Laser welding head and laser welding machine thereof

Abstract

The utility model discloses a laser welding head and a laser welding machine thereof, relates to the laser welding field, including fixed plate and welding laser head, fixed plate along the height direction is fixed with slide rail, the slide rail is in slide fit with the lifting frame, the welding laser head is fixed on the lifting frame, the outside of welding laser head is provided with the protection mechanism, the protection mechanism is fixed on the lifting frame. The protection mechanism comprises a fixing ring, the fixing ring is arranged on the outer side of the welding laser head in a sleeved mode, a spring telescopic rod is embedded in the bottom end of the fixing ring, and in the actual operation of the device, before the welding laser head is not started, the fixing ring and the protection ring are connected in an attracted mode through corresponding magnets; a protective cylinder structure is formed on the outer side of the welding laser head through the fixing ring and the protective ring, the welding laser head is protected, meanwhile, the end of the welding laser head can stretch into the through opening, and external dust and water molecules are prevented from being attached to the welding laser head.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser welding field especially relates to a laser welding head and laser welding machine thereof. BACKGROUND

[0002] Laser welding is a kind of high-efficiency precision welding method using high-energy density laser beam as heat source.Laser welding is one of important aspects of laser material processing technology application.Laser welding process belongs to heat conduction type, that is, laser radiation heats workpiece surface, surface heat diffuses to interior through heat conduction, and heat is larger in laser source head part, in prior art, natural cooling mode is adopted, and efficiency is slower.

[0003] Therefore, it is necessary to provide a laser welding head and laser welding machine thereof for solving the above problems. UTILITY MODEL CONTENT

[0004] The utility model discloses a laser welding head and laser welding machine thereof, to solve the laser welding process belongs to heat conduction type, that is, laser radiation heats workpiece surface, surface heat diffuses to interior through heat conduction, and heat is larger in laser source head part, in prior art, natural cooling mode is adopted, and efficiency is slower.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a laser welding head, including fixed plate and welding laser head, the fixed plate is fixed with slide rail along the height direction, the slide rail is slidably connected with lifting frame, the welding laser head is fixed on the lifting frame, the welding laser head outside is provided with protection mechanism;

[0006] The protection mechanism includes fixed ring, the fixed ring is sleeved on the outside of welding laser head, spring telescopic rod is inlaid in the bottom end of fixed ring, the protection ring is connected to the bottom end of spring telescopic rod, the cavity is formed between the inner wall and the outside of protection ring, a plurality of air holes are formed in the inner wall of protection ring, the gas pump is fixed on the fixed plate, the gas pipe is fixedly connected between the gas pump and the cavity, the protection disc is fixed in the protection ring, and the through hole is formed in the middle of protection disc for the bottom end of welding laser head to extend.

[0007] Preferably, the welding laser head side is provided with electric push rod, the electric push rod is fixed on the fixed plate, the electric push rod bottom is connected with the connecting plate, and the connecting plate is fixedly connected with the lifting frame.

[0008] Preferably, the fixed ring and the protection ring opposite side are fixed with the magnet corresponding in position, and two magnets opposite side is adsorbed and connected.

[0009] In order to achieve the above object, the utility model provides the following technical scheme: the laser welding machine still includes the support frame, the support frame top end is equipped with the sliding slot along the length direction, the both ends of sliding slot inside are rotatably connected with the lead screw, the lead screw is matched with the moving block, the moving block top is fixed with the welding machine body, and the fixed plate is fixed to one end of the welding machine body.

[0010] Preferably, the welding machine body and the welding laser head are electrically connected, and the moving block is provided with a wire hole for the rotation of the lead screw.

[0011] Preferably, the support frame is fixed with a driving motor on one side, and the driving shaft of the driving motor is fixedly connected with one end of the lead screw.

