Glass defect detection device based on machine vision

Abstract

The invention discloses a glass defect detection device based on machine vision, which comprises a bottom plate and a cross beam fixedly arranged on the top surface of the bottom plate through a support frame, a visual detection mechanism is arranged above the cross beam, glass is subjected to defect detection through the visual detection mechanism, and a storage mechanism is arranged on the top surface of the bottom plate. Glass detected to be qualified is placed through the storage mechanism, and vertical plates are arranged on the two sides of the top face of the bottom plate in a front-back sliding mode. According to the glass defect detection device based on machine vision, through the arrangement of the clamping mechanism, glass can be clamped and fixed, the purpose of double-sided defect detection is achieved by automatically controlling the glass to turn over, and the clamping mechanism can automatically discharge the glass into the storage mechanism after the glass detection is completed; therefore, the purpose of unified storage of qualified glass is achieved, manual blanking is not needed, and the working intensity and potential safety hazards are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of glass detection, and in particular to a glass defect detection device based on machine vision. Background Art

[0002] Glass defect detection is an important part of ensuring glass quality in industrial production.

[0003] According to the patent application number CN202323581304.5, the mobile phone LCD screen glass surface defect detection device includes a conveyor belt, a detection device is arranged above the conveyor belt, a control panel is arranged on the detection device, and side panels are arranged on both sides of the conveyor belt, and a dust removal bin is arranged above the side panel and on one side of the detection device; a cavity is opened inside the dust removal bin above the conveyor belt, openings are arranged on both sides of the cavity, a dust suction plate is arranged on the top wall of the cavity, and a cleaning roller is arranged in front of the dust suction plate;

[0004] In the above patent, defect detection is performed by transporting the glass to the bottom of the detection device via a conveyor belt. After the detection is completed, personnel usually take the qualified glass one by one, and automatic unloading and storage of qualified glass cannot be achieved. In addition, personnel need to manually turn the glass over to achieve double-sided detection of the glass, which consumes a lot of labor and reduces the detection efficiency of the glass. Therefore, in view of the above shortcomings, the present invention makes the following improvements. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a glass defect detection device based on machine vision, which solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a glass defect detection device based on machine vision, comprising a bottom plate and a beam fixedly arranged on the top surface of the bottom plate through a support frame, a visual detection mechanism is arranged above the beam, and defects of the glass are detected by the visual detection mechanism, and a storage mechanism is arranged on the top surface of the bottom plate, and qualified glass is placed by the storage mechanism;

[0007] Both sides of the top surface of the bottom plate are provided with vertical plates for sliding back and forth, and a first longitudinal electric slide rail is provided inside the vertical plates, a sliding block is provided inside the first longitudinal electric slide rail for sliding, and a fixed plate is provided on the opposite side of the two sliding blocks for rotating through a rotating shaft, and a clamping mechanism is provided on the surface of the fixed plate, and the glass is clamped and fixed by the clamping mechanism for subsequent flipping and unloading.

[0008] Preferably, the clamping mechanism includes a U-shaped frame, two of which are arranged on one side of the fixed plate in front and back, the top and bottom of the U-shaped frame are movably provided with limit plates, the two limit plates are provided on opposite sides thereof with conical adsorption heads, and rollers are provided inside the U-shaped frame through a movable shaft for rotation.

[0009] Preferably, a micro vacuum pump is fixedly installed on the top surface of the fixed plate, and the air inlet of the micro vacuum pump is connected to a T-shaped tube, a diverter tube is arranged inside the U-shaped frame, and both ends of the diverter tube are connected to one end of the conical adsorption head through an L-shaped tube, a telescopic section is arranged on the surface of the L-shaped tube, and both ends of the T-shaped tube are respectively connected to the surfaces of the two diverter tubes.

[0010] Preferably, a double-rod hydraulic cylinder is fixedly arranged inside the U-shaped frame, and two protruding ends of the double-rod hydraulic cylinder are fixedly connected to the surface of the limiting plate.

[0011] Preferably, a motor is fixedly provided on the surface of the sliding block on the right side, and the protruding end of the motor is fixedly connected to one end of the rotating shaft on the right side through a coupling.

