An auxiliary device for laser welding

Abstract

The utility model belongs to the field of welding technology, concretely relates to an auxiliary device for laser welding, including lifting slide, support and fixed assembly, the fixed assembly sets up on the support, the support sets up on the lifting slide, the utility model has the advantages of reducing the dependence on artificial experience, improving the stability and yield of laser welding.

Description

Technical Field

[0001] This utility model belongs to the field of welding technology, specifically relating to an auxiliary device for laser welding. Background Technology

[0002] Currently, in small-batch laser welding operations such as R&D, prototyping, and repair, besides directly holding the workpiece to be welded, simple V-blocks or vises are also used to fix the workpiece. However, these simple fixtures cannot achieve precise fine-tuning of the workpiece in three-dimensional space, making it difficult to ensure that the welding point is accurately located at the laser focus; at the same time, they lack effective clamping and anti-warping mechanisms, making them prone to misalignment due to thermal deformation when welding thin strip materials. Therefore, existing technologies still suffer from high dependence on manual operating experience, poor welding stability, and low product yield. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an auxiliary device for laser welding, so as to reduce the dependence on human experience and improve the stability and yield of laser welding.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] An auxiliary device for laser welding includes a lifting slide, a support, and a fixing component. The fixing component is disposed on the support, and the support is disposed on the lifting slide. The lifting slide is used to adjust the height of the workpiece to be welded, which is clamped by the fixing component, to the laser focal point.

[0006] In the auxiliary device for laser welding provided by this utility model, preferably, the longitudinal section of the support is U-shaped, and bearings are respectively provided on the two upright ears of the support, and a rotating shaft is sleeved on the inner ring of the bearing; the fixing assembly includes a wire guide tube, a clamp and a clamp locking nut, the wire guide tube is slidably disposed in the rotating shaft, and the clamp and clamp locking nut are disposed at one end of the two wire guide tubes facing each other; the axes of the two wire guide tubes coincide.

[0007] In the auxiliary device for laser welding provided by this utility model, more preferably, a locking screw hole is provided on the rotating shaft, and a locking screw is provided in the locking screw hole. The end of the locking screw can abut against and lock the wire guide tube.

[0008] In the auxiliary device for laser welding provided by this utility model, more preferably, the two rotating shafts are connected by a connecting rod.

[0009] In the auxiliary device for laser welding provided by this utility model, the bearing is further preferably a flange bearing.

[0010] In the auxiliary device for laser welding provided by this utility model, preferably, a displacement slide is fixedly mounted on the lifting slide, and the support is mounted on the displacement slide; the support has a strip placement groove and a welding groove, which intersect perpendicularly; the fixing component includes two pressure blocks, an elastic component, and an adjusting screw; the longitudinal section of the pressure block is "". The pressure block is shaped such that its long side is located on the side of the support, and its short side is located above the strip placement groove and can extend into the strip placement groove; the elastic member is disposed between the pressure block and the support, and the adjusting screw passes through the pressure block and the elastic member and is connected to the support; the two pressure blocks are located on both sides of the welding groove.

[0011] In the auxiliary device for laser welding provided by this utility model, preferably, a bar magnet is movably disposed on the support, and the bar magnet is located at the end of the strip placement groove away from the welding groove.

[0012] In the auxiliary device for laser welding provided by this utility model, more preferably, the elastic component is a spring.

[0013] By employing the above technical solution, the lifting slide and fixing components allow for adjustment of the welding point and laser focus point, ensuring accurate laser focusing on the welding point and achieving precise welding. The rotating shaft, wire guide tube, chuck, and chuck locking nut facilitate the rotation of the welding wire, enabling circumferential welding and improving the welding yield. The strip placement groove, welding groove, pressure block, elastic component, and adjusting screw ensure that the two strips being welded remain on the same plane during welding, guaranteeing a flat weld point, reducing reliance on manual experience, and further improving the welding yield. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the auxiliary device for laser welding in Example 1;

[0015] Figure 2 This is a top view of the auxiliary device for laser welding in Example 1;

