Flange detection device and detection method

Abstract

The present invention belongs to the field of detection technology, and in particular relates to a flange detection device and a detection method thereof; one flange detection device comprises: a lifting plate, which is lifted and arranged in a detection platform; a plurality of detection parts, which are vertically arranged on the lifting plate, and one detection part matches a fixing hole of the flange; the spacing between two adjacent detection parts is consistent with the hole spacing of a qualified flange; the interior of the detection platform is hollow, and a supporting plate is horizontally arranged in the middle, and the detection part passes through the supporting plate; a plurality of limit plates are slidingly arranged on the inner side wall of the detection platform, one limit plate corresponds to one detection part, and is linked with the lifting plate; wherein, when the lifting plate moves upward, each limit plate slides radially inward synchronously to limit the axial movement of the flange; the lifting plate drives each detection part to be inserted into the corresponding fixing hole, and the detection part moves axially along the inner wall of the fixing hole to detect whether the aperture of the fixing hole and the hole spacing between adjacent fixing holes are qualified.

Description

Technical Field

[0001] The present invention belongs to the field of detection technology, and specifically relates to a measuring device characterized by mechanical technology, and in particular to a flange detection device and a detection method thereof. Background Art

[0002] As the core component of pipeline connection, the flange's fixing hole accuracy (hole diameter ±0.05mm, hole spacing ±0.1mm) directly affects the sealing performance. The current industry testing faces multiple bottlenecks:

[0003] 1. Manual inspection has low efficiency and high error rate. When using traditional vernier calipers / feeler gauges for inspection, the speed is slow and is greatly affected by manual experience, resulting in a high error rate.

[0004] 2. CCD vision systems have inherent flaws. CCD vision inspection systems have blind spots, and mounting holes require lubrication during drilling. Lubricant residue on the inner walls of the mounting holes increases the CCD vision inspection system's false positive rate and reduces the accuracy of mounting hole inspection. After inspection, to prevent rust during flange storage, the inner walls of the mounting holes often require lubrication. Existing techniques separate inspection and lubrication processes, reducing efficiency.

[0005] Therefore, how to improve the detection accuracy of the aperture and hole spacing of the flange fixing holes is a technical problem that needs to be solved urgently in this field.

[0006] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of related technology. Summary of the Invention

[0007] The embodiments of the present disclosure at least provide a flange detection device and a detection method thereof.

[0008] In a first aspect, an embodiment of the present disclosure provides a flange detection device, comprising:

[0009] The testing table is hollow inside and has a supporting plate horizontally arranged in the middle;

[0010] A lifting plate is arranged in the testing platform and is located below the supporting plate;

[0011] A plurality of detection members are vertically arranged on the lifting plate and pass through the supporting plate;

[0012] The outer diameter of the test piece is consistent with the diameter of the fixing hole of the qualified flange, and the distance between two adjacent test pieces is consistent with the hole distance of the qualified flange;

[0013] The inner side wall of the detection platform is slidably provided with a plurality of limit plates, one limit plate corresponds to one detection part, and is linked with the lifting plate;

[0014] Among them, after the flange is placed on the supporting plate, the lifting plate moves upward, and each limit plate slides radially inward synchronously to limit the axial movement of the flange;

[0015] The lifting plate drives each detection member to be inserted into the corresponding fixing hole;

[0016] If all the test pieces can be inserted into the fixing holes simultaneously, the hole spacing is qualified;

[0017] If the test piece can move axially along each fixing hole without any obstacles, the hole diameter is qualified;

[0018] The detection part includes:

[0019] A detection cylinder, which is lifted and lowered to pass through the supporting plate and is hollow inside;

[0020] A driving column, which is arranged in the detection cylinder for lifting, and the lower end of which is fixed on the lifting plate;

[0021] The upper limit ring is set at the upper end of the detection cylinder, and its outer diameter is consistent with the inner diameter of the fixing hole of the qualified flange;

[0022] The lifting plate drives the driving column to move upward, thereby driving the detection cylinder to move upward synchronously;

[0023] If the diameter of the fixing hole is smaller than the qualified value, the upper limit ring cannot move upward along the inner wall of the fixing hole.

