Laser tin soldering device capable of automatically calibrating tin feeding

Abstract

The utility model belongs to the field of tin soldering processing, and particularly discloses a laser tin soldering device capable of automatically calibrating tin feeding, which comprises a conveying assembly for conveying a tin wire and an adjusting assembly for adjusting the position of the output end of the tin wire, the adjusting assembly comprises an adjusting table and a wire guide pipe connected with the adjusting table, and the output end of the tin wire penetrates through the wire guide pipe; the device further comprises a control module electrically connected with the adjusting table, and the control module is used for controlling the adjusting table to enable the guide wire tube to move. The device further comprises a monitoring mechanism used for monitoring the position of the output end of the tin wire and a laser head used for emitting laser, and the monitoring mechanism is connected with the control module. After the monitoring mechanism monitors the position of the tin wire, the control module controls the adjusting table, so that the wire guide pipe is driven to move, the tin wire penetrating through the wire guide pipe moves, the output end of the tin wire is adjusted to move to a proper position, accurate positioning of the tin wire is completed, manual operation is not needed, the labor cost is saved, and the welding operation efficiency is effectively improved.

Description

Technical Field

[0001] The present application belongs to the field of solder processing, and more specifically, relates to a laser soldering device with automatic calibration of solder feeding. Background Art

[0002] Laser tin wire welding is a commonly used laser soldering method. It uses laser to heat the pad so that the temperature of the pad reaches the melting temperature of the tin wire. The tin feeding device sends the tin wire to the pad, and the tin wire melts and wets the pad. The tin feeding device withdraws the tin wire from the pad, and the laser continues to keep the welding position warm. The liquid tin flows to the bottom of the pad, the laser stops emitting light, and the liquid tin cools and solidifies to form a solder point, completing the welding.

[0003] Since the temperature of laser welding is very high, an automatic wire feeding device is generally used to feed tin. The automatic wire feeding device generally consists of two parts, one is a conveying component that continuously feeds out the tin wire, and the other is a tin feeding rack assembly, which is used to guide the tin wire to the soldering point. Usually the tin feeding rack assemblies are fixed, and slight deviations in assembly often occur during use, causing the tin wire to deviate from the soldering point. There is currently a laser soldering machine, in which the tin feeding rack assembly is equipped with a manual displacement table, and the wire guide tube is designed to be installed on the manual displacement table. Before welding, the spatial position of the wire guide tube can be adjusted by manually rotating the differential head of the displacement table to solve the slight deviations caused by assembly.

[0004] Since the tin wire is soft and easy to deform, during the continuous welding process, after the tin wire is deformed, when welding the next pad, the tin wire will deviate from the soldering point, causing continuous welding errors. At this time, the welding operation must be suspended and the micrometer head must be re-adjusted to calibrate the tin wire lead-out position. However, this method uses manual calibration operation, which requires a high level of technical skills of the staff, takes a long time, and greatly affects the efficiency of the welding operation. Utility Model Content

[0005] In view of the defects of the prior art, the present application provides a laser soldering device with automatic calibration of tin feeding, aiming to solve the problem that manual calibration of tin wire has high requirements, is time-consuming, and affects the efficiency of welding operations.

[0006] The present application provides a laser soldering device with automatic calibration of tin feeding, which specifically includes a conveying component for conveying tin wire and an adjusting component for adjusting the position of the output end of the tin wire, wherein the adjusting component includes an adjusting platform and a wire guide tube connected to the adjusting platform, and the output end of the tin wire passes through the wire guide tube and extends to the welding position; the device also includes a control module electrically connected to the adjusting platform, and the control module is used to control the adjusting platform to move the wire guide tube; the device also includes a monitoring mechanism for monitoring the output end position of the tin wire and a laser head for emitting laser, and the monitoring mechanism is connected to the control module.

