Automatic laser soldering machine

Abstract

The utility model discloses an automatic laser soldering machine which comprises a machine frame, a working table is arranged on the machine frame, an assembly line assembly is arranged on the working table, a laser welding system is arranged on the upper portion of the working table, and the laser welding system comprises a tin feeding component, a laser component, a smoke suction component and a supporting component for fixing the tin feeding component, the laser component and the smoke suction component. The supporting part comprises a Q-axis connecting plate, and the tin feeding part, the laser part and the smoke suction part are all fixed to the Q-axis connecting plate. The smoke suction component comprises a smoke suction pipe support and a smoke suction pipe arranged on the smoke suction pipe support, and the smoke suction pipe is fixed behind the tin feeding component and the laser component through the smoke suction pipe support. According to the utility model, the tin feeding part, the laser part and the smoke extraction part are all fixed on the Q-axis connecting plate, so that the welding stability is ensured; and meanwhile, the smoke extraction part is located behind the tin feeding part and the laser part, so that the smoke extraction part moves along with the movement of the tin soldering position to ensure that the tin soldering smoke is completely extracted.

Description

Technical Field

[0001] The utility model relates to the technical field of soldering machines, in particular to an automatic laser soldering machine for assembling PCB boards. Background Art

[0002] As an important executive component of PCB assembly equipment, the automatic laser soldering machine can automatically feed materials and automatically weld, thus directly greatly improving the production capacity and yield rate of factory work and reducing labor costs and increasing efficiency. The laser soldering machine does not require contact, the spot energy is concentrated, the heat-affected area is small, and it will not burden the substrate; it can effectively heat and provide solder, and can realize the automation of stable soldering. The laser has a long service life, low power consumption, and low maintenance cost; in addition, there is no loss of solder head, and it can complete the soldering of narrow positions and dense assemblies that the solder head cannot enter, and it is highly maintainable. Therefore, automatic laser soldering machines are widely used in PCB assembly scenarios.

[0003] However, in actual operation, the existing laser soldering machine needs to be held by the operator, which will cause fatigue after long-term work, and is not conducive to the welding of medium and large PCB boards, which greatly limits the application scenarios. In addition, the soldering iron equipment has low working efficiency and low equipment compatibility. It cannot be welded in small and dense places, and the welding smoke will cause harm to the body of long-term operators.

[0004] To this end, in the prior art, the utility model patent with the authorization announcement number CN203566033U discloses an automatic laser soldering machine, which includes a tin feeding and welding system, a platform motion system, a button control and operating system, a body and a bracket structure, a monitoring and correction system, a laser and an industrial control system, a base and a slide rail, wherein the base is provided with a laser and an industrial control system, the top of the base is provided with a slide rail and a button control and operating system, the slide rail is provided with a platform motion system, the body and the bracket structure are set above the slide rail, the tin feeding and welding system is provided on the body and the bracket structure, and the side of the base is connected with the monitoring and correction system. The utility model utilizes the control and operating system in conjunction with the laser welding technology to liberate the hands of the laser soldering machine operator, but in actual operation, it is found that the welding smoke of the tin feeding and welding system increases greatly when working for a long time, and when the solder paste of the tin feeding component is fed through the solder paste tube, the long-term work makes the welding stability unable to be guaranteed, and it often needs to be adjusted to achieve a more refined welding purpose. Utility Model Content

[0005] A brief overview of embodiments of the present invention is given below in order to provide a basic understanding of certain aspects of the present invention. It should be understood that the following overview is not an exhaustive overview of the present invention. It is not intended to identify key or important parts of the present invention, nor is it intended to limit the scope of the present invention. Its purpose is merely to present certain concepts in a simplified form as a prelude to a more detailed description discussed later.

[0006] The technical problem to be solved by the utility model is to provide an automatic laser soldering machine with strong versatility, high stability, greater safety and reliability, improve the soldering bracket structure to ensure the stability of long-term work, and add a smoking pipe to absorb welding smoke, so that it is suitable for occasions with high-precision welding requirements such as PCB assembly welding, wire welding, 3C industry welding, etc.

