Adjusting method for auxiliary machine of oil casing threading machine and inspection device for auxiliary machine of oil casing threading machine

Abstract

The invention provides an oil casing threading machine auxiliary machine adjusting method and an oil casing threading machine auxiliary machine inspection device.The oil casing threading machine auxiliary machine adjusting method comprises the steps that S1, the center of a machine tool chuck serves as an original point O, and a first space coordinate system is established; s2, adjusting the position of the auxiliary machine, and establishing a second space coordinate system by taking the center point of the auxiliary machine as an original point O1; s3, a standard oil casing is installed on the auxiliary machine, and the space position L1 of the central axis of the standard oil casing on the second space coordinate system is obtained; s4, the space position L2 of the central axis of the standard oil casing on the first space coordinate system is obtained, L1 and L2 are compared, and the displacement D needing to be adjusted of the auxiliary machine is obtained; and S5, adjusting the auxiliary machine according to the displacement D. According to the method for adjusting the auxiliary machine of the oil sleeve threading machine, two sets of space coordinate systems are established, the axis of the adjusted oil sleeve is overlapped with the axis of the machine tool spindle, and the subsequent oil sleeve machining quality is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of oil casing processing, and in particular relates to an auxiliary machine adjustment method for an oil casing threading machine and an auxiliary machine inspection device for an oil casing threading machine. Background Art

[0002] The key process of oil casing processing is the thread processing process, which is completed by the cooperation of the main machine and the auxiliary machine. The main machine completes the clamping of the oil casing, spindle rotation, and tool feeding to realize the main function of thread turning; the auxiliary machine completes the functions of material entry and exit, delivery, and support.

[0003] In the prior art, the oil casing conveying channel of the auxiliary machine will wear out after long-term use, resulting in deviation between the axis of the oil casing conveyed by the auxiliary machine and the axis of the main machine; the auxiliary machine cannot automatically correct the deviation. When the axis of the auxiliary machine cannot overlap with the axis of the main machine and a deviation occurs, it cannot be discovered in time by employees. It can only be discovered when quality problems occur in the processed oil casing or by continuous inspections by employees, affecting processing efficiency and processing quality; and the existing correction method is to use a wire pulling method, in which people manually pull the wire to align the axis of the auxiliary machine and the main machine, but the wire pulling is highly dependent on the skills of the employees, and the subjective influence of the employees' visual observation is large. The wire pulling method has a large deviation, and the alignment work is time-consuming and labor-intensive. Summary of the invention

[0004] The embodiment of the present invention provides an auxiliary machine adjustment method and an auxiliary machine inspection device for an oil casing threading machine, aiming to solve the technical problems in the prior art that deviations between the auxiliary machine and the main machine cannot be fed back in time, and the alignment work is highly dependent on the skills of the employees.

[0005] To achieve the above object, the technical solution adopted by the present invention is: In a first aspect, a method for adjusting an auxiliary machine of an oil casing threading machine is provided, comprising: S1. With the center of the machine tool chuck as the origin O, establish the first spatial coordinate system (X, Y, Z), the X axis is parallel to the horizontal center line of the machine tool spindle, the Y axis is perpendicular to the X axis and parallel to the vertical direction, and the Z axis is perpendicular to the X axis and the Z axis respectively; S2. Adjust the position of the auxiliary machine so that the center line of the auxiliary machine is parallel to the X-axis, and establish a second spatial coordinate system (x, y, z) with the center point of the end face of the auxiliary machine away from the machine tool as the origin O1, with the y-axis parallel to the Y-axis and the z-axis parallel to the Z-axis; S3, installing a standard oil casing on an auxiliary machine, coaxially positioning one end of the standard oil casing at the origin O through the auxiliary machine, obtaining a plurality of circle center coordinates of the standard oil casing in the second spatial coordinate system, and determining a spatial position L1 of a central axis of the standard oil casing in the second spatial coordinate system according to the plurality of circle center coordinates; S4, putting multiple center coordinates of the standard oil casing in the second spatial coordinate system into the first spatial coordinate system, obtaining the spatial position L2 of the central axis of the standard oil casing in the first spatial coordinate system, comparing L1 and L2, and obtaining the displacement D that needs to be adjusted in the y-axis and z-axis of the auxiliary machine in the second spatial coordinate system; S5. Adjust the auxiliary machine according to the displacement D so that the axis of the standard oil casing and the X-axis overlap.

