Jig special for SMT (Surface Mount Technology)

Abstract

The utility model discloses a special jig for SMT (Surface Mount Technology), relates to the field of PCB (Printed Circuit Board) processing, solves the problem that an existing device is difficult to efficiently limit and dissipate heat of a PCB according to requirements, and adopts the following scheme that the special jig for SMT comprises a jig seat which is provided with a board groove for placing the PCB; the jig base is a hollow rectangular base, a side groove located on the outer side of the plate groove is formed in the side portion of the jig base, a side table located on the outer side of the side groove is fixedly installed on the side wall of the jig base, and an edge pressing assembly is arranged on the top side of the side table. A platen with a PCB placed on the top side is arranged in the jig base, the platen is filled with an air groove, and two heat dissipation assemblies located on the bottom side of the platen are fixedly installed on the inner side of the jig base. According to the SMT special jig, through the arrangement of the edge pressing assemblies on the two sides of the jig seat, the pressing strips in the edge pressing assemblies can be deformed and pressed on the side edges of the PCB through the arrangement of the inward sliding edge pressing assemblies, convenient pressing is achieved, and the pressing rapidness is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board processing, in particular to a special SMT fixture. Background Art

[0002] SMT patch refers to the abbreviation of a series of process flows based on PCB, PCB is printed circuit board; SMT is surface mount technology, which is the most popular technology and process in the electronic assembly industry.

[0003] After searching, the application with patent number CN202320247430.8 discloses an SMT special jig, including an SMT jig body, a placement slot provided inside the SMT jig body, a positioning column symmetrically fixedly connected to one side of the placement slot, and a pressure edge assembly provided on the SMT jig body, wherein the pressure edge assembly includes multiple pressure plates, and the bottoms of multiple pressure plates are fixedly connected to rubber pads, and multiple mounting slots are provided on the top of the SMT jig body, and multiple mounting slots are respectively arranged on the left and right sides and the rear side of the placement slot, and multiple threaded holes are provided inside the multiple mounting slots, and adjustment bolts are movably connected at both ends of the multiple pressure plates, and heat dissipation slots are symmetrically provided on the inner side of the placement slot. This solution designs a pressure edge assembly, and when the SMT special jig is used to process the PCB board, the pressure plate presses the edge of the PCB board to prevent the edge of the PCB board from warping when the PCB board is heated during processing, thereby protecting the PCB board and improving the yield rate of PCB board processing;

[0004] The above application document achieves efficient processing by setting up a clamping assembly and a heat dissipation assembly, but the clamping assembly requires manual twisting of multiple sets of bolts to tighten it, which is cumbersome to operate and the PCB board is easily damaged by the pressing force. At the same time, the heat dissipation assembly dissipates heat from the bottom side, but the ventilation effect is limited and the heat dissipation effect is also poor.

[0005] Therefore, we proposed a special SMT fixture. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the utility model provides a special SMT fixture to solve the problem that the existing devices are difficult to effectively limit the position and dissipate heat of the PCB board according to requirements.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a special SMT jig, comprising a jig seat, wherein the jig seat is provided with a board slot for placing a PCB board;

[0008] The fixture seat is a hollow rectangular seat, and a side groove located outside the plate groove is opened on the side of the fixture seat. A side platform located outside the side groove is fixedly installed on the side wall of the fixture seat, and a pressure edge assembly is provided on the top side of the side platform;

[0009] The edge pressing assembly includes a push plate and a pressing strip connected to each other;

[0010] The fixture seat is provided with a table on the top side of which the PCB board is placed. The table is filled with air troughs. Two sets of heat dissipation components located on the bottom side of the table are fixedly installed on the inner side of the fixture seat.

[0011] The main body of the heat dissipation component is a through plate, a top surface of which is provided with a fan slot, in which a motor seat and a fan sheet mounted on an output end thereof are fixedly installed.

[0012] Preferably, a pressing groove is opened on the side of the fixture seat and is located on the top side of the side platform, and a pressing assembly is clamped in the pressing groove;

[0013] Among them, the setting of the pressing groove can clamp the edge pressing component to facilitate driving it downward, so that the pressing strip on its outer edge is pressed onto the edge top side of the PCB board to ensure the pressing effect.

