Tin wire feeding laser welding equipment

Abstract

The utility model belongs to the technical field of laser welding, and particularly discloses tin wire feeding laser welding equipment which comprises a machine table and a smoke purifier, two Y-axis moving modules, a safety grating and a support are fixedly connected to the upper end of the machine table, an XZ-axis moving module is connected to one side of the support, and a tin feeding welding unit is fixedly connected to the Z-axis moving end of the XZ-axis moving module; the feeding wheel with the surface provided with the resistance increasing flange and the pressing wheel are adopted as a tin wire conveying structure, the friction force between the resistance increasing flange and the tin wire can be increased through the resistance increasing flange, the tin wire is effectively prevented from slipping, and therefore the more stable wire feeding process is ensured, the tin wire can be effectively guided through the guide groove of the pressing wheel, the correct path is kept in the conveying process, and the welding quality is improved. And due to the design of the pressing wheels, pressure can be uniformly applied, and the tin wires are prevented from being deformed or damaged due to non-uniform pressure in the conveying process.

Description

Technical Field

[0001] The present application relates to the field of laser welding technology, and specifically to tin wire feeding laser welding equipment. Background Art

[0002] Tin wire laser welding is to automatically transport the tin wire to the vicinity of the soldering point, heat the tin wire to a molten state through a laser, and use it as solder to achieve welding. It is suitable for welding in the fields of electronic components, precision instruments, etc.

[0003] Current tin wire feeding laser welding equipment generally uses two symmetrical friction wheels or meshing gears to transport the tin wire. When using friction wheels to transport the tin wire, the wear of the friction wheels will lead to a decrease in gripping ability, thereby affecting the stability and accuracy of wire feeding. If meshing gears are used to transport the tin wire, the excessive clamping force of the meshing gears may cause the tin wire to deform or break, especially in the case of more brittle materials. Summary of the Invention

[0004] The purpose of this application is to provide a tin wire feeding laser welding device to solve the technical problems raised in the above background technology.

[0005] To achieve the above objectives, the present application provides the following technical solutions: a tin wire feeding laser welding device, comprising a machine platform and a fume purifier, wherein two Y-axis moving modules, a safety grating and a bracket are fixedly connected to the upper end of the machine platform, and an XZ-axis moving module is connected to one side of the bracket, and a tin feeding welding unit is fixedly connected to the Z-axis moving end of the XZ-axis moving module;

[0006] The tin feeding and welding unit includes a mounting plate and a laser welding part fixedly connected to one side of the Z-axis moving end, two precision displacement platforms symmetrically fixed to one side of the mounting plate, two connecting seats respectively fixed to the fixed sides of the two precision displacement platforms, two fixed seats respectively fixed to one side of the two connecting seats, two adjustment components respectively connected to one side of the two fixed seats, and two tin feeding components respectively connected to one side of the two adjustment components.

[0007] In one embodiment, the adjustment assembly includes a connecting shaft fixed to one side of the fixing seat, a plate body movably sleeved on the outside of the connecting shaft, an arc-shaped movable groove opened inside the plate body, a plurality of sockets opened inside the plate body and inside the fixing seat, a pin passing through the socket in the plate body and inserted into the socket in the fixing seat, and a clamping bolt passing through the arc-shaped movable groove and screwed inside the fixing seat.

[0008] In one embodiment, the tin feeding assembly includes a power part fixedly connected to one side of the plate body, a feeding wheel rotatably connected to the other side of the plate body and fixed to the output shaft of the power part, a pressure wheel rotatably connected to the other side of the plate body, and a material guide tube fixedly connected to the other side of the plate body.

[0009] In one embodiment, a plurality of resistance-increasing flanges are provided on the outer surface of the feeding wheel, and a material guide groove is provided on the outer surface of the pressing wheel.

[0010] In one embodiment, a guide roller is connected to one side of the connecting seat.

[0011] In one embodiment, a sliding groove is provided on one side of the connecting seat, and the fixing seat is slidably connected in the sliding groove and locked in place by a positioning bolt.

