CN217277928U - Part surface defect visual inspection device - Google Patents
Part surface defect visual inspection device Download PDFInfo
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- CN217277928U CN217277928U CN202220389152.5U CN202220389152U CN217277928U CN 217277928 U CN217277928 U CN 217277928U CN 202220389152 U CN202220389152 U CN 202220389152U CN 217277928 U CN217277928 U CN 217277928U
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- 230000007547 defect Effects 0.000 title claims abstract description 26
- 238000011179 visual inspection Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 46
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- 230000005540 biological transmission Effects 0.000 claims abstract description 14
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- 238000012360 testing method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
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Abstract
The utility model discloses a visual inspection device for surface defects of parts, which comprises a bottom plate, wherein frames are arranged at two ends of the bottom plate, and a detection part is arranged between the two frames; the detection part comprises a slide guide assembly arranged between the two frames, and the slide guide assembly is provided with a detection assembly; one end of the sliding guide component is connected with a translation motor in a transmission way; two ends of the bottom plate are respectively provided with an upright post, the upright posts are connected with lifting blocks in a sliding manner, one opposite sides of the two lifting blocks are rotatably connected with clamping parts, and the clamping parts and the detection assembly are arranged in a vertically corresponding manner; the top surface of any elevator block is fixedly provided with a rotating motor, and the output end of the rotating motor is in transmission connection with the clamping part. The utility model discloses simple structure is compact, degree of automation is high, can once only detect each surface of part automatically, and detection speed is fast, and the testing result is accurate, need not artifical clamping of multiple and upset, improves detection efficiency, has reduced the omission of artifical upset, has improved the detection quality of part.
Description
Technical Field
The utility model relates to a visual inspection technical field especially relates to a part surface defect visual inspection device.
Background
The visual detection means that a machine vision product converts a shot target into an image signal, transmits the image signal to a special image processing system, and converts the image signal into a digital signal according to information such as pixel distribution, brightness, color and the like; the image system performs various operations on the signals to extract the characteristics of the target, and then controls the on-site equipment action according to the judgment result, so that the method is a valuable mechanism for production, assembly or packaging; the method is characterized in that the flexibility and the automation degree of production are improved, and the method is suitable for dangerous working environments which are not suitable for manual operation or occasions where manual vision is difficult to meet requirements; meanwhile, in the process of mass industrial production, the efficiency of checking the product quality by using manual vision is low, the precision is not high, and the production efficiency and the automation degree of production can be greatly improved by using a machine vision detection method; and the machine vision is easy to realize information integration, and is a basic technology for realizing computer integrated manufacturing.
However, in the prior art, the scanning of the surface defects of the parts cannot be fast and convenient, and the parts need to be manually fixed and turned when being scanned, so that the surface defect detection efficiency of the parts is influenced, the phenomenon of detection omission easily occurs, and the detection result of the parts is influenced. Therefore, a visual inspection apparatus for surface defects of parts is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a part surface defect visual inspection device to solve the problem that above-mentioned prior art exists.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a visual inspection device for surface defects of parts, which comprises a bottom plate, wherein frames are arranged at two ends of the bottom plate, and a detection part is arranged between the two frames;
the detection part comprises a guide sliding component arranged between the two frames, and the guide sliding component is provided with a detection component; one end of the sliding guide assembly is connected with a translation motor in a transmission manner;
two ends of the bottom plate are respectively provided with an upright post, the upright posts are connected with lifting blocks in a sliding manner, one opposite sides of the two lifting blocks are rotatably connected with clamping parts, and the clamping parts and the detection assembly are arranged in an up-and-down corresponding manner;
and a rotating motor is fixedly mounted on the top surface of any one of the lifting blocks, and the output end of the rotating motor is in transmission connection with the clamping part.
Preferably, the detection assembly comprises a sliding block in sliding connection with the guide sliding assembly, a processing module is fixedly mounted at the top end of the sliding block, a camera module is fixedly mounted at the bottom end of the sliding block, and the camera module is electrically connected with the processing module.
