Defect detection device for automobile filter element

Abstract

The utility model relates to an automobile filter element defect detection device which comprises a first filter element supporting plate, a second filter element supporting plate, a visual detection assembly, a three-axis linear module and a clamping jaw mechanism, the tail end of a Z-axis linear module of the three-axis linear module is connected with the clamping jaw mechanism, and the clamping jaw mechanism comprises a pair of clamping jaws. The clamping device is used for clamping a to-be-detected automobile filter element from the first filter element supporting plate to a detection station, and is used for clamping the automobile filter element from the detection station and conveying the automobile filter element to the second filter element supporting plate; the visual detection assembly comprises a base, a first camera and a second camera, the base is used for placing the to-be-detected automobile filter element, the first camera is used for detecting the height position of a sealing ring on the automobile filter element, the second camera is used for detecting the appearance defect of the automobile filter element, and the base is rotatable. According to the detection device, the filter element supporting plate is manually taken and placed, and grabbing, detection and placement of the automobile filter element are all automatic, so that the detection efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of workpiece appearance quality inspection, and particularly relates to an automobile filter element defect detection device. Background Art

[0002] As Figure 1 Shown in an automobile filter element 1, which is a stainless steel filter element. A plurality of stainless steel mesh sheets 12 are arranged on a cylindrical shell 11. The stainless steel mesh sheets 12 are welded and assembled with the cylindrical shell 11. It is necessary to detect the welding quality and whether the position of the stainless steel mesh sheet meets the requirements. A sealing ring 13 is pre-installed at the lower part of the cylindrical shell 11, and there are also requirements for the dimension of the sealing ring 13 from the bottom end of the cylindrical shell 11. Whether it is an appearance defect or the installation position of the sealing ring, it is detected manually, which not only has low efficiency, but also has certain subjective human factors in the judgment of appearance defects. Summary of the Utility Model

[0003] The purpose of the utility model is an automobile filter element defect detection device, which detects the appearance defects of the filter element by means of equipment.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An automobile filter element defect detection device includes a first filter element support plate, a second filter element support plate, a vision detection component, a three-axis linear module and a clamping jaw mechanism. The first filter element support plate is used to place the automobile filter element to be detected, and the second filter element support plate is used to place the detected automobile filter element. The three-axis linear module includes an X-axis linear module, a Y-axis linear module and a Z-axis linear module. The end of the Z-axis linear module is connected to the clamping jaw mechanism. The clamping jaw mechanism includes a pair of clamping jaws, which are used to clamp the automobile filter element to be detected from the first filter element support plate to the detection station, and to clamp and send the automobile filter element from the detection station to the second filter element support plate;

[0006] The vision detection component includes a base, a first camera and a second camera. The base is used to place the automobile filter element to be detected. The first camera is used to detect the height position of the sealing ring on the automobile filter element, and the second camera is used to detect the appearance defects of the automobile filter element. The base is rotatable.

[0007] Further, a plurality of first positioning columns are arranged on the first filter element support plate, and the first positioning columns are used for the automobile filter element to be detected to be sleeved from top to bottom.

[0008] Further, the pair of clamping jaws are respectively connected to two fingers of a pneumatic finger cylinder, and the clamping jaws have arc portions for cooperating with the outer peripheral surface of the automobile filter element.

[0009] Further, a second positioning post is provided on the base. The second positioning post is for the vertical placement of the automotive filter element, and the bottom of the base is driven by a servo motor.

[0010] Further, the vision detection component is at the first detection station. The automotive filter element defect detection device further includes a second detection station, and a rangefinder is provided at the second detection station for measuring the height of the automotive filter element.

[0011] Further, a linear moving slide is provided at the second detection station. A third positioning post is provided on the slide plate of the linear moving slide. The third positioning post is for the vertical placement of the automotive filter element, and the rangefinder is located above the linear moving slide.

[0012] Further, a plurality of placement grooves are provided on the second filter element support plate, and the placement grooves are for the flat placement of the detected automotive filter elements.

[0013] Further, the pair of clamping jaws are respectively connected to the two fingers of a pneumatic finger cylinder. The clamping jaws have arc portions for cooperating with the outer peripheral surface of the automotive filter element. The cylinder body of the pneumatic finger cylinder is connected to a rotating plate, and the rotating plate is in transmission connection with a servo motor. The servo motor is used to drive the rotation of the rotating plate so that the cylinder body swings by a certain angle.

[0014] Further, the automotive filter element defect detection device further includes a non-conforming product collection box for placing the detected non-conforming automotive filter elements.

