CN114152575B - Overturning device, and dye-sensitized flaw detection system and detection method comprising overturning device - Google Patents
Overturning device, and dye-sensitized flaw detection system and detection method comprising overturning device Download PDFInfo
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- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/91—Investigating the presence of flaws or contamination using penetration of dyes, e.g. fluorescent ink
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Abstract
The invention provides a turnover device which can turn over a retainer by controlling the receiving and releasing amount and the receiving and releasing speed of a turnover belt and a connecting belt and cannot damage the surface of the retainer. The invention also provides a dye check detection system comprising the turnover device, the detection system can realize the automation of the whole dye check flow of the retainer, meet the requirement of double-side detection of the retainer, use the image recognition method to detect the welding line of the retainer, and the detection result is reliable; finally, the invention also provides a detection method adopting the dye check detection system, which uses weak vibration to accelerate the permeation and development processes after spraying the penetrant and the developer, and adopts heating pressurized air and normal temperature pressurized air to dry after different cleaning steps, thereby reducing the detection time and preventing the penetrant at the welding seam part from being dried to influence the detection result.
Description
Technical Field
The invention relates to the technical field of dye penetrant inspection, in particular to a turnover device, a dye penetrant inspection detection system comprising the turnover device and a detection method.
Background
The tunneling machine is an engineering machine for tunneling, integrates mechanical, electrical, hydraulic, sensing, information technology and other systems into a whole, can perform tunneling work on long-distance, high-depth and large-diameter tunnels, can adapt to severe working environments, and has high automation and intelligence degrees. With the rapid development of national economy, many central cities are continuously expanding outwards and perfecting underground traffic systems, and meanwhile, some emerging cities are developing underground spaces to build subway tunnels, so the demand of development machines is continuously increasing.
When the heading machine is used for tunneling, the main bearing plays an important role, and not only needs to bear the extremely large axial load, radial load and overturning moment borne by the cutter head, but also needs to transmit the rotary moment required by the rotation of the cutter head. The main bearing of the heading machine mainly comprises an outer ring, two inner rings, three rows of rolling bodies and a retainer, wherein the main bearing retainer is used as a key part of a main bearing, and the main function of the main bearing is to keep proper intervals among the rolling bodies. In addition, in the main bearing of the heading machine, the retainer is in contact with the rolling body and the guide flanges of the inner and outer rings, and the contact condition of the retainer is also important for the running performance of the main bearing.
At present, an all-copper retainer and a steel welding copper retainer are mainly used in a main bearing of the heading machine, and compared with a retainer using an all-copper structure, the steel welding copper retainer is lower in production and manufacturing cost, so that the steel welding copper retainer is more preferably selected to be used at present in order to save the manufacturing cost of a main bearing.
The supporting legs and the guide blocks of the steel welding copper retainer are welded with the retainer body, and the quality of welding seams of the steel welding copper retainer directly influences the stability and the service life of a main bearing of the heading machine. In view of the fact that steel welding copper welding seams are the combination of steel materials and copper materials, magnetic powder inspection cannot be used for detection, inevitable gaps exist in the middle of the steel welding copper welding seams, ultrasonic waves cannot be used for detection, and at present, a dye-based inspection method is mainly used for welding seam detection. The penetrant, cleaning agent and developer used in dye check are all harmful to some extent, which easily causes problems in respiration. Some existing automated methods, while reducing direct human contact with the detection process, are automated for only one step, and the washing step does not remove the penetrant completely to facilitate visualization.
In view of the above, there is a need for a flipping device, and a dye-sensitized flaw detection system and a detection method including the flipping device to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide turnover equipment, which aims to solve the problem of turnover in the process of detecting the impurity dye flaw of a retainer, and the specific technical scheme is as follows:
a turnover device comprises a turnover device workbench, a turnover belt and a connecting belt, wherein a first turnover belt winding and unwinding end and a second turnover belt winding and unwinding end are arranged on the turnover device workbench, and two ends of the turnover belt are respectively connected with the first turnover belt winding and unwinding end and the second turnover belt winding and unwinding end; the turnover equipment workbench is provided with a first connecting belt retracting end and a second connecting belt retracting end, and two ends of the connecting belt are respectively connected with the first connecting belt retracting end and the second connecting belt retracting end; the turnover belt is arranged above the connecting belt and is connected with the connecting belt through the connecting beam, and one surface of the turnover belt, which deviates from the connecting belt, is used for placing a workpiece to be turned over.
