CN112067442A - Aerospace storage box welding spot rosin joint quantitative detection device and method - Google Patents
Aerospace storage box welding spot rosin joint quantitative detection device and method Download PDFInfo
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- CN112067442A CN112067442A CN202010956350.0A CN202010956350A CN112067442A CN 112067442 A CN112067442 A CN 112067442A CN 202010956350 A CN202010956350 A CN 202010956350A CN 112067442 A CN112067442 A CN 112067442A
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- 238000003466 welding Methods 0.000 title claims abstract description 89
- 238000001514 detection method Methods 0.000 title claims abstract description 51
- 238000003860 storage Methods 0.000 title claims abstract description 30
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 title claims abstract description 18
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 title claims abstract description 18
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 229910000679 solder Inorganic materials 0.000 claims description 13
- 238000013461 design Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims description 2
- 238000013139 quantization Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 6
- 230000001066 destructive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009658 destructive testing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036544 posture Effects 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0296—Welds
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
Abstract
The invention provides a space storage tank welding spot rosin joint quantitative detection device which comprises a prying head, a structural rod, a pressurizing handle and a control panel, wherein the control panel is arranged on the upper side of the structural rod, the prying head is connected to the front end of the structural rod, the pressurizing handle is connected to the rear end of the structural rod, a control module is arranged inside the structural rod, a pressure sensor and a U-shaped key touch are arranged in the pressurizing handle, the upper end of the pressure sensor is connected with the U-shaped key touch, a digital display screen and keys are arranged on the control panel, the digital display screen is connected with the output end of the control module, and the pressure sensor and the keys are connected to the input end of the control. The invention has the beneficial effects that: the magnitude of force applied to the designated position of the crowbar is acquired through a pressure sensor, the force borne by the crowbar at the crowbar prying position is displayed through torque conversion, and finally spot welding strength quantitative detection is realized; the detection cost is low, the detection efficiency is high, the reliability is high, and the requirement on personnel is low.
Description
Technical Field
The invention belongs to the technical field of aerospace storage box welding spot rosin joint detection, and particularly relates to a device and a method for quantitatively detecting aerospace storage box welding spot rosin joints.
Background
The storage box is used as an important component of the carrier rocket, is not only an rocket body bearing structure, but also a carrier for storing various propellants, and is internally provided with an anti-swirl baffle structure and a bracket for mounting a sensor. These structures are often connected to the inner wall of the tank by resistance spot welding. Taking a certain type of hydrogen fuel tank as an example, the number of spot welds is about 1500 in total.
In the spot welding process, due to the fact that spot welding parameter fluctuation can cause welding spot insufficient welding, problems of insufficient diameter, splashing, air holes, shrinkage porosity, cracks and the like exist in a welding core, and further the spot welding strength is reduced. When the rocket is filled and flies, the spot welding connecting structures are stressed, if the strength cannot meet the design requirement due to insufficient welding of welding spots, the structural parts can loosen and even fall off, and then accidents about success and failure of launching tasks are caused. Therefore, in the production and manufacturing process, the insufficient welding condition of the welding spot of the aerospace storage box needs to be detected.
The existing detection mode for the insufficient welding condition of the welding spot of the aerospace storage box mainly comprises destructive detection and nondestructive detection. The process of traditional destructive testing is to pry or gouge spot welded metal pieces and check the weld strength through such peel or shear tests. If the traditional destructive method is adopted to detect the insufficient welding condition of the welding points of the aerospace storage box, a great deal of time and energy are consumed due to the thin wall thickness of the storage box and the large number of the welding points, and once the defects are detected, related parts must be scrapped. Moreover, human factors influence the detection process greatly, different detection personnel, working postures and tools can generate different effects, and the situations of error waste or missed detection and the like are easy to occur.
