CN111561855B - Welding seam inspection device and inspection method - Google Patents
Welding seam inspection device and inspection method Download PDFInfo
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- CN111561855B CN111561855B CN202010576726.5A CN202010576726A CN111561855B CN 111561855 B CN111561855 B CN 111561855B CN 202010576726 A CN202010576726 A CN 202010576726A CN 111561855 B CN111561855 B CN 111561855B
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/061—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness height gauges
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention relates to a welding seam inspection device and an inspection method. The method comprises the following steps: the main scale, the first connecting slide block and the second connecting slide block; the first connecting sliding block and the second connecting sliding block can freely slide or be positioned on the main scale along the length direction of the main scale; one end on the main scale is equipped with first detection pointed end perpendicularly, first connection slider is perpendicular be equipped with second detection pointed end on the length direction of main scale, first detection pointed end with the pointed portion at second detection pointed end all is located same detection water flat line. The invention can simultaneously measure the geometric quantities of weld joint fusion width, extra height, undercut depth or recess depth and the like, has good consistency in the measuring process, simple detection method, obviously improved precision and greatly reduced measuring error.
Description
Technical Field
The invention relates to the technical field of weld joint inspection, in particular to a weld joint inspection device and an inspection method.
Background
The modern technology requires that the geometric quantities of the high-energy beam welding structure, such as weld fusion width, residual height and the like, are strictly controlled within a specific range. The current common measuring tools for measuring the geometric quantity of the welding seam comprise a welding seam inspection gauge and a vernier caliper. The measuring tool comprises a digital display type and a scale line reading type, wherein the reading of the digital display type is more convenient.
The digital display weld seam checking device is a weld seam geometric quantity measuring tool for digitally displaying measurement indicating values, and is mainly used for measuring weld seam surplus height, undercut, depression and the like. The digital display device is usually composed of an electronic display screen, an on-off key, a zero clearing key, a metric-english system conversion key, a battery compartment and the like. Digital vernier calipers, which are also based on digital display measurement indicators, are commonly used length measuring tools.
The existing weld joint inspection gauge, no matter in a digital display type or a scale mark reading type, is provided with two datum measuring planes at fixed distance positions on two sides of a weld joint, the two datum measuring planes are positioned in the same plane, and the height gauge based on the two datum measuring planes and the vertical measuring plane completes measurement of weld joint extra height, undercut or depression.
The existing weld joint inspection gauge does not consider the influence of welding deformation on the measurement error of the geometric dimension of the weld joint, cannot measure the geometric quantities of the weld joint such as weld joint fusion width, undercut width and the like at the same time, and can only use measuring tools such as vernier calipers and the like additionally.
Meanwhile, for the welding seam of the same cross section part, after the welding seam inspection gauge is adopted to measure the extra height of the welding seam, if the undercut depth of the section is required to be measured, the positions of two reference measurement planes are required to be moved, so that the reference error is increased. Similarly, after the weld bead width of the cross section is measured by using the vernier caliper, if the undercut width of the cross section is to be measured, the reference measurement position needs to be found again for measurement, that is, the reference error is likely to become large.
Aiming at the defects, how to provide a welding seam inspection device and an inspection method meets the requirements of not only eliminating the influence of welding deformation on the measurement error of the geometric dimension of the welding seam on the basis of reducing the measurement reference error as much as possible, but also conveniently and quickly measuring the extra height, undercut, recess and width of the welding seam, and is a technical problem to be solved by technical personnel in the field.
Disclosure of Invention
(1) Technical problem to be solved
The first aspect of the embodiment of the invention provides a welding seam inspection device which comprises a main scale, a first connecting slide block and a second connecting slide block. The measurement of indexes such as weld width, weld height, undercut depth or recess depth can be realized.
The second aspect of the embodiment of the invention provides a weld joint inspection method which can obviously improve the inspection efficiency of the weld joint weld width.
The third aspect of the embodiments of the present invention provides a weld inspection method, which can significantly improve the inspection efficiency of weld reinforcement.
The fourth aspect of the embodiments of the present invention provides a weld inspection method, which can significantly improve inspection efficiency of undercut depth or recess depth of a weld.
(2) Technical scheme
A first aspect of an embodiment of the present invention provides a weld inspection apparatus, including: the main scale, the first connecting slide block and the second connecting slide block;
the first connecting sliding block and the second connecting sliding block can freely slide or be positioned on the main scale along the length direction of the main scale;
a first detection tip is vertically arranged at one end of the main scale, a second detection tip is arranged in the length direction of the first connecting slide block vertical to the main scale, and the tips of the first detection tip and the second detection tip are positioned on the same detection horizontal line;
the second connecting slide block comprises a height detection ruler and a third detection tip, the third detection tip is connected to one end of the height detection ruler in the length direction along the length direction of the height detection ruler, the height detection ruler can freely slide or be positioned relative to the vertical direction of the main ruler, and the third detection tip is arranged on a space between the first detection tip and the second detection tip.
