CN114264591B - Device and method for evaluating corrosion appearance of metal standard part - Google Patents
Device and method for evaluating corrosion appearance of metal standard part Download PDFInfo
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- CN114264591B CN114264591B CN202111589817.3A CN202111589817A CN114264591B CN 114264591 B CN114264591 B CN 114264591B CN 202111589817 A CN202111589817 A CN 202111589817A CN 114264591 B CN114264591 B CN 114264591B
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Abstract
The device comprises a box body, wherein one side of the box body, which is provided with a feed inlet, is the front side, the interior of the box body is divided into an upper cavity and a lower cavity through a first partition plate, a first opening which is communicated with the upper cavity and the lower cavity is formed in the first partition plate, a first clamping hand used for clamping the head of a bolt, a storage unit used for storing a film, a clamping unit used for clamping the film to wrap the bolt rod, a marking unit used for marking on the film and a cutting unit used for cutting the film in cooperation with the clamping unit are arranged in the upper cavity. The invention can automatically complete the evaluation of corrosion damage level, the determination of the area of the corroded bolt and the identification of the area of the corroded bolt, is simple, visual and easy to count, and saves labor cost.
Description
Technical Field
The invention relates to the technical field of standard component evaluation, in particular to a device and a method for evaluating corrosion appearance of a metal standard component.
Background
The metal fastener is one of the key components commonly used in modern engineering structures, corrosion damage of the metal fastener directly affects the safety and service life of the engineering structures, and in natural environment, due to the effects of temperature and humidity, corrosive media and the like, the surface protection process of the metal standard component is easy to generate phenomena of skinning, cracking, swelling and the like, the metal standard component is further developed into serious corrosion of a metal standard component substrate, the mechanical property of the metal standard component is reduced, and the safety and the performance of the engineering structures and products are affected. Therefore, the corrosion state of each part of the metal standard part is rapidly and accurately evaluated, and research on the corrosion characteristics of the metal standard part is significant in maintaining the safety and the functional performance of the engineering structure.
At present, the appearance corrosion observation of the metal standard part mainly depends on manual observation, is influenced by human vision, experience and the like, has certain technical and subjective differences in observation results, and brings certain difficulty for accurately evaluating the appearance corrosion of the metal standard part. In addition, in the evaluation method, visual inspection or a 10X magnifying glass is generally adopted to check the appearance of the standard component after the exposure experiment, and the corrosion area occupation ratio and the corrosion characteristics of the substrate are estimated.
There is a need for an apparatus and method for visual assessment of the corrosive appearance of a metallic standard.
Disclosure of Invention
The invention aims to provide a device and a method for evaluating corrosion appearance of a metal standard part.
The invention aims at realizing the technical scheme, the device for evaluating the corrosion appearance of the metal standard part comprises a box body, wherein one side of the box body, which is provided with a feed inlet, is the front side, the box body is divided into an upper cavity and a lower cavity by a first partition plate, a first opening which is communicated with the upper cavity and the lower cavity is formed in the first partition plate, and a first clamping hand used for clamping the head part of a bolt, a storage unit used for storing a film, a clamping unit used for clamping the film to wrap the bolt rod part, a marking unit used for marking on the film and a cutting unit used for cutting the film in cooperation with the clamping unit are arranged in the upper cavity.
Preferably, the first clamping hand is mounted on the inner top wall of the upper chamber and is located above the first opening.
Preferably, the storage unit comprises a first motor arranged on the first partition board, wherein an output shaft of the first motor is directed to the top wall of the upper chamber, and a film roll shaft is fixedly connected with the first motor.
Preferably, the clamping unit comprises a chain, the chain is rotatably arranged on the top wall of the upper chamber through a plurality of chain wheels, the chain is positioned above the storage unit, the movement track of the chain surrounds the first clamping hand, a plurality of connecting columns are uniformly and fixedly connected on the chain, the other ends of the connecting columns point to the storage unit and are fixedly connected with a mounting frame, a first sleeve and a second sleeve are rotatably sleeved on the mounting frame, a deflector rod is fixedly connected on one side, close to the top wall of the upper chamber, of the first sleeve and the second sleeve, a left clamping plate and a right clamping plate which can be matched with a clamping film are fixedly connected on the other side, close to the storage unit, of the first sleeve and the second sleeve, torsion springs are fixedly connected on the first sleeve and the second sleeve, and the other ends of the torsion springs are fixedly connected with the mounting frame;
the top wall in the upper chamber is fixedly connected with a top block for pulling out two deflector rods, and the top block is positioned on the action track of the chain and above the storage unit.
