Laser pipe cutting chuck centering precision detection device

Abstract

The invention discloses a laser pipe cutting chuck centering precision detection device, and relates to the technical field of laser pipe cutting chucks, the laser pipe cutting chuck centering precision detection device comprises a mounting table, two sides of the mounting table are respectively provided with a tail clamp and a main clamp, and the mounting table is fixedly provided with a controller; an automatic detection assembly used for detecting the centering precision of the chuck is arranged between the tail clamp and the main clamp and comprises a fixing unit and a detection unit, the detection unit comprises a mounting frame, the mounting frame is fixedly connected to one side of the mounting base, a second mounting block is arranged on the mounting frame in a sliding mode, and a fourth drive is fixedly connected to the side wall of the mounting frame; an output shaft of the fourth drive is fixedly connected with a first threaded rod, and one end, far away from the fourth drive, of the first threaded rod is rotationally connected with the mounting frame through a bearing, so that errors caused by manually searching and detecting small particles on the surface of the core rod are effectively reduced, and the detection precision of the centering precision of the chuck is further improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser pipe cutting chucks, and particularly relates to a device for detecting the centering accuracy of a laser pipe cutting chuck. Background Art

[0002] A laser pipe cutting chuck is a fixture device specifically designed for laser cutting of pipes, used to fix and position pipes (such as round pipes, square pipes, rectangular pipes, etc.) on a laser cutting machine to ensure high precision and stability during the cutting process. It is an important component of laser pipe cutting equipment and is widely used in fields such as metal processing, construction, automobile manufacturing, and aerospace.

[0003] Among the existing methods for centering detection of laser pipe cutting chucks, mechanical centering detection is a relatively common method. It uses mechanical devices (such as dial indicators, micrometers, or centering rods) to contact the surfaces of the chuck and the pipe, and judges the centering accuracy by measuring the radial runout or deviation. Its advantages are low cost and simple operation; however, it also has obvious disadvantages: when there are tiny particles on the surface of the detection mandrel, it is necessary to manually search for the tiny particles on the surface of the detection mandrel, and the manual search method may cause a large detection error, which is not convenient for detecting the centering accuracy of the chuck. This phenomenon has also become a problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for detecting the centering accuracy of a laser pipe cutting chuck in view of the existing technical defects, so as to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A device for detecting the centering accuracy of a laser pipe cutting chuck, including an installation tabletop, a tail chuck and a main chuck are respectively arranged on both sides of the installation tabletop, a controller is fixedly installed on the installation tabletop, and an automatic detection component for detecting the centering accuracy of the chuck is arranged between the tail chuck and the main chuck; The automatic detection component includes a fixing unit and a detection unit; The present invention further explains that the fixing unit includes a mounting seat, the mounting seat can move in the vertical direction, a third drive is arranged on the installation tabletop, the third drive is arranged between the installation tabletop and the mounting seat, the fixed end and the output end of the third drive are respectively fixedly connected to the installation tabletop and the mounting seat, a first fixing seat and a second fixing seat are slidably arranged on the mounting seat through guide rails, the first fixing seat is used for cleaning the surface of the mandrel, and the second fixing seat is used for fixing the detection mandrel.

[0006] The present invention is further described as follows. The detection unit includes a mounting frame fixedly connected to one side of the mounting base. A second mounting block is slidably arranged on the mounting frame. A fourth drive is fixedly connected to the side wall of the mounting frame. The output shaft of the fourth drive is fixedly connected to a first threaded rod, and the end of the first threaded rod away from the fourth drive is rotatably connected to the mounting frame through a bearing.

[0007] The present invention is further described as follows. The first threaded rod is in threaded connection with the second mounting block. A first mounting block is arranged in the second mounting block. A first drive is fixedly connected to the top of the second mounting block. The output shaft of the first drive is fixedly connected vertically downward to a second threaded rod, which is vertically arranged in the second mounting block. The end of the second threaded rod away from the first drive is rotatably connected to the bottom plate of the second mounting block through a bearing. The second threaded rod is in threaded connection with the first mounting block.

