CN220560675U - Laser processing device - Google Patents

Abstract

The utility model discloses a laser processing device, which belongs to the field of laser processing and comprises a light path main body, a first temperature control protection component and a welding module, wherein a light path channel is arranged in the light path main body, an incident port and an emergent port which are communicated with the light path channel are arranged on the light path main body, and a laser beam emitted by a laser generator enters the light path channel from the incident port and is emitted from the emergent port; the first temperature control protection component comprises a temperature control protection shell and a temperature protection sheet, a through hole is formed in the temperature control protection shell and used for passing a laser beam, the temperature protection sheet can be detached from the temperature control protection shell, a temperature sensor is arranged in the temperature control protection shell, and the temperature sensor is abutted to the temperature protection sheet; the welding module is arranged at the emergent end of the first temperature control protection component, and the laser beam passing through the first temperature control protection component passes through the welding module so as to weld the workpiece. Through the structure setting, the safety and the processing quality of the laser processing device are improved.

Description

Laser processing device

Technical Field

The utility model relates to the field of laser processing, in particular to a laser processing device.

Background

The laser welding machine is a machine for processing laser materials, the laser welding is to utilize high-energy laser pulse to locally heat the materials in micro areas, and the energy of laser radiation is guided to the internal diffusion of the materials through heat transfer to melt the materials to form a specific molten pool so as to achieve the purpose of welding.

In the prior art, a laser-arc hybrid welding method different from a single welding heat source is used. As a novel welding method, the laser-arc hybrid welding integrates the advantages of welding by respective single heat source, and mutually compensates the respective defects, so that the practicability of the technology is greatly improved. The laser-arc composite welding has the advantages of large weld penetration, higher welding speed than the traditional arc welding, high welding efficiency, stable welding arc, concentrated heat source energy, low welding heat input, small welding deformation of welded components after welding, easy realization of single-sided welding double-sided forming and the like. At present, the laser-electric arc composite welding has very wide application prospect because the superior process performance is increasingly applied to the fields of shipbuilding, automobiles, petrochemical industry and the like. However, the conventional laser-arc hybrid welding has the disadvantages that the high power limit is faced, and when the laser temperature is too high, the danger is easy to occur, and besides, the cooling mode is single, the effect is not ideal, and the like.

Aiming at the problems, an integrated laser processing welding device for high power is provided, so that the cooling effect of laser-electric arc on the high power in the prior art is improved, the processing temperature is monitored in real time, and the safety of laser processing is improved.

Disclosure of Invention

The utility model aims to provide a laser processing device to solve the technical problems that the laser-electric arc composite welding temperature is too high and dangers are easy to occur in the prior art.

The technical scheme adopted by the utility model is as follows:

a laser processing apparatus comprising:

the laser device comprises a light path main body, wherein a light path channel is arranged in the light path main body, an incident port and an emergent port which are communicated with the light path channel are arranged on the light path main body, a laser generator is arranged at the incident port, a collimating copper mirror is arranged in the light path channel at the position opposite to the incident port, a reflecting component is arranged in the light path channel at the position opposite to the emergent port, and a laser beam emitted by the laser generator enters the light path channel through the incident port, is reflected by the collimating copper mirror and the reflecting component and is emitted by the emergent port;

the first temperature control protection component is arranged at the emergent port to monitor the temperature of the laser beam passing through the first temperature control protection component and alarm when exceeding a preset temperature range; and

And the welding module is arranged at the emergent end of the first temperature control protection component, and the laser beam passing through the first temperature control protection component passes through the welding module so as to weld the workpiece.

This laser beam machining device is through setting up the collimation copper mirror on the light path for the copper mirror is from taking the water-cooling function for the light path main part can effectively bear high-power laser, sets up first temperature control protection component in exit port and real-time supervision laser beam's temperature, in order to report to the police when surpassing preset temperature range, has improved laser beam machining device's security, sets up welding module in first temperature control protection component's exit end, and passes welding module through first temperature control protection component's laser beam, in order to weld the work piece.

