CN115255698A - Seamless welding aluminum door and window and seamless welding method - Google Patents
Seamless welding aluminum door and window and seamless welding method Download PDFInfo
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- CN115255698A CN115255698A CN202210975416.XA CN202210975416A CN115255698A CN 115255698 A CN115255698 A CN 115255698A CN 202210975416 A CN202210975416 A CN 202210975416A CN 115255698 A CN115255698 A CN 115255698A
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- aluminum
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- 238000003466 welding Methods 0.000 title claims abstract description 99
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005498 polishing Methods 0.000 claims abstract description 54
- 238000003825 pressing Methods 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 229910000838 Al alloy Inorganic materials 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a seamless welding aluminum door and window and a seamless welding method, wherein the seamless welding aluminum door and window comprises at least four aluminum profiles, the aluminum profiles are spliced to form a door and window frame, splicing seams are formed on two sides of the aluminum profiles, and welding and polishing are carried out at the splicing seams; the splicing seams form an included angle of forty-five degrees with the side edges of the door and window frames. The invention is used as a seamless welding aluminum door and window and a seamless welding method, and adopts overhead welding, thereby effectively avoiding the surface depression of the aluminum profile caused by overhigh welding temperature, and grinding the bulge through subsequent grinding, thereby completely eliminating the welding trace; when the surface of the aluminum profile is subjected to primary polishing, the oxide layer on the surface of the aluminum profile can be quickly removed through reciprocating polishing, so that the subsequent welding operation can be smoothly performed, and the problem that the aluminum profile cannot be welded through during welding can be avoided; the seamless welding aluminum door and window is attractive in appearance and long in service life.
Description
Technical Field
The invention belongs to the technical field of aluminum door and window welding, and particularly relates to a seamless welding aluminum door and window and a seamless welding method.
Background
Traditional al-alloy doors and windows will generally adopt 45 ° concatenation, assemble the frame 90 degrees through the angle machine, this will lead to forming a very sharp pointed angle, the gap that can see. Due to the technical problem of traditional corner-combining splicing, the flatness of the outer aluminum and no concave-convex feeling are difficult to ensure fundamentally; the aluminum alloy of the outdoor side of the door and window of the splicing technology can cause the phenomenon of water seepage due to gaps because of the expansion with heat and contraction with cold which are caused by seasonal changes, so that the internal section bar is corroded, and the service life of the door and window is greatly shortened.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a seamless welding aluminum door window and a seamless welding method.
The technical scheme adopted by the invention is as follows:
a seamless welding aluminum door and window and a seamless welding method comprise at least four aluminum profiles, wherein the aluminum profiles are spliced to form a door and window frame, splicing seams are formed on two sides of each aluminum profile, and the splicing seams are welded and polished; the splicing seams form an included angle of forty-five degrees with the side edges of the door and window frames.
A seamless welding method, comprising the steps of:
s1, removing an oxidation layer: the surface of the aluminum profile is polished in a reciprocating manner along the direction of the splicing seam, and the polishing areas are the splicing seam and two sides of the splicing seam;
s2, overhead welding: welding the aluminum profile along the direction of the splicing seam on the lower side of the aluminum profile;
s3, directional polishing: polishing the surface of the aluminum profile along the direction of the splicing seam, wherein the polishing area is the splicing seam and the two sides of the splicing seam, and the polishing direction is one-way.
Preferably, before the step S1, the aluminum profile is horizontally placed on a workbench, a gap is formed in one side of the workbench, and the splicing seam corresponds to the gap.
Preferably, in step S1, a polishing mechanism is used to remove the oxide layer, the polishing mechanism is detachably mounted on the upper side of the worktable, the polishing mechanism includes a grinding wheel and a polishing motor, the grinding wheel is fixedly arranged on an output shaft of the polishing motor, and the grinding wheel and the splicing seam are located on the same vertical plane.
Preferably, in step S2, a welding mechanism is used for overhead welding, a support frame is fixedly arranged on the lower side of the workbench, a first guide rail is fixedly arranged on the support frame, the welding mechanism is slidably arranged on the first guide rail, the welding mechanism further comprises a sliding part, a welding cylinder is fixedly arranged on one side of the sliding part, a welding gun is fixedly arranged on the piston end of the welding cylinder, a wire box is fixedly arranged on one side of the welding gun, and the welding gun and the splicing seam are located on the same vertical plane.
Preferably, in step S3, the polishing mechanism is used for directional polishing, a bearing frame is fixedly arranged on the upper side of the workbench, a second guide rail is fixedly arranged on the bearing frame, the polishing mechanism is slidably arranged on the second guide rail, the polishing mechanism further comprises another sliding part, the sliding part is slidably connected with the second guide rail, a polishing cylinder is fixedly arranged on one side of the sliding part, and a piston end of the polishing cylinder is connected with the polishing motor through a bracket.
