A rapid detection tool and method
By designing a rapid inspection tool that uses a base plate and positioning tube to measure the gaps of irregularly shaped parts, the problem of rapid inspection of straight and corrugated strips after resistance welding was solved, improving the installation efficiency and accuracy of nuclear power heat exchanger tube bundles.
Patent Information
- Application Number
- CN202210769707.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-30
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2042-06-30
AI Technical Summary
How can we provide a rapid testing tool to measure the straight and corrugated strips after resistance welding, so as to improve the installation efficiency and accuracy of nuclear power plant heat exchanger tube bundles?
A rapid inspection tool was designed, comprising a base plate, a positioning tube, and a connecting device. The qualification of the irregular part is determined by measuring the gap between the irregular part and the positioning tube. It is applicable to the inspection of irregular parts that have not been resisted welded and those that have been resisted welded.
It enables rapid and accurate inspection of multiple irregularly shaped components of nuclear power plant heat exchanger tube bundles, improving installation efficiency and accuracy. The inspection tool has a simple structure, low cost, and strong applicability.
Smart Images

Figure CN114963926B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of nuclear power equipment testing technology, and in particular to a rapid testing tool and method for detecting waveform strips and straight strips after resistance welding. Background Technology
[0002] Nuclear power plant heat exchangers typically comprise heat exchange tube bundles, which are composed of multiple stacked layers of heat exchange tubes. Generally, the central axes of the individual heat exchange tubes are parallel to each other, and heat exchange tubes within the same layer and between adjacent layers require connectors for fixation. For example... Figure 1 , Figure 2 As shown, the connector has an irregular structure, comprising a corrugated strip and a straight strip. The corrugated strip and the straight strip are joined together by resistance welding (resistance welding is present at all contact points between the corrugated strip and the straight strip), and then the integrated corrugated strip and the straight strip are fixed to the heat exchange tubes in the same layer. The corrugated strip is used to fix the heat exchange tubes in the same layer together, and the straight strip is used to fix the heat exchange tubes in adjacent layers together. In some special cases, along the length of the heat exchange tubes, multiple straight strips and corrugated strips are also provided on each layer of heat exchange tubes. Figure 1 Only one corrugated strip and one straight strip are shown on each heat exchanger layer in the diagram.
[0003] Due to the large number of heat exchanger tubes and the high precision requirements for assembly, manufacturing errors in the previous layer of heat exchanger tubes will prevent the installation of the next layer. Therefore, precise control is required for the installation of each layer of heat exchanger tubes. In particular, it is necessary to precisely control and measure the machining accuracy of the straight and corrugated strips to ensure that they meet the design requirements, so as to ensure that multiple heat exchanger tubes can be assembled into a heat exchanger bundle.
[0004] How to provide a rapid testing tool to measure the straight and wave-shaped strips after resistance welding is an urgent problem to be solved. Summary of the Invention
[0005] The purpose of this invention is to provide a rapid testing tool and method that can quickly test multiple irregularly shaped components of nuclear power plant heat exchanger tube bundles, greatly improving the installation efficiency and accuracy of nuclear power plant heat exchanger tube bundles.
[0006] To achieve the above objectives, the present invention provides a rapid testing tool. A nuclear power plant heat exchanger tube bundle comprises stacked multilayer nuclear power plant heat exchanger tubes, and multiple irregularly shaped components are respectively fixedly connected and disposed between the multilayer nuclear power plant heat exchanger tubes. The irregularly shaped components include straight strips and corrugated strips. The rapid testing tool is used to test the irregularly shaped components. The rapid testing tool comprises:
[0007] The base plate has a flat upper surface.
[0008] A plurality of positioning tubes are fixedly installed on the upper surface of the base plate, and the central axis of the positioning tube is perpendicular to the upper surface of the base plate, and the outer diameter of the positioning tube matches the outer diameter of the nuclear power heat exchange tube; the plurality of positioning tubes correspond to the plurality of nuclear power heat exchange tubes of the nuclear power heat exchange tube bundle respectively; the plurality of positioning tubes are arranged according to the plurality of nuclear power heat exchange tubes;
[0009] A plurality of connecting devices are used for fixedly installing the plurality of positioning tubes on the base plate respectively.
[0010] Optionally, the plurality of positioning tubes are arranged according to the plurality of nuclear power heat exchange tubes, and the plurality of positioning tubes are divided into a plurality of rows, and the plurality of rows of positioning tubes correspond to a plurality of layers of nuclear power heat exchange tubes respectively; the projection position of the central axis of each positioning tube on the upper surface of the base plate corresponds to the projection position of the corresponding nuclear power heat exchange tube on the cross section perpendicular to the central axis of the nuclear power heat exchange tube.
