CN112372138A

CN112372138A - Laser welding machine

Info

Publication number: CN112372138A
Application number: CN202110059352.4A
Authority: CN
Inventors: 姚毅博; 李昕
Original assignee: Weifang Weirun Metal Technology Co ltd
Current assignee: Weifang Weirun Metal Technology Co ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-02-19

Abstract

The invention belongs to the technical field of welding machines, in particular to a laser welding machine, aiming at the technical problems that the smoke generated by welding cannot be effectively filtered by the existing laser welding machine, and workers can cause symptoms such as dizziness, headache, cough, chest distress, short breath and the like after inhaling the smoke for a long time, so that the health of the workers is greatly influenced, the laser welding machine provides the following scheme. According to the invention, the clamping mechanism is arranged to fixedly clamp the pipe through the clamping mechanism, smoke generated during welding can be sucked into the conical barrel from the air hole and then enters the filtering mechanism under the action of the air pump, and particles and harmful gas in the smoke can be effectively filtered under the action of the filtering mechanism.

Description

Laser welding machine

Technical Field

The invention relates to the technical field of welding machines, in particular to a laser welding machine.

Background

In laser welding, high-energy laser pulses are used for locally heating materials in micro-areas, energy radiated by laser is diffused into the materials through heat conduction, and the materials are melted to form a specific molten pool. The novel welding mode is mainly used for welding thin-wall materials and precise parts, spot welding, butt welding, stitch welding, seal welding and the like can be realized, the depth-width ratio is high, the width of a welding seam is small, a heat affected zone is small, deformation is small, the welding speed is high, the welding seam is flat and attractive, treatment is not needed or only simple treatment is needed after welding, the welding seam is high in quality, free of air holes, capable of being accurately controlled, small in focusing light spot, high in positioning accuracy and easy to realize automation.

A large amount of smoke dust is generated in the laser welding process, the smoke dust contains various toxic substances, such as formaldehyde, PM2.5, nitrogen oxides, hydrocarbons, carbon monoxide and the like, the smoke gas generated by welding cannot be effectively filtered by the conventional laser welding machine, and the symptoms of dizziness, headache, cough, chest distress, short breath and the like can be caused after workers inhale the smoke dust for a long time, so that the health of the workers is greatly influenced.

Disclosure of Invention

The invention provides a laser welding machine based on the technical problems that the existing laser welding machine cannot effectively filter smoke generated by welding, and workers can cause symptoms such as dizziness, headache, cough, chest distress, short breath and the like after inhaling smoke for a long time, so that the health of the workers is greatly influenced.

The invention provides a laser welding machine, which comprises a shell, wherein the top outer wall of the shell is fixedly connected with a supporting plate, the top outer wall of the shell is provided with an air hole penetrating through the supporting plate, the top outer wall of the supporting plate is respectively and fixedly connected with a vertical plate and a folded plate, the outer wall of one side of the vertical plate is fixedly connected with a motor, one end of an output shaft of the motor is fixedly connected with a clamping mechanism, the outer wall of one side of the folded plate is fixedly connected with a hydraulic rod, one end of a piston rod of the hydraulic rod is provided with a laser generator, an auxiliary supporting mechanism is arranged above the supporting plate, the top inner wall of the shell is fixedly connected with a conical cylinder, the outer wall of the bottom of the conical cylinder is provided with a first mounting hole, the inner wall of the first mounting hole is fixedly connected with an air inlet, the inside of casing is provided with filtering mechanism.

Preferably, the filtering mechanism comprises a filtering box, the filtering box is fixed inside the shell, the air outlet pipe is communicated with the filtering box, the bottom outer wall of the filtering box is fixedly connected with a collecting box, the top outer wall of the collecting box and the bottom outer wall of the filtering box are provided with the same through groove, and a filtering plate is arranged inside the filtering box.

Preferably, the inner wall fixedly connected with cross of rose box, and one side outer wall of cross is connected with pivot one through the bearing, the one end fixedly connected with flabellum of pivot one, the other end fixedly connected with cam of pivot one, the top inner wall fixedly connected with spring one of rose box, the soft brush of one end fixedly connected with of spring one, one side outer wall fixedly connected with cooperation piece of soft brush, cooperation piece and cam contact.

