CN111360468A - Assembly welding tool for vertical plate and rib plate in fish-belly sill and welding method for fish-belly sill - Google Patents
Assembly welding tool for vertical plate and rib plate in fish-belly sill and welding method for fish-belly sill Download PDFInfo
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- CN111360468A CN111360468A CN201811597261.0A CN201811597261A CN111360468A CN 111360468 A CN111360468 A CN 111360468A CN 201811597261 A CN201811597261 A CN 201811597261A CN 111360468 A CN111360468 A CN 111360468A
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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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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Abstract
The invention provides a welding assembly tool and a welding method for a fish-belly sill intermediate vertical plate and a rib plate, wherein the welding assembly tool for the fish-belly sill intermediate vertical plate and the rib plate comprises the following steps: the positioning module assembly comprises a first positioning module, a second positioning module and a third positioning module, wherein the first positioning module is used for positioning the end part, the second positioning module is used for positioning the inclined plane section, the third positioning module is used for positioning the middle part, and the compressing module assembly is used for clamping the top and/or the side of the vertical plate. According to the embodiment of the invention, the two vertical plates and the plurality of rib plates are directly assembled together through the positioning module assembly and the pressing module assembly, so that repeated tire feeding in one-time assembly welding and low quality of scribing by adopting a sample plate are avoided, the one-time assembly welding process is simplified, and the efficiency of the whole tool is improved.
Description
Technical Field
The invention relates to the technical field of welding, in particular to an assembly welding tool for a middle vertical plate and a rib plate of a fish-belly sill and a welding method for the fish-belly sill.
Background
The fish-belly sill is a form of a girder, is called a fish-belly type girder, and is named as a fish belly because the middle section of the fish-belly sill is large and gradually smaller towards the two ends of the girder. The purpose of this construction is to increase the bending strength and to save material.
Fig. 1 is a schematic structural diagram of a fish-belly sill in the prior art. As shown in fig. 1, the fish-belly sill comprises an upper cover plate, a lower cover plate, a pair of vertical plates and a plurality of rib plates, wherein the vertical plates are connected through the rib plates, and the upper cover plate and the lower cover plate are respectively covered and connected with the top and the bottom of the vertical plates. The existing assembling and welding process of the fish-belly sill is divided into primary assembling and welding, secondary assembling and welding and tertiary assembling and welding, wherein the primary assembling and welding refers to that a sample plate is adopted to mark the position of an internal rib plate on a flat side vertical plate, then the rib plate and the side vertical plate are fixed in a point mode, the welded vertical plate and the rib plate are turned over to the other side vertical plate by using a simple tool, and the vertical plate and the rib plate are assembled with the other side vertical plate; the secondary assembly welding refers to adopting a simple tool, assembling the two welded vertical plates and the rib plate on the lower cover plate, fixing the vertical plates and the rib plate in a point mode, then carrying out primary welding, and welding the vertical plates, the rib plate and a welding seam in the lower cover plate; and the third assembly welding refers to assembling the upper cover plate by adopting a secondary assembly welding simple tool, then carrying out secondary welding, and welding four long welding seams on the outer side of the vertical plate by using a manipulator.
Although the manufacturing process can meet the existing requirements, the efficiency is low, the tire needs to be repeatedly inserted in one-time assembly welding, and the adoption of a sample plate scribing mode is not favorable for ensuring the product quality.
Disclosure of Invention
The invention provides an assembly welding tool for a middle vertical plate and a rib plate of a fish-belly sill and a welding method for the fish-belly sill, which improve the efficiency of one-time assembly welding.
The invention provides a welding assembly tool for a middle vertical plate and a rib plate of a fish-belly sill, wherein the fish-belly sill comprises an upper cover plate, a lower cover plate, a pair of vertical plates and a plurality of rib plates, the vertical plates are connected through the rib plates, the upper cover plate and the lower cover plate are respectively covered and connected with the top and the bottom of each vertical plate, two ends of each vertical plate are tilted, the middle part of each vertical plate is a straight line section, and an inclined plane section is arranged between the middle part of each vertical plate and the end part of each vertical plate, and the welding assembly tool for the middle vertical plate and the rib plate of the fish-belly sill comprises: the platform and be located positioning module subassembly and the module subassembly that compresses tightly on the platform, the positioning module subassembly includes first positioning module, second positioning module and third positioning module, wherein, first positioning module is used for the location the tip, the second positioning module is used for the location the inclined plane section, the third positioning module is used for the location the middle part, it is used for pressing from both sides tightly to compress tightly the module subassembly the top and/or the side of riser.
