CN211889449U - Laser wire feeding welding machine - Google Patents

Abstract

The utility model provides a laser send a welding machine belongs to the welding equipment field. It includes laser welder head main part, optical fiber head and optic fibre cable, and the below of laser welder head main part is provided with outer tube fixing base behind outer tube fixing base and the welding wire before the welding wire, is provided with the cell body behind the welding wire on the outer tube fixing base, is provided with laser shift knob and spring in the cell body, sets up the switch on this cell body and pulls the knot mechanism, and the switch is pulled the knot mechanism and is detained body, switching post and spacing post including pulling, the switching post with the switching hole rotates to be connected, pulls and detains this internal welding wire passageway that is provided with, and welding wire passageway internal fixation has the swing sleeve pipe, switching post and spacing post set up in the both sides of welding wire passageway, be provided with the. Compared with the prior art, the utility model discloses a structure can effectively avoid welding back welding wire and molten bath to bond to have the accurate and scalable advantage of molten bath of location simultaneously, have the welding efficient characteristics.

Description

Laser wire feeding welding machine

Technical Field

The utility model belongs to the welding equipment field particularly, relates to a laser send a welding machine.

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 the application of laser material processing techniques. The 20 th century and the 70 th century are mainly used for welding thin-wall materials and low-speed welding, and the welding process belongs to a heat conduction type, namely, the surface of a workpiece is heated by laser radiation, the 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, the energy, the peak power, the 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.

The existing laser welding is characterized in that a welding wire machine is utilized to feed wires to align to a workpiece to be welded, a welding gun performs laser heating on the welding wires to form a molten pool, and then the workpiece is welded. In view of this, the utility model provides a laser wire feeding welding machine.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a welding machine is sent to laser, its structural adoption optimal design can effectively avoid welding back welding machine and molten bath to bond to have the accurate and scalable advantage of molten bath of location simultaneously, have the welding efficient characteristics.

The utility model discloses a following technical scheme realizes:

a laser wire feeding welding machine comprises a laser welding head main body, an optical fiber head and an optical fiber cable, wherein the optical fiber cable is fixedly spliced with the laser welding head main body through the optical fiber head, a welding wire front outer tube fixing seat and a welding wire rear outer tube fixing seat are arranged below the laser welding head main body, a welding wire front outer tube is fixed on the welding wire front outer tube fixing seat, a welding wire rear outer tube is fixed on the welding wire rear outer tube fixing seat, a welding wire soft outer tube is sleeved on the welding wire rear outer tube, a groove body is arranged on the welding wire rear outer tube fixing seat, a laser switch button and a spring are arranged in the groove body, a switching hole is formed in the groove body, a switch pulling and buckling mechanism is rotatably connected to the switching hole and comprises a pulling and buckling body, a switching column and a limiting column, the switching column is rotatably connected to the switching hole, a welding wire, the welding wire passageway internal fixation has the swing sleeve pipe, switching post and spacing post set up in the both sides of welding wire passageway, be provided with the welding wire in outer tube before outer tube, swing sleeve pipe and the welding wire behind the welding wire.

As an optimal technical scheme, the front end of the laser welding main body is provided with an installation groove, a positioning tungsten tip is fixedly connected to the installation groove, and a welding wire through hole is formed in the positioning tungsten tip.

As a preferred technical scheme, the laser welding head main body comprises a shell, a laser channel is arranged in the shell, a reflector module is arranged at a corner of the shell, a rotating motor, a focusing mirror module and a protective mirror module are further arranged in the laser channel, and the focusing mirror module is connected with the rotating motor.

As a preferred technical scheme, the mirror module comprises a mirror fixing block and a mirror, the mirror fixing block is fixedly connected with the housing, and the mirror is arranged on the mirror fixing block.

As a preferred technical scheme, the shell is further provided with an embedding groove, and the protective glass module is embedded into the embedding groove and fixedly connected with the shell.

