Dye Penetrant Inspection Apparatus and Dye Penetrant Inspection Method

Abstract

To provide an automated dye penetrant inspection device and dye penetrant inspection method which have stable inspection quality.SOLUTION: A dye penetrant inspection device 1 includes: a table 10 for fixing an inspection object component 2; a first application unit 30 for applying a dyeing penetrant to the inspection object component 2; a wipe unit 40 for wiping the penetrant off the inspection object component 2; a second application unit 50 for applying developer to the inspection object component 2; and a control unit 60 for moving the first application unit 30, the wipe unit 40, and the second application unit 50 in sequence.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a dye penetrant inspection apparatus and a dye penetrant inspection method.

Background Art

[0002] Penetrant inspection for inspecting defects on the surface of a component to be inspected is known. In penetrant inspection, a penetrant is applied to the surface of the component to be inspected, and the penetrant is allowed to penetrate into the defects. Next, the penetrant other than the penetrant remaining in the defects (excess penetrant) is removed. Then, by detecting the penetrant in the defects, the presence or absence of defects on the surface of the component to be inspected is inspected.

[0003] Patent Document 1 discloses fluorescent penetrant inspection using a penetrant having fluorescence that reacts to ultraviolet light. In fluorescent penetrant inspection, when detecting the penetrant in the defects, ultraviolet light is irradiated to detect the penetrant having fluorescence.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the above fluorescent penetrant inspection, due to the structure of the apparatus, there is a limitation on the size of the component to be inspected, and it is not suitable for inspecting large components to be inspected. On the other hand, as another penetrant inspection in which the limitation on the size of the component to be inspected is relaxed, dye penetrant inspection using a penetrant having dyeability is known. In dye penetrant inspection, a penetrant is applied to the surface of the component to be inspected, and the penetrant is allowed to penetrate into the defects. Next, a developer is applied to the surface of the component to be inspected, and the penetrant in the defects is sucked out by the developer. When there are defects, an indication pattern is formed by the penetrant.

[0006] In dye penetrant inspection, it is necessary to leave the penetrant in the defect and wipe off the other penetrant (excess penetrant). Generally, the operation of wiping off the excess penetrant is performed manually using a cloth. However, it is difficult to control the wiping force, and skilled skills are required. If an inexperienced person performs the operation, the inspection quality will vary. In addition, since a waiting time is required until the penetrant penetrates into the defect and a waiting time is required until the developer sucks out the penetrant, skilled personnel are constrained during the waiting time, resulting in an inefficient situation.

[0007] An object of the present invention is to provide an automated dye penetrant inspection apparatus and a dye penetrant inspection method with stable inspection quality.

Means for Solving the Problems

[0008] A first aspect of the present invention provides a dye penetrant inspection apparatus including a stage for fixing a component to be inspected, a first application unit for applying a penetrant for dyeing to the component to be inspected, a wiping unit for wiping off the penetrant from the component to be inspected, a second application unit for applying a developer to the component to be inspected, and a control device for operating the first application unit, the wiping unit, and the second application unit in order.

[0009] According to this configuration, since the control device controls the operations of the first application unit, the wiping unit, and the second application unit, the dye penetrant inspection can be automatically executed. Therefore, the dye penetrant inspection can be efficiently realized without requiring manual labor. In addition, since the wiping amount of the penetrant can be stabilized compared to the case where manual labor is required, the inspection quality can be stabilized. Note that the above dye penetrant inspection does not necessarily need to be completely automated, and some processes may be performed manually. For example, the detection process of the penetrant may be visually judged.

[0010] The wiping unit includes a rough wiping unit that relatively roughly wipes the penetrant and a finishing wiping unit that relatively finely wipes the penetrant, and the control device may execute the wiping of the finishing wiping unit after executing the wiping of the rough wiping unit.

[0011] According to this configuration, since the residue wiped by the rough wiping unit can be wiped by the finishing wiping unit, the residue of the excess penetrant can be suppressed. In particular, when automating the dye penetrant inspection, it is difficult to set the wiping intensity of the penetrant. However, as described above, by wiping in two stages of rough wiping and finishing wiping, the wiping intensity can be set finely. In this way, the automation is facilitated.

[0012] The rough wiping unit may include a water-repellent member that wipes the penetrant.

[0013] According to this configuration, since the water-repellent member can be used continuously a plurality of times without being replaced for each inspection, the inspection efficiency can be improved. Here, the water-repellent member can be, for example, an elastic member used for an automobile wiper.

