CN112775603A - Integrated modular welding tool for rail car power system mounting seat - Google Patents
Integrated modular welding tool for rail car power system mounting seat Download PDFInfo
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- CN112775603A CN112775603A CN202110108430.5A CN202110108430A CN112775603A CN 112775603 A CN112775603 A CN 112775603A CN 202110108430 A CN202110108430 A CN 202110108430A CN 112775603 A CN112775603 A CN 112775603A
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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
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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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Abstract
The utility model provides an integrated form modularization welding frock for railcar driving system mount pad, each layer step face all is equipped with the same positioning device that is used for the mount pad position to adjust with mount pad quantity on the multilayer echelonment body frame, the positional relation between a plurality of positioning devices is the same with the welding position relation of a plurality of mount pads on solebar, a plurality of mount pads change its hookup location on multilayer echelonment body frame through positioning device, realize that a plurality of mount pad stiff ends integrated in multilayer echelonment body frame bottom keep away solebar smoothly, and the tack weld after the positioning on multilayer echelonment body frame. The invention ensures the height difference size of each mounting seat, improves the welding position precision of each mounting seat and the hole pitch size precision of the mounting surface for mounting the power system on the mounting seat, has large rigidity of the multilayer stepped main frame, is beneficial to the deformation control of the mounting seats in the welding process, reduces the welding difficulty of the mounting seats of the power system and improves the welding efficiency of the mounting seats.
Description
Technical Field
The invention belongs to the technical field of rail engineering machinery, and particularly relates to an integrated modular welding tool for a rail car power system mounting seat.
Background
With the continuous improvement of urban subway traffic scale, operation speed, operation mileage, operation frequency and the like in China, the rail car becomes the first traffic of people going out. The rail car of the related art comprises a frame and a power system installed on the frame, wherein the power system needs to be supported on the frame through a plurality of power system installation seats welded on the frame, 6 installation seats in the GCD-1000/DAS-12 vehicle type frame for supporting the power system are 1 group, in order to ensure the reliability of the power system, the precision of the hole pitch size on the installation surface for installing the power system on the installation seat is required to be +/-0.5 mm, and the installation surfaces of the installation seats at different installation positions on the frame longitudinal beam have different height differences, however, if the 6 installation seats are respectively and independently welded, the measurement of the height difference size of the installation surface is difficult, the guarantee is difficult, and due to the influence of welding deformation, the size of the hole pitch on the installation surface for installing the power system on the installation seat is difficult; the patent application No. 201910611479.5 entitled "railcar dynamic system mount pad subassembly" (hereinafter referred to as a reference document) discloses a structure for accurate welding of mount pads, which adopts a tooling comprising a rectangular main frame, through holes formed by penetrating through the positions of four corners of the main frame and positioning pins extending around the through holes, wherein four mount pads are fixed on the tooling by bolts, and then the tooling is disassembled after the four mount pads are welded to corresponding positions of a frame, but the tooling is only suitable for welding and fixing a plurality of mount pads with the same height on a frame longitudinal beam, and when the plurality of mount pads with the height difference are fixed, the welding requirements cannot be met; furthermore, if the problem of height difference of the mounting seats is not considered, because the opening size between the frame longitudinal beams is smaller than the opening size required by the mounting seats, if the tool structure in the comparison file is adopted, when the tool drives the whole mounting seat of the power system to fall downwards, the phenomenon of interference between the mounting seats and the frame longitudinal beams can exist, and the mounting seats cannot smoothly fall to the welding positions of the frame longitudinal beams; therefore, in view of the above, there is a need for improvement.
Disclosure of Invention
The technical problems solved by the invention are as follows: the utility model provides an integrated form modularization welding frock for rail car driving system mount pad, utilize step installation face and the positioning device on the multilayer echelonment body frame to guarantee the difference in height size of each mount pad, use multilayer echelonment body frame as the benchmark to make the mount pad wholly weld on the frame, the welding position precision of individual mount pad has been improved, and the pitch-row size precision on the installation face that is used for installing driving system on the mount pad, multilayer echelonment body frame rigidity is big, be favorable to the deformation control of welding process mount pad, the welding degree of difficulty of driving system mount pad has been reduced, the welding efficiency of mount pad has been improved.
