CN210614697U - Oil tank welding deformation pressure adjusting device - Google Patents
Oil tank welding deformation pressure adjusting device Download PDFInfo
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- CN210614697U CN210614697U CN201921510818.2U CN201921510818U CN210614697U CN 210614697 U CN210614697 U CN 210614697U CN 201921510818 U CN201921510818 U CN 201921510818U CN 210614697 U CN210614697 U CN 210614697U
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- 239000002828 fuel tank Substances 0.000 description 6
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Abstract
The utility model provides an oil tank welding deformation pressure timing device. The device comprises a working platform, a transverse adjusting mechanism, a vertical adjusting mechanism, a hydraulic pump station, an electric control cabinet and an adjusting operation console; the transverse adjusting mechanism is arranged on the upper surface of the working platform, and the vertical adjusting mechanism is arranged above the working platform; the hydraulic pump station is connected with the adjusting mechanism through a hydraulic pipeline to provide pressure for adjustment; the electric control cabinet is connected to the adjusting mechanism and the adjusting operation console through cables. The utility model discloses a pressure mechanism on the timing mechanism is to the oil tank position timing of exerting pressure that warp, can replace traditional hammering timing mode, need not the workman and carries out manual timing again, has alleviateed workman's intensity of labour, has reduced the harm of timing in-process noise to workman physical and mental health, has improved timing efficiency.
Description
Technical Field
The utility model relates to a technical field is made to large-scale oil tank, concretely relates to oil tank welding deformation pressure timing device.
Background
The oil tank welded and formed by the medium plate has large deformation after welding due to the influence of welding heat, the deformation part of the oil tank needs to be adjusted in order to ensure the precision requirement of the plane shape of a product, and the traditional adjustment mode is that workers hit the deformation part of the oil tank for hundreds of times by adopting a heavy hammer of 10 kilograms. On one hand, in the process of adjusting the oil tank, great noise is generated, the peripheral working environment is seriously influenced, the physical and mental health of workers is not facilitated, and the oil tank is hit by a sledgehammer, so that the labor intensity of the workers is very high, and the adjusting production efficiency is low; on the other hand, after the big hammer strikes the oil tank, dense and hemp hammering points are formed on the striking surface of the oil tank, the surface of the oil tank needs to be polished, the working strength is further improved, and the working efficiency is reduced. With the implementation of the national environmental protection law, the high-decibel noise workplaces must be gradually improved and managed, otherwise, oil tank product production enterprises face the risk of shutdown.
In summary, there is a need for a device for adjusting welding deformation pressure of an oil tank to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an oil tank welding deformation pressure timing device to solve large-scale oil tank welding deformation timing problem.
In order to achieve the purpose, the utility model provides an oil tank welding deformation pressure adjusting device, which comprises a working platform and a transverse adjusting mechanism; the transverse adjusting mechanism is arranged on the upper surface of the working platform;
the transverse adjusting mechanism comprises a transverse pressure mechanism, a transverse positioning support mechanism and a transverse pressure mechanism mounting seat; the transverse pressure mechanism mounting seat is mounted on the upper surface of the working platform; the transverse pressure mechanism is arranged on the transverse pressure mechanism mounting seat; the transverse positioning support mechanism is arranged on the upper surface of the working platform; the supporting surface of the transverse positioning supporting mechanism is vertical to the force application direction of the transverse pressure mechanism.
Preferably, the transverse adjusting mechanism further comprises two transverse screw rod mechanisms; the transverse screw rod mechanisms are arranged on the upper surface of the working platform in parallel; the transverse pressure mechanism mounting seat and the transverse positioning support mechanism are respectively mounted on the transverse screw rod mechanisms which are parallel to each other; the transverse pressure mechanism mounting seat is provided with a vertical screw rod mechanism; the transverse pressure mechanism is arranged on the vertical screw rod mechanism.
Preferably, the transverse positioning and supporting mechanism comprises a positioning support, a positioning support guide rail and a positioning support fixing block; the positioning support is connected with the positioning support guide rail through a positioning support fixing block.
Preferably, a plurality of positioning fixed blocks are symmetrically arranged on the upper surface of the working platform along the transverse screw rod mechanism; and a plurality of positioning fixed blocks are symmetrically arranged on the transverse pressure mechanism mounting seat along two sides of the vertical screw rod mechanism.
