Visual inspection device for saddle-shaped bracket for vehicle

Abstract

A visual detection device for a saddle-shaped bracket for a vehicle belongs to the technical field of detection equipment and comprises a CCD (Charge Coupled Device) camera, a PC (Personal Computer), a rack, a supporting seat, a positioning mechanism and a lighting mechanism, the CCD cameras, the PC, the supporting base, the positioning mechanisms, the lighting mechanisms and the rack are installed together, the number of the positioning mechanisms, the number of the lighting mechanisms and the CCD cameras is multiple, each positioning mechanism comprises a positioning rod and a fixing clamping base, and each lighting mechanism comprises a condensation bowl and an LED lamp. In the utility model, the positions of the CCD cameras and the light condensing bowl can be conveniently adjusted along the upper or lower direction and the circumferential direction of the positioning rod, so that the lenses of the plurality of CCD cameras can effectively collect the pictures of all welding points (the pictures of multi-angle welding points at the upper end and the lower end and the pictures of welding points at the front end, the rear end, the left end and the right end) between the sliding rail and the fixed seat of the saddle-shaped bracket for the vehicle; powerful technical support is provided for the PC to judge the welding spot quality, convenience is brought to workers, and the quality inspection efficiency is correspondingly improved. In conclusion, the device has a good application prospect.

Description

Technical Field

[0001] This utility model relates to the field of vehicle inspection equipment technology, and in particular to a visual inspection device for a vehicle saddle-shaped bracket. Background Technology

[0002] The main functions of the saddle-shaped bracket for vehicles include fixing and supporting (used for adjusting the fore-and-aft positioning of the vehicle seat). Its main structure includes a Z-shaped slide rail and an N-shaped fixing seat. During production, a groove is machined in the middle of the slide rail, and then the fixing seat is snapped into the groove. Subsequently, all surfaces of the upper and lower ends of the contact area between the fixing seat and the slide rail are welded together by electric welding.

[0003] To ensure the quality of automotive saddle brackets after production, technicians need to inspect the weld points after actual welding. Currently, this is typically done manually or visually. Manual visual inspection is inconvenient for workers, and insufficient experience or responsibility can compromise the product's compliance with standards. More importantly, the saddle bracket requires inspection of the upper and lower surfaces of the welded areas of the slide rail and mounting base. This means that after inspecting one side, the slide rail must be flipped over to inspect the other side, resulting in low efficiency and increased workload for workers. Visual inspection primarily involves capturing images of the welding points using a CCD camera and transmitting them to a PC. The PC's application software then compares the input images with the correct corresponding images from its database in real time. When data anomalies occur (i.e., issues such as incomplete welds, insufficient weld width, weld misalignment, porosity, excessively short welds, burn-through, poor weld bead quality, or residual slag), the system promptly alerts the inspection personnel. While this method offers some convenience and ensures that the inspection quality meets standards, it still requires multi-angle inspection of the upper and lower surfaces of the saddle-shaped bracket and the mounting base. Therefore, staff must inspect left and right, front and back, and adjust the saddle-shaped bracket vertically to achieve good image acquisition. Consequently, it remains relatively inconvenient and inefficient. Utility Model Content

[0004] To overcome the limitations of existing manual or visual methods for inspecting the welding quality of automotive saddle-shaped brackets, as described in the background technology...

