Welding seam size detection tool and method

Abstract

The invention belongs to the technical field of welding seam detection, and relates to a welding seam size detection tool and method. The base serves as a basic structure of the whole detection tool, so that the measurement precision is prevented from being influenced by shaking or displacement. The linear sliding unit can drive the dial indicator connected with the linear sliding unit to slide in the linear direction, so that the dial indicator can move to different measurement positions of the weld joint according to needs, and the height dimensions of different parts of the weld joint are measured. And the welding component limiting unit is used for limiting and fixing the detected welding component. The three-dimensional adjustable connecting part allows the dial indicator to accurately adjust the measuring position and angle of the dial indicator according to the specific position and shape of the weld joint, so that the measuring head of the dial indicator can accurately contact the surface of the weld joint. According to the invention, aiming at the characteristics of complex structure, various molded surfaces and complex welding seam surface condition of a welding type assembly, through cooperative work of all parts, the difficulty faced by a traditional measuring tool in measuring the height size of a welding seam is effectively solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of weld detection, and relates to a weld size detection tool and method. BACKGROUND

[0002] In the field of modern industrial manufacturing, welding components occupy an extremely important position and are widely used in many key industries such as aerospace, automobile manufacturing, shipbuilding, pressure vessels, etc. These welding components generally have the characteristics of complex structure and diverse profile.

[0003] From the structural point of view, welding components are often composed of multiple parts of different shapes and sizes connected by welding process. The structure may contain various complex geometric shapes such as curved surfaces, angles, holes, etc. These structures are combined to form a very complex overall structure. The diversity of profile is a major feature of welding components. Different application scenarios and design requirements result in a wide variety of welding component profiles. Some profiles are regular geometric shapes, but more are free-form surfaces or irregular profiles. This diversity of profiles not only increases the difficulty of manufacturing processes, but also puts higher requirements on subsequent quality detection.

[0004] Among them, the surface condition at the weld is particularly complex. During the welding process, due to the effects of high-temperature melting and cooling and solidification, the surface at the weld often presents an irregular shape with unevenness. This irregular shape is not simply a geometric fluctuation, but contains various subtle waves, wrinkles, depressions and protrusions, etc. Moreover, different welding processes, welding materials and welding parameters will have a significant impact on the shape of the weld surface.

[0005] Under some extremely strict special standards for product quality, accurate measurement of the height of the weld becomes a crucial task. The height of the weld directly affects the strength, sealing, fatigue life and other key performance indicators of the welding component.

[0006] However, in actual work practice, it is difficult to accurately measure the height of the weld. Traditional general measuring tools such as calipers, micrometers, etc. are difficult to adapt to the uneven and irregular characteristics of the weld surface due to the limitations of their measurement principles and structures, and cannot accurately obtain the true height of the weld. In addition, some contact measurement methods may cause damage to the weld surface, affecting product quality; while non-contact measurement methods, although avoiding physical contact, have certain limitations in terms of measurement accuracy, stability and adaptability to complex profiles. SUMMARY

[0007] The purpose of the present application is to provide a welding seam size detection tool and method to solve the technical problems of damage to the welding seam surface by contact measurement method, and insufficient measurement accuracy and stability by non-contact measurement method in the height size detection of the welding seam.

[0008] In order to achieve the above purpose, the present application adopts the following technical solutions: In a first aspect, the present application provides a welding seam size detection tool, comprising a base, a linear sliding unit and a welding part limiting unit are arranged on the base, the linear sliding unit is connected to a dial gauge through a three-dimensional adjustable connecting part.

[0009] Further, the linear sliding unit comprises: A linear sliding groove is opened on the base; A sliding block is slidably connected with the linear sliding groove, and the three-dimensional adjustable connecting part is detachably fixedly connected with the sliding block.