As a preferable mode of the laser processing apparatus, the welding module includes:

the laser head is arranged at the emergent end of the first temperature control protection component, and the laser beam passing through the first temperature control protection component is emitted by the laser head; and

And the welding assembly is arranged on the laser head and is used for being matched with the laser beam to weld the workpiece.

The laser head is an output port of the laser device, and mainly aims to focus divergent laser generated by the laser device to form a beam with high concentrated energy, and the laser head is matched with the laser to do work to jet cutting gas, blow away residues or fluxing, so that the effect of precise cutting is finally realized; the welding assembly and the laser beam are matched to weld the workpiece, and the welding assembly has the advantages of large weld penetration, high welding efficiency, stable welding arc, concentrated heat source energy, low welding heat input, small welding deformation of welded components after welding, easiness in realizing single-sided welding and double-sided forming and the like.

As a preferable mode of the laser processing apparatus, the welding module further includes:

the temperature detection unit is arranged on the laser head and is used for detecting the temperature of a molten pool of the laser beam welding workpiece; and/or

And the distance detection unit is arranged on the laser head and is used for detecting the distance between the laser head and the position where the laser beam focuses on the workpiece.

The temperature detection unit is used for detecting the temperature of a molten pool of the laser beam welding workpiece and preventing the processing quality from being influenced by the too high or the too low temperature; the distance detection unit is used for detecting the distance between the laser head and the position where the laser beam focuses on the workpiece, so that the distance between the laser head and the workpiece is adjusted.

As a preferable mode of the laser processing apparatus, the welding assembly includes:

the welding seam tracking device comprises an adjusting structure, a welding seam tracking unit and an arc welding gun unit, wherein one end of the adjusting structure is installed on the laser head, the other end of the adjusting structure is connected with the welding seam tracking unit and the arc welding gun unit, and the adjusting structure is used for adjusting the positions of the welding seam tracking unit and the arc welding gun unit.

The arc welding and the laser welding are combined, so that the welding speed and the welding efficiency are improved on the basis of increasing the welding penetration, and meanwhile, the hot crack defect of a welding line area is eliminated, thereby improving the coupling characteristic of laser energy, stabilizing the welding process and reducing the equipment cost; the arrangement of the weld tracking unit improves the accuracy of weld recognition, greatly improves the weld capacity, ensures that a laser processing device does not depend on experienced welders any more, further improves the production efficiency and reduces the welding cost.

As a preferable mode of the laser processing apparatus, the adjusting structure includes:

the connecting unit is connected with the laser head;

the welding seam tracking unit and the horizontal adjusting unit are arranged on the vertical adjusting unit, and the height positions of the welding seam tracking unit and the horizontal adjusting unit are adjusted through the vertical adjusting unit; the arc welding gun unit is arranged on the horizontal adjusting unit, and the horizontal position of the arc welding gun unit is adjusted through the horizontal adjusting unit.

Through setting up horizontal adjustment unit and vertical adjustment unit on connecting unit, change arc welder's spatial position, improved welding precision to, vertical adjustment unit, horizontal adjustment unit and arc welding gun are integrated in the laser head through connecting unit, have improved and have adjusted holistic rigidity of structure, make laser processingequipment compacter.

As a preferable mode of the laser processing apparatus, the laser processing apparatus further includes a rotation mechanism, the welding module is mounted to the first temperature control protection assembly through the rotation mechanism, and the rotation mechanism is configured to drive the welding module to rotate.

The rotating mechanism can drive the whole welding module to rotate relative to the first temperature control protection assembly, so that the welding angle is changed, the laser processing device can weld workpieces with irregular shapes, and the processing range of the laser processing device is enlarged.

As a preferable mode of the laser processing apparatus, the laser processing apparatus further includes:

the cooling assembly is installed on the rotating mechanism and synchronously rotates with the welding module, and the cooling assembly is used for cooling the welding position of the workpiece.

