Visual inspection machine

By combining the rotating and lifting modules of the vision inspection machine, the profile can be simultaneously lifted and rotated for inspection, solving the problems of low efficiency and insufficient accuracy of existing profile inspection equipment, and realizing comprehensive and efficient inspection of surface defects of profiles.

CN224456613UActive Publication Date: 2026-07-03DUOMAI INTELLIGENT MFG (GUANGDONG) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DUOMAI INTELLIGENT MFG (GUANGDONG) CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-03

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Abstract

This utility model relates to the technical field of profile inspection equipment, and in particular to a visual inspection machine, which includes a frame, an inspection conveyor line, a rotating device, and a visual inspection device. Inspection stations are set up on the inspection conveyor line. A set of rotating modules is set on both sides of the inspection station along the conveying direction. Multiple rotating motors of the rotating modules are slidably mounted on a base along a direction perpendicular to the conveying direction of the profiles. Each profile has a set of rotating motors and a clamping cylinder at both ends. The clamping cylinder drives the corresponding rotating motor to abut against the corresponding profile end. The lifting module simultaneously lifts multiple profiles at the inspection station to remove them from the inspection conveyor line, preventing scratches and damage during the rotating inspection process. The rotating modules clamp multiple profiles and rotate them, allowing the visual inspection device to perform a comprehensive inspection of the profiles' circumference, improving inspection efficiency and accuracy.
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Description

Technical Field

[0001] This utility model relates to the field of profile inspection equipment technology, and in particular to a visual inspection machine. Background Technology

[0002] Because air bubbles and inclusions may be generated during the smelting process of the profiles, after being rolled by the rolling mill production line, the surface of the profiles will show scars. During the rolling process, the rolling mill may experience malfunctions such as roll breakage and guide device displacement, which will cause defects such as missing material and rolling marks on the surface of the profiles. If defective products are not picked out in time, it will cause losses to the end users and also affect the product quality reputation of the manufacturing company.

[0003] Patent publication number CN220671298U relates to a surface defect detection device for aluminum alloy profiles, including a first operating table and a second operating table. A support column is fixedly connected to the bottom surface of the first operating table, and a support rod is fixedly connected to the upper surface of the first operating table. The second operating table is fixedly connected to the end of the support rod away from the first operating table. In this patent, the sample is transported forward by the first and second transport belts through the cooperation of a motor, a rotating shaft, a conveyor belt, and a gear set mechanism. An air compressor, an infrared scanner, and an alarm are used to spray high-pressure gas from the air compressor to remove fine impurities from the sample surface, and the infrared scanner detects pits and defects in the sample. However, at least one surface is not scanned, resulting in incomplete detection. Only one profile can be detected at a time, leading to low efficiency. Utility Model Content

[0004] In order to address the technical deficiencies mentioned in the background art, the purpose of this utility model is to provide a visual inspection machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A visual inspection machine includes: a frame, an inspection conveyor line mounted on the frame, a rotating device for rotating profiles, and a visual inspection device for inspecting surface defects of the profiles; an inspection station is provided on the inspection conveyor line; the rotating device includes two sets of rotating modules and a lifting module, and a set of the rotating modules is provided on both sides of the inspection station along the conveying direction; each rotating module includes a base, multiple sets of rotating motors arranged at intervals along the conveying direction of the profiles, and multiple clamping cylinders; the multiple sets of rotating motors are slidably mounted on the base along a direction perpendicular to the conveying direction of the profiles; each end of each profile is correspondingly provided with a set of the rotating motors and a clamping cylinder; the clamping cylinders are used to drive the corresponding rotating motors to abut against the corresponding end of the profile; the lifting module is located below the inspection station and is used to lift the profile to be rotated to a set height; the visual inspection device is mounted above the inspection station.

