Double-track double-sided AOI automatic detection equipment

Abstract

The utility model relates to the technical field of optical detection equipment, and particularly discloses double-track double-sided AOI (automatic optical inspection) automatic detection equipment, which comprises a rack, a track transmission mechanism and a mobile detection mechanism, the rail transmission mechanism comprises a guide rail for bearing a to-be-detected product and a first driving piece for driving the to-be-detected product to reciprocate on the guide rail; the mobile detection mechanism comprises an industrial camera assembly arranged on the rack and used for collecting images of the to-be-detected product, and a second driving piece driving the industrial camera assembly to move in a reciprocating mode. The mobile detection mechanism is used for detecting the two faces of the to-be-detected product. The two sets of track transmission mechanisms are arranged to drive the to-be-detected product to move into or out of the detection equipment, the movable detection mechanisms are arranged above and below the to-be-detected product, in the conveying process of the track transmission mechanisms, image collection and data comparison work can be conducted on the two faces of the to-be-detected product, it is guaranteed that defects of the to-be-detected product are recognized as early as possible, and the detection efficiency is improved. The working efficiency is improved and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of optical detection equipment, and in particular discloses a double-track double-sided AOI automatic detection equipment. Background Art

[0002] AOI inspection equipment is a device that detects common defects encountered in welding production based on optical principles. When conducting inspections, the machine automatically scans the PCB board through a camera, collects images, compares the tested solder joints with qualified parameters in the database, and marks the defects through a display or automatic labeling for maintenance personnel to adjust.

[0003] AOI inspection equipment in the prior art often adopts a single-sided single-track or double-sided single-track inspection method. The former often needs to use an additional flipping structure to flip the product to be tested when inspecting the second side of the product to be tested, which can easily cause defects in the product to be tested. Although the latter does not need to use a flipping mechanism to realize the inspection of the product to be tested, due to the single-track inspection method, only one product can be inspected at a time, and the production efficiency is low. Utility Model Content

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a

[0005] To achieve the above-mentioned purpose, the utility model provides a double-track double-sided AOI automatic inspection device, comprising a frame, a track transmission mechanism and a mobile inspection mechanism arranged on the frame;

[0006] The track transmission mechanism includes a guide track for carrying the products to be tested, and a first driving member for driving the products to be tested to move back and forth on the guide track. The track transmission mechanism is used to transfer at least two products to be tested to the mobile testing mechanism for AOI testing, and to move the tested products out of the testing equipment.

[0007] The mobile detection mechanism includes an industrial camera component movably arranged on a frame for collecting images of the product to be tested, and a second driving component that drives the industrial camera component to reciprocate relative to the product to be tested. The mobile detection mechanism is used to detect different surfaces of the product to be tested.

[0008] Furthermore, the number of the guide rails is two, and the two guide rails are respectively located on two sides of the product to be tested and extend along the X-axis direction.

[0009] Furthermore, the first driving member includes a first driving motor, a first transmission wheel group arranged on two guide rails, and a first transmission belt arranged on the first transmission wheel group. The first transmission belt is located between the guide rails and the product to be tested. The first driving motor drives the first transmission belt to rotate via the first transmission wheel group. The rotating first transmission belt is used to transfer the product to be tested and inspect the finished product.

[0010] Furthermore, the mobile detection mechanism includes two groups of screw modules, and the industrial camera assembly is set on the frame to reciprocate along the X-axis and Y-axis directions respectively through the two groups of screw modules. The second driving member is transmission-connected to the screw module, and the second driving member drives the industrial camera assembly to reciprocate along the X-axis and Y-axis directions on the frame through the screw module. The mobile industrial camera assembly is used to detect the products to be tested transported by the track transmission mechanism.

[0011] Furthermore, the screw module includes a first screw and a movable plate threadedly connected to the first screw, the industrial camera assembly is fixedly connected to the movable plate, the second driving member includes two second driving motors, the output shafts of the two second driving motors are respectively connected to the screws, and the extension directions of the screws in the two sets of screw modules are respectively extended along the X-axis and the Y-axis.