[0010] Further, the three-dimensional adjustable connecting part comprises: A dial gauge stand vertical support is detachably fixedly connected with the linear sliding unit; A U-shaped clamp block comprises a C-shaped mouth connecting part and two parallel arranged clamping blocks, the two clamping blocks are connected through the C-shaped mouth connecting part, and the dial gauge stand vertical support is located between the C-shaped mouth connecting part and the two clamping blocks; A threaded rod is simultaneously provided on the two clamping blocks, and the dial gauge stand vertical support is located between the threaded rod and the C-shaped mouth connecting part; A connecting block and a limiting sleeve, the limiting sleeve is sleeved on the connecting block and abuts against the clamping block, the threaded rod is fixedly connected, and the connecting block and the limiting sleeve are both provided with a horizontal connecting rod mounting hole; A threaded rod connecting block is arranged on the side of the U-shaped clamp block away from the connecting block, and the threaded rod is threadedly connected with the threaded rod connecting block after penetrating through the U-shaped clamp block; A dial gauge stand horizontal connecting rod is simultaneously provided in the horizontal connecting rod mounting holes of the connecting block and the limiting sleeve, and a dial gauge is arranged on the dial gauge stand horizontal connecting rod.

[0011] Further, the dial gauge stand vertical support is fixedly connected with a magnetic attraction connecting block, the material of the sliding block is magnetic material, and the magnetic attraction connecting block is magnetically adsorbed on the sliding block.

[0012] Further, a butterfly knob is arranged on the threaded rod connecting block.

[0013] Further, the welding part limiting unit comprises: A plurality of positioning round rods are fixed on the base, and the plurality of positioning round rods are arranged in parallel; A plurality of pressing rod support plates are fixed on the base, a plurality of threaded holes are formed on the pressing rod support plates, at least one pressing screw is arranged in each threaded hole of the pressing rod support plates, and the end of the pressing screw points to the positioning round bar.

[0014] Further, the end of the pressing screw is a circular arc surface.

[0015] Further, a plurality of positioning round bar mounting holes are formed on the base, the positioning round bar is embedded in the positioning round bar mounting hole, and the plurality of positioning round bar mounting holes are arranged in a straight line on the base and are parallel to the sliding direction of the linear sliding unit.

[0016] Further, a plurality of first bolt holes are formed on the side surface of the base, two second bolt holes are arranged on the pressing rod support plate, the distance between adjacent two first bolt holes is equal to the distance between two second bolt holes, the pressing rod support plate is fixedly connected to the base through the first bolt hole and the second bolt hole, the plurality of first bolt holes are arranged in a straight line, and the number of the first bolt holes is greater than the number of the second bolt holes on all the pressing rod support plates.

[0017] In a second aspect, the present application provides a weld size detection method, comprising the following steps: Place the weld workpiece to be detected on the base, fix the weld workpiece to be detected through the welding part limiting unit, and make the weld of the weld workpiece to be detected face one side of the dial gauge; Adjust the position of the dial gauge through the three-dimensional adjustable connecting part, make the dial gauge tip abut against the non-weld position of the weld workpiece to be detected, drive the dial gauge to move through the linear sliding unit, make the dial gauge tip slide back and forth on the non-weld position of the main body of the weld workpiece to be detected, and finely adjust the position of the dial gauge through the three-dimensional adjustable connecting part to make the variation of the needle tend to zero when moving left and right; After the position of the dial gauge is adjusted, drive the dial gauge to move through the linear sliding unit, move the dial gauge tip to the weld, and read the maximum value of the dial gauge as the weld height of the current detection of the measured weld; Repeat the measurement to detect the different positions of the weld of the weld workpiece, obtain the maximum value of the weld height of each position, and obtain the weld height of the weld of the weld workpiece to be detected.

[0018] Compared with the prior art, the present application has the following beneficial effects: The base provides a stable support platform for the linear sliding unit, the welding component limiting unit and other components, avoids affecting the measurement accuracy due to shaking or displacement, and the like. The linear sliding unit can drive the dial gauge connected therewith to slide in a straight line direction, so that the dial gauge can be moved to different measurement positions of the weld seam as required, thereby measuring the height dimensions of different parts of the weld seam, and improving the flexibility and comprehensiveness of the measurement. The welding component limiting unit is used for limiting and fixing the welding component to be detected. The three-dimensional adjustable connecting part allows the dial gauge to accurately adjust the measurement position and angle of the dial gauge according to the specific position and shape of the weld seam, so that the probe of the dial gauge can accurately contact the surface of the weld seam, adapt to the uneven and irregular characteristics of the surface of the weld seam, and improve the accuracy of the measurement. The present application effectively solves the difficulties in measuring the height dimensions of the weld seam by the traditional measurement tools, in view of the characteristics of the complex structure, various profiles and complex surface conditions of the welding component.

