Handheld laser welding machine

Abstract

The utility model relates to a handheld laser welding machine which comprises a handheld laser welding gun body, the handheld laser welding gun body is connected with a control cabinet through a cable, a positioning buckle is installed on the handheld laser welding gun body, the positioning buckle is connected with a turnover supporting arm in a coupling mode, the supporting arm is provided with a telescopic structure, a mark displaying rod is fixed to the upper end of the supporting arm, and the mark displaying rod is connected with the control cabinet. The lower end of the supporting arm is connected with an abutting part, and the abutting part abuts against the weld joint and is parallel to the mark displaying rod; when a fillet weld is welded, the angle between the welding gun head and the extension line of the abutting part can be adjusted by overturning the supporting arm, then the abutting part abuts against the weld, and then the handheld laser welding gun body is controlled to move in the length direction of the fillet weld. In the moving process, the included angle between the welding gun head and the welding seam does not change, so that the stability of the included angle between the laser beam and the welding seam in the welding process is guaranteed, and the welding forming effect is improved.

Description

Technical Field

[0001] The utility model belongs to the field of welding equipment, and specifically relates to a handheld laser welding machine. Background Art

[0002] A handheld laser welding machine is a type of welding equipment that mainly uses a high-energy-density laser beam as a heat source. During the welding process, the handheld laser welding gun body moves along the length of the weld. However, since it is necessary to maintain a certain angle between the laser beam and the weld to make the weld better formed, the technical requirements for the welder are relatively high.

[0003] In the prior art, a handheld laser welding machine is disclosed, and the document number is: CN116441725B, which includes a clamp installed on a welding gun body, and an adjustable angle adjustment frame is installed on the clamp, the adjustment frame has two forked legs, the welding gun head and the two fulcrums of the legs jointly play a three-point support role for the welding gun body, and the pointing position of the welding gun head is located on the mid-vertical line of the connecting line of the two legs, the adjustment frame is rotatably installed on the outer wall of the clamp through a rotating shaft, and a fixed disk fixedly connected to the clamp is fixed at the rotating shaft, and a plurality of notches distributed in an annular shape are provided on the arc surface outer wall of the fixed disk, and a wedge hole is provided on the outer wall of the adjustment frame, and a pin that can be embedded in the notch is inserted in the wedge hole. When the welding angle of the welding gun head needs to be adjusted, the pin is pulled out, and the adjustment frame can be rotated and adjusted with the rotating shaft as the center of the circle. After the adjustment is completed, the pin is reinserted into the wedge hole, and the engagement between the pin and the notch is used to lock the position of the adjustment frame, thereby completing the angle adjustment of the adjustment frame, and then achieving the purpose of adjusting the welding angle of the welding gun head.

[0004] However, in the above scheme, since the adjustment frame has two forked legs, the device is suitable for welding straight welds. When welding angle welds, it is necessary to consider not only the angle between the light beam and the weld, but also the distance between the welding gun head and the weld. Under the influence of multiple technical parameters, the forked legs will affect the alignment of the welding gun head and the weld, resulting in application limitations. Utility Model Content

[0005] The utility model aims to provide a handheld laser welding machine which can be used for welding fillet welds and can keep the angle of the welding gun head stable during the welding process.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is a handheld laser welding machine, comprising a handheld laser welding gun body, the handheld laser welding gun body is connected to a control cabinet through a cable, a positioning buckle is installed on the handheld laser welding gun body, the positioning buckle is axially connected to a flippable support arm, the support arm has a telescopic structure, a marker rod is fixed at the upper end of the support arm, and a supporting component is connected to the lower end of the support arm, the supporting component is against the weld and is parallel to the marker rod;

[0007] The positioning buckle is also provided with an angle display plate, the angle display plate has scale lines, and a marking line is provided on the marking rod.

[0008] Furthermore, the support arm includes a bottom support arm and a positioning arm. A notch is provided at the upper end of the positioning arm. The notch extends downward from the upper end of the positioning arm. The positioning buckle is located in the notch. The indicator rod is vertically connected to the positioning arm.

[0009] Furthermore, the lower end of the positioning arm is provided with a through hole extending upward, the through hole is connected to the notch, the upper end of the bottom support arm is inserted into the notch through the through hole, and the abutment component is connected to the lower end of the bottom support arm.

[0010] Furthermore, a tension reset spring is sleeved on the bottom support arm, the upper end of the tension reset spring is connected to the bottom support arm, and the lower end of the tension reset spring is fixed in the notch of the positioning arm.

[0011] Furthermore, the abutting component includes a straight rod body, which is fixedly connected to the lower end of the bottom support arm, and a linear groove is provided on the straight rod body, and a guide wheel is installed in the linear groove.

[0012] Furthermore, there are at least two linear grooves, and the two linear grooves are arranged along the length direction of the straight rod body.

[0013] Furthermore, a positioning groove is provided on the angle display plate, the positioning groove is located on the extension line of the scale line, a locking screw is matched in the positioning groove, and the locking screw passes through the support arm.

