A handheld laser welding machine

Abstract

The present invention discloses a handheld laser welding machine, which includes a machine body, a gripping part and a welding tube, wherein the welding tube is provided with a welding head, the welding tube is connected with a wire feeding frame, the machine body is rotatably connected with a right-angle block, the right-angle block is connected with a limit plug rod, the machine body is provided with a plurality of limit slots adapted to the limit plug rod, the right-angle block is connected with a connecting plate, both ends of the connecting plate along the length direction are provided with magnetic blocks perpendicular to the connecting plate, and one end of the magnetic block away from the connecting plate is rotatably connected with a first roller. The present application enables the operator to maintain the best welding angle for stable welding in an upward-looking state, which greatly improves the welding effect.

Description

Technical Field

[0001] The invention relates to the field of laser welding, in particular to a handheld laser welding machine. Background Art

[0002] The handheld laser welding machine is a highly efficient and precise welding equipment. It mainly uses a high-energy-density laser beam as a heat source, and cooperates with the welding wire to locally heat the workpiece, so that the workpiece is melted to form a specific molten pool, thereby achieving welding. The handheld laser welding machine has excellent characteristics such as simple operation and high welding precision, and can be applied to welding needs in multiple fields, such as sheet metal processing, machinery and equipment manufacturing, mold and metal equipment maintenance, etc.

[0003] In the related technology, the handheld laser welding machine is mainly composed of a laser unit and a welding unit, and has the characteristics of laser welding such as flexibility, high efficiency and high weld quality. During the welding process, turn on the laser power supply and wire feed switch, adjust the laser output power, aim the welding gun at the welding part, and focus the laser beam on the welding point for welding.

[0004] With regard to the above-mentioned related technologies, when a handheld laser welding machine is used to weld the welds of metal parts, when the metal weld is located above the operator's head, the operator needs to look up to perform the welding operation. During welding, the arm needs to be kept lifted for a long time. There is no support point, and stable welding is impossible. In addition, the weight of the handheld laser welding machine will also be applied to the operator's arm, which can easily cause the operator's arm to be sore and shaken, making the instability of the welding process more severe, and thus adversely affecting the welding effect. Summary of the invention

[0005] In order to enable operators to weld stably while looking up and improve welding effects, the present application provides a handheld laser welding machine.

[0006] The present application provides a handheld laser welding machine, which adopts the following technical solution:

[0007] A handheld laser welding machine comprises a machine body, a gripping part and a welding tube, wherein the welding tube is provided with a welding head, the welding tube is connected to a wire feeding rack, the machine body is rotatably connected to a right-angle block, the right-angle block is connected to a limiting plug rod, the machine body is provided with a plurality of limiting slots adapted to the limiting plug rod, the right-angle block is connected to a connecting plate, magnetic blocks perpendicular to the connecting plate are provided at both ends of the connecting plate along the length direction, and one end of the magnetic block facing away from the connecting plate is rotatably connected to a first roller.

[0008] By adopting the above technical solution, when the operator is welding in an upward-looking state, the connecting plate is adjusted to be perpendicular to the metal plane where the welding point is located, so that the first roller contacts the metal plane, and then the angle between the machine body and the connecting plate is adjusted to the optimal welding angle, and the limiting rod is inserted into the corresponding limiting slot to fix the angle between the machine body and the right-angle block; the magnetic attraction of the magnetic block on the metal plane reduces the gravity on the operator's arm and reduces the shaking of the arm; and the first roller moves along the metal plane, supported by the contact point between the first roller and the metal plane, which further improves the stability of the welding process, so that the operator can maintain the optimal welding angle for stable welding in an upward-looking state, thereby greatly improving the welding effect.

[0009] Optionally, a bidirectional cylinder is fixedly provided at one end of the connecting plate away from the right-angle block, and two output ends of the bidirectional cylinder are respectively fixedly connected to the magnetic blocks on both sides, and the end surfaces of the two magnetic blocks close to each other are rotatably connected to the second roller.

[0010] By adopting the above technical solution, when the metal plane where the welding point is located is narrow, the output end of the two-way cylinder contracts, driving the two magnetic blocks to approach each other, clamping the end face perpendicular to the metal plane where the welding point is located, and relying on the magnetic attraction of the magnetic block to the end face to reduce the gravity on the operator's arm. At the same time, the second roller contacts the end face and rolls on the end face along the welding direction, which can improve the stability of the welding process and ensure the welding effect.