The cooling component is arranged on the rotating mechanism and used for cooling the welding position of the workpiece, so that the machining quality is prevented from being too low due to the machining overheat of the arc welding gun.

As a preferable scheme of the laser processing device, a beam combining lens is arranged in the light path main body, the beam combining lens is arranged between the collimating copper lens and the reflecting component, an emergent opening communicated with the light path channel is arranged in the light path main body, the emergent opening is correspondingly arranged with the beam combining lens, an image acquisition device is arranged at the emergent opening, and the image acquisition device is used for acquiring visible light reflected by the beam combining lens.

The image acquisition device can observe the laser beam condition in the light path main body in real time and guide laser to cut according to actual needs, so that the laser beam is more accurate in wiring, the edge cutting is smoother, and the purpose of expanding the processing range is achieved while the processing quality is improved.

As a preferable scheme of the laser processing device, a driving component is arranged in the light path main body, the output end of the driving component is connected with the reflecting component, and the driving component is used for driving the reflecting component to swing back and forth.

The driving assembly is arranged in the light path main body, the output end is connected with the reflecting assembly to drive the reflecting assembly to swing, so that the focus of the output laser beam is adjusted, the welding seam is widened, the welding seam with better molding is formed, and compared with the traditional welding technology, the post-treatment of the workpiece processed through the structure is simpler, and the surface of the welded workpiece is smoother.

As a preferable mode of the laser processing apparatus, the laser processing apparatus further includes:

the position compensation device is arranged on the light path main body and is used for driving the light path main body, the first temperature control protection component and the welding module to move.

By arranging the compensation device, the error of laser processing is reduced, and the size difference caused by the cutting loss in the laser processing process is compensated.

The utility model has the beneficial effects that:

according to the laser processing device, the collimating copper mirror is arranged on the light path, the copper mirror is provided with the water cooling function, so that the light path main body can effectively bear high-power laser, the first temperature control protection component is arranged at the emergent port and monitors the temperature of the laser beam in real time, so that the alarm is given when the temperature exceeds the preset temperature range, the safety of the laser processing device is improved, the welding module is arranged at the emergent end of the first temperature control protection component, and the laser beam passing through the first temperature control protection component passes through the welding module to weld a workpiece.

Drawings

FIG. 1 is an assembly view of a laser processing apparatus provided by the present utility model;

FIG. 2 is a cross-sectional view of a first temperature control protection assembly provided by the present utility model;

FIG. 3 is a cross-sectional view of an optical path body provided by the present utility model;

FIG. 4 is an assembly view of a welding module provided by the present utility model;

fig. 5 is a cross-sectional view of the rotation mechanism and laser head provided by the present utility model;

fig. 6 is a side view of the position compensation device provided by the utility model.

In the figure:

1. an optical path main body; 11. an optical fiber interface; 12. a collimating copper mirror; 13. a reflective assembly; 14. a laser beam; 15. a beam combining lens; 16. a drive assembly;

2. a first temperature control protection component; 21. a temperature control protective shell; 22. a temperature protection sheet; 23. a temperature sensor;

3. a welding module; 31. a laser head; 32. welding the assembly; 321. an adjustment structure; 3211. a connection unit; 3212. a vertical adjustment unit; 3213. a level adjustment unit; 322. arc welding gun units; 3221. an arc welding gun; 3222. an adjusting section; 3223. a mounting part; 323. a cooling component; 324. a weld tracking unit; 325. a pose adjusting mechanism; 326. a second adjustment assembly; 33. a temperature detection unit; 34. a distance detection unit;

4. a rotation mechanism; 41. a rotating body; 42. ball plunger;

5. an image acquisition device; 51. a collection assembly; 52. a display assembly;

6. a position compensation device; 61. a first compensation unit; 611. a vertical guide rail portion; 612. a vertical slider portion; 62. a second compensation unit; 621. a horizontal guide rail portion; 622. a horizontal slider portion;

7. and a second temperature control protection component.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