[0014] Compared with the prior art, the beneficial effect of the utility model is that when welding a fillet weld, the angle between the welding gun head and the extension line of the abutment component can be adjusted by flipping the support arm, and then the abutment component is placed against the weld, and then the handheld laser welding gun body is controlled to move along the length direction of the fillet weld. During the movement, the angle between the welding gun head and the weld will not change, thereby ensuring the stability of the angle between the laser beam and the weld during welding and improving the welding forming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2This is a schematic diagram of the structure of the handheld laser welding gun body of the utility model;

[0017] Figure 3 This is a schematic diagram of the connection between the support arm and the indicator rod of the utility model;

[0018] Figure 4 This is a side structural schematic diagram of the support arm of the utility model;

[0019] Figure 5 This is a schematic diagram of the angle display disk structure of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the abutting component of the utility model;

[0021] Among them, 1-control cabinet, 2-handheld laser welding gun body, 3-cable, 4-support arm, 5-welding gun body, 6-welding gun head, 7-scale tube, 8-positioning buckle, 9-support arm, 10-rest component, 11-display mark, 12-angle display disk, 13-scale line, 14-marking line, 15-reference line, 16-bottom support arm, 17-positioning arm, 18-notch, 19-tension reset spring, 20-shaft rod, 21-positioning groove, 22-pull rod, 23-straight rod body, 24-guide wheel, 25-brush. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various configurations. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model. In the embodiment, the components of the embodiments of the application described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the application claimed for protection, but only represents the selected embodiments of the application.

[0023] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" 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 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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; it can be an electrical connection; it can be a hydraulic oil circuit connection; it can be directly connected or indirectly connected through an intermediate medium, and 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.

[0025] See also Figures 1 to 6 As shown, a handheld laser welding machine includes a control cabinet 1 and a handheld laser welding gun body 2. The handheld laser welding gun body 2 is connected to the control cabinet 1 through a cable 3. Casters are installed on the control cabinet 1, so that the control cabinet 1 can be moved to the welding construction area, and then the workpiece is welded by the handheld laser welding gun body 2. A vertically extending support arm 4 is also provided on the control cabinet 1. When the handheld laser welding gun body 2 is not used for welding, the handheld laser welding gun body 2 can be placed on the support arm 4.

[0026] Since it is necessary to maintain a certain angle between the laser beam and the weld during welding so that the weld can be better formed, an angle positioning device is installed on the handheld laser welding gun body 2. The handheld laser welding gun body 2 includes a welding gun body 5, a welding gun head 6 and a graduation tube 7. The welding gun head 6 is connected to the welding gun body 5 through the graduation tube 7. The angle positioning device includes a positioning buckle 8 assembled on the welding gun body 5. The positioning buckle 8 is sleeved on the welding gun body, and a top screw can be screwed on the positioning buckle 8. The top screw can penetrate the positioning buckle 8. When the top screw is tightened, the positioning buckle 8 can be tightly connected to the welding gun body 5. A support arm 9 is connected to the positioning buckle 8. A supporting component 10 is installed at the lower end of the support arm 9. The support arm 9 is axially connected to the positioning buckle 8, so that the support arm 9 can be flipped. A marking rod 11 is fixed to the upper end of the support arm 9. The marking rod 11 is parallel to the abutting component 10. When welding, the abutting component 10 is against the weld, and at this time, the extension line of the abutting component 10 intersects with the gun nozzle of the handheld laser welding gun body 2. At this time, the scale tube 7 on the handheld laser welding gun body 2 forms an upper angle α and a lower angle β with the abutting component 10 and the indicator rod 11 respectively. Since the abutting component 10 is parallel to the indicator rod 11, the angle values ​​of the upper angle α and the lower angle β are equal at this time, that is, the value of the lower angle β can be judged by observing the value of the upper angle α. At this time, since the abutting component 10 is against the weld, and the extension line of the abutting component 10 intersects with the gun nozzle of the handheld laser welding gun body 2, the value of the upper angle α is the angle formed by the laser beam and the weld. At this moment, locking the support arm 9 and the positioning buckle 8 locks the angle of the upper angle α. During the welding process, it is only necessary to keep the abutting component 10 against the weld to keep the beam angle stable during the welding process.

[0027] Specifically, an angle display disk 12 is provided between the support arm 9 and the positioning buckle 8, and a scale line 13 is provided on the angle display disk 12. A marking line 14 is provided on the display mark rod 11, and the marking line 14 is a long strip extending along the length direction of the display mark rod 11. At this time, a reference line 15 is provided on the scale tube 7, and the center of the angle display disk 12 is located on the extension line of the reference line. The extension line of the marking line 14 intersects with the reference line 15, and the intersection point is located on the center of the angle display disk 12. The reference line 15 is always aligned with the 0° scale on the angle display disk 12, so that when the support arm 9 is flipped and moved, the display mark rod 11 can be flipped and moved, and when the marking line on the display mark rod 11 is aligned with a scale line on the angle display disk 12, the scale displayed by the scale line at that location is the angle of the lower angle β, and then it can be locked to keep the angle unchanged.

