CN111250913A - Positioning tool and accurate positioning process for engine support of unmanned aerial vehicle - Google Patents
Positioning tool and accurate positioning process for engine support of unmanned aerial vehicle Download PDFInfo
- Publication number
- CN111250913A CN111250913A CN202010148681.1A CN202010148681A CN111250913A CN 111250913 A CN111250913 A CN 111250913A CN 202010148681 A CN202010148681 A CN 202010148681A CN 111250913 A CN111250913 A CN 111250913A
- Authority
- CN
- China
- Prior art keywords
- support
- positioning
- tool
- aerial vehicle
- unmanned aerial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/30—Stress-relieving
Abstract
The invention relates to the field of unmanned aerial vehicle manufacturing, in particular to a positioning tool and an accurate positioning process for an engine support of an unmanned aerial vehicle, wherein the support positioning tool comprises a tool main body and a clamp, the clamp is detachably connected with the tool main body, the clamp is used for positioning the spatial position of a support pipe fitting in a support, and the tool main body is used for positioning the position of an installation sleeve in the support; the tool main body comprises an upright post, an upper positioning plate and a lower positioning plate, wherein two ends of the upright post are respectively connected with the upper positioning plate and the lower positioning plate; the positioning process configures the stent tube according to a specific digital-analog spatial position structure; and welding the support pipe fitting under the constraint of the tool fixture, and performing heat treatment together to eliminate welding stress, so that the engine support is positioned.
Description
Technical Field
The invention relates to the field of unmanned aerial vehicle manufacturing, in particular to an unmanned aerial vehicle engine support positioning tool and an accurate positioning process.
Background
To unmanned aerial vehicle manufacturing field, the installing support of engine is high to its inner space and positioning accuracy's requirement to engine and its annex take place to interfere when the installation engine. As shown in fig. 1, some engine brackets 3 are irregular three-dimensional structures and are composed of a plurality of bracket pipe fittings 31 and 8 mounting sleeves 32; the bracket pipe fitting 31 is obliquely arranged, the intersection point of the end part is collected in the mounting sleeve 32, and the bracket pipe fitting has a stable structure; one end of the bracket 3 is required to be provided with an engine with high requirement on position degree, and the other end is required to be connected and assembled with a prefabricated hole site of the machine body.
At present, support 3 with supporting mechanical structure, most support pipe fittings 31 are made to the welding through artifical group during manufacturing, the artifical butt joint welding of each support pipe fitting 31 welding port after cutting according to support 3 shape, welding process is unrestricted, it is great to receive the human factor influence, and take the mode of free annealing and answering after welding, the accurate positioning of the main nodical and support pipe fitting 31's the spatial position of each support pipe fitting 31 in support 3 can not be realized to this kind of mode, welding stress can arouse structural deformation. When the support 3 is subjected to heat treatment, after annealing, deformation can be further generated, and the support 3 is unconstrained and difficult to find a reference in secondary processing, so that the manufactured support 3 has a larger difference from an actual required structure, and the normal use of the support is influenced.
The existing manual butt welding process can meet the use requirements of the support 3 with single structure, low requirement on space position and weak interchangeability, but the performance requirements of the support 3 with complex space structure, high requirement on internal space or high positioning precision cannot be met by adopting the existing manufacturing process.
Disclosure of Invention
The invention aims to: the problem that the spatial position of a support is inaccurate in positioning and large in error due to the fact that the support is welded in an unconstrained manual assembly mode in the prior art is solved, and the positioning tool and the positioning process of the engine support of the unmanned aerial vehicle are applied to the field of unmanned aerial vehicle manufacturing, so that the main intersection points of the support and the spatial position of a support pipe fitting can be accurately positioned, and the assembly precision of the engine support is guaranteed to meet the high-precision requirement.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides an unmanned aerial vehicle engine support positioning tool which comprises a tool main body and a clamp; the fixture is detachably connected with the fixture main body, the fixture main body is provided with a welding space matched with the support, the support comprises a plurality of support pipe fittings, the end part of each support pipe fitting is provided with an installation sleeve, the fixture is used for clamping and positioning the position of each support pipe fitting in the welding space, and the fixture main body is used for positioning the position of the installation sleeve. The tool main body comprises an upper positioning plate, a lower positioning plate and a stand column; the two ends of the stand column are respectively connected with an upper positioning plate and a lower positioning plate, the upper positioning plate comprises a stand column mounting hole and a support positioning hole I, and the lower positioning plate comprises a stand column mounting hole and a support positioning hole II. The upright column, the upper positioning plate and the lower positioning plate are used for limiting the whole space range of the bracket; a first support positioning hole in the upper positioning plate and a second support positioning hole in the lower positioning plate are used as positioning references of the engine support mounting sleeve, and a stand column mounting hole is used as a reference for aligning the upper positioning plate and the lower positioning plate; the upright posts play a role in positioning and connecting.
