Conveying mechanism and circuit board detection equipment

Abstract

The utility model discloses a conveying mechanism and circuit board detection equipment. The conveying mechanism comprises a power assembly, a conveying assembly and a rolling supporting assembly, the power assembly is connected with the conveying assembly, the power assembly is used for driving the conveying assembly to move so as to drive a circuit board on the conveying assembly to move, and the rolling supporting assembly is connected with the conveying assembly so as to drive the circuit board on the conveying assembly to move. The rolling supporting assembly is used for supporting the conveying assembly. The friction force between the conveying assembly and the supporting part is effectively reduced, so that the abrasion of the conveying assembly is reduced, and the service life of the conveying assembly is prolonged. The rolling supporting assembly makes contact with the conveying assembly and can provide supporting force, so that the conveying assembly is more stable in the operation process, the slipping phenomenon caused by large bearing is reduced, and the stability and detection precision of linear scanning photographing are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to conveying technical field especially relates to a conveying mechanism and circuit board detection equipment. BACKGROUND

[0002] In the PCB (Printed Circuit Board, printed circuit board) manufacturing process, line sweep detection is the key link to ensure product quality. At present, the industry generally adopts a flat support structure as the core component of the conveying mechanism, and supports the PCB through a large-area flat plate under the belt. However, under this structure, the belt and the plate form a large-area surface contact, resulting in a large frictional resistance during operation. The belt is prone to wear.

[0003] In the prior art, the belt material is usually enhanced to alleviate the wear of the belt. However, this method requires the use of high-wear-resistant materials or complex processes, significantly increasing the manufacturing cost. In addition, when conveying heavy PCBs, the belt is subjected to a large load, and the friction is further intensified, which not only significantly shortens the service life of the belt, but also easily causes skidding, causing displacement or vibration of the PCB, affecting the stability and detection accuracy of line sweep photography. SUMMARY

[0004] The technical problem to be solved by the utility model is that, in the prior art, the belt material is enhanced to alleviate the wear of the belt, and when conveying heavy PCBs, the belt is subjected to a large load, which easily causes skidding, causing displacement or vibration of the PCB, affecting the stability and detection accuracy of line sweep photography. The utility model provides a conveying mechanism and a circuit board detection equipment.

[0005] To solve the above problems, on the one hand, the utility model embodiment provides a conveying mechanism, which comprises a power assembly, a conveying assembly and a rolling support assembly, the power assembly is connected with the conveying assembly, the power assembly is used for driving the conveying assembly to move, so as to drive the circuit board on the conveying assembly to move, the rolling support assembly is connected with the conveying assembly, and the rolling support assembly is used for supporting the conveying assembly.

[0006] Optionally, the rolling support assembly comprises a support roller, the support roller is connected with the conveying assembly, and the support roller can support the conveying assembly.

[0007] Optionally, the number of support rollers is multiple, and the multiple support rollers are arranged at intervals along the conveying direction of the conveying assembly.

[0008] Optionally, the rolling support assembly comprises multiple support rollers, and the multiple support rollers are coaxially arranged along a direction intersecting the conveying direction of the conveying assembly.

[0009] Optionally, the conveying mechanism further comprises a fixed support assembly, the fixed support assembly is connected with the conveying assembly, and the fixed support assembly is arranged in the conveying direction of the conveying assembly and is spaced apart from the rolling support assembly.

[0010] Optionally, the fixed support assembly comprises at least one support plate, and the support plate is arranged in the conveying direction of the conveying assembly and is spaced apart from the rolling support assembly.

[0011] Optionally, the power assembly comprises a driving roller and a driven roller, the conveying assembly comprises a conveying belt, the driving roller and the driven roller are arranged in the conveying direction of the conveying belt and are spaced apart from each other, and the conveying belt is arranged around the driving roller and the driven roller.