[0024] In an optional embodiment, the axial height of the detection cylinder is greater than the thickness of the flange;

[0025] The lifting plate drives the driving column to move upward, and the driving column moves upward relative to the detection cylinder until it abuts against the upper limit ring;

[0026] Each of the driving columns synchronously drives each of the upper limit rings to move axially along the inner wall of the corresponding fixing hole to detect whether the diameter and the hole spacing of the fixing hole are qualified.

[0027] In an optional embodiment, a positioning plate is provided at the upper end of the driving column, and the outer diameter of the positioning plate is consistent with the inner diameter of the detection cylinder;

[0028] When the driving column moves upward until the positioning plate abuts against the upper limit ring, the positioning plate pushes the detection cylinder to move upward synchronously, so that the upper limit ring moves upward along the axial direction of the fixing hole.

[0029] In an optional embodiment, a boss is provided at the upper end of the positioning plate, the outer diameter of the boss is consistent with the inner diameter of the upper limit ring, and the axial thickness of the boss is greater than the thickness of the upper limit ring;

[0030] The bottom wall of the limit plate is provided with oil-filled cotton, and the oil-filled cotton is located above the boss;

[0031] When the detection cylinder moves upward to the protruding flange, the boss squeezes the oil filling cotton and deforms it, so that the grease flows along the boss surface to the surface of the upper limit ring;

[0032] When the detection cylinder moves downward, the upper limit ring slides downward along the inner wall of the fixing hole to apply grease to the inner wall of the fixing hole.

[0033] In an optional embodiment, the lifting plate is conical, and its outer diameter gradually decreases from top to bottom.

[0034] In an optional embodiment, a linkage plate is slidably provided on the inner wall of the detection platform, the linkage plate extends radially along the detection platform and is connected to the limit plate through a connecting rod;

[0035] The linkage plate is located below the lifting plate;

[0036] When the lifting plate moves downward, the linkage plate is squeezed to slide outward, and the limiting plate slides outward synchronously.

[0037] In an optional embodiment, the limiting plate is provided with an oil delivery hole along its length, the oil inlet of the oil delivery hole is provided on the surface of the limiting plate, and the oil injection cotton is connected to the oil delivery hole;

[0038] An oil storage cavity is provided in the testing platform, and the oil outlet of the oil storage cavity matches the oil inlet of the oil delivery hole;

[0039] Among them, after the limit plate is retracted into the test bench, the grease in the oil storage cavity flows to the oil filling cotton through the oil delivery hole.

[0040] In an optional embodiment, the detection member further includes a lower limiting ring, which is fixed to the lower end of the detection cylinder, and the outer diameter of the lower limiting ring is larger than the outer diameter of the detection cylinder.

[0041] In an optional embodiment, the vertical distance between the bottom wall of the limiting plate and the supporting plate is not greater than the thickness of the flange;

[0042] When the flange is located horizontally on the surface of the supporting plate, each limiting plate slides radially inward until the bottom wall abuts against the surface of the flange.

[0043] In a second aspect, an embodiment of the present disclosure further provides a detection method for a flange detection device, the detection method comprising:

[0044] When the lifting plate moves downward, each limit plate slides radially outward synchronously until the flange is located on the supporting plate;

[0045] The lifting plate drives each detection member to be inserted into the corresponding fixing hole, and the detection member moves axially along the fixing hole to detect whether the fixing hole diameter and the distance between adjacent fixing holes are qualified;

[0046] The detection part moves upwards until it abuts against the limit plate, squeezing the oiling cotton on the bottom wall of the limit plate. When the detection part moves downwards, grease is applied to the inner wall of the fixing hole.

[0047] The beneficial effect of the present invention is that the present invention provides a flange detection device and a detection method thereof, through the detection parts whose outer diameter is consistent with the aperture of the qualified flange fixing hole and the spacing is consistent with the hole spacing of the qualified flange, each detection part is synchronously inserted into the corresponding fixing hole for mechanical detection, and a single action realizes the detection of the aperture and the hole spacing, thereby improving the detection accuracy.