[0008] The present invention is further described as follows. A second drive is fixedly connected to the bottom of the first mounting block. One end of the second drive is fixedly connected to the bottom of the first mounting block. The output end of the second drive is fixedly connected to a mounting plate. A detection rod is fixedly connected to the bottom of the mounting plate. An electronic dial indicator and a micro camera are embedded in the bottom of the detection rod. The electronic dial indicator and the micro camera are both electrically connected to the controller.

[0009] The present invention is further described as follows. There are two groups of the first fixing seats, which are symmetrically arranged on both sides of the mounting base. There are two groups of the second fixing seats, which are symmetrically arranged between the two groups of the first fixing seats. Both of the two first fixing seats and the two second fixing seats are fixedly connected by connecting rods. Through holes are formed in the first fixing seats, and clamping holes are formed in the second fixing seats. The cleaning holes and the clamping holes are coaxially arranged.

[0010] The present invention is further described as follows. A cleaning component is arranged inside the first fixing seat. The cleaning component includes a pump body, a cavity, a cleaning hole, and a cleaning cloth. The cavity is formed inside the first fixing seat. The pump body is fixedly connected to the first mounting block. The output end of the pump body is fixedly connected to an air outlet pipe. The end of the air outlet pipe away from the pump body is connected to the input end of the cavity through a pipeline. An air outlet branch pipe is fixedly connected to the first fixing seat close to one side of the main clamp. The end of the air outlet branch pipe away from the main clamp is communicated with the air outlet pipe. The cleaning hole is formed in the inner wall of the cavity. The cleaning cloth is fixedly connected to both ends of the through hole. The cleaning hole is located between the two cleaning cloths on both sides.

[0011] The present invention is further described as follows. Guide rods are slidably arranged at the four corners of the mounting base. Guide holes are provided at the four corners of the mounting base. The bottom of the guide rod is fixedly connected to the mounting table surface. The guide rod is slidably arranged between the mounting base through the guide hole.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, by setting up an automatic detection component, the movable detection rod in the automatic detection component, the electronic micrometer and the micro camera embedded in the detection rod are used to detect the tiny particles existing on the surface of the detection mandrel. Then, the detection mandrel is fixed by the second fixing seat, and the surface of the mandrel is cleaned by the first fixing seat, effectively reducing the error caused by manually searching for tiny particles existing on the surface of the detection mandrel, thereby improving the accuracy of detecting the centering accuracy of the chuck. Description of the Drawings

[0013] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the front view plane structural schematic diagram of the present invention; Figure 3 is the three-dimensional structural schematic diagram of the mounting frame of the present invention; Figure 4 is the sectional structural schematic diagram of the first fixing seat of the present invention; Figure 5 is the detection position schematic diagram of the present invention; Figure 6 is the sectional structural schematic diagram of the detection rod of the present invention.

[0014] In the figure: 1, mounting table surface; 2, tailstock; 3, main chuck; 4, controller; 5, mounting base; 51, guide hole; 6, mounting frame; 7, first drive; 8, pump body; 9, first mounting block; 10, air outlet pipe; 101, air outlet branch pipe; 11, first fixing seat; 111, cavity; 112, cleaning hole; 113, cleaning cloth; 12, second fixing seat; 13, guide rod; 14, second drive; 15, detection rod; 16, mounting plate; 17, second mounting block; 18, first threaded rod; 19, second threaded rod; 20, third drive; 21, fourth drive; 22, micro camera; 23, electronic micrometer. Detailed Embodiments

[0015] The technical solution of the present invention will be further described in detail in conjunction with the preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the scope of protection of the present invention.