[0011] Optionally, the right-angle block includes a horizontal plate and two vertical plates parallel to each other, the ends of the vertical plates facing away from the horizontal plate are rotatably connected to the machine body, and the ends of the vertical plates close to the horizontal plate are threadedly connected to the horizontal plate through a first bolt.

[0012] By adopting the above technical solution, when the operator performs welding operations in a top-down state, the first bolt is removed, the horizontal plate is moved to the bottom of the machine body, and the two vertical plates and the horizontal plate are connected together using the first bolt, and then the angle between the machine body and the connecting plate is adjusted to the optimal welding angle. The first roller contacts the plane where the welding point is located, which can improve the stability of welding in a top-down state.

[0013] Optionally, the transverse plate is rotatably connected to the connecting plate, the connecting plate is connected with a second bolt, and the transverse plate is provided with a plurality of screw holes adapted to the second bolt.

[0014] By adopting the above technical solution, when the welding path is relatively curved, after clamping it with the second roller, the second bolt is removed, the machine body is rotated, the welding head is rotated to the same bending angle as the welding path, and then moved for stable welding, which is beneficial to ensure the welding effect.

[0015] Optionally, the wire feeding rack includes a wire feeding tube and a clamping ring, the wire feeding tube is fixedly connected to the clamping ring, the clamping ring includes a left half ring and a right half ring, the left half ring and the right half ring are hinged, and the ends of the left half ring and the right half ring away from the hinge point are connected by a third bolt.

[0016] By adopting the above technical solution, the operator can remove the third bolt to adjust the angle of the clamping ring to avoid contact between the wire feeding frame and the connecting plate.

[0017] Optionally, the wire feeding rack also includes a wire feeding nozzle, which is threadedly connected to the wire feeding tube.

[0018] By adopting the above technical solution, wire feeding nozzles of different sizes can be replaced according to welding wires of different diameters, which is beneficial to improving the versatility of the handheld laser welding machine.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] When the operator is welding in an upward-looking state, the connecting plate is adjusted to be perpendicular to the metal plane where the welding point is located, so that the first roller contacts the metal plane, and then the angle between the machine body and the connecting plate is adjusted to the optimal welding angle, and the limiting rod is inserted into the corresponding limiting slot to fix the angle between the machine body and the right-angle block; the magnetic attraction of the magnetic block to the metal plane reduces the gravity on the operator's arm and reduces the shaking of the arm; and the first roller moves along the metal plane, with the contact point between the first roller and the metal plane as support, which further improves the stability of the welding process, so that the operator can maintain the optimal welding angle for stable welding in an upward-looking state, which greatly improves the welding effect;

[0021] When the metal plane where the welding spot is located is narrow, the output end of the bidirectional cylinder contracts, driving the two magnetic blocks to approach each other, clamping the end face perpendicular to the metal plane where the welding spot is located, relying on the magnetic attraction of the magnetic block on the end face to reduce the gravity on the operator's arm, and at the same time, the second roller contacts the end face and rolls on the end face in the welding direction, which can improve the stability of the welding process and ensure the welding effect;

[0022] After clamping by the second roller, the operator removes the second bolt, rotates the machine body, rotates the welding head to the same bending angle as the welding path, and then moves it for stable welding, which is beneficial to ensure the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a handheld laser welding machine according to an embodiment of the present application.

[0024] Figure 2 It is a schematic diagram of the operation of the embodiment of the present application when performing welding operation from an upward perspective.

[0025] Figure 3 This is a schematic diagram of the operation of the embodiment of the present application when looking down at the welding operation.

[0026] Explanation of the accompanying drawings: 1. Machine body; 2. Holding part; 3. Welding tube; 31. Welding head; 4. Wire feeding rack; 41. Wire feeding tube; 42. Clamping ring; 421. Left half ring; 422. Right half ring; 43. Third bolt; 44. Wire feeding nozzle; 6. Right-angle block; 61. Horizontal plate; 62. Vertical plate; 621. First bolt; 63. Limiting rod; 7. Connecting plate; 71. Bidirectional cylinder; 72. Second bolt; 8. Magnetic block; 81. First roller; 82. Second roller. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0028] The embodiment of the present application discloses a handheld laser welding machine. Example

[0029] Reference Figure 1 and Figure 2 A handheld laser welding machine includes a machine body 1, a gripping part 2 and a welding tube 3, wherein the two ends of the machine body 1 are respectively connected to the welding tube 3 and the gripping part 2. The welding tube 3 is provided with a welding head 31, and the welding tube 3 is connected to a wire feeding frame 4. The wire feeding frame 4 includes a wire feeding tube 41, a clamping ring 42 and a wire feeding nozzle 44, wherein the wire feeding tube 41 is fixedly connected to the clamping ring 42, and the wire feeding nozzle 44 is threadedly connected to the wire feeding tube 41. The wire feeding nozzles 44 of different sizes can be replaced according to welding wires of different diameters, thereby improving the versatility of the handheld laser welding machine.

