CN111644743A

CN111644743A - Laser welding blowing protection device for copper foil and stainless steel plate

Info

Publication number: CN111644743A
Application number: CN202010637512.4A
Authority: CN
Inventors: 汪敏
Original assignee: Changzhou Zhaosheng Automation Technology Co ltd
Current assignee: Changzhou Zhaosheng Automation Technology Co ltd
Priority date: 2020-07-05
Filing date: 2020-07-05
Publication date: 2020-09-11
Anticipated expiration: 2040-07-05
Also published as: CN111644743B

Abstract

The invention discloses a laser welding air blowing protection device for a copper foil and a stainless steel plate, which comprises a welding box and a fixing frame arranged on one side of the welding box, wherein a coaxial sleeve is arranged on the left side of the fixing frame, and the top and the bottom of the right side of the coaxial sleeve are fixedly connected with a connecting rod through connecting blocks. This copper foil and corrosion resistant plate's laser welding protection device that blows, blow inert gas in to coaxial sleeve through first trachea, and inert gas discharges from the venthole, realize blowing to welding light beam environment scope, reach the effect of coaxial blowing, utilize the second telescopic link to drive the skew mechanism simultaneously and remove, adjust the inclination of link, give vent to anger through the outlet duct and realize other axle side and blow, the effective unity of coaxial blowing and other axle side blowing has been realized like this, and the operation is simple, high durability and convenient use, can also be to the welding seam with the difference and use alternately, and then welding quality has been improved.

Description

Laser welding blowing protection device for copper foil and stainless steel plate

Technical Field

The invention relates to the technical field of laser welding, in particular to a laser welding air blowing protection device for a copper foil and a stainless steel plate.

Background

Laser welding is an efficient precision welding method using a laser beam with high energy density as a heat source. Laser welding is one of the important aspects of laser material processing technology application, and the welding process belongs to a heat conduction type, namely, laser radiation heats the surface of a workpiece, surface heat is diffused inwards through heat conduction, and 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 pulses. Due to the unique advantages, the welding method is successfully applied to the precise welding of micro and small parts.

In the process of welding the copper foil and the stainless steel plate, gas protection is an important influence factor, on one hand, partial metal surface plasma can be blown away under the condition of high-power welding, on the other hand, the protective gas can be covered above a molten pool, so that the oxidation of a welding seam is reduced, the gas blowing protection mode is divided into coaxial gas blowing and paraxial side gas blowing, the emphasis points of the two modes are different, paraxial good is used for a linear welding seam, and coaxiality good is used for a plane closed pattern, most of the conventional gas blowing protection devices are protected by independently utilizing the coaxial gas blowing or the paraxial side gas blowing mode, and the gas blowing protection cannot be performed in a targeted manner, so that the welding quality is influenced.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a laser welding air blowing protection device for copper foils and stainless steel plates, which solves the problems that the conventional air blowing protection device is protected by independently utilizing a coaxial air blowing or paraxial side air blowing mode, air blowing protection cannot be performed in a targeted mode, and welding quality is influenced.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a laser welding air blowing protection device for copper foils and stainless steel plates comprises a welding box and a fixing frame arranged on one side of the welding box, wherein a coaxial sleeve is arranged on the left side of the fixing frame, the top and the bottom of the right side of the coaxial sleeve are fixedly connected with a connecting rod through connecting blocks, first sliding holes matched with the connecting rod are formed in the surface of the fixing frame, an adjusting bolt is in threaded connection with the surface of the fixing frame and between the two first sliding holes, one end of the adjusting bolt is rotatably connected with the surface of the coaxial sleeve through a bearing, a first air pipe is communicated with the right side of the coaxial sleeve and between the connecting rod and the adjusting bolt, a second sliding hole matched with the first air pipe is formed in the surface of the fixing frame, a rotary groove is formed in the bottom of the right side of the fixing frame, a connecting frame is rotatably connected to the inner surface of the rotary groove, and a first telescopic, and the top of the first telescopic link push rod is fixedly connected with a paraxial air pipe box, the bottom of the fixing frame is fixedly connected with a second telescopic link, and the surface of the second telescopic link push rod is connected with the bottom of the connecting frame in a sliding mode through an offset mechanism.

