CN210908518U - Marine crane base destressing concentration movable laser impact forging welding device - Google Patents
Marine crane base destressing concentration movable laser impact forging welding device Download PDFInfo
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- CN210908518U CN210908518U CN201921224236.8U CN201921224236U CN210908518U CN 210908518 U CN210908518 U CN 210908518U CN 201921224236 U CN201921224236 U CN 201921224236U CN 210908518 U CN210908518 U CN 210908518U
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Abstract
The utility model discloses a maritime work crane base destressing concentration movable laser shock forges and beats welding set, forge and beat equipment, remove supporting platform, driving motor, guide rail and computer control system including laser cladding welding equipment, laser shock. Through laying the circular guide rail coaxial with the base at the hoist base periphery, the guide rail is put on the shelf and is removed supporting platform, laser deposition welding equipment and laser impact forge the equipment and install on removing supporting platform, adopt the motor as actuating mechanism, computer control system assigns instruction control laser deposition welding equipment and laser impact forge equipment and send welding and strike and forge two bundles of laser action and wait to process the region, assign instruction control motor drive removal supporting platform and move on the guide rail simultaneously, thereby realize the removal welding and the reinforcement of part under the motionless condition of part waiting to process. Meanwhile, the processed welding seam quality information is transmitted back to the computer control system in real time through the welding seam quality monitoring and collecting equipment.
Description
Technical Field
The utility model relates to a large-scale ocean engineering equips base welding and reinforces technical field, especially relates to a maritime work hoist base destressing concentration movable laser shock forges and beats welding set.
Background
Welding, also known as fusion or melt bonding, is a manufacturing process and technique for joining metals or other thermoplastic materials by means of heat, high temperature or high pressure. Laser welding is an efficient precision welding method using a laser beam with high energy density as a heat source, and is one of important aspects of related technical application of laser processing materials. The laser is applied to the welding technology to greatly promote the development of the welding technology, and has the unique advantages of high quality, high precision, low deformation, high efficiency and high speed, can be welded at room temperature or under special conditions, simple equipment and devices and the like, is widely applied to the industrial field, is successfully applied to the precision welding of micro and small parts, and has increasingly wide application in the fields of maritime work equipment manufacturing, aerospace, automobile industry, powder metallurgy, biomedical microelectronic industry and the like. However, the metal workpiece generates residual stress in the cold and hot processing process, and a welding seam area sequentially undergoes several important stages of rapid heating melting, rapid solidification crystallization, solid phase change and the like in the welding process to form a large amount of non-equilibrium solidification structures, so that the structure forms of the regions are greatly different, and therefore, the welded parts have the characteristic defects of high residual stress, short fatigue life, poor mechanical property, obvious crack tendency and the like, and most of the residual stress in the parts near the yield limit shows huge harmful effects due to the maximum influence of the residual stress: such as lowering the actual strength and fatigue limit of the workpiece, causing stress corrosion and brittle fracture, and causing deformation of the part due to relaxation of residual stress, greatly affecting the dimensional accuracy of the workpiece. Therefore, fatigue failure due to residual stress is not negligible, and it is essential to reduce and eliminate the residual stress of parts.
The most common method for eliminating residual stress at present is to perform a follow-up welding treatment and a post-welding heat treatment on a welded workpiece. The existing welding-following processing technology is lack of intellectualization and precision, has certain limitation on the processing of a welding part with a complex structure, and can not better eliminate the defects of the welding part. The post-welding treatment is to cool the welding area and then treat the welding area, the plastic deformation of the post-welding treatment is small, the defects of residual stress, deformation, microcrack and the like in the welding area are difficult to completely eliminate, the complexity of a welding piece heating device is multiplied along with the increase of the size and the structural complexity of a deposited part, the reheating efficiency of the welding piece after cooling is low, and energy is wasted.
With the implementation of the strategy of ' one-way in one and ' 2025 in China manufacturing ', the ocean engineering equipment is in line with a new development opportunity, and the super-huge ocean engineering platform hoisting equipment has great significance for improving the high-end ocean engineering equipment in China and promoting the development of the ocean engineering equipment, and is necessary equipment for ocean engineering operation. The crane base is used as one of key parts of a hoisting device (the hoisting capacity can reach up to thousands of tons) of an extra-large ocean engineering platform, and the reliability, the stability and the service life of the hoisting device are directly influenced by the welding quality of the crane because the crane has large overturning moment and the stress is also the largest. However, the crane base is large in size and heavy in weight, and is difficult to clamp and rotate during welding, and is difficult to machine by using a fixed laser welding device.
