A SMT patch fixture

Abstract

The present invention relates to the field of SMT patch technology, and specifically to an SMT patch fixture, including a connecting bracket, two connecting plates are symmetrically fixedly connected on both sides of the surface of the connecting bracket, and a slide rail is arranged between the two connecting plates. The present invention drives the transmission mechanism to rotate through a driver, forcing the two moving boxes to slide simultaneously along the rack, forcing the wiping paper to be released by one of the guide rollers and rolled up by the other guide roller, which can ensure that the surface of the steel mesh plate is evenly cleaned, ensure that the steel mesh plate is evenly stressed and the wiping direction is guaranteed, and prevent the steel mesh plate from being deformed due to uneven stress. The connecting wheel drives the plug column to rotate, forcing the connecting belt to cooperate with the two rotating columns to rotate along the plug column, forcing the top head to press the wiping paper located below the connecting belt, forcing the wiping paper to fit tightly to the surface of the steel mesh plate, thereby improving the cleaning effect of the wiping paper, and by observing whether there are significant scratches on the surface of the beeswax board, the hole deformation of the steel mesh plate is detected.

Description

Technical Field

[0001] The present invention relates to the technical field of SMT patch technology, and in particular to an SMT patch fixture. Background Art

[0002] SMT patch refers to the abbreviation of a series of process flows based on printed circuit boards, namely surface assembly technology or surface mount technology. It is the most popular technology and process in the electronic assembly industry. During the production process of printed circuit boards, tin solder paste needs to be applied in advance, and then the components are assembled and fixed through welding technologies such as reflow soldering and wave soldering. The coating effect of tin solder paste has a crucial impact on the subsequent welding quality.

[0003] In order to ensure the stability of subsequent welding and prevent component offset or unstable welding during welding, the steel mesh needs to be cleaned after working for a period of time. The existing cleaning work is often done by staff holding special wiping paper to wipe the upper and lower surfaces of the steel mesh. The steel mesh needs to be removed and wiped before installation. Due to manual operation, uneven force may occur, and the steel mesh is relatively thin as a whole. Excessive force will also cause the steel mesh to deform, destroy its surface tension and make the steel mesh unusable. Replacing the steel mesh will seriously slow down the work. On the one hand, it will increase the work progress, and on the other hand, it will increase the overall work cost. Too little force will not be able to thoroughly clean the residual solder paste on the surface of the steel mesh, which will seriously affect the cleaning effect. In addition, since the surface of the steel mesh is penetrated by dense and numerous holes, its edges are relatively fragile, and the composition of the solder paste contains metal particles. The scraping of the scraper may cause metal particles to damage the holes, forcing the edges to produce slight deformation that is not easy to highlight. The existing work often only conducts tension tests on the surface after cleaning. The slight deformation of the holes is not easy to detect and will seriously affect the coating effect of the solder paste. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to propose an SMT patch fixture.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An SMT patch fixture comprises a connecting bracket and a driver, wherein two connecting plates are symmetrically fixedly connected to the two sides of the surface of the connecting bracket, a slide rail is arranged between the two connecting plates, a glue spraying mechanism is slidably connected to the surface of the slide rail, a steel mesh plate is clamped on the surface of the connecting bracket, and the steel mesh plate is located below the glue spraying mechanism;

[0007] The upper and lower sides of the connecting bracket surface close to the driver are symmetrically fixedly connected with two racks, and the two sides of the steel mesh plate surface are symmetrically slidably connected with two moving boxes. The racks and the moving boxes slide through each other, and a connecting frame is provided on one side of the rack surface. One end of the two moving boxes close to the rack is fixedly connected through the connecting frame. A transmission mechanism is provided inside the connecting frame, and the surface of the transmission mechanism meshes with the rack.

[0008] A linkage mechanism is provided inside the mobile box, one side of the linkage mechanism is fixedly connected to one end of the transmission mechanism, and two rotating wheels are symmetrically rotatably connected inside the mobile box, one of which is fixedly connected to one side of the linkage mechanism, and a connecting wheel is rotatably connected inside the mobile box, and the connecting wheel and the two rotating wheels are connected by belt transmission, and guide rollers are fixedly connected to the surfaces of the two rotating wheels, and wiping paper is rolled up on the surfaces of the guide rollers, and the wiping paper is slidably connected to the inside of the mobile box, and the wiping paper is slidably connected to the surface of the steel mesh plate, and a clamping mechanism is provided inside the mobile box, and the clamping mechanism is used to press the wiping paper against the surface of the steel mesh plate, and a conduit is connected to the top of the upper mobile box, and an air port is provided at the bottom of the upper mobile box, and the air port is connected to the conduit.

