CN111872643A - Assembly welding process for guide rail plate, wing plate and bottom plate of diesel engine frame and product - Google Patents
Assembly welding process for guide rail plate, wing plate and bottom plate of diesel engine frame and product Download PDFInfo
- Publication number
- CN111872643A CN111872643A CN202010773188.9A CN202010773188A CN111872643A CN 111872643 A CN111872643 A CN 111872643A CN 202010773188 A CN202010773188 A CN 202010773188A CN 111872643 A CN111872643 A CN 111872643A
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- Prior art keywords
- plate
- guide rail
- welding
- assembly
- wing
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model relates to a diesel engine frame guide rail plate and pterygoid lamina, little bottom plate's assembly welding technology and product belongs to diesel engine technical field, and this assembly welding technology includes following step: the method comprises the following steps: assembling the guide rail plate, the wing plate and the bottom plate in advance; and assembling two identical single assemblies; step two: combining and fixing one surfaces of the guide rail plates in the two single assembly bodies, which are far away from the wing plates, to form a total assembly body; step three: and simultaneously welding the same sides of the combined parts of the guide rail plate and the wing plate in the two single assembly bodies, and separating the two single assembly bodies after welding. The assembly welding process of the guide rail plate, the wing plate and the bottom plate combines the guide rail plates in the two parts back to back after assembly, welding is carried out by using double-sided double-arc transverse welding with the help of the rotary table, the shape adjusting process of the guide rail plate after welding is removed, and the production efficiency of products is improved.
Description
Technical Field
The present disclosure belongs to the field of diesel engine technology, and is especially assembling and welding process and product of guide rail plate, wing plate and bottom plate of diesel engine frame.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
A traditional assembly welding mode of a guide rail plate, a wing plate and a small bottom plate of a marine diesel engine frame is that after the guide rail plate, the wing plate and the bottom plate are assembled, the guide rail plate, the wing plate and the bottom plate are horizontally placed to be welded at a flat welding position, the guide rail plate, the wing plate and the bottom plate are overturned after one surface of the guide rail plate is welded, the other surface of the guide rail plate and the wing plate are welded at the flat welding position, the guide rail plate and the wing plate are deformed after.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides an assembly welding process of a guide rail plate, a wing plate and a bottom plate of a diesel engine rack and a product, which removes a post-welding shape-adjusting procedure and improves the production efficiency of the product.
The invention discloses at least one embodiment provides an assembly welding process of a guide rail plate, a wing plate and a bottom plate of a diesel engine frame, which comprises the guide rail plate, the wing plate and the bottom plate; the assembly welding process comprises the following steps:
the method comprises the following steps: assembling the guide rail plate, the wing plate and the bottom plate in advance; and assembling two identical single assemblies;
step two: combining and fixing one surfaces of the guide rail plates in the two single assembly bodies, which are far away from the wing plates, to form a total assembly body;
step three: and simultaneously welding the same sides of the combined parts of the guide rail plate and the wing plate in the two single assembly bodies, taking down the total assembly body after welding, and finally separating the two single assembly bodies.
Furthermore, the edges of the joint surfaces of the two guide rail plates in the two single assembly bodies are fixed by spot welding.
Further, in the third step, after welding, cutting the spot welding positions of the two guide rail plates in the total assembly body by a cutting machine to separate the two single assembly bodies and grinding the cutting positions.
Further, the general assembly body is arranged on a rotary table, and the general assembly body rotates around a central line which is perpendicular to the plane formed by the two bottom plates.
And further, simultaneously carrying out double-arc cross welding on the same side of the combined part of the guide rail plate and the wing plate in the two single assembly bodies by adopting a welding gun in the third step.
Further, each welding gun is connected with a separate welding device.
Furthermore, before the guide rail plate is assembled with the wing plate and the bottom plate, the welding part of the guide rail plate and the wing plate needs to be polished.
And further, after the two single assembly bodies are separated in the third step, welding the connecting position of the guide rail plate and the bottom plate by using a welding gun.
The invention also provides an assembly welding product of the guide rail plate, the wing plate and the bottom plate of the diesel engine frame, which is prepared by adopting the assembly welding process.
The embodiment disclosed above achieves the following advantages:
the assembly welding process of the guide rail plate, the wing plate and the bottom plate combines the guide rail plates in the two parts back to back after assembly, welding is carried out by using double-sided double-arc transverse welding with the help of the rotary table, the shape adjusting process of the guide rail plate after welding is removed, and the production efficiency of products is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.
FIG. 1 is a schematic view of a conventional one-piece assembly welding;
FIG. 2 is an assembly view of two single-turn ligands in a welding process provided by an embodiment of the present disclosure;
fig. 3 is a schematic diagram of simultaneous welding of two sides in a welding process according to an embodiment of the disclosure.
In the figure: 1. guide rail plate, 2, wing plate, 3, bottom plate.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
In the description of the present disclosure, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present disclosure.