The existing equipment and technology are mainly applied to the stress-relief strengthening processing of micro and small parts, most of the existing equipment is fixed and fixed by laser processing equipment, and the processing of different parts of the parts is realized by clamping a workpiece by a mechanical arm and rotating the workpiece. The mode has low efficiency and wastes time and labor for strengthening processing of large-scale marine equipment parts, special heating equipment, tool fixture equipment and mechanical hands are needed, and the characteristic defects of high residual stress, short fatigue life, poor mechanical property, obvious crack tendency and the like of a welded seam area after welding cannot be well solved. Accordingly, further improvements and improvements are needed in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a marine crane base destressing concentration movable laser shock forges and beats welding set.
The purpose of the utility model is realized through the following technical scheme:
a movable laser impact forging welding device for removing stress concentration of a marine crane base mainly comprises laser deposition welding equipment for melting a welding wire and base metal and enabling the welding wire and the base metal to form a welding molten pool, laser impact forging equipment for forging the metal in a state that the molten pool is rapidly cooled to be in a solid plastic deformation state, a movable supporting platform, a driving motor, a guide rail for guiding the movable supporting platform to move around the crane base in a circumferential mode, and a computer control system for controlling all parts to work cooperatively.
Specifically, the guide rail adopts a double-layer guide rail structure design and comprises an inner layer guide rail and an outer layer guide rail. The guide rail encircles the fixed setting of base, just inlayer guide rail and outer guide rail are concentric and the interval sets up. The movable supporting platform is arranged on the guide rails (the inner layer guide rail and the outer layer guide rail) and is in rolling connection with the guide rails, so that the movable supporting platform keeps balance on the guide rails and can reciprocate on the guide rails. The driving motor is arranged on the movable supporting platform and is connected with the transmission mechanism to drive the movable supporting platform to move back and forth on the guide rail. The laser deposition welding equipment and the laser impact forging equipment are both installed on the movable supporting platform, and the laser deposition welding equipment is located in front of the laser impact forging equipment. The computer control system is respectively and electrically connected with the driving motor, the laser deposition welding equipment and the laser impact forging equipment through cables so as to control all parts to operate orderly. The cables are laid along the guide rails and the moving direction of the moving supporting platform.
Further, for promoting laser shock forging welding set's welding effect and quality, laser shock forging welding set is still including the welding seam quality monitoring collection equipment who is used for monitoring the welding seam quality. The welding seam quality monitoring and collecting equipment is installed on the movable supporting platform, is positioned behind the laser impact forging equipment and is electrically connected with the computer control system.
As the utility model discloses an optimal scheme, in order to promote guide rail to the supporting effect and the bulk strength of removing supporting platform, the guide rail adopts T-shaped groove circular arc structural design, with the concentric coaxial setting of base, and its radius is greater than the base radius.
As the preferred scheme of the utility model, for convenient dismantlement and the installation to the guide rail, the guide rail is formed by the concatenation of the unanimous half-circular arc guide rail of both ends shape structure.
As the preferred scheme of the utility model, for improving welding quality and efficiency, laser cladding welding equipment and laser impact forge the distance scope between the laser beam that the produced two bundles of functions of equipment are different and establish to 0 to 1 millimeter order of magnitude, and the time interval of beginning to act on is within 1 second, and two bundles of laser strengthen the synchronous working all the time in the course of working at whole welding.
The utility model discloses a working process and principle are: the utility model discloses a peripheral circular guide rail of laying with the base is coaxial at the hoist base, the guide rail is put on the shelf and is removed supporting platform, laser cladding welding equipment and laser shock forge the equipment and install on removing supporting platform, adopt the motor as actuating mechanism, computer control system assigns instruction control laser cladding welding equipment and laser shock forge the equipment send the welding and strike and forge two bundles of laser action and treat the processing region, assign instruction control motor drive removal supporting platform and move on the guide rail simultaneously, thereby realize the removal welding and the reinforcement of part under the motionless condition of part of treating processing. Meanwhile, the processed welding seam quality information is transmitted back to the computer control system in real time through the welding seam quality monitoring and collecting equipment. In the process, the first beam of deposition welding laser generates a welding effect, and the second beam of impact forging laser acts on a welding pool in the optimal forging temperature window period to play a strengthening effect. The laser deposition welding equipment, the laser impact forging equipment, the motor and the weld quality real-time monitoring and collecting system are linked in real time, so that the real-time visual movable welding of the large marine crane base is realized, and the weld quality and the welding efficiency are improved. In addition, the invention fully utilizes the heat effect and the shock wave mechanical effect through the double laser beams, saves labor and time, saves special heating equipment, tool clamp equipment and mechanical arms, and has great economic benefit and social benefit.