Optionally, the platform is a frame-type turnover platform.
Optionally, the first positioning module includes a base frame, a positioning seat, a first vertical positioning plate, and a first positioning block, the compression module assembly includes a fixture, the positioning seat is used for positioning the rib plate, the first vertical positioning plate is used for positioning the vertical plate, the first positioning block is used for positioning the lower portion of the vertical plate, and the fixture is used for compressing the top and the side of the vertical plate.
The number of the first vertical positioning plates is multiple, the first vertical positioning plates are divided into two rows and are arranged, the number of the positioning seats is multiple, the positioning seats are located between the two rows of the first vertical positioning plates, the number of the first positioning blocks is multiple, and the first positioning blocks are located on the side edges of the positioning seats.
The positioning seat, the first vertical positioning plate, the first positioning block and the fixture are detachably connected with the base body frame, and the base body frame is detachably connected with the platform.
Optionally, the second positioning module includes an inclined plane positioning seat, an inclined positioning plate and a first flat plate, the pressing module assembly includes a first side tightening device, the inclined plane positioning seat is used for positioning the rib plate which is obliquely arranged, the inclined positioning plate is used for positioning the inclined plane section, and the first side tightening device is used for pressing the side face of the vertical plate.
The number of the oblique positioning plates is multiple, the oblique positioning plates are arranged in two rows, the number of the oblique positioning seats is multiple, the oblique positioning seats are located between the two oblique positioning plates, and the first side of each oblique positioning seat abuts against the side edge of the corresponding oblique positioning seat.
The inclined plane positioning seat, the inclined positioning plate and the first side jacking are detachably connected with the first flat plate, and the first flat plate is detachably connected with the platform.
Optionally, the third positioning module includes a second vertical positioning plate, a second positioning block and a second flat plate, the pressing module assembly includes a second side pressing block, the number of the second vertical positioning plates is multiple, the multiple second vertical positioning plates are arranged in two rows, the number of the second positioning blocks is multiple, the multiple second positioning blocks are located between the multiple second vertical positioning plates, and the second side pressing block is located at the side of the second vertical positioning plate.
The second vertical positioning plate, the second positioning block and the second side jacking block are detachably connected with the second flat plate, and the second flat plate is detachably connected with the platform.
Optionally, the base frame includes two flat plates and a plurality of vertical plates, and the plurality of vertical plates are vertically connected between the two flat plates.
Optionally, a magnet is arranged on the positioning seat and used for adsorbing the rib plate.
Optionally, a magnet is arranged on the inclined plane positioning seat and used for adsorbing the rib plate.
Optionally, there are two sets of the positioning module assemblies and the compressing module assemblies, and the two sets of the positioning module assemblies and the compressing module assemblies are arranged on the platform in parallel.
The invention also provides a welding method of the fish-belly sill, which is applied to the assembly welding tool of the vertical plate and the rib plate in the fish-belly sill, and the welding method of the fish-belly sill comprises the following steps:
vertically placing a vertical plate of a fish-belly sill on a platform, respectively positioning the end part of the fish-belly sill through a first positioning module, positioning the inclined plane of the fish-belly sill through a second positioning module, positioning the middle part of the fish-belly sill through a third positioning module, and clamping the top and/or the side of the vertical plate through a pressing module assembly; (ii) a
Placing a rib plate between the vertical plates, and spot-welding the vertical plates and the rib plate;
spot welding the rib plate and the lower cover plate;
welding the inner side of the lower cover plate and the inner side of the vertical plate in a symmetrical welding sequence from the middle to the two ends;
spot welding the outer side of the upper cover plate and the outer side of the vertical plate;
and sequentially welding the outer side of the upper cover plate and the outer side of the vertical plate, and the outer side of the lower cover plate and the outer side of the vertical plate, wherein the welding sequence is that the welding is performed from the middle to the two ends gradually and symmetrically.