[0012] Furthermore, the mobile detection mechanism is provided with two groups, one group of mobile detection mechanism is located above the product to be tested, and the other group of mobile detection mechanism is located below the product to be tested.

[0013] Furthermore, the track conveying mechanism is provided with two groups, and the two groups of track conveying mechanisms are symmetrically arranged with respect to the moving directions of the product to be tested and the tested finished product.

[0014] Furthermore, the dual-track double-sided AOI automatic inspection equipment also includes a width adjustment mechanism used in conjunction with the track transmission mechanism, the width adjustment mechanism includes a third driving member and two second screw rods transmission-connected to the third driving member, a support frame is provided on the guide track, the support frame is screwed to the second screw rod, the third driving member drives the support frame to reciprocate via the second screw rod, and the reciprocating support frame drives one guide track to approach or move away from another guide track adjacent to it.

[0015] Furthermore, the third driving member includes a third driving motor and a pulley group connected to the third driving motor. The two second screw rods are extended along the Y-axis direction, and the support frame and the second screw rods are both arranged at both ends of the length direction of the guide rail; the third driving motor drives the two second screw rods to rotate through the pulley group.

[0016] Furthermore, the width adjustment mechanism is provided in multiple groups, and each group of width adjustment mechanism is used to drive one of the guide rails to reciprocate along the Y-axis direction.

[0017] The beneficial effects of the utility model are as follows: a dual-track double-sided AOI automatic inspection equipment, comprising a frame, a track transmission mechanism arranged on the frame, and a mobile inspection mechanism; the track transmission mechanism comprises a guide track for carrying the product to be inspected, and a first driving member for driving the product to be inspected to move back and forth on the guide track, and the track transmission mechanism is provided with at least two groups; the mobile inspection mechanism comprises an industrial camera assembly movably arranged on the frame for collecting images of the product to be inspected, and a second driving member for driving the industrial camera assembly to move back and forth relative to the product to be inspected, and the mobile inspection mechanism is used to inspect different surfaces of the product to be inspected. By setting up two groups of track transmission mechanisms to drive the product to be inspected to move in or out of the inspection equipment, mobile inspection mechanisms are arranged above and below the product to be inspected, and image acquisition and data comparison can be performed on the two surfaces of the product to be inspected during the transportation of the track transmission mechanism, thereby ensuring the early identification of defects in the product to be inspected, improving work efficiency, and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the internal structure of the double-track double-sided AOI inspection equipment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the mobile detection mechanism of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the track transmission mechanism and the width adjustment mechanism of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the two groups of mobile detection mechanisms of the utility model;

[0022] Figure 5 It is a schematic diagram of the overall structure of the double-track double-sided AOI inspection equipment of the utility model;

[0023] Reference numerals include:

[0024] 1—Frame 2—Track transmission mechanism 3—Mobile detection mechanism

[0025] 4—Guide rail 5—First drive member 6—Industrial camera assembly

[0026] 7—Second driving member 8—Width adjustment mechanism 12—Chassis

[0027] 13-gantry 14-inspection door 15-support foot

[0028] 131 - guide rail 31 - screw rod module 311 - first screw rod

[0029] 312—moving plate 41—support frame 51—first driving motor

[0030] 52—first transmission wheel set 53—first transmission belt 61—guide slider

[0031] 71—second drive motor 81—third drive member 82—second screw rod

[0032] 811—third drive motor 812—pulley set DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0034] See also Figures 1 to 5 As shown, a double-track double-sided AOI automatic inspection device of the utility model comprises a frame 1, a track transmission mechanism 2 and a mobile inspection mechanism 3 arranged on the frame 1;

[0035] The track transmission mechanism 2 includes a guide track 4 for carrying the products to be tested, and a first driving member 5 for driving the products to be tested to move back and forth on the guide track 4. The track transmission mechanism 2 is used to transfer at least two products to be tested to the mobile testing mechanism 3 for AOI testing, and to move the tested products out of the testing equipment;

[0036] The mobile detection mechanism 3 includes an industrial camera assembly 6 movably arranged on the frame 1 for collecting images of the product to be tested, and a second driving member 7 that drives the industrial camera assembly 6 to reciprocate relative to the product to be tested. The mobile detection mechanism 3 is used to detect different surfaces of the product to be tested.