Preferably, in the above technical scheme, the first turning belt retracting end and the first connecting belt retracting end are located on the same side, the second turning belt retracting end and the second connecting belt retracting end are located on the same side, the workpiece is placed between the first turning belt retracting end and the second turning belt retracting end, the retracting amount and the retracting rate of the two pairs of turning belts at the first turning belt retracting end and the second turning belt retracting end and the retracting amount and the retracting rate of the two pairs of connecting belts at the first connecting belt retracting end and the second connecting belt retracting end are controlled, and the workpiece is turned 180 degrees towards the first turning belt retracting end or the second turning belt retracting end.
Preferred among the above technical scheme, still including removing stick and slewing mechanism, slewing mechanism includes rotation axis and drive group, the rotation axis is connected to the drive group, remove the stick set up in just be located the top in upset area on the rotation axis, it is used for removing the work piece on the upset area to remove the stick.
The overturning equipment has the beneficial effects that: the retainer can be turned leftwards or rightwards, the requirement for double-side detection of the retainer is met, in addition, only friction force exists between the retainer and a turning belt, the surface of the retainer cannot be damaged in the whole turning process, and the problem that the retainer is damaged in the turning process is solved.
The invention also provides a dye check detection system, aiming at realizing the automation of the whole process of dye check of the retainer, and the specific technical scheme is as follows:
the utility model provides a dye check detection system, includes that the first cleaning equipment that sets gradually, first air-dry equipment, first spraying equipment, second cleaning equipment, second air-dry equipment, second spraying equipment, image acquisition equipment and foretell tipping arrangement, first spraying equipment is used for giving welding seam position spraying penetrant, second spraying equipment is used for giving welding seam position spraying developer, image acquisition equipment is used for gathering the image at welding seam position, tipping arrangement is used for the upset work piece.
Preferably, in the above technical solution, each of the first cleaning device and the second cleaning device includes a first driving assembly, a second driving assembly, a first suspension beam, a third driving assembly, a scrubber, a first conveying mechanism, a cleaning device worktable, and a first injector, and the first conveying mechanism is disposed on the cleaning device worktable and is used for conveying the workpiece along a first direction; the first suspension beam is arranged on the cleaning equipment workbench in a sliding mode along the first direction and driven by the third driving assembly, the scourer is arranged on the first suspension beam in a sliding mode along the second direction and driven by the second driving assembly, and the first ejector is arranged on the first suspension beam in a sliding mode along the second direction and driven by the first driving assembly.
Preferably in the above technical scheme, the first air-drying device and the second air-drying device both comprise a fan device, a second conveying mechanism and an air-drying device workbench, the second conveying mechanism is arranged on the air-drying device workbench and used for conveying workpieces along a first direction, and the fan device is arranged on the air-drying device workbench and above the second conveying mechanism.
Preferably, in the above technical solution, each of the first spraying device and the second spraying device includes a fourth driving assembly, a second ejector, a second suspension beam, a fifth driving assembly, a third conveying mechanism and a spraying device worktable, and the third conveying mechanism is arranged on the spraying device worktable and is used for conveying a workpiece; the second suspension beam is arranged on the workbench of the spraying equipment in a sliding mode along the first direction and driven by a fifth driving assembly, and the second ejector is arranged on the second suspension beam in a sliding mode along the second direction and driven by a fourth driving assembly.
Preferably, in the above technical solution, the image capturing device includes an industrial camera, a third suspension beam, a sixth driving assembly, a fourth conveying mechanism, an image capturing device workbench and a seventh driving assembly, and the fourth conveying mechanism is arranged on the image capturing device workbench and used for conveying workpieces; the third suspension beam is arranged on the workbench of the image acquisition equipment in a sliding mode along the first direction and driven by a sixth driving assembly, and the industrial camera is arranged on the third suspension beam in a sliding mode along the second direction and driven by a seventh driving assembly.
The invention also provides a dye check detection method, which adopts the dye check detection system, and specifically comprises the following steps:
step S1: conveying the workpiece to first cleaning equipment, and cleaning a welding seam part to ensure that no obvious dirt exists on the surface of the workpiece;
step S2: conveying the workpiece to first air drying equipment, wherein the first air drying equipment dries the welding seam part by adopting heated and pressurized air;
step S3: conveying the workpiece to first spraying equipment, and uniformly spraying penetrant on the welding seam part in the first spraying equipment;
step S4: after 3-7 minutes of permeation, conveying the workpiece to second cleaning equipment for cleaning, and immediately ending the cleaning process when no obvious penetrant color exists;
step S5: conveying the workpiece to second air drying equipment, conveying normal-temperature pressurized air for drying, and immediately finishing the air drying process when no obvious liquid film exists at the part to be welded;
step S6: conveying the workpiece to second spraying equipment to spray a developer to the welding seam part;
step S7: waiting for 3-7 minutes, conveying the workpiece to image acquisition equipment, and acquiring an image of a welding seam part;
step S8: conveying the workpiece to turnover equipment, turning the workpiece over 180 degrees, and repeating the steps S1-S7 to detect the other surface;
step S9: analyzing the collected images, and judging the welding seam detection result by using an image recognition method.
