CN113369692A - Intelligent laser welding equipment for magnesium alloy plates - Google Patents

Abstract

The invention discloses intelligent laser welding equipment for magnesium alloy plates, and relates to the technical field of welding. In the sliding process of the second sliding frame, the gear rotates under the action of the tooth grooves on the inner side of the fixing strip, the gear rotates to drive the first rotating shaft to rotate through the driving belt, the first rotating shaft rotates to drive the blades to rotate, negative pressure of a certain degree is generated while the blades rotate, and then the impeller generates the negative pressure to suck out protective gas in the gas cylinder so that the protective gas is blown to a welding part of the laser welding head.

Description

Intelligent laser welding equipment for magnesium alloy plates

Technical Field

The invention relates to the technical field of welding, in particular to intelligent laser welding equipment for magnesium alloy plates.

Background

Laser welding is an efficient precision welding method using a laser beam with high energy density as a heat source, is one of important aspects of laser material processing technology application, is mainly used for welding thin-wall materials and low-speed welding, belongs to a heat conduction type welding process, namely, laser radiation heats the surface of a workpiece, surface heat is diffused inwards through heat conduction, the workpiece is melted to form a specific molten pool by controlling parameters such as the width, energy, peak power, repetition frequency and the like of laser pulse, and due to the unique advantages of the laser welding, the laser welding is successfully applied to precision welding of micro and small parts.

The magnesium alloy is an alloy formed by adding other elements into magnesium as a base, and is characterized by small density, high strength, large elastic modulus, good heat dissipation, good shock absorption, larger impact load bearing capacity than aluminum alloy, and good organic matter and alkali corrosion resistance, and the main alloy elements comprise aluminum, zinc, manganese, cerium, thorium, a small amount of zirconium or cadmium and the like.

The manual welding technology of electric arc is generally adopted for welding the magnesium alloy in the prior art, the efficiency is low, the product quality is poor, and when the magnesium alloy is welded through laser in the prior art, the welding position is often required to blow in protective gas for auxiliary welding, but the protective gas is required to be pressurized and blown out through an external air pump in the prior art, the protective gas cannot be blown out better automatically along with the movement of a laser welding head in the prior art, the welding movement speeds of the laser welding head for welding magnesium alloy plates with different thicknesses are different, the blowing speed and the blowing amount of the protective gas are required to be adjusted manually, the whole operation is troublesome, the use cost is increased through the air pump, the maintenance cost is also increased, the blowing amount of the protective gas is troublesome to adjust and control manually, and the adaptability is poor.

Disclosure of Invention

Based on the above, the invention aims to provide intelligent laser welding equipment for magnesium alloy plates, which solves the technical problems that in the prior art, the blowing speed and the blowing amount of shielding gas cannot be better controlled along with the welding moving speed of a laser welding head, and the use of an external air pump for blowing the shielding gas not only increases the use cost of the air pump, but also considers that the adjustment of the blowing amount of the air pump for the shielding gas is difficult to control.

In order to achieve the purpose, the invention provides the following technical scheme: the intelligent laser welding equipment for the magnesium alloy plates comprises a main body, wherein a fixed frame is fixedly connected to the top of one side of the main body, a first sliding frame is connected to the middle position inside the fixed frame in a sliding mode, and a laser welding head is arranged inside the first sliding frame;

the two ends of the inside of the fixed frame are both connected with second sliding frames of which the tail ends extend to the inner side of the fixed frame in a sliding manner, the tops of two groups of the second sliding frames are both fixedly provided with connecting pipes communicated with the inside of the second sliding frames, the four corners of the first sliding frame are fixedly connected with the two groups of the second sliding frames through connecting rods, the tail ends of the inside of the two groups of the second sliding frames are fixedly provided with supporting frames, the central position of the inside of each supporting frame is movably connected with a first rotating shaft, the tail end of the first rotating shaft is uniformly provided with a plurality of groups of blades, the top of one end of each second sliding frame is fixedly provided with a fixed block positioned in the fixed frame, and the inside of the fixed block is connected with a second rotating shaft in an inclined and rotating manner;

the fixed solid fixed ring that is provided with in second pivot end, be provided with the drive belt that runs through the second carriage between solid fixed ring and the first pivot, second pivot end fixedly connected with gear, the inside both ends of mount all fixedly are provided with the fixed strip, and are two sets of the terminal surface evenly sets up the tooth's socket with gear engaged with in the fixed strip.

