Selective wave soldering equipment

Abstract

The utility model belongs to the technical field of welding equipment, and particularly relates to selective wave soldering equipment which comprises a welding platform, a soldering flux spraying mechanism, a tin spraying mechanism, a material carrying table, a control unit, a first translation mechanism, a second translation mechanism and a lifting mechanism. The second translation mechanism is connected with the moving end of the first translation mechanism; the lifting mechanism is arranged at the moving end of the second translation mechanism; the material carrying table is arranged at the lifting end of the lifting mechanism and used for carrying materials to be welded. The soldering flux spraying mechanism and the tin spraying mechanism are sequentially arranged on the welding platform; the control unit drives the material carrying table to spray soldering flux through the soldering flux spraying mechanism and then tin the soldering flux through the tin spraying mechanism, so that welding is achieved. The control unit drives the material carrying table to move to the proper height and position in the X-axis direction, the Y-axis direction and the Z-axis direction, precise control over the welding position is achieved, the welding precision and quality are improved, the equipment size is smaller, and the cost is lower.

Description

Technical Field

[0001] This utility model belongs to the field of welding equipment technology, and in particular relates to a selective wave soldering device. Background Technology

[0002] Selective wave soldering is an advanced soldering technology primarily used in electronics manufacturing, especially in applications requiring precise control over the soldering area and quality. Selective wave soldering achieves precise soldering by pre-applying flux to the areas to be soldered and then exposing only those areas to a wave of molten solder. This differs from traditional wave soldering, which immerses the entire circuit board in molten solder.

[0003] Existing selective wave soldering equipment is typically large in size, expensive, and requires programming to adapt to the material welding process. Utility Model Content

[0004] The purpose of this invention is to provide a selective wave soldering device, which aims to solve the technical problems of large size and high cost of existing selective wave soldering devices.

[0005] To achieve the above objectives, this utility model provides a selective wave soldering device, including a soldering platform, a flux spraying mechanism, a tin spraying mechanism, a material carrier, a control unit, a first translation mechanism, a second translation mechanism, and a lifting mechanism. The first translation mechanism is disposed on the soldering platform, and the second translation mechanism is connected to the moving end of the first translation mechanism and is driven by the first translation mechanism to move along the X-axis. The lifting mechanism is disposed on the moving end of the second translation mechanism and is driven by the second translation mechanism to move along the Y-axis. The material carrier is disposed on the lifting end of the lifting mechanism and is driven by the lifting mechanism to move along the Z-axis, and the material carrier is used to carry the material to be soldered. The flux spraying mechanism and the tin spraying mechanism are sequentially disposed on the soldering platform. The control unit drives the material carrier to be sprayed with flux by the flux spraying mechanism and then tinned by the tin spraying mechanism to achieve soldering.

[0006] Optionally, it also includes a gantry frame, wherein the moving end of the first translation mechanism is connected to the gantry frame, and the second translation mechanism is fixedly mounted on the gantry frame.

[0007] Optionally, the first translation mechanism includes a first driving element, a first transmission element, and a translation plate; the first driving element is installed on the side of the welding platform facing away from the material carrier, and the output end of the first driving element is connected to the first transmission element; the first transmission element is disposed on the welding platform; the translation plate is connected to the first transmission element, and both ends of the translation plate are fixedly connected to the two side plates of the gantry frame respectively.

[0008] Optionally, the second translation mechanism includes a second driving element, a second transmission element, and a movable seat; the second driving element is fixed to the crossbar of the gantry frame, and the output end of the second driving element is connected to the second transmission element; the second transmission element is disposed on the crossbar; the movable seat is connected to the second transmission element, and the lifting mechanism is fixed to the movable seat.

[0009] Optionally, the lifting mechanism includes a third driving element, a third transmission element, and a connecting member. The third driving element is connected to the movable seat, and the third transmission element is drivenly connected to the third driving element. The connecting member is drivenly connected to the third transmission element, and the material platform is connected to the third driving element.

[0010] Optionally, the first driving element, the second driving element, and the third driving element are all drive motors.

[0011] Optionally, the first transmission element, the second transmission element, and the third transmission element are all lead screw or synchronous belt transmission structures.

[0012] Optionally, it also includes a readable storage medium disposed within the welding platform and connected to the control unit.