In the above technical solution, preferably, in both the step S3 and the step S6, the workpiece is controlled to repeatedly move in the first direction, so that the workpiece is in a vibration state;
in the step S6, the developer is sprayed at the position 150mm-300mm away from the welding seam position.
The detection system and the method have the following beneficial effects:
the detection system and the detection method realize automation of the dye-sensitized solar cell. After the penetrant and the developer are sprayed, the penetrant and the developer are accelerated by weak vibration, and after different cleaning steps, the penetrant and the developer are dried by heating and pressurizing air and normal-temperature pressurizing air, so that the detection time is reduced, and the penetrant at the welding seam part is prevented from being dried to influence the detection result; the weld joint of the steel welding copper retainer is detected by using an image recognition method, the collected detection image is stored, and the detection results of all the weld joints are comprehensively compared, so that the detection result is more reliable.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a main bearing;
FIG. 2 is a schematic structural view of the cage;
FIG. 3 is a schematic view of the structure of the cleaning apparatus;
FIG. 4 is a schematic view of the construction of the seasoning apparatus;
FIG. 5 is a schematic view of the structure of the spray coating device;
FIG. 6 is a schematic structural diagram of an image capturing apparatus;
FIG. 7 is a schematic view of the construction of the flipping apparatus;
FIG. 8 is a schematic view of a step of turning the retainer right by the turning device;
FIG. 9 is a schematic view of the step of turning the retainer to the left by the turning apparatus;
wherein, 1a, a main push retainer, 1b, an auxiliary push retainer, 1c, a radial retainer, 2a, a retainer body, 2b, a guide block, 2c, a support leg, 3a, a first driving component, 3b, a second driving component, 3c, a first suspension beam, 3d, a third driving component, 3e, a scourer, 3f, a first conveying mechanism, 3g, a cleaning equipment workbench, 3h, a first ejector, 4a, a fan device, 4b, a second conveying mechanism, 4c, an air drying equipment workbench, 5a, a fourth driving component, 5b, a second ejector, 5c, a second suspension beam, 5d, a fifth driving component, 5e, a third conveying mechanism, 5f, a spraying equipment workbench, 6a, an industrial camera, 6b, a third suspension beam, 6c, a sixth driving component, 6d, a fourth conveying mechanism, 6e, an image acquisition equipment workbench, 6f, a seventh driving assembly, 7a, a connecting beam, 7b, a first overturning belt receiving and releasing end, 7c, a first connecting belt receiving and releasing end, 7d, a moving rod, 7e, a rotating mechanism, 7f, an overturning belt, 7g, a connecting belt, 7h, an overturning equipment workbench, 7i, a second connecting belt receiving and releasing end, 7j and a second overturning belt receiving and releasing end.
Detailed Description
In order that the invention may be more fully understood, a more particular description of the invention will now be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1:
the main bearing is a key part of the heading machine and mainly comprises an outer ring, two inner rings, three rows of rolling bodies and a retainer, wherein the main bearing retainer is used as a key part of the main bearing and has the main function of keeping proper intervals among the rolling bodies. Referring to fig. 1, the cage of the main bearing comprises a main push cage 1a, an auxiliary push cage 1b and a radial cage 1c, the three cages are identical in structural form and each comprises a cage body 2a, a guide block 2b arranged on the cage body 2a and a support leg 2c, and a plurality of pockets are arranged on the cage body 2a, as shown in fig. 2.
In the steel welding copper holder, holder main part 2a is steel, and guide block 2a and landing leg 2c are copper material, for welding between guide block, landing leg and the holder main part, and its welding quality directly influences the working property of holder, closely relates with the life of tunnelling owner's bearing, for realizing the high-quality high efficiency detection to steel welding copper holder, this embodiment provides a dye penetration detection system who is applied to steel welding copper holder.
Referring to fig. 3-9, the detection system includes first cleaning equipment, first air-dry equipment, first spraying equipment, second cleaning equipment, second air-dry equipment, second spraying equipment, image acquisition equipment and the tipping arrangement that sets gradually, first spraying equipment is used for welding seam position spraying penetrant, second spraying equipment is used for welding seam position spraying developer, image acquisition equipment is used for gathering the image of welding seam position, the tipping arrangement is used for overturning the work piece, realizes continuing to detect after the work piece overturns promptly. In this embodiment, the workpiece is a steel brazing retainer.