[0015] Advantages of the present utility model:

[0016] For the automotive filter element defect detection device of the present utility model, the first filter element support plate and the second filter element support plate are respectively for placing the to-be-detected and the detected and qualified automotive filter elements. The support plates are movable and are taken and placed manually. The first filter element support plate loaded with a plurality of to-be-detected automotive filter elements is placed at the set position on the platform, and the subsequent grasping, detection, and placement are all automatic, thereby effectively improving the detection efficiency of the automotive filter elements. By using the two cameras of the vision detection component, the installation position of the sealing ring and the appearance of the automotive filter element are respectively detected, and the automotive filter element can also rotate during detection, so that all parts of the stainless steel mesh on its circumference can be detected in place. Description of the drawings

[0017] Figure 1 is a three-dimensional view of the automotive filter element to be detected;

[0018] Figure 2 is a three-dimensional view of the automotive filter element defect detection device of the present utility model after removing the top shell structure;

[0019] Figure 3 is Figure 2 a partial view at the first filter element support plate in

[0020] Figure 4 It is a structural view of the visual detection component;

[0021] Figure 5 It is a partial view of the rear side of the automotive filter defect detection device of the present utility model;

[0022] Figure 6 It is a three-dimensional view of the second filter element support plate;

[0023] Figure 7 is Figure 2 The top view of the structure shown.

[0024] 1. Automotive filter; 11. Cylindrical housing; 12. Stainless steel mesh; 13. Sealing ring; 2. Platform; 31. X-axis linear module; 32. Y-axis linear module; 33. Z-axis linear module; 34. Claw mechanism; 341. Claw; 342. Pneumatic finger cylinder; 3421. Finger; 343. Second servo motor; 4. Visual detection component; 41. First camera; 411. ; 42. Second camera; 43. Light source; 44. Base; 45. First servo motor; 5. First filter element support plate; 51. First positioning post; 52. Handle; 6. Linear moving slide; 61. Slide plate; 7. Second filter element support plate; 71. Placing groove; 8. Reject collection box; 91. Marking machine; 92. Bracket; 93. Exhaust fan; 10. Rangefinder. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art shall fall within the protection scope of the present utility model.

[0026] Embodiments of the present utility model:

[0027] As Figures 1-7 shown, the automotive filter defect detection device includes a first filter element support plate 5, a second filter element support plate 7, a visual detection component 4, a three-axis linear module, and a claw mechanism 34. The first filter element support plate 5 is used to place the automotive filter 1 to be tested, and the second filter element support plate 7 is used to place the tested automotive filter 1. The first filter element support plate 5, the second filter element support plate 7, the visual detection component 4, and the three-axis linear module are all located on the platform 2. There is also a cover body and a sliding door structure above the platform 2 (this part has nothing to do with the innovative points of the present model and is hidden in the figure; this part can adopt the existing ones). The first filter element support plate 5 and the second filter element support plate 7 are movable and are taken and placed manually. Loading and unloading rely on manual assistance, and the detection process is automatic.

[0028] A plurality of first positioning posts 51 are provided on the first filter element support plate 5, and the first positioning posts 51 are for the automotive filter element 1 to be measured to be sleeved from top to bottom. The first filter element support plate 5 is integrally rectangular, and a handle 52 is respectively provided on opposite sides. The first positioning posts 51 are distributed in rows and columns. The automotive filter element 1 to be measured is pre-installed, and then the first filter element support plate 5 is manually placed at a set position on the platform 2 for the gripper mechanism 34 to grab. The gripper mechanism 34 grabs one automotive filter element 1 at a time.

[0029] Figure 2 As shown, the three-axis linear module is a prior art with a relatively mature structure and principle. The three-axis linear module includes an X-axis linear module 31, a Y-axis linear module 32, and a Z-axis linear module 33, which can perform actions in three directions of the X, Y, and Z axes. The end of the Z-axis linear module 33 is connected to the gripper mechanism 34 for driving the gripper mechanism 34 to perform lifting actions. The gripper mechanism 34 includes a pair of grippers 341 for gripping the automotive filter element 1 to be measured from the first filter element support plate 5 to the detection station, and for gripping and sending the automotive filter element 1 from the corresponding detection station to the second filter element support plate 7.

[0030] Figure 2 and 3 As shown, the vision detection component 4 is located behind the first filter element support plate 5. The vision detection component 4 includes a base 44, a first camera 41, and a second camera 42. The base 44 is for the automotive filter element 1 to be measured to be placed. Second positioning posts are provided on the base 44, and the second positioning posts are for the automotive filter element 1 to be placed vertically. The principle of the second positioning posts is the same as that of the above-mentioned first positioning posts 51.

