CN214024307U - Assembly welding tool for preassembly of bottom plate of monorail vehicle framework - Google Patents
Assembly welding tool for preassembly of bottom plate of monorail vehicle framework Download PDFInfo
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- CN214024307U CN214024307U CN202023030643.0U CN202023030643U CN214024307U CN 214024307 U CN214024307 U CN 214024307U CN 202023030643 U CN202023030643 U CN 202023030643U CN 214024307 U CN214024307 U CN 214024307U
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Abstract
The utility model discloses a monorail car frame bottom plate pre-assembly welding tool, which is symmetrical horizontally and longitudinally and comprises a bottom frame, a hole positioning pin, an inner side bottom plate profile supporting body, an outer side bottom plate profile supporting body, three pressing mechanisms, a positioning supporting block and a surface profile adjusting plate, wherein the hole positioning pin, the inner side bottom plate profile supporting body and the outer side bottom plate profile supporting body are arranged on the bottom frame; the hole positioning pins are positioned at the two ends of the symmetry axis; the outer bottom plate contour supporting body and the inner bottom plate contour supporting body are respectively positioned above the outer part and the inner part of the underframe, and the outer bottom plate contour supporting body is higher than the inner bottom plate contour supporting body; the surface profile adjusting plate is arranged at four corners of the underframe and is higher than the inner bottom plate profile supporting body; the positioning supporting block is arranged on the surface profile adjusting plate; the three pressing mechanisms are respectively arranged on the outer side bottom plate contour supporting body, the surface contour adjusting plate and the inner side bottom plate contour supporting body. The utility model discloses require the profile tolerance that prefabricated correspondence on the frock according to product face profile tolerance to realize the requirement of the face profile tolerance that the product can realize the requirement after the child.
Description
Technical Field
The utility model relates to a monorail car framework bottom plate subassembly assembly welding frock in advance, mainly used monorail car framework bottom plate subassembly in advance equipment, welding.
Background
In the assembly welding process of the conventional welded structural part product of the railway vehicle, various assembly welding tools are widely adopted at present, but the common assembly welding tool only carries out constraint control on the conventional shape tolerance of the product. And the frame bottom plate pre-assembly welding tool needs to consider the control of the position tolerance of the product surface profile in the tool design, so that the surface profile requirement required by the product can be realized after the product is discharged.
The frame bottom plate pre-assembly is used as a reference for later assembly welding of the whole frame, and the assembly welding size precision determines the assembly welding size of the subsequent frame and the machining quality of corresponding machining points, so that the final product quality of the whole frame is influenced. Through designing a framework bottom plate subassembly assembly welding frock in advance, can guarantee the size control to product technical requirement, finally ensure the equipment quality of later stage framework.
Disclosure of Invention
An object of the utility model is to provide a monorail car framework bottom plate subassembly assembly welding frock in advance to according to the profile tolerance that product face profile tolerance required prefabricated corresponding on the frock, thereby realize that the product can realize the requirement of the face profile tolerance of requirement after a child.
The utility model provides a technical scheme that its technical problem adopted is:
the tooling is symmetrically arranged in the transverse direction and the longitudinal direction and comprises an underframe and a working module arranged on the underframe, wherein the working module comprises a hole positioning pin, a first pressing mechanism, an outer side bottom plate contour supporting body, a second pressing mechanism, a positioning supporting block, a second pressing mechanism, an inner side bottom plate contour supporting body and a surface contour adjusting plate; the two hole positioning pins are positioned at two ends of a symmetry axis of the tool; the outer bottom plate contour supporting body and the inner bottom plate contour supporting body are respectively positioned above the outer part and the inner part of the underframe, and the outer bottom plate contour supporting body is higher than the inner bottom plate contour supporting body; the surface profile adjusting plate is arranged at four corners of the underframe and is higher than the inner bottom plate profile supporting body; the positioning support block is arranged on the surface profile adjusting plate and used for positioning a guide wheel mounting seat of the framework bottom plate preassembly; the first pressing mechanism, the second pressing mechanism and the third pressing mechanism are respectively arranged on the outer side bottom plate contour supporting body, the surface contour degree adjusting plate and the inner side bottom plate contour supporting body.
