CN210387942U - Novel laser welding device - Google Patents
Novel laser welding device Download PDFInfo
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- CN210387942U CN210387942U CN201921048883.8U CN201921048883U CN210387942U CN 210387942 U CN210387942 U CN 210387942U CN 201921048883 U CN201921048883 U CN 201921048883U CN 210387942 U CN210387942 U CN 210387942U
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Abstract
The utility model provides a novel laser welding device, which comprises a laser head, a flexible decoupling mechanism and two transducers; the flexible decoupling mechanism comprises a fixed platform, a movable platform, four bending parts, two amplification rods and a double-compliant hinge; the laser head is arranged on the movable platform; the movable platform is connected with the fixed platform through a bending part; one end of each of the two amplifying rods is connected with two of the bending parts through a double-compliant hinge, and the other end of each of the two amplifying rods is connected with the fixed platform through a double-compliant hinge; the two transducers are respectively connected with the two amplifying rods. The utility model discloses laser welding device simple structure is compact, and this laser welding device adopts simple structure relatively to realize welded positioning accuracy to reduce welding error, thereby improve laser welding's stability and welding seam quality.
Description
Technical Field
The utility model relates to a laser beam machining equipment technical field, more specifically say, relate to a novel laser welding device.
Background
The laser welding is one of high-energy beam welding technologies, has the characteristics of high energy density, high welding speed, high automation degree, small deformation of a welding structure, strong flexibility and the like, has specific technical advantages and economic advantages, and is widely applied to the fields of aerospace, automobile manufacturing, light industry and electronics and the like.
However, the following disadvantages may exist with laser welding applied to certain alloys: for example, aluminum alloys have a very high initial surface reflectivity to the laser beam, resulting in very low energy absorption rates, and very high laser power density thresholds are required for laser penetration weld build-up. When the traditional welding laser head is used for welding the alloy, the actual utilization rate of laser is low, the behavior and the stability of a deep melting small hole in the welding process are difficult to control, and the air holes are easy to appear in a welding seam, so that the quality of the welding seam is poor, and the quality of a welding finished product is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome shortcoming and not enough among the prior art, provide a novel laser welding device of simple structure compactness, this laser welding device adopts relatively simple structure to realize welded positioning accuracy to strengthen laser welding's stability and the quality that improves the laser welding seam.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a novel laser welding device which characterized in that: the laser head, the flexible decoupling mechanism and the two transducers are included; the flexible decoupling mechanism comprises a fixed platform, a movable platform, four bending parts, two amplification rods and a double-compliant hinge; the laser head is arranged on the movable platform; the movable platform is connected with the fixed platform through a bending part; one end of each of the two amplifying rods is connected with two of the bending parts through a double-compliant hinge, and the other end of each of the two amplifying rods is connected with the fixed platform through a double-compliant hinge; the two transducers are respectively connected with the two amplifying rods.
In the above scheme, the utility model discloses increased flexible decoupling zero mechanism on traditional laser head, this flexible decoupling zero mechanism is a gentle and agreeable mechanism, and its material is aluminum alloy 7075, has fine dynamic performance, and integrated into one piece does not need extra assembly, and processing is convenient. Because the material of the flexible decoupling mechanism has high elastic modulus and low density, the flexible decoupling mechanism can convert the vibration from the transducer into tiny displacement of the laser head. In the laser welding process, the two transducers send vibration waves to the flexible decoupling mechanism, the vibration waves are transmitted to the laser head through the flexible decoupling mechanism, on one hand, the small movement of the laser head can be controlled and adjusted through changing the amplitude and the frequency, so that the effect of controlling and adjusting the laser welding track is achieved, and the stability in the laser welding process is favorably enhanced. On the other hand, the vibration can be applied to the laser beam to strengthen the density of the laser beam, reduce the generation of pores, enhance the quality of welding seams and improve the welding quality. Furthermore the utility model discloses not only can be fine the realization weld the metal that has high surface laser reflectivity such as aluminum alloy, also have good welding effect to materials such as ordinary stainless steel and alloy steel.
The movable platform is formed by a movable part and an installation part in an integrated mode; the moving parts are arranged on the four sides of the mounting part, and the laser heads are mounted on the mounting part;
the moving part is in a T shape, and the vertical part of the T-shaped moving part is connected with the mounting part.