The fish-belly sill comprises an upper cover plate, a lower cover plate, a pair of vertical plates and a plurality of rib plates, the vertical plates are connected through the rib plates, the upper cover plate and the lower cover plate respectively cover and are connected to the top and the bottom of the vertical plates, two ends of each vertical plate are tilted, the middle of each vertical plate is a straight line section, an inclined plane section is arranged between the middle of each vertical plate and the end of each vertical plate, and the assembly welding tool for the vertical plates and the rib plates in the fish-belly sill comprises: the positioning module assembly comprises a first positioning module, a second positioning module and a third positioning module, wherein the first positioning module is used for positioning the end part, the second positioning module is used for positioning the inclined plane section, the third positioning module is used for positioning the middle part, and the compressing module assembly is used for clamping the top and/or the side of the vertical plate. According to the embodiment of the invention, the two vertical plates and the plurality of rib plates are directly assembled together through the positioning module assembly and the pressing module assembly, and the assembling positions are the positions of the vertical plates and the rib plates, so that the low quality caused by repeated tire entering and sample plate scribing in one-time assembly welding is avoided, the one-time assembly welding process is simplified, and the efficiency of the whole tool is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a fish belly sill in the prior art;
fig. 2 is a schematic structural view of an assembly welding tool for a vertical plate and a rib plate in a fish-belly sill according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first positioning module and a pressing module assembly in the assembly welding tool for the vertical plate and the rib plate in the fish-belly sill according to the first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second positioning module and a pressing module assembly in the assembly welding tool for the vertical plate and the rib plate in the fish-belly sill according to the first embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second positioning module and a pressing module assembly in the assembly welding tool for the vertical plate and the rib plate in the fish-belly sill according to the first embodiment of the present invention.
Description of reference numerals:
a-arc;
b-chord;
1, erecting a plate;
2, rib plates;
3-a platform;
4-a first positioning module;
41-base frame;
42-positioning seat;
43-a first vertical positioning plate;
44 — a first positioning block;
45-a fixture;
46 — a first fastener;
47 — a first gasket;
411 — plate;
412-a riser;
5-a second positioning module;
51-an inclined plane positioning seat;
52-oblique positioning plate;
53-first plate;
54-the first side is tightly pressed;
55-a second fastener;
56 — a second gasket;
511-susceptor;
6-a third positioning module;
61-a second vertical positioning plate;
62-a second positioning block;
63-a second plate;
64, tightly pushing the second side;
65-a third fastener;
66 — third gasket.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the 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. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The fish-belly sill is a common girder in a load-bearing structure, and is used as a lower side girder in structures such as locomotives and carriages. The fish-belly sill is usually a box girder and is structurally characterized in that the longitudinal section area of a girder body is changed, and the longitudinal section area of the middle part of the girder is larger than that of the two ends of the girder. Generally, the upper surface of the fish-belly sill is flat, and the lower surface of the fish-belly sill protrudes downwards to form a fish-belly shape.
Fig. 1 is a schematic view showing the structure of a fish-belly sill according to the prior art, which is illustrated in fig. 1, and which can be understood as an arch structure, i.e. a structure surrounded by a chord b and a corresponding arc a, and it is understood that, in general, the fish-belly sill is not arch in a strict geometrical sense. In use, with chord b above and arc a below, it is also understood to be inverted, as opposed to an arched bridge, for example. In general, the portion corresponding to the arc a is not necessarily an arc, but may be other curves, and cutting is generally called diagonal cutting. The position to which the chord b corresponds is generally called a straight cut when cutting, so that a straight cut is matched, as well as a diagonal cut corresponding to the arc a.
In practical application, the fish-belly sill comprises an upper cover plate, a lower cover plate, a pair of vertical plates and a plurality of rib plates, the vertical plates are connected through the rib plates, and the upper cover plate and the lower cover plate respectively cover and are connected to the top and the bottom of the vertical plates. In the existing assembling and welding process of the fish-belly sill, an upright plate on one side and a plurality of rib plates need to be assembled firstly, spot welding is carried out after assembling, then the upright plate and the rib plates on the other side are turned over and spot welding is carried out, the process is called as one-time assembling and welding, and it needs to be explained that in one-time assembling and welding, the two upright plates are horizontally placed, the positions of the upright plates and the rib plates need to be repeatedly changed, namely, the processes of repeatedly entering a tire are carried out, and the operation is very troublesome.
Example one
Generally, the fish belly sill comprises an upper cover plate, a lower cover plate, a pair of vertical plates 1 and a plurality of rib plates 2, wherein the vertical plates 1 are connected through the rib plates 2, the upper cover plate and the lower cover plate are respectively covered and connected with the top and the bottom of each vertical plate, two ends of each vertical plate 1 are tilted, the middle of each vertical plate 1 is a straight line segment, and an inclined plane segment is arranged between the middle of each vertical plate 1 and the end of each vertical plate 1. The one-time assembling and welding tool provided by the embodiment of the invention is called an assembling and welding tool for the vertical plate and the rib plate in the fish-belly sill, and mainly has the function of assembling and welding the pair of vertical plates 1 and the plurality of rib plates 2 together, so that the conventional one-time assembling and welding process is simplified, and the working efficiency is improved.
