Alignment neatening structure of assembly line

Abstract

The utility model discloses an aligning and neatening structure of an assembly line. The aligning and neatening structure comprises a structural frame and two conveying belts. A detection seam is formed between the two conveying belts; the structural frame is provided with a detection assembly; a baffle plate is arranged above the conveying belt; the upper end of the baffle is rotationally connected with the structural frame, and the lower end of the baffle selectively abuts against the upper end of the conveying belt. A telescopic cylinder is arranged on the structural frame; a supporting plate is arranged on the structural frame; a release groove is formed in the upper end of the supporting plate and located under the baffle. The baffle stops the to-be-detected part for deviation correction, the parallel detection seam of the to-be-detected part passes through the detection assembly, the release groove reduces the acting force of the baffle on the conveying belt, the thin part can be conveniently intercepted, and smoothness of the conveying belt can be guaranteed. The position of the sensor used for detecting the position of the to-be-detected component can be flexibly changed, and the sensor has good compatibility to the to-be-detected components of different sizes and specifications.

Description

Technical Field

[0001] This utility model belongs to the field of PCB board manufacturing technology, and in particular relates to an alignment and regularization structure for an assembly line. Background Technology

[0002] With the development of electronic technology, PCB design and manufacturing have become increasingly complex, and the requirements for quality inspection are also becoming more stringent. As a key component of electronic products, the quality of the PCB directly affects the performance and reliability of the entire product. Traditional PCB inspection mainly relies on manual inspection techniques, which depend on the operator's vision and experience to identify defects such as short circuits, open circuits, and poor solder joints. However, this inspection method is greatly affected by human factors; inspectors may miss or misidentify defects due to fatigue, negligence, or other reasons, making it difficult to meet the ever-increasing production demands and the requirements for high-precision quality inspection.

[0003] Chinese patent document CN220444468U discloses a PCB board solder joint visual inspection mechanism, including a base, a mounting frame fixed above the base, a finished product conveyor belt mounted above the mounting frame, a fixing bolt penetrating one side of the base, a support plate movably connected to the other end of the fixing bolt, a fixing block fixed to one side of the base, a hydraulic cylinder mounted on one side of the fixing block, a hydraulic rod mounted on one side of the hydraulic cylinder, and a push plate fixed to the other end of the hydraulic rod. This PCB board solder joint visual inspection mechanism, through the coordinated use of the finished product conveyor belt, hydraulic cylinder, hydraulic rod, push plate, defective product conveyor belt, and inclined plate, allows the PCB board to be conveyed out via the finished product conveyor belt if it passes inspection. If unqualified solder joints are detected, the push plate pushes the PCB board, which then slides onto the defective product conveyor belt via the inclined plate, facilitating the automatic removal of unqualified PCB boards and reducing the workload of workers.

[0004] Vision systems typically perform image analysis based on a preset detection area or coordinate system. Inaccurate PCB board positioning can interfere with reference point identification, causing misalignment of the entire detection coordinate system and perspective distortion in image acquisition, affecting defect localization. Adding algorithms for correction forces the vision system to invest more computational resources in image correction and feature matching, potentially introducing noise interference. For example, background textures or conveyor belt edges might be misidentified as defects in the PCB itself. Therefore, the method described in the patented solution—directly inspecting the PCB board via a conveyor belt—does not meet practical application requirements. Utility Model Content

[0005] To overcome the technical problem in existing technologies where misalignment of PCBs on conveyor belts affects defect location and judgment, and relying solely on algorithmic correction forces the vision system to invest excessive computational resources, this invention aims to provide an alignment and straightening structure for an assembly line. This structure uses two conveyor belts with inspection seams to simultaneously inspect the front and back of the conveyed PCBs. It also includes baffles for correcting the PCBs, and a release groove at the lower end of the conveyor belt below the baffles to intercept the PCBs for correction. The release groove releases the downward pressure of the baffles, preventing excessive pressure on the conveyor belt when intercepting thinner PCBs, thus ensuring the normal operation of the conveyor line.