The technical scheme adopted by the invention is as follows: the integrated modular welding tool for the installation seats of the power system of the rail car comprises a multilayer stepped main frame, wherein the height sequence of steps on each layer of the multilayer stepped main frame is the same as the height sequence and the height difference of a plurality of installation seats which are welded to a frame longitudinal beam and used for supporting the power system; the step surfaces of all layers of the multilayer stepped main frame are provided with positioning devices which are the same as the mounting seats in number and used for adjusting the positions of the mounting seats, the position relation among the positioning devices is the same as the welding position relation of the mounting seats on the frame longitudinal beam, the mounting seats below the multilayer stepped main frame change the connection positions of the mounting seats on the multilayer stepped main frame through the positioning devices, the purpose that the fixed ends of the mounting seats integrated at the bottom of the multilayer stepped main frame smoothly pass through the frame longitudinal beam is achieved, and the positioning welding is carried out after the positioning on the multilayer stepped main frame.
The number of the stepped layers of the multi-layer stepped main frame is determined according to the number of the mounting seats with different heights.
Further, the positioning device includes mounting panel and positioning bolt, the mounting panel is fixed in multilayer echelonment body frame upper end step face and is close to outer department of following, the system has the mounting hole and the technology that run through multilayer echelonment body frame on the mounting panel and dodges the inboard that hole and technology dodged the hole and lie in the mounting hole, the positioning bolt of the driving system link of change connection mount dodges the hole or the adaptation position of mounting hole with the technology, a plurality of mount pad stiff ends of integrated on multilayer echelonment body frame when the hole adaptation is dodged with the technology to the positioning bolt of the driving system link of realization connection mount pad avoid the solebar smoothly, or the positioning bolt of the driving system link of connection mount pad and the positioning weld of a plurality of mount pad stiff ends of integrated on multilayer echelonment body frame when the mounting hole adaptation.
Further, the multilayer ladder-shaped main frame comprises a plurality of layers of ladder-shaped main plates and a plurality of reinforcing ribs arranged on the upper end surfaces and the bottom surfaces of the multilayer ladder-shaped main plates.
Further, the multilayer stepped main board is composed of a first stepped board, a second stepped board, a third stepped board, a first vertical board and a second vertical board, the board surfaces of the first stepped board and the second stepped board are in a T-shaped structure, two position adjusting devices are symmetrically arranged on the widest board surfaces of the first stepped board and the second stepped board, two position adjusting devices are symmetrically arranged at the edge of the board surface of the third stepped board, the narrow end of the first stepped board and the wide end of the second stepped board are fixedly connected into a stepped structure through the first vertical board, the narrow end of the second stepped board and the third stepped board are fixedly connected into a stepped structure through the second vertical board, and the height difference of the lower end surfaces of the first stepped board, the second stepped board and the third stepped board is the same as the height difference of mounting seats with three heights; first layer ladder board bottom surface transversely is fixed with the strengthening rib that is located the positioner below, be fixed with a plurality of strengthening ribs that link firmly with first vertical board along its length direction on the first layer ladder board bottom surface, second layer ladder board up end is fixed with a plurality of strengthening ribs with first vertical board fixed connection, be fixed with a plurality of strengthening ribs that link firmly with the vertical board of second on the second layer ladder board bottom surface, third layer ladder board up end is fixed with a plurality of strengthening ribs that link firmly with the vertical board of second.
Furthermore, the middle part of the plate surface in the length direction of the first layer of stepped plate and the middle part of the plate surface in the width direction of the second layer of stepped plate are both provided with weight-reducing waist-shaped holes.
Furthermore, lifting lugs which are positioned on the same plane with the positioning device are arranged on the step surface of the multilayer stepped main frame.