The embodiment provides a laser processing device, as shown in fig. 1-3, the laser processing device includes an optical path main body 1, a first temperature control protection component 2 and a welding module 3, wherein an optical path channel is arranged in the optical path main body 1, an incident port and an emergent port which are communicated with the optical path channel are arranged on the optical path main body 1, an optical fiber interface 11 is arranged on the incident port, the optical fiber interface 11 is used for installing a laser generator, and a laser beam 14 emitted by the laser generator enters the optical path channel from the incident port and is emitted from the emergent port. The first temperature control protection component 2 is arranged at the exit port and is used for monitoring the temperature of the laser beam 14 passing through the temperature control protection component and giving an alarm when the detected temperature exceeds a preset temperature range, so that the safety of the laser processing device is improved, the welding module 3 is arranged at the exit end of the first temperature control protection component 2, and the laser beam 14 passing through the first temperature control protection component 2 passes through the welding module 3 to weld workpieces.

Further, the first temperature control protection component 2 includes a temperature control protection housing 21 and a temperature control protection sheet 22, through holes are respectively provided on two opposite sides of the temperature control protection housing 21 for the laser beam 14 to pass through, and when the temperature control protection sheet 22 is installed in the temperature control protection housing 21, the temperature control protection sheet 22 is opposite to the through holes of the temperature control protection housing 21, and the laser beam 14 can pass through the temperature control protection sheet 22. The inside of the temperature control protective housing 21 is provided with a temperature sensor 23 and an alarm, the temperature sensor 23 is abutted against the temperature protective sheet 22 to detect the temperature of the temperature protective sheet 22 through the temperature sensor 23, and when the detected temperature exceeds a preset temperature range, the alarm gives an alarm. The alarm can be a voice alarm or a light alarm, and can also be provided with a voice alarm and a light alarm at the same time, which is not particularly limited herein.

Preferably, the temperature protection sheet 22 is detachable in the temperature control protection housing 21, so as to facilitate replacement and maintenance of the temperature protection sheet 22. In this embodiment, two sets of temperature protection sheets 22 are disposed at intervals along the height direction of the temperature control protection housing 21, each set of temperature protection sheets 22 is provided with a temperature sensor 23, and when the temperature detected by any one temperature sensor 23 exceeds the preset temperature range, the alarm gives an alarm, so as to avoid the problem of detection errors when only one set of temperature protection sheets 22 is disposed.

As shown in fig. 3, a collimating copper mirror 12 is disposed in the optical path channel at a position opposite to the incident port, a reflecting component 13 is disposed at a position opposite to the emergent port, and a laser beam 14 emitted by the laser generator enters the optical path channel through the incident port and is emitted from the emergent port through the collimating copper mirror 12 and the reflecting component 13. Because the copper mirror is provided with a water cooling function, the laser processing device can effectively bear high-power laser by arranging the collimating copper mirror 12 on the light path, so that the light path main body 1 can effectively bear high-power laser.

Further, a beam combining lens 15 is arranged in the optical path main body 1, the beam combining lens 15 is arranged between the collimating copper lens 12 and the reflecting component 13, an emergent opening communicated with the optical path channel is arranged on the optical path main body 1, and an image acquisition device 5 is arranged at the emergent opening. The image acquisition device 5 can observe the condition of the laser beam 14 in the optical path main body 1 in real time and guide the laser to cut according to actual needs, so that the routing of the laser beam 14 is more accurate, the edge cutting is smoother, and the purpose of expanding the processing range is achieved while the processing quality is improved.

Specifically, the image acquisition device 5 includes an acquisition component 51 and a display component 52, where the acquisition component 51 is used to acquire visible light reflected by the beam collecting lens 15, and the display component 52 is disposed on the outer side of the optical path main body 1, so as to monitor the condition of the laser beam 14 in the optical path main body 1 in real time, and match with the driving component 16, so as to achieve the purpose of accurately adjusting the focus of the laser beam 14. In this embodiment, the collecting component 51 is a CCD camera, which has the characteristics of small size and light weight, is easy to be assembled on a laser processing device, and has good charge transmission efficiency because it is not affected by a strong electromagnetic field due to low power consumption, so in this embodiment, a CDD camera is selected as the collecting component 51.