[0016] Please refer to Figure 1-6 , the present invention provides a technical solution: a device for detecting the centering accuracy of a laser pipe cutting chuck, including an installation table 1, a tailstock 2 is arranged on the left side of the installation table 1, a main chuck 3 is fixedly connected to the right side of the installation table 1, a controller 4 is fixedly connected to the installation table 1, and an automatic detection component for detecting the centering accuracy of the chuck is arranged between the tailstock 2 and the main chuck 3; The automatic detection component includes a fixing unit and a detection unit; The fixing unit includes a mounting seat 5 that can move in the vertical direction. A third drive 20 is fixedly connected to the installation table 1. The fixed end of the third drive 20 is fixedly connected to the installation table 1, and the output end of the third drive 20 is fixedly connected to the bottom of the mounting seat 5. A first fixing seat 11 and a second fixing seat 12 are slidably arranged on the mounting seat 5 through guide rails. The first fixing seat 11 is used for cleaning the surface of the mandrel, and the second fixing seat 12 is used for fixing the detection mandrel; The detection unit includes a mounting frame 6, the mounting frame 6 is fixedly connected to one side of the mounting seat 5, a second mounting block 17 is slidably arranged on the mounting frame 6, a fourth drive 21 is fixedly connected to the side wall of the mounting frame 6, and the output shaft of the fourth drive 21 is fixedly connected to a first threaded rod 18. The end of the first threaded rod 18 away from the fourth drive 21 is rotatably connected to the mounting frame 6 through a bearing. The first threaded rod 18 is threadedly connected to the second mounting block 17. A first mounting block 9 is arranged in the second mounting block 17. The top of the second mounting block 17 is fixedly connected to a first drive 7. The output shaft of the first drive 7 is vertically downward and fixedly connected to a second threaded rod 19. The second threaded rod 19 is vertically arranged in the second mounting block 17. The end of the second threaded rod 19 away from the first drive 7 is rotatably connected to the bottom plate of the second mounting block 17 through a bearing. The second threaded rod 19 is threadedly connected to the first mounting block 9. The bottom of the first mounting block 9 is fixedly connected to a second drive 14. One end of the second drive 14 is fixedly connected to the bottom of the first mounting block 9, and the output end of the second drive 14 is fixedly connected to a mounting plate 16. A detection rod 15 is fixedly connected to the bottom of the mounting plate 16. An electronic dial indicator 23 and a micro camera 22 are embedded in the bottom of the detection rod 15. The electronic dial indicator 23 and the micro camera 22 are both electrically connected to the controller 4.

[0017] Specifically, the first drive 7 and the fourth drive 21 can be motors.

[0018] The rotation of the output shaft of the fourth drive 21 is used to drive the first threaded rod 18 to rotate, and the first threaded rod 18 is threadedly connected to the second mounting block 17 to indirectly drive the second mounting block 17 to slide in the horizontal direction; the rotation of the output shaft of the first drive 7 is used to drive the second threaded rod 19 to rotate, and the second threaded rod 19 is threadedly connected to the first mounting block 9 to indirectly drive the first mounting block 9 to move in the vertical direction.

[0019] The second drive 14 can be a six-axis robotic arm, and the six-axis robotic arm operates through a programming program built into the controller 4, and the third drive 20 can be a cylinder.

[0020] The telescoping of the output end of the second drive 14 is used to control the movement of the detection rod 15; the telescoping of the output end of the third drive 20 is used to control the movement of the mounting seat 5 in the vertical direction, indirectly driving the adjustment of the mounting positions of the first fixing seat 11 and the second fixing seat 12 in the vertical direction.

[0021] Please refer to Figure 3 and Figure 4 , two groups of the first fixing seats 11 are provided, and the two groups of the first fixing seats 11 are symmetrically arranged on both sides of the mounting seat 5. Two groups of the second fixing seats 12 are provided, and the two groups of the second fixing seats 12 are symmetrically arranged between the two groups of the first fixing seats 11. The two first fixing seats 11 and the two second fixing seats 12 are fixedly connected by connecting rods. Through holes are formed in the first fixing seats 11, and clamping holes are formed in the second fixing seats 12.

[0022] A cleaning assembly is arranged inside the first fixing seat 11. The cleaning assembly includes a pump body 8, a cavity 111, cleaning holes 112, and a cleaning cloth 113. The cavity 111 is formed inside the first fixing seat 11. The pump body 8 is fixedly connected to the first mounting block 9. An air outlet pipe 10 is fixedly connected to the output end of the pump body 8. One end of the air outlet pipe 10 away from the pump body 8 is connected to the input end of the cavity 111 through a pipeline. An air outlet branch pipe 101 is fixedly connected to the first fixing seat 11 near the main clamp 3. One end of the air outlet branch pipe 101 away from the main clamp 3 is communicated with the air outlet pipe 10. The cleaning holes 112 are formed in the inner wall of the cavity 111. The cleaning cloth 113 is fixedly connected to both ends of the through hole. The cleaning holes 112 are located between the two cleaning cloths 113 on both sides.

