CN218481427U - Dye check device - Google Patents

Abstract

The utility model belongs to the technical field of dye check, a dye check device is disclosed. The dye check device comprises a spraying structure and a conveying structure, wherein the spraying structure comprises a spraying chamber with two openings, the spraying chamber is provided with a first lifting partition plate assembly and a second lifting partition plate assembly, and the first lifting partition plate assembly is used for sealing the openings; the second lifting partition plate component divides the spraying chamber into at least three process chambers, and the process chambers comprise a cleaning chamber, a penetrating fluid spraying chamber and a developer spraying chamber and are respectively used for cleaning, spraying penetrating fluid, drying and spraying developer on the piece to be detected; the conveying structure comprises a conveying assembly and a positioning assembly, wherein the positioning assembly is used for positioning the piece to be detected, and the conveying assembly is used for enabling the positioning assembly to sequentially penetrate through the cleaning chamber, the penetrating fluid spraying chamber and the developer spraying chamber. The dye check device has good sealing performance, the reagent in the spraying chamber can not escape to pollute the air, and the reagents in the adjacent process chambers can not interfere with each other, thereby ensuring the normal detection.

Description

Dye check device

Technical Field

The utility model relates to a dye check technical field especially relates to dye check device.

Background

Dye-sensitized inspection is a method of non-destructive inspection, which is a surface inspection method mainly used for detecting surface damage such as cracks that cannot be identified by the naked eye.

When dye-based flaw detection is carried out, a coloring agent is sprayed on the surface of a material, the coloring agent permeates into a damaged part, the coloring agent on the surface is washed away after the material is placed for a period of time, a developing agent is sprayed on the cleaned surface, and the damaged part is clearly seen due to the penetration of the coloring agent. The penetrating fluid is permeated into the defect by using the capillary phenomenon, the surface penetrating fluid is removed by cleaning through a cleaning agent, the penetrating fluid in the defect is remained, and the penetrating fluid remained in the defect is adsorbed by using the capillary action of a developer so as to achieve the purpose of detecting the defect.

In the process of spraying the reagents onto the test piece, it is inevitable that these reagents are also emitted into the air, resulting in air pollution. In order to avoid this situation, the prior art provides a dye check device, which includes several adjacent spraying rooms with isolation doors, when spraying, the isolation doors of the spraying rooms are closed, so as to prevent the reagent in the spraying rooms from escaping and polluting the air, but the adjacent spraying rooms of the dye check device are independent from each other and have no other sealing facilities outside, when a to-be-tested piece is transferred between the adjacent spraying rooms, the isolation doors of the spraying rooms need to be opened, so that the spraying rooms are communicated with the outside, the reagent in the spraying rooms can escape through the isolation doors, and the ambient air can still be polluted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dye check device, this dye check device leakproofness is better, and reagent when can avoiding the dye check causes the pollution to the air.

To achieve the purpose, the utility model adopts the following technical proposal:

a dye penetrant inspection apparatus comprising:

the spraying structure comprises a spraying chamber, the spraying chamber is provided with two oppositely arranged openings, the two openings are used for enabling the piece to be detected to enter and exit the spraying chamber, a first lifting partition plate assembly is arranged at the opening, and the first lifting partition plate assembly is used for sealing the opening; at least two second lifting partition plate assemblies are arranged in the spraying chamber at intervals, the second lifting partition plate assemblies divide the spraying chamber into at least three process chambers, and the process chambers comprise a cleaning chamber, a penetrating fluid spraying chamber and a developer spraying chamber;

the conveying structure comprises a conveying assembly and a positioning assembly, the positioning assembly is used for positioning the piece to be detected, and the conveying assembly is used for enabling the positioning assembly to sequentially pass through the cleaning chamber, the penetrating fluid spraying chamber and the developer spraying chamber.

Preferably, the process chamber is provided with a lance, at least one side wall of the process chamber being provided with at least one lance arranged in the direction of movement of the positioning assembly.

Preferably, a wiping assembly is also provided within the permeate spray booth, the wiping assembly being arranged in the direction of movement of the positioning assembly, and the wiping assembly being located between the spray gun and the outlet of the permeate spray booth.