[0012] In one embodiment, a smoke extraction pipe is further connected to the outer surface of the laser welding portion, and one end of the smoke extraction pipe is connected to the input end of the smoke purifier through a pipeline.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1) The tin feeding assembly of the present application adopts a feed wheel and a pressure wheel with a resistance-increasing flange on the surface as the structure for conveying tin wire. The resistance-increasing flange can increase the friction between the tin wire and the tin wire, effectively preventing the tin wire from slipping, thereby ensuring a more stable wire feeding process. The guide groove of the pressure wheel can effectively guide the tin wire so that it maintains the correct path during the conveying process, reducing the risk of deviation or jamming. The design of the pressure wheel can apply pressure evenly to prevent the tin wire from being deformed or damaged due to uneven pressure during the conveying process.

[0015] 2) This application is provided with an adjustment component, which can adjust the tin feeding angle. The tin feeding angle can be adjusted according to the specific requirements of the welding part to ensure that the tin wire can accurately reach the welding point, thereby improving the accuracy and quality of welding. For workpieces with complex shapes, the angle adjustment can flexibly respond to the welding needs of the tin wire at different positions and angles. Adjusting the angle can improve the fluidity of the tin wire, ensure that the tin wire is evenly integrated into the welding area, and avoid welding defects. By optimizing the tin feeding angle, the contact area between the tin wire and the surrounding materials can be reduced, thereby reducing the heat-affected zone and reducing the risk of material deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of this application;

[0017] Figure 2 This is a schematic diagram of the tin feeding welding unit structure for this application;

[0018] Figure 3 This is a schematic diagram of the tin delivery component structure for this application;

[0019] Figure 4 Schematic diagram of the structural adjustment components for this application;

[0020] Figure 5 This is a schematic diagram of the jack structure in the fixing seat of this application.

[0021] In the figure: 1. Machine; 2. Smoke purifier; 3. Y-axis moving module; 4. Safety grating; 5. Bracket; 6. XZ-axis moving module; 7. Tin feeding and welding unit; 71. Mounting plate; 72. Precision displacement platform; 73. Connecting seat; 731. Slide groove; 74. Guide roller; 75. Fixed seat; 76. Tin feeding assembly; 761. Power unit; 762. Feeding wheel; 763. Resistance increasing flange; 764. Pressure wheel; 765. Guide trough; 766. Guide pipe; 77. Smoke pipe; 78. Laser welding part; 79. Adjustment assembly; 791. Plate; 792. Connecting shaft; 793. Arc movable groove; 794. Clamping bolt; 795. Socket; 796. Pin. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0023] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 this application. Example

[0024] See also Figure 1-5 The present application provides a technical solution: a tin wire laser welding device, comprising a machine 1 and a smoke purifier 2, wherein the upper end of the machine 1 is fixedly connected with two Y-axis moving modules 3 (by Figure 1As can be seen in the figure, the two Y-axis moving modules 3 are symmetrically designed. The two Y-axis moving modules 3 are both used to transport the workpiece to be welded fixed on the fixture, and move the workpiece to the bottom of the tin feeding welding unit 7. The advantage of designing two Y-axis moving modules 3 is that the two workpieces can be welded alternately. During the idle period when the welding of the workpiece on one of the Y-axis moving modules 3 is completed and moved for unloading and reloading, the tin feeding welding unit 7 can weld the workpiece to be welded on the other Y-axis moving module 3, thereby improving the efficiency of production welding), the safety grating 4 and the bracket 5, and the bracket 5 is connected to one side of the XZ-axis moving module 6 (the XZ-axis moving module 6 is used to drive the tin feeding welding unit 7 to move in the X-axis and Z-axis directions to adjust the XZ-axial position of the tin feeding welding unit 7), and the Z-axis moving end of the XZ-axis moving module 6 is fixedly connected to the tin feeding welding unit 7;