Further, a driving unit 16 is provided in the optical path body 1, and an output end thereof is connected to the reflecting unit 13. The driving assembly 16 is arranged in the light path main body 1, the output end is connected with the reflecting assembly 13 to drive the reflecting assembly 13 to swing, so that the focus of the output laser beam 14 is adjusted, the welding seam is widened, the welding seam is better formed, and compared with the traditional welding technology, the post-treatment of the workpiece processed through the structure is simpler, and the surface of the welded workpiece is smoother.

As shown in fig. 4, the welding module 3 includes a laser head 31 and a welding assembly 32, wherein the laser head 31 is mounted at the exit end of the first temperature control protection assembly 2, and the laser beam 14 passing through the first temperature control protection assembly 2 is emitted by the laser head 31; a welding assembly 32 is mounted on the laser head 31 for welding a workpiece in cooperation with the laser beam 14. The laser head 31 is used as an output port of the laser device, and mainly functions to focus divergent laser generated by the laser device to form a beam with high concentrated energy, and the laser head is matched with laser to do work to jet cutting gas, blow away residues or fluxing, so that the effect of precise cutting is finally realized.

Specifically, the welding module 3 further includes a temperature detecting unit 33 and/or a distance detecting unit 34, where the temperature detecting unit 33 and/or the distance detecting unit 34 are installed on the laser head 31, and the temperature detecting unit 33 is used to detect a molten pool temperature of the workpiece welded by the laser beam 14, so as to prevent the processing quality from being affected by too high or too low temperature; the distance detecting unit 34 is used to detect the distance between the laser head 31 and the position where the laser beam 14 is focused on the workpiece, thereby adjusting the distance between the laser head 31 and the workpiece. The laser head 31 may be provided with only the temperature detecting unit 33, only the distance detecting unit 34, and both the temperature detecting unit 33 and the distance detecting unit 34.

Further, the welding assembly 32 includes an adjusting structure 321, a seam tracking unit 324 and an arc welding gun unit 322, wherein one end of the adjusting structure 321 is mounted on the laser head 31, the other end is connected to the seam tracking unit 324 and the arc welding gun unit 322, and the adjusting structure 321 is used for adjusting positions of the seam tracking unit 324 and the arc welding gun unit 322. The arc welding and the laser welding are combined, so that the welding efficiency of the welding speed is improved on the basis of increasing the welding penetration, and meanwhile, the hot crack defect of a welding line area is eliminated, thereby improving the coupling characteristic of laser energy, stabilizing the welding process and reducing the equipment cost; the arrangement of the weld tracking unit 324 improves the accuracy of weld identification, greatly improves the weld capacity, makes the laser processing device not depend on experienced welders any more, further improves the production efficiency and reduces the welding cost.

Specifically, the adjusting structure 321 includes a connection unit 3211, a vertical adjusting unit 3212 and a horizontal adjusting unit 3213, wherein the connection unit 3211 is connected to the laser head 31, the vertical adjusting unit 3212 is disposed on the connection unit 3211, the seam tracking unit 324 and the horizontal adjusting unit 3213 are disposed on the vertical adjusting unit 3212, the seam tracking unit 324 and the horizontal adjusting unit 3213 adjust the height position through the vertical adjusting unit 3212, the arc welding gun unit 322 is disposed on the horizontal adjusting unit 3213, and the arc welding gun unit 322 adjusts the horizontal position through the horizontal adjusting unit 3213. Through setting up horizontal adjustment unit 3213 and vertical adjustment unit 3212 on connecting unit 3211, the spatial position of change arc welder unit 322 has improved welding precision to, vertical adjustment unit 3212, horizontal adjustment unit 3213 and arc welder unit 322 are integrated in laser head 31 through connecting unit 3211, have improved the holistic rigidity of adjusting structure 321, make laser processing device compacter.