[0007] The above technical scheme conceived by the present application, compared with the prior art, adopts a monitoring mechanism to determine the output end position of the tin wire, and then controls the adjustment platform through the control module, thereby driving the wire guide tube to move, so that the tin wire passing through the wire guide tube moves, and the output end of the tin wire is adjusted to move to a suitable position to complete the precise positioning of the tin wire. The laser head emits laser to heat the pad, and the tin wire melts after contacting the pad to perform welding operations. No manual operation is required, which saves labor costs and effectively improves the efficiency of welding operations.

[0008] As further preferred, the adjustment platform includes an X-axis translation platform and a Y-axis translation platform, the X-axis translation platform is located below the Y-axis translation platform and connected to the output end of the Y-axis translation platform, a bracket is fixedly connected to the X-axis translation platform, and the wire guide tube is arranged on the bracket.

[0009] By adopting the above technical solution, the X-axis translation stage and the Y-axis translation stage cooperate to drive the bracket to move in the horizontal direction, thereby being able to drive the wire guide tube and the tin wire to move, so as to adjust the position of the tin wire and move it to a suitable soldering point position.

[0010] As further preferred, one side of the wire guide tube is rotatably connected to the bracket, and the central axis of the wire guide tube is perpendicular to its rotation axis.

[0011] By adopting the above technical solution, the angle of the wire guide tube can be adjusted by rotating it, thereby driving the angle of the end of the tin wire to change, so that the end of the tin wire can better contact the welding pad for welding operations.

[0012] As a further preferred embodiment, the conveying assembly includes a fixed frame and two tin feeding wheels, the two tin feeding wheels are rotatably connected to the fixed frame and are arranged opposite to each other, the rotation axes of the two tin feeding wheels are parallel, and the tin wire passes between the two tin feeding wheels and fits against the outer walls of the two tin feeding wheels; the conveying assembly also includes a driving motor, which is fixedly connected to the fixed frame, and one of the tin feeding wheels is coaxially arranged on the output shaft of the driving motor.

[0013] By adopting the above technical solution, the driving motor drives the tin feeding wheel to rotate, so as to transport the tin wire. The structure is simple, the tin wire transportation process is stable, and the welding effect of the tin wire is improved.

[0014] As further preferred, the monitoring mechanism includes at least two camera assemblies, one of which is arranged in a vertical direction, and the other is arranged at an angle, the shooting ends of the camera assemblies are both facing the wire guide tube, and the camera assemblies are connected to the control module.

[0015] By adopting the above technical solution, the two camera assemblies can monitor the position of the tin wire from different angles, accurately obtain the position of the tin wire, and thus accurately adjust the position of the tin wire.

[0016] As a further preference, the adjustment platform further includes a Z-axis translation platform, and an output end of the Z-axis translation platform is fixedly connected to the Y-axis translation platform.

[0017] By adopting the above technical solution, the Z-axis translation stage drives the Y-axis translation stage to move, so that the height of the tin wire can be adjusted to ensure that it has a suitable distance from the solder pad to improve the soldering effect.

[0018] As further preferred, the device also includes a display module, which is connected to the camera assembly to display image information of the tin wire and the soldering point.

[0019] By adopting the above technical solution, the display module displays the image information of the tin wire and the image information of the soldering point, and the user can monitor the welding process in real time from multiple angles through the display module.

[0020] As further preferred, the device also includes a quality monitoring module, which is connected to the camera assembly to detect welding quality, and the quality monitoring module is also connected to the display module.

[0021] By adopting the above technical solution, the standard welding spot image is stored in the quality monitoring module. The quality monitoring module determines the welding quality according to the image information of the welding spot and displays it through the display module, so as to facilitate the user to conduct re-inspection.

[0022] As a further preferred embodiment, two conveying components are provided, a wire guide block is provided on the outside of the wire guide tube, a first wire feeding nozzle and a second wire feeding nozzle connected to the wire inlet end of the wire guide tube are provided on the wire guide block, the tin wire conveyed by the two conveying components extends into the wire guide tube through the first wire feeding nozzle and the second wire feeding nozzle respectively, and the wire guide block is also provided with a wire outlet connected to the wire outlet end of the wire guide tube.