The structure of the first cleaning device and the structure of the second cleaning device are the same in the embodiment, which are collectively referred to as the cleaning device in the embodiment, as shown in fig. 3, the cleaning device includes a first driving assembly 3a, a second driving assembly 3b, a first suspension beam 3c, a third driving assembly 3d, a scrubber 3e, a first conveying mechanism 3f, a cleaning device worktable 3g and a first ejector 3h, wherein the first conveying mechanism 3f is arranged on the cleaning device worktable 3g and is used for conveying workpieces in a first direction; the first suspension beam 3c is slidably disposed on the cleaning device workbench 3g along a first direction and driven by a third driving assembly 3d, the scrubber 3e is slidably disposed on the first suspension beam 3c along a second direction and driven by a second driving assembly 3b, and the first ejector 3h is slidably disposed on the first suspension beam 3c along the second direction and driven by a first driving assembly 3a (that is, the length direction of the first suspension beam 3c is perpendicular to the first direction).
The scourer 3e and the first ejector 3h are both located above the first conveying mechanism 3f, the scourer 3e is used for removing adsorbates at a welding seam, and the first ejector 3h is used for ejecting cleaning agents to clean the welding seam. In this embodiment, the second direction and the first direction are perpendicular to each other, and preferably, the first direction is a direction in which the workpiece flows in the detection system.
In this embodiment, the first air-drying device and the second air-drying device have the same structure, and are collectively referred to as air-drying devices in this embodiment, as shown in fig. 4, the air-drying device includes a fan device 4a, a second conveying mechanism 4b, and an air-drying device workbench 4c, the second conveying mechanism 4b is disposed on the air-drying device workbench 4c and is used for conveying workpieces along a first direction, and the fan device 4a is disposed on the air-drying device workbench 4c and is located above the second conveying mechanism 4 b. Please refer to the prior art (for example, the structural form of the hair dryer) for the fan device 4a, the fan device 4a can deliver heated and pressurized air and normal temperature and pressurized air, and meet the requirements of different processes.
The first spraying device and the second spraying device in the embodiment have the same structure, and are collectively referred to as spraying devices in the embodiment, as shown in fig. 5, the spraying device includes a fourth driving assembly 5a, a second ejector 5b, a second suspension beam 5c, a fifth driving assembly 5d, a third conveying mechanism 5e and a spraying device worktable 5f, and the third conveying mechanism 5e is arranged on the spraying device worktable 5f and is used for conveying workpieces; the second suspension beam 5c is slidably disposed on the spraying equipment worktable 5f along the first direction and driven by a fifth driving assembly 5d, and the second injector 5b is slidably disposed on the second suspension beam 5c along the second direction and driven by a fourth driving assembly 5 a. The second sprayer sprays penetrant in the first spraying device, developer in the second spraying device, and the length direction of the second cantilever beam 5c is perpendicular to the first direction.
Referring to fig. 6, the image capturing device includes an industrial camera 6a, a third suspension beam 6b, a sixth driving assembly 6c, a fourth conveying mechanism 6d, an image capturing device worktable 6e, and a seventh driving assembly 6f, and the fourth conveying mechanism 6d is disposed on the image capturing device worktable 6e and is used for conveying a workpiece; the third suspension beam 6b is arranged on the image acquisition equipment workbench 6e in a sliding mode along a first direction and driven by a sixth driving assembly 6c, the industrial camera 6a is arranged on the third suspension beam 6b in a sliding mode along a second direction and driven by a seventh driving assembly 6f, and namely the length direction of the third suspension beam 6b is perpendicular to the first direction.
Preferably, the first driving assembly, the second driving assembly, the third driving assembly, the fourth driving assembly, the fifth driving assembly, the sixth driving assembly, and the seventh driving assembly (i.e., all driving assemblies in this embodiment) may directly adopt the prior art, for example, a motor is matched with a sliding table and a sliding rail to realize movement, or a motor is matched with a rack and pinion to realize movement, which can satisfy a plurality of combinations of such linear movements, and are not listed in this embodiment.
Preferably, the first conveying mechanism 3f, the second conveying mechanism 4b, the third conveying mechanism 5e, and the fourth conveying mechanism 6d (i.e., all conveying mechanisms in this embodiment) are all in a structural form of a synchronous belt assembly line, and the specific structural arrangement refers to the prior art, where the conveying direction of the synchronous belt assembly line is the circulation direction of the workpiece.