Preferably, the inner wall of the filter box is connected with a second rotating shaft through a bearing, the outer wall of the second rotating shaft is fixedly connected with wind blades distributed at equal intervals, one end of the second rotating shaft is fixedly connected with a rotating disc, the outer wall of one side of the rotating disc is hinged with a connecting rod, one end of the connecting rod is hinged with a sliding block, a guide rail is arranged in the filter box, and the guide rail and the sliding block form sliding fit.

Preferably, the inside fixedly connected with active carbon box of rose box, and one side outer wall fixedly connected with of slider run through the dead lever of active carbon box, a plurality of montants of top outer wall fixedly connected with of dead lever, the outer wall fixedly connected with equidistant spring two that distribute of montant, and the one end fixedly connected with ball of spring two.

Preferably, the bottom outer wall of dead lever is provided with the rack, and the inner wall of activated carbon box is connected with a plurality of poking bars through the bearing, and the gear has been cup jointed to the outer wall of poking bar, and gear and rack mesh mutually, and mounting hole two has been seted up to one side outer wall of rose box, and the inner wall fixedly connected with muffler of mounting hole two, muffler run through in the folded plate, and the one end of muffler is pegged graft and is had the gas shower nozzle.

Preferably, the clamping mechanism includes the chucking frame, and the outer wall of chucking frame sets up mounting hole three that the equidistance distributes, the inner wall fixedly connected with telescopic link of mounting hole three, the piston rod one end fixedly connected with fixed ring board of telescopic link, one side outer wall fixedly connected with spring three that the equidistance distributes of fixed ring board, the one end fixedly connected with clamp plate of spring three, the material of clamp plate is rubber, one side outer wall of clamp plate is provided with the antiskid arch that the equidistance distributes.

Preferably, the auxiliary supporting mechanism includes the rectangle frame, and the rectangle frame is fixed in the top outer wall of backup pad, the both sides inner wall of rectangle frame is connected with the lead screw through the bearing, the lead screw is opposite to both sides screw thread direction from the centre, the outer wall of lead screw has the regulating plate of symmetric distribution through threaded connection, the top inner wall of rectangle frame is provided with the spout, the equal sliding connection in inner wall both sides of spout has the rectangular block, rectangular block and regulating plate fixed connection, the bottom inner wall of rectangle frame and the equal fixedly connected with rectangle section of thick bamboo of one side outer wall of regulating plate, the bottom inner wall fixedly connected with spring of a rectangle section of thick bamboo is four, the one end fixedly connected with movable block of spring four, the movable block becomes sliding fit with the rectangle section of thick bamboo, the top outer.

The beneficial effects of the invention are as follows:

1. this laser-beam welding machine, through being provided with chucking mechanism, carry out interim fixing earlier two tubular products of welding through the mode of spot welding, at the fixed chucking through chucking mechanism, then the one end of its tubular product is fixed to supplementary supporting mechanism of rethread, carry out the welding operation, the flue gas that produces during the welding is under the effect of air pump, can follow the gas pocket and inhale a toper section of thick bamboo and then enter into filter equipment, under filter equipment's effect, can carry out an effectual filtration to granule and harmful gas in the flue gas, staff's health guarantee has been improved.

2. According to the laser welding machine, the auxiliary supporting mechanism is arranged, the supporting roller below the auxiliary supporting mechanism can support the lower portion of a pipe, the screw rod is rotated to enable the adjusting plate to move relatively and close to the screw rod, the supporting roller on one side of the adjusting plate supports two sides of the pipe, the supporting roller is supported to be flexible under the action of the spring, damage to the outer wall of the pipe is prevented, and therefore the fact that the other end of the pipe is not supported and deformed during welding can be guaranteed.

3. This laser-beam welding machine, through being provided with the air pump, the air pump is taken the air in the toper section of thick bamboo out and is arranged in the rose box, the flabellum receives the effect of wind and can rotates down, and then the cam action that makes a pivot one end cooperates the piece, and the soft brush reciprocating motion about will under the effect of spring one and cam, just can carry out one to the particulate matter on the filter and clear away, will fall into to the collection incasement from leading to the groove under the action of gravity, just so can be to the automatic clearance of filter, need not electric power, only need regularly clear up the collecting box can.