Fig. 2 is a schematic structural view of an assembly welding tool for a vertical plate and a rib plate in a fish-belly sill according to an embodiment of the present invention, and as shown in fig. 2, the assembly welding tool for a vertical plate and a rib plate in a fish-belly sill according to an embodiment of the present invention includes: platform 3 and be located the locating module subassembly on platform 3 and compress tightly the module subassembly, and the locating module subassembly includes first locating module 4, second locating module 5 and third locating module 6, and wherein, first locating module 4 is used for fixing a position the tip, and second locating module 5 is used for fixing a position the inclined plane section, and third locating module 6 is used for fixing a position the middle part, compresses tightly the module subassembly and is used for pressing from both sides the top and/or the side of tight riser 1.
Two groups of positioning module assemblies and pressing module assemblies are shown in fig. 2, and the two groups of positioning module assemblies and pressing module assemblies are arranged on the platform in parallel.
According to the embodiment of the invention, the two vertical plates and the plurality of rib plates are directly assembled together through the positioning module assembly and the pressing module assembly, and the assembling positions are the positions of the vertical plates and the rib plates, so that the low quality caused by repeated tire entering and sample plate scribing in one-time assembly welding is avoided, the one-time assembly welding process is simplified, and the efficiency of the whole tool is improved.
Optionally, the platform is a frame-type overturning platform, two sides of the platform are connected with the position changer through special interfaces, the position changer can conveniently overturn the whole device, and the platform is required to have enough strength so as to guarantee stability in the using process.
Fig. 3 is a schematic structural view of a first positioning module and a pressing module assembly in the assembly welding tool for a vertical plate and a rib plate in a fish-belly sill according to an embodiment of the present invention, as shown in fig. 3, the first positioning module 4 includes a base frame 41, a positioning seat 42, a first vertical positioning plate 43, and a first positioning block 44, the pressing module assembly includes a fixture 45, the positioning seat 42 is used for positioning the rib plate 2, the first vertical positioning plate 43 is used for positioning the vertical plate 1, the first positioning block 44 is used for positioning the lower side of the vertical plate 1, the fixture 45 is used for pressing the top and the side of the vertical plate 1, and the vertical plate 1 and the rib plate 2 at the two ends of the fish-belly sill are assembled together through the combination of the first positioning module 4.
The number of the first vertical positioning plates 43 is plural, the first vertical positioning plates 43 are divided into two rows, the number of the positioning seats 42 is plural, the positioning seats 42 are positioned between the two rows of the first vertical positioning plates 43, the number of the first positioning blocks 44 is plural, the first positioning blocks 44 are positioned on the side edges of the positioning seats 42, and the vertical plate 1 and the rib plate 2 at the end of the fish-belly sill are assembled together through the combination of the first vertical positioning plates 43 and the positioning seats 42.
The positioning seat 42, the first vertical positioning plate 43, the first positioning block 44 and the fixture 45 are detachably connected with the base frame 41, and the base frame 41 is detachably connected with the platform 3.
Optionally, the positioning seat 42, the first vertical positioning plate 43, the first positioning block 44, and the fixture 45 are connected to the base frame 41 through a first fastening member 46, a first gasket 47 is further padded between the first fastening member 46 and the base frame 41, the number of the first gaskets 47 is variable, and the number of the first gaskets 47 can be changed according to actual needs to meet different requirements.
Optionally, the first fastener 46 is a socket head cap screw.
Optionally, the first washer 47 is a spring washer and/or a flat washer.
Optionally, the base frame 41 includes two plates 411 and a plurality of risers 412, and the plurality of risers 412 are vertically connected between the two plates 411, so that the base frame 41 with a certain height can accommodate two fish-bellies with higher ends.
Optionally, a magnet is arranged on the positioning seat 42 and used for adsorbing the rib plate 2 so as to position the rib plate 2, and compared with the existing positioning mode, the scheme provided by the embodiment of the invention is more convenient to operate and has higher precision.
Fig. 4 is a schematic structural view of a second positioning module and a pressing module assembly in the assembly welding tool for a vertical plate and a rib plate in a fish-belly sill according to the first embodiment of the present invention, as shown in fig. 4, the second positioning module 5 includes an inclined positioning seat 51, an inclined positioning plate 52 and a first flat plate 53, the pressing module assembly includes a first side tightening 54, the inclined positioning seat 51 is used for positioning an inclined rib plate 2, the inclined positioning plate 52 is used for positioning an inclined surface section, the first side tightening 54 is used for pressing a side surface of the vertical plate 1, and 2 vertical plates 1 at the inclined surface section of the fish-belly sill and the inclined rib plate 2 are assembled by a combination of the second positioning module 5 and the first side tightening 54.
