CN113664363A - Special-shaped track welding method for end face of water-cooled motor shell - Google Patents
Special-shaped track welding method for end face of water-cooled motor shell Download PDFInfo
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- CN113664363A CN113664363A CN202111025760.4A CN202111025760A CN113664363A CN 113664363 A CN113664363 A CN 113664363A CN 202111025760 A CN202111025760 A CN 202111025760A CN 113664363 A CN113664363 A CN 113664363A
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- 238000003466 welding Methods 0.000 title claims abstract description 133
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 238000003756 stirring Methods 0.000 claims abstract description 33
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims 2
- 230000008569 process Effects 0.000 description 16
- 238000005498 polishing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention relates to the technical field of friction welding, in particular to a special-shaped track welding method for an end face of a water-cooled motor shell, which comprises the following steps of: firstly, a water-cooled motor shell and sealing plates on a corresponding water channel are assembled, then a round hole is processed between the adjacent ends of the assembling sealing plates on the end surface of the motor shell and is superposed on a threaded hole to be processed on the shell, and the sealing plates are welded by friction stir welding according to a preset welding track, so that a welding key hole of the sealing plates and the round hole are superposed with each other.
Description
Technical Field
The invention relates to the technical field of friction welding, in particular to a special-shaped track welding method for an end face of a water-cooled motor shell.
Background
At present, friction stir welding is an innovative advanced friction welding technology and is known as a green and environment-friendly welding technology with high quality and low cost. Compared with the traditional welding method, the friction stir welding has the advantages of high welding strength, smooth appearance of a welding joint, small residual stress after welding, small deformation, no pollution, high efficiency, energy conservation and the like. The aluminum alloy water-cooled motor shell has higher requirement on the welding quality of the end face of the water channel, requires the smooth surface of a welding line, good sealing property and uniform microstructure, and does not allow the occurrence of pore defects, so that friction stir welding is mostly adopted for the end face welding of the water-cooled motor shell.
However, the friction stir welding process and the friction stir welding device for the current water-cooled motor shell have some defects, and the problems that the welding seam overlap is too large and the repeated welding track is too long due to the fact that repeated walking routes are easy to occur on the end face of the current water-cooled motor shell in the welding process are solved.
Therefore, the invention provides a special-shaped track welding method for the end face of the water-cooled motor shell, which can solve the technical problems.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a special-shaped track welding method for the end face of a water-cooled motor shell, which can ensure the accuracy and the high efficiency in the welding process, avoid the problems of overlarge welding seam flash and overlong time of a repeated welding track caused by a repeated walking route in the welding process, can finish end face sealing processing by only walking and welding along the joint of a C-shaped ring and the shell after improving the process, solve the welding problem of a special-shaped water channel and simplify the blocking form.
The technical scheme adopted by the invention for solving the technical problems is as follows: a special-shaped track welding method for the end face of a water-cooled motor shell comprises the following steps:
step S1, firstly, the water-cooling motor shell is paired with a sealing plate on a corresponding water channel;
step S2, processing a round hole at the position of a threaded hole to be processed, which is between the end surface of the motor shell and the adjacent end of the sealing plates paired with the motor shell and is superposed on the shell;
step S3, performing sealing plate welding by friction stir welding according to a preset welding track;
step S4, determining the position of the key hole during friction stir welding so as to facilitate the superposition of the position of the threaded hole and the position of the key hole during subsequent welding;
step S5, friction stir welding is carried out according to the predicted welding track, the sealing plate is welded on the corresponding water channel, and the keyhole of the friction stir welding is left at the position of the circular hole;
step S6, grinding burrs on the end face of the shell after friction stir welding by using an angle grinder;
step S7, drilling the key hole position on the end face of the motor shell, and then tapping the key hole;
and step S8, welding the joint of the C-shaped ring and the motor shell in a walking mode to finish end face sealing processing.
Furthermore, the surface of the welding seam to be welded between the shell and the sealing plate is scrubbed by using isopropanol.
Furthermore, the weld penetration between the sealing plate and the motor shell is 1.5-4.5 mm.
Further, in the step S8, after the C-shaped ring and the motor casing are welded together, the welded surface burrs of the friction stir welding are removed by polishing.
Further, the friction stir welding in step S3 is performed by laser tracking spot welding.
