CN113819869B - Wall thickness measuring method and wall thickness measuring device - Google Patents
Wall thickness measuring method and wall thickness measuring device Download PDFInfo
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- CN113819869B CN113819869B CN202111080010.7A CN202111080010A CN113819869B CN 113819869 B CN113819869 B CN 113819869B CN 202111080010 A CN202111080010 A CN 202111080010A CN 113819869 B CN113819869 B CN 113819869B
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000523 sample Substances 0.000 claims abstract description 52
- 238000005070 sampling Methods 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 238000000691 measurement method Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 description 9
- 238000011010 flushing procedure Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012952 Resampling Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
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Abstract
The application discloses a wall thickness measuring method and a wall thickness measuring device, which belong to the technical field of thickness measurement, and the wall thickness measuring method comprises the following steps: installing a positioning tool at a first position of the elbow; sampling at least part of the positioning holes on the positioning tool, and enabling a display screen of the host to display a first record carrier according to sampling results, wherein the first record carrier comprises a plurality of first data recording positions, and the sampled at least part of the positioning holes correspond to the first data recording positions one by one; the probe sequentially stretches into each sampled positioning hole, wall thickness values of corresponding positions of each positioning hole are measured, measured wall thickness values are recorded at each first data recording position, and a first data recording library is formed; disassembling the positioning tool, and reinstalling the positioning tool at a first position after the interval time t; the host computer displays a second record carrier, the probe re-measures the wall thickness value of the position corresponding to each sampled positioning hole, and the wall thickness value is recorded in the corresponding second data recording position to form a second data record base.
Description
Technical Field
The application belongs to the technical field of thickness measurement, and particularly relates to a wall thickness measuring method and a wall thickness measuring device.
Background
With respect to wall thickness detection of high pressure movable bends, it is common for a probe to fall at a target location on the outer surface of the movable bend to measure the wall thickness at the target location.
At present, in order to solve the wall thickness change rule, the wall thickness value of the same measuring point in different time phases needs to be detected, however, in actual operation, after a period of time, the probe is difficult to accurately fall on the same target position, the wall thickness of the same measuring point cannot be accurately measured, front-back comparison data cannot be formed, and the wall thickness data of the movable elbow in different time phases cannot be effectively analyzed.
Disclosure of Invention
The embodiment of the application aims to provide a wall thickness measuring method and a wall thickness measuring device, which can solve the problems that wall thickness data of the same measuring point at different stages cannot be accurately measured and front and rear wall thickness data cannot be compared in the related technology.
In a first aspect, an embodiment of the present application provides a wall thickness measurement method, including:
s1, installing a positioning tool at a first position of an elbow;
s2, sampling at least part of all positioning holes on the positioning tool, and enabling a display screen of a host to display a first record carrier according to sampling results, wherein the first record carrier comprises a plurality of first data recording positions, and at least part of the sampled positioning holes correspond to the first data recording positions one by one;
s3, sequentially extending the probe into each sampled positioning hole, measuring the wall thickness value of the elbow position corresponding to each positioning hole, and respectively recording the wall thickness value measured by the probe at the corresponding positioning hole at each first data recording position to form a first data recording library;
s4, disassembling the positioning tool, and reinstalling the positioning tool at the first position of the elbow after the interval time t;
s5, enabling a display screen of the host to display a second record carrier, wherein the second record carrier comprises a plurality of second data recording positions, and at least part of sampled positioning holes correspond to the second data recording positions one by one;
and S6, the probe stretches into each sampled positioning hole in turn, the wall thickness value of the elbow position corresponding to each positioning hole is measured, and the wall thickness value measured by the probe at the corresponding positioning hole is recorded at each second data recording position to form a second data recording library.
In a second aspect, embodiments of the present application further provide a wall thickness measuring device applied to an elbow provided with an axial positioning reference and a circumferential positioning reference, the wall thickness measuring device comprising:
the positioning tool is detachably arranged on the outer surface of the elbow, is provided with an axial positioning structure and a circumferential positioning structure, is aligned with the axial positioning reference along the circumferential direction of the elbow, is aligned with the circumferential positioning reference along the axial direction of the elbow, and is provided with a plurality of positioning holes;
the probe can extend into the positioning hole to measure the wall thickness value at the corresponding position under the condition that the positioning tool is arranged on the outer surface of the elbow;
the host is electrically connected with the probe and comprises a display screen for displaying the wall thickness value.
In this embodiment of the application, at different time phases, install the same position at the elbow through with location frock to at least part locating hole resampling on the location frock, and then make the probe measure the wall thickness value of each locating hole corresponding position in proper order, thereby can survey the wall thickness data of different time phases, same measuring point, first data record storehouse and second data record storehouse that forms, follow-up each wall thickness value to first data record storehouse record and each wall thickness value of second data record storehouse record contrast and analysis, can directly perceivedly know the wall thickness change rule.