[0007] Specifically, the technical solution adopted by the utility model is an automatic laser soldering machine, comprising a frame, a workbench is arranged on the frame, an assembly line component is arranged on the workbench, a laser welding system is arranged on the upper part of the workbench, the laser welding system comprises a tin feeding component, a laser component, a smoke extraction component and a support component for fixing the above components (tin feeding component, laser component and smoke extraction component); the support component comprises an X-axis support member, a Y-axis support member, a Z-axis support member, a Q-axis support member and a Q-axis connecting plate, the Q-axis connecting plate is arranged on the Q-axis support member, the laser welding system also comprises an X-axis motion mechanism for driving the X-axis support member to move, and a Y-axis for driving the Y-axis support member to move. The invention relates to a motion mechanism, a Q-axis motion mechanism for driving the Q-axis support to move, a tin feeding drive mechanism for driving the tin feeding component, and a control mechanism for controlling the laser component. The X-axis motion mechanism and the Y-axis motion mechanism are both installed on the chassis. The tin feeding component, the laser component and the smoke extraction component are all fixed on the Q-axis motion mechanism. The tin feeding component and the laser component are both fixed on the Q-axis connecting plate. The smoke extraction component is fixed on the Q-axis support. The smoke extraction component includes a smoking pipe bracket and a smoking pipe arranged on the smoking pipe bracket. The smoking pipe is fixed to the rear of the tin feeding component and the laser component via the smoking pipe bracket, and moves with the solder position to extract the solder smoke.

[0008] Furthermore, to facilitate the adjustment of the spacing, the assembly line assembly includes a base plate, on which are provided an assembly line spacing adjustment device, a side positioning sensor device and a front positioning sensor device. The side positioning sensor device is arranged on the side of the base plate (it can be arranged on one side or both sides), and the front positioning sensor device is arranged on the front of the base plate (the side facing the operating table is recorded as the front). The assembly line spacing adjustment device adjusts the spacing of the fixture through the size of the fixture fed back by the side positioning sensor device and the front positioning sensor device.

[0009] Furthermore, the left and right sides of the bottom plate of the assembly line component respectively have a left plate and a right plate, and the side positioning sensor device is arranged on the left plate and / or the right plate.

[0010] Furthermore, the tin feeding component includes a tin wire placement rack and a tin breaking device, the upper part of the tin wire placement rack is fixed on the Q-axis connecting plate, and a tin outlet is arranged at the bottom end of the tin wire placement rack, and the tin wire is placed on the tin wire placement rack and passes through the tin breaking device to reach the tin outlet. The tin breaking device adopts the structure of the prior art, which is generally driven by a stepper motor to squeeze the tin wire to feed the tin, which will not be described in detail here.

[0011] Furthermore, the laser component includes a laser head, the upper part of the laser head is fixed on the Q-axis connecting plate, the laser head extends downward to set a laser light outlet, and the tin outlet and the laser light outlet are adjacently arranged and located in the same vertical plane.

[0012] Furthermore, the frame is provided with a control button below the workbench.

[0013] Furthermore, the rack is provided with one or more fans below the workbench.

[0014] Furthermore, the frame is provided with a plurality of ventilation holes below the workbench.

[0015] The utility model realizes an automatic laser soldering machine through the above scheme, which has the following advantages compared with the prior art: the tin feeding component, the laser component and the smoke extraction component are all fixed on the Q-axis connecting plate, thereby ensuring the stability of welding; at the same time, the smoke extraction component is located behind the tin feeding component and the laser component, so that it moves with the movement of the solder position to ensure that the solder smoke is completely sucked out. In addition, the automatic laser soldering machine of the utility model has the advantages of high precision, non-contact processing, small working space requirements, small work impact area, safe working process, clean and economical working process, simple operation and maintenance, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be better understood by referring to the following description in conjunction with the accompanying drawings, wherein the same or similar reference numerals are used in all drawings to represent the same or similar components. The accompanying drawings together with the following detailed description are included in and form a part of this specification, and are used to further illustrate the preferred embodiments of the present invention and explain the principles and advantages of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the automatic laser soldering machine;

