Stamping crack defect detection device for automobile stamping parts

Abstract

This utility model relates to the technical field of automotive parts inspection devices, specifically, to a stamping crack defect detection device for automotive stamped parts. It includes a conveyor belt, a rejection assembly on the unloading side of the conveyor belt, and a cylinder located at the rear of the conveyor belt. A pusher plate is detachably mounted at the end of the cylinder's telescopic shaft. Two symmetrical semicircular covers are mounted on the conveyor belt. Multiple industrial cameras and multiple light sources are fixedly mounted on the inner surface of one semicircular cover, and a laser scanner is fixedly mounted on the inner surface of the other semicircular cover. A waste discharge hopper is located on the unloading side of the conveyor belt, directly in front of the pusher plate. A guide assembly is provided at the feed end of the conveyor belt. This utility model facilitates defect detection and rejection of defective products and is easy to use.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts testing devices, specifically to a stamping crack defect detection device for automotive stamping parts. Background Technology

[0002] As fundamental components in automobile manufacturing, automotive stamping parts directly impact the safety and reliability of vehicles. During the stamping process, due to factors such as material properties and stamping process parameters, stamping parts are prone to cracking defects. If these defects are not detected in time, they may lead to a decrease in the strength of the parts or even cause safety accidents. Therefore, efficient and accurate detection of cracking defects in automotive stamping parts is crucial. Traditional crack detection of automotive stamping parts relies heavily on manual visual inspection, which is labor-intensive, inefficient, and prone to missed or false detections. Currently, to achieve efficient detection, industrial cameras are typically used in conjunction with processors for automated inspection.

[0003] For example, invention patent CN113814292A discloses a device for detecting stamping crack defects in automotive stamping parts. This invention is a device for detecting stamping crack defects in automotive stamping parts, comprising: a detection sensor head and a controller, the detection sensor head and the controller being connected by wiring. The detection sensor head includes: a detection sensor head body, a built-in illumination camera, a sensor indicator light, a cable connection port, and a first central processing unit. The detection sensor head body is equipped with the built-in illumination camera, sensor indicator light, and cable connection port. The first central processing unit is located inside the detection sensor head body and is connected to the built-in illumination camera, sensor indicator light, and cable connection port by wiring. The cable connection port of the detection sensor head body is connected to the controller by wiring. This invention can effectively and promptly detect crack defects in sheet metal parts during the stamping process, reducing the defect rate and improving production efficiency.

[0004] While the aforementioned technical solutions have their advantages, most current testing devices also have some shortcomings in use. For example, some testing devices lack automatic screening functions and cannot remove defective parts. Detected defective parts still need to be manually sorted, and this manual sorting process may require machine downtime, further reducing production efficiency. In view of this, we propose a stamping crack defect detection device for automotive stamping parts. Utility Model Content

[0005] The purpose of this invention is to provide a stamping cracking defect detection device for automotive stamping parts, so as to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A stamping cracking defect detection device for automotive stamping parts includes a conveyor belt. A rejection assembly is provided on the unloading side of the conveyor belt. The rejection assembly includes a cylinder located on the rear side of the conveyor belt. A pusher plate is detachably installed at the end of the telescopic shaft of the cylinder. Two symmetrical semicircular covers are provided on the conveyor belt. Multiple industrial cameras and multiple light sources are fixedly installed on the inner side of one of the semicircular covers, and a laser scanner is fixedly installed on the inner side of the other semicircular cover. A waste discharge hopper for waste material to fall out is provided on the unloading side of the conveyor belt. The waste discharge hopper is located directly in front of the pusher plate.

[0007] Preferably, when the telescopic shaft of the cylinder extends, it drives the pusher plate to push the defective stamped parts on the conveyor belt to the waste unloading hopper for unloading.

[0008] Preferably, a rotating shaft is provided at both ends of the conveyor belt, the rotating shaft is rotatably connected to the external frame and driven by an external motor, and multiple central shafts are provided between the upper and lower sides of the conveyor belt. This feature allows the central shaft to support the conveyor belt, making the belt rotate more stably and smoothly.

[0009] Preferably, the unloading end of the conveyor belt is provided with a qualified part unloading hopper, and the conveyor belt transports the qualified parts to the qualified part unloading hopper for discharge.

