Cover plate, braid type feeding assembly adopting cover plate and SMT (Surface Mount Technology) assembly system

Abstract

The utility model discloses a cover plate, a braid type feeding assembly adopting the cover plate and an SMT assembly system. The cover plate comprises a cover plate seat body and a hollow containing cavity which is formed in the cover plate seat body and penetrates through the top end and the lower end of the cover plate seat body. Connecting parts which are turned outwards are arranged on the outer side walls of at least one pair of cover plate seat bodies and located on the edges of the bottom ends of the cover plate seat bodies; and an annular positioning part suitable for being adsorbed is arranged at the top end of the cover plate seat body and is positioned on the circumferential side of the hollow accommodating cavity.

Description

TECHNICAL FIELD

[0001] The utility model relates to chip processing technical field especially relates to a cover plate and adopt the braided belt type feeding assembly and SMT assembly system of this cover plate. BACKGROUND

[0002] Electromagnetic compatibility (EMC, Electromagnetic Compatibility) refers to the ability of electronic devices to work normally in an electromagnetic interference environment and the electromagnetic disturbance intensity when working. Electromagnetic interference and electromagnetic disturbance exist everywhere in actual life and working environment, especially in the fields of communication, industrial internet of things, automobile electronics and the like with complex electromagnetic environment and high radiation intensity, so the electromagnetic compatibility test of electronic devices is more important. In EMC test application, the use of cover plates can avoid the influence of signals on electronic devices.

[0003] For this, for example, the announcement number CN210042727U discloses a kind of PCB cover plate capable of reducing electromagnetic interference, it includes the fixed casing with accommodating groove and the PCB cover plate being set on fixed casing, the left and right ends of the groove bottom of accommodating groove are respectively fixed and vertically set with the one end of spring, the other end of spring is fixed in the lower surface of PCB fixed plate, PCB fixed plate holds PCB board between the upper surface of PCB fixed plate and the lower surface of PCB cover plate, vertically through setting circular hole part on PCB cover plate, the front and rear ends of the left part of PCB cover plate are respectively provided with the through slot with preset length. Based on this PCB cover plate, although the fixation for PCB board can be realized, but its overall and the fixation process operation of PCB board are cumbersome, not conducive to the processing of SMT patch automation (SMT patch refers to the series of technological process on the basis of PCB and is simply referred to as SMT, which is the most popular technology and process in electronic assembly industry, is that no pin or short lead surface mounted device is installed on the surface of printed circuit board or other substrate, and is welded and assembled by reflow soldering or immersion soldering method. The processing efficiency of the whole is relatively low.

[0004] Therefore, from the angle of improving processing efficiency, the structure of cover plate needs to be further improved. UTILITY MODEL CONTENT

[0005] The first object of the utility model is to provide a kind of cover plate, to solve the technical problem of improving its assembly efficiency with PCB board.

[0006] The second object of the utility model is to provide a kind of braided belt type feeding assembly, to solve the technical problem of improving the systematization of cover plate feeding.

[0007] The third object of the present invention is to provide an SMT assembly system to solve the technical problem of improving assembly efficiency.

[0008] The cover plate of the present invention is realized as follows:

[0009] A cover plate comprises: a cover plate base and a hollow receiving cavity formed in the cover plate base and passing through the top and bottom ends of the cover plate base;

[0010] At least one pair of outer side walls of the cover base body and an outward-turned connecting portion is provided at the bottom edge of the cover base body; and

[0011] A ring-shaped positioning portion suitable for being adsorbed is provided at the top end of the cover base body and located on the circumferential side of the hollow accommodating cavity.

[0012] In an optional implementation of the present invention, the cover base is a rectangular parallelepiped structure, and the cross-section of the hollow accommodating cavity is a rectangle; and

[0013] The cover base includes four side plates for forming a rectangular parallelepiped structure, and the positioning portion includes an annular top plate connected to the top ends of the four side plates.

[0014] In an optional implementation of the present invention, the heights of the four side panels along the depth direction of the hollow accommodating cavity are consistent.

[0015] In an optional implementation of the present invention, at least one of the side panels is provided with a ventilation hole.

[0016] In an optional implementation of the present invention, one pair of oppositely arranged side panels among the four side panels is integrally provided with the connecting portion on the outer side wall facing away from the hollow accommodating cavity.

[0017] In an optional implementation of the present invention, each of the side plates and the annular top plate is made of stainless steel.

[0018] The braided feeding assembly of the present invention is realized as follows:

[0019] A braided feeding assembly comprises: a carrier belt, a plurality of troughs integrally formed on the carrier belt and spaced along its length, each trough protruding toward one side and having a hollow receiving cavity, and a cover plate adapted to be built into the trough one by one;

[0020] The slot openings of the plurality of troughs are located on the same end surface; and

[0021] When the cover plate is built into the material trough, the positioning portion of the cover plate faces the slot opening of the material trough.

[0022] In an optional implementation of the present invention, the side walls of the trough are made of transparent material.