[0012] Preferably, the visual detection mechanism includes a U-shaped frame fixedly arranged between the top surfaces of two cross beams, an electric push rod is fixedly arranged on the top surface of the U-shaped frame, a sliding plate is slidably arranged between the two sides of the inner wall of the U-shaped frame, and a first transverse electric slide rail is fixedly arranged at the bottom of the sliding plate, a camera detection module is slidably arranged on the bottom surface of the first transverse electric slide rail, and the protruding end of the electric push rod is fixedly connected to the top surface of the sliding plate.

[0013] Preferably, the storage mechanism comprises a storage box arranged on the top surface of the bottom plate, and a plurality of partitions are movably arranged inside the storage box, grooves matching the partitions are opened on both sides of the inner wall of the storage box, and a baffle is rotatably arranged on the top surface of the storage box and above the groove.

[0014] Preferably, a lifting piece is provided on the surface of the storage box, and the lifting piece is used to push out the glass stored in the storage box.

[0015] Preferably, the lifting member includes a movable rod slidably arranged inside the partition, and a push plate is fixedly arranged at the bottom end of the movable rod, and a U-shaped plate is fixedly arranged between the top ends of the left and right movable rods.

[0016] Preferably, a second longitudinal electric slide rail is provided on both sides of the storage box, and a lifting plate is slidably provided between the two second longitudinal electric slide rails through a connecting block, a slot matching the U-shaped plate is provided on the top of the lifting plate, a movable plate is fixedly provided on one side of the lifting plate through a guide column, and an insert block is fixedly provided on one side of the movable plate, a limiting groove matching the insert block is provided on the surface of the U-shaped plate, and a buffer spring is provided on the surface of the guide column.

[0017] Beneficial Effects

[0018] The present invention provides a glass defect detection device based on machine vision, which has the following beneficial effects compared with the prior art:

[0019] (1) The glass defect detection device based on machine vision can clamp and fix the glass by setting a clamping mechanism, and can automatically control the glass to flip so as to achieve the purpose of double-sided defect detection. In addition, the clamping mechanism can automatically unload the glass into the storage mechanism after the glass is inspected, so as to achieve the purpose of unified storage of qualified glass. There is no need for manual unloading by personnel, which reduces the work intensity and safety hazards.

[0020] (2) The glass defect detection device based on machine vision can separate and store qualified glass products through the setting of a storage mechanism. The vertical placement method realizes the regular placement of several glass products to avoid messy stacking, which can facilitate the subsequent personnel to take materials in a unified manner. By adjusting the number of partitions inside the storage box, the distance between two adjacent partitions can be controlled, so that the spacing between two adjacent partitions is adapted to the thickness of the glass, which is convenient for the subsequent storage of glass, expands the application scope of the storage mechanism, and meets different storage needs.

[0021] (3) The machine vision-based glass defect detection device can quickly eject the glass stored in the storage box through the setting of a lifting piece, making it easy for personnel to take it out. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of the structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the storage mechanism of the present invention;

[0024] Figure 3 is a cross-sectional view of the partition structure of the present invention;

[0025] Figure 4 It is a partial schematic diagram of the clamping mechanism of the present invention;

[0026] Figure 5 For the present invention Figure 2 A partial enlarged view of point A in the middle.

[0027] In the figure: 1. bottom plate; 2. crossbeam; 3. visual inspection mechanism; 31. U-shaped frame; 32. electric push rod; 33. sliding plate; 34. first horizontal electric slide rail; 35. camera inspection module; 4. storage mechanism; 41. storage box; 42. partition; 43. baffle; 44. movable rod; 45. push plate; 46. U-shaped plate; 47. buffer spring; 48. second longitudinal electric slide rail; 49. lifting plate; 410. guide column; 411. movable plate; 412. plug-in block; 5. vertical plate; 6. first longitudinal electric slide rail; 7. sliding block; 8. fixed plate; 9. clamping mechanism; 91. U-shaped frame; 92. limit plate; 93. conical adsorption head; 94. roller; 95. micro vacuum pump; 96. T-shaped pipe; 97. shunt pipe; 98. L-shaped pipe; 99. double-rod hydraulic cylinder; 910. motor. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1

[0030] See also Figure 1 and Figure 4 As shown, the present invention provides a technical solution, and the specific improvements are as follows:

[0031] The glass defect detection device based on machine vision comprises a bottom plate 1 and a crossbeam 2 fixedly arranged on the top surface of the bottom plate 1 through a support frame, a visual detection mechanism 3 is arranged above the crossbeam 2, and the glass is inspected for defects through the visual detection mechanism 3, and a storage mechanism 4 is arranged on the top surface of the bottom plate 1, and the glass that has passed the inspection is placed through the storage mechanism 4;

[0032] Both sides of the top surface of the bottom plate 1 are provided with vertical plates 5 for sliding forward and backward, and a first longitudinal electric slide rail 6 is provided inside the vertical plates 5, a second transverse electric slide rail is provided on the bottom surface of the crossbeam 2, and the bottom surface of the second transverse electric slide rail is fixedly connected to the top surface of the vertical plate 5 through a movable block, a sliding block 7 is provided inside the first longitudinal electric slide rail 6 for sliding, and a fixed plate 8 is provided on the opposite side of the two sliding blocks 7 for rotation through a rotating shaft, and a clamping mechanism 9 is provided on the surface of the fixed plate 8, and the glass is clamped and fixed by the clamping mechanism 9 and used for subsequent flipping and unloading;

[0033] The clamping mechanism 9 includes a U-shaped frame 91, two of which are arranged on one side of the fixed plate 8, and a motor 910 is fixedly arranged on the surface of the right sliding block 7, and the extended end of the motor 910 is fixedly connected to one end of the right rotating shaft through a coupling, and the top and bottom of the U-shaped frame 91 are movably provided with a limit plate 92, and a double-rod hydraulic cylinder 99 is fixedly arranged inside the U-shaped frame 91, and the two extended ends of the double-rod hydraulic cylinder 99 are fixedly connected to the surface of the limit plate 92, and the two limit plates 92 are mutually connected. A conical adsorption head 93 is provided on one side of the pair, a roller 94 is rotatably provided inside the U-shaped frame 91 through a movable shaft, a micro vacuum pump 95 is fixedly provided on the top surface of the fixed plate 8, and the air inlet of the micro vacuum pump 95 is connected with a T-shaped tube 96, a shunt tube 97 is provided inside the U-shaped frame 91, and both ends of the shunt tube 97 are connected with one end of the conical adsorption head 93 through an L-shaped tube 98, and a telescopic section is provided on the surface of the L-shaped tube 98, and both ends of the T-shaped tube 96 are respectively connected with the surfaces of the two shunt tubes 97;

[0034] The glass to be inspected is slid and inserted between the upper and lower limit plates 92. At this time, the roller 94 contacts the side wall of the glass, and the double-rod hydraulic cylinder 99 is started, so that the two protruding ends of the double-rod hydraulic cylinder 99 drive the limit plate 92 to approach the direction of the glass until the conical adsorption head 93 contacts the glass surface, and then the micro vacuum pump 95 is started, so that the micro vacuum pump 95 is set through the T-shaped tube 96 and cooperates with the shunt tube 97 and the L-shaped tube 98 to extract the air between the conical adsorption head 93 and the glass surface, so that the conical adsorption head 93 adsorbs and fixes the glass between the upper and lower limit plates 92, so as to achieve the clamping and fixation of the glass;

[0035] Then, the second horizontal electric slide rail is controlled to drive the vertical plate 5 to move toward the front through the movable block until the glass is moved to the bottom of the visual inspection mechanism 3, so as to facilitate the subsequent defect detection operation. After the single-sided inspection is completed, the motor 910 can be started so that the motor 910 drives the two limit plates 92 to rotate synchronously through the rotating shaft, thereby controlling the glass to flip, thereby realizing the double-sided inspection operation of the glass.

