A detection device for integrally formed riveting screws of an automobile mounting plate

Abstract

The utility model discloses a kind of detection devices of automobile mounting plate integrated forming riveting screw, comprising: rack;Transmission component, including driving unit and two transmission units directly opposite, transmission unit includes conveying belt;Detection component, including camera and two distance sensors;Sorting component, including sorting unit, substandard product box and finished product box, finished product box is located below the discharge end of two conveying belts, sorting unit is used to send substandard product on two conveying belts into substandard product box.The detection device of automobile mounting plate integrated forming riveting screw is transmitted mounting plate assembly by transmission component horizontally, detects bar code mark, model mark and riveting screw length using detection component, and qualified product is conveyed to finished product box by conveying belt, and unqualified substandard product is then conveyed to substandard product box by sorting unit, worker only needs to be responsible for discharging, reduce worker burden, improve detection efficiency, and avoid the mixing of qualified product and substandard product caused by sorting error.

Description

Technical Field

[0001] This utility model relates to automotive parts testing technology, and in particular to a testing device for integrally formed riveting screws on automotive mounting plates. Background Technology

[0002] Mounting plates are commonly used automotive components. To achieve structural fixation, connection reinforcement, and functional integration, mounting plates are usually integrally formed with rivet screws during the production process, creating a mounting plate assembly. These mounting plate assemblies typically serve as "bridges of connection and reinforcement" in the automotive structure. Through the mechanical connection characteristics of rivet screws, they balance connection strength, assembly efficiency, and ease of maintenance, and are therefore widely used in various parts such as the body, chassis, and powertrain.

[0003] like Figures 1-3 The diagram shows a structural schematic of a mounting plate assembly in the prior art, which includes a mounting connecting plate 71. The mounting connecting plate 71 is generally oval in shape and has three positioning through holes 711 to facilitate docking with other automotive parts. Riveting screws 72 are integrally connected to the four corners of the mounting connecting plate 71. The top surface of the head of the rivet screw 72 is provided with a model mark 721. At the same time, a barcode mark 712 is also provided on the mounting connecting plate 71 to facilitate the life cycle traceability of the part, ensure quality and safety, improve production and management efficiency, meet industry standards and compliance requirements, and meet the needs of error prevention and anti-counterfeiting.

[0004] When inspecting the mounting plate assembly 7, it is usually necessary to check the model mark 721 on the head of the rivet screw 73, the barcode mark 712 on the mounting plate 71, and the length of each rivet screw 73. In the prior art, although cameras, contact sensors, or distance sensors can be used to detect the above elements, manual feeding and unloading of products is required. Moreover, after inspecting a large number of products, it is easy for unqualified products to be mixed with qualified products due to the operator's operation error, causing the inspection to fail.

[0005] Therefore, it is necessary to improve the detection device for integrally molded riveting screws on automotive mounting plates in the existing technology. Utility Model Content

[0006] The purpose of this invention is to overcome the defects in the existing technology and provide a detection device for one-piece molded riveting screws of automotive mounting plates that further reduces the workload of workers, improves detection efficiency, and avoids the mixing of defective and qualified products.

[0007] To achieve the above technical effects, the technical solution of this utility model is: a detection device for integrally formed riveting screws on automotive mounting plates, comprising: frame; The transmission assembly includes a drive unit and two transmission units facing each other in a horizontal direction. Each transmission unit includes a transmission belt with a horizontal transmission surface. The drive unit drives the transmission belt in each transmission unit to rotate around its own circumference on the frame. The distance between the two transmission belts is between the width of the mounting plate assembly and the distribution spacing of the rivet screws on both sides of the mounting plate assembly. The detection assembly, mounted on the frame and located between the two conveyor belts, includes a camera positioned above and downward on the conveyor surface and two distance sensors positioned below and upward on the conveyor surface. The two distance sensors correspond to the rivet screws on both sides of the mounting plate assembly. The sorting assembly is located on the discharge side of the detection assembly and includes a sorting unit, a defective product box and a finished product box, both of which are open at the top and distributed along the conveyor belt direction. The finished product box is located below the discharge ends of the two conveyor belts. The sorting unit is used to transport the defective products on the two conveyor belts into the defective product box.