Moreover, the elbow generally comprises an inlet end and an outlet end, the flushing degree of the elbow part close to the inlet end is relatively serious, and the flushing degree of the elbow part close to the outlet end is relatively small, so that the pipe wall of the elbow part close to the inlet end is relatively thin, the wall thickness value range of the elbow part with relatively serious flushing degree can be known through comparing the data of different time phases and the same measuring point, the flushing wear condition and the wall thickness change rule are known, the elbow part close to the inlet end and the elbow part close to the outlet end can be subjected to position exchange under the necessary condition, and the elbow which is used as the outlet end before replaces the elbow of the inlet end, so that the wall thickness of the elbow which is positioned at the inlet end is larger than the wall thickness of the elbow which is positioned at the outlet end at the moment, the elbow can be continuously used, and the utilization rate of the elbow is improved.
Drawings
FIG. 1 is a flow chart of a wall thickness measurement method disclosed in an embodiment of the present application;
FIG. 2 is a flow chart of a wall thickness measurement method disclosed in another embodiment of the present application;
FIG. 3 is a flow chart of a wall thickness measurement method disclosed in accordance with yet another embodiment of the present application;
FIG. 4 is a schematic diagram of a sample positioning hole and a table according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural view of a wall thickness measuring device disclosed in an embodiment of the present application;
fig. 6 is a schematic diagram of a positioning tool after installation according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a positioning tool disclosed in an embodiment of the present application.
Reference numerals illustrate:
100-positioning a tool; 110-a body portion; 111-a first end face; 112-notch; 113-positioning holes; 120-clamping part;
200-elbow; 210-annular protrusion; 211-an annular locating surface; 220-mounting holes;
300-probe;
400-host.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more.
The wall thickness measuring method and the wall thickness measuring device provided by the embodiment of the application are described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.
Referring to fig. 1 to 4, the wall thickness measuring method disclosed in the embodiment of the present application includes:
s1, installing the positioning tool 100 at a first position of the elbow 200. After the positioning fixture 100 is installed, the position of the positioning fixture 100 defines a range for wall thickness measurement of the subsequent probe 300.
It should be noted that the "first position" does not refer to a fixed position, but refers to a position on the outer surface of the elbow 200.
The positioning tool 100 is a component of a wall thickness measuring device, the wall thickness measuring device mainly comprises a positioning tool 100, a probe 300 and a host 400, the probe 300 is electrically connected with the host 400, the probe 300 is used for falling on the outer surface of the elbow 200 to measure the wall thickness at a corresponding position, a display screen of the host 400 is used for displaying the measured wall thickness value, and the positioning tool 100 is beneficial to positioning the probe 300 at the falling position of the outer surface of the elbow 200, so that deviation of the falling position of the probe 300 is avoided.
Specifically, the installation mode of the positioning tool 100 on the elbow 200 may be various, and the installation mode may be a clamping mode, a bolting mode, or the like, and the installation mode is not limited to the above modes. In addition, the positioning tool 100 can be detached from the outer surface of the elbow 200 later.
S2, sampling at least part of the positioning holes 113 in all the positioning holes 113 on the positioning tool 100, in this embodiment, the positioning tool 100 used is provided with a plurality of positioning holes 113, so that part of the positioning holes 113 in all the positioning holes 113 can be sampled, and all the positioning holes 113 can be sampled. According to the sampling result, the first record carrier is displayed on the display screen of the host computer 400, wherein the first record carrier comprises a plurality of first data recording positions, each first data recording position records a wall thickness value, and at least part of the sampled positioning holes 113 are in one-to-one correspondence with the first data recording positions. Thus, the wall thickness value at the corresponding position of each positioning hole 113 is different, and the first data recording position can be used for recording the wall thickness value at the corresponding position of the positioning hole 113.
Specifically, the number of at least part of the sampled positioning holes 113 may be the same as the number of the first data recording positions, or the number of the first data recording positions may be larger than the number of the sampled positioning holes 113. That is, each of the positioning holes 113 sampled will have a first data recording position for recording the wall thickness value at the corresponding position. In the present embodiment, the number of at least part of the positioning holes 113 sampled is the same as the number of the first data recording positions.
And S3, the probe 300 sequentially stretches into each sampled positioning hole 113, the wall thickness value of the elbow 200 corresponding to each positioning hole 113 is measured, the wall thickness value measured by the probe 300 at the corresponding positioning hole 113 is recorded at each first data recording position, a first data recording library is formed after the wall thickness value is recorded at all the first data recording positions, and the wall thickness measuring process of one measuring point at a certain time stage is completed at the moment. Specifically, in the case where the number of the positioning holes 113 to be sampled is plural, the probe 300 may sequentially extend into each positioning hole 113 in the fixed direction, and of course, the probe 300 may not sequentially extend into the fixed direction to perform measurement, and in any case, the extending order of the probe 300 is not limited.
Alternatively the first record carrier may be a table and the first data recording position may be a cell in the table.
S4, disassembling the positioning tool 100, and reinstalling the positioning tool 100 at the first position of the elbow 200 after the interval time t. The time t may be 10 days, 15 days, 20 days, or the like, which means a period of time when the elbow 200 is put back into use, and during this period of time, the wall thickness value of the elbow 200 is changed again, so that it is necessary to perform the wall thickness measurement again.