[0006] To achieve the above objectives, this utility model employs the following technical solution: a standardized alignment structure for an assembly line, comprising a structural frame and two conveyor belts disposed on the structural frame; the two conveyor belts have the same conveying direction and are linearly arranged along the conveying direction; a detection seam is provided between the two conveyor belts; detection components are respectively disposed above and below the structural frame, directly opposite the detection seam; a baffle is disposed above the conveyor belt near the feeding end; the upper end of the baffle is rotatably connected to the structural frame, and the lower end can selectively abut against the upper end of the adjacent conveyor belt; a telescopic cylinder is disposed on the structural frame and is kinetically connected to the baffle; wherein, a support plate is disposed on the structural frame inside the conveyor belt, the upper end of the support plate abutting against the upper end of the inner wall of the conveyor belt; a release groove is disposed on the upper end of the support plate, the release groove being located directly below the baffle.

[0007] The support plate provides support for the conveyor belt, making the upper end of the conveyor belt horizontal, which helps to improve the stability of the movement of the component to be tested above; when the baffle rotates downward to abut against the upper end of the conveyor belt, the conveyor belt generates downward elastic deformation. The deformation zone is located in the release groove, which can not only ensure the smooth sliding of the conveyor belt, but also intercept thinner components to be tested, preventing them from getting stuck between the baffle and the conveyor belt.

[0008] When the baffle stops the component to be inspected, the component slides relative to the conveyor belt, making it parallel to the inspection seam, and then passes through the inspection assembly. This reduces the computing resources of the vision system and improves the efficiency of vision inspection.

[0009] Furthermore, a base plate is provided at the upper end of the structural frame; the baffle is rotatably connected to the side of the base plate facing the detection seam; a stepped through groove is provided on the base plate, the length direction of the stepped through groove is perpendicular to the conveying direction of the conveyor belt; multiple mounting blocks are slidably connected in the stepped through groove; and sensors are provided on the mounting blocks.

[0010] Specifically, the base plate has a locking groove on the side away from the detection seam that communicates with the stepped through groove; a locking screw is threaded onto the mounting block; the locking screw passes through the locking groove.

[0011] The sensors on the mounting block are used to detect the movement or posture of the component to be tested on the conveyor belt, and can be flexibly adjusted according to the size of the component to be tested, thus improving compatibility.

[0012] Specifically, rectangular blocks are rotatably connected to both ends of the base plate; the baffle is installed on the outer wall of the rectangular block; a support arm is provided on the other outer wall opposite the baffle; one end of the telescopic cylinder is rotatably connected to the structural frame, and the other end is rotatably connected to the end of the support arm.

[0013] Preferably, the base plate has supports at both ends that are rotatably connected to the rectangular block; wire frames are provided on the upper ends of the two supports; the wire frames are located directly above the mounting block.

[0014] Furthermore, a galvanic steel strip is provided on the lower end of the baffle away from the detection seam; a weight-reducing notch is provided on the upper part of the baffle.

[0015] The steel strips increase wear resistance and lubrication, which helps to abut against the upper end of the conveyor belt, and the steel strips are also easy to replace.

[0016] Furthermore, two pulleys are rotatably connected to the outer side of the structural frame near the detection seam; the two pulleys are respectively connected to the two conveyor belts; one of the pulleys is mounted on the output shaft of the conveyor motor; two swing arms are provided on the outer side of the structural frame; one end of the swing arm is rotatably connected to the structural frame, and the other end is rotatably connected to a tensioning wheel; a synchronous belt for transmission is provided between the two tensioning wheels and the two pulleys.

[0017] Specifically, one of the two tensioning wheels abuts against the inner side of the timing belt, and the other abuts against the outer side of the timing belt; at least one of the swing arms is provided with an arc-shaped groove; and screws pass through the arc-shaped groove and are screwed onto the outer wall of the structural frame.