Preferably, the wiping assembly comprises a wiping roller and a wiping cloth, the wiping roller is rotatably arranged in the penetrating fluid spraying chamber, the wiping cloth is arranged on the periphery of the wiping roller, and the wiping cloth is used for wiping the piece to be measured.

Preferably, the wiping component also comprises a lifting mechanism, and the lifting mechanism is used for driving the wiping component to reciprocate up and down.

Preferably, the first lifting partition plate assembly comprises a first driving part and a partition plate body, the partition plate body is in transmission connection with the first driving part, and the first driving part is used for driving the partition plate body to open or close the opening.

Preferably, the first lifting partition plate assembly further comprises a connecting plate, one end of the connecting plate is in transmission connection with the first driving piece, the other end of the connecting plate is connected with the partition plate body, and the first driving piece drives the connecting plate to move up and down to drive the partition plate body to ascend or descend.

Preferably, the conveying assembly comprises a motor and a conveying belt, the motor is in transmission connection with the conveying belt, and the positioning assembly is arranged on the conveying belt.

Preferably, the positioning assembly comprises a base and a positioning block, the base is fixedly connected with the positioning block, the positioning block is used for positioning the piece to be detected, and the base can move along the conveyor belt.

Preferably, the inner side and the outer side of the first lifting partition plate assembly and the inner side and the outer side of the second lifting partition plate assembly are provided with sensors, the sensors are used for sensing movement of the positioning assembly, and the first lifting partition plate assembly, the second lifting partition plate assembly and the sensors are connected to the controller.

The utility model has the advantages that:

the utility model discloses a dye check device, which comprises a spraying structure and a transmission structure, wherein the spraying structure comprises a spraying chamber with two oppositely arranged openings, the spraying chamber is provided with a first lifting clapboard component and at least two second lifting clapboard components, the first clapboard lifting component is used for sealing the openings and separating the spraying chamber from the outside; the second lifting partition plate component divides the spraying chamber into process chambers, and each process chamber comprises a cleaning chamber, a penetrating fluid spraying chamber and a developer spraying chamber and is respectively used for cleaning a piece to be detected, spraying penetrating fluid, drying and spraying developer; the conveying structure comprises a conveying assembly and a positioning assembly, wherein the positioning assembly is used for positioning the piece to be detected, and the conveying assembly is used for enabling the positioning assembly to sequentially penetrate through the cleaning chamber, the penetrating fluid spraying chamber and the developer spraying chamber. This kind of dye check device's spray booth sets up first baffle lifting unit, seals the spray booth, and the inside reagent of spray booth can not escape, has avoided the pollution to the outside air, and second lifting unit can guarantee that process gas has better leakproofness, avoids the different reagents in the adjacent process chamber to interfere with each other, has ensured dye check's normal clear, and gas in the process chamber can not escape, leads to causing the pollution to the outside air. The conveying structure can enable the piece to be detected to be free from excessively relying on manual work in the detection process, and detection efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of a dye flaw detector according to an embodiment of the present invention;

fig. 2 is a partially enlarged view of a of fig. 1 according to the present invention;

FIG. 3 is a schematic structural view of another perspective of the dye penetrant inspection apparatus in accordance with the embodiment of the present invention;

FIG. 4 is a schematic view of a wiping roller according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a sieve frame according to an embodiment of the present invention.

In the figure:

11. a first lifting barrier assembly; 111. a first driving member; 112. a separator body; 113. a connecting plate; 12. a second lifting barrier assembly; 13. a spray chamber; 131. a cleaning chamber; 132. a permeate spray chamber; 133. a developer spray chamber; 161. a spray gun; 162. a wiping component; 1621. a wiping roller;

22. a positioning assembly; 221. a base; 222. positioning blocks;

30. a frame;

40. a screen frame; 41. an inner ring; 42. an outer ring; 43. a support frame;

51. a sensor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

In the production process of the lithium ion battery anode material, metal and nonmetal foreign matters introduced in the process need to be separated, the quality of a product is ensured, and screening equipment is needed to screen processing materials in all procedures in the production process of the anode material so as to screen out the metal and nonmetal foreign matters. Common use ultrasonic vibration sieve sieves, and the material constantly collides, rubs with the bank of screens of screen cloth during the screening, can lead to easily appearing the crack on the bank of screens, needs to carry out the dye check to it.