[0018] Figure 2 for Figure 1 The enlarged schematic diagram at A in the middle;

[0019] Figure 3 Schematic diagram of removing the cover of the automatic laser soldering machine;

[0020] The corresponding numbers of the components in the figure are as follows: frame 1, Y-axis support 2 (platform Y-axis), assembly line assembly 3, laser welding system 4, Q-axis support 5 (platform Q-axis), Z-axis support 6 (platform Z-axis), X-axis support 7 (platform X-axis); control button 11, fan 12, ventilation hole 13; side positioning sensor device 31, assembly line spacing adjustment device 32, front positioning sensor device 33; tin outlet 41, laser light outlet 42, laser head 43, tin wire placement rack 44, smoking pipe 45; Q-axis connecting plate 51. DETAILED DESCRIPTION

[0021] Embodiments of the present invention will be described below with reference to the accompanying drawings. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that for the purpose of clarity, the representation and description of components and processes that are not related to the present invention and are known to those of ordinary skill in the art are omitted in the drawings and descriptions.

[0022] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 utility model. In addition, the terms "install", "connected", and "connected" 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 an indirect connection through an intermediate medium, or it can be a connection between the insides of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] As a specific example, see Figure 1-3 An automatic laser welding machine includes a frame 1, a workbench is provided on the frame 1, an assembly line component 3 is arranged on the workbench, a laser welding system is arranged on the upper part of the workbench, and the laser welding system includes a tin feeding component, a laser component, a smoke extraction component and a supporting component for fixing the above components (tin feeding component, laser component and smoke extraction component).

[0024] The support components include an X-axis support 7, a Y-axis support 2, a Z-axis support 6, a Q-axis support 5, and a Q-axis connecting plate 51. The laser welding system also includes an X-axis motion mechanism for driving the X-axis support, a Y-axis motion mechanism for driving the Y-axis support, a Q-axis motion mechanism for driving the Q-axis support, a tin-feeding driving mechanism for driving the tin-feeding component, and a control mechanism for controlling the laser component. The X-axis motion mechanism and the Y-axis motion mechanism are both installed on the chassis, and the tin-feeding component, the laser component, and the smoke extraction component are all fixed on the Q-axis motion mechanism. The Q-axis connecting plate 51 is provided on the Q-axis support, and the tin-feeding component and the laser component are both fixed on the Q-axis connecting plate 51; the smoke extraction component includes a smoking pipe bracket and a smoking pipe 45 provided on the smoking pipe bracket, and the smoking pipe bracket is fixed to the Q-axis support. The smoking pipe 45 is fixed to the rear of the tin-feeding component and the laser component via the smoking pipe bracket, and moves with the solder position to ensure that the solder smoke is completely sucked out.

[0025] To facilitate the adjustment of the spacing, the assembly line assembly 3 includes a bottom plate, and the left and right sides of the bottom plate are respectively provided with a left plate and a right plate. The bottom plate is provided with an assembly line spacing adjustment device 32, a side positioning sensor device 31 and a front positioning sensor device 33. The side positioning sensor device 31 is provided on the left or right side plate of the bottom plate. If two side positioning sensors 31 are provided, they can be provided on the left and right side plates of the bottom plate. The front positioning sensor device 33 is provided in front of the bottom plate (the side facing the operating table is recorded as the front). The assembly line spacing adjustment device 32 adjusts the spacing of the jig according to the size of the jig fed back by the side positioning sensor device 31 and the front positioning sensor device 33.