Preferably, the oil tank welding deformation pressure adjusting device further comprises a vertical adjusting mechanism; the vertical adjusting mechanism is arranged above the working platform; the vertical adjusting mechanism comprises a vertical pressure mechanism and a gantry assembly; the vertical pressure mechanism is arranged on the gantry assembly.
Preferably, the gantry assembly comprises a gantry frame and a gantry moving mechanism; the gantry moving mechanisms are symmetrically arranged on two side surfaces of the working platform; the bottom of the portal frame is connected with the portal moving mechanism.
Preferably, a vertical pressure mechanism guide rail is arranged on the portal frame beam; the vertical pressure mechanism is arranged on a guide rail of the vertical pressure mechanism.
Preferably, the oil tank welding deformation pressure adjusting mechanism further comprises a hydraulic pump station, an electric control cabinet and an adjusting operation console; the hydraulic pump station is connected to the transverse pressure mechanism and the vertical pressure mechanism through hydraulic pipelines; the electric control cabinet is connected to the transverse adjusting mechanism and the vertical adjusting mechanism through cables; the adjusting operation console is connected to the electric control cabinet through a cable.
Use the technical scheme of the utility model, following beneficial effect has:
(1) the utility model discloses in, adopt the mode that horizontal timing mechanism and perpendicular timing mechanism combined, can realize carrying out the omnidirectional timing to the oil tank, can replace traditional hammering timing mode, need not the workman and carry out manual timing again, alleviateed workman's intensity of labour, reduced timing in-process noise to the harm of workman's physical and mental health, improved timing efficiency.
(2) The utility model discloses in, horizontal timing mechanism is through horizontal lead screw mechanism, perpendicular lead screw mechanism can realize the free movement of horizontal pressure mechanism on horizontal and vertical side, can carry out no dead angle timing to the oil tank wall, perpendicular timing mechanism passes through longmen moving mechanism and perpendicular pressure mechanism guide rail, make perpendicular pressure mechanism can realize horizontal and fore-and-aft free movement, deformation to different oil tank positions has set up different timing schemes, can be to the oil tank bottom of the case, the case is followed, the mount pad carries out no dead angle timing, during the timing operation, accomplish the timing at each deformation position through removing horizontal pressure mechanism and perpendicular pressure mechanism, do not need frequently to move the oil tank, and the operation is convenient.
(3) The utility model discloses in, place the oil tank and carry out the timing on work platform, can make the oil tank be in stable state at the timing in-process, need not to carry out extra support again, the timing in-process is fixed the oil tank through horizontal positioning bearing structure, vertical pressure mechanism, prevents to take place to tumble after the oil tank is pressed.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a schematic structural diagram of a welding deformation pressure adjusting device for an oil tank;
FIG. 2 is a schematic view of a lateral adjustment mechanism;
FIG. 3 is a top view of the lateral adjustment mechanism;
FIG. 4 is a schematic view of a vertical adjustment mechanism;
FIG. 5 is a flow chart of a process for adjusting welding deformation pressure of an oil tank;
FIG. 6 is a graph of the relationship between the gauge pressure and the deformation of the fuel tank;
FIG. 7 is a schematic view of adjustment of a bulge at the bottom of the fuel tank;
FIG. 8 is a schematic view of the adjustment of the concave bottom of the fuel tank;
FIG. 9 is a schematic view of the fuel tank along the convex adjustment;
FIG. 10 is a schematic view of the tank in oblique alignment;
FIG. 11 is a view illustrating the concave adjustment of the tank edge
FIG. 12 is a schematic view of the adjustment of the fuel tank mount;
FIG. 13 is a schematic view illustrating adjustment of the inner concavity of the tank wall;
FIG. 14 is a schematic view illustrating adjustment of the protrusion of the fuel tank wall.