[0007] By adopting the above technical solution, the inspection conveyor line transports the profiles to be inspected to the inspection station. The lifting module simultaneously lifts multiple profiles at the inspection station to detach them from the conveyor line, preventing scratches and damage during rotational inspection and protecting the profiles. The rotating modules on both sides of the conveyor line clamp multiple profiles and rotate them, allowing the vision inspection device to perform a comprehensive inspection of the profiles' circumference, improving inspection efficiency and accuracy.

[0008] Furthermore, each of the rotary motors is equipped with a rotating head on its output shaft. The side of the rotating head that abuts against the end of the profile is provided with a friction surface to improve the stability of clamping and rotation and prevent the profile from falling off during rotation.

[0009] Furthermore, the lifting module includes a support base connected to the frame, a lifting motor, a support column, and two lifting bars. The lifting motor is vertically mounted on the support base, and its output shaft is connected to the support column. The length direction of the support column is the same as the length direction of the profile. A lifting bar is provided at each end of the support column. The lifting bars are located below multiple profiles to be tested, and are used to separate the profiles from the testing conveyor line, improving the efficiency of the flipping process and the accuracy of the testing. They also prevent the profiles from being scratched during the flipping process, thus better protecting the product.

[0010] Furthermore, the lifting module also includes two sets of gripping units and two lifting motors. Each lifting bar has a set of gripping units at both ends, each gripping unit having multiple clamping positions. Each clamping position corresponds to a profile to adjust the spacing between adjacent profiles, improving the precise alignment of the profile with the rotary motor and increasing inspection efficiency. Each lifting bar has a corresponding lifting motor connected to its lower side, and the lifting motor is vertically mounted on the support column. When multiple clamping positions clamp and fix the corresponding profile, the lifting motor drives the lifting bar to lift, causing the profile to disengage from the clamping positions and the inspection conveyor line, facilitating the rotation of the profile for visual inspection.

[0011] Furthermore, the gripper unit includes a fixed gripper arm, a movable gripper arm, and a gripping motor. The fixed gripper arm is fixedly mounted on the support column, and its upper side is provided with a plurality of first slots spaced apart along its length. The lower side of the movable gripper arm is slidably connected to the support column along the profile conveying direction, and the movable gripper arm is disposed on one side of the fixed gripper arm. The output shaft of the gripping motor is connected to the movable gripper arm. The upper end of the movable gripper arm is provided with a second slot corresponding to the first slot. The first slot and the second slot are arranged through each other along the length direction of the profile, and the width of the first slot and the second slot is greater than the width of the profile. When the profile is located in the first slot and the second slot, the gripping motor is used to drive the movable gripper arm to slide a set distance. The first slot and the second slot are staggered to grip the profile, improving compatibility and adapting to profiles of different sizes.

[0012] Furthermore, the rotating device also includes a servo motor, a reducer, two lead screws, and two mounting plates. Each base has a mounting plate slidably mounted on it, and multiple sets of the rotary motors and multiple clamping cylinders are mounted on the mounting plates. The output shaft of the servo motor is connected to the reducer, and the lead screws connect the reducer to the corresponding mounting plate, improving compatibility and detection efficiency. The servo motor, the reducer, and the two lead screws are all located below the detection station.

[0013] Furthermore, the vision inspection machine also includes a aligning and blocking device, which comprises two clappers and two aligning cylinders. One aligning cylinder and one clapper are respectively installed on each side of the feed end of the inspection conveyor line. The output shaft of the aligning cylinder is connected to the clapper. The two clappers are used to push the profile to make the ends of the profile on the inspection conveyor line flush, improving the clamping efficiency of the two sets of rotary motors and the efficiency of spacing adjustment, and preventing the profile from deviating.

[0014] Furthermore, the alignment and blocking device also includes a blocking cylinder and a blocking plate. The blocking plate is disposed on the inner side of the feed end, the blocking cylinder is vertically arranged, and the output shaft of the blocking cylinder is connected to the blocking plate. The blocking plate is used to intercept the profile to be aligned, so as to facilitate the alignment of the profile and prevent missed alignment.