The quantity of slant locating plate 52 is a plurality of, and a plurality of slant locating plates 52 divide into two and arrange, and the quantity of inclined plane positioning seat 51 is a plurality of, and a plurality of inclined plane positioning seats 51 are located two between the slant locating plate 52, and first side top is tightly 54 to be located the side of inclined plane positioning seat 52, assembles riser 1 and gusset 2 of fish belly sill inclined plane section department through the combination of a plurality of slant locating plates 52 and a plurality of inclined plane positioning seats 51.
The inclined plane positioning seat 51, the inclined positioning plate 52 and the first side jacking 54 are detachably connected with the first plate 53, and the first plate 53 is detachably connected with the platform 3.
Optionally, the inclined plane positioning seat 51, the inclined positioning plate 52, the first side abutting 54 and the first flat plate 53 are connected through a second fastening member 55, a second gasket 56 is further padded between the second fastening member 55 and the first flat plate 53, the number of the second gaskets 56 is variable, and the number of the second gaskets 56 can be changed according to actual needs to meet different requirements.
Optionally, the bevel positioning seat 51 is inclined on the base 511 with an inclined surface.
Optionally, the second fastener 55 is a socket head cap screw.
Optionally, the second washer 56 is a spring washer and/or a flat washer.
Optionally, the inclined plane positioning seat 51 is provided with a magnet, the magnet is used for adsorbing the rib plate 2, the magnet has the same effect as the magnet arranged on the positioning seat 42, the magnet arranged on the inclined plane positioning seat 51 is used for positioning the inclined rib plate, the operation is convenient, and the positioning accuracy is higher than the accuracy of the existing position of the rib plate inside the fish-belly sill drawn by the sample plate.
Fig. 5 is a schematic structural view of a third positioning module and a pressing module assembly in the assembly welding tool for a vertical plate and a rib plate in a fish-belly sill according to the first embodiment of the present invention, as shown in fig. 5, the third positioning module 6 includes a plurality of second vertical positioning plates 61, a plurality of second positioning blocks 62 and a second flat plate 63, the pressing module assembly includes a plurality of second side tightening devices 64, the plurality of second vertical positioning plates 61 are arranged in two rows, the plurality of second positioning blocks 62 are arranged between the plurality of second vertical positioning plates 61, the second side tightening devices 64 are arranged at the side edges of the second vertical positioning plates 61, and 2 vertical plates 1 and rib plates 2 at the middle section of the fish-belly sill are assembled by the combination of the third positioning module 6 and the second side tightening devices 64.
The second vertical positioning plate 61, the second positioning block 62 and the second side jacking 64 are detachably connected with the second flat plate 63, and the second flat plate 63 is detachably connected with the platform 3.
Optionally, the second vertical positioning plate 61, the second positioning block 62, the second side abutting block 64 and the second flat plate 63 are connected through a third fastener 65, a third gasket 66 is padded between the third fastener 65 and the second flat plate 63, the number of the third gaskets 66 is variable, and the number of the third gaskets 66 can be changed according to actual needs to meet different requirements.
Optionally, the third fastener 65 is a socket head cap screw.
Optionally, the third washer 66 is a spring washer and/or a flat washer.
The fish-belly sill assembly welding tool for the vertical plate and the rib plate in the fish-belly sill provided by the embodiment of the invention comprises an upper cover plate, a lower cover plate, a pair of vertical plates and a plurality of rib plates, wherein the vertical plates are connected through the rib plates, the upper cover plate and the lower cover plate are respectively covered and connected with the top and the bottom of the vertical plates, two ends of each vertical plate are tilted, the middle part of each vertical plate is a straight line section, an inclined plane section is arranged between the middle part of each vertical plate and the end part of each vertical plate, and the assembly welding tool for the vertical plate and the rib: the positioning module assembly comprises a first positioning module, a second positioning module and a third positioning module, wherein the first positioning module is used for positioning the end part, the second positioning module is used for positioning the inclined plane section, the third positioning module is used for positioning the middle part, and the compressing module assembly is used for clamping the top and/or the side of the vertical plate. According to the embodiment of the invention, the two vertical plates and the plurality of rib plates are directly assembled together through the positioning module assembly and the pressing module assembly, and the assembling positions are the positions of the vertical plates and the rib plates, so that the low quality caused by repeated tire entering and sample plate scribing in one-time assembly welding is avoided, the one-time assembly welding process is simplified, and the efficiency of the whole tool is improved.
