General-purpose vision inspection device

Abstract

The utility model discloses a general visual inspection device, including frame, tray, set up on the conveying mechanism of frame for conveying tray, set up on the visual inspection mechanism of frame, the tray includes bottom plate, sets up a plurality of positioning column on the bottom plate, and the both sides symmetry of bottom plate are provided with a plurality of jack, and the conveying mechanism includes setting in the left side line body of fixed setting in the frame, setting in the linear guide rail of frame along X direction, the right side line body of sliding setting on linear guide rail, the hand wheel screw module of setting in the frame for driving right side line body along linear guide rail sliding, the drive assembly for driving left side line body and right side line body synchronous transmission and two symmetrical setting in the left side line body and right side line body outside pair tray positioning's jacking positioning assembly. Advantage: the structural design of conveying mechanism and tray can realize the product of different specifications, and one equipment can cover the detection demand of multiple products, and the equipment utilization and the rate of return on investment have been improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of visual inspection mechanisms, specifically a general-purpose visual inspection device. Background Technology

[0002] Automated optical inspection equipment is widely used in industries such as electronics manufacturing, semiconductors, automotive parts, and pharmaceutical packaging to replace manual labor in inspecting the quality of products, including surface defects, scratches, stains, and dimensional errors.

[0003] Existing automated visual inspection equipment is mostly customized for specific products, with fixed mechanical structures, optical systems, and detection algorithms, lacking flexibility. When the product model changes, it often requires redesigning fixtures, adjusting optical paths, or even replacing hardware, resulting in low equipment reuse rates, high modification costs, and long debugging cycles. For example, Chinese patent CN115266738A discloses a visual inspection device and method for engine block and cylinder head, including a roller conveyor line and an inspection worktable. Visual inspection mechanisms are located on both the upper and lower sides of the inspection worktable, which has a lifting port. A limit mechanism is arranged around the lifting port on the inspection worktable. A first lifting mechanism is located on the lower side of the conveyor line. The inspection device also includes a transport mechanism and a second lifting mechanism. The transport mechanism transports the product to the second lifting mechanism, which drives the product to move vertically downwards until the product to be inspected falls into the limit mechanism for restraint. In the aforementioned engine block and cylinder head visual inspection device and method, the first lifting mechanism lifts the product to be inspected from a first position to a second position by using the gap between the rollers. This type of roller conveyor line and its first lifting mechanism are only suitable for conveying and lifting a specific model of fixture or product. Incompatibility issues can easily arise when the fixture or product model changes. If an existing variable-pitch conveyor line is used, the horizontal position of the first lifting mechanism cannot be changed synchronously, thus failing to guarantee the balance of the product when the lifting mechanism lifts the fixture and product after the conveyor line changes pitch.

[0004] Therefore, it is necessary to provide a universal visual inspection device. Utility Model Content

[0005] This utility model provides a universal visual inspection device that effectively solves the problem of incompatibility between visual inspection equipment and different models of products and fixtures.

[0006] The technical solution adopted by this utility model is:

[0007] A general-purpose visual inspection device includes a frame, a tray, a conveying mechanism mounted on the frame for conveying the tray, and a visual inspection mechanism mounted on the frame. The tray includes a base plate and several positioning posts mounted on the base plate. Several insertion holes are symmetrically arranged on both sides of the base plate. The conveying mechanism includes a left-side conveyor mounted on the frame, a linear guide rail mounted on the frame along the X direction, a right-side conveyor rail slidably mounted on the linear guide rail, a handwheel screw module mounted on the frame for driving the right-side conveyor rail to slide along the linear guide rail, a drive assembly for driving the left-side and right-side conveyors to drive synchronous transmission, and two lifting and positioning assemblies symmetrically arranged on the outside of the left-side and right-side conveyors for positioning the tray.