As shown in fig. 1, in the prior art, after a guide rail plate 1, a wing plate 2 and a small bottom plate 3 of a frame of a marine diesel engine are assembled by a welding tool, the guide rail plate, the wing plate and the small bottom plate are horizontally placed, and then the contact positions of the guide rail plate, the wing plate and the small bottom plate are welded by welding, for example, one side is welded first, after one side is welded, the welded whole is turned over, and then the non-welded side is welded by welding.
The welding method causes a certain deformation at the welding position of the guide rail plate and the wing plate, so that the guide rail plate and the wing plate cannot be normally used, and a separate shape adjusting procedure is required, thereby affecting the production efficiency.
In order to solve the technical problem, the embodiment of the present disclosure provides a welding process, which includes the following steps:
the method comprises the following steps: firstly, the guide rail plate, the wing plate and the small base plate of the diesel engine are assembled into a single integral body, and then another single integral body is assembled according to the mode, and the two single integral bodies are identical in structure.
Step two: the two assembled single integral middle guide rail plates in the same die are butted and combined as shown in fig. 2, spot welding is adopted for the contact position of the two guide rail plates, for example, several points are uniformly spot-welded on the upper long edge and the lower long edge of the two guide rail plates, it needs to be explained that the welding positions and the welding quantity of the upper edge and the lower edge are as same as possible, and meanwhile, in order to further limit the deformation of the two guide rail plates, the edges on the left side and the right side can be simultaneously welded, and the specific welding mode is the same as that of the upper edge and the lower edge.
Step three: the combined assembly is placed on a turntable, the assembly is clamped by a clamp, and the assembly can be driven to rotate around a central line which is perpendicular to the plane formed by the wing plates on the two single assemblies.
Step four: when the two single assembly bodies are rotated to the positions shown in fig. 3, the upper surfaces of the connecting parts of the two integrated upper guide rail plates, the wing plates and the small bottom plate are welded by using a welding gun in a bilateral double-arc transverse welding mode, and it is noted that the welding speed of the two sides is ensured to be the same, and the welding guns can be respectively connected with an independent welding device.
Of course, in other embodiments, other welding devices may be used to weld, but it is necessary to ensure that both sides are welded at the same time, so as to ensure that one side is not deformed due to welding first, because both sides are subjected to the same high temperature at the same time, and the two guide rail plates are fixed by spot welding in the same welding manner, so as to limit the deformation of the two guide rail plates.
Step five: after the upper sides of the two whole bodies are welded, the two whole bodies are rotated through the rotary table, when the lower surfaces of the connecting parts of the upper guide rail plate, the wing plate and the small bottom plate in the two whole bodies face upwards, double-side double-arc transverse welding is carried out by adopting the same welding equipment, and the specific welding mode is the same.
Step six: after the whole welding, take off whole after the welding from the revolving stage down, separate two assembly bodies of the mode of physics again, for example cut the place of two whole spot welds through the cutting machine, then polish the position of cutting again, two single assembly bodies after separately, the rethread welding rifle welds the position that guide rail plate and bottom plate are connected in to single assembly body can.
Therefore, after the welding method is assembled, the guide rail plates in the two parts are combined back to back, and the double-sided double-arc transverse welding is used for welding by means of the rotary table.
The product is obtained based on the assembly welding process of the guide rail plate, the wing plate and the small bottom plate, compared with the product obtained by the existing welding method, the deformation degree of the welding part of the guide rail plate and the wing plate is reduced, and the process adjustment is not needed.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. A welding process for the guide rail plate, wing plate and bottom plate of diesel engine frame includes the guide rail plate, wing plate and bottom plate; the method is characterized by comprising the following steps:
the method comprises the following steps: assembling the guide rail plate, the wing plate and the bottom plate in advance; and assembling two identical single assemblies;
step two: combining and fixing one surfaces of the guide rail plates in the two single assembly bodies, which are far away from the wing plates, to form a total assembly body;
step three: and simultaneously welding the same sides of the combined parts of the guide rail plate and the wing plate in the two single assembly bodies, taking down the total assembly body after welding, and finally separating the two single assembly bodies.
2. The assembly welding process of the guide rail plate, the wing plate and the bottom plate of the diesel engine frame as claimed in claim 1, wherein the edges of the joint surfaces of the two guide rail plates in the two single assembly bodies are fixed by spot welding.
3. The assembly welding process of the guide rail plate, the wing plate and the bottom plate of the diesel engine frame as claimed in claim 2, wherein the upper and lower edges or the left and right edges of the joint surface of the two guide rail plates are fixed by spot welding at the same position.
4. An assembly welding process of a guide rail plate, a wing plate and a base plate of a diesel engine frame as claimed in claim 2, wherein in the third step, after welding, a cutting machine is used for cutting the spot welding positions of the two guide rail plates in the total assembly body to separate the two single assembly bodies and grinding the cutting positions.
5. The assembly welding process of a guide rail plate, a wing plate and a bottom plate of a diesel engine frame as claimed in claim 1, wherein the total assembly body is mounted on a turntable so that the total assembly body rotates around a central line perpendicular to a plane formed by the two bottom plates.