The most important means in the spot welding nondestructive inspection method is ultrasonic inspection. The method for detecting the welding spot by ultrasonic waves mainly utilizes the reflection of the ultrasonic waves on a metal air interface to judge the diameter of the welding zone, but because a welding core connected with metal atoms and a pressing metal part connected with molecular force do not have air interfaces in the spot welding process and the ultrasonic waves can pass through the welding core and the pressing metal part, the proportion of the welding core and the pressing metal part cannot be effectively distinguished by the ultrasonic detection in the actual operation, the direct influence factor of the strength of the insufficient welding spot is the diameter of the welding core, the insufficient welding spot with the unqualified welding core diameter can be mistakenly judged as the qualified welding spot by the ultrasonic detection, and the detection accuracy cannot reach 100%. In the aerospace carrying system engineering, in order to guarantee the perfect transmission and flight, the quality of all parts must guarantee 100% of the qualification rate, so the current ultrasonic spot welding detection technology cannot be popularized and applied in the spot welding rosin joint detection of the storage tank of the carrier rocket.
Disclosure of Invention
In view of the above, the present invention aims to provide a device and a method for quantitatively detecting insufficient solder joints of an aerospace storage tank, so as to solve the above-mentioned problems.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the utility model provides a space flight storage tank solder joint rosin joint quantization detection device, includes prying head, structure pole, pressurization handle and control panel, the structure pole upside is equipped with control panel, and the prying head is connected to the front end, and the pressurization handle is connected to the rear end, the inside control module that is equipped with of structure pole, it touches to be equipped with pressure sensor and U-shaped key in the pressurization handle, and pressure sensor connects the U-shaped key in the upper end and touches, last digital display screen and the button of being equipped with of control panel, the digital display screen is connected with control module's output, pressure sensor and key connection are to control module's input.
Further, the structure pole upper surface is equipped with the ascending recess of opening, the recess upside is connected with control panel, just install control module in the recess, the last fluting that is equipped with of control panel install digital display screen and button in the fluting, the control module input passes through AD sampling module and connects pressure sensor.
Further, the angle of the prying head is 130 degrees.
Further, the key touch is a U-shaped key touch.
Furthermore, the prying head, the structural rod and the pressurizing handle are connected through a pin shaft structure.
Further, the control panel is connected with the structural rod through a screw structure.
The invention provides another embodiment based on the aerospace storage box welding spot rosin joint quantitative detection device, and the aerospace storage box welding spot rosin joint quantitative detection method comprises the following steps:
A. selecting a critical value R according to a spot welding part to be pried up, and inputting the critical value R into a detection system through a key on a control panel;
B. inserting the prying head into the detected spot welding structure;
C. pressing a U-shaped key of the pressurizing handle by a hand to continuously apply force, transmitting the pressure into the control module through the pressure sensor, comparing the pressure with a set critical R value, when the pressure value transmitted by the pressure sensor is greater than R, lighting a warning lamp, and displaying a pressure value born by a prying part through torque conversion in real time by a display screen;
D. releasing the pressed U-shaped key touch, and enabling the display screen to display and return to zero;
E. the prying position is unchanged, the U-shaped key of the pressurizing handle is pressed again to touch the force, the warning lamp is lightened, and the detection part is moved out;
F. if the spot welding position is not loosened or cracked before the warning light is lightened in the two stress application processes, the spot welding strength at the spot welding position is considered to meet the design requirement; if the spot welding position loosens or cracks before the warning light is turned on once, the spot welding strength at the spot welding position is considered to be not satisfied with the design requirement, and the force displayed by the digital display screen is the maximum force which can be borne by the spot welding structure at the moment when the spot welding structure loosens or cracks.
Compared with the prior art, the device and the method for quantitatively detecting the insufficient solder joint of the welding spot of the aerospace storage box have the following advantages:
the quantitative detection device for the insufficient welding spot of the aerospace storage box acquires the magnitude of force applied to the designated position of the crowbar through the pressure sensor, displays the force borne by the crowbar at the crowbar prying position through torque conversion, and finally realizes quantitative detection of spot welding strength; during detection, a critical value is set on a detection system according to the spot welding position, when the force is applied to the critical value, a warning lamp is turned on, the force is stopped, and if the spot welding structure is not pried, the spot welding strength at the spot welding position can be considered to meet the requirement; the detection cost is low, one set of detection system can meet all types of spot welding detection of the storage box, and the possibility of part tearing caused by excessive stress is avoided; the detection efficiency is high, a critical value is set in the detection process, and when the same spot welding structure is detected, the warning lamp can be lightened only by inserting a gap position and pressurizing; the detection reliability is high; in the detection process, excessive setting, operation and calculation are avoided, and the requirement on personnel is low; the validity of detection can be ensured as long as the pressure critical value is ensured to be accurate.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a device for quantitatively detecting insufficient solder joints of an aerospace storage tank according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of an electric control system in the welding spot rosin joint quantitative detection device for the aerospace storage tank according to the embodiment of the invention;
FIG. 3 is a flowchart of a method for quantitatively detecting insufficient solder joints of an aerospace storage tank according to an embodiment of the invention;
FIG. 4 is a first configuration of spot welding of the reservoir;
FIG. 5 is a second configuration of spot welding of the reservoir;
FIG. 6 is a third configuration of spot welding of the reservoir.
