Cooling frame of SMT (Surface Mount Technology) jig

Abstract

The utility model discloses a cooling frame of an SMT (Surface Mount Technology) jig. The cooling frame comprises a cooling frame main body, a supporting plate and a bottom plate, according to the SMT patch heat dissipation device, the mounting groove, the ventilation opening and the fixing sleeve are arranged, the connecting sleeve is movably mounted through the mounting groove, the fixing groove is formed through the connecting sleeve, the filter plate is mounted through the fixing groove, and the filter plate filters air blown to SMT patch heat dissipation at the heat dissipation fan; according to the utility model, the fixing sleeve is arranged on the cooling frame, and the fixing sleeve is installed through the connecting plate, so that the problems that the cooling frame is not provided with a filtering structure at the cooling fan used for SMT mounting, the cooling fan without the filtering structure may suck dust, impurities and other small particles in the air in the operation process, and the particles can be blown to an SMT mounting area subsequently, so that the service life of the cooling frame is prolonged, and the service life of the cooling frame is prolonged are solved. Due to the fact that the working precision of the SMT chip mounter is extremely high, installation of electronic elements can be affected even if extremely small dust exists, and the problems of poor welding, short circuit or element damage are caused.

Description

Technical Field

[0001] The utility model relates to the technical field of SMT patch fixtures, in particular to a cooling rack for SMT patch fixtures. Background Art

[0002] During the SMT production process, the patch speed is fast, and the patch fixture cools down slowly after passing through the furnace. When printing solder paste, the patch fixture cannot be fully cooled, which can easily cause the steel mesh to deform and the solder paste on the steel mesh to dry easily, affecting the printing quality and easily causing the solder paste to fly due to insufficient viscosity during placement. Therefore, a cooling device is required for cooling.

[0003] However, there are some problems with the existing technology:

[0004] At present, the Chinese utility model with the publication number CN206481507U discloses a cooling rack for an SMT patch fixture, wherein the cooling rack is square and hollowed out on all four sides; the cooling rack is arranged at the entrance of the printing solder paste machine; the middle of the four columns of the cooling rack are respectively provided with grooves, and the grooves are for the transfer plate leading to the entrance of the printing solder paste machine to pass through; the height of the grooves matches the height of the transfer plate; the top and bottom of the cooling rack are each provided with evenly distributed cooling fans. A PCB board is placed on the transfer plate, and when the transfer plate transfers the PCB board to the printing solder paste for solder paste printing according to the set transfer speed, a cooling rack is set at the entrance of the printing solder paste, and a cooling fan is respectively provided at the top and bottom of the cooling rack; when the transfer plate passes through the middle of the cooling rack, the cooling fan on the cooling rack can complete the cooling and cooling of the PCB board in a short time, thereby achieving a cooling effect. The utility model has a simple structure and a reasonable design; it can quickly cool down the PCB board in a short time, with a good cooling effect; and improves production efficiency and quality.

[0005] Based on the search of the above patents and in combination with the equipment in the prior art, it was found that although the above equipment can solve the problems of fast patch speed in most SMT factories, slow cooling of the patch jig after passing through the furnace, and insufficient cooling of the patch jig when printing solder paste, which can easily cause deformation of the steel mesh and drying of the solder paste on the steel mesh, affecting the printing quality and easily causing the solder paste to be insufficiently sticky and fly away during mounting, during use, the cooling rack does not have a filtering structure at the cooling fan used for the SMT patch. The cooling fan without a filtering structure may inhale tiny particles such as dust and impurities in the air during operation, and these particles will then be blown to the SMT patch area; since the working precision of the SMT patch machine is extremely high, even very small dust may affect the installation of electronic components, resulting in poor welding, short circuit or component damage. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present invention is to provide a cooling rack for SMT patch fixtures, which has the advantage of adding a filtering structure at the cooling fan to filter the air blown to the SMT patch for heat dissipation, and solves the problem that the cooling rack does not have a filtering structure at the cooling fan used for the SMT patch. The cooling fan without a filtering structure may inhale tiny particles such as dust and impurities in the air during operation, and these particles will then be blown to the SMT patch area; since the working precision of the SMT patch machine is extremely high, even very small dust may affect the installation of electronic components, resulting in poor welding, short circuit or component damage.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cooling rack for an SMT patch fixture, comprising a cooling rack body, a support plate and a base plate, wherein the support plate is fixed to the left and right sides of the cooling rack body and is provided in two groups, the base plate is fixedly installed at the bottom of the support plate, a servo motor is fixedly installed on the left side of the cooling rack body, a placement plate is movably installed inside the cooling rack body, a placement slot is provided on the top of the placement plate, the placement slots are provided in several groups and are distributed at equal distances, and filter components are provided on the top and bottom of the cooling rack body.