The four bending parts comprise bending rods and bending beams; the bending rod is respectively connected with the fixed platform and the movable platform through a bending beam; the bending rod is a frame-shaped bending rod provided with a notch.
The vertical component of the T-shaped moving part is positioned at the notch, and the transverse component of the T-shaped moving part is positioned inside the bending rod and is connected with the inside of the bending rod through the bending beam, so that the bending rod is connected with the movable platform.
Two sides of the bending rod are respectively connected with the fixed platform through a bending beam; one end of each of the two amplifying rods is connected with the relative rear part of the gap of each of the two bending rods through a double-compliant hinge; gaps I are arranged between the relative rear parts of the gaps of the other two bending rods and the fixed platform.
And a second gap is formed between each of the two support rods forming the notch in the bent rod and the mounting part of the movable platform.
The energy converter is connected with one end of the amplifying rod, which is connected with the bending part;
the double-compliant hinge is a symmetrical double-compliant hinge and consists of two identical single-compliant hinges; the two single flexible hinges are symmetrically arranged back to back; the cross section of the single flexible hinge is arc-shaped, circular arc-shaped, semicircular or semi-elliptical.
Compared with the prior art, the utility model has the advantages of as follows and beneficial effect: the utility model discloses laser welding device simple structure is compact, and this laser welding device adopts simple structure relatively to realize welded positioning accuracy to reduce welding error, thereby strengthen laser welding's stability and the quality that improves the laser welding seam.
Drawings
FIG. 1 is a schematic structural view of a laser welding apparatus according to the present invention;
FIG. 2 is a schematic structural diagram of a flexible decoupling mechanism in the laser welding apparatus of the present invention;
wherein, 1 is a laser head, 2 is a flexible decoupling mechanism, 21 is a bending beam, 22 is a movable platform, 23 is an amplifying rod, 24 is a fixed platform, 25 is a double-compliant hinge, 26 is a bending rod, 3 is a transducer, 4 is a gap I, and 5 is a gap II.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Examples
As shown in fig. 1 and 2, the laser welding device of the present invention comprises a laser head 1, a flexible decoupling mechanism 2 and two transducers 3, wherein the flexible decoupling mechanism 2 comprises a fixed platform 24, a movable platform 22, four bending parts, two amplifying rods 23 and a double-compliant hinge 25, the laser head 1 is mounted on the movable platform 22, and the movable platform 22 is connected with the fixed platform 24 through the bending parts; one end of each of the two amplification rods 23 is connected with two of the bending parts through a double-compliant hinge 25, and the other end of each of the two amplification rods is connected with the fixed platform 24 through the double-compliant hinge 25; the two transducers 3 are connected to one ends of the two amplification rods 23 to which the bending members are connected, respectively.
Specifically, the movable table 22 is integrally formed by a movable portion provided on four sides of a mounting portion and a mounting portion on which the laser head 1 is mounted. The moving part is in a T shape, and the vertical part of the T-shaped moving part is connected with the mounting part. The four bending parts each include a bending bar 26 and a bending beam 21, the bending bar 26 is connected to the fixed platform 24 and the movable platform 22 through the bending beam 21, and the bending bar 26 is a frame-shaped bending bar provided with a notch. The vertical component of the T-shaped moving part is positioned at the notch, the transverse component of the T-shaped moving part is positioned inside the bending rod 26 and is connected with the inside of the bending rod 26 through the bending beam 21, and the bending rod 26 is connected with the movable platform 22. Two sides of the bending rods 26 of the embodiment are respectively connected with the fixed platform 24 through the bending beams 21, one ends of the two amplifying rods 23 are connected with the relative rear parts of the gaps of the two bending rods 26 through the double-compliant hinge 25, and a gap I4 is formed between the relative rear parts of the gaps of the other two bending rods 26 and the fixed platform. A second gap 5 is arranged between the two support rods forming the gap in the bent rod 26 and the mounting part of the movable platform 22.
The double-compliant hinge 25 of the present embodiment is a symmetrical double-compliant hinge and is composed of two identical single-compliant hinges; the two single flexible hinges are symmetrically arranged back to back, and the cross section of each single flexible hinge is arc-shaped. The cross section of the single flexible hinge can be in other shapes such as circular arc, semi-circle or semi-ellipse.