Further, the surface profile adjusting plate is 0.5-1mm higher than the inner bottom plate profile supporting body.
Furthermore, the first pressing mechanism and the second pressing mechanism respectively comprise a base and a pressure head, and the pressure heads are arranged on the bases and press the bottom plate or the guide wheel mounting seat of the framework bottom plate pre-assembly through rotation; the third pressing mechanism is connected to the inner bottom plate contour supporting body through bolts, and the third pressing mechanism can be pressed and fixed by simultaneously screwing down or screwing up two bolts during disassembly and assembly.
Furthermore, the location supporting shoe includes locating surface and locating pin, sets up the locating pin on the locating surface.
Further, the first pressing mechanism is provided with a plurality of pressing mechanisms, and the pressing mechanisms are arranged at the outer sides of the hole positioning pins.
Further, the hole positioning pins are located at two ends of the longitudinal symmetry axis of the tool and located on the outer side bottom plate profile supporting body.
Further, the outer bottom plate profile supporting body is 0.5-1mm higher than the inner bottom plate profile supporting body.
The utility model discloses a frock advantage as follows:
through the utility model discloses an assembly welding frock can guarantee between bottom plate and the leading wheel mount pad that the wrong variable guarantees within 0.3mm (bottom plate and leading wheel assembly back are all not greater than 0.3mm along profile tolerance height difference in the thick orientation of board).
The profile degree of the prefabricated surface on the assembly welding tool can be obtained after the assembly welding of the position tolerance is realized, and the later prefabrication by adopting other mechanical modes is avoided and saved.
The processing of product face profile degree is realized on the assembly welding tool, and the production work efficiency is improved by about 20%.
Drawings
FIG. 1 is a schematic view of a frame floor preassembly;
FIG. 2 is a schematic view of the tool of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is an enlarged view of portion B of FIG. 2;
FIG. 5 is a schematic view of the positioning of the support block;
FIG. 6 is a schematic view of step 1 in the example;
FIG. 7 is a schematic view of step 2 in the example;
fig. 8 is a schematic view of a guide wheel mount: (a) a side view; (b) a perspective view;
FIG. 9 is a schematic view of step 3 in the example;
FIG. 10 is a schematic view of step 4 in the example;
the device comprises a base, a positioning pin, a first pressing mechanism, a second pressing mechanism, a positioning support block, a positioning pin, a positioning surface, a third pressing mechanism, a first pressing mechanism, a second pressing mechanism, a third pressing mechanism, a positioning pin, a positioning surface, a third pressing mechanism, a second pressing mechanism, an inner base profile support body, an 8-surface profile degree adjusting plate, a bottom plate and a guide wheel mounting seat, wherein the hole positioning pin is 1, the first pressing mechanism is 2, the outer base profile support body is 3, the second pressing mechanism is 4, the positioning support block is 5, the positioning pin is 51, the positioning surface is 52, the third pressing mechanism is 6, the inner base profile support body is 7, the 8-surface profile degree adjusting plate is 9, and the guide wheel mounting seat is 10.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
For easy understanding, the structure of the framework bottom plate preassembly is shown in fig. 1, and the framework bottom plate preassembly comprises a bottom plate 9 and guide wheel installation seats 10, wherein the guide wheel installation seats 10 are located at four corners of the bottom plate, and the framework bottom plate preassembly is symmetrically arranged up and down and left and right.
As shown in fig. 2 to 4, the welding tooling for the monorail car frame bottom plate preassembly in the embodiment includes a bottom frame and a working module, the working module is disposed on the bottom frame, the working module is a working part of the welding tooling for the monorail car frame bottom plate preassembly, and includes a hole positioning pin 1, a first pressing mechanism 2, an outer side bottom plate contour supporting body 3, a second pressing mechanism 4, a positioning supporting block 5, a third pressing mechanism 6, an inner side bottom plate contour supporting body 7, and a surface contour adjusting plate 8.
The pre-assembly welding tool for the bottom plate of the monorail car frame is bilaterally symmetrical and vertically symmetrical, and is symmetrically arranged by taking a straight line formed by connecting two hole positioning pins 1 as a symmetry axis. The partial view shown in fig. 4 is the same at the other corners of the tool.