Accordingly, the present embodiment provides a dye flaw detection apparatus.

As shown in fig. 1 to 4, the dye penetrant inspection apparatus provided in this embodiment includes a spraying structure and a conveying structure, where the spraying structure includes a spraying chamber 13, the spraying chamber 13 has two openings arranged oppositely, the two openings are used for the piece to be tested to enter and exit the spraying chamber 13, a first lifting partition plate assembly 11 is arranged at the opening, and the first lifting partition plate assembly 11 is used for closing the opening; at least two second lifting partition plate assemblies 12 are arranged inside the spraying chamber 13, the second lifting partition plate assemblies 12 divide the spraying chamber 13 into at least three process chambers, and the process chambers comprise a cleaning chamber 131, a penetrating fluid spraying chamber 132 and a developer spraying chamber 133; the transfer structure includes a transfer module and a positioning module 22, the positioning module 22 is used for positioning the object to be tested, and the transfer module is used for enabling the positioning module 22 to sequentially pass through a cleaning chamber 131, a permeate spraying chamber 132 and a developer spraying chamber 133. Specifically, in this embodiment, the opening of the spray booth 13 can be sealed by the first lifting partition plate assembly 11, when spraying is performed, the reagent can be prevented from being polluted by the external gas when the gas escapes to the external air, the process chamber can be sealed by the second lifting partition plate assembly 12, the reagent in the process chamber is prevented from entering the adjacent process chamber, the detection effect is prevented from being affected, and the first lifting partition plate assembly 11 and the second lifting partition plate assembly 12 are arranged in parallel, so that the arrangement of the conveying structure can be facilitated. Alternatively, two adjacent first lifting diaphragm assemblies 11 and second lifting diaphragm assemblies 12 or two adjacent second lifting diaphragm assemblies 12 cannot be raised at the same time. Reagent leakage and gas interference between adjacent process chambers can be avoided to the greatest extent. The cleanout room 131 can be used for pre-cleaning the piece to be detected, dirt on the surface of the piece to be detected can be cleaned, the detection effect is ensured, the penetrating fluid spraying room 132 can be used for spraying penetrating agent on the surface of the piece to be detected and drying the piece to be detected, and the developer spraying room 133 can be used for spraying developer on the surface of the piece to be detected, so that the detection of the piece to be detected is ensured. The conveying assembly of the conveying structure can enable the positioning assembly 22 to sequentially pass through the cleaning chamber 131, the penetrating fluid spraying chamber 132 and the developer spraying chamber 133, so that the situation that a workpiece to be detected is moved manually is avoided, the detection efficiency can be improved, and the interference of personnel on the detection result can be avoided.

Optionally, at both openings of the spray booth 13, there are shutters (not shown in the figures) that are flexible and can be folded and bent. Specifically, the material of the shielding member may be cloth, rubber, plastic, etc., which is not described herein.

Optionally, the dye-penetrant inspection apparatus further includes a frame 30, and the spraying structure and the conveying structure are both disposed on the frame 30. Specifically, the arrangement of the rack 30 can facilitate arrangement of the spraying structure and the conveying structure, and also facilitate movement of the entire dye penetrant inspection apparatus, thereby improving convenience in use of the dye penetrant inspection apparatus.

Further, the process chamber is provided with a lance 161, and at least one sidewall of the process chamber is provided with at least one lance 161 arranged in the direction of movement of the positioning assembly 22. Specifically, in the present embodiment, the cleaning chamber 131, the penetrating fluid spraying chamber 132, and the developer spraying chamber 133 are each provided with two spray guns 161, and the two spray guns 161 located in the same process chamber are symmetrically disposed on the side walls of the corresponding process chamber (the cleaning chamber 131, the penetrating fluid spraying chamber 132, or the developer spraying chamber 133) on the left and right sides along the moving direction of the positioning assembly 22, such an arrangement enables the liquid sprayed by the spray guns 161 to be fully distributed on the object to be tested, and there is no incomplete spraying of the object to be tested, and the two spray guns 161 of the cleaning chamber 131 are used for spraying the cleaning agent, the two spray guns 161 of the penetrating fluid spraying chamber 132 are used for spraying the penetrating agent, and the two spray guns 161 of the developer spraying chamber 133 are used for spraying the developer. In other embodiments, the number of the spray guns 161 in the process chamber may be increased or decreased according to actual use, which is not described herein.