[0012] Optionally, the power assembly further comprises a driving member, an output end of the driving member is connected with the driving roller, and the driving member is used to drive the driving roller to rotate around a first axis, so as to drive the conveying assembly to convey the circuit board in the conveying direction of the conveying assembly.

[0013] Optionally, the driving member comprises a driving motor and a speed reducer, an input end of the speed reducer is coaxially connected with an output end of the driving motor, and an output end of the speed reducer is coaxially connected with the driving roller.

[0014] Optionally, the conveying mechanism further comprises a tensioning assembly, and the tensioning assembly is arranged between the driving roller and the driven roller in the conveying direction of the conveying assembly, and the tensioning assembly is used to tension the conveying belt.

[0015] Optionally, the tensioning assembly comprises a tensioning roller, the tensioning roller is connected with the conveying assembly, and the tensioning roller can tension the conveying assembly.

[0016] Optionally, the number of the tensioning rollers is plural, and the plural tensioning rollers are arranged in the conveying direction of the conveying assembly and are spaced apart from each other.

[0017] Optionally, the outer circumferential surface of part of the tensioning rollers is in abutment with the inner side surface of the conveying belt, and the outer circumferential surface of the other part of the tensioning rollers is in abutment with the outer side surface of the conveying belt.

[0018] The utility model discloses a conveying mechanism, through power component drive conveying assembly movement, and then drive its line way board removal. Meanwhile, the rolling support component is connected with the conveying assembly, and provides support for the conveying assembly to ensure its stable operation. The rolling support component is connected (contacted) with the conveying assembly, and adopts rolling friction to replace part sliding friction, effectively reduces the friction between the conveying assembly and the support part, thereby reducing the wear of the conveying assembly and prolonging its service life. The rolling support component is contacted with the conveying assembly and can provide support force, so that the conveying assembly is more stable during operation, and the skidding phenomenon caused by heavy load is reduced. When conveying heavy line way board (PCB), the displacement or vibration of PCB caused by the skidding of the conveying assembly can be effectively prevented, thereby ensuring the stable conveying of the line way board and being favorable to improving the stability and detection precision of line scanning and photographing.

[0019] The utility model discloses a kind of line way board detection equipment, including optical detection mechanism and above-mentioned conveying mechanism, the optical detection mechanism is used to detect the line way board on the conveying mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced to the drawings needed to be used in the description of the utility model embodiment, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0021] Fig. 1 It is the bottom view of conveying mechanism provided in an embodiment of the utility model;

[0022] Fig. 2 It is the perspective view of conveying mechanism provided in an embodiment of the utility model;

[0023] Fig. 3 It is the schematic diagram of conveying mechanism after removing part structure provided in an embodiment of the utility model.

[0024] The reference signs in the specification are as follows:

[0025] 1, power component;11, driving roller;12, driven roller;13, driving part;131, driving motor;132, speed reducer;2, conveying assembly;21, conveying belt;3, rolling support component;31, support roller;4, fixed support component;41, support plate;5, tensioning assembly;51, tensioning roller;6, rack;7, camera. DETAILED DESCRIPTION

[0026] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and 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 based on the specific circumstances.

[0029] like Figs. 1-3 As shown, one embodiment of this utility model provides a conveying mechanism, including a power component 1, a conveying component 2, and a rolling support component 3. The power component 1 is connected to the conveying component 2 and is used to drive the conveying component 2 to move, thereby moving the circuit board on the conveying component 2. The rolling support component 3 is connected to the conveying component 2 and is used to support the conveying component 2. In this embodiment, the design of the rolling support component 3 effectively distributes the load borne by the conveying component 2 (especially the conveyor belt 21), reducing the slippage of the conveyor belt 21 caused by heavy loads. This design ensures that the conveying mechanism can maintain stable operation even when conveying heavy PCBs, greatly reducing PCB displacement or vibration. The rolling support component 3 reduces the direct friction between the conveying component 2 (conveyor belt 21) and the support structure, reduces the wear rate of the conveyor belt 21, reduces the frequency of replacing the conveyor belt 21, reduces maintenance costs, and extends the service life of the entire conveying mechanism. At the same time, stable conveying ensures accurate focusing during photography, reduces image blurring or misalignment caused by vibration, thereby improving detection accuracy.