[0019] The present application places the welding workpiece to be detected on the base, fixes the welding workpiece to be detected by the welding component limiting unit, ensures that the position of the workpiece is relatively fixed in the subsequent measurement operation, and makes the weld seam of the welding workpiece to be detected face the side of the dial gauge. The position of the dial gauge is adjusted through the three-dimensional adjustable connecting part, so that the dial gauge tip contacts the non-weld seam position of the welding workpiece to be detected. The dial gauge is moved by the linear sliding unit, so that the dial gauge tip slides back and forth on the non-weld seam position of the main body of the welding workpiece to be detected. The position of the dial gauge is fine adjusted by the three-dimensional adjustable connecting part, so that the variation of the dial needle tends to zero when moving left and right, and a stable measurement reference is found. After the position of the dial gauge is adjusted, the dial gauge is moved by the linear sliding unit, so that the dial gauge tip moves to the weld seam, and the maximum value of the dial gauge is read as the weld seam height of the present detection, thereby obtaining the accurate weld seam height dimension. The different positions of the welding workpiece are repeatedly measured and detected, and the maximum value of the weld seam height of each position is obtained as the weld seam height of the welding workpiece to be detected. By repeatedly measuring the different positions of the weld seam, the height variation of the entire weld seam can be comprehensively understood. The present application effectively reduces the measurement errors caused by various factors, from the stable placement of the workpiece, the accurate adjustment and calibration of the position of the dial gauge, to the comprehensive measurement of different positions of the weld seam. The systematic measurement method can avoid the measurement result deviation caused by single measurement or improper operation, and makes the measurement result more reliable. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a partial view of the three-dimensional adjustable connecting part of the present application; Figure 3 It is a flow chart of the method of the present application.

[0021] Wherein: 100, base; 101, positioning round bar mounting hole; 102, first bolt hole; 200, linear sliding unit; 201, sliding block; 202, linear sliding groove; 300, welding type limiting unit; 301, positioning round bar; 302, pressing rod support plate; 303, pressing screw; 304, threaded hole; 400, three-dimensional adjustable connecting part; 401, dial indicator stand vertical support; 402, dial indicator; 403, U-shaped clamping block; 404, threaded rod; 405, clamping block; 406, C-shaped port connecting part; 407, connecting block; 408, limiting sleeve; 409, dial indicator stand horizontal connecting rod; 410, horizontal connecting rod mounting hole; 411, magnetic connecting block; 412, butterfly knob; 413, threaded rod connecting block. DETAILED DESCRIPTION

[0022] In order to make the personnel in the technical field better understand the present application scheme, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second" and the like in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0024] The present application will be described in further detail below in conjunction with the drawings: Embodiment 1 Reference Figure 1The application discloses a welding seam size detection tool, which comprises a base 100, which is a basic structure of the whole detection tool and provides a stable support platform for a linear sliding unit, a welding part limiting unit and other components, so that the whole detection tool can keep a relatively fixed position during the working process and the measurement accuracy is not affected by shaking or displacement.

[0025] In the preferred embodiment of the application, the linear sliding unit 200 can drive the dial gauge connected thereto to slide in a straight line, so that the dial gauge can be moved to different measurement positions of the welding seam as required, thereby measuring the height size of different parts of the welding seam and improving the flexibility and comprehensiveness of the measurement.

[0026] The linear sliding unit 200 comprises a sliding block 201 and a linear sliding groove 202 formed in the base 100, the sliding block 201 is in sliding connection with the linear sliding groove 202, and the three-dimensional adjustable connecting part 400 is detachably fixedly connected with the sliding block 201.

[0027] In the preferred embodiment of the application, the welding part limiting unit 300 is used for limiting and fixing the welding component to be detected, so that the welding component is prevented from moving or shaking during the measurement process, the welding component is kept in a stable state during the measurement, and thus the accuracy and reliability of the measurement result are ensured.

[0028] In the preferred embodiment of the application, the welding part limiting unit 300 comprises a plurality of positioning round rods 301 fixed on the base 100 and a plurality of pressing rod supporting plates 302 fixed on the base 100. The positioning round rods 301 are arranged in parallel. A plurality of threaded holes 304 are formed in the pressing rod supporting plate 302, at least one pressing screw 303 is arranged in each threaded hole 304, and the end of the pressing screw 303 points to the positioning round rod 301.

