Light path device for obtaining point annular light beam
By designing an optical path device that uses a combination of reflective mirrors to form a point ring beam, the problems of rough welds, excessive spatter, and blast points in the welding of highly reflective materials are solved, thus improving welding quality and efficiency.
Patent Information
- Application Number
- CN202520044811.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Existing laser welding equipment suffers from welding defects such as rough welds, uneven edges, excessive spatter, and explosion points when welding highly reflective materials.
An optical path device is adopted, which includes a corner housing, a fixed housing, a connecting cover, a collimator, an optical path assembly, and a lens. By using reflective lenses and lens combinations, the propagation path of the light beam is changed, so that it forms a point-ring beam, optimizes heat distribution, and reduces splashing and explosion points.
It improves welding quality, reduces welding porosity and cracks, enhances laser absorption rate and weld strength during the welding process, stabilizes keyhole morphology, and improves welding efficiency.
Smart Images
Figure CN223684618U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to laser welding technical field especially relates to a light path device of obtaining point annular light beam. BACKGROUND
[0002] The English full name of the light beam shaping system is Doing Ring Shaping System, abbreviated as DRSS, which plays a role in optimizing beam characteristics, improving welding quality and welding efficiency in laser welding;
[0003] In the 3C industry, a large number of metal and non-metal parts are processed, and the light beam shaping system assisted laser welding has become an important processing method in the 3C industry due to its high precision, non-contact, rapidity and high efficiency;
[0004] In the 3C laser welding industry, the light path device in the existing laser welding device will cause rough weld, uneven edge, splashing, and welding defects such as explosion point during the process of welding materials such as copper, aluminum and titanium, so a light path device for obtaining point annular light beam is proposed to solve the above problems. UTILITY MODEL CONTENT
[0005] In order to make up for the above shortcomings, the utility model provides a light path device for obtaining point annular light beam, aiming at improving the problem that the light path device in the laser welding device in the prior art will cause rough weld, uneven edge, splashing, and welding defects such as explosion point.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a light path device for obtaining point annular light beam, comprising a corner shell, a fixed shell is fixedly connected to the right side wall surface of the corner shell, a connecting upper cover is arranged on the top surface of the corner shell, a collimator is arranged on the top of the connecting upper cover, a light path assembly is arranged at both ends of the corner shell, a connecting assembly is arranged at the connection between the connecting upper cover and the corner shell, the light path assembly comprises a sealing cover fixedly connected to the left side of the corner shell, an installation plate is fixedly connected in the sealing cover, a lens holder is fixedly connected to the surface of the end of the installation plate away from the sealing cover, a reflecting lens is fixedly connected between the inner walls of the lens holder, a locking ring is fixedly connected to the both sides of the fixed shell, a single concave lens with a middle opening is fixedly connected to the left side of the fixed shell, a single convex lens with a middle opening is fixedly connected to the right side of the fixed shell, a plastic grease gasket is fixedly connected to the surface of the end of the single concave lens with a middle opening and the single convex lens with a middle opening close to the locking ring, a protective lens is fixedly connected to the surface of the end of the plastic grease gasket away from the fixed shell, and a protective gasket is fixedly connected to the surface of the end of the protective lens away from the plastic grease gasket;
[0007] As a further description of the above technical solutions: the connecting assembly comprises a connecting plate fixedly connected to the bottom surface of the connecting cover, limit holes are symmetrically arranged on the opposite surfaces of the connecting plate, an annular insertion slot is arranged on the top surface of the corner shell, sliding grooves are symmetrically arranged on the opposite surfaces of the corner shell, springs are symmetrically fixedly connected to the surface of the corner shell, a pull rod is fixedly connected to the other end of each spring, and a limit rod is fixedly connected to the surface of each end of the pull rod;
[0008] As a further description of the above technical solutions: the corner shell is arranged at an inclined angle close to the cover, and the reflecting mirror is arranged at an inclined angle.
[0009] As a further description of the above technical solutions: the locking ring, the single-concave mirror with a middle opening, the single-convex mirror with a middle opening, the plastic grease gasket, the protective mirror and the protective gasket are arranged on the same horizontal line.
[0010] As a further description of the above technical solutions: the single-concave mirror with a middle opening and the single-convex mirror with a middle opening are arranged at the two ends of the fixed shell in a symmetrical manner.