Compared with the prior art, the invention has the advantages that:
1. according to the technical scheme, the multi-layer stepped main frame with the same height sequence of each layer of steps as the plurality of mounting seats to be welded to the frame longitudinal beam and the same height difference is manufactured, the positioning devices which are the same as the number of the mounting seats and used for adjusting the positions of the mounting seats are arranged on the surface of each layer of steps on the multi-layer stepped main frame, the fixed ends of the plurality of mounting seats integrated at the bottom of the multi-layer stepped main frame can smoothly avoid the frame longitudinal beam, and the multi-layer stepped main frame is positioned and welded after being positioned, so that the welding difficulty of the mounting seats is greatly simplified;
2. the technical scheme ensures the height difference size of each mounting seat by utilizing the step mounting surface and the positioning device on the multilayer stepped main frame, and integrally welds the mounting seats on the frame by taking the multilayer stepped main frame as a reference, thereby improving the welding position precision of each mounting seat and the hole pitch size precision on the mounting surface for mounting a power system on the mounting seats;
3. according to the technical scheme, the mounting plates, the positioning bolts, the mounting holes and the process avoiding holes are arranged on the multilayer stepped main frame, so that the position of the mounting seats positioned on the multilayer stepped main frame is adjusted while the strength of the supporting parts of the mounting seats is improved, the mounting seats integrated on the multilayer stepped main frame can smoothly avoid frame carlings and are positioned to the welding positioning positions, and the defect that the mounting seats integrated on the multilayer stepped main frame interfere with the frame carlings is overcome;
4. this technical scheme adopts the multilayer echelonment body frame that multilayer echelonment mainboard and strengthening rib formed by first layer ladder board, second floor ladder board, third layer ladder board, first vertical board and the vertical board of second are constituteed for multilayer echelonment body frame has great rigidity, is favorable to the deformation control of welding process mount pad, has reduced the welding degree of difficulty of driving system mount pad, has improved the welding efficiency of mount pad.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a top view of the structure of the present invention;
FIG. 3 is a left side view of the structure of the present invention;
FIG. 4 is a front view of the present invention in use;
fig. 5 is a top view of the present invention in use.
Detailed Description
In the following, an embodiment of the present invention will be described in conjunction with fig. 1 to 5, so as to clearly and completely describe the technical solutions, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, not the whole embodiment.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
An integrated modular welding tool for installation seats of a power system of a rail car comprises a multilayer stepped main frame 1, wherein the height sequence of steps on each layer of the multilayer stepped main frame 1 is the same as the height sequence and the height difference of a plurality of installation seats which are welded to a frame longitudinal beam and used for supporting the power system; the step surfaces of all layers on the multilayer stepped main frame 1 are provided with positioning devices which are the same as the mounting seats in number and used for adjusting the positions of the mounting seats, the position relation among the positioning devices is the same as the welding position relation of the mounting seats on the frame longitudinal beam, the mounting seats below the multilayer stepped main frame 1 change the connecting positions of the mounting seats on the multilayer stepped main frame 1 through the positioning devices, the purpose that the fixed ends of the mounting seats integrated at the bottom of the multilayer stepped main frame 1 smoothly pass through the frame longitudinal beam is achieved, and the positioning welding is carried out after the positioning on the multilayer stepped main frame 1; in the structure, the multi-layer stepped main frame 1 is manufactured, wherein the height sequence of each layer of steps is the same as the height sequence of a plurality of mounting seats to be welded to the frame longitudinal beam, and the height difference is also the same, and the positioning devices which are the same as the number of the mounting seats and used for adjusting the positions of the mounting seats are arranged on the step surfaces of each layer of the multi-layer stepped main frame 1, so that the fixed ends of the mounting seats integrated at the bottom of the multi-layer stepped main frame can smoothly pass through the frame longitudinal beam, and the positioning welding is carried out after the positioning on the multi-layer stepped main frame, and the welding difficulty of the mounting seats is greatly simplified; the height difference size of each mounting seat is ensured by utilizing the step mounting surface and the positioning device on the multilayer stepped main frame 1, and the multilayer stepped main frame 1 is used as a reference to be integrally welded on the frame, so that the welding position precision of each mounting seat and the hole pitch size precision on the mounting surface for mounting a power system on each mounting seat are improved;
the number of the step layers of the multi-layer step-shaped main frame 1 is determined according to the number of the mounting seats with different heights.