[0013] Optionally, the flux spraying mechanism includes a flux container, a spray valve, and a drive cylinder; the flux container contains a flux solution, the spray valve is connected to the flux container, and the moving end of the drive cylinder is connected to the spray valve.

[0014] Optionally, the tin spraying mechanism includes a tin furnace, a nozzle, a stepper motor, and a pump body; the stepper motor is connected to the pump body, the pump body is connected to the tin furnace, and the tin furnace is provided with the nozzle; the stepper motor drives the pump body to generate pressure so that the heated molten tin in the tin furnace is sprayed out from the nozzle.

[0015] The selective wave soldering equipment provided in this embodiment of the present invention has at least one of the following technical effects: the control unit, by controlling the first translation mechanism, the second translation mechanism, and the lifting mechanism, drives the material platform to move to an appropriate height and position along the XYZ axis, ensuring that the material to be soldered is aligned with the flux spraying mechanism and the tin spraying mechanism, thereby achieving precise control of the soldering position, improving soldering accuracy and quality. The equipment can adjust the position of the material platform according to different soldering requirements to adapt to materials of different sizes and shapes. Furthermore, the placement of the first translation mechanism, the second translation mechanism, and the lifting mechanism on the soldering platform results in a compact overall structure, smaller size, and lower cost. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the selective wave soldering equipment provided in this embodiment of the present invention.

[0018] Figure 2 A schematic diagram of the structure of the first translation mechanism provided in an embodiment of this utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the second translation mechanism provided in an embodiment of the present utility model.

[0020] Figure 4 A schematic diagram of the lifting mechanism provided in an embodiment of this utility model.

[0021] Figure 5 A schematic diagram of the flux spraying mechanism provided in this embodiment of the utility model.

[0022] Figure 6 This is a schematic diagram of the tin spraying mechanism provided in an embodiment of the present invention.

[0023] The following are the labeling elements in the figure:

[0024] 10—Welding platform; 20—Fluorescence spraying mechanism; 21—Fluorescence container

[0025] 22—Spray valve 23—Drive cylinder 30—Tin spraying mechanism

[0026] 31—Tin furnace; 32—Nozzle; 33—Stepper motor

[0027] 40—Material platform; 50—First translation mechanism; 51—First driving element

[0028] 52—First transmission element; 53—Translation plate; 54—Slide rail

[0029] 60—Second translation mechanism; 61—Second driving element; 62—Second transmission element

[0030] 63—Moving seat; 70—Lifting mechanism; 71—Third drive element

[0031] 72—Third transmission element; 73—Connecting component; 80—Gantry frame

[0032] 81—Side panel; 82—Horizontal panel. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The following description is based on the accompanying drawings. Figures 1-6 The described embodiments are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0034] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0037] In one embodiment of this utility model, such as Figures 1-6 As shown, a selective wave soldering device is provided, including a soldering platform 10, a flux spraying mechanism 20, a tin spraying mechanism 30, a material carrier 40, a control unit, a first translation mechanism 50, a second translation mechanism 60, and a lifting mechanism 70; the first translation mechanism 50 is disposed on the soldering platform 10 and located at the bottom of the soldering platform 10. The second translation mechanism 60 is located above the welding platform 10. The second translation mechanism 60 is connected to the moving end of the first translation mechanism 50 and is driven by the first translation mechanism 50 to move along the X-axis. The lifting mechanism 70 is located at the moving end of the second translation mechanism 60 and is driven by the second translation mechanism 60 to move along the Y-axis. The material platform 40 is located at the lifting end of the lifting mechanism 70 and is driven by the lifting mechanism 70 to move along the Z-axis. The material platform 40 is used to carry the material to be welded. The flux spraying mechanism 20 and the tin spraying mechanism 30 are sequentially arranged on the welding platform 10. The flux spraying mechanism 20 and the tin spraying mechanism 30 can be arranged in front and behind, or left and right, with the specific arrangement position designed according to requirements. The control unit drives the material platform 40 to spray flux through the flux spraying mechanism 20 and then tin through the tin spraying mechanism 30 to achieve welding. The solder spraying mechanism 30 applies molten solder to the flux-coated area to be soldered via wave spraying or jetting to achieve soldering. The control unit is electrically connected to the flux spraying mechanism 20, the solder spraying mechanism 30, the first translation mechanism 50, the second translation mechanism 60, and the lifting mechanism 70 for control purposes. Soldering materials, such as PCB boards, are placed on the material carrier 40.

