CN109202374B - Processing method of high-strength compartment - Google Patents
Processing method of high-strength compartment Download PDFInfo
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- CN109202374B CN109202374B CN201710547123.0A CN201710547123A CN109202374B CN 109202374 B CN109202374 B CN 109202374B CN 201710547123 A CN201710547123 A CN 201710547123A CN 109202374 B CN109202374 B CN 109202374B
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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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Abstract
The invention provides a processing method of a high-strength compartment, which divides the high-strength compartment into a plurality of plate-shaped assemblies according to the shape characteristics of the high-strength compartment, manufactures each plate-shaped assembly in a slicing mode, performs cold correction on each plate-shaped assembly after assembling and welding, performs one-time bucket-closing integral assembly in place by adopting a supporting platform after the plate-shaped assemblies are qualified, improves the work efficiency, ensures the quality requirement that high-strength materials need to be subjected to cold correction, and reduces the potential safety hazard in the manufacturing process.
Description
Technical Field
The invention relates to a processing technology of a high-strength compartment type structure, in particular to a processing method of a high-strength compartment.
Background
The high-strength rear-dump carriage welding structure is mainly applied to a part assembly, a large carriage assembly and the like of heavy mining power machinery, and brings great process problems to edge folding, assembling, welding and correcting due to large overall dimension and high material strength in the manufacturing process.
The manufacturing process has the following process difficulties:
1) the overall dimension of the carriage assembly after assembly is about: the length is 12m, the width is 8m, the height is 4m, and a certain potential safety hazard exists in turning over, so that the whole turning over and high-altitude operation are reduced as far as possible in the manufacturing process, and if the compartment body assembly is integrally assembled and then welded, a large amount of high-altitude welding operation and turning over and hoisting exist, and certain influence is caused on the working efficiency and safety control.
2) The carriage body assembly main body is made of a high-strength steel plate and a wear-resisting plate, and if the carriage body assembly is integrally assembled and welded and then corrected, a cold correction method cannot be adopted, so that the quality requirement cannot be met.
Therefore, a processing technology of a high-strength rear-dump carriage welding structure with minimum turnover frequency and easy production is needed.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a method for processing a high-strength compartment, which is used for solving the problems that the processing of the high-strength compartment in the prior art is time-consuming, labor-consuming and difficult.
To achieve the above and other related objects, the present invention provides a method for processing a high-strength car, comprising the steps of:
1) dividing the high-strength compartment into a plurality of independent plate-shaped assemblies according to the shape of the high-strength compartment, wherein the plate-shaped assemblies specifically comprise a left bottom plate, a right bottom plate, a left side assembly, a right side assembly, a front plate assembly and a protection plate assembly; firstly, manufacturing and welding each plate-shaped assembly, and respectively carrying out cold correction on each plate-shaped assembly;
2) installing a supporting platform, wherein the supporting platform comprises two side supports and a middle support positioned between the two side supports, the supporting top surface of the middle support is an inclined surface, and the supporting top surface of the middle support is higher than the supporting top surfaces of the two side supports;
3) forming a left L-shaped part and a right L-shaped part, wherein the left L-shaped part is formed by supporting a left bottom plate on the middle support, enabling the inner side surface of the left bottom plate to face downwards, supporting a left assembly on a side support on the left side and welding the left L-shaped part and the left bottom plate; the right L-shaped part is formed by supporting a right bottom plate on the middle support, enabling the inner side surface of the right bottom plate to face downwards, supporting a right assembly on a side support on the right side and welding the right bottom plate and the middle support;
4) fixing the butt joint of the left bottom plate and the right bottom plate to form a bottom plate assembly;
5) finding out the central line of the bottom plate assembly and finding out the mounting positioning line of the front plate assembly on the bottom plate assembly;
6) respectively fixedly connecting three edges of the front plate assembly with the bottom plate assembly, the left side assembly and the right side assembly by taking the central line of the bottom plate assembly as a reference;
7) fixedly connecting the protection plate assembly with the rest side of the front plate assembly by taking the central line of the front plate assembly as a reference;
8) positioning and assembling a rotary frame and a lifting cylinder support on the outer surface of the bottom plate assembly;
9) temporary supports are added among the inner surface of the bottom plate assembly, the inner surfaces of the left side assembly and the right side assembly to form an initial high-strength compartment, the whole compartment is hoisted and turned over, the inner surfaces of the bottom plate assembly, the inner surfaces of the left side assembly and the right side assembly are upward, and the inner connecting seams of the plate-shaped assemblies are welded;
10) and removing the temporary support and finishing the assembly of the high-strength compartment.