4. This laser-beam welding machine, through being provided with wind-force blade, the air current that flows in the rose box blows on wind-force blade when, under the effect of wind power, will drive two rotations of pivot, and then make the carousel rotate, according to the slider-crank principle, the carousel acts on the connecting rod just can make the slider along guide rail round trip movement, the dead lever is installed to the slider, rack on the dead lever acts on the gear, will make the poking bar rotate, activated carbon box internal lower part activated carbon particle will carry out a stirring like this, and the ball of poking bar top, just can carry out a drive stirring to activated carbon box internal upper part's activated carbon particle under spring two's effect, just can fully contact with inside activated carbon particle when welded flue gas passes through activated carbon box, thereby adsorb harmful gas, purifying effect has been improved.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

Fig. 1 is a schematic overall structure diagram of a laser welding machine according to the present invention;

fig. 2 is a schematic structural diagram of a housing of a laser welding machine according to the present invention;

fig. 3 is an enlarged schematic structural diagram of a laser welding machine according to the present invention at a point a;

fig. 4 is an enlarged schematic structural diagram of a laser welding machine according to the present invention at B;

FIG. 5 is a schematic structural view of a clamping frame of a laser welding machine according to the present invention;

fig. 6 is a schematic structural diagram of a rectangular frame of a laser welding machine according to the present invention.

In the figure: 1. a housing; 2. a support plate; 3. air holes; 4. a vertical plate; 5. a motor; 6. clamping the frame; 7. a telescopic rod; 8. folding the plate; 9. a hydraulic lever; 10. an air return pipe; 11. a rectangular frame; 12. a screw rod; 13. an adjusting plate; 14. a filter box; 15. a guide rail; 16. a slider; 17. a connecting rod; 18. a turntable; 19. a wind blade; 20. a collection box; 21. an air pump; 22. a tapered barrel; 23. an activated carbon box; 24. a fan blade; 25. a first spring; 26. soft brushing; 27. a filter plate; 28. a through groove; 29. a cam; 30. fixing the rod; 31. a ball; 32. a second spring; 33. a gear; 34. a stirring rod; 35. anti-skid projections; 36. a stationary ring plate; 37. a third spring; 38. pressing a plate; 39. a rectangular cylinder; 40. a fourth spring; 41. a support bar; 42. and supporting the roller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-6, a laser welding machine comprises a housing 1, a supporting plate 2 is fixedly connected to the outer wall of the top of the housing 1, an air hole 3 penetrating through the supporting plate 2 is formed in the outer wall of the top of the housing 1, a vertical plate 4 and a folded plate 8 are respectively and fixedly connected to the outer wall of the top of the supporting plate 2, a motor 5 is fixedly connected to the outer wall of one side of the vertical plate 4, a clamping mechanism is fixedly connected to one end of an output shaft of the motor 5, a hydraulic rod 9 is fixedly connected to the outer wall of one side of the folded plate 8, a laser generator is arranged at one end of a piston rod of the hydraulic rod 9, an auxiliary supporting mechanism is arranged above the supporting plate 2, a conical cylinder 22 is fixedly connected to the inner wall of the top of the housing 1, a first mounting hole is formed in the outer wall of the, and the output of air pump 21 is pegged graft and is had the outlet duct, the inside of casing 1 is provided with filtering mechanism, two tubular products that weld carry out interim fixing earlier through the mode of spot welding, at the fixed chucking of chucking through chucking mechanism, then the one end of its tubular product is fixed to supplementary supporting mechanism of rethread, welding operation carries out, the flue gas that produces during the welding is under the effect of air pump 21, can inhale a toper section of thick bamboo 22 from gas pocket 3 and then enter into filtering mechanism, under filtering mechanism's effect, can carry out an effectual filtration to granule and harmful gas in the flue gas.

In the invention, the filtering mechanism comprises a filtering box 14, the filtering box 14 is fixed inside the shell 1, the air outlet pipe is communicated with the filtering box 14, the outer wall of the bottom of the filtering box 14 is fixedly connected with a collecting box 20, the outer wall of the top of the collecting box 20 and the outer wall of the bottom of the filtering box 14 are provided with the same through groove 28, a filtering plate 27 is arranged inside the filtering box 14, and larger particles can fall into the collecting box 20 from the through groove when being on the filtering plate 27.