Example two
The embodiment of the invention provides a welding method of a fish-bellied beam, which is applied to an assembly welding tool of a middle vertical plate and a rib plate of the fish-bellied beam, wherein the specific structure, the working principle and the function of the assembly welding tool of the middle vertical plate and the rib plate of the fish-bellied beam are described in detail in the first embodiment, and are not described again here.
The welding method of the fish-belly sill provided by the embodiment of the invention comprises the following steps:
vertically placing a vertical plate 1 of a fish-bellied beam on a platform 3, respectively positioning the end part of the fish-bellied beam through a first positioning module 4, positioning the inclined plane of the fish-bellied beam through a second positioning module 5, positioning the middle part of the fish-bellied beam through a third positioning module 6, and clamping the top and/or the side of the vertical plate 1 through a pressing module assembly;
placing the rib plates 2 between the vertical plates 1, and spot-welding the vertical plates 1 and the rib plates 2;
spot welding the rib plate 2 and the lower cover plate;
welding the inner side of the lower cover plate, the inner sides of the vertical plate 1 and the rib plate 2 in a symmetrical welding sequence from the middle to the two ends;
spot welding the outer side of the upper cover plate and the outer side of the vertical plate 1;
the outer side of the upper cover plate and the outer side of the vertical plate 1, the outer side of the lower cover plate and the outer side of the vertical plate 1 are welded in sequence, and the welding sequence is that the welding is gradually and symmetrically conducted from the middle to the two ends.
In the process of welding the welding seams of the inner cavity of the fish-belly sill, the welding seams of the inner cavity are classified into three types, namely a rib plate 2 and lower cover plate connecting welding seam, a vertical plate 1 and lower cover plate connecting welding seam and a rib plate 2 and vertical plate 1 connecting welding seam. The connecting welding seam of the vertical plate 1 and the inner cavity of the lower cover plate is divided into N +1 sections by the N rib plates 2. When welding the inner cavity of the fish-belly sill, the general sequence is that the rib plate 2 and the lower cover plate connecting welding seam are welded firstly, then the vertical plate 1 and the lower cover plate connecting welding seam are welded, and finally the rib plate 2 and the vertical plate 1 connecting welding seam are welded. Specifically, firstly, welding seams of the rib plates 2 positioned in the middle of the fish-belly sill and the lower cover plate are welded, then welding seams of other rib plates 2 and the lower cover plate are welded to one end of the fish-belly sill in sequence by taking the middle as a reference, and then welding seams of other rib plates 2 and the lower cover plate are welded to the other end of the fish-belly sill in sequence by taking the middle as a reference; secondly, firstly welding a section of welding seam of the vertical plate 1 and the lower cover plate which are positioned in the middle of the fish-belly sill and divided by the two rib plates 2, then sequentially welding other welding seams of the vertical plate 1 and the lower cover plate which are divided by the rib plates 2 to one end by taking the middle section welding seam as a reference, and sequentially welding other welding seams of the vertical plate 1 and the lower cover plate which are divided by the rib plates 2 to the other end by taking the middle section welding seam as a reference; and thirdly, welding the welding seams of the rib plates 2 and the vertical plates 1 in the middle of the fish-belly sill, sequentially welding the welding seams of other rib plates 2 and the vertical plates 1 to one end by taking the middle as a reference, and sequentially welding the welding seams of other rib plates 2 and the vertical plates 1 to the other end by taking the middle as a reference.
The welding is carried out by adopting the sequence, welding deformation is basically avoided after welding, and the sequence can be suitable for manual welding and also can be suitable for automatic welding of a manipulator.
Optionally, in order to control the deformation of the welding, in this embodiment, the welding of the fish-bellied beam is performed in three stages: priming (1 procedure), filling (no or 1 or N procedures) and capping (1 procedure), wherein the current of each stage is as follows: a bottom 240A-250A, a filling 260A-270A, and a cover 240A-250A.