[0023] By adopting the above technical solution, the two conveying components can be used to convey tin wires of different diameters. According to processing needs, the corresponding thickness of tin wires can be automatically switched for welding, which effectively saves welding steps and improves work efficiency.

[0024] In general, the above technical solutions conceived by this application have the following technical advantages compared with the prior art:

[0025] 1. The monitoring mechanism is used to determine the output end position of the tin wire, and then the control module is used to control the adjustment platform, thereby driving the wire guide tube to move, so that the tin wire passing through the wire guide tube moves, and the output end of the tin wire is adjusted to move to a suitable position to complete the precise positioning of the tin wire. No manual operation is required, which saves labor costs and effectively improves welding efficiency.

[0026] 2. By photographing the solder joint position, obtaining solder joint image information, online inspection of solder joint quality, marking abnormalities, and feeding back to the display module for manual inspection;

[0027] 3. Tin wires of different diameters are transported through two conveying components. Tin wires of corresponding thickness can be automatically switched for welding according to processing needs, effectively saving welding procedures and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure provided by the embodiment of the present application;

[0029] Figure 2 It is a schematic diagram of the overall structure of the conveying assembly provided in an embodiment of the present application;

[0030] Figure 3 It is a schematic diagram of the overall structure of the adjustment component provided in the embodiment of the present application;

[0031] Figure 4 It is a schematic diagram of the internal structure of the guide wire block provided in an embodiment of the present application.

[0032] Throughout the drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0033] 1. Conveying assembly; 11. Fixing frame; 12. Tin feeding wheel; 13. Driving motor; 2. Adjusting assembly; 21. Adjusting table; 211. X-axis displacement table; 212. Y-axis displacement table; 213. Bracket; 214. Z-axis displacement table; 22. Wire guide tube; 23. Wire guide block; 231. First wire feeding nozzle; 232. Second wire feeding nozzle; 233. Wire outlet; 3. Monitoring mechanism; 31. Camera assembly; 4. Laser head. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0035] The present application discloses a laser soldering device with automatic calibration and solder feeding.

[0036] Reference Figure 1A laser soldering device with automatic calibration of tin feeding includes a conveying component 1, an adjusting component 2, a monitoring mechanism 3, a laser head 4 and a control module. The tin wire is conveyed by the conveying component 1; the monitoring mechanism 3 is connected to the control module. After the monitoring mechanism 3 detects the output end position of the tin wire, when the output end position of the tin wire is not in the position to be welded, the control module controls the adjusting component 2 to adjust the output end position of the tin wire to move the tin wire to a suitable soldering point position. The laser head 4 emits a laser to heat the soldering pad. The tin wire melts after contacting the soldering pad to perform welding operations. The control module can use existing computer equipment to control the adjustment component 2 to work through a computer. The control module is a conventional device in this field and its principle is not described in detail.

[0037] To facilitate the transportation of tin wire, the transportation component 1 includes a fixed frame 11, a driving motor 13 and two tin feeding wheels 12. The fixed frame 11 is vertically arranged. The two tin feeding wheels 12 are rotatably connected to one side of the fixed frame 11 and are arranged opposite to each other. The rotation axes of the two tin feeding wheels 12 are parallel. The tin wire passes between the two tin feeding wheels 12 and fits with the outer walls of the two tin feeding wheels 12. The driving motor 13 is fixedly connected to the other side of the fixed frame 11, and the output shaft of the driving motor 13 passes through the fixed frame 11. One tin feeding wheel 12 is coaxially fixedly connected to the output shaft of the driving motor 13. Starting the driving motor 13 drives the tin feeding wheel 12 to rotate, so as to transport or recycle the tin wire.