[0038] Specifically, the control unit drives the material platform 40 to move along the X, Y, and Z axes to an appropriate height and position by controlling the first translation mechanism 50, the second translation mechanism 60, and the lifting mechanism 70. This ensures that the material to be soldered is aligned with the flux spraying mechanism 20 and the tin spraying mechanism 30, achieving precise control of the soldering position and improving soldering accuracy and quality. The equipment can adjust the position of the material platform 40 according to different soldering requirements to accommodate materials of different sizes and shapes. Furthermore, the placement of the first translation mechanism 50, the second translation mechanism 60, and the lifting mechanism 70 on the soldering platform 10 results in a compact overall structure and smaller size.

[0039] Furthermore, it also includes a heating mechanism (not shown in the attached diagram), which is mounted on the welding platform 10 and used to heat the welding material (PCB board). Specifically, the heating mechanism heats the PCB board (the control unit controls the first translation mechanism 50, the second translation mechanism 60, and the lifting mechanism 70 to achieve movement). The heating mechanism mainly preheats the PCB board as a whole to prevent damage due to uneven heating. Furthermore, the preheating by the heating mechanism also activates the flux.

[0040] This example also includes a gantry 80, with the moving end of the first translation mechanism 50 connected to the gantry 80, and a second translation mechanism 60 fixedly mounted on the gantry 80. Specifically, the gantry 80 includes two side plates 81 and a horizontal plate 82. The two side plates 81 are vertically arranged opposite each other and are slidably connected to the welding platform 10. The horizontal plate 82 connects the two side plates 81. The gantry 80 can slide horizontally on the welding platform 10 along the X-axis direction, driven by the first translation mechanism 50. The arrangement of the gantry 80, along with the layout of the first and second translation mechanisms 60, results in a compact overall structure and smaller size. The design of the gantry 80 allows the first and second translation mechanisms 50 to cover a larger working area, accommodating materials of different sizes to be welded. The gantry 80 structure provides additional stability, reducing vibration and displacement during welding and improving welding accuracy. This equipment is smaller and lighter than traditional selective wave soldering equipment. The size can be reduced to length (590mm), width (600mm), height (700mm) or even smaller, and it can be manually moved by only one employee, making it a miniature selective wave soldering device suitable for desktop use.

[0041] In this example, the first translation mechanism 50 includes a first driving element 51, a first transmission element 52, and a translation plate 53. The first driving element 51 is mounted on the side of the welding platform 10 facing away from the material carrier 40, and its output end is connected to the first transmission element 52. The first transmission element 52 is disposed on the welding platform 10. The translation plate 53 is connected to the first transmission element 52, and both ends of the translation plate 53 are fixedly connected to the two side plates 81 of the gantry frame 80. Specifically, the first driving element 51, mounted on the side of the welding platform 10 facing away from the material carrier 40, is typically a motor or other power source. The first transmission element 52 is connected to the output end of the first driving element 51 and can be a transmission mechanism such as a gear, chain, lead screw, or belt. The translation plate 53 is connected to the first transmission element 52 and is used to transmit power and move along the welding platform 10.

[0042] In this example, the second translation mechanism 60 includes a second driving element 61, a second transmission element 62, and a movable seat 63. The second driving element 61 is fixed to the crossbar of the gantry frame 80, and its output end is connected to the second transmission element 62. The second transmission element 62 is mounted on the crossbar. The movable seat 63 is connected to the second transmission element 62, and the lifting mechanism 70 is fixed to the movable seat 63. Specifically, the second driving element 61, fixed to the crossbar of the gantry frame 80, is typically a motor or other power source. The second transmission element 62 is connected to the output end of the second driving element 61 and can be a transmission mechanism such as a gear, chain, lead screw, or belt. The movable seat 63 is connected to the second transmission element 62 and is used to transmit power and move along the crossbar.