[0006] In combination with the first aspect, in a possible implementation manner, S3 specifically includes: Place one end of the standard oil casing in contact with the origin O; Select three points X1, X2 and X3 along the long axis of the standard oil casing at intervals, and determine the coordinates of the three points in the second space coordinate system; Connect the three dots into a straight line to obtain the spatial position L1 of the central axis of the standard oil casing in the second spatial coordinate system.

[0007] In combination with the first aspect, in a possible implementation, before S3, the following is also included: Inspect the quality of the oil casing to be tested, obtain multiple center coordinates of the oil casing to be tested in the first space coordinate system, connect the multiple center coordinates to obtain the center axis, and determine whether the straightness of the center axis is less than 3 mm / L; If the straightness of the center axis is less than 3mm / L, it is judged that the oil casing to be tested meets the requirements of standard oil casing; If the straightness of the center axis is equal to or greater than 3mm / L, the oil casing to be tested is judged to be not in compliance with the standard oil casing, and the oil casing to be tested is removed and discarded, and replaced with a new one.

[0008] In combination with the first aspect, in a possible implementation manner, before S3, the step further includes: Obtain the straightness of the oil casing sample and compare it with the preset range of 0.8mm / 1.5m; If the maximum deviation of the 1.5m end of the tubing sample is less than 0.8mm, it means that the tubing sample meets the business opportunity requirements, and the tubing sample becomes the tubing to be tested; If the maximum deviation of the tubing sample at 1.5m is equal to or greater than 0.8mm, it means that the quality of the tubing sample is unqualified and the auxiliary machine needs to be removed.

[0009] Compared with the prior art, the auxiliary machine adjustment method of the oil casing threading machine provided by the present application establishes two sets of spatial coordinate systems, takes the first spatial coordinate system established on the machine tool as the standard coordinate system, first determines the spatial position of the standard oil casing in the second spatial coordinate system established based on the auxiliary machine, and then obtains the displacement amount that the auxiliary machine should adjust according to the corresponding position of this spatial position in the first spatial coordinate system. After adjustment, the axis of the oil casing overlaps with the axis of the machine tool spindle, thereby ensuring the subsequent oil casing processing quality; the spatial coordinate system has high accuracy, and the data obtained in the first spatial coordinate system and the second spatial coordinate system have high reliability. When the auxiliary machine transports each oil casing, it is detected and adjusted once, thereby ensuring the accuracy of the auxiliary machine in transporting multiple oil casings, thereby increasing the transportation reliability.

[0010] In combination with the second aspect, a device for inspecting auxiliary equipment of a tubular casing threading machine is provided, which is implemented based on the method for adjusting auxiliary equipment of the tubular casing threading machine according to any one of the above possible implementations, and includes: Three sets of distance measuring components are arranged at intervals along the main axis of the machine tool, and the distance measuring components are used to determine the central axis of the standard oil casing; and The processor is respectively connected to the three distance measuring components and the auxiliary machine for communication.

[0011] In combination with the second aspect, in a possible implementation, the distance measuring assembly includes a camera and two laser rangefinders, the camera is arranged on one side of the standard oil casing, one of the two laser rangefinders is arranged on the side of the standard oil casing away from the camera, and the other is arranged directly below the standard oil casing, and the lasers emitted by the two laser rangefinders are perpendicular to each other.

[0012] In combination with the second aspect, in a possible implementation manner, the arc angle of the oil casing photographed by the camera is not less than 120°.

[0013] In combination with the second aspect, in a possible implementation, the oil casing threading machine auxiliary machine inspection device also includes an alarm component, the alarm component includes a warning light, the warning light is communicatively connected to the processor, and the warning light is used to prompt that the straightness of the oil casing to be tested does not meet the processing requirements.

