CN112059457A - Welding method and manufacturing process of press body - Google Patents
Welding method and manufacturing process of press body Download PDFInfo
- Publication number
- CN112059457A CN112059457A CN202010929137.0A CN202010929137A CN112059457A CN 112059457 A CN112059457 A CN 112059457A CN 202010929137 A CN202010929137 A CN 202010929137A CN 112059457 A CN112059457 A CN 112059457A
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- China
- Prior art keywords
- welding
- plate
- press body
- side plates
- plates
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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
- 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
-
- 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
- B23K31/003—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 controlling of welding distortion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/04—Frames; Guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention provides a welding method and a manufacturing process of a press body, belonging to the field of large-scale bearing chassis, and the method comprises the following steps: the method comprises the following steps: two vertical side plates in a press machine body, a middle supporting plate and a bottom plate supporting plate which are arranged in the longitudinal side plates are assembled in advance; the middle supporting plate comprises a first middle plate, a second middle plate and a third middle plate which are parallel to each other; the bottom plate support plate comprises a first bottom support plate and a second bottom support plate; step two: vertically placing the two longitudinal side plates, respectively welding a first middle plate and a first bottom supporting plate along the same side in the width direction, then turning the two vertical side plates for 90 degrees, sequentially welding a second middle plate and a third middle plate above the first middle plate, and welding a second bottom supporting plate above the first bottom supporting plate; step three: and welding a base support plate to the bottoms of the two longitudinal side plates. The welding method effectively controls the welding deformation and improves the production efficiency.
Description
Technical Field
The disclosure belongs to the field of large-scale load-bearing chassis, and particularly relates to a welding method and a manufacturing process of a press machine body.
Background
The press body is an important part of the press, and determines whether the operation of the press is stable or not and the performance of the press, so that the welding performance of the press body plays an important role. The existing process of welding the press body is complex, parts of the press body are gradually welded one by one according to the assembly positions, the welding mode is complex, and the deformation of the press body after welding is large.
Disclosure of Invention
The welding method is a welding method which adopts sectional assembly and then folding of the press body, thereby ensuring the welding quality, reducing the welding deformation and improving the welding efficiency.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
at least one embodiment of the present disclosure provides a method of welding a press body, the method including the steps of:
the method comprises the following steps: two vertical side plates in a press machine body, a middle supporting plate and a bottom plate supporting plate which are arranged in the longitudinal side plates are assembled in advance; the middle supporting plate comprises a first middle plate, a second middle plate and a third middle plate which are parallel to each other; the bottom plate support plate comprises a first bottom support plate and a second bottom support plate;
step two: vertically placing the two longitudinal side plates, respectively welding a first middle plate and a first bottom supporting plate along the same side in the width direction, then turning the two vertical side plates for 90 degrees, sequentially welding a second middle plate and a third middle plate above the first middle plate, and welding a second bottom supporting plate above the first bottom supporting plate;
step three: and welding a base support plate to the bottoms of the two longitudinal side plates.
Furthermore, in the second step, the first to third middle plates, the first to second bottom supporting plates and the two vertical side plates are welded in a symmetrical mode at flat welding positions in a multi-layer and multi-pass welding mode.
Furthermore, when welding is performed in the second step, tack welding is performed first, and then the welding seam is filled and welded.
Furthermore, when the first to third middle plates and the first to second bottom supporting plates are welded, half of all weld filling grooves at the flat welding positions are completed, then the press body is turned over by 180 degrees, and the other half of the weld filling grooves at the flat welding positions are completed.
Furthermore, the welding is carried out in a carbon dioxide gas shielded welding mode.
Further, in the third step, the press body is welded with the bottom support plate in a standing state.
Further, in the first step, the first to third middle plates, the first to second bottom support plates and the two vertical side plates are welded in advance.
At least one embodiment of the present disclosure also provides an assembling process of a press body, including the following processes:
(1) blanking according to the sizes of all parts of the press body;
(2) carrying out welding assembly on a press body according to the welding method of any one of claims 1 to 7;
(3) performing flame shape adjustment on the position of the press body with local flatness difference or deformation exceeding a preset size;
(4) stress relief is carried out on the welding position; and finally, sand blasting and paint spraying.
Furthermore, the whole length of the parts of the press body is increased by 10mm, the width is increased by 6mm, and the height is increased by 4mm, and the flatness of the parts exceeds 3mm and is corrected by flame.
Furthermore, when the shape of the press body is adjusted after the welding, if a part of the press body is convexly deformed, a heavy object can be added for adjusting the shape.