[0011] Optionally, the positioning tube has a hollow structure with two open ends; the base plate is provided with a plurality of mounting holes for mounting the plurality of positioning tubes respectively; the connecting device comprises a bolt and a nut; the bolt comprises a head and a screw rod, and the outer diameter of the screw rod matches the inner diameter of the positioning tube; the head is located below the base plate, the first end of the screw rod is fixedly connected to the head, and the second end of the screw rod sequentially penetrates the corresponding mounting hole, the inside of the corresponding positioning tube and extends out of the top end of the corresponding positioning tube; the nut is sleeved on the second end of the screw rod, and the positioning tube is tightly fixed on the base plate by cooperation of the screw rod and the nut.
[0012] Optionally, the connecting device further comprises an annular gasket; the annular gasket is sleeved on the screw rod and located between the head and the lower surface of the base plate.
[0013] Optionally, the lower surface of the base plate is fixedly provided with a plurality of height-adjustable supporting seats.
[0014] Optionally, the base plate, the positioning tube and the connecting device are all made of stainless steel.
[0015] The application also provides a rapid detection method for special-shaped parts, which is realized by using the detection tool as described in the application, and adjacent two layers of nuclear power heat exchange tubes are fixedly connected by one special-shaped part, and a plurality of layers of nuclear power heat exchange tubes are fixedly connected by a plurality of special-shaped parts to form a nuclear power heat exchange tube bundle; the special-shaped part comprises a straight plate belt and a wave-shaped belt; the rapid detection method comprises the following steps:
[0016] S1, placing the straight plate belt between the corresponding two rows of positioning tubes on the base plate; the straight plate belt has opposite first and second surfaces, and the first and second surfaces are respectively directed to the corresponding two rows of positioning tubes;
[0017] S2, measuring a first gap between the straight strip and the corresponding positioning tube in a first direction, the first direction being a direction through the center axis of the positioning tube and perpendicular to the first surface; in the corresponding two rows of positioning tubes, if there is at least one positioning tube whose first gap with the straight strip does not fall within a set first gap range, it is determined that the straight strip is unqualified; otherwise, it is determined that the straight strip is qualified and enters S3;
[0018] S3, placing the waveform strip on the bottom plate between the corresponding straight strip and the row of positioning tubes corresponding to the second surface of the straight strip; along the length direction of the waveform strip, the waveform strip comprises a plurality of arc segments connected in sequence, and the plurality of arc segments respectively partially surround a plurality of positioning tubes corresponding to the second surface of the straight strip;
[0019] S4, measuring a second gap between the arc segment and the surrounded positioning tube; if there is an arc segment whose second gap with the surrounded positioning tube does not fall within a set second gap range, it is determined that the waveform strip is unqualified; otherwise, it is determined that the waveform strip is qualified.
[0020] Optionally, the rapid detection method of the special-shaped part further comprises the following steps:
[0021] S5, welding the waveform strip on the second surface of the straight strip;
[0022] S6, placing the integrated and fixedly connected straight strip and waveform strip on the bottom plate between the corresponding two rows of positioning tubes;
[0023] S7, measuring the first gap between the straight strip and the corresponding positioning tube in the first direction, and measuring the second gap between the arc segment of the waveform strip and the surrounded positioning tube; if there is at least one positioning tube whose first gap with the straight strip does not fall within the first gap range, or there is at least one arc segment whose second gap with the surrounded positioning tube does not fall within the second gap range, it is determined that the welded straight strip and waveform strip are unqualified; otherwise, it is determined that the welded straight strip and waveform strip are qualified.
[0024] Optionally, the welding method of the waveform strip and the straight strip is resistance welding.
[0025] Optionally, before placing the straight strip in step S1, the method further comprises: adjusting the support seat so that the upper surface of the bottom plate is a horizontal plane.