[0008] Preferably, in order to drive the two conveyor belts to rotate at the same speed simultaneously, the transmission unit further includes two transmission wheels located at both ends of the conveyor belt and connected by the transmission belt, and the output end of the drive unit is connected to the two transmission wheels on the same axis in the two transmission units.

[0009] Preferably, in order to facilitate the testing of mounting plate assemblies of different sizes and models, the drive unit is located between the two transmission units. The output end of the drive unit is a rotating shaft that rotates around its own axis on the frame. The two ends of the rotating shaft are axially slidably connected to the two transmission wheels and radially fixedly connected.

[0010] Preferably, in order to achieve axial sliding connection and radial fixed connection between the rotating shaft and the transmission wheel, a slide tube is fixed coaxially to the transmission wheel corresponding to the rotating shaft, and a slider and a sliding opening are provided between the rotating shaft and the slide tube. The slider slides in the sliding opening along an axial direction parallel to the rotating shaft.

[0011] Preferably, in order to facilitate locking the axial position of the transmission wheel, each transmission unit includes a transmission frame, the transmission wheel rotates around its own axis on the corresponding transmission frame, the transmission frame slides on the frame along an axial direction parallel to the rotation axis and a locking member is provided between the transmission frame and the frame, the locking member is used to lock the position of the transmission frame on the frame.

[0012] Preferably, in order to facilitate the adjustment of the detection position of the distance sensor according to the mounting plate assembly of different models and sizes, and to ensure that the moving path of the mounting plate assembly is located directly above the distance sensor, the two distance sensors are slidably connected to the transmission frames of the two transmission units, and the sliding direction is parallel to the axial direction of the rotation axis. Each distance sensor is provided with a fastener between it and the corresponding transmission frame, and the fastener is used to lock the distance sensor onto the transmission frame.

[0013] Preferably, in order to facilitate the stable placement of the mounting plate assembly on the two conveyor belts, a material guiding component is also provided on the feed end of each conveyor belt. The material guiding components cooperate with each other to stably place the mounting plate assembly from top to bottom on the conveyor surface of the two conveyor belts, and the riveting screws on the mounting plate assembly are set downward.

[0014] Preferably, to facilitate the smooth and stable placement of materials onto the two conveyor belts, each guiding component includes a guiding plate, a guiding roller, a roller frame, and an elastic element. The length direction of the guiding plate and the axial direction of the guiding roller are parallel to the conveying direction of the corresponding conveyor belt. The guiding plate is fixed above the corresponding conveyor frame. The guiding roller rotates around its own axis above the roller frame and is located above the conveying surface. The roller frame slides parallel to the axial direction of the rotation axis on the guiding plate and is connected to the guiding plate through the elastic element. The elastic element applies pressure to the roller frame in a direction parallel to the axial direction of the rotation axis. The elastic elements of the two guiding components are positioned opposite each other.

[0015] Preferably, in order to reduce the wear and tear on the mounting plate assembly during placement, the guide plate includes a transition section and a vertical section connected sequentially from top to bottom. The vertical section is fixedly connected to the transmission frame and is vertically arranged. The transition sections of the guide plates of the two guide assemblies enclose a transition channel that narrows from the upper right to the lower right. The bottom width of the transition channel is greater than or equal to the width of the mounting plate assembly.

[0016] Preferably, in order to facilitate pushing the defective products that fail the inspection into the defective product box, the sorting unit includes a sorting cylinder and a push plate. The bottom surface of the push plate is in contact with the horizontal plane where the transmission surface is located. The cylinder of the sorting cylinder is fixed on the frame, and the piston rod is connected to the push plate and its axis is parallel to the distribution direction of the two transmission units.