[0023] Specifically, the pump body 8 can be an air pump, the air outlet pipe 10 and the air outlet branch pipe 101 can be rubber hoses, and the cleaning cloth 113 can be non-woven fabric.

[0024] The pump body 8 pumps the gas for detecting the surface cleanliness of the steel bar to both sides of the first fixing seat 11 through the air outlet pipe 10 and the air outlet branch pipe 101. Multiple groups of cleaning holes 112 arranged in a circumferential array on the inner wall of the cavity 111 are used to blow the cleaning gas in the cavity 111 to the surface of the steel bar for detection.

[0025] Please refer to Figure 3 , guide rods 13 are slidably arranged at the four corners of the mounting seat 5. Guide holes 51 are opened at the four corners of the mounting seat 5. The bottom of the guide rod 13 is fixedly connected to the mounting table surface 1, and the guide rod 13 is slidably arranged with the mounting seat 5 through the guide holes 51.

[0026] Working principle: Refer to Figures 3 and Figure 5 , tighten the fixing screw of the tailstock 2, remove the dust cover of the tailstock 2, and measure the upper bus a of the rotating part of the head of the tailstock 2. Use the controller 4 to control the second drive 14 to move the detection rod 15 to the rotating part of the head of the tailstock 2. The controller 4 has built-in centering accuracy qualified data for judging whether the centering accuracy of the chuck is qualified and a programming program for controlling the operation of the second drive 14. When the electronic dial indicator 23 embedded in the detection rod 15 is adjusted to contact the rotating part of the head of the tailstock 2 by starting the second drive 14 using the programming program built in the controller 4, at this time, the controller 4 controls the electronic dial indicator 23 to remain stationary at this position, and then the tailstock 2 is moved horizontally through its bottom guide rail. At this time, the electronic dial indicator 23 continuously contacts the upper bus a of the rotating part of the head of the tailstock 2, and the runout value of the entire upper bus a is detected using the electronic dial indicator 23. After the detection is completed, the electronic dial indicator 23 converts the detected data into an electrical signal and sends it to the controller 4. The controller 4 compares the received detection data with the centering accuracy qualified data built in the controller 4. The runout value of the upper bus a measured by the electronic dial indicator 23 should be within 0.05 mm; If the runout value of the upper bus a transmitted back by the electronic dial indicator 23 is greater than 0.05 mm, the method of padding copper sheets at two points on the bottom plane of the chuck of the tailstock 2 can be adopted for adjustment until the runout value of the upper bus a is adjusted within 0.05 mm.

[0027] Refer to Figure 3 and Figure 5, measure the side bus bar b of the rotating part of the head of the tail chuck 2. Use the controller 4 to control the second drive 14 to move the detection rod 15 to the side bus bar b of the tail chuck 2. When the electronic dial indicator 23 embedded inside the detection rod 15 is adjusted to contact the side bus bar b of the tail chuck 2 by starting the second drive 14 using the programming program built into the controller 4, at this time, the controller 4 controls the electronic dial indicator 23 to remain stationary at this position. Then, move the tail chuck 2 horizontally through the guide rail at its bottom. The electronic dial indicator 23 continuously contacts the side bus bar b of the tail chuck 2, and use the electronic dial indicator 23 to detect the runout value of the entire side bus bar b. After the detection is completed, the electronic dial indicator 23 converts the detected data into an electrical signal and sends it to the controller 4. The controller 4 compares the received detection data with the qualified centering accuracy data built into the controller 4. The runout value of the side bus bar b measured by the electronic dial indicator 23 should be within 0.05 mm.

[0028] If the runout value of the side bus bar b transmitted back by the electronic dial indicator 23 is greater than 0.05 mm, the method of padding copper sheets at two points on the bottom plane of the chuck mounting of the tail chuck 2 can be adopted for adjustment until the runout value of the side bus bar b is adjusted within 0.05 mm. After the adjustment is completed, check the accuracy of the upper bus bar a again according to the inspection steps of the upper bus bar a. If there is an out-of-tolerance situation, the method of padding copper sheets at two points on the bottom plane of the chuck mounting of the tail chuck 2 can be adopted for adjustment, and finally ensure that the error values of the upper bus bar a and the side bus bar b of the tail chuck are within 0.05 mm. Detecting the runout values of the upper bus bar a and the side bus bar b of the tail chuck 2 is to further ensure the accuracy of the measurement data of the chuck centering accuracy, and at the same time further reduce the error of the chuck centering accuracy detection caused by the runout of the upper bus bar a and the side bus bar b of the tail chuck.