Preferably, the sliding guide assembly comprises a screw, the screw is rotationally connected with the two frames, one end of the screw, facing the translation motor, penetrates through the frames and then is in transmission connection with the translation motor, and the screw is in threaded connection with the sliding block; two guide sliding rods are symmetrically arranged on two sides of the screw rod, two ends of each guide sliding rod are fixedly connected with the two frames respectively, and the guide sliding rods are connected with the sliding blocks in a sliding mode.
Preferably, one sides of the two frames opposite to each other are fixedly connected with supporting plates respectively, and the guide sliding rod is fixedly connected with the supporting plates; being close to translation motor the frame rigid coupling has first mounting panel, translation motor fixed mounting be in on the first mounting panel.
Preferably, the sliding block is provided with a sliding hole matched with the guide sliding rod, a plurality of balls are arranged in the sliding hole in an array mode, and the balls are in rolling contact with the outer wall of the guide sliding rod.
Preferably, the clamping part comprises two clamping components which are symmetrically arranged, and the two clamping components are arranged corresponding to the camera module up and down; the clamping assembly comprises a base which is rotatably connected with opposite surfaces of the two lifting blocks, and a fixed end of a telescopic rod is fixedly arranged on the base; the rotating motor is fixedly installed at the top end of any one of the lifting blocks, and the output end of the rotating motor is in transmission connection with the base.
Preferably, the movable end of the telescopic rod is fixedly provided with a clamping plate, and the clamping plate is matched with the part to be detected.
Preferably, a second mounting plate is fixedly connected to the top end of the lifting block, and the rotating motor is fixedly mounted on the second mounting plate; the output end of the rotating motor extends into the lifting block and is rotationally connected with the lifting block; the output end of the rotating motor is fixedly connected with a driving bevel gear, the driving bevel gear is connected with a driven bevel gear in a meshed mode, and the driven bevel gear is fixedly connected with the base.
The utility model discloses a following technological effect: the utility model discloses a visual detection device for surface defects of parts, wherein frames are arranged at two sides of a base, a guide sliding component is arranged between the frames, and a detection component is arranged on the guide sliding component in a sliding way and is used for detecting each position of the surface of the part without dead angles; a clamping part is arranged below the detection assembly, a part to be detected is clamped, fixed and lifted, and then is driven to rotate by a rotating motor, so that each end face of the part can be detected conveniently, and the detection is more thorough; the clamping part is arranged on the symmetrical lifting blocks, can drive the part to be detected to rise and fall, and is convenient for the parts of various sizes to turn over. The utility model discloses simple structure is compact, degree of automation is high, can once only detect each surface of part automatically, and detection speed is fast, and the testing result is accurate, need not artifical clamping of multiple and upset, improves detection efficiency, has reduced the omission of artifical upset, has improved the detection quality of part.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is an axial view of the visual inspection device for surface defects of parts of the present invention;
FIG. 2 is a front view of the visual inspection device for surface defects of parts of the present invention;
FIG. 3 is a schematic view of the structure of the clamping assembly of the present invention;
FIG. 4 is a schematic structural view of the detecting assembly of the present invention;
FIG. 5 is an enlarged view of a portion of A in FIG. 4;
wherein, 1, a bottom plate; 2. a frame; 3. a translation motor; 4. a column; 5. a lifting block; 6. A rotating electric machine; 7. a slider; 8. a processing module; 9. a camera module; 10. a screw; 11. a guide slide bar; 12. a support plate; 13. a first mounting plate; 14. a slide hole; 15. a ball bearing; 16. a base; 17. a telescopic rod; 18. a clamping plate; 19. a second mounting plate; 20. a drive bevel gear; 21. A driven bevel gear; 22. and a bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the following detailed description.