Referring to fig. 7-9, the turnover device includes a turnover device workbench 7h, a turnover belt 7f and a connecting belt 7g, the turnover device workbench 7h is provided with a first turnover belt retracting end 7b and a second turnover belt retracting end 7j, and two ends of the turnover belt 7f are respectively connected with the first turnover belt retracting end 7b and the second turnover belt retracting end 7 j; the overturning equipment workbench 7h is provided with a first connecting belt retracting end 7c and a second connecting belt retracting end 7i, and two ends of the connecting belt 7g are respectively connected with the first connecting belt retracting end 7c and the second connecting belt retracting end 7 i; the turnover belt 7f is arranged above the connecting belt 7g and is connected with the connecting belt 7g through a connecting beam 7a, and one surface of the turnover belt 7f departing from the connecting belt 7g is used for placing a workpiece needing to be turned over.
Preferably, the first and second turning belt retracting ends and the first and second connecting belt retracting ends are driven by a motor, and the turning belt or the connecting belt is retracted and released in a roller structure mode.
The turnover belt winding and unwinding device is characterized in that the first turnover belt winding and unwinding end 7b and the first connecting belt winding and unwinding end 7c are located on the same side, the second turnover belt winding and unwinding end 7j and the second connecting belt winding and unwinding end 7i are located on the same side, a workpiece is placed between the first turnover belt winding and unwinding end 7b and the second turnover belt winding and unwinding end 7j, the winding and unwinding amount and the winding and unwinding speed of the turnover belt by the first turnover belt winding and unwinding end 7b and the second connecting belt winding and unwinding end 7j are controlled, and the workpiece is turned 180 degrees towards the first turnover belt winding and unwinding end 7b or the second turnover belt winding and unwinding end 7j (the winding and unwinding amount includes the winding and unwinding amount, and the winding speed includes the winding and unwinding speed and the unwinding speed).
Tipping arrangement is still including removing stick 7d and slewing mechanism 7e, slewing mechanism 7e includes rotation axis and drive group, the rotation axis rotates and sets up on tipping arrangement workstation 7h, the drive group is connected the rotation axis and is used for driving the rotation axis to rotate, remove stick 7d set up in just be located the top in upset area 7f on the rotation axis, remove stick 7d and be used for removing the work piece on upset area 7 f. The moving bar 7d is rotatably inserted into a pocket of a workpiece (i.e., a cage), and then, the rotation is continued to move the workpiece on the inverter belt.
The driving set is preferably a motor with a speed reducer, and other rotary driving pieces can also meet the rotating function of a rotating shaft; friction exists between the turnover belt and the workpiece.
The method for turning the workpiece 180 degrees towards one side of the first turning belt receiving and releasing end 7b or the second turning belt receiving and releasing end 7j by the turning equipment is as follows:
referring to fig. 8 (the main push holder 1a is taken as a workpiece in fig. 8 for illustration), wherein the workpiece is turned over towards the second 7j side of the turning belt retracting end, the specific steps are as follows:
step A: placing the workpiece on the turning belt 7 f;
and B: controlling the first turning belt retracting end 7b and the second turning belt retracting end 7j to release the turning belt 7f, and controlling the first connecting belt retracting end 7c and the second connecting belt retracting end 7i to wind the connecting belt 7g, so that the connecting belt 7g is in a straightening state;
and C: controlling a first turning belt retracting end 7b and a first connecting belt retracting end 7c to retract a turning belt 7f and a connecting belt 7g, controlling a second turning belt retracting end 7j and a second connecting belt retracting end 7i to release the turning belt 7f and the connecting belt 7g, wherein the connecting belt 7g is in a straightening state, and the workpiece moves to one side close to the first turning belt retracting end 7 b; the winding speed of the first folding and unfolding end 7b of the turning belt is less than that of the first folding and unfolding end 7c of the connecting belt; the release rate of the second turning belt retracting end 7j is less than that of the second connecting belt retracting end 7 i;
step D: controlling the first turning belt receiving and releasing end 7b and the second turning belt receiving and releasing end 7j to release the turning belt, and controlling the first connecting belt receiving and releasing end 7c and the second connecting belt receiving and releasing end 7i to release the connecting belt, so that the workpiece is in a vertical state; the release rate of the first turning belt retracting end 7b is less than that of the second turning belt retracting end 7j, and the release rate of the first connecting belt retracting end 7c is less than that of the second connecting belt retracting end 7 i;
step E: controlling the first connecting belt winding and unwinding end 7c to wind the connecting belt, controlling the first overturning belt winding and unwinding end 7b to wind the overturning belt or not to act, and controlling the second overturning belt winding and unwinding end 7j and the second connecting belt winding and unwinding end 7i not to act so that the workpiece falls to the overturning belt on one side of the second overturning belt winding and unwinding end 7 j;
step F: the first turning belt retracting end 7b and the second turning belt retracting end 7j are controlled to wind the turning belt, the first connecting belt retracting end 7c and the second connecting belt retracting end 7i are controlled to release the connecting belt, the turning belt is in a straightened state, and the workpiece is turned 180 degrees.