[0026] Compared with the prior art, the rapid detection tool and method of the present application have the following beneficial effects:
[0027] 1) The rapid detection tool of the present application has simple structure, low manufacturing cost and convenient disassembly and assembly;
[0028] 2) The rapid detection tool and method of the present application is suitable for detecting the wave-shaped belt and straight plate belt without resistance welding, and can also check the post-welding size of the wave-shaped belt and straight plate belt after resistance welding, and has high detection efficiency and fast detection speed;
[0029] 3) The rapid detection tool of the present application has strong universality, and can detect multiple special-shaped parts of the nuclear heat exchange tube bundle through only one rapid detection tool, and the detection result is accurate and meets the actual use working condition of the special-shaped part. BRIEF DESCRIPTION OF DRAWINGS
[0030] In order to more clearly illustrate the technical scheme of the present application, the drawings required to be used in the description will be briefly introduced as follows. Obviously, the drawings in the following description are one embodiment of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings:
[0031] Figure 1 Schematic diagram of connecting straight plate belt and wave-shaped belt to nuclear heat exchange tube;
[0032] Figure 2 Schematic diagram of connecting multiple layers of nuclear heat exchange tubes through multiple special-shaped parts;
[0033] Figure 3 Top view of the embodiment of the present application, in which multiple positioning tubes are installed on the bottom plate;
[0034] Figure 4 Side view of the embodiment of the present application, in which a single positioning tube is installed on the bottom plate;
[0035] Figure 5 Partial top view of the embodiment of the present application, in which the straight plate belt is placed between the two rows of positioning tubes;
[0036] Figure 6 Partial top view of the embodiment of the present application, in which the straight plate belt and the wave-shaped belt are placed between the two rows of positioning tubes;
[0037] In the figure: 11, nuclear heat exchange tube; 12, straight plate belt; 121, first surface; 122, second surface; 13, wave-shaped belt; 14, welding point;
[0038] 21, bottom plate; 22, annular gasket; 23, positioning tube; 241, head; 242, screw rod; 25, nut; 26, mounting hole. DETAILED DESCRIPTION
[0039] With reference to the drawings and the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.
[0040] It should be understood that the term "comprising" as used in the specification and the appended claims indicates the presence of the recited features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.
[0041] It should also be understood that the terms used in the present application specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the present application specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.
[0042] It should be further understood that the term "and / or" as used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations thereof.
[0043] As used in the present application specification and the appended claims, the term "if" can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting" depending on the context. Similarly, the phrase "if it is determined" or "if [the described condition or event] is detected" can be interpreted as meaning "upon determining" or "in response to determining" or "upon detecting [the described condition or event]" or "in response to detecting [the described condition or event]" depending on the context.
[0044] In addition, in the description of the present application, the terms "first", "second", "third" and the like are only used to distinguish description and cannot be understood as indicating or implying relative importance.
[0045] As shown in Figure 1 , Figure 2 The nuclear power heat exchange bundle comprises a plurality of nuclear power heat exchange pipes 11 stacked in multiple layers. A plurality of special-shaped members are fixedly connected between the multiple layers of nuclear power heat exchange pipes 11, and one special-shaped member is fixedly connected between two adjacent layers of nuclear power heat exchange pipes 11. As shown in Figure 1 , Figure 2 In the embodiment, the multiple layers of nuclear power heat exchange pipes 11 are stacked on one arc surface. In other embodiments, the multiple layers of nuclear power heat exchange pipes 11 can also be stacked on one plane. Figure 2This is a cross-sectional view of the multilayer nuclear power heat exchange tube 11 connected by multiple irregularly shaped components (this cross-section is perpendicular to the central axis of the nuclear power heat exchange tube 11 and is referred to as the first cross-section). Figure 2 The five-layer nuclear power heat exchange tube 11 is shown.
[0046] like Figure 1 , Figure 2 As shown, the irregularly shaped part includes a straight strip 12 and a corrugated strip 13. Typically, the straight strip 12 and the corrugated strip 13 are resistance welded (the solder joint 14 between the straight strip 12 and the corrugated strip 13 is shown in the image). Figure 2 As shown in the diagram, it is fixedly installed (e.g., by resistance welding) on the corresponding layer of nuclear power heat exchange tube 11, and then another layer of nuclear power heat exchange tube 11 is installed. Figure 2 As shown, the straight strip 12 has a first surface 121 and a second surface 122 facing each other. The first surface 121 and the second surface 122 are arc-shaped surfaces and face the corresponding two layers of nuclear power heat exchange tubes 11. A corrugated strip 13 is fixedly connected to the second surface 122 of the straight strip 12. Along the length of the corrugated strip 13, the corrugated strip 13 includes a plurality of arc-shaped segments connected in sequence. The plurality of arc-shaped segments partially surround the plurality of nuclear power heat exchange tubes 11 corresponding to the second surface 122 of the straight strip 12.