[0030] In an embodiment, the rolling support assembly 3 comprises a support roller 31, the support roller 31 is connected with the conveying assembly 2, and the support roller 31 is capable of supporting the conveying assembly 2. In this embodiment, the rolling support assembly 3 provides support force for the conveying assembly 2 through the support roller 31, and the support roller 31 rolls when the conveying assembly 2 operates. The number of the support roller 31 can be one or more, and the support roller 31 provides a stable support point for the conveying assembly 2, especially when heavy load is borne, which helps to reduce the deformation or skidding of the conveying belt 21 due to heavy load, thereby improving the stability of the conveying process. At the same time, stable conveying can ensure the stable operation of the PCB on the conveying line, which helps to maintain the high precision of the detection process such as line scanning and photographing.

[0031] In an embodiment, the number of the support roller 31 is multiple, and the multiple support rollers 31 are arranged at intervals along the conveying direction of the conveying assembly. In this embodiment, the multiple support rollers 31 are arranged at intervals along the conveying direction, which provides multiple stable support points for the conveying assembly 2 (such as the conveying belt 21). Especially when heavy load is borne, this helps to reduce the deformation, vibration and skidding of the conveying belt 21 during the conveying process. Stable support ensures the accurate position of the PCB on the conveying line, reduces displacement and vibration, and thereby improves the stability of the detection process such as line scanning and photographing.

[0032] In an embodiment, the rolling support assembly 3 comprises multiple support rollers, and the multiple support rollers are coaxially arranged along a direction intersecting the conveying direction of the conveying assembly 2. In this embodiment, the multiple support rollers are arranged in a direction perpendicular to the conveying direction, and it can be understood that the multiple support rollers are coaxially arranged to form a structure similar to the support roller 31. The coaxial arrangement of the multiple support rollers provides stable and uniform support for the conveying assembly 2, which helps to reduce vibration and displacement during the conveying process, especially when heavy PCBs are conveyed. Stable support ensures the accurate position of the PCB on the conveying line, and improves the precision of the detection process such as line scanning and photographing.

[0033] In an embodiment, the conveying mechanism further comprises a fixed support assembly 4, the fixed support assembly 4 is connected with the conveying assembly 2, and the fixed support assembly 4 is arranged at intervals with the rolling support assembly 3 in the conveying direction of the conveying assembly 2. In this embodiment, the conveying assembly 2 and the rolling support assembly 3 are in rolling friction, and the conveying assembly 2 and the fixed support assembly 4 are in sliding friction. The fixed support assembly 4 provides a stable reference point for the PCB being conveyed. Since the fixed support assembly 4 is stationary and stably connected (in contact) with the conveying assembly 2, it can provide a stable support for the conveying assembly 2 and a stable photographing reference for the camera 7, which helps to ensure accurate focusing during photographing and reduces image blur or misplacement caused by vibration or displacement of the conveying assembly 2, thereby improving the clarity and accuracy of the photographing.

