Machine vision detection device for weld quality

Abstract

The utility model discloses a machine vision detection device for welding seam quality, which relates to the field of welding seam detection and comprises a supporting bottom plate, bottom cushion blocks are symmetrically and fixedly connected to the bottom surface of the supporting bottom plate in a threaded manner, a horizontal top groove is horizontally formed in the top surface of the supporting bottom plate, and supporting cushion blocks are butted to the top surface of the supporting bottom plate. A clamping top groove is horizontally formed in the top face of the supporting bottom plate, a conveying motor is fixedly arranged on one side edge of the supporting bottom plate, a telescopic vertical rod is in butt joint with the top face of the supporting bottom plate in the vertical direction, a bottom transverse rod is horizontally and fixedly connected to one side edge of the telescopic vertical rod, and an end fixing box is fixedly connected to one end of the bottom transverse rod. A horizontal connecting rod is horizontally arranged on one side edge of the telescopic vertical rod in a butt joint mode, a vertical connecting rod is fixedly connected to the bottom face of the horizontal connecting rod in the vertical direction, a multi-direction adjustable structure is adopted so that the multi-point welding seam detection device can be used for multi-point welding seam detection, and detection of the multi-point welding seam detection device can be more accurate and efficient under mutual cooperation visual detection of the upper face and the lower face.

Description

Technical Field

[0001] This utility model relates to the field of weld inspection technology, specifically a machine vision inspection device for weld quality. Background Technology

[0002] A weld is the joint formed after welding. Seam welding is an important resistance welding method for forming welds. It uses a pair of roller electrodes instead of the cylindrical electrodes used in spot welding, which move relative to the workpiece to create overlapping, sealed weld nuggets. Seam welding is widely used in welding oil drums, cans, radiators, aircraft and fuel tanks, as well as sealed containers in jet engines, rockets, and missiles.

[0003] Currently, the inspection and processing of welds all adopt a single-sided scanning operation structure, which results in insufficient scanning penetration and inaccurate detection. At the same time, the fixed-point scanning structure requires the workpiece to be moved, making the inspection and processing more troublesome. Utility Model Content

[0004] The purpose of this invention is to provide a machine vision inspection device for weld quality, in order to solve the problems mentioned in the background art, that the current weld inspection process uses a single-sided scanning structure, which results in insufficient scanning penetration and inaccurate inspection. At the same time, the fixed-point scanning structure requires the workpiece to be moved, making the inspection process more complicated.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A machine vision inspection device for weld quality includes a support base plate. A bottom pad is symmetrically threaded and fixed to the bottom surface of the support base plate. A horizontal top groove is formed on the top surface of the support base plate, and a support pad is attached to the top surface of the support base plate. A snap-fit ​​top groove is also formed on the top surface of the support base plate. A transmission motor is fixedly mounted on one side of the support base plate. A telescopic upright is vertically connected to the top surface of the support base plate. A bottom crossbar is horizontally fixed to one side of the telescopic upright. An end fixing box is fixedly connected to one end of the bottom crossbar. A horizontal connecting rod is horizontally connected to one side of the telescopic upright. A vertical connecting rod is fixedly connected to the bottom surface of the horizontal connecting rod, and a top fixing box is fixedly connected to the bottom end of the vertical connecting rod. An adjusting screw is horizontally inserted into the inner side of the snap-fit ​​top groove. A bottom snap-fit ​​block is fixedly installed on the bottom surface of the support pad. An inner cylinder is fixedly connected to the inner side of the telescopic upright. A side mounting hole is opened on one side of the telescopic upright. A snap-fit ​​moving block is fixedly connected to the bottom end of the telescopic upright. A mating screw hole is opened on the side of the snap-fit ​​moving block. An installation end block is fixedly installed at one end of the horizontal connecting rod. The main scanning body is fixedly installed on the inner side of the end fixing box and the top fixing box.

[0007] In a preferred embodiment of this utility model, the number of bottom pads is four, and the four bottom pads are all fixedly connected by screws on the top surface to the bottom surface of the support base plate near the four corner screw holes. The horizontal top groove is horizontally opened at the center line of the top surface of the support base plate.