[0017] In summary, compared with the prior art, the detection device for the integrated riveting screws of the automotive mounting plate of this utility model horizontally transports the mounting plate assembly through the transmission component, and uses the detection component to detect the barcode mark, model mark and riveting screw length. The qualified products are transported to the finished product box by the conveyor belt, while the unqualified defective products are transported to the defective product box by the sorting unit. The workers only need to be responsible for feeding the materials, which reduces the workload of the workers, improves the detection efficiency, and avoids the mixing of qualified products and defective products due to sorting errors. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the mounting plate assembly; Figure 2 yes Figure 1 Top view; Figure 3 yes Figure 1 A bottom view; Figure 4 This is a schematic diagram of the structure of this utility model; Figure 5 yes Figure 4 Top view; Figure 6 yes Figure 4 An explosion diagram; Figure 7 This is a schematic diagram of the structure of the drive unit of this utility model; Figure 8 yes Figure 7 An explosion diagram; Figure 9 This is a schematic diagram of the transmission unit of this utility model; Figure 10 yes Figure 9 An explosion diagram; Figure 11 This is a schematic diagram of the transmission wheel of this utility model; Figure 12 This is a schematic diagram of the material guiding assembly of this utility model; Figure 13 yes Figure 12 An explosion diagram; In the diagram: 1. Frame; 11. Base; 12. Slide rail; 2. Drive unit; 21. Rotary shaft; 211. Slider; 212. Shaft; 213. Center plate; 214. Side ring; 22. Drive frame; 23. Drive motor; 24. Drive gear; 25. Driven gear ring; 26. Limiting plate; 3. Transmission unit; 31. Conveyor belt; 32. Transmission wheel; 33. Slide tube; 331. Slide opening; 34. Transmission frame; 341. Side plate; 342. Support leg; 343. Guide groove; 35. Locking element; 36. Guide wheel; 37. Bearing; 38. Concentric plate; 4. Detection assembly; 41. Camera; 42. 43. Distance sensor; 44. Fastener; 45. Supplemental light; 46. Detection frame; 47. Slide plate; 58. Sliding sleeve; 59. Sorting assembly; 50. Defective product box; 51. Finished product box; 52. Sorting cylinder; 53. Push plate; 54. Sorting rack; 60. Material guide assembly; 61. Material guide plate; 611. Transition section; 612. Vertical section; 6121. Strip opening; 62. Material guide roller; 63. Roller frame; 64. Elastic element; 65. Slide rod; 651. Protruding plate; 71. Mounting plate assembly; 71. Mounting connection plate; 711. Positioning through hole; 712. Barcode marking; 72. Riveting screw; 721. Model marking. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0020] like Figures 4-13 As shown, the present invention discloses a detection device for integrally molded riveting screws on automotive mounting plates, comprising: Rack 1; The transmission assembly includes a drive unit 2 and two transmission units 3 arranged horizontally opposite each other. Each transmission unit 3 includes a transmission belt 31 with a horizontal transmission surface. The drive unit 2 drives the transmission belt 31 in each transmission unit 3 to rotate around its own circumference on the frame 1. The distance between the two transmission belts 31 is between the width of the mounting plate assembly 7 and the distribution spacing of the rivet screws 72 on both sides of the mounting plate assembly 7. The detection component 4 is mounted on the frame 1 and located between the two conveyor belts 31. It includes a camera 41 located above the conveyor surface and facing downwards, and two distance sensors 42 located below the conveyor surface and facing upwards. The two distance sensors 42 correspond to the rivet screws 72 on both sides of the mounting plate assembly 7. The sorting component 5 is located on the discharge side of the detection component 4. It includes a sorting unit, a defective product box 51 with an open top and a finished product box 52 distributed along the conveying direction of the conveyor belt 31. The finished product box 52 is located below the discharge ends of the two conveyor belts 31. The sorting unit is used to transport the defective products on the two conveyor belts 31 into the defective product box 51.

[0021] It should be noted that, as Figure 3 As shown, in this utility model, the distribution spacing of the riveting screws 72 on both sides of the mounting plate assembly 7 is d, the width of the mounting plate assembly 7 is D, and the distribution spacing of the two conveyor belts 31 is greater than d and less than D, as shown. Figure 5 As shown, the mounting plate assembly 71 of the mounting plate assembly 7 is conveniently placed on the two conveyor belts 31, with the head of the rivet screw 72 facing upwards and the side with the barcode mark 712 facing upwards. The rivet screw 72 is located between the two conveyor belts 31. The two conveyor belts 31 provide horizontal support to both sides of the mounting plate assembly 7, specifically the mounting plate 71. The drive unit 2 drives the two conveyor belts 31 to rotate in the same direction and speed, thereby realizing the transmission and movement of the mounting plate assembly 7.