[0011] As a further description of the above technical solutions: the connecting plate is slidingly connected in the annular insertion slot, and the limit hole has the same size as the sliding groove.
[0012] As a further description of the above technical solutions: the limit hole and the sliding groove are arranged on the same horizontal line, and the limit rod is slidingly connected in the sliding groove.
[0013] As a further description of the above technical solutions: the limit rod is slidingly connected in the limit hole, and the pull rod is arranged on the outer side of the corner shell.
[0014] The utility model has the advantages of the following beneficial effects:
[0015] 1. In the utility model, the light path assembly is arranged, when welding, the point annular light beam can optimize heat distribution, reduce defects such as spatter and explosion point, thereby can reduce the generation of welding porosity and crack, and further improve the laser absorption rate in the welding process, stabilize the keyhole form in the welding process, make the welding appearance smooth, improve the strength of the welding point, and further improve the welding quality.
[0016] 2. The utility model discloses, through the setting of connecting assembly, make only need to pull the pull rod drive stop rod movement, can realize the disassembly and installation of connecting upper cover and corner casing, do not need to install it through a large number of bolts, so that it does not need to carry any tool when installing, convenient to the disassembly between corner casing and connecting upper cover, simultaneously, when installing is completed, the light beam that the collimator sends out can pass through this light path assembly and change light beam into point annular light beam, central light beam decides the depth of penetration, and the outer ring is used to stabilize the welding spoon hole, effectively reduces the spatter, and the welding defect such as explosion point, improves the weld quality, promotes the welding efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a three-dimensional schematic view of the light path device for obtaining point annular light beam that the utility model proposes;
[0018] Figure 2 It is the structure schematic view of the light path assembly of the light path device for obtaining point annular light beam that the utility model proposes;
[0019] Figure 3 It is Figure 2 The enlarged view of A in the middle.
[0020] Legend:
[0021] 1, corner casing;2, fixed casing;3, connecting upper cover;4, collimator;5, light path assembly;50, single convex mirror with middle opening;51, cover;52, mounting plate;53, lens holder;54, reflecting lens;55, locking ring;56, single concave mirror with middle opening;57, plastic grease gasket;58, protective lens;59, protective gasket;6, connecting assembly;61, connecting plate;62, limiting hole;63, annular insertion slot;64, sliding slot;65, spring;66, pull rod;67, stop rod. DETAILED DESCRIPTION
[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0023] Refer to Figure 1 Figure 3 This utility model provides an embodiment of an optical path device for obtaining a point ring beam, comprising a corner housing 1, a fixed housing 2 fixedly connected to the right side wall surface of the corner housing 1, a connecting cover 3 provided on the top surface of the corner housing 1, a collimator 4 provided on the top of the connecting cover 3, optical path components 5 provided at both ends of the corner housing 1, and a connecting component 6 provided at the connection between the connecting cover 3 and the corner housing 1. The optical path component 5 includes a cover 51 fixedly connected to the left side of the corner housing 1, a mounting plate 52 fixedly connected inside the cover 51, a lens holder 53 fixedly connected to the end surface of the mounting plate 52 away from the cover 51, and a reflector fixedly connected between the inner walls of the lens holder 53. The fixed housing 2 has locking rings 55 fixedly connected to both sides. A single concave mirror 56 with a central opening is fixedly connected to the left side of the fixed housing 2, and a single convex mirror 50 with a central opening is fixedly connected to the right side. Plastic gaskets 57 are fixedly connected to the surfaces of the single concave mirror 56 and the single convex mirror 50 near the locking rings 55. A protective mirror 58 is fixedly connected to the surface of the plastic gasket 57 away from the fixed housing 2. Protective gaskets 59 are fixedly connected to the surfaces of the protective mirror 58 away from the plastic gasket 57. The light source passes through the collimator 4, converting the divergent light beam into a parallel light beam, which is then reflected by the reflector 54. The beam direction is changed without altering its shape or divergence angle, maintaining a parallel beam. The parallel beam then diverges through a concave mirror 56 with a central aperture, altering its propagation path and causing it to diverge outwards. The diverged beam is then refocused through a convex mirror 50 with a central aperture, forming a point-ring beam. This point-ring beam optimizes heat distribution during welding, reducing spatter and blast defects, thus minimizing weld porosity and cracks. Furthermore, it increases laser absorption, stabilizes the keyhole shape, smooths the weld appearance, and improves weld strength. This improves welding quality. The corner housing 1 is angled at the end near the cover 51, and the reflector 54 is tilted. The locking ring 55, the single concave lens 56 with a central opening, the single convex lens 50 with a central opening, the plastic gasket 57, the protective lens 58, and the protective gasket 59 are all on the same horizontal line. The single concave lens 56 and the single convex lens 50 with a central opening are positioned opposite each other on the fixed housing 2. The light beam emitted by the collimator 4 can be converted into a point-ring beam through this optical path component 5. The central beam determines the penetration depth, and the outer ring is used to stabilize the welding keyhole, effectively reducing welding defects such as spatter and blasting, improving weld quality, and increasing welding efficiency.