[0010] Preferably, a control host is provided on one side of the conveyor belt, and a fixing frame is fixedly installed at the bottom of the control host.

[0011] Preferably, a steel plate is fixedly installed at the end of the telescopic shaft of the cylinder, the pusher plate is detachably installed on the side of the steel plate, and two symmetrical side limit blocks are fixedly installed on the front side of the pusher plate. This feature facilitates the fixing, installation, and disassembly of the pusher plate, and the side limiting block prevents the workpiece from sliding along the front side of the pusher plate.

[0012] Preferably, a central rod is fixedly installed between the two semicircular covers, and a fixed support is fixedly installed on the top surface of the central rod, and the fixed support is fixedly installed on the external frame.

[0013] Preferably, the feed end of the conveyor belt is provided with a guide assembly, the guide assembly includes two mutually symmetrical guide plates, the front end of the guide plate is fixedly installed with a guide plate, and the rear end of the guide plate is fixedly installed with a fixing rod between it and the corresponding semi-circular cover. This setting can guide the workpieces entering the conveyor belt, so that the workpieces are in the middle of the conveyor belt and are transported forward.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses a set rejection component to push defective stamping parts into the waste unloading hopper by a cylinder-driven pusher plate, thereby realizing the automatic screening and rejection of defective parts. It eliminates the need for manual sorting and machine downtime, solving the problem of low efficiency caused by the reliance on manual sorting in traditional detection devices, and achieving the effect of improving production continuity and detection efficiency.

[0015] 2. This utility model uses two semi-circular covers on the left and right sides. An industrial camera and light source on one side, together with a laser scanner on the other side, can collect images and perform three-dimensional scanning of the stamped parts from multiple angles. Combined with the analysis and processing of the control host, it can achieve accurate detection of crack defects, replace manual visual inspection, reduce missed detections and false detections, and improve the detection accuracy.

[0016] 3. This utility model guides the stamped parts to the middle position of the conveyor belt through the symmetrical guide plates and guide plates in the guide assembly. With the support of the central shaft on the conveyor belt, the stamped parts are transported stably, enabling the testing device to work continuously and efficiently. Qualified parts are collected through the qualified part unloading hopper, which improves the practicality and automation of the device as a whole. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is one of the partial structural schematic diagrams of this utility model; Figure 3 This is an exploded structural diagram of the rejection component of this utility model; Figure 4 This is a second schematic diagram of a partial structure of this utility model; The meanings of the labels in the diagram are as follows: 1. Rotating shaft; 10. Central shaft; 11. Conveyor belt; 12. Waste discharge hopper; 13. Qualified parts discharge hopper; 14. Control host; 141. Fixing frame; 2. Removal components; 20. Cylinder; 201. Steel plate; 21. Pusher plate; 22. Side limit block; 3. Semicircular cover; 30. Industrial camera; 31. Light source; 32. Laser scanner; 33. Center rod; 34. Fixed support; 4. Guide assembly; 40. Guide plate; 41. Guide plate; 42. Fixing rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Please see Figures 1-4 This utility model provides a technical solution: a stamping crack defect detection device for automotive stamping parts, including a conveyor belt 11, a rejection component 2 provided on the unloading side of the conveyor belt 11, the rejection component 2 including a cylinder 20 provided on the rear side of the conveyor belt 11, a pusher plate 21 detachably installed at the end of the telescopic shaft of the cylinder 20, and a waste discharge hopper 12 for waste to fall out provided on the unloading side of the conveyor belt 11, the waste discharge hopper 12 being located directly in front of the pusher plate 21. When the telescopic shaft of the cylinder 20 extends, it drives the pusher plate 21 to push the defective stamping parts on the conveyor belt 11 to the waste discharge hopper 12 for unloading, thereby realizing the automatic rejection of defective parts without manual intervention and ensuring the continuity of the detection process.

[0019] Specifically, the conveyor belt 11 is equipped with two symmetrical semicircular covers 3. Multiple industrial cameras 30 and multiple light sources 31 are fixedly installed on the inner side of one of the semicircular covers 3, and a laser scanner 32 is fixedly installed on the inner side of the other semicircular cover 3 to realize the scanning operation of the stamping parts.