[0031] The first camera 41 is used to detect the height position of the sealing ring 13 on the automotive filter element 1, that is, to measure whether the installation position of the sealing ring is qualified. The second camera 42 is used to detect the appearance defects of the automotive filter element 1. The first camera 41 is located on the right side of the base 44, and the second camera 42 is located behind the base 44, and a light source 43 is provided. The base 44 is rotatable, and the bottom of the base 44 is driven by a first servo motor 45. Since the appearance to be measured of the automotive filter element 1 is four stainless steel mesh areas distributed on the outer peripheral surface, the base 44 needs to be rotatable, and the second camera 42 is used to take pictures of each side of the stainless steel mesh area respectively. It can be set that the base 44 rotates once every 90 degrees, and a total of 4 images are taken; it can also be set that the base 44 rotates once every 45 degrees, and a total of 8 images are taken. The more image-taking times, the more accurate the detection. As for the image processing method after taking pictures, it is not the protection content of the present invention.

[0032] Figure 3As shown in the figure, a pair of clamping jaws 341 are respectively connected to two fingers 3421 of a pneumatic finger cylinder 342. The pneumatic finger cylinder 342 is a prior art device, and only a suitable stroke needs to be selected. In this embodiment, a clamping jaw structure is designed to match the size of the automotive filter element 1 to be measured, and the principle is based on the prior art. The clamping jaw has an arc portion for mating with the outer peripheral surface of the automotive filter element 1. When the pneumatic finger cylinder 342 operates, the two clamping jaws open and close to grasp or release the filter element.

[0033] It is defined that the vision detection component 4 is in the first detection station. The automotive filter element defect detection device further includes a second detection station, as Figure 7 shown. The second detection station is provided with a rangefinder 10 for measuring the height of the automotive filter element 1, that is, the overall height dimension of the automotive filter element 1. In this embodiment, an existing laser rangefinder 10 is selected. After the measurement is completed at the first detection station, if the measurement is qualified, the automotive filter element 1 is transferred to the second detection station by using a three-axis linear module.

[0034] Figure 2 As shown in the figure, the automotive filter element defect detection device further includes a nonconforming product collection box 8 for placing the detected nonconforming automotive filter elements 1. If the measurement at the first detection station shows nonconformity, the nonconforming automotive filter element 1 is transferred to the nonconforming product collection box 8. The nonconforming product collection box 8 is a storage box. When the clamping jaw grasps the automotive filter element 1 above the nonconforming product collection box 8, the clamping jaw 341 releases, and the automotive filter element 1 can fall in. It can be stacked randomly here, reducing the difficulty and saving time.

[0035] Figure 2 and 7 shown. The second detection station is provided with a linear moving slide 6 driven by a servo motor. The linear moving slide 6 is also a prior art device and can be of the synchronous belt type or the lead screw type. The length direction of the linear moving slide 6 is set along the front-back direction. The rangefinder 10 is located above the linear moving slide 6. The rangefinder 10 is fixed to the platform 2 by a corresponding bracket and is located behind the three-axis linear module. A third positioning post is provided on the slide plate 61 of the linear moving slide 6 for the vertical placement of the automotive filter element 1, that is, a sleeving relationship. The principle of the third positioning post is the same as that of the above-mentioned first positioning post 51. Before the measurement, a reference cylinder is set first, and the size of the reference cylinder is measured by the rangefinder 10. Then the automotive filter element 1 is placed for measurement, and the measured size of the automotive filter element 1 is compared with the reference size to determine whether it is qualified. The qualified automotive filter element 1 is sent to a set position by the linear moving slide 6 and then transferred to the second filter element support plate 7 by the three-axis linear module.

[0036] Figure 6As shown, the second filter element support plate 7 is located to the right of the first filter element support plate 5. A plurality of placement grooves 71 are provided on the second filter element support plate 7, and the tested automotive filter element 1 is placed flat in the placement grooves 71, rather than being placed vertically when waiting to be tested. In other embodiments, the second filter element support plate may also adopt the same structure as the first filter element support plate. The second filter element support plate 7 is also in the shape of a rectangular plate, and the length direction of the placement groove 71 is arranged in the front-rear direction, and its size is adapted to the automotive filter element 1, and a profiling design is carried out. Since the flat placement method is adopted, after the clamping jaw mechanism 34 grabs the automotive filter element 1, it first lifts upward and disengages from the linear moving slide 6. When waiting to reach the area of the second filter element support plate 7, the automotive filter element 1 needs to be tilted at a certain angle, and then the clamping jaws are loosened, and the automotive filter element 1 can fall into the corresponding placement groove 71.

