CN116213978B - Laser welding fixture and laser welding machine - Google Patents
Laser welding fixture and laser welding machine Download PDFInfo
- Publication number
- CN116213978B CN116213978B CN202310503917.2A CN202310503917A CN116213978B CN 116213978 B CN116213978 B CN 116213978B CN 202310503917 A CN202310503917 A CN 202310503917A CN 116213978 B CN116213978 B CN 116213978B
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- Prior art keywords
- laser welding
- cylindrical section
- rotating shaft
- bearing
- welded
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Classifications
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides a laser welding fixture and a laser welding machine. The laser welding fixture is applied to end face welding of round workpieces and comprises an upper cover, a lower cover, bearings, a station positioning piece, a rotating shaft and a fastener, wherein the lower cover and the upper cover enclose an accommodating space, the bearings, the station positioning piece, the rotating shaft and the fastener are respectively arranged in the accommodating space, and the workpieces to be welded are arranged on the station positioning piece and the rotating shaft. The upper cover is including setting up the welding window in the centre, and the rotation axis is the cylindric structure of multistage that has different external diameters, and the rotation axis includes the first cylinder section of being connected with the work piece of waiting to weld and with the second cylinder section of station setting element butt, the external diameter of second cylinder section is greater than the external diameter of first cylinder section, the fastener cover establish on the station setting element and with the surface butt of second cylinder section, the station setting element cover is established on waiting to weld the work piece. The laser welding fixture provided by the invention can be used for fixing the workpiece to be welded, so that the welding seam is directly formed by one-time welding, and the dimensional accuracy after welding is higher than the traditional welding accuracy.
Description
Technical Field
The invention relates to the technical field of welding processing equipment, in particular to a laser welding fixture and a laser welding machine.
Background
The laser welding is a high-efficiency precise welding method which uses a laser beam with high energy density as a heat source, the laser welding heats the surface of a workpiece by laser radiation, surface heat is diffused to the inside by heat conduction, the workpiece is melted by controlling parameters such as the width, the energy, the peak power, the repetition frequency and the like of laser pulse, a specific molten pool is formed, and the laser welding has been successfully applied to precise welding of micro and small parts due to the unique advantages of the laser welding.
The existing laser welding technology generally comprises the steps of firstly fixing a position on a welding line by electric welding and then welding, however, workpieces to be welded may shake during spot welding, and welding precision is difficult to ensure.
Accordingly, there is a need in the art for improvements.
Disclosure of Invention
In the prior art, the laser welding technology generally performs welding after fixing a position on a welding line by electric welding, however, a workpiece to be welded may shake during spot welding, and it is difficult to ensure welding precision, so that it is necessary to provide a laser welding fixture and a laser welding machine for solving the above problems.
In a first aspect, the invention provides a laser welding fixture, which is applied to end face welding of a circular workpiece, and comprises an upper cover, a lower cover, a bearing, a station positioning part, a rotating shaft and a fastener, wherein the lower cover and the upper cover enclose an accommodating space, the bearing, the station positioning part, the rotating shaft and the fastener are respectively arranged in the accommodating space, the workpiece to be welded is arranged on the station positioning part and the rotating shaft, the upper cover comprises a welding window arranged in the middle, the rotating shaft is of a multi-section cylindrical structure with different outer diameters, the rotating shaft comprises a first cylindrical section connected with the workpiece to be welded and a second cylindrical section abutted with the station positioning part, the outer diameter of the second cylindrical section is larger than the outer diameter of the first cylindrical section, the fastener is sleeved on the station positioning part and abutted with the surface of the second cylindrical section, and the station positioning part is sleeved on the workpiece to be welded.
In one implementation, the bearings include a first bearing disposed between the workpiece to be welded and the upper cover, and a second bearing disposed between the rotating shaft and the lower cover.
In one implementation, the first bearing and the second bearing are ball thrust bearings.
In one implementation, the fastener is a snap spring.
In one implementation, the upper cover and the lower cover are detachably connected.
In one implementation, the upper cover and the lower cover are in threaded connection.
In one implementation, the rotary shaft further includes a third cylindrical section sleeved with the second bearing, and a fourth cylindrical section extending out of the lower cover, the third cylindrical section having an outer diameter smaller than an outer diameter of the second cylindrical section, and the fourth cylindrical section being configured to be connected with a driving motor.
In one implementation, the welding window is a slot-like structure extending from the center to the periphery.
In a second aspect, the invention also provides a laser welding machine comprising a laser welding fixture as described in any one of the preceding claims.