Preferably, the cutting unit is located between the first clamping hand and the storage unit and below the clamping unit;
the cutting unit comprises two vertical plates perpendicular to the ground, the two vertical plates are respectively positioned at the left side and the right side of the first clamping hand, square grooves are formed in one sides, close to the first clamping hand, of the two vertical plates, square columns are slidably positioned in the square grooves, the sliding directions of the square columns are all directed towards the first clamping hand, one ends, directed towards the first clamping hand, of the square columns are fixedly connected with pressing plates, springs are arranged in the square grooves, one ends of the springs are contacted with the bottoms of the square grooves, the other ends of the springs are contacted with the square columns, blades are fixedly connected to one sides, close to the first clamping hand, of the vertical plates, and the distance between the blades and the first clamping hand is larger than that between the pressing plates and the first clamping hand;
the cutting unit is characterized by further comprising a first threaded rod and a first sliding rod, wherein the first threaded rod and the first sliding rod are arranged in parallel and are rotatably arranged on the left inner side wall and the right inner side wall of the upper cavity, a second motor is further arranged in the upper cavity, an output shaft of the second motor is fixedly connected with the first threaded rod, two vertical plates are slidably sleeved on the first sliding rod, the two vertical plates are sleeved on the first threaded rod and are in threaded connection with the first threaded rod, and the movement directions of the two vertical plates on the first threaded rod are opposite.
Preferably, the marking unit includes a second hand mounted on the top wall of the inner side of the upper chamber above the first opening, and a marking pen for marking the film and an image pickup element for recognizing rust are mounted on the second hand.
Preferably, a third clamping hand for clamping the bolt rod part is arranged on the inner bottom surface of the lower chamber, the third clamping hand is located below the first opening and corresponds to the first clamping hand, a storage table for placing the film cover is further arranged on the inner bottom surface of the lower chamber, and a fourth clamping hand for covering the film cover on the bolt head part is further arranged on the side wall of the lower chamber.
A method for evaluating corrosion appearance of a metal standard, which is characterized by comprising the following specific steps:
1) Dividing the area: dividing a metal standard part to be evaluated into a head exposed area, a head connecting area, a polished rod-thread transition area and a thread area;
2) And (3) data acquisition: respectively collecting corrosion area data and corrosion damage type data of a head exposed area, a head under-head connecting area, a polished rod-thread transition area and a thread area;
3) Constructing an evaluation model: constructing an evaluation model comprising an etching area evaluation unit and an etching damage type evaluation unit, wherein the etching area evaluation unit is divided into 10 grades according to the etching area, the number is 0-10, the etching damage type evaluation unit is divided into 10 types according to the type, and the letters are A-J;
4) Appearance evaluation: and inputting the acquired corrosion area and the acquired image into an evaluation model, respectively evaluating the corrosion grade and the corrosion area of each data acquisition area, and representing the corrosion grade by the number of the corrosion area and the appearance evaluation grade formed by letters of the corrosion type.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. the invention can automatically complete the evaluation of corrosion damage level, the determination of the area of the corroded bolt and the identification of the area of the corroded bolt, is simple, visual and easy to count, and saves labor cost.
2. The left clamping plate and the right clamping plate can bypass the first clamping hand along the movement track of the chain, the film is stretched on the bolt rod part when returning, and then the film is matched with the pressing plate of the cutting unit, so that the circumference outer wall of the bolt rod part can be wrapped by the film, the surface area measurement and the rust area measurement are convenient, the pressing and cutting actions of the cutting unit are consistent, and the structure is simple.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof.
Drawings
The drawings of the present invention are described below.
Fig. 1 is an overall schematic of the present invention.
Fig. 2 is a schematic diagram of the case of the present invention.
Fig. 3 is a schematic view of a clamping unit according to the present invention.
Fig. 4 is a schematic diagram of a top block of the present invention.
Fig. 5 is a schematic view of the left and right clamping plates of the present invention.
Fig. 6 is a schematic view of a cutting unit according to the present invention.
FIG. 7 is a schematic view of a platen of the present invention.
FIG. 8 is a graph of corrosion grade criteria for the present invention.
FIG. 9 is a standard chart of the type of corrosion damage of the present invention.
FIG. 10 is a drawing showing the division of the corrosion area of a metal standard according to the present invention.