Specifically, in the case where the positioning tool 100 is completely attached to the outer surface of the elbow 200, the first position is a position when the positioning tool 100 is completely attached to the outer surface of the elbow 200. That is, the positioning tool 100 is attached to the elbow 200 only when the positioning tool 100 is attached to the elbow 200.
In the case where the positioning jig 100 is not completely attached to the surface of the elbow 200, the positioning jig 100 may be attached to the outer surface of the elbow 200, but the attachment positions of the positioning jig 100 are not fixed, and the attachment positions may be plural. In order to ensure that the positioning tool 100 can be reinstalled at the first position, a measurer can mark the outer surface of the elbow 200 in the installation process of the first step, a certain position of the positioning tool 100 corresponds to the mark, and then in the installation process of the fourth step, the same position of the positioning tool 100 corresponds to the mark again, so that the positioning tool 100 is ensured to be reinstalled at the first position again.
S5, enabling the display screen of the host 400 to display a second record carrier, wherein the second record carrier comprises a plurality of second data recording positions, and at least part of the sampled positioning holes 113 correspond to the second data recording positions one by one. Thus, the wall thickness value at the corresponding position of each positioning hole 113 is different, and the second data recording position can be used to record the wall thickness value at the corresponding position of the positioning hole 113.
Specifically, the number of at least part of the sampled positioning holes 113 may be the same as the number of the second data recording positions, or the number of the second data recording positions may be larger than the number of the sampled positioning holes 113. That is, each of the positioning holes 113 sampled will have a second data recording position to record the wall thickness value at its corresponding position. In the present embodiment, the number of at least part of the positioning holes 113 sampled is the same as the number of the second data recording positions.
Alternatively the second record carrier may be a table and the second data recording position may be a cell. In this embodiment, the first record carrier and the second record carrier are tables, and the first data recording position and the second data recording position are cells, and the two tables are identical.
And S6, the probe 300 stretches into each sampled positioning hole 113 again in sequence, the wall thickness value of the elbow 200 corresponding to each positioning hole 113 is measured, and each second data recording position records the wall thickness value measured by the probe 300 at the corresponding positioning hole 113 respectively, so as to form a second data recording library.
Similarly, when the number of the positioning holes 113 to be sampled is plural, the probe 300 may sequentially extend into each positioning hole 113 in a fixed direction, and the wall thickness value may be sequentially recorded at each second data recording position, or the probe 300 may not sequentially extend into the positioning holes in the fixed direction to perform measurement, or in any case, the extending order of the probe 300 is not limited, and finally, the wall thickness measurement at the corresponding position may be completed for each positioning hole 113 to be sampled.
Thus, in different time phases, the positioning tool 100 is installed at the same position of the elbow 200, at least part of the positioning holes 113 on the positioning tool 100 are sampled again, and then the probe 300 sequentially measures the wall thickness values of the positions corresponding to the positioning holes 113, so that the wall thickness data of different time phases and the same measuring point, namely the formed first data record library and second data record library, can be measured, and the wall thickness change rule can be intuitively known by comparing and analyzing the wall thickness values recorded by the first data record library and the wall thickness values recorded by the second data record library.
Further, the processor in the host 400 can compare the first database with the second database, know the wall thickness change in time t, further calculate the wall thickness change amount in unit time, and predict how long the measured wall thickness of the elbow 200 reaches the minimum limit value, and the elbow 200 needs to be replaced once the wall thickness value is smaller than the minimum limit value.
As shown in fig. 6, the elbow generally includes an inlet end and an outlet end, and the elbow portion near the inlet end is relatively severely flushed and the elbow portion near the outlet end is relatively less flushed, so the wall of the elbow portion near the inlet end is relatively thinner and the wall of the elbow portion near the outlet end is relatively thicker. Before the wall thickness value of the elbow close to the inlet end reaches the minimum limit value, the elbow which is used as the outlet end before can be used for replacing the elbow which is used as the inlet end before, so that after the position is replaced, the wall thickness of the elbow which is positioned at the inlet end is larger than the wall thickness of the elbow which is positioned at the outlet end, and the elbow can be continuously used, thereby improving the utilization rate of the elbow.
In particular, the first database and the second database may be more intuitively compared and analyzed by a form of a bar graph or a line graph or the like.
In a further embodiment, as shown in fig. 5, the elbow 200 itself has an axial positioning reference and a circumferential positioning reference, and the positioning tool 100 is provided with an axial positioning structure and a circumferential positioning structure. In this case, the above-mentioned mounting of the positioning tool 100 at the first position of the elbow 200 specifically includes: the positioning tool 100 is arranged on the outer surface of the elbow 200, and the axial positioning structure of the positioning tool 100 is aligned with the axial positioning reference of the elbow 200 along the circumferential direction of the elbow 200, namely the axial positioning structure and the axial positioning reference are positioned in the same circumferential direction; at the same time, the circumferential positioning structure of the positioning tool 100 is aligned with the circumferential positioning reference of the elbow 200 along the axial direction of the elbow 200, that is, the circumferential positioning structure and the circumferential positioning reference are located in the same axial direction.