Further, the permeate spray booth 132 is also provided with a wiper assembly 162, the wiper assembly 162 being disposed along the direction of movement of the positioning assembly, the wiper assembly 162 being located between the spray gun 161 and the outlet of the permeate spray booth 132. Specifically, the wiping component 162 is arranged to wipe the piece to be detected sprayed with the penetrant, so as to ensure that the subsequent detection steps of the piece to be detected are normally performed.

Further, the wiping component 162 includes a wiping roller 1621 and a wiping cloth, the wiping roller 1621 is rotatably disposed in the penetrating fluid spraying chamber, the wiping cloth is disposed on the periphery of the wiping roller 1621, and the wiping cloth is used for wiping the to-be-tested member. Specifically, in this embodiment, the wiping roller 1621 is disposed parallel to the first lifting partition plate assembly 11, so that the wiping roller 1621 and the to-be-tested object have a larger contact area, and the to-be-tested object is ensured to be completely wiped and dried. Wiping roller 1621 drives the wiping cloth to rotate, so that the wiping cloth has a better drying effect on the piece to be tested, and the excessive contact between the wiping cloth and the piece to be tested is avoided. The wiping roller 1621 may be driven by a conventional drive motor or the like, which will not be described in detail herein.

Further, the wiping member 162 includes a lifting mechanism (not shown) for driving the wiping member 162 to reciprocate up and down. Specifically, set up elevating system and can drive and wipe subassembly 162 back and forth movement from top to bottom, can be convenient for adjust the height of wiping subassembly 162, can make to wipe subassembly 162 and can be applicable to the piece that awaits measuring of co-altitude not for this wipes subassembly 162 and has the commonality. The lifting mechanism can adopt a common cylinder structure or a chain wheel structure, and the details are not described herein.

Further, the first lifting partition assembly 11 includes a first driving member 111 and a partition body 112, the partition body 112 is in transmission connection with the first driving member 111, and the first driving member 111 is used for driving the partition body 112 to open or close the opening. Specifically, in this embodiment, the partition body 112 is used for sealing the spraying chamber 13, and the first driving member 111 drives the partition body 112 to ascend and descend, so as to realize automatic operation, reduce the workload of the personnel, and ensure the working efficiency. In the present embodiment, the partition body 112 is lifted or fallen by the first driving member 111 to open or close the opening of the spray booth 13, and in other embodiments, the partition body 112 may be configured to slide to the left or to the right by the first driving member 111 to open or close the opening of the spray booth 13 according to practical arrangements, and is not limited in particular.

Further, the first lifting partition assembly 11 further includes a connecting plate 113, one end of the connecting plate 113 is in transmission connection with the first driving member 111, the other end of the connecting plate 113 is connected with the partition body 112, and the first driving member 111 drives the connecting plate 113 to move up and down to drive the partition body 112 to ascend or descend. Specifically, in this embodiment, the first driving member 111 is a lifting cylinder, and the telescopic shaft of the lifting cylinder is connected to the connecting plate 113, so that the telescopic shaft can drive the connecting plate 113 to lift, the connecting plate 113 is connected to the partition body 112, and then the partition body 112 is lifted, thereby achieving the effect of opening or closing the opening of the spraying chamber 13. In other embodiments, the first driving member 111 may be any one of the existing devices capable of achieving linear reciprocating motion, such as a chain transmission device, a cam-type rotating mechanism, a crank-type rotating mechanism, etc., without being limited thereto.

Specifically, the specific structures of the second lifting partition plate assembly 12 and the first lifting partition plate assembly 11 are the same, and are not described herein too much.