[0014] In combination with the second aspect, in a possible implementation manner, the three cameras are started step by step.

[0015] In combination with the second aspect, in a possible implementation manner, the three cameras are arranged at the same height, and the horizontal distance between each camera and the standard oil casing is the same.

[0016] Compared with the prior art, the auxiliary machine inspection device for the oil casing threading machine provided by the present invention establishes two sets of spatial coordinate systems, takes the first spatial coordinate system established on the machine tool as the standard coordinate system, first determines the spatial position of the standard oil casing in the second spatial coordinate system established based on the auxiliary machine, and then obtains the displacement that the auxiliary machine should adjust according to the corresponding position of this spatial position in the first spatial coordinate system. After adjustment, the axis of the oil casing overlaps with the axis of the machine tool spindle, ensuring the subsequent oil casing processing quality; the spatial coordinate system has high accuracy, and the data obtained in the first spatial coordinate system and the second spatial coordinate system have high reliability. The auxiliary machine detects and adjusts each oil casing when transporting it, ensuring the accuracy of the auxiliary machine transporting multiple oil casings and increasing the transportation reliability. The detection component can timely obtain the central axis coordinates and spatial position of the standard oil casing, so that the auxiliary machine can adjust the position of each standard oil casing, so that the axis of each standard oil casing overlaps with the axis of the machine tool spindle, improving the processing quality. The three distance measuring components can measure the central axis position of the oil casing and select standard oil casing and discarded oil casing according to the straightness of the central axis, eliminating the situation of unqualified product processing quality caused by the straightness problem of the oil casing itself and reducing the defective rate. When the distance measuring component is measuring, the data is transmitted to the processor, which is convenient for the processor to judge whether there is any equipment abnormality based on the data, which is conducive to timely discovery and handling of problems and reduces losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic diagram of the structure of an auxiliary machine inspection device for a casing threading machine provided by an embodiment of the present invention; Figure 2 A schematic diagram of the coordination between the distance measuring assembly and the standard oil casing used in the embodiment of the present invention; Figure 3 for Figure 2 Top view of the .

[0019] Description of reference numerals: 1. Distance measuring component; 11. Camera; 12. Laser rangefinder; 2. Machine tools; 3. Auxiliary machine; 4. Standard oil casing. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] It should be noted that the directions or positional relationships indicated by terms such as “length”, “width”, “height”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “head” and “tail” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the invention.

[0022] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0024] Please also read Figures 1 to 3 The auxiliary machine adjustment method of the oil casing threading machine provided by the present invention is now described. A method for adjusting the auxiliary machine of the oil casing threading machine comprises the following steps: S1. With the center of the chuck of machine tool 2 as the origin O, establish the first spatial coordinate system (X, Y, Z). The X axis is parallel to the horizontal center line of the main axis of machine tool 2, the Y axis is perpendicular to the X axis and parallel to the vertical direction, and the Z axis is perpendicular to the X axis and the Z axis respectively; S2. Adjust the position of auxiliary machine 3 so that the center line of auxiliary machine 3 is parallel to the X axis, and establish the second spatial coordinate system (x, y, z) with the center point of the end face of auxiliary machine 3 away from machine tool 2 as the origin O1, with the y axis parallel to the Y axis, and the z axis parallel to the Z axis; S3. Install the standard oil casing 4 on the auxiliary machine 3, and use the auxiliary machine 3 to coaxially position one end of the standard oil casing at the origin O to obtain the standard S4, put the multiple center coordinates of the standard oil casing 4 in the second space coordinate system into the first space coordinate system, get the spatial position L2 of the center axis of the standard oil casing 4 in the first space coordinate system, compare L1 and L2, get the displacement D of the auxiliary machine 3 in the second space coordinate system that needs to be adjusted in the y-axis and z-axis; S5, adjust the auxiliary machine 3 according to the displacement D, so that the axis of the standard oil casing 4 overlaps with the X-axis.