[0029] In the preferred embodiment of the application, the end of the pressing screw 303 is a circular arc surface, so that the pressing screw 303 does not scratch the welding workpiece to be detected when pressing the welding workpiece.

[0030] In the preferred embodiment of the application, a plurality of positioning round rod mounting holes 101 are formed in the base 100, the positioning round rods 301 are embedded in the positioning round rod mounting holes 101, and the positioning round rod mounting holes 101 are arranged in a straight line on the base 100 and are parallel to the sliding direction of the linear sliding unit 200.

[0031] The first bolt holes 102 are arranged in a straight line, and the number of the first bolt holes 102 is greater than the number of the second bolt holes on the pressure lever support plates 302.

[0032] In use, the welding workpiece to be detected is arranged between the positioning round bars 301 and the pressure lever support plates 302, the compression screw rod 303 is arranged in the threaded hole 304 of the pressure lever support plate 302 at an appropriate height, and the compression screw rod 303 is tightened to fasten the welding workpiece to be detected.

[0033] Referring to Figs. 1 to 4, Figure 1 and Figure 2 In the preferred embodiment of the present application, the three-dimensional adjustable connecting part 400 allows the dial gauge 402 to move forward and backward in the horizontal direction, move up and down in the vertical direction, and rotate in the horizontal direction, so that the measuring position and angle of the dial gauge can be accurately adjusted according to the specific position and shape of the weld, the probe of the dial gauge can accurately contact the surface of the weld, the uneven and irregular characteristics of the surface of the weld can be adapted, and the accuracy of measurement can be improved.

[0034] The three-dimensional adjustable connecting part 400 comprises a dial gauge stand vertical support 401, a U-shaped clamping block 403, a threaded rod 404, a connecting block 407, a limiting sleeve 408, a dial gauge stand horizontal connecting rod 409, and a threaded rod connecting block 413. The dial gauge stand vertical support 401 is detachably fixedly connected with the linear sliding unit 200. The U-shaped clamping block 403 comprises a C-shaped mouth connecting part 406 and two clamping blocks 405 arranged in parallel, the two clamping blocks 405 are connected through the C-shaped mouth connecting part 406, and the dial gauge stand vertical support 401 is located between the C-shaped mouth connecting part 406 and the two clamping blocks 405. The threaded rod 404 is arranged in the two clamping blocks 405 at the same time, and the dial gauge stand vertical support 401 is located between the threaded rod 404 and the C-shaped mouth connecting part 406. The limiting sleeve 408 is sleeved on the connecting block 407 and abuts against the clamping block 405, the threaded rod 404 is fixedly connected, and the connecting block 407 and the limiting sleeve 408 are both provided with a horizontal connecting rod mounting hole 410. The threaded rod connecting block 413 is arranged on the side of the U-shaped clamping block 403 away from the connecting block 407, and the threaded rod 404 is threadedly connected with the threaded rod connecting block 413 after penetrating through the U-shaped clamping block 403. The dial gauge frame horizontal connecting rod 409 is simultaneously arranged in the horizontal connecting rod mounting hole 410 of the connecting block 407 and the limiting sleeve 408, and the dial gauge frame horizontal connecting rod 409 is provided with the dial gauge 402.

[0035] In the preferred embodiment of the present application, the dial gauge frame vertical support 401 is fixedly connected with a magnetic connecting block 411, and the material of the sliding block 201 is a magnetic material, and the magnetic connecting block 411 is magnetically adsorbed on the sliding block 201.

[0036] In the preferred embodiment of the present application, the threaded rod connecting block 413 is provided with a butterfly knob 412.