[0047] Because of the large number of nuclear power heat exchange tubes 11 and the high precision requirements for assembly, manufacturing errors in the previous layer of nuclear power heat exchange tubes 11 will prevent the installation of the next layer. Therefore, precise control is required for the installation of each layer of nuclear power heat exchange tubes 11. In particular, it is necessary to precisely control and measure the machining accuracy of the straight strip 12 and the corrugated strip 13 to ensure that they meet the design requirements, so as to ensure that multiple heat exchange tubes can be assembled into a heat exchange tube bundle.
[0048] This embodiment provides a rapid inspection tool for inspecting irregularly shaped parts. The rapid inspection tool includes: a base plate 21, multiple positioning tubes 23, and multiple connecting devices.
[0049] In this embodiment, both the upper and lower surfaces of the base plate 21 are planar. For example... Figure 3 As shown, the base plate 21 has multiple mounting holes 26 connecting the upper and lower surfaces of the base plate, which are used to install the multiple positioning tubes 23. The multiple mounting holes 26 correspond to multiple nuclear power heat exchange tubes 11, and the positions of the multiple mounting holes 26 are arranged according to the multiple nuclear power heat exchange tubes 11. That is to say, the projection position of the central axis of each mounting hole 26 on the upper surface of the base plate corresponds to the projection position of the corresponding nuclear power heat exchange tube 11 on the first cross section.
[0050] Multiple positioning tubes 23 are divided into multiple rows, and the multiple rows of positioning tubes 23 correspond to the multi-layer nuclear power heat exchange tubes 11 respectively. Figure 3The diagram shows five rows of positioning tubes 23, each row having an arc-shaped surface. The central axis of the positioning tube 23 is perpendicular to the upper surface of the base plate 21, and the positioning tube 23 is coaxial with the corresponding mounting hole 26. The outer diameter of the positioning tube 23 matches the outer diameter of the nuclear power heat exchange tube 11.
[0051] Multiple positioning tubes 23 are respectively fixedly installed on the upper surface of the base plate 21 through the multiple connecting devices. Figure 4 The middle image shows a side view of a positioning tube 23 mounted on a base plate 21. Figure 4 As shown, the positioning tube 23 has a hollow structure with openings at both ends. The connecting device includes a bolt, a nut 25, and an annular washer 22. The bolt includes a head 241 and a screw 242, the outer diameter of which matches the inner diameter of the positioning tube 23. The head 241 is located below the base plate 21. The first end of the screw 242 is fixedly connected to the head 241, and the second end of the screw 242 passes through the corresponding mounting hole 26, the interior of the corresponding positioning tube 23, and extends from the top of the corresponding positioning tube 23. The annular washer 22 is sleeved on the screw 242 and located between the head 241 and the lower surface of the base plate 21. The nut 25 is sleeved on the second end of the screw. Through the cooperation of the screw 242 and the nut 25, the positioning tube 23 is pressed and fixed onto the base plate 21.
[0052] In this embodiment, the base plate 21, the positioning tube 23, and the connecting device are all made of stainless steel, which can prevent the nuclear power heat exchange tube 11 from being contaminated by ferrite.
[0053] In another embodiment, a plurality of height-adjustable support seats (not shown in the figure) are fixedly provided on the lower surface of the base plate 21, and the upper surface of the base plate 21 is made horizontal by adjusting the support seats.