[0048] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0049] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited herein and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in related technologies, the following briefly introduces the drawings required for use in the specific embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0051] Figure 1 A three-dimensional diagram of a flange detection device provided in an embodiment of the present disclosure;

[0052] Figure 2 A three-dimensional diagram of a testing platform and a testing component provided in an embodiment of the present disclosure;

[0053] Figure 3 A sectional perspective view of a testing platform and a testing component provided in an embodiment of the present disclosure;

[0054] Figure 4 A schematic diagram showing a state where the detection member provided in an embodiment of the present disclosure is not inserted into the fixing hole;

[0055] Figure 5This is a schematic diagram of the state in which the detection member provided in an embodiment of the present disclosure is inserted into the fixing hole and abuts against the oil-filled cotton.

[0056] In the picture:

[0057] 1. Conveyor belt;

[0058] 2. Test bench; 20. Support plate; 21. Limit plate; 22. Oiling cotton; 23. Linkage plate; 24. Connecting rod; 25. Oil delivery hole; 26. Oil storage chamber; 27. Accommodation chamber;

[0059] 3. Lifting plate;

[0060] 4. Detection part; 41. Detection cylinder; 42. Driving column; 43. Upper limit ring; 44. Positioning plate; 45. Boss; 46. Lower limit ring;

[0061] 5. Flange; 50. Fixing hole. DETAILED DESCRIPTION

[0062] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0063] In this document, when it is mentioned that a first component is located on a second component, this may mean that the first component may be directly formed on the second component, or that a third component may be interposed between the first component and the second component. In addition, in the drawings, the thickness of components may be exaggerated or reduced in order to effectively describe technical content.

[0064] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, for example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0065] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limiting. As used herein, the singular articles "a", "an" and "the" may also be intended to include plural forms, unless otherwise clearly indicated herein. The terms "comprise", "include" and "have" are inclusive and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the particular order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0066] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Instead, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0067] Research has found that in related technologies, flanges are core components for pipe connections, and the accuracy of their fixing holes (aperture ±0.05mm, hole spacing ±0.1mm) directly affects the sealing performance. Currently, the industry faces multiple bottlenecks in testing:

[0068] 1. Manual inspection has low efficiency and high error rate. When using traditional vernier calipers / feeler gauges for inspection, the speed is slow and is greatly affected by manual experience, resulting in a high error rate.

[0069] 2. CCD vision systems have inherent flaws. CCD vision inspection systems have blind spots, and mounting holes often require lubrication during drilling. Lubricant residue on the inner walls of the mounting holes increases the CCD vision inspection system's false positive rate and reduces the accuracy of mounting hole inspection. After inspection, to prevent rust during flange storage, the inner walls of the mounting holes often need to be lubricated. Existing technologies perform these inspection and lubrication processes separately, reducing efficiency.

[0070] Therefore, how to improve the detection accuracy of the aperture and hole spacing of the flange fixing holes is a technical problem that needs to be solved urgently in this field.

[0071] The defects in the above solutions and the causes of their occurrence are the results obtained by the inventors after practice and careful research. Therefore, the process of discovering the above problems and the solutions proposed by the present disclosure in this article should be the contributions made by the inventors to the present disclosure during the disclosure process.

[0072] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0073] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0074] like Figures 1 to 5 As shown, at least one embodiment provides a flange detection device, including:

[0075] A conveyor belt 1 is located on one side of the inspection platform 2 and is used to transport a flange 5. In this embodiment, the flange is provided with a plurality of fixing holes 50 along its axial direction. A lifting plate 3 is arranged to be raised and lowered within the inspection platform 2; the lifting plate 3 is adapted to drive the inspection member 4 to move up and down. A lifting drive is provided at the bottom of the inspection platform 2, and the lifting plate 3 is fixed to the movable end of the lifting drive, which is adapted to drive the lifting plate 3 to move up and down. Several detection parts 4 are vertically arranged on the lifting plate 3, and one detection part 4 matches a fixing hole 50 of the flange 5, and the distance between two adjacent detection parts 4 is consistent with the hole distance of the qualified flange 5; the interior of the detection platform 2 is hollow, and a supporting plate 20 is horizontally arranged in the middle; the detection part 4 passes through the supporting plate 20; a limit plate 21 is slidingly provided on the inner side wall of the detection platform 2, which is located above the supporting plate 20 and is linked to the lifting plate 3; wherein, after the flange 5 is located on the supporting plate 20, the lifting plate 3 moves upward, and each limit plate 21 slides radially inward synchronously to limit the axial movement of the flange 5; the lifting plate 3 drives each detection part 4 to be inserted into the corresponding fixing hole 50. If all detection parts 4 can be inserted into the fixing hole 50 synchronously, the hole spacing is qualified; if the detection part 4 moves axially along each fixing hole 50 without obstacle, the aperture is qualified.

[0076] In this embodiment, the detection member 4 detects whether the diameter of the fixing hole 50 is smaller than the qualified value. During the installation process of the flange 5, if the diameter of the fixing hole 50 is smaller than the qualified value, the bolts matching the fixing hole 50 cannot be inserted into the fixing hole 50, affecting the normal use of the flange 5. If the diameter of the fixing hole 50 is slightly larger than the qualified value, the use of the flange 5 is not affected during the actual installation process. Furthermore, if the hole spacing between adjacent fixing holes 50 is inconsistent with the qualified value, the detection members 4 cannot be simultaneously inserted into the fixing holes 50, and the flange 5 is judged to be unqualified.

[0077] By using the detection parts 4 whose outer diameter is consistent with the aperture of the fixing hole 50 of the qualified flange 5 and whose spacing is consistent with the hole spacing of the qualified flange 5, each detection part 4 is synchronously inserted into the corresponding fixing hole 50 for mechanical detection. A single action realizes the detection of the aperture and the hole spacing, thereby improving the accuracy of the detection.

[0078] Reference Attachment Figure 3 The detection member 4 includes: a detection cylinder 41, which is lifted and lowered to pass through the support plate 20 and is hollow inside; the detection cylinder 41 is suitable for being inserted into the fixing hole 50, and the axial height of the detection cylinder 41 is greater than the thickness of the flange 5. A driving column 42 is set in the detection cylinder 41 for lifting, and the lower end is fixed on the lifting plate 3; an upper limit ring 43 is set at the upper end of the detection cylinder 41, and the outer diameter is greater than the outer diameter of the detection cylinder 41; the outer diameter of the upper limit ring 43 is consistent with the inner diameter of the fixing hole 50 of the qualified flange 5; wherein, the lifting plate 3 drives the driving column 42 to move upward, and the driving column 42 moves upward relative to the detection cylinder 41 until it abuts against the upper limit ring 43, and the driving column 42 drives the detection cylinder 41 to move upward synchronously; the upper limit ring 43 moves axially along the fixing hole 50 to detect whether the aperture is qualified.

[0079] If the diameter of the fixing hole 50 is smaller than the qualified value, the upper limit ring 43 cannot move upward along the inner wall of the fixing hole 50. The outer diameter of the upper limit ring 43 is consistent with the inner diameter of the fixing hole 50. By detecting whether the upper limit ring 43 can move upward along the fixing hole 50, it is detected whether the diameter of the fixing hole 50 of the flange 5 reaches the qualified value. At the same time, if there is a protrusion on the inner wall of the fixing hole 50, the upper limit ring 43 will be limited by the protrusion when moving upward along the fixing hole 50. At this time, the upper limit ring 43 cannot move upward along the fixing hole 50. Through the setting of the upper limit ring 43, it is also possible to detect whether there is a protrusion on the inner wall of the fixing hole 50. When the upper limit ring 43 moves downward relative to the flange 5, the grease on the oiling cotton 22 flows into the surface of the upper limit ring 43 through the boss 45, and grease is applied to the inner wall of the fixing hole 50 when the upper limit ring 43 moves downward relative to the flange 5.