Referring to fig. 9 (the main push holder 1a is taken as a workpiece in fig. 9 for illustration), wherein the workpiece is turned towards the first turning belt winding and unwinding end 7b, the specific steps are as follows:
step A': placing the workpiece on the turning belt 7 f;
step B': controlling the first turning belt retracting end 7b and the second turning belt retracting end 7j to release the turning belt 7f, and controlling the first connecting belt retracting end 7c and the second connecting belt retracting end 7i to wind the connecting belt 7g, so that the connecting belt 7g is in a straightening state;
step C': controlling the first turning belt retracting end 7b and the first connecting belt retracting end 7c to release the turning belt 7f and the connecting belt 7g, controlling the second turning belt retracting end 7j and the second connecting belt retracting end 7i to roll up the turning belt 7f and the connecting belt 7g, wherein at the moment, the connecting belt 7g is in a straightening state, and the workpiece moves to one side close to the second turning belt retracting end 7 j; wherein the release rate of the first connecting belt retracting end 7b is less than that of the first connecting belt retracting end 7 c; the winding rate of the second folding and unfolding end 7j of the turning belt is smaller than that of the second folding and unfolding end 7i of the connecting belt;
step D': controlling the first turning belt receiving and releasing end 7b and the second turning belt receiving and releasing end 7j to release the turning belt, and controlling the first connecting belt receiving and releasing end 7c and the second connecting belt receiving and releasing end 7i to release the connecting belt, so that the workpiece is in a vertical state; the release rate of the first turning belt retracting end 7b is greater than that of the second turning belt retracting end 7j, and the release rate of the first connecting belt retracting end 7c is greater than that of the second connecting belt retracting end 7 i;
a step E': controlling a second connecting belt retraction end 7i to retract the connecting belt, controlling a second overturning belt retraction end 7j to retract the overturning belt or not to act, and controlling a first overturning belt retraction end 7b and a first connecting belt retraction end 7c not to act so that the workpiece falls to the overturning belt on one side of the first overturning belt retraction end 7 b;
step F': the first turning belt retracting end 7b and the second turning belt retracting end 7j are controlled to wind the turning belt, the first connecting belt retracting end 7c and the second connecting belt retracting end 7i are controlled to release the connecting belt, the turning belt is in a straightened state, and the workpiece is turned 180 degrees.
After the step F and the step F', the position of the workpiece can be adjusted to the middle between the first and second folding and unfolding ends of the turnover belt by adjusting the turnover belt and the connecting belt.
In addition, this embodiment also provides a dye check detection method, and the dye check detection system specifically includes:
step S1: conveying the workpiece to first cleaning equipment, and cleaning a welding seam part to ensure that no obvious dirt exists on the surface of the workpiece;
step S2: conveying the workpiece to first air drying equipment, wherein the first air drying equipment dries the welding seam part by adopting heated and pressurized air; the volatilization of the cleaning agent is accelerated by heating and pressurizing air, so that the surface of the welding seam part of the workpiece is dried quickly;
step S3: conveying the workpiece to first spraying equipment, and uniformly spraying penetrant on a welding seam part in the first spraying equipment;
step S4: after 3-7 minutes of permeation (preferably 5 minutes in the embodiment), conveying the workpiece to second cleaning equipment for cleaning, and immediately ending the cleaning process when no obvious color of the penetrant exists;
step S5: conveying the workpiece to a second air drying device, conveying normal-temperature pressurized air for drying, and immediately finishing the air drying process when no obvious liquid film exists at the part to be welded; the cleaning agent is rapidly dispersed and volatilized from the welding seam part through normal-temperature pressurized air, the step is mainly used for removing the cleaning agent on the surface, meanwhile, a workpiece possibly has a gap, and a penetrating agent is arranged in the gap and cannot be removed, so normal-temperature pressurized air is used;
step S6: conveying the workpiece to second spraying equipment to spray a developer to the welding seam part;
step S7: waiting for 3-7 minutes (preferably 5 minutes in the embodiment), conveying the workpiece to an image acquisition device, and acquiring an image of the welding seam part; namely: the industrial camera 6a is moved to a position right above the weld to capture an image, and the captured image is transferred to a computer.
Step S8: conveying the workpiece to turnover equipment, turning the workpiece over 180 degrees, and repeating the steps S1-S7 to detect the other surface;
step S9: analyzing the collected images, and judging the welding seam detection result by using an image recognition method.
And after the workpiece is detected to be finished, summarizing detection results, judging the comprehensive performance of the welding seams of the workpiece, if all the detected welding seams meet the requirements, determining that the workpiece is qualified, otherwise, if one welding seam is unqualified, determining that the workpiece is unqualified.