Furthermore, the first connecting sliding block and the second connecting sliding block are sleeved on the main ruler.
Further, the other end of the main scale, which is opposite to the first detection tip, is provided with a handle.
Further, the height detection ruler is sleeved on the second connecting slide block.
Furthermore, a first detection display instrument is arranged on the first connecting slide block, and a second detection display instrument is arranged on the second connecting slide block; the first detection display instrument is used for detecting and displaying the distance between the second detection tip and the first detection tip, and the second detection display instrument is used for detecting and displaying the moving distance of the height detection ruler and the distance between the third detection tip and the first detection tip.
The height detection ruler further comprises an external display instrument, and the external display instrument is used for displaying the distance between the second detection tip and the first detection tip, displaying the moving distance of the height detection ruler, and displaying the distance between the third detection tip and the first detection tip.
Further, the handle is followed main scale length direction is equipped with parallel first slide and second slide, be equipped with on the first slide and follow the first that first slide is portable or the location is pushed away and is turned round, be equipped with on the second slide and follow the second that the second slide is portable or the location is pushed away and is turned round, first push away turn round with first link block connects, the second push away turn round with second link block connects.
A second aspect of the embodiments of the present invention provides a method for inspecting a weld, including:
moving the first connecting slide block, enabling the tip parts of the first detection tip and the second detection tip to meet at one point, and recording the scale of the first connecting slide block on the main scale as a first scale at the moment;
and respectively positioning the first detection tip and the second detection tip at the weld toe parts at two sides of the weld joint, recording the scale of the first connecting slide block on the main scale at the moment as a second scale, and taking the distance between the second scale and the first scale as the fusion width of the weld joint.
A third aspect of an embodiment of the present invention provides a method of inspecting a weld, including:
moving the first connection slider and the second connection slider to make the tips of the first detection tip, the second detection tip and the third detection tip meet at a point;
respectively positioning the first detection tip and the second detection tip at weld toe positions on two sides of a weld joint;
recording the scale of the height detection ruler on the second connecting slide block as a third scale;
moving the second connecting slide block and the height detection ruler to enable the height detection ruler to be located right above the residual height of the welding line;
moving the height detection ruler until the third detection tip contacts with the extra height of the welding line, and recording the scale of the height detection ruler on the second connecting slide block as a fourth scale;
and the distance between the fourth scale and the third scale is the surplus height value of the welding seam.
A fourth aspect of the embodiments of the present invention provides a verification method, including:
moving the first connection slider and the second connection slider to make the tips of the first detection tip, the second detection tip and the third detection tip meet at a point;
respectively positioning the first detection tip and the second detection tip at weld toe positions on two sides of a weld joint;
recording the scale of the height detection ruler on the second connecting slide block as a fifth scale;
moving the second connecting slide block and the height detection ruler to enable the height detection ruler to be located right above an undercut or a recess of a welding line;
moving the height detection ruler until the third detection tip contacts with the undercut or the depression, and recording the scale of the height detection ruler on the second connecting slide block as a sixth scale;
the distance between the sixth scale and the fifth scale is the undercut depth or the recessed depth of the welding seam.
(3) Advantageous effects
The invention unifies the geometric measurement benchmark of the welding line with the same cross section, eliminates the dependency of the existing measuring tool on two or more benchmark measuring planes, avoids the measuring error influence of welding deformation on the geometric dimension of the welding line, also solves the dependency of the conventional welding line inspection gauge on the benchmark planes when the welding line with a certain inclination angle on the curved surface welding line of the detection space, simplifies the measurement benchmark and improves the detection efficiency.
Meanwhile, the invention can simultaneously measure the geometric quantities such as weld bead fusion width, excess height, undercut depth or recess depth and the like, has good consistency in the measuring process, simple detection method, obviously improved precision, greatly reduced measuring error and wider application range.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic top view of a weld inspection apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic front view of a weld inspection apparatus according to an embodiment of the present invention.
Fig. 3 is a side view schematic of fig. 2.
Fig. 4 is a schematic structural diagram of a second connecting slider in the embodiment of the present invention.
Fig. 5 is a schematic structural view of a handle in an embodiment of the present invention.
Fig. 6 is a schematic diagram of a state of an initial zero clearing position of the weld inspection apparatus according to the embodiment of the present invention.
FIG. 7 is a schematic diagram of measuring weld bead width and weld bead height with certain weld distortion or with certain dip angle according to an embodiment of the present invention.