[0026] The tin feeding component includes a tin wire placement rack 44 and a tin breaking device. The upper part of the tin wire placement rack 44 is fixed on the Q-axis connecting plate 51. The bottom end of the tin wire placement rack 44 is provided with a tin outlet 41. The tin wire is placed on the tin wire placement rack 44 and passes through the tin breaking device to reach the tin outlet 41. The tin breaking device adopts the structure of the prior art, which is generally driven by a stepper motor to squeeze the tin wire to feed the tin, which will not be described in detail here.

[0027] The laser component includes a laser head 43 , the upper part of which is fixed on the Q-axis connecting plate 51 , and the laser head 43 extends downward to provide a laser light outlet 42 , and the tin outlet 41 and the laser light outlet 42 are adjacently provided and located in the same vertical plane.

[0028] In addition, the rack 1 is provided with a control button 11 below the workbench. One or more fans 12 are provided inside the rack 1 below the workbench. The rack 1 is provided with a plurality of ventilation holes 13 below the workbench.

[0029] The technical solution of the invention is as follows:

[0030] The utility model adopts the above scheme, which includes a frame 1 and an assembly line component 3 respectively set up on the frame 1 and a four-axis manipulator laser welding system (composed of a Y-axis support 2, a laser welding system 4, a Q-axis support 5, a Z-axis support 6, and an X-axis support 7). Among them, the frame 1 is composed of a hood bottom plate and a door, the Y-axis support 2 is a linear motor fixed parallel to the bottom plate of the frame 1, the assembly line component 3 and the Y-axis support 2 moving parts are fixed by pins and screws to follow the movement of the y-axis, the Z-axis support 6 and the X-axis support 7 are assembly parts that are fixed parallel and vertically to the bottom plate of the frame 1 by two equal-height columns, and the laser welding system 4 is fixed by a connecting plate clamping the Q-axis support 5 to follow the Q-axis and Z-axis up and down movement and rotation. The side positioning sensor device 31 and the front positioning sensor device 33 are fixed on the bottom plate of the assembly line component 3, and the assembly line spacing adjustment device 32 connects the left and right sides of the assembly line component 3, and makes different adjustments according to the size of the fixture. The tin wire is placed on the tin wire placement rack 44 and reaches the tin outlet 41 through the tin breaking device. The laser head 43 and the tin wire placement rack 44 are fixed by the Q-axis connecting plate 51. The laser light outlet 42 and the laser head 43 are components. The laser head can be fixed on the four-axis platform. The smoking pipe 45 is fixed behind the X-axis by the smoking pipe bracket and moves with the solder position to ensure that the solder smoke is sucked out.

[0031] The movement principle is as follows: the product to be welded is automatically fed to the assembly line component 3 on the right side of the equipment through the jig. After the photoelectric induction is in place, the jig positioning Y axis drives the jig to the welding position, and the XZQ three axes drive the soldering machine to the set point for soldering. The soldering smoke is discharged by the exhaust pipe (smoking pipe). After the soldering is completed, the positioning jig is released, and the Y axis drives the jig and assembly line component 3 to the left side of the equipment, which can be taken out manually or connected to the loading and unloading equipment for automatic operation.

[0032] The control method of the automatic laser soldering machine is as follows: (1) turning on the control button to start the switch control; (2) controlling the four-axis platform teaching pendant; (3) if loading and unloading equipment is added, the machine can automatically operate through photoelectric sensing signals.

[0033] The automatic laser soldering machine of the utility model has the following characteristics:

[0034] 1. High precision: the spot size can reach micron level, and the processing time can be controlled by program, making the precision much higher than the traditional soldering process;

[0035] 2. Non-contact processing: The soldering process can be completed without direct surface contact, so there is no stress caused by contact welding;

[0036] 3. Small working space requirement: The tiny laser beam replaces the soldering iron tip, and precision machining can also be performed when there are other interference objects on the surface of the workpiece;

[0037] 4. Small working impact area: local heating, small heat affected area;

[0038] 5. Safe working process: no static electricity threat during processing;

[0039] 6. Clean and economical working process: laser processing consumables, no waste generated during the processing;

[0040] 7. Simple operation and maintenance: Laser soldering is easy to operate and the laser head 43 is easy to maintain;

[0041] 8. Service life: Laser diode can be used for at least 10,000 hours, with long service life and stable performance.