[0034] In an embodiment, the fixed support assembly 4 comprises at least one support plate 41, which is arranged in the conveying direction of the conveying assembly 2 and is spaced apart from the rolling support assembly 3. The conventional conveying mechanism uses a large flat plate to support directly below the conveying belt 21, so that the conveying assembly 2 (conveying belt 21) and the flat plate form a large-area surface contact, which generates a large frictional resistance during operation. In this embodiment, by arranging the rolling support and the support plate 41, the conveying assembly 2 and the rolling support form a rolling friction, and the conveying assembly 2 and the support plate 41 form a small-area sliding friction. Compared with the conventional large-area surface contact, the frictional resistance is significantly reduced, and when conveying heavy PCBs, the skidding phenomenon caused by large load and large friction is reduced. At the same time, the arrangement of the support plate 41 can ensure the planarity of the conveying assembly 2 at the line scanning and photographing position. When conveying heavy PCBs, the support plate 41 can effectively prevent the deformation of the conveying assembly 2 (conveying belt 21) at the line scanning and photographing position, ensure the flatness of the conveying belt 21, and help to improve the stability and clarity of line scanning and photographing, ensure the accuracy of detection and analysis, and improve the product quality and production efficiency.

[0035] In an embodiment, the power assembly 1 comprises a driving roller 11 and a driven roller 12, and the conveying assembly 2 comprises a conveying belt 21. The driving roller 11 and the driven roller 12 are arranged in the conveying direction of the conveying belt 21 and are spaced apart, and the conveying belt 21 is wound around the driving roller 11 and the driven roller 12. In this embodiment, the support plate 41 can be located between the driving roller 11 and the rolling support, or between the driven roller 12 and the rolling support. The driving roller 11 serves as a power source and is driven by a motor or other equipment, which can drive the continuous operation of the conveying belt 21. The driven roller 12 serves as an auxiliary roller and rotates under the drive of the driving roller 11, thereby carrying and transmitting the PCB together with the driving roller 11, ensuring the efficiency and stability of power transmission, so that the conveying belt 21 can run smoothly at a constant speed. The conveying belt 21 is wound between the driving roller 11 and the driven roller 12, forming a stable conveying channel. The PCB is placed on the conveying belt 21 and moves in the conveying direction under the drive of the driving roller 11. The close cooperation of the driven roller 12 ensures the continuity and stability of the conveying belt 21, avoiding the sliding or falling of the PCB during conveying, thereby improving the conveying efficiency and safety.

[0036] In an embodiment, the power assembly 1 further comprises a driving member 13, an output end of the driving member 13 is connected with the driving roller 11, and the driving member 13 is configured to drive the driving roller 11 to rotate around the first axis, so as to drive the circuit board to be conveyed along the conveying direction of the conveying assembly 2. In the embodiment, the first axis is perpendicular to the conveying direction of the conveying assembly 2, and the driving member 13 can directly and efficiently transmit power to the driving roller 11 through the connection of the output end of the driving member 13 with the driving roller 11. The direct driving manner reduces the loss in the process of power transmission and improves the efficiency of power transmission. Meanwhile, the rotation of the driving roller 11 drives the movement of the conveying belt 21, thereby realizing the smooth and continuous conveying of the circuit board along the conveying direction.

[0037] In an embodiment, the driving member 13 comprises a driving motor 131 and a speed reducer 132, an input end of the speed reducer 132 is coaxially connected with an output end of the driving motor 131, and an output end of the speed reducer 132 is coaxially connected with the driving roller 11. In the embodiment, the speed reducer 132 plays a role of speed reduction and torque increase in the process of power transmission, which helps to protect the driving motor 131 from overload and wear. Meanwhile, the coaxial connection design reduces the friction and vibration between the transmission components, thereby reducing the probability of failure. These factors together improve the reliability and service life of the equipment, and ensure the stability and performance of the equipment in a long time of operation.

[0038] In an embodiment, the conveying mechanism further comprises a tensioning assembly 5, which is arranged between the driving roller 11 and the driven roller 12 along the conveying direction of the conveying assembly 2, and the tensioning assembly 5 is configured to tension the conveying belt 21. In the embodiment, the conveying direction of the conveying assembly 2 is the front-rear direction, and the tensioning assembly 5 is located below the driving roller 11 and the driven roller 12. The tensioning assembly 5 can keep the conveying belt 21 in a tensioned state between the driving roller 11 and the driven roller 12, thereby avoiding the slack or excessive tightness of the conveying belt 21, helping to ensure the smooth operation of the conveying belt 21 in the conveying process and reduce the failure rate caused by vibration or displacement. Meanwhile, the tensioned conveying assembly 2 (conveying belt 21) can more effectively transmit power, thereby improving the conveying speed and shortening the production cycle.