In one implementation, the laser welding machine further comprises a motor fixing support, a servo motor, a coupler, a fixing block and a laser welding head, wherein the motor fixing support is used for fixing the servo motor, the servo motor is connected with the laser welding clamp through the coupler, the laser welding clamp is fixed on the fixing block, the laser welding head is arranged above the upper cover, and the servo motor drives the rotating shaft to rotate automatically.
The beneficial effects are that: the laser welding fixture and the laser welding machine provided by the invention are mainly applied to end face welding of round workpieces, the rotating shaft is arranged to be connected with the workpieces to be welded, the rotating shaft is driven to rotate through the servo motor, the workpieces to be welded are driven to rotate, and meanwhile, the upper cover is provided with the welding window, so that the laser welding fixture can fix the workpieces to be welded, and meanwhile, welding laser is not shielded, a welding seam can be directly welded and formed at one time, and the dimensional precision after welding is higher than that of the traditional welding precision.
Drawings
FIG. 1 is a schematic view of the overall structure of a laser welding fixture provided by the invention;
FIG. 2 is an exploded view of the laser welding fixture shown in FIG. 1;
FIG. 3 is a schematic top view of the laser welding fixture shown in FIG. 1;
fig. 4 is a schematic view of the overall structure of the laser welding machine provided by the invention.
100 parts of a laser welding machine; 10. a laser welding jig; 11. an upper cover; 111. welding windows; 12. a lower cover; 131. a first bearing; 132. a second bearing; 14. a station positioning piece; 15. a rotation shaft; 151. a first cylindrical section; 152. a second cylindrical section; 153. a third cylindrical section; 154. a fourth cylindrical section; 16. a fastener; 17. a workpiece to be welded; 171. a first weld; 172. a second weld; 20. a motor fixing bracket; 30. a servo motor; 40. a coupling; 50. a fixed block; 60. and a laser welding head.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As used herein, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by one of ordinary skill in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, units, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Referring to fig. 1-3 in detail, fig. 1 is a schematic overall structure of a laser welding fixture according to the present invention, fig. 2 is an exploded structure of the laser welding fixture shown in fig. 1, and fig. 3 is a schematic top view of the laser welding fixture shown in fig. 1. The invention provides a laser welding fixture which is applied to end face welding of a circular workpiece and comprises an upper cover 11, a lower cover 12, bearings (not shown in the figure), a station positioning piece 14, a rotating shaft 15 and a fastening piece 16, wherein the lower cover 12 and the upper cover 11 enclose an accommodating space, and the bearings (not shown in the figure) are respectively arranged in the accommodating space. The workpiece 17 to be welded is arranged on the station positioning piece 14 and the rotating shaft 15, the upper cover 11 comprises a welding window 111 arranged in the middle, the rotating shaft 15 is of a multi-section cylindrical structure with different outer diameters, the rotating shaft 15 comprises a first cylindrical section 151 connected with the workpiece 17 to be welded and a second cylindrical section 152 abutted to the station positioning piece 14, the outer diameter of the second cylindrical section 152 is larger than that of the first cylindrical section 151, the fastening piece 16 is sleeved on the station positioning piece 14 and abutted to the surface of the second cylindrical section 152, and the station positioning piece 14 is sleeved on the workpiece 17 to be welded.
Specifically, the upper cover 11 has a welding window 111, where the welding window 111 is used for aligning a laser welding head with the workpiece 17 to be welded during laser welding, so that when the workpiece 17 to be welded is fixed, the welding laser is not blocked, and the subsequent laser welding wiping operation is convenient to be performed. In this embodiment, the welding window 111 is a slot-shaped structure extending from the center to the periphery, and the slot-shaped structure facilitates that, when the laser welding fixture 10 is self-rotated, the laser can be aligned with each weld of the workpieces 17 to be welded through the slot-shaped structure, specifically, the laser can be aligned with the first weld 171 through the slot-shaped structure, and the second weld 172 can be aligned during rotation.
The lower cover 12 and the upper cover 11 are detachably connected, and the workpiece 17 to be welded is fixed in a containing space surrounded by the lower cover 12 and the upper cover 11 through the detachable connection. The detachable connection includes a threaded connection, a snap connection and a hinge connection, and in this embodiment, the upper cover 11 and the lower cover 12 are in threaded connection.