Further, the conveying assembly comprises a motor and a conveying belt, the motor is in transmission connection with the conveying belt, and the positioning assembly 22 is arranged on the conveying belt. In particular, in this embodiment, the conveyor belt may be any conveyor belt capable of conveying materials, and is not limited herein. Preferably, the conveyor belt can be configured to reciprocate to facilitate retrieval of the positioning assembly 22 for subsequent testing.

Further, the positioning assembly 22 includes a base 221 and a positioning block 222, the base 221 is fixedly connected to the positioning block 222, the positioning block 222 is used for positioning the to-be-tested piece, and the base 221 can move along the conveyor belt. Specifically, as shown in fig. 5, in this embodiment, a structure of the positioning assembly 22 is described by taking the to-be-measured object as the sieve frame 40 as an example, where the sieve frame 40 in this embodiment includes an inner ring 41, an outer ring 42, and support frames 43 connecting the inner ring 41 and the outer ring 42, the inner ring 41 and the outer ring 42 are concentrically arranged, the plurality of support frames 43 are symmetrically arranged about a common center of circle of the inner ring 41 and the outer ring 42, and divide an area between the inner ring 41 and the outer ring 42 into a plurality of parts, the positioning assembly 22 includes a base 221 and a positioning block 222, and the positioning block 222 is a cylinder protruding from the base 221, and the cylinder is used for positioning the inner ring 41 of the sieve frame 40. Optionally, a buckle may be further disposed on the cylinder, and the buckle is used for clamping the sieve frame 40. In other embodiments, the shapes and sizes of the base 221 and the positioning block 222 can be specifically set according to the actual need of the detected parts, which is not described herein, and the fastener can also be set on the base 221 or the positioning block 222 according to the actual use.

Alternatively, in other embodiments, the positioning assembly 22 may be at least two clamping blocks disposed on the conveying assembly, and the at least two clamping blocks are used for clamping the object to be tested. Use the piece that awaits measuring to be reel 40 as an example, in this embodiment, locating component 22 comprises two grip blocks, two grip block levels set up on transmission assembly, two grip blocks can be close to each other or keep away from to press from both sides tight or relax the reel 40, the side that two grip blocks are close to each other is the arcwall face, the arcwall face cooperation of two grip blocks forms the accommodation space who holds reel 40, the stability of reel 40 in the testing process of detecting a flaw can be ensured to this kind of structure. Preferably, the connecting line of the middle points of the two clamping blocks passes through the circle centers of the inner ring 41 and the outer ring 42 of the screen frame 40, so that the stress of the screen frame 40 can be ensured to be balanced.

Further, the inner and outer sides of the first lifting partition plate assembly 11 and the second lifting partition plate assembly 12 are provided with sensors 51, the sensors 51 are used for sensing the movement of the positioning assembly 22, and the first lifting partition plate assembly 11, the second lifting partition plate assembly 12 and the sensors 51 are all connected to the controller. Specifically, in the present embodiment, in order to improve the automation performance of the dye penetrant inspection apparatus, the dye penetrant inspection apparatus is further provided with sensors 51, a plurality of sensors 51 are disposed on the inner side and the outer side of the first elevating barrier assembly 11 and the second elevating barrier assembly 12, that is, at the inlet and the outlet of the process chamber, and the sensors 51 can sense the movement of the positioning assembly 22; the dye-penetrant inspection device is further provided with a controller, the controller is an existing Programmable Logic Controller (PLC) which can be edited, the controller is connected with the sensor 51 and is connected with the first driving part 111 of the first lifting partition plate assembly 11 and the second lifting partition plate assembly 12, and the controller can receive information of the sensor 51 and control the first lifting partition plate assembly 11 or the second lifting partition plate assembly 12 to lift or fall according to the information. Also, the controller can be used to control the operation or stop of the conveyor belt.