Referring to fig. 1-5, the utility model provides a visual inspection device for surface defects of parts,
the detection device comprises a bottom plate 1, frames 2 are arranged at two ends of the bottom plate 1, and a detection part is arranged between the two frames 2;
the detection part comprises a guide sliding component arranged between the two frames 2, and the guide sliding component is provided with a detection component; one end of the slide guiding component is connected with a translation motor 3 in a transmission way;
two ends of the bottom plate 1 are respectively provided with an upright post 4, the upright posts 4 are connected with lifting blocks 5 in a sliding manner, one opposite side of each of the two lifting blocks 5 is rotatably connected with a clamping part, and the clamping parts and the detection assemblies are arranged in an up-and-down corresponding manner;
the top surface of any elevator block 5 is fixedly provided with a rotating motor 6, and the output end of the rotating motor 6 is in transmission connection with the clamping part.
The utility model discloses a visual detection device for surface defects of parts, wherein frames 2 are arranged at two sides of a base 16, a slide guide component is arranged between the frames 2, and a detection component is arranged on the slide guide component in a sliding way and is used for detecting each position of the surface of the part without dead angles; a clamping part is arranged below the detection assembly, a part to be detected is clamped and fixed and then lifted, and then the part to be detected is driven to rotate by a rotating motor 6, so that each end face of the part can be detected conveniently, and the detection is more thorough; the clamping part is arranged on the symmetrical lifting blocks 5, and can drive the part to be detected to rise and fall, so that the parts of various sizes can be turned over conveniently.
The further connection mode of the upright post 4 and the lifting block 5 refers to a rodless cylinder structure in the prior art, and the lifting block 5 can be quickly and sensitively controlled to be lifted to a preset position, which is the prior art; the two lifting blocks 5 are controlled in a linkage manner to ensure synchronous lifting.
Further optimize the scheme, the detection assembly includes and leads smooth subassembly sliding connection's slider 7, and the top fixed mounting of slider 7 has processing module 8, and the bottom fixed mounting of slider 7 has camera module 9, camera module 9 and processing module 8 electric connection. The camera module 9 is used for shooting a part to be detected and transmitting a shot image to the processing module 8, and the processing module 8 is used for analyzing and processing the shot image, finding out the defects on the surface of the part and giving an alarm; the main structure of the camera module 9 in the application is a high-speed camera, which can automatically focus and shoot; the processing module 8 mainly comprises an image memory and an image processor, wherein the image memory is electrically connected with the camera module 9, an image shot by the camera module 9 is stored and transmitted to the image processor, and the image processor processes the shot image and compares the processed image with the surface of a qualified part to find out the defects on the surface of the part. The high-speed camera, the image memory and the image processor are all detection components commonly used in the production line, the working principle and the working process of the high-speed camera, the image memory and the image processor are the prior art, and the details are not repeated here.
According to a further optimized scheme, the sliding guide assembly comprises a screw rod 10, the screw rod 10 is rotatably connected with the two frames 2, one end, facing the translation motor 3, of the screw rod 10 penetrates through the frames 2 and then is in transmission connection with the translation motor 3, and the screw rod 10 is in threaded connection with the sliding block 7; two guide slide rods 11 are symmetrically arranged on two sides of the screw rod 10, two ends of each guide slide rod 11 are fixedly connected with the two frames 2 respectively, and the guide slide rods 11 are connected with the slide blocks 7 in a sliding mode. The translation motor 3 drives the screw rod 10 to rotate, the screw rod 10 drives the sliding block 7 in threaded connection with the screw rod 10 to translate along the direction of the screw rod 10, and the camera module 9 below the sliding block 7 is driven to repeatedly move, so that images on the surface of a part can be comprehensively shot; the guide slide rods 11 on the two sides of the screw 10 are used for limiting the slide block 7, so that the slide block 7 is prevented from rotating together with the screw 10 and not translating, and the stability of the camera module 9 is ensured.