[0038] In order to accurately monitor the position of the tin wire, the monitoring mechanism 3 includes at least two camera assemblies 31, one camera assembly 31 is arranged in the vertical direction, and the other camera assembly 31 is arranged at an angle, and the shooting ends of the camera assemblies 31 are all facing the position of the tin wire. A plurality of inclined camera assemblies 31 can be arranged as needed. The vertical camera assembly 31 is connected to the laser head 4. A through hole is opened in the middle of the laser head 4. The camera assembly 31 can pass through the through hole to shoot the tin wire below. The camera assembly 31 is connected to the control module. When the image taken by the camera 31 shows that the position of the tin wire deviates, that is, when it is not in the welding position, the control module enables the adjustment assembly 2 to work to adjust the position of the tin wire output end.

[0039] In this embodiment, the adjustment component 2 includes an adjustment platform 21 and a wire guide tube 22 connected to the adjustment platform 21, the output end of the tin wire passes through the wire guide tube 22 and extends to the welding position, the control module is electrically connected to the adjustment platform 21, and the control module can control the adjustment platform 21 to move the wire guide tube 22. Specifically, the adjustment platform 21 includes an X-axis displacement platform 211 and a Y-axis displacement platform 212, the X-axis displacement platform 211 is located below the Y-axis displacement platform 212 and is connected to the output end of the Y-axis displacement platform 212, a bracket 213 is fixedly connected to the X-axis displacement platform 211, one side of the wire guide tube 22 is rotatably connected to the bracket 213, the central axis of the wire guide tube 22 is perpendicular to its rotation axis, and the bracket 213 is between the X-axis displacement platform 211 and the Y-axis displacement platform 212 With the cooperation, it can realize movement in the X-axis direction and the Y-axis direction, thereby driving the wire guide tube 22 and the tin wire to move, and the rotation of the wire guide tube 22 can adjust the angle of the bottom of the tin wire to facilitate welding operations; further, the adjustment platform 21 also includes a Z-axis displacement table 214, and the Y-axis displacement table 212 is fixedly connected to the output end of the Z-axis displacement table 214, and the Z-axis displacement table 214 is fixedly connected to the fixed frame 11. The X-axis displacement table 211 and the Y-axis displacement table 212 are moved along the Z-axis direction through the Z-axis displacement table 214, thereby realizing the movement of the wire guide tube 22 in space, which is convenient for adjustment to any position. The X-axis displacement table 211, the Y-axis displacement table 212 and the Z-axis displacement table 214 all adopt the displacement tables commonly used in this field, and the principle is not repeated here.

[0040] To facilitate the observation of the solder joints, the device also includes a display module and a quality monitoring module, wherein the display module is connected to the camera assembly 31 to display image information of the tin wire and the solder joint, the quality monitoring module is connected to the camera assembly 31 to detect the welding quality, and is connected to the display module to mark and feedback the solder joint image for easy viewing by the operator.

[0041] In order to improve the applicability of the device, in this embodiment, two conveying components 1 are set, which are respectively used to convey tin wires of different diameters. A wire guide block 23 is installed on the outside of the wire guide tube 22. The wire guide block 23 is provided with a first wire feeding nozzle 231 and a second wire feeding nozzle 232 connected to the wire inlet end of the wire guide tube 22. The tin wires conveyed by the two conveying components 1 are respectively extended into the wire guide tube 22 through the first wire feeding nozzle 231 and the second wire feeding nozzle 232. The wire guide block 23 is also provided with a wire outlet 233 connected to the wire outlet end of the wire guide tube 22. According to processing needs, the corresponding thickness of tin wire can be automatically switched for welding, one tin wire is drawn out of the wire guide tube 22, and the other tin wire is extended into the wire guide tube 22.

[0042] It should be understood that expressions such as "include" and "may include" used in this application indicate the existence of the disclosed functions, operations or constituent elements, and do not limit one or more additional functions, operations and constituent elements. In this application, terms such as "include" and / or "have" may be interpreted as indicating specific characteristics, numbers, operations, constituent elements, components or combinations thereof, but may not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components or combinations thereof.

