Automatic detection device after surface mounting of circuit board

Abstract

The utility model relates to the technical field of circuit board detection, in particular to an automatic detection device for a circuit board after surface mounting, which comprises a workbench, a conveying frame is arranged in the middle of the upper end of the workbench, a conveying belt is arranged in the middle of the upper end of the conveying frame, and sliding grooves are formed in the front portion and the rear portion of the upper end of the conveying frame. A plurality of limiting mechanisms are jointly slidably connected into the two sliding grooves, an adjusting mechanism is fixedly connected to the middle rear portion of the upper end of the workbench, an extension plate is fixedly connected to the upper portion of the front end of the adjusting mechanism, a photographing detection mechanism is fixedly installed at the front end of the extension plate, and supporting legs are fixedly installed at the four corners of the lower end of the workbench. According to the automatic detection device for the circuit board after surface mounting, the circuit board can be prevented from deviating, the detection device can accurately focus and shoot a preset detection area, it is guaranteed that the positions and the angles of images shot each time are consistent, and the detection accuracy and repeatability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit board detection, especially relates to automatic detection device after circuit board patching. BACKGROUND

[0002] With the rapid development of electronic technology, the integration of circuit board is higher and higher, surface mount technology (SMT) has been widely used in electronic manufacturing industry because of its high assembly density, small electronic product size, light weight, high reliability, strong anti-vibration ability and many other advantages. Through SMT technology, various electronic components such as resistors, capacitors, chips and other electronic components can be accurately mounted on the circuit board to realize complex circuit function. After the completion of circuit board patching, image processing and algorithm technology are needed to detect the quality of the circuit board. In the detection process, the image of the circuit board welding is captured by the camera, and then the image is processed to judge whether the welding quality is qualified, so as to ensure the performance and reliability of the circuit board.

[0003] The existing automatic detection device after circuit board patching is directly placed on the conveying belt and conveyed to the area below the detection mechanism for photographing detection in the use process. The position of the circuit board on the conveying belt may be offset due to the vibration, speed change or other external force of the conveying belt, which may cause inaccurate focusing or complete circuit board shooting when photographing, affecting the accuracy of the detection result. Therefore, we introduce a new automatic detection device after circuit board patching. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide an automatic detection device after circuit board patching, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the utility model adopts the technical scheme that:

[0006] The automatic detection device after circuit board patching comprises a workbench, a conveying frame is arranged at the middle of the upper end of the workbench, a conveying belt is arranged at the middle of the upper end of the conveying frame, sliding grooves are arranged at the front and rear upper ends of the conveying frame, a plurality of limiting mechanisms are slidably connected in the sliding grooves, an adjusting mechanism is fixedly connected to the middle rear upper end of the workbench, an extension plate is fixedly connected to the front end upper part of the adjusting mechanism, a photographing detection mechanism is fixedly installed at the front end of the extension plate, supporting legs are fixedly installed at the lower end of the workbench, and supporting columns are fixedly installed at the lower end of the conveying frame.

[0007] Preferably, the limiting mechanism includes a limiting seat, a limiting slot is formed in the upper end of the limiting seat, pulleys are installed at the four corners of the lower end of the limiting seat, a taking-out slot is formed in the middle of the front end of the limiting seat, a movable slot is formed in the rear slot wall of the limiting slot, springs are fixedly connected to the left part and the right part of the rear slot wall of the movable slot, a pressing plate is fixedly connected to the front ends of the two springs, protrusions are fixedly connected to the left end rear part and the right end rear part of the pressing plate, and a pressing pad is fixedly connected to the front end of the pressing plate.

[0008] Preferably, the lower end of the limiting seat is in contact with the conveying belt, and the two pulleys are in sliding connection with the two sliding grooves, respectively.

[0009] Preferably, the pressing plate is in movable connection with the movable slot, the two protrusions are in sliding connection with the left slot wall and the right slot wall of the movable slot, respectively, and the pressing pad is located in the limiting slot.

[0010] Preferably, the adjusting mechanism includes a driving seat, a driving slot is formed in the upper end of the driving seat, connecting slots are formed in the upper part of the left end and the upper part of the right end of the driving seat, a cylinder is fixedly installed in the middle of the lower slot wall of the driving slot, an adjusting plate is fixedly installed at the output end of the cylinder, and connecting blocks are fixedly connected to the lower part of the left end and the lower part of the right end of the adjusting plate.

[0011] Preferably, the lower end of the driving seat is fixedly connected with the workbench, and the upper part of the front end of the adjusting plate is fixedly connected with the extending plate.

[0012] Preferably, the adjusting plate is in movable connection with the driving slot, and the two connecting blocks are in sliding connection with the two connecting slots, respectively.