[0008] As a preferred embodiment of the present invention, the filter assembly includes an installation groove, a connecting sleeve, a fixed groove and a filter plate. The installation groove is opened at the top and bottom of the cooling rack body, the connecting sleeve is movably installed inside the installation groove, the fixed groove is opened outside the connecting sleeve, the fixed groove is provided in four groups and is distributed in a rectangular shape with equal distances, and the filter plate is fixedly installed inside the fixed groove.

[0009] As a preferred embodiment of the present invention, ventilation holes are provided on the top and bottom of the cooling rack body, and the ventilation holes are arranged in several groups and distributed at equal distances. A connecting plate is fixedly installed inside the ventilation hole, and a fixing sleeve is fixedly installed inside the connecting plate.

[0010] As a preferred embodiment of the present invention, a cross plate is fixedly installed on the inner side of the fixed sleeve, a brake motor is fixedly installed on the inner side of the cross plate, the output end of the brake motor is transmission-connected with a rotating rod, and a cooling fan is fixedly installed on the end of the rotating rod away from the brake motor.

[0011] As a preferred embodiment of the present invention, adjustment grooves are provided on the left and right sides of the inner wall of the cooling rack body, the inner walls of the adjustment grooves are movably connected to the left and right sides of the placement plate, and a movable groove is provided on the top of the adjustment groove and is connected to the adjustment groove.

[0012] As a preferred embodiment of the present invention, a gear is movably installed inside the adjustment groove, the output end of the servo motor is connected to a transmission rod, the other end of the transmission rod passes through the cooling rack body from left to right and is fixedly connected to the left side of the gear, and a tooth plate is fixedly installed on the left side of the top of the placement plate, and the tooth plate is engaged with the gear.

[0013] As a preferred embodiment of the present invention, the top and bottom of the cooling rack body are fixedly installed with card plates, and the card plates are provided in several groups and are fixedly installed on the left, right and rear sides of the top and bottom of the cooling rack body, and the inner side of the card plates is movably connected to the outer side of the connecting sleeve.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model is provided with a mounting groove, a vent and a fixing sleeve. The connecting sleeve is movably installed through the mounting groove. The fixing groove is opened through the connecting sleeve. The filter plate is installed through the fixing groove. The air blown from the cooling fan to the SMT patch for heat dissipation is filtered through the filter plate. The connecting plate is installed through the vent and the fixing sleeve is installed through the connecting plate. The brake motor, the rotating rod and the cooling fan are installed through the fixing sleeve, so that the cooling fan rotates to deliver air to the SMT patch for heat dissipation. The brake motor is installed through the cross plate. The rotating rod is driven to rotate by the output end of the brake motor. The rotation of the rotating rod drives the cooling fan to rotate, and the rotation of the cooling fan transports air to the SMT patches to dissipate heat for the SMT patches, thereby solving the problem that the cooling rack does not have a filtering structure at the cooling fan used for the SMT patches. The cooling fan without a filtering structure may inhale tiny particles such as dust and impurities in the air during operation, and these particles will then be blown to the SMT patch area; since the working precision of the SMT patch machine is extremely high, even very small dust may affect the installation of electronic components, resulting in poor welding, short circuit or component damage. Therefore, it has the advantage of adding a filtering structure to the cooling fan to filter the air blown to the SMT patches for heat dissipation.

[0016] 2. The utility model sets the filter components at the top and bottom of the cooling rack body, movably installs the connecting sleeve through the installation groove, opens the fixing groove through the connecting sleeve, and installs the filter plate through the fixing groove, and filters the air blown from the cooling fan to the SMT patch for heat dissipation through the filter plate.