As a preferred technical scheme, the rotating motor comprises a motor main body and a rotating shaft, the rotating shaft is a hollow rotating shaft, the focusing lens module comprises a pressing ring, a first gasket, a focusing lens, a second gasket and a focusing lens barrel, the first gasket, the focusing lens and the second gasket are sequentially arranged in the focusing lens barrel and are limited by the pressing ring, the pressing ring is fixedly connected with the focusing lens barrel, and the focusing lens barrel is connected with the hollow rotating shaft.

As a preferred technical solution, the focusing lens is obliquely arranged relative to the focusing lens barrel, and an included angle is formed between a central line of the focusing lens and a central line of the focusing lens barrel.

Has the advantages that:

the utility model discloses a mechanism is pulled to the switch, swing sleeve and laser shift knob's structure setting, can avoid welding to accomplish the back welding wire and the molten bath bonds together, the welding wire is in time taken out from the effect of molten bath when playing to stop welding, in addition, the location tungsten tip can play fine welding position effect, improve the welded precision, because the slope setting of focusing mirror and focusing lens section of thick bamboo, the cooperation rotating electrical machines can form the big facula of equivalence, enlarge welding molten bath area, it is better to make big welding seam welding effect, have the accurate and extensible advantage of molten bath of location, the efficient characteristics of welding have.

Drawings

FIG. 1 is an exploded view of a laser wire feeder welder;

FIG. 2 is an exploded view of the laser welding head body of FIG. 1;

FIG. 3 is a structural assembly view of a laser wire feed weld;

FIG. 4 is a cross-sectional view of a laser wire feeder welder;

FIG. 5 is a schematic structural view of the outer tube fixing seat after welding;

FIG. 6 is a perspective view of the outer front tube of the welding wire and the switch trigger structure;

FIG. 7 is a cross-sectional view of the fiber tip and laser welding head body;

FIG. 8 is a detailed block diagram of the rotary motor and focusing mirror module of FIG. 7;

FIG. 9 is a schematic structural view of an included angle A formed between a central line B of the focusing lens and a central line C of the focusing lens barrel;

FIG. 10 is a schematic diagram of the laser after deflection;

FIG. 11 is a schematic view of the laser shifting in the other direction after the rotation of the rotary motor;

FIG. 12 is a schematic view of the principle that the light spot moves to form an equivalent large light spot after the rotating motor rotates;

fig. 13 is a schematic structural diagram of a second embodiment of positioning a tungsten tip.

The attached drawings are as follows:

1. an optical fiber cable; 2. an optical fiber head; 3. a laser welding head body; 4. the welding wire front outer tube fixing seat; 5. the welding wire rear outer tube is fixed on the base; 6. an outer front welding wire tube; 7. a rear outer tube for welding wires; 8. a welding wire soft outer tube; 9. a trough body; 10. a laser switch button; 11. a spring; 12. switching the hole; 13. a switch toggle mechanism; 14. a wrench body; 15. a transfer column; 16. a limiting column; 17. a welding wire channel; 18. swinging the casing; 19. welding wires; 20. mounting grooves; 21. positioning a tungsten tip; 22. a welding wire through hole; 23. a housing; 24. a laser channel; 25. a mirror module; 26. a rotating electric machine; 27. a focusing mirror module; 28. a protective glass module; 29. a reflector fixing block; 30. a reflective mirror; 31. a motor main body; 32. a rotating shaft; 33. a compression ring; 34. a first gasket; 35. a focusing mirror; 36. a second gasket; 37. a focus lens barrel; 38. a U-shaped groove; 100. light spots; A. an included angle; B. the central line of the focusing mirror; C. the center line of the focus lens barrel.

Detailed Description

For further disclosure and explanation of the technical solution of the present invention, a laser wire feeding welding machine is described in detail below with reference to the accompanying drawings.

It should be noted that the terms "upper", "inner", "middle", "left", "right" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the corresponding elements may be changed or adjusted without substantial technical changes, and the scope of the present invention may be considered to be the scope of the present invention.