[0023] In an optional implementation of the present invention, a plurality of positioning holes are further provided on the carrier belt along the arrangement direction of the plurality of material troughs.

[0024] The SMT assembly system of the present utility model is implemented as follows:

[0025] An SMT assembly system comprises: the braided feeding assembly, a suction nozzle for absorbing the cover plate in the material trough, and a PCB board suitable for being welded to the connecting portion on the cover plate base.

[0026] By adopting the above-mentioned technical solution, the present invention has the following beneficial effects: The cover plate, the braided loading assembly, and the SMT assembly system using the same can be used to achieve soldering and fixing to the PCB board through the connection portion provided on the cover plate base, thereby improving the convenience of the operation of fixing the cover plate and the PCB board to each other. The connection portion is outward-turned relative to the side wall of the cover plate base, facilitating visual inspection of the welding condition after completion of the welding with the PCB board, thereby improving the measurability of the welding results. Furthermore, the braided loading assembly can be used to place multiple cover plates in the material trough of the carrier belt, and combined with the suction nozzle, a series of automated loading can be achieved, thereby improving the efficiency of the SMT assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the cover plate of Example 1;

[0028] Figure 2 This is a structural diagram of the braided feeding assembly of Example 2;

[0029] Figure 3 Schematic diagram of the cooperation between the trough and the cover plate of the braided feeding assembly of Example 2;

[0030] Figure 4 Schematic diagram of the matching structure between the cover plate and PCB of the SMT assembly system of Example 3.

[0031] In the figure: side panel 1, connecting part 2, hollow accommodating cavity 3, ventilation hole 4, loading belt 5, material trough 6, positioning hole 7, suction nozzle 8, PCB board 9, solder pad 91, positioning part 10. DETAILED DESCRIPTION

[0032] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0033] Example 1:

[0034] See also Figure 1As shown, the present embodiment provides a cover plate, comprising: a cover plate base body and a hollow accommodating cavity 3 formed in the cover plate base body and penetrating the top end and the low end of the cover plate base body; wherein at least one pair of outer side walls of the cover plate base body and located at the bottom end edge of the cover plate base body are provided with outwardly turned connecting parts 2; and the top end of the cover plate base body and located at the circumferential side of the hollow accommodating cavity 3 is provided with a ring-shaped positioning part 10 suitable for being adsorbed.

[0035] The connecting part 2 is mainly used for subsequent welding cooperation with the PCB plate 9 in the SMT assembly system. The connecting part 2 is outwardly turned relative to the side wall of the cover plate base body, which facilitates visual inspection of the welding condition after the welding with the PCB plate 9 is completed, thereby improving the measurability of the welding result. The surface of the connecting part 2 is first plated with nickel and then plated with tin, and the tin plating process is adopted, thereby effectively ensuring the effectiveness of the welding of the cover plate with the PCB plate 9.

[0036] On the basis of the above structure, it should be noted that the hollow accommodating cavity 3 in the cover plate base body of the present embodiment extends to the top end of the cover plate base body, so that after the cover plate is connected to the PCB plate 9 by subsequent welding in the SMT assembly system, the specifications and models of the electronic components corresponding to the hollow accommodating cavity 3 inside can be inspected through the top end of the cover plate base body by using visual inspection equipment.

[0037] The positioning part 10 is used to facilitate the subsequent adsorption of the suction nozzle 8 to the corresponding position on the PCB plate 9 in the SMT assembly system, thereby improving the convenience of the welding process of the PCB plate 9 with the cover plate.

[0038] Next, an optional implementation case is described in combination with the drawings. The overall cover plate base body has a cuboid structure, the cross section of the hollow accommodating cavity 3 is rectangular, and the heights of the four side plates 1 along the depth direction of the hollow accommodating cavity 3 are consistent. The cover plate base body includes four side plates 1 used to combine to form a cuboid structure, and the positioning part 10 includes a ring-shaped top plate connected to the top ends of the four side plates 1. One pair of oppositely arranged side plates 1 among the four side plates 1 are integrally provided with a connecting part 2 on the outer side wall away from the hollow accommodating cavity 3. For a cover plate with a regular shape, on the one hand, it is convenient for the product to be relatively stacked and stored, thereby avoiding the deformation of the connecting part 2 caused by extrusion, which affects the subsequent welding with the PCB plate 9; on the other hand, it is convenient for processing and forming. In an optional implementation case, each side plate 1 and the ring-shaped top plate are made of stainless steel, thereby preventing the deformation of the cover plate during transportation and circulation, and effectively improving the shielding effect.

[0039] In addition, on the basis of the above structure, the present embodiment further provides a ventilation hole 4 on at least one side plate 1. The design of the ventilation hole 4 facilitates the heat dissipation of the components in the hollow accommodating cavity 3 of the cover plate after the cover plate is welded with the PCB plate 9. In an example described in combination with the drawings, one ventilation hole 4 is provided on each side plate 1.

[0040] In summary, for the cover plate of this embodiment, the connection portion 2 provided on the cover plate base can be used to achieve welding fixation with the PCB board 9, thereby improving the convenience of the mutual fixing operation of the cover plate and the PCB board 9.