[0015] Furthermore, the visual inspection device includes a crossbeam, multiple fixed seats spaced apart along the length of the crossbeam, and multiple camera units. The crossbeam is positioned above the inspection station, and its length is aligned with the length of the profile to be inspected. Each fixed seat has a corresponding camera unit fixed to it. The camera units are used to acquire information about the presence of surface defects in the profiles at the inspection station, allowing for simultaneous inspection of multiple profiles and thus higher inspection efficiency.

[0016] In summary, the beneficial effects of this utility model are as follows:

[0017] The inspection conveyor line in this invention transports the profiles to be inspected to the inspection station. The lifting module simultaneously lifts multiple profiles at the inspection station, detaching them from the conveyor line. This prevents scratches and damage during the rotating inspection process, protecting the profiles. Rotating modules on both sides of the conveyor line clamp multiple profiles and rotate them, allowing the visual inspection device to perform a comprehensive inspection of the profiles' circumference, improving both inspection efficiency and accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of one embodiment of the visual inspection machine of this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the visual inspection machine of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of an embodiment of the rotating device of the visual inspection machine of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of an embodiment of the inspection conveyor line of the vision inspection machine of this utility model.

[0022] Figure 5 This is a schematic diagram of the lifting module of the vision inspection machine of this utility model.

[0023] Figure 6 This is a schematic diagram of the structure of one embodiment of the visual inspection device of the visual inspection machine of this utility model.

[0024] Explanation of the reference numerals in the figure:

[0025] 1. Vision inspection machine; 2. Frame; 3. Inspection conveyor line; 31. Inspection station; 4. Rotating device; 41. Rotating module; 411. Base; 412. Rotary motor; 413. Clamping cylinder; 414. Rotating head; 42. Lifting module; 421. Support base; 422. Lifting motor; 423. Support column; 424. Lifting bar; 425. Grip unit; 4251. Fixed clamping arm; 4252. First slot; 4 253. Movable clamping arm; 4254. Second slot; 4255. Clamping motor; 426. Lifting motor; 427. Guide rod; 43. Servo motor; 44. Reducer; 45. Transmission screw; 46. Mounting plate; 5. Vision inspection device; 51. Crossbeam; 52. Fixing base; 53. Camera unit; 6. Alignment and blocking device; 61. Alignment plate; 62. Alignment cylinder; 63. Blocking cylinder; 64. Blocking plate; 7. Profile. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0027] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0028] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0029] The following is in conjunction with the appendix Figure 1-6 The embodiments of this utility model will be described in further detail below.

[0030] A visual inspection machine 1, such as Figure 1 , Figure 2 , Figure 3 As shown, it includes a frame 2, an inspection conveyor line 3 mounted on the frame 2, a rotating device 4 for rotating profiles 7, and a visual inspection device 5 for inspecting surface defects of profiles 7. An inspection station 31 is provided on the inspection conveyor line 3. The rotating device 4 includes two sets of rotating modules 41 and a lifting module 42. A set of rotating modules 41 is provided on both sides of the inspection station 31 along the conveying direction. Each rotating module 41 includes a base 411, multiple sets of rotating motors 412 arranged sequentially and at intervals along the conveying direction of the profiles 7, and multiple clamping cylinders 413. The multiple sets of rotating motors 412 are slidably mounted on the base 411 along a direction perpendicular to the conveying direction of the profiles 7. Each end of each profile 7 is correspondingly provided with a set of rotating motors 412 and a clamping cylinder 413. The clamping cylinder 413 drives the corresponding rotating motor 412 to abut against the corresponding end of the profile 7. The lifting module 42 is located below the inspection station 31 and is used to lift the profile 7 to be rotated to a set height. The visual inspection device 5 is mounted above the inspection station 31.