FIG. 8 is a schematic diagram of measuring weld bead width and weld bead height with a concave space curved surface according to an embodiment of the invention.
FIG. 9 is a schematic diagram of measuring weld bead width and weld bead height with a convex spatial curved surface according to an embodiment of the present invention.
FIG. 10 is a schematic diagram of measuring weld bead width and undercut depth with concave space curved surfaces according to an embodiment of the present invention.
FIG. 11 is a schematic diagram of measuring weld bead fusion width and recess depth with concave spatial surfaces according to an embodiment of the present invention.
In the figure: 1-main ruler; 2-a first connecting slide; 3-a second connecting slide block; 4-a first detection display instrument; 5-a second detection display instrument; 6-height detection ruler; 7-a first detection tip; 8-a second detection tip; 9-a third detection tip; 10-a fastening screw; 11-a first limit boss; 12-a second limit boss; 13-a handle; 131-a first slideway; 132-a second slide; 133-first push button; 134-second push button; 135-a first button; 136-a second button; 14-external display; 15-a first channel; 16-a second channel; 17-a reference plane block; 18-welding seam.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention and are not intended to limit the scope of the invention, i.e., the invention is not limited to the embodiments described, but covers any modifications, alterations, and improvements in the parts, components, and connections without departing from the spirit of the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The present application will be described in detail with reference to the accompanying examples and figures 1-11.
Referring to fig. 1 to 2, a weld testing apparatus according to a first aspect of an embodiment of the present invention includes: main scale 1, first link block 2 and second link block 3.
The first connecting slide block 2 and the second connecting slide block 3 can freely slide or be positioned on the main scale 1 along the length direction of the main scale 1; a first detection tip 7 is vertically arranged at one end of the main scale 1, a second detection tip 8 is arranged in the length direction of the first connecting slide block 2 vertical to the main scale 1, and the tips of the first detection tip 7 and the second detection tip 8 are both positioned on the same detection horizontal line; the second connecting slide block 3 comprises a height detection ruler 6 and a third detection tip 9, the third detection tip 9 is connected to one end of the height detection ruler 6 in the length direction along the length direction of the height detection ruler 6, the height detection ruler 6 can freely slide or be positioned relative to the vertical direction of the main ruler 1, and the third detection tip 9 is arranged on the space between the first detection tip 7 and the second detection tip 8.
In the weld seam testing device according to the first aspect of the embodiment of the present invention, when measuring the weld seam weld width, the main scale 1 may be used as a measurement basis, the first detection tip 7 and the second detection tip 8 on the same detection horizontal line may be used as measurement reference surfaces, the first detection tip 7 and the second detection tip 8 are provided with a reference for unifying the geometric measurement of the weld seam with the same cross section, and the distance between the first detection tip 7 and the second detection tip 8 may be calculated as the weld seam weld width value by using the distance that the second detection tip 8 moves on the main scale 1.
Meanwhile, when the extra height value, the undercut depth or the recess depth of the weld joint is measured, the height detection ruler 6 can be used as a measurement basis, the first detection tip 7 and the second detection tip 8 which are positioned on the same detection horizontal line are used as measurement reference surfaces, and the moving distance of the height detection ruler 6 in the direction vertical to the main ruler 1 is used as the numerical value of the extra height, the undercut depth or the recess depth of the weld joint.
According to the embodiment of the invention, the geometric quantity measuring benchmark of the welding line with the same cross section is unified, the dependence of the existing measuring tool on two or more benchmark measuring planes is eliminated, the measuring error influence of welding deformation on the geometric size of the welding line is avoided, the dependence of the conventional welding line inspection gauge on the benchmark plane when the welding line with a certain inclination angle and the welding line with a space curved surface are detected is also solved, the measuring benchmark is simplified, and the detection efficiency is improved. Meanwhile, the embodiment of the invention can simultaneously measure the geometric quantities such as weld bead fusion width, excess height, undercut depth or depression depth and the like based on the detection functions of the vernier caliper and the conventional weld bead inspection ruler, and has the advantages of good consistency in the measurement process, simple detection method, obviously improved precision, greatly reduced measurement error and wider application range.
Meanwhile, in the embodiment of the invention, the other end of the height detection ruler 6 can be provided with a first limit boss 11, and a second limit boss 12 can be arranged near the third detection tip 9.
Further, in order to facilitate the fixing of the first connecting slider 2 and the second connecting slider 3 on the main scale 1, fastening screws 10 are respectively disposed on the first connecting slider 2 and the second connecting slider 3.