[0080] Reference Attachment Figure 3 and Figure 4In order to push the upper limit ring 43 to move upward, a positioning plate 44 is provided at the upper end of the driving column 42, and the outer diameter of the positioning plate 44 is consistent with the inner diameter of the detection cylinder 41; wherein, when the driving column 42 moves upward until the positioning plate 44 abuts against the upper limit ring 43, the driving column 42 is suitable for pushing the detection cylinder 41 to move upward synchronously, so that the upper limit ring 43 moves axially upward along the fixing hole 50. Furthermore, a boss 45 is provided at the upper end of the positioning plate 44. The outer diameter of the boss 45 is consistent with the inner diameter of the upper limit ring 43, and the axial thickness of the boss 45 is greater than the thickness of the upper limit ring 43. The bottom wall of the limit plate 21 is provided with an oiling cotton 22, which is located above the boss 45. When the detection cylinder 41 moves upward to protrude from the flange 5, the boss 45 squeezes the oiling cotton 22 and deforms it, causing the grease to flow along the surface of the boss 45 to the surface of the upper limit ring 43. When the detection cylinder 41 moves downward, the upper limit ring 43 slides downward along the inner wall of the fixing hole 50 to apply grease to the inner wall of the fixing hole 50. The lifting plate 3 is conical, and its outer diameter gradually decreases from top to bottom.

[0081] Continue to refer to the attached Figure 3 A linkage plate 23 is slidingly provided on the inner wall of the detection platform 2. The linkage plate 23 extends radially along the detection platform 2 and is connected to the limit plate 21 through a connecting rod 24. When the linkage plate 23 slides radially, it drives the limit plate 21 to slide radially synchronously. Preferably, there are a plurality of accommodating cavities 27 in the detection platform 2. The connecting rod 24 is slidingly provided in the accommodating cavities 27. A spring is provided in the accommodating cavities 27. One end of the spring abuts against the connecting rod 24. The spring is suitable for pushing the connecting rod 24 so that the linkage plate 23 and the limit plate 21 move horizontally synchronously toward the axial direction of the detection platform 2. The linkage plate 23 is located below the lifting plate 3. When the lifting plate 3 moves downward, the lifting plate 3 squeezes the linkage plate 23 to slide outward. The linkage plate 23 drives the limit plate 21 to slide outward synchronously through the connecting rod 24. The limit plate 21 is provided with an oil delivery hole 25 along its length, the oil inlet of the oil delivery hole 25 being located on the surface of the limit plate 21; the oiling sponge 22 is connected to the oil delivery hole 25; an oil storage chamber 26 is provided within the testing platform 2, the oil outlet of the oil storage chamber 26 being aligned with the oil inlet of the oil delivery hole 25; when the limit plate 21 is retracted into the testing platform 2, the oil outlet of the oil storage chamber 26 is connected to the oil inlet of the oil delivery hole 25, and the grease in the oil storage chamber 26 flows through the oil delivery hole 25 to the oiling sponge 22. When the limit plate 21 slides radially inward against the limiting flange 5, the limit plate 21 is adapted to seal the oil outlet of the oil storage chamber 26.

[0082] Refer again to the attached Figure 3To prevent the detection cylinder 41 from separating from the support plate 20 when moving upward, the detection member 4 further includes a lower limit ring 46 fixed to the lower end of the detection cylinder 41. The outer diameter of the lower limit ring 46 is larger than the outer diameter of the detection cylinder 41. The vertical distance between the bottom wall of the limit plate 21 and the support plate 20 is no greater than the thickness of the flange 5. When the flange 5 is horizontally positioned on the surface of the support plate 20, each limit plate 21 slides radially inward until the bottom wall abuts the surface of the flange 5.

[0083] Furthermore, in order to improve the stability of the lifting and lowering movement of the detection cylinder 41, a through hole is opened on the support plate 20, and the diameter of the through hole is consistent with the outer diameter of the detection cylinder 41. When the detection cylinder 41 is lifted and lowered, the outer wall of the detection cylinder 41 is always aligned with the inner wall of the through hole to ensure that the detection cylinder 41 always ensures vertical lifting and lowering movement.