Preferably, the intermediate strut is formed by connecting two support columns with different heights, a first liftable component is arranged in each of the two support columns, the two side struts respectively comprise two support tables with the same height, and a second liftable component is arranged in each support table.
Preferably, in the step 3), before welding, the relative heights of the left base plate, the right base plate, the left assembly and the right assembly are adjusted by adjusting the heights of the top surfaces of the first lifting member and the second lifting member, so as to align the joints of the left base plate and the left assembly and the joints of the right base plate and the right assembly.
Preferably, in the step 9), the initial high-strength compartment is placed on the support frame during hoisting and turning, so that a preset distance is reserved between the initial high-strength compartment and the horizontal ground.
Preferably, step 11) is further included, welding a cover plate on the inner surface of the high-strength compartment corresponding to the weld of each plate assembly.
Preferably, the length, width and height of the high-strength compartment are respectively: 12m, 8m and 4 m.
Preferably, the step 1) is implemented by cold correction of each plate-shaped assembly through a movable correction tool, the movable correction tool comprises a workbench and a portal support arranged on the workbench in a sliding mode, a workpiece clamp is arranged on the workbench, the portal support is composed of a cross beam and stand columns arranged on two sides of the cross beam, a traveling mechanism enabling the portal support to move back and forth relative to the workbench is arranged at the bottom of each stand column, a sliding device capable of translating along the cross beam is arranged at the bottom of the cross beam, a hydraulic jack is arranged at the bottom of the sliding device, and jacking correction is implemented by moving the hydraulic jack to a position needing to be corrected during correction.
As described above, the processing method of the high-strength compartment of the present invention has the following beneficial effects: the high-strength compartment is divided into a plurality of plate-shaped assemblies according to the characteristics of self-checking shapes, each plate-shaped assembly is manufactured in a slicing mode, after the plate-shaped assemblies are assembled and welded, each plate-shaped assembly is subjected to cold correction, and after the plate-shaped assemblies are qualified, the supporting platform is adopted to carry out one-time bucket combination integral assembly in place, so that the work efficiency is improved, the quality requirement that high-strength materials need to be subjected to cold correction is met, and meanwhile, the potential safety hazard in the manufacturing process is reduced.
Drawings
Fig. 1 shows a schematic view of the structure of a high strength compartment.
Figure 2 shows a bottom view of the high strength compartment.
Fig. 3 is a schematic diagram of the movable calibration tool.