[0017] 3. The utility model sets vents at the top and bottom of the cooling rack body, installs the connecting plate through the vents, installs the fixing sleeve through the connecting plate, installs the brake motor, the rotating rod and the cooling fan through the fixing sleeve, drives the rotating rod to rotate through the output end of the brake motor, drives the cooling fan to rotate through the rotation of the rotating rod, and transports air to the SMT patch through the rotation of the cooling fan to dissipate heat for the SMT patch. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the explosion structure of the filter assembly of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the cooling rack body of the present invention;

[0021] Figure 4 For this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0022] In the figure: 1. Cooling rack body; 2. Support plate; 3. Bottom plate; 4. Servo motor; 5. Placement plate; 6. Placement slot; 7. Filter assembly; 71. Mounting slot; 72. Connecting sleeve; 73. Fixing slot; 74. Filter plate; 8. Ventilation port; 9. Connecting plate; 10. Fixing sleeve; 11. Cross plate; 12. Brake motor; 13. Rotating rod; 14. Cooling fan; 15. Adjustment slot; 16. Movable slot; 17. Gear; 18. Transmission rod; 19. Tooth plate; 20. Card plate. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figures 1 to 4 As shown, the utility model provides a cooling rack for an SMT patch fixture, comprising a cooling rack body 1, a support plate 2 and a base plate 3. The support plate 2 is fixed to the left and right sides of the cooling rack body 1 and is provided in two groups. The base plate 3 is fixedly installed at the bottom of the support plate 2. A servo motor 4 is fixedly installed on the left side of the cooling rack body 1. A placement plate 5 is movably installed inside the cooling rack body 1. A placement slot 6 is provided on the top of the placement plate 5. The placement slots 6 are provided in several groups and are distributed at equal distances. Filter components 7 are provided on the top and bottom of the cooling rack body 1.

[0025] refer to Figure 1 and Figure 2 The filter assembly 7 includes a mounting groove 71, a connecting sleeve 72, a fixing groove 73 and a filter plate 74. The mounting groove 71 is opened at the top and bottom of the cooling rack body 1, the connecting sleeve 72 is movably installed inside the mounting groove 71, and the fixing groove 73 is opened outside the connecting sleeve 72. There are four groups of fixing grooves 73 and they are distributed at equal distances in a rectangular shape. The filter plate 74 is fixedly installed inside the fixing groove 73.

[0026] As a technical optimization solution of the present invention, a filter assembly 7 is arranged at the top and bottom of the cooling rack body 1, the connecting sleeve 72 is movably installed through the installation groove 71, the fixing groove 73 is opened through the connecting sleeve 72, and the filter plate 74 is installed through the fixing groove 73, and the air blown from the cooling fan 14 to the SMT patch for heat dissipation is filtered through the filter plate 74.

[0027] refer to Figure 3 and Figure 4 The cooling rack body 1 is provided with ventilation holes 8 at the top and bottom. The ventilation holes 8 are provided in several groups and are distributed at equal distances. A connecting plate 9 is fixedly installed inside the ventilation holes 8, and a fixing sleeve 10 is fixedly installed inside the connecting plate 9.

[0028] As a technical optimization solution of the present invention, vents 8 are set at the top and bottom of the cooling rack body 1, the connecting plate 9 is installed through the vents 8, and the fixing sleeve 10 is installed through the connecting plate 9, and the brake motor 12, the rotating rod 13 and the cooling fan 14 are installed through the fixing sleeve 10, so that the cooling fan 14 can rotate to transport air to the SMT patch to dissipate heat for the SMT patch.

[0029] refer to Figure 3 and Figure 4 A cross plate 11 is fixedly installed on the inside of the fixed sleeve 10, a brake motor 12 is fixedly installed on the inside of the cross plate 11, the output end of the brake motor 12 is transmission-connected with a rotating rod 13, and a cooling fan 14 is fixedly installed on the end of the rotating rod 13 away from the brake motor 12.

[0030] As a technical optimization solution of the utility model, a cross plate 11 is arranged inside the fixed sleeve 10, and the brake motor 12 is installed through the cross plate 11. The output end of the brake motor 12 drives the rotating rod 13 to rotate, and the rotation of the rotating rod 13 drives the cooling fan 14 to rotate. The cooling fan 14 rotates to transport air to the SMT patch to dissipate heat for the SMT patch.