[0008] Furthermore, the lifting and positioning assembly includes a mounting plate fixedly connected to the outside of the left or right side of the line body, a first cylinder vertically mounted on the mounting plate, a first plate mounted at the output end of the first cylinder, a second cylinder horizontally mounted on the first plate along the X-axis and at its output end, a second plate mounted at the output end of the second cylinder, and a pin mounted on the second plate. The pin cooperates with the insertion hole to achieve the positioning of the pallet.

[0009] Furthermore, both the left and right sides of the production line include a frame, a drive wheel at one end of the frame, a driven wheel at the other end of the frame, and a belt that is connected to the drive wheel and the driven wheel for transmission. The drive wheel is provided with concentric prismatic holes. The drive assembly includes a motor located on the outside of the left side of the production line, a coupling, and a prism coaxially connected to the two drive wheels through the prismatic holes. The prism is connected to the motor shaft through the coupling.

[0010] Furthermore, the visual inspection mechanism includes a support mounted on a frame, a first linear module mounted on the support along the X-axis, a second linear module mounted at the output end of the first linear module along the Y-axis, a third linear module mounted at the output end of the second linear module along the Z-axis, a lifting plate mounted at the output end of the third linear module, a light source, a CCD camera, and an adjustment mounting component mounted on the lifting plate for mounting the CCD camera and the light source.

[0011] Furthermore, the adjusting mounting components include a first vertical plate mounted on the lifting plate, a second vertical plate bolted to the first vertical plate, a second guide rail vertically mounted on the second vertical plate, a first mounting bracket slidably mounted on the second guide rail, a stud threadedly connected to the first mounting bracket, a first convex plate mounted on the first vertical plate and having an arc-shaped groove, a rotating head rotatably connected to the first convex plate via the arc-shaped groove and fixedly connected to the upper end of the stud, and a second mounting bracket bolted to the first vertical plate. The camera is bolted to the first mounting bracket, and the light source is bolted to the second mounting bracket. The second mounting bracket has several mounting holes arranged along the Z-axis, and the first vertical plate has a first screw hole that mates with the mounting holes. The first mounting bracket has a vertical waist-shaped groove, and the first vertical plate has a second screw hole that mates with the vertical waist-shaped groove.

[0012] Furthermore, the rotating head includes a first post fixedly connected to the upper end of the stud, a first disk and a second disk disposed on the first post, and a third disk disposed on the upper end of the first post. The first disk is located above the second disk, and the third disk is located above the first disk. The first disk and the second disk have the same diameter, and the diameter of the third disk is larger than the diameter of the first disk. The lower end face of the first disk abuts against the upper end face of the first convex plate, and the upper end face of the second disk abuts against the lower end face of the first convex plate.

[0013] Furthermore, a return line is also provided on the frame, and the return line is located below the conveying mechanism.

[0014] The beneficial effects of the utility model: The structural design of the conveying mechanism and the pallet can adapt to products of different specifications. One device can cover the testing needs of multiple products, which significantly improves the equipment utilization rate and return on investment. Attached Figure Description

[0015] Figure 1 This is an overall schematic diagram of a general vision inspection device provided for an embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the conveying mechanism of a general vision inspection device provided in an embodiment of this application.

[0017] Figure 3 A schematic diagram of the lifting and positioning components and the tray of the general vision inspection device provided in the embodiments of this application.

[0018] Figure 4 This is a schematic diagram of the visual inspection mechanism of the general visual inspection device provided in the embodiments of this application.

[0019] Figure 5 for Figure 4 An enlarged schematic diagram of region A in the middle.

[0020] Figure 6 This is a schematic diagram of the visual inspection mechanism of the general visual inspection device provided in the embodiments of this application, omitting the support, the first linear module, and the second linear module.