Specifically, referring to fig. 1 to 2, according to the weld inspection apparatus of the first aspect of the embodiment of the present invention, the first connection slider 2 and the second connection slider 3 may be fitted over the main scale 1. When the first connecting slide block 2 and the second connecting slide block 3 are sleeved on the main scale 1, on one hand, the first connecting slide block 2 and the second connecting slide block 3 can be very conveniently fixed, and the first connecting slide block 2 and the second connecting slide block 3 can be ensured to freely slide or be positioned along the length direction of the main scale 1; on the other hand, the melt width can be calculated by using the scale on the main scale 1 and the position of the first link block 2 (for example, the change of the scale on the main scale 1 can be judged by using the position of the left end face of the first link block 2 as a reference).
Further, referring to fig. 1 to 2, in the weld seam verifying apparatus according to the first aspect of the embodiment of the present invention, a handle 13 is provided at the other end of the main scale 1 opposite to the first detecting tip 7. The handle 13 is convenient to hold and operate, reduces the effect of palm external force on other parts, and reduces the deformation of the whole device, thereby being beneficial to keeping the use precision and prolonging the service life.
Further, referring to fig. 1 to 4, in the weld inspection apparatus according to the first aspect of the embodiment of the present invention, the height detection ruler 6 may be sleeved on the second connection slider 3. When the height detection ruler 6 can be sleeved on the second connecting slide block 3, on one hand, the height detection ruler 6 can be very conveniently fixed, and the height detection ruler 6 can be ensured to freely slide or be positioned along the vertical direction of the length of the main ruler 1; on the other hand, the height of the height detection scale 6 and the position of the second link block 3 can be used to calculate the height, undercut depth, or recess depth (for example, the change of the scale on the height detection scale 6 can be determined by referring to the position of the lower end surface of the second link block 3).
Specifically, referring to fig. 1-2, according to another embodiment of the first aspect of the present invention, a first detecting and displaying device 4 is disposed on the first connecting sliding block 2, and a second detecting and displaying device 4 is disposed on the second connecting sliding block 3; the first sensing indicator 4 is used for sensing and indicating the distance of the second sensing tip 8 from the first sensing tip 7, and the second sensing indicator 5 is used for sensing and indicating the distance of the height sensing ruler 6 and the distance of the third sensing tip 9 from the first sensing tip 7. The first detection display instrument 4 and the second detection display instrument 5 can automatically detect and display the distance between the second detection tip 8 and the first detection tip 7, the distance between the height detection ruler 6 and the distance between the third detection tip 9 and the first detection tip 7, so that the accuracy of detection results can be guaranteed, human errors can be reduced, and the labor intensity can be reduced.
It should be noted that, the first detection display 4 and the second detection display 5 can adopt a structure of the prior art, such as a digital micrometer working principle, to detect the distance between the second detection tip 8 and the first detection tip 7, the distance between the height detection ruler 6 and the distance between the third detection tip 9 and the first detection tip 7. For example, a grating is used as a measuring scale, a strain signal of one period is output every time the measuring scale moves by one scale pitch, and the displacement can be known by counting the period of change of an optoelectronic signal.
Specifically, referring to fig. 2, the weld inspection apparatus according to another embodiment of the first aspect of the present invention further includes an external display 14, where the external display 14 is used to display the distance between the second detection tip 8 and the first detection tip 7, display the distance that the height detection ruler 6 moves, and display the distance 7 between the third detection tip 9 and the first detection tip. Set up external display instrument 14, it is relative to first distance, the distance that height detection chi 6 removed and third detection pointed end 9 that first detection display instrument 4 and second detection display instrument 5 detected second detection pointed end 8 and first detection pointed end 7 the distance back accessible wireless or wired mode transmission to external display instrument 14, external display instrument 14 set up in the outside of not spacious structure and can with first detection display instrument 4 and second detection display instrument 5 can the communication connection and record in real time, conveniently detect the reading.
Specifically, referring to fig. 2 and 5, in another embodiment of the first aspect of the present invention, the handle 13 is provided with a first slide rail 131 and a second slide rail 132 along a length direction of the main scale 1, the first slide rail 131 is provided with a first push button 133 movable or positionable along the first slide rail 131, the second slide rail 132 is provided with a second push button 134 movable or positionable along the second slide rail 132, the first push button 133 is connected to the first connecting slider 2, and the second push button 134 is connected to the second connecting slider 3. The first push button 133 can slide in the first sliding way 131 in a translational manner and realize synchronous sliding with the first connecting slide block 2, and the second push button 134 can slide in the second sliding way 132 in a translational manner and realize synchronous sliding with the second connecting slide block 3. When the handle 13 is held by hand, the first push button 133 and the second push button 134 can be conveniently pushed by the thumb to respectively slide the first connecting slide block 2 and the second connecting slide block 3 on the main scale 1, so that the operation is more convenient.