[0030] Reference Figure 1 and Figure 2 , the machine body 1 is rotatably connected with a right-angle block 6, the right-angle block 6 is connected with a limit rod 63, the machine body 1 is provided with a plurality of limit slots adapted to the limit rod 63, the right-angle block 6 is connected with a connecting plate 7, and both ends of the connecting plate 7 along the length direction are provided with magnetic blocks 8 perpendicular to the connecting plate 7, and the end of the magnetic block 8 facing away from the connecting plate 7 is rotatably connected with a first roller 81. When the operator performs welding in an upward-looking state, the connecting plate 7 is located above the machine body 1, and the connecting plate 7 is adjusted to be perpendicular to the metal plane where the welding point is located, so that the first roller 81 contacts the metal plane, and then the angle between the machine body 1 and the connecting plate 7 is adjusted to the optimal welding angle, and the limit rod 63 is inserted into the corresponding limit slot to fix the angle between the machine body 1 and the right-angle block 6.

[0031] Reference Figure 1 and Figure 2When the operator performs the welding operation at an upward angle, the magnetic attraction of the magnetic block 8 to the metal plane reduces the gravity on the operator's arm and reduces the shaking of the arm during the welding process; and the first roller 81 moves along the metal plane, with the contact point between the first roller 81 and the metal plane as support, which further improves the stability of the welding process, allowing the operator to maintain the best welding angle for stable welding in the upward-looking state, greatly improving the welding effect.

[0032] Reference Figure 1 and Figure 2 When the metal plane where the welding point is located is narrow, the first roller 81 may be suspended in the air and unable to contact the metal plane; a two-way cylinder 71 is fixedly provided at one end of the connecting plate 7 away from the right-angle block 6, and the two output ends of the two-way cylinder 71 are respectively fixedly connected to the magnetic blocks 8 on both sides, and the end faces of the two magnetic blocks 8 close to each other are rotatably connected to the second roller 82.

[0033] Reference Figure 1 and Figure 2 The operator starts the bidirectional cylinder 71, and the output end of the bidirectional cylinder 71 contracts, driving the two magnetic blocks 8 to approach each other, thereby clamping the end face perpendicular to the metal plane where the welding point is located, relying on the magnetic attraction of the magnetic block 8 on the end face to reduce the gravity on the operator's arm, thereby reducing the shaking of the arm. At the same time, the second roller 82 contacts the end face and rolls on the end face along the welding direction, which can improve the stability of the welding process and ensure the welding effect. The bidirectional cylinder 71 and the second roller 82 can improve the versatility of the handheld laser welding machine.

[0034] Reference Figure 1 and Figure 3 When the operator performs welding in a top-down state, the connecting plate 7 needs to be moved to the bottom of the machine body 1; the right-angle block 6 includes a horizontal plate 61 and two vertical plates 62 parallel to each other. The ends of the vertical plates 62 facing away from the horizontal plate 61 are both rotatably connected to the machine body 1, and the ends of the vertical plates 62 close to the horizontal plate 61 are both threadedly connected to the horizontal plate 61 through the first bolt 621. The operator removes the first bolt 621, moves the horizontal plate 61 to the bottom of the machine body 1, and then uses the first bolt 621 to connect the two vertical plates 62 and the horizontal plate 61 together, and then adjusts the angle between the machine body 1 and the connecting plate 7 to the optimal welding angle, inserts the limiting rod 63 into the corresponding limiting slot to fix the angle between the machine body 1 and the right-angle block 6, and the first roller 81 contacts the plane where the welding point is located, which can improve the stability of welding in a top-down state and improve the versatility of the handheld laser welding machine.