[0029] Taking the center of the tail chuck 2 (the rotation center of the tail chuck 2) as the reference, measure the perpendicularity of the reference plane on the back of the main chuck 3 relative to the rotation center of the tail chuck 2. The measurement and adjustment method is as follows: Reference Figure 3 and Figure 5 , measure the perpendicularity of the reference plane on the back of the main chuck 3 relative to the rotation center of the tail chuck 2. Use the controller 4 to control the second drive 14 to closely fit the detection rod 15 with the tail chuck 2. Use the programming program built into the controller 4 to start the second drive 14 to adjust the electronic dial indicator 23 embedded inside the detection rod 15 to the detection trajectory c (reference Figure 5When it comes into contact with the position shown in the attached drawing, at this time, the controller 4 controls the electronic micrometer 23 to remain stationary at this position. Slowly rotate the tailstock 2. Since the electronic micrometer 23 is in close contact with the tailstock 2 at this time, the electronic micrometer 23 always maintains close contact with the tailstock 2. As the tailstock 2 rotates, after slowly rotating one full circle, simultaneously observe the data transmitted back by the electronic micrometer 23 to the controller 4. The difference in the four-point values within the maximum horizontal and vertical ranges measured should be within 0.05 mm. If the values of the two horizontal points exceed the tolerance, slightly rotate the mounting base of the main chuck 3 to adjust it until the values of the two horizontal points are adjusted to the required range. If the values of the two vertical (up and down) points exceed the tolerance, use the method of padding copper sheets at two points on the bottom plane of the chuck mounting to adjust it. The position where the copper sheets are placed is between the tailstock 2 and the mounting table 1 until the values of the two vertical (up and down) points are adjusted to the required range. Repeat this step several times to finally ensure that the error value is within 0.05 mm.

[0030] Reference Figure 3 and Figure 5 , with the center of the tailstock 2 as the reference (the rotation center of the tailstock 2), measure the coaxiality between the rotation center of the main chuck 3 and the rotation center of the tailstock 2, that is, the centers of the two chucks are at the same height. The specific measurement and adjustment method is as follows: Use the controller 4 to control the second drive 14 to closely fit the detection rod 15 with the tailstock 2. When the electronic micrometer 23 embedded inside the detection rod 15 is adjusted to come into contact with the detection trajectory d by starting the second drive 14 using the built-in programming program of the controller 4, slowly rotate the tailstock 2 one full circle. At the same time, observe the data transmitted back by the electronic micrometer 23 to the controller 4. The difference in the four-point values within the maximum horizontal and vertical ranges measured should be within 0.05 mm. If the values of the two horizontal points exceed the tolerance, slightly move the mounting base of the main chuck 3 horizontally to adjust it until the values of the two horizontal points are adjusted to the required range. If the values of the two vertical (up and down) points exceed the tolerance, the method of padding copper sheets at four points on the bottom plane of the chuck mounting can be adopted to adjust it to the required range. The position where the copper sheets are placed is between the tailstock 2 and the mounting table 1. Repeat this step many times to finally ensure that the error value is within 0.05 mm. After the adjustment is completed, please repeat the previous step to check whether the accuracy meets the standard. If there is an over-tolerance, make further adjustments until the final measured value is ensured to be within 0.05 mm.