[0037] Figure 3 As shown, the cylinder block of the pneumatic finger cylinder 342 is connected to a rotating plate, and the rotating plate is in transmission connection with a second servo motor 343. The second servo motor 343 is used to drive the rotating plate to rotate, so that the cylinder block of the pneumatic finger cylinder 342 swings at a certain angle, thereby changing the inclination angle of the clamping jaws. The second servo motor 343 is fixed to the end of the Z-axis linear module 33 through a motor seat.

[0038] Figure 1 and 7 As shown, further, a marking machine 91 can also be arranged in the area of the linear moving slide 6. After the height parameter of the automotive filter element 1 is measured by the rangefinder 10 and is qualified, then the linear moving slide 6 drives the automotive filter element 1 to continue to move backward a set distance, that is, the marking station. The marking machine 91 adopts a laser marking machine 91, which is fixed to the platform 2 through a bracket 92. The laser marking machine 91 is located directly above the linear moving slide 6 and marks the top of the qualified automotive filter element 1. After marking is completed, the linear moving slide 6 drives the automotive filter element 1 to move forward to a set position for the clamping jaws to grab, and then sends it to the second filter element support plate 7. If the automotive filter element 1 is measured to be unqualified by the rangefinder 10, then no marking is carried out, and the linear moving slide 6 drives the automotive filter element 1 to move forward to a set position for the clamping jaws to grab, and then sends it to the unqualified product collection box 8.

[0039] Further, an exhaust fan 93 can also be arranged near the marking machine 91. The exhaust fan 93 sucks away the flue gas generated during the marking process and discharges it to the outside of the device through a gas pipeline. A filter element is provided at the end of the gas pipeline, which is composed of, for example, filter cotton, activated carbon, etc., to filter the flue gas. The filtering technology is relatively conventional and will not be further described in detail.

[0040] In other embodiments, two sets of three-axis linear modules can also be arranged on the platform, which are respectively used in the areas corresponding to the first detection station and the second detection station.

Claims

1. An automobile filter element defect detection device, characterized in that: It includes a first filter element pallet, a second filter element pallet, a vision inspection component, a three-axis linear module and a gripper mechanism. The first filter element pallet is used to place the automotive filter element to be tested, and the second filter element pallet is used to place the tested automotive filter element. The three-axis linear module includes an X-axis linear module, a Y-axis linear module and a Z-axis linear module. The end of the Z-axis linear module is connected to the gripper mechanism. The gripper mechanism includes a pair of grippers, which are used to grip the automotive filter element to be tested from the first filter element pallet to the inspection station, and to grip and send the automotive filter element from the inspection station to the second filter element pallet. The vision inspection component includes a base, a first camera and a second camera. The base is used for placing the automotive filter element to be tested. The first camera is used to detect the height position of the sealing ring on the automotive filter element, and the second camera is used to detect the appearance defects of the automotive filter element. The base is rotatable.

2. The automotive filter defect detection device according to claim 1, characterized in that: A plurality of first positioning posts are provided on the first filter element pallet, and the first positioning posts are for the automotive filter element to be tested to be sleeved from top to bottom.

3. The automotive filter defect detection device according to claim 1, characterized in that: The pair of grippers are respectively connected to the two fingers of a pneumatic finger cylinder. The grippers have arc portions for cooperating with the outer peripheral surface of the automotive filter element.

4. The automotive filter defect detection device according to claim 1, characterized in that: Second positioning posts are provided on the base, and the second positioning posts are for the automotive filter element to be placed vertically. The bottom of the base is driven by a servo motor.

5. The automotive filter defect detection device according to claim 1, characterized in that: The vision inspection component is at the first inspection station. The automotive filter element defect detection device further includes a second inspection station, and a rangefinder is provided at the second inspection station for measuring the height of the automotive filter element.

6. The automotive filter defect detection device according to claim 5, wherein: A linear moving slide is provided at the second inspection station. Third positioning posts are provided on the slide plate of the linear moving slide, and the third positioning posts are for the automotive filter element to be placed vertically. The rangefinder is located above the linear moving slide.

7. The automotive filter defect detection device according to claim 1, wherein: A plurality of placement grooves are provided on the second filter element pallet, and the placement grooves are for the tested automotive filter element to be placed flat.

8. The automotive filter defect detection device according to claim 7, wherein: The pair of grippers are respectively connected to the two fingers of a pneumatic finger cylinder. The grippers have arc portions for cooperating with the outer peripheral surface of the automotive filter element. The cylinder body of the pneumatic finger cylinder is connected to a rotating plate, and the rotating plate is in transmission connection with a servo motor. The servo motor is used to drive the rotating plate to rotate so that the cylinder body swings by a certain angle.

9. The automotive filter defect detection device according to claim 1, wherein: The automotive filter element defect detection device further includes a nonconforming product collection box for putting the detected nonconforming automotive filter elements.

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