[0031] refer to Figure 2 and Figure 3The left and right sides of the inner wall of the cooling rack body 1 are provided with adjustment grooves 15, the inner walls of the adjustment grooves 15 are movably connected to the left and right sides of the placement plate 5, and the top of the adjustment grooves 15 is provided with a movable groove 16 and is connected to the adjustment grooves 15.

[0032] As a technical optimization solution of the present invention, adjustment grooves 15 are set on the left and right sides of the inner wall of the cooling rack body 1, and the placement plate 5 is movably supported by the adjustment grooves 15. The SMT patches inside the placement grooves 6 are pushed and adjusted by cooperating with the adjustment grooves 15 and the placement plate 5, so that the cooling fan 14 can transport air to the SMT patches to dissipate heat for the SMT patches.

[0033] refer to Figure 2 and Figure 3 A gear 17 is movably installed inside the adjustment slot 15, and a transmission rod 18 is connected to the output end of the servo motor 4. The other end of the transmission rod 18 passes through the cooling rack body 1 from left to right and is fixedly connected to the left side of the gear 17. A tooth plate 19 is fixedly installed on the left side of the top of the placement plate 5, and the tooth plate 19 is engaged with the gear 17.

[0034] As a technical optimization solution of the present invention, the gear 17 is arranged inside the adjustment slot 15, and the transmission rod 18 is driven to rotate through the output end of the servo motor 4. The transmission rod 18 rotates and the gear 17 is driven to rotate. The gear 17 rotates and the tooth plate 19 is driven to move. When the tooth plate 19 moves, it drives the placement plate 5 to move, which facilitates the transportation of the placement plate 5, thereby effectively dissipating heat for the SMT patch.

[0035] refer to Figure 1 、 Figure 2 and Figure 3 The top and bottom of the cooling rack body 1 are fixedly installed with card plates 20. Several groups of card plates 20 are provided and fixedly installed on the left, right and rear sides of the top and bottom of the cooling rack body 1. The inner side of the card plate 20 is movably connected to the outer side of the connecting sleeve 72.

[0036] As a technical optimization solution of the present invention, a card plate 20 is set at the top and bottom of the cooling rack body 1, and the connecting sleeve 72 installed inside the installation groove 71 is supported by the card plate 20 to prevent the connecting sleeve 72 from detaching from the cooling rack body 1 and thus being unable to filter the air delivered to the SMT patch by the cooling fan 14.

[0037] The working principle and use process of the present invention are as follows: when in use, the connecting sleeve 72 is movably installed through the installation groove 71, the fixing groove 73 is opened through the connecting sleeve 72, and the filter plate 74 is installed through the fixing groove 73. The air blown from the cooling fan 14 to the SMT patch for heat dissipation is filtered through the filter plate 74. The connecting sleeve 72 installed in the installation groove 71 is supported by the card plate 20 to prevent the connecting sleeve 72 from being separated from the cooling rack body 1 so as to be unable to filter the air delivered to the SMT patch by the cooling fan 14. The fixing sleeve 10 is installed through the connecting plate 9, and the brake motor 12 and the rotating rod 13 are fixed through the fixing sleeve 10. The installation work is carried out by the cooling fan 14, and the rotating rod 13 is driven to rotate by the output end of the brake motor 12. The cooling fan 14 is driven to rotate by the rotation of the rotating rod 13. The air is transported to the SMT patch by the rotation of the cooling fan 14 to dissipate heat for the SMT patch. The placement plate 5 is movably supported by the adjustment slot 15. The transmission rod 18 is driven to rotate by the output end of the servo motor 4. The gear 17 is driven to rotate by the rotation of the transmission rod 18. The gear 17 is driven to move by the rotation of the gear 17. The tooth plate 19 drives the placement plate 5 to move when it moves, which facilitates the transportation of the placement plate 5, thereby effectively dissipating heat for the SMT patch.