Specifically, the installation mode of the positioning tool 100 may be a detachable connection mode such as clamping connection and bolting connection.
So set up, through with axial location structure with axial location benchmark alignment to confirm the axial position of location frock 100, through with circumference location structure with circumference location benchmark alignment, thereby confirm the circumference position of location frock 100, finally confirm the position of location frock 100.
Alternatively, the inner surface of the positioning tool 100 and the outer surface of the elbow 200 can be completely fit, and the above-mentioned mounting the positioning tool 100 on the outer surface of the elbow 200 includes: the positioning tool 100 is clamped on the outer surface of the elbow 200, and the inner surface of the positioning tool 100 is attached to the outer surface of the elbow 200, which is equivalent to sleeving the positioning tool 100 on the outer surface of the elbow 200 by means of external force. In this case, the wall thickness measuring method is the flowchart shown in fig. 2.
Of course, in other embodiments, the positioning tool 100 may be clamped to the outer surface of the elbow 200, but the positioning tool 100 is not completely attached to the elbow 200, and the positioning tool 100 can be installed as well.
By the arrangement, the installation and the disassembly of the positioning tool 100 can be realized quickly and simply in a clamping manner; and the positioning tool 100 is attached to the elbow 200, so that the later-stage probe 300 can conveniently extend into the positioning hole 113 of the positioning tool 100 to accurately measure the wall thickness at the corresponding position.
In this embodiment, as shown in fig. 5, an annular protrusion 210 is disposed on an outer surface of the elbow 200, an axial positioning reference is an annular positioning surface 211 disposed on the annular protrusion 210, and an axial positioning structure is a first end surface 111 of the positioning tool 100. The aligning the axial positioning structure of the positioning tool 100 with the axial positioning reference of the elbow 200 along the circumferential direction of the elbow 200 includes: the first end surface 111 of the positioning tool 100 is in limiting contact with the annular positioning surface 211 in the axial direction of the elbow 200. The first end surface 111 is in axial contact with the annular locating surface 211, which corresponds to alignment of the two in the circumferential direction of the elbow 200.
In this way, the first end surface 111 and the annular positioning surface 211 extend along the circumferential direction, so that after the first end surface 111 and the annular positioning surface 211 are in axial limiting contact, the axial position of the positioning tool 100 can be determined, and the positioning tool 100 can be prevented from moving continuously in the axial direction, so that the axial position of the positioning tool 100 is fixed.
In this embodiment, as shown in fig. 5, the circumferential positioning reference is a mounting hole 220 provided on the surface of the elbow 200, the circumferential positioning structure is a notch 112 provided on the edge of the positioning tool 100, and the circumferential positioning structure of the positioning tool 100 is aligned with the circumferential positioning reference of the elbow 200 along the axial direction of the elbow 200, that is, the mounting hole 220 is aligned with the notch 112 along the circumferential direction of the elbow 200. Specifically, as shown in fig. 7, along the axial direction of the elbow 200, the positioning tool 100 includes a first end surface 111 and a second end surface, and the notch 112 is disposed on the second end surface.
In other embodiments, the notch 112 may be replaced with other indicia structures such as arrows, so long as the indicia structures are aligned with the mounting holes 220.
In this manner, the circumferential position of the positioning tool 100 is determined by the alignment of the mounting hole 220 with the notch 112.
In a further technical solution, as shown in fig. 7, the positioning tool 100 is provided with a plurality of positioning hole groups, the positioning hole groups are arranged at intervals along a first direction, and each positioning hole group includes a plurality of positioning holes 113 sequentially arranged along a second direction, and the first direction and the second direction are mutually perpendicular. As shown in fig. 3, the sampling of at least some of the positioning holes 113 in all the positioning holes 113 on the positioning tool 100 includes: at least one of the plurality of positioning hole groups is sampled, and at least one positioning hole 113 of all positioning holes 113 of each of the sampled positioning hole groups is sampled.
Specifically, the first direction may be an axial direction of the elbow 200, and the second direction is a circumferential direction of the elbow 200; the first direction may be a circumferential direction of the elbow 200, and the second direction may be an axial direction of the elbow 200.
In the present embodiment, each set of pilot holes is sampled, and at least one pilot hole 113 of all sets of pilot holes of each set of pilot holes is sampled. The first record carrier and the second record carrier are tables, the number of rows of the tables is the same as the number of the sampled positioning hole groups, that is, each row of the tables corresponds to one positioning hole group, and the number of cells of each row of the tables is the same as the number of the sampled positioning holes 113 in the corresponding positioning hole group and corresponds to one.
In particular, the tables may select the left-hand alignment, i.e., the first cell of each row of tables is aligned, the second cell of each row of tables is aligned, and so on.
By the arrangement, the arrangement mode of the unit cells is basically the same as that of the sampled positioning holes 113, and the sampled positioning holes 113 can be more intuitively reflected.
In this embodiment, as shown in fig. 4, the positioning hole groups are arranged at intervals along the axial direction of the elbow 200, and the plurality of positioning holes 113 of the same positioning hole group are arranged along the circumferential direction of the elbow 200, for example, the number of rows of the table is 5, and the number of cells of each row is 3, that is, 5 of the positioning hole groups are sampled, and 3 of the positioning holes 113 in the sampled positioning hole groups are sampled.