Description of the element reference numerals
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 3. It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions that the present disclosure can be implemented, so that the present disclosure is not limited to the technical essence, and any structural modifications, ratio changes, or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The invention provides a processing method of a high-strength compartment, which comprises the following steps:
1) the high-strength compartment is divided into a plurality of independent plate-shaped assemblies according to the shape of the compartment, and the independent plate-shaped assemblies are shown in figure 1 and specifically comprise a left bottom plate 4, a right bottom plate 6, a left side assembly 3, a right side assembly 5, a front plate assembly 2 and a protection plate assembly 1; firstly, manufacturing and welding each plate-shaped assembly, and respectively carrying out cold correction on each plate-shaped assembly;
2) installing a supporting platform, wherein the supporting platform comprises two side supports and a middle support positioned between the two side supports, the supporting top surface of the middle support is an inclined surface, and the supporting top surface of the middle support is higher than the supporting top surfaces of the two side supports;
3) a left L piece and a right L piece are formed, the left L piece is formed by supporting a left bottom plate 4 on a middle support, the inner side surface of the left bottom plate 4 faces downwards, supporting a left side assembly 3 on a side support on the left side and welding the left L piece and the right L piece; the right L-shaped part is formed by supporting a right bottom plate 6 on a middle support, enabling the inner side surface of the right bottom plate 6 to face downwards, supporting a right assembly 5 on a side support on the right side and welding the right bottom plate and the side support; when the invention is assembled, the formed compartment body inner cavity faces downwards, namely the supporting platform is positioned in the compartment body inner cavity;
4) after the left L-shaped part and the right L-shaped part are molded, the butt joint of the left bottom plate 4 and the right bottom plate 6 is fixed to form a bottom plate assembly serving as the bottom surface of the compartment body;
5) finding out the central line of the bottom plate assembly and finding out the installation positioning line of the front plate assembly 2 on the bottom plate assembly;
6) taking the central line of the bottom plate assembly as a reference, fixedly connecting three edges of the front plate assembly 2 with the bottom plate assembly, the left side assembly 3 and the right side assembly 5 respectively, and forming an inner cavity of the carriage body;
7) assembling and fixing the protection plate assembly 1 by taking the central line of the front plate assembly 2 as a reference, namely fixedly connecting the protection plate assembly 1 with the rest side of the front plate assembly 2;
8) positioning and assembling a revolving frame 11 and a lifting cylinder support 12 on the outer surface of the bottom plate assembly, as shown in FIG. 2;
9) temporary supports are added among the inner surface of the bottom plate assembly, the inner surfaces of the left side assembly 3 and the right side assembly 5, namely the temporary supports are added in the inner cavity of the carriage body to form an initial high-strength carriage, the whole carriage is hoisted and turned over, the inner surfaces of the bottom plate assembly, the left side assembly and the right side assembly face upwards, and the inner connecting seams of the plate-shaped assemblies are welded;
10) and removing the temporary support and finishing the assembly of the high-strength compartment.
The invention divides the high-strength compartment into a plurality of plate-shaped assemblies by dividing the high-strength compartment into areas, processes each plate-shaped assembly first, and processes the plate-shaped assemblies
And then, carrying out cold correction on each plate-shaped assembly independently, assembling the plate-shaped assemblies subsequently, assembling the plate-shaped assemblies according to the sequence during assembly, turning the plate-shaped assemblies over again after the assembly is finished, welding the welding seams in the compartment body, and finally forming the high-strength compartment.
For support and equipment, above-mentioned mid-support in this embodiment is formed by two support columns of height difference linking to each other, all is equipped with the first piece that goes up and down of liftable in two support columns, and two side supports include two supporting benches that the height is the same respectively, are equipped with the second piece that goes up and down of liftable in the supporting bench. In the embodiment, the first lifting piece is arranged in each supporting column, the second lifting piece is arranged in the supporting table, so that the height of the supporting object is changed through the lifting of the lifting pieces, and in the step 3), before welding, the relative heights of the left bottom plate 4, the right bottom plate 6, the left side assembly 3 and the right side assembly 5 are adjusted through adjusting the heights of the top surfaces of the first lifting piece and the second lifting piece, so that the connection positions of the left bottom plate 4 and the left side assembly 3, and the connection positions of the right bottom plate 6 and the right side assembly 5 are aligned. For example, the supporting columns and the supporting platforms are hollow upright column structures, the hydraulic jacks are additionally arranged in the centers of the supporting columns and the supporting platforms, so that the height and the plane of the high-strength compartment welding structure can be freely adjusted in the assembling process through the jacking and retracting functions of the hydraulic jacks, and the assembling efficiency is improved.
In step 9), for facilitating subsequent boring, the initial high-strength compartment is placed on the support frame during hoisting and turning over, so that a preset distance is reserved between the initial high-strength compartment and the horizontal ground.
