CN109506585B

CN109506585B - Oil casing pipe size device based on indirect measurement

Info

Publication number: CN109506585B
Application number: CN201811229608.6A
Authority: CN
Inventors: 梁栋; 顾杰宁; 杨龙兴; 张卫平; 张陈
Original assignee: Jiangsu University of Technology
Current assignee: Jiangsu University of Technology
Priority date: 2018-10-22
Filing date: 2018-10-22
Publication date: 2021-03-12
Anticipated expiration: 2038-10-22
Also published as: CN109506585A

Abstract

The invention discloses an oil casing size device based on indirect measurement, which comprises a base, wherein two fixed seats are installed at the top of the base, two linear guide rails are fixedly connected between the two fixed seats, the same workbench is installed on the two linear guide rails in a sliding mode, handles are installed at two ends of the workbench along the sliding direction of the linear guide rails, an air cylinder is installed at the top of the workbench, a clamping jaw is installed at the tail end of a piston rod of the air cylinder, a first upright post, a second upright post and a third upright post are fixed at the top of the base, a backlight source and a laser detection head are installed on the first upright post, the laser detection head is located above the backlight source, a coaxial light source and a first camera are installed on the second upright post, and the first camera is located above the coaxial light source. The invention carries out measurement in an indirect mode, has convenient operation and simple structure, and improves the precision and the efficiency of detection.

Description

Oil casing pipe size device based on indirect measurement

Technical Field

The invention relates to the technical field of petroleum casing detection, in particular to a petroleum casing size device based on indirect measurement.

Background

With the development of oil and gas, the number of high gas-containing oil wells is increased, and hydrostatic pressure tests, namely gas seal tests, must be carried out on the high gas-containing oil wells. The air sealing test adopts the bubble principle, places the air path provided with the sleeve in water, and observes the size and the quantity of bubbles in the water to judge whether the sleeve can meet the use requirement, thereby providing high requirements for the size precision of the sleeve. Because of the special structure of the casing, the part diagrams are shown in the attached figures 6 and 7 of the specification, the detection is not only inefficient but also the dimensional accuracy of the detection is unstable by adopting direct measurement, and therefore an oil casing dimension device based on indirect measurement is provided.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides an oil casing size device based on indirect measurement.

In order to achieve the purpose, the invention adopts the following technical scheme:

an oil casing size device based on indirect measurement comprises a base, wherein two fixed seats are installed at the top of the base, two linear guide rails are fixedly connected between the two fixed seats, the two linear guide rails are provided with a same workbench in a sliding manner, handles are installed at two ends of the workbench along the sliding direction of the linear guide rails, an air cylinder is installed at the top of the workbench, a clamping jaw is installed at the tail end of a piston rod of the air cylinder, a first upright post, a second upright post and a third upright post are fixed at the top of the base, a backlight source and a laser detection head are installed on the first upright post, the laser detection head is positioned above the backlight source, a coaxial light source and a first camera are installed on the second upright post, the first camera is positioned above the coaxial light source, a first lens is installed at the bottom of the first camera, and a second camera is installed on the third upright post, the second camera lens is installed to the side of second camera, laser detection area photoelectric sensor, image detection area sensor are installed at the top of base, fixed length measurement standard component is installed to the side of workstation.

Preferably, the clamping jaw is clamped with a part.

Preferably, the first upright column, the second upright column and the third upright column are parallel to each other, the first upright column and the second upright column are positioned on the same side of the workbench, and the third upright column is positioned on the different side of the workbench from the first upright column and the second upright column.

Compared with the prior art, the invention has the beneficial effects that:

the method comprises the following steps of detecting in two steps, wherein in the first step, the depth size of a part is mainly detected when the part is positioned in a laser detection area, and in the second step, the inner diameter and the outer diameter of the part and the depth size of a groove are mainly detected when the part is positioned in an image detection area; the device carries out measurement in an indirect mode, is convenient to operate and simple in structure, and improves the detection precision and efficiency.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a front shaft measuring schematic diagram of a petroleum casing pipe dimension device based on indirect measurement, wherein parts of the petroleum casing pipe dimension device are located in a laser detection area;

FIG. 2 is a rear axle measuring diagram of a petroleum casing pipe dimension device based on indirect measurement, wherein parts of the petroleum casing pipe dimension device are located in a laser detection area;

FIG. 3 is a front axle measuring diagram of a petroleum casing dimension device based on indirect measurement, wherein parts are located in an image detection area;

FIG. 4 is a first laser detection schematic diagram of an oil casing dimension device based on indirect measurement according to the present invention;

FIG. 5 is a second laser detection schematic diagram of an oil casing dimension device based on indirect measurement according to the present invention;

FIG. 6 is a front view of a part to be inspected in the present invention;

fig. 7 is a sectional view of a part to be inspected in the present invention.