Compared with the prior art, the utility model discloses still have following advantage:
(1) the utility model provides a maritime work crane base destressing concentration movable laser strikes to forge welding set can carry out operations such as high efficiency, destressing concentration, movable laser strikes to forge welding and visual monitoring of welding seam quality to large-scale maritime work crane base.
(2) The utility model provides a marine crane base destressing concentration movable laser strikes and beats welding set can reduce the residual stress of part effectively, improve fatigue life and mechanical properties and effectively prevent the crackle emergence and extension.
(3) The utility model provides a marine crane base destressing concentration movable laser shock forges and beats welding set's easy dismounting saves labour and saves time and save dedicated firing equipment, frock clamp equipment and manipulator, has very big economic benefits and social.
Drawings
Fig. 1 is the structural schematic diagram of the movable laser shock forging and welding device for removing stress concentration of the marine crane base provided by the utility model.
Fig. 2 is a partial schematic view of a laser shock peening apparatus provided by the present invention at a weld.
The reference numerals in the above figures illustrate:
the method comprises the following steps of 1-guide rail, 2-computer control system, 3-laser deposition welding equipment, 4-laser impact forging equipment, 5-welding seam quality monitoring and collecting equipment, 6-driving motor/motor, 7-movable supporting platform, 8-base, 9-welding seam and 10-welding molten pool.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be further described with reference to the accompanying drawings and examples.
Example 1:
as shown in fig. 1 and fig. 2, the present embodiment discloses a movable laser shock forging welding device for removing stress concentration of a marine crane base, which mainly comprises a laser deposition welding device 3 for melting a welding wire and a base 8 metal and forming a welding molten pool 10, a laser shock forging device 4 for forging the metal in a state that the molten pool is rapidly cooled to a solid plastic deformation state, a movable supporting platform 7, a driving motor 6, a guide rail 1 for guiding the movable supporting platform 7 to move around the crane base 8, and a computer control system 2 for controlling the cooperative work of all components.
Specifically, the guide rail 1 adopts a double-layer guide rail structure design and comprises an inner layer guide rail and an outer layer guide rail. The guide rail 1 is fixedly arranged around the base 8, and the inner guide rail and the outer guide rail are concentric and arranged at intervals. The movable supporting platform 7 is arranged on the guide rail 1 (inner layer guide rail and outer layer guide rail) and is in rolling connection with the guide rail 1, so that the movable supporting platform 7 keeps balance on the guide rail 1 and can move on the guide rail 1 in a reciprocating mode. The driving motor 6 is arranged on the movable supporting platform 7 and is connected with a transmission mechanism to drive the movable supporting platform 7 to move back and forth on the guide rail 1. The laser deposition welding equipment 3 and the laser impact forging equipment 4 are both installed on a movable supporting platform 7, and the laser deposition welding equipment 3 is located in front of the laser impact forging equipment 4. The computer control system 2 is electrically connected with the driving motor 6, the laser deposition welding equipment 3 and the laser impact forging equipment 4 through cables respectively so as to control all the parts to operate orderly. The cables are laid along the direction of movement of the guide rail 1 and the mobile support platform 7.
Further, for promoting laser shock forging welding set's welding effect and quality, laser shock forging welding set is still including the welding seam quality monitoring collection equipment 5 that is used for monitoring the 9 quality of welding seam. And the welding seam quality monitoring and acquisition equipment 5 is arranged on the movable supporting platform 7, is positioned behind the laser impact forging equipment 4 and is electrically connected with the computer control system 2.
As the utility model discloses an optimal scheme, in order to promote the supporting effect and the bulk strength of guide rail 1 to removing supporting platform 7, guide rail 1 adopts T-shaped groove circular arc structural design, with the concentric coaxial setting of base 8, and its radius is greater than the 8 radiuses of base.
As the preferred scheme of the utility model, for convenient dismantlement and the installation to guide rail 1, guide rail 1 is formed by the concatenation of the unanimous half-circular arc guide rail of both ends shape structure.
As the preferred scheme of the utility model, for improving welding quality and efficiency, laser cladding welding equipment 3 and laser impact forge to beat the distance scope between the laser beam that two bundles of functions produced of equipment 4 and establish to 0 to 1 millimeter of order of magnitude, and the time interval of beginning to act on is within 1 second, and two bundles of laser strengthen the synchronous working all the time in the course of working at whole welding.