In order to increase the stability of the high-strength compartment, the embodiment further includes step 11) of welding cover plates on the inner surface of the high-strength compartment corresponding to the weld joints of the plate assemblies, as shown in fig. 1, for example, welding a side cover plate on the weld joint of the left assembly 3 and the left base plate 4, welding a side cover plate 7 on the weld joint of the right assembly 5 and the right base plate 6, welding a front cover plate 8 on the weld joint of the front assembly and the base plate assembly, welding a base plate cover plate 10 on the weld joint of the left base plate 4 and the right base plate 6, and welding a vertical cover plate 9 on the weld joints of the front assembly, the left assembly, and the right assembly. Each cover plate in the embodiment is also independently manufactured in advance and is subjected to independent cold correction treatment.
The length, width and height of the high-strength compartment in this embodiment are respectively: 12m, 8m and 4m, so that the size of the wear-resistant plate is large, the wear-resistant plate and the high-strength steel plate are mainly adopted, and a single set is heavy and large in size. By adopting the high-strength compartment processing method, the production efficiency is improved, and the whole processing process only needs to be turned over once, so that the processing safety is ensured.
In order to realize cold correction of each plate-shaped assembly, in this embodiment, a movable correction tool is used for cold correction of each plate-shaped assembly in step 1), as shown in fig. 3, the movable correction tool includes a workbench 13 and a portal support 15 slidably disposed on the workbench 13, a workpiece fixture is disposed on the workbench 13, the portal support 15 is composed of a cross beam and upright posts disposed on two sides of the cross beam, a traveling mechanism for moving the portal support back and forth relative to the workbench is disposed at the bottom of the upright posts, a sliding device for translating along the cross beam is disposed at the bottom of the cross beam, a hydraulic jack 14 is disposed at the bottom of the sliding device, and during correction, the hydraulic jack 14 is moved to a position to be corrected to perform jacking correction.
As a specific processing method of the high-strength compartment of the present invention:
1. preparing each plate-shaped assembly, wherein the left bottom plate, the right bottom plate, the left assembly, the right assembly and other components are manufactured and welded in a single piece, and because the movable correction tool is large in external dimension and high in material strength, each plate-shaped assembly is subjected to independent cold correction; if the left bottom plate is welded and formed, cold correction is carried out;
2. building the supporting platform, firstly assembling a right bottom plate and a right side plate to form a right L-shaped part, wherein the outer side of the right L-shaped part faces upwards, and a temporary triangular supporting plate additionally arranged on the inner side of the right L-shaped part is not detached;
3. after the fixing, assembling a left bottom plate and a left side plate to form a left L-shaped part, additionally arranging a base plate at the joint of the left bottom plate and the right bottom plate to ensure that a gap is reserved for 5mm, fixing the joint by using a clamping plate, and additionally arranging a temporary section supporting part on the inner side of the carriage body after the size is adjusted; the processing sequence of the left L-shaped part and the right L-shaped part in the embodiment can be reversed without being influenced;
4. drawing a central line of a bottom plate assembly consisting of a left bottom plate and a right bottom plate and a positioning line spliced with the front plate assembly;
5. assembling the front plate assembly by taking the central line of the bottom plate assembly as a reference, keeping the central lines of the front plate assembly and the bottom plate assembly corresponding to each other, and positioning and fixing the front plate assembly and the bottom plate assembly;
6. assembling the protection plate assembly by taking the central line of the front plate assembly as a reference, keeping the central lines of the front plate assembly and the protection plate assembly corresponding to each other, and positioning and fixing the front plate assembly and the protection plate assembly;
7. after the main welding line is connected and welded on the outer side of the carriage body, performing nondestructive detection on the welding line and other items such as appearance and the like;
8. assembling and welding the side plates at the two sides of the protection plate and the connecting plates at other parts;
9. leveling the outer surface of the bottom plate assembly, marking, positioning and assembling the revolving frame and the lifting cylinder support, wherein the diagonal size of the revolving frame and the lifting cylinder support is required to be less than or equal to 3mm, the central distance size of the revolving frame and the lifting cylinder support is +/-2 mm, and subsequent machining allowance is reserved in an inner hole; the pin holes on the revolving frame and the lifting cylinder support can be bored by adopting a movable hole boring machine;
10. temporary support section steel is additionally arranged on the inner side of the carriage body for fixing, so that the rigidity of the carriage body is enhanced, and welding and hoisting deformation are prevented; after the inspection is qualified, the whole body is hoisted and turned over, the inner side of the body is upward, and the body is lifted by a support frame over 1 meter above the ground so as to facilitate the subsequent boring operation;
11. welding a butt welding seam on the inner surface of the bottom plate assembly, and welding connecting welding seams of the front plate assembly, the bottom plate assembly, the left side assembly and the right side assembly;
12. and removing the temporary support plate and the support piece.