By adopting the technical scheme, when the second sliding frame slides, the gear rotates under the action of the tooth grooves on the inner side of the fixed strips, the gear rotates to drive the first rotating shaft to rotate through the transmission belt, the first rotating shaft rotates to drive the moving blades to rotate, the blades rotate and generate negative pressure to a certain degree, because the top of the second sliding frame is provided with a connecting pipe communicated with an external corrugated pipe which is connected with an external gas cylinder for storing protective gas, the impeller generates negative pressure to suck out the protective gas in the gas cylinder and blow the protective gas to the welding position of the laser welding head, the speed of the laser welding head in the invention can adjust the speed of rotation of the gear under the action of the tooth space, and the speed of the blade blowing the shielding gas is increased or reduced, so that the speed and the blowing amount of the shielding gas do not need to be adjusted artificially according to different welding moving speeds.

The invention is further provided that the bottoms of the two ends of the fixing frame are fixedly connected with suckers, the two sides of two groups of suckers are fixedly connected with air cylinders, and the interiors of the four groups of air cylinders are slidably connected with telescopic clamping plates.

Through adopting above-mentioned technical scheme, the sucking disc not only can absorb the magnesium alloy panel top and press from both sides tightly, but also can press from both sides tight fixedly to the magnesium alloy panel terminal surface through flexible grip block.

The vacuum sucker is characterized in that two groups of suckers and four groups of telescopic clamping plates are communicated through flow dividing pipes, the tops of every two groups of flow dividing pipes are connected with main pipes which are communicated with each other, and a vacuum generator communicated with the two groups of main pipes is arranged at the bottom end in the main body.

By adopting the technical scheme, when the two groups of suckers absorb and fix the two groups of magnesium alloy plates, the four groups of telescopic clamping plates also contract under the action of negative pressure in the inflator, and then the four groups of telescopic clamping plates transversely clamp the two groups of magnesium alloy plates.

The invention is further arranged in that a motor is arranged in the middle position in the main body, two ends in the fixing frame are movably connected with screw rods penetrating through the first sliding frame, and the output end of the motor is connected with the tail ends of one sides of the two groups of screw rods through a synchronous belt.

Through adopting above-mentioned technical scheme, under the effect of motor, hold-in range and lead screw, can make first carriage drive laser welder head and carry out the steady movement and weld magnesium alloy panel.

The invention is further arranged in such a way that a rotating shaft penetrating through the first sliding frame is fixedly arranged at the middle position of the two ends of the laser welding head, and an angle adjusting screw matched with the laser welding head is movably arranged in one side of the first sliding frame.

By adopting the technical scheme, the laser welding head can rotate through the rotating shaft by rotating the angle adjusting screw rod, and the welding angle of the laser welding head is further adjusted.

The invention is further provided that the two ends of the bottom of the inner side of the fixed frame are fixedly provided with the protection plates, and the bottoms of the two groups of protection plates are fixedly provided with the rubber pads.

By adopting the technical scheme, when the laser welding head performs laser welding on the two groups of magnesium alloy plates, the generated sparks can not directly splash to the surfaces of the two groups of magnesium alloy plates, the quality of the rest surfaces of the magnesium alloy plates in the welding process is further improved, and the welding quality of the magnesium alloy plates is greatly improved.

The invention is further arranged in such a way that a first sliding groove matched with the first sliding frame is formed in the middle position inside the fixed frame, one ends of the two groups of second sliding frames are fixedly provided with limiting blocks extending into the fixed frame, and two ends inside the fixed frame are provided with second sliding grooves matched with the second sliding frames and the limiting blocks.

Through adopting above-mentioned technical scheme, make first carriage and second carriage more stable at the inside slip in-process of mount, can not take place to rock the phenomenon of skew.

The magnesium alloy plate lifting device is further provided with a bottom plate fixedly arranged on one side of the main body, electric push rods with upward output ends are fixedly arranged at four corners of the top of the bottom plate, the output ends of the tops of the four groups of electric push rods are fixedly connected with lifting plates, and two groups of magnesium alloy plates are arranged at two ends of the tops of the lifting plates.

Through adopting above-mentioned technical scheme, electric putter drives the lifter plate and can rises to the bottom of mount with magnesium alloy panel, and then fixes a position magnesium alloy panel.

The invention is further provided that the two ends of the top of the bottom plate, which are far away from one side of the main body, are both fixedly provided with positioning columns which penetrate through the lifting plate, and positioning holes which are matched with the positioning columns are arranged in the lifting plate.