Furthermore, a first positioning groove and a second positioning groove are formed in the clamp, the first positioning groove is matched with the support pipe fitting, and the second positioning groove is matched with the stand column and used for positioning the spatial position of the support.
Furthermore, the upper positioning plate and the lower positioning plate are arranged oppositely and have the same structure, so that the upper positioning plate and the lower positioning plate can be conveniently exchanged and used, and the cost is saved.
Furthermore, the invention also comprises a pin bush which is fixed at the corresponding position of the upright post mounting hole, the first bracket positioning hole and/or the second bracket positioning hole, thereby being beneficial to positioning and assembling.
Furthermore, the upright post is a two-stage stepped shaft with a large middle and small two ends, and the two end parts are provided with threads; during assembly, the two ends of the stand column penetrate through the stand column mounting holes, and the other side of the stand column is fixedly connected through the nuts.
The invention provides an accurate positioning process of an unmanned aerial vehicle engine support, and based on the support positioning tool, the accurate positioning process comprises the following steps:
step 1, respectively preparing a tool main body and a clamp according to a support structure, and combining to form a support positioning tool;
step 4, welding the convergence intersection points of the support pipe fittings to complete the construction and the fixation of the support;
and 5, keeping the constraint states of the tool main body, the clamp and the support pipe fitting, and carrying out heat treatment on the welded support.
When the support is built, a tool (comprising a tool main body and a clamp) is used for positioning the key intersection point and the space direction of the support pipe fitting, so that the accurate positioning of the space position of the support is ensured; when the bracket is welded, the welding is carried out under the fixation of the tool, and the welding stress is sealed in the whole tool assembly through the tool main body and the clamp to form balance; before the welding stress is eliminated, if the support is taken down, the welding stress in the support can be separated from the constraint of the tool, so that the stress is redistributed, deformation is caused, and the situation of tearing of the welding seam can be caused more seriously. Therefore, when the heat treatment is eliminated after welding, the whole bracket and the tool are annealed together, and the assembly precision of the bracket is further ensured.
Preferably, the welding method is argon tungsten-arc welding, the gas flow is controlled to be 9-14L/min, and a small current of 40-70A is adopted.
Furthermore, the invention also comprises an auxiliary machining mounting plate, wherein the auxiliary machining mounting plate comprises a first support positioning hole and a second support positioning hole; after the heat treatment is finished, taking the bracket out of the tool, and fixing one side of the bracket on an auxiliary machining mounting plate; the auxiliary machining mounting plate is arranged on a machining center workbench; defining an original point by taking the first support positioning hole or the second support positioning hole on the auxiliary machining mounting plate as a coordinate, and carrying out secondary machining on a corresponding hole position on the mounting sleeve on the other side of the support; and (5) turning the support, and performing secondary processing on the corresponding hole positions on the rest mounting sleeve.
Furthermore, after secondary processing, the surface of the processed qualified bracket is cleaned, and then the primer and the finish paint are sprayed, so that the performance of the bracket is favorably improved, and the service life is prolonged.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the invention provides an unmanned aerial vehicle engine support positioning tool, which is characterized in that a tool main body and a clamp with a specific space structure are designed, the key position of a support pipe fitting is positioned, the support is built and fixed, and the high-precision requirement can be met.
2. The tool is designed to be split, all split parts of the tool can be assembled into a whole through the machined related positioning holes and grooves and the corresponding connecting pieces, and the tool has arbitrary interchangeability, is convenient to install and disassemble, can be used for multiple times, and is low in investment cost and good in economic benefit.