[0016] Figure 3 This is a schematic diagram of the auxiliary device for laser welding in Example 2;

[0017] Figure 4 This is a top view of the auxiliary device for laser welding in Example 2;

[0018] Figure 5 For along Figure 4 Sectional view of line AA in the middle;

[0019] In the diagram: 1-Lifting slide, 2-Support, 3-Hawk, 4-Bearing, 5-Rotating shaft, 6-Wire guide tube, 7-Chuck, 8-Chuck locking nut, 9-Locking screw, 10-Connecting rod, 11-Wire rod, 12-Displacement slide, 13-Strip placement groove, 14-Welding groove, 15-Pressure block, 16-Spring, 17-Adjusting screw, 18-Long side, 19-Short side, 20-Bar magnet, 21-Strip. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] Example 1

[0022] This embodiment provides an auxiliary device for laser welding, such as... Figure 1 and 2 As shown, it includes a lifting slide 1 (LZ60 type), a support 2 and a fixing component. The fixing component is mounted on the support 2, and the support 2 is mounted on the lifting slide 1.

[0023] The longitudinal section of the support 2 is U-shaped. Bearings 4, which are flange bearings, are respectively installed on the two lugs 3 of the support 2. A rotating shaft 5 is fitted inside the inner ring of each bearing 4. The fixing assembly includes a guide tube 6, a chuck 7, and a chuck locking nut 8. The guide tube 6 is slidably mounted within the rotating shaft 5. The chuck 7 and the chuck locking nut 8 are located at opposite ends of the two guide tubes 6. The axes of the two guide tubes 6 coincide, meaning they lie in the same horizontal and vertical planes. The guide tube 6 can accommodate chucks 7 with diameters ranging from 0.2 mm to 5.0 mm.

[0024] A locking screw hole is provided on the rotating shaft 5, and a locking screw 9 is installed in the locking screw hole. The locking screw 9 can contact the guide wire tube 6. The locking screw 9 is used to fix the rotating shaft 5 and the guide wire tube 6 together.

[0025] The two rotating shafts 5 are connected by a connecting rod 10, so that the two guide tubes 6 can rotate synchronously to achieve the purpose of welding the two metal wires 11 to be welded.

[0026] This embodiment achieves welding as follows: The lifting slide 1 is installed directly below the laser emission point of the laser welding instrument. A suitable chuck 7 is selected based on the diameter of the wire 11 to be welded and installed on the wire guide tube 6. The distance between the end faces of the two chucks 7 is adjusted, and the locking screw 9 is tightened to fix the wire guide tube 6 to the rotating shaft 5. The two metal wires 11 to be welded are respectively installed in the two wire guide tubes 6. The distance between the welding end faces of the two wires 11 is adjusted to meet the welding requirements. The chuck locking nut 8 is tightened to fix the wire 11 to the wire guide tube 6. By precisely adjusting the welding point height to the laser welding focusing height position using the lifting slide 1, and manually rotating the wire guide tube 6, the wire 11 can be brought close to 360 degrees. o Circumferential welding. When rotated to the position of connecting rod 10, the welding point of wire 11 will be blocked by connecting rod 10. At this time, the two locking screws 9 can be loosened, and the two guide tubes 6 can be rotated simultaneously to expose the welding point blocked by connecting rod 10, thus achieving 360° welding. o Circumferential welding. After welding is completed, loosen the two clamp locking nuts 8 and pull out the welded wire 11 to complete the welding.

[0027] Example 2

[0028] This embodiment provides an auxiliary device for laser welding, such as... Figures 3 to 5 As shown, the device includes a lifting slide 1 (LZ60 type), a support 2, and a fixing assembly. The fixing assembly is mounted on the support 2. A displacement slide 12 (LX60-L type) is fixedly mounted on the lifting slide 1, and the support 2 is mounted on the displacement slide 12. A strip placement groove 13 and a welding groove 14 are provided on the support 2, intersecting perpendicularly. The fixing assembly includes two pressure blocks 15, an elastic component, and an adjusting screw 17. The longitudinal section of the pressure block 15 is shaped like a "...". The pressure block 15 is shaped like a "", with its long side 18 located on the side of the support 2 and its short side 19 located above the strip placement groove 13 and extending into it. An elastic member is positioned between the pressure block 15 and the support 2, and an adjusting screw 17 passes through the pressure block 15 and the elastic member to connect with the support 2. The two pressure blocks 15 are located on either side of the welding groove 14. The welding groove 14 effectively prevents laser damage to the support 2 during welding. In this embodiment, the elastic member is a spring 16.