The device comprises a working platform 1, a transverse adjusting mechanism 2, a transverse pressure mechanism 2.1, a transverse positioning support mechanism 2.2, a transverse pressure mechanism mounting seat 2.2.1, a positioning support 2.2.2, a positioning support guide rail 2.2.3, a positioning support fixing block 2.3, a transverse pressure mechanism mounting seat 2.3.1, a vertical screw rod mechanism 2.4, a transverse screw rod mechanism 2.5, a positioning fixing block 3, a vertical adjusting mechanism 3.1, a vertical pressure mechanism 3.2, a gantry assembly 3.2.1, a gantry frame 3.2.2, a gantry moving mechanism 3.2.3, a vertical pressure mechanism guide rail 4, a hydraulic pump station 5, an electric control cabinet 6, an adjusting operation control console 7 and an oil tank.
Detailed Description
The embodiments of the invention will be described in detail hereinafter with reference to the accompanying drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Referring to fig. 1 to 14, a device for adjusting welding deformation pressure of an oil tank is applied to adjusting welding deformation of the oil tank in the embodiment.
An oil tank welding deformation pressure adjusting device is shown in figure 1 and comprises a working platform 1, a transverse adjusting mechanism 2, a vertical adjusting mechanism 3, a hydraulic pump station 4, an electric control cabinet 5 and an adjusting operation control console 6; the transverse adjusting mechanism 2 is arranged on the upper surface of the working platform 1, and the vertical adjusting mechanism 3 is erected above the working platform 1; the hydraulic pump station 4 is connected to a transverse pressure mechanism 2.1 in the transverse adjusting mechanism 2 and a vertical pressure mechanism 3.1 in the vertical adjusting mechanism 3 through hydraulic pipelines to provide pressure for adjustment; the electric control cabinet 5 is connected to the transverse adjusting mechanism 2 and the vertical adjusting mechanism 3 through cables; the adjusting operation console 6 is connected to the electric control cabinet 5 through a cable.
Referring to fig. 2, the transverse adjustment mechanism 2 includes a transverse pressure mechanism 2.1, a transverse positioning support mechanism 2.2 and a transverse pressure mechanism mounting seat 2.3; the transverse pressure mechanism mounting seat 2.3 is mounted on the upper surface of the working platform 1; the transverse pressure mechanism 2.1 is arranged on the transverse pressure mechanism mounting seat 2.3; the transverse positioning support mechanism 2.2 is arranged on the upper surface of the working platform 1; the supporting surface of the transverse positioning supporting mechanism 2.2 is perpendicular to the force application direction of the transverse pressure mechanism 2.1, and referring to fig. 3, a gap exists between the transverse pressure mechanism 2.1 and the transverse positioning supporting mechanism 2.2 for placing the wall of the oil tank 7.
Referring to fig. 2, the lateral adjustment mechanism 2 further includes two lateral screw mechanisms 2.4; the transverse screw rod mechanism 2.4 is arranged on the upper surface of the working platform 1 in parallel and is close to one end of the short side of the working platform 1; the transverse pressure mechanism mounting seat 2.3 and the transverse positioning supporting mechanism 2.2 are respectively mounted on a transverse screw rod mechanism 2.4 which is parallel to each other, and the transverse pressure mechanism mounting seat 2.3 and the transverse positioning supporting mechanism 2.2 can move back and forth along the transverse screw rod mechanism 2.4, so that different deformation positions of the oil tank in the transverse direction can be conveniently adjusted; the transverse pressure mechanism mounting seat 2.3 is mounted on a transverse screw rod mechanism 2.4 close to the edge of the working platform 1, the transverse positioning support mechanism 2.2 is mounted on a transverse screw rod mechanism 2.4 far away from the edge of the working platform 1, so that when the wall of an oil tank is conveniently adjusted, the oil tank 7 can be integrally placed on the working platform 1 without additional support, see fig. 2, two transverse pressure mechanism mounting seats 2.3 and two transverse positioning support mechanisms 2.2 are arranged in the embodiment, and different adjustment modes are conveniently set for inward concave and outward convex of the wall of the oil tank 7, see fig. 13 and 14.
Referring to fig. 3, a vertical screw rod mechanism 2.3.1 is arranged on the transverse pressure mechanism mounting seat 2.3; the transverse pressure mechanism 2.1 is arranged on the vertical screw rod mechanism 2.3.1, and the transverse pressure mechanism 2.1 can move back and forth along the vertical screw rod mechanism 2.3.1 in the height direction, so that the deformation of the tank wall of the oil tank 7 at different height positions can be conveniently adjusted.