3. The invention is based on the tool clamp with a specific structure, and the bracket pipe fitting is welded in a butt welding manner, so that the main intersection point of the bracket pipe fitting and the spatial positions of all parts of the bracket can be accurately positioned, and the stress generated in the welding process is restrained; during heat treatment, the tool main body, the clamp and the support are simultaneously carried out, the deformation error can be integrally kept within the constraint range of the tool after annealing and stress relief, subsequent secondary processing is facilitated, the mounting precision of the support is guaranteed, and interference with accessories of the support can be avoided during engine mounting.
4. The positioning tool and the positioning process design idea provide a new idea for building a support space structure with a complex space structure, high requirement on internal space and high positioning precision, and have practical significance.
Drawings
FIG. 1 is a schematic view of the structure of the stent of the present invention.
Fig. 2 is an assembly schematic diagram of the positioning tool for the engine mount of the unmanned aerial vehicle in embodiment 1.
Fig. 3 is a bottom view of fig. 2.
FIG. 4 is a schematic view of the main structure of the tool in example 1.
FIG. 5 is a schematic view of the structure of the clip of embodiment 1.
FIG. 6 is a schematic view showing the structure of the auxiliary machining mounting plate in example 2.
FIG. 7 is a schematic view of the structure of the holder at the time of secondary processing.
Icon: 1-a tool main body; 11-upright post; 12-upper positioning plate; 13-lower positioning plate; 2-clamping; 21-a first positioning groove; 22-a second positioning groove; 3-a scaffold; 31-a stent tube; 32-mounting the sleeve; 4-pressing the cover; 5, pressing a plate; 6-auxiliary machining and plate loading; 7-column mounting holes; 81-bracket positioning hole I; 82-bracket positioning hole II; 9-pin sleeve.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
An unmanned aerial vehicle engine support positioning tool is shown in figures 2-5 and comprises a tool main body 1 and a clamp 2; anchor clamps 2 can be dismantled with frock main part 1 and be connected, frock main part 1 be equipped with the welding space of support 3 adaptation, support 3 includes a plurality of support pipe fittings 31, and 31 tip of support pipe fittings are equipped with installation cover 32, and anchor clamps 2 are used for the centre gripping and fixes a position the position of support pipe fittings 31 in the welding space, and frock main part 1 is used for the position of location installation cover 32. The tool main body 1 comprises an upper positioning plate 12, a lower positioning plate 13 and an upright post 11; the two ends of the upright post 11 are respectively connected with an upper positioning plate 12 and a lower positioning plate 13, the upper positioning plate 12 comprises an upright post mounting hole 7 and a bracket positioning hole I81, and the lower positioning plate 13 comprises an upright post mounting hole 7 and a bracket positioning hole II 82. The upright post 11, the upper positioning plate 12 and the lower positioning plate 13 are used for limiting the whole space range of the bracket 3; a first bracket positioning hole 81 in the upper positioning plate 12 and a second bracket positioning hole 82 in the lower positioning plate 13 are used as positioning references of the main intersection point mounting sleeve 32 of the bracket 3; the upright post 11 plays a role in positioning and connecting.
The clamp 2 adopts a 35CrMoA40x4 square tube, a first positioning groove 21 matched with the digital-analog state of a pipe of the support pipe fitting 31 and a second positioning groove 22 matched with the pipe of the upright post 11 are processed on a processing center, as shown in FIG. 5, when the support pipe fitting 31 is configured, a groove is ground on the corresponding support pipe fitting 31, and the spatial position of the support 3 can be ensured only by installing the corresponding support pipe fitting 31 into the prefabricated first positioning groove 21; the number of the first positioning grooves 21 is four, connecting holes are formed in two sides of the two first positioning grooves 21 on the inner side, the support pipe fittings 31 can be fixed through the bolt connection with the pressing plate 5, and the two first positioning grooves 21 on the outer side can be fixed through G-shaped clamps; the second positioning groove 22 can be connected with the clamp 2 and the upright post 11 through a gland 4 by bolts, and the gland 4 is matched with the upright post 11. The upper positioning plate 12 and the lower positioning plate 13 are formed by welding Q345 steel plates, are in a frame form, have good stability and are convenient to mount and place, as shown in figures 2 and 3; the upper positioning plate 12 further comprises a second bracket positioning hole 82 with a relative position, the lower positioning plate 13 further comprises a first bracket positioning hole 81 with a relative position, the first bracket positioning hole 81 and the second bracket positioning hole 82 on the upper positioning plate 12 correspond to the first bracket positioning hole 81 and the second bracket positioning hole 82 on the lower positioning plate 13 respectively in position, namely, the upper positioning plate 12 and the lower positioning plate 13 have the same structure and are convenient to use interchangeably. The upright post 11 is a two-stage stepped shaft with a large middle part and small two ends, the two end parts are provided with threads, the two ends of the upright post 11 penetrate through the upright post mounting holes 7, and the nuts are connected and fixed.