According to the invention, a cross is fixedly connected to the inner wall of the filter box 14, a first rotating shaft is connected to the outer wall of one side of the cross through a bearing, a fan blade 24 is fixedly connected to one end of the first rotating shaft, a cam 29 is fixedly connected to the other end of the first rotating shaft, a first spring 25 is fixedly connected to the inner wall of the top of the filter box 14, a soft brush 26 is fixedly connected to one end of the first spring 25, a matching block is fixedly connected to the outer wall of one side of the soft brush 26, the matching block is in contact with the cam 29, the fan blade 24 can rotate under the action of wind force, the cam 29 at one end of the rotating shaft acts on the matching block, and the soft brush 26 can reciprocate up and down under the action of the first spring.

According to the invention, the inner wall of the filter box 14 is connected with a second rotating shaft through a bearing, the outer wall of the second rotating shaft is fixedly connected with wind power blades 19 distributed at equal intervals, one end of the second rotating shaft is fixedly connected with a rotating disc 18, the outer wall of one side of the rotating disc 18 is hinged with a connecting rod 17, one end of the connecting rod 17 is hinged with a sliding block 16, a guide rail 15 is arranged inside the filter box 14, the guide rail 15 and the sliding block 16 form sliding fit, when air flow flowing in the filter box 14 blows on the wind power blades 19, the second rotating shaft is driven to rotate under the action of wind power, so that the rotating disc 18 rotates, and according to the crank sliding block principle, the rotating disc 18 acts.

In the invention, an activated carbon box 23 is fixedly connected inside the filter box 14, a fixing rod 30 penetrating through the activated carbon box 23 is fixedly connected to the outer wall of one side of the sliding block 16, a plurality of vertical rods are fixedly connected to the outer wall of the top of the fixing rod 30, springs 32 distributed at equal intervals are fixedly connected to the outer walls of the vertical rods, a round ball 31 is fixedly connected to one end of each spring 32, and the round ball 31 above a stirring rod 34 can drive and stir activated carbon particles at the upper part in the activated carbon box 23 under the action of the springs 32.

In the invention, a rack is arranged on the outer wall of the bottom of a fixed rod 30, the inner wall of an activated carbon box 23 is connected with a plurality of stirring rods 34 through bearings, a gear 33 is sleeved on the outer wall of each stirring rod 34, the gear 33 is meshed with the rack, a second mounting hole is formed in the outer wall of one side of a filter box 14, an air return pipe 10 is fixedly connected to the inner wall of the second mounting hole, the air return pipe 10 penetrates through a folded plate 8, an air spray head is inserted into one end of the air return pipe 10, a sliding block 16 can move back and forth along a guide rail 15 by acting on a connecting rod 17 through a turntable 18, the fixed rod 30 is arranged on the sliding block 16, the rack on the fixed rod 30 acts on the gear 33 to rotate the stirring rods 34, so that activated carbon particles at the lower part in the activated carbon box 23 can be stirred, welded flue gas can be fully contacted with the activated carbon particles in the activated carbon box, can cool the welding position, and can blow the flue gas downwards, which is more beneficial to the suction of the flue gas.

According to the invention, the clamping mechanism comprises a clamping frame 6, the outer wall of the clamping frame 6 is provided with three mounting holes which are distributed equidistantly, the inner wall of the three mounting holes is fixedly connected with an expansion link 7, one end of a piston rod of the expansion link 7 is fixedly connected with a fixed ring plate 36, the outer wall of one side of the fixed ring plate 36 is fixedly connected with three springs 37 which are distributed equidistantly, one end of each three spring 37 is fixedly connected with a pressing plate 38, the pressing plate 38 is made of rubber, the outer wall of one side of the pressing plate 38 is provided with anti-skidding protrusions 35 which are distributed equidistantly, the expansion link 7 is started, the pressing plate 38 clamps a pipe, the anti-skidding protrusions 35 on the pressing plate 38 can increase the clamping stability, and under the action of the three.

In the invention, the auxiliary supporting mechanism comprises a rectangular frame 11, the rectangular frame 11 is fixed on the outer wall of the top of the supporting plate 2, the inner walls of two sides of the rectangular frame 11 are connected with a screw rod 12 through a bearing, the screw rod 12 is opposite in thread direction from the middle to two sides, the outer wall of the screw rod 12 is connected with adjusting plates 13 which are symmetrically distributed through threads, the inner wall of the top of the rectangular frame 11 is provided with a sliding chute, two sides of the inner wall of the sliding chute are respectively connected with a rectangular block in a sliding way, the rectangular blocks are fixedly connected with the adjusting plates 13, the inner wall of the bottom of the rectangular frame 11 and the outer wall of one side of the adjusting plates 13 are respectively fixedly connected with a rectangular cylinder 39, the inner wall of the bottom of the rectangular cylinder 39 is fixedly connected with a spring IV 40, one end of the spring IV 40 is fixedly connected with a movable block, the support roller 42 of below can carry out a support to the below of tubular product, rotates lead screw 12 and makes regulating plate 13 relative movement be close to, makes the support roller 42 of regulating plate 13 one side support the both sides of tubular product, and under the effect of spring four 40, makes it support for flexible support, prevents to cause the damage to the outer wall of tubular product, can guarantee like this that tubular product other end does not support when the welding and takes place to warp.