Specifically, the arc welding gun unit 322 includes an arc welding gun 3221 and a first adjusting assembly at least for adjusting an angle of the arc welding gun 3221, the first adjusting assembly includes an adjusting portion 3222 and a mounting portion 3223, wherein the adjusting portion 3222 is connected to the horizontal adjusting unit 3213, the arc welding gun 3221 is mounted on the mounting portion 3223, and the mounting portion 3223 is pivotally connected to the adjusting portion 3222. During installation, the bolt passes through the adjusting portion 3222 and the mounting portion 3223, and after the machining angle is adjusted, the bolt extending portion is fastened by the nut, so that the angle adjustment of the arc welding gun unit 322 is completed.

In this embodiment, a plurality of through holes are formed in the height direction of the adjusting portion 3222, when the height of the arc welding gun 3221 needs to be adjusted, for example, the focal point of the laser is changed, the surface shape of the workpiece to be machined is irregular, the bolt can be detached, then the height of the arc welding gun 3221 is adjusted according to actual needs, and finally, a proper through hole is selected and fixed by the bolt and the nut.

As shown in fig. 4, a pose adjusting mechanism 325 and a second adjusting component 326 are disposed between the seam tracking unit 324 and the vertical adjusting unit 3212, the pose adjusting mechanism 325 is disposed on the vertical adjusting unit 3212, the pose adjusting mechanism 325 is used for adjusting the position of the seam tracking unit 324 along the horizontal direction, the second adjusting component 326 is disposed on the pose adjusting mechanism 325, the seam tracking unit 324 is disposed on the second adjusting component 326, and the second adjusting component 326 is used for adjusting the height and the angle of the seam tracking unit 324.

Specifically, the position adjusting mechanism 325 includes a guide rail and a sliding block, the guide rail is disposed on the vertical adjusting unit 3212, the guide rail extends along the horizontal direction, in this embodiment, the guide rail is in an arc-shaped structure, the sliding block is slidably connected with the guide rail, the second adjusting component 326 is disposed on the sliding block, and the weld tracking unit 324 is disposed on the second adjusting component 326. In this embodiment, the adjusting principle of the second adjusting component 326 is the same as that of the first adjusting component, and the structure is similar, and will not be described herein. Of course, the second adjusting assembly 326 may have other structures as long as the height and angle adjustment can be achieved.

Further, the laser processing device further comprises a rotating mechanism 4, the welding module 3 is mounted on the first temperature control protection assembly 2 through the rotating mechanism 4, and the rotating mechanism 4 is used for driving the welding module 3 to rotate. Because rotary mechanism 4 can drive welding module 3 whole to rotate for first control by temperature change protection component 2 to change the welding angle, make laser beam machining device can weld some irregularly shaped work pieces, thereby enlarge laser beam machining device's machining scope.

Specifically, as shown in fig. 5, the rotation mechanism 4 includes a rotation body 41 and a plurality of ball plungers 42, wherein the rotation body 41 is sleeved on the laser head 31 and can rotate relative to the laser head 31, the plurality of ball plungers 42 are installed in the circumferential direction of the rotation body 41, the laser head 31 is provided with a plurality of grooves, the number of the grooves is equal to the number of the ball plungers 42, and metal balls inside the ball plungers 42 are matched with the grooves one by one. When the rotary main body 41 is required to rotate, the metal ball of the ball plunger 42 is screwed out of the groove under the drive of the rotary main body 41, the rotary mechanism 4 integrally drives the welding assembly 32 to rotate relative to the first temperature control protection assembly 2, the metal ball of the ball plunger 42 can compress the spring in the ball plunger 42 due to stress, and after the rotation angle is adjusted, the metal ball of the ball plunger 42 is pressed into the groove of the laser head 31 again by means of the restoring force of the spring, so that the purpose of fixing the rotary mechanism 4 is achieved.