Optionally, each positioning hole 113 corresponds to a position coordinate, and the first data recording position records the wall thickness value and simultaneously records the position coordinate corresponding to the corresponding positioning hole 113. Of course, the second data recording position may record the position coordinates corresponding to the corresponding positioning hole 113 at the same time of recording the wall thickness value.
Specifically, along the axial direction of the elbow 200, the axial positions corresponding to the respective positioning hole groups may be recorded as 1, 2, 3, 4, 5, 6, … …, and along the circumferential direction of the elbow 200, the circumferential positions corresponding to the respective positioning holes 113 of the same positioning hole group may be recorded as a, b, c, d, e, f … …. Of all the positioning holes 113 shown in fig. 4, the positioning hole 113 with a cross-hatching represents the positioning hole 113 to be sampled, the positioning hole 113 without a cross-hatching represents the positioning hole 113 to be not sampled, and the position coordinates of the sampled positioning holes 113 are recorded in the table in fig. 4, wherein if one of the sampled positioning holes 113 is located in the 2 nd positioning hole group and corresponds to the position c of the positioning hole group, the position coordinates of the positioning hole 113 are 2c, and the corresponding cell not only records the wall thickness value, but also records the position coordinates 2c thereof. Of course, the axial position of each positioning hole group may be recorded as a, b, c, d, e, f … …, and the circumferential positions of the positioning holes 113 of the same positioning hole group may be recorded as 1, 2, 3, 4, 5, and 6 … …, respectively, and the position coordinates of the positioning holes 113 may be c2. Other means of marking the location of each locating hole 113 may be used.
So set up, record the position coordinate of each locating hole 113 that samples in first data record storehouse, later stage resampling is convenient for make the probe 300 stretch into corresponding locating hole 113 according to each position coordinate, and the measurer need not to record or mark the locating hole 113 that samples in addition, and is simple and convenient.
In a further aspect, the wall thickness measuring method further includes: after the first data record library is formed or the second data record library is formed, wall thickness values that are not within the preset wall thickness range are marked. Alternatively, the marking mode may be marking the data of the wall thickness value, or marking the data recording position where the wall thickness value is located, that is, the cell.
In this embodiment, as shown in fig. 3, the wall thickness measuring method further includes:
s31, after a first data record base is formed, marking wall thickness values which are not in a preset wall thickness range;
s61, after the second database is formed, marking the wall thickness values which are not in the preset wall thickness range.
Of course, in other embodiments, it is also possible to mark wall thickness values in the first database and in the second database that are not within the preset wall thickness range after the second database is formed.
Specifically, the preset wall thickness range includes a first preset wall thickness range and a second preset wall thickness range, and marking wall thickness values not in the preset wall thickness range includes: marking the cells with the wall thickness values within a first preset wall thickness range with a first color; marking the cells with the wall thickness values in a second preset wall thickness range with a second color; cells having wall thickness values not within the predetermined wall thickness range are marked with a third color.
In this embodiment, the first preset wall thickness range is 17mm-18mm, the second preset wall thickness range is 18mm-19mm, and the wall thickness range not in the preset wall thickness range is smaller than 17mm.
By means of the arrangement, the wall thickness values in different ranges are marked with different colors, so that the wall thickness values of the corresponding positions of the positioning holes 113 can be displayed more intuitively to be smaller, or the wall thickness of the positions of the elbow 200 is dangerous, and the wall thickness values of the corresponding positions of the positioning holes 113 are in a normal range.
Referring to fig. 5-7, the present application further discloses a wall thickness measuring device, which includes a positioning tool 100, a probe 300 and a host 400. The wall thickness measuring device is applied to the elbow 200, and the elbow 200 is provided with an axial positioning reference and a circumferential positioning reference.
Wherein, location frock 100 helps carrying out the location to the locate position of probe 300 at the surface of elbow 200, avoids the locate position of probe 300 to appear the deviation, and location frock 100 detachably installs in the surface of elbow 200, and location frock 100 is equipped with axial location structure and circumference location structure. Specifically, the detachable installation mode of the positioning tool 100 may be various modes, such as clamping, bolting, and the like. Along the circumferential direction of elbow 200, the axial positioning structure is aligned with the axial positioning reference, i.e., the axial positioning structure and the axial positioning reference are located in the same circumferential direction; along the axial direction of the elbow 200, the circumferential locating feature is aligned with the circumferential locating datum, that is, the circumferential locating feature is co-axially located with the circumferential locating datum.
In this way, the positioning tool 100 is convenient to install and detach in a detachable connection mode; moreover, the axial position of the positioning tool 100 is determined by aligning the axial positioning structure with the axial positioning reference, and the circumferential position of the positioning tool 100 is determined by aligning the circumferential positioning structure with the circumferential positioning reference, so that the installation position of the positioning tool 100 on the elbow 200 is finally determined.