[0025] It should be noted that the central axis position of the standard oil casing 4 is determined by a three-point-one-line method, and the three center coordinates (x1, y1, z1), (x2, y2, z2), and (x3, y3, z3) of the standard oil casing 4 in the second spatial coordinate system are obtained. The three center points are connected to obtain the spatial position L1.

[0026] It should be noted that Figure 1 The solid line coordinate system in is the first space coordinate system (X, Y, Z), and the dotted line coordinate system is the second space coordinate system (x, y, z).

[0027] It should be noted that position comparison refers to comparing the positions of coordinate points on the standard oil casing 4. For example, the coordinates of the center point of the central axis of the standard oil casing 4 are (x1, y1, z1) in the second spatial coordinate system and (X1, Y1, Z1) in the first spatial coordinate system. After comparison, the distance that the center point of the central axis of the standard oil casing 4 moves in the X-axis direction is the distance between X1 and x1, the distance that the center point of the central axis moves in the Y-axis direction is the distance between Y1 and y1, and the distance that the center point of the central axis moves in the Z-axis direction is the distance between Z1 and z1. These three distances are the displacement D.

[0028] Compared with the prior art, the auxiliary machine adjustment method of the oil casing threading machine provided in this embodiment establishes two sets of spatial coordinate systems, and takes the first spatial coordinate system established on the machine tool 2 as the standard coordinate system. The spatial position of the standard oil casing in the second spatial coordinate system established based on the auxiliary machine 3 is first determined, and the displacement amount that the auxiliary machine 3 should adjust is obtained according to the position corresponding to this spatial position in the first spatial coordinate system. After adjustment, the axis of the oil casing overlaps with the axis of the main shaft of the machine tool 2, thereby ensuring the subsequent oil casing processing quality; the spatial coordinate system has high accuracy, and the data obtained in the first spatial coordinate system and the second spatial coordinate system have high reliability. The auxiliary machine 3 detects and adjusts each oil casing when transporting it, thereby ensuring the accuracy of the auxiliary machine 3 in transporting multiple oil casings, thereby increasing the transportation reliability.

[0029] In some embodiments, S3 specifically includes: connecting one end of the standard oil casing with the origin O; selecting three points X1, X2 and X3 at intervals along the long axis of the standard oil casing 4, and determining the coordinates of the three points in the second space coordinate system (x1, y1, z1), (x2, y2, z2), (x3, y3, z3); ​​connecting the three points into a straight line to obtain the spatial position L1 of the central axis of the standard oil casing 4 in the second space coordinate system. This embodiment adopts the three-point-one-line method to determine the position of the central axis. Three points located in the same plane can determine a straight line, and the straightness of the straight line can be guaranteed, thereby improving the accuracy of the obtained central axis coordinates of the standard oil casing 4, and ensuring that the adjusted central axis of the auxiliary machine 3 can overlap with the main axis of the machine tool 2.

[0030] Preferably, the coordinates of the center point of the standard oil casing 4 and the center points of the two end faces are taken to connect them.

[0031] In some embodiments, referring to the figure, before S3, it also includes: inspecting the quality of the oil casing to be tested, obtaining multiple center coordinates of the oil casing to be tested in the first space coordinate system, connecting the multiple center coordinates to obtain the center axis, and judging whether the straightness of the center axis is less than 3mm / L; if the straightness of the center axis is less than 3mm / L, judging that the oil casing to be tested meets the requirements of the standard oil casing; if the straightness of the center axis is equal to or greater than 3mm / L, judging that the oil casing to be tested does not meet the requirements of the standard oil casing, removing the oil casing to be tested and discarding it, and replacing it with a new oil casing to be tested.

[0032] This embodiment provides an implementation method for checking whether the oil casing to be tested is a standard oil casing 4. The steel pipe to be processed is placed on the auxiliary machine 3 to become the steel pipe to be tested. The three center coordinates of the steel pipe to be tested are obtained in the second space coordinate system. The three center coordinates are connected to obtain two line segments. The overall straightness is obtained by comparing the two line segments. By comparing the straightness, it is judged whether the oil casing to be tested meets the processing requirements, which improves the convenience of detecting the oil casing to be tested, can eliminate the factors of low processing quality caused by problems of the oil casing itself, and screen out unqualified steel pipes to be tested before processing, thereby reducing the defective rate and saving processing costs.