[0018] Furthermore, material transfer components are respectively provided at both ends of the structural frame; the material transfer components include a material bin, a horizontally arranged transverse linear module above the material bin, a longitudinal cylinder arranged on the moving end of the transverse linear module, and at least one suction cup arranged on the moving end of the longitudinal cylinder.

[0019] Specifically, a connecting member is provided on the moving end of the longitudinal cylinder; a perforated plate is provided at the lower end of the connecting member; and multiple suction cups are detachably connected to the lower end of the perforated plate.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. The baffle of this utility model can stop the parts to be inspected on the conveyor belt for correction, so that they pass through the inspection components in a posture parallel to the inspection seam for inspection, ensuring uniformity, reducing the input of computing resources of the vision system, and improving work efficiency; at the same time, the support plate provides support for the conveyor belt, ensuring the stability of the movement of the objects to be inspected on the conveyor belt, and the release groove reduces the force of the baffle on the conveyor belt, which not only facilitates the interception of thin parts, but also ensures the smooth movement of the conveyor belt.

[0022] 2. The mounting blocks on the base plate of this utility model can be flexibly adjusted, meaning the sensor used to detect the position of the component to be tested can be moved flexibly, exhibiting good compatibility with components of different sizes and specifications; simultaneously, the suction cup on the perforated plate can also be flexibly adjusted in installation position according to the corresponding component to be tested. Attached Figure Description

[0023] Figure 1 This is a front structural diagram of the present invention in its application state;

[0024] Figure 2 This is a side view of the present invention in its application state;

[0025] Figure 3 This is a schematic diagram of the structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the transverse linear module and perforated plate of this utility model;

[0027] Figure 5 This is a schematic diagram of the front structure of the baffle of this utility model;

[0028] Figure 6 This is a schematic diagram of the back structure of the baffle of this utility model;

[0029] Figure 7 This is a schematic diagram of the transmission part between the two conveyor belts of this utility model.

[0030] In the diagram: 1. Frame; 11. Fuma wheel; 21. Structural frame; 22. Support plate; 221. Release groove; 23. Inspection seam; 24. Conveyor motor; 25. Pulley; 26. Swing arm; 261. Arc groove; 27. Tensioning wheel; 31. Baffle; 311. P-type steel bar; 312. Weight reduction notch; 32. Telescopic cylinder; 33. Base plate; 331. Stepped through groove; 332. Locking groove; 333. Support; 34. Mounting block; 35. Rectangular block; 351. Support arm; 36. Gantry frame; 37. Wire frame; 4. Inspection component; 51. Lateral linear module; 52. Mounting plate; 53. Longitudinal cylinder; 54. Connecting component; 55. Perforated plate; 56. Vacuum component; 6. Hopper. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0032] In the description of this utility model, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In this description of the utility model, "a number" means two or more, unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, terms such as "set" and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] See Figures 1-7A standardized alignment structure for an assembly line includes a frame 1, a structural frame 21 horizontally disposed in the middle of the frame 1, two conveyor belts horizontally disposed on the structural frame 21, and two material transfer assemblies disposed on the frame 1 at both ends of the structural frame 21. The two conveyor belts have the same conveying direction and are linearly arranged along the conveying direction. A detection seam 23 is provided between the two conveyor belts. Detection assemblies 4, directly opposite the detection seam 23, are respectively disposed above and below the structural frame 21.

[0036] The lower part of the frame 1 is provided with a plurality of evenly distributed casters 11; the outer side of the frame 1 is provided with a shell for sealing.

[0037] A base plate 33 is provided on the structural frame 21. The base plate 33 is located above the conveyor belt near the material transfer assembly used for feeding. A baffle 31 is provided on one end of the base plate 33 facing the detection seam 23. The upper end of the baffle 31 is rotatably connected to the base plate 33, and the lower end can optionally abut against the upper end of the adjacent conveyor belt. A support plate 22 is provided on the structural frame 21 inside the conveyor belt. The upper end of the support plate 22 abuts against the upper end of the inner wall of the conveyor belt. A release groove 221 is provided on the upper end of the support plate 22, and the release groove 221 is located directly below the baffle 31. The length direction of the release groove 221, the length direction of the baffle 31, and the length direction of the base plate 33 are perpendicular to the conveying direction of the conveyor belt.