13. And (4) additionally installing and welding cover plates on the inner side of the carriage body.
14. Size inspection, appearance inspection, weld joint and other nondestructive tests.
In conclusion, according to the processing method of the high-strength compartment, the high-strength compartment is divided into the plurality of plate-shaped assemblies according to the characteristics of self-checking shapes, the plate-shaped assemblies are manufactured in a split mode, after the plate-shaped assemblies are assembled and welded, cold correction is carried out on each plate-shaped assembly, after the plate-shaped assemblies are qualified, the support platform is adopted to carry out one-time bucket-closing integral assembly in place, the work efficiency is improved, the quality requirement that the high-strength material needs to be subjected to cold correction is met, and meanwhile potential safety hazards in the manufacturing process are reduced. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. A processing method of a high-strength compartment is characterized by comprising the following steps:
dividing the high-strength compartment into a plurality of independent plate-shaped assemblies according to the shape of the high-strength compartment, wherein the plate-shaped assemblies specifically comprise a left bottom plate, a right bottom plate, a left side assembly, a right side assembly, a front plate assembly and a protection plate assembly; firstly, manufacturing and welding each plate-shaped assembly, and respectively carrying out cold correction on each plate-shaped assembly;
installing a supporting platform, wherein the supporting platform comprises two side supports and a middle support positioned between the two side supports, the supporting top surface of the middle support is an inclined surface, and the supporting top surface of the middle support is higher than the supporting top surfaces of the two side supports;
forming a left L-shaped part and a right L-shaped part, wherein the left L-shaped part is formed by supporting a left bottom plate on the middle support, enabling the inner side surface of the left bottom plate to face downwards, supporting a left assembly on a side support on the left side and welding the left L-shaped part and the left bottom plate; the right L-shaped part is formed by supporting a right bottom plate on the middle support, enabling the inner side surface of the right bottom plate to face downwards, supporting a right assembly on a side support on the right side and welding the right bottom plate and the middle support;
fixing the butt joint of the left bottom plate and the right bottom plate to form a bottom plate assembly;
finding out the central line of the bottom plate assembly and finding out the mounting positioning line of the front plate assembly on the bottom plate assembly;
respectively fixedly connecting three edges of the front plate assembly with the bottom plate assembly, the left side assembly and the right side assembly by taking the central line of the bottom plate assembly as a reference;
fixedly connecting the protection plate assembly with the rest side of the front plate assembly by taking the central line of the front plate assembly as a reference;
positioning and assembling a rotary frame and a lifting cylinder support on the outer surface of the bottom plate assembly;
temporary supports are added among the inner surface of the bottom plate assembly, the inner surfaces of the left side assembly and the right side assembly to form an initial high-strength compartment, the whole compartment is hoisted and turned over, the inner surfaces of the bottom plate assembly, the inner surfaces of the left side assembly and the right side assembly are upward, and the inner connecting seams of the plate-shaped assemblies are welded;
and removing the temporary support and finishing the assembly of the high-strength compartment.