[0024] Reference Figure 1 - Figure 3The connecting assembly 6 comprises a connecting plate 61 fixedly connected to the bottom surface of the connecting upper cover 3, the connecting plate 61 is symmetrically provided with a limiting hole 62 on the opposite surfaces, the top surface of the corner shell 1 is provided with an annular insertion slot 63, the opposite surfaces of the corner shell 1 are symmetrically provided with a sliding slot 64, the surface of the corner shell 1 is fixedly connected with a spring 65, the other end of the spring 65 is fixedly connected with a pull rod 66, the two ends of the pull rod 66 and located on the surface of one end of the spring 65 are fixedly connected with a limiting rod 67, the limiting rod 67 is pulled out from the inside of the sliding slot 64, at this time, the annular insertion slot 63 is aligned with the connecting plate 61 on the bottom surface of the connecting upper cover 3, the connecting plate 61 is inserted into the inside of the annular insertion slot 63, the sliding slot 64 and the limiting hole 62 are on the same horizontal line, at this time, the pull rod 66 is loosened, under the action of the spring 65, the limiting rod 67 is inserted into the inside of the limiting hole 62, the connecting upper cover 3 is limited, through the setting of the connecting assembly 6, only the pull rod 66 is pulled to drive the limiting rod 67 to move, the connecting upper cover 3 and the corner shell 1 can be disassembled and installed, without the need of a large number of bolts for installation, so that it does not need to carry any tool when installing, the disassembly and assembly between the corner shell 1 and the connecting upper cover 3 is convenient, at the same time, when the installation is completed, the parallel light beam emitted by the collimator 4 can be converted into a point annular light beam through the light path assembly 5, the divergence angle of the laser beam can be reduced, the energy density of the laser welding is improved, the high-energy-density laser beam can melt and weld the material more quickly, the welding speed and efficiency are improved, the connecting plate 61 is slidingly connected in the inside of the annular insertion slot 63, the limiting hole 62 and the sliding slot 64 are the same size, the limiting hole 62 and the sliding slot 64 are on the same horizontal line, the limiting rod 67 is slidingly connected in the inside of the sliding slot 64, the limiting rod 67 is slidingly connected in the inside of the limiting hole 62, and the pull rod 66 is arranged on the outside of the corner shell 1.
[0025] Working principle: in use, first pull the pull rod 66 and drive the limiting rod 67 from the inside of the sliding groove 64, at this time, the annular insertion slot 63 is aligned with the connecting plate 61 on the bottom surface of the connecting upper cover 3, the connecting plate 61 is inserted into the inside of the annular insertion slot 63, and the sliding groove 64 and the limiting hole 62 are in the same horizontal line, at this time, the pull rod 66 is loosened, under the action of the spring 65, the limiting rod 67 is inserted into the inside of the limiting hole 62, the connecting upper cover 3 is limited, through the setting of the connecting assembly 6, only the pull rod 66 is pulled to drive the limiting rod 67 to move, the disassembly and installation of the connecting upper cover 3 and the corner shell 1 can be realized, without the need of a large number of bolts for installation, so that it does not need to carry any tool during installation, and the disassembly and installation between the corner shell 1 and the connecting upper cover 3 is facilitated, after installation, the light source passes through the collimator 4 to convert the divergent light beam into a parallel light beam, then the reflection mirror 54 changes the propagation direction of the light beam, and the shape and divergence angle of the light beam are not changed in the process, so that the direction of the light beam is changed but still maintains the parallel light beam, then the parallel light beam passes through the single concave mirror 56 with a middle opening to make the parallel light beam diverge, so as to change the propagation path of the light beam, so that the light beam diverges outward, then the divergent light beam passes through the single convex mirror 50 with a middle opening to refocus the divergent light beam, so as to form a point annular light beam, during welding, the point annular light beam can optimize heat distribution, reduce spatter and crater defects, so as to reduce the generation of welding pores and cracks, and then improve the laser absorption rate in the welding process, stabilize the keyhole shape in the welding process, make the welding appearance smooth, improve the strength of the welding spot, and then improve the welding quality.