[0020] In this embodiment, the semi-circular cover 3 is fitted onto the conveyor belt 11, and the cylinder 20 is located on the rear side of the conveyor belt 11. When the telescopic shaft of the cylinder 20 is shortened, the pusher plate 21 can move backward to the outside of the conveyor belt 11, so that the pusher plate 21 will not affect the normal conveying of the workpiece on the conveyor belt 11.

[0021] In this embodiment, a rotating shaft 1 is provided at both ends of the conveyor belt 11. The rotating shaft 1 is rotatably connected to the external frame and driven by an external stepper motor. The external stepper motor is also fixedly installed on the external frame. Multiple central shafts 10 are provided between the upper and lower sides of the conveyor belt 11. The rotating shaft 1 drives the conveyor belt 11 to rotate, and the central shafts 10 provide effective support for the conveyor belt 11, making the conveyor belt 11 run more stably and avoiding the impact of belt shaking on the detection accuracy. Moreover, each time the stepper motor that drives the conveyor belt 11 to rotate, its output shaft rotates the corresponding number of revolutions, so as to realize the conveying operation of the workpiece using the conveyor belt 11 at equal intervals.

[0022] like Figure 1As shown, the unloading end of the conveyor belt 11 is equipped with a qualified part unloading hopper 13. The conveyor belt 11 transports qualified parts to the qualified part unloading hopper 13 for unloading. This allows for the centralized collection of qualified stamping parts, achieving automatic separation of qualified and defective parts and improving sorting efficiency.

[0023] like Figure 1 and Figure 3 As shown, a steel plate 201 is fixedly installed at the end of the telescopic shaft of the cylinder 20. The pusher plate 21 is detachably installed on the side of the steel plate 201 by multiple fastening screws. Two symmetrical side limit blocks 22 are fixedly installed on the front side of the pusher plate 21 to facilitate the replacement and maintenance of the pusher plate 21. The side limit blocks 22 on the pusher plate 21 can prevent the workpiece from sliding along the front side of the pusher plate 21 during pushing, ensuring accurate rejection.

[0024] In addition, a central rod 33 is fixedly installed between the two semicircular covers 3, and a fixed support 34 is fixedly installed on the top surface of the central rod 33. The fixed support 34 is fixedly installed on the external frame to enhance the structural stability of the detection mechanism and ensure that the industrial camera 30 and the laser scanner 32 are in stable position when working.

[0025] It is worth noting that a guide assembly 4 is provided at the feed end of the conveyor belt 11. The guide assembly 4 is located on the side of the semi-circular cover 3 away from the discharge end of the conveyor belt 11. The guide assembly 4 includes two symmetrical guide plates 40. A guide plate 41 is fixedly installed at the front end of the guide plate 40. A fixing rod 42 is fixedly installed between the rear end of the guide plate 40 and the corresponding semi-circular cover 3. The guide plate 40 and the guide plate 41 guide the workpiece to the middle of the conveyor belt 11. The fixing rod 42 reinforces the connection between the guide plate 40 and the semi-circular cover 3, ensuring that the workpiece is accurately positioned in the detection area and improving the reliability of the detection.

[0026] It is worth noting that a control host 14 is provided on one side of the conveyor belt 11, and a fixed frame 141 is fixedly installed at the bottom of the control host 14. The control host 14 includes a control cabinet and a display screen. The control cabinet contains a processor and a control module, which are electrically connected to the stepper motor driving the conveyor belt 11, the industrial camera 30, the laser scanner 32, and the cylinder 20, respectively. The lens of the industrial camera 30 is a high-definition wide-angle lens with a shooting frame rate of not less than 30 frames / second to ensure rapid capture of surface details of the stamped parts. The processor receives the images captured by the industrial camera 30 and the scanning data from the laser scanner 32, analyzes and judges whether there are crack defects in the stamped parts through image recognition algorithms, and displays the results on the display screen. The control module controls the cylinder 20 to act according to the judgment result, driving the pusher plate 21 to push the defective parts into the scrap unloading hopper 12, while the qualified parts enter the qualified parts unloading hopper 13 with the conveyor belt 11.

[0027] It is worth noting that the cylinder 20, the waste unloading hopper 12, and the qualified parts unloading hopper 13 are all reasonably supported by corresponding external brackets, so that the entire device can operate normally.