The positioning tool 100 is provided with a plurality of positioning holes 113, and the positioning holes 113 can be regularly distributed or irregularly distributed. In the case that the positioning fixture 100 is mounted on the outer surface of the elbow 200, the plurality of positioning holes 113 respectively correspond to different positions of the outer surface of the elbow 200, and the probe 300 can extend into the different positioning holes 113 to measure wall thickness values at different positions. In this embodiment, as shown in fig. 5, the outer surface of the probe 300 is fitted with the edge of the positioning hole 113.
The host 400 is electrically connected to the probe 300 by wires, and the host 400 includes a display screen for displaying wall thickness values. The host 400 and the probe 300 are equivalent to the wall thickness measuring instrument in the prior art, and mainly utilize the ultrasonic pulse reflection principle to measure the thickness, when the ultrasonic pulse emitted by the probe reaches the interface of the material through the measured object, the pulse is reflected back to the probe, and the thickness of the measured material is determined by accurately measuring the propagation time of the ultrasonic wave in the material.
So set up, this wall thickness measuring device increases location frock 100 to confirm the concrete mounted position of location frock 100 on elbow 200 through axial positioning and circumference location, thereby can make probe 300 accurately fall in same measuring position in different time phases, realize the wall thickness measurement to elbow 200 same measuring point, different time phases, realize the wall thickness value contrast, and then know wall thickness value change rule.
Alternatively, as shown in fig. 5 and fig. 7, the outer surface of the elbow 200 is provided with an annular protrusion 210, the axial positioning reference is an annular positioning surface 211 provided on the annular protrusion 210, the axial positioning structure is a first end surface 111 of the positioning tool 100, the first end surface 111 of the positioning tool 100 is in limiting contact with the annular positioning surface 211 in the axial direction of the elbow 200, which is equivalent to that the annular positioning surface 211 is aligned with the first end surface 111 in the circumferential direction.
By the arrangement, the axial position of the positioning tool 100 can be determined, and the annular positioning surface 211 can also prevent the positioning tool 100 from moving continuously in the axial direction, so that the axial position of the positioning tool 100 is fixed.
Optionally, the circumferential positioning reference is a mounting hole 220 provided on the surface of the elbow 200, the circumferential positioning structure is a notch 112 provided on the edge of the positioning tool 100, and in the axial direction of the elbow 200, the mounting hole 220 is aligned with the notch 112. Specifically, along the axial direction of the elbow 200, the positioning tool 100 includes a first end surface 111 and a second end surface, and the notch 112 is disposed on the second end surface. In this way, the mounting hole 220 is axially aligned with the notch 112 to determine the circumferential position of the positioning tool 100.
In other embodiments, the notch 112 may be replaced with other indicia structures such as arrows that can be used to align the mounting hole 220 to determine the circumferential position.
In an alternative embodiment, as shown in fig. 5-6, the positioning tool 100 is clamped to the outer surface of the elbow 200, and the inner surface of the positioning tool 100 is attached to the outer surface of the elbow 200. That is, the positioning tool 100 can be clamped and disassembled directly by external force. Specifically, a clamping groove may be formed on one of the surfaces of the positioning tool 100 and the elbow 200, and a clamping block may be formed on the other surface, and the clamping block may extend into the clamping groove.
Of course, in other embodiments, the positioning tool 100 is clamped to the elbow 200, but the positioning tool 100 is not completely attached to the elbow 200, and the positioning tool 100 can be installed as well.
By the arrangement, the installation and the disassembly of the positioning tool 100 can be realized quickly and simply in a clamping manner; and the positioning tool 100 is attached to the elbow 200, so that the later-stage probe 300 can conveniently extend into the positioning hole 113 of the positioning tool 100 to accurately measure the wall thickness at the corresponding position.
Alternatively, as shown in fig. 7, the positioning tool 100 includes a main body 110 and at least two clamping groups, wherein the positioning holes 113 are arranged on the main body 110, and the clamping groups are arranged at intervals along the axial direction of the elbow 200; each clamping group comprises two clamping parts 120, the two clamping parts 120 are respectively arranged at two ends of the main body part 110 along the circumferential direction of the elbow 200, and the distance between the two clamping parts 120 is smaller than the outer diameter of the elbow 200. In the present embodiment, the number of the clamping groups is two, and along the axial direction of the elbow 200, the two clamping groups are respectively located at two ends of the main body 110, and the two clamping portions 120 of the same clamping group have the same structure.
When the elbow 200 is installed, the distance between the two clamping parts 120 is increased by external force, so that the distance value between the two clamping parts 120 is slightly larger than the outer diameter of the elbow 200, the elbow 200 can extend into the space enclosed by the positioning tool 100 through the space between the two clamping parts 120, and after the elbow 200 extends in, the distance between the two clamping parts 120 is reduced to the previous distance, so that the positioning tool 100 is sleeved on the outer surface of the elbow 200; similarly, when the positioning tool 100 is detached, an external force acts on the main body 110, the two clamping portions 120 move along the outer surface of the elbow 200, and the distance between the two clamping portions 120 increases, so that the elbow 200 is separated from the space enclosed by the positioning tool 100, and after the elbow 200 is separated, the distance between the two clamping portions 120 is reduced to the previous distance.