[0013] Compared with the prior art, the utility model has the advantages of the following:

[0014] 1、Through the limiting mechanism, the circuit board after the patch is placed in the limiting slot and is pressed by the pressing plate under the action force of the spring, then the four pulleys at the lower part of the limiting seat are placed in the two sliding grooves on the conveying frame, respectively, so that the circuit board can be limited on the conveying belt for transmission and automatic detection, the circuit board can be prevented from deviating, the photographing detection mechanism can accurately focus and shoot the preset detection area, the image position and angle of each shooting are consistent, and the detection accuracy and repeatability are improved.

[0015] 2. By setting an adjustment mechanism, the cylinder is activated, which pushes the adjustment plate upward. The two connecting blocks slide inside the two connecting slots respectively, allowing the height of the photographic inspection mechanism to be adjusted. Different types and specifications of circuit boards have different thicknesses. The adjustable height of the photographic inspection mechanism can maintain a suitable distance from the surface of the circuit board, ensuring accurate lens focus and clear images. This facilitates accurate identification of details such as components, lines, and solder joints on the circuit board, avoiding inspection errors caused by inaccurate focusing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the automatic detection device after circuit board mounting according to this utility model.

[0017] Figure 2 This is a schematic diagram of the planar structure of the automatic detection device for circuit board mounting according to this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the limiting mechanism of the automatic detection device after circuit board mounting according to this utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the adjustment mechanism of the automatic detection device after circuit board mounting according to this utility model.

[0020] In the diagram: 1. Workbench; 2. Conveyor frame; 3. Conveyor belt; 4. Slide chute; 5. Limiting mechanism; 51. Limiting seat; 52. Limiting groove; 53. Pulley; 54. Removal groove; 55. Movable groove; 56. Spring; 57. Extrusion plate; 58. Protrusion; 59. Extrusion pad; 6. Adjusting mechanism; 61. Drive seat; 62. Drive groove; 63. Connecting groove; 64. Cylinder; 65. Adjusting plate; 66. Connecting block; 7. Extension plate; 8. Photo detection mechanism; 9. Support leg; 10. Support column. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of the utility model, it is to explain, unless there is definite and limited, the term " install " " set with " " connection " and the like, should do broad sense understanding, for example " connection " can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can through the intermediate medium indirectly connect, can be two element inside intercommunication. For ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according of the specific circumstances.

[0024] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0025] Automatic detection device after circuit board paster, including workbench 1, the upper end middle part of workbench 1 is provided with conveying frame 2, the upper end middle part of conveying frame 2 is provided with conveying belt 3, the upper end front part and the upper end rear part of conveying frame 2 are all provided with sliding slot 4, a plurality of limiting mechanisms 5 are connected with the inside of two sliding slots 4 and slide together, the upper end middle rear part of workbench 1 is fixedly connected with adjusting mechanism 6, the front end upper part of adjusting mechanism 6 is fixedly connected with extension plate 7, the front end of extension plate 7 is fixedly installed with photographing detection mechanism 8, the lower end four corners of workbench 1 are all fixedly installed with support leg 9, the lower end four corners of conveying frame 2 are all fixedly installed with support column 10.

[0026] In the embodiment, the limiting mechanism 5 includes a limiting seat 51, a limiting groove 52 is formed in the upper end of the limiting seat 51, pulleys 53 are installed on the four corners of the lower end of the limiting seat 51, a removal groove 54 is formed in the middle of the front end of the limiting seat 51, a movable groove 55 is formed in the rear groove wall of the limiting groove 52, springs 56 are fixedly connected to the left part and the right part of the rear groove wall of the movable groove 55, an extrusion plate 57 is fixedly connected to the front ends of the two springs 56, protrusions 58 are fixedly connected to the left end rear part and the right end rear part of the extrusion plate 57, an extrusion pad 59 is fixedly connected to the front end of the extrusion plate 57, the lower end of the limiting seat 51 is in contact with the conveying belt 3, the two horizontal pulleys 53 are respectively in sliding connection with the two sliding slots 4, the extrusion plate 57 is in penetrating and movable connection with the movable groove 55, the two protrusions 58 are respectively in sliding connection with the left groove wall and the right groove wall of the movable groove 55, and the extrusion pad 59 is located in the limiting groove 52.

[0027] Through the above scheme: the circuit board after paster is placed in the limiting groove 52 and extruded by the extrusion plate 57 under the action of the spring 56, and then the four pulleys 53 at the lower part of the limiting seat 51 are respectively placed in the two sliding slots 4 on the conveying frame 2, so that the circuit board can be limited on the conveying belt 3 for transmission and automatic detection, and the deviation of the circuit board can be avoided.

[0028] In the embodiment, the adjusting mechanism 6 comprises a driving seat 61, a driving groove 62 is formed in the upper end of the driving seat 61, a connecting groove 63 is formed in the upper left end and the upper right end of the driving seat 61, a gas cylinder 64 is fixedly installed in the middle of the lower groove wall of the driving groove 62, an adjusting plate 65 is fixedly installed at the output end of the gas cylinder 64, a connecting block 66 is fixedly connected to the lower left end and the lower right end of the adjusting plate 65, the lower end of the driving seat 61 is fixedly connected with the workbench 1, the upper front end of the adjusting plate 65 is fixedly connected with the extension plate 7, the adjusting plate 65 is movably connected with the driving groove 62, and the two connecting blocks 66 are slidably connected with the two connecting grooves 63.