In this embodiment, the ball plunger 42 is a threaded ball plunger, the ball plunger 42 is in threaded connection with the rotating body 41, and through the above structure, the ball plunger 42 caused by processing is prevented from being separated from the rotating body 41, the overall stability of the rotating mechanism 4 is enhanced, and the threaded ball plunger also has the advantages of reliable connection, convenient assembly and disassembly, and the like.

In other embodiments, the ball plunger 42 may also be a press-in ball plunger, where the press-in ball plunger may accurately adjust the pressure on the end surface according to the situation, and the service life of the ball plunger may be increased by reducing the thickness of the bushing plug as much as possible, thereby reducing the fatigue of the spring.

Further, the laser processing apparatus further includes a cooling component 323, wherein the cooling component 323 is mounted on the rotating mechanism 4 and rotates synchronously with the welding module 3. The cooling module 323 is mounted on the rotating mechanism 4 and is used for cooling the welding position of the workpiece.

Specifically, the cooling component 323 is connected to the rotating mechanism 4 by using a hinge, which has the advantages of low cost, capability of randomly adjusting the direction, strong bearing capacity and the like compared with other connection modes.

In this embodiment, during laser processing, the cooling component 323 can spray inert gas to cool, and because argon is an inert gas, and does not react with metal, the alloy element will not be burned out, and the welding process is basically a process of melting and crystallizing metal, so that a relatively pure and high-quality welding seam can be obtained, therefore, argon is preferable to cool.

Optionally, the laser processing device further includes a position compensation device 6, and the position compensation device 6 is mounted on the optical path main body 1, and is mainly used for driving the positions of the optical path main body 1, the first temperature control protection component 2 and the welding module 3 to move. By arranging the compensation device, the error of laser processing is reduced, and the size difference caused by the cutting loss in the laser processing process is compensated.

Specifically, as shown in fig. 6, the position compensation device 6 includes a first compensation unit 61 and a second compensation unit 62, where the first compensation unit 61 includes a vertical guide rail portion 611 and a vertical slider portion 612, the vertical slider portion 612 is connected to the optical path body 1, and the vertical slider portion 612 can drive the optical path body 1 to make a reciprocating linear motion on the vertical guide rail portion 611; the second compensation unit 62 includes a horizontal guide rail portion 621 and a horizontal slider portion 622, and the horizontal slider portion 622 is connected to the vertical guide rail portion 611 to drive the first compensation unit 61 to reciprocate on the horizontal guide rail portion 621.

Further, the laser processing device further comprises a control unit, the control unit is electrically connected with the position compensation device 6, and the control unit controls the position compensation device 6 to act, so that the laser head 31 is driven to move along the horizontal or vertical direction, and the laser beam 14 is always welded in the middle of the welding seam. Because the PLC has a series of advantages of strong control function, high reliability, flexible and convenient use, easy expansion and the like, the PLC is selected as a control unit.

Further, the laser processing device further comprises a second temperature control protection component 7, wherein the second temperature control protection component 7 has the same structure as the first temperature control protection component 2, and the second temperature control protection component 7 is arranged at the incident port to monitor the incident temperature of the laser beam 14 from the optical fiber interface 11 and alarm when the detected temperature exceeds the preset temperature range, so that the safety of the laser processing device is further improved.

The above embodiments merely illustrate the basic principle and features of the present utility model, and the present utility model is not limited to the above embodiments, but may be varied and altered without departing from the spirit and scope of the present utility model. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. A laser processing apparatus, comprising:

the laser device comprises a light path main body (1), wherein a light path channel is arranged in the light path main body (1), an incident port and an emergent port which are communicated with the light path channel are arranged on the light path main body (1), a laser generator is arranged at the incident port, a collimating copper mirror (12) is arranged in the light path channel at the position opposite to the incident port, a reflecting component (13) is arranged in the light path channel at the position opposite to the emergent port, and a laser beam (14) emitted by the laser generator enters the light path channel from the incident port, is reflected by the collimating copper mirror (12) and the reflecting component (13) and is emitted from the emergent port;

the first temperature control protection component (2) is arranged at the emergent port to monitor the temperature of the laser beam (14) passing through the first temperature control protection component (2) and alarm when the temperature exceeds a preset temperature range; and

The welding module (3) is arranged at the emergent end of the first temperature control protection component (2), and the laser beam (14) passing through the first temperature control protection component (2) passes through the welding module (3) so as to weld the workpiece.