[0014] The finishing wiping unit may include a water-absorbent member that wipes the penetrant.

[0015] According to this configuration, the excess penetrant can be more reliably wiped by the water-absorbent member. Here, the water-absorbent member can be, for example, a cloth called a so-called waistcloth.

[0016] The control device may wipe the part to be inspected in a plurality of passes, and control the wiping unit so that the penetrant is swept out toward the next pass in the current pass.

[0017] According to this configuration, it is possible to suppress the excess penetrant from flowing to the already wiped part, and to suppress the residue of the excess penetrant. Therefore, false detection of the penetrant can be suppressed, and the inspection accuracy can be improved. Here, "pass" refers to the trajectory of wiping.

[0018] The wiping unit may be controlled so as to wipe off the penetrant also on a surface adjacent to the inspection surface of the component to be inspected.

[0019] According to this configuration, when the developer is applied to the inspection surface, it is possible to suppress the penetrant from oozing out from the surface adjacent to the inspection surface, and thus it is possible to suppress the false detection of the penetrant. Here, the "surface adjacent to the inspection surface" refers to a surface having a ridge line or a valley line as a boundary with the inspection surface. For example, in the case of a rectangular parallelepiped, when the upper surface is the inspection surface, the surfaces adjacent to the inspection surface refer to the four side surfaces excluding the lower surface. When wiping the surface adjacent to the inspection surface, the entire surface may be wiped or a part of the surface may be wiped. When wiping a part of the surface adjacent to the inspection surface, the wiping range may be about several millimeters (for example, about 5 mm) from the boundary.

[0020] A second aspect of the present invention provides a dye penetrant inspection method including, in a dye penetrant inspection apparatus including a stage for fixing a component to be inspected, a first application unit for applying a penetrant for dyeing to the component to be inspected, a wiping unit for wiping off the penetrant from the component to be inspected, and a second application unit for applying a developer to the component to be inspected, automatically operating the first application unit, the wiping unit, and the second application unit in this order.

Effect of the Invention

[0021] According to the present invention, it is possible to provide an automated dye penetrant inspection apparatus and a dye penetrant inspection method with stable inspection quality.

Brief Description of the Drawings

[0022]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

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Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Mode for Carrying Out the Invention

[0023] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0024] FIG. 1 is a plan view of a component 2 under inspection disposed on a stage 10.

[0025] In this embodiment, a dye penetration flaw detection inspection apparatus 1 for inspecting the presence or absence of scratches on the surface of a component 2 under inspection will be described.

[0026] The component 2 under inspection in this embodiment is a bearing ring used for bearings or the like. The component 2 under inspection is an annular metal member having a smooth surface. However, the form of the component 2 under inspection is not particularly limited, and the dye penetration flaw detection inspection apparatus 1 of this embodiment can target any component.

[0027] FIGS. 2 to 5 are schematic first to fourth side views of a dye penetration flaw detection inspection apparatus 1 according to an embodiment of the present invention.

[0028] The dye penetrant inspection apparatus 1 has an articulated arm 20 that can be driven in six axes. The arm 20 is configured such that the tip unit can be replaced. In FIG. 2, the first application unit 30 is attached to the tip of the arm 20, in FIGS. 3 and 4, the wiping unit 40 is attached to the tip of the arm 20, and in FIG. 5, the second application unit 50 is attached to the tip of the arm 20. The first application unit 30, the wiping unit 40, and the second application unit 50 may be automatically replaced or manually replaced.

[0029] The dye penetrant inspection apparatus 1 also has a stage 10, a first application unit 30, a wiping unit 40, a second application unit 50, and a control device 60.

[0030] The stage 10 has a function of fixing the component 2 to be inspected. In the present embodiment, the stage 10 has a flat upper surface 2a, a first fixing clamp 12 that restricts the horizontal movement of the component 2 to be inspected placed on the upper surface 2a, and three second fixing clamps 13. The first fixing clamp 12 has a V-shaped opening toward the center of the stage 10 in a plan view. The three second fixing clamps 13 are arranged so as to sandwich the component 2 to be inspected together with the first fixing clamp 12. The three second fixing clamps 13 have magnetism and can adsorb a predetermined metal.