Preferably, the offset mechanism comprises a first rotating block, a second rotating block and a slide way, the first rotating block and the second rotating block are rotatably connected through a pin, and the outer surface of the second rotating block is fixedly connected with the inner surface of the slide way.

Preferably, the surface of the second telescopic rod push rod is fixedly connected with one side of the first rotating block, and the slide way is fixedly installed at the bottom of the connecting frame.

Preferably, the top of the paraxial air tube box is communicated with a second air tube, one end of the second air tube is communicated with the inside of the first air tube, the bottom of the paraxial air tube box is communicated with an air outlet tube, and the surface of the connecting frame is provided with a third sliding hole matched with the air outlet tube.

Preferably, a first electromagnetic control valve for controlling the circulation of the first air pipe is arranged on the surface of the first air pipe and on the left side of the second air pipe.

Preferably, a second electromagnetic control valve for controlling the circulation of the second air pipe is arranged on the surface of the second air pipe.

Preferably, the number of outlet duct is provided with two, the second trachea adopts the rubber hose preparation to form, first trachea and outlet duct all adopt the steel pipe to make and form.

Preferably, the top of the coaxial sleeve is provided with a conical through hole, the bottom of the coaxial sleeve is provided with an air outlet, and the air outlet is inclined towards the focusing point of the welding box.

(III) advantageous effects

The invention provides a laser welding blowing protection device for a copper foil and a stainless steel plate. The method has the following beneficial effects:

(1) the laser welding blowing protection device for the copper foil and the stainless steel plate sheet comprises a first air pipe, a second sliding hole matched with the first air pipe is formed in the surface of a fixing frame, a rotary groove is formed in the bottom of the right side of the fixing frame, a connecting frame is rotatably connected to the inner surface of the rotary groove, a first telescopic rod is fixedly connected to the surface of the top of the connecting frame, a side shaft air pipe box is fixedly connected to the top of a first telescopic rod push rod, a second telescopic rod is fixedly connected to the bottom of the fixing frame, the surface of a second telescopic rod push rod is slidably connected with the bottom of the connecting frame through an offset mechanism, and the first air pipe, the second sliding hole, the rotary groove, the connecting frame, the first telescopic rod, the side shaft air pipe box, the second telescopic rod and the offset mechanism are matched to blow inert gas into the coaxial sleeve, and inert gas is discharged from the gas outlet, so that gas blowing in the welding beam environment range is realized, the coaxial gas blowing effect is achieved, meanwhile, the second telescopic rod is utilized to drive the deviation mechanism to move, the inclination angle of the connecting frame is adjusted, and the bypass side gas blowing is realized through gas outlet of the gas outlet pipe, so that effective unification of coaxial gas blowing and bypass side gas blowing is realized, the operation is simple, the use is convenient, interaction with different welding seams can be realized, and the welding quality is further improved.

(2) This copper foil and corrosion resistant plate sheet's laser welding protection device that blows, include first turning block through skew mechanism, second turning block and slide, rotate through the round pin post between first turning block and the second turning block and be connected, the surface of second turning block and the interior fixed surface of slide are connected, the surface of second telescopic link push rod and one side fixed connection of first turning block, slide fixed mounting is in the bottom of link, cooperate first turning block, the setting of second turning block and slide, the flexible paraxial trachea case that can adjust is relative to the height of link, guarantee that the paraxial side is given vent to anger when not using, can be through the extension of second telescopic link, adjust the slope height of link, make the minimum point of outlet duct be higher than the welding point of welding case, make things convenient for whole welding set's removal.