[0054] This invention also provides a rapid inspection method for irregularly shaped parts, implemented using the inspection tool described in this invention. The rapid inspection method includes the following steps:
[0055] S1. Adjust the support base so that the upper surface of the base plate is horizontal; such as Figure 5 As shown, the straight strip 12 is placed on the base plate 21 and positioned between the corresponding two rows of positioning tubes 23; the straight strip 12 has a first surface 121 and a second surface 122 facing each other, with the first surface 121 and the second surface 122 facing the corresponding two rows of positioning tubes 23 respectively;
[0056] S2, Measure the first direction (e.g.) Figure 5S1, as shown in FIG. 1, placing the straight strip 12 on the bottom plate 21 and between two corresponding rows of positioning tubes 23; the straight strip 12 contains a plurality of first surfaces 121, and the first surfaces 121 are parallel to each other; the first direction is the direction passing through the center axis of the positioning tubes 23 and perpendicular to the first surfaces 121; measuring the first gap between the straight strip 12 and the corresponding positioning tubes 23 in the first direction; if there exists at least one positioning tube 23 whose first gap with the straight strip 12 does not fall within the set first gap range, judging the straight strip 12 unqualified; otherwise, judging the straight strip 12 qualified and entering S2;
[0057] S2, as shown in FIG. 2, placing the wave-shaped strip 13 on the bottom plate 21 and between the corresponding straight strip 12 and the row of positioning tubes 23 corresponding to the second surface 122 of the straight strip 12; along the length direction of the wave-shaped strip 13, the wave-shaped strip 13 contains a plurality of arc-shaped segments connected in sequence, and the arc-shaped segments respectively partially surround a plurality of positioning tubes 23 corresponding to the second surface 122 of the straight strip 12; measuring the second gap between the arc-shaped segments and the surrounded positioning tubes 23; if there exists at least one arc-shaped segment whose second gap with the surrounded positioning tube 23 does not fall within the set second gap range, judging the wave-shaped strip 13 unqualified; otherwise, judging the wave-shaped strip 13 qualified and entering S3. Figure 6
[0058] S3, as shown in FIG. 3, placing the wave-shaped strip 13 on the bottom plate 21 and between the corresponding straight strip 12 and the row of positioning tubes 23 corresponding to the second surface 122 of the straight strip 12; along the length direction of the wave-shaped strip 13, the wave-shaped strip 13 contains a plurality of arc-shaped segments connected in sequence, and the arc-shaped segments respectively partially surround a plurality of positioning tubes 23 corresponding to the second surface 122 of the straight strip 12; measuring the second gap between the arc-shaped segments and the surrounded positioning tubes 23; if there exists at least one arc-shaped segment whose second gap with the surrounded positioning tube 23 does not fall within the set second gap range, judging the wave-shaped strip 13 unqualified; otherwise, judging the wave-shaped strip 13 qualified and entering S4.
[0059] In the embodiment, the first gap and the second gap are measured by a caliper.
[0060] The above steps are used for measuring the straight strip 12 and the wave-shaped strip 13 which have not been resistance-welded.
[0061] The present application also provides a rapid detection method of special-shaped parts, which is used for rapidly detecting the straight strip 12 and the wave-shaped strip 13 which have been resistance-welded, and contains the following steps:
[0062] S5, resistance-welding the wave-shaped strip 13 on the second surface 122 of the straight strip 12;
[0063] S6, placing the integrated and fixedly connected straight strip 12 and wave-shaped strip 13 on the bottom plate 21 and between the corresponding two rows of positioning tubes 23;
[0064] S7, measuring the first gap between the straight strip 12 and the corresponding positioning tubes 23 in the first direction, and measuring the second gap between the arc-shaped segments of the wave-shaped strip 13 and the surrounded positioning tubes 23; if there exists at least one positioning tube 23 whose first gap with the straight strip 12 does not fall within the first gap range, or there exists at least one arc-shaped segment whose second gap with the surrounded positioning tube 23 does not fall within the second gap range, judging the resistance-welded straight strip 12 and wave-shaped strip 13 unqualified; otherwise, judging the resistance-welded straight strip 12 and wave-shaped strip 13 qualified.
[0065] The quick detection tool of the application has simple structure, low manufacturing cost and convenient disassembly and assembly. The quick detection tool and method of the application are suitable for detecting the waveform belt 13 and straight plate belt 12 which have not been resistance welded, and can also check the post-weld size of the waveform belt 13 and straight plate belt 12 after resistance welding, and have high detection efficiency and fast detection speed. The quick detection tool of the application has strong versatility, and can detect multiple special-shaped parts of the nuclear power heat exchange tube bundle through only one quick detection tool, and the detection result is accurate and meets the actual use working condition of the special-shaped part.
[0066] It should be understood that the size of the serial number of each step in the above embodiment does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the application.
[0067] The above is only a specific implementation of the application, but the protection scope of the application is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the application, and these modifications or replacements should be covered within the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope of the claims.