The positioning device has the following specific structure: the positioning device includes mounting panel 2 and positioning bolt, mounting panel 2 is fixed in 1 upper end step face of multilayer echelonment body frame and is close to outer edge department, the system has mounting hole 3 and the technology that runs through multilayer echelonment body frame 1 on the mounting panel 2 and dodges hole 4 and technology and dodge hole 4 and be located the inboard of mounting hole 3, the positioning bolt and the technology of the driving system link of change connection mount dodge hole 4 or the adaptation position of mounting hole 3, realize that the positioning bolt of the driving system link of connection mount and technology integrate when dodging hole 4 adaptation in multilayer echelonment body frame 1 a plurality of mount pad stiff ends and have dodged the solebar smoothly, or the positioning bolt of the driving system link of connection mount and the positioning welding of a plurality of mount pad stiff ends on multilayer echelonment body frame 1 when the positioning bolt of mounting pad and the 3 adaptations of mounting hole. In the structure, the mounting plates 2, the positioning bolts, the mounting holes 3 and the process avoiding holes 4 are arranged on the multi-layer stepped main frame 1, so that the strength of the supporting parts of the mounting seats is improved, the positions of the mounting seats positioned on the multi-layer stepped main frame 1 are adjusted, the mounting seats integrated on the multi-layer stepped main frame 1 can smoothly avoid the frame longitudinal beams and are positioned to the welding positioning positions, and the defect of interference between the mounting seats integrated on the multi-layer stepped main frame 1 and the frame longitudinal beams is overcome;
the multilayer ladder-shaped main frame 1 has the following specific structure: the multilayer ladder-shaped main frame 1 comprises a multilayer ladder-shaped main plate and a plurality of reinforcing ribs 1-6 arranged on the upper end surface and the bottom surface of the multilayer ladder-shaped main plate.
The welding of six mount pads of three kinds of height on the frame longeron is taken as an example, and the concrete structure of multilayer echelonment mainboard is as follows: the multilayer stepped mainboard comprises a first layer of stepped plate 1-1, a second layer of stepped plate 1-2, a third layer of stepped plate 1-3, a first vertical plate 1-4 and a second vertical plate 1-5, wherein the surfaces of the first layer of stepped plate 1-1 and the second layer of stepped plate 1-2 are in a T-shaped structure, two positioning devices are symmetrically arranged on the widest surfaces of the first layer of stepped plate 1-1 and the second layer of stepped plate 1-2, two positioning devices are symmetrically arranged at the edge of the surface of the third layer of stepped plate 1-3, the narrow end of the first layer of stepped plate 1-1 and the wide end of the second layer of stepped plate 1-2 are fixedly connected into a stepped structure through the first vertical plate 1-4, the narrow end of the second layer of stepped plate 1-2 and the third layer of stepped plate 1-3 are fixedly connected into a stepped structure through the second vertical plate 1-5, the height difference of the lower end faces of the first layer of stepped plate 1-1, the second layer of stepped plate 1-2 and the third layer of stepped plate 1-3 is the same as the height difference of the mounting seats with the three heights; the bottom surface of the first layer of stepped plate 1-1 is transversely fixed with a reinforcing rib 1-6 positioned below the position adjusting device, the bottom surface of the first layer of stepped plate 1-1 is fixed with a plurality of reinforcing ribs 1-6 fixedly connected with the first vertical plate 1-4 along the length direction, the upper end surface of the second layer of stepped plate 1-2 is fixed with a plurality of reinforcing ribs 1-6 fixedly connected with the first vertical plate 1-4, the bottom surface of the second layer of stepped plate 1-2 is fixed with a plurality of reinforcing ribs 1-6 fixedly connected with the second vertical plate 1-5, and the upper end surface of the third layer of stepped plate 1-3 is fixed with a plurality of reinforcing ribs 1-6 fixedly connected with the second vertical plate 1-5; in the structure, the multilayer stepped main frame 1 formed by the multilayer stepped main plate consisting of the first layer stepped plate 1-1, the second layer stepped plate 1-2, the third layer stepped plate 1-3, the first vertical plate 1-4 and the second vertical plate 1-5 and the reinforcing ribs 1-6 is adopted, so that the multilayer stepped main frame 1 has higher rigidity, the deformation control of the mounting seat in the welding process is facilitated, the welding difficulty of the mounting seat of the power system is reduced, and the welding efficiency of the mounting seat is improved; specifically, in order to reduce the weight of the tool, a weight-reducing waist-shaped hole 1-7 is machined in the middle of the plate surface of the first layer of stepped plate 1-1 in the length direction and the middle of the plate surface of the second layer of stepped plate 1-2 in the width direction.