[0084] Here’s how it works:

[0085] Reference Attachment Figure 4 The flange 5 is placed horizontally on the supporting plate 20, and the fixing hole 50 is matched with the detection part 4. At this time, the surface of the flange 5 is in contact with the bottom wall of the limit plate 21. The limit plate 21 can prevent the flange 5 from moving upward relative to the supporting plate 20 when the fixing hole 50 is detected. At this time, the surface of the upper limit ring 43 is coplanar with the surface of the supporting plate 20.

[0086] Reference Attachment Figure 5 The driving column 42 drives the positioning plate 44 to move upward until the positioning plate 44 abuts against the bottom wall of the upper limit ring 43. The positioning plate 44 drives the detection cylinder 41 to move upward synchronously. The upper limit ring 43 moves upward along the inner wall of the fixing hole 50 to detect whether the inner diameter of the fixing hole 50 is qualified. If the inner diameter of the fixing hole 50 is qualified, the upper limit ring 43 moves upward until the boss 45 abuts against the oiling cotton 22. The grease in the oiling cotton 22 flows to the upper limit ring 43 through the boss 45.

[0087] After the detection is completed, the driving column 42 moves downward, and the detection cylinder 41 moves downward along the inner wall of the fixing hole 50 . During the downward movement, the upper limit ring 43 applies grease to the inner wall of the fixing hole 50 .

[0088] At least one embodiment provides a method for detecting a flange detection device, the method comprising:

[0089] When the lifting plate 3 moves downward, each limit plate 21 slides radially outward synchronously until the flange 5 is located on the supporting plate 20;

[0090] The lifting plate 3 drives each detection member 4 to be inserted into the corresponding fixing hole 50, and the detection member 4 moves axially along the fixing hole 50 to detect whether the hole diameter of the fixing hole 50 and the hole distance between adjacent fixing holes 50 are qualified;

[0091] The detection member 4 moves upward until it contacts the limiting plate 21 , squeezing the oiling cotton 22 on the bottom wall of the limiting plate 21 . When the detection member 4 moves downward, grease is applied to the inner wall of the fixing hole 50 .