Taking the screen frame 40 as an example to describe the dye-penetrant inspection process, firstly, the screen frame 40 needs to be placed on the positioning component 22, and the cylinder is inserted into and matched with the inner ring 41 of the screen frame 40; the conveyor belt drives the positioning component 22 to move, when the conveyor belt moves to the opening of the spraying chamber 13, the sensor 51 at the opening senses the positioning component 22 and transmits information to the controller, the controller lifts the first lifting partition plate component 11 based on the position, the conveyor belt continues to operate and transmits the positioning component 22 to the cleaning chamber 131, the controller controls the first lifting partition plate component 11 to fall down, the spray gun 161 in the cleaning chamber 131 sprays cleaning liquid to the surface of the screen frame 40 to clean the surface of the screen frame 40, after the cleaning is completed, the conveyor belt continues to operate, when the sensor 51 at the outlet of the cleaning chamber 131 senses the positioning component 22, the controller controls the second lifting partition plate component 12 at the outlet of the cleaning chamber 131 to lift, and the conveyor belt can transmit the positioning component 22 to the penetrating fluid spraying chamber 133 until the dye penetrant inspection detection of the screen frame 40 is completed.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A dye flaw detection apparatus, characterized by comprising:

the spraying structure comprises a spraying chamber (13), the spraying chamber (13) is provided with two oppositely arranged openings, the two openings are used for enabling a piece to be tested to enter and exit the spraying chamber (13), a first lifting partition plate component (11) is arranged at the opening, and the first lifting partition plate component (11) is used for sealing the opening; at least two second lifting partition plate assemblies (12) are arranged in the spraying chamber (13) at intervals, the second lifting partition plate assemblies (12) divide the spraying chamber (13) into at least three process chambers, and the process chambers comprise a cleaning chamber (131), a penetrating fluid spraying chamber (132) and a developer spraying chamber (133);

a transfer structure, the transfer structure includes transfer assembly and locating component (22), locating component (22) are used for fixing a position the piece to be measured, the transfer assembly is used for making locating component (22) pass through in proper order wash room (131), penetrant spraying room (132) and developer spraying room (133).

2. The dye inspection apparatus according to claim 1, characterized in that the process chamber is provided with a spray gun (161), at least one side wall of the process chamber being provided with at least one spray gun (161) arranged in the direction of movement of the positioning assembly (22).

3. The dye penetrant inspection apparatus according to claim 2, wherein a wiping assembly (162) is further disposed within the permeate spray booth (132), the wiping assembly (162) is arranged along a direction of movement of the positioning assembly (22), and the wiping assembly (162) is located between the spray gun (161) and an outlet of the permeate spray booth (132).

4. The dye penetrant inspection apparatus according to claim 3, wherein the wiping assembly (162) includes a wiping roller (1621) rotatably disposed within the permeate spray chamber (132), and a wiping cloth disposed at an outer periphery of the wiping roller (1621) for wiping the test object.

5. The dye penetrant inspection apparatus according to claim 4, wherein the wiper assembly (162) further includes an elevating mechanism for driving the wiper assembly (162) to reciprocate up and down.

6. The dye penetrant inspection apparatus of claim 1, wherein the first elevating bulkhead assembly (11) comprises a first driving member (111) and a bulkhead body (112), the bulkhead body (112) is in transmission connection with the first driving member (111), and the first driving member (111) is used for driving the bulkhead body (112) to open or close the opening.

7. The dye penetrant inspection apparatus according to claim 6, wherein the first elevating diaphragm assembly (11) further includes a connecting plate (113), one end of the connecting plate (113) is in transmission connection with the first driving member (111), the other end of the connecting plate (113) is connected with the diaphragm body (112), and the first driving member (111) drives the connecting plate (113) to move up and down to drive the diaphragm body (112) to move up and down.

8. The dye penetrant inspection apparatus of claim 1, wherein the conveyor assembly includes a motor and a conveyor belt, the motor is in drive connection with the conveyor belt, and the positioning assembly (22) is disposed on the conveyor belt.

9. The dye penetrant inspection apparatus according to claim 8, wherein the positioning assembly (22) includes a base (221) and a positioning block (222), the base (221) is fixedly connected to the positioning block (222), the positioning block (222) is used for positioning the piece to be tested, and the base (221) is movable along the conveyor belt.

10. The dye penetrant inspection apparatus of any one of claims 1-9, wherein sensors (51) are disposed inside and outside the first lift spacer assembly (11) and the second lift spacer assembly (12), the sensors (51) are used to sense movement of the positioning assembly (22), and the first lift spacer assembly (11), the second lift spacer assembly (12), and the sensors (51) are connected to a controller.

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