[0037] In this embodiment, a chassis 12 formed by sheet metal parts is arranged outside the frame 1, and the chassis 12 has a feed port and a discharge port (not shown in the figure). When in use, the product to be tested is placed into the wire track through the feed port, and the first driving member 5 drives the product to be tested to move to the mobile detection mechanism 3. The mobile detection mechanism 3 is provided with two groups and is respectively located above and below the product to be tested. The industrial camera component 6 in the mobile detection mechanism 3 collects image information and compares it with the good product information in the system. If the product to be tested has defects, the defects will be marked and displayed on the display screen. After that, the track transmission mechanism 2 moves the inspected product out of the equipment through the discharge port.

[0038] In this embodiment, the equipment also has a limiting mechanism for fixing the product to be tested, and a deceleration sensing mechanism is arranged at the feed port and the discharge port. After the deceleration sensing mechanism senses the product, it will control the driving part to decelerate, and then the limiting mechanism will limit the product on the guide track 4.

[0039] Specifically, there are two guide rails 4, which are respectively located on both sides of the product to be tested and extend along the X-axis direction. In this embodiment, grooves are provided on the two guide rails, and the product to be tested can reciprocate in the grooves.

[0040] Specifically, the first driving member 5 includes a first driving motor 51, a first transmission wheel group 52 provided on two guide rails 4, and a first transmission belt 53 provided on the first transmission wheel group 52. The first transmission belt 53 is located between the guide rails 4 and the product to be tested. The first driving motor 51 drives the first transmission belt 53 to rotate via the first transmission wheel group 52. The rotating first transmission belt 53 is used to transfer the product to be tested and the finished product to be tested. In this embodiment, the first transmission wheel group 52 is a driving wheel and a plurality of driven wheels. The first transmission belt 53 is sleeved on the driving wheel and the driven wheels. The first driving motor 51 drives the driving wheel to rotate, drives the driven wheel to rotate, and then rotates the first transmission belt 53. The product to be tested is placed on the first transmission belt 53 and reciprocates along the X-axis with the help of the friction force of the transmission belt.

[0041] Specifically, the mobile detection mechanism 3 includes two groups of screw modules 31, and the industrial camera assembly 6 is set on the frame 1 to reciprocate along the X-axis and Y-axis directions via the two groups of screw modules 31. The second driving member 7 is transmission-connected with the screw module 31. The second driving member 7 drives the industrial camera assembly 6 to reciprocate along the X-axis and Y-axis directions on the frame 1 via the screw module 31. The mobile industrial camera assembly 6 is used to detect the products to be tested transported by the track transmission mechanism 2.

[0042] By using two sets of screw modules 31 to control the reciprocating movement of the industrial camera along the X-axis and the Y-axis, the detection range of the industrial camera can be made more flexible, and the screw module 31 is made by a precision grinding process to ensure the accuracy of the image acquisition. In this embodiment, a gantry 13 is provided on the frame 1, and the mobile detection mechanism 3 is provided on the gantry 13. The gantry 13 has a simple structure and is stable and reliable. Its application in this embodiment can ensure structural stability and save production costs.

[0043] Specifically, the screw module 31 includes a first screw 311, a moving plate 312 screwed to the first screw 311, the industrial camera assembly 6 is fixedly connected to the moving plate 312, the second drive member 7 includes two second drive motors 71, the output shafts of the two second drive motors 71 are respectively connected to the screws, and the extension directions of the screws in the two sets of screw modules 31 are respectively extended along the X-axis and the Y-axis. In this embodiment, the X and Y axis directions of the gantry 13 are both provided with guide rails 131, the industrial camera assembly 6 has a guide slider 61, and the sliding cooperation of the slide rail slider is used together with the screw module 31, which can reduce the friction between the components in the mobile detection mechanism 3 and improve the work efficiency.