Through adopting above-mentioned technical scheme, the setting up of reference column makes the lifter plate lift in-process more stable, can not take place the phenomenon of skew.

In summary, the invention mainly has the following beneficial effects:

1. the middle position in the fixed frame of the invention is connected with a first sliding frame in a sliding way, a laser welding head is arranged in the first sliding frame, and two ends in the fixed frame are connected with a second sliding frame in a sliding way, the second sliding frame slides along with the laser welding head simultaneously, and when the second sliding frame slides, a gear rotates under the action of a tooth socket on the inner side of a fixed strip, the gear rotates to drive a first rotating shaft to rotate through a transmission belt, the first rotating shaft rotates to drive a moving blade to rotate, and the blade rotates and simultaneously generates a certain degree of negative pressure, because the top of the second sliding frame is provided with a connecting pipe communicated with an external corrugated pipe, the external corrugated pipe is connected with an external gas cylinder for storing protective gas, and further the impeller generates negative pressure to suck out the protective gas in the gas cylinder, so that the protective gas is blown to the welding position of the laser welding head, the welding moving speed of the laser welding head of the invention is fast and slow, the speed of rotation of the gear can be adjusted under the action of the tooth grooves, and then the blowing speed of the blade to the shielding gas is increased or reduced, so that the blowing speed and the blowing amount of the shielding gas do not need to be adjusted manually according to different welding moving speeds;

2. the suction cups are fixedly connected to the bottoms of the two ends of the fixing frame and the air cylinders are connected to the four corners of the fixing frame, the four groups of air cylinders and the suction cups are mutually communicated through the flow dividing pipes by the main pipeline, and when the two groups of suction cups suck and fix two groups of magnesium alloy plates, the four groups of telescopic clamping plates are also contracted under the action of negative pressure in the air cylinders, and then the four groups of telescopic clamping plates transversely clamp the two groups of magnesium alloy plates;

3. according to the invention, the two ends of the bottom of the inner side of the fixing frame are fixedly provided with the protection plates positioned at the tops of the magnesium alloy plates, and the two groups of protection plates are positioned at the two ends of the welding line between the two groups of magnesium alloy plates, so that sparks generated when the laser welding head performs laser welding on the two groups of magnesium alloy plates can not directly splash to the surfaces of the two groups of magnesium alloy plates, the quality of the rest surfaces of the magnesium alloy plates in the welding process is further improved, and the welding quality of the magnesium alloy plates is greatly improved.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is an internal exploded view of the present invention;

FIG. 3 is an enlarged cross-sectional view of the present invention;

FIG. 4 is an enlarged view taken at A of FIG. 3 according to the present invention;

FIG. 5 is an enlarged partial structural view of the present invention;

FIG. 6 is an enlarged, partially exploded view of the present invention;

FIG. 7 is a schematic view of the internal structure of the present invention;

FIG. 8 is a schematic diagram of a first perspective structure according to the present invention;

FIG. 9 is a schematic diagram of a second perspective view of the present invention.

In the figure: 1. a main body; 2. a fixed mount; 3. a first carriage; 4. a laser welding head; 5. a rotating shaft; 6. a second carriage; 7. a connecting rod; 8. a connecting pipe; 9. a support frame; 10. a first rotating shaft; 11. a blade; 12. a fixed block; 13. a second rotating shaft; 14. a fixing ring; 15. a transmission belt; 16. a gear; 17. a fixing strip; 18. a tooth socket; 19. a limiting block; 20. a main pipeline; 21. a shunt tube; 22. a suction cup; 23. an air cylinder; 24. a telescopic clamping plate; 25. a vacuum generator; 26. a motor; 27. a screw rod; 28. a synchronous belt; 29. a first chute; 30. a second chute; 31. an angle adjusting screw; 32. magnesium alloy sheet material; 33. a protection plate; 34. a base plate; 35. an electric push rod; 36. a lifting plate; 37. and a positioning column.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following describes an embodiment of the present invention based on its overall structure.