In a further optimized scheme, one sides of the two frames 2 opposite to each other are fixedly connected with a support plate 12 respectively, and the slide guide rods 11 are fixedly connected with the support plates 12; a first mounting plate 13 is fixedly connected to the frame 2 close to the translation motor 3, and the translation motor 3 is fixedly mounted on the first mounting plate 13. The support plate 12 is used for installing and fixing the two guide slide rods 11, so that the guide slide rods 11 are convenient to install and detach, and later maintenance is convenient; the first mounting plate 13 is used for fixedly mounting the translation motor 3, and installation and maintenance of the translation motor 3 are facilitated.
According to the further optimized scheme, a sliding hole 14 matched with the guide sliding rod 11 is formed in the sliding block 7, a plurality of balls 15 are arranged in the sliding hole 14 in an array mode, and the balls 15 are in rolling contact with the outer wall of the guide sliding rod 11. The ball 15 in the sliding hole 14 converts the sliding friction between the sliding hole 14 and the sliding guide rod 11 into rolling friction, so that the friction force between the sliding block 7 and the sliding guide rod 11 is reduced, the sliding block 7 moves more smoothly under the driving of the translation motor 3, and the response is quicker; meanwhile, the friction loss between the guide slide rod 11 and the slide block 7 is reduced, and the service life is prolonged.
According to a further optimized scheme, the clamping part comprises two clamping components which are symmetrically arranged, and the two clamping components are arranged up and down correspondingly to the camera module 9; the clamping assembly comprises a base 16 which is rotatably connected with the opposite surfaces of the two lifting blocks 5, and the fixed end of a telescopic rod 17 is fixedly arranged on the base 16; the rotating motor 6 is fixedly arranged at the top end of any lifting block 5, and the output end of the rotating motor 6 is in transmission connection with the base 16. The two clamping components clamp the part to be detected in the middle for fixing; the two telescopic rods 17 are extended or shortened to complete the clamping and the loosening of parts; the part clamping rear lifting block 5 is lifted on the upright post 4 to drive the part to be lifted together, and meanwhile, the rotating motor 6 drives the base 16 to rotate, so that the part rotates along with the base, and each end face of the part arranged on the shooting assembly is convenient to shoot.
Further optimizing scheme, the expansion end fixed mounting of telescopic link 17 has grip block 18, and two grip blocks 18 and wait to detect the part phase-match. The clamping plate 18 and the telescopic rod 17 are fixedly installed, the appropriate clamping plate 18 can be selected according to the shape and the material of the part to be detected, and the stability of clamping the part is improved.
According to the further optimized scheme, the top end of the lifting block 5 is fixedly connected with a second mounting plate 19, and the rotating motor 6 is fixedly mounted on the second mounting plate 19; the output end of the rotating motor 6 extends into the lifting block 5 and is rotationally connected with the lifting block 5; the output end of the rotating motor 6 is fixedly connected with a driving bevel gear 20, the driving bevel gear 20 is in meshed connection with a driven bevel gear 21, and the driven bevel gear 21 is fixedly connected with the base 16. The rotating motor 6 drives the base 16 to rotate through the meshed driving bevel gear 20 and the meshed driven bevel gear 21, the base 16 drives the telescopic rods 17 to rotate, and the parts are clamped between the two telescopic rods 17, so that the parts also rotate along with the parts; the purpose of the second mounting plate 19 is to secure the rotating electric machine 6 securely while facilitating later dismantling and maintenance.
Further, bearings 22 are arranged between the base 16 and the lifting block 5 and between the output shaft of the rotating motor 6 and the lifting block 5, so that the rotating friction force is reduced, and the stability of the base 16 and the rotating motor 6 is ensured; the bearings 22 are preferably conventional ball bearings, which are conventional bearings used in mechanical designs and are not described in detail herein for the sake of the prior art.
The using method comprises the following steps:
the inspection device of the present application is mounted in place and preferably is coupled to an automated manufacturing line and robot (not shown).