[0037] In use, after the threaded rod 404 is loosened, the U-shaped clamping block 403 can slide and rotate up and down along the dial gauge frame vertical support 401, so as to realize the vertical up-and-down movement and horizontal rotation adjustment of the dial gauge 402. Meanwhile, after the connecting block 407 is disconnected with the threaded rod 404, the connecting block 407 and the limiting sleeve 408 can be relatively displaced, and the dial gauge frame horizontal connecting rod 409 can slide in the horizontal connecting rod mounting hole 410, so as to realize the horizontal forward-and-backward movement adjustment of the dial gauge 402. After the position of the dial gauge 402 is adjusted, the threaded rod 404 is connected with the connecting block 407 through the U-shaped clamping block 403, and during the screwing of the threaded rod 404 and the connecting block 407, the U-shaped clamping block 403 is extruded, and the U-shaped clamping block 403 is fixed on the dial gauge frame vertical support 401. Meanwhile, the connecting block 407 is pulled by the threaded rod 404, and the connecting block 407 is dislocated with the limiting sleeve 408, so that the horizontal connecting rod mounting hole 410 of the connecting block 407 and the limiting sleeve 408 is dislocated, and then the dial gauge frame horizontal connecting rod 409 is fixedly connected with the dial gauge frame vertical support 401, so as to realize the position locking of the dial gauge 402.

[0038] The present application effectively solves the difficulties of traditional measuring tools in measuring the height size of a weld, by the cooperative work of various components, in view of the characteristics of complex structure, various profiles and complex surface conditions of a weld assembly.

[0039] Referring to Figure 3 Based on the above-mentioned weld size detection tool, the present application further discloses a weld size detection method, comprising the following steps: S1, place the welding workpiece to be detected on the base 100, fix the welding workpiece to be detected by the welding part limiting unit 300, ensure that the workpiece is relatively fixed in position during subsequent measurement operations, and will not affect the accuracy of the measurement results due to random movement. Make the weld of the welding workpiece to be detected face the side of the dial gauge 402; S2, adjust the position of the dial gauge 402 through the three-dimensional adjustable connecting part 400, so that the dial gauge 402 tip touches the non-welded position of the welding workpiece to be detected. The dial gauge 402 tip slides back and forth on the non-welded position of the main body of the welding workpiece to be detected by the linear sliding unit 200. The position of the dial gauge 402 is fine adjusted by the three-dimensional adjustable connecting part 400 to make the variation of the needle when moving left and right tend to zero, and then a stable measurement reference is found. Eliminate the initial error of the dial gauge itself and the measurement system, and ensure that the subsequent measurement of the weld height is based on an accurate and stable reference.

[0040] S3, after the position adjustment of the dial gauge 402 is completed, move the dial gauge 402 by the linear sliding unit 200, so that the dial gauge 402 tip moves to the weld, and the maximum value of the dial gauge 402 is read as the weld height of this detection of the weld. Because the weld surface is uneven, the maximum value can accurately capture the highest point of the weld, so as to obtain the accurate weld height size.

[0041] S4, repeat the measurement to detect the weld of the welding workpiece to measure the different positions of the weld, and obtain the maximum value of the weld height of each position. The weld height of the welding workpiece to be detected is obtained. By repeatedly measuring different positions of the weld, the height change of the entire weld can be fully understood. By obtaining the maximum value of each position and comprehensively analyzing, the quality condition of the weld can be more accurately evaluated, and the local height abnormal problem of the weld can be found, which provides more reliable basis for judging whether the welding process is qualified.

[0042] The present application effectively reduces the measurement error caused by various factors from the stable placement of the workpiece, the accurate adjustment and calibration of the dial gauge position, to the comprehensive measurement of different positions of the weld. Especially by calibrating the measurement reference at the non-welded position, the accuracy of the subsequent weld height measurement is ensured, the real height size of the weld can be accurately obtained, and the demand for accurately measuring the weld height size under some extremely strict special standards of product quality is met. Through the systematic measurement method, the measurement result deviation caused by single measurement or improper operation can be avoided, so that the measurement result is more reliable.

[0043] Example 2: See Figure 1 and Figure 2The application discloses a weld size detection device, which comprises a base 100, a plurality of positioning round bar mounting holes 101 are formed in the middle of the base 100, the positioning round bar mounting holes 101 are used for inserting positioning round bars 301, a linear sliding groove 202 is formed in parallel with the positioning round bar mounting holes 101 and at a position about 30 mm away from the positioning round bar mounting holes 101, a sliding block 201 can be placed in the linear sliding groove 202, the sliding block 201 can slide back and forth in the linear sliding groove 202, and a plurality of pressure rod supporting plates 302 are fixedly connected to the base 100. The upper surface of the sliding block 201 is used for adsorbing a magnetic three-dimensional adjustable connecting part 400, when the sliding block 201 slides in the linear sliding groove 202, a dial gauge 402 installed on the three-dimensional adjustable connecting part 400 can continuously measure the different positions of a weld by the dial gauge 402 table tip, and the real measurement value of the uneven weld can be obtained. Similarly, the dial gauge 402 can be moved to a non-weld position of a weld workpiece to be detected, the main body of the welded workpiece is measured after the reference is determined, and the accurate welding deformation amount can be obtained. The measurement method is more intuitive and accurate compared with the touch method of a plug gauge, the judgment of an inspector does not need to rely on experience, and the influence of human subjective factors can be reduced to the minimum.