Referring to fig. 2 and 3, the transverse positioning and supporting mechanism 2.2 includes a positioning support 2.2.1, a positioning support guide rail 2.2.2 and a positioning support fixing block 2.2.3; the positioning support 2.2.1 is connected with the positioning support guide rail 2.2.2 through the positioning support fixing block 2.2.3, the positioning support 2.2.1 can be connected to the positioning support guide rail 2.2.2 at different height positions, so that effective support is provided when the deformation of the transverse pressure mechanism 2.1 to the different height positions of the wall of the oil tank 7 is adjusted.
Referring to fig. 2, a plurality of positioning fixing blocks 2.5 are symmetrically arranged on the upper surface of the working platform 1 along a transverse screw rod mechanism 2.4, and a T-shaped groove is formed in the upper surface of the working platform 1 and used for installing the positioning fixing blocks 2.5; when the transverse pressure mechanism mounting seat 2.3 and the transverse positioning supporting mechanism 2.2 move in place, the positioning fixing block 2.5 is used for pressing and fixing the transverse pressure mechanism mounting seat 2.3 bottom plate and the transverse positioning supporting mechanism 2.2 bottom plate; the transverse pressure mechanism mounting seat 2.3 is symmetrically provided with a plurality of positioning fixing blocks 2.5 along two sides of the vertical screw rod mechanism 2.3.1, and when the transverse pressure mechanism 2.1 moves in place, the positioning fixing blocks 2.5 are used for fixing a bottom plate of the transverse pressure mechanism 2.1.
Referring to fig. 4, the vertical adjustment mechanism 3 includes a vertical pressure mechanism 3.1 and a gantry assembly 3.2; the vertical pressure mechanism 3.1 is arranged on the gantry assembly 3.2, and can adjust and calibrate the bottom, the edge and the mounting seat of the oil tank 7, as shown in figures 7 to 12.
Referring to fig. 4, the gantry assembly 3.2 includes a gantry frame 3.2.1 and a gantry moving mechanism 3.2.2; the gantry moving mechanisms 3.2.2 are symmetrically arranged on the two long side surfaces of the working platform 1; the bottom of the gantry 3.2.1 is connected with a gantry moving mechanism 3.2.2, see fig. 7, in this embodiment, two gantry frames 3.2.1 are mounted on the gantry moving mechanism 3.2.2, and the gantry frames 3.2.1 can move back and forth along the gantry moving mechanism 3.2.2, so that different positions of the oil tank 7 can be adjusted conveniently.
A vertical pressure mechanism guide rail 3.2.3 is arranged on the portal frame 3.2.1 beam; the vertical pressure mechanism 3.1 is installed on the vertical pressure mechanism guide rail 3.2.3, see fig. 7 to 12, in this embodiment, two vertical pressure mechanisms 3.1 are installed on each portal frame 3.2.1, the vertical pressure mechanism 3.1 can move back and forth on the vertical pressure mechanism guide rail 3.2.3, so as to adjust different positions of the oil tank 7, when four vertical pressure mechanisms 3.1 are adjusted, three vertical pressure mechanisms 3.1 fix the oil tank, so as to prevent the oil tank 7 from shifting and tipping over in the adjusting process, and the remaining vertical pressure mechanism 3.1 adjusts the deformed part.