[0014] Preferably, the push plate is a hard strip, the pressure strip is an elastic plastic strip, and the bottom side of the outer edge of the pressure strip is a rounded end;

[0015] The setting of the holding strip facilitates press-fitting the PCB board on the bottom side by utilizing its own bending elastic force, while the setting of the rounded end facilitates the holding strip to slide thereon, thereby ensuring the press-fitting effect.

[0016] Preferably, two groups of hollow areas are provided on the bottom side of the fixture seat, and heat dissipation components are provided inside the two groups of hollow areas;

[0017] The hollow portion is provided to ensure ventilation of the fixture seat, thereby ensuring ventilation of the fixture body.

[0018] Preferably, the through plate in the heat dissipation assembly is an oblique plate, and a through air hole is opened in the through plate;

[0019] Among them, the setting of the through plate can cooperate with the motor seat and fan blades thereon to convey the air obliquely, thereby ensuring the heat dissipation effect of the PCB board limited on the fixture seat.

[0020] Preferably, the top surface of the side platform is an inclined surface from outside to inside, and the height of the inner end of the inclined surface is the same as the thickness of the PCB board.

[0021] The utility model provides a special SMT fixture with the following beneficial effects:

[0022] This SMT-specific jig, through the arrangement of the edge pressing components on both sides of the jig seat, can deform the pressure strips therein and press-fit them on the side of the PCB board by sliding the edge pressing components inward, thereby achieving convenient press-fitting and ensuring the speed of press-fitting. The arrangement of the heat dissipation component on the inside of the jig seat can utilize the motor seat therein to drive the fan blades to rotate, and the air body on the bottom side is transported obliquely upward, thereby efficiently cooling the bottom surface of the PCB board, solving the problem that existing devices are difficult to effectively limit and dissipate heat for the PCB board according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the utility model;

[0024] Figure 2 This is a structural diagram of the fixture seat of the utility model;

[0025] Figure 3 This is a structural diagram of the edge pressing assembly of the utility model;

[0026] Figure 4 This is a schematic structural diagram of the heat dissipation component of the present invention.

[0027] In the figure: 1. Fixture seat; 11. Plate slot; 12. Side table; 13. Side slot; 14. Pressing slot; 15. Table; 2. Heat dissipation assembly; 21. Through plate; 22. Fan slot; 23. Motor seat; 24. Fan blade; 3. Edge pressing assembly; 31. Push plate; 32. Pressing strip. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-4, the embodiment of the utility model provides a technical solution: a special SMT jig, including a jig seat 1, which is provided with a board slot 11 for placing a PCB board; the jig seat 1 is a hollow rectangular seat, and the side of the jig seat 1 is provided with a side slot 13 located outside the board slot 11, and a side platform 12 located outside the side slot 13 is fixedly installed on the side wall of the jig seat 1, and a pressure edge component 3 is provided on the top side of the side platform 12; the pressure edge component 3 includes a push plate 31 and a pressure strip 32 connected thereto; a table 15 for placing a PCB board on the top side is provided in the jig seat 1, and the table 15 is filled with air slots, and two groups of heat dissipation components 2 located on the bottom side of the table 15 are fixedly installed on the inner side of the jig seat 1; the main body of the heat dissipation component 2 is a through plate 21, and a fan slot 22 is provided on the top surface of the through plate 21, and a motor seat 23 and a fan blade 24 mounted on its output end are fixedly installed in the fan slot 22;

[0030] Among them, the SMT special jig, through the setting of the edge pressing components 3 on both sides of the jig seat 1, can deform the pressure strips 32 therein and press them onto the side of the PCB board by sliding the edge pressing components 3 inward, thereby achieving convenient press-fitting and ensuring the speed of press-fitting. The setting of the heat dissipation component 2 on the inner side of the jig seat 1 can utilize the motor seat 23 therein to drive the fan 24 to rotate, and transport the wind on the bottom side obliquely upward, so as to efficiently cool the bottom surface of the PCB board, thereby solving the problem that the existing device is difficult to effectively limit and dissipate heat for the PCB board according to needs.