[0033] In some embodiments, before S3 it also includes: obtaining the straightness of the oil casing sample and comparing it with a preset range of 0.8mm / 1.5m; if the maximum deviation of the oil casing sample tube end 1.5m is less than 0.8mm, it means that the oil casing sample meets the processing quality requirements, and the oil casing sample becomes the oil casing to be tested; if the maximum deviation of the oil casing sample tube end 1.5m is equal to or greater than 0.8mm, it means that the quality of the oil casing sample tube is unqualified and needs to be removed from the auxiliary machine 3.

[0034] It should be noted that the oil casing placed on the auxiliary machine 3 is defined as the oil casing sample, the oil casing sample for obtaining straightness is defined as the oil casing to be tested, and the oil casing to be tested that meets the processing requirements is defined as the standard oil casing 4.

[0035] It should be noted that 0.8mm / 1.5m means that the maximum allowable deviation of the pipe end for 1.5m is 0.8mm.

[0036] It should be noted that in this embodiment, only the centers of the two ends of the oil casing sample are obtained, and by comparing the straight line connecting the two points with the axis of the auxiliary machine 3, it can be determined whether the oil casing sample meets the processing requirements.

[0037] In this embodiment, the straightness test is performed on the oil casing samples, and the oil casing is preliminarily screened. The oil casing with a straightness deviation greater than 0.8mm / 1.5m is directly screened out, eliminating the step of using three points and one line to obtain the center axis to determine the straightness of the center axis, thereby improving the overall processing efficiency and avoiding unnecessary testing work.

[0038] Based on the same inventive concept, the present application also provides an auxiliary machine inspection device for a tubular casing threading machine, which is implemented based on the auxiliary machine adjustment method of the tubular casing threading machine in any of the above embodiments, and includes three sets of distance measuring components 1 and a processor. The three sets of distance measuring components 1 are arranged at intervals along the main axis of the machine tool 2, and the distance measuring components 1 are used to determine the central axis of the standard tubular casing 4; the processor is respectively connected to the three distance measuring components 1 and the auxiliary machine 3 for communication.

[0039] It should be noted that Figure 1The solid line coordinate system in is the first space coordinate system, and the dotted line coordinate system is the second space coordinate system.

[0040] It should be noted that the distance measuring component 1 can obtain the center coordinates of the standard oil casing 4. The processor obtains the spatial position L1 of the central axis of the standard oil casing 4 in the second space coordinate system through the three center coordinates, and calculates the displacement D that the auxiliary machine 3 needs to move based on analysis and comparison.

[0041] It should be noted that the entire process acquires data through the distance measurement component 1 and analyzes the data through the processor, with a low level of human involvement, thus reducing the workload of employees.

[0042] It should be noted that the auxiliary machine 3 includes a central support roller, a translation device, a conveying roller and a clamping roller, which are arranged sequentially along the direction approaching the machine tool 2 to transport the standard oil casing 4, and the standard oil casing 4 moves on the top of the auxiliary machine 3.

[0043] Compared with the prior art, the auxiliary machine inspection device for the oil casing threading machine provided in this embodiment establishes two sets of spatial coordinate systems. The first spatial coordinate system established on the machine tool 2 is used as the standard coordinate system. The spatial position of the standard oil casing in the second spatial coordinate system established based on the auxiliary machine 3 is first determined. The displacement that the auxiliary machine 3 should adjust is obtained according to the position corresponding to this spatial position in the first spatial coordinate system. After adjustment, the axis of the oil casing overlaps with the axis of the main shaft of the machine tool 2, ensuring the subsequent oil casing processing quality; the spatial coordinate system has high accuracy, and the data obtained in the first spatial coordinate system and the second spatial coordinate system have high reliability. The auxiliary machine 3 detects and adjusts each oil casing when transporting it, ensuring the accuracy of the auxiliary machine 3 transporting multiple oil casings and increasing the transportation reliability. The detection component can obtain the central axis coordinates and spatial position of the standard oil casing in a timely manner, so that the auxiliary machine 3 can adjust the position of each standard oil casing, so that the axis of each standard oil casing overlaps with the axis of the main shaft of the machine tool 2, improving the processing quality. The three distance measuring components 1 can measure the central axis position of the oil casing and select standard oil casing and discarded oil casing according to the straightness of the central axis, eliminating the situation of unqualified product processing quality caused by the straightness problem of the oil casing itself, and reducing the defective rate. When the distance measuring component 1 measures, the data is transmitted to the processor, which is convenient for the processor to judge whether the equipment is abnormal based on the data, which is conducive to timely discovery and handling of problems and reduces losses.

