Concave-convex matching jig and concave-convex matching patch process

Abstract

The present invention relates to a concave-convex matching fixture and a concave-convex matching chip mounting process, which includes two fixture bodies with opposite front and back positions and connected to each other. One of the fixture bodies has a connecting convex portion at its connecting end, and the other fixture body has a connecting concave portion at its connecting end for concave-convex matching with the connecting convex portion. The chip mounting process is as follows: (1) Design two fixture bodies according to the structure of the double-sided PCB board; (2) Print solder paste on the front sides of the two fixture bodies; (3) Print solder paste on the back sides of the two fixture bodies; (4) Connect the two fixture bodies by concave-convex matching of the connecting concave portion and the connecting convex portion, with the front and back positions of the two fixture bodies being opposite; (5) Place the two fixture bodies that are concave-convex matched together into the track for simultaneous chip mounting. The design of the present invention is reasonable, which can achieve simultaneous chip mounting on the front and back sides of the fixture, and there is no need to stop the machine to replace the tooling fixture, effectively improving the equipment utilization rate, enhancing the production efficiency, and reducing the man-hour loss of labor and equipment.

Description

Technical Field:

[0002] The present invention relates to a concave-convex matching jig and a concave-convex matching patch process. Background Art:

[0004] The existing patch process for double-sided PCB boards can only meet single-sided patching at a time. When the double-sided PCB board is flipped to the other side for patching, it is necessary to first stop the patching equipment and change the tooling fixture on the patching equipment. Due to the need to stop the patching equipment and change the tooling fixture, this not only greatly reduces the patching efficiency and the operating rate of the equipment, but also has low production efficiency and large manual working hour losses. Summary of the Invention:

[0006] The present invention makes improvements in view of the above problems existing in the prior art, that is, the technical problem to be solved by the present invention is to provide a concave-convex matching jig and a concave-convex matching patch process, which not only improve the patching efficiency of double-sided PCB boards and the operating rate of equipment, but also reduce production costs.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is: a concave-convex matching jig, including two jig bodies with opposite front and back positions and connected, wherein a connecting convex portion is provided at the connecting end of one jig body, and a connecting concave portion for concave-convex matching with the connecting convex portion is provided at the connecting end of the other jig body.

[0008] Further, the connecting convex portion and the connecting concave portion are fixedly connected via a magnet.

[0009] Further, the connecting convex portion is provided at the end face of the connecting end of the jig body, and the connecting convex portion includes a front connecting convex portion flush with the front of the jig body and a back connecting convex portion flush with the back of the jig body; the connecting concave portion includes a front connecting concave portion provided on the front of the jig body and a back connecting concave portion provided on the back of the jig body, the front connecting concave portion is matched with the back connecting convex portion, and the back connecting concave portion is matched with the front connecting convex portion.

[0010] Further, at least one first magnet is embedded in the back of the front connecting convex portion and the front of the back connecting convex portion; at least one second magnet for adsorbing with at least one first magnet is embedded in the back connecting concave portion and the front connecting concave portion.

[0011] Further, there are two front connecting convex portions, and the two front connecting convex portions are symmetrically distributed up and down; there is one back connecting convex portion and it is arranged between the two front connecting convex portions; there are also two back connecting concave portions and they correspond to the positions of the two front connecting convex portions; there is one front connecting concave portion and it corresponds to the position of the back connecting convex portion.

[0012] Further, both the connecting convex portion and the connecting concave portion are rectangular.

[0013] Another technical solution adopted by the present invention is: a concave-convex matching patch process, which comprises the following steps:

[0014] Step S1: Design two fixture bodies according to the structure of the double-sided PCB board, and install the double-sided PCB board on both fixture bodies;

[0015] Step S2: Print solder paste on the front sides of the two fixture bodies respectively;

[0016] Step S3: Print solder paste on the back sides of the two fixture bodies respectively;

[0017] Step S4: Place the two fixture bodies horizontally side by side, with the front and back positions of the two fixture bodies opposite. Then, match the front connecting concave part with the back connecting convex part in a concave-convex manner, and match the back connecting concave part with the front connecting convex part in a concave-convex manner. At the concave-convex matching part, the first magnet and the second magnet attract each other to form a whole of the two fixture bodies;

[0018] Step S5: Place the two fixture bodies that are concave-convex matched together at the input end of the conveying track and convey them. When the two fixture bodies are conveyed to the patch station, the front side of one fixture body and the back side of the other fixture body are patched simultaneously;

[0019] Step S6: At the output end of the conveying track, turn the whole formed by the two fixture bodies by 180°, keep the distribution positions of the front and back sides of the two fixture bodies in the conveying track the same as those in Step S5. Then, the conveying track conveys the two fixture bodies in the reverse direction. When the two fixture bodies are conveyed in the reverse direction to the patch station, the back side of one fixture body and the front side of the other fixture body are patched simultaneously.