Specifically, the clamping portion 120 and the main body portion 110 are integrally formed, and the positioning tool 100 is made of nylon, so that the positioning tool has good strength and toughness, and can be slightly deformed, so that the distance between the two clamping portions 120 can be increased and clamped at the periphery of the elbow 200.
Alternatively, as shown in fig. 7, the positioning tool 100 is provided with a plurality of positioning hole groups, the positioning hole groups are arranged at intervals along a first direction, and each positioning hole group includes a plurality of positioning holes 113 sequentially arranged along a second direction, where the first direction is perpendicular to the second direction. Specifically, the plurality of positioning holes 113 of the same positioning hole group may be arranged at intervals, that is, two adjacent positioning holes 113 may not be communicated, and of course, two adjacent positioning holes 113 may also be communicated, but after the probe 300 extends into one of the positioning holes 113, the position of the probe 300 may not be dislocated.
Alternatively, the first direction may be a circumferential direction of the elbow 200, and the second direction may be an axial direction of the elbow 200, and the number of the positioning holes 113 of each positioning hole group may be the same or different. In the present embodiment, the first direction is the axial direction of the elbow 200, and the second direction is the circumferential direction of the elbow 200.
So arranged, the positioning holes 113 are arranged in a regular manner, so that a measurer can conveniently select which positioning holes 113 are sampled, and simultaneously can conveniently and sequentially measure the wall thickness value of the corresponding position of each positioning hole 113.
Of course, in other embodiments, the alignment holes 113 may be arranged in other ways.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.
Claims (15)
1. A method of wall thickness measurement comprising:
s1, installing a positioning tool (100) at a first position of an elbow (200);
s2, sampling at least part of the positioning holes (113) in all the positioning holes (113) on the positioning tool (100), and enabling a display screen of a host computer (400) to display a first record carrier according to sampling results, wherein the first record carrier comprises a plurality of first data recording positions, and at least part of the sampled positioning holes (113) are in one-to-one correspondence with the first data recording positions;
s3, sequentially extending the probe (300) into each sampled positioning hole (113), measuring the wall thickness value of the elbow position corresponding to each positioning hole (113), and respectively recording the wall thickness value measured by the probe (300) at the corresponding positioning hole (113) at each first data recording position to form a first data recording library;
s4, disassembling the positioning tool (100), and reinstalling the positioning tool (100) at a first position of the elbow (200) after an interval of time t;
s5, enabling a display screen of the host (400) to display a second record carrier, wherein the second record carrier comprises a plurality of second data recording positions, and at least part of sampled positioning holes (113) are in one-to-one correspondence with the second data recording positions;
s6, the probe (300) stretches into each sampled positioning hole (113) in sequence, wall thickness values of elbow positions corresponding to the positioning holes (113) are measured, wall thickness values measured by the probe (300) at the corresponding positioning holes (113) are recorded at the second data recording positions respectively, and a second data recording base is formed.
2. The wall thickness measurement method according to claim 1, wherein the elbow (200) is provided with an axial positioning reference and a circumferential positioning reference, and the positioning fixture (100) is provided with an axial positioning structure and a circumferential positioning structure;
install location frock (100) in first position of elbow (200), include:
the positioning tool (100) is arranged on the outer surface of the elbow (200), the axial positioning structure of the positioning tool (100) is aligned with the axial positioning reference of the elbow (200) along the circumferential direction of the elbow (200), and the circumferential positioning structure of the positioning tool (100) is aligned with the circumferential positioning reference of the elbow (200) along the axial direction of the elbow (200).
3. The wall thickness measuring method according to claim 2, wherein the inner surface of the positioning tool (100) and the outer surface of the elbow (200) can be completely matched, and the mounting of the positioning tool (100) to the outer surface of the elbow (200) comprises:
and the positioning tool (100) is clamped on the outer surface of the elbow (200), and the inner surface of the positioning tool (100) is attached to the outer surface of the elbow (200).
4. The wall thickness measuring method according to claim 2, wherein an outer surface of the elbow (200) is provided with an annular protrusion (210), the axial positioning reference is an annular positioning surface (211) arranged on the annular protrusion (210), and the axial positioning structure is a first end surface (111) of the positioning tool (100);
the aligning the axial positioning structure of the positioning tool (100) with the axial positioning reference of the elbow (200) along the circumferential direction of the elbow (200) comprises:
and enabling the first end surface (111) of the positioning tool (100) to be in limiting contact with the annular positioning surface (211) in the axial direction of the elbow (200).
5. The wall thickness measurement method according to claim 2, wherein the circumferential positioning reference is a mounting hole (220) provided on a surface of the elbow (200), and the circumferential positioning structure is a notch (112) provided on an edge of the positioning tool (100).
6. The wall thickness measurement method according to claim 1, wherein the positioning tool (100) is provided with a plurality of positioning hole groups, the positioning hole groups are arranged at intervals along a first direction, each positioning hole group comprises a plurality of positioning holes (113) sequentially arranged along a second direction, and the first direction is perpendicular to the second direction;
-said sampling at least part of said positioning holes (113) of all positioning holes (113) located on said positioning fixture (100), comprising:
sampling at least one of the plurality of positioning hole groups and sampling at least one of the positioning holes (113) of all of the positioning holes (113) of each of the plurality of positioning hole groups.
