined, and the outlet (28) is located at a lower side of the bottom wall of the liquid receiving box (26).

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