[0009] In the above-mentioned SMT patch fixture, the surfaces of the opposite sides of the two moving boxes are provided with storage grooves, the interior of the storage grooves is rotatably connected with a connecting cylinder, the interior of the connecting cylinder is slidably connected with a connecting column, one end of the connecting column is penetrated with one side of the connecting cylinder, and the end of the connecting column that penetrates to the outside of the connecting cylinder is fixedly connected with a wax plate, and the wax plate can be rotated ninety degrees between the connecting cylinder and the storage groove through a connecting column machine. One end of the connecting cylinder is fixedly connected with a rotating tooth, one side of the rotating tooth surface is meshed with a matching tooth, and the matching tooth and the rotating tooth are both rotatably connected to the interior of the moving box, and a connecting strip is meshed with the bottom of the matching tooth, and the connecting strip is fixedly connected to one side of the rack surface, and the connecting strip slides through the moving box.

[0010] In the above-mentioned SMT patch fixture, the clamping mechanism includes two rotating posts, a plug post and a connecting belt. A connecting head is fixedly connected to one side of the surface of the connecting wheel, and the connecting head is plugged into the plug post. The two rotating posts are symmetrically rotatably connected to the two sides of the plug post. The connecting belt is rotatably connected to the surfaces of the two rotating posts and the plug post. A number of connecting seats are evenly and fixedly connected to the surface of the connecting belt. Two top springs are symmetrically fixedly connected to the inside of the connecting seat. The other end of the top spring is fixedly connected to a top head. The top head slides through the connecting seat. The top head is used to press the wiping paper. A baffle is clamped on one side of the surface of the movable box, and the baffle is rotatably connected to the plug post.

[0011] In the above-mentioned SMT patch fixture, the transmission mechanism includes a guide tooth and two meshing teeth, the guide tooth and the two meshing teeth are rotatably connected to the inside of the connecting frame, and the two meshing teeth are symmetrically meshed with the upper and lower sides of the guide tooth, the surface of the connecting frame is symmetrically fixedly connected with a driver, the output end of the driver is fixedly connected to the guide tooth through a coupling, the other side of the meshing tooth surface is fixedly connected with a moving tooth, the moving tooth is rotatably connected to the inside of the moving box, the moving tooth meshes with the rack, the other side of the moving tooth surface is fixedly connected with a rotating shaft, and the rotating shaft is fixedly connected to the linkage mechanism.

[0012] In the above-mentioned SMT patch fixture, the linkage mechanism includes bevel teeth and bevel teeth, both of which are rotatably connected to the inside of the moving box, the bevel teeth are meshed with the bevel teeth, and the bevel teeth are fixedly connected to one end of the rotating shaft away from the moving teeth, and a one-way ratchet is clamped inside the bevel teeth, and one side of the surface of the one-way ratchet is fixedly connected to one of the rotating wheels.

[0013] In the above-mentioned SMT patch fixture, two springs are symmetrically fixedly connected to the inside of the connecting column, and a clamp is fixedly connected to the other end of the spring. The two clamps are respectively penetrated through the upper and lower sides of the connecting column at one end away from the spring, and the clamp passes through the end of the connecting column to the outside and is clamped into the inside of the connecting tube.

[0014] In the above-mentioned SMT patch fixture, the interior of the moving box is symmetrically rotatably connected with two positioning columns, the two positioning columns are respectively located on both sides of the two rotating columns, and the wiping paper is slidably connected to the interior of the moving box through the two positioning columns.

[0015] In the above-mentioned SMT patch fixture, the glue spraying mechanism includes a connecting box and a glue spraying head. The connecting box is slidably connected to the top of the steel mesh plate through a guide rail. Two scrapers are symmetrically slidably connected to the bottom of the connecting box. The glue spraying head is arranged at the bottom of the connecting box, and the two scrapers are symmetrically arranged on both sides of the glue spraying head.