Preferably, two cushion blocks are arranged on one side of the workbench, the two cushion blocks are respectively positioned on two sides of the notch, and the two cushion blocks form a ninety-degree included angle.
Preferably, a working space is arranged in the sliding part, a control motor is fixedly arranged on the inner wall of one side of the working space, a rotating shaft is controlled at one end of the control motor, a gear is fixedly arranged on the rotating shaft, a dovetail groove is arranged on one side of the working space, the first guide rail and the second guide rail are respectively arranged in the dovetail groove in a sliding mode, the dovetail groove penetrates through the sliding part, the gear and the dovetail groove are located on the same vertical plane, racks are arranged on one sides of the first guide rail and the second guide rail, and the gear is meshed with the racks.
Preferably, two limiting cylinders are fixedly arranged on one side of the bearing frame, and pressing blocks are detachably mounted at the piston ends of the two limiting cylinders respectively.
Preferably, a baffle is fixedly arranged at the piston end of the limiting cylinder, and the pressing block is fixedly arranged on the baffle.
The beneficial effects of the invention are as follows: the invention is used as a seamless welding aluminum door and window and a seamless welding method, and the overhead welding is adopted, so that the surface depression of an aluminum profile caused by overhigh welding temperature can be effectively avoided, and the bulge can be ground by subsequent polishing, so that the welding trace completely disappears; when the surface of the aluminum profile is polished for the first time, the oxide layer on the surface of the aluminum profile can be quickly removed through reciprocating polishing, the subsequent welding operation is smoothly carried out, and the problem that the aluminum profile cannot be welded through during welding can be avoided; the polishing mechanism can not only remove the oxide layer, but also can polish directionally, and during directional polishing, the grinding wheel only polishes the splicing seam along a certain direction, so that polishing traces are fine and uniform, and the welding traces can be covered; the grinding wheel can be flexibly disassembled and replaced to meet different polishing requirements. The seamless welding aluminum door and window is attractive in appearance and long in service life.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram of a grinding mechanism of the present invention;
FIG. 2 is a schematic view of the welding structure of the present invention;
FIG. 3 is an enlarged schematic view of FIG. 1 at A according to the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 2B of the present invention;
FIG. 5 is a schematic cross-sectional view of a slider according to the present invention;
fig. 6 is a schematic view of the seamless welded aluminum door and window structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The following describes a specific embodiment of the present invention with reference to fig. 1-6, and a seamless welded aluminum door and window comprises at least four aluminum profiles 18, wherein the aluminum profiles 18 are spliced to form a door and window frame, splicing seams 34 are formed on two sides of the aluminum profiles 18, and welding and polishing are performed at the splicing seams 34; the splicing seam 34 forms a forty-five degree included angle with the side edge of the door and window frame. The welding rod material that the welding used is the same with the material of aluminium alloy 18, and the welding seam is through polishing and 18 levels of aluminium alloy, and aluminium alloy 18 after the welding forms a whole.
A seamless welding method, comprising the steps of:
s1, removing an oxidation layer: the surface of the aluminum profile 18 is polished back and forth along the direction of the splicing seam 34, and the polishing areas are the splicing seam 34 and two sides of the splicing seam 34;
s2, overhead welding: on the underside of the aluminum profile 18, welding it in the direction of the splicing seam 34;
s3, directional polishing: and (3) polishing the surface of the aluminum profile 18 along the direction of the splicing seam 34, wherein the polishing areas are the splicing seam 34 and two sides of the splicing seam 34, and the polishing direction is one-way.
Wherein weld up can effectively avoid, and welding temperature is too high leads to aluminium alloy 18 surface depression, weld up may lead to aluminium alloy 18 surface arch, but can grind flat arch through follow-up polishing to make the welding trace disappear completely.
Advantageously, before step S1, the aluminum profile 18 is horizontally placed on the workbench 15, a notch 21 is provided on one side of the workbench 15, and the splicing seam 34 corresponds to the notch 21. During welding, the aluminum profile 18 needs to be ensured to be in a horizontal state, meanwhile, the splicing seam 34 cannot contact the workbench 15, and the splicing seam 34 needs to be exposed to air.