[0038] In summary: the cooling rack of the SMT patch fixture is provided with a mounting groove 71, a vent 8 and a fixing sleeve 10, the connecting sleeve 72 is movably installed through the mounting groove 71, the fixing groove 73 is opened through the connecting sleeve 72, and the filter plate 74 is installed through the fixing groove 73, the air blown to the SMT patch for heat dissipation at the cooling fan 14 is filtered through the filter plate 74, the connecting plate 9 is installed through the vent 8, and the fixing sleeve 10 is installed through the connecting plate 9, and the brake motor 12, the rotating rod 13 and the cooling fan 14 are installed through the fixing sleeve 10, so that the cooling fan 14 rotates to deliver air to the SMT patch to dissipate heat for the SMT patch. The cross plate 11 installs the brake motor 12, and drives the rotating rod 13 to rotate through the output end of the brake motor 12, and drives the cooling fan 14 to rotate through the rotation of the rotating rod 13. The rotation of the cooling fan 14 transports air to the SMT patch to dissipate heat for the SMT patch, which solves the problem that the cooling rack does not have a filtering structure at the cooling fan used for the SMT patch. The cooling fan without a filtering structure may inhale tiny particles such as dust and impurities in the air during operation, and these particles will then be blown to the SMT patch area; since the working precision of the SMT patch machine is extremely high, even very small dust may affect the installation of electronic components, resulting in poor welding, short circuit or component damage.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling rack for an SMT patch fixture, comprising a cooling rack body (1), a support plate (2) and a bottom plate (3), characterized in that: The support plate (2) is fixed on the left and right sides of the cooling rack body (1) and is provided with two groups. The bottom plate (3) is fixedly installed on the bottom of the support plate (2). A servo motor (4) is fixedly installed on the left side of the cooling rack body (1). A placement plate (5) is movably installed inside the cooling rack body (1). A placement groove (6) is opened on the top of the placement plate (5). The placement grooves (6) are provided in several groups and are distributed at equal distances. Filter components (7) are provided on the top and bottom of the cooling rack body (1).

2. The cooling rack for an SMT patch fixture according to claim 1, characterized in that: The filter assembly (7) comprises a mounting groove (71), a connecting sleeve (72), a fixing groove (73) and a filter plate (74); the mounting groove (71) is provided at the top and bottom of the cooling rack body (1); the connecting sleeve (72) is movably installed inside the mounting groove (71); the fixing groove (73) is provided outside the connecting sleeve (72); the fixing groove (73) is provided in four groups and is distributed at equal distances in a rectangular shape; the filter plate (74) is fixedly installed inside the fixing groove (73).

3. The cooling rack for an SMT patch fixture according to claim 1, characterized in that: The cooling rack body (1) is provided with ventilation holes (8) at the top and bottom, and the ventilation holes (8) are arranged in a plurality of groups and are distributed at equal distances. A connecting plate (9) is fixedly installed inside the ventilation hole (8), and a fixing sleeve (10) is fixedly installed inside the connecting plate (9).

4. The cooling rack for an SMT patch fixture according to claim 3, characterized in that: A cross plate (11) is fixedly mounted on the inner side of the fixed sleeve (10), a brake motor (12) is fixedly mounted on the inner side of the cross plate (11), an output end of the brake motor (12) is transmission-connected to a rotating rod (13), and a cooling fan (14) is fixedly mounted on one end of the rotating rod (13) away from the brake motor (12).

5. The cooling rack for an SMT patch fixture according to claim 1, characterized in that: The left and right sides of the inner wall of the cooling rack body (1) are both provided with adjustment grooves (15), the inner walls of the adjustment grooves (15) are movably connected to the left and right sides of the placement plate (5), and the top of the adjustment grooves (15) is provided with a movable groove (16) which is in communication with the adjustment grooves (15).

6. The cooling rack for an SMT patch fixture according to claim 5, characterized in that: A gear (17) is movably installed inside the adjustment groove (15), and a transmission rod (18) is connected to the output end of the servo motor (4). The other end of the transmission rod (18) passes through the cooling rack body (1) from left to right and is fixedly connected to the left side of the gear (17). A tooth plate (19) is fixedly installed on the left side of the top of the placement plate (5), and the tooth plate (19) is engaged with the gear (17).

7. The cooling rack for an SMT patch fixture according to claim 2, characterized in that: The top and bottom of the cooling rack body (1) are both fixedly mounted with card plates (20), and the card plates (20) are provided in a plurality of groups and are fixedly mounted on the left side, right side and rear side of the top and bottom of the cooling rack body (1), and the inner side of the card plates (20) is movably connected to the outer side of the connecting sleeve (72).

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