[0038] Supports 333 are respectively provided at both ends of the base plate 33 on both sides of the conveyor belt conveying direction; rectangular blocks 35 are rotatably connected to the supports 333; baffles 31 are installed on the outer wall of the rectangular blocks 35; a support arm 351 is provided on the other outer wall opposite the baffles 31; a gantry frame 36 is provided on the base plate 33; a telescopic cylinder 32 is provided between the gantry frame 36 and the support arm 351; the two ends of the telescopic cylinder 32 are rotatably connected to the end of the support arm 351 and the upper end of the gantry frame 36, respectively; the telescopic cylinder 32 is a pneumatic cylinder or an electric cylinder.

[0039] The base plate 33 is provided with a stepped through groove 331, the length direction of which is perpendicular to the conveying direction of the conveyor belt; a plurality of mounting blocks 34 are slidably connected within the stepped through groove 331; sensors are mounted on the mounting blocks 34. A locking groove 332 communicating with the stepped through groove 331 is provided on the side of the base plate 33 away from the detection slot 23; a locking screw is threaded onto the mounting block 34; the locking screw passes through the locking groove 332.

[0040] The two supports 333 are provided with wire frames 37 at their upper ends; the wire frames 37 are located directly above the mounting block 34.

[0041] A acetal strip 311 is provided on the side of the lower end of the baffle 31 away from the detection seam 23; a weight reduction notch 312 is provided on the upper part of the baffle 31, which penetrates the baffle 31; the weight reduction notch 312 is a round hole or an oblong hole.

[0042] Two pulleys 25 are rotatably connected to the outer side of the structural frame 21 near the detection seam 23; the two pulleys 25 are respectively connected to the two conveyor belts; one of the pulleys 25 is mounted on the output shaft of the conveyor motor 24; two swing arms 26 are provided on the outer side of the structural frame 21; one end of the swing arm 26 is rotatably connected to the structural frame 21, and the other end is rotatably connected to a tension wheel 27; a synchronous belt for transmission is provided between the two tension wheels 27 and the two pulleys 25.

[0043] One of the two tensioning rollers 27 is pressed against the inner side of the synchronous belt, and the other is pressed against the outer side of the synchronous belt; at least one of the swing arms 26 is provided with an arc-shaped groove 261; a screw passes through the arc-shaped groove 261 and is screwed onto the outer wall of the structural frame 21.

[0044] The material transfer assembly includes a hopper 6 mounted on the frame 1, a horizontally mounted transverse linear module 51 above the hopper 6, a mounting plate 52 mounted on the moving end of the transverse linear module 51, a longitudinally mounted cylinder 53 mounted on the mounting plate 52, a connecting member 54 mounted on the moving end of the longitudinally mounted cylinder 53, a perforated plate 55 at the lower end of the connecting member 54, and a plurality of suction cups detachably connected to the lower end of the perforated plate 55; a vacuum assembly 56 is mounted on the mounting plate 52.

[0045] Working process: The transverse linear module 51 reciprocates between the hopper 6 and the adjacent conveyor belt. The longitudinal cylinder 53 moves downward, causing the suction cup to press against the component to be inspected at the top of the hopper 6 and complete the adsorption. Then, the longitudinal cylinder 53 moves upward. After the transverse linear module 51 moves the component to be inspected onto the conveyor belt, the suction cup releases the component, allowing it to fall onto the conveyor belt.