[0031] The inspection conveyor line 3 transports the profiles 7 to be inspected to the inspection station 31. Simultaneously, the lifting module 42 lifts multiple profiles 7 from the inspection station 31, removing them from the inspection conveyor line 3. This prevents scratches and damage to the profiles 7 during rotational inspection, protecting them. The rotating modules 41 on both sides of the inspection conveyor line 7 clamp multiple profiles 7 and rotate them, allowing the vision inspection device 5 to perform a comprehensive inspection of the circumference of the profiles 7, improving inspection efficiency and accuracy.

[0032] In some embodiments, please refer to Figure 2 , Figure 3 Each rotary motor 412 has a rotating head 414 on its output shaft. The side of the rotating head 414 that abuts against the end of the profile 7 has a friction surface to improve the stability of clamping and rotation and prevent the profile 7 from falling off during rotation. The cross-section of the rotating head 414 can be set as a circular structure, and its end face is provided with multiple grooves to improve friction and extrusion deformation force, thereby improving the clamping effect and flexibility of the profile 7. The flexible contact can also protect the profile 7.

[0033] In some embodiments, please refer to Figure 3 , Figure 4 , Figure 5The lifting module 42 includes a support base 421 connected to the frame 2, a lifting motor 422, a support column 423, and two lifting bars 424. The lifting motor 422 is vertically mounted on the support base 421, and its output shaft is connected to the support column 423. The length direction of the support column 423 is the same as the length direction of the profile 7. A lifting bar 424 is provided at both ends of the support column 423. The lifting bars 424 are located below multiple profiles 7 to be inspected, and are used to separate the profiles 7 from the inspection conveyor line 3, improving the efficiency of the flipping and the accuracy of the inspection. They also prevent the profiles 7 from being scratched during the flipping process, thus better protecting the product.

[0034] Preferably, the lifting module 42 further includes two sets of gripping units 425 and two lifting motors 426. Each lifting bar 424 has a set of gripping units 425 at both ends, with multiple gripping positions on each unit. Each gripping position corresponds to a profile 7 to adjust the spacing between adjacent profiles 7, improving the precise alignment of the profile 7 with the rotary motor 412 and increasing inspection efficiency. Each lifting bar 424 has a corresponding lifting motor 426 connected to its lower side, and the lifting motor 426 is vertically mounted on the support column 423. When multiple gripping positions clamp and fix the corresponding profile 7, the lifting motor 426 drives the lifting bar 424 to lift, causing the profile 7 to disengage from the gripping positions and the inspection conveyor line 3, facilitating rotation of the profile 7 for visual inspection.

[0035] The lifting module 42 also includes two guide rods 427, with one guide rod 427 on each side of the lifting motor 422. One end of the guide rod 427 passes through the support base 421 and connects to the support column 423, which can ensure the balance and stability of the support column 423 during the lifting process.

[0036] In some embodiments, please refer to Figure 4 , Figure 5The gripper unit 425 includes a fixed gripping arm 4251, a movable gripping arm 4253, and a gripping motor 4255. The fixed gripping arm 4251 is fixedly mounted on the support column 423, and a plurality of first slots 4252 are spaced apart along the length direction on the upper side of the fixed gripping arm 4251. The lower side of the movable gripping arm 4253 is slidably connected to the support column 423 along the conveying direction of its profile 7, and the movable gripping arm 4253 is located on one side of the fixed gripping arm 4251. The output shaft of the gripping motor 4255 is connected to the movable gripping arm 4253. The upper end of the movable gripping arm 4253 is provided with a second slot 4254 corresponding to the first slots 4252, and the first slots 4252 and the corresponding second slots 4254 form a gripping position. The first slots 4252 and the second slots 4254 are arranged through each other along the length direction of the profile 7, and the width of the first slots 4252 and the second slots 4254 is greater than the width of the profile 7. When the profile 7 is located in the first slot 4252 and the second slot 4254, the clamping motor 4255 is used to drive the movable clamping arm 4253 to slide a set distance. The first slot 4252 and the second slot 4254 are staggered to clamp the profile 7, improving compatibility and adapting to profiles 7 of different sizes.