Advantageously, in step S1, an oxide layer is removed by using a grinding mechanism, the grinding mechanism is detachably mounted on the upper side of the workbench 15, the grinding mechanism includes a grinding wheel 24 and a grinding motor 25, the grinding wheel 24 is fixedly arranged on an output shaft of the grinding motor 25, and the grinding wheel 24 and the splicing seam 34 are located on the same vertical plane. When polishing the surface of the aluminum profile 18 for the first time, oxide layers on the surface of the aluminum profile 18 can be removed rapidly through reciprocating polishing, so that subsequent welding operation can be performed smoothly, and the problem that the aluminum profile 18 cannot be welded through during welding can be avoided.
Beneficially, in step S2, a welding mechanism is used for overhead welding, a support frame 16 is fixedly arranged on the lower side of the workbench 15, a first guide rail 17 is fixedly arranged on the support frame 16, the welding mechanism is slidably arranged on the first guide rail 17, the welding mechanism further comprises a sliding part 22, a welding cylinder 26 is fixedly arranged on one side of the sliding part 22, a welding gun 27 is fixedly arranged at the piston end of the welding cylinder 26, a wire box 28 is fixedly arranged on one side of the welding gun 27, and the welding gun 27 and the splicing seam 34 are located on the same vertical plane. During overhead welding, the vertical distance between the welding gun 27 and the splicing seam 34 is firstly adjusted through the welding cylinder 26, and then the welding gun 27 needs to pass through the splicing seam 34 at a constant speed along the surface of the aluminum profile 18, so that the welding seam is flat and continuous.
Advantageously, in step S3, the grinding mechanism is used for directional grinding, a bearing frame 11 is fixedly arranged on the upper side of the workbench 15, a second guide rail 20 is fixedly arranged on the bearing frame 11, the grinding mechanism is slidably arranged on the second guide rail 20, the grinding mechanism further comprises another sliding part 22, the sliding part 22 is slidably connected with the second guide rail 20, a grinding cylinder 23 is fixedly arranged on one side of the sliding part 22, and a piston end of the grinding cylinder 23 is connected with the grinding motor 25 through a bracket. The polishing mechanism can remove the oxide layer and can perform directional polishing, and the directional polishing is different from the removal of the oxide layer in that the grinding wheel 24 only polishes the splicing seam 34 along a certain direction, so that polishing traces are fine and uniform, and the welding traces can be covered; the grinding wheel 24 can be flexibly disassembled and replaced to meet different grinding requirements.
Advantageously, two pads 19 are provided on one side of the table 15, the two pads 19 are respectively located on two sides of the notch 21, and the two pads 19 have an included angle of ninety degrees. No matter when polishing or welding, in order to avoid the position of the aluminum profile 18 from deviating, the position of the aluminum profile is limited by the cushion block 19, and when directional polishing is carried out, the aluminum profile 18 tends to move towards the side of the extrusion cushion block 19 by controlling the moving direction and the rotating direction of the grinding wheel 24.
Beneficially, a working space 29 is arranged inside the sliding part 22, a control motor 30 is fixedly arranged on the inner wall of one side of the working space 29, a rotating shaft 31 is controlled at one end of the control motor 30, a gear 32 is fixedly arranged on the rotating shaft 31, a dovetail groove 33 is arranged on one side of the working space 29, the first guide rail 17 and the second guide rail 20 are respectively arranged in the dovetail groove 33 in a sliding mode, the dovetail groove 33 penetrates through the sliding part 22, the gear 32 and the dovetail groove 33 are located on the same vertical plane, racks are arranged on one sides of the first guide rail 17 and the second guide rail 20, and the gear 32 is meshed with the racks. Under the meshing of the gear and the rack, the sliding part 22 can have a stable moving mode, and the translation requirements of the grinding wheel 24 and the welding gun 27 during grinding and welding are met.
Beneficially, two limiting air cylinders 12 are fixed on one side of the bearing frame 11, and pressing blocks 14 are detachably mounted at piston ends of the two limiting air cylinders 12 respectively. After the aluminum profile 18 is placed, the pressing block 14 is controlled to clamp the aluminum profile through the limiting cylinder 12, so that the posture of the aluminum profile 18 is more stable, the requirement for quick rotation and movement of the grinding wheel 24 during grinding can be met, and the machining efficiency is improved.
Advantageously, a baffle 13 is fixedly arranged at the piston end of the limiting cylinder 12, and the pressing block 14 is fixedly arranged on the baffle 13. The pressing block 14 is used for pressing the aluminum profiles 18, and the baffle 13 is used for separating the aluminum profiles 18, so that a plurality of aluminum profiles 18 can be placed when the device is used for processing two aluminum profiles 18 of an L shape, wherein the two aluminum profiles are in a group, and the working efficiency is improved; and the baffle 13 is matched with the cushion block 19, so that the aluminum profile 18 can be clamped tightly, and the aluminum profile 18 is not easy to deform and collapse due to high temperature during welding.