[0031] The above structure of the stage 10 is an example and is not limited to this structure. Alternatively, the stage 10 may not have the first fixing clamp 12 and the three second fixing clamps 13 and may have magnetism on the upper surface 2a. In this case, the stage 10 may be able to adjust the strength of the magnetism like an electromagnetic chuck.

[0032] Referring to FIG. 2, the first application unit 30 applies a penetrant for dyeing to the component 2 to be inspected. The penetrant is a dyeing solution of an easily detectable color (for example, red). In the present embodiment, the first application unit 30 has a spray can 31 that sprays the penetrant. Alternatively, instead of being replaced after use like the spray can 31, although not shown in detail, a tank for storing the penetrant may be provided, and it may be a dispenser type that sprays the penetrant in the tank. In the case of the dispenser type, in order to prevent the penetrant from sticking inside, the penetrant may be discharged at a predetermined flow rate at predetermined time intervals even during time periods other than the penetrant application operation. Also, a predetermined flow rate may be discharged immediately before applying to the component 2 to be inspected. This is the same for the subsequent dispenser type.

[0033] Referring to FIGS. 3 and 4, the wiping unit 40 wipes the penetrant from the surface of the component 2 to be inspected. In the present embodiment, the wiping unit 40 has a rough wiping unit 41 and a finish wiping unit 42.

[0034] The rough wiping unit 41 shown in FIG. 3 wipes the penetrant relatively roughly. In the present embodiment, the rough wiping unit 41 has a water-repellent member 41a that wipes the penetrant. The water-repellent member 41a is made of a material that is difficult to absorb the penetrant, and can be, for example, an elastic member (resin sheet) used for automobile wipers. In the wiping by the rough wiping unit 41, the penetrant is wiped while applying a pressing force to the surface of the component 2 to be inspected by utilizing the elasticity of the water-repellent member 41a.

[0035] The finish wiping unit 42 wipes off the penetrant relatively finely. In the present embodiment, the finish wiping unit 42 has a water-absorbing member 42a for wiping off the penetrant. The water-absorbing member 42a is made of a material that easily absorbs the penetrant and can be, for example, a cloth called a so-called wipe. Further, the finish wiping unit 42 has an elastic resin member 42b for fixing the water-absorbing member 42a. By the elastic member 42b, even when wiping with the finish wiping unit 42, the penetrant can be wiped off while applying a pressing force to the surface of the component 2 to be inspected, similar to the wiping by the rough wiping unit 41.

[0036] Referring to FIG. 5, the second application unit 50 applies a developer to the component 2 to be inspected. The developer has the property of sucking out the penetrant from the flaw and forming an indication pattern. In the present embodiment, the second application unit 50 has a spray can 51 for spraying the developer. Alternatively, the second application unit 50 may also be of a dispenser type.

[0037] FIG. 6 is a block diagram of the control device 60.

[0038] The control device 60 is composed of hardware such as a CPU (Central Processing Unit), a RAM (Random Access Memory), and a ROM (Read Only Memory), and software installed thereon. The control device 60 has an input unit 61, a storage unit 62, and a control unit 63.

[0039] The input unit 61 is a part that acquires input data for the dye penetrant inspection device 1. The input data may be generated by the input unit 61 or received from outside the input unit 61. The input unit 61 is composed of, for example, a keyboard, a mouse, a touch panel, etc. In the present embodiment, the input unit 61 acquires data such as the shape and size of the component 2 to be inspected and other necessary settings in the dye penetrant inspection.

[0040] The memory unit 62 stores programs that operate in the control unit 63, parameter data necessary for dye penetration flaw detection inspections, and the like.

[0041] The control unit 63 includes, for example, a CPU or an MPU (Micro Processing Unit) that collaborates with software to realize a predetermined function. The control unit 63 reads data and programs stored in the memory unit 62 and performs various arithmetic processes to realize a predetermined function. The program executed by the control unit 63 may be provided from a communication unit that communicates according to a predetermined communication standard, or may be stored in a portable recording medium.

[0042] The control unit 63 performs arithmetic processing and overall control of the apparatus. Functionally, the control unit 63 includes a first application unit control unit 63a, a wiping unit control unit 63b, and a second application unit control unit 63c.

[0043] The first application unit control unit 63a controls the operation of the first application unit 30. The first application unit 30 applies a penetrant to a predetermined range of the component 2 to be inspected under this control. In the present embodiment, the upper surface 2a of the component 2 to be inspected is used as the inspection surface, and the penetrant is applied to at least the entire upper surface 2a.