[0025] The tin feeding and welding unit 7 includes a mounting plate 71 fixedly connected to one side of the Z-axis moving end and a laser welding part 78 (laser welding head, laser welding belongs to mature existing technology and will not be described here), two precision displacement platforms 72 symmetrically fixed to one side of the mounting plate 71 (the precision displacement platform 72 is a multi-dimensional combination platform that can control the movement of multiple axes at the same time to achieve complex three-dimensional positioning. It is mainly used to adjust and position the connecting seat 73 and the tin feeding assembly 76. It belongs to mature existing technology and will not be described here), two connecting seats 73 respectively fixed to the fixed sides of the two precision displacement platforms 72, two fixed seats 75 respectively fixed to one side of the two connecting seats 73, two adjustment assemblies 79 respectively connected to one side of the two fixed seats 75, and two tin feeding assemblies 76 respectively connected to one side of the two adjustment assemblies 79.

[0026] like Figure 3-Figure 5As shown, the adjustment component 79 includes a connecting shaft 792 fixed to one side of the fixing seat 75, a plate body 791 movably sleeved on the outside of the connecting shaft 792, an arc-shaped movable groove 793 provided inside the plate body 791, a plurality of sockets 795 provided inside the plate body 791 and inside the fixing seat 75, a pin 796 passing through the socket 795 in the plate body 791 and inserted into the socket 795 in the fixing seat 75, and a clamping bolt 794 passing through the arc-shaped movable groove 793 and screwed into the inside of the fixing seat 75. After loosening the clamping bolt 794 and then pulling the pin 796 out of the socket 795, the plate body 791 can rotate on one side of the fixing seat 75 with the connecting shaft 792 as the axis, thereby adjusting the tin feeding component. The angle of 76 can be adjusted, and the tin feeding angle can be adjusted according to the specific requirements of the welding part to ensure that the tin wire can accurately reach the welding point, thereby improving the accuracy and quality of welding. For workpieces with complex shapes, the angle adjustment can flexibly respond to the welding needs of the tin wire at different positions and angles. Adjusting the angle can improve the fluidity of the tin wire, ensure that the tin wire is evenly integrated into the welding area, and avoid welding defects. By optimizing the tin feeding angle, the contact area between the tin wire and the surrounding materials can be reduced, thereby reducing the heat-affected zone and reducing the risk of material deformation. After the adjustment is completed, the pin 796 is inserted into the socket 795, and the clamping bolt 794 is tightened so that the clamping bolt 794 is pressed on the plate 791 to complete the positioning of the plate 791.

[0027] like Figure 3 As shown, the tin feeding assembly 76 includes a power part 761 fixedly connected to one side of the plate body 791, a feeding wheel 762 rotatably connected to the other side of the plate body 791 and fixed to the output shaft of the power part 761, a pressure wheel 764 rotatably connected to the other side of the plate body 791, and a material guide tube 766 fixedly connected to the other side of the plate body 791.

[0028] The outer surface of the feeding wheel 762 is provided with a plurality of resistance-increasing flanges 763 , and the outer surface of the pressing wheel 764 is provided with a material guide groove 765 .

[0029] By setting up the above scheme, the power unit 761 (motor) drives the feed wheel 762 to rotate. When the feed wheel 762 rotates, the resistance-increasing flange 763 on its outer surface can contact the outer surface of the tin wire, increase the friction between the tin wire and the tin wire, and effectively prevent the tin wire from slipping, thereby ensuring a more stable wire feeding process. The outer surface of the tin wire is also in contact with the inner wall of the guide groove 765. The guide groove 765 can effectively guide the tin wire so that it maintains the correct path during transportation and reduces the risk of deviation or jamming. The design of the pressure wheel 764 can apply pressure evenly to prevent the tin wire from being deformed or damaged due to uneven pressure during transportation. At the same time, since the guide groove 765 is an arc surface, part of the outer surface of the tin wire is in contact with the resistance-increasing flange 763 and part is in contact with the arc surface, which can reduce the clamping force on the outer surface of the tin wire (when the meshing gear transports the tin wire, the two parts of the outer surface of the tin wire are in tooth contact, and the clamping force is too strong).