The beneficial effects of this disclosure are as follows:
(1) the welding method of the press body is characterized in that parts in the press body are segmented, and then the segmented parts are welded in a folding mode, and compared with the traditional method that a single part is gradually welded, welding errors are reduced.
(2) The utility model discloses a press fuselage welds first backup pad in the middle of earlier with between two vertical curb plates on the fuselage and the first backup pad in bottom, then welds other some backup pads progressively in direction of height, has reduced the number of times of upset, has improved work efficiency, and after welding vertical curb plate and backup pad position of contact one side, with the fuselage rotation 180 degrees, the opposite side of rewelding has reduced the deformation of fuselage simultaneously.
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 an isometric view of a press body structure provided by an embodiment of the present disclosure after welding;
FIG. 2 is a top view of a welded press body structure provided by an embodiment of the present disclosure;
fig. 3 is a structural diagram of another angle of a press body structure obtained after welding according to an embodiment of the disclosure.
In the figure: 1. first vertical curb plate, 2, the vertical curb plate of second, 3, the first backup pad in centre, 4, the second backup pad in centre, 5, the third backup pad in centre, 6, the first backup pad in bottom, 7, the second backup pad in bottom, 8, first connecting plate, 81, round steel, 9, second connecting plate, 91, baffle, 10, bed plate, 11, third connecting 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.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in this disclosure, if any, merely indicate that the directions of movement are consistent with those of the figures themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present disclosure.
As shown in fig. 1, a schematic structural diagram of a press body obtained after welding assembly according to an embodiment of the present disclosure;
the specific welding method with reference to this figure is as follows:
A. the assembly of the two longitudinal side plates 1 and 2 is performed to form two blocks a and B, wherein the first fixing plate 11 and the second fixing plate 12 are welded on the inner side of the first longitudinal side plate 1, the assembly 21 is welded on the outer side of the second longitudinal side plate 2, and the assembly 21 is welded on the outer side of the first longitudinal side plate.
B. Assembling the bearing support plate positioned in the middle between the two longitudinal side plates, wherein as shown in the figure, three middle bearing support plates are arranged between the two longitudinal side plates and are divided into a middle first support plate 3, a middle second support plate 4 and a middle third support plate 5, wherein a round steel 41 is arranged in the middle of the middle support plate (namely the middle second support plate 4), and the middle second support plate is independently welded to form a C section;
C. assembling the first bottom support assembly 6 to form a D-section component: the bottom first support assembly 6 comprises a first support transverse plate, the first support transverse plate is positioned between the two longitudinal side plates, a first support longitudinal plate is vertically connected with the first support transverse plate, four rib plates (not marked in the figure) are arranged between the first support longitudinal plate and the first support transverse plate, and the bottom first support assembly is independently welded;
D. assembling the bottom second support assembly 7 forms a section E component: the second bottom support component has a structure similar to that of the first bottom support component and is welded in advance;
E. assembling the first connecting plate 8 forms the segment F: as shown in fig. 2, the first connecting plate 8 is disposed between the middle first supporting plate and the middle second supporting plate, the first connecting plate 8 is formed by round bars 81, and the first connecting plate 8 and the round bars 81 are welded together.
F. Assembling the second connection plate 9 to form the segment G: the second connecting plate 9 is arranged between the second bearing intermediate support plate and the third bearing intermediate support plate, the second connecting plate 9 is a horizontal support plate arranged at a pressure machine port, a through hole is formed in the middle of the horizontal support plate, and the upper baffle 91 is welded around the through hole.
The five large components on the press body are welded together separately before the press body is welded.
The machine body of the press machine is welded by segmented folding according to the following process;
step (1): vertically placing two longitudinal side plates A and B in sections, and assembling a middle first support plate 3 and a bottom first support plate 6 by taking a central line between the two longitudinal side plates as a reference, wherein the two support plates and the longitudinal side plates are welded in a positioning way without welding;
step (2): continuously welding two first transverse plates on the upper part of the first middle bearing support plate by taking the central lines of the two sections A and B of the longitudinal side plates as a reference, then welding first inclined plates on the end parts of the two transverse plates, and finally welding an upper section F between the two inclined plates; after the F section is installed, welding the C section, welding a second transverse plate and a second inclined plate on the top of the C section, welding the G section between the two second inclined plates, welding a middle third support plate on the upper part of the G section, and welding a bottom second support plate, namely the E section, wherein positioning welding is performed and welding is not performed in the welding process;
it should be noted that, in the second step, the segmentation and the parts are all half of the filling grooves of the welding seams at all the flat welding positions, after the welding, the machine body is turned over by 180 degrees, the remaining half of the filling grooves of the welding seams at all the flat welding positions are completed, and the long welding seam adopts a segmentation back welding method.