[0005] To address the aforementioned drawbacks, this invention provides a visual inspection device for automotive saddle-shaped brackets that, under the combined action of related structures, can simultaneously capture images of welding points between the slide rails and fixed seats of the bracket from multiple angles. This provides strong technical support for PC-based assessment of weld quality, offers convenience to staff, and correspondingly improves the efficiency of quality inspection.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A vehicle-mounted saddle-shaped bracket visual inspection device includes a CCD camera, a PC, a frame, a support base, and also a positioning mechanism and an illumination mechanism. The frame is composed of multiple square tubes, and the support base is fixedly installed on the upper front part of the frame. A placement seat is fixedly installed on the upper front side of the support base, and card holders are fixedly installed on both sides of the upper end of the placement seat. Multiple sets of the positioning mechanism, illumination mechanism, and CCD camera are included, with each positioning mechanism paired with one set of illumination mechanism and CCD camera. Each positioning mechanism includes a positioning rod and fixed card holders, with at least two fixed card holders, and the two fixed card holders are spaced apart on one side. Each is installed at one end of the positioning rod; the lighting mechanism includes a condenser bowl and LED lights. The condenser bowl has an image acquisition hole at the rear. Multiple LED beads are arranged in a ring and installed on the front side of the rear middle of the condenser bowl and outside the acquisition hole; one end of the condenser bowl of each lighting mechanism is fixedly installed together with the other end of one of the fixing brackets of one of the positioning mechanisms, and one side of the housing of each CCD camera is fixedly installed together with the other end of the fixing bracket of another of the positioning mechanisms; the other ends of the positioning rods of the multiple positioning mechanisms are respectively installed at the upper, lower and front and rear of the rear end of the frame.

[0008] Furthermore, the center of the image acquisition hole of the focusing bowl and the lens of the CCD camera are aligned in a straight line.

[0009] Furthermore, the front-to-back width of the upper end of the card holder is greater than the front-to-back width of the slide rail of the saddle-shaped bracket.

[0010] Furthermore, a support leg is fixedly installed around the lower end of the frame, and a positioning plate is fixedly installed around the lower end of the frame at the outer end of the support leg.

[0011] Furthermore, the inner diameter of the opening on one side of the fixed bracket is larger than the outer diameter of the positioning rod.

[0012] Furthermore, the lenses of the multiple CCD cameras and the focusing bowls of the multiple lighting mechanisms are respectively aligned with the left, middle, and right sides of the upper and lower ends of the card holder, as well as the front and rear middle parts of the card holder.

[0013] Furthermore, the surface of the light-concentrating bowl is electroplated with a light-concentrating material.

[0014] Compared with existing technologies, the advantages of this invention are as follows: This invention is based on existing mature CCD image acquisition, PC image recognition, and judgment of the corresponding solder joint quality. In this invention, both the CCD camera and the focusing bowl can be easily adjusted along the positioning rod in the up-down and circumferential directions, ensuring that the lenses of multiple CCD cameras can effectively acquire images of all welding points between the slide rail and the fixing seat of the automotive saddle-shaped bracket (images of welding points at multiple angles at the upper and lower ends, and at the front, rear, left, and right ends). This provides strong technical support for the PC to judge the solder joint quality and brings convenience to the staff, thereby improving the efficiency of quality inspection. In summary, this invention has good application prospects. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of the saddle-shaped support under the detection state of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure between the support base and the saddle-shaped bracket of this utility model.

[0019] Figure 4 This is a schematic diagram of the support structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the saddle-shaped support structure tested by this utility model. Detailed Implementation