[0016] Compared with the existing technology, the advantages of this SMT patch fixture are:

[0017] 1. The driver drives the transmission mechanism to rotate, forcing the two moving boxes to slide along the rack at the same time, forcing the wiping paper to be released by one of the guide rollers and rolled up by the other guide roller, which can ensure that the surface of the steel mesh is cleaned evenly, ensure that the steel mesh is evenly stressed and the wiping direction is guaranteed, and prevent the steel mesh from being deformed due to uneven stress;

[0018] 2. The connecting wheel drives the plug column to rotate, forcing the connecting belt to cooperate with the two rotating columns to rotate along the plug column, forcing the top head to press the wiping paper under the connecting belt, forcing the wiping paper to fit closely to the surface of the steel mesh plate, thereby improving the cleaning effect of the wiping paper;

[0019] 3. The connecting strip drives the matching teeth to rotate, and the connecting tube can be driven by the rotating teeth to rotate 90 degrees along the storage slot, forcing the beeswax board to fit the surface of the steel mesh board and slide on the surface of the steel mesh board following the moving box. By observing whether there are significant scratches on the surface of the beeswax board, the hole deformation of the steel mesh board can be detected;

[0020] To summarize, the present invention drives the transmission mechanism to rotate through the driver, forcing the two movable boxes to slide simultaneously along the rack, forcing the wiping paper to be released from one of the guide rollers and to be reeled in by the other guide roller, thereby ensuring that the surface of the steel mesh plate is evenly cleaned, ensuring that the steel mesh plate is evenly stressed and the wiping direction is guaranteed, preventing the steel mesh plate from being deformed due to uneven stress, and driving the plug column to rotate through the connecting wheel, forcing the connecting belt to cooperate with the two rotating columns to rotate along the plug column, forcing the top head to press the wiping paper under the connecting belt, forcing the wiping paper to fit tightly to the surface of the steel mesh plate, thereby improving the cleaning effect of the wiping paper, and detecting the deformation of the holes in the steel mesh plate by observing whether there are significant scratches on the surface of the beeswax plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 is a schematic cross-sectional structural diagram of the connecting frame of the present invention;

[0023] Figure 3 It is a schematic diagram of the connection structure of the linkage mechanism of the present invention;

[0024] Figure 4 It is a schematic diagram of the baffle connection structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of the connecting seat of the present invention;

[0026] Figure 6 The present invention Figure 5 A schematic diagram of the partially enlarged structure at center A;

[0027] Figure 7 It is a schematic cross-sectional structural diagram of a mobile box of the present invention;

[0028] Figure 8 It is a schematic diagram of the connector structure of the present invention;

[0029] Fig. 9 It is a schematic diagram of the cross-sectional structure of the storage groove of the present invention;

[0030] Fig.10 It is a schematic diagram of the cross-sectional structure of the connecting tube of the present invention;

[0031] Fig.11 It is a schematic diagram of the cross-sectional structure of the rack of the present invention.

[0032] Fig.12 It is a schematic diagram of the cross-sectional structure of the bevel gear of the present invention.

[0033] In the figure: 1, connecting bracket; 2, connecting plate; 3, slide rail; 4, glue spraying mechanism; 401, connecting box; 402, glue spraying head; 5, steel mesh plate; 6, rack; 7, moving box; 8, connecting frame; 9, transmission mechanism; 901, guide gear; 902, meshing gear; 10, linkage mechanism; 101, cone gear; 102, bevel gear; 11, rotating wheel; 12, connecting wheel; 13, guide roller; 14, wiping paper; 15, pressing mechanism; 151, rotating column; 152, plug Column; 153, connecting belt; 16, conduit; 17, blowing port; 18, storage slot; 19, connecting tube; 20, connecting column; 21, beeswax plate; 22, rotating tooth; 23, matching tooth; 24, connecting strip; 25, connecting head; 26, connecting seat; 27, top spring; 28, top head; 29, baffle; 30, driver; 31, moving tooth; 32, rotating shaft; 33, one-way ratchet; 34, spring; 35, clamp; 36, positioning column; 37, scraper disk. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 therefore cannot be understood as a limitation on the present invention.