[0044] The use method of the detection tool is as follows: The weld size detection tool and the weld workpiece to be detected are placed at a proper height, that is, the weld workpiece to be detected is located at the middle height of the positioning round bars 301 in the weld size detection tool, then the positioning round bars 301 and the pressure rod supporting plates 302 are adjusted to position and press the weld workpiece to be detected, at this time, it should be noted that the positions of the round bars and the supporting plates should avoid the measured weld.

[0045] The pressing screw 303 is inserted into the threaded hole 304 of the pressure rod supporting plate 302 at a proper height, the pressing screw 303 is used for pressing and fixing the weld workpiece to be detected, the dial gauge frame vertical support is connected to the sliding block 201, the sliding block 201 is pushed to make the dial gauge 402 table tip slide back and forth on the non-weld position of the main body of the weld workpiece to be detected, the position is finely adjusted to make the change of the needle when moving left and right tend to be zero, then the base is magnetically adsorbed on the sliding block, at this time, the dial gauge 402 is pushed to the side of the supporting plate main body, and the display value at this time is recorded.

[0046] When the measurement is started, the table tip is moved to the weld, at this time, the maximum value read from the dial gauge is the highest point of the weld in this measurement. The height of the dial gauge 402 table tip can also be adjusted, the above steps are repeated, the size of the weld at different heights is measured, and the maximum value after comparison is the final conclusion of the height of the weld.

[0047] The detection method innovates the traditional weld measurement method, changes the subjective judgment method into a quantifiable method, and is more accurate for the conclusion of the weld. Meanwhile, the detection efficiency of the weld is improved.

[0048] The design idea of the measuring tool is to determine the relative reference between the welded parts, accurately measure the welding deformation and the size of the weld, so as to ensure that the weld can be accurately measured and evaluated.

[0049] And the structure of the present application is simple, and the operability is strong, and at the same time achieves the purpose of improving the measurement accuracy and improving the detection efficiency.

[0050] The measuring tool adopts two round bars as the positioning reference of the support plate in the selection of the positioning mode. When one side of the support plate is close to the round bar, point contact is formed with the round bar, and the reference is prepared for the subsequent measurement. In addition, the positioning device and the pressing device also need to be designed to be adjustable, so as to adapt to support plates of different sizes.

[0051] The present application realizes the viewpoint of specific quantitative evaluation of the weld for the first time. According to the requirements in the current welding acceptance standard, the specific numerical value of the weld can be detected, and the detection efficiency of this type of weld is improved by simple operation. It has certain popularization value.

[0052] The above content is only to illustrate the technical idea of the present application, and cannot limit the protection scope of the present application. Any modification made according to the technical idea of the present application on the basis of the technical scheme falls within the protection scope of the present application.

Claims

1. A weld size inspection tool, characterized in that, Includes a base (100), on which a linear sliding unit (200) and a welding component limiting unit (300) are arranged, and the linear sliding unit (200) is connected to a dial indicator (402) through a three-dimensional adjustable connecting part (400).

2. The weld size inspection tool according to claim 1, characterized in that, The linear sliding unit (200) includes: A linear sliding groove (202) is formed on the base (100); The slider (201) is slidably connected to the linear sliding groove (202), and the three-dimensional adjustable connecting part (400) is detachably and fixedly connected to the slider (201).