In the figure: 1. a case; 2. a feed inlet; 3. a first separator; 4. an upper chamber; 5. a lower chamber; 6. a first opening; 7. a first grip; 8. a first motor; 9. film roll shaft; 10. a chain; 11. a sprocket; 12. a connecting column; 13. a mounting frame; 14. a first sleeve; 15. a second sleeve; 16. a deflector rod; 17. a left clamping plate; 18. a right clamping plate; 19. a torsion spring; 20. a top block; 21. a vertical plate; 22. a square groove; 23. square columns; 24. a pressing plate; 25. a spring; 26. a blade; 27. a first threaded rod; 28. a first slide bar; 29. a second clamping hand; 30. an image pickup element; 31. a marker pen; 32. a third grip; 33. a storage station; 34. a fourth grip; 35. a second motor; 36. a head exposed region; 37. an under-head connection region; 38. a polish rod region; 39. a polish rod-thread transition zone; 40. a threaded region.
Detailed Description
The invention is further described below with reference to the drawings and examples.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
As shown in fig. 1, fig. 2, fig. 8, fig. 9 and fig. 10, a device for evaluating corrosion appearance of a metal standard component comprises a box body 1, wherein one side of the box body 1 provided with a feed inlet 2 is a front side, the interior of the box body 1 is divided into an upper cavity 4 and a lower cavity 5 through a first partition plate 3, a first opening 6 which is communicated with the upper cavity 4 and the lower cavity 5 is formed in the first partition plate 3, a first clamping hand 7 for clamping the head of a bolt, a storage unit for storing a film, a clamping unit for clamping the film to wrap the bolt rod part, a marking unit for marking on the film and a cutting unit for cutting the film in cooperation with the clamping unit are arranged in the upper cavity 4.
In the embodiment, the bolt is divided into a head exposed area, a head connecting area, a polish rod-thread transition area and a thread area;
when the appearance of a rusted bolt is required to be evaluated, a feed port is opened, the rusted bolt is placed in a box body, the head of the bolt is clamped by a first clamp, a connecting area under the head, a polished rod area, a polished rod-thread transition area and a thread area are exposed, a marking unit identifies the corrosion damage type of the area, a transparent film is clamped by a clamping unit to wrap the whole surface of the bolt except the head area, the film is fixed by a cutting unit in a folding way, the marking unit marks the rusted position and the total area of the connecting area under the head of the bolt, the polished rod area, the polished rod-thread transition area and the thread area on the film, after marking is finished, the cutting unit cuts again, the cut film drops, the feed port is opened to take out the film, the film is the surface area of the screw, and the rusted total area and the rusted degree can be visually seen according to the marked place;
the invention can automatically complete the evaluation of corrosion damage level, the determination of the area of the corroded bolt and the identification of the area of the corroded bolt, is simple, visual and easy to count, and saves labor cost.
As shown in fig. 1 to 2, the first clamping hand 7 is mounted on the inner top wall of the upper chamber 4 and is located above the first opening 6.
In this embodiment, the first clamp can clamp the bolt to match the marking unit for marking, if the surface of the screw is rusted seriously, the transparent film is covered inaccurately, or when the marking is inconvenient, the first clamp can rotate by an angle to enable the other surface to rotate to face the marking unit, marking is carried out again, and then a plurality of films are comprehensively evaluated.
As shown in fig. 2, the storage unit includes a first motor 8 mounted on the first partition board 3, and an output shaft of the first motor 8 is directed to a top wall of the upper chamber 4 and is fixedly connected with a film roll shaft 9.
In this embodiment, the first motor is driven to pay out or retract the transparent film in cooperation with the holding unit.
As shown in fig. 3 to 5, the clamping unit comprises a chain 10, the chain 10 is rotatably mounted on the top wall of the upper chamber 4 through a plurality of chain wheels 11, the chain 10 is positioned above the storage unit, the movement track of the chain 10 surrounds the first clamping hand 7, a plurality of connecting columns 12 are uniformly fixedly connected on the chain 10, the other ends of the connecting columns 12 point to the storage unit and are fixedly connected with a mounting frame 13, a first sleeve 14 and a second sleeve 15 are rotatably sleeved on the mounting frame 13, a deflector rod 16 is fixedly connected on one side, close to the top wall of the upper chamber 4, of the first sleeve 14 and the second sleeve 15, a left clamping plate 17 and a right clamping plate 18 which can be matched with a clamping film are fixedly connected on the other side, close to the storage unit, of the first sleeve 14 and the second sleeve 15, a torsion spring 19 is fixedly connected on the other ends of the torsion spring 19, and the mounting frame 13;
the top wall in the upper chamber 4 is fixedly connected with a top block 20 for pulling out the two deflector rods 16, and the top block 20 is positioned on the action track of the chain 10 and above the storage unit.