The utility model discloses increased flexible decoupling zero mechanism 2 on traditional laser head 1, this flexible decoupling zero mechanism 2 is a gentle and agreeable mechanism, and its material is aluminum alloy 7075, has fine dynamic performance, and integrated into one piece does not need extra assembly, and processing is convenient. Since the material of the flexible decoupling mechanism 2 has a high elastic modulus and a low density, it can convert the vibration from the transducer 3 into a small displacement of the laser head 1. In the laser welding process, two transducers 3 send the vibration wave to flexible decoupling mechanism 2, and the vibration wave passes through flexible decoupling mechanism 2 and transmits laser head 1 on, can control the small removal of adjusting the laser head through the size that changes the size of amplitude and frequency on the one hand to reach the effect of control regulation laser welding orbit, be favorable to strengthening the stability of laser welding in-process. On the other hand, the vibration can be applied to the laser beam to strengthen the density of the laser beam, reduce the generation of pores, enhance the quality of welding seams and improve the welding quality. Furthermore the utility model discloses not only can be fine the realization weld the metal that has high surface laser reflectivity such as aluminum alloy, also have good welding effect to materials such as ordinary stainless steel and alloy steel.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (10)
1. The utility model provides a novel laser welding device which characterized in that: the laser head, the flexible decoupling mechanism and the two transducers are included; the flexible decoupling mechanism comprises a fixed platform, a movable platform, four bending parts, two amplification rods and a double-compliant hinge; the laser head is arranged on the movable platform; the movable platform is connected with the fixed platform through a bending part; one end of each of the two amplifying rods is connected with two of the bending parts through a double-compliant hinge, and the other end of each of the two amplifying rods is connected with the fixed platform through a double-compliant hinge; the two transducers are respectively connected with the two amplifying rods.
2. The novel laser welding apparatus of claim 1, wherein: the movable platform is formed by a movable part and an installation part in an integrated mode; the moving part is arranged on four sides of the mounting part, and the laser head is mounted on the mounting part.
3. The novel laser welding apparatus of claim 2, wherein: the moving part is in a T shape, and the vertical part of the T-shaped moving part is connected with the mounting part.
4. The novel laser welding apparatus of claim 3, wherein: the four bending parts comprise bending rods and bending beams; the bending rod is respectively connected with the fixed platform and the movable platform through a bending beam; the bending rod is a frame-shaped bending rod provided with a notch.
5. The novel laser welding apparatus of claim 4, wherein: the vertical component of the T-shaped moving part is positioned at the notch, and the transverse component of the T-shaped moving part is positioned inside the bending rod and is connected with the inside of the bending rod through the bending beam, so that the bending rod is connected with the movable platform.
6. The novel laser welding apparatus of claim 4, wherein: two sides of the bending rod are respectively connected with the fixed platform through a bending beam; one end of each of the two amplifying rods is connected with the relative rear part of the gap of each of the two bending rods through a double-compliant hinge; gaps I are arranged between the relative rear parts of the gaps of the other two bending rods and the fixed platform.
7. The novel laser welding apparatus of claim 4, wherein: and a second gap is formed between each of the two support rods forming the notch in the bent rod and the mounting part of the movable platform.
8. The novel laser welding apparatus of claim 1, wherein: the transducer is connected with one end of the amplifying rod, which is connected with the bending part.
9. The novel laser welding apparatus of claim 1, wherein: the double-compliant hinge is a symmetrical double-compliant hinge and consists of two identical single-compliant hinges; the two single compliant hinges are symmetrically disposed back to back.
10. The novel laser welding apparatus of claim 9, wherein: the cross section of the single flexible hinge is arc-shaped, circular arc-shaped, semicircular or semi-elliptical.
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CN201921048883.8U CN210387942U (en) | 2019-07-05 | 2019-07-05 | Novel laser welding device |
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CN201921048883.8U CN210387942U (en) | 2019-07-05 | 2019-07-05 | Novel laser welding device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110315205A (en) * | 2019-07-05 | 2019-10-11 | 佛山科学技术学院 | A kind of new pattern laser welder and its welding method |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110315205A (en) * | 2019-07-05 | 2019-10-11 | 佛山科学技术学院 | A kind of new pattern laser welder and its welding method |
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