[0037] In some embodiments, please refer to Figure 3 , Figure 4 The rotating device 4 also includes a servo motor 43, a reducer 44, two lead screws 45, and two mounting plates 46. Each base 411 has a mounting plate 46 slidably mounted on it, and multiple sets of rotary motors 412 and multiple clamping cylinders 413 are mounted on the mounting plate 46. The output shaft of the servo motor 43 is connected to the reducer 44, and the lead screws 45 connect the reducer 44 to the corresponding mounting plate 46, improving compatibility and inspection efficiency. The servo motor 43, reducer 44, and two lead screws 45 are all located below the inspection station 31. The servo motor 43 can drive the two lead screws 45 to rotate, thereby synchronously driving the mounting plates 46 on the two bases 411 to move towards or away from each other. This ensures that the two sets of rotary motors 412 can stably clamp the profile 7, increasing the adjustment stroke of the rotary motors 412 to accommodate profiles 7 of different sizes, thus enhancing compatibility.

[0038] In some embodiments, please refer to Figure 3 The visual inspection machine 1 also includes a aligning and blocking device 6, which includes two clapping plates 61 and two aligning cylinders 62. An aligning cylinder 62 and a clapping plate 61 are provided on both sides of the feed end of the inspection conveyor line 3. The output shaft of the aligning cylinder 62 is connected to the clapping plate 61. The two clapping plates 61 are used to push the profile 7 so that the ends of the profile 7 on the inspection conveyor line 3 are aligned, improving the clamping efficiency of the two sets of rotary motors 412 and the efficiency of spacing adjustment, and preventing the profile 7 from deviating.

[0039] For preferred options, please refer to [the provided text]. Figure 4 The alignment and baffle device 6 also includes a baffle cylinder 63 and a baffle plate 64. The baffle plate 64 is located on the inner side of the feed end, and the baffle cylinder 63 is vertically arranged. The output shaft of the baffle cylinder 63 is connected to a baffle plate 64. The baffle plate 64 is used to intercept the profile 7 to be aligned, so as to facilitate the alignment of the profile 7 and prevent missed alignment.

[0040] In some embodiments, please refer to Figure 2 , Figure 6 The visual inspection device 5 includes a crossbeam 51, multiple fixed seats 52 spaced apart along the length of the crossbeam 51, and multiple camera units 53. The crossbeam 51 is positioned above the inspection station 31, and its length is aligned with the length of the profile 7 to be inspected. Each fixed seat 52 has a corresponding camera unit 53 fixed to it. The camera unit 53 is used to acquire information about the presence of defects in the appearance of the profile 7 at the inspection station 31, allowing for simultaneous inspection of multiple profiles 7, thus improving inspection efficiency.

[0041] Among them, a groove can be provided on the crossbeam 51 along its length, and the fixing seat 52 can be slidably disposed in the groove, so as to facilitate the adjustment of the position of the fixing seat 52 to quickly match the profile 7 of the corresponding size, and the adjustment efficiency is higher.

[0042] During operation, firstly, profile 7 enters the feed end of the inspection conveyor line 3. The baffle cylinder 63 extends the baffle plate 64 to block profile 7. Simultaneously, two aligning cylinders 62 push out the aligning plate 61 to center profile 7. The extension lengths of the two aligning cylinders 62 are the same, facilitating accurate and rapid clamping of profile 7 by the subsequent two sets of rotary motors 412. Then, the aligning cylinder 62 drives the aligning plate 61 to retract and reset, the baffle cylinder 63 descends, and the aligned profile 7 is conveyed to the inspection station 31. Simultaneously, the next profile 7 to be aligned is conveyed to the feed end of the inspection conveyor line 3.