[0022] During the transfer and movement of the mounting plate assembly 7, the camera 41 in the detection component 4 captures images of the mounting plate assembly 7 on the conveyor belt 31 from top to bottom. To improve integration, the camera 41 has a built-in barcode scanner, which facilitates the detection of barcode markings 712 on the mounting plate 71 while capturing images. The camera 41 also uses its own image acquisition function to facilitate the detection of model markings 721 on the rivet screws 72. At the same time, the two distance sensors 42 below the transmission surface are used to facilitate the detection of the distance between the rivet screws 72 and the bottom of the two rivet screws 72 from bottom to top, thereby determining the length of the rivet screws 72. Based on the barcode markings 712, model markings 721, and the length of the rivet screws 72, the product is judged to be qualified.

[0023] If the product is qualified, the conveyor belt 31 moves the mounting plate assembly 7 to the output end of the conveyor belt 31, allowing the mounting plate assembly 7 to enter the finished product box 52. Otherwise, the sorting component 5 operates, and the sorting unit sends the unqualified defective products into the defective product box 51. In this way, when using this device, the inspection worker only needs to be responsible for the unloading of the mounting plate assembly 7, that is, placing the mounting connecting plate 71 with the barcode mark 712 facing up on the two conveyor belts 31. The conveyor belts 31 move the mounting plate assembly 7 to the inspection component 4 for inspection. According to the different inspection results, qualified products are sent into the finished product box 52, and defective products are sent into the defective product box 51. On the one hand, it reduces the workload of the operators, and on the other hand, it avoids the mixing of defective and qualified products caused by manual separation of defective and qualified products. In addition, this device can be used for continuous inspection and sorting of batches of mounting plate assemblies 7, improving inspection efficiency.

[0024] A further improvement is that the transmission unit 3 also includes two transmission wheels 32 located at both ends of the transmission belt 31 and connected by transmission belt 31. The output end of the drive unit 2 is connected to the two transmission wheels 32 on the same axis in the two transmission units 3.

[0025] With the above structure, the drive unit 2 can simultaneously drive the two transmission wheels 32 on both sides of the coaxial center line to rotate synchronously, thereby ensuring that the transmission belts 31 in the two transmission units 3 rotate along their own circumference at the same rotation speed and rotation direction, thus ensuring the smooth transmission and movement of the mounting plate assembly 7.

[0026] A further improvement is that the drive unit 2 is located between the two transmission units 3, and the output end of the drive unit 2 is a rotating shaft 21 that rotates around its own axis on the frame 1. The two ends of the rotating shaft 21 are axially slidably connected to the two transmission wheels 32 and radially fixedly connected.

[0027] With the above design, the axial sliding connection and radial fixed connection between the rotating shaft 21 and the transmission wheel 32 ensure that the rotating shaft 21 can drive the transmission wheel 32 to rotate synchronously. At the same time, it is convenient to adjust the axial distance between the transmission wheel 32 and the rotating shaft 21, and to adjust the horizontal distance between the two transmission belts 31 to adapt to mounting plate assemblies 7 of different widths and expand the scope of application.

[0028] A further improvement is that a slide tube 33 is fixed coaxially to the transmission wheel 32 connected to the rotating shaft 21. A slider 211 and a slide opening 331 are provided between the rotating shaft 21 and the slide tube 33. The slider 211 slides in the slide opening 331 along an axial direction parallel to the rotating shaft 21.

[0029] The sliding fit between the slider 211 and the sliding opening 331 allows for easy adjustment of the axial distance between the rotating shaft 21 and the transmission wheel 32. At the same time, the two can rotate synchronously, so that the rotating shaft 21 can drive the transmission wheel 32 to rotate, which in turn drives the transmission belt 31 to rotate.