[0028] Finally, it should be noted that the control host 14, industrial camera 30, laser scanner 32, cylinder 20 and other components involved in this utility model are all general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle in this utility model. The electrical connection between each electrical component is completed in the order of operation. The detailed connection method is a technology known in the art.

[0029] When using the automotive stamping parts stamping crack defect detection device of this utility model, start the external stepper motor, the rotating shaft 1 drives the conveyor belt 11 to rotate, the middle shaft 10 supports the conveyor belt 11 to keep it stable, place the automotive stamping parts to be tested at the feeding end of the conveyor belt 11, and guide them through the guide plate 41 and guide plate 40 of the guide assembly 4 to be in the middle of the conveyor belt 11. The stamped part enters between the left and right semicircular covers 3. The industrial camera 30 inside one semicircular cover 3 captures images with the help of the light source 31, and the laser scanner 32 on the other side performs three-dimensional scanning. The data is transmitted to the control host 14 in real time. After the processor analyzes the data, the results are displayed on the screen. If the workpiece is defective, upon reaching the unloading side, the control host 14 controls the cylinder 20 to push the pusher plate 21, and the side limit block 22 prevents the workpiece from sliding, pushing it into the waste unloading hopper 12. Qualified workpieces are then transported by the conveyor belt 11 to the qualified workpiece unloading hopper 13 for collection.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stamping cracking defect detection device for automotive stamping parts, comprising a conveyor belt (11), characterized in that: The conveyor belt (11) is provided with a rejection assembly (2) on the unloading side. The rejection assembly (2) includes a cylinder (20) located on the rear side of the conveyor belt (11). A pusher plate (21) is detachably installed at the end of the telescopic shaft of the cylinder (20). The conveyor belt (11) is provided with two symmetrical semicircular covers (3). Multiple industrial cameras (30) and multiple light sources (31) are fixedly installed on the inner side of one of the semicircular covers (3). A laser scanner (32) is fixedly installed on the inner side of the other semicircular cover (3). The conveyor belt (11) is provided with a waste discharge hopper (12) for waste to fall out. The waste discharge hopper (12) is located directly in front of the pusher plate (21).

2. The stamping cracking defect detection device for automotive stamping parts according to claim 1, characterized in that: When the telescopic shaft of the cylinder (20) extends, it drives the pusher plate (21) to push the defective stamped parts on the conveyor belt (11) to the waste unloading hopper (12) for unloading.

3. The stamping cracking defect detection device for automotive stamping parts according to claim 1, characterized in that: Both ends of the conveyor belt (11) are provided with a rotating shaft (1), which is rotatably connected to the external frame and driven by an external motor. Multiple central shafts (10) are provided between the upper and lower sides of the conveyor belt (11).

4. The stamping cracking defect detection device for automotive stamping parts according to claim 1, characterized in that: The unloading end of the conveyor belt (11) is provided with a qualified part unloading hopper (13), and the conveyor belt (11) transports the qualified parts to the part that is dropped from the qualified part unloading hopper (13).

5. The stamping cracking defect detection device for automotive stamping parts according to claim 1, characterized in that: A control host (14) is provided on one side of the conveyor belt (11), and a fixing frame (141) is fixedly installed at the bottom of the control host (14).

6. The stamping cracking defect detection device for automotive stamping parts according to claim 1, characterized in that: A steel plate (201) is fixedly installed at the end of the telescopic shaft of the cylinder (20). The pusher plate (21) is detachably installed on the side of the steel plate (201). Two symmetrical side limit blocks (22) are fixedly installed on the front side of the pusher plate (21).

7. The stamping cracking defect detection device for automotive stamping parts according to claim 1, characterized in that: A central rod (33) is fixedly installed between the two semicircular covers (3), and a fixed support (34) is fixedly installed on the top surface of the central rod (33). The fixed support (34) is fixedly installed on the external frame.

8. The stamping cracking defect detection device for automotive stamping parts according to claim 1, characterized in that: The feed end of the conveyor belt (11) is provided with a guide assembly (4). The guide assembly (4) includes two symmetrical guide plates (40) on the left and right. A guide plate (41) is fixedly installed at the front end of the guide plate (40). A fixing rod (42) is fixedly installed between the rear end of the guide plate (40) and the corresponding semicircular cover (3).

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