The utility model provides an oil tank welding deformation pressure timing technology, adopts above-mentioned oil tank welding deformation pressure timing device to carry out the timing, pressurizes the timing work of accomplishing 7 bottom surfaces of oil tank, 7 casees of oil tank edges, 7 mount pads of oil tank and 7 tank wall welding deformation step by step through the pressure mechanism of perpendicular timing mechanism 3 and horizontal timing mechanism 2, refers to figure 5, and concrete step is as follows:
the method comprises the following steps: CAE finite element analysis is carried out on the rigid structure strength of the deformed part of the oil tank product to obtain the pressure required by the adjustment of the welding deformed part of the oil tank, and the relationship between the adjustment pressure and the deformation is shown in figure 6;
step two: selecting an adjusting mechanism and an adjusting scheme according to the deformation position and the deformation condition of the oil tank, wherein the judgment rule of selecting the adjusting mechanism and the adjusting scheme is as follows:
a. if the bottom of the oil tank 7 is convex, referring to fig. 7, the oil tank 7 is reversely buckled on the working platform 1 of the adjusting device, and the deformation part of the bottom of the oil tank is adjusted by a vertical pressure mechanism 3.1 of a vertical adjusting mechanism 3;
b. if the bottom of the oil tank 7 is concave, referring to fig. 8, the oil tank 7 is rightly placed on the working platform 1 of the adjusting device, and the deformation part of the bottom of the oil tank is adjusted by using the vertical pressure mechanism 3.1 of the vertical adjusting mechanism 3;
c. if the oil tank 7 inclines upwards along the bulge or edge, the oil tank 7 is placed on the working platform 1 of the adjusting device, the vertical pressure mechanism 3.1 of the vertical adjusting mechanism 3 is pressed on the tank edge to adjust the deformation position of the tank edge, and if the tank edge inclines upwards, the vertical pressure mechanism 3.1 is pressed on the outer side of the tank edge to adjust the tank edge, see fig. 9 and 10;
d. if the tank edge of the oil tank 7 is concave, referring to fig. 11, the oil tank 7 is reversely buckled on the working platform 1 of the adjusting device, and the deformation part of the tank edge is adjusted by a vertical pressure mechanism 3.1 of a vertical adjusting mechanism 3;
e. if the mounting seats of the oil tank 7 are not coplanar, referring to fig. 12, the oil tank 7 is reversely buckled on the working platform 1 of the adjusting device, and the mounting seats are adjusted by a vertical pressure mechanism 3.1 of a vertical adjusting mechanism 3;
f. if the wall of the oil tank 7 is concave, referring to fig. 13, the oil tank 7 is reversely buckled on the working platform 1 of the adjusting device, and two transverse pressure mechanisms 2.1 of the transverse adjusting mechanism 2 are matched with two transverse supporting and positioning mechanisms 2.2 for adjusting;
g. if the wall of the oil tank 7 protrudes outwards, see fig. 14, the oil tank 7 is turned upside down on the working platform 1 of the adjusting device, and the adjustment is carried out by matching one transverse pressure mechanism 2.1 of the transverse adjusting mechanism 2 with two transverse supporting and positioning mechanisms 2.2.
Step three: according to the pressure required by adjustment obtained in the step one, stepless pressure regulation is carried out on a pressure mechanism in the adjustment device by controlling the adjustment operation console 6, meanwhile, the current adjustment pressure value is monitored by a display screen of the adjustment operation console 6, and the pressure mechanism is pressurized step by step to adjust the welding deformation part of the oil tank 7;
step four: and measuring the oil tank 7 after adjustment, analyzing whether the adjusted oil tank 7 meets the product acceptance standard or not, and returning to the step two if the adjusted oil tank 7 does not meet the acceptance standard.
The product acceptance standard is that the flatness error of the bottom of the oil tank is less than or equal to 1mm, the flatness error of the edge of the oil tank is less than or equal to 1mm, the straightness error of the edge of the oil tank is less than or equal to 1mm, the coplanarity error of the four oil tank mounting seats is less than or equal to 1mm, and the flatness error of the wall of the oil tank is less than or equal to 1 mm.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The oil tank welding deformation pressure adjusting device is characterized by comprising a working platform (1) and a transverse adjusting mechanism (2); the transverse adjusting mechanism (2) is arranged on the upper surface of the working platform (1);
the transverse adjusting mechanism (2) comprises a transverse pressure mechanism (2.1), a transverse positioning support mechanism (2.2) and a transverse pressure mechanism mounting seat (2.3); the transverse pressure mechanism mounting seat (2.3) is mounted on the upper surface of the working platform (1); the transverse pressure mechanism (2.1) is arranged on the transverse pressure mechanism mounting seat (2.3); the transverse positioning support mechanism (2.2) is arranged on the upper surface of the working platform (1); the supporting surface of the transverse positioning supporting mechanism (2.2) is vertical to the force application direction of the transverse pressure mechanism (2.1).