[0028] The above-mentioned support arm 9 includes a bottom support arm 16 and a positioning arm 17. A notch 18 is provided at the upper end of the positioning arm 17, and the notch 18 extends downward from the upper end of the positioning arm 17. A through hole extending upward is provided at the lower end of the positioning arm 17, and the through hole is connected to the notch 18. The upper end of the bottom support arm 16 is inserted into the notch 18 via the through hole. A tension return spring 19 is provided in the notch 18 of the positioning arm 17. The tension return spring 19 is sleeved on the bottom support arm 16, and the upper end of the tension return spring 19 is connected to the bottom support arm 16, and the lower end of the tension return spring 19 is fixed in the notch 18 of the positioning arm 17, so that the support arm 9 has a telescopic structure. When welding, after the angle adjustment is completed, it is only necessary to place the abutting component 10 against the weld, and then hold the laser welding gun body 2 and press it downward until the gun nozzle contacts the weld, and then slide along the length direction of the weld to perform welding.

[0029] The above-mentioned positioning arm 17 is provided with a flat through hole. When the support arm 9 is connected to the positioning buckle 8, a horizontally extending shaft rod is provided on the positioning buckle 8, and the positioning buckle 8 is located in the notch 18 on the positioning arm 17, and the shaft rod passes through the flat through hole. At the same time, the angle display disk 12 is fixed on the shaft rod 20. At this time, the angle display disk 12 is located in the notch on the positioning arm, and the angle display disk 12 is fixedly connected to the positioning buckle 8. A positioning groove 21 is provided on the angle display disk 12. The positioning groove 21 is located on the extension line of the scale line 13. A threaded hole is also provided on the positioning arm 17. The threaded hole is arranged parallel to the flat through hole. A locking screw is screwed in the threaded hole. When the marking line on the indicator rod 11 is aligned with a certain scale line, the threaded hole corresponds to a certain positioning groove 21. At this time, the locking screw can be screwed until its end is located in the positioning groove 21 to complete the angle locking.

[0030] The positioning arm 17 is vertically connected to the marker rod 11, and the extension line of the marker rod 11 intersects with the flat through hole. There are two marker rods 11, and the two marker rods 11 are arranged in parallel. A plurality of pull rods 22 are connected between the two marker rods 11 to increase the connection stability between the two marker rods 11.

[0031] In addition, the abutting component 10 in the present embodiment includes a cylindrical straight rod body 23, which is fixedly connected to the lower end of the bottom support arm 16, and at least two linear grooves are arranged on the straight rod body 23, and the two linear grooves are arranged along the length direction of the straight rod body 23. A guide wheel 24 is installed in each linear groove, and a part of the guide wheel 24 is exposed outside the linear groove. When the abutting component 10 is pressed against the weld, the edge of the guide wheel 24 contacts the weld. At the same time, bristles 25 are arranged on the straight rod body 23. During the welding process, as the handheld laser welding gun body 2 is moved, the bristles 25 clean the weld area, and then the nozzle of the handheld laser welding gun body 2 passes through the cleaned weld area, thereby reducing the influence of debris on the welding quality.

[0032] The angle positioning device is detachably connected to the welding gun body. When a specific welding angle is not required, the angle positioning device can be removed for easy use.

[0033] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A handheld laser welding machine, comprising a handheld laser welding gun body, the handheld laser welding gun body is connected to a control cabinet through a cable, characterized in that: The handheld laser welding gun body is provided with a positioning buckle, the positioning buckle is axially connected to a flippable support arm, the support arm has a telescopic structure, a marker rod is fixed to the upper end of the support arm, and a support component is connected to the lower end of the support arm, the support component is against the weld and is parallel to the marker rod; The positioning buckle is also provided with an angle display plate, the angle display plate has scale lines, and a marking line is provided on the marking rod.

2. A handheld laser welding machine according to claim 1, characterized in that: The support arm comprises a bottom support arm and a positioning arm. A notch is arranged at the upper end of the positioning arm. The notch extends downward from the upper end of the positioning arm. The positioning buckle is located in the notch. The indicator rod is vertically connected to the positioning arm.

3. A handheld laser welding machine according to claim 2, characterized in that: The lower end of the positioning arm is provided with a through hole extending upward, the through hole is communicated with the notch, the upper end of the bottom support arm is inserted into the notch through the through hole, and the abutment component is connected to the lower end of the bottom support arm.

4. A handheld laser welding machine according to claim 2 or 3, characterized in that: A stretching reset spring is sleeved on the bottom support arm, the upper end of the stretching reset spring is connected to the bottom support arm, and the lower end of the stretching reset spring is fixed in the notch of the positioning arm.

5. A handheld laser welding machine according to claim 1 or 3, characterized in that: The abutting component comprises a straight rod body, which is fixedly connected to the lower end of the bottom support arm. A linear groove is arranged on the straight rod body, and guide wheels are arranged in the linear grooves.

6. The handheld laser welding machine according to claim 5, characterized in that: There are at least two linear grooves, which are arranged along the length direction of the straight rod body.

7. The handheld laser welding machine according to claim 1, characterized in that: The angle display plate is provided with a positioning groove, which is located on the extension line of the scale line. A locking screw is matched in the positioning groove, and the locking screw passes through the support arm.

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