In the embodiment, in the initial state, due to the action of torsion springs, all the left clamping plates and the right clamping plates are in a folding state, when a first clamping hand clamps a bolt to wrap a film, a group of left clamping plates and right clamping plates which clamp the forefront end of the film at the moment follow the movement track of a chain, the film is pulled to move through the first clamping hand, when the film bypasses the back of the first clamping hand and moves back, the film is stretched on the bolt rod part, the chain pauses to move, a cutting unit extrudes and folds the unfolded position of the film, a marking unit marks the rusted position of the film, and the cutting unit cuts the film with the mark;
when the cutting unit is folded, the foremost end of the film is clamped by the first group of left clamping plates and the right clamping plates and is wound around the first clamping hand, the middle section of the film is clamped by the second group of left clamping plates and the right clamping plates and is not wound around the first clamping hand, the third group of left clamping plates and the right clamping plates are kept in an open state, after the cutting unit is cut, the film is changed into three sections, the rear section is still connected to the film roll shaft, the middle section is provided with a corrosion mark which is made and falls off, one foremost end is used as waste leftover materials, the first group of left clamping plates and the right clamping plates which originally clamp the foremost end of the film are still used for clamping the waste leftover materials, the second group of left clamping plates and the right clamping plates which originally clamp the middle section of the film are changed into new foremost ends, and the third group of left clamping plates and the right clamping plates are folded to clamp the film into new middle sections;
the chain continues to move, and first group left splint and right splint move to the storage unit top, and the kicking block dials two driving levers and dials, drives first sleeve and second sleeve and rotates, and left splint and right splint open, and slitter edge angle material drops, and left splint and right splint move to the film top of pulling out, and when the driving lever breaks away from the kicking block, the torsional spring resets left splint and right splint, and the new film middle section position of clamping is held to multiunit left splint and right splint centre gripping in turn, cooperates the cutting unit cutting in place of place ahead.
As shown in fig. 6 to 7, the cutting unit is located between the first grip and the storage unit and below the grip unit;
the cutting unit comprises two vertical plates 21 perpendicular to the ground, the two vertical plates 21 are respectively positioned at the left side and the right side of the first clamping hand 7, square grooves 22 are respectively formed in one sides, close to the first clamping hand 7, of the two vertical plates 21, square columns 23 are slidably positioned in the square grooves 22, the sliding directions of the square columns are all directed towards the first clamping hand 7, one ends, directed towards the first clamping hand 7, of the square columns 23 are fixedly connected with pressing plates 24, springs 25 are arranged in the square grooves 22, one ends of the springs 25 are contacted with the bottoms of the square grooves 22, the other ends of the springs are contacted with the square columns 23, blades 26 are fixedly connected to one sides, close to the first clamping hand 7, of the vertical plates 21, and the distance between the blades 26 and the first clamping hand 7 is greater than the distance between the pressing plates 24 and the first clamping hand 7;
the cutting unit is characterized by further comprising a first threaded rod 27 and a first sliding rod 28, wherein the first threaded rod 27 and the first sliding rod 28 are arranged in parallel, are rotatably arranged on the left inner side wall and the right inner side wall of the upper cavity 4, a second motor 35 is further arranged in the upper cavity 4, an output shaft of the second motor 35 is fixedly connected with the first threaded rod 27, two vertical plates 21 are slidably sleeved on the first sliding rod 28, the two vertical plates 21 are sleeved on the first threaded rod 27, are in threaded connection with the first threaded rod 27, and move in opposite directions on the first threaded rod 27.
In the embodiment, when the second motor is started, the first threaded rod is driven to drive the two vertical plates to be folded, the pressing plates at the front ends of the two vertical plates are pressed together, and the film bypassing the tested bolt and the film not bypassing the tested bolt are folded, so that the film is more attached to the surface of the bolt rod part, and the marking unit can work conveniently;
after the marking work is finished, the first threaded rod continues to move, the springs are compressed, the two pressing plates are attached and do not act any more, but the square column slides in the square groove, so that the vertical plate can be folded continuously, and the blades on the two sides are folded to cut the film.
As shown in fig. 1 to 2, the marking unit includes a second grip 29, the second grip 29 is mounted on the inner top wall of the upper chamber 4 above the first opening 6, and an image pickup element 30 for recognizing rust and a marking pen 31 for marking on a film are mounted on the second grip 29.