[0031] Reference Figure 3 and Figure 5 , for the detection and adjustment of the centering accuracy of the chuck, the specific method is as follows: Adjust the distance between the two chucks to be between 500 mm and 1000 mm, and clamp the same test mandrel. The length of the mandrel is between 1500 mm and 2000 mm, and the diameter of the test mandrel is between 30 mm and 50 mm. Push up the mounting seat 5 by the elongation of the output end of the third drive 20, so that the through holes on the first fixing seat 11 and the through holes on the second fixing seat 12 are on the same horizontal plane and coaxial with the center of the test mandrel. Pass the test mandrel through the through holes on the first fixing seat 11 and the second fixing seat 12, and clamp the two ends on the tailstock chuck 2 and the main chuck 3 respectively. When the controller 4 starts the second drive 14 according to the built-in programming program to move the detection rod 15 to the position of the test mandrel and adjust the electronic micrometer 23 to contact the surface 30 mm away from the chuck of the test mandrel, the controller 4 controls the position of the electronic micrometer 23 to remain stationary, rotates the chuck and the test mandrel, and observes the detection values transmitted back by the electronic micrometer 23 to the controller 4; Use the electronic micrometer 23 and the micro camera 22 to detect the chuck and the test mandrel whose chuck centering accuracy has passed the inspection. The qualified value of the centering accuracy measured by the electronic micrometer 23 is A, and the micro camera 22 records the qualified inspection video of the electronic micrometer 23 as the standard video B. Then the controller 4 stores the qualified value A and the standard video B in the internal chip. Then use the electronic micrometer 23 and the micro camera 22 to detect the chuck centering accuracy. The detection situation is as follows: If the detection value of the runout of the test mandrel is equal to the qualified value A, the centering accuracy is qualified; If the jumping detection value of the detection mandrel is greater than the qualified value A, it means that the centering accuracy is not qualified. At this time, the centering accuracy of the chuck has been qualified after the above adjustment, which means that the factor causing the failure of the chuck centering accuracy test may be due to the presence of tiny particles on the surface of the detection mandrel. The electronic micrometer 23 transmits the detection data back to the controller 4, and the micro camera 22 transmits the detection process video of the electronic micrometer 23 back to the controller 4. When the controller 4 receives the detection video returned by the micro camera 22, it compares it with the standard video B built into the controller 4, finds out the position of the tiny particles on the detection mandrel through the comparison, and then pulls the detection mandrel to find out the position of the tiny particles. The position where tiny particles exist is passed through the through hole on the first fixed seat 11. When the detection core rod passes through the through hole, the cleaning cloth 113 on one side of the through hole will wipe the tiny particles on the surface of the detection core rod. The detection core rod is continuously pulled. When the position where tiny particles exist on the surface enters the cleaning hole 112, the controller 4 starts the pump body 8. The pump body 8 pumps gas into the cleaning hole 112 through the air outlet pipe 10. The gas ejected from the cleaning hole 112 is used to blow away the impurities on the surface of the detection core rod. The detection core rod is continuously pulled. The detection core rod cleaned by the cleaning hole 112 is then wiped by the cleaning cloth 113 on the other side to ensure that the tiny particles on the surface of the detection core rod are completely removed. After the surface of the detection core rod is cleaned, the distance between the two chucks is adjusted to between 500mm-1000mm again, and the same detection core rod is clamped. The core rod is between 1500mm-2000mm long and the diameter of the detection core rod is between 30mm-50mm. Insert the cleaned detection core rod into the through holes on the first fixing seat 11 and the second fixing seat 12, and make the two ends of the detection core rod be clamped by the main clamp 3 and the tail clamp 2 respectively, and finally use the electronic micrometer 23 and the micro camera 22 to detect the chuck centering accuracy. In this way, the runout value of the chuck centering accuracy can be adjusted to the specified range.

[0032] Fix the two ends of the detection mandrel between the main card 3 and the tail card 2 respectively, and then use the built-in programming program in the controller 4 to move the electronic micrometer 23 to contact the surface of the detection mandrel, and after 2 seconds, rotate the main card 3 and the tail card 2 at the same time, and observe the data sent back to the controller 4 by the electronic micrometer 23. Use the electronic micrometer 23 and the micro camera 22 to detect the chuck centering accuracy when the mandrel rotates, and then repeat the above detection steps until the jump detection value of the detection mandrel is adjusted to be equal to the qualified value A.