An intelligent laser welding device for magnesium alloy plates is shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, and comprises a main body 1, wherein a fixed frame 2 is fixedly connected to the top of one side of the main body 1, a first sliding frame 3 is slidably connected to the middle position inside the fixed frame 2, a laser welding head 4 is arranged inside the first sliding frame 3, a motor 26 is installed at the middle position inside the main body 1, two ends inside the fixed frame 2 are movably connected with lead screws 27 penetrating through the first sliding frame 3, and the output end of the motor 26 is connected with the tail ends of one side of the two groups of lead screws 27 through synchronous belts 28;

the two ends of the inner part of the fixed frame 2 are both connected with a second sliding frame 6 with the end extending to the inner side of the fixed frame 2 in a sliding way, the middle position of the inner part of the fixed frame 2 is provided with a first sliding chute 29 matched with the first sliding frame 3, one end of two groups of second sliding frames 6 is fixedly provided with a limiting block 19 extending to the inner part of the fixed frame 2, the two ends of the inner part of the fixed frame 2 are provided with second sliding chutes 30 matched with the second sliding frames 6 and the limiting block 19, the tops of the two groups of second sliding frames 6 are both fixedly provided with connecting pipes 8 communicated with the inner part thereof, the four corners of the first sliding frame 3 and the two groups of second sliding frames 6 are both fixedly connected through connecting rods 7, the ends of the inner part of the two groups of second sliding frames 6 are fixedly provided with a supporting frame 9, the central position of the inner part of the supporting frame 9 is movably connected with a first rotating shaft 10, the ends of the first rotating shaft 10 are uniformly provided with a plurality of blades 11, the top of one end of the second sliding frame 6 is fixedly provided with a fixed block 12 positioned in the fixed frame 2, a second rotating shaft 13 is obliquely and rotatably connected inside the fixed block 12;

the tail end of the second rotating shaft 13 is fixedly provided with a fixing ring 14, a transmission belt 15 penetrating through the second sliding frame 6 is arranged between the fixing ring 14 and the first rotating shaft 10, the tail end of the second rotating shaft 13 is fixedly connected with a gear 16, two ends inside the fixing frame 2 are fixedly provided with fixing strips 17, tooth grooves 18 meshed with the gear 16 are uniformly formed in the inner end surfaces of the two groups of fixing strips 17, and then the blade 11 generates negative pressure to suck out protective gas inside the gas cylinder so that the protective gas is blown to a welding position of the laser welding head 4.

Referring to fig. 1, 7, 8 and 9, the bottom of each end of the fixing frame 2 is fixedly connected with a suction cup 22, each side of each of the two groups of suction cups 22 is fixedly connected with an air cylinder 23, each of the four groups of air cylinders 23 is slidably connected with a telescopic clamping plate 24, the two groups of suction cups 22 and the four groups of telescopic clamping plates 24 are communicated through a shunt tube 21, the top of each two groups of shunt tubes 21 is connected with a main tube 20 communicated with each other, and the bottom of the inside of the main body 1 is provided with a vacuum generator 25 communicated with the two groups of main tubes 20, by the arrangement of the above structure, the vacuum generator 25 generates suction force through the two groups of main tubes 20, because the four groups of air cylinders 23 and the suction cups 22 are communicated with each other through the shunt tubes 21, and then the two groups of suction cups 22 are contracted under the action of negative pressure inside the air cylinders 23 when the two groups of magnesium alloy plates 32 are sucked and fixed by the two groups of suction cups 22, and then the four groups of telescopic clamping plates 24 clamp the two groups of magnesium alloy plates 32 transversely.

Referring to fig. 1 and 2, a rotating shaft 5 penetrating through the first sliding frame 3 is fixedly arranged at the middle position of the two ends of the laser welding head 4, and an angle adjusting screw 31 matched with the laser welding head 4 is movably arranged inside one side of the first sliding frame 3.

Referring to fig. 2 and 3, the two ends of the bottom of the inner side of the fixing frame 2 are both fixedly provided with the protection plates 33, and the bottoms of the two groups of protection plates 33 are both fixedly provided with the rubber pads, by adopting the above structure, when the laser welding head 4 performs laser welding on the two groups of magnesium alloy plates 32, sparks generated by the laser welding head cannot directly splash onto the surfaces of the two groups of magnesium alloy plates 32, so that the quality of the rest surfaces of the magnesium alloy plates 32 in the welding process is further improved, and the welding quality of the magnesium alloy plates 32 is greatly improved.

Referring to fig. 1, 8 and 9, a bottom plate 34 is fixedly arranged on one side of a main body 1, electric push rods 35 with upward output ends are fixedly arranged at four corners of the top of the bottom plate 34, output ends of the tops of the four groups of electric push rods 35 are fixedly connected with lifting plates 36, two groups of magnesium alloy plates 32 are arranged at two ends of the tops of the lifting plates 36, two ends of the top of the bottom plate 34, which are far away from the main body 1, are fixedly provided with positioning columns 37 which penetrate through the lifting plates 36, and positioning holes matched with the positioning columns 37 are formed in the lifting plates 36.

The working principle of the invention is as follows: when the device is used, a power supply is switched on, two groups of magnesium alloy plates 32 needing to be welded are placed at two ends of the top of the lifting plate 36, then the lifting plate 36 is lifted under the action of the four groups of electric push rods 35 at the bottom of the lifting plate, so that the tops of the two groups of magnesium alloy plates 32 are close to the bottom of the fixed frame 2, then the top of the laser welding head 4 is connected with external laser welding equipment through an external lead, and the two groups of connecting pipes 8 are connected with an external gas cylinder for shielding gas through external corrugated pipes;

at this time, the vacuum generator 25 is started, the vacuum generator 25 generates suction force through the two groups of main pipes 20, the main pipes 20 communicate the four groups of air cylinders 23 and the suction cups 22 through the shunt pipes 21, and therefore when the two groups of suction cups 22 suck and fix the two groups of magnesium alloy plates 32, the four groups of telescopic clamping plates 24 are also contracted under the action of negative pressure inside the air cylinders 23, and further the four groups of telescopic clamping plates 24 transversely clamp the two groups of magnesium alloy plates 32;

the clamp of the integral magnesium alloy plate 32 has the advantages that the magnesium alloy plate 32 is clamped and fixed in all aspects, and an external clamp is not needed in the welding process, so that the problem that the position of a welding seam needs to be further positioned in the welding process is effectively solved;

after the two groups of magnesium alloy plates 32 are fixedly clamped, the motor 26 is started, the motor 26 drives the two groups of screw rods 27 to rotate in the same direction through the synchronous belt 28, the two groups of screw rods 27 rotating in the same direction drive the first sliding frame 3 to slide at the middle position inside the fixed frame 2, and then the laser welding head 4 welds the two groups of magnesium alloy plates 32;

furthermore, two ends inside the fixed frame 2 are connected with a second sliding frame 6 in a sliding manner, the second sliding frame 6 slides along with the laser welding head 4 at the same time, and when the second sliding frame 6 slides, the gear 16 rotates under the action of a tooth groove 18 inside the fixed strip 17, the gear 16 rotates to drive the first rotating shaft 10 to rotate through the driving belt 15, the first rotating shaft 10 rotates to drive the blade 11 to rotate, and the blade 11 rotates to generate a certain degree of negative pressure;

because the top of the second sliding frame 6 is provided with the connecting pipe 8 communicated with the external corrugated pipe, the external corrugated pipe is connected with the external gas cylinder for storing the shielding gas, and then the blade 11 generates negative pressure to suck out the shielding gas in the gas cylinder, so that the shielding gas is blown to the welding part of the laser welding head 4, the welding moving speed of the laser welding head 4 is high or low, the gear 16 can adjust the rotation speed under the action of the tooth grooves 18, and the blowing speed of the shielding gas by the blade 11 is increased or reduced, therefore, the blowing speed and the blowing amount of the shielding gas do not need to be adjusted manually according to different welding moving speeds;

further, the two ends of the bottom of the inner side of the fixing frame 2 are fixedly provided with the protection plates 33 positioned at the tops of the magnesium alloy plates 32, the two groups of protection plates 33 are positioned at the two ends of the welding seam between the two groups of magnesium alloy plates 32, and then when the laser welding head 4 performs laser welding on the two groups of magnesium alloy plates 32, the generated sparks cannot directly splash to the surfaces of the two groups of magnesium alloy plates 32, the quality of the rest surfaces of the magnesium alloy plates 32 in the welding process is further improved, and the welding quality of the magnesium alloy plates 32 is greatly improved.

Although embodiments of the present invention have been shown and described, it is intended that the present invention should not be limited thereto, that the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples, and that modifications, substitutions, variations or the like, which are not inventive and may be made by those skilled in the art without departing from the principle and spirit of the present invention and without departing from the scope of the claims.