[0008] In a preferred embodiment of this utility model: there are two support pads, and the bottom surfaces of the two support pads are both connected to the top opening end of the horizontal top groove. The top groove is horizontally opened on the top surface of the support base plate near one side. The output end of the transmission motor is horizontally fixedly connected to one end of the adjusting screw.

[0009] In a preferred embodiment of this utility model: the bottom end of the telescopic pole is connected to the top opening end of the snap-fit ​​top groove, the bottom crossbar is horizontally fixed to the side of the telescopic pole near the bottom end using a telescopic rod structure, and one end of the horizontal connecting rod is connected to the opening end of the side mounting hole.

[0010] In a preferred embodiment of this utility model: the vertical connecting rod is vertically fixedly connected at one end away from the telescopic pole, and the vertical connecting rod and the telescopic pole are arranged in parallel to each other. The top fixing box and the end fixing box are arranged in a superimposed and corresponding manner. The bottom end of the bottom locking block is locked in the inner side of the locking top groove, and the side mounting hole is opened on the side of the telescopic pole near the top.

[0011] In a preferred embodiment of this utility model, the bottom end of the snap-fit ​​moving block is snap-fitted onto the inner side of the snap-fit ​​top groove, and is threadedly connected to the outer side of the adjusting screw in conjunction with the screw hole. One end of the mounting end block is fixedly snap-fitted onto the inner side of the side mounting hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention pushes two support blocks on the top surface of the support base plate, causing the bottom locking block on the bottom surface to move along the horizontal top groove. After the two support blocks move to a specified distance, the workpiece to be inspected is placed horizontally at the top of the support blocks. The bottom crossbar is then adjusted to extend and retract, causing one end fixing box to be horizontally positioned at the bottom of the workpiece weld. Then, with the coordinated extension and retraction of the telescopic upright, horizontal connecting rod, and vertical connecting rod, the top fixing box connected to the bottom end is positioned at the top surface of the weld. After the internal main scanning body is activated, visual inspection of the weld is performed through coordinated imaging from both above and below. The rotation of the side transmission motor causes the output end to drive the adjusting screw to rotate, causing the locking block to move horizontally along the locking top groove. This allows the telescopic upright to drive the upper and lower main scanning bodies to slowly move horizontally along the weld for scanning and inspection. The multi-directional adjustable structure allows for multi-point weld inspection, and the coordinated visual inspection from both above and below makes the inspection more accurate and efficient. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 A three-dimensional structural diagram of a machine vision inspection device for weld quality;

[0016] Figure 2 A structural schematic diagram showing the connection details of a three-dimensional cross-section of the support base plate of a machine vision inspection device for weld quality;

[0017] Figure 3 A structural schematic diagram showing the connection details of a three-dimensional cross-section of the telescopic pole of a machine vision inspection device for weld quality;

[0018] Figure 4 This is a structural schematic diagram showing the connection details of the three-dimensional cross-section of the top fixing box of a machine vision inspection device for weld quality.

[0019] In the diagram: 1. Support base plate; 2. Base pad block; 3. Horizontal top groove; 4. Support pad block; 5. Snap-fit ​​top groove; 6. Transmission motor; 7. Telescopic upright; 8. Bottom crossbar; 9. End fixing box; 10. Horizontal connecting rod; 11. Vertical connecting rod; 12. Top fixing box; 13. Adjusting screw; 14. Bottom snap-fit ​​block; 15. Inner cylinder; 16. Side mounting hole; 17. Snap-fit ​​moving block; 18. Mating screw hole; 19. Mounting end block; 20. Main scanning body. Detailed Implementation