Further, the bearings include a first bearing 131 and a second bearing 132, the first bearing 131 being disposed between the work piece 17 to be welded and the upper cover 11, the second bearing 132 being disposed between the rotation shaft 15 and the lower cover 12. The bearing is used for supporting and reducing the rotation friction force, and ensures the normal operation of equipment. Specifically, the first bearing 131 is configured to reduce a rotational friction force between the workpiece 17 to be welded and the upper cover 11, so that the workpiece 17 to be welded rotates relative to the upper cover 11 during the rotation process. The second bearing 132 is sleeved on one end of the rotating shaft 15, which is close to the lower cover 12, so as to reduce the rotating friction force between the rotating shaft 15 and the lower cover 12 and avoid the rotating shaft 15 from being blocked by the lower cover during rotation. Further, in the present embodiment, the first bearing and the second bearing are ball thrust bearings capable of receiving axial and radial loads at the time of high-speed rotation.
The station positioning piece 14 is connected with one end of the rotating shaft 15, which is close to the upper cover 11, and simultaneously fixes the workpiece 17 to be welded on the rotating shaft 15. The workpiece 17 to be welded is abutted to the center of the rotating shaft 15, and the station positioning piece 14 is sleeved on the workpiece 17 to be welded and used for positioning the workpiece 17 to be welded. In another implementation manner, the station positioning piece 14 is sleeved at the joint of the workpiece 17 to be welded and the rotating shaft 15, and meanwhile, the workpiece 17 to be welded and the rotating shaft 15 are sleeved and fixed, so that the workpiece 17 to be welded is positioned, and the workpiece 17 to be welded and the rotating shaft 15 are convenient to integrally rotate. Specifically, the station positioning member 14 has an open circular ring structure, and can be adjusted according to the size of the workpiece 17 to be welded, so as to be adapted to positioning a plurality of workpieces 17 to be welded.
The rotating shaft 15 includes a first cylindrical section 151 connected with the workpiece 17 to be welded, a second cylindrical section 152 abutting against the station positioning member 14, a third cylindrical section 153 sleeved and connected with the second bearing 132, and a fourth cylindrical section 154 extending out of the lower cover 12, where the first cylindrical section 151, the second cylindrical section 152, the third cylindrical section 153 and the fourth cylindrical section 154 are an integral structure. Further, the outer diameter of the second cylindrical section 152 is larger than the outer diameter of the first cylindrical section 151, the outer diameter of the third cylindrical section 153 is smaller than the outer diameter of the second cylindrical section 152, and the fourth cylindrical section 154 is used for connection with a driving motor. That is, the second cylindrical section 152 is a protruding ring, and is used for spacing the station positioning member 14 sleeved on the first cylindrical section 151 and the second bearing 132 sleeved on the third cylindrical section 153, so as to avoid the rotation operation of other parts on the rotating shaft 15. The rotation shaft 15 can pass through the.
In this embodiment, the fastening member 16 is disposed on the station positioning member 14, and fastens the station positioning member 14 and the rotating shaft 15, and the fastening member 16 may be a washer or a retainer ring, and in this embodiment, the fastening member 16 is a clamp spring. The snap spring is also called a retainer ring or a retaining ring, belongs to one type of fastening piece, is arranged in a shaft groove or a hole groove of a machine or equipment, and plays a role in preventing axial movement of a part on a shaft or a hole.
The present invention also provides a laser welder 100 comprising the laser welding fixture 10 of the present invention. Specifically, the laser welding machine 100 further includes a motor fixing bracket 20, a servo motor 30, a coupling 40, a fixing block 50, and a laser welding head 60, where the motor fixing bracket 20 is used to fix the servo motor 30, the servo motor 30 is connected with the laser welding fixture 10 through the coupling 40, the laser welding fixture 10 is fixed on the fixing block 50, the laser welding head 60 is disposed above the upper cover 11, and the servo motor 30 drives the rotating shaft 15 to perform self-rotation.
When the laser welding machine 100 works, the workpiece 17 to be welded is placed in the laser welding fixture 10 to be clamped, the laser welding fixture 10 is fixed through the fixing block 50, the servo motor 30 is arranged right below the laser welding fixture 10, the laser welding fixture 10 is connected with the servo motor 30 through the coupler 40, the laser welding head 60 is adjusted to be aligned with the welding window 111 of the upper cover 11, and when welding is carried out, the servo motor 30 drives the rotating shaft 15 and the workpiece 17 to be welded to rotate together, so that the laser welding head 60 can align laser with the first welding seam 171 and the second welding seam 172, and the workpiece 17 to be welded is subjected to one-time welding forming.