Preferably, in both of the steps S3 and S6, the workpiece is controlled to repeatedly move in the first direction, so that the workpiece is in a vibration state; in other words, the conveying mechanism is controlled to rotate forward and backward alternately at a slow speed in steps S3 and S6, so that the workpiece is in a weak vibration state, the workpiece is in a weak vibration state in step S3 to accelerate the permeation effect of the penetrant, and the workpiece is in a weak vibration state in step S6 to accelerate the mixing of the developer and the penetrant at the position where the weld seam may exist.
In the step S6, the second sprayer of the second spraying device sprays the developer at a position 150mm-300mm away from the weld joint.
In the detection method of the embodiment, preferably, in each step, the workpiece is placed in the middle of the conveying mechanism, so that the workpiece is convenient to clean or spray.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A turnover method is characterized in that adopted turnover equipment comprises a turnover equipment workbench (7 h), a turnover belt (7 f) and a connecting belt (7 g), wherein the turnover equipment workbench (7 h) is provided with a first turnover belt receiving and releasing end (7 b) and a second turnover belt receiving and releasing end (7 j), and two ends of the turnover belt (7 f) are respectively connected with the first turnover belt receiving and releasing end (7 b) and the second turnover belt receiving and releasing end (7 j); a first connecting belt retracting end (7 c) and a second connecting belt retracting end (7 i) are arranged on the turnover equipment workbench (7 h), and two ends of the connecting belt (7 g) are respectively connected with the first connecting belt retracting end (7 c) and the second connecting belt retracting end (7 i); the overturning belt (7 f) is arranged above the connecting belt (7 g) and is connected with the connecting belt (7 g) through a connecting beam (7 a), and one surface of the overturning belt (7 f) departing from the connecting belt (7 g) is used for placing a workpiece to be overturned;
the first turnover belt folding and unfolding end (7 b) and the first connecting belt folding and unfolding end (7 c) are located on the same side, the second turnover belt folding and unfolding end (7 j) and the second connecting belt folding and unfolding end (7 i) are located on the same side, the workpiece is placed between the first turnover belt folding and unfolding end (7 b) and the second turnover belt folding and unfolding end (7 j), the folding and unfolding amount and the folding and unfolding speed of the turnover belt by the first turnover belt folding and unfolding end (7 b) and the second turnover belt folding and unfolding end (7 j) and the folding and unfolding amount and the folding and unfolding speed of the connecting belt by the first connecting belt folding and unfolding end (7 c) and the second connecting belt folding and unfolding end (7 i) are controlled, and the workpiece is turned 180-degree towards one side of the first turnover belt folding and unfolding end (7 b) or the second turnover belt folding and unfolding end (7 j);
the workpiece is turned towards one side of the second (7 j) folding and unfolding end of the turning belt, and the method comprises the following specific steps:
step A: placing the workpiece on a turning belt (7 f);
and B: controlling the first folding and unfolding end (7 b) of the turning belt and the second folding and unfolding end (7 j) of the turning belt to release the turning belt (7 f), and controlling the first folding and unfolding end (7 c) of the connecting belt and the second folding and unfolding end (7 i) of the connecting belt to roll up the connecting belt (7 g), so that the connecting belt (7 g) is in a straightening state;
and C: controlling a first turning belt retracting end (7 b) and a first connecting belt retracting end (7 c) to respectively retract a turning belt (7 f) and a connecting belt (7 g), controlling a second turning belt retracting end (7 j) and a second connecting belt retracting end (7 i) to respectively release the turning belt (7 f) and the connecting belt (7 g), and at the moment, the connecting belt (7 g) is in a straightening state, and moving the workpiece to one side close to the first turning belt retracting end (7 b);
step D: controlling the first turning belt retracting end (7 b) and the second turning belt retracting end (7 j) to release the turning belt, and controlling the first connecting belt retracting end (7 c) and the second connecting belt retracting end (7 i) to release the connecting belt, so that the workpiece is in a vertical state; the release rate of the first turning belt retracting end (7 b) is less than that of the second turning belt retracting end (7 j), and the release rate of the first connecting belt retracting end (7 c) is less than that of the second connecting belt retracting end (7 i);
step E: controlling a first connecting belt winding and unwinding end (7 c) to wind the connecting belt, controlling a first overturning belt winding and unwinding end (7 b) to wind the overturning belt or not to act, and controlling a second overturning belt winding and unwinding end (7 j) and a second connecting belt winding and unwinding end (7 i) not to act so that the workpiece is inverted to the overturning belt on one side of the second overturning belt winding and unwinding end (7 j);