[0020] Compared with the prior art, the present invention has the following effects: The present invention is reasonably designed, can realize simultaneous patching on the front and back sides of the fixture, effectively improves the patching efficiency, and does not require stopping the machine to replace the tooling fixture when patching on the front and back sides, effectively improves the utilization rate of the equipment, improves the production efficiency, and reduces the man-hour loss of manpower and equipment. Description of the drawings:

[0022] Figure 1 is the front view structural schematic diagram of the embodiment of the present invention;

[0023] Figure 2 is Figure 1 the state schematic diagram when the two fixture bodies in

[0024] Figure 3 is the rear view structural schematic diagram of the embodiment of the present invention;

[0025] Figure 4 is Figure 3Schematic diagram of the state when the two jig bodies are connected

[0026] Figure 5 is Figure 2 Schematic diagram of the A-A cross-section in

[0027] Figure 6 Schematic diagram of the side cross-sectional structure of the first jig body in the embodiment of the present invention

[0028] Figure 7 Schematic diagram of the side cross-sectional structure of the second bracket body in the embodiment of the present invention

[0029] In the figure:

[0030] 1 - Jig body; 101 - First jig body; 102 - Second jig body; 2 - Front; 3 - Back; 4 - Front connection convex part; 5 - Back connection convex part; 6 - Front connection concave part; 7 - Back connection concave part; 8 - First magnet; 9 - Second magnet; 10 - First mounting hole; 11 - Second mounting hole Specific embodiments:

[0032] The present invention will be further described in detail below with reference to the drawings and specific embodiments

[0033] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention

[0034] As Figures 1 to 7 shown, a concave-convex matching jig of the present invention includes two jig bodies 1 with opposite front 2 and back 3 positions and connected to each other. The two jig bodies 1 are respectively installed with double-sided PCB boards and are horizontally arranged side by side. One end of the connection of one jig body 1 is provided with a connection convex part, and the connection end of the other jig body 1 is provided with a connection concave part for concave-convex matching with the connection convex part; in order to improve the connection firmness between the connection convex part and the connection concave part, the connection convex part and the connection concave part are connected and fixed via a magnet

[0035] In this embodiment, the two fixture bodies 1 include a first fixture body 101 and a second fixture body 102 that are horizontally arranged side by side. When the first fixture body 101 is connected to the second fixture body 102, the front surface 2 of the first fixture body 101 and the back surface 3 of the second fixture body 102 are on the same side. The connecting convex portion is provided on the end surface of the connecting end of the first fixture body 101 (that is, the end surface of the first fixture body 101 close to the second fixture body 102). The connecting convex portion includes a front connecting convex portion 4 flush with the front surface of the first fixture body 101 and a back connecting convex portion 5 flush with the back surface of the first fixture body 101; the connecting concave portion includes a front connecting concave portion 6 provided on the front surface of the second fixture body 102 and a back connecting concave portion 7 provided on the back surface of the second fixture body 102. The front connecting concave portion 6 is matched with the back connecting convex portion 5, and the back connecting concave portion 7 is matched with the front connecting convex portion 4.

[0036] Preferably, in the first fixture body 101, the thickness of the front connecting convex portion 4 is equal to that of the back connecting convex portion 5, and the sum of their thicknesses is the same as the thickness of the first fixture body 101; similarly, in the second fixture body 102, the depth of the front connecting concave portion 6 is equal to that of the back connecting concave portion 7, and the sum of their depths is the same as the thickness of the second fixture body 102.