[0039] In an embodiment, the tensioning assembly 5 comprises a tensioning roller 51, the tensioning roller 51 is connected with the conveying assembly 2 and can tension the conveying assembly 2. In the embodiment, the tensioning roller 51 can apply appropriate tensioning force through the contact with the conveying belt 21, thereby ensuring that the conveying belt 21 always maintains an appropriate tensioning state during operation, helping to avoid the problems such as slipping, deviation or accumulation of the conveying belt 21 caused by slack, and thereby ensuring the stability and continuity of the conveying process.

[0040] In an embodiment, the plurality of tensioning rollers 51 are arranged along the conveying direction of the conveying assembly 2. In this embodiment, the plurality of tensioning rollers 51 are arranged along the conveying direction, so that the tensioning force can be applied at different positions of the conveying assembly 2 (the conveying belt 21), and the multi-point tensioning can be realized, which can ensure that the conveying belt 21 is uniformly tensioned throughout the length, and the problems such as deformation, wear or rupture of the conveying belt 21 caused by excessive or insufficient local tension can be avoided.

[0041] In an embodiment, the outer circumferential surface of part of the plurality of tensioning rollers 51 abuts against the inner side surface of the conveying belt 21, and the outer circumferential surface of the other part of the plurality of tensioning rollers 51 abuts against the outer side surface of the conveying belt 21. In this embodiment, the plurality of tensioning rollers 51 form a bidirectional tensioning structure, and the bidirectional force can apply balanced tension to the conveying belt 21 from two directions, which further enhances the tensioning effect, makes the conveying belt 21 run more stably, and reduces the loosening and displacement of the conveying belt 21 during conveying, thereby improving the reliability of conveying.

[0042] In an embodiment, the conveying mechanism further comprises a rack 6, and the power assembly 1, the conveying assembly 2 and the rolling support assembly 3 are arranged on the rack 6, so that the stable transportation of the PCB can be realized.

[0043] According to the conveying mechanism provided in the embodiment of the utility model, the power assembly 1 drives the movement of the conveying assembly 2, and then drives the movement of the circuit board. At the same time, the rolling support assembly 3 is connected with the conveying assembly 2 to provide support for the conveying assembly 2, so that the conveying assembly 2 can run stably. The rolling support assembly 3 is connected (contacted) with the conveying assembly 2, and the rolling friction is used to replace part of the sliding friction, so that the friction between the conveying assembly 2 and the support part is effectively reduced, thereby reducing the wear of the conveying assembly 2 and prolonging the service life. The rolling support assembly 3 is in contact with the conveying assembly 2 and can provide support force, so that the conveying assembly 2 is more stable during operation, and the phenomenon of slipping caused by heavy load is reduced. When conveying heavy circuit boards (PCB), the displacement or vibration of the PCB caused by the slipping of the conveying assembly 2 can be effectively prevented, so that the stable conveying of the circuit board is ensured, and the stability and detection accuracy of line scanning and photographing are improved.

[0044] As Fig. 2As shown, in another embodiment, the utility model also provides a circuit board detection equipment, including optical detection mechanism and conveying mechanism of above-mentioned embodiment, optical detection mechanism is used for detecting circuit board on conveying mechanism.In this embodiment, optical detection mechanism includes camera 7, camera 7 is preferably arranged above support plate 41, when the circuit board on conveying assembly 2 (conveying belt 21) passes above support plate 41, camera 7 can shoot circuit board.In this embodiment, camera 7 is provided with multiple, by arranging multiple camera 7 reasonably, can adapt to the detection demand of different size and type of circuit board.For example, for larger circuit board, multiple camera 7 can be used to splice and shoot, to obtain complete image.Multiple camera 7 works cooperatively, and each camera 7 is responsible for shooting a part of circuit board, so that circuit board does not need to stop and wait for a single camera 7 to complete shooting for a long time during conveying, so that the running speed of conveying belt 21 can be accelerated, the detection beat is shortened, and production efficiency is improved.