The invention has the advantages that: the invention provides a special-shaped track welding method for the end face of a water-cooled motor shell for ensuring the welding quality and the welding efficiency of friction stir welding, which can ensure the accuracy and the high efficiency in the welding process, avoid the problems of overlarge welding seam flash and overlong time of a repeated welding track caused by a repeated walking route in the welding process, can finish end face sealing processing by only walking and welding along the joint of a C-shaped ring and the shell after improving the process, solve the welding problem of a special-shaped water channel, simplify the plugging form, shorten the welding operation track, improve the production efficiency and realize cost reduction and efficiency improvement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a welding track of a water-cooled motor casing according to the present invention;
wherein:
1. a water-cooled motor casing; 2. and C-shaped rings.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the invention provides a special-shaped track welding method for an end face of a water-cooled motor shell, which comprises the following steps of:
step S1, firstly, the water-cooling motor shell is paired with a sealing plate on a corresponding water channel;
step S2, processing a round hole at the position of a threaded hole to be processed, which is between the end surface of the motor shell and the adjacent end of the sealing plates paired with the motor shell and is superposed on the shell;
step S3, welding the sealing plate by friction stir welding according to a preset welding track to ensure that the welding key hole of the sealing plate is superposed with the round hole;
step S4, determining the position of the key hole during friction stir welding so as to facilitate the superposition of the position of the threaded hole and the position of the key hole during subsequent welding;
step S5, friction stir welding is carried out according to the predicted welding track, the sealing plate is welded on the corresponding water channel, and the keyhole of the friction stir welding is left at the position of the circular hole;
step S6, grinding burrs on the end face of the shell after friction stir welding by using an angle grinder;
step S7, drilling a keyhole on the end face of the motor shell, and tapping the keyhole to facilitate subsequent assembly of the motor shell;
and step S8, welding the joint of the C-shaped ring and the motor shell in a walking mode to finish end face sealing processing.
Example two:
the invention provides a special-shaped track welding method for the end face of a water-cooled motor shell, wherein the surface of a to-be-welded welding seam between a shell and a sealing plate is scrubbed by using isopropanol, the weld penetration between the sealing plate and the motor shell is 2mm, after a C-shaped ring and a motor shell joint are welded in a walking mode in step S8, the welded surface burrs of friction stir welding are removed by polishing, the friction stir welding in step S3 adopts laser tracking fixed point welding, a welding track process processing algorithm is adopted in the invention, and a space point set is obtained firstly; analyzing a track needing to be welded according to the point set attribute signal, setting welding process parameters, and processing the welding track according to the welding process parameter setting; generating a robot execution statement; transmitting the welding data to a robot, executing the welding data by the robot, and welding according to the track; the algorithm solves the problems, point set data are imported through a measuring instrument, then a motion track can be generated, the point set data are generated through measurement of the measuring instrument, the point set data are stored in a default folder, the point set data are transmitted to software of an industrial personal computer through TCP/IP, attributes and characteristics of the point set data are analyzed, and the track of the point set data is analyzed.
Example three:
the invention provides a special-shaped track welding method for the end face of a water-cooled motor shell, which can calculate the track to be welded by using an industrial personal computer and point set data, welding technological parameters including welding layer number, offset, mode, groove and the like are set in the industrial personal computer, an automatic welding mode can be realized, the robot can weld according to the set parameters, according to the welding process, the robot is enabled to weld, an industrial personal computer can be used for processing point set data, the welding track at the position is analyzed, the data is analyzed and arranged into a straight line, a space circular arc and a multi-line section, the industrial personal computer is used for setting estimated parameters to be welded, including the number of layers to be welded, the offset, the welding mode and the welding groove, the welding track is processed according to the welding process, and then, an execution statement is generated through the industrial personal computer and provided for the robot to execute, so that the welding machine mounted on the robot hand is controlled to weld.