Referring to fig. 1 to 6, the present invention provides a laser wire feeding welder, including a laser welding head main body 3, an optical fiber head 2 and an optical fiber cable 1, wherein the optical fiber cable 1 is inserted and fixed with the laser welding head main body 3 through the optical fiber head 2, a welding wire front outer tube fixing seat 4 and a welding wire rear outer tube fixing seat 5 are disposed below the laser welding head main body 3, a welding wire front outer tube 6 is fixed on the welding wire front outer tube fixing seat 4, a welding wire rear outer tube 7 is fixed on the welding wire rear outer tube fixing seat 5, a soft outer tube 8 is sleeved on the welding wire rear outer tube 7, a groove body 9 is disposed on the welding wire rear outer tube fixing seat 5, a laser switch button 10 and a spring 11 are disposed in the groove body 9, the laser switch button 10 can control the switch of laser, and control the wire feeder to start or stop feeding, a switch hole 12 is disposed on, the switch trip mechanism 13 is rotatably connected to the switch hole 12. it should be noted that, because the laser switch button 10 and the spring 11 are both arranged in the tank 9, the switch pull-buckle mechanism 13 is arranged on the groove body 9, when the switch pull-buckle mechanism 13 is pressed, the switch pull-buckle mechanism 13 can be sunk into the groove body 9 and is abutted against the laser switch button 10, when the switch pull-buckle mechanism 13 is loosened, due to the action of the spring 11, the switch triggering mechanism 13 can be bounced and reset, the switch triggering mechanism 13 comprises a triggering body 14, a switching column 15 and a limiting column 16, the switching post 15 is rotatably connected with the switching hole 12, a welding wire channel 17 is arranged in the wrench body 14, a swing sleeve 18 is fixed in the welding wire channel 17, the adapter column 15 and the limiting column 16 are arranged at two sides of the welding wire channel 17, and welding wires 19 are arranged in the welding wire rear outer tube 7, the swinging sleeve 18 and the welding wire front outer tube 6.

In operation, referring to fig. 3, as the switch trigger mechanism 13 is pulled by the operator, the swinging sleeve 18 swings with the switch trigger mechanism 13, so that the swinging sleeve 18 advances forward, and the welding wire 19 advances forward, because the switch trigger mechanism 13 is in two states, i.e. the length of the welding wire 19 between the outlet of the swinging sleeve 18 and the inlet of the welding wire front outer tube 6 is shorter when the switch trigger mechanism 13 is pressed, and the length of the welding wire 19 between the outlet of the swinging sleeve 18 and the inlet of the welding wire front outer tube 6 is longer when the switch trigger mechanism 13 is loosened, so that the welding wire 19 advances forward toward the inner side of the welding wire front outer tube 6 when the switch trigger mechanism 13 is pressed, and the welding wire 19 is exposed at the front end of the welding wire front outer tube 6, when the switch trigger mechanism 13 touches the laser switch button 10 and presses the button to start laser, the welding wire 19 machine starts wire feeding at the same time, and enters a working state, and the welding wire 19 and a workpiece are fused together by the laser during working; when the welding is finished, as the operator releases the switch trip mechanism 13, the switch trip mechanism 13 is sprung open by the spring 11, when the switch trigger mechanism 13 leaves the laser switch button 10, the welding wire 19 stops feeding, but at this time, because the laser system is in the delayed off setting, when the laser switch button 10 is released, the laser is turned off in a delayed way to avoid cooling of the molten pool so as to avoid the welding wire 19 from being stuck on the molten pool, and as the switch trigger mechanism 13 continues to swing, the swing sleeve 18 simultaneously swings towards the outside of the groove body 9, as the length of welding wire 19 between the outlet of wobble sleeve 18 and the inlet of outer pipe 6 before the wire is gradually longer, therefore, the welding wire 19 also contracts inwards relative to the welding wire front outer tube 6, so that the front end of the welding wire 19 is pulled out of the molten pool and retracts to a non-working state, the laser is closed in a delayed mode, the laser is closed, and the welding process is completed, so that the welding wire 19 and the molten pool are prevented from being bonded together.

