An anti-deviating SMT production fixture

Abstract

The present invention discloses an anti-deviating jig for SMT production, comprising: a bottom shell and a top shell fixedly connected to the bottom shell by bolts, the surface of the top shell is provided with a limit plate for limiting the position of the PCB; and further comprising: a side plate, the side plate is integrally arranged on the end side of the top shell; wherein the limit plate is positionally adjusted on the surface of the top shell by an adjustment mechanism located inside the top shell, a second connection frame is installed on the left side of the top of the side plate, a first connection frame is installed on the right side of the top of the side plate, the outer side of the second connection frame is connected to a purification suction fan through a pipeline, the outer side of the first connection frame is connected to a hair dryer through a pipeline, and a through hole, the bottom of the through hole is connected to the internal hollow structure of the bottom shell. The anti-deviating jig for SMT production can stably place the PCB, can avoid deviation, can be connected for use, and is conducive to improving the yield rate of SMT production and improving the efficiency of SMT production.

Description

Technical Field

[0001] The present invention relates to the technical field of SMT patch technology, and more particularly to the technical field of SMT production jigs, in particular to an anti-deviating SMT production jig. Background Art

[0002] SMT is a new generation of assembly technology in electronic product manufacturing, which is characterized by the use of component surface mounting technology and reflow soldering technology. When performing SMT patching, SMT patch fixtures are required to limit the PCB to improve SMT production efficiency.

[0003] For example, the invention with the authorization announcement number CN 118201351 B discloses an SMT patch jig, which relates to the field of SMT patch technology, and includes a jig body and a protective shell arranged at the bottom of the jig body, wherein the jig body is symmetrically provided with strip openings, a fixing mechanism is arranged in the strip opening, a cooling mechanism is arranged at the bottom of the protective shell, and a driving mechanism is arranged at the bottom of the protective shell; the present invention uses the driving mechanism to first fix the SMT bare board and then cool the bare board, which is beneficial to SMT patch and improves the quality of SMT production; wherein, the use of the cooling mechanism facilitates the simultaneous water cooling and air cooling of the SMT patch jig, thereby facilitating the rapid cooling of the SMT patch jig, avoiding the deformation of the steel mesh or the drying of the solder paste on the steel mesh, and also avoiding the phenomenon of flying materials caused by insufficient viscosity of the solder paste, thereby further improving the efficiency of the SMT patch;

[0004] Another example is a patent with authorization announcement number CN 218071968 U that discloses a printing jig for SMT production, which relates to the field of printing technology and includes a pad, wherein a suction port is provided at the central end of the pad, and a printing layer is movably connected to the inner wall of the suction port, and a positioning piece is fixedly connected to the top of the pad, and a driving ring is fixedly connected to the outer edge of the positioning piece, and an adjusting rod is movably connected to the inner wall of the driving ring, and a positioning block is fixedly connected to the end of the adjusting rod, and a handle is fixedly connected to the head of the adjusting rod, and a spring is sleeved on the outer wall of the adjusting rod. The printing jig for SMT production adopts an assembled combination method, which can fix the pad on the printing jig, enhance the stability of the pad placed on the printing jig, avoid the pad offset during printing, ensure the printing effect, and enhance the printing quality;

[0005] However, combined with the current actual SMT production process, the current use of SMT production fixtures still has certain disadvantages, such as:

[0006] The inability to quickly position the PCB is not conducive to maintaining the stability of the PCB board, affecting the yield and efficiency of SMT patch printing;

[0007] It is not conducive to preventing deviation during the printing process, which affects the stability of SMT patch printing;

[0008] The jigs cannot be connected and used, which is not conducive to the continuous mass production of SMT patch printing and is not conducive to improving the efficiency of SMT production;

[0009] Therefore, we propose an anti-deviation SMT production fixture to solve the above-mentioned problems. Summary of the invention

[0010] The purpose of the present invention is to provide an anti-drift SMT production jig to solve the problem that the current SMT production jig proposed in the above background technology is not conducive to preventing PCB from drifting, cannot maintain production stability, cannot be used for connection, and affects the yield and efficiency of SMT patch production.

[0011] To achieve the above object, the present invention provides the following technical solution: an anti-deviating SMT production jig, comprising: a bottom shell and a top shell fixedly connected to the bottom shell with bolts, wherein a limiting plate for limiting the position of a PCB is provided on the surface of the top shell;

[0012] Also includes:

[0013] A side plate, wherein the side plate is integrally arranged on the end side of the top shell;

[0014] The position of the limit plate is adjusted on the surface of the top shell by an adjustment mechanism located inside the top shell, a second connection frame is installed on the left side of the top of the side plate, a first connection frame is installed on the right side of the top of the side plate, the outer side of the second connection frame is connected to a purification suction fan through a pipeline, and the outer side of the first connection frame is connected to a hair dryer through a pipeline;

[0015] A through hole, the bottom of which is connected to the internal hollow structure of the bottom shell, the top of which is sealed and engaged with the top shell, and the top surface of the top shell is provided with a hollow plate perpendicular to the through hole;

[0016] Wherein, the hair dryer and the purification suction fan are both installed in the internal hollow structure of the bottom shell.

[0017] Preferably, the limiting plate comprises:

[0018] A card plate, the card plate is symmetrically arranged above the first slide groove opened on the surface of the top shell, and the side cross-section structure of the card plate is an "L"-shaped structure;

[0019] An anti-skid pad, which is embedded and installed on the inner side of the card board;

[0020] The suction cup is arranged at the center of the bottom surface of the card board.

[0021] Preferably, the adjustment mechanism comprises:

[0022] A first connecting block, wherein the first connecting block is fixedly connected to the bottom surface of the limiting plate, and a first adjusting rod is connected to the inner side of the first connecting block;

[0023] A second connecting block, wherein the second connecting block is connected to the middle position of the first adjusting rod, and the bottom of the second connecting block forms a left-right sliding structure on the top surface of the bottom shell;

[0024] A second adjusting rod, wherein the second connecting block is internally connected with the second adjusting rod, and the top end of the second adjusting rod is rotatably connected to the side of the bottom shell;

[0025] Among them, the threaded screwing directions of the two ends of the first adjusting rod and the second adjusting rod are set in opposite directions, the ends of the first adjusting rod and the second adjusting rod are both provided with polygonal grooves, the end of the first adjusting rod is slidably connected to the inner side of the second sliding groove opened on the side of the top shell, and the first adjusting rod forms a rotating structure on the inner side of the second connecting block.

[0026] Preferably, the bottom of the through hole is a funnel-shaped structure, and a boss integrated with the bottom shell is provided on the top side of the through hole, and the boss is correspondingly sealed and engaged with the bottom surface of the top shell.

[0027] Preferably, the first connecting frame and the second connecting frame are arranged corresponding to each other on the left and right, and the inner sides of the first connecting frame and the second connecting frame are connected to the ventilation holes opened on the top side of the side plate, and the ventilation holes are opened on the top side of the side plate at equal intervals.

[0028] Preferably, the left and right sides and the front and back sides of the bottom of the bottom shell are integrally protruded with bumps, the bottom of the bottom shell is provided with a bottom plate, the end of the bottom plate is integrally connected with a buckle, and the bottom plate is connected with the bumps by corresponding snap-fitting between the buckle.

[0029] Preferably, fixing holes are symmetrically provided inside the bottom plate, a bottom column is protruding from the center of the bottom surface of the bottom plate, and a support rod is rotatably connected to the side of the bottom plate, and the rotation angle range of the support rod is 0-90°.

[0030] Preferably, a connection hole is provided at the center of the protrusion, and the bottom shell units are connected to the middle block through the protrusion for use in combination.

[0031] Preferably, a connecting rod is symmetrically threadedly connected to the middle of the intermediate block, a convex ring is protruding from the end of the connecting rod, and the connecting rod is correspondingly engaged with the connecting hole through the convex ring.

[0032] Compared with the prior art, the present invention has at least the following beneficial effects: the anti-deviation SMT production jig can stably place the PCB, can avoid deviation, can be connected for use, and is conducive to improving the yield rate of SMT production and improving the efficiency of SMT production;

[0033] 1. In this solution, a limit plate, a first adjustment rod and a second adjustment rod are provided. The first adjustment rod is connected to the inside of the first connecting block below the limit plate, and the limit plate can be adjusted forward and backward through the first adjustment rod. The second adjustment rod is connected to the inside of the second connecting block, and the second connecting block can be adjusted left and right, so as to adjust the position of the limit plate and place different PCBs.

[0034] 2. This solution is provided with a card board, an anti-skid pad and an anti-skid pad. The top of the card board is tilted inwards, which is convenient for the quick placement of the PCB board. At the same time, the anti-skid pad on the inside of the card board is convenient for anti-skid and prevents the PCB board from shifting. At the same time, a suction cup is provided on the bottom of the card board to adsorb the PCB and further maintain stability;

[0035] 3. In this solution, a through hole and a hollow plate are provided, the hollow plate covers the through hole, the through hole can be connected to the outside through the hollow plate, and the PCB on the surface of the hollow plate can be ventilated and cooled through the through hole;

[0036] Furthermore, a hair dryer, a first connecting frame, a purification suction fan and a second connecting frame are provided. The hair dryer is connected to the first connecting frame to blow air, and the purification suction fan is connected to the second connecting frame to suck air, so that air paths are formed on the left and right sides of the inner side of the side plate, which is convenient for heat dissipation and adsorption of impurities or smoke in the printing process. At the same time, when the hair dryer is blowing, it drives the air flow inside the bottom shell, which is convenient for driving the through holes to suck air at the same time, which is convenient for heat dissipation;

[0037] 4. This solution is provided with a convex block, a bottom plate and a support rod. A buckle is fixed at the end of the bottom plate, and the bottom plate can be engaged with the convex block through the buckle, so that the bottom plate and the bottom shell can be connected for use, and the side of the bottom plate can be rotated to unfold the support rod for stable support. At the same time, a fixing hole is installed inside the bottom plate for easy fixation, and a bottom column is provided at the center of the bottom surface of the bottom plate for easy installation on the conveyor belt for transmission;

[0038] 5. In this solution, connecting holes, middle blocks and connecting rods are provided. The corresponding plug-in between the connecting rods and the connecting holes facilitates the connection between the bottom shell monomers, and the threaded connection between the middle block and the connecting rod is retractable to adjust the connection distance, which is convenient for mass printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0040] Figure 1 It is a schematic diagram of the overall left side structure of the present invention;

[0041] Figure 2 It is a schematic diagram of the overall bottom-up structure of the present invention;

[0042] Figure 3 It is a schematic diagram of the top view structure of the present invention;

[0043] Figure 4 It is a schematic diagram of the overall decomposition structure of the present invention;

[0044] Figure 5 For the present invention Figure 3 Schematic diagram of the structure of the middle II section;

[0045] Figure 6 For the present invention Figure 3 Schematic diagram of the structure of section II-II;

[0046] Figure 7 For the present invention Figure 3 Schematic diagram of the structure of section III-III;

[0047] Figure 8 It is a schematic diagram of the exploded structure of the limiting plate of the present invention;

[0048] Fig. 9 It is a schematic diagram of the unfolded structure of the support rod of the present invention;

[0049] Fig.10 This is a schematic diagram of the bottom shell monomer connection structure of the present invention;

[0050] Fig.11 It is a schematic diagram of the cross-sectional structure of the intermediate block of the present invention.

[0051] In the figure: 1. bottom shell; 2. top shell; 3. side plate; 4. first slide groove; 5. limit plate; 51. card plate; 52. anti-skid pad; 53. suction cup; 6. first connecting block; 7. first adjusting rod; 8. second slide groove; 9. second connecting block; 10. second adjusting rod; 11. through hole; 12. boss; 13. hollow plate; 14. hair dryer; 15. first connecting frame; 16. purification suction fan; 17. second connecting frame; 18. ventilation hole; 19. boss; 20. bottom plate; 21. buckle; 22. fixing hole; 23. support rod; 24. bottom column; 25. connecting hole; 26. middle block; 27. connecting rod; 28. convex ring. DETAILED DESCRIPTION

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0053] See also Figure 1-11 , the present invention provides the following technical solutions:

[0054] A jig for anti-deviating SMT production, comprising: a bottom shell 1, a top shell 2, a side plate 3, a first slide groove 4, a limit plate 5, a card plate 51, an anti-slip pad 52, a suction cup 53, a first connecting block 6, a first adjusting rod 7, a second slide groove 8, a second connecting block 9, a second adjusting rod 10, a through hole 11, a boss 12, a hollow plate 13, a blower 14, a first connecting frame 15, a purification suction fan 16, a second connecting frame 17, a ventilation hole 18, a boss 19, a bottom plate 20, a buckle 21, a fixing hole 22, a support rod 23, a bottom column 24, a connecting hole 25, an intermediate block 26, a connecting rod 27 and a convex ring 28;

[0055] Among them, Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 The top shell 2 is fixedly connected with the upper bolts of the middle bottom shell 1, and a limit plate 5 for limiting the PCB is arranged on the surface of the top shell 2. The side plate 3 is integrally arranged on the end side of the top shell 2. The limit plate 5 is adjusted on the surface of the top shell 2 by an adjustment mechanism located inside the top shell 2. The limit plate 5 includes: a card plate 51, an anti-skid pad 52 and a suction cup 53. The card plate 51 is symmetrically arranged above the first slide groove 4 opened on the surface of the top shell 2. The side cross-sectional structure of the card plate 51 is an "L"-shaped structure. The anti-skid pad 52 is embedded and installed on the inner side of the card plate 51. The suction cup 53 is arranged at the center position of the bottom surface of the card plate 51. The adjustment mechanism includes: a first connecting block 6, a first adjusting rod 7, a second slide groove 8, a second connecting block 9 and a second adjusting rod 10. The first connecting block 6 is fixedly connected to the bottom surface of the limiting plate 5, and the first adjusting rod 7 is connected to the inner side of the first connecting block 6, the second connecting block 9 is connected to the middle position of the first adjusting rod 7, and the bottom of the second connecting block 9 forms a left-right sliding structure on the top surface of the bottom shell 1, and the second connecting block 9 is connected to the inside of the second adjusting rod 10, and the top end of the second adjusting rod 10 is rotatably connected to the side of the bottom shell 1, and the screwing directions of the threads at both ends of the first adjusting rod 7 and the second adjusting rod 10 are set in opposite directions, and the ends of the first adjusting rod 7 and the second adjusting rod 10 are provided with polygonal grooves, and the end of the first adjusting rod 7 is slidably connected to the inner side of the second slide groove 8 opened on the side of the top shell 2, and the first adjusting rod 7 forms a rotating structure on the inner side of the second connecting block 9.

[0056] In a specific application scenario, by inserting the end of the first adjusting rod 7 into the hexagonal wrench and rotating the first adjusting rod 7, the opposite threaded screwing method at both ends of the first adjusting rod 7 can be used to drive the limit plate 5 and the first connecting block 6 to move, and the position of the front and rear limit plates 5 can be adjusted. By inserting the second adjusting rod 10 into the wrench and rotating the second adjusting rod 10, the second connecting block 9 can be adjusted to the left and right positions, thereby adjusting the position of the limit plate 5 to adapt to different PCBs for use. At the same time, the top end of the card plate 51 is an inclined structure, which can facilitate the rapid placement of the PCB through the inclined surface of the card plate 51. At the same time, an anti-slip pad 52 is embedded in the inner side of the card plate 51 to prevent slipping, and a suction cup 53 is provided on the bottom surface of the card plate 51, which can adsorb the PCB through the suction cup 53, further avoiding PCB slippage, ensuring the stability of the PCB, enhancing production stability, and improving production efficiency.

[0057] Among them, Figure 1 , Figure 2 and Figure 7 The bottom of the middle through hole 11 is connected to the internal hollow structure of the bottom shell 1, the top of the through hole 11 is sealed and engaged with the top shell 2, the top surface of the top shell 2 is provided with a hollow plate 13 vertically corresponding to the through hole 11, the bottom of the through hole 11 is a funnel-shaped structure, and the top side of the through hole 11 is provided with a boss 12 integrated with the bottom shell 1, and the boss 12 is sealed and engaged with the bottom surface of the top shell 2.

[0058] In a specific application scenario, the bottom shell 1 and the top shell 2 are fixed by bolts, and the through hole 11 is connected to the top shell 2 in time, so that the hollow plate 13 is connected to the outside world and heat dissipation is convenient.

[0059] Among them, Figure 1 , Figure 4 and Figure 5 A second connecting frame 17 is installed on the left side of the top of the middle side plate 3, and a first connecting frame 15 is installed on the right side of the top of the side plate 3. The outer side of the second connecting frame 17 is connected to a purification suction fan 16 through a pipeline, and the outer side of the first connecting frame 15 is connected to a hair dryer 14 through a pipeline. The hair dryer 14 and the purification suction fan 16 are both installed in the internal hollow structure of the bottom shell 1, and the first connecting frame 15 and the second connecting frame 17 are arranged correspondingly on the left and right. The inner sides of the first connecting frame 15 and the second connecting frame 17 are connected to the ventilation holes 18 opened on the top side of the side plate 3, and the ventilation holes 18 are opened on the top side of the side plate 3 at equal intervals.

[0060] In a specific application scenario, air blowing can be performed by connecting the first connecting frame 15 through the hair dryer 14, and air suction can be performed by connecting the second connecting frame 17 through the purification suction fan 16, so that air paths are formed on the left and right sides of the inner side of the side panel 3, which is convenient for heat dissipation and for adsorbing impurities or smoke during the printing process. At the same time, when the hair dryer 14 is blowing, it drives the air flow inside the bottom shell 1, which is convenient for driving the through hole 11 to suction air at the same time, which is convenient for heat dissipation.

[0061] Among them, the left and right sides and the front and back sides of the bottom of the bottom shell 1 are integrally protruded with protrusions 19, the bottom of the bottom shell 1 is provided with a bottom plate 20, the end of the bottom plate 20 is integrally connected with a buckle 21, the bottom plate 20 is connected with the protrusion 19 through the corresponding snap-fit ​​connection between the buckle 21, the interior of the bottom plate 20 is symmetrically provided with fixing holes 22, the center position of the bottom surface of the bottom plate 20 is protruded with a bottom column 24, the side of the bottom plate 20 is rotatably connected with a support rod 23, and the rotation angle range of the support rod 23 is 0-90°.

[0062] In a specific application scenario, the bottom plate 20 is connected to the bottom shell 1 by snapping together the buckle 21 and the protrusion 19, and a fixing hole 22 is provided inside the bottom plate 20 to facilitate the fixed installation of the bottom plate 20. A bottom column 24 is provided at the bottom of the bottom plate 20 to facilitate the connection between the bottom plate 20 and the conveyor belt to reduce the installation area and facilitate the turning of the conveyor belt. At the same time, the side of the bottom plate 20 can rotate the support rod 23 to open it for stable support.

[0063] Among them, a connecting hole 25 is opened at the center position of the protrusion 19, and the bottom shell 1 monomers are connected to the middle block 26 through the protrusion 19 for combination use. The middle part of the middle block 26 is symmetrically threaded with a connecting rod 27, and the end of the connecting rod 27 is protruding with a convex ring 28. The connecting rod 27 is connected to the connecting hole 25 through the convex ring 28.

[0064] In a specific application scenario, the corresponding plug-in between the connecting rod 27 and the connecting hole 25 facilitates the connection between the bottom shell 1 monomers, and the threaded connection between the middle block 26 and the connecting rod 27 is retractable to adjust the connection distance, which is convenient for mass printing.

[0065] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention; the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in the field. In addition, the directional nouns such as up, down, left, right, front and back in the text only represent their relative positions rather than absolute positions.

[0066] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0067] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-deviating SMT production fixture, comprising: A bottom shell (1) and a top shell (2) fixedly connected to the bottom shell (1) by bolts, wherein a limiting plate (5) for limiting the position of the PCB is provided on a surface of the top shell (2); It is characterized by further comprising: A side plate (3), wherein the side plate (3) is integrally arranged on the end side of the top shell (2); The position of the limit plate (5) is adjusted on the surface of the top shell (2) by an adjustment mechanism located inside the top shell (2); a second connection frame (17) is installed on the left side of the top of the side plate (3); a first connection frame (15) is installed on the right side of the top of the side plate (3); the outer side of the second connection frame (17) is connected to a purification suction fan (16) via a pipeline; and the outer side of the first connection frame (15) is connected to a hair dryer (14) via a pipeline; A through hole (11), the bottom of the through hole (11) being in communication with the internal hollow structure of the bottom shell (1), the top of the through hole (11) being sealed and engaged with the top shell (2), and the top surface of the top shell (2) being provided with a hollow plate (13) perpendicularly corresponding to the through hole (11); Wherein, the hair dryer (14) and the purification suction fan (16) are both installed in the internal hollow structure of the bottom shell (1); The limiting plate (5) comprises: A card plate (51), the card plate (51) being symmetrically arranged above a first slide groove (4) opened on the surface of the top shell (2), and the side cross-sectional structure of the card plate (51) being an "L"-shaped structure; An anti-skid pad (52), wherein the anti-skid pad (52) is embedded and installed on the inner side surface of the card plate (51); A suction cup (53), wherein the suction cup (53) is arranged at the center of the bottom surface of the clamping plate (51); The regulating mechanism comprises: A first connecting block (6), the first connecting block (6) being fixedly connected to the bottom surface of the limiting plate (5), and a first adjusting rod (7) being connected to the inner side of the first connecting block (6); A second connecting block (9), the second connecting block (9) being connected to the middle position of the first adjusting rod (7), and the bottom of the second connecting block (9) forming a left-right sliding structure on the top surface of the bottom shell (1); A second adjusting rod (10), the second connecting block (9) being internally connected with the second adjusting rod (10), and the top end of the second adjusting rod (10) being rotatably connected to the side of the bottom shell (1); The screw thread directions of both ends of the first adjusting rod (7) and the second adjusting rod (10) are opposite to each other, the ends of the first adjusting rod (7) and the second adjusting rod (10) are both provided with polygonal grooves, the end of the first adjusting rod (7) is slidably connected to the inner side of the second sliding groove (8) provided on the side of the top shell (2), and the first adjusting rod (7) forms a rotating structure on the inner side of the second connecting block (9); The bottom of the bottom shell (1) is provided with protruding blocks (19) on both left and right sides and front and back sides, and the bottom of the bottom shell (1) is provided with a bottom plate (20), and the end of the bottom plate (20) is connected with a buckle (21) in an integrated manner, and the bottom plate (20) is connected to the protruding blocks (19) by corresponding engagement between the buckle (21).

2. The anti-deviating SMT production jig according to claim 1, characterized in that: The bottom of the through hole (11) is in a funnel-shaped structure, and a boss (12) is provided on the top side of the through hole (11) and is integrated with the bottom shell (1), and the boss (12) is correspondingly sealed and engaged with the bottom surface of the top shell (2).

3. The anti-deviating SMT production jig according to claim 1, characterized in that: The first connection frame (15) and the second connection frame (17) are arranged in a left-right correspondence, and the inner sides of the first connection frame (15) and the second connection frame (17) are connected to the ventilation holes (18) provided on the top side of the side plate (3), and the ventilation holes (18) are provided on the top side of the side plate (3) at equal intervals.

4. The anti-deviating SMT production jig according to claim 1, characterized in that: The bottom plate (20) is symmetrically provided with fixing holes (22), a bottom column (24) is protrudingly provided at the center of the bottom surface of the bottom plate (20), and a support rod (23) is rotatably connected to the side of the bottom plate (20), and the rotation angle range of the support rod (23) is 0-90°.

5. The anti-deviating SMT production jig according to claim 1, characterized in that: A connection hole (25) is provided at the center of the protrusion (19), and the bottom shell (1) monomers are connected to the middle block (26) via the protrusion (19) for combined use.

6. The anti-deviating SMT production jig according to claim 5, characterized in that: A connecting rod (27) is symmetrically threadedly connected to the middle of the intermediate block (26); a convex ring (28) is protruding from the end of the connecting rod (27); and the connecting rod (27) is correspondingly engaged and connected to the connecting hole (25) via the convex ring (28).

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