[0033] This detection method can make it easier to detect the centering accuracy of the chuck. At the same time, the cleaning hole 112 and the cleaning cloth 113 provided in the first fixing seat 11 can further improve the cleaning process of the tiny particles on the detection core rod.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0035] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. These modifications or replacements 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. A device for detecting the centering accuracy of a laser pipe-cutting chuck, comprising an installation tabletop (1), with a tailstock (2) and a main chuck (3) respectively arranged on both sides of the installation tabletop (1), characterized in that: A controller (4) is fixedly installed on the installation tabletop (1), and an automatic detection component for detecting the centering accuracy of the chuck is arranged between the tail chuck (2) and the main chuck (3); The automatic detection component consists of a fixing unit and a detection unit; The fixing unit includes a mounting seat (5). A third drive (20) is arranged between the bottom of the mounting seat (5) and the top of the installation tabletop (1). A first fixing seat (11) and a second fixing seat (12) are slidably arranged on the mounting seat (5) through guide rails. The first fixing seat (11) is used for cleaning the surface of the mandrel, and the second fixing seat (12) is used for fixing the detection mandrel; The detection unit includes a mounting frame (6). The mounting frame (6) is fixedly connected to one side of the mounting seat (5). A second mounting block (17) is slidably arranged on the mounting frame (6). A first mounting block (9) is arranged in the second mounting block (17). A second drive (14) is fixedly connected to the bottom of the first mounting block (9). One end of the second drive (14) is fixedly connected to the bottom of the first mounting block (9). The output end of the second drive (14) is fixedly connected to a mounting plate (16). A detection rod (15) is fixedly connected to the bottom of the mounting plate (16). An electronic micrometer (23) and a micro camera (22) are embedded in the bottom of the detection rod (15). The electronic micrometer (23) and the micro camera (22) are both connected to the controller (4).

2. The centering accuracy detection device for a laser pipe cutting chuck according to claim 1, wherein: A fourth drive (21) is fixedly connected to the side wall of the mounting frame (6). The output shaft of the fourth drive (21) is fixedly connected to a first threaded rod (18). The end of the first threaded rod (18) away from the fourth drive (21) is rotatably connected to the mounting frame (6) through a bearing.

3. The centering accuracy detection device for a laser pipe cutting chuck according to claim 2, wherein: The first threaded rod (18) is threadedly connected to the second mounting block (17). A first drive (7) is fixedly connected to the top of the second mounting block (17). The output shaft of the first drive (7) is fixedly connected vertically downward to a second threaded rod (19). The second threaded rod (19) is vertically arranged in the second mounting block (17). The end of the second threaded rod (19) away from the first drive (7) is rotatably connected to the bottom plate of the second mounting block (17) through a bearing. The second threaded rod (19) is threadedly connected to the first mounting block (9).

4. A laser tube cutting chuck centering accuracy detection device according to claim 1, characterized in that: There are two groups of the first fixing seats (11). The two groups of the first fixing seats (11) are symmetrically arranged on both sides of the mounting seat (5). There are two groups of the second fixing seats (12). The two groups of the second fixing seats (12) are symmetrically arranged between the two groups of the first fixing seats (11). The two first fixing seats (11) and the two second fixing seats (12) are fixedly connected by connecting rods. Through holes are formed in the first fixing seats (11), and clamping holes are formed in the second fixing seats (12).

5. The centering accuracy detection device for a laser pipe cutting chuck according to claim 4, characterized in that: A cleaning component is arranged inside the first fixing seat (11). The cleaning component includes a pump body (8), a cavity (111), cleaning holes (112), and a cleaning cloth (113). The cavity (111) is formed inside the first fixing seat (11). The pump body (8) is fixedly connected to the first mounting block (9). The output end of the pump body (8) is fixedly connected to an air outlet pipe (10). One end of the air outlet pipe (10) far from the pump body (8) is connected to the input end of the cavity (111) through a pipe. An air outlet branch pipe (101) is fixedly connected to the first fixing seat (11) near one side of the main card (3). One end of the air outlet branch pipe (101) far from the main card (3) is communicated with the air outlet pipe (10). The cleaning holes (112) are formed in the inner wall of the cavity (111). The cleaning cloth (113) is fixedly connected to both ends of the through hole. The cleaning holes (112) are located between the two cleaning cloths (113).

6. The centering accuracy detection device for a laser pipe cutting chuck according to claim 5, wherein: Guide rods (13) are slidably arranged at the four corners of the mounting seat (5). Guide holes (51) are formed at the four corners of the mounting seat (5). The bottom of the guide rod (13) is fixedly connected to the mounting table surface (1). The guide rod (13) is slidably arranged with the mounting seat (5) through the guide hole (51).

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