Positioning of tungsten tip 21 embodiment one:

specifically, referring to fig. 2 and 5, an installation groove 20 is formed at the front end of the laser welding main body, a positioning tungsten tip 21 is fixedly connected to the installation groove 20, and a welding wire through hole 22 is formed in the positioning tungsten tip 21. During the laser wire feeding welding, the distance between the laser focus and the welding line 19 must be within a certain range, so as to ensure the welding stability and the correct welding position, therefore, a positioning device is needed during the welding, the positioning tungsten tip 21 can meet the requirements, the positioning tungsten tip 21 is made of tungsten, the tungsten has the characteristics of high hardness and high melting point, the head of the positioning tungsten tip 21 is provided with a sharp corner, and the sharp corner can slide along the thin seam, thereby playing a positioning role during the welding, meanwhile, the welding wire through hole 22 is arranged at the sharp corner, so that the welding wire 19 can conveniently extend into the sharp corner, the welding process is generally flat plate edge joint welding, inner angle welding, outer angle welding and the like, during the work, the positions among the workpieces are well set, the relative positions of the workpieces can be fixed by spot welding at two or more positions, and the adoption of the mode can avoid that the base metal is propped open when the sharp corner of the positioning tungsten, and then welding, wherein the tip of the positioning tungsten tip 21 slides along the joint during welding, so that the welding head moves and welds at the same time, the position is accurate, and the welding effect is stable.

Positioning tungsten tip 21 embodiment two:

specifically, referring to fig. 13, an installation groove 20 is disposed at the front end of the positioning laser welding main body, a positioning tungsten tip 21 is fixed on the installation groove 20, and a U-shaped groove 38 is further disposed on the positioning tungsten tip 21; as can be seen from fig. 13, the welding wire 19 protrudes a little from the positioning tungsten tip 21, so that the welding wire 19 can be positioned by the positioning tungsten tip 21 and can contact the material to be welded, and the wire feeding speed of the wire feeder can be used as an aid to adjust the speed of hand movement during welding.

Specifically, referring to fig. 7, the laser welding head body 3 includes a housing 23, a laser channel 24 is disposed in the housing 23, a mirror module 25 is disposed at a corner of the housing 23, a rotating motor 26, a focusing mirror module 27 and a protection mirror module 28 are further disposed in the laser channel 24, and the focusing mirror module 27 is connected to the rotating motor 26.

Specifically, referring to fig. 2, the mirror module 25 includes a mirror fixing block 29 and a mirror 30, the mirror fixing block 29 is fixedly connected to the housing 23, and the mirror 30 is disposed on the mirror fixing block 29.

Specifically, a caulking groove is further formed in the housing 23, and the protective mirror module 28 is embedded in the caulking groove and fixedly connected with the housing 23.

Specifically, referring to fig. 8, the rotating motor 26 includes a motor main body 31 and a rotating shaft 32, the rotating shaft 32 is a hollow rotating shaft, the focusing lens module 27 includes a pressing ring 33, a first gasket 34, a focusing lens 35, a second gasket 36 and a focusing lens barrel 37, the first gasket 34, the focusing lens 35 and the second gasket 36 are sequentially disposed in the focusing lens barrel 37 and are limited by the pressing ring 33, the pressing ring 33 is fixedly connected to the focusing lens barrel 37, and the focusing lens barrel 37 is connected to the hollow rotating shaft 32.

Specifically, referring to fig. 9, the focusing lens 35 is disposed obliquely relative to the focusing lens barrel 37, and a central line B of the focusing lens and a central line C of the focusing lens barrel form an included angle a.

It should be noted that the inclined arrangement of the focusing mirror 35 can be realized by arranging a height difference on two sides of the first washer 34 to form an inclined plane, the second washer 36 is adapted to the first washer 34, so that the first washer 34, the focusing mirror 35 and the second washer 36 are fixed in the head of the focusing mirror 35 while the clamping ring 33 is fixed with the focusing barrel 37, and the focusing mirror 35 is tightly attached to the inclined plane to form the included angle a, which is actually equal to an angle formed by a center line of the inclined plane of the first washer 34 and the horizontal direction.

Of course, the angle a may be formed by simply setting the focusing barrel 37 to be an inclined plane, and the focusing lens 35 is not inclined, which is not described herein again.