Specifically, as shown in fig. 5, the fastening screw 10 may be replaced by a follow-up locking button disposed beside the push button, i.e., a follow-up first button 135 disposed beside the first push button 133 and a follow-up second button 136 disposed beside the second push button 134. After the first connecting slide block 2 and the second connecting slide block 3 slide on the main scale 1 to the measuring position, the locking of the connecting slide blocks can be realized by pressing the locking button, and the functions of the connecting slide blocks are the same as those of the fastening screw.
According to a second aspect of the embodiments of the present invention, a method for inspecting a weld includes:
moving the first connecting slide block 2, enabling the tip parts of the first detection tip 7 and the second detection tip 8 to be intersected at one point, and recording the scale of the first connecting slide block 2 on the main scale 1 as a first scale at the moment;
the first detection tip 7 and the second detection tip 8 are respectively located at the weld toe positions on two sides of the weld joint, the scale of the first connecting slide block 2 on the main scale 1 at the moment is recorded as a second scale, and the distance between the second scale and the first scale is the weld width of the weld joint.
In the embodiment of the present invention, first, the first connecting slider 2 is moved, the tip of the first detecting tip 7 and the tip of the second detecting tip 8 meet at a point, so that the first connecting slider 2 is moved to one end of the main scale 1 for the purpose of returning to zero position, and the scale of the first connecting slider 2 on the main scale 1 at this time is recorded as the first scale. Then, the first detection tip 7 and the second detection tip 8 are separated and are respectively positioned at the weld toe parts at two sides of the weld joint, and the first detection tip 7 and the second detection tip 8 are positioned on the same detection horizontal line, so that the reference of the geometric measurement of the weld joint with the same cross section is unified, the dependence of the existing measuring tool on two or more reference measuring planes is eliminated, and the influence of welding deformation on the measurement error of the geometric dimension of the weld joint is avoided. And finally, recording the scale of the first connecting slide block 2 on the main scale 1 as a second scale, and then, the distance between the second scale and the first scale is the weld width of the weld joint.
The inspection method utilizes any inspection device of the first aspect of the embodiment of the invention, takes the main scale 1 as a measurement basis, takes the first detection tip 7 and the second detection tip 8 on the same detection horizontal line as measurement reference surfaces, unifies the reference of the geometric measurement of the welding seam with the same cross section, and utilizes the moving distance of the second detection tip 8 on the main scale 1 to conveniently calculate the distance between the first detection tip 7 and the second detection tip 8 as the fusion width value of the welding seam.
For example, another embodiment of the present invention. First, when the handle 13 can be held with one hand and both the first link block 2 and the second link block 3 are slid to the leftmost end of the main scale 1 by pushing the first push button 133 and the second push button 134, the slide height detecting scale 6 positions the third detecting tip 9 on the surface of the reference plane block 17, and at this time, the tips of the first detecting tip 7, the second detecting tip 8 and the third detecting tip 9 meet at one point, as shown in fig. 6. Then, the clear keys of the first detection indicator 4 and the second detection indicator 5 are pressed to clear.
Next, the weld bead width was measured. As shown in fig. 7 to 11, by pushing the first push button 133 and the second push button 134, the first detection tip 7 and the second detection tip 8 are respectively located at the weld toe parts on both sides of the weld joint 18, and the value of the electronic display screen of the first detection display 4 is read, which is the selected weld joint cross section weld width dimension B.
Of course, in the embodiment of the present invention, the first connecting slider 2 and the second connecting slider 3 may be directly moved by an external force; when recording the melt width dimension B, it can be calculated by observing the position of the first connecting slider 2 on the main scale 1 when the first detecting tip 7 and the second detecting tip 8 are respectively located at the weld toe parts on both sides of the weld seam, and the position of the first connecting slider 2 on the main scale 1.
According to the third aspect of the embodiment of the invention, the method for inspecting the welding seam comprises the following steps:
moving the first connecting slide block 2 and the second connecting slide block 3 to make the tips of the first detecting tip 7, the second detecting tip 8 and the third detecting tip 9 meet at one point;
respectively positioning a first detection tip 7 and a second detection tip 8 at the weld toe parts on two sides of a weld joint;
recording the scale of the height detection ruler 6 on the second connecting slide block 3 as a third scale;
moving the second connecting slide block 3 and the height detection ruler 6 to enable the height detection ruler 6 to be located right above the extra height of the welding line;
moving the height detection ruler 6 until the third detection tip 9 is contacted with the extra height of the welding seam, and recording the scale of the height detection ruler 6 on the second connecting slide block 3 as a fourth scale;
the distance between the fourth scale and the third scale is the surplus height value of the welding seam.