It should be further noted that: in the steps, filling welding is carried out after the positioning welding is carried out, the filling welding adopts a carbon dioxide gas shielded welding mode, the filling metal brand is AWS 5.18ER70S-6, the specification is phi 1.2mm, and the shielding gas is 100% carbon dioxide.
a. The independent welding of the side plates, the middle supporting plate, the bottom supporting plate and the sections A, B, C, D, E and F uses a flat welding position, and multilayer multi-pass welding is carried out in a symmetrical welding mode.
(3) And finally, taking the central lines of the sections A and B as the reference, assembling the base plate 10 and the third connecting plate 11, welding the base plate and the third connecting plate in a positioning way, and finally filling and welding the base plate and the third connecting plate.
It should be noted that in this step three, the base plate 10 and the third connecting plate 11 are both welded while the machine body is standing.
(4) And shape adjustment: and (3) performing flame shape adjustment on the position with the over-poor local flatness or large deformation, heating the workpiece to 500-650 ℃ (the appearance is tawny), and adding a heavy object at the convex part if the deformation is too large.
(5) And stress relief treatment: and (5) stress relief treatment.
(6) And surface treatment: performing sand blasting treatment according to the product to ISO Sa 21/2, and performing painting to form a finished product.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (10)
1. A welding method of a press body is characterized by comprising the following steps:
the method comprises the following steps: two vertical side plates in a press machine body, a middle supporting plate and a bottom plate supporting plate which are arranged in the longitudinal side plates are assembled in advance; the middle supporting plate comprises a first middle plate, a second middle plate and a third middle plate which are parallel to each other; the bottom plate support plate comprises a first bottom support plate and a second bottom support plate;
step two: vertically placing the two longitudinal side plates, respectively welding a first middle plate and a first bottom supporting plate along the same side in the width direction, then turning the two vertical side plates for 90 degrees, sequentially welding a second middle plate and a third middle plate above the first middle plate, and welding a second bottom supporting plate above the first bottom supporting plate;
step three: and welding a base support plate to the bottoms of the two longitudinal side plates.
2. A method of welding a press body as claimed in claim 1, characterized in that: and in the second step, the first to third middle plates, the first to second bottom supporting plates and the two vertical side plates are welded in a symmetrical mode at flat welding positions in a multi-layer and multi-pass welding mode.
3. A method of welding a press body as claimed in claim 2, characterized in that: when welding, the positioning welding is firstly performed, and then the welding seam is filled and welded.
4. A method of welding a press body as claimed in claim 3, characterized in that: when the first to third middle plates and the first to second bottom supporting plates are welded, half of all the weld joint filling grooves at the flat welding positions are completed, then the press body is turned over by 180 degrees, and the other half of the weld joint filling grooves at all the flat welding positions are completed.
5. A method of welding a press body as claimed in claim 3, wherein said welding is performed by carbon dioxide arc welding.
6. A method of welding a press body as claimed in claim 1, characterized in that: in the third step, the press body is welded with the bottom support plate in a standing state.
7. A method of welding a press body as claimed in claim 1, characterized in that: in step one, the first to third middle plates, the first to second bottom support plates and the two vertical side plates are welded in advance.
8. The assembly process of the press body is characterized by comprising the following steps:
(1) blanking according to the sizes of all parts of the press body;
(2) carrying out welding assembly on a press body according to the welding method of any one of claims 1 to 7;
(3) performing flame shape adjustment on the position of the press body with local flatness difference or deformation exceeding a preset size;
(4) stress relief is carried out on the welding position; and finally, sand blasting and paint spraying.
9. The assembly process of a press body according to claim 8, characterized in that the overall length of the parts of the press body is increased by 10mm, the width is increased by 6mm, and the height is increased by 4mm, and the flatness of the parts is improved by flame straightening beyond 3 mm.