[0044] FIG. 7 is a perspective view of the component 2 to be inspected with the penetrant applied.

[0045] In FIG. 7, the portion indicated by the oblique lines shows the portion to which the penetrant has adhered. When the penetrant is applied to the entire upper surface 2a of the component 2 to be inspected, the penetrant also adheres partially to the side surface 2b of the component 2 to be inspected.

[0046] The wiping unit control unit 63b controls the operations of the rough wiping unit 41 and the finish wiping unit 42. The wiping unit control unit 63b executes the wiping of the finish wiping unit 42 after executing the wiping of the rough wiping unit 41. The rough wiping unit 41 and the finish wiping unit 42 wipe the penetrant on the surface of the component 2 to be inspected according to the set path by this control. Here, the "path" refers to the locus of wiping.

[0047] FIG. 8 is a plan view of the component 2 to be inspected showing the wiping path.

[0048] The wiping path is set according to the shape of the component 2 to be inspected.

[0049] In this embodiment, since the component 2 to be inspected is annular, a radial path P1 may be set. The radial path P1 is set at equal intervals in the circumferential direction and is set so that adjacent paths overlap. Preferably, the path P1 is set to wipe from the inner side to the outer side in the radial direction. Also, a circumferential path P2 may be set. The circumferential path P2 is set at equal intervals in the radial direction and is set so that adjacent paths overlap. Preferably, the path P2 is set to wipe from the inner side to the outer side in the radial direction.

[0050] Alternatively, a vertical path P3 or a horizontal path P4 of the component 2 to be inspected may be set.

[0051] FIG. 9 is an enlarged view of a partial region IX of FIG. 8.

[0052] In FIG. 8, the water-repellent member 41a of the rough wiping unit 41 is shown together with a plurality of paths P31 to P33, P41 to P44. In any path, the rough wiping unit 41 is controlled to sweep the penetrant toward the next path.

[0053] Specifically, when wiping in the order of paths P31, P32, and P33, the water-repellent member 41a is disposed inclined with respect to path P31 so as to sweep out the penetrant from path P31 toward path P32. Similarly, the water-repellent member 41a is disposed inclined with respect to path P32 so as to sweep out the penetrant from path P32 toward path P33.

[0054] Also, when wiping in the order of paths P41, P42, P43, and P44, the water-repellent member 41a is disposed inclined with respect to path P41 so as to sweep out the penetrant from path P41 toward path P42. Similarly, the water-repellent member 41a is disposed inclined with respect to path P42 so as to sweep out the penetrant from path P42 toward path P43. Similarly, the water-repellent member 41a is disposed inclined with respect to path P43 so as to sweep out the penetrant from path P43 toward path P44.

[0055] In the above, the wiping path has been described by taking the rough wiping unit 41 as an example, but this is also applicable to the finish wiping unit 42. Also, the paths of the rough wiping unit 41 and the finish wiping unit 42 do not have to be the same. For example, in the wiping by the finish wiping unit 42, a single-stroke path or a reciprocating path may be set so as to shorten the tact time.

[0056] FIG. 10 is a perspective view of the inspection target part 2 from which the penetrant has been wiped.

[0057] In the present embodiment, the penetrant is wiped from the entire upper surface (inspection surface) 2a of the inspection target part 2, and the penetrant is also wiped from the upper part of the side surface 2b adjacent to the upper surface 2a. Preferably, when wiping a part of the side surface 2b adjacent to the upper surface (inspection surface) 2a, the wiping range is about several millimeters from the boundary 2c between the upper surface 2a and the side surface 2b. For example, in the illustrated example, it is wiped about 5 mm from the boundary 2c between the upper surface 2a and the side surface 2b (D = 5 mm). Alternatively, the entire side surface 2b may be wiped.

[0058] The second coating unit control unit 63c controls the operation of the second coating unit 50. The second coating unit 50 applies a developer to a predetermined range of the component 2 to be inspected under this control. In the present embodiment, the upper surface 2a of the component 2 to be inspected is used as the inspection surface, and the developer is applied to at least the entire upper surface 2a.

[0059] FIG. 11 is a flowchart of the dye penetration flaw detection inspection method according to the present embodiment.

[0060] The dye penetration flaw detection inspection apparatus 1 operates according to the flowchart shown in FIG. 10.