In the embodiment of the invention, the first connecting slide block 2 and the second connecting slide block 3 are firstly moved, the tip parts of the first detecting tip 7, the second detecting tip 8 and the third detecting tip 9 are intersected at one point, so that the first connecting slide block 2 and the second connecting slide block 3 are moved to one end of the main scale 1, the height detecting scale 6 is moved to the initial position in the direction vertical to the main scale 1 to achieve the purpose of position zeroing, and then the scale of the height detecting scale 6 on the second connecting slide block 3 is recorded as the third scale when the position is zeroed. Then, the first detection tip 7 and the second detection tip 8 are separated and are respectively positioned at the weld toe parts at two sides of the weld joint, and the first detection tip 7 and the second detection tip 8 are positioned on the same detection horizontal line, so that the purpose of unifying the reference of the geometric measurement of the weld joint with the same cross section is realized, the dependence of the existing measuring tool on two or more reference measuring planes can be effectively eliminated, and the influence of welding deformation on the measurement error of the geometric dimension of the weld joint is avoided. Meanwhile, the height detection ruler 6 is moved until the third detection tip 9 contacts with the extra height of the welding seam, the scale of the height detection ruler 6 on the second connecting slide block 3 is recorded as a fourth scale, and the distance between the fourth scale and the third scale is the extra height value of the welding seam.
The inspection method of the embodiment of the invention utilizes any inspection device of the first aspect of the embodiment of the invention, takes the height detection ruler 6 as a measurement basis, takes the first detection tip 7 and the second detection tip 8 which are positioned on the same detection horizontal line as a measurement reference plane, and utilizes the distance moved by the height detection ruler 6 on the vertical main ruler 1 as a surplus height value on the basis of unifying the reference of geometric measurement of the welding seam with the same cross section. The method has the advantages of accurate measurement result and simple detection process.
For example, another embodiment of the present invention. First, when the handle 13 can be held with one hand and both the first link block 2 and the second link block 3 are slid to the leftmost end of the main scale 1 by pushing the first push button 133 and the second push button 134, the slide height detecting scale 6 positions the third detecting tip 9 on the surface of the reference plane block 17, and at this time, the tips of the first detecting tip 7, the second detecting tip 8 and the third detecting tip 9 meet at one point, as shown in fig. 6. Then, the clear keys of the first detection indicator 4 and the second detection indicator 5 are pressed to clear.
Then, the weld reinforcement value is measured. As shown in fig. 7-9, the second connecting slider 3 is slid to the height detection ruler 6 and located right above the extra height by pushing the second push button 134, then the height detection ruler 6 is slid until the third detection tip 9 contacts with the extra height of the weld joint, and the value of the electronic display screen of the second detection display 5 is read, namely the selected transverse position Δ x of the cross section of the weld joint and the value h of the extra height there.
Of course, as shown above, in the embodiment of the present invention, the first connecting slider 2 and the second connecting slider 3 may be directly moved by an external force; when recording the extra height value h, can calculate through the position on second link block 3 of observing the zero clearance of height detection chi 6 and when the position of height detection chi 6 on second link block 3 when height detection chi 6 that slides contacts with the welding seam extra height.
A method of inspecting a weld according to a fourth aspect of the embodiment of the present invention includes:
moving the first connecting slide block 2 and the second connecting slide block 3 to make the tips of the first detecting tip 7, the second detecting tip 8 and the third detecting tip 9 meet at one point;
respectively positioning a first detection tip 7 and a second detection tip 8 at the weld toe parts on two sides of a weld joint;
recording the scale of the height detection ruler 6 on the second connecting slide block 3 as a fifth scale;
moving the second connecting slide block 3 and the height detection ruler 6 to enable the height detection ruler 6 to be located right above the undercut or the depression of the welding line;
moving the height detection ruler 6 until the third detection tip 9 is in contact with the undercut or the depression, and recording the scale of the height detection ruler 6 on the second connecting slide block 3 as a sixth scale;
the distance between the sixth scale and the fifth scale is the undercut depth or the recessed depth of the welding seam.