2. The method for processing a high-strength compartment as claimed in claim 1, wherein: the intermediate strut is formed by connecting two support columns with different heights, first liftable pieces are arranged in the two support columns, the side struts respectively comprise two support tables with the same height, and second liftable pieces are arranged in the support tables.
3. The method for processing a high-strength compartment as claimed in claim 2, wherein: in the step 3), before welding, the relative heights of the left bottom plate, the right bottom plate, the left assembly and the right assembly are adjusted by adjusting the heights of the top surfaces of the first lifting piece and the second lifting piece, so as to align the joints of the left bottom plate and the left assembly and the joints of the right bottom plate and the right assembly.
4. The method for processing a high-strength compartment as claimed in claim 1, wherein: in the step 9), the initial high-strength compartment is placed on the support frame when the carriage is lifted and turned over, so that a preset distance is reserved between the initial high-strength compartment and the horizontal ground.
5. The method for processing a high-strength compartment as claimed in claim 4, wherein: and 11) welding a cover plate on the inner surface of the high-strength compartment corresponding to the welding seam of each plate-shaped assembly.
6. The method for processing a high-strength compartment as claimed in claim 1, wherein: the length, width and height of the high-strength compartment are respectively as follows: 12m, 8m and 4 m.
7. The method for processing a high-strength compartment as claimed in claim 1, wherein: the method is characterized in that a movable correction tool is adopted in the step 1) to perform cold correction on each plate-shaped assembly, the movable correction tool comprises a workbench and a portal support arranged on the workbench in a sliding mode, a workpiece clamp is arranged on the workbench, the portal support is composed of a cross beam and stand columns arranged on two sides of the cross beam, a traveling mechanism enabling the portal support to move back and forth relative to the workbench is arranged at the bottom of each stand column, a sliding device capable of translating along the cross beam is arranged at the bottom of the cross beam, a hydraulic jack is arranged at the bottom of the sliding device, and jacking correction is performed to a position needing to be corrected through the movement of the hydraulic jack during.
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| CN201710547123.0A CN109202374B (en) | 2017-07-06 | 2017-07-06 | Processing method of high-strength compartment |
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| CN102489985A (en) * | 2011-12-28 | 2012-06-13 | 力帆实业(集团)股份有限公司 | Support device for rear axle assembly of automobile production line |
| CN105312764A (en) * | 2015-11-30 | 2016-02-10 | 长春轨道客车股份有限公司 | Manufacturing process of ends of aluminum alloy underframe of standard motor train unit |
| CN105521998A (en) * | 2016-01-29 | 2016-04-27 | 灵宝金源朝辉铜业有限公司 | Disassembling and assembling device for parallel dual-supporting roller shaft bearings |
| CN205253776U (en) * | 2015-12-04 | 2016-05-25 | 中冶宝钢技术服务有限公司 | Movable rectifies frock |
| CN106826134A (en) * | 2017-03-02 | 2017-06-13 | 南南铝业股份有限公司 | The preparation method and device of a kind of full aluminium car body top component |
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2017
- 2017-07-06 CN CN201710547123.0A patent/CN109202374B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489985A (en) * | 2011-12-28 | 2012-06-13 | 力帆实业(集团)股份有限公司 | Support device for rear axle assembly of automobile production line |
| CN105312764A (en) * | 2015-11-30 | 2016-02-10 | 长春轨道客车股份有限公司 | Manufacturing process of ends of aluminum alloy underframe of standard motor train unit |
| CN205253776U (en) * | 2015-12-04 | 2016-05-25 | 中冶宝钢技术服务有限公司 | Movable rectifies frock |
| CN105521998A (en) * | 2016-01-29 | 2016-04-27 | 灵宝金源朝辉铜业有限公司 | Disassembling and assembling device for parallel dual-supporting roller shaft bearings |
| CN106826134A (en) * | 2017-03-02 | 2017-06-13 | 南南铝业股份有限公司 | The preparation method and device of a kind of full aluminium car body top component |
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