Claims (9)

1. The utility model provides a magnesium alloy panel intelligence laser welding equipment, includes main part (1), its characterized in that: a fixed frame (2) is fixedly connected to the top of one side of the main body (1), a first sliding frame (3) is connected to the middle position inside the fixed frame (2) in a sliding mode, and a laser welding head (4) is arranged inside the first sliding frame (3);

two ends of the inner part of the fixed frame (2) are connected with second sliding frames (6) with the tail ends extending to the inner side of the fixed frame (2) in a sliding way, connecting pipes (8) communicated with the inner parts of the two groups of second sliding frames (6) are fixedly arranged at the tops of the two groups of second sliding frames (6), the four corners of the first sliding frame (3) are fixedly connected with the two groups of second sliding frames (6) through connecting rods (7), the inner tail ends of the two groups of second sliding frames (6) are fixedly provided with supporting frames (9), a first rotating shaft (10) is movably connected at the central position inside the supporting frame (9), a plurality of groups of blades (11) are uniformly arranged at the tail end of the first rotating shaft (10), a fixed block (12) positioned in the fixed frame (2) is fixedly arranged at the top of one end of the second sliding frame (6), a second rotating shaft (13) is obliquely and rotatably connected inside the fixed block (12);

second pivot (13) end is fixed and is provided with solid fixed ring (14), be provided with drive belt (15) that run through the second carriage between solid fixed ring (14) and first pivot (10), second pivot (13) end fixedly connected with gear (16), mount (2) inside both ends all are fixed and are provided with fixed strip (17), two sets of tooth's socket (18) of meshing mutually with gear (16) are evenly seted up to terminal surface in fixed strip (17).

2. The intelligent laser welding equipment for magnesium alloy plates according to claim 1, characterized in that: the bottom of the two ends of the fixing frame (2) is fixedly connected with suction cups (22), the two sides of each suction cup (22) are fixedly connected with air cylinders (23), and the interiors of the four air cylinders (23) are slidably connected with telescopic clamping plates (24).

3. The intelligent laser welding equipment for magnesium alloy plates according to claim 2, characterized in that: two sets of all be linked together through shunt tubes (21) between sucking disc (22) and the flexible grip block of four groups (24), every two sets of shunt tubes (21) top all is connected with trunk line (20) of mutual intercommunication, main part (1) inside bottom is provided with vacuum generator (25) that are linked together with two sets of trunk line (20).

4. The intelligent laser welding equipment for magnesium alloy plates according to claim 1, characterized in that: the utility model discloses a motor, including main part (1), mount (2), motor (26) are installed to inside intermediate position department of main part (1), the inside both ends of mount (2) all swing joint have lead screw (27) that run through first carriage (3), the end of motor (26) output and two sets of lead screw (27) one side is passed through hold-in range (28) and is connected.

5. The intelligent laser welding equipment for magnesium alloy plates according to claim 1, characterized in that: the laser welding head is characterized in that a rotating shaft (5) penetrating through the first sliding frame (3) is fixedly arranged in the middle of the two ends of the laser welding head (4), and an angle adjusting screw rod (31) matched with the laser welding head (4) is movably arranged inside one side of the first sliding frame (3).

6. The intelligent laser welding equipment for magnesium alloy plates according to claim 1, characterized in that: both ends of the bottom of the inner side of the fixed frame (2) are fixedly provided with a protective plate (33), and the bottoms of the two groups of protective plates (33) are fixedly provided with rubber pads.

7. The intelligent laser welding equipment for magnesium alloy plates according to claim 1, characterized in that: the utility model discloses a fixing frame, including mount (2), the inside intermediate position department of mount (2) sets up first spout (29) with first carriage (3) matched with, and is two sets of second carriage (6) one end is fixed and is provided with stopper (19) that extend to mount (2) inside, second spout (30) with second carriage (6) and stopper (19) matched with have been seted up at the inside both ends of mount (2).

8. The intelligent laser welding equipment for magnesium alloy plates according to claim 1, characterized in that: the magnesium alloy plate lifting device is characterized in that a bottom plate (34) is fixedly arranged on one side of the main body (1), four corners of the top of the bottom plate (34) are fixedly provided with electric push rods (35) with upward output ends, the four groups of electric push rods (35) are fixedly connected with lifting plates (36) at the top of the electric push rods, and two groups of magnesium alloy plates (32) are placed at the two ends of the top of the lifting plates (36).

9. The intelligent laser welding equipment for magnesium alloy plates according to claim 8, wherein the intelligent laser welding equipment comprises: the two ends of the top of the bottom plate (34) far away from one side of the main body (1) are fixedly provided with positioning columns (37) penetrating through the lifting plate (36), and positioning holes matched with the positioning columns (37) are formed in the lifting plate (36).

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