[0026] Finally, it should be pointed out that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made shall be included in the protection scope of the present application.
Claims
1. An optical arrangement for obtaining a point ring beam, comprising a corner cube housing (1), characterized in that: The right side wall surface of the corner shell (1) is fixedly connected with a fixed shell (2), the top surface of the corner shell (1) is provided with a connecting upper cover (3), the top of the connecting upper cover (3) is provided with a collimator (4), both ends of the corner shell (1) are provided with a light path assembly (5), and the connecting part of the connecting upper cover (3) and the corner shell (1) is provided with a connecting assembly (6). The light path assembly (5) comprises a sealing cover (51) fixedly connected to the left side of the corner shell (1), the inside of the sealing cover (51) is fixedly connected with a mounting plate (52), the surface of one end of the mounting plate (52) away from the sealing cover (51) is fixedly connected with a lens holder (53), the inner walls of the lens holder (53) are fixedly connected with a reflecting lens (54), both sides of the fixed shell (2) are fixedly connected with a locking ring (55), the left side of the fixed shell (2) is fixedly connected with a single concave lens (56) with a middle opening, the right side of the fixed shell (2) is fixedly connected with a single convex lens (50) with a middle opening, the surface of one end of the single concave lens (56) and the single convex lens (50) close to the locking ring (55) is fixedly connected with a plastic grease gasket (57), the surface of one end of the plastic grease gasket (57) away from the fixed shell (2) is fixedly connected with a protective lens (58), and the surface of one end of the protective lens (58) away from the plastic grease gasket (57) is fixedly connected with a protective gasket (59).
2. The optical path device of claim 1, wherein: The connecting assembly (6) comprises a connecting plate (61) fixedly connected to the bottom surface of the connecting upper cover (3), the opposite surfaces of the connecting plate (61) are symmetrically provided with limiting holes (62), the top surface of the corner shell (1) is provided with an annular insertion slot (63), the opposite surfaces of the corner shell (1) are symmetrically provided with sliding grooves (64), the surface of the corner shell (1) is symmetrically fixedly connected with springs (65), the other ends of the springs (65) are fixedly connected with pull rods (66), and the two ends of the pull rods (66) and the surface of one end of the springs (65) are fixedly connected with limiting rods (67).
3. The optical path device of claim 1, wherein: The corner shell (1) is provided with an inclined angle at one end close to the sealing cover (51), and the reflecting lens (54) is provided with an inclination.
4. The optical path device of claim 1, wherein: The locking ring (55), the single concave lens (56) with a middle opening, the single convex lens (50) with a middle opening, the plastic grease gasket (57), the protective lens (58) and the protective gasket (59) are all on the same horizontal line.
5. The optical path device of claim 1, wherein: The single concave lens (56) with a middle opening and the single convex lens (50) with a middle opening are oppositely arranged at both ends of the fixed shell (2).
6. The optical path device of claim 2, wherein: The connecting plate (61) is slidingly connected in the inside of the annular insertion slot (63), and the limiting holes (62) are the same size as the sliding grooves (64).
7. The optical path device of claim 2, wherein: The limiting holes (62) and the sliding grooves (64) are on the same horizontal line, and the limiting rods (67) are slidingly connected in the inside of the sliding grooves (64).
8. The optical path device of claim 2, wherein: The limiting rods (67) are slidingly connected in the inside of the limiting holes (62), and the pull rods (66) are arranged outside the corner shell (1).