[0044] In some embodiments, referring to the figure, the distance measuring component 1 includes a camera 11 and two laser distance meters 12. The camera 11 is arranged on one side of the standard oil casing 4. One of the two laser distance meters 12 is arranged on the side of the standard oil casing 4 away from the camera 11, and the other is arranged directly below the standard oil casing 4. The lasers emitted by the two laser distance meters 12 are perpendicular to each other. The camera 11 can determine the center of the standard oil casing 4 by shooting the arc surface of the standard oil casing 4. The three cameras 11 are arranged at intervals, and can obtain the three center positions of the standard oil casing 4, and then obtain the three center coordinates on the standard oil casing 4. The two laser distance meters 12 measure the distance from the vertical direction and the horizontal direction respectively, and obtain the y-axis left and z-axis coordinates of the standard oil casing 4. The camera 11 obtains the x-axis coordinate. Through a set of distance measuring components 1, a set of center coordinates on the standard oil casing 4 can be obtained, and then the spatial position of the central axis of the standard oil casing 4 can be obtained.

[0045] During specific implementation, the camera 11 is a camera capable of continuous snapshots.

[0046] In some embodiments, see Figures 1 to 3 The camera 11 takes a picture of the arc surface of the oil casing at an angle of not less than 120°. The camera 11 determines the center of the arc surface through the arc surface imaging obtained, and the accuracy of the center obtained by using 120° or more is high.

[0047] In some embodiments, the auxiliary machine inspection device for the oil casing threading machine further includes an alarm component, the alarm component includes a warning light, the warning light is communicatively connected to the processor, and the warning light is used to indicate that the straightness of the oil casing to be tested does not meet the processing requirements. After the warning light is communicatively connected to the processor, when the processor detects that the straightness of the steel pipe to be tested does not meet the requirements, a signal is transmitted to the warning light, and the warning light flashes, reminding the employee to remove the unqualified oil casing.

[0048] In some embodiments, the three cameras 11 are started gradually. The three cameras 11 are turned on one by one along the long axis of the standard oil casing 4 to determine the position of the central axis of the standard oil casing 4. After the cameras 11 are started, multiple standard oil casing 4 can be monitored in real time in sequence, and the position of each standard oil casing 4 can be adjusted to ensure that the axis of each standard oil casing 4 during processing overlaps with the main axis of the machine tool 2.

[0049] In some embodiments, see Figure 2 The three cameras 11 are set at the same height, and the horizontal distance between each camera 11 and the standard oil casing is the same. After the three cameras 11 are set at the same height, the deviation of the center coordinate caused by installation factors is reduced, and the reliability of the data is improved.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for adjusting an auxiliary machine of an oil casing threading machine, characterized in that: The following steps are involved: S1. With the center of the machine tool chuck as the origin O, establish the first spatial coordinate system (X, Y, Z), the X axis is parallel to the horizontal center line of the machine tool spindle, the Y axis is perpendicular to the X axis and parallel to the vertical direction, and the Z axis is perpendicular to the X axis and the Z axis respectively; S2. Adjust the position of the auxiliary machine so that the center line of the auxiliary machine is parallel to the X-axis, and establish a second spatial coordinate system (x, y, z) with the center point of the end face of the auxiliary machine away from the machine tool as the origin O1, with the y-axis parallel to the Y-axis and the z-axis parallel to the Z-axis; S3, installing a standard oil casing on an auxiliary machine, coaxially positioning one end of the standard oil casing at the origin O through the auxiliary machine, obtaining a plurality of circle center coordinates of the standard oil casing in the second spatial coordinate system, and determining a spatial position L1 of a central axis of the standard oil casing in the second spatial coordinate system according to the plurality of circle center coordinates; S4, putting multiple center coordinates of the standard oil casing in the second spatial coordinate system into the first spatial coordinate system, obtaining the spatial position L2 of the central axis of the standard oil casing in the first spatial coordinate system, comparing L1 and L2, and obtaining the displacement D that needs to be adjusted in the y-axis and z-axis of the auxiliary machine in the second spatial coordinate system; S5. Adjust the auxiliary machine according to the displacement D so that the axis of the standard oil casing and the X-axis overlap.