[0021] The diagram is labeled as follows: 1. Frame; 2. Pallet; 3. Conveying mechanism; 4. Vision inspection mechanism; 21. Base plate; 22. Positioning post; 201. Insertion hole; 31. Left side line; 32. Right side line; 33. Linear guide rail; 34. Handwheel screw module; 35. Drive assembly; 36. Lifting and positioning assembly; 361. Mounting plate; 362. Cylinder No. 1; 363. Plate No. 1; 364. Cylinder No. 2; 365. Plate No. 2; 366. Pin; 351. Motor; 352. Prism; 41. Support; 42. 43. Linear module 1; 44. Linear module 2; 45. Lifting plate; 46. Light source; 47. CCD camera; 48. Adjustment mounting parts; 481. Vertical plate 1; 482. Vertical plate 2; 483. Guide rail 2; 484. Mounting bracket 1; 485. Stud; 486. Protruding plate 1; 487. Rotating head; 488. Mounting bracket 2; 400. Vertical waist-shaped groove; 871. Column 1; 872. Disc 1; 873. Disc 2; 874. Disc 3; 5. Return line body. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, the general-purpose visual inspection device provided in the embodiments of this application includes a frame 1, a tray 2, a conveying mechanism 3 mounted on the frame 1 for conveying the tray 2, and a visual inspection mechanism 4 mounted on the frame 1. Figure 2 and Figure 3 As shown, the tray 2 includes a base plate 21 and a plurality of positioning posts 22 disposed on the base plate 21. A plurality of insertion holes 201 are symmetrically disposed on both sides of the base plate 21. The conveying mechanism 3 includes a left conveyor 31 fixedly disposed on the frame 1, a linear guide rail 33 disposed on the frame 1 along the X direction, a right conveyor 32 slidably disposed on the linear guide rail 33, a handwheel screw module 34 disposed on the frame 1 for driving the right conveyor 32 to slide along the linear guide rail 33, a drive assembly 35 for driving the left conveyor 31 and the right conveyor 32 to drive synchronous transmission, and two lifting and positioning assemblies 36 symmetrically disposed on the outside of the left conveyor 31 and the right conveyor 32 for positioning the tray 2.

[0024] The handwheel lead screw module 34 includes a lead screw seat, a lead screw mounted on the lead screw seat, and a handwheel mounted at the end of the lead screw. The nut of the lead screw is connected to the right side line body 32.

[0025] In actual use, the product is placed on the base plate 21 of the tray 2 and positioned by the positioning post 22. Then, the tray 2 is placed in the conveyor mechanism 3. The drive assembly 35 drives the left conveyor 31 and the right conveyor 32 to transport the tray 2 to the corresponding position of the vision inspection mechanism 4. Subsequently, the two lifting and positioning assemblies 36 position the tray 2 through the insertion hole 201 and lift the tray 2. Then, the vision inspection mechanism 4 inspects the product in the tray 2. When the size of the tray 2 is changed according to the size of the product, the handwheel screw module 34 is turned to drive the right conveyor 32 to slide along the linear guide rail 33, changing the distance between the right conveyor 32 and the left conveyor 31. For example, if the size of the replacement pallet 2 is larger than that of the previous pallet 2, the forward-rotating handwheel screw module 34 drives the right-side line 32 away from the left-side line 31 along the linear guide rail 33. If the size of the replacement pallet 2 is smaller than that of the previous pallet 2, the reverse-rotating handwheel screw module 34 drives the right-side line 32 closer to the left-side line 31 along the linear guide rail 33.

[0026] In the above design, the structural design of the conveying mechanism 3 and the pallet 2 can adapt to products of different specifications. One device can cover the testing needs of multiple products, which significantly improves the equipment utilization rate and return on investment.

[0027] Specifically: such as Figure 3 As shown, the lifting and positioning assembly 36 includes a mounting plate 361 fixedly connected to the outside of the left side line 31 or the right side line 32, a first cylinder 362 vertically mounted on the mounting plate 361, a first plate 363 mounted at the output end of the first cylinder 362, a second cylinder 364 horizontally mounted on the first plate 363 along the X-axis and with its output end, a second plate 365 mounted at the output end of the second cylinder 364, and a pin 366 mounted on the second plate 365. The pin 366 cooperates with the insertion hole 201 to position the tray 2.