[0045] The above-described embodiments are only used to illustrate the technical solutions of the utility model, rather than limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model, and should be included in the protection scope of the utility model.

Claims

1. A delivery mechanism characterized by, The conveying mechanism comprises a power assembly, a conveying assembly and a rolling support assembly, the power assembly is connected with the conveying assembly, the power assembly is used for driving the conveying assembly to move to drive the circuit board on the conveying assembly to move, and the rolling support assembly is connected with the conveying assembly and is used for supporting the conveying assembly.

2. The delivery mechanism of claim 1, wherein, The rolling support assembly comprises a support roller, the support roller is connected with the conveying assembly, and the support roller can support the conveying assembly.

3. The delivery mechanism of claim 2, wherein, The number of the support rollers is multiple, and the multiple support rollers are arranged at intervals along the conveying direction of the conveying assembly.

4. The delivery mechanism of claim 1, wherein, The rolling support assembly comprises multiple support rollers, and the multiple support rollers are coaxially arranged along a direction intersecting the conveying direction of the conveying assembly.

5. The delivery mechanism of claim 1, wherein, The conveying mechanism further comprises a fixed support assembly, the fixed support assembly is connected with the conveying assembly, and the fixed support assembly is arranged at intervals with the rolling support assembly in the conveying direction of the conveying assembly.

6. The delivery mechanism of claim 5, wherein, The fixed support assembly comprises at least one support plate, and the support plate is arranged at intervals with the rolling support assembly in the conveying direction of the conveying assembly.

7. The delivery mechanism of claim 1, wherein, The power assembly comprises a driving roller and a driven roller, the conveying assembly comprises a conveying belt, the driving roller and the driven roller are arranged at intervals along the conveying direction of the conveying belt, and the conveying belt is arranged around the driving roller and the driven roller.

8. The delivery mechanism of claim 7, wherein, The power assembly further comprises a driving member, an output end of the driving member is connected with the driving roller, and the driving member is used for driving the driving roller to rotate around a first axis to drive the conveying assembly to convey the circuit board along the conveying direction of the conveying assembly.

9. The delivery mechanism of claim 8, wherein, The driving member comprises a driving motor and a speed reducer, an input end of the speed reducer is coaxially connected with an output end of the driving motor, and an output end of the speed reducer is coaxially connected with the driving roller.

10. The delivery mechanism of claim 7, wherein, The conveying mechanism further comprises a tensioning assembly, the tensioning assembly is arranged between the driving roller and the driven roller in the conveying direction of the conveying assembly, and the tensioning assembly is used for tensioning the conveying belt.

11. The delivery mechanism of claim 10, wherein, The tensioning assembly comprises a tensioning roller, the tensioning roller is connected with the conveying assembly, and the tensioning roller can tension the conveying assembly.

12. The delivery mechanism of claim 11, wherein, The number of the tensioning rollers is multiple, and the multiple tensioning rollers are arranged at intervals along the conveying direction of the conveying assembly.

13. The delivery mechanism of claim 12, wherein, The outer circumferential surface of part of the tensioning rollers among the multiple tensioning rollers abuts against the inner side surface of the conveying belt, and the outer circumferential surface of the other part of the tensioning rollers abuts against the outer side surface of the conveying belt.

14. A circuit board inspection apparatus characterized by comprising: The conveying mechanism comprises an optical detection mechanism and the conveying mechanism in any one of claims 1 to 13, and the optical detection mechanism is used for detecting the circuit board on the conveying mechanism.

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