[0021] Figure 1 , 2As shown in Figures 3, 4, and 5, the vehicle saddle-shaped bracket visual inspection device includes a CCD camera 1, a PC (not shown in the figure, located on the inspection table at the side of the frame), a frame 2, and a support base 3. The signal output terminal of the CCD camera 1 and the signal input terminal of the PC are connected via a data cable. It also has a positioning mechanism 4 and an illumination mechanism 5. The frame 2 is made up of multiple square tubes 21 fixed together with bolts and nuts. The support base 3 is fixedly installed on the upper front part of the frame 2. A placement seat 31 is fixedly installed on the upper front side of the support base 3. A "U"-shaped bracket 32 ​​is fixedly installed on each side of the upper end of the placement seat 31. There are eight sets of positioning mechanism 4, illumination mechanism 5, and CCD camera 1. Each set of positioning mechanism 4 is used in conjunction with one set of illumination mechanism 5 and CCD camera 1. Each set of positioning mechanism 4 includes a positioning rod 41 and a fixed bracket 42. There are two fixed brackets 42. There is an opening 421 in the middle of one side end of the fixed bracket 42. The outer end of the fixed bracket opening 421 is an open structure as a fixed work station 4. 22. The front and rear ends of the fixed workstation each have an opening A423 and a threaded hole 424. Two fixed brackets 42 are fixedly installed at a distance from each other at one end of the positioning rod 41 (bolts 425 are screwed into the threaded hole 424 through the opening A423 to fix the two fixed brackets 42 at a distance from each other at one end of the positioning rod 41). The lighting mechanism 5 includes a focusing bowl 51 and LED lights 52. There is an image acquisition hole 53 in the middle of the rear of the focusing bowl. Multiple LED beads 52 are arranged in a ring and installed in front of the middle of the rear of the focusing bowl 51 and outside the acquisition hole 53. The middle of one side of the focusing bowl 51 of each lighting mechanism is fixedly installed together with the other side of one of the fixed brackets 42 of one of the positioning mechanisms. The middle of one side of the housing of each CCD camera 1 is fixedly installed together with the other side of the other fixed bracket 42 of one of the positioning mechanisms. The other end of the positioning rods 41 of the eight positioning mechanisms is installed at the upper (three sets), lower (three sets), and front and rear (one set each) of the rear end of the frame 2.

[0022] Figure 1 , 2As shown in Figures 3, 4, and 5, the center of the image acquisition hole 53 of the condenser bowl 51 and the lens of the CCD camera 1 are aligned in a straight line (ensuring the lens can effectively acquire images within its field of view). The front-to-back width of the upper end of the mounting bracket 32 ​​is slightly larger than the front-to-back width of the slide rail 61 of the saddle-shaped bracket 6. A support foot 24 is fixedly installed around the lower end of the frame (if relocation is required, it can be placed on the ground using the support foot). An "L"-shaped positioning plate 22 is fixedly installed around the lower end of the frame at the outer end of the support foot. The positioning plate 22 has a mounting hole in the middle. The four positioning plates 22 are installed on the ground using expansion bolts 23 through the mounting hole (this installation scheme can be used if the position is not frequently moved). The inner diameter of the opening in the middle of one side end of the mounting bracket 42 is slightly larger than the outer diameter of the positioning rod 41. The focusing surfaces of the lenses of the eight CCD cameras 1 and the condenser bowls 51 of the eight lighting mechanisms are respectively aligned with the upper and lower left, middle, and right sides of the mounting bracket 32, as well as the front and rear middle parts of the mounting bracket. The surface of the focusing bowl 51 is electroplated with silver (to facilitate the focusing of light emitted by multiple LED beads onto the welding inspection points). The power input terminals of all LED beads in the multiple lighting mechanisms are connected in parallel via wires. Figure 2 The number 7 in the middle represents the lens alignment position of the CCD camera (not a physical object).