[0042] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, elements, steps or components, but does not exclude the presence or addition of one or more other features, elements, steps or components.

[0043] Although the utility model has been disclosed above through the description of the specific embodiments of the utility model, it should be understood that all the above embodiments and examples are exemplary rather than restrictive. Those skilled in the art can design various modifications, improvements or equivalents of the utility model within the spirit and scope of the attached claims. These modifications, improvements or equivalents should also be considered to be included in the protection scope of the utility model.

Claims

1. An automatic laser soldering machine, characterized in that: It comprises a frame, a workbench is arranged on the frame, an assembly line assembly is arranged on the workbench, a laser welding system is arranged on the upper part of the workbench, and the laser welding system comprises a tin feeding component, a laser component, a smoke extraction component and a supporting component for fixing the above components; The support component includes an X-axis support component, a Y-axis support component, a Z-axis support component, a Q-axis support component and a Q-axis connecting plate, the Q-axis connecting plate is arranged on the Q-axis support component, the laser welding system also includes an X-axis motion mechanism for driving the X-axis support component to move, a Y-axis motion mechanism for driving the Y-axis support component to move, a Q-axis motion mechanism for driving the Q-axis support component to move, a tin-feeding driving mechanism for driving the tin-feeding component and a control mechanism for controlling the laser component, the X-axis motion mechanism and the Y-axis motion mechanism are both installed on the chassis, and the tin-feeding component, the laser component and the smoke extraction component are all fixed on the Q-axis motion mechanism; The tin delivery component and the laser component are both fixed on the Q-axis connecting plate, and the smoke extraction component is fixed on the Q-axis support; the smoke extraction component includes a smoke extraction pipe bracket and a smoke extraction pipe arranged on the smoke extraction pipe bracket, and the smoke extraction pipe is fixed to the rear of the tin delivery component and the laser component via the smoke extraction pipe bracket, and moves with the solder position to extract the solder smoke.

2. The automatic laser soldering machine according to claim 1, characterized in that: The assembly line assembly includes a base plate, on which are provided an assembly line spacing adjustment device, a side positioning sensor device and a front positioning sensor device. The side positioning sensor device is arranged on the side of the base plate, and the front positioning sensor device is arranged in front of the base plate. The assembly line spacing adjustment device adjusts the spacing of the jigs according to the size of the jigs fed back by the side positioning sensor device and the front positioning sensor device.

3. The automatic laser soldering machine according to claim 2, characterized in that: The left and right sides of the bottom plate of the assembly line assembly are respectively provided with a left side plate and a right side plate, and the side positioning sensor device is arranged on the left side plate and / or the right side plate.

4. The automatic laser soldering machine according to claim 1, characterized in that: The tin feeding component includes a tin wire placement rack and a tin breaking device. The upper part of the tin wire placement rack is fixed on the Q-axis connecting plate, and a tin outlet is arranged at the bottom end of the tin wire placement rack. The tin wire is placed on the tin wire placement rack and reaches the tin outlet through the tin breaking device.

5. The automatic laser soldering machine according to claim 4, characterized in that: The laser component comprises a laser head, the upper part of which is fixed on the Q-axis connecting plate, and the laser head extends downward to be provided with a laser light outlet.

6. The automatic laser soldering machine according to claim 5, characterized in that: The tin outlet and the laser light outlet are arranged adjacent to each other and are located on the same vertical plane.

7. The automatic laser soldering machine according to claim 1, characterized in that: The frame is located below the workbench and is provided with control buttons.

8. The automatic laser soldering machine according to claim 1, characterized in that: The rack is located below the workbench and is provided with one or more fans.

9. The automatic laser soldering machine according to claim 1, characterized in that: The frame is located below the workbench and is provided with a plurality of ventilation holes.

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