[0036] Reference Figure 1-Figure 12 A SMT patch fixture includes a connecting bracket 1 and a driver 30. Two connecting plates 2 are symmetrically fixedly connected on both sides of the surface of the connecting bracket 1. A slide rail 3 is arranged between the two connecting plates 2. A glue spraying mechanism 4 is slidably connected to the surface of the slide rail 3. A steel mesh plate 5 is clamped on the surface of the connecting bracket 1. The steel mesh plate 5 is located below the glue spraying mechanism 4. The glue spraying mechanism 4 includes a connecting box 401 and a glue spraying head 402. The connecting box 401 is slidably connected to the top of the steel mesh plate 5 through a guide rail. Two scrapers 37 are symmetrically slidably connected to the bottom of the connecting box 401. The glue spraying head 402 is arranged at the bottom of the connecting box 401, and the two scrapers 37 are symmetrically arranged on both sides of the glue spraying head 402.

[0037] Among them, the solder paste is injected onto the surface of the steel mesh plate 5 through the glue spray head 402, and at this time the solder paste is located between the two scrapers 37, and slides back and forth along the slide rail 3 through the connecting box 401, and the two scrapers 37 alternately descend with the sliding of the connecting box 401, and the solder paste is scraped and pushed, forcing the solder paste on the upper surface of the steel mesh plate 5 to generate pressure, and finally falls through the mesh holes opened on the surface of the steel mesh plate 5, completing the corresponding coating of the corresponding points on the printed circuit board.

[0038] Two racks 6 are symmetrically fixedly connected to the upper and lower sides of the surface of the connecting bracket 1 close to the driver. Two moving boxes 7 are symmetrically slidably connected to the two sides of the surface of the steel mesh plate 5. The racks 6 and the moving boxes 7 slide through each other. A connecting frame 8 is provided on one side of the surface of the rack 6. One end of the two moving boxes 7 close to the rack 6 is fixedly connected through the connecting frame 8. A transmission mechanism 9 is provided inside the connecting frame 8. The surface of the transmission mechanism 9 is meshed with the rack 6. A linkage mechanism 10 is provided inside the moving box 7. One side of the linkage mechanism 10 is fixedly connected to one end of the transmission mechanism 9. The inside of the moving box 7 is symmetrically rotatably connected to two rotating wheels 11, one of which is fixedly connected to one side of the linkage mechanism 10. The inside of the moving box 7 is rotatably connected to a connecting wheel 12, which is connected to the two The rotating wheels 11 are connected by belt transmission, and the surfaces of the two rotating wheels 11 are fixedly connected with guide rollers 13. The surfaces of the guide rollers 13 are rolled up with wiping paper 14, and the wiping paper 14 is slidably connected to the interior of the mobile box 7, and the wiping paper 14 is slidably connected to the surface of the steel mesh plate 5. A clamping mechanism 15 is provided inside the mobile box 7, and the clamping mechanism 15 is used to press the wiping paper 14 on the surface of the steel mesh plate 5. A conduit 16 is connected to the top of the upper mobile box 7, and an air port 17 is provided at the bottom of the upper mobile box 7. The air port 17 is connected to the conduit 16. Two positioning columns 36 are symmetrically rotatably connected inside the mobile box 7. The two positioning columns 36 are respectively located on both sides of the two rotating columns 151, and the wiping paper 14 is slidably connected to the interior of the mobile box 7 through the two positioning columns 36.

[0039] Among them, the two moving boxes 7 are driven by the transmission mechanism 9 to slide along the surface of the steel mesh plate 5. In this process, the rotation of the transmission mechanism 9 will drive the two rotating wheels 11 and the connecting wheel 12 to rotate through the linkage mechanism 10. At this time, the wiping paper 14 will slide in the moving box 7 through the rotation of the two guide rollers 13, and will be released by the guide roller 13 close to the side of the linkage mechanism 10, and will be rolled up by the other guide roller 13. Through the positioning effect of the positioning columns 36 on both sides, it can be ensured that the wiping paper 14 fits the surface of the steel mesh plate 5 as much as possible. Through the sliding effect of the wiping paper 14 on the surface of the steel mesh plate 5, the upper and lower surfaces of the steel mesh plate 5 are fully wiped and cleaned, and the wiping is kept in the same direction. After wiping, the mesh on the surface of the steel mesh plate 5 is blown and cleaned through the effect of the duct 16 being connected with the blowing port 17, thereby further improving the overall cleaning effect.