[0023] Figure 1 , 2As shown in Figures 3, 4, and 5, this invention is based on existing mature technology for acquiring images with a CCD camera, recognizing images with a PC, and determining whether the corresponding solder joints are qualified. This application does not protect the technology of acquiring images with a single CCD camera, recognizing images with a PC, and determining whether the corresponding solder joints are qualified, nor does it elaborate on its working principle. This application protects the data on whether the solder joints between the slide rail and the fixed seat of the vehicle saddle-shaped bracket are qualified at multiple angles simultaneously. During testing, the staff places the slide rail 61 of the saddle-shaped bracket horizontally within the mounting base 32, with the fixing base 62 at the lower end. After turning on the power to the LED beads of the eight lighting mechanisms, the LED beads emit light through the focusing bowl, illuminating the upper and lower left, middle, and right sides of the welding points of the slide rail and fixing base of the saddle-shaped bracket, as well as the front and rear ends, enabling seamless weld point detection. Specifically, during testing, images of the welding points are captured by eight CCD cameras 1 and transmitted to a PC. The application software on the PC then compares the correct corresponding point images in the database with the input images in real time. If the data is abnormal (i.e., the corresponding point welding has issues such as broken welds, insufficient weld width, weld misalignment, porosity, short welds, burn-through, poor weld bead, or residual weld slag), the testing personnel are promptly alerted. It should be noted again that this application does not protect the camera output image or PC fault identification technology; this application protects the ability to simultaneously detect the weld point quality of the slide rail and fixing base of the vehicle-mounted saddle-shaped bracket from multiple angles. In this new invention, both the CCD camera 1 and the focusing bowl 51 can be easily adjusted in position along the positioning rod 41 in the up, down, and circumferential directions. This ensures that the lenses of the eight CCD cameras 1 can effectively capture images of all welding points (multi-angle welding point images at the upper and lower ends, and welding point images at the front and rear ends) between the slide rail 61 and the fixed seat 62 of the vehicle saddle-shaped bracket. This provides strong technical support for the PC to judge the quality of the welding points, brings convenience to the staff, and correspondingly improves the efficiency of quality inspection.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0025] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A visual inspection device for a vehicle-mounted saddle-shaped bracket, comprising a CCD camera, a PC, a frame, and a support base, characterized in that, It also has a positioning mechanism and an illumination mechanism; the frame is composed of multiple square tubes, and a support base is fixedly installed on the upper front part of the frame; a placement seat is fixedly installed on the upper front side of the support base, and a card holder is fixedly installed on both sides of the upper end of the placement seat; there are multiple sets of positioning mechanisms, illumination mechanisms, and CCD cameras, with each set of positioning mechanisms matching one set of illumination mechanism and CCD camera; each set of positioning mechanisms includes a positioning rod and a fixed card holder, with at least two fixed card holders, and one side of each fixed card holder is installed at a distance from one end of the positioning rod; the illumination mechanism includes a condenser bowl and LED lights, with an image acquisition hole at the rear of the condenser bowl, and multiple LED beads are arranged in a ring and installed on the front side of the rear middle of the condenser bowl, located outside the acquisition hole; one side of the condenser bowl of each condenser mechanism is fixedly installed together with the other side of one fixed card holder of one of the positioning mechanisms, and one side of the housing of each CCD camera is fixedly installed together with the other side of the other fixed card holder of one of the positioning mechanisms; the other ends of the positioning rods of the multiple sets of positioning mechanisms are respectively installed on the upper, lower, and front and rear parts of the rear end of the frame.

2. The vehicle saddle-shaped bracket visual inspection device according to claim 1, characterized in that, The center of the image acquisition hole of the focusing bowl and the lens of the CCD camera are in a straight line.

3. The vehicle saddle-shaped bracket visual inspection device according to claim 1, characterized in that, The front-to-back width of the upper end of the card holder is greater than the front-to-back width of the slide rail of the saddle-shaped bracket.

4. The vehicle saddle-shaped bracket visual inspection device according to claim 1, characterized in that, A support leg is fixedly installed around the lower end of the frame, and a positioning plate is fixedly installed around the lower end of the frame at the outer end of the support leg.

5. The vehicle saddle-shaped bracket visual inspection device according to claim 1, characterized in that, The inner diameter of the opening on one side of the fixed bracket is larger than the outer diameter of the positioning rod.

6. The vehicle saddle-shaped bracket visual inspection device according to claim 1, characterized in that, The lenses of multiple CCD cameras and the focusing bowls of multiple lighting mechanisms are respectively aligned with the upper and lower left, middle, and right sides of the cassette, as well as the front and rear middle parts of the cassette.

7. The vehicle saddle-shaped bracket visual inspection device according to claim 1, characterized in that, The surface of the light-concentrating bowl is electroplated with a light-concentrating material.

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