After the six installation seats are positioned and installed on the multilayer stepped main frame 1, in order to facilitate hoisting the multilayer stepped main frame 1, lifting lugs 5 which are positioned on the same plane with the positioning device are arranged on the step surface of the multilayer stepped main frame 1.
As shown in fig. 4-5, the specific application method is as follows: the lower plane of the frame is arranged upwards, the frame is placed on a welding platform, firstly, the power system mounting seats are fixedly mounted on the step surface corresponding to the bottom of the multilayer step-shaped main frame 1 through the position adjusting bolts matched with the process avoiding holes 4 according to the height relation, then, the multilayer step-shaped main frame 1 is hoisted to the upper part of the frame by using a crown block and slowly falls downwards, the welding ends of the mounting seats penetrate through the open steps between the frame longitudinal beams until the multilayer step-shaped main frame 1 falls to the corresponding positions of the frame longitudinal beams, the position adjusting bolts of the mounting seats in the process avoiding holes 4 are taken out, all the power system mounting seats are moved outwards, the mounting seats are fixed on the multilayer step-shaped main frame 1 again through the matching of the position adjusting bolts and the mounting holes 3, the front-back position and the left-right position of the tool are adjusted according to the center line of the frame and the marked power system mounting seat position line, after, and after the welding seam is cooled, the positioning bolt is dismounted, and the tool is taken out.
The above-mentioned embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and therefore, all equivalent changes made by the contents of the claims of the present invention should be included in the claims of the present invention.
Claims (7)
1. A integrated form modularization welding frock for railcar driving system mount pad, its characterized in that: the multi-layer ladder-shaped main frame (1) is characterized in that the height sequence of steps of each layer on the multi-layer ladder-shaped main frame (1) is the same as the height sequence of a plurality of mounting seats to be welded to a frame longitudinal beam and used for supporting a power system, and the height difference is also the same; the step surfaces of all layers on the multilayer stepped main frame (1) are provided with positioning devices which are the same as the mounting seats in number and used for adjusting the positions of the mounting seats, the position relation among the positioning devices is the same as the welding position relation of the mounting seats on the frame longitudinal beam, the mounting seats below the multilayer stepped main frame (1) change the connection positions of the mounting seats on the multilayer stepped main frame (1) through the positioning devices, the purpose that the fixed ends of the mounting seats integrated at the bottom of the multilayer stepped main frame (1) smoothly avoid the frame longitudinal beam is achieved, and the positioning welding is carried out after the positioning on the multilayer stepped main frame (1).
2. The integrated modular welding tool for rail car power system mounts of claim 1, wherein: the number of the stepped layers of the multi-layer stepped main frame (1) is determined according to the number of the mounting seats with different heights.
3. The integrated modular welding tool for rail car power system mounts of claim 1, wherein: the positioning device comprises an installation plate (2) and a positioning bolt, the installation plate (2) is fixed at the position, close to the outer edge, of the step surface at the upper end of the multilayer stepped main frame (1), the mounting plate (2) is provided with a mounting hole (3) penetrating through the multilayer ladder-shaped main frame (1) and a process avoiding hole (4), the process avoiding hole (4) is positioned at the inner side of the mounting hole (3), the position adjusting bolt of the power system connecting end of the mounting seat is changed to be matched with the process avoiding hole (4) or the mounting hole (3), the plurality of mounting seat fixed ends integrated on the multilayer ladder-shaped main frame (1) when the position adjusting bolt of the power system connecting end of the mounting seat is matched with the process avoiding hole (4) can smoothly avoid the frame longitudinal beam, or the positioning bolts of the power system connecting end of the connecting seat are integrated on the positioning welding of a plurality of fixing ends of the mounting seat on the multilayer ladder-shaped main frame (1) when being matched with the mounting holes (3).