In the embodiment of the invention, the first connecting slide block 2 and the second connecting slide block 3 are firstly moved, the tip parts of the first detecting tip 7, the second detecting tip 8 and the third detecting tip 9 are intersected at one point, so that the first connecting slide block 2 and the second connecting slide block 3 are moved to one end of the main scale 1, the height detecting scale 6 is moved to the initial position in the direction vertical to the main scale 1 to achieve the purpose of position zeroing, and then the scale of the height detecting scale 6 on the second connecting slide block 3 is recorded as the fifth scale when the position is zeroed. Then, the first detection tip 7 and the second detection tip 8 are separated and are respectively positioned at the weld toe parts at two sides of the weld joint, and the first detection tip 7 and the second detection tip 8 are positioned on the same detection horizontal line, so that the purpose of unifying the reference of the geometric measurement of the weld joint with the same cross section is realized, the dependence of the existing measuring tool on two or more reference measuring planes can be effectively eliminated, and the influence of welding deformation on the measurement error of the geometric dimension of the weld joint is avoided. Then, the second connecting slide block 3 and the height detecting ruler 6 are moved, so that the height detecting ruler 6 is located right above the undercut or the depression of the weld, the height detecting ruler 6 is moved until the third detecting tip 9 is in contact with the undercut or the depression, the scale of the height detecting ruler 6 on the second connecting slide block 3 at the moment is recorded as a sixth scale, and the distance between the sixth scale and the fifth scale is the undercut depth or the depression depth of the weld.
The inspection method of the embodiment of the invention utilizes any inspection device of the first aspect of the embodiment of the invention, takes the height detection ruler 6 as a measurement basis, takes the first detection tip 7 and the second detection tip 8 which are positioned on the same detection horizontal line as a measurement reference plane, and utilizes the distance moved by the height detection ruler 6 on the vertical main ruler 1 as a surplus height value on the basis of unifying the reference of geometric measurement of the welding seam with the same cross section. The method has the advantages of accurate measurement result and simple detection process.
For example, another embodiment of the present invention. First, when the handle 13 can be held with one hand and both the first link block 2 and the second link block 3 are slid to the leftmost end of the main scale 1 by pushing the first push button 133 and the second push button 134, the slide height detecting scale 6 positions the third detecting tip 9 on the surface of the reference plane block 17, and at this time, the tips of the first detecting tip 7, the second detecting tip 8 and the third detecting tip 9 meet at one point, as shown in fig. 6. Then, the clear keys of the first detection indicator 4 and the second detection indicator 5 are pressed to clear.
Next, the undercut depth or the recess depth of the weld was measured. As shown in fig. 10-11, after measuring a plurality of Δ x and h of the same weld cross section, the geometric shape of the weld surface with very high accuracy can be conveniently fitted by means of conventional image processing software; similarly, when the same welding seam cross section has both extra height and undercut or recess, the geometric shape of the welding seam surface with very high accuracy can be conveniently fitted by means of conventional image processing software after h, delta r and delta h at a plurality of delta x positions of the same welding seam cross section are measured. The second connecting slide block 3 is made to slide to the height detection ruler 6 to be located right above the undercut depth or the depression depth by pushing the second push button 134, then the height detection ruler 6 is made to slide until the third detection tip 9 is in contact with the undercut depth and the depression depth of the welding seam in sequence, and the value of the electronic display screen of the second detection display instrument 5 is read, namely the selected transverse position delta x of the cross section of the welding seam and the value delta h of the transverse position delta x.
Of course, as shown above, in the embodiment of the present invention, the first connecting slider 2 and the second connecting slider 3 may be directly moved by an external force; when the undercut depth Δ r or the recess depth Δ h is recorded, the position of the height detection ruler 6 on the second connecting slide block 3 when the height detection ruler 6 is observed to be cleared and the position of the height detection ruler 6 on the second connecting slide block 3 when the sliding height detection ruler 6 is in contact with the weld reinforcement height can be calculated.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. For embodiments of the method, reference is made to the description of the apparatus embodiments in part. The present invention is not limited to the specific steps and structures described above and shown in the drawings. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.
The above description is only an example of the present application and is not limited to the present application. Various modifications and alterations to this application will become apparent to those skilled in the art without departing from the scope of this invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (8)
1. A weld inspection device, comprising:
the main scale, the first connecting slide block and the second connecting slide block;
the first connecting sliding block and the second connecting sliding block can freely slide or be positioned on the main scale along the length direction of the main scale;
a first detection tip is vertically arranged at one end of the main scale, a second detection tip is arranged in the length direction of the first connecting slide block vertical to the main scale, and the tips of the first detection tip and the second detection tip are positioned on the same detection horizontal line;
the second connecting slide block comprises a height detection ruler and a third detection tip, the third detection tip is connected to one end of the height detection ruler in the length direction along the length direction of the height detection ruler, the height detection ruler can freely slide or be positioned relative to the vertical direction of the main ruler, and the third detection tip is arranged on a space between the first detection tip and the second detection tip;
the first detection tip and the second detection tip are arranged in a coplanar manner, and the third detection tip is arranged by being attached to the plane where the first detection tip and the second detection tip are located;
the main scale is relative the other end at first detection point end is equipped with the handle, the handle is followed main scale length direction is equipped with parallel first slide and second slide, be equipped with on the first slide along the first portable or first pushing away of location is turned round, be equipped with on the second slide along the second that the second slide is portable or the location pushes away and turns round, first push away turn round with first link block connects, the second push away turn round with second link block connects.