2. The laser machining device according to claim 1, characterized in that the welding module (3) comprises:

the laser head (31) is arranged at the emergent end of the first temperature control protection component (2), and the laser beam (14) passing through the first temperature control protection component (2) is emergent from the laser head (31); and

And the welding assembly (32) is arranged on the laser head (31) and is used for being matched with the laser beam (14) to weld the workpiece.

3. The laser machining device according to claim 2, characterized in that the welding module (3) further comprises:

a temperature detection unit (33) mounted on the laser head (31) for detecting the bath temperature of the laser beam (14) for welding the workpiece; and/or

And a distance detection unit (34), wherein the distance detection unit (34) is installed on the laser head (31), and the distance detection unit (34) is used for detecting the distance between the laser head (31) and the position where the laser beam (14) focuses on a workpiece.

4. The laser machining device according to claim 2, wherein the welding assembly (32) comprises:

the welding line adjusting device comprises an adjusting structure (321), a welding line tracking unit (324) and an arc welding gun unit (322), wherein one end of the adjusting structure (321) is installed on the laser head (31), the other end of the adjusting structure is connected with the welding line tracking unit (324) and the arc welding gun unit (322), and the adjusting structure (321) is used for adjusting the positions of the welding line tracking unit (324) and the arc welding gun unit (322).

5. The laser machining device according to claim 4, characterized in that the adjustment structure (321) comprises:

a connection unit (3211) connected to the laser head (31);

a vertical adjustment unit (3212) and a horizontal adjustment unit (3213), wherein the vertical adjustment unit (3212) is arranged on the connection unit (3211), the seam tracking unit (324) and the horizontal adjustment unit (3213) are both arranged on the vertical adjustment unit (3212), and the seam tracking unit (324) and the horizontal adjustment unit (3213) adjust the height position through the vertical adjustment unit (3212); the arc welding gun unit (322) is arranged on the horizontal adjusting unit (3213), and the arc welding gun unit (322) adjusts the horizontal position through the horizontal adjusting unit (3213).

6. The laser machining device according to any one of claims 1-5, characterized in that the laser machining device further comprises a rotation mechanism (4), the welding module (3) being mounted to the first temperature-controlled protection assembly (2) by means of the rotation mechanism (4), the rotation mechanism (4) being configured to drive the welding module (3) in rotation.

7. The laser processing apparatus of claim 6, further comprising:

the cooling component (323), cooling component (323) install in on rotary mechanism (4), and with welding module (3) synchronous rotation, cooling component (323) are used for cooling the welding position of work piece.

8. The laser processing device according to any one of claims 1 to 5, wherein a beam combining lens (15) is disposed in the optical path main body (1), the beam combining lens (15) is disposed between the collimating copper lens (12) and the reflecting component (13), an exit opening communicated with the optical path channel is disposed on the optical path main body (1), the exit opening is disposed corresponding to the beam combining lens (15), an image collecting device (5) is disposed at the exit opening, and the image collecting device (5) is used for collecting visible light reflected by the beam combining lens (15).

9. The laser processing device according to any one of claims 1 to 5, wherein a driving component (16) is disposed in the optical path main body (1), an output end of the driving component (16) is connected with the reflecting component (13), and the driving component (16) is used for driving the reflecting component (13) to swing reciprocally.

10. The laser processing apparatus according to any one of claims 1 to 5, further comprising:

the position compensation device (6), the position compensation device (6) is installed on the light path main body (1), and the position compensation device (6) is used for driving the light path main body (1), the first temperature control protection component (2) and the movement of the position of the welding module (3).