The utility model discloses a working process and principle are: the utility model discloses a peripheral laying of 8 with the coaxial circular guide rail of base of hoist base, 1 erects on the guide rail and removes supporting platform 7, laser cladding welding equipment 3 and laser shock forge equipment 4 and install on removing supporting platform 7, adopt motor 6 as actuating mechanism, computer control system 2 assigns instruction control laser cladding welding equipment 3 and laser shock forge equipment 4 and send out the welding and strike and forge two bundles of laser effects and treat the processing region, assign instruction control motor 6 drive simultaneously and remove supporting platform 7 and move on guide rail 1, thereby realize the removal welding and the reinforcement of part under the motionless condition of part of waiting to process. Meanwhile, the quality information of the processed welding seam 9 is transmitted back to the computer control system 2 in real time through the welding seam quality monitoring and collecting device 5. In the process, a first beam of deposition welding laser generates a welding effect, and a second beam of impact forging laser acts on the welding pool 10 in the optimal forging temperature window period to play a role in strengthening. The laser deposition welding equipment 3, the laser impact forging equipment 4, the motor 6 and the weld quality real-time monitoring and collecting system are linked in real time, so that real-time visual movable welding of the large marine crane base 8 is realized, and the quality and the welding efficiency of the weld 9 are improved. In addition, the invention fully utilizes the heat effect and the shock wave mechanical effect through the double laser beams, saves labor and time, saves special heating equipment, tool clamp equipment and mechanical arms, and has great economic benefit and social benefit.
Example 2:
the embodiment discloses a movable laser impact forging welding device for removing stress concentration of a marine crane base, which comprises a guide rail 1, a computer control system 2, a laser cladding welding device 3, a laser impact forging device 4, a welding seam quality monitoring and collecting device 5, a motor 6, a movable supporting platform 7 and a crane base 8.
In the structure, the guide rail 1 is laid on the periphery of the crane base 8, the movable supporting platform 7 is erected on the guide rail 1, the laser deposition welding equipment 3, the laser impact forging equipment 4, the welding seam quality monitoring and collecting equipment 5 and the motor 6 are installed on the movable supporting platform 7, and the welding seam quality monitoring and collecting equipment 5 is installed at the rear position of the movable supporting platform 7 in the moving direction.
Preferably, the guide rail 1 is a T-shaped groove arc guide rail, is coaxial with the crane base 8, and is laid concentrically with the crane base 8, with the guide rail R larger than the radius R of the crane base 8.
Further preferably, the movable support platform 7 overlaps the guide rail 1 and is movable along the guide rail 1.
Preferably, the guide rail 1 is composed of two sections of identical semi-circular guide rails, the movable supporting platform 7 is firstly installed in an overlapping manner with one of the semi-circular guide rails, and then the two sections of semi-circular guide rails are spliced and combined.
Further preferably, the weld quality monitoring and collecting device 5 can be adjustably mounted and fixed on the movable supporting platform 7 in any degree of freedom.
And when the power supply is switched on, the computer control system 2 sends out an instruction to control the laser deposition welding equipment 3, the laser impact forging equipment 4, the motor 6 and the welding seam quality monitoring and collecting equipment 5 to simultaneously perform linkage work.
Further preferably, the computer control system 2 sends out commands to control the motor 6 to drive the mobile support platform 7 to move on the guide rail 1.
Preferably, the computer control system 2 sends an instruction to control the laser deposition welding device 3 and the laser impact forging device 4 to simultaneously send two laser beams of deposition welding and impact forging, the welding laser is applied to a to-be-welded area of the crane base 8, a welding pool 10 is rapidly formed in the welding area by using the laser heat effect, the impact forging laser synchronously impacts and forges a welding seam 9 area rapidly cooled to an optimal forging temperature area by using the shock wave mechanical effect of the laser, and the two laser beams with different functions simultaneously and cooperatively complete the whole welding process.
Preferably, the computer control system 2 sends an instruction to control the weld quality monitoring and collecting device 5 to perform real-time monitoring and weld quality information collection on the weld 9 which has undergone weld strengthening, and feeds back the weld quality information to the computer control system 2.
Preferably, the distance between the two laser beams with different functions is in the order of 0-1 mm, the acting time interval is within 1s, and the two laser beams work synchronously all the time in the whole welding strengthening processing process.
Further preferably, the computer control system 2 can send out an alarm according to the quality information of the unqualified welding seam 9 acquired and detected by the welding seam quality monitoring and acquisition device 5, and mark the position coordinates for the observation and further inspection and judgment of an operator.