In this embodiment, the camera element can identify the surface rust mark and the corrosion damage type of the exposed area of the head of the bolt, the under-head connecting area, the polish rod-thread transition area and the thread area, and the second clamp drives the marking pen to mark the rust position and the area.
As shown in fig. 1 to 2, a third clamping hand 32 for clamping the bolt rod portion is disposed on the inner bottom surface of the lower chamber 5, the third clamping hand 32 is located below the first opening 6 and corresponds to the first clamping hand 7, a storage table 33 for placing the film cover is further disposed on the inner bottom surface of the lower chamber 5, and a fourth clamping hand 34 for covering the film cover onto the bolt head portion is further disposed on the side wall of the lower chamber 5.
In this embodiment, the transparent film is made into a cap shape identical to the shape of the bolt head in advance and placed on the storage table, the first hand grip places the bolt on the third hand grip at the first opening after the bolt shank evaluation is completed, the third hand grip grips the bolt shank to expose the bolt head area, the fourth hand grip places the film cap on the bolt head, the second hand grip descends into the lower chamber from the first opening, the exposed area of the bolt head is marked with rust marks via the cap made of the transparent film, after the marking is completed, the feed inlet is opened, and the worker takes out all the films and the cap for evaluation.
A method for evaluating corrosion appearance of a metal standard, which is characterized by comprising the following specific steps:
1) Dividing the area: dividing a metal standard part to be evaluated into a head exposed area, a head connecting area, a polished rod-thread transition area and a thread area;
2) And (3) data acquisition: respectively collecting corrosion area data and corrosion damage type data of a head exposed area, a head under-head connecting area, a polished rod-thread transition area and a thread area;
3) Constructing an evaluation model: constructing an evaluation model comprising an etching area evaluation unit and an etching damage type evaluation unit, wherein the etching area evaluation unit is divided into 10 grades according to the etching area, the number is 0-10, the etching damage type evaluation unit is divided into 10 types according to the type, and the letters are A-J;
4) Appearance evaluation: and inputting the acquired corrosion area and the acquired image into an evaluation model, respectively evaluating the corrosion grade and the corrosion area of each data acquisition area, and representing the corrosion grade by the number of the corrosion area and the appearance evaluation grade formed by letters of the corrosion type.
In this embodiment, the bolt is divided into a head exposed region, a head under connection region, a polish rod-thread transition region, and a thread region: the head exposed area comprises a bolt head; the under-head connecting area comprises an under-head rolling part and an under-head polished rod Xmm, and X is 1/15 of the length of the bolt; the polished rod area is from the Xmm position of the polished rod below the head to the reduced section position of the polished rod; the polished rod-thread transition zone is the area from the reduced section of the polished rod to the front of the thread zone; the threaded zone is the remaining threaded portion.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (5)
1. The device for evaluating the corrosion appearance of the metal standard part is characterized by comprising a box body (1), wherein one side of the box body (1) provided with a feed inlet (2) is the front side, the interior of the box body (1) is divided into an upper cavity (4) and a lower cavity (5) through a first partition board (3), a first opening (6) which is communicated with the upper cavity (4) and the lower cavity (5) is formed in the first partition board (3), and a first clamping hand (7) used for clamping the head of a bolt, a storage unit used for storing a film, a clamping unit used for clamping the film to wrap the bolt rod part, a marking unit used for marking on the film and a cutting unit used for cutting the film in cooperation with the clamping unit are arranged in the upper cavity (4);
the first clamping hand (7) is arranged on the top wall of the inner side of the upper cavity (4) and is positioned above the first opening (6);
the marking unit comprises a second clamping hand (29), the second clamping hand (29) is arranged on the top wall of the inner side of the upper cavity (4) and is positioned above the first opening (6), and an imaging element (30) capable of identifying rust and a marking pen (31) for marking on the film are arranged on the second clamping hand (29);
the novel film cover is characterized in that a third clamping hand (32) used for clamping the bolt rod part is arranged on the inner bottom surface of the lower cavity (5), the third clamping hand (32) is located below the first opening (6) and corresponds to the first clamping hand (7), a storage table (33) used for placing the film cover is further arranged on the inner bottom surface of the lower cavity (5), and a fourth clamping hand (34) used for covering the film cover on the bolt head is further arranged on the side wall of the lower cavity (5).