In the process of welding the external weld of the fish-belly sill, the external weld is summarized into four types, namely a welding seam for connecting the vertical plate 1 (left) (one end is defined as left, and the other end is defined as right) with the upper cover plate, a welding seam for connecting the vertical plate 1 (left) with the lower cover plate, and a welding seam for connecting the vertical plate 1 (right) with the lower cover plate. When welding the external weld of the fish-belly sill, the general order is that the welding seam is connected with the upper cover plate by welding the vertical plate 1, then the welding seam is connected with the lower cover plate by welding the vertical plate 1, and each welding seam is welded from the middle to two ends, so that the stress of the workpiece is released to the two ends. Specifically, in the first step, a welding seam bottoming layer is connected with an upper cover plate by a welding vertical plate 1 (left), the middle part of a fish-belly sill is used for arc starting, firstly, the left end is welded, the arc is stopped after the welding seam is welded to the leftmost end of the fish-belly sill, then, the arc is started at the welding seam which is 30mm away from the left end of the arc starting position in the middle part of the fish-belly sill, and the bottoming layer is welded to the right end; secondly, welding the vertical plate 1 (right) and the upper cover plate to connect a welding seam bottoming layer, wherein the specific operation sequence is the same as that of the first step; thirdly, welding the vertical plate 1 (right) and the lower cover plate to connect a welding seam to form a bottom layer, wherein the specific operation sequence is the same as that of the first step; and fourthly, welding the vertical plate 1 (left) and the lower cover plate to connect a welding seam bottoming layer, wherein the specific operation sequence is the same as that of the first step. And (4) completing the filling and welding of the cover surface welding line in sequence according to the sequence. It should be noted that when the middle part of the fish-belly sill is in arc striking, each welding seam needs to be staggered by a certain distance, so that the welding joints of each layer of welding seam are not overlapped, and the welding quality of the welding seam is ensured.
The welding method can effectively avoid the concentrated input and dispersion of welding heat, and can ensure that the welding stress is uniformly transmitted and released to two ends, thereby realizing the purposes of controlling the welding deformation of parts and reducing the adjustment and repair amount after welding, improving the product generation efficiency and ensuring the welding quality of products. The assembly spot-fixing tool belongs to a positioning tool, the positioning tool has more positioning elements, and more positioning devices and pressing devices are needed for limiting small parts, so that the space is limited, spot-fixing is needed firstly, and then a special welding tool is used for welding; the assembling and welding tool for the vertical plate and the rib plate in the fish-belly sill provided by the invention is an assembling and spot-fixing tool, is placed on a special welding tool after spot-fixing, and is welded by adopting mechanical hand welding or manual welding. Generally speaking, after spot welding of a welded vertical plate, a welded rib plate and a lower cover plate, an internal cavity is manually welded, then an upper cover plate is assembled, after spot welding, the upper cover plate is placed on a special welding tool, and a robot hand welds 4 long welding seams on the outer side. In the welding process, the welding is slowly carried out from the middle to the two ends, because the welding is still forcefully carried out from the middle to the two ends, the deformation is not too large due to slow constraint, and if the welding is carried out from the end parts, the deformation is large as the farthest end is not constrained at any point. The welding method of the fish-belly sill provided by the invention can ensure that the fish-belly sill has small deformation after welding, save the cost and reduce the labor intensity of workers.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it is to be understood that the description of the terms "some embodiments" or the like is intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiments or examples is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
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. Any simple modification, equivalent change and modification of the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a fish-bellied beam riser and group welding frock of gusset, the fish-bellied beam includes upper cover plate, lower cover plate, a pair of riser and a plurality of gusset, the riser passes through the gusset is connected, the upper cover plate with the lower cover plate covers respectively and is connected the top and the bottom of riser, the both ends perk of riser, the middle part of riser is the straightway, the middle part of riser with be the inclined plane section between the tip of riser, its characterized in that, the group welding frock of riser and gusset in the fish-bellied beam includes: the platform and be located positioning module subassembly and the module subassembly that compresses tightly on the platform, the positioning module subassembly includes first positioning module, second positioning module and third positioning module, wherein, first positioning module is used for the location the tip, the second positioning module is used for the location the inclined plane section, the third positioning module is used for the location the middle part, it is used for pressing from both sides tightly to compress tightly the module subassembly the top and/or the side of riser.