[0028] In actual use, after pallet 2 is delivered to its position, cylinder 364 drives plate 365 to insert pin 366 into the insertion hole 201 of pallet 2, thus positioning pallet 2. Then, cylinder 362 drives plate 363 to raise cylinder 364, causing pallet 2 to rise synchronously and detach from the left and right conveyor belts 31 and 32. After the inspection is completed, the output end of cylinder 362 retracts, causing cylinder 364 to descend and place pallet 2 in the left and right conveyor belts 31 and 32. Subsequently, the output end of cylinder 364 retracts, causing pin 366 to disengage from the insertion hole 201 of pallet 2, thus detaching pallet 2 from the lifting and positioning assembly 36.

[0029] In the above design, the structural design and specific implementation of the lifting and positioning component 36 enable positioning and lifting.

[0030] Specifically: such as Figure 2 As shown, both the left side line 31 and the right side line 32 include a frame, a drive wheel at one end of the frame, a driven wheel at the other end of the frame, and a belt that is connected to the drive wheel and the driven wheel for transmission. The drive wheel is provided with concentric prismatic holes. The drive assembly 35 includes a motor 351 located outside the left side line 31, a coupling, and a prism 352 that is coaxially connected to the two drive wheels through the prismatic holes. The prism 352 is connected to the motor 351 shaft through the coupling.

[0031] In actual use, the coupling and prism 352 are driven to rotate by the motor 351, so that the prism 352 drives the driving wheels of the left and right line bodies 32 to rotate synchronously. With the cooperation of the driven wheels, the belt drive is realized, and the pallet 2 is transported through the belt drive.

[0032] In the above design, the structural design and specific implementation of the left conveyor 31, the right conveyor 32 and the drive assembly 35 facilitate the conveying of the entire conveying mechanism 3 and the transfer of the pallet 2.

[0033] Specifically: such as Figure 1 and Figure 4 As shown, the visual inspection mechanism 4 includes a support 41 mounted on the frame 1, a first linear module 42 mounted on the support 41 along the X-axis, a second linear module 43 mounted on the output end of the first linear module 42 along the Y-axis, a third linear module 44 mounted on the output end of the second linear module 43 along the Z-axis, a lifting plate 45 mounted on the output end of the third linear module 44, a light source 46, a CCD camera 47, and an adjustment mounting piece 48 mounted on the lifting plate 45 for mounting the CCD camera 47 and the light source 46.

[0034] In actual use, after the tray 2 is moved to the predetermined position, the first linear module 42 drives the second linear module 43 to move along the X-axis, the second linear module 43 drives the third linear module 44 to move along the Y-axis, the third linear module 44 drives the lifting plate 45 to rise and fall along the Z-axis, and the rising and falling of the lifting plate 45 drives the adjusting mounting component 48 to rise and fall synchronously, so as to move the light source 46 and the CCD camera 47 to the predetermined position. Then, the light source 46 illuminates the product, and the CCD camera 47 takes pictures of the product surface for inspection.

[0035] In the above design, the structural design and specific implementation of the visual inspection mechanism 4 enable it to inspect different positions of the product.

[0036] Specifically: such as Figure 4 , Figure 5 and Figure 6As shown, the adjusting mounting component 48 includes a first vertical plate 481 mounted on the lifting plate 45, a second vertical plate 482 bolted to the first vertical plate 481, a second guide rail 483 vertically mounted on the second vertical plate 482, a first mounting bracket 484 slidably mounted on the second guide rail 483, a stud 485 threadedly connected to the first mounting bracket 484, a first convex plate 486 mounted on the first vertical plate 481 and having an arc-shaped groove, and a component 485 rotatably connected to the first convex plate 486 via the arc-shaped groove and fixed to the upper end of the stud 485. The system includes a rotating head 487, a second mounting bracket 488 bolted to a first vertical plate 481, a camera bolted to a first mounting bracket 484, and a light source 46 bolted to a second mounting bracket 488. The second mounting bracket 488 has several mounting holes arranged along the Z-axis. The first vertical plate 481 has a first screw hole that mates with the mounting holes. The first mounting bracket 484 has a vertical slot 400, and the first vertical plate 481 has a second screw hole that mates with the vertical slot 400. The connection between the first mounting bracket 484 and the first vertical plate 481 is achieved by bolts passing through the slot and connecting to the second screw hole.