(3) This laser welding protection device that blows of copper foil and corrosion resistant plate piece, be provided with coaxial sleeve through the left side at the mount, top and the bottom on coaxial sleeve right side all are through connecting block fixedly connected with connecting rod, the first slide opening with connecting rod looks adaptation is seted up on the surface of mount, threaded connection has adjusting bolt between the surface of mount just is located two first slide openings, and adjusting bolt's one end passes through the bearing and is connected with coaxial sleeve surface rotation, the coaxial sleeve of cooperation, the connecting rod, the setting of first slide opening and adjusting bolt, it sets up coaxial sleeve to slide on the mount, it is spacing to utilize adjusting bolt to carry out, it is convenient to adjust, can guarantee that welding laser is in the toper through-hole, moreover, the steam generator is simple in structure, it is convenient to adjust, convenient device needle is installed to the welding case of.

Drawings

FIG. 1 is a schematic external view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of the coaxial sleeve of the present invention;

FIG. 4 is an enlarged schematic view of the structure of FIG. 1 at A according to the present invention;

FIG. 5 is a schematic diagram of the offset mechanism of the present invention.

In the figure, 1, a welding box; 2. a fixed mount; 3. a coaxial sleeve; 4. a connecting rod; 5. a first slide hole; 6. adjusting the bolt; 7. a first air pipe; 8. a second slide hole; 9. rotating the groove; 10. a connecting frame; 11. a first telescopic rod; 12. a paraxial gas tube box; 13. a second telescopic rod; 14. a biasing mechanism; 15. a first rotating block; 16. a second turning block; 17. a slideway; 18. a second air pipe; 19. an air outlet pipe; 20. a third slide hole; 21. a first solenoid control valve; 22. a second solenoid operated valve; 23. a tapered through hole; 24. and an air outlet.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an embodiment of the present invention provides a technical solution: the utility model provides a laser welding protection device that blows of copper foil and corrosion resistant plate piece, includes welding box 1 and sets up mount 2 in welding box 1 one side, its characterized in that: the left side of the fixing frame 2 is provided with a coaxial sleeve 3, the top of the coaxial sleeve 3 is provided with a conical through hole 23, the bottom of the coaxial sleeve 3 is provided with an air outlet 24, the air outlet 24 is inclined towards the focus point of the welding box 1, the top and the bottom of the right side of the coaxial sleeve 3 are both fixedly connected with a connecting rod 4 through connecting blocks, the surface of the fixing frame 2 is provided with a first sliding hole 5 matched with the connecting rod 4, the surface of the fixing frame 2 and positioned between the two first sliding holes 5 are in threaded connection with an adjusting bolt 6, one end of the adjusting bolt 6 is rotatably connected with the surface of the coaxial sleeve 3 through a bearing, the coaxial sleeve 3, the connecting rod 4, the first sliding hole 5 and the adjusting bolt 6 are matched, the coaxial sleeve 3 is arranged on the fixing frame 2 in a sliding manner, the adjusting bolt 6 is used for limiting, the adjustment is convenient, the structure is simple, the adjustment is convenient, the convenient device is installed aiming at welding boxes 1 of different models, a first air pipe 7 is communicated between a connecting rod 4 and an adjusting bolt 6 on the right side of a coaxial sleeve 3, a second sliding hole 8 matched with the first air pipe 7 is formed in the surface of a fixing frame 2, a rotary groove 9 is formed in the bottom of the right side of the fixing frame 2, a connecting frame 10 is rotatably connected to the inner surface of the rotary groove 9, a first telescopic rod 11 is fixedly connected to the surface of the top of the connecting frame 10, the first telescopic rod 11 is electrically connected with an external power supply and is controlled through a control switch, a side shaft air pipe box 12 is fixedly connected to the top of a push rod of the first telescopic rod 11, a second air pipe 18 is communicated to the top of the side shaft air pipe box 12, one end of the second air pipe 18 is communicated with the inside of the first air pipe 7, an air outlet pipe 19 is communicated to the bottom of the side shaft air pipe box 12, and a third sliding hole 20 matched, a first electromagnetic control valve 21 for controlling the circulation of the first air pipe 7 is arranged on the surface of the first air pipe 7 and on the left side of the second air pipe 18, the first electromagnetic control valve 21 is electrically connected with an external power supply and is controlled by a control switch, a second electromagnetic control valve 22 for controlling the circulation of the second air pipe 18 is arranged on the surface of the second air pipe 18, the second electromagnetic control valve 22 is electrically connected with the external power supply and is controlled by the control switch, two air outlet pipes 19 are arranged, the second air pipe 18 is made of rubber hoses, the first air pipe 7 and the air outlet pipe 19 are made of steel pipes, a second telescopic rod 13 is fixedly connected with the bottom of the fixed frame 2, the second telescopic rod 13 is electrically connected with the external power supply and is controlled by the control switch, and the surface of a push rod of the second telescopic rod 13 is slidably connected with the bottom of the connecting frame 10 through an, the first air pipe 7, the second slide hole 8, the rotary groove 9, the connecting frame 10, the first telescopic rod 11, the side shaft air pipe box 12, the second telescopic rod 13 and the offset mechanism 14 are matched, inert gas is blown into the coaxial sleeve 3 through the first air pipe 7 and is discharged from the air outlet hole 24, air blowing in the welding light beam environment range is achieved, the coaxial air blowing effect is achieved, meanwhile, the second telescopic rod 13 is utilized to drive the offset mechanism 14 to move, the inclination angle of the connecting frame 10 is adjusted, side shaft side air blowing is achieved through air outlet of the air outlet pipe 19, effective unification of coaxial air blowing and side shaft side air blowing is achieved, the operation is simple, the use is convenient, interaction use can be carried out on different welding seams, the welding quality is improved, the offset mechanism 14 comprises a first rotary block 15, a second rotary block 16 and a slide way 17, the first rotary block 15 is rotatably connected with the second rotary block 16 through a pin column, the surface of second turning block 16 and the internal surface fixed of slide 17 link to each other, the surface of second telescopic link 13 push rod and one side fixed connection of first turning block 15, slide 17 fixed mounting is in the bottom of link 10, cooperate first turning block 15, the setting of second turning block 16 and slide 17, can adjust the height of paraxial gas tube case 12 for link 10 through the flexible of first telescopic link 11, when guaranteeing that the paraxial side is given vent to anger not to use, can pass through the extension of second telescopic link 13, adjust the height of slope of link 10, make the minimum point of outlet duct 19 be higher than the welding point of welding case 1, make things convenient for whole welding set's removal.