[0036] Embodiment 2

[0037] Based on Example 1, please refer to Figure 1 The specific improvements are as follows:

[0038] The visual inspection mechanism 3 includes a U-shaped frame 31 fixedly arranged between the top surfaces of the two beams 2, an electric push rod 32 is fixedly arranged on the top surface of the U-shaped frame 31, a sliding plate 33 is slidably arranged between the two sides of the inner wall of the U-shaped frame 31, and a first transverse electric slide rail 34 is fixedly arranged at the bottom of the sliding plate 33, and a camera detection module 35 is slidably arranged on the bottom surface of the first transverse electric slide rail 34. The camera detection module 35 is a prior art and is not described in detail in this application document. The extended end of the electric push rod 32 is fixedly connected to the top surface of the sliding plate 33;

[0039] Starting the electric push rod 32 can make the extended end of the electric push rod 32 drive the sliding plate 33 to slide up and down along the inside of the U-shaped frame 31, so as to adjust the height position of the camera detection module 35. Starting the first transverse electric slide rail 34 can make the first transverse electric slide rail 34 drive the camera detection module 35 to slide left and right, thereby adjusting the left and right position of the camera detection module 35, so as to improve the detection accuracy of glass surface defects.

[0040] Embodiment 3

[0041] Based on Example 2, please refer to Figure 1 , Figure 2 as well as Figure 5 The specific improvements are as follows:

[0042] The storage mechanism 4 includes a storage box 41 arranged on the top surface of the bottom plate 1, and a plurality of partitions 42 are movably arranged inside the storage box 41. Grooves matching the partitions 42 are provided on both sides of the inner wall of the storage box 41. A baffle 43 is rotatably provided on the top surface of the storage box 41 and above the groove. A lifting member is provided on the surface of the storage box 41, and the lifting member is used to eject the glass stored in the storage box 41. The lifting member includes a movable rod 44 slidably arranged inside the partition 42, and a push plate 45 is fixedly arranged at the bottom end of the movable rod 44. Sliding rods matching the push plates 45 are provided on both sides of the storage box 41. A U-shaped plate 46 is fixedly arranged between the top ends of the left and right movable rods 44, second longitudinal electric slide rails 48 are arranged on both sides of the storage box 41, and a lifting plate 49 is slidably arranged between the two second longitudinal electric slide rails 48 through a connecting block, a slot matched with the U-shaped plate 46 is opened on the top of the lifting plate 49, a movable plate 411 is fixedly arranged on one side of the lifting plate 49 through a guide column 410, and an insert block 412 is fixedly arranged on one side of the movable plate 411, a limiting groove matched with the insert block 412 is opened on the surface of the U-shaped plate 46, and a buffer spring 47 is arranged on the surface of the guide column 410;

[0043] The number of partitions 42 inside the storage box 41 is adjusted according to the thickness of the glass, and the partitions 42 are inserted into the grooves of the storage box 41. The rotating baffle 43 can limit the partitions 42 above the partitions. At the same time, the bottom surface of the U-shaped plate 46 is just inserted into the corresponding slot, and the insert block 412 on one side of the movable plate 411 is inserted into the inside of the limiting groove under the action of the buffer spring 47, so as to achieve the fixation of the movable plate 411 and the U-shaped plate 46;

[0044] When the glass is detected as a qualified product, the clamping mechanism 9 is controlled to move the glass to the top of the storage mechanism 4, and the glass is controlled to rotate to a vertical state, and the micro vacuum pump 95 is controlled to be closed, so that the glass slides along the surface of the roller 94 into the storage box 41. When the subsequent glass is stored, it is separated and protected by two adjacent partitions 42, and the glass is placed in the storage box 41 for unified storage, so as to achieve the purpose of regular placement;

[0045] When taking, start the second longitudinal electric slide rail 48, so that the second longitudinal electric slide rail 48 drives the lifting plate 49 to move upward, and the U-shaped plate 46 drives the movable rod 44 to move synchronously. At this time, the glass inside the storage box 41 can be pushed out by the setting of the push plate 45, which is convenient for people to take.

[0046] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A glass defect detection device based on machine vision, comprising a bottom plate (1) and a crossbeam (2) fixedly arranged on the top surface of the bottom plate (1) by a support frame, characterized in that: A visual inspection mechanism (3) is provided above the crossbeam (2), and defects of the glass are inspected by the visual inspection mechanism (3); a storage mechanism (4) is provided on the top surface of the bottom plate (1), and qualified glass is placed by the storage mechanism (4); Both sides of the top surface of the bottom plate (1) are provided with vertical plates (5) for sliding forward and backward, and a first longitudinal electric slide rail (6) is provided inside the vertical plate (5), a sliding block (7) is provided inside the first longitudinal electric slide rail (6), and a fixed plate (8) is provided on the opposite side of the two sliding blocks (7) for rotating through a rotating shaft, and a clamping mechanism (9) is provided on the surface of the fixed plate (8), and the glass is clamped and fixed by the clamping mechanism (9) for subsequent flipping and unloading.