[0030] A further improvement is that each transmission unit 3 includes a transmission frame 34, and the transmission wheel 32 rotates around its own axis on the corresponding transmission frame 34. The transmission frame 34 slides on the frame 1 along an axis parallel to the rotation axis 21 and a locking member 35 is provided between it and the frame 1. The locking member 35 is used to lock the position of the transmission frame 34 on the frame 1.

[0031] The above design allows for easy adjustment of the position of the transmission frame 34, thereby adjusting the axial position of the drive wheel 32 and the transmission belt 31. The position of the transmission frame 34 is locked and fixed by the locking member 35, thereby fixing the position of the transmission belt 31 and the drive wheel 32, which is convenient for adapting to different sizes of connecting plate assemblies 7.

[0032] like Figure 6As shown, the frame 1 includes a horizontal base 11, which is a rectangular plate structure. The length direction of the base 11 is consistent with the transmission direction of the conveyor belt 31, and the width direction is parallel to the direction of the two transmission units 3 facing each other. Three slide rails 12 are fixed on the base 11 and distributed along its length direction. The slide rails 12 extend in a direction parallel to the width direction of the base 11.

[0033] like Figures 9-11 As shown, in the transmission unit 3, the transmission frame 34 includes a side plate 341. The side plate 341 is located on the side of the transmission belt 31 away from the drive unit 2. Three support legs 342 are fixed at the bottom of the side plate 341. The bottom of the support legs 342 is fixed with a guide groove 343 that extends parallel to the width direction of the base 11 and slides with the slide rail 12. The locking member 35 is a locking bolt that is disposed on both sides of the guide groove 343. The locking bolt is threaded to the side wall of the guide groove 343. By tightening the locking bolt, the end of the locking bolt rod abuts against the slide rail 12, thereby locking the position of the guide groove 343 and thus locking the position of the transmission frame 34. Loosening the locking bolt allows the locking bolt to disengage from the slide rail 12, making it convenient for the guide groove 343 to move along the slide rail 12, adjusting the position of the transmission frame 34, and thus adjusting the distance between the two transmission belts 31 to accommodate mounting plate assemblies 7 of different widths.

[0034] Bearings 37 are provided at both ends of the side plate 341. The side of the transmission wheel 32 in the transmission unit 3 facing away from the drive unit 2 is integrally connected with a concentric disk 38 along the same axis. The outer ring of the bearing 37 is fixed on the side plate 341, and the inner ring is fixedly connected to the concentric disk 38, so that the transmission wheel 32 can rotate around its own axis on the side plate 341.

[0035] Two sets of guide wheels 36 are also provided on the top of the side plate 341. The two sets of guide wheels 36 are located on the feeding side and the discharging side of the sorting unit, respectively. The guide wheels 36 are distributed at intervals along the transmission direction of the conveyor belt 31. The axis of the guide wheels 36 is upward, and the guide wheels 36 rotate around their own axis on the top of the side plate 341. With this structure, when the mounting plate assembly 7 moves on the two conveyor belts 31, the wheel surfaces of the guide wheels 36 are in close contact with the two sides of the mounting connection plate 71, which facilitates the smooth movement of the mounting plate assembly 7 on the two conveyor belts 31.

[0036] The drive unit 2 is adjacent to the feed end of the conveyor belt 31. Correspondingly, the drive wheel 32, which is adjacent to the feed end of the conveyor belt 31, has a slide tube 33 fixed coaxially on the side closest to the drive unit 2. The slide tube 33 has a long strip-shaped through hole 331 on its side wall. The length direction of the slide tube 33 and the slide hole 331 are both parallel to the axial direction of the rotating shaft 21.

[0037] like Figure 7 and Figure 8As shown, the drive unit 2 also includes a drive frame 22, a drive motor 23, a drive gear 24, a driven gear ring 25, and two vertical limiting plates 26. The rotating shaft 21 includes a shaft body 212, with sliders 211 at both ends of the shaft body 212 that are slidably connected to the slide openings 331. The outer circumferential edge of the shaft body 212 is sealed and fitted to the inner circumferential wall of the slide tube 33. A central disk 213 is integrally connected to the middle of the shaft body 212, and both ends of the central disk 213 are integrally connected with a coaxial line. The outer diameter of the side ring 214 is smaller than that of the outer diameter of the central disk 213. The drive frame 22 is fixed above the base 11. The drive motor 23 is fixed to the top of the drive frame 22 and is connected to the drive gear 24. The driven gear ring 25 meshes with the drive gear 24 directly above it and is fixedly sleeved on the outside of the central disk 213. Two limiting plates 26 are respectively disposed on both sides of the central disk 213 and fit against the central disk 213. The limiting plates 26 are fixed above the drive frame 22 and are sealed on the outside of the side ring 214. In this way, the axial relative sliding connection and radial relative fixed connection between the rotating shaft 21 and the transmission wheel 32 are realized.