When the coaxial gas blowing device is used, the fixing frame 2 is directly installed on one side of the welding box 1 through bolts, then the adjusting bolt 6 is rotated, the coaxial sleeve 3 moves relative to the fixing frame 2, the central perpendicular line of the conical through hole 23 is enabled to coincide with a focusing point of the welding box 1, in the process, the connecting rod 4 slides in the first sliding hole 5, the movement stability of the coaxial sleeve 3 is guaranteed, when a plane closed graph is welded, the first electromagnetic control valve 21 is directly opened, the second electromagnetic control valve 22 is closed, inert gas enters the coaxial sleeve 3 from the first gas pipe 7 and then is discharged through the gas outlet hole 24, coaxial gas blowing is achieved, at the moment, the first telescopic rod 11 and the second telescopic rod 13 are both in an extension limit state, the lowest point of the gas outlet pipe 19 is higher than a focusing point of a welding beam, when a linear welding line is carried out, the second telescopic rod 13 is firstly contracted, the first rotating block 15 is driven to enable the second rotating block 16 to slide in the slide way 17, so that the connecting frame 10 is inclined downwards, then the first telescopic rod 11 is contracted, the air outlet pipe 19 moves along the third slide hole 20, then the first electromagnetic control valve 21 is directly closed, the second electromagnetic control valve 22 is opened, inert gas enters the second air pipe 18 from the first air pipe 7, and is conveyed to the air outlet pipe 19 through the paraxial air pipe box 12 to be discharged, and paraxial side air blowing is achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a copper foil and stainless steel sheet's laser welding protection device that blows, includes welding box (1) and sets up mount (2) in welding box (1) one side, its characterized in that: the left side of the fixing frame (2) is provided with a coaxial sleeve (3), the top and the bottom of the right side of the coaxial sleeve (3) are fixedly connected with a connecting rod (4) through connecting blocks, the surface of the fixing frame (2) is provided with first sliding holes (5) matched with the connecting rod (4), the surface of the fixing frame (2) and the position between the two first sliding holes (5) are in threaded connection with an adjusting bolt (6), one end of the adjusting bolt (6) is rotationally connected with the surface of the coaxial sleeve (3) through a bearing, the right side of the coaxial sleeve (3) and the position between the connecting rod (4) and the adjusting bolt (6) are communicated with a first air pipe (7), the surface of the fixing frame (2) is provided with a second sliding hole (8) matched with the first air pipe (7), the bottom of the right side of the fixing frame (2) is provided with a rotary groove (9), the inner surface of the rotary groove (9) is rotationally connected, the surface of the top of the connecting frame (10) is fixedly connected with a first telescopic rod (11), the top of a push rod of the first telescopic rod (11) is fixedly connected with a paraxial air pipe box (12), the bottom of the fixing frame (2) is fixedly connected with a second telescopic rod (13), and the surface of the push rod of the second telescopic rod (13) is connected with the bottom of the connecting frame (10) in a sliding mode through an offset mechanism (14).