Claims
1. A rapid inspection method for irregularly shaped components, implemented using a rapid inspection tool, wherein an irregularly shaped component is used to fixally connect two adjacent layers of nuclear power heat exchange tubes, and multiple irregularly shaped components are used to fixally connect multiple layers of nuclear power heat exchange tubes to form a nuclear power heat exchange tube bundle, wherein the irregularly shaped component includes straight strips and corrugated strips; the rapid inspection tool is used to inspect the irregularly shaped component, characterized in that, The rapid detection tool includes: The base plate has a flat upper surface; multiple height-adjustable support seats are fixedly installed on the lower surface of the base plate. Multiple positioning tubes are fixedly installed on the upper surface of the base plate, and the central axis of the positioning tubes is perpendicular to the upper surface of the base plate. The outer diameter of the positioning tubes matches the outer diameter of the nuclear power heat exchange tubes. The multiple positioning tubes correspond to multiple nuclear power heat exchange tubes of the nuclear power heat exchange tube bundle. The multiple positioning tubes are arranged according to the multiple nuclear power heat exchange tubes. Multiple connecting devices are used to fix multiple positioning tubes onto the base plate; The plurality of positioning tubes are arranged according to the plurality of nuclear power heat exchange tubes, including: the plurality of positioning tubes are divided into multiple rows, and the multiple rows of positioning tubes correspond to multiple layers of nuclear power heat exchange tubes; the projection position of the central axis of each positioning tube on the upper surface of the base plate corresponds to the projection position of the corresponding nuclear power heat exchange tube on the cross section perpendicular to the central axis of the nuclear power heat exchange tube. The rapid detection method includes the following steps: S1. Place the straight strip on the base plate and position it between the corresponding two rows of positioning tubes; the straight strip has a first surface and a second surface facing each other, with the first surface and the second surface facing the corresponding two rows of positioning tubes respectively. S2. Measure the first gap between the straight strip and the corresponding positioning tube in the first direction, wherein the first direction is the direction that passes through the central axis of the positioning tube and is perpendicular to the first surface; If at least one of the positioning tubes in the two rows of positioning tubes does not fall within the set first gap range of the straight strip, the straight strip is judged to be unqualified; otherwise, the straight strip is judged to be qualified and proceeds to S3. S3. Place the waveform strip on the base plate and between the corresponding straight strip and a row of positioning tubes corresponding to the second surface of the straight strip; along the length direction of the waveform strip, the waveform strip includes a plurality of arc segments connected in sequence, and the plurality of arc segments partially surround the plurality of positioning tubes corresponding to the second surface of the straight strip. S4. Measure the second gap between the arc segment and the surrounding positioning tube; if the second gap between the arc segment and the surrounding positioning tube does not fall within the set second gap range, the waveform strip is judged to be unqualified; otherwise, the waveform strip is judged to be qualified. Step S1, before placing the straight strip, also includes: adjusting the support base so that the upper surface of the base plate is horizontal.
2. The rapid detection method for irregularly shaped parts as described in claim 1, characterized in that, The positioning tube has a hollow structure with openings at both ends; the base plate has multiple mounting holes for mounting multiple positioning tubes; the connecting device includes a bolt and a nut; the bolt includes a head and a screw, the outer diameter of the screw matching the inner diameter of the positioning tube; the head is located below the base plate, the first end of the screw is fixedly connected to the head, and the second end of the screw passes through the corresponding mounting hole, the interior of the corresponding positioning tube, and extends from the top of the corresponding positioning tube; the nut is fitted onto the second end of the screw, and the positioning tube is pressed and fixed to the base plate by the cooperation of the screw and the nut.
3. The rapid detection method for irregularly shaped parts as described in claim 2, characterized in that, The connecting device also includes an annular gasket; the annular gasket is sleeved on the screw and located between the head and the lower surface of the base plate.
4. The rapid detection method for irregularly shaped parts as described in claim 1, characterized in that, The base plate, positioning tube, and connecting device are all made of stainless steel.
5. The rapid detection method for irregularly shaped parts as described in claim 1, characterized in that, It also includes the following steps: S5. Weld the corrugated strip to the second surface of the straight strip; S6. Place the integrated fixed connection straight strip and corrugated strip on the base plate and position them between the corresponding two rows of positioning tubes; S7. Measure the first gap between the straight strip and the corresponding positioning tube in the first direction, and measure the second gap between the arc segment of the corrugated strip and the positioning tube it surrounds; if at least one positioning tube and the straight strip's first gap does not fall within the first gap range, or at least one arc segment and the positioning tube's second gap does not fall within the second gap range, the welded straight strip and corrugated strip are deemed unqualified; otherwise, the welded straight strip and corrugated strip are deemed qualified.
6. The rapid detection method for irregularly shaped parts as described in claim 5, characterized in that, The wave strip and the straight strip are welded by resistance welding.
Citation Information
Patent Citations
Heat exchanger and assembly method thereof
CN111486740A
Stirring blade detection device of stirring kettle
CN210220934U
Rapid detection tool
CN217637067U