2. The oil tank welding deformation pressure adjusting device as recited in claim 1, characterized in that the transverse adjusting mechanism (2) further comprises two transverse screw mechanisms (2.4); the transverse screw rod mechanisms (2.4) are arranged on the upper surface of the working platform (1) in parallel; the transverse pressure mechanism mounting seat (2.3) and the transverse positioning supporting mechanism (2.2) are respectively mounted on the transverse screw rod mechanisms (2.4) which are parallel to each other.
3. The oil tank welding deformation pressure adjusting device as recited in claim 2, characterized in that a vertical screw rod mechanism (2.3.1) is arranged on the transverse pressure mechanism mounting seat (2.3); the transverse pressure mechanism (2.1) is arranged on the vertical screw rod mechanism (2.3.1).
4. The oil tank welding deformation pressure adjusting device according to claim 3, characterized in that the transverse positioning support mechanism (2.2) comprises a positioning support (2.2.1), a positioning support guide rail (2.2.2) and a positioning support fixing block (2.2.3); the positioning support (2.2.1) is connected with the positioning support guide rail (2.2.2) through a positioning support fixing block (2.2.3).
5. The oil tank welding deformation pressure adjusting device as claimed in claim 4, characterized in that a plurality of positioning fixing blocks (2.5) are symmetrically arranged on the upper surface of the working platform (1) along the transverse screw rod mechanism (2.4); and a plurality of positioning fixed blocks (2.5) are symmetrically arranged on the transverse pressure mechanism mounting seat (2.3) along two sides of the vertical screw rod mechanism (2.3.1).
6. The adjusting device for welding deformation pressure of the oil tank is characterized by further comprising a vertical adjusting mechanism (3); the vertical adjusting mechanism (3) is erected above the working platform (1).
7. The oil tank welding deformation pressure adjusting device as recited in claim 6, characterized in that the vertical adjusting mechanism (3) comprises a vertical pressure mechanism (3.1) and a gantry assembly (3.2); the vertical pressure mechanism (3.1) is arranged on the gantry assembly (3.2).
8. The oil tank welding deformation pressure adjusting device as recited in claim 7, characterized in that the gantry assembly (3.2) comprises a gantry (3.2.1) and a gantry moving mechanism (3.2.2); the gantry moving mechanisms (3.2.2) are symmetrically arranged on two side surfaces of the working platform (1); the bottom of the portal frame (3.2.1) is connected with a portal moving mechanism (3.2.2).
9. The oil tank welding deformation pressure adjusting device as recited in claim 8, wherein a vertical pressure mechanism guide rail (3.2.3) is arranged on a cross beam of the portal frame (3.2.1); the vertical pressure mechanism (3.1) is arranged on a guide rail (3.2.3) of the vertical pressure mechanism.
10. The oil tank welding deformation pressure adjusting device according to any one of claims 7-9, further comprising a hydraulic pump station (4), an electric control cabinet (5) and an adjusting operation console (6); the hydraulic pump station (4) is connected to the transverse pressure mechanism (2.1) and the vertical pressure mechanism (3.1) through hydraulic pipelines; the electric control cabinet (5) is connected to the transverse adjusting mechanism (2) and the vertical adjusting mechanism (3) through cables; the adjusting operation console (6) is connected to the electric control cabinet (5) through a cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921510818.2U CN210614697U (en) | 2019-09-11 | 2019-09-11 | Oil tank welding deformation pressure adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921510818.2U CN210614697U (en) | 2019-09-11 | 2019-09-11 | Oil tank welding deformation pressure adjusting device |
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| CN210614697U true CN210614697U (en) | 2020-05-26 |
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| CN201921510818.2U Active CN210614697U (en) | 2019-09-11 | 2019-09-11 | Oil tank welding deformation pressure adjusting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449487A (en) * | 2019-09-11 | 2019-11-15 | 湖南联诚轨道装备有限公司 | A kind of fuel tank welding deformation pressure calibration apparatus and adjustment technique |
-
2019
- 2019-09-11 CN CN201921510818.2U patent/CN210614697U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449487A (en) * | 2019-09-11 | 2019-11-15 | 湖南联诚轨道装备有限公司 | A kind of fuel tank welding deformation pressure calibration apparatus and adjustment technique |
| CN110449487B (en) * | 2019-09-11 | 2024-10-11 | 湖南联诚轨道装备有限公司 | Oil tank welding deformation pressure adjusting device and adjusting process |
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