step F: controlling the first turning belt winding and unwinding end (7 b) and the second turning belt winding and unwinding end (7 j) to wind the turning belt, controlling the first connecting belt winding and unwinding end (7 c) and the second connecting belt winding and unwinding end (7 i) to release the connecting belt, straightening the turning belt, and turning the workpiece 180 degrees;
the workpiece is turned towards one side of a first (7 b) folding and unfolding end of the turning belt, and the method comprises the following specific steps:
step A': placing the workpiece on a turning belt (7 f);
step B': controlling the first turning belt retracting end (7 b) and the second turning belt retracting end (7 j) to release the turning belt (7 f), and controlling the first connecting belt retracting end (7 c) and the second connecting belt retracting end (7 i) to wind the connecting belt (7 g) so that the connecting belt (7 g) is in a straightening state;
step C': controlling a first turning belt retracting end (7 b) and a first connecting belt retracting end (7 c) to release a turning belt (7 f) and a connecting belt (7 g) respectively, controlling a second turning belt retracting end (7 j) and a second connecting belt retracting end (7 i) to roll up the turning belt (7 f) and the connecting belt (7 g) respectively, wherein the connecting belt (7 g) is in a straightening state, and moving the workpiece to one side close to the second turning belt retracting end (7 j);
step D': controlling the first turning belt retracting end (7 b) and the second turning belt retracting end (7 j) to release the turning belt, and controlling the first connecting belt retracting end (7 c) and the second connecting belt retracting end (7 i) to release the connecting belt, so that the workpiece is in a vertical state; the release rate of the first turning belt retracting end (7 b) is greater than that of the second turning belt retracting end (7 j), and the release rate of the first connecting belt retracting end (7 c) is greater than that of the second connecting belt retracting end (7 i);
step E': controlling a second connecting belt retracting end (7 i) to retract the connecting belt, controlling a second overturning belt retracting end (7 j) to retract the overturning belt or not to act, and controlling a first overturning belt retracting end (7 b) and a first connecting belt retracting end (7 c) not to act so that the workpiece falls onto the overturning belt on one side of the first overturning belt retracting end (7 b);
step F': and controlling the first (7 b) and second (7 j) unwinding and unwinding ends of the turning belt to wind the turning belt, controlling the first (7 c) and second (7 i) unwinding and unwinding ends of the connecting belt to release the connecting belt, straightening the turning belt, and turning the workpiece 180 degrees.
2. A turning method according to claim 1, characterized by further comprising a moving bar (7 d) and a turning mechanism (7 e), the turning mechanism (7 e) comprising a rotation axis and a driving group, the driving group being connected to the rotation axis, the moving bar (7 d) being arranged on the rotation axis and above the turning belt (7 f), the moving bar (7 d) being used for moving the work piece on the turning belt (7 f).
3. A dye check detection method is characterized by comprising the following steps:
step S1: conveying the workpiece to first cleaning equipment, and cleaning a welding seam part to ensure that no obvious dirt exists on the surface of the workpiece;
step S2: conveying the workpiece to first air drying equipment, wherein the first air drying equipment dries the welding seam part by adopting heated and pressurized air;
step S3: conveying the workpiece to first spraying equipment, and uniformly spraying penetrant on a welding seam part in the first spraying equipment;
step S4: after 3-7 minutes of permeation, conveying the workpiece to second cleaning equipment for cleaning, and immediately ending the cleaning process when no obvious penetrant color exists;
step S5: conveying the workpiece to a second air drying device, conveying normal-temperature pressurized air for drying, and immediately finishing the air drying process when no obvious liquid film exists at the part to be welded;
step S6: conveying the workpiece to second spraying equipment to spray a developer to the welding seam part;
step S7: waiting for 3-7 minutes, conveying the workpiece to image acquisition equipment, and acquiring an image of a welding seam part;
step S8: conveying the workpiece to a turnover device, turning the workpiece over by 180 degrees by adopting the turnover method as claimed in claim 1 or 2, and repeating the steps S1-S7 to detect the other side;
step S9: analyzing the collected images, and judging the welding seam detection result by using an image recognition method.
4. The dye inspection method according to claim 3, wherein in each of said steps S3 and S6, the workpiece is controlled to be repeatedly moved in the first direction so as to be in a vibration state;
in the step S6, the developer is sprayed at the position 150mm-300mm away from the welding seam position.
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| CN202210119594.2A CN114152575B (en) | 2022-02-09 | 2022-02-09 | Overturning device, and dye-sensitized flaw detection system and detection method comprising overturning device |
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| CN202210119594.2A CN114152575B (en) | 2022-02-09 | 2022-02-09 | Overturning device, and dye-sensitized flaw detection system and detection method comprising overturning device |
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