As is well known, the focusing mirror 35 can focus the laser, so that the energy is concentrated, the welded material and the welding wire 19 are melted during welding to form a specific molten pool, the molten metal fills the splicing seam and is condensed along with the removal of the laser, and the welding seam is formed, and in actual operation, because the light spot 100 from the focusing mirror 35 is emitted from the center line and has a fixed diameter, the area of the formed molten pool is small, the splicing seam of the material to be welded is required to be small, and the position accuracy of the light spot 100 irradiation is high, so that the use requirement can be met.

And the utility model discloses a focusing mirror 35 is at the during operation, as shown in fig. 10, 11 and 12, because the existence of above-mentioned contained angle A, when rotating electrical machines 26 rotates, laser can not follow the central line of laser welding head main part 3 and jet out, but the skew is to the position as the lower side in the picture, along with rotating electrical machines 26's fast rotation, facula 100 can rotate the skew along with rotating electrical machines 26, when laser shines the material, laser heats the material, although facula 100 can rotate along with rotating electrical machines 26, nevertheless because rotating electrical machines 26 rotates very fast and the radiating speed of material is slow, so be equivalent to facula 100 and always shine, be equivalent to facula 100 like this and strengthen, coincide with the principle of inching into the face, therefore shine the area and strengthen, the molten bath is corresponding also to strengthen, make big welding seam welding effect better.

The present invention is not limited to the above embodiment, and if various modifications or changes of the present invention do not depart from the spirit and scope of the present invention, the present invention also includes such modifications and changes if such modifications and changes fall within the scope of the claims and the equivalent technology of the present invention.

Claims (7)

1. A laser wire feeding welding machine is characterized in that: the welding wire device comprises a laser welding head main body, an optical fiber head and an optical fiber cable, wherein the optical fiber cable is fixedly spliced with the laser welding head main body through the optical fiber head, a welding wire front outer tube fixing seat and a welding wire rear outer tube fixing seat are arranged below the laser welding head main body, a welding wire front outer tube is fixed on the welding wire front outer tube fixing seat, a welding wire rear outer tube is fixed on the welding wire rear outer tube fixing seat, a welding wire soft outer tube is sleeved on the welding wire rear outer tube, a groove body is arranged on the welding wire rear outer tube fixing seat, a laser switch button and a spring are arranged in the groove body, a switching hole is formed in the groove body, a switch pulling and buckling mechanism is rotatably connected on the switching hole and comprises a pulling and buckling body, a switching column and a limiting column, the switching column is rotatably connected with the switching hole, a welding wire channel is arranged in the, switching post and spacing post set up in the both sides of welding wire passageway, be provided with the welding wire in outer tube before outer tube, swing sleeve pipe and the welding wire behind the welding wire.

2. The laser wire feed welder according to claim 1, characterized in that: the front end of laser welding main part is provided with the mounting groove, fixedly connected with location tungsten tip on the mounting groove, be provided with welding wire through-hole or U type groove on the location tungsten tip.

3. The laser wire feed welder according to claim 1, characterized in that: the laser welding head main body comprises a shell, a laser channel is arranged in the shell, a reflector module is arranged at a corner of the shell, a rotating motor, a focusing mirror module and a protective mirror module are further arranged in the laser channel, and the focusing mirror module is connected with the rotating motor.

4. The laser wire feed welder according to claim 3, characterized in that: the reflector module comprises a reflector fixed block and a reflector, the reflector fixed block is fixedly connected with the shell, and the reflector is arranged on the reflector fixed block.

5. The laser wire feed welder according to claim 3, characterized in that: the protective glass module is embedded into the caulking groove and fixedly connected with the shell.

6. The laser wire feed welder according to claim 3, characterized in that: the rotary motor comprises a motor body and a rotating shaft, the rotating shaft is a hollow rotating shaft, the focusing lens module comprises a pressing ring, a first gasket, a focusing lens, a second gasket and a focusing lens barrel, the first gasket, the focusing lens and the second gasket are sequentially arranged in the focusing lens barrel and are limited by the pressing ring, the pressing ring is fixedly connected with the focusing lens barrel, and the focusing lens barrel is connected with the hollow rotating shaft.

7. The laser wire feed welder according to claim 6, characterized in that: the focusing lens is obliquely arranged relative to the focusing lens barrel, and an included angle is formed between the central line of the focusing lens and the central line of the focusing lens barrel.

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