[0038] A further improvement is that the two distance sensors 42 are slidably connected to the transmission frames 34 of the two transmission units 3, and the sliding direction is parallel to the axial direction of the rotation axis 21. A fastener 43 is provided between each distance sensor 42 and the corresponding transmission frame 34. The fastener 43 is used to lock the distance sensor 42 onto the transmission frame 34.

[0039] This design allows for easy adjustment of the positions of the two distance sensors 42 based on the distribution spacing of the rivet screws 72 on both sides of the mounting plate assembly 7 after adjusting the distribution interval of the conveyor belt 31. This ensures that after the conveyor belt 31 moves the mounting plate assembly 7, the movement trajectory of the rivet screws 72 is located directly above the corresponding distance sensor 42.

[0040] Specifically, such as Figure 10 As shown, the support leg 342 located in the middle is fixedly connected to a slide plate 46. The top surface of the slide plate 46 is marked with a scale. A sliding sleeve 47 is slidably fitted on the slide plate 46. The fastener 43 is a fastening bolt threaded to the bottom of the sliding sleeve 47. The distance sensor 42 is fixed to the top of the sliding sleeve 47. This allows for easy adjustment of the position of the sliding sleeve 47 to adjust the position of the distance sensor 42 so that it is located directly below the movement trajectory of the rivet screw 72. By tightening the fastening bolt, the rod of the distance sensor 42 abuts against the bottom surface of the slide plate 46, thereby locking and fixing the positions of the sliding sleeve 47 and the distance sensor 42.

[0041] The detection assembly 4 also includes an inverted U-shaped detection frame 45, with two conveyor belts 31 running through the inside of the detection frame 45. The two ends of the detection frame 45 are fixed above the base 11. The camera 41 is fixed to the top of the detection frame 45. Two supplementary lights 44 are also fixed inside the detection frame 45. The two supplementary lights 44 are located on the feed side and the discharge side of the camera 41, respectively, to facilitate supplementary lighting during the image acquisition and code scanning process of the camera 41 and ensure the accuracy of signal acquisition.

[0042] A further improvement is that the sorting unit includes a sorting cylinder 53 and a push plate 54. The bottom surface of the push plate 54 is in contact with the horizontal plane where the transmission surface is located. The cylinder of the sorting cylinder 53 is fixed on the frame 1. The piston rod is connected to the push plate 54 and its axis is parallel to the distribution direction of the two transmission units 3.

[0043] Specifically, the cylinder of the sorting cylinder 53 is parallel to the axis of the rotating shaft 21 and is fixedly connected to the inspection frame 45 through the sorting frame 55. The piston rod of the sorting cylinder 53 faces the two conveyor belts 31 and is fixedly connected to a push plate 54 whose length direction is parallel to the length direction of the base 11. The defective box 51 is located below the push plate 54.

[0044] With the above structure, when a defective product is detected, the sorting cylinder 53 drives the push plate 54 to move towards the defective product on the two conveyor belts 31. After the defective product is displaced in its own width direction, one side of it loses the support of the conveyor belt 31 and falls into the defective product box 51 below. Then the sorting cylinder 53 drives the push plate 54 back to its original position, so that other qualified products can pass through and enter the finished product box 52 from the output end of the conveyor belt 31.

[0045] A further improvement is that a guide assembly 6 is also provided on the feed end of each conveyor belt 31. The guide assemblies 6 cooperate with each other to place the mounting plate assembly 7 stably on the conveying surface of the two conveyor belts 31 from top to bottom, and the rivet screws 72 on the mounting plate assembly 7 are set downward.