[0037] In actual use, when the height of the CCD camera 47 needs to be adjusted, loosen the bolt connecting the first vertical plate 481 and the second screw hole, and rotate the rotating head 487 within the arc-shaped groove. This causes the rotating head 487 to drive the stud 485 to rotate. Since the stud 485 is threadedly connected to the first mounting bracket 484, the rotation of the stud 485 causes the first mounting bracket 484 to rise and fall along the axial direction of the stud 485. By sliding the first mounting bracket 484 along the second guide rail 483, the height of the first mounting bracket 484 is changed until the second screw hole corresponds to different positions of the vertical waist-shaped groove 400. Then, a bolt is passed through the vertical waist-shaped groove 400 and threadedly connected to the second screw hole. This achieves the change of the height of the CCD camera 47. When the height of the light source 46 needs to be adjusted, the height of the second mounting bracket 488 is changed by changing the connection between the mounting holes at different heights and the bolts at the first screw hole.

[0038] In the above design, the structural design and specific implementation of the adjusting mounting component 48 enable height adjustment of the CCD camera 47 and the light source 46.

[0039] Specifically: such as Figure 5As shown, the rotating head 487 includes a first post 871 fixedly connected to the upper end of a stud 485, a first disk 872 and a second disk 873 disposed on the first post 871, and a third disk 874 disposed on the upper end of the first post 871. The first disk 872 is located above the second disk 873, and the third disk 874 is located above the first disk 872. The first disk 872 and the second disk 873 have the same diameter, and the diameter of the third disk 874 is larger than the diameter of the first disk 872. The lower end face of the first disk 872 abuts against the upper end face of the first convex plate 486, and the upper end face of the second disk 873 abuts against the lower end face of the first convex plate 486.

[0040] In actual use, the rotation of disk 874 drives the entire rotating head 487 to rotate. When the rotating head 487 rotates, the first column 871 is always located in the arc-shaped groove. Disk 873 and disk 872 abut against the lower and upper surfaces of the first convex plate 486, respectively.

[0041] In the above design, the structural design and specific implementation of the rotating head 487 can prevent axial pulling on the rotating head 487 during operation, and can ensure that the height of the first mounting bracket 484 is constant after the rotating head 487 and the stud 485 adjust the first mounting bracket 484 into place, which is convenient to ensure the stability of the first mounting bracket 484 when the first mounting bracket 484 and the first vertical plate 481 are locked with bolts.

[0042] Specifically: such as Figure 1 As shown, a return line 5 is also provided on the frame 1, and the return line 5 is located below the conveying mechanism 3. It should be noted that the structure of the return line 5 is the same as the structure of the conveying mechanism 3 without the lifting and positioning component 36.

[0043] In actual use, the universal visual inspection device of this application is connected to an external production line to realize the return of the unloaded pallet 2 along the return line 5.

[0044] In the above design, the structural design and specific implementation of the return line 5 facilitates docking with external mechanisms and modular application.

[0045] In further detail, it should be understood that the above description is only a specific embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A general-purpose visual inspection device, comprising a frame (1), a tray (2), a conveying mechanism (3) disposed on the frame (1) for conveying the tray (2), and a visual inspection mechanism (4) disposed on the frame (1), characterized in that: The tray (2) includes a base plate (21) and several positioning posts (22) on the base plate (21). Several insertion holes (201) are symmetrically arranged on both sides of the base plate (21). The conveying mechanism (3) includes a left-side conveyor (31) fixedly arranged on the frame (1), a linear guide rail (33) arranged along the X direction on the frame (1), a right-side conveyor (32) slidably arranged on the linear guide rail (33), a handwheel screw module (34) arranged on the frame (1) for driving the right-side conveyor (32) to slide along the linear guide rail (33), a drive assembly (35) for driving the left-side conveyor (31) and the right-side conveyor (32) to drive synchronous transmission, and two lifting and positioning assemblies (36) symmetrically arranged on the outside of the left-side conveyor (31) and the right-side conveyor (32) for positioning the tray (2).