The working principle of the invention is as follows:
seamless door and window adopts seamless welding to have outstanding surfacing finish, avoids the surperficial unevenness and the gap of traditional concatenation technology, uses aluminium door and window whole more to have decorative property, plays better syllable-dividing, thermal-insulated effect.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (10)
1. The utility model provides a seamless welding aluminium door and window which characterized in that: the door and window frame comprises at least four aluminum profiles, wherein the aluminum profiles are spliced to form a door and window frame, splicing seams are formed on two sides of each aluminum profile, and the splicing seams are welded and polished; the splicing seams form an included angle of forty-five degrees with the side edges of the door and window frames.
2. A seamless welding method for producing a seamless welded aluminum door and window according to claim 1, comprising the steps of:
s1, removing an oxidation layer: the surface of the aluminum profile is polished in a reciprocating manner along the direction of a splicing seam, and the polishing area is the splicing seam and two sides of the splicing seam;
s2, overhead welding: welding the aluminum profile along the direction of the splicing seam on the lower side of the aluminum profile;
s3, directional polishing: polishing the surface of the aluminum profile along the direction of the splicing seam, wherein the polishing area is the splicing seam and two sides of the splicing seam, and the polishing direction is one-way.
3. A seamless welding method according to claim 2, characterized in that: before the step S1, the aluminum profile is horizontally placed on a workbench, one side of the workbench is provided with an opening, and the splicing seam corresponds to the opening.
4. A seamless welding method according to claim 3, characterized in that: in the step S1, an oxide layer is removed by using a grinding mechanism, the grinding mechanism is detachably mounted on the upper side of the workbench, the grinding mechanism comprises a grinding wheel and a grinding motor, the grinding wheel is fixedly arranged on an output shaft of the grinding motor, and the grinding wheel and the splicing seam are located on the same vertical plane.
5. A seamless welding method according to claim 3, characterized in that: in step S2, a welding mechanism is used for overhead welding, a support frame is fixedly arranged on the lower side of the workbench, a first guide rail is fixedly arranged on the support frame, the welding mechanism is arranged on the first guide rail in a sliding mode, the welding mechanism further comprises a sliding part, a welding cylinder is fixedly arranged on one side of the sliding part, a welding gun is fixedly arranged on the piston end of the welding cylinder, a wire box is fixedly arranged on one side of the welding gun, and the welding gun and the splicing seam are located on the same vertical plane.
6. A seamless welding method according to claim 3, characterized in that: in step S3, the polishing mechanism is used for directional polishing, a bearing frame is fixedly arranged on the upper side of the workbench, a second guide rail is fixedly arranged on the bearing frame, the polishing mechanism is arranged on the second guide rail in a sliding mode, the polishing mechanism further comprises another sliding part, the sliding part is connected with the second guide rail in a sliding mode, a polishing cylinder is fixedly arranged on one side of the sliding part, and the piston end of the polishing cylinder is connected with the polishing motor through a support.
7. A seamless welding method according to claim 3, characterized in that: and two cushion blocks are arranged on one side of the workbench, are respectively positioned on two sides of the opening, and have an included angle of ninety degrees.
8. A seamless welding method according to claim 5 or 6, characterized in that: the inside workspace that is equipped with of slider, the fixed control motor that is equipped with on one side inner wall of workspace, the one end control system of control motor has the axis of rotation, the fixed gear that is equipped with in the axis of rotation, one side of workspace is equipped with the dovetail, first guide rail with the second guide rail slides respectively and sets up in the dovetail, the dovetail runs through the slider, the gear with the dovetail is located same vertical plane, first guide rail with one side of second guide rail all is equipped with the rack, the gear with rack toothing.
9. A seamless welding method according to claim 6, characterized in that: two fixed spacing cylinders that are equipped with of one side of bearing frame, two the piston end of spacing cylinder is demountable installation respectively has the briquetting.
10. A seamless welding method according to claim 9, characterized in that: and a baffle is fixedly arranged at the piston end of the limiting cylinder, and the pressing block is fixedly arranged on the baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210975416.XA CN115255698A (en) | 2022-08-15 | 2022-08-15 | Seamless welding aluminum door and window and seamless welding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210975416.XA CN115255698A (en) | 2022-08-15 | 2022-08-15 | Seamless welding aluminum door and window and seamless welding method |
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| CN115255698A true CN115255698A (en) | 2022-11-01 |
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| CN202210975416.XA Pending CN115255698A (en) | 2022-08-15 | 2022-08-15 | Seamless welding aluminum door and window and seamless welding method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115971658A (en) * | 2023-03-21 | 2023-04-18 | 山东华晶玻璃有限公司 | Laser welding equipment |
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