[0061] When starting the dye penetration flaw detection inspection (step S1), the component 2 to be inspected is fixed to the mounting table 10 (step S2). Then, information such as the shape and dimensions of the component 2 to be inspected is acquired (step S3). The acquisition of information may be, for example, by reading a component code designated for each component 2 to be inspected to acquire information (such as drawing information and dimension information) on a database stored in the storage unit 62. Alternatively, the component 2 to be inspected may be scanned, or information measured by an operator may be input from the input unit 61.

[0062] The component 2 to be inspected is cleaned (step S4). Specifically, a cleaning liquid is sprayed onto the component 2 to be inspected using a coating device to remove an oil film, dust, etc. adhering to the surface. The coating device can be of a spray can type or a dispenser type, etc. After spraying, a cleaning and wiping unit (not shown) is attached to the arm 20 to wipe off the cleaning liquid adhering to the surface of the component 2 to be inspected. Note that the finishing wiping unit 42 may be used as the cleaning and wiping unit.

[0063] Wait for a predetermined time until the surface of the component 2 to be inspected dries (step S5). Alternatively, it may be forcibly dried by air blowing or the like.

[0064] The penetrant is applied to the component 2 to be inspected by the first coating unit 30, and wait for a predetermined time until the penetrant penetrates (step S6).

[0065] The excess penetrant applied to the component 2 to be inspected is wiped off by the rough wiping unit 41 (step S7). At this time, depending on the surface roughness or machining mark state of the component 2 to be inspected, there may be some residue after wiping (to the extent that a pattern remains along the wiping pass). Also, in the wiping by the rough wiping unit 41, the penetrant adhering to the water-repellent member 41a is cleaned for each pass. At this time, by automatically cleaning using a cleaning machine (not shown), it is possible to suppress the liquid accumulation (residue after wiping) of the penetrant after wiping.

[0066] The remaining penetrant (excess penetrant) is wiped off by the finish wiping unit 42 (step S8). By wiping off the penetrant with the finish wiping unit 42, the excess penetrant adhering to the component 2 to be inspected is completely removed. Since the finish wiping unit 42 uses a water-absorbent member 42a such as a wipe, it is preferable to replace the water-absorbent member 42a each time.

[0067] The developer is applied by the second application unit 50 and the component is waited for a predetermined time (step S9). If there is a scratch on the surface of the component 2 to be inspected, the penetrant existing inside the scratch will seep out into the developer. Therefore, wait until the penetrant seeps out into the developer.

[0068] It is confirmed whether the penetrant seeps out into the developer, and the penetrant is detected (step S10). The detection of the penetrant may be judged visually. Alternatively, the component 2 to be inspected may be imaged by an imaging device (not shown), and image recognition may be performed to detect the indication pattern of the penetrant from the captured image. If the penetrant is detected (step S10: YES), it is judged that there is a scratch (step S11). Also, if the penetrant is not detected (step S10: NO), it is judged that there is no scratch (step S12). Then, after these judgments, the inspection is terminated (step S13).

[0069] According to this embodiment, the following operational effects are achieved.

[0070] Since the control device 60 controls the operations of the first coating unit 30, the wiping unit 40, and the second coating unit 50, the dye penetration flaw detection inspection can be automatically performed. Therefore, the dye penetration flaw detection inspection can be efficiently realized without requiring manual labor. In addition, since the wiping amount of the penetrant can be stabilized compared to the case where manual labor is required, the inspection quality can be stabilized.

[0071] In addition, since the residue wiped by the rough wiping unit 41 can be wiped off by the finish wiping unit 42, the residue of the excess penetrant can be suppressed. In particular, when automating the dye penetration flaw detection inspection, it is difficult to set the wiping amount of the penetrant. However, by wiping in two stages of rough wiping and finish wiping as described above, the wiping amount can be set in detail. In this way, the automation is facilitated.

[0072] In addition, since the water-repellent member 41a of the rough wiping unit 41 can be used continuously a plurality of times without being replaced for each inspection, the inspection efficiency can be improved.

[0073] In addition, since the finish wiping unit 42 has the water-absorbent member 42a, the excess penetrant can be more reliably wiped off by the water-absorbent member 42a.

[0074] In addition, since the wiping unit 40 is controlled to wipe the inspection target part 2 in a plurality of passes and the current pass wipes out the penetrant toward the next pass, it is possible to suppress the excess penetrant from flowing to the already wiped part, and suppress the residue of the excess penetrant. Therefore, false detection of the penetrant can be suppressed and the inspection accuracy can be improved.