[0040] The surfaces of the two opposite sides of the two mobile boxes 7 are each provided with a storage groove 18, and the interior of the storage groove 18 is rotatably connected to a connecting tube 19, and the interior of the connecting tube 19 is slidably connected to a connecting column 20, one end of the connecting column 20 is penetrated with one side of the connecting tube 19, and the end of the connecting column 20 that penetrates to the outside of the connecting tube 19 is fixedly connected to a wax plate 21, and the wax plate 21 can be rotated ninety degrees with the storage groove 18 through the connecting column 20 and the connecting tube 19, and one end of the connecting tube 19 is fixedly connected to a rotating tooth 22, and one side of the surface of the rotating tooth 22 is meshed with a matching tooth 23, and the matching tooth 23 and the rotating tooth 22 are both rotatably connected to the interior of the mobile box 7, and the bottom of the matching tooth 23 is meshed with a connecting strip 24, and the connecting strip 24 is fixedly connected to one side of the surface of the rack 6, and the connecting strip 24 slides through the mobile box 7.

[0041] Among them, during the initial movement of the moving box 7, the meshing effect between the connecting strip 24 and the mating tooth 23 drives the rotating tooth 22 to rotate. At this time, the connecting tube 19 will drive the wax plate 21 to rotate ninety degrees along the storage groove 18 through the connecting column 20, forcing the wax plate 21 to rotate to a vertical direction due to the parallel direction of the steel mesh plate 5. By moving and driving the wax plate 21 to contact and slide on the surface of the steel mesh plate 5, and the wax plate 21 will not produce additional pressure on the steel mesh plate 5, when the wax plate 21 passes through the mesh on the surface of the steel mesh plate 5, when the mesh is slightly deformed, clear scratches will be generated on the surface where the wax plate 21 contacts the steel mesh plate 5. If there is no deformation, the surface of the wax plate 21 will still be in a smooth state, so that the specific situation of the mesh can be easily detected during the cleaning process, and the situation that does not meet the work requirements can be discovered in advance, further ensuring the effect of solder paste coating.

[0042] The clamping mechanism 15 includes two rotating posts 151, an insertion post 152 and a connecting belt 153. A connecting head 25 is fixedly connected to one side of the surface of the connecting wheel 12, and the connecting head 25 is plugged into the insertion post 152. The two rotating posts 151 are symmetrically connected to the two sides of the insertion post 152. The connecting belt 153 is rotatably connected to the surfaces of the two rotating posts 151 and the insertion post 152. A plurality of connecting seats 26 are evenly and fixedly connected to the surface of the connecting belt 153. Two top springs 27 are symmetrically fixedly connected to the inside of the connecting seat 26. The other end of the top spring 27 is fixedly connected to a top head 28. The top head 28 slides through the connecting seat 26. The top head 28 is used to press the wiping paper 14. A baffle 29 is clamped on one side of the surface of the moving box 7, and the baffle 29 is rotatably connected to the insertion post 152.

[0043] Among them, by plugging the baffle 29 with the movable box 7, the plug post 152 is forced to be plugged with the connecting head 25. At this time, the rotation of the connecting wheel 12 will drive the plug post 152 to rotate. At this time, the connecting belt 153 will rotate along the two rotating columns 151 and the plug post 152, driving the connecting seat 26 and the top head 28 to rotate, and the wiping paper 14 located at the bottom of the connecting belt 153 is pressed by the top head 28, forcing the wiping paper 14 to fit tightly with the surface of the steel mesh plate 5, further improving the wiping and cleaning effect of the wiping paper 14, and by removing the baffle 29, the wiping paper 14 can be easily replaced.

[0044] The transmission mechanism 9 includes a guide tooth 901 and two meshing teeth 902, which are both rotatably connected to the inside of the connecting frame 8, and the two meshing teeth 902 are symmetrically meshed with the upper and lower sides of the guide tooth 901. The surface of the connecting frame 8 is symmetrically fixedly connected with a driver 30, and the output end of the driver 30 is fixedly connected to the guide tooth 901 through a coupling. The other side of the surface of the meshing tooth 902 is fixedly connected with a moving tooth 31, and the moving tooth 31 is rotatably connected to the inside of the moving box 7. The moving tooth 31 is meshed with the rack 6, and the other side of the surface of the moving tooth 31 is fixedly connected with the rotating shaft 32, and the rotating shaft 32 is fixedly connected to the linkage mechanism 10. The bevel tooth 101 and the bevel tooth 102 are both rotatably connected to the inside of the moving box 7, and the bevel tooth 101 is meshed with the bevel tooth 102, and the bevel tooth 101 is fixedly connected to one end of the rotating shaft 32 away from the moving tooth 31, and a one-way ratchet 33 is clamped inside the bevel tooth 102, and one side of the surface of the one-way ratchet 33 is fixedly connected to one of the rotating wheels 11.