[0030] A guide roller 74 is connected to one side of the connecting seat 73 to guide the tin wire. A chute 731 is provided on one side of the connecting seat 73. The fixing seat 75 is slidably connected to the chute 731 and locked in place by a positioning bolt. The fixing seat 75 can slide in the chute 731, making it easy to adjust the position of the fixing seat 75 and the tin feeding assembly 76. The positioning bolt passes through the chute 731 and is screwed into the inside of the fixing seat 75. Its compression and positioning principle is the same as that of the compression bolt 794. The bolt head portion of the bolt presses the back of the connecting seat 73, thereby achieving the positioning of the fixing seat 75.

[0031] The outer surface of the laser welding part 78 is also connected to a smoke extraction pipe 77, and one end of the smoke extraction pipe 77 is connected to the input end of the smoke purifier 2 through a pipe. The smoke generated during welding is sucked into the smoke purifier 2 through the smoke extraction pipe 77 and discharged after purification. The smoke purifier 2 is also a mature existing technology and will not be described here.

[0032] The above shows and describes the basic principles, main features and advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present application is limited by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present application, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0033] Although the embodiments of the present application 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 application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A tin wire feeding laser welding device, comprising a machine (1) and a fume purifier (2), characterized in that: The upper end of the machine (1) is fixedly connected to two Y-axis moving modules (3), a safety grating (4) and a bracket (5), and one side of the bracket (5) is connected to an XZ-axis moving module (6), and a tin feeding welding unit (7) is fixedly connected to the Z-axis moving end of the XZ-axis moving module (6); The tin feeding and welding unit (7) comprises a mounting plate (71) and a laser welding portion (78) fixed to one side of the Z-axis moving end, two precision displacement platforms (72) symmetrically fixed to one side of the mounting plate (71), two connecting seats (73) respectively fixed to the fixed sides of the two precision displacement platforms (72), two fixing seats (75) respectively fixed to one side of the two connecting seats (73), two adjusting components (79) respectively connected to one side of the two fixing components (75), and two tin feeding components (76) respectively connected to one side of the two adjusting components (79).

2. The tin wire feeding laser welding equipment according to claim 1, characterized in that: The adjustment assembly (79) includes a connecting shaft (792) fixed to one side of the fixing seat (75), a plate body (791) movably sleeved on the outside of the connecting shaft (792), an arc-shaped movable groove (793) provided inside the plate body (791), a plurality of sockets (795) provided inside the plate body (791) and inside the fixing seat (75), a pin (796) passing through the socket (795) in the plate body (791) and inserted into the socket (795) in the fixing seat (75), and a clamping bolt (794) passing through the arc-shaped movable groove (793) and screwed into the inside of the fixing seat (75).

3. The tin wire feeding laser welding equipment according to claim 2, characterized in that: The tin feeding assembly (76) includes a power unit (761) fixedly connected to one side of the plate body (791), a feeding wheel (762) rotatably connected to the other side of the plate body (791) and fixed to the output shaft of the power unit (761), a pressure wheel (764) rotatably connected to the other side of the plate body (791), and a material guide tube (766) fixedly connected to the other side of the plate body (791).

4. The tin wire feeding laser welding equipment according to claim 3, characterized in that: The outer surface of the feeding wheel (762) is provided with a plurality of resistance-increasing flanges (763), and the outer surface of the pressing wheel (764) is provided with a material guide groove (765).

5. The tin wire feeding laser welding equipment according to claim 4, characterized in that: One side of the connecting seat (73) is connected to a guide roller (74).

6. The tin wire feeding laser welding equipment according to claim 5, characterized in that: A sliding groove (731) is provided on one side of the connecting seat (73), and the fixing seat (75) is slidably connected in the sliding groove (731) and is locked in place by a positioning bolt.

7. The tin wire feeding laser welding equipment according to claim 6, characterized in that: The outer surface of the laser welding portion (78) is also connected to a smoke extraction pipe (77), and one end of the smoke extraction pipe (77) is connected to the input end of the smoke purifier (2) via a pipeline.

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