The tool fixes a product by adopting a manual positioning and clamping mode.
Wherein, two hole locating pins 1 are located the both ends point department of the symmetry axis of bilateral symmetry (being vertical symmetry) of this frock respectively, fix a position bottom plate 9 through hole locating pin 1, ensure that bottom plate 9 places centrally on the frock, do not off-centre in length and width direction. The hole-locating pins 1 are located on the outside floor-profile support 3.
First hold-down mechanism 2 includes base and rotatory pressure head for compress tightly bottom plate 9, rotatory pressure head can give out great space through the rotation and is favorable to the product to take off child. The first pressing mechanism 2 is arranged on the outer bottom plate contour supporting body 3, and the first pressing mechanism 2 is provided in plurality, wherein the first pressing mechanism 2 is arranged on the outer side of the two hole positioning pins 1.
The second pressing mechanism 4 has the same structure as the first pressing mechanism 2. The second pressing mechanism 4 is provided on the face-contour adjusting plate 8. The third pressing mechanism 6 is arranged on the inner bottom plate contour supporting body 7; the third pressing mechanism 6 is connected to the inner side bottom plate contour supporting body 7 through bolts, and the pressing and fixing work can be completed by simultaneously screwing or screwing two bolts when the third pressing mechanism is disassembled and assembled.
The outer floor profile support 3 and the inner floor profile support 7 are used to place and support the floor 9. The outer bottom plate contour support 3 is positioned above the outer part of the underframe, the inner bottom plate contour support 7 is positioned above the inner part of the underframe, and the outer bottom plate contour support 3 is higher than the inner bottom plate contour support 7 in height, and the height difference is 0.5-1 mm.
As shown in fig. 5, the positioning support block 5 includes a positioning surface 52 and a positioning pin 51, and the positioning pin 51 is disposed on the positioning surface 52. By using the positioning support block 5, the guide wheel mount 10 itself and the product can be accurately positioned in the length and width directions after being assembled by means of the positioning surface 52 and the positioning pin 51 thereof. The positioning support block 5 is provided on the face profile adjustment plate 8.
The face profile adjusting plate 8 is located at four corners of the tool. The surface profile reversible deformation is performed on the tool by adjusting the height difference (the height difference is 0.5-1mm, namely the surface profile adjusting plate 8 is lifted by 0.5-1mm on the horizontal plane of the inner bottom plate profile supporting body 7) of the inner bottom plate profile supporting body 7 and the surface profile adjusting plate 8, namely the height difference between the surface profile adjusting plate 8 and the inner bottom plate profile supporting body 7 forms the profile of the product. In the embodiment, the height difference between the surface profile adjusting plate 8 and the inner bottom plate profile supporting body 7 is 1mm, and the surface profile of the prefabricated part on the tool is reversely deformed by 1 mm.
The assembly welding method of the pre-assembly welding tool for the bottom plate of the monorail car frame comprises the following steps:
(1) all hold-down mechanisms (a first hold-down mechanism 2, a second hold-down mechanism 4 and a second hold-down mechanism 6) of the assembly welding tool rotate towards the outer side of the tool, so that a bottom plate 9 product is ensured to have no interference when entering a tire, and meanwhile, the position of the bottom plate 9 product falling into the tool is determined by matching the tool hole positioning pin 1 with the corresponding hole position of the product. After the product falls into the tire position, the lower surface of the product of the inspection bottom plate 9 is closely contacted with the bottom plate contour support body (the outer side bottom plate contour support body 3 and the inner side bottom plate contour support body 7), and the gap is less than or equal to 0.2 mm. As shown in fig. 6.
(2) The guide wheel mounting seat 10 is placed at four end positions (four corners) of the tool according to a drawing assembly relation, the four end positions and the bottom plate 9 form an assembly relation, assembly is carried out according to the process requirement size, and the guide wheel mounting seat 10 is ensured to be longitudinally and transversely symmetrical (namely, bilaterally symmetrical and vertically symmetrical) relative to the bottom plate 9, and is less than or equal to 0.5mm in the deviated middle. In this embodiment, the outermost side of the measuring guide wheel mounting seat 10 is higher than the bottom plate 9 by 1 mm. And after rechecking the assembly relation, compressing all the compressing mechanisms. As shown in fig. 7.