A part to be detected is placed between the two telescopic rods 17 through a manipulator, the telescopic rods 17 are controlled to extend, and the clamping plate 18 is enabled to abut against the surface of the part and clamp the part; the lifting block 5 is controlled to be lifted, and then the telescopic rod 17 is used for driving the part to be lifted to a preset position, so that the part can rotate 360 degrees by taking the telescopic rod 17 as a shaft.
Starting the translation motor 3 to drive the screw rod 10 to rotate, and translating the slide block 7 along the screw rod 10 to drive the camera module 9 to move above the part; starting the camera module 9, wherein the camera module 9 automatically focuses to shoot the surface of the part, and the translation motor 3 drives the camera module 9 to translate back and forth in the shooting process, so that all details of the surface of the part are shot; the shot image is transmitted to the processing module 8 for analysis processing, and the defects of the surface of the part are searched.
After one face of part detects the completion, start rotating electrical machines 6, it is rotatory to drive base 16 through meshed drive bevel gear 20 and driven bevel gear 21, and base 16 drives the part through telescopic link 17 and rotates, makes things convenient for camera module 9 to shoot the detection to other faces of part, reports to the police the instruction to the workman when detecting the defect.
After the detection is finished, the lifting block 5 descends to enable the parts to fall to the top surface of the bottom plate 1, then the telescopic rod 17 retracts to release the parts, and the parts are taken away by the manipulator to enter the next processing link.
The utility model discloses simple structure is compact, degree of automation is high, can once only detect each surface of part automatically, and detection speed is fast, and the testing result is accurate, need not artifical clamping of multiple and upset, improves detection efficiency, has reduced the omission of artifical upset, has improved the detection quality of part.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above embodiments are only described for the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the scope of the present invention defined by the claims.
Claims (8)
1. The utility model provides a part surface defect visual inspection device which characterized in that: the detection device comprises a bottom plate (1), wherein frames (2) are arranged at two ends of the bottom plate (1), and a detection part is arranged between the two frames (2);
the detection part comprises a slide guide assembly arranged between the two frames (2), and the slide guide assembly is provided with a detection assembly; one end of the sliding guide component is connected with a translation motor (3) in a transmission way;
two ends of the bottom plate (1) are respectively provided with an upright post (4), the upright posts (4) are connected with lifting blocks (5) in a sliding manner, one opposite side of each of the two lifting blocks (5) is connected with a clamping part in a rotating manner, and the clamping parts and the detection assemblies are arranged in a vertically corresponding manner;
the top surface of any lifting block (5) is fixedly provided with a rotating motor (6), and the output end of the rotating motor (6) is in transmission connection with the clamping part.
2. The visual inspection device of surface defects of parts according to claim 1, wherein: the detection assembly comprises a sliding block (7) connected with the guide sliding assembly in a sliding mode, a processing module (8) is fixedly mounted at the top end of the sliding block (7), a camera module (9) is fixedly mounted at the bottom end of the sliding block (7), and the camera module (9) is electrically connected with the processing module (8).
3. The visual inspection device for surface defects of parts according to claim 2, wherein: the sliding guide assembly comprises a screw rod (10), the screw rod (10) is rotatably connected with the two frames (2), one end, facing the translation motor (3), of the screw rod (10) penetrates through the frames (2) and then is in transmission connection with the translation motor (3), and the screw rod (10) is in threaded connection with the sliding block (7); two guide sliding rods (11) are symmetrically arranged on two sides of the screw rod (10), two ends of each guide sliding rod (11) are fixedly connected with the two frames (2), and the guide sliding rods (11) are connected with the sliding blocks (7) in a sliding mode.
4. The visual inspection device for surface defects of parts according to claim 3, wherein: one sides of the two frames (2) opposite to each other are fixedly connected with supporting plates (12) respectively, and the guide sliding rods (11) are fixedly connected with the supporting plates (12); being close to translation motor (3) frame (2) rigid coupling has first mounting panel (13), translation motor (3) fixed mounting be in on first mounting panel (13).