[0037] In this embodiment, two first magnets 8 are embedded in the back surface of the front connecting convex portion 4 and the front surface of the back connecting convex portion 5; two second magnets 9 for adsorbing with the two first magnets 8 are embedded in the back connecting concave portion 7 and the front connecting concave portion 6. On the basis of the concave-convex fit between the connecting convex portion and the connecting concave portion, the adsorption of the two first magnets and the two second magnets is combined, so that the two fixture bodies can be accurately connected and matched. It should be noted that two first mounting holes 10 for embedding the two first magnets 8 are provided on the back surface of the front connecting convex portion 4 and the front surface of the back connecting convex portion 5. The first magnets are completely embedded in the first mounting holes to avoid affecting the concave-convex fit between the connecting convex portion and the connecting concave portion; similarly, two second mounting holes 11 for embedding the two second magnets 9 are provided in the back connecting concave portion 7 and the front connecting concave portion 6. The second magnets are completely embedded in the second mounting holes to avoid affecting the concave-convex fit between the connecting convex portion and the connecting concave portion.

[0038] Preferably, there are two front connecting convex portions 4 on the first fixture body 101, and the two front connecting convex portions 4 are symmetrically distributed up and down; there is one back connecting convex portion 5 on the first fixture body 101 and it is arranged between the two front connecting convex portions 4; there are also two back connecting concave portions 7 on the second fixture body 102 and they correspond to the positions of the two front connecting convex portions 4; there is one front connecting concave portion 6 on the second fixture body 102 and it corresponds to the position of the back connecting convex portion 5.

[0039] In this embodiment, both the connecting convex part and the connecting concave part are rectangular in shape.

[0040] It should be noted that the double-sided PCB board can include a battery board, a rigid-flex board, a rigid-flex reinforcement board, etc.; the installation structure between the double-sided PCB board and the jig body is a prior art, and no more details will be described here. Similarly, the jig body is also a mature product in the prior art for installing the double-sided PCB board, and its structure mainly includes a base, a magnetic tray, and magnetic steel sheets. The magnetic tray is arranged on the base, the double-sided PCB board is arranged on the magnetic tray, and magnetic steel sheets are arranged on both the front and back of the magnetic tray for fixing the double-sided PCB board, and no more details will be described here.

[0041] In this embodiment, the concave-convex matching chip mounting process includes the following steps:

[0042] Step S1: Design the first jig body 101 and the second jig body 102 according to the structure of the double-sided PCB board, and both the first jig body 101 and the second jig body 102 are installed with double-sided PCB boards;

[0043] Step S2: Print solder paste on the front sides of the first jig body 101 and the second jig body 102 respectively on a printing device;

[0044] Step S3: Print solder paste on the back sides of the first jig body 101 and the second jig body 102 respectively on another printing device;

[0045] Step S4: Horizontally place the first jig body 101 and the second jig body 102 with solder paste printed on both the front side 2 and the back side 3 side by side. The front and back positions of the first jig body 101 and the second jig body 102 are opposite, that is: the front side 2 of the first jig body 101 faces up, and the back side 3 of the second jig body 102 faces up and is flush with the front side of the first jig body 101; then, the front connecting concave part 6 on the second jig body 102 is in concave-convex fit with the back connecting convex part 5 on the first jig body 101, and the back connecting concave part 7 on the second jig body 102 is in concave-convex fit with the front connecting convex part 4 on the first jig body 101. At the concave-convex fit position, the first magnet 8 and the second magnet 9 are attracted to each other, so that the two jig bodies form an integral body, as Figure 2 shown;

[0046] Step S5: Place the two jig bodies 1 that are concave-convex fitted together at the input end of the conveying track and convey them. When the two jig bodies are conveyed to the chip mounting station, the front side 1 of the first jig body 101 and the back side 3 of the second jig body 102 are simultaneously chipped;

[0047] Step S6: After the two jig bodies 1 are pasted in step S5, they continue to be conveyed to the output end of the conveying track. At the output end of the conveying track, the whole formed by the two jig bodies 1 is turned over by 180°, and the distribution positions of the front and back of the two jig bodies in the conveying track are kept the same as those in step S5. As Figure 4 shown, that is: the back surface 3 of the first jig body 101 and the front surface 2 of the second jig body 102 face upward. At this time, the front surface 2 of the second jig body 102 is located at the position where the front surface 2 of the original first jig body 101 is located, while the back surface 3 of the first jig body 101 is at the position where the back surface 3 of the original second jig body 102 is located; then the conveying track conveys the two jig bodies in the reverse direction. When the two jig bodies are conveyed in the reverse direction to the pasting station, the back surface of the first jig body and the front surface of the second jig body are pasted simultaneously.