In the figure: 1 workstation, 2 handles, 3 cylinders, 4 clamping jaws, 5 light source in a poor light, 6 parts, 7 laser detection head, 8 coaxial light sources, 9 first camera, 10 first camera, 11 fixed length measurement standard component, 12 laser detection district photoelectric sensor, 13 image detection district sensor, 14 bases, 15 fixing base, 16 first stand, 17 second stand, 18 third stand, 19 linear guide, 20 second camera lens, 21 second camera.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Referring to fig. 1-7, an oil casing size device based on indirect measurement comprises a base 14, two fixed seats 15 are installed at the top of the base 14, two linear guide rails 19 are fixedly connected between the two fixed seats 15, the same workbench 1 is installed on the two linear guide rails 19 in a sliding manner, handles 2 are installed at two ends of the workbench 1 along the sliding direction of the linear guide rails 19, an air cylinder 3 is installed at the top of the workbench 1, a clamping jaw 4 is installed at the tail end of a piston rod of the air cylinder 3, a first upright column 16, a second upright column 17 and a third upright column 18 are fixed at the top of the base 14, a backlight source 5 and a laser detection head 7 are installed on the first upright column 16, the laser detection head 7 is located above the backlight source 5, a coaxial light source 8 and a first camera 21 are installed on the second upright column 17, the first camera 21 is located above the coaxial light source 8, and a first lens 20 is installed at the bottom, a second camera 10 is installed on the third upright column 18, a second lens 9 is installed on the side edge of the second camera 10, a laser detection area photoelectric sensor 12 and an image detection area sensor 13 are installed at the top of the base 14, and a fixed-length measurement standard component 11 is installed on the side edge of the workbench 1.

Wherein the part 6 is clamped on the clamping jaw 4.

The first upright column 16, the second upright column 17 and the third upright column 18 are parallel to each other, the first upright column 16 and the second upright column 17 are located on the same side of the workbench 1, and the third upright column 18 is located on the different side of the workbench 1 from the first upright column 16 and the second upright column 17.

The working principle is as follows:

the invention can carry out detection in two steps, wherein in the first step, when the part 6 is positioned in a laser detection area, the depth size of the part 6 is mainly detected: the detected part 6 is placed on the workbench 1, the air cylinder 3 pushes the clamping jaw 4 to clamp the part 6, the handle 2 can be pushed to move the workbench 1 at the moment, the workbench 1 moves along the linear guide rail 19, when the fixed length measurement standard component 11 enters a laser detection area, a laser detection area photoelectric sensor 12 is used for triggering a laser detection head 7 to perform measurement, as shown in the attached drawing 3 of the specification, wherein AB is A1B1, BC is B1C1, and CD is C1D1, the point of laser measurement is ensured to just fall on A1, B1, C1 and D1 points, and the depth of the part 6 can be detected; and secondly, when the part 6 is positioned in an image detection area, the inner diameter, the outer diameter and the groove depth of the part 6 are mainly detected: the detected part 6 is continuously pushed until reaching an image detection area, at the moment, the image detection area sensor 13 triggers the first camera 10 and the second camera 21 to collect and process images, the installation angle of the first camera 10 and the second camera 21 is ninety degrees, and the size of the part 6 can be detected from the right top and the side face at the same time; simple structure, convenient operation has improved the precision and the efficiency that detect.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an oil casing size device based on indirect measurement, includes base (14), its characterized in that, two fixing bases (15) are installed at the top of base (14), two linear guide (19) of fixedly connected with between fixing base (15), two slidable mounting has same workstation (1) on linear guide (19), handle (2) are all installed at the both ends along linear guide's (19) slip direction on workstation (1), cylinder (3) are installed at the top of workstation (1), clamping jaw (4) are installed to the end of the piston rod of cylinder (3), the top of base (14) is fixed with first stand (16), second stand (17), third stand (18), install backlight source (5) and laser detection head (7) on first stand (16), laser detection head (7) are located the top of backlight source (5), a coaxial light source (8) and a first camera (21) are mounted on the second upright column (17), the first camera (21) is located above the coaxial light source (8), a first lens (20) is mounted at the bottom of the first camera (21), a second camera (10) is mounted on the third upright column (18), a second lens (9) is mounted on the side edge of the second camera (10), a laser detection area photoelectric sensor (12) and an image detection area sensor (13) are mounted at the top of the base (14), and a fixed-length measurement standard component (11) is mounted on the side edge of the workbench (1);

the fixed-length measurement standard component is provided with a plurality of gaps, when the fixed-length measurement standard component enters a laser detection area, the gaps are matched with a laser detection area photoelectric sensor to trigger a laser detection head to measure, and the fact that a laser collection data point accurately falls on a concave-convex step surface of a corresponding position of the end face of the petroleum casing pipe is ensured.

2. Oil casing sizing device based on indirect measurement according to claim 1, characterized in that the clamping jaw (4) holds a part (6).

3. The oil casing dimension device based on indirect measurement is characterized in that the first upright column (16), the second upright column (17) and the third upright column (18) are parallel to each other, the first upright column (16) and the second upright column (17) are positioned on the same side of the workbench (1), and the third upright column (18) is positioned on the different side of the workbench (1) from the first upright column (16) and the second upright column (17).