2. The weld testing device according to claim 1, wherein the first connecting slider and the second connecting slider are sleeved on the main scale.
3. The weld inspection device according to claim 1, wherein the height detection ruler is sleeved on the second connecting slide block.
4. The welding seam inspection device according to claim 1, wherein a first detection display instrument is arranged on the first connecting slide block, and a second detection display instrument is arranged on the second connecting slide block; the first detection display instrument is used for detecting and displaying the distance between the second detection tip and the first detection tip, and the second detection display instrument is used for detecting and displaying the moving distance of the height detection ruler and the distance between the third detection tip and the first detection tip.
5. The weld inspection device according to claim 4, further comprising an external display for displaying the distance between the second inspection tip and the first inspection tip, the distance traveled by the height ruler, and the distance traveled by the third inspection tip and the first inspection tip.
6. A weld inspection method using the weld inspection apparatus according to any one of claims 1 to 5, comprising:
moving the first connecting slide block, enabling the tip parts of the first detection tip and the second detection tip to meet at one point, and recording the scale of the first connecting slide block on the main scale as a first scale at the moment;
and respectively positioning the first detection tip and the second detection tip at the weld toe parts at two sides of the weld joint, recording the scale of the first connecting slide block on the main scale at the moment as a second scale, and taking the distance between the second scale and the first scale as the fusion width of the weld joint.
7. A weld inspection method using the weld inspection apparatus according to any one of claims 1 to 5, comprising:
moving the first connection slider and the second connection slider to make the tips of the first detection tip, the second detection tip and the third detection tip meet at a point;
respectively positioning the first detection tip and the second detection tip at weld toe positions on two sides of a weld joint;
recording the scale of the height detection ruler on the second connecting slide block as a third scale;
moving the second connecting slide block and the height detection ruler to enable the height detection ruler to be located right above the residual height of the welding line;
moving the height detection ruler until the third detection tip contacts with the extra height of the welding line, and recording the scale of the height detection ruler on the second connecting slide block as a fourth scale;
and the distance between the fourth scale and the third scale is the surplus height value of the welding seam.
8. A weld inspection method using the weld inspection apparatus according to any one of claims 1 to 5, comprising:
moving the first connection slider and the second connection slider to make the tips of the first detection tip, the second detection tip and the third detection tip meet at a point;
respectively positioning the first detection tip and the second detection tip at weld toe positions on two sides of a weld joint;
recording the scale of the height detection ruler on the second connecting slide block as a fifth scale;
moving the second connecting slide block and the height detection ruler to enable the height detection ruler to be located right above an undercut or a recess of a welding line;
moving the height detection ruler until the third detection tip contacts with the undercut or the depression, and recording the scale of the height detection ruler on the second connecting slide block as a sixth scale;
the distance between the sixth scale and the fifth scale is the undercut depth or the recessed depth of the welding seam.
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| CN202010576726.5A CN111561855B (en) | 2020-06-23 | 2020-06-23 | Welding seam inspection device and inspection method |
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| CN202010576726.5A CN111561855B (en) | 2020-06-23 | 2020-06-23 | Welding seam inspection device and inspection method |
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| CN113405595B (en) * | 2021-05-28 | 2022-03-15 | 广东省科学院中乌焊接研究所 | Welding groove measuring instrument and using method thereof |
| CN115342706B (en) * | 2022-10-18 | 2023-01-24 | 西安成立航空制造有限公司 | Aero-engine flame tube welding position size measuring device |
| CN116379992B (en) * | 2023-06-07 | 2023-08-29 | 泰安市特种设备检验研究院 | Rotary shell geometric dimension measuring device and use method thereof |
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| CN103673824A (en) * | 2013-12-13 | 2014-03-26 | 哈尔滨锅炉厂有限责任公司 | Double-base weld bead height measuring scale and method |
| KR200481727Y1 (en) * | 2015-04-23 | 2016-11-03 | 삼성중공업 주식회사 | United gauge for welding inspection |
| CN207019564U (en) * | 2017-07-27 | 2018-02-16 | 中国十九冶集团有限公司 | Digital display detection ruler for welding line |
| CN209371988U (en) * | 2018-12-20 | 2019-09-10 | 渤海造船厂集团有限公司 | Fillet weld concave-convex surface Float Gauge for Measuring |
| CN209371950U (en) * | 2018-12-24 | 2019-09-10 | 渤海造船厂集团有限公司 | A kind of weld joint inspection ruler |
| CN210154482U (en) * | 2019-09-03 | 2020-03-17 | 中国十九冶集团有限公司 | Digital display welding seam detection ruler |
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