[0029] A bar magnet 20 is movably mounted on the support 2. The bar magnet 20 is located at the end of the strip placement groove 13 away from the welding groove 14 and is used to fix the end of the strip 21 (strip metal material) away from the welding groove 14.

[0030] This embodiment achieves strip welding as follows: The lifting slide 1 is installed below the laser emission point of the laser welding instrument, ensuring that the point where the strip placement groove 13 and the welding groove 14 intersect perpendicularly is directly below the laser emission point. Two strips 21 (strip metal materials) to be welded are placed into the strip placement groove 13, with the welding point located at the perpendicular intersection of the strip placement groove 13 and the welding groove 14. The distance between the welding end faces of the two strips 21 is adjusted to meet the welding requirements. The adjusting screw 17 is tightened downwards, causing the short side 19 of the pressure block 15 to extend into the strip placement groove 13 and press and fix the strip 21 to be welded. Then, the bar magnet 20 is placed at the end of the strip placement groove 13 away from the welding groove to fix the other end of the strip 21 to be welded. The lifting slide 1 is adjusted so that the welding point is located at the laser focusing position. The displacement slide 12 is manually adjusted to achieve continuous welding of the strip 21 along its width direction. After welding, loosen the adjusting screw 12. Under the elastic force of the spring 16, the pressure block 15 moves upward, releasing the fixation on the strip 21. Then, remove the bar magnet 20 and take out the welded strip 21 to complete the welding.

[0031] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. An auxiliary device for laser welding, characterized in that, It includes a lifting slide, a support, and a fixing component. The fixing component is mounted on the support, and the support is mounted on the lifting slide. The lifting movement of the lifting slide adjusts the height of the workpiece to be welded from the laser focal point to the height of the laser focal point.

2. The auxiliary device for laser welding according to claim 1, characterized in that, The longitudinal section of the support is U-shaped. Bearings are respectively provided on the two upright ears of the support, and a rotating shaft is fitted inside the bearing. The fixing assembly includes a guide tube, a clamp and a clamp locking nut. The guide tube is slidably disposed in the rotating shaft. The clamp and the clamp locking nut are disposed at one end of the two guide tubes facing each other. The axes of the two guide tubes coincide.

3. The auxiliary device for laser welding according to claim 2, characterized in that, The rotating shaft has a locking screw hole, and a locking screw is installed in the locking screw hole. The end of the locking screw can abut against and lock the guide wire tube.

4. The auxiliary device for laser welding according to claim 3, characterized in that, The two rotating shafts are connected by a connecting rod.

5. The auxiliary device for laser welding according to claim 4, characterized in that, The bearing is a flange bearing.

6. The auxiliary device for laser welding according to claim 1, characterized in that, A displacement slide is fixedly mounted on the lifting slide, and the support is mounted on the displacement slide; the support has a strip placement groove and a welding groove, which intersect perpendicularly; the fixing assembly includes two pressure blocks, an elastic component, and an adjusting screw; the longitudinal section of the pressure block is shaped like a "". The pressure block is shaped such that its long side is located on the side of the support, and its short side is located above the strip placement groove and can extend into the strip placement groove; the elastic member is disposed between the pressure block and the support, and the adjusting screw passes through the pressure block and the elastic member and is connected to the support; the two pressure blocks are located on both sides of the welding groove.

7. The auxiliary device for laser welding according to claim 6, characterized in that, A bar magnet is movably mounted on the support, and the bar magnet is located at the end of the strip placement groove away from the welding groove.

8. The auxiliary device for laser welding according to claim 7, characterized in that, The elastic component is a spring.

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