Description of reference numerals:
1-prying up the head; 2-structural rods; 3-a control panel; 4-pressurizing the handle.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 and 2, an aerospace storage box solder joint rosin joint quantification detection device, including prying head 1, structure pole 2, control panel 3 and pressurization handle 4, 2 upsides on the structure pole are equipped with control panel 3, and prying head 1 is connected to the front end, and pressurization handle 4 is connected to the rear end, 2 inside control module that is equipped with on the structure pole, it touches to be equipped with pressure sensor and U-shaped key in the pressurization handle 4, and the U-shaped key is connected to the pressure sensor upper end and touches, be equipped with digital display screen and button on the control panel 3, the digital display screen is connected with control module's output, pressure sensor and button are connected to control module's input.
The utility model discloses a pressure sensor, including structural rod 2, recess upside, control module, AD sampling module, control module input, control module, display screen, button, control module, display screen, button, AD sampling module, pressure sensor, AD sampling.
The angle of the prying head 1 is 130 degrees.
The key touch is a U-shaped key touch.
Prying head 1, structure pole 2, all being connected through the round pin axle construction between the pressurization handle 4, logical groove has all been seted up at the both ends of structure pole 2, the one end that prying head 1 and pressurization handle 4 are connected with structure pole 2 all is equipped with the connecting block, the connecting block is through the round pin hub connection in leading to the groove.
The control panel 3 is connected with the structural rod 2 through a screw structure.
As shown in fig. 3, the aerospace storage tank solder joint rosin joint quantitative detection apparatus according to another embodiment of the present invention includes:
A. selecting a critical value R according to a spot welding part to be pried up, and inputting the critical value R into a detection system through a key on a control panel 3;
B. inserting the prying head 1 into the detected spot welding structure;
C. pressing a U-shaped key of the pressurizing handle 4 with a hand to continuously apply force, transmitting the pressure into the control module through the pressure sensor, comparing the pressure with a set critical R value, when the pressure value transmitted by the pressure sensor is greater than R, lighting a warning lamp, and displaying a pressure value born by a prying part through torque conversion in real time by a display screen;
D. releasing the pressed U-shaped key touch, and enabling the display screen to display and return to zero;
E. the prying position is unchanged, the U-shaped key of the pressurizing handle 4 is pressed again to touch the force, the warning lamp is lightened, and the detection part is moved out;
F. if the spot welding position is not loosened or cracked before the warning light is lightened in the two stress application processes, the spot welding strength at the spot welding position is considered to meet the design requirement; if the spot welding position loosens or cracks before the warning light is turned on once, the spot welding strength at the spot welding position is considered to be not satisfied with the design requirement, and the force displayed by the digital display screen is the maximum force which can be borne by the spot welding structure at the moment when the spot welding structure loosens or cracks.
Thus, according to the steps, the structural strength of other spot welding is detected.
The tank spot weld mainly includes three configurations as shown in fig. 4 to 6, and the pry detection position is shown by an arrow in the figure.