[0046] By setting up the material guiding component 6, it helps the testing personnel to place the mounting plate assembly 7 smoothly from top to bottom on the two conveyor belts 31, so that the rotation of the conveyor belts 31 drives the movement of the mounting plate assembly 7.

[0047] A further improvement is that each material guiding assembly 6 includes a material guiding plate 61, a material guiding roller 62, a roller frame 63, and an elastic element 64. The length direction of the material guiding plate 61 and the axial direction of the material guiding roller 62 are parallel to the transmission direction of the corresponding conveyor belt 31. The material guiding plate 61 is fixed above the corresponding transmission frame 34. The material guiding roller 62 rotates around its own axis above the roller frame 63 and is located above the transmission surface. The roller frame 63 slides parallel to the axial direction of the rotation shaft 21 on the material guiding plate 61 and is connected to the material guiding plate 61 through the elastic element 64. The elastic element 64 applies pressure to the roller frame 63 and the pressure direction is parallel to the axial direction of the rotation shaft 21. The pressure directions of the elastic elements 64 of the two material guiding assemblies 6 are directly opposite each other.

[0048] Specifically, such as Figure 4 , Figure 5 , Figure 12 and Figure 13 As shown, in the material guiding assembly 6, the material guiding plate 61 is fixed above the side plate 341, extends along the length direction parallel to the base 11, and is adjacent to the feed end of the conveyor belt 31. The material guiding plate 61 includes a transition section 611 and a vertical section 612 connected sequentially from top to bottom. The vertical section 612 is fixedly connected to the conveyor frame 34 and is vertically arranged. The transition section 611 of the material guiding plates 61 of the two material guiding assemblies 6 encloses to form a transition channel with a narrowing shape from the upper right to the lower right. The bottom width dimension of the transition channel is greater than the width dimension of the mounting plate assembly 7. The bottom of the vertical section 612 is fixed to the top of the side plate 341. A strip-shaped opening 6121 extending along the length direction parallel to the base 11 is provided on the vertical section 612.

[0049] The vertical section 612 has slide rods 65 fixed at both ends on the side facing away from the drive unit 2. The slide rods 65 are axially parallel to the width direction of the base 11. The roller frame 63 passes through the strip opening 6121 and slides on the slide rods 65. A protruding plate 651 is fixed at the end of the slide rod 65. The elastic element 64 is a compression spring, and its two ends are connected to the protruding plate 651 and the roller frame 63 respectively. The guide roller 62 rotates on the roller frame 63.

[0050] Without being affected by other forces, the spring force causes the roller frame 63 to abut against the side of the vertical section 612 facing away from the drive unit 2, thereby shortening the distance between the guide rollers 62 in the two guide assemblies 6. This makes the minimum distance between the two guide rollers 62 less than the width D of the mounting plate assembly 7 and greater than the distance d between the two side riveting screws 72. The transition sections 611 on both sides form a constricted shape that is larger at the top and smaller at the bottom, which facilitates the insertion of the mounting plate assembly 7. This allows the two sides of the mounting plate assembly 7 to abut against the two guide rollers 62. The rotation of the guide rollers 62 reduces the wear on the mounting connecting plate 71, making it easier for the mounting connecting plate 71 to continue moving downward. During the downward movement, the elastic element 64 is compressed, causing the elastic element 64 to react on the mounting connecting plate 71, which helps the mounting connecting plate 71 to be placed centrally on the two conveyor belts 31 for smooth subsequent movement. To further reduce wear, the bottom width of the transition channel is greater than the width of the mounting plate assembly 7, avoiding contact wear between the mounting connecting plate 71 and the vertical section 612.