(3) And (3) under the qualified condition in the step (2), performing fixed-position welding and spot fixing on the welding seam between the guide wheel mounting seat 10 and the bottom plate 9 according to a welding process, then performing welding on the front welding seam, and performing welding in a diagonal skip welding mode in the welding sequence. The diagonal stitch is made in numerical order as shown in fig. 9.
(4) And after the front welding seam is welded, performing welding seam back gouging treatment on the back of the welding seam, and welding the back cover welding seam in the front welding seam welding sequence. As shown in fig. 10.
(5) After the steps are completed, the product is placed on a detection platform after being discharged, and the product profile is measured to meet the drawing requirements.
The above description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (7)
1. The tooling is characterized by being symmetrically arranged in the transverse direction and the longitudinal direction and comprising an underframe and a working module arranged on the underframe, wherein the working module comprises a hole positioning pin, a first pressing mechanism, an outer side bottom plate contour supporting body, a second pressing mechanism, a positioning supporting block, a second pressing mechanism, an inner side bottom plate contour supporting body and a surface contour adjusting plate;
the two hole positioning pins are positioned at two ends of a symmetry axis of the tool; the outer bottom plate contour supporting body and the inner bottom plate contour supporting body are respectively positioned above the outer part and the inner part of the underframe, and the outer bottom plate contour supporting body is higher than the inner bottom plate contour supporting body; the surface profile adjusting plate is arranged at four corners of the underframe and is higher than the inner bottom plate profile supporting body; the positioning support block is arranged on the surface profile adjusting plate and used for positioning a guide wheel mounting seat of the framework bottom plate preassembly; the first pressing mechanism, the second pressing mechanism and the third pressing mechanism are respectively arranged on the outer side bottom plate contour supporting body, the surface contour degree adjusting plate and the inner side bottom plate contour supporting body.
2. The monorail car frame floor preassembly assembly welding tooling of claim 1, wherein the face profile adjustment plate is 0.5-1mm higher than the inboard floor profile support.
3. The monorail car frame bottom plate preassembly assembling and welding tool as claimed in claim 1 or 2, wherein each of the first pressing mechanism and the second pressing mechanism comprises a base and a pressing head, and the pressing head is arranged on the base and presses the bottom plate or the guide wheel mounting seat of the frame bottom plate preassembly through rotation;
the third pressing mechanism is connected to the inner bottom plate contour supporting body through bolts, and the third pressing mechanism can be pressed and fixed by simultaneously screwing down or screwing up two bolts during disassembly and assembly.
4. The monorail car frame bottom plate pre-assembly assembling and welding tool as claimed in claim 1 or 2, wherein the positioning support block comprises a positioning surface and a positioning pin, and the positioning surface is provided with the positioning pin.
5. The monorail car frame floor pre-assembly welding tool of claim 1 or 2, wherein the first pressing mechanism is provided in a plurality, and the arrangement position of the first pressing mechanism comprises the arrangement position of the first pressing mechanism on the outer side of the hole positioning pin.
6. The monorail car frame floor preassembly assembly welding tooling of claim 1 or 2, wherein the hole locating pins are located at both ends of the tooling longitudinal symmetry axis and on the outboard floor profile supports.
7. The monorail car frame floor preassembly assembly welding tool of claim 1 or 2, wherein the outer floor profile support is 0.5-1mm higher than the inner floor profile support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023030643.0U CN214024307U (en) | 2020-12-16 | 2020-12-16 | Assembly welding tool for preassembly of bottom plate of monorail vehicle framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023030643.0U CN214024307U (en) | 2020-12-16 | 2020-12-16 | Assembly welding tool for preassembly of bottom plate of monorail vehicle framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214024307U true CN214024307U (en) | 2021-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023030643.0U Active CN214024307U (en) | 2020-12-16 | 2020-12-16 | Assembly welding tool for preassembly of bottom plate of monorail vehicle framework |
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| Country | Link |
|---|---|
| CN (1) | CN214024307U (en) |
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- 2020-12-16 CN CN202023030643.0U patent/CN214024307U/en active Active
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