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 (5)
1. A movable laser impact forging welding device for removing stress concentration of a marine crane base is characterized by comprising laser deposition welding equipment, laser impact forging equipment, a movable supporting platform, a driving motor, a guide rail and a computer control system, wherein the laser deposition welding equipment is used for melting a welding wire and base metal and enabling the welding wire and the base metal to form a welding molten pool, the laser impact forging equipment is used for forging the metal which is in a state that the molten pool is rapidly cooled to be in a solid plastic deformation state, the guide rail is used for guiding the movable supporting platform to move around the crane base in a circumferential mode, and the computer control system is used for controlling all parts to work;
the guide rail is designed by adopting a double-layer guide rail structure and comprises an inner layer guide rail and an outer layer guide rail; the guide rails are fixedly arranged around the base, and the inner layer guide rails and the outer layer guide rails are concentric and arranged at intervals; the movable supporting platform is arranged on the guide rail, is in rolling connection with the guide rail and can reciprocate on the guide rail; the driving motor is arranged on the movable supporting platform and is connected with the transmission mechanism to drive the movable supporting platform to move back and forth on the guide rail; the laser deposition welding equipment and the laser impact forging equipment are both arranged on the movable supporting platform, and the laser deposition welding equipment is positioned in front of the laser impact forging equipment; the computer control system is respectively and electrically connected with the driving motor, the laser deposition welding equipment and the laser impact forging equipment through cables so as to control all parts to operate orderly; the cables are laid along the guide rails and the moving direction of the moving supporting platform.
2. The marine crane base stress concentration removal movable laser shock forging welding device as claimed in claim 1, further comprising a weld quality monitoring and collecting device for monitoring weld quality; the welding seam quality monitoring and collecting equipment is installed on the movable supporting platform, is positioned behind the laser impact forging equipment and is electrically connected with the computer control system.
3. The maritime crane base stress concentration removal movable laser impact forging welding device as claimed in claim 1, wherein the guide rail is designed in a T-shaped groove arc structure, is concentrically and coaxially arranged with the base, and has a radius larger than that of the base.
4. The marine crane base stress concentration removal movable laser impact forging welding device as claimed in claim 1, wherein the guide rail is formed by splicing semi-circular arc-shaped guide rails with identical shapes and structures at two ends.
5. The marine crane base stress concentration removal movable laser impact forging welding device as claimed in claim 1, wherein the distance between the two laser beams with different functions generated by the laser deposition welding equipment and the laser impact forging equipment is set to be in the order of 0-1 mm, the time interval of starting action is within 1 second, and the two laser beams work synchronously all the time in the whole welding strengthening processing process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921224236.8U CN210908518U (en) | 2019-07-31 | 2019-07-31 | Marine crane base destressing concentration movable laser impact forging welding device |
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| CN201921224236.8U CN210908518U (en) | 2019-07-31 | 2019-07-31 | Marine crane base destressing concentration movable laser impact forging welding device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247359A (en) * | 2020-10-23 | 2021-01-22 | 广东镭奔激光科技有限公司 | Novel double-beam laser composite laser powder filling welding method and device |
| CN113733559A (en) * | 2021-08-06 | 2021-12-03 | 西安交通大学 | Multi-platform efficient material extrusion additive manufacturing equipment and block printing method |
| CN113798636A (en) * | 2021-10-11 | 2021-12-17 | 广东工业大学 | Multilayer laser forging hybrid electric arc welding method and device for accurately controlling right-angle welding seam area |
| CN117840644A (en) * | 2023-12-26 | 2024-04-09 | 侏罗纪马克热威装备科技有限公司 | Micro-control rolling welding integrated device and control system |
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2019
- 2019-07-31 CN CN201921224236.8U patent/CN210908518U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247359A (en) * | 2020-10-23 | 2021-01-22 | 广东镭奔激光科技有限公司 | Novel double-beam laser composite laser powder filling welding method and device |
| CN112247359B (en) * | 2020-10-23 | 2022-07-05 | 广东镭奔激光科技有限公司 | Novel double-beam laser composite laser powder filling welding method and device |
| CN113733559A (en) * | 2021-08-06 | 2021-12-03 | 西安交通大学 | Multi-platform efficient material extrusion additive manufacturing equipment and block printing method |
| CN113798636A (en) * | 2021-10-11 | 2021-12-17 | 广东工业大学 | Multilayer laser forging hybrid electric arc welding method and device for accurately controlling right-angle welding seam area |
| CN117840644A (en) * | 2023-12-26 | 2024-04-09 | 侏罗纪马克热威装备科技有限公司 | Micro-control rolling welding integrated device and control system |
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