[0045] Among them, the guide tooth 901 is driven to rotate by the driver 30, which can drive the two meshing teeth 902 on the upper and lower sides to rotate synchronously, and drive the moving tooth 31 to rotate. Through the meshing effect between the moving tooth 31 and the rack 6, the upper and lower moving boxes 7 are forced to slide along the surface of the steel mesh plate 5, and at this time, the moving tooth 31 will drive the bevel tooth 101 to rotate through the rotating shaft 32, which can drive the umbrella tooth 102 to rotate. When the moving box 7 slides toward the direction close to the connecting box 401, the umbrella tooth 102 will drive the one-way ratchet 33 to rotate, and drive the rotating wheel 11 to rotate. When the moving box 7 slides in the direction away from the connecting box 401, the rotation of the umbrella tooth 102 will not drive the one-way ratchet 33 to rotate, and the rotating wheel 11 will not rotate at this time, which can ensure that the wiping effect of the wiping paper 14 on the steel mesh plate 5 will only be carried out in a unified direction, which meets actual work requirements.

[0046] Two springs 34 are symmetrically fixedly connected inside the connecting column 20, and a clamp 35 is fixedly connected to the other end of the spring 34. The two clamps 35 are respectively penetrated through the upper and lower sides of the connecting column 20 at one end away from the spring 34, and the clamp 35 penetrates to the outside of the connecting column 20 and is clamped into the inside of the connecting tube 19.

[0047] Among them, the spring 34 pushes the clamping head 35, forcing the clamping head 35 to be clamped with the inside of the connecting tube 19 when penetrating to the outside of the connecting column 20, and by pulling the connecting column 20, the length of it extending out of the connecting tube 19 is adjusted, forcing the clamping head 35 to be clamped and fixed at different positions inside the connecting tube 19, so that the position of the beeswax plate 21 can be adjusted to ensure that the beeswax plate 21 can smoothly contact the surface of the steel mesh plate 5 after rotating ninety degrees.

[0048] The specific working principle and method of use of the present invention are explained in detail below: when in use, in the first step, the guide tooth 901 is driven to rotate by the driver 30, which can drive the two meshing teeth 902 on the upper and lower sides thereof to rotate synchronously, and drive the moving tooth 31 to rotate, and the meshing effect between the moving tooth 31 and the rack 6 is forced to slide along the surface of the upper and lower moving boxes 7 along the surface of the steel mesh plate 5, and at this time, the moving tooth 31 will drive the bevel tooth 101 to rotate through the rotating shaft 32, which can drive the bevel tooth 102 to rotate, and when the moving box 7 slides in the direction close to the connecting box 401, the bevel tooth 102 will drive the one-way ratchet 33 to rotate, and drive the rotating wheel 11 to rotate, and when the moving box 7 slides in the direction away from the connecting box 401, the rotation of the bevel tooth 102 will not drive the one-way ratchet 33 to rotate, and the rotating wheel 11 will not rotate at this time, which can ensure that the wiping effect of the wiping paper 14 on the steel mesh plate 5 will only be carried out in a unified direction, which meets the actual working requirements;

[0049] In the second step, the two moving boxes 7 are driven by the transmission mechanism 9 to slide along the surface of the steel mesh plate 5. In this process, the rotation of the transmission mechanism 9 will drive the two rotating wheels 11 and the connecting wheel 12 to rotate through the linkage mechanism 10. At this time, the wiping paper 14 will slide in the moving box 7 through the rotation of the two guide rollers 13, and will be released by the guide roller 13 on the side of the linkage mechanism 10, and will be reeled up by the other guide roller 13. The positioning effect of the positioning columns 36 on both sides can ensure that the wiping paper 14 fits the surface of the steel mesh plate 5 as much as possible. The sliding effect of the wiping paper 14 on the surface of the steel mesh plate 5 can adjust the upper and lower surfaces of the steel mesh plate 5. The surface is wiped and cleaned comprehensively, and the wiping is kept in the same direction. After wiping, the mesh holes on the surface of the steel mesh plate 5 are blown and cleaned through the effect of the connection between the conduit 16 and the air outlet 17. The plug post 152 is plugged into the connector 25. At this time, the rotation of the connecting wheel 12 drives the plug post 152 to rotate. At this time, the connecting belt 153 rotates along the two rotating columns 151 and the plug post 152, driving the connecting seat 26 and the top head 28 to rotate, and the wiping paper 14 at the bottom of the connecting belt 153 is pressed by the top head 28, forcing the wiping paper 14 to fit tightly with the surface of the steel mesh plate 5, thereby further improving the overall cleaning effect.