[0048] The advantages of the present invention are as follows: It can simultaneously realize pasting on the front and back surfaces, effectively improving the pasting efficiency; at the same time, after the two jig bodies are turned over by 180°, the distribution positions of the front and back surfaces in the conveying track remain unchanged. In this way, only by conveying the two jig bodies in the reverse direction to the pasting station can pasting on the front and back surfaces be carried out again, without stopping the equipment and replacing the tooling fixtures, greatly improving the equipment utilization rate and productivity, reducing the man-hour loss of manpower and equipment, and thus reducing the production cost.

[0049] If the present invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connected by bolts or screws), or can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integral structure (for example, manufactured by integral forming using casting technology) (except when it is obviously impossible to adopt the integral forming process).

[0050] In addition, the terms used to represent the positional relationship or shape in any of the technical solutions disclosed in the present invention, unless otherwise stated, include states or shapes that are approximate, similar, or close to it.

[0051] Any component provided by the present invention can either be assembled from multiple separate components or be a single component manufactured by integral forming technology.

[0052] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements on some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A concave-convex mating chip mounting process, characterized in that: The concave-convex matching fixture includes two fixture bodies with opposite front and back positions and connected to each other. One of the fixture bodies has a connecting convex portion at its connecting end, and the other fixture body has a connecting concave portion at its connecting end for concave-convex matching with the connecting convex portion; The connecting convex portion and the connecting concave portion are connected and fixed via a magnet; The connecting convex portion is provided on the end face of the connecting end of the fixture body. The connecting convex portion includes a front connecting convex portion flush with the front of the fixture body and a back connecting convex portion flush with the back of the fixture body; the connecting concave portion includes a front connecting concave portion provided on the front of the fixture body and a back connecting concave portion provided on the back of the fixture body. The front connecting concave portion cooperates with the back connecting convex portion, and the back connecting concave portion cooperates with the front connecting convex portion; At least one first magnet is embedded in the back of the front connecting convex portion and the front of the back connecting convex portion; at least one second magnet for adsorbing with at least one first magnet is embedded in the back connecting concave portion and the front connecting concave portion; There are two front connecting convex portions, and the two front connecting convex portions are symmetrically distributed up and down; there is one back connecting convex portion and it is arranged between the two front connecting convex portions; there are also two back connecting concave portions and their positions correspond to the positions of the two front connecting convex portions; there is one front connecting concave portion and its position corresponds to the position of the back connecting convex portion; The concave-convex matching chip mounting process includes the following steps: Step S1: Design two fixture bodies according to the structure of the double-sided PCB board, and install the double-sided PCB board on both fixture bodies; Step S2: Print solder paste on the front of the two fixture bodies respectively; Step S3: Print solder paste on the back of the two fixture bodies respectively; Step S4: Place the two fixture bodies horizontally side by side, with the front and back positions of the two fixture bodies opposite. Then, fit the front connecting concave portion with the back connecting convex portion in a concave-convex manner, and fit the back connecting concave portion with the front connecting convex portion in a concave-convex manner. At the concave-convex matching position, the first magnet and the second magnet are attracted to each other, so that the two fixture bodies form an integral body; Step S5: Place the two fixture bodies that are concave-convex matched together at the input end of the conveying track and convey them. When the two fixture bodies are conveyed to the chip mounting station, the front of one fixture body and the back of the other fixture body are simultaneously chip-mounted; Step S6: At the output end of the conveying track, turn the integral body formed by the two fixture bodies by 180°, and keep the distribution positions of the front and back of the two fixture bodies in the conveying track the same as those in Step S5. Then, the conveying track conveys the two fixture bodies in the reverse direction. When the two fixture bodies are conveyed in the reverse direction to the chip mounting station, the back of one fixture body and the front of the other fixture body are simultaneously chip-mounted.

2. The concave-convex mating chip mounting process according to claim 1, characterized in that: Both the connecting convex portion and the connecting concave portion are rectangular.

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