5. The visual inspection device for surface defects of parts according to claim 3, wherein: the sliding block (7) is provided with a sliding hole (14) matched with the guide sliding rod (11), a plurality of balls (15) are arranged in the sliding hole (14) in an array mode, and the balls (15) are in rolling contact with the outer wall of the guide sliding rod (11).
6. The visual inspection device for surface defects of parts according to claim 2, wherein: the clamping part comprises two clamping components which are symmetrically arranged, and the two clamping components and the camera module (9) are arranged in an up-and-down corresponding manner; the clamping assembly comprises a base (16) which is rotatably connected with the opposite surfaces of the two lifting blocks (5), and the fixed end of a telescopic rod (17) is fixedly arranged on the base (16); the rotating motor (6) is fixedly installed at the top end of any lifting block (5), and the output end of the rotating motor (6) is in transmission connection with the base (16).
7. The visual inspection device of surface defects of parts according to claim 6, wherein: the movable end of the telescopic rod (17) is fixedly provided with a clamping plate (18), and the clamping plate (18) is matched with a part to be detected.
8. The visual inspection device of surface defects of parts according to claim 6, wherein: a second mounting plate (19) is fixedly connected to the top end of the lifting block (5), and the rotating motor (6) is fixedly mounted on the second mounting plate (19); the output end of the rotating motor (6) extends into the lifting block (5) and is rotationally connected with the lifting block (5); the output end of the rotating motor (6) is fixedly connected with a driving bevel gear (20), the driving bevel gear (20) is in meshed connection with a driven bevel gear (21), and the driven bevel gear (21) is fixedly connected with the base (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220389152.5U CN217277928U (en) | 2022-02-24 | 2022-02-24 | Part surface defect visual inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220389152.5U CN217277928U (en) | 2022-02-24 | 2022-02-24 | Part surface defect visual inspection device |
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| Publication Number | Publication Date |
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| CN217277928U true CN217277928U (en) | 2022-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220389152.5U Expired - Fee Related CN217277928U (en) | 2022-02-24 | 2022-02-24 | Part surface defect visual inspection device |
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| CN (1) | CN217277928U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115494071A (en) * | 2022-11-21 | 2022-12-20 | 河北讯辉科技股份有限公司 | Automatic change part detection device |
| CN115656196A (en) * | 2022-10-20 | 2023-01-31 | 深圳市控汇智能股份有限公司 | Visual detection device and detection method for industrial part defect detection |
| CN115791739A (en) * | 2023-01-06 | 2023-03-14 | 广汉市迈德乐食品有限公司 | Device and method for identifying residual packaging plastic after raw tallow is unsealed |
| CN116908196A (en) * | 2023-09-11 | 2023-10-20 | 南通松伟压铸有限公司 | Metal casting surface defect detection device |
-
2022
- 2022-02-24 CN CN202220389152.5U patent/CN217277928U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115656196A (en) * | 2022-10-20 | 2023-01-31 | 深圳市控汇智能股份有限公司 | Visual detection device and detection method for industrial part defect detection |
| CN115656196B (en) * | 2022-10-20 | 2023-11-07 | 深圳市控汇智能股份有限公司 | Visual detection device and detection method for detecting defects of industrial parts |
| CN115494071A (en) * | 2022-11-21 | 2022-12-20 | 河北讯辉科技股份有限公司 | Automatic change part detection device |
| CN115494071B (en) * | 2022-11-21 | 2023-02-28 | 河北讯辉科技股份有限公司 | Automatic change part detection device |
| CN115791739A (en) * | 2023-01-06 | 2023-03-14 | 广汉市迈德乐食品有限公司 | Device and method for identifying residual packaging plastic after raw tallow is unsealed |
| CN116908196A (en) * | 2023-09-11 | 2023-10-20 | 南通松伟压铸有限公司 | Metal casting surface defect detection device |
| CN116908196B (en) * | 2023-09-11 | 2023-12-01 | 南通松伟压铸有限公司 | Metal casting surface defect detection device |
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