[0043] In this example, the lifting mechanism 70 includes a third drive element 71, a third transmission element 72, and a connecting member 73. The third drive element 71 is connected to the movable seat 63, and the third transmission element 72 is drive-connected to the third drive element 71. The connecting member 73 is drive-connected to the third transmission element 72. The material platform 40 is connected to the third drive element 71. Specifically, the third drive element 71, connected to the movable seat 63, is typically a motor or other power source, responsible for providing lifting power along the Z-axis. The third transmission element 72, drive-connected to the third drive element 71, can be a lead screw, rack and pinion, or hydraulic / pneumatic cylinder, etc., used to convert power into vertical movement. The connecting member 73, drive-connected to the third transmission element 72, transmits power to the material platform 40, ensuring the smoothness and accuracy of vertical movement.

[0044] In this example, the first driving element 51, the second driving element 61, and the third driving element 71 are all drive motors. The first transmission element 52, the second transmission element 62, and the third transmission element 72 are all lead screws. Specifically, the lead screw is rotatably connected to the corresponding structure. For example, in the first translation mechanism 50, one end of the lead screw is connected to the output end of the drive motor (power can be transmitted through a synchronous pulley structure), and the other end is rotatably connected to the welding platform 10. The translation plate 53 is threadedly connected to the lead screw, and the translation of the translation plate 53 is realized by the rotation of the lead screw.

[0045] Furthermore, to ensure smooth movement, the first translation mechanism 50, the second translation mechanism 60, and the lifting mechanism 70 all include a slide rail 54. Specifically, the slide rail 54 of the first translation mechanism 50 is mounted on the welding platform 10, and the translation plate 53 is slidably connected to the slide rail 54. The slide rail 54 of the second translation mechanism 60 is mounted on a crossbar, and the moving seat 63 is slidably connected to the crossbar. The slide rail 54 of the lifting mechanism 70 is mounted inside the housing of the lifting mechanism 70, and the connecting piece 73 is slidably connected to the slide rail 54.

[0046] In this example, a readable storage medium is also included, which is located within the welding platform 10 and connected to the control unit. Specifically, the readable storage medium stores the control unit and related data required during the welding process, such as welding parameters, operating instructions, and process flow. When the welding platform 10 starts, the control unit loads the necessary data from the readable storage medium and controls the operation of the welding platform 10 based on this data during the welding process. Programming of the control device can be completed on an external computer. During operation, simply connecting the device or using a USB drive to input the program into the readable storage medium allows the mode to be stored in the device. This enables setting a program for each material, and after copying the operation program to the device, subsequent processing of the same material only requires retrieving the corresponding program.

[0047] In this example, the flux spraying mechanism 20 includes a flux container 21, a spray valve 22, and a drive cylinder 23. The flux container 21 contains flux solution, the spray valve 22 is connected to the flux container 21, and the moving end of the drive cylinder 23 is connected to the spray valve 22. Specifically, the flux container 21 contains flux solution and is connected to the spray valve 22 through a pipe. The spray valve 22 is located at the front end of the flux spraying mechanism 20 and directly faces the material to be welded to achieve precise spraying. The spray valve 22 is a solenoid valve. The spray valve 22 is connected to the flux container 21 through a pipe and is also connected to the output end of the drive cylinder 23. The drive cylinder 23 is connected to the spray valve 22 through a piston rod and is used to push the spray valve 22 upward, allowing it to get closer to the material to be sprayed and achieve more precise coating. The control unit sends a signal to the drive cylinder 23 according to the welding process requirements. After receiving the signal, the piston rod of the drive cylinder 23 pushes the spray valve 22, causing the spray valve 22 to move upward. When the spray valve 22 is activated, the air inside the spray valve 22 is compressed, causing a pressure change, which causes the flux solution to be sprayed out from the spray valve 22 and evenly sprayed onto the area to be soldered.