[0041] Example 2:

[0042] See also Figure 2 and Figure 3 As shown, based on the cover plate of Example 1, this embodiment provides a braided feeding assembly, including: a carrier belt 5, a plurality of material troughs 6 with hollow receiving cavities protruding to one side and integrally formed on the carrier belt 5 and arranged at intervals along its length direction, and a cover plate of Example 1 suitable for being one-to-one built into the material trough 6; wherein the trough openings of the plurality of material troughs 6 are on the same end face; and when the cover plate is built into the material trough 6, the positioning portion 10 of the cover plate faces the trough opening of the material trough 6.

[0043] It should be noted that, in an optional embodiment, the sidewalls of the trough 6 are made of a transparent material. Considering the convenience of integrally processing the carrier belt 5, both the carrier belt 5 and the trough 6 are integrally formed from a transparent material. The transparent material used for the trough 6 facilitates visual inspection of the cover plate within the trough 6 during subsequent SMT assembly processing, preventing the cover plate from being missed due to processing errors.

[0044] In addition, a plurality of positioning holes 7 are provided on the carrier belt 5 along the arrangement direction of the plurality of material slots 6. The design of the positioning holes 7 facilitates the precise positioning of the carrier belt 5 in the subsequent SMT assembly system, thereby improving the reliability of the loading process.

[0045] In summary, for the braided loading assembly of this embodiment, placing multiple cover plates in the material slot 6 of the carrier belt 5 and then cooperating with the suction nozzle 8 can realize a series of automated loading, thereby improving the efficiency of the subsequent SMT assembly process.

[0046] Example 3:

[0047] See also Figure 4 As shown, based on the braided feeding component of Example 2, this embodiment provides an SMT assembly system, including: the braided feeding component of Example 2, a suction nozzle 8 for adsorbing the cover plate in the material trough 6, and a PCB board 9 suitable for being welded to the connecting part 2 on the cover plate base.

[0048] It should be noted that, in order to improve the reliability of the solder structure formed by the cover plate and the PCB 9, a solder pad 91 with an area of 2mm or more larger than the connecting part 2 of the cover plate is designed on the PCB 9, so that after soldering, the equipment can check the soldering condition through visual inspection, and the measurability is improved.

[0049] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above is only a specific embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

[0050] In the description of the utility model, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, structure and operation, so it cannot be understood as a limitation of the utility model.

[0051] In the utility model, unless otherwise specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0052] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the utility model product when it is usually placed, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, structure and operation, so it cannot be understood as a limitation of the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0053] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the parts must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0054] In the present application, unless otherwise expressly specified and limited, the first feature above or below the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature therebetween. Moreover, the first feature above, above and above the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature below, below and below the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

Claims

1. A cover plate, characterized in that: include: A cover base body and a hollow accommodating cavity formed in the cover base body and passing through the top end and the bottom end of the cover base body; in At least one pair of outer side walls of the cover base body and an outward-turned connecting portion is provided at the bottom edge of the cover base body; and A ring-shaped positioning portion suitable for being adsorbed is provided at the top end of the cover base body and located on the circumferential side of the hollow accommodating cavity.

2. The cover plate according to claim 1, wherein: The cover base is a rectangular parallelepiped structure, and the cross-section of the hollow accommodating cavity is a rectangle; and The cover base includes four side plates for forming a rectangular parallelepiped structure, and the positioning portion includes an annular top plate connected to the top ends of the four side plates.

3. The cover plate according to claim 2, wherein: The heights of the four side panels along the depth direction of the hollow accommodating cavity are consistent.

4. The cover plate according to claim 2 or 3, characterized in that: At least one of the side panels is provided with a ventilation hole.

5. The cover plate according to claim 2 or 3, characterized in that: One pair of oppositely arranged side plates among the four side plates is integrally provided with the connecting portion on the outer side wall facing away from the hollow accommodating cavity.

6. The cover plate according to claim 2 or 3, characterized in that: Each of the side plates and the annular top plate is made of stainless steel.

7. A braided feeding assembly, characterized in that: include: A carrier belt, a plurality of troughs integrally formed on the carrier belt and spaced apart along its length, each trough protruding toward one side and having a hollow receiving cavity, and a cover plate according to any one of claims 1 to 6 suitable for being built into the trough one by one; wherein The slot openings of the plurality of troughs are located on the same end surface; and When the cover plate is built into the material trough, the positioning portion of the cover plate faces the slot opening of the material trough.

8. The braided feeding assembly according to claim 7, characterized in that: The side walls of the trough are made of transparent material.

9. The braided feeding assembly according to claim 7 or 8, characterized in that: The carrier belt is also provided with a plurality of positioning holes along the arrangement direction of the plurality of material troughs.

10. An SMT assembly system, characterized in that: include: A braided feeding assembly as claimed in any one of claims 7 to 9, a suction nozzle for adsorbing the cover plate in the material trough, and a PCB board suitable for being welded to the connecting portion on the cover plate base.

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