[0092] In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0093] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used herein unless expressly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0094] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A flange detection device, characterized in that: include: The testing platform (2) is hollow inside and has a supporting plate (20) arranged horizontally in the middle; A lifting plate (3) is arranged in a lifting manner in the detection platform (2) and is located below the supporting plate (20); A plurality of detection members (4) are vertically arranged on the lifting plate (3) and pass through the supporting plate (20); The outer diameter of the inspection piece (4) is consistent with the diameter of the fixing hole (50) of the qualified flange (5), and the distance between two adjacent inspection pieces (4) is consistent with the hole distance of the qualified flange (5); The inner wall of the detection platform (2) is slidably provided with a plurality of limit plates (21), one limit plate (21) corresponds to one detection member (4), and is linked to the lifting plate (3); After the flange (5) is placed on the supporting plate (20), the lifting plate (3) moves upward, and each limiting plate (21) slides radially inward synchronously to limit the axial movement of the flange (5); The lifting plate (3) drives each detection member (4) to be inserted into the corresponding fixing hole (50); If all the test pieces (4) can be inserted into the corresponding fixing holes (50) simultaneously, the hole spacing is qualified; If the detection member (4) moves axially along each fixing hole (50) without any obstacles, the aperture is qualified; The detection element (4) comprises: A detection cylinder (41) which is lifted and lowered to pass through the support plate (20) and is hollow inside; A driving column (42) is arranged to be lifted in the detection cylinder (41), and its lower end is fixed on the lifting plate (3); An upper limit ring (43) is provided at the upper end of the detection cylinder (41) and has an outer diameter consistent with the inner diameter of the fixing hole (50) of the qualified flange (5); The lifting plate (3) drives the driving column (42) to move upward, thereby driving the detection cylinder (41) to move upward synchronously; If the diameter of the fixing hole (50) is smaller than the qualified value, the upper limit ring (43) cannot move upward along the inner wall of the fixing hole (50); A positioning plate (44) is provided at the upper end of the driving column (42), and the outer diameter of the positioning plate (44) is consistent with the inner diameter of the detection cylinder (41); When the driving column (42) moves upward until the positioning plate (44) abuts against the upper limit ring (43), the positioning plate (44) pushes the detection cylinder (41) to move upward synchronously, so that the upper limit ring (43) moves axially upward along the fixing hole (50); A boss (45) is provided at the upper end of the positioning plate (44), the outer diameter of the boss (45) is consistent with the inner diameter of the upper limit ring (43), and the axial thickness of the boss (45) is greater than the thickness of the upper limit ring (43); The bottom wall of the limiting plate (21) is provided with oil-injected cotton (22), and the oil-injected cotton (22) is located above the boss (45); When the detection cylinder (41) moves upward to the protruding flange (5), the boss (45) squeezes the oiling cotton (22) to deform, so that the grease flows along the surface of the boss (45) to the surface of the upper limit ring (43); When the detection cylinder (41) moves downward, the upper limit ring (43) slides downward along the inner wall of the fixing hole (50) to apply grease to the inner wall of the fixing hole (50); The lifting plate (3) is conical, and its outer diameter gradually decreases from top to bottom; A linkage plate (23) is slidably provided on the inner wall of the detection platform (2), wherein the linkage plate (23) extends radially along the detection platform (2) and is connected to the limit plate (21) via a connecting rod (24); The linkage plate (23) is located below the lifting plate (3); When the lifting plate (3) moves downward, it squeezes the linkage plate (23) to slide outward, and the limiting plate (21) slides outward synchronously; The limiting plate (21) is provided with an oil delivery hole (25) along the length direction, the oil inlet of the oil delivery hole (25) is arranged on the surface of the limiting plate (21), and the oil injection cotton (22) is connected to the oil delivery hole (25); An oil storage cavity (26) is provided in the testing platform (2), and the oil outlet of the oil storage cavity (26) matches the oil inlet of the oil delivery hole (25); After the limiting plate (21) is retracted into the testing platform (2), the grease in the oil storage cavity (26) flows to the oil filling cotton (22) through the oil delivery hole (25).

2. The flange detection device according to claim 1, characterized in that: The axial height of the detection cylinder (41) is greater than the thickness of the flange (5); The lifting plate (3) drives the driving column (42) to move upward, and the driving column (42) moves upward relative to the detection cylinder (41), and when it contacts the upper limit ring (43), it pushes the detection cylinder (41) to move upward; Each of the driving columns (42) synchronously drives each of the upper limit rings (43) to move axially along the inner wall of the corresponding fixing hole (50) to detect whether the hole diameter and the hole spacing of the fixing hole (50) are qualified.

3. The flange detection device according to claim 1, characterized in that: The detection member (4) further comprises a lower limiting ring (46), the lower limiting ring (46) being fixed to the lower end of the detection cylinder (41), and the outer diameter of the lower limiting ring (46) being greater than the outer diameter of the detection cylinder (41).

4. The flange detection device according to claim 1, characterized in that: The vertical distance between the bottom wall of the limiting plate (21) and the supporting plate (20) is not greater than the thickness of the flange (5); When the flange (5) is horizontally located on the surface of the supporting plate (20), each limiting plate (21) slides radially inward until the bottom wall abuts against the surface of the flange (5).

5. A method for detecting a flange detection device, characterized in that: Using the flange detection device according to any one of claims 1 to 4, the detection method includes: When the lifting plate (3) moves downward, each limit plate (21) slides radially outward synchronously until the flange (5) is located on the supporting plate (20); The lifting plate (3) drives each detection member (4) to be inserted into the corresponding fixing hole (50), and the detection member (4) moves axially along the fixing hole (50) to detect whether the diameter of the fixing hole (50) and the hole distance between adjacent fixing holes (50) are qualified; The detection member (4) moves upward until it contacts the limit plate (21), squeezing the oiling cotton (22) on the bottom wall of the limit plate (21). When the detection member (4) moves downward, grease is applied to the inner wall of the fixing hole (50).

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