The device carries out structural design on the basis of traditional crow bar, gathers the size of afterburning at the crow bar assigned position through pressure sensor, demonstrates the power that bears at the crow bar position of prizing through the moment conversion, finally realizes that spot welding strength measurement is surveyed. During detection, a critical value is set on the detection system according to the detection spot welding position, when the force is applied to the critical value, the warning lamp is turned on to stop applying the force, and if the spot welding structure is not pried, the spot welding strength at the position can be considered to meet the requirement.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a space flight storage tank solder joint rosin joint quantization detection device which characterized in that: including prizing head, structure pole, pressurization handle and control panel, the structure pole upside is equipped with control panel, and the prizing head is connected to the front end, and the pressurization handle is connected to the rear end, the inside control module that is equipped with of structure pole, it touches to be equipped with pressure sensor and U-shaped key in the pressurization handle, and pressure sensor connects the U-shaped key in the upper end and touches, last digital display screen and the button of being equipped with of control panel, the digital display screen is connected with control module's output, pressure sensor and key connection are to control module's input.
2. The aerospace storage box solder joint rosin joint quantitative detection device according to claim 1, characterized in that: the utility model discloses a structure pole, including structure pole upper surface, recess upside, control module, AD sampling module, control module input, control module, the structure pole upper surface is equipped with the ascending recess of opening, the recess upside is connected with control panel, just install control module in the recess, the last fluting that is equipped with of control panel install digital display screen and button in the fluting, the.
3. The aerospace storage box solder joint rosin joint quantitative detection device according to claim 1, characterized in that: the angle of the prying head is 130 degrees.
4. The aerospace storage box solder joint rosin joint quantitative detection device according to claim 1, characterized in that: the key touch is a U-shaped key touch.
5. The aerospace storage box solder joint rosin joint quantitative detection device according to claim 1, characterized in that: the prying head, the structural rod and the pressurizing handle are connected through a pin shaft structure.
6. The aerospace storage box solder joint rosin joint quantitative detection device according to claim 1, characterized in that: the control panel is connected with the structural rod through a screw.
7. A method for quantitatively detecting welding spot cold welding of an aerospace storage box based on any one of claims 1 to 6 comprises the following steps:
A. selecting a critical value R according to a spot welding part to be pried up, and inputting the critical value R into the control module through a key on the control panel;
B. inserting the prying head into the detected spot welding structure;
C. pressing a U-shaped key of the pressurizing handle by a hand to continuously apply force, transmitting the pressure into the control module through the pressure sensor, comparing the pressure with a set critical R value, when the pressure value transmitted by the pressure sensor is greater than R, lighting a warning lamp, and displaying a pressure value born by a prying part through torque conversion in real time by a display screen;
D. releasing the pressed U-shaped key touch, and enabling the display screen to display and return to zero;
E. the prying position is unchanged, the U-shaped key of the pressurizing handle is pressed again to touch the force, the warning lamp is lightened, and the detection part is moved out;
F. if the spot welding position is not loosened or cracked before the warning light is lightened in the two stress application processes, the spot welding strength at the spot welding position is considered to meet the design requirement; if the spot welding position loosens or cracks before the warning light is turned on once, the spot welding strength at the spot welding position is considered to be not satisfied with the design requirement, and the force displayed by the display screen is the maximum force which can be borne by the spot welding structure at the moment when the spot welding structure loosens or cracks.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010956350.0A CN112067442A (en) | 2020-09-11 | 2020-09-11 | Aerospace storage box welding spot rosin joint quantitative detection device and method |
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| CN202010956350.0A CN112067442A (en) | 2020-09-11 | 2020-09-11 | Aerospace storage box welding spot rosin joint quantitative detection device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136782A (en) * | 2021-11-29 | 2022-03-04 | 天津航天长征火箭制造有限公司 | Inspection method for box body spot welding point positioning torque prying inspection |
| CN115383371A (en) * | 2022-10-28 | 2022-11-25 | 徐州杉达瑞建材有限公司 | Welding device for reinforcement cage |
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| JPH0929452A (en) * | 1995-07-19 | 1997-02-04 | Kanto Auto Works Ltd | Pressure detection device for spot welding machine |
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| CN114136782A (en) * | 2021-11-29 | 2022-03-04 | 天津航天长征火箭制造有限公司 | Inspection method for box body spot welding point positioning torque prying inspection |
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| CN115383371A (en) * | 2022-10-28 | 2022-11-25 | 徐州杉达瑞建材有限公司 | Welding device for reinforcement cage |
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