6. The assembly welding process of the guide rail plate, the wing plate and the bottom plate of the diesel engine frame according to claim 1, wherein in the third step, the welding gun is adopted to weld the two single assemblies at the same time on the same side of the combination part of the guide rail plate and the wing plate by double-arc cross welding.
7. The assembly welding process of the guide rail plate, the wing plate and the base plate of the diesel engine frame as claimed in claim 6, wherein each welding gun is connected with a welding device.
8. The assembly welding process of the guide rail plate, the wing plate and the small base plate of the diesel engine frame according to claim 1, wherein before the guide rail plate, the wing plate and the base plate are assembled, the welding part of the guide rail plate and the wing plate needs to be ground.
9. The assembly welding process of the guide rail plate, the wing plate and the small base plate of the diesel engine frame as claimed in claim 1, wherein after the two single assembly bodies are separated in the third step, the welding gun is used for welding the position where the guide rail plate is connected with the base plate.
10. An assembly welding product of a guide rail plate, a wing plate and a small bottom plate of a diesel engine frame, which is characterized by being prepared by the assembly welding process of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010773188.9A CN111872643A (en) | 2020-08-04 | 2020-08-04 | Assembly welding process for guide rail plate, wing plate and bottom plate of diesel engine frame and product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010773188.9A CN111872643A (en) | 2020-08-04 | 2020-08-04 | Assembly welding process for guide rail plate, wing plate and bottom plate of diesel engine frame and product |
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| Publication Number | Publication Date |
|---|---|
| CN111872643A true CN111872643A (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010773188.9A Pending CN111872643A (en) | 2020-08-04 | 2020-08-04 | Assembly welding process for guide rail plate, wing plate and bottom plate of diesel engine frame and product |
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| CN (1) | CN111872643A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113478055A (en) * | 2021-07-22 | 2021-10-08 | 中国船舶重工集团柴油机有限公司 | Diesel engine frame single-piece double-face double-arc synchronous gas shield welding process |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405482A (en) * | 2002-11-11 | 2003-03-26 | 沪东重机股份有限公司 | Low-speed diesel engine frame welding method |
| CN1899751A (en) * | 2005-07-20 | 2007-01-24 | 沪东重机股份有限公司 | Welding method for triangle screw sleeve type machine frame |
| CN102009275A (en) * | 2010-11-03 | 2011-04-13 | 上海交通大学 | Automatic welding system for rack and base of marine diesel engine |
| CN103231198A (en) * | 2013-04-26 | 2013-08-07 | 四川东方能源科技股份有限公司 | Automatic lifting welding auxiliary device |
| CN105414785A (en) * | 2015-12-09 | 2016-03-23 | 江苏科技大学 | Manufacturing method for rack of marine low-speed diesel engine |
| US20160096241A1 (en) * | 2014-10-07 | 2016-04-07 | Caterpillar Inc. | Consumable insert for welding |
| CN110877138A (en) * | 2019-11-22 | 2020-03-13 | 浙江精工钢结构集团有限公司 | Double-sided double-arc back-gouging-free welding method for Q460 corrosion-resistant and fire-resistant steel plate |
| CN111168315A (en) * | 2020-02-26 | 2020-05-19 | 中国船舶重工集团柴油机有限公司 | Single-piece welding method for low-speed diesel engine frame for ship |
-
2020
- 2020-08-04 CN CN202010773188.9A patent/CN111872643A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1405482A (en) * | 2002-11-11 | 2003-03-26 | 沪东重机股份有限公司 | Low-speed diesel engine frame welding method |
| CN1899751A (en) * | 2005-07-20 | 2007-01-24 | 沪东重机股份有限公司 | Welding method for triangle screw sleeve type machine frame |
| CN102009275A (en) * | 2010-11-03 | 2011-04-13 | 上海交通大学 | Automatic welding system for rack and base of marine diesel engine |
| CN103231198A (en) * | 2013-04-26 | 2013-08-07 | 四川东方能源科技股份有限公司 | Automatic lifting welding auxiliary device |
| US20160096241A1 (en) * | 2014-10-07 | 2016-04-07 | Caterpillar Inc. | Consumable insert for welding |
| CN105414785A (en) * | 2015-12-09 | 2016-03-23 | 江苏科技大学 | Manufacturing method for rack of marine low-speed diesel engine |
| CN110877138A (en) * | 2019-11-22 | 2020-03-13 | 浙江精工钢结构集团有限公司 | Double-sided double-arc back-gouging-free welding method for Q460 corrosion-resistant and fire-resistant steel plate |
| CN111168315A (en) * | 2020-02-26 | 2020-05-19 | 中国船舶重工集团柴油机有限公司 | Single-piece welding method for low-speed diesel engine frame for ship |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113478055A (en) * | 2021-07-22 | 2021-10-08 | 中国船舶重工集团柴油机有限公司 | Diesel engine frame single-piece double-face double-arc synchronous gas shield welding process |
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Application publication date: 20201103 |
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