[0031] Example 2:

[0032] The side of the jig seat 1 is provided with a pressing groove 14 located on the top side of the side platform 12, and the edge pressing component 3 is clamped in the pressing groove 14; wherein, the setting of the pressing groove 14 can clamp the edge pressing component 3 so as to drive it downward so that the pressing strip 32 on its outer edge is pressed onto the edge top side of the PCB board to ensure the pressing effect.

[0033] The push plate 31 is a hard strip, the pressure strip 32 is an elastic plastic strip, and the bottom side of the outer edge of the pressure strip 32 is a rounded end; wherein, the setting of the pressure strip 32 facilitates the use of its own bending elastic force to press the PCB board on the bottom side, and the setting of the rounded end facilitates the pressure strip 32 to slide thereon, thereby ensuring the press-fitting effect.

[0034] Two sets of hollow areas are provided on the bottom side of the fixture seat 1, and heat dissipation components 2 are provided inside the two sets of hollow areas. The hollow areas are provided to ensure ventilation of the fixture seat 1, thereby ensuring ventilation of the fixture body.

[0035] The through plate 21 in the heat dissipation assembly 2 is an oblique plate, and a through air hole is opened in the through plate 21; wherein, the setting of the through plate 21 can cooperate with the motor seat 23 and the fan blades 24 thereon to convey the air obliquely, thereby ensuring the heat dissipation effect for the PCB board limited on the fixture seat 1.

[0036] The top surface of the side platform 12 is an inclined surface from outside to inside, and the height of the inner end of the inclined surface is the same as the thickness of the PCB board.

[0037] The working principle and usage process of the present invention are as follows: when the device is needed to press-fit the PCB board, it is placed on the top surface of the table 15, and then the edge pressing component 3 is pushed inward so that the outer pressure strip 32 is tightly attached to the side of the PCB board, and the pressing effect is ensured by the bending deformation of the pressure strip 32. At the same time, the motor seat 23 in the heat dissipation component 2 is opened to drive the fan blade 24 to rotate on the bottom side of the PCB board, delivering oblique air to it, thereby achieving efficient cooling.

[0038] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0039] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A special SMT jig, comprising a jig seat (1), wherein the jig seat (1) is provided with a board slot (11) for placing a PCB board; Its characteristics are: The fixture seat (1) is a hollow rectangular seat, and a side groove (13) located outside the plate groove (11) is provided on the side of the fixture seat (1). A side platform (12) located outside the side groove (13) is fixedly installed on the side wall of the fixture seat (1), and a side pressing assembly (3) is provided on the top side of the side platform (12); The edge pressing assembly (3) comprises a push plate (31) and a pressure strip (32) connected to each other; The fixture seat (1) is provided with a table (15) on the top side of which a PCB board is placed, the table (15) is filled with air troughs, and two groups of heat dissipation components (2) located on the bottom side of the table (15) are fixedly installed on the inner side of the fixture seat (1); The main body of the heat dissipation assembly (2) is a through plate (21), a fan slot (22) is provided on the top surface of the through plate (21), a motor seat (23) and a fan blade (24) mounted on the output end thereof are fixedly installed in the fan slot (22).

2. The SMT special fixture according to claim 1, characterized in that: The side of the fixture seat (1) is provided with a pressing groove (14) located on the top side of the side platform (12), and the edge pressing component (3) is clamped in the pressing groove (14).

3. The SMT special jig according to claim 1, characterized in that: The push plate (31) is a hard strip, the pressure strip (32) is an elastic plastic strip, and the bottom side of the outer edge of the pressure strip (32) is a rounded end.

4. The SMT special fixture according to claim 1, characterized in that: Two groups of hollowed-out areas are provided on the bottom side of the fixture seat (1), and heat dissipation components (2) are provided inside the two groups of hollowed-out areas.

5. The SMT special jig according to claim 4, characterized in that: The through plate (21) in the heat dissipation assembly (2) is an oblique plate, and a through air hole is provided in the through plate (21).

6. The SMT special jig according to claim 1, characterized in that: The top surface of the side platform (12) is an inclined surface from outside to inside, and the height of the inner end of the inclined surface is the same as the thickness of the PCB board.

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