In addition, as shown in fig. 2 and 4, in order to avoid the direct contact between the bracket 3 and the upright post 11, the upper positioning plate 12 or the lower positioning plate 13 and the repeated abrasion in the assembling positioning, the pin bushings 9 are respectively arranged on the corresponding positions of the mounting surfaces of the upright post mounting hole 7, the bracket positioning hole I81 and the bracket positioning hole II 82, the cross section diameters of the pin bushings 9, the mounting sleeve 32 and the upright post 11 are consistent, and the positioning is easy; the pin bushing 9 is manufactured by processing 35CrMoA with strength slightly higher than 4130 and basically the same linear expansion coefficient.
Example 2
The utility model provides an unmanned aerial vehicle engine support's accurate positioning technology, based on the support location frock in embodiment 1, includes following step:
step 1, preparing a tool main body 1 and a clamp 2 with a specific space structure according to a digital-analog structure, and combining and fixing the tool main body and the clamp;
And 3, fixing each support pipe fitting 31 in the first positioning groove 21 according to the digital-analog structure by the structural position of the first positioning groove 21 on the clamp 2.
Step 4, welding the end parts of the support pipe fittings 31 to complete the building and fixing of the support 3; during welding, argon tungsten-arc welding can be adopted, the gas flow is controlled to be 9-14L/min, and small current of 40-70A is adopted; the support pipe fittings 31 are assembled in a spot welding mode from top to bottom under the clamping of the tool main body 1 and the clamp 2, and then full welding is carried out from inside to outside. And after welding is finished, detecting all welding seams.
And 5, keeping the constraint states of the tool main body 1, the clamp 2 and the support pipe fitting 31, and carrying out heat treatment on the welded support 3. During heat treatment, a mode of complete annealing in a furnace is adopted; charging at room temperature, heating to 540 ℃ at the heating rate of 160 ℃/h after charging, preserving heat for 1.5 hours at 540 ℃, then cooling to 380 ℃ at 180 ℃/h, and then discharging and air cooling; wherein the temperature difference in the furnace is not more than +/-20 ℃ in the temperature rising stage, and is not more than +/-10 ℃ in the temperature keeping stage. After the heat treatment is finished, the tool is removed, and measuring tools are used for measuring all parts of the support 3 on the scribing platform and recording numerical values.
Further, after the heat treatment process is completed, in order to enable the processed bracket 3 to be directly mounted on the unmanned aerial vehicle engine, secondary processing needs to be performed according to actual conditions, the secondary processing tool includes an auxiliary machining mounting plate 6, and as shown in fig. 6, a bracket positioning hole one 81 and a bracket positioning hole two 82 are arranged in corresponding positions of the auxiliary machining mounting plate 6. After the heat treatment is finished, taking the bracket 3 out of the tool, and fixing one side of the bracket on an auxiliary machining mounting plate 6 as shown in fig. 7; the auxiliary machining mounting plate 6 is arranged on a machining center workbench; defining an original point by taking a first support positioning hole 81 or a second support positioning hole 82 on the auxiliary machining mounting plate 6 as coordinates, and performing secondary machining on a corresponding hole position on the mounting sleeve 32 on the other side of the support 3; and (5) turning the support 3, and performing secondary processing on the corresponding hole positions on the rest mounting sleeve 32.