[0050] The third step, during the initial movement of the mobile box 7, the meshing effect between the connecting strip 24 and the mating tooth 23 drives the rotating tooth 22 to rotate. At this time, the connecting tube 19 will drive the wax plate 21 to rotate ninety degrees along the storage groove 18 through the connecting column 20, forcing the wax plate 21 to rotate to a vertical direction due to the parallel direction of the steel mesh plate 5. By moving and driving the wax plate 21 to contact and slide on the surface of the steel mesh plate 5, and the wax plate 21 will not produce additional pressure on the steel mesh plate 5, when the wax plate 21 passes through the mesh on the surface of the steel mesh plate 5, when the mesh is slightly deformed, clear scratches will be generated on the surface where the wax plate 21 contacts the steel mesh plate 5. If there is no deformation, the surface of the wax plate 21 will still be in a smooth state, so that the specific situation of the mesh can be easily detected during the cleaning process, and the situation that does not meet the work requirements can be discovered in advance, further ensuring the effect of solder paste coating.

[0051] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A SMT patch fixture, comprising a connecting bracket (1) and a driver (30), characterized in that: Two connecting plates (2) are symmetrically fixedly connected on both sides of the surface of the connecting bracket (1), a slide rail (3) is arranged between the two connecting plates (2), a glue spraying mechanism (4) is slidably connected to the surface of the slide rail (3), a steel mesh plate (5) is clamped on the surface of the connecting bracket (1), and the steel mesh plate (5) is located below the glue spraying mechanism (4); Two racks (6) are symmetrically fixedly connected to the upper and lower sides of the surface of the connecting bracket (1) close to the driver (30), and two moving boxes (7) are symmetrically slidably connected to the two sides of the surface of the steel mesh plate (5). The racks (6) and the moving boxes (7) slide through each other, and a connecting frame (8) is provided on one side of the surface of the rack (6). One end of the two moving boxes (7) close to the rack (6) is fixedly connected through the connecting frame (8), and a transmission mechanism (9) is provided inside the connecting frame (8), and the surface of the transmission mechanism (9) is meshed with the rack (6); The interior of the mobile box (7) is provided with a linkage mechanism (10), one side of the linkage mechanism (10) is fixedly connected to one end of the transmission mechanism (9), the interior of the mobile box (7) is symmetrically rotatably connected to two rotating wheels (11), one of the rotating wheels (11) is fixedly connected to one side of the linkage mechanism (10), the interior of the mobile box (7) is rotatably connected to a connecting wheel (12), the connecting wheel (12) and the two rotating wheels (11) are connected via a belt transmission, the surfaces of the two rotating wheels (11) are fixedly connected to guide rollers (13), and the guide rollers (13) are fixedly connected to the surfaces of the two rotating wheels (11). A wiping paper (14) is rolled up on the surface of the roller (13), and the wiping paper (14) is slidably connected to the inside of the moving box (7), and the wiping paper (14) is slidably connected to the surface of the steel mesh plate (5). A pressing mechanism (15) is provided inside the moving box (7), and the pressing mechanism (15) is used to press the wiping paper (14) against the surface of the steel mesh plate (5). The top of the upper moving box (7) is connected to a conduit (16), and the bottom of the upper moving box (7) is provided with an air outlet (17), and the air outlet (17) is connected to the conduit (16).

2. The SMT patch fixture according to claim 1, characterized in that: The surfaces of the two moving boxes (7) on the opposite sides are provided with storage grooves (18), the interior of the storage grooves (18) is rotatably connected to a connecting tube (19), the interior of the connecting tube (19) is slidably connected to a connecting column (20), one end of the connecting column (20) is penetrated with one side of the connecting tube (19), and one end of the connecting column (20) that penetrates to the outside of the connecting tube (19) is fixedly connected to a beeswax plate (21), and the beeswax plate (21) can be connected to the connecting tube through the connecting column (20). (19) is rotated ninety degrees with the storage groove (18), one end of the connecting tube (19) is fixedly connected with a rotating tooth (22), one side of the surface of the rotating tooth (22) is meshed with a matching tooth (23), the matching tooth (23) and the rotating tooth (22) are both rotatably connected to the inside of the moving box (7), the bottom of the matching tooth (23) is meshed with a connecting strip (24), the connecting strip (24) is fixedly connected with one side of the surface of the rack (6), and the connecting strip (24) and the moving box (7) are penetrated and slid.

3. The SMT patch fixture according to claim 1, characterized in that: The clamping mechanism (15) comprises two rotating posts (151), an inserting post (152) and a connecting belt (153); a connecting head (25) is fixedly connected to one side of the surface of the connecting wheel (12); the connecting head (25) is plugged into the inserting post (152); the two rotating posts (151) are symmetrically connected to the two sides of the inserting post (152); the connecting belt (153) is rotatably connected to the surfaces of the two rotating posts (151) and the inserting post (152); a plurality of connecting seats (26) are evenly fixedly connected to the surface of the connecting belt (153); two top springs (27) are symmetrically fixedly connected to the inside of the connecting seat (26); a top head (28) is fixedly connected to the other end of the top spring (27); the top head (28) slides through the connecting seat (26); the top head (28) is used to press the wiping paper (14); a baffle (29) is clamped to one side of the surface of the moving box (7); the baffle (29) is rotatably connected to the inserting post (152).

4. The SMT patch fixture according to claim 1, characterized in that: The transmission mechanism (9) comprises a guide tooth (901) and two meshing teeth (902), the guide tooth (901) and the two meshing teeth (902) are both rotatably connected to the inside of the connecting frame (8), and the two meshing teeth (902) are symmetrically meshed with the upper and lower sides of the guide tooth (901), the surface of the connecting frame (8) is symmetrically fixedly connected with a driver (30), the output end of the driver (30) is fixedly connected to the guide tooth (901) through a coupling, the other side of the surface of the meshing tooth (902) is fixedly connected with a moving tooth (31), the moving tooth (31) is rotatably connected to the inside of the moving box (7), the moving tooth (31) meshes with the rack (6), the other side of the surface of the moving tooth (31) is fixedly connected with a rotating shaft (32), and the rotating shaft (32) is fixedly connected to the linkage mechanism (10).

5. The SMT patch fixture according to claim 1, characterized in that: The linkage mechanism (10) comprises a bevel tooth (101) and an umbrella tooth (102), the bevel tooth (101) and the umbrella tooth (102) are both rotatably connected to the inside of the moving box (7), the bevel tooth (101) and the umbrella tooth (102) are meshed, and the bevel tooth (101) is fixedly connected to one end of the rotating shaft (32) away from the moving tooth (31), and a one-way ratchet tooth (33) is clamped inside the umbrella tooth (102), and one side of the surface of the one-way ratchet tooth (33) is fixedly connected to one of the rotating wheels (11).

6. The SMT patch fixture according to claim 2, characterized in that: Two springs (34) are symmetrically fixedly connected inside the connecting column (20), and a clamp (35) is fixedly connected to the other end of the spring (34). The ends of the two clamps (35) away from the spring (34) are respectively penetrated by the upper and lower sides of the connecting column (20), and the end of the clamp (35) that penetrates to the outside of the connecting column (20) is clamped with the inside of the connecting tube (19).

7. The SMT patch fixture according to claim 3, characterized in that: The interior of the mobile box (7) is symmetrically rotatably connected with two positioning columns (36), the two positioning columns (36) are respectively located on both sides of the two rotating columns (151), and the wiping paper (14) is slidably connected to the interior of the mobile box (7) via the two positioning columns (36).

8. The SMT patch fixture according to claim 1, characterized in that: The glue spraying mechanism (4) comprises a connection box (401) and a glue spraying head (402); the connection box (401) is slidably connected to the top of the steel mesh plate (5) via a guide rail; two scrapers (37) are symmetrically slidably connected to the bottom of the connection box (401); the glue spraying head (402) is arranged at the bottom of the connection box (401); and the two scrapers (37) are symmetrically arranged on both sides of the glue spraying head (402).

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