[0035] Reference Figure 1 and Figure 3The horizontal plate 61 is rotatably connected to the connecting plate 7, the connecting plate 7 is connected with a second bolt 72, and the horizontal plate 61 is provided with a plurality of screw holes adapted to the second bolt 72. When the welding path is relatively curved, after clamping by the second roller 82, the operator removes the second bolt 72, rotates the machine body 1, rotates the welding head 31 to the same bending angle as the welding path, and then moves to perform stable welding, thereby ensuring the welding effect and improving the versatility of the handheld laser welding machine.

[0036] Reference Figure 1 and Figure 3 The clamping ring 42 includes a left half ring 421 and a right half ring 422, the left half ring 421 and the right half ring 422 are hinged, and the left half ring 421 and the right half ring 422 are connected at one end away from the hinge point by a third bolt 43. The operator can remove the third bolt 43 to adjust the angle of the clamping ring 42 to avoid contact between the wire feeding frame 4 and the connecting plate 7, thereby ensuring the normal welding operation of the operator.

[0037] The implementation principle of a handheld laser welding machine in the embodiment of the present application is as follows: when the operator is welding in an upward-looking state, the connecting plate 7 is located above the machine body 1, and the connecting plate 7 is adjusted to be perpendicular to the metal plane where the welding point is located, so that the first roller 81 contacts the metal plane, and then the angle formed by the machine body 1 and the connecting plate 7 is adjusted to the optimal welding angle, and the limiting rod 63 is inserted into the corresponding limiting slot to fix the angle formed by the machine body 1 and the right-angle block 6. The magnetic attraction of the magnetic block 8 to the metal plane reduces the gravity on the operator's arm and reduces the shaking of the arm during welding; and the first roller 81 moves along the metal plane, with the contact point of the first roller 81 and the metal plane For support, the stability of the welding process is further improved, so that the operator can maintain the best welding angle for stable welding in the upward state, which greatly improves the welding effect; when the metal plane where the welding point is located is narrow, the operator starts the two-way cylinder 71, and the output end of the two-way cylinder 71 contracts, driving the two magnetic blocks 8 to approach each other, and then clamping the end face perpendicular to the metal plane where the welding point is located, relying on the magnetic attraction of the magnetic block 8 to the end face to reduce the gravity on the operator's arm, thereby reducing the shaking of the arm, and at the same time the second roller 82 contacts the end face and rolls on the end face along the welding direction, which can improve the stability of the welding process and ensure the welding effect.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A handheld laser welding machine, comprising a machine body (1), a gripping portion (2) and a welding tube (3), wherein the welding tube (3) is provided with a welding head (31), and the welding tube (3) is connected to a wire feeding frame (4), characterized in that: The machine body (1) is rotatably connected to a right-angle block (6), the right-angle block (6) is connected to a limit plug rod (63), the machine body (1) is provided with a plurality of limit slots adapted to the limit plug rod (63), the right-angle block (6) is connected to a connecting plate (7), both ends of the connecting plate (7) along the length direction are provided with magnetic blocks (8) perpendicular to the connecting plate, one end of the magnetic block (8) facing away from the connecting plate (7) is rotatably connected to a first roller (81); a bidirectional cylinder (71) is fixedly provided at one end of the connecting plate (7) facing away from the right-angle block (6), and two output ends of the bidirectional cylinder (71) are respectively fixed to the magnetic blocks (8) on both sides. The right-angle block (6) comprises a horizontal plate (61) and two vertical plates (62) parallel to each other, the ends of the vertical plates (62) facing away from the horizontal plate (61) are both rotatably connected to the machine body (1), and the ends of the vertical plates (62) close to the horizontal plate (61) are both threadedly connected to the horizontal plate (61) through first bolts (621); the horizontal plate (61) is rotatably connected to the connecting plate (7), the connecting plate (7) is connected to the second bolts (72), and the horizontal plate (61) is provided with a plurality of screw holes matched with the second bolts (72).

2. A handheld laser welding machine according to claim 1, characterized in that: The wire feeding frame (4) comprises a wire feeding tube (41) and a clamping ring (42), the wire feeding tube (41) being fixedly connected to the clamping ring (42), the clamping ring (42) comprising a left half ring (421) and a right half ring (422), the left half ring (421) and the right half ring (422) being hinged, and the ends of the left half ring (421) and the right half ring (422) facing away from the hinge point are connected via a third bolt (43).

3. A handheld laser welding machine according to claim 2, characterized in that: The wire feeding frame (4) further comprises a wire feeding nozzle (44), and the wire feeding nozzle (44) is threadedly connected to the wire feeding tube (41).

Images