[0075] In addition, since the wiping unit is controlled to wipe the penetrant not only on the upper surface (inspection surface) 2a of the inspection target part 2 but also on the side surface 2b adjacent to the upper surface 2a, when the developer is applied to the upper surface (inspection surface) 2a, it is possible to suppress the penetrant from oozing out from the side surface 2b adjacent to the upper surface (inspection surface) 2a, so that false detection of the penetrant can be suppressed.

[0076] As described above, specific embodiments of the present invention and their modifications have been explained. However, the present invention is not limited to the above embodiments, and various changes can be made and implemented within the scope of the present invention.

[0077] For example, instead of replacing the first coating unit 30, the wiping unit 40, and the second coating unit 50, three arms 20 each having them may be prepared. Also, the wiping by the rough wiping unit 41 and the wiping by the finish wiping unit 42 do not necessarily have to be performed once each. For example, depending on the shape or size of the component 2 to be inspected, the wiping by the rough wiping unit 41 may be omitted. That is, only the wiping by the finish wiping unit 42 may be performed. Also, after performing the wiping by the rough wiping unit 41 once, the wiping by the finish wiping unit 42 may be performed two or more times, such as three times.

Explanation of Reference Numerals

[0078] 1 Dye Penetrant Inspection Apparatus 2 Component to be Inspected 2a Upper Surface (Inspection Surface) 2b Side Surface 2c Boundary 10 Mounting Table 11 Upper Surface 12 First Fixed Clamp 13 Second Fixed Clamp 20 Arm 30 First Coating Unit 31 Spray Can 40 Wiping Unit 41 Rough Wiping Unit 41a Water-Repellent Member 42 Finish Wiping Unit 42a Water-Absorbent Member 42b Elastic Member 50 Second Coating Unit 51 Spray Can 60 Control Device 61 Input Unit 62 Storage Unit 63 Control Unit 63a First Coating Unit Control Section 63b Wiping Unit Control Section 63c Second Coating Unit Control Section

Claims

1. A stage for fixing the component to be inspected, a first coating unit that is fixed to the stage and applies a penetrant for dyeing to the component to be inspected after wiping and drying the cleaning liquid after cleaning with the cleaning liquid, a wiping unit that wipes off the excess penetrant on the surface of the component to be inspected while leaving the penetrant in the scratches on the component to be inspected, a second coating unit that applies a developer to the component to be inspected, and a control device that sequentially operates the first coating unit that performs a coating operation, the wiping unit that performs a wiping operation, and the second coating unit that performs a coating operation. A dye penetration flaw detection inspection device comprising the above.

2. The wiping unit includes a rough wiping unit that relatively roughly wipes the penetrant on the surface of the component to be inspected and a finishing wiping unit that relatively finely wipes the penetrant on the surface of the component to be inspected. The control device executes the wiping of the finishing wiping unit after executing the wiping of the rough wiping unit. The dye penetration flaw detection inspection device according to Claim 1.

3. The rough wiping unit includes a water-repellent member that wipes the penetrant. The dye penetration flaw detection inspection device according to Claim 2.

4. The finishing wiping unit includes a water-absorbent member that wipes the penetrant. The dye penetration flaw detection inspection device according to Claim 2 or Claim 3.

5. The control device wipes the component to be inspected in a plurality of passes and controls the wiping unit so that the penetrant is swept out toward the next pass in the current pass. The dye penetration flaw detection inspection device according to any one of Claims 1 to 4.

6. The control device controls the wiping unit so as to wipe the penetrant also on the surface adjacent to the inspection surface of the component to be inspected. The dye penetration flaw detection inspection device according to any one of Claims 1 to 5. Claim 7 A stage for fixing the component to be inspected, a first application unit that is fixed to the stage and applies a penetrant for staining to the component to be inspected after wiping and drying the cleaning liquid after cleaning with the cleaning liquid, a wiping unit that wipes off the excess penetrant on the surface of the component to be inspected while leaving the penetrant in the scratches from the component to be inspected, a second application unit that applies a developer to the component to be inspected, In a dye penetrant flaw detection inspection apparatus comprising: A dye penetrant flaw detection inspection method, including automatically operating in order the first application unit that performs an application operation, the wiping unit that performs a wiping operation, and the second application unit that performs an application operation.

Images