[0029] Through the above scheme: by starting the gas cylinder 64, the gas cylinder 64 drives the adjusting plate 65 to move upwards, and the two connecting blocks 66 slide in the two connecting grooves 63 respectively, so that the height of the photographing detection mechanism 8 can be adjusted.

[0030] It should be noted that the utility model is an automatic detection device for circuit board after pasting, in the use process, the circuit board after pasting is placed in the limiting groove 52, and the spring 56 drives the extrusion plate 57 to limit and extrude it, then, the four pulleys 53 at the bottom end of the limiting seat 51 are embedded in the double sliding groove 4 design on the conveying frame 2, which ensures that the circuit board can keep stable and not deviate when conveying on the conveying belt 3, and further ensures that the photographing detection mechanism 8 can accurately focus and shoot on the preset detection area, maintains the consistency of the shooting image position and angle, which is very important for improving the accuracy and repeatability of detection, further, by activating the gas cylinder 64, the gas cylinder 64 drives the adjusting plate 65 to rise along the vertical direction, at the same time, the two connecting blocks 66 smoothly slide in the corresponding connecting grooves 63, allowing the height of the photographing detection mechanism 8 to be flexibly adjusted, since different types and specifications of circuit boards have different thicknesses, the adjustability of the height of the photographing detection mechanism 8 ensures that it can maintain an appropriate distance from the surface of the circuit board, which is very important for accurate focusing of the lens, so that a clear image can be taken, which is convenient for accurately identifying various elements, lines and soldering point details on the circuit board, and avoids detection errors caused by focusing errors.

[0031] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. Automatic detection device of the circuit board after the patch, including the workbench (1), its characterized in that: The upper end of the workbench (1) is provided with a conveying frame (2), the upper end of the conveying frame (2) is provided with a conveying belt (3), the upper end of the conveying frame (2) is provided with a chute (4), the upper end of the conveying frame (2) is provided with a chute (4), and the upper end of the conveying frame (2) is provided with a chute (4). The two sliding grooves (4) are slidably connected with a plurality of limiting mechanisms (5), the upper end of the workbench (1) is fixedly connected with an adjusting mechanism (6), the upper end of the adjusting mechanism (6) is fixedly connected with an extension plate (7), the front end of the extension plate (7) is fixedly connected with a photographing detection mechanism (8), the lower end of the workbench (1) is fixedly connected with a supporting leg (9), and the lower end of the conveying frame (2) is fixedly connected with a supporting column (10). The limiting mechanism (5) comprises a limiting seat (51), a limiting groove (52) is formed in the upper end of the limiting seat (51), a pulley (53) is installed at the four corners of the lower end of the limiting seat (51), a taking-out groove (54) is formed in the front end of the limiting seat (51), a movable groove (55) is formed in the rear groove wall of the limiting groove (52), springs (56) are fixedly connected to the left part and the right part of the rear groove wall of the movable groove (55), and the front ends of the two springs (56) are fixedly connected with an extrusion plate (57). The left end rear part and the right end rear part of the extrusion plate (57) are fixedly connected with protruding blocks (58), and the front end of the extrusion plate (57) is fixedly connected with an extrusion pad (59).

2. The apparatus according to claim 1, wherein: The lower end of the limiting seat (51) is in contact with the conveying belt (3), and the two transverse pulleys (53) are respectively connected with the two sliding grooves (4).

3. The apparatus of claim 1, wherein: The extrusion plate (57) is movably connected with the movable groove (55), the two protruding blocks (58) are respectively connected with the left groove wall and the right groove wall of the movable groove (55), and the extrusion pad (59) is located in the limiting groove (52).

4. The apparatus of claim 1, wherein: The adjusting mechanism (6) comprises a driving seat (61), a driving groove (62) is formed in the upper end of the driving seat (61), a connecting groove (63) is formed in the upper end of the left end and the upper end of the right end of the driving seat (61), a cylinder (64) is fixedly installed in the middle of the lower groove wall of the driving groove (62), an adjusting plate (65) is fixedly installed on the output end of the cylinder (64), and a connecting block (66) is fixedly connected to the left lower end and the right lower end of the adjusting plate (65).

5. The apparatus of claim 4, wherein: The lower end of the driving seat (61) is fixedly connected with the workbench (1), and the upper end of the adjusting plate (65) is fixedly connected with the extension plate (7).

6. The apparatus of claim 4, wherein: The adjusting plate (65) is movably connected with the driving groove (62), and the two connecting blocks (66) are respectively connected with the two connecting grooves (63).

Images