[0043] It should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A laser soldering device with automatic calibration of solder feeding, characterized in that: The device comprises a conveying component (1) for conveying tin wire and an adjusting component (2) for adjusting the position of the output end of the tin wire, wherein the adjusting component (2) comprises an adjusting platform (21) and a wire guide tube (22) connected to the adjusting platform (21), and the output end of the tin wire passes through the wire guide tube (22); the device also comprises a control module electrically connected to the adjusting platform (21), and the control module is used to control the adjusting platform (21) to move the wire guide tube (22); the device also comprises a monitoring mechanism (3) for monitoring the position of the output end of the tin wire and a laser head (4) for emitting laser, and the monitoring mechanism (3) is connected to the control module.

2. The laser soldering device with automatic calibration and tin feeding as claimed in claim 1, characterized in that: The adjustment platform (21) comprises an X-axis displacement platform (211) and a Y-axis displacement platform (212); the X-axis displacement platform (211) is located below the Y-axis displacement platform (212) and is connected to an output end of the Y-axis displacement platform (212); a bracket (213) is fixedly connected to the X-axis displacement platform (211); and the wire guide tube (22) is arranged on the bracket (213).

3. The laser soldering device with automatic calibration and tin feeding as claimed in claim 2, characterized in that: One side of the wire guide tube (22) is rotatably connected to the bracket (213), and the central axis of the wire guide tube (22) is perpendicular to its rotation axis.

4. The laser soldering device with automatic calibration and solder feeding as claimed in claim 1, characterized in that: The conveying assembly (1) comprises a fixed frame (11) and two tin feeding wheels (12), the two tin feeding wheels (12) are both rotatably connected to the fixed frame (11) and arranged opposite to each other, the rotation axes of the two tin feeding wheels (12) are parallel, and the tin wire passes through between the two tin feeding wheels (12) and fits with the outer walls of the two tin feeding wheels (12); the conveying assembly (1) also comprises a driving motor (13), the driving motor (13) is fixedly connected to the fixed frame (11), and one of the tin feeding wheels (12) is coaxially arranged on the output shaft of the driving motor (13).

5. The laser soldering device with automatic calibration and tin feeding as claimed in claim 1, characterized in that: The monitoring mechanism (3) comprises at least two camera assemblies (31), one of the camera assemblies (31) is arranged in a vertical direction, and the other of the camera assemblies (31) is arranged at an angle, the shooting ends of the camera assemblies (31) are both facing the guide wire tube (22), and the camera assemblies (31) are connected to the control module.

6. The laser soldering device with automatic calibration and solder feeding as claimed in claim 2, characterized in that: The adjustment platform (21) further comprises a Z-axis displacement platform (214), and an output end of the Z-axis displacement platform (214) is fixedly connected to the Y-axis displacement platform (212).

7. The laser soldering device with automatic calibration and solder feeding as claimed in claim 5, characterized in that: The device also comprises a display module, which is connected to the camera assembly (31) and is used to display image information of the tin wire and the soldering point.

8. The laser soldering device with automatic calibration and solder feeding as claimed in claim 7, characterized in that: The device also comprises a quality monitoring module, which is connected to the camera assembly (31) to detect welding quality, and is also connected to a display module.

9. The laser soldering device with automatic calibration and solder feeding as claimed in claim 1, characterized in that: The conveying components (1) are provided with two, and a wire guide block (23) is provided outside the wire guide tube (22). The wire guide block (23) is provided with a first wire feeding nozzle (231) and a second wire feeding nozzle (232) which are connected to the wire inlet end of the wire guide tube (22). The tin wire conveyed by the two conveying components (1) extends into the wire guide tube (22) through the first wire feeding nozzle (231) and the second wire feeding nozzle (232) respectively, and the wire guide block (23) is also provided with a wire outlet (233) which is connected to the wire outlet end of the wire guide tube (22).

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