And performing surface spraying after the previous processes are completed and qualified. Before spraying, the steel brush and the chiba are used to remove the impurities such as rust on the surface of the bracket 3, and then the cleaning agent is used to remove the greasy dirt on the surface of the bracket 3 and the coloring and displaying agent left after flaw detection. And after the surface is cleaned, spraying a phosphating primer with strong adhesive force, spraying a first finish after the primer is solidified and dried completely, and spraying a second finish after the first finish is dried completely.
The support pipe fittings 31 are welded in an assembling way under the fixed constraint of the tool main body 1 and the clamp 2, welding stress is sealed in the whole tool assembly through the tool main body 1 and the clamp 2 to form balance, the main intersection point of the support pipe fittings 31 and the space position of the support 3 can be accurately positioned, and stress generated in welding is constrained; during heat treatment, the bracket 3 can be integrally kept in the constraint range of the tool after annealing and stress relief, so that the deformation error in the process of heat treatment and stress relief is constrained, subsequent secondary processing is facilitated, the mounting precision and the structural precision of the bracket 3 are ensured, the mounting precision can reach 0.1mm, and the interference with accessories of the engine can be avoided during the mounting of the engine.
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 and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An unmanned aerial vehicle engine support positioning tool is characterized by comprising a tool main body (1) and a clamp (2); anchor clamps (2) with frock main part (1) can be dismantled and be connected, frock main part (1) is equipped with the welding space with support (3) adaptation, support (3) include a plurality of support pipe fittings (31), support pipe fitting (31) tip is provided with installation cover (32), anchor clamps (2) are used for the centre gripping and fix a position support pipe fitting (31) are in position in the welding space, frock main part (1) is used for the location the position of installation cover (32).
2. The unmanned aerial vehicle engine support positioning tool according to claim 1, wherein the tool main body (1) comprises an upper positioning plate (12), a lower positioning plate (13) and a stand column (11); the two ends of the upright post (11) are respectively connected with the upper positioning plate (12) and the lower positioning plate (13), the upper positioning plate (12) comprises an upright post mounting hole (7) and a bracket positioning hole I (81), and the lower positioning plate (13) comprises the upright post mounting hole (7) and a bracket positioning hole II (82).
3. The unmanned aerial vehicle engine support location frock of claim 2, characterized in that, be equipped with first constant head tank (21) and second constant head tank (22) on anchor clamps (2), first constant head tank (21) match with support pipe fitting (31), second constant head tank (22) match with stand (11).
4. The unmanned aerial vehicle engine support location frock of claim 3, characterized in that, the last locating plate (12) with lower locating plate (13) set up relatively and the structure is the same.
5. The unmanned aerial vehicle engine support positioning tool of claim 4, further comprising a pin bush (9), wherein the pin bush (9) is fixed at a corresponding position of the column mounting hole (7), the first support positioning hole (81) and/or the second support positioning hole (82).
6. The unmanned aerial vehicle engine support positioning tool of claim 5, characterized in that the upright column (11) is a two-stage stepped shaft with a large middle and small ends, and both ends are provided with threads.
7. An accurate positioning process of an unmanned aerial vehicle engine support, which is characterized in that the support positioning tool is based on any one of claims 3 to 6, and comprises the following steps:
step 1, respectively preparing a tool main body (1) and a clamp (2) according to the structure of a support (3), and combining to form a support positioning tool;
step 2, fixing the mounting sleeve (32) at a first support positioning hole (81) on the upper positioning plate (12) and a second support positioning hole (82) on the lower positioning plate (13) respectively;
step 3, fixing each support pipe fitting (31) in the first positioning groove (21) according to the structural position of the first positioning groove (21) on the clamp (2);
step 4, welding the convergence intersection points of the support pipe fittings (31) to complete the construction and the fixation of the support (3);
and 5, keeping the constraint states of the tool main body (1), the clamp (2) and the support pipe fitting (31), and carrying out heat treatment on the welded support (3).
8. The precise positioning process of the unmanned aerial vehicle engine support according to claim 7, wherein the welding in the step 4 is argon tungsten-arc welding, the gas flow is 9-14L/min, and the current is 40-70A.