The working principle is as follows: firstly, two pipes to be welded are temporarily fixed in a spot welding mode, then one end of the pipe is placed into the clamping frame 6, the telescopic rod 7 is started, the pressing plate 38 is enabled to clamp the pipe, the anti-skidding protrusions 35 on the pressing plate 38 can increase the clamping stability, the pipe cannot be deformed due to too large clamping force under the action of the spring III 37, in the rectangular frame 11, the lower supporting roller 42 can support the lower part of the pipe, the adjusting plate 13 is enabled to move relatively to be close to the adjusting plate 12 by rotating the screw rod 12, the two sides of the pipe are enabled to be supported by the supporting roller 42 on one side of the adjusting plate 13, the supporting roller is enabled to be flexibly supported under the action of the spring IV 40, the outer wall of the pipe is prevented from being damaged, the other end of the pipe is enabled not to be supported and deformed during welding, the hydraulic rod 9 is started, so that the laser generator is aligned to the proper position of, the pipe rotates to weld the periphery, the air pump 21 in the shell 1 works, smoke generated by welding can be sucked through the air hole 3 and enters the filter box 14 through the conical barrel 22, the fan blade 24 can rotate under the action of wind force, the cam 29 at one end of the rotating shaft acts on the matching block, the soft brush 26 can reciprocate up and down under the action of the spring one 25 and the cam 29, particles on the filter plate 27 can be removed, the soft brush can fall into the collecting box 20 from the through groove 28 under the action of gravity, so that the filter plate 27 can be automatically cleaned, when air flowing in the filter box 14 blows on the wind blades 19, the rotating shaft two can be driven to rotate under the action of the wind force, the rotating disc 18 rotates, according to the crank sliding block principle, the sliding block 16 can move back and forth along the guide rail 15 under the action of the rotating disc 18 on the connecting rod 17, the sliding block 16 is provided with the fixing rod 30, the rack on the dead lever 30 acts on gear 33, will make puddler 34 rotate, activated carbon particle of lower part will carry out a stirring in the activated carbon box 23 like this, and the ball 31 of puddler 34 top, just can carry out a drive stirring to the activated carbon particle of upper portion in the activated carbon box 23 under the effect of spring two 32, welded flue gas just can fully contact with inside activated carbon particle when passing through activated carbon box 23, thereby adsorb harmful gas, the gaseous air shower nozzle blowout from muffler 10 of air return pipe after purifying last, can cool down welding department, and can also blow the flue gas down, more do benefit to the suction of flue gas.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A laser welding machine comprises a shell (1), wherein a supporting plate (2) is fixedly connected to the outer wall of the top of the shell (1), an air hole (3) penetrating through the supporting plate (2) is formed in the outer wall of the top of the shell (1), a vertical plate (4) and a folded plate (8) are respectively and fixedly connected to the outer wall of the top of the supporting plate (2), a motor (5) is fixedly connected to the outer wall of one side of the vertical plate (4), a clamping mechanism is fixedly connected to one end of an output shaft of the motor (5), a hydraulic rod (9) is fixedly connected to the outer wall of one side of the folded plate (8), a laser generator is arranged at one end of a piston rod of the hydraulic rod (9), an auxiliary supporting mechanism is arranged above the supporting plate (2), a conical cylinder (22) is fixedly connected to the inner wall of the top of the shell (1, the inner wall fixedly connected with intake pipe of mounting hole one, and the one end of intake pipe is provided with air pump (21), the input and the intake pipe fixed connection of air pump (21), and the output of air pump (21) is pegged graft and is had the outlet duct, its characterized in that, the inside of casing (1) is provided with filtering mechanism.