[0044] Specifically, the mobile detection mechanism 3 is provided with two groups, one group of mobile detection mechanisms 3 is located above the product to be tested, and the other group of mobile detection mechanisms 3 is located below the product to be tested. The industrial camera assembly 6 in this embodiment adopts high-precision algorithms and image processing technology, which can quickly and accurately detect defects on the front and back of the product, greatly improving work efficiency.

[0045] Specifically, the track transmission mechanism 2 is provided with two groups, and the two groups of track transmission mechanisms 2 are symmetrically arranged relative to the moving directions of the product to be tested and the finished product to be tested. The setting of the two groups of track transmission mechanisms 2 can realize the alternating transmission of the product to be tested, reducing the time required for a single track transmission, and cooperate with the two mobile detection mechanisms 3 to further improve the detection efficiency; in addition, during the detection process, if there is only one track transmission, when the product to be tested is blocked or waiting at a certain link, the entire production process will be affected, and the dual-track transmission can effectively disperse the transmission pressure, reduce the possibility of congestion, and has high flexibility.

[0046] Specifically, the dual-track double-sided AOI automatic inspection equipment also includes a width adjustment mechanism 8 used in conjunction with the track transmission mechanism 2, the width adjustment mechanism 8 includes a third driving member 81 and two second screw rods 82 that are transmission-connected to the third driving member 81, a support frame 41 is provided on the guide track 4, the support frame 41 is screwed to the second screw rod 82, the third driving member 81 drives the support frame 41 to reciprocate via the second screw rod 82, and the reciprocating support frame 41 drives one guide track 4 to approach or move away from another guide track 4 adjacent to it.

[0047] The setting of the width adjustment mechanism 8 enables the track transmission mechanism 2 to adapt to products to be tested of different sizes, thereby improving the versatility and flexibility of the equipment. Compared with the transmission track with non-adjustable width, this solution reduces the replacement time cost, can adapt to products to be tested of different sizes more quickly, reduces the time for equipment adjustment and waiting, and improves production efficiency.

[0048] Specifically, the third driving member 81 includes a third driving motor 811 and a pulley group 812 connected to the third driving motor 811. The two second screw rods 82 are extended along the Y-axis direction, and the support frame 41 and the second screw rods 82 are both arranged at both ends of the length direction of the guide rail 4; the third driving motor 811 drives the two second screw rods 82 to rotate through the pulley group 812.

[0049] In this embodiment, the first drive motor 51, the second drive motor 71, and the third drive motor 811 are all stepper motors, and the pulley group 812 includes a plurality of rollers rotatably arranged on the frame 1, and the plurality of rollers are arranged at intervals, and the position is adjustable, and the belts arranged on the rollers, the third drive motor 811 drives one of the rollers to rotate, and the belt drives the remaining rollers to rotate, and the two second screw rods 82 are respectively connected to two of the rollers. This design enables the screw rod to obtain a larger speed range, which helps to quickly adjust the width of the wire track. It is also easy to maintain and replace, easy to install and adjust, and has high stability.

[0050] Specifically, the width adjustment mechanism 8 is provided with multiple groups, and each group of width adjustment mechanisms 8 is used to drive one of the guide rails 4 to reciprocate along the Y-axis direction. In this embodiment, there are four guide rails 4, and the width adjustment mechanism 8 is provided with three groups corresponding to three guide rails 4 respectively, and another guide rail 4 is fixedly set on the frame 1. Through this design, different guide rails 4 can be moved separately, further improving the flexibility of the track transmission mechanism 2. In this embodiment, an inspection door 14 for testing and repairing equipment is opened on the chassis 12, and a movable support foot 15 is provided at the bottom of the chassis 12 to facilitate the convenient movement of the equipment.

[0051] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A double-track double-sided AOI automatic inspection device, comprising a frame (1), a track transmission mechanism (2) and a mobile inspection mechanism (3) arranged on the frame (1); characterized in that: The track transmission mechanism (2) comprises a guide track (4) for carrying the products to be tested, and a first driving member (5) for driving the products to be tested to move back and forth on the guide track (4). The track transmission mechanism (2) is used to transfer at least two products to be tested to the mobile testing mechanism (3) for AOI testing, and to move the tested products out of the testing device. The mobile detection mechanism (3) comprises an industrial camera assembly (6) movably arranged on a frame (1) for collecting images of a product to be detected, and a second driving member (7) for driving the industrial camera assembly (6) to reciprocate relative to the product to be detected. The mobile detection mechanism (3) is used to detect different surfaces of the product to be detected.