[0043] Secondly, in this embodiment, the inspection station 31 is equipped with five profiles 7 for surface defect inspection. When all five profiles 7 are delivered to the inspection station 31, the lifting motor 422 drives the support column 423 and its gripper unit 425, lifting motor 426, and lifting bar 424 to rise synchronously and abut against the lower surface of the profile 7. Each profile 7 is located in the corresponding first slot 4252 and second slot 4254. The clamping motor 4255 drives the movable clamping arm 4253 to move and tighten the clamping position. The groove walls of the first slot 4252 and second slot 4254 fix the profile 7, thereby ensuring consistent spacing between adjacent profiles 7. Then, the clamping motor 4255 rotates in the opposite direction to release the profile 7. The lifting motor 426 drives the lifting bar 424 to rise synchronously to raise the five profiles 7 to a set height, facilitating the clamping of the corresponding profiles 7 by the two sets of rotary motors 412.

[0044] Third, the servo motor 43 rotates forward, driving the two transmission screws 45 to rotate. The rotation of the two transmission screws 45 drives the two mounting plates 46 to move synchronously towards each other by a set distance. Multiple clamping cylinders 413 simultaneously push out the rotary motors 412 so that the rotating heads 414 of the two opposing sets of rotary motors 412 abut against both ends of the profile 7. Next, the lifting motor 426 drives the lifting bar 424 to descend and reset, and the lifting motor 422 drives the support column 423 and the entire structure on it to descend and reset.

[0045] Fourth, multiple sets of rotating motors 412 rotate, synchronously driving the five profiles 7 to rotate. During the rotation, multiple camera units 53 simultaneously detect the surface of the profiles 7. If any defects are found, an alarm will be triggered.

[0046] Fifth, after the inspection is completed, the rotary motor 412 stops rotating, the lifting motor 422 rises so that the lifting bar 424 supports the lower surface of the profile 7, and the clamping cylinder 413 drives the rotary motor 412 to reset. Then the lifting motor 422 resets, the profile 7 falls onto the inspection conveyor line 3, and the inspection conveyor line 3 transports the inspected profile 7 out.

[0047] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A vision inspection machine characterized by, include: The equipment includes a frame (2), a testing conveyor line (3) mounted on the frame (2), a rotating device (4) for rotating the profile (7), and a visual inspection device (5) for detecting surface defects of the profile (7); a testing station (31) is provided on the testing conveyor line (3); the rotating device (4) includes two sets of rotating modules (41) and a lifting module (42), and a set of the rotating modules (41) is provided on both sides of the testing station (31) along the conveying direction; the rotating module (41) includes a base (411), multiple sets of rotating motors (412) arranged sequentially and at intervals along the conveying direction of the profile (7), and multiple clamping devices. Cylinder (413); Multiple sets of the rotary motors (412) are slidably arranged on the base (411) along the conveying direction perpendicular to the profile (7); Each end of the profile (7) is provided with a set of the rotary motors (412) and a clamping cylinder (413); The clamping cylinder (413) is used to drive the corresponding rotary motor (412) to abut against the end of the corresponding profile (7); The lifting module (42) is arranged below the inspection station (31) and is used to lift the profile (7) to be rotated to a set height; The visual inspection device (5) is mounted above the inspection station (31).

2. The vision inspection machine of claim 1, wherein, Each of the rotary motors (412) has a rotating head (414) on its output shaft, and the rotating head (414) has a friction surface on the side that abuts against the end of the profile (7).

3. The vision inspection machine of claim 1, wherein, The lifting module (42) includes a support base (421), a lifting motor (422), a support column (423), and two lifting bars (424) connected to the frame (2). The lifting motor (422) is vertically mounted on the support base (421). The output shaft of the lifting motor (422) is connected to the support column (423). The length direction of the support column (423) is the same as the length direction of the profile (7). A lifting bar (424) is provided at both ends of the support column (423). The lifting bar (424) is located below multiple profiles (7) to be tested and is used to separate the profiles (7) from the testing conveyor line (3).