[0048] In this example, the tin spraying mechanism 30 includes a tin pot 31, a nozzle 32, a stepper motor 33, a pump body, and a nitrogen protection device. The stepper motor 33 is connected to the pump body, which is connected to the tin pot 31. The tin pot 31 is equipped with the nozzle 32. The stepper motor 33 drives the pump body to generate pressure, causing the heated molten tin in the tin pot 31 to be sprayed out from the nozzle 32. Specifically, the tin pot 31 is a container for storing and heating molten tin. The tin pot 31 is connected to the pump body through a pipe and has a nozzle 32 on its top. The nozzle 32 is located at the outlet of the tin pot 31 and is directly aimed at the material to be soldered to achieve precise tin spraying. The stepper motor 33 is connected to the pump body through a mechanical connection (such as a gear or direct connection) to drive the pump body. The molten tin in the tin pot 31 is heated to an appropriate soldering temperature. Working process: The control unit sends a signal to the stepper motor 33 according to the soldering process requirements. After receiving the signal, the stepper motor 33 drives the pump body to generate pressure. Driven by stepper motor 33, the pump generates pressure, propelling molten solder in the solder pot 31 through pipes to nozzle 32. Under pressure, the molten solder is sprayed from nozzle 32, evenly coating the area to be soldered. The control unit precisely controls the movement of stepper motor 33 to adjust the spray volume and pressure of the molten solder, ensuring accuracy and consistency in soldering. A nitrogen protection device is connected to the solder pot 31, allowing nitrogen gas to be introduced into the pot. Utilizing the inert and non-flammable properties of nitrogen, it prevents oxygen and other gases from entering the gas environment, protecting the metal from oxidation during the soldering process.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A selective wave soldering device, characterized in that: The system includes a welding platform, a flux spraying mechanism, a tin spraying mechanism, a material carrier, a control unit, a first translation mechanism, a second translation mechanism, and a lifting mechanism. The first translation mechanism is disposed on the welding platform, and the second translation mechanism is connected to the moving end of the first translation mechanism and is driven by the first translation mechanism to move along the X-axis. The lifting mechanism is disposed on the moving end of the second translation mechanism and is driven by the second translation mechanism to move along the Y-axis. The material carrier is disposed on the lifting end of the lifting mechanism and is driven by the lifting mechanism to move along the Z-axis, and the material carrier is used to carry the material to be welded. The flux spraying mechanism and the tin spraying mechanism are sequentially disposed on the welding platform. The control unit drives the material carrier to be sprayed with flux by the flux spraying mechanism and then tinned by the tin spraying mechanism to achieve welding.

2. The selective wave soldering equipment according to claim 1, characterized in that: It also includes a gantry frame, the moving end of the first translation mechanism is connected to the gantry frame, and the second translation mechanism is fixedly mounted on the gantry frame.

3. The selective wave soldering equipment according to claim 2, characterized in that: The first translation mechanism includes a first driving element, a first transmission element, and a translation plate; the first driving element is installed on the side of the welding platform facing away from the material carrier, and the output end of the first driving element is connected to the first transmission element; the first transmission element is disposed on the welding platform; the translation plate is connected to the first transmission element, and both ends of the translation plate are fixedly connected to the two side plates of the gantry frame respectively.

4. The selective wave soldering equipment according to claim 3, characterized in that: The second translation mechanism includes a second driving element, a second transmission element, and a movable seat; the second driving element is fixed to the crossbar of the gantry frame, and the output end of the second driving element is connected to the second transmission element; the second transmission element is disposed on the crossbar; the movable seat is connected to the second transmission element, and the lifting mechanism is fixed to the movable seat.

5. The selective wave soldering equipment according to claim 4, characterized in that: The lifting mechanism includes a third driving element, a third transmission element, and a connecting member. The third driving element is connected to the movable seat, and the third transmission element is driven by the third driving element. The connecting member is driven by the third transmission element, and the material platform is connected to the third driving element.

6. The selective wave soldering equipment according to claim 5, characterized in that: The first driving element, the second driving element, and the third driving element are all drive motors.

7. The selective wave soldering equipment according to claim 5, characterized in that: The first transmission element, the second transmission element, and the third transmission element are all screw or synchronous belt transmission structures.

8. The selective wave soldering equipment according to claim 1, characterized in that: It also includes a readable storage medium disposed within the welding platform and connected to the control unit.

9. The selective wave soldering equipment according to claim 1, characterized in that: The flux spraying mechanism includes a flux container, a spray valve, and a drive cylinder; the flux container contains a flux solution, the spray valve is connected to the flux container, and the moving end of the drive cylinder is connected to the spray valve.

10. The selective wave soldering equipment according to claim 1, characterized in that: The tin spraying mechanism includes a tin furnace, a nozzle, a stepper motor, and a pump body; the stepper motor is connected to the pump body, the pump body is connected to the tin furnace, and the tin furnace is provided with the nozzle; the stepper motor drives the pump body to generate pressure so that the heated molten tin in the tin furnace is sprayed out from the nozzle.

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