2. The double-track double-sided AOI automatic inspection equipment according to claim 1, characterized in that: The number of the guide rails (4) is two, and the two guide rails (4) are respectively located on two sides of the product to be tested and extend along the X-axis direction.

3. The double-track double-sided AOI automatic inspection equipment according to claim 2, characterized in that: The first driving member (5) comprises a first driving motor (51), a first transmission wheel group (52) arranged on two guide rails (4), and a first transmission belt (53) arranged on the first transmission wheel group (52); the first transmission belt (53) is located between the guide rails (4) and the product to be tested; the first driving motor (51) drives the first transmission belt (53) to rotate via the first transmission wheel group (52); the rotating first transmission belt (53) is used to transfer the product to be tested and the finished product to be tested.

4. The double-track double-sided AOI automatic inspection equipment according to claim 1, characterized in that: The mobile detection mechanism (3) comprises two groups of screw modules (31), and the industrial camera assembly (6) is arranged on the frame (1) to reciprocate along the X-axis and Y-axis directions respectively via the two groups of screw modules (31). The second driving member (7) is connected to the screw module (31) in a transmission manner. The second driving member (7) drives the industrial camera assembly (6) to reciprocate along the X-axis and Y-axis directions on the frame (1) via the screw module (31). The mobile industrial camera assembly (6) is used to detect the product to be tested transported by the track transmission mechanism (2).

5. The double-track double-sided AOI automatic inspection equipment according to claim 4, characterized in that: The screw module (31) comprises a first screw (311) and a movable plate (312) screwed to the first screw (311); the industrial camera assembly (6) is fixedly connected to the movable plate (312); the second drive member (7) comprises two second drive motors (71); the output shafts of the two second drive motors (71) are respectively connected to the first screw (311); and the extension directions of the screws in the two sets of screw modules (31) are respectively extended along the X-axis and the Y-axis.

6. The double-track double-sided AOI automatic inspection equipment according to claim 1, characterized in that: The mobile detection mechanism (3) is provided in two groups, one group of mobile detection mechanisms (3) is located above the product to be tested, and the other group of mobile detection mechanisms (3) is located below the product to be tested.

7. The double-track double-sided AOI automatic inspection equipment according to claim 1, characterized in that: The track transmission mechanism (2) is provided with two groups, and the two groups of track transmission mechanisms (2) are symmetrically arranged with respect to the moving directions of the product to be tested and the tested product.

8. The double-track double-sided AOI automatic inspection equipment according to claim 2, characterized in that: The double-track double-sided AOI automatic inspection equipment further comprises a width adjustment mechanism (8) used in conjunction with the track transmission mechanism (2), the width adjustment mechanism (8) comprising a third driving member (81) and two second screw rods (82) drivingly connected to the third driving member (81), a support frame (41) being arranged on the guide track (4), the support frame (41) being screwed to the second screw rods (82), the third driving member (81) driving the support frame (41) to reciprocate via the second screw rods (82), and the reciprocating support frame (41) drives one guide track (4) to approach or move away from another guide track (4) adjacent thereto.

9. The double-track double-sided AOI automatic inspection equipment according to claim 8, characterized in that: The third driving member (81) comprises a third driving motor (811) and a pulley group (812) connected to the third driving motor (811); the two second screw rods (82) are extended along the Y-axis direction; the support frame (41) and the second screw rods (82) are both located at two ends of the guide track (4) in the length direction; the third driving motor (811) drives the two second screw rods (82) to rotate via the pulley group (812).

10. The double-track double-sided AOI automatic inspection equipment according to claim 8, characterized in that: The width adjustment mechanisms (8) are provided in multiple groups, and each group of width adjustment mechanisms (8) is used to drive one of the guide rails (4) to move back and forth along the Y-axis direction.

Images