4. The vision inspection machine of claim 3, wherein, The lifting module (42) also includes two sets of gripping units (425) and two lifting motors (426); each lifting bar (424) has a set of gripping units (425) at both ends, and the gripping units (425) are provided with multiple clamping positions, each clamping position corresponding to a profile (7) to adjust the spacing between two adjacent profiles (7); each lifting bar (424) is connected to a corresponding lifting motor (426) on its lower side, and the lifting motor (426) is vertically arranged on the support column (423); when multiple clamping positions clamp and fix the corresponding profile (7), the lifting motor (426) is used to drive the lifting bar (424) to lift so that the profile (7) is separated from the clamping position and the detection conveyor line (3).

5. The vision inspection machine of claim 4, wherein, The clamping unit (425) includes a fixed clamping arm (4251), a movable clamping arm (4253), and a clamping motor (4255); the fixed clamping arm (4251) is fixedly mounted on the support column (423), and a plurality of first slots (4252) are spaced apart along the length direction on the upper side of the fixed clamping arm (4251); the lower side of the movable clamping arm (4253) is slidably connected to the support column (423) along the conveying direction of its profile (7), and the movable clamping arm (4253) is located on one side of the fixed clamping arm (4251), and the output shaft of the clamping motor (4255) is connected to the movable clamping arm (4253); the movable ...1) is slidably connected to the support column (423), and a plurality of first slots (4252) are spaced apart along the length direction on the upper side of the fixed clamping arm (4251), and a plurality of first slots (4252) are spaced apart The upper end of the 253) is provided with a second slot (4254) corresponding to the first slot (4252); the first slot (4252) and the second slot (4254) are arranged through the length direction of the profile (7), and the width of the first slot (4252) and the second slot (4254) is greater than the width of the profile (7); when the profile (7) is located in the first slot (4252) and the second slot (4254), the clamping motor (4255) is used to drive the movable clamping arm (4253) to slide a set distance, and the first slot (4252) and the second slot (4254) are offset to clamp the profile (7).

6. The vision inspection machine of claim 1, wherein, The rotating device (4) also includes a servo motor (43), a reducer (44), two transmission screws (45) and two mounting plates (46); each base (411) is slidably provided with a mounting plate (46), and the mounting plate (46) is provided with multiple sets of rotating motors (412) and multiple clamping cylinders (413); the output shaft of the servo motor (43) is connected to the reducer (44), and the transmission screw (45) is used to connect the reducer (44) and the corresponding mounting plate (46); the servo motor (43), the reducer (44) and the two transmission screws (45) are all located below the detection station (31).

7. The vision inspection machine of claim 1, wherein, The visual inspection machine also includes a aligning and blocking device (6), which includes two clapping plates (61) and two aligning cylinders (62). Each side of the feed end of the inspection conveyor line (3) is provided with one aligning cylinder (62) and one clapping plate (61). The output shaft of the aligning cylinder (62) is connected to the clapping plate (61). The two clapping plates (61) are used to push the profile (7) so that the ends of the profile (7) on the inspection conveyor line (3) are aligned.

8. The vision inspection machine of claim 7, wherein, The alignment and blocking device (6) further includes a blocking cylinder (63) and a blocking plate (64); the blocking plate (64) is located on the inner side of the feed end, the blocking cylinder (63) is vertically arranged, and the output shaft of the blocking cylinder (63) is connected to the blocking plate (64). The blocking plate (64) is used to intercept the profile (7) to be aligned.

9. The vision inspection machine of claim 1, wherein, The visual inspection device (5) includes a crossbeam (51), a plurality of fixed seats (52) spaced apart along the length of the crossbeam (51), and a plurality of camera units (53); the crossbeam (51) is located above the inspection station (31), and the length of the crossbeam (51) is the same as the length of the profile (7) to be inspected; each fixed seat (52) is fixed with a corresponding camera unit (53), and the camera unit (53) is used to obtain the appearance defects of the profile (7) on the inspection station (31).