[0051] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A testing device for integrally molded riveting screws on automotive mounting plates, characterized in that, include: frame; The transmission assembly includes a drive unit and two transmission units facing each other in a horizontal direction. Each transmission unit includes a transmission belt with a horizontal transmission surface. The drive unit drives the transmission belt in each transmission unit to rotate around its own circumference on the frame. The distance between the two transmission belts is between the width of the mounting plate assembly and the distribution spacing of the rivet screws on both sides of the mounting plate assembly. The detection assembly, mounted on the frame and located between the two conveyor belts, includes a camera positioned above and downward on the conveyor surface and two distance sensors positioned below and upward on the conveyor surface. The two distance sensors correspond to the rivet screws on both sides of the mounting plate assembly. The sorting assembly is located on the discharge side of the detection assembly and includes a sorting unit, a defective product box and a finished product box, both of which are open at the top and distributed along the conveyor belt direction. The finished product box is located below the discharge ends of the two conveyor belts. The sorting unit is used to transport the defective products on the two conveyor belts into the defective product box.

2. The detection device for integrally formed riveting screws on automotive mounting plates according to claim 1, characterized in that: The transmission unit further includes two transmission wheels located at both ends of the transmission belt and connected by the transmission belt. The output end of the drive unit is connected to the two transmission wheels on the same axis in the two transmission units.

3. The detection device for integrally formed riveting screws on automotive mounting plates according to claim 2, characterized in that: The drive unit is located between the two transmission units. The output end of the drive unit is a rotating shaft that rotates around its own axis on the frame. The two ends of the rotating shaft are axially slidably connected to the two transmission wheels and radially fixedly connected.

4. The detection device for integrally formed riveting screws on automotive mounting plates according to claim 3, characterized in that: A slide tube is fixed coaxially to the transmission wheel connected to the rotating shaft. A slider and a sliding opening are provided between the rotating shaft and the slide tube. The slider slides in the sliding opening along an axial direction parallel to the rotating shaft.

5. The detection device for integrally formed riveting screws on automotive mounting plates according to claim 3, characterized in that: Each transmission unit includes a transmission frame. The transmission wheel rotates around its own axis on the corresponding transmission frame. The transmission frame slides on the frame along an axial direction parallel to the rotation axis and is provided with a locking member between it and the frame. The locking member is used to lock the position of the transmission frame on the frame.

6. The detection device for integrally formed riveting screws on automotive mounting plates according to claim 5, characterized in that: The two distance sensors are slidably connected to the transmission frames of the two transmission units, and the sliding direction is parallel to the axial direction of the rotation axis. A fastener is provided between each distance sensor and the corresponding transmission frame, and the fastener is used to lock the distance sensor onto the transmission frame.

7. The detection device for integrally formed riveting screws on automotive mounting plates according to claim 5, characterized in that: Each conveyor belt is also equipped with a material guiding assembly at its feed end. The material guiding assemblies cooperate with each other to place the mounting plate assembly stably from top to bottom on the conveyor surfaces of the two conveyor belts, with the riveting screws on the mounting plate assembly facing downwards.

8. The detection device for integrally formed riveting screws on automotive mounting plates according to claim 7, characterized in that: Each material guiding assembly includes a guide plate, a guide roller, a roller frame, and an elastic element. The length direction of the guide plate and the axial direction of the guide roller are parallel to the transmission direction of the corresponding conveyor belt. The guide plate is fixed above the corresponding conveyor frame. The guide roller rotates around its own axis above the roller frame and is located above the transmission surface. The roller frame slides parallel to the axial direction of the rotation axis on the guide plate and is connected to the guide plate through the elastic element. The elastic element applies pressure to the roller frame in a direction parallel to the axial direction of the rotation axis. The elastic elements of the two material guiding assemblies are arranged with their pressure directions facing each other.

9. The detection device for integrally formed riveting screws on automotive mounting plates according to claim 8, characterized in that: The guide plate includes a transition section and a vertical section connected sequentially from top to bottom. The vertical section is fixedly connected to the transmission frame and is vertically arranged. The transition sections of the guide plates of the two guide assemblies enclose each other to form a transition channel that narrows from the upper right to the lower right. The bottom width of the transition channel is greater than or equal to the width of the mounting plate assembly.

10. The detection device for integrally formed riveting screws on automotive mounting plates according to any one of claims 1-9, characterized in that: The sorting unit includes a sorting cylinder and a push plate. The bottom surface of the push plate is in contact with the horizontal plane where the transmission surface is located. The cylinder of the sorting cylinder is fixed on the frame. The piston rod is connected to the push plate and its axis is parallel to the distribution direction of the two transmission units.

Images