7. The wall thickness measurement method according to claim 1, wherein each of the positioning holes (113) corresponds to a position coordinate, and the first data recording position records the wall thickness value and simultaneously records the position coordinate corresponding to the corresponding positioning hole (113).
8. A wall thickness measurement method according to claim 1, further comprising:
after the first data record library or the second data record library is formed, the wall thickness values not within a preset wall thickness range are marked.
9. Wall thickness measuring device applied to an elbow (200), said elbow (200) being provided with an axial positioning reference and a circumferential positioning reference, characterized in that it comprises:
the positioning tool (100), the positioning tool (100) is detachably arranged on the outer surface of the elbow (200), the positioning tool (100) is provided with an axial positioning structure and a circumferential positioning structure, the axial positioning structure is aligned with the axial positioning reference along the circumferential direction of the elbow (200), the circumferential positioning structure is aligned with the circumferential positioning reference along the axial direction of the elbow (200), and the positioning tool (100) is provided with a plurality of positioning holes (113);
a probe (300), wherein the probe (300) can extend into the positioning hole (113) to measure the wall thickness value at a corresponding position under the condition that the positioning tool (100) is installed on the outer surface of the elbow (200);
a host (400), the host (400) being electrically connected with the probe (300), and the host (400) comprising a display screen for displaying the wall thickness value.
10. The wall thickness measuring device according to claim 9, wherein the outer surface of the elbow (200) is provided with an annular protrusion (210), the axial positioning reference is an annular positioning surface (211) arranged on the annular protrusion (210), the axial positioning structure is a first end surface (111) of the positioning tool (100), and the first end surface (111) of the positioning tool (100) is in axial limiting contact with the annular positioning surface (211) at the elbow (200).
11. The wall thickness measuring device according to claim 9, wherein the circumferential positioning reference is a mounting hole (220) provided on a surface of the elbow (200), the circumferential positioning structure is a notch (112) provided on an edge of the positioning fixture (100), and the mounting hole (220) is aligned with the notch (112) in an axial direction of the elbow (200).
12. The wall thickness measuring device according to claim 9, wherein the positioning tool (100) is clamped to the outer surface of the elbow (200), and the inner surface of the positioning tool (100) is attached to the outer surface of the elbow (200).
13. The wall thickness measuring device according to claim 12, wherein the positioning tool (100) comprises a main body portion (110) and at least two clamping groups, the positioning holes (113) are formed in the main body portion (110), and the clamping groups are arranged at intervals along the axial direction of the elbow (200); each clamping group comprises two clamping parts (120), the two clamping parts (120) are respectively arranged at two ends of the main body part (110) along the circumferential direction of the elbow (200), and the distance between the two clamping parts (120) is smaller than the outer diameter of the elbow (200).
14. The wall thickness measuring device according to claim 9, wherein the positioning fixture (100) is provided with a plurality of positioning hole groups, the positioning hole groups are arranged at intervals along a first direction, and each positioning hole group comprises a plurality of positioning holes (113) sequentially arranged along a second direction, and the first direction is perpendicular to the second direction.
15. The wall thickness measuring device according to claim 14, wherein the first direction is an axial direction of the elbow (200) and the second direction is a circumferential direction of the elbow (200).
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| CN202111080010.7A CN113819869B (en) | 2021-09-15 | 2021-09-15 | Wall thickness measuring method and wall thickness measuring device |
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| JP2000161943A (en) * | 1998-11-26 | 2000-06-16 | Hitachi Ltd | Apparatus for measuring pipe thickness |
| JP2006194649A (en) * | 2005-01-12 | 2006-07-27 | Hitachi Ltd | Thickness measurement data management method, ultrasonic thickness measuring device, and plant |
| CN213041190U (en) * | 2020-11-13 | 2021-04-23 | 广东紫晶信息存储技术股份有限公司 | Positioning tool and device for detecting size of optical disc |
| CN112964211A (en) * | 2021-01-22 | 2021-06-15 | 大连理工大学 | Method and device for detecting thickness and surface shape of spherical shell part |
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2021
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000161943A (en) * | 1998-11-26 | 2000-06-16 | Hitachi Ltd | Apparatus for measuring pipe thickness |
| JP2006194649A (en) * | 2005-01-12 | 2006-07-27 | Hitachi Ltd | Thickness measurement data management method, ultrasonic thickness measuring device, and plant |
| CN213041190U (en) * | 2020-11-13 | 2021-04-23 | 广东紫晶信息存储技术股份有限公司 | Positioning tool and device for detecting size of optical disc |
| CN112964211A (en) * | 2021-01-22 | 2021-06-15 | 大连理工大学 | Method and device for detecting thickness and surface shape of spherical shell part |
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Inventor after: Wang Feng Inventor after: Jiang Yibo Inventor after: Zuo Wenlong Inventor before: Jiang Yibo Inventor before: Zuo Wenlong |