[0012] The utility model discloses the beneficial technical effects are in: in the actual operation of the utility model, before the welding laser head is not used, the fixed ring and the protection ring are connected by corresponding magnet mutual adsorption, and the fixed ring and the protection ring form a protection cylinder structure on the outside of the welding laser head, and the welding laser head is protected, and the end of the welding laser head will be inserted into the inside of the through -opening, so that the dust and water molecules in the outside are avoided and adhere to the welding laser head. When the welding laser head is used, the protection ring can be separated from the fixed ring by pulling down the protection ring, and the plurality of air holes in the protection ring and the end of the welding laser head are corresponded at this time, when the air pump starts, the wind force can be blown to the welding laser head, and the end of the welding laser head is cooled, and when the welding laser head below has a welding object, the protection ring can be supported on the welding object, and according to the need of welding distance, the height of the protection ring can be changed by extruding the telescopic rod. DRAWINGS

[0013] Figure 1 It is the structure schematic diagram of the utility model laser welding head and laser welding machine thereof.

[0014] Figure 2 It is the structure schematic diagram of the utility model lead screw.

[0015] Figure 3 It is the structure schematic diagram of the utility model electric push rod.

[0016] Figure 4 It is the structure schematic diagram of the utility model through -opening.

[0017] Figure 5 It is the utility model Figure 1 It is the enlarged schematic diagram of A place in the utility model.

[0018] In the figure: 1, support frame; 2, drive motor; 3, sliding groove; 4, moving block; 5, welding machine body; 6, lead screw; 7, fixed plate; 8, welding laser head; 9, sliding rail; 10, electric push rod; 11, lifting frame; 12, air pump; 13, connecting plate; 14, air pipe; 15, fixed ring; 16, spring telescopic rod; 17, protective sleeve; 18, mouth; 19, air hole; 20, magnet, DETAILED DESCRIPTION

[0019] As Figure 1 - Figure 5 The utility model provides a laser welding machine, wherein the laser welding head includes fixed plate 7 and welding laser head 8, fixed plate 7 is fixed with sliding rail 9 along the height direction, sliding cooperation has lifting frame 11 on sliding rail 9, welding laser head 8 is fixed on lifting frame 11, and one side of welding laser head 8 is provided with electric push rod 10, electric push rod 10 is fixed on fixed plate 7, the bottom of electric push rod 10 is connected with connecting plate 13, and connecting plate 13 and lifting frame 11 are fixedly connected.

[0020] In the actual operation of the utility model, electric push rod 10 stretches downward, can drive lifting frame 11 and welding laser head 8 on lifting frame 11 to slide downward on sliding rail 9, when electric push rod 10 retracts, welding laser head 8 moves upward, thereby can adjust the height of welding laser head 8.

[0021] The utility model laser welding machine further includes support frame 1, support frame 1 top end is along length direction and is set with sliding groove 3, and the both ends between sliding groove 3 inside rotationally connected with lead screw 6, and the cooperation has moving block 4 on lead screw 6, and moving block 4 top end is fixed with welding machine body 5, and fixed plate 7 is fixed in one end of welding machine body 5.

[0022] Welding machine body 5 and welding laser head 8 are electrically connected, the wire hole for the rotation cooperation of lead screw 6 is set up on moving block 4, one side of support frame 1 is fixed with drive motor 2, and the driving shaft of drive motor 2 and one end of lead screw 6 are fixedly connected, in the actual operation of the utility model, drive motor 2 drives lead screw 6 to rotate after starting, thereby making moving block 4 drive welding machine body 5 move along the length direction of sliding groove 3.

[0023] Welding laser head 8 outside is provided with protection mechanism, and the protection mechanism can protect the end of welding laser head 8.

[0024] The protection mechanism comprises a fixing ring 15 sleeved outside the welding laser head 8, a spring telescopic rod 16 embedded in the bottom end of the fixing ring 15, a protection ring 21 connected to the bottom end of the spring telescopic rod 16, a cavity formed between the inner wall and the outer side of the protection ring 21, a plurality of air holes 19 formed in the inner wall of the protection ring 21, a gas pump 12 fixed on the fixing plate 7, a gas pipe 14 fixedly connected between the gas pump 12 and the cavity, a protection disc 17 fixed in the protection ring 21, and a through hole 18 formed in the middle of the protection disc 17 for the bottom end of the welding laser head 8 to extend out.

[0025] The fixing ring 15 and the protection ring 21 are fixed with corresponding magnets 20 on the opposite sides, and the two magnets 20 are connected by being attracted to each other on the opposite sides.

[0026] In the actual operation of the utility model, before the welding laser head 8 is used, the fixing ring 15 and the protection ring 21 are connected by being attracted to each other through the corresponding magnets 20, and a protection cylinder structure is formed outside the welding laser head 8 by the fixing ring 15 and the protection ring 21, so that the welding laser head 8 is protected, and the end of the welding laser head 8 extends into the through hole 18, so that dust and water molecules in the outside environment are prevented from adhering to the welding laser head 8,

[0027] Further, when the welding laser head 8 is used, the protection ring 21 can be pulled down to separate the protection ring 21 from the fixing ring 15, at this time, the plurality of air holes 19 in the protection ring 21 correspond to the end of the welding laser head 8, when the gas pump 12 is started, the wind can be blown to the welding laser head 8 to cool the end of the welding laser head 8, and when there is a welding object below the welding laser head 8, the protection ring 21 can be supported on the welding object, and according to the need of the welding distance, the spring telescopic rod 16 can be pressed to change the height of the protection ring 21.

Claims

1. A laser welded joint, characterized by: Including fixed plate (7) and welding laser head (8), the fixed plate (7) is fixed with slide rail (9) along the height direction, the slide rail (9) is slidably connected with lifting frame (11), the welding laser head (8) is fixed on the lifting frame (11), the welding laser head (8) is provided with a protection mechanism outside; The protection mechanism includes a fixed ring (15), the fixed ring (15) is sleeved outside the welding laser head (8), the fixed ring (15) is inlaid with a spring telescopic rod (16) at the bottom end, the spring telescopic rod (16) is connected with a protection ring (21) at the bottom end, a cavity is formed between the inner wall and the outer side of the protection ring (21), a plurality of air holes (19) are formed in the inner wall of the protection ring (21), a gas pump (12) is fixed on the fixed plate (7), a gas pipe (14) is fixedly connected between the gas pump (12) and the cavity, a protection disc (17) is fixed in the protection ring (21), a through hole (18) is formed in the middle of the protection disc (17) for the bottom end of the welding laser head (8) to extend out.

2. The laser weld joint of claim 1, wherein: The welding laser head (8) is provided with an electric push rod (10) on one side, the electric push rod (10) is fixed on the fixed plate (7), and the electric push rod (10) is connected with a connecting plate (13) at the bottom.

3. The laser weld joint of claim 1, wherein: The fixed ring (15) and the protection ring (21) are fixed with corresponding magnets (20) on opposite sides, and the two magnets (20) are connected by magnetic attraction on opposite sides.

4. A laser welding machine characterized by: The laser welding head comprises the laser welding head according to any one of claims 1-3, and further comprises a support frame (1), the support frame (1) is provided with a sliding groove (3) at the top end along the length direction, the sliding groove (3) is rotatably connected with a lead screw (6) between the two ends in the inside, the lead screw (6) is matched with a moving block (4), the moving block (4) is fixed with a welding machine body (5) at the top end, and the fixed plate (7) is fixed to one end of the welding machine body (5).

5. The laser welder of claim 4, wherein: The welding machine body (5) and the welding laser head (8) are electrically connected, and the moving block (4) is provided with a wire hole for the rotation of the lead screw (6).

6. The laser welder of claim 4, wherein: The support frame (1) is fixed with a driving motor (2) on one side, and the driving shaft of the driving motor (2) is fixedly connected with one end of the lead screw (6).

Images