2. The laser welding blow protection device of copper foil and stainless steel plate according to claim 1, characterized in that: the offset mechanism (14) comprises a first rotating block (15), a second rotating block (16) and a slide way (17), the first rotating block (15) is rotatably connected with the second rotating block (16) through a pin, and the outer surface of the second rotating block (16) is fixedly connected with the inner surface of the slide way (17).

3. The laser welding blow protection device of copper foil and stainless steel plate according to claim 2, characterized in that: the surface of the push rod of the second telescopic rod (13) is fixedly connected with one side of the first rotating block (15), and the slide way (17) is fixedly installed at the bottom of the connecting frame (10).

4. The laser welding blow protection device of copper foil and stainless steel plate according to claim 1, characterized in that: the top of the paraxial air tube box (12) is communicated with a second air tube (18), one end of the second air tube (18) is communicated with the inside of the first air tube (7), the bottom of the paraxial air tube box (12) is communicated with an air outlet tube (19), and the surface of the connecting frame (10) is provided with a third sliding hole (20) matched with the air outlet tube (19).

5. The laser welding blow protection device of copper foil and stainless steel plate according to claim 4, characterized in that: and a first electromagnetic control valve (21) for controlling the circulation of the first air pipe (7) is arranged on the surface of the first air pipe (7) and on the left side of the second air pipe (18).

6. The laser welding blow protection device of copper foil and stainless steel plate according to claim 4, characterized in that: and a second electromagnetic control valve (22) for controlling the circulation of the second air pipe (18) is arranged on the surface of the second air pipe (18).

7. The laser welding blow protection device of copper foil and stainless steel plate according to claim 4, characterized in that: the number of outlet duct (19) is provided with two, second trachea (18) adopt the rubber hose preparation to form, first trachea (7) and outlet duct (19) all adopt the steel pipe to make and form.

8. The laser welding blow protection device of copper foil and stainless steel plate according to claim 1, characterized in that: the top of the coaxial sleeve (3) is provided with a conical through hole (23), the bottom of the coaxial sleeve (3) is provided with an air outlet (24), and the air outlet (24) is inclined towards the focusing point of the welding box (1).