[0046] The conveyor belt transports the component to be inspected to abut against the baffle 31. The component slides relative to the conveyor belt, aligning it with the inspection seam. Then, the telescopic cylinder 32 extends, causing the support arm 351 to rotate, which in turn rotates the rectangular block 35. The rotation of the rectangular block 35 causes the baffle 31 to rotate, thus removing the lower end of the baffle 31 from abutment against the conveyor belt. The component to be inspected moves synchronously with the conveyor belt, and the inspection assembly completes the inspection process as it passes the inspection seam. Finally, the telescopic rod 32 retracts, and the baffle 31 rotates downwards to abut against the upper end of the conveyor belt. The upper end of the conveyor belt deforms downwards, with the deformation zone located within the release groove 221.

[0047] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A standardized alignment structure for an assembly line, characterized in that: The device includes a structural frame and two conveyor belts mounted on the structural frame. The two conveyor belts have the same conveying direction and are linearly arranged along the conveying direction. A detection seam is provided between the two conveyor belts. Detection components are respectively provided above and below the structural frame, facing the detection seam. A baffle is provided above the conveyor belt near the feeding end. The upper end of the baffle is rotatably connected to the structural frame, and the lower end can optionally abut against the upper end of the adjacent conveyor belt. A telescopic cylinder is provided on the structural frame and is kinetically connected to the baffle. A support plate is provided on the structural frame inside the conveyor belt, and the upper end of the support plate abuts against the upper end of the inner wall of the conveyor belt. A release groove is provided on the upper end of the support plate, and the release groove is located directly below the baffle.

2. The regular structure as described in claim 1, characterized in that: A base plate is provided at the upper end of the structural frame; the baffle is rotatably connected to the side of the base plate facing the detection seam; a stepped through groove is provided on the base plate, the length direction of the stepped through groove is perpendicular to the conveying direction of the conveyor belt; multiple mounting blocks are slidably connected in the stepped through groove; sensors are provided on the mounting blocks.

3. The regular structure as described in claim 2, characterized in that: The base plate has a locking groove on the side away from the detection seam that communicates with the stepped through groove; a locking screw is threaded onto the mounting block; the locking screw passes through the locking groove.

4. The regular structure as described in claim 2, characterized in that: Rectangular blocks are rotatably connected to both ends of the base plate; a baffle is installed on the outer wall of the rectangular block; a support arm is provided on the other outer wall opposite the baffle; one end of the telescopic cylinder is rotatably connected to the structural frame, and the other end is rotatably connected to the end of the support arm.

5. The regular structure as described in claim 4, characterized in that: The base plate is provided with supports at both ends that are rotatably connected to the rectangular block; wire frames are provided on the upper ends of the two supports; the wire frames are located directly above the mounting block.

6. The regular structure as described in any one of claims 1-5, characterized in that: A steel strip is provided on the lower end of the baffle away from the detection seam; a weight-reducing notch is provided on the upper part of the baffle.

7. The regular structure as described in any one of claims 1-5, characterized in that: Two pulleys are rotatably connected to the outer side of the structural frame near the detection seam; the two pulleys are respectively connected to the two conveyor belts; one of the pulleys is mounted on the output shaft of the conveyor motor; two swing arms are provided on the outer side of the structural frame; one end of the swing arm is rotatably connected to the structural frame, and the other end is rotatably connected to a tensioning wheel; a synchronous belt for transmission is provided between the two tensioning wheels and the two pulleys.

8. The regular structure as described in claim 7, characterized in that: One of the two tensioning pulleys abuts against the inner side of the timing belt, and the other abuts against the outer side of the timing belt; at least one of the swing arms is provided with an arc-shaped groove; a screw passes through the arc-shaped groove and is screwed onto the outer wall of the structural frame.

9. The regular structure as described in any one of claims 1-5, characterized in that: Material transfer components are respectively provided at both ends of the structural frame; the material transfer components include a material bin, a horizontal linear module arranged above the material bin, a longitudinal cylinder arranged on the moving end of the horizontal linear module, and at least one suction cup arranged on the moving end of the longitudinal cylinder.

10. The regular structure as described in claim 9, characterized in that: The moving end of the longitudinal cylinder is provided with a connecting member; the lower end of the connecting member is provided with a perforated plate; and multiple suction cups are detachably connected to the lower end of the perforated plate.

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