2. The laser welding machine according to claim 1, characterized in that the filtering mechanism comprises a filtering box (14), the filtering box (14) is fixed inside the casing (1), the air outlet pipe is communicated with the filtering box (14), the bottom outer wall of the filtering box (14) is fixedly connected with a collecting box (20), the top outer wall of the collecting box (20) and the bottom outer wall of the filtering box (14) are provided with the same through groove (28), and a filtering plate (27) is arranged inside the filtering box (14).

3. The laser welding machine according to claim 2, characterized in that a cross is fixedly connected to the inner wall of the filter box (14), a first rotating shaft is connected to the outer wall of one side of the cross through a bearing, a fan blade (24) is fixedly connected to one end of the first rotating shaft, a cam (29) is fixedly connected to the other end of the first rotating shaft, a first spring (25) is fixedly connected to the inner wall of the top of the filter box (14), a soft brush (26) is fixedly connected to one end of the first spring (25), and a matching block is fixedly connected to the outer wall of one side of the soft brush (26) and is in contact with the cam (29).

4. The laser welding machine according to claim 2, characterized in that the inner wall of the filter box (14) is connected with a second rotating shaft through a bearing, the outer wall of the second rotating shaft is fixedly connected with wind blades (19) distributed at equal intervals, one end of the second rotating shaft is fixedly connected with a rotating disc (18), the outer wall of one side of the rotating disc (18) is hinged with a connecting rod (17), one end of the connecting rod (17) is hinged with a sliding block (16), a guide rail (15) is arranged inside the filter box (14), and the guide rail (15) and the sliding block (16) form sliding fit.

5. The laser welding machine according to claim 2, characterized in that the inside of the filter box (14) is fixedly connected with an activated carbon box (23), one side outer wall of the sliding block (16) is fixedly connected with a fixing rod (30) penetrating through the activated carbon box (23), the top outer wall of the fixing rod (30) is fixedly connected with a plurality of vertical rods, the outer wall of each vertical rod is fixedly connected with a second spring (32) which is distributed at equal intervals, and one end of each second spring (32) is fixedly connected with a round ball (31).

6. The laser welding machine according to claim 5, wherein a rack is arranged on the outer wall of the bottom of the fixing rod (30), the inner wall of the activated carbon box (23) is connected with a plurality of stirring rods (34) through bearings, gears (33) are sleeved on the outer walls of the stirring rods (34), the gears (33) are meshed with the rack, a second mounting hole is formed in the outer wall of one side of the filter box (14), an air return pipe (10) is fixedly connected to the inner wall of the second mounting hole, the air return pipe (10) penetrates through the folded plate (8), and an air nozzle is inserted into one end of the air return pipe (10).

7. The laser welding machine according to claim 1, characterized in that the clamping mechanism comprises a clamping frame (6), the outer wall of the clamping frame (6) is provided with three mounting holes distributed equidistantly, the inner wall of the three mounting holes is fixedly connected with a telescopic rod (7), one end of a piston rod of the telescopic rod (7) is fixedly connected with a fixed ring plate (36), the outer wall of one side of the fixed ring plate (36) is fixedly connected with three springs (37) distributed equidistantly, one end of the three springs (37) is fixedly connected with a pressing plate (38), the pressing plate (38) is made of rubber, and the outer wall of one side of the pressing plate (38) is provided with anti-skidding protrusions (35) distributed equidistantly.

8. The laser welding machine according to claim 1, wherein the auxiliary supporting mechanism comprises a rectangular frame (11), the rectangular frame (11) is fixed on the top outer wall of the supporting plate (2), the inner walls of the two sides of the rectangular frame (11) are connected with lead screws (12) through bearings, the screw threads of the lead screws (12) are opposite from the middle to the two sides, the outer wall of the lead screws (12) is connected with adjusting plates (13) which are symmetrically distributed through threads, the inner wall of the top of the rectangular frame (11) is provided with a sliding groove, the two sides of the inner wall of the sliding groove are both connected with rectangular blocks in a sliding manner, the rectangular blocks are fixedly connected with the adjusting plates (13), the inner wall of the bottom of the rectangular frame (11) and the outer wall of one side of the adjusting plates (13) are both fixedly connected with a rectangular cylinder (39), the inner wall of the bottom of the rectangular cylinder (39, the movable block and the rectangular cylinder (39) form sliding fit, the outer wall of the top of the movable block is fixedly connected with a supporting rod (41), and one end of the supporting rod (41) is provided with a supporting roller (42).