In general, the laser welding fixture 10 and the laser welding machine 100 provided by the invention are mainly applied to end face welding of round workpieces, the rotating shaft is connected with the workpieces to be welded, the rotating shaft is driven to rotate by the servo motor, and then the workpieces to be welded are driven to rotate, and meanwhile, the upper cover is provided with the welding window, so that the laser welding fixture can fix the workpieces to be welded, and meanwhile, welding laser is not shielded, a weld joint can be directly welded and formed at one time, and the dimensional precision after welding is higher than that of the traditional welding precision.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (6)
1. The laser welding fixture is characterized by comprising an upper cover, a lower cover, a bearing, a station positioning piece, a rotating shaft and a fastener, wherein the lower cover and the upper cover enclose an accommodating space, the bearing, the station positioning piece, the rotating shaft and the fastener are respectively arranged in the accommodating space, a workpiece to be welded is arranged on the station positioning piece and the rotating shaft, the upper cover comprises a welding window arranged in the middle, the rotating shaft is of a multi-section cylindrical structure with different outer diameters, the rotating shaft comprises a first cylindrical section connected with the workpiece to be welded and a second cylindrical section abutted with the station positioning piece, the outer diameter of the second cylindrical section is larger than the outer diameter of the first cylindrical section, the fastener is sleeved on the station positioning piece and abutted with the surface of the second cylindrical section, and the station positioning piece is sleeved on the workpiece to be welded; the bearing comprises a first bearing and a second bearing, the first bearing is arranged between the workpiece to be welded and the upper cover, and the second bearing is arranged between the rotating shaft and the lower cover; the rotary shaft further comprises a third cylindrical section which is sleeved and connected with the second bearing, and a fourth cylindrical section which extends out of the lower cover, wherein the outer diameter of the third cylindrical section is smaller than that of the second cylindrical section, and the fourth cylindrical section is used for being connected with a driving motor; the welding window is of a long and narrow hole-shaped structure extending from the center to the periphery.
2. The laser welding fixture of claim 1, wherein the first bearing and the second bearing are ball thrust bearings.
3. The laser welding fixture of claim 1, wherein the fastener is a snap spring.
4. The laser welding fixture of claim 1, wherein the upper cover and the lower cover are detachably connected.
5. The laser welding fixture of claim 4, wherein the upper cap and the lower cap are threaded.
6. The laser welding machine is characterized by comprising the laser welding fixture according to any one of claims 1-5, and further comprising a motor fixing support, a servo motor, a coupler, a fixing block and a laser welding head, wherein the motor fixing support is used for fixing the servo motor, the servo motor is connected with the laser welding fixture through the coupler, the laser welding fixture is fixed on the fixing block, the laser welding head is arranged above the upper cover, and the servo motor drives the rotating shaft to rotate automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310503917.2A CN116213978B (en) | 2023-05-06 | 2023-05-06 | Laser welding fixture and laser welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310503917.2A CN116213978B (en) | 2023-05-06 | 2023-05-06 | Laser welding fixture and laser welding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116213978A CN116213978A (en) | 2023-06-06 |
| CN116213978B true CN116213978B (en) | 2023-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310503917.2A Active CN116213978B (en) | 2023-05-06 | 2023-05-06 | Laser welding fixture and laser welding machine |
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| Country | Link |
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| CN (1) | CN116213978B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205111077U (en) * | 2015-10-10 | 2016-03-30 | 杭州山合江新能源技术有限公司 | Carrier device is used in welding of super capacitor module |
| CN206519689U (en) * | 2017-02-17 | 2017-09-26 | 东莞市耀凯精密塑胶五金有限公司 | A kind of many cave laser welding carriers |
| CN207417753U (en) * | 2017-10-27 | 2018-05-29 | 苏州听毅华环保科技有限公司 | A kind of workpiece rotation mechanism |
| CN208028742U (en) * | 2018-04-26 | 2018-10-30 | 荣成市华宇电机有限公司 | A kind of motor stator welding equipment |
| CN109909612A (en) * | 2019-04-16 | 2019-06-21 | 中山汉通激光设备有限公司 | For welding the laser-beam welding machine of the lower cylindrical work of circularity |
| CN211939689U (en) * | 2019-12-26 | 2020-11-17 | 浙江雄泰家居用品股份有限公司 | Welding fixture of double-layer vacuum cup |
| CN115383378A (en) * | 2022-07-27 | 2022-11-25 | 中国航发南方工业有限公司 | Self-positioning welding fixture and welding method for turbine assembly |
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2023
- 2023-05-06 CN CN202310503917.2A patent/CN116213978B/en active Active
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| CN116213978A (en) | 2023-06-06 |
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