The invention provides a special-shaped track welding method for the end face of a water-cooled motor shell, which comprises the following steps of firstly assembling the water-cooled motor shell and a sealing plate on a corresponding water channel, then machining a round hole between the adjacent ends of the sealing plates assembled with the end face of the motor shell and at the position of a threaded hole to be machined on the shell, welding the sealing plates by friction stir welding according to a preset welding track to ensure that a welding shrinkage hole of the sealing plates and the round hole are overlapped with each other, determining the position of the key hole during friction stir welding, facilitating the position of the threaded hole and the key hole to be overlapped during subsequent welding, carrying out friction stir welding according to the predicted welding track, welding the sealing plates on the corresponding water channels, leaving the key hole of the friction stir welding at the position of the round hole, polishing burrs welded on the end face of the shell by the friction stir welding by using an angle grinder, drilling the position of the key hole on the end face of the motor shell, the key hole is tapped to facilitate subsequent motor shell assembly, the C-shaped ring and the motor shell joint are welded in a walking mode to finish end face sealing processing, accuracy and high efficiency in the welding process can be guaranteed, the problems that welding seam burrs are too large and repeated welding tracks are too long due to repeated walking routes in the welding process are solved, after the process is improved, end face sealing processing can be finished only by walking and welding along the C-shaped ring and the shell joint, the welding problem of the special-shaped water channel is solved, the plugging form is simplified, the welding operation track is shortened, production efficiency is improved, cost reduction and efficiency improvement are achieved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A special-shaped track welding method for the end face of a water-cooled motor shell is characterized by comprising the following steps:
step S1, firstly, the water-cooling motor shell is paired with a sealing plate on a corresponding water channel;
step S2, processing a round hole at the position of a threaded hole to be processed, which is between the end surface of the motor shell and the adjacent end of the sealing plates paired with the motor shell and is superposed on the shell;
step S3, performing sealing plate welding by friction stir welding according to a preset welding track;
step S4, determining the position of the key hole during friction stir welding so as to facilitate the superposition of the position of the threaded hole and the position of the key hole during subsequent welding;
step S5, friction stir welding is carried out according to the predicted welding track, the sealing plate is welded on the corresponding water channel, and the keyhole of the friction stir welding is left at the position of the circular hole;
step S6, grinding burrs on the end face of the shell after friction stir welding by using an angle grinder;
step S7, drilling the key hole position on the end face of the motor shell, and then tapping the key hole;
and step S8, welding the joint of the C-shaped ring and the motor shell in a walking mode to finish end face sealing processing.
2. The special-shaped track welding method for the end face of the water-cooled motor shell is characterized in that the surface of a weld joint to be welded between the shell and the sealing plate is scrubbed by using isopropanol.
3. The special-shaped track welding method for the end face of the water-cooled motor shell as claimed in claim 1, wherein the weld penetration between the sealing plate and the motor shell is 1.5 mm-4.5 mm.
4. The welding method for the irregular track of the end face of the water-cooled motor shell as claimed in claim 1, wherein in step S8, after the C-shaped ring is welded to the joint of the motor shell by walking, the welded surface burr of the friction stir welding is removed by grinding.
5. The welding method for the irregular tracks on the end surface of the water-cooled motor shell as claimed in claim 1, wherein the friction stir welding in the step S3 adopts laser tracking fixed point welding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111025760.4A CN113664363A (en) | 2021-09-02 | 2021-09-02 | Special-shaped track welding method for end face of water-cooled motor shell |
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| CN202111025760.4A CN113664363A (en) | 2021-09-02 | 2021-09-02 | Special-shaped track welding method for end face of water-cooled motor shell |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114189092A (en) * | 2021-11-20 | 2022-03-15 | 重庆虎溪电机工业有限责任公司 | Novel water channel structure of water-cooled motor and manufacturing method |
| CN115502545A (en) * | 2022-11-15 | 2022-12-23 | 江苏攀森智能科技有限公司 | Friction welding processing technology for water channel of driving motor shell |
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| CN112296507A (en) * | 2020-10-30 | 2021-02-02 | 辽宁忠旺铝合金精深加工有限公司 | Friction stir welding method for aluminum alloy water-cooled motor shell |
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2021
- 2021-09-02 CN CN202111025760.4A patent/CN113664363A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011102634A (en) * | 2009-11-12 | 2011-05-26 | Nippon Light Metal Co Ltd | Damper and outer shell for damper |
| CN102581476A (en) * | 2012-03-28 | 2012-07-18 | 首都航天机械公司 | Device and method for repairing friction stir welding weld defect of storage tank for carrier rocket |
| CN105921880A (en) * | 2016-06-23 | 2016-09-07 | 中色（天津）特种材料有限公司 | Welding fixture for friction stir welding of water channels of water-cooled motor shell and annular welding technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114189092A (en) * | 2021-11-20 | 2022-03-15 | 重庆虎溪电机工业有限责任公司 | Novel water channel structure of water-cooled motor and manufacturing method |
| CN115502545A (en) * | 2022-11-15 | 2022-12-23 | 江苏攀森智能科技有限公司 | Friction welding processing technology for water channel of driving motor shell |
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Effective date of registration: 20220808 Address after: Room 501, No. 86 Ziguang Road, Zhongbei Town, Xiqing District, Tianjin 300000 Applicant after: CNMC Innovation Research Institute (Tianjin) Co., Ltd. Address before: 300000 No. 86, Ziguang Road, Zhongbei Town, Xiqing District, Tianjin Applicant before: CHINA NONFERROUS METALS MINING (GROUP) TIANJIN FOR SPECIAL MATERIAL CO.,LTD. |
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