[0020] Please see Figure 1 In this embodiment of the present invention, a machine vision inspection device for weld quality includes a support base plate 1. A base pad 2 is symmetrically threadedly fixed to the bottom surface of the support base plate 1. A horizontal top groove 3 is horizontally opened on the top surface of the support base plate 1. There are four base pads 2, each threadedly fixed to the bottom surface of the support base plate 1 near the four corner screw holes via screws on the top surface. The horizontal top groove 3 is horizontally opened at the center line of the top surface of the support base plate 1. A support pad 4 is attached to the top surface of the support base plate 1. A snap-fit ​​top groove 5 is horizontally opened on the top surface of the support base plate 1. A transmission motor 6 is fixedly installed on one side of the support base plate 1. There are two support pads 4, with their bottom surfaces abutting the top opening of the horizontal top groove 3. The snap-fit ​​top groove 5 is horizontally opened on the top surface of the support base plate 1 near one side. The output end of the transmission motor 6 is horizontally fixedly connected to an adjusting screw. At one end of 13, a telescopic upright 7 is vertically connected to the top surface of the supporting base plate 1. A bottom crossbar 8 is horizontally fixed to one side of the telescopic upright 7. An end fixing box 9 is fixed to one end of the bottom crossbar 8. A horizontal connecting rod 10 is horizontally connected to one side of the telescopic upright 7. The bottom end of the telescopic upright 7 is connected to the top opening end of the snap-fit ​​top groove 5. The bottom crossbar 8 is horizontally fixed to the side of the telescopic upright 7 near the bottom end using a telescopic rod structure. One end of the horizontal connecting rod 10 is connected to the opening end of the side mounting hole 16. A vertical connecting rod 11 is vertically fixed to the bottom surface of the horizontal connecting rod 10. A top fixing box 12 is fixed to the bottom end of the vertical connecting rod 11. The vertical connecting rod 11 is vertically fixed to the end away from the telescopic upright 7. The vertical connecting rod 11 and the telescopic upright 7 are arranged parallel to each other. The top fixing box 12 and the end fixing box 9 are arranged in a superimposed and corresponding manner.

[0021] Please see Figure 2-4In this embodiment of the utility model, a machine vision inspection device for weld quality is provided, wherein an adjusting screw 13 is horizontally inserted into the inner side of the snap-fit ​​top groove 5, a bottom snap-fit ​​block 14 is fixedly installed on the bottom surface of the support pad 4, an inner cylinder 15 is vertically fixedly connected to the inner side of the telescopic pole 7, a side mounting hole 16 is opened on one side of the telescopic pole 7, the bottom end of the bottom snap-fit ​​block 14 is snapped into the inner side of the snap-fit ​​top groove 5, and the side mounting hole 16 is opened on the side of the telescopic pole 7 near the top. The bottom end of the retractable pole 7 is fixedly connected to a snap-fit ​​moving block 17. The snap-fit ​​moving block 17 has a mating screw hole 18 on its side. One end of the horizontal connecting rod 10 is fixedly provided with an installation end block 19. The bottom end of the snap-fit ​​moving block 17 is snapped into the inner side of the snap-fit ​​top groove 5. The mating screw hole 18 is threaded into the outer side of the adjusting screw 13. One end of the installation end block 19 is fixedly snapped into the inner side of the side mounting hole 16. The main scanning body 20 is fixedly provided on the inner side of the end fixing box 9 and the top fixing box 12.

[0022] The working principle of this utility model is as follows:

[0023] After pushing the two support pads 4 on the top surface of the support base plate 1, the bottom locking block 14 on the bottom surface moves along the horizontal top groove 3. After the two support pads 4 move to the specified distance, the workpiece to be inspected is placed horizontally at the top of the support pads 4. After controlling and adjusting the bottom crossbar 8 to make it telescopic, the end fixing box 9 at one end is horizontally set at the bottom of the workpiece weld. Then, with the telescopic movement of the telescopic upright 7, the horizontal connecting rod 10 and the vertical connecting rod 11, the top fixing box 12 connected at the bottom end is set at the top surface of the weld. After the main scanning body 20 inside is opened, the weld is visually inspected by taking pictures from the top and bottom. The rotation of the transmission motor 6 on the side causes the output end to drive the adjusting screw 13 to rotate, so that the adjusting screw 13 drives the locking moving block 17 to move horizontally along the locking top groove 5. Thus, the telescopic upright 7 drives the main scanning body 20 on the top and bottom to slowly move horizontally along the weld for scanning and inspection.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A machine vision inspection device for weld quality, comprising a supporting base plate (1), characterized in that, The bottom surface of the supporting base plate (1) is symmetrically threaded and fixedly connected to a bottom pad block (2). The top surface of the supporting base plate (1) is horizontally provided with a horizontal top groove (3). The top surface of the supporting base plate (1) is connected to a supporting pad block (4). The top surface of the supporting base plate (1) is horizontally provided with a snap-fit ​​top groove (5). A transmission motor (6) is fixedly installed on one side of the supporting base plate (1). A telescopic upright (7) is vertically connected to the top surface of the supporting base plate (1). A bottom crossbar (8) is horizontally fixedly connected to one side of the telescopic upright (7). One end of the bottom crossbar (8) is fixedly connected to an end fixing box (9). A horizontal connecting rod (10) is horizontally connected to one side of the telescopic upright (7). The bottom surface of the horizontal connecting rod (10) is vertically fixedly connected to a vertical... A vertical connecting rod (11) is fixedly connected to a top fixing box (12) at its bottom end. An adjusting screw (13) is horizontally inserted into the inner side of the snap-fit ​​top groove (5). A bottom snap-fit ​​block (14) is fixedly installed on the bottom surface of the support pad (4). An inner cylinder (15) is vertically fixedly connected to the inner side of the telescopic upright (7). A side mounting hole (16) is opened on one side of the telescopic upright (7). A snap-fit ​​moving block (17) is fixedly connected to the bottom end of the telescopic upright (7). A mating screw hole (18) is opened on the side of the snap-fit ​​moving block (17). An installation end block (19) is fixedly installed at one end of the horizontal connecting rod (10). A main scanning body (20) is fixedly installed on the inner side of the end fixing box (9) and the top fixing box (12).

2. The machine vision inspection device for weld quality according to claim 1, characterized in that, The number of the bottom pads (2) is four, and the four bottom pads (2) are all fixedly connected by the screws on the top surface to the bottom surface of the support base plate (1) near the four corner screw holes. The horizontal top groove (3) is horizontally opened at the center line of the top surface of the support base plate (1).

3. The machine vision inspection device for weld quality according to claim 1, characterized in that, There are two support pads (4), and the bottom surfaces of the two support pads (4) are connected to the top opening of the horizontal top groove (3). The snap-fit ​​top groove (5) is horizontally opened on the top surface of the support base plate (1) near one side. The output end of the transmission motor (6) is horizontally fixedly connected to one end of the adjusting screw (13).

4. The machine vision inspection device for weld quality according to claim 1, characterized in that, The bottom end of the telescopic pole (7) is connected to the top opening end of the snap-fit ​​top groove (5). The bottom crossbar (8) is horizontally fixed on the side of the telescopic pole (7) near the bottom end using a telescopic rod structure. One end of the horizontal connecting rod (10) is connected to the opening end of the side mounting hole (16).

5. The machine vision inspection device for weld quality according to claim 1, characterized in that, The vertical connecting rod (11) is vertically fixedly connected at one end away from the telescopic pole (7), and the vertical connecting rod (11) and the telescopic pole (7) are arranged in parallel to each other. The top fixing box (12) and the end fixing box (9) are arranged in a superimposed manner. The bottom end of the bottom locking block (14) is locked in the inner side of the locking top groove (5). The side mounting hole (16) is opened on the side of the telescopic pole (7) near the top.

6. The machine vision inspection device for weld quality according to claim 1, characterized in that, The bottom end of the snap-fit ​​moving block (17) is snap-fitted to the inner side of the snap-fit ​​top groove (5), and is threadedly connected to the outer side of the adjusting screw (13) through the screw hole (18). One end of the mounting end block (19) is fixedly snap-fitted to the inner side of the side mounting hole (16).

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