4. The integrated modular welding tool for rail car power system mounts of claim 1, wherein: the multilayer ladder-shaped main frame (1) comprises a multilayer ladder-shaped main plate and a plurality of reinforcing ribs (1-6) arranged on the upper end surface and the bottom surface of the multilayer ladder-shaped main plate.
5. The integrated modular welding tool for rail car power system mounts of claim 4, wherein: the multilayer ladder-shaped main board is composed of a first layer ladder plate (1-1), a second layer ladder plate (1-2), a third layer ladder plate (1-3), a first vertical plate (1-4) and a second vertical plate (1-5), the surfaces of the first layer ladder plate (1-1) and the second layer ladder plate (1-2) are of a T-shaped structure, two positioning devices are symmetrically arranged on the widest surfaces of the first layer ladder plate (1-1) and the second layer ladder plate (1-2), two positioning devices are symmetrically arranged at the edge of the surface of the third layer ladder plate (1-3), the narrow end of the first layer ladder plate (1-1) and the wide end of the second layer ladder plate (1-2) are fixedly connected into a ladder-shaped structure through the first vertical plate (1-4), and the narrow end of the second layer ladder plate (1-2) and the third layer ladder plate (1-3) are fixedly connected into a ladder-shaped structure through the second vertical plate (1-4) The plates (1-5) are fixedly connected into a stepped structure, and the height difference of the lower end faces of the first layer of stepped plate (1-1), the second layer of stepped plate (1-2) and the third layer of stepped plate (1-3) is the same as the height difference of the mounting seats with the three heights; the novel steel plate ladder is characterized in that reinforcing ribs (1-6) located below the position adjusting device are transversely fixed to the bottom surface of the first layer stepped plate (1-1), a plurality of reinforcing ribs (1-6) fixedly connected with the first vertical plate (1-4) are fixed to the bottom surface of the first layer stepped plate (1-1) along the length direction of the first layer stepped plate, a plurality of reinforcing ribs (1-6) fixedly connected with the first vertical plate (1-4) are fixed to the upper end face of the second layer stepped plate (1-2), a plurality of reinforcing ribs (1-6) fixedly connected with the second vertical plate (1-5) are fixed to the bottom surface of the second layer stepped plate (1-2), and a plurality of reinforcing ribs (1-6) fixedly connected with the second vertical plate (1-5) are fixed to the upper end face of the third layer stepped plate (1-3).
6. The integrated modular welding tool for rail car power system mounts of claim 5, wherein: the middle part of the plate surface of the first layer of stepped plate (1-1) in the length direction and the middle part of the plate surface of the second layer of stepped plate (1-2) in the width direction are provided with weight-reducing waist-shaped holes (1-7).
7. The integrated modular welding tool for rail car power system mounts of any one of claims 1 to 6, wherein: the step surface of the multilayer ladder-shaped main frame (1) is provided with a lifting lug (5) which is positioned on the same plane with the positioning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110108430.5A CN112775603A (en) | 2021-01-27 | 2021-01-27 | Integrated modular welding tool for rail car power system mounting seat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110108430.5A CN112775603A (en) | 2021-01-27 | 2021-01-27 | Integrated modular welding tool for rail car power system mounting seat |
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| CN112775603A true CN112775603A (en) | 2021-05-11 |
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| CN202110108430.5A Pending CN112775603A (en) | 2021-01-27 | 2021-01-27 | Integrated modular welding tool for rail car power system mounting seat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405525A (en) * | 2021-08-19 | 2021-09-17 | 中国铁建电气化局集团第五工程有限公司 | Device of subway shield interval communication system and support positioning method |
-
2021
- 2021-01-27 CN CN202110108430.5A patent/CN112775603A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405525A (en) * | 2021-08-19 | 2021-09-17 | 中国铁建电气化局集团第五工程有限公司 | Device of subway shield interval communication system and support positioning method |
| CN113405525B (en) * | 2021-08-19 | 2021-12-03 | 中国铁建电气化局集团第五工程有限公司 | Device of subway shield interval communication system and support positioning method |
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