2. The assembly welding tool of claim 1, wherein the platform is a frame-type flip platform.
3. The assembly welding tool according to claim 1, wherein the first positioning module comprises a base frame, a positioning seat, a first vertical positioning plate and a first positioning block, the pressing module assembly comprises a fixture, the positioning seat is used for positioning the rib plate, the first vertical positioning plate is used for positioning the vertical plate, the first positioning block is used for positioning the lower part of the vertical plate, and the fixture is used for pressing the top and the side of the vertical plate;
the number of the first vertical positioning plates is multiple, the first vertical positioning plates are arranged in two rows, the number of the positioning seats is multiple, the positioning seats are located between the two rows of the first vertical positioning plates, the number of the first positioning blocks is multiple, and the first positioning blocks are located on the side edges of the positioning seats;
the positioning seat, the first vertical positioning plate, the first positioning block and the fixture are detachably connected with the base body frame, and the base body frame is detachably connected with the platform.
4. The assembly welding tool according to claim 1, wherein the second positioning module comprises an inclined plane positioning seat, an inclined positioning plate and a first flat plate, the pressing module assembly comprises a first side tightening device, the inclined plane positioning seat is used for positioning the inclined rib plate, the inclined positioning plate is used for positioning the inclined plane section, and the first side tightening device is used for pressing the side face of the vertical plate;
the number of the inclined positioning plates is multiple, the inclined positioning plates are arranged in two rows, the number of the inclined positioning seats is multiple, the inclined positioning seats are located between the two rows of the inclined positioning plates, and the first side of each inclined positioning seat abuts against the side edge of the corresponding inclined positioning seat;
the inclined plane positioning seat, the inclined positioning plate and the first side jacking are detachably connected with the first flat plate, and the first flat plate is detachably connected with the platform.
5. The assembly welding tool according to claim 1, wherein the third positioning module comprises second vertical positioning plates, a plurality of second positioning blocks and a second flat plate, the pressing module assembly comprises a second side pressing device, the number of the second vertical positioning plates is multiple, the second vertical positioning plates are arranged in two rows, the number of the second positioning blocks is multiple, the second positioning blocks are located among the second vertical positioning plates, and the second side pressing device is located on the side edge of the second vertical positioning plate;
the second vertical positioning plate, the second positioning block and the second side jacking block are detachably connected with the second flat plate, and the second flat plate is detachably connected with the platform.
6. The assembly welding tool of claim 3, wherein the base frame comprises two flat plates and a plurality of risers vertically connected between the two flat plates.
7. The assembly welding tool according to claim 3, wherein a magnet is arranged on the positioning seat and used for adsorbing the rib plate.
8. The assembly welding tool according to claim 4, wherein a magnet is arranged on the bevel positioning seat and used for adsorbing the rib plate.
9. The assembly welding tool of claim 1, wherein there are two sets of the positioning module assembly and the pressing module assembly, and the two sets of the positioning module assembly and the pressing module assembly are arranged on the platform in parallel.
10. The welding method of the fish-bellied beam is applied to the assembly welding tool for the vertical plate and the rib plate in the fish-bellied beam according to any one of claims 1 to 9, and is characterized by comprising the following steps:
vertically placing a vertical plate of a fish-belly sill on a platform, respectively positioning the end part of the fish-belly sill through a first positioning module, positioning the inclined plane of the fish-belly sill through a second positioning module, positioning the middle part of the fish-belly sill through a third positioning module, and clamping the top and/or the side of the vertical plate through a pressing module assembly; (ii) a
Placing a rib plate between the vertical plates, and spot-welding the vertical plates and the rib plate;
spot welding the rib plate and the lower cover plate;
welding the inner side of the lower cover plate and the inner side of the vertical plate in a symmetrical welding sequence from the middle to the two ends;
spot welding the outer side of the upper cover plate and the outer side of the vertical plate;
and sequentially welding the outer side of the upper cover plate and the outer side of the vertical plate, and the outer side of the lower cover plate and the outer side of the vertical plate, wherein the welding sequence is that the welding is performed from the middle to the two ends gradually and symmetrically.
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| CN201811597261.0A CN111360468B (en) | 2018-12-26 | 2018-12-26 | Assembly welding tool for vertical plate and rib plate in fish-belly sill and welding method for fish-belly sill |
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| CN201811597261.0A CN111360468B (en) | 2018-12-26 | 2018-12-26 | Assembly welding tool for vertical plate and rib plate in fish-belly sill and welding method for fish-belly sill |
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| CN111360468B CN111360468B (en) | 2022-04-22 |
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| CN113263286A (en) * | 2021-04-22 | 2021-08-17 | 中车长春轨道客车股份有限公司 | Assembly device for side beam rib plate and vertical plate of railway vehicle bogie |
| CN114043129A (en) * | 2021-11-11 | 2022-02-15 | 中车长春轨道客车股份有限公司 | Method for detecting and welding workpiece by using assembly welding device |
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