10. An assembling process of a press body as claimed in claim 8, wherein when the shape adjustment is performed after the welding of the press body, if a part of the press body is deformed convexly, a weight is added for the shape adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010929137.0A CN112059457B (en) | 2020-09-07 | 2020-09-07 | Welding method and manufacturing process of press body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010929137.0A CN112059457B (en) | 2020-09-07 | 2020-09-07 | Welding method and manufacturing process of press body |
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| Publication Number | Publication Date |
|---|---|
| CN112059457A true CN112059457A (en) | 2020-12-11 |
| CN112059457B CN112059457B (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010929137.0A Active CN112059457B (en) | 2020-09-07 | 2020-09-07 | Welding method and manufacturing process of press body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113319461A (en) * | 2021-06-25 | 2021-08-31 | 中国船舶重工集团柴油机有限公司 | Method for welding oil supply unit shell of large marine dual-fuel diesel engine |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200995494Y (en) * | 2006-12-28 | 2007-12-26 | 扬州捷迈锻压机械有限公司 | Welding press body of integrated cased built-in |
| CN201524760U (en) * | 2009-09-17 | 2010-07-14 | 江苏省徐州锻压机床厂集团有限公司 | Whole frame closed type pressure machine body |
| CN103381669A (en) * | 2013-07-01 | 2013-11-06 | 浙江博雷重型机床制造有限公司 | Welding body of pressing machine |
| CN103722338A (en) * | 2014-01-23 | 2014-04-16 | 江苏扬力集团有限公司 | Spot welding tooling of machine body of press machine and spot welding method employing spot welding tooling |
| EP2509724B1 (en) * | 2009-12-11 | 2015-11-04 | Aliko Oy Ltd | Method for forming the body of a press brake, and a press brake |
| CN110091092A (en) * | 2019-06-17 | 2019-08-06 | 中国船舶重工集团柴油机有限公司 | A kind of assembly welding method of press crown |
| CN110369898A (en) * | 2019-08-12 | 2019-10-25 | 中国船舶重工集团柴油机有限公司 | A kind of tube chamber welds with base method and manufacture craft |
| CN110560941A (en) * | 2019-08-05 | 2019-12-13 | 沃得精机(中国)有限公司 | assembling and welding process for open press body |
| CN111468853A (en) * | 2020-04-24 | 2020-07-31 | 青岛海尔洗碗机有限公司 | Dish washing machine inner container and welding method thereof |
-
2020
- 2020-09-07 CN CN202010929137.0A patent/CN112059457B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200995494Y (en) * | 2006-12-28 | 2007-12-26 | 扬州捷迈锻压机械有限公司 | Welding press body of integrated cased built-in |
| CN201524760U (en) * | 2009-09-17 | 2010-07-14 | 江苏省徐州锻压机床厂集团有限公司 | Whole frame closed type pressure machine body |
| EP2509724B1 (en) * | 2009-12-11 | 2015-11-04 | Aliko Oy Ltd | Method for forming the body of a press brake, and a press brake |
| CN103381669A (en) * | 2013-07-01 | 2013-11-06 | 浙江博雷重型机床制造有限公司 | Welding body of pressing machine |
| CN103722338A (en) * | 2014-01-23 | 2014-04-16 | 江苏扬力集团有限公司 | Spot welding tooling of machine body of press machine and spot welding method employing spot welding tooling |
| CN110091092A (en) * | 2019-06-17 | 2019-08-06 | 中国船舶重工集团柴油机有限公司 | A kind of assembly welding method of press crown |
| CN110560941A (en) * | 2019-08-05 | 2019-12-13 | 沃得精机(中国)有限公司 | assembling and welding process for open press body |
| CN110369898A (en) * | 2019-08-12 | 2019-10-25 | 中国船舶重工集团柴油机有限公司 | A kind of tube chamber welds with base method and manufacture craft |
| CN111468853A (en) * | 2020-04-24 | 2020-07-31 | 青岛海尔洗碗机有限公司 | Dish washing machine inner container and welding method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李忠明等: "压力机上横梁焊接工艺研究", 《核能行业焊接技术经验交流会论文集》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113319461A (en) * | 2021-06-25 | 2021-08-31 | 中国船舶重工集团柴油机有限公司 | Method for welding oil supply unit shell of large marine dual-fuel diesel engine |
| CN113319461B (en) * | 2021-06-25 | 2022-06-07 | 中国船舶重工集团柴油机有限公司 | Method for welding oil supply unit shell of large marine dual-fuel diesel engine |
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| Publication number | Publication date |
|---|---|
| CN112059457B (en) | 2022-12-27 |
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Address after: 266520 No. 501 Lijiang East Road, Huangdao District, Qingdao, Shandong Patentee after: China Shipbuilding Industry Corporation Diesel ENGINE Co.,Ltd. Address before: 266520 No. 501 Lijiang East Road, Huangdao District, Qingdao, Shandong Patentee before: CHINA SHIPBUILDING INDUSTRY CORPORATION DIESEL ENGINE Co.,Ltd. |