2. The glass defect detection device based on machine vision according to claim 1, characterized in that: The clamping mechanism (9) comprises a U-shaped frame (91), wherein two U-shaped frames (91) are provided and are arranged front and rear on one side of the fixed plate (8), the top and bottom of the U-shaped frame (91) are movably provided with limit plates (92), the opposite sides of the two limit plates (92) are provided with conical adsorption heads (93), and the interior of the U-shaped frame (91) is provided with a roller (94) rotatably arranged via a movable shaft.

3. The glass defect detection device based on machine vision according to claim 2, characterized in that: A micro vacuum pump (95) is fixedly arranged on the top surface of the fixed plate (8), and the air inlet of the micro vacuum pump (95) is connected to a T-shaped tube (96). A shunt tube (97) is arranged inside the U-shaped frame (91), and both ends of the shunt tube (97) are connected to one end of the conical adsorption head (93) through an L-shaped tube (98). A telescopic section is arranged on the surface of the L-shaped tube (98), and both ends of the T-shaped tube (96) are respectively connected to the surfaces of the two shunt tubes (97).

4. The glass defect detection device based on machine vision according to claim 3, characterized in that: A double-rod hydraulic cylinder (99) is fixedly arranged inside the U-shaped frame (91), and two protruding ends of the double-rod hydraulic cylinder (99) are fixedly connected to the surface of the limiting plate (92).

5. The glass defect detection device based on machine vision according to claim 4, characterized in that: A motor (910) is fixedly arranged on the surface of the sliding block (7) on the right side, and the protruding end of the motor (910) is fixedly connected to one end of the rotating shaft on the right side via a coupling.

6. The glass defect detection device based on machine vision according to claim 1, characterized in that: The visual detection mechanism (3) comprises a U-shaped frame (31) fixedly arranged between the top surfaces of the two cross beams (2), an electric push rod (32) fixedly arranged on the top surface of the U-shaped frame (31), a sliding plate (33) slidably arranged between the two sides of the inner wall of the U-shaped frame (31), and a first transverse electric slide rail (34) fixedly arranged at the bottom of the sliding plate (33), a camera detection module (35) slidably arranged on the bottom surface of the first transverse electric slide rail (34), and the protruding end of the electric push rod (32) is fixedly connected to the top surface of the sliding plate (33).

7. The glass defect detection device based on machine vision according to claim 1, characterized in that: The storage mechanism (4) comprises a storage box (41) arranged on the top surface of the bottom plate (1), and a plurality of partitions (42) are movably arranged inside the storage box (41), grooves matching the partitions (42) are opened on both sides of the inner wall of the storage box (41), and a baffle (43) is rotatably arranged on the top surface of the storage box (41) and located above the groove.

8. The glass defect detection device based on machine vision according to claim 7, characterized in that: A lifting piece is provided on the surface of the storage box (41), and the lifting piece is used to push out the glass stored inside the storage box (41).

9. The glass defect detection device based on machine vision according to claim 8, characterized in that: The lifting member comprises a movable rod (44) slidably arranged inside the partition (42), a push plate (45) is fixedly arranged at the bottom end of the movable rod (44), and a U-shaped plate (46) is fixedly arranged between the top ends of the left and right movable rods (44).

10. The machine vision-based glass defect detection device according to claim 9, characterized in that: A second longitudinal electric slide rail (48) is provided on both sides of the storage box (41), and a lifting plate (49) is slidably provided between the two second longitudinal electric slide rails (48) through a connecting block, a slot matching the U-shaped plate (46) is provided on the top of the lifting plate (49), a movable plate (411) is fixedly provided on one side of the lifting plate (49) through a guide column (410), and an insert block (412) is fixedly provided on one side of the movable plate (411), a limiting groove matching the insert block (412) is provided on the surface of the U-shaped plate (46), and a buffer spring (47) is provided on the surface of the guide column (410).

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