2. A device for evaluating the corrosive appearance of a metal standard according to claim 1, characterized in that said storage unit comprises a first motor (8) mounted on a first partition (3), the output shaft of the first motor (8) being directed towards the top wall of the upper chamber (4) and being fixedly connected to a film roll shaft (9).
3. The device for evaluating the corrosion appearance of the metal standard component according to claim 1, wherein the clamping unit comprises a chain (10), the chain (10) is rotatably arranged on the top wall of the upper chamber (4) through a plurality of chain wheels (11), the chain (10) is positioned above the storage unit, the first clamping hand (7) is surrounded by the movement track of the chain (10), a plurality of connecting columns (12) are uniformly fixedly connected on the chain (10), the other ends of the connecting columns (12) point to the storage unit and are fixedly connected with a mounting frame (13), a first sleeve (14) and a second sleeve (15) are rotatably sleeved on the mounting frame (13), a deflector rod (16) is fixedly connected on one side, close to the top wall of the upper chamber (4), of the first sleeve (14) and the second sleeve (15), a left clamping plate (17) and a right clamping plate (18) which can be matched with a clamping film are fixedly connected on the other side, and a torsion spring (19) is fixedly connected on the other ends of the first sleeve (14) and the second sleeve (15);
the top wall in the upper chamber (4) is fixedly connected with a top block (20) for pulling out the two deflector rods (16), and the top block (20) is positioned on the action track of the chain (10) and above the storage unit.
4. The apparatus for corrosion appearance evaluation of a metal standard according to claim 1, wherein the cutting unit is located between the first grip and the storage unit and below the grip unit;
the cutting unit comprises two vertical plates (21) perpendicular to the ground, the two vertical plates (21) are respectively positioned at the left side and the right side of the first clamping hand (7), square grooves (22) are respectively formed in one side, close to the first clamping hand (7), of the two vertical plates (21), square columns (23) are slidably positioned in the square grooves (22), the sliding directions of the square columns are all pointed to the first clamping hand (7), one ends, pointed to the first clamping hand (7), of the square columns (23) are fixedly connected with pressing plates (24), springs (25) are arranged in the square grooves (22), one ends of the springs (25) are in contact with the bottoms of the square grooves (22), the other ends of the springs are in contact with the square columns (23), blades (26) are fixedly connected to one sides, close to the first clamping hand (7), of the vertical plates (21), and the distance between the blades (26) and the first clamping hand (7) is larger than that between the pressing plates (24) and the first clamping hand (7).
The cutting unit is characterized by further comprising a first threaded rod (27) and a first sliding rod (28), wherein the first threaded rod (27) and the first sliding rod (28) are arranged in parallel, are rotatably arranged on the left inner side wall and the right inner side wall of the upper cavity (4), a second motor (35) is further arranged in the upper cavity (4), an output shaft of the second motor (35) is fixedly connected with the first threaded rod (27), two vertical plates (21) are slidably sleeved on the first sliding rod (28), the two vertical plates (21) are sleeved on the first threaded rod (27), and are in threaded connection with the first threaded rod (27), and the moving directions of the two vertical plates (21) on the first threaded rod (27) are opposite.
5. A method for evaluating the corrosive appearance of a metal standard using the apparatus of claim 1, wherein the method comprises the steps of:
1) Dividing the area: dividing a metal standard part to be evaluated into a head exposed area (36), a head connecting area (37), a polished rod area (38), a polished rod-thread transition area (39) and a thread area (40), wherein each area can be cut according to the actual structure of a sample;
2) And (3) data acquisition: respectively collecting corrosion area data and corrosion damage type data of a head exposed area, a head under-head connecting area, a polished rod-thread transition area and a thread area;
3) Constructing an evaluation model: constructing an evaluation model comprising an etching area evaluation unit and an etching damage type evaluation unit, wherein the etching area evaluation unit is divided into 10 grades according to the etching area, the number is 0-10, the etching damage type evaluation unit is divided into 10 types according to the type, and the letters are A-J;
4) Appearance evaluation: and inputting the acquired corrosion area and the acquired image into an evaluation model, respectively evaluating the corrosion grade and the corrosion area of each data acquisition area, and representing the corrosion grade by the number of the corrosion area and the appearance evaluation grade formed by letters of the corrosion type.
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| CN202111589817.3A CN114264591B (en) | 2021-12-23 | 2021-12-23 | Device and method for evaluating corrosion appearance of metal standard part |
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| CN202111589817.3A CN114264591B (en) | 2021-12-23 | 2021-12-23 | Device and method for evaluating corrosion appearance of metal standard part |
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