3. The weld size inspection tool according to claim 1, characterized in that, The three-dimensional adjustable connector (400) includes: The vertical support (401) of the dial gauge stand is detachably and fixedly connected to the linear sliding unit (200); The U-shaped clamp (403) includes a C-shaped connector (406) and two parallel clamping blocks (405). The two clamping blocks (405) are connected through the C-shaped connector (406). The vertical support (401) of the dial indicator stand is located between the C-shaped connector (406) and the two clamping blocks (405). The threaded rod (404) is simultaneously mounted on the two clamping blocks (405), and the vertical support (401) of the dial indicator stand is located between the threaded rod (404) and the C-shaped opening connection (406); A connecting block (407) and a limiting sleeve (408) are provided. The limiting sleeve (408) is fitted on the connecting block (407) and abuts against the clamping block (405). The threaded rod (404) is fixedly connected. Both the connecting block (407) and the limiting sleeve (408) are provided with horizontal connecting rod mounting holes (410). A threaded rod connecting block (413) is arranged on the side of the U-shaped clamp (403) away from the connecting block (407), and the threaded rod (404) passes through the U-shaped clamp (403) and is threadedly connected to the threaded rod connecting block (413); The dial indicator holder horizontal connecting rod (409) is simultaneously installed in the horizontal connecting rod mounting hole (410) of the connecting block (407) and the limiting sleeve (408), and the dial indicator (402) is provided on the dial indicator holder horizontal connecting rod (409).

4. The weld size inspection tool according to claim 3, characterized in that, The vertical support (401) of the dial indicator stand is fixedly connected to a magnetic connecting block (411). The slider (201) is made of magnetic material, and the magnetic connecting block (411) is magnetically attracted to the slider (201).

5. A weld size inspection tool according to claim 3, characterized in that, The threaded rod connecting block (413) is provided with a butterfly knob (412).

6. The weld size inspection tool according to claim 1, characterized in that, The welding component limiting unit (300) includes: A plurality of positioning rods (301) are fixed on the base (100), and the plurality of positioning rods (301) are arranged in parallel. Several pressure rod support plates (302) are fixed on the base (100). Several threaded holes (304) are provided on the pressure rod support plates (302). At least one threaded hole (304) on each pressure rod support plate (302) is provided with a clamping screw (303). The end of the clamping screw (303) points to the positioning round bar (301).

7. A weld size inspection tool according to claim 6, characterized in that, The end of the clamping screw (303) is an arc surface.

8. A weld size inspection tool according to claim 6, characterized in that, The base (100) has a plurality of positioning rod mounting holes (101), and the positioning rods (301) are embedded in the positioning rod mounting holes (101). The plurality of positioning rod mounting holes (101) are arranged in a straight line on the base (100) and are parallel to the sliding direction of the linear sliding unit (200).

9. A weld size inspection tool according to claim 6, characterized in that, The base (100) has a plurality of first bolt holes (102) on its side, and the pressure rod support plate (302) has two second bolt holes. The distance between two adjacent first bolt holes (102) is equal to the distance between two second bolt holes. The pressure rod support plate (302) is fixedly connected to the base (100) by bolts, the first bolt holes (102) and the second bolt holes. The plurality of first bolt holes (102) are arranged in a straight line, and the number of first bolt holes (102) is greater than the number of second bolt holes on all the pressure rod support plates (302).

10. A method for inspecting weld dimensions, using a weld dimension inspection tool as described in any one of claims 1 to 9, characterized in that, Includes the following steps: The workpiece to be tested is placed on the base (100), and the workpiece to be tested is fixed by the welding part limiting unit (300) so that the weld of the workpiece to be tested faces the dial indicator (402). The position of the dial indicator (402) is adjusted by the three-dimensional adjustable connecting part (400) so that the tip of the dial indicator (402) touches the non-weld seam position of the workpiece to be inspected. The dial indicator (402) is moved by the linear sliding unit (200) so that the tip of the dial indicator (402) slides back and forth on the non-weld seam position of the main body of the workpiece to be inspected. The position of the dial indicator (402) is finely adjusted by the three-dimensional adjustable connecting part (400) so that the change of the needle when moving left and right approaches zero. After the dial indicator (402) is adjusted, the dial indicator (402) is moved by the linear sliding unit (200) so that the tip of the dial indicator (402) moves to the weld and the maximum value of the dial indicator (402) is read as the weld height of this inspection. Repeated measurements are taken at different locations of the weld seam on the welded workpiece to obtain the maximum weld seam height at each location, which is then used as the weld seam height of the workpiece to be inspected.

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