2. The universal visual inspection device according to claim 1, characterized in that: The lifting and positioning assembly (36) includes a mounting plate (361) fixedly connected to the outside of the left side line (31) or the right side line (32), a first cylinder (362) vertically mounted on the mounting plate (361), a first plate (363) mounted at the output end of the first cylinder (362), a second cylinder (364) horizontally mounted on the first plate (363) along the X-axis and at its output end, a second plate (365) mounted at the output end of the second cylinder (364), and a pin (366) mounted on the second plate (365). The pin (366) cooperates with the insertion hole (201) to position the tray (2).

3. The universal visual inspection device according to claim 1, characterized in that: The left side line (31) and the right side line (32) each include a frame, a drive wheel at one end of the frame, a driven wheel at the other end of the frame, and a belt that is connected to the drive wheel and the driven wheel for transmission. The drive wheel is provided with concentric prismatic holes. The drive assembly (35) includes a motor (351) located outside the left side line (31), a coupling, and a prism (352) coaxially connected to the two drive wheels through the prismatic holes. The prism (352) is connected to the motor (351) shaft through the coupling.

4. The universal visual inspection device according to claim 1, characterized in that: The visual inspection mechanism (4) includes a support (41) mounted on a frame (1), a first linear module (42) mounted on the support (41) along the X-axis, a second linear module (43) mounted on the output end of the first linear module (42) along the Y-axis, a third linear module (44) mounted on the output end of the second linear module (43) along the Z-axis, a lifting plate (45) mounted on the output end of the third linear module (44), a light source (46), a CCD camera (47), and an adjustment mounting piece (48) mounted on the lifting plate (45) for mounting the CCD camera (47) and the light source (46).

5. The universal visual inspection device according to claim 4, characterized in that: The adjusting mounting component (48) includes a first vertical plate (481) mounted on the lifting plate (45), a second vertical plate (482) bolted to the first vertical plate (481), a second guide rail (483) vertically mounted on the second vertical plate (482), a first mounting bracket (484) slidably mounted on the second guide rail (483), a stud (485) threadedly connected to the first mounting bracket (484), a first convex plate (486) mounted on the first vertical plate (481) and provided with an arc-shaped groove, and a rotatably connected to the first convex plate (486) via the arc-shaped groove and the upper end of the stud (485). The rotating head (487) is fixedly connected, and the second mounting bracket (488) is bolted to the first vertical plate (481). The camera is bolted to the first mounting bracket (484), and the light source (46) is bolted to the second mounting bracket (488). The second mounting bracket (488) is provided with several mounting holes arranged along the Z-axis. The first vertical plate (481) is provided with a first screw hole that mates with the mounting holes. The first mounting bracket (484) is provided with a vertical waist-shaped groove (400), and the first vertical plate (481) is provided with a second screw hole that mates with the vertical waist-shaped groove (400).

6. The universal visual inspection device according to claim 5, characterized in that: The rotating head (487) includes a first post (871) fixedly connected to the upper end of a stud (485), a first disk (872) and a second disk (873) disposed on the first post (871), and a third disk (874) disposed on the upper end of the first post (871). The first disk (872) is located above the second disk (873), and the third disk (874) is located above the first disk (872). The first disk (872) and the second disk (873) have the same diameter, and the diameter of the third disk (874) is larger than the diameter of the first disk (872). The lower end face of the first disk (872) abuts against the upper end face of the first convex plate (486), and the upper end face of the second disk (873) abuts against the lower end face of the first convex plate (486).

7. The universal visual inspection device according to claim 1, characterized in that: The frame (1) is also provided with a return line (5), which is located below the conveying mechanism (3).

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