2. The auxiliary machine adjustment method of the oil casing threading machine according to claim 1, characterized in that: The S3 specifically includes: Place one end of the standard oil casing in contact with the origin O; Select three points X1, X2 and X3 along the long axis of the standard oil casing at intervals, and determine the coordinates of the three points in the second space coordinate system; Connect the three dots into a straight line to obtain the spatial position L1 of the central axis of the standard oil casing in the second spatial coordinate system.

3. The auxiliary machine adjustment method of the oil casing threading machine according to claim 1, characterized in that: S3 also previously included: Inspect the quality of the oil casing to be tested, obtain multiple center coordinates of the oil casing to be tested in the first space coordinate system, connect the multiple center coordinates to obtain the center axis, and determine whether the straightness of the center axis is less than 3 mm / L; If the straightness of the center axis is less than 3mm / L, it is judged that the oil casing to be tested meets the requirements of standard oil casing; If the straightness of the center axis is equal to or greater than 3mm / L, the oil casing to be tested is judged to be not in compliance with the standard oil casing, and the oil casing to be tested is removed and discarded, and replaced with a new one.

4. The auxiliary machine adjustment method of the oil casing threading machine according to claim 3, characterized in that: The S3 also includes: Obtain the straightness of the oil casing sample and compare it with the preset range of 0.8mm / 1.5m; If the maximum deviation of the 1.5m end of the tubing sample is less than 0.8mm, it means that the tubing sample meets the business opportunity requirements, and the tubing sample becomes the tubing to be tested; If the maximum deviation of the tubing sample at 1.5m is equal to or greater than 0.8mm, it means that the quality of the tubing sample is unqualified and the auxiliary machine needs to be removed.

5. An auxiliary machine inspection device for oil casing threading machine, implemented based on the auxiliary machine adjustment method for oil casing threading machine according to any one of claims 1 to 4, characterized in that: include: Three sets of distance measuring components are arranged at intervals along the main axis of the machine tool, and the distance measuring components are used to determine the central axis of the standard oil casing; as well as The processor is respectively connected to the three distance measuring components and the auxiliary machine for communication.

6. The auxiliary machine inspection device for oil casing threading machine according to claim 5, characterized in that: The distance measuring assembly includes a camera and two laser distance meters. The camera is arranged on one side of the standard oil casing, one of the two laser distance meters is arranged on the side of the standard oil casing away from the camera, and the other is arranged directly below the standard oil casing. The lasers emitted by the two laser distance meters are perpendicular to each other.

7. The auxiliary machine inspection device for oil casing threading machine according to claim 6, characterized in that: The camera's arc angle for photographing the oil casing is not less than 120°.

8. The auxiliary machine inspection device for oil casing threading machine according to claim 5, characterized in that: The auxiliary machine inspection device for the oil casing threading machine also includes an alarm component, which includes a warning light. The warning light is communicatively connected to the processor, and the warning light is used to prompt that the straightness of the oil casing to be tested does not meet the processing requirements.

9. The auxiliary machine inspection device for oil casing threading machine according to claim 6, characterized in that: The three cameras are started step by step.

10. The auxiliary machine inspection device for oil casing threading machine according to claim 6, characterized in that: The three cameras are arranged at the same height, and each camera has the same horizontal distance from the standard oil casing.

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