9. The precise positioning process of the unmanned aerial vehicle engine support frame according to claim 7, further comprising an auxiliary machining mounting plate (6), wherein the auxiliary machining mounting plate (6) comprises the first support positioning hole (81) and the second support positioning hole (82); after the step 5, taking the bracket (3) out of the tool, and fixing one side of the bracket on the auxiliary machining mounting plate (6); the auxiliary machining mounting plate (6) is arranged on a machining center workbench; defining an original point by taking the first support positioning hole (81) or the second support positioning hole (82) on the auxiliary machining mounting plate (6) as a coordinate, and performing secondary machining on a corresponding hole position on the mounting sleeve (32) on the other side of the support (3); and (3) overturning the support (3) and carrying out secondary processing on the corresponding hole positions on the rest mounting sleeve (32).
10. The precise positioning process of the unmanned aerial vehicle engine support frame according to claim 9, wherein after the secondary processing, the support frame (3) which is qualified in processing is subjected to surface cleaning, and then is sprayed with primer and finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010148681.1A CN111250913A (en) | 2020-03-05 | 2020-03-05 | Positioning tool and accurate positioning process for engine support of unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010148681.1A CN111250913A (en) | 2020-03-05 | 2020-03-05 | Positioning tool and accurate positioning process for engine support of unmanned aerial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111250913A true CN111250913A (en) | 2020-06-09 |
Family
ID=70941956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010148681.1A Pending CN111250913A (en) | 2020-03-05 | 2020-03-05 | Positioning tool and accurate positioning process for engine support of unmanned aerial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111250913A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909719A (en) * | 2021-10-09 | 2022-01-11 | 中国直升机设计研究所 | Light unmanned aerial vehicle fuselage skeleton welding set |
-
2020
- 2020-03-05 CN CN202010148681.1A patent/CN111250913A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909719A (en) * | 2021-10-09 | 2022-01-11 | 中国直升机设计研究所 | Light unmanned aerial vehicle fuselage skeleton welding set |
| CN113909719B (en) * | 2021-10-09 | 2022-09-30 | 中国直升机设计研究所 | Light unmanned aerial vehicle fuselage skeleton welding set |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112658600B (en) | Method for processing general titanium alloy cabin welded by metal plate | |
| CN111250913A (en) | Positioning tool and accurate positioning process for engine support of unmanned aerial vehicle | |
| CN111299769B (en) | Manufacturing process of unmanned aerial vehicle engine support | |
| CN104209706A (en) | Manufacture method of multi-baffle large-aperture box frame | |
| CN104452963B (en) | A method for manufacturing and constructing steel truss key component | |
| CN211728103U (en) | Unmanned aerial vehicle engine support location frock | |
| CN102218617A (en) | Rear axle assembly welding method and clamping device special for rear axle assembly welding tool | |
| CN102218613B (en) | Front axle assembly welding method and special fixture clamping device for front axle assembly welding | |
| CN107695961B (en) | Integrated trimming and detecting platform for side wall framework | |
| CN110977812A (en) | Glue joint assembly tool for star sensor support and use method | |
| CN214211018U (en) | Coating auxiliary tool for vehicle tool box cover plate | |
| CN210649312U (en) | Hot-assembling tool for roll shaft and roll sleeve of roller press | |
| CN104724299B (en) | New satellite parking device | |
| CN204867891U (en) | Hoist solid of revolution support assembly welding jig | |
| CN111531385A (en) | Stator section machining clamping device and clamping method | |
| CN219851959U (en) | Three-rivet welding point splicing tool | |
| CN220030068U (en) | Suspension assembly platform | |
| CN209811577U (en) | Positioning tire for welding large frame | |
| CN211465564U (en) | Automobile air conditioner compressor pushing disc assembly working face and earhole integrated machining tool | |
| CN115070168B (en) | Gas turbine connecting pipe support assembly tool and method | |
| CN109048207B (en) | Machining method for large wind tunnel compressor hub | |
| CN220881165U (en) | Arm welding fixture is embraced to multi-vehicle type car hoist | |
| CN216000263U (en) | Flatness adjusting clamp for locomotive cooling module | |
| CN105032657B (en) | A kind of Large-scale satellite frame spray painting equipment for supporting patient with burn | |
| CN111774760B (en) | Welding production line for longitudinal arm assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |