CN112093074A - Stringer positioning and pressing device with pressing plates - Google Patents
Stringer positioning and pressing device with pressing plates Download PDFInfo
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- CN112093074A CN112093074A CN202010925887.0A CN202010925887A CN112093074A CN 112093074 A CN112093074 A CN 112093074A CN 202010925887 A CN202010925887 A CN 202010925887A CN 112093074 A CN112093074 A CN 112093074A
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- 230000015572 biosynthetic process Effects 0.000 claims abstract 2
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
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- 238000000429 assembly Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/10—Manufacturing or assembling aircraft, e.g. jigs therefor
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Abstract
The embodiment of the invention discloses a stringer positioning and compressing device with a pressing plate, which comprises: the device comprises a base, a stringer positioning assembly, a pressing plate and a pressing plate fixing assembly; the base is provided with a rectangular clamping groove, and the stringer positioning assembly comprises a strip-shaped positioning flat plate and a stringer positioning supporting plate which are embedded into the rectangular clamping groove and can slide along the rectangular clamping groove; through clamp plate fixed subassembly swing joint between clamp plate and the stringer location layer board, after the position adjustment through clamp plate and stringer location layer board makes the locating position of L type stringer confirm, fix the clamp plate on stringer location layer board through clamp plate fixed subassembly for the one end that is close to L type stringer through the clamp plate compresses tightly the location with the stringer locating surface that stringer locating component formed to L type stringer. The embodiment of the invention solves the problems of poor positioning effect on the stringer and lack of uniform positioning standard due to no formation of a uniform and feasible positioning mode in the existing stringer, skin and web combined assembly process.
Description
Technical Field
The present application relates to, but is not limited to, the technical field of aircraft assembly, and in particular, to a stringer positioning and compressing device having a pressing plate.
Background
Stringers are a very common part of aircraft, numerous in number, and are commonly used to increase the stiffness of the skins, webs.
At present, in the process of assembling the stringer with the skin and the web in a combined manner, the stringer needs to be positioned, generally, the stringer structure mainly has an L shape, a Z shape and the like, wherein the L-shaped stringer is simple in structure and is generally used, but in the process of assembling the stringer with the skin and the web in a combined manner, a unified and feasible positioning mode is not formed, and the positioning mode is usually manually positioned by an operator, so that the positioning effect is poor, and the unified positioning standard is lacked.
Disclosure of Invention
In order to solve the technical problems, embodiments of the present invention provide a stringer positioning and compressing device with a pressing plate, so as to solve the problems that in the existing stringer, skin and web combined assembly process, a uniform and feasible positioning manner is not formed, so that the stringer positioning effect is poor, and a uniform positioning standard is lacked.
The embodiment of the invention provides a stringer positioning and pressing device with a pressing plate, which comprises: the device comprises a base 1, a stringer positioning assembly 2, a pressing plate 3 and a pressing plate fixing assembly;
the stringer positioning assembly 2 comprises a strip-shaped positioning flat plate and a stringer positioning supporting plate, wherein a rectangular clamping groove is formed in one end face of the base 1, the stringer positioning flat plate is matched with the rectangular clamping groove in shape, the stringer positioning supporting plate is vertically arranged at one end of the strip-shaped flat plate, and the strip-shaped positioning flat plate is embedded into the rectangular clamping groove of the base 1 and used for sliding along the rectangular clamping groove;
Optionally, in the stringer positioning and pressing device with pressing plates as described above, the stringer positioning and pressing device with pressing plates is placed along the position of the L-shaped stringer 8, and the base 1 is fixedly mounted on the clamping plate for fixing the overall position of the stringer positioning and pressing device.
Alternatively, in a stringer positioning hold-down device having a hold-down plate as described above,
the clamp plate 3 includes the roof and is located the curb plate of roof both sides, the cross-section of clamp plate 3 is concave type or U type for form installation space between roof and the stringer location layer board, and the curb plate that is close L type stringer 8 one side in the clamp plate 3 places on the stringer, is used for adjusting the mounted position of location stringer through clamp plate 3 and stringer locating component 2.
Alternatively, in a stringer positioning hold-down device having a hold-down plate as described above,
all be provided with waist shape clearing hole on the roof of clamp plate 3 and the stringer location layer board, clamp plate fixed component passes through the waist shape clearing hole of roof and stringer location layer board and fixes clamp plate 3 on stringer locating component 2, and adjusts the relative position of clamp plate 3 and stringer location layer board through waist shape clearing hole.
Optionally, in the stringer positioning and compressing device having a platen as described above, the platen fixing assembly includes: a knurled high-end nut 4, a nut 5 and a bolt 6;
Alternatively, in a stringer positioning hold-down device having a hold-down plate as described above,
the stringer positioning and compressing device is used for adjusting the relative positions of the pressing plate 3 and the stringer positioning supporting plate through the sliding of the bolt 6 along the stringer positioning supporting plate and the waist-shaped through hole on the pressing plate 3 before the nut 5 is not screwed down, so that the installation position of the L-shaped stringer 8 is adjusted and positioned.
Alternatively, in a stringer positioning hold-down device having a hold-down plate as described above,
the stringer positioning and compressing device is further used for applying pressing force on the pressing plate 3 by screwing up the knurled high-head nut 4 after the L-shaped stringer 8 is positioned, and fixing the L-shaped stringer 8 on a stringer positioning surface of the stringer positioning assembly 2 through the pressing plate 3.
Optionally, in the stringer positioning and compressing device with a pressing plate as described above, further comprising: a knurled screw 7 arranged on the base 1;
knurling high-head screw 7 for through slip bar location flat board with stringer locating component 2 release to be used for fixing a position L type stringer 8, through the position of the fixed stringer locating component 2 of screwing up knurling high-head screw 7.
Optionally, in the stringer positioning and compressing device with a pressing plate as described above, further comprising: and a handle arranged at the other end of the strip-shaped positioning flat plate of the stringer positioning component 2.
On one hand, the stringer positioning and compressing device with the pressing plate provided by the embodiment of the invention can adjust the overall position of the stringer positioning assembly 2 through the rectangular clamping groove of the base 1, so that the stringer positioning assembly 2 can be conveniently adjusted to a position convenient for positioning a stringer, and on the other hand, the positioned stringer can be conveniently positioned and compressed through the installation mode of the pressing plate 3 and the stringer positioning assembly 2 and the formed stringer positioning surface, and the effective positioning and compressing operation of the L-shaped stringer 8 can be quickly realized. The stringer positioning and compressing device with the pressing plate, provided by the embodiment of the invention, is suitable for positioning and compressing the L-shaped airplane stringer, has the advantages of simple structure, convenience in operation and better positioning and compressing effects, and can form a standardized positioning standard for assembling the L-shaped stringer 8.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic view of a stringer positioning and compressing device with a platen according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another perspective view of the stringer positioning hold-down device having hold-downs provided in accordance with the embodiment of FIG. 1;
FIG. 3 is a schematic perspective view of a stringer positioning and compressing device with compression plates according to the embodiment of FIG. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Aiming at the advantages of simple structure and common use of the L-shaped stringer 8, the embodiment of the invention designs the positioning and compressing device suitable for positioning and compressing the L-shaped airplane stringer, and the positioning and compressing device adopts a pressing plate structure to realize the functions of positioning and compressing.
The following specific embodiments of the present invention may be combined, and the same or similar concepts or processes may not be described in detail in some embodiments.
Fig. 1 is a schematic structural diagram of a stringer positioning and compressing device with a pressing plate according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of another perspective view of the stringer positioning and compressing device with a pressing plate according to the embodiment shown in fig. 1, and fig. 3 is a schematic perspective structural diagram of the stringer positioning and compressing device with a pressing plate according to the embodiment shown in fig. 1. Referring to the stringer positioning and compressing devices shown in fig. 1 to 3, embodiments of the present invention provide a stringer positioning and compressing device having a platen, which may include: base 1, stringer locating component 2, clamp plate 3 and clamp plate fixed component.
In the stringer positioning and compressing device provided in the embodiment shown in fig. 1 to 3, a rectangular slot is provided at one end face of a base 1, and a stringer positioning assembly 2 includes a strip-shaped positioning flat plate with a shape matching with the rectangular slot and a stringer positioning supporting plate vertically provided at one end of the strip-shaped flat plate; like this, the bar location flat board of stringer locating component 2 can imbed in the rectangle draw-in groove of base 1 to can slide along the rectangle draw-in groove, thereby adjust stringer locating component 2 for the overall position of base 1.
The pressing plate 3 in the embodiment of the invention is arranged above the stringer positioning supporting plate, a stringer installation space is arranged between the pressing plate 3 and the stringer positioning assembly 2, the end parts of the pressing plate 3 and the stringer positioning assembly 2 form a stringer positioning surface, the pressing plate 3 and the stringer positioning supporting plate are movably connected through a pressing plate fixing assembly, the positioning position of the L-shaped stringer 8 is determined through the position adjustment of the pressing plate 3 and the stringer positioning supporting plate, the pressing plate 3 is fixed on the stringer positioning supporting plate through the pressing plate fixing assembly, and the pressing plate 3 is used for compressing and positioning the L-shaped stringer 8 through the stringer positioning surface formed by one end of the pressing plate 3 close to the L-shaped stringer 8 and the stringer positioning assembly 2.
In practical application, the stringer positioning and pressing device with the pressing plate is placed along the position of the L-shaped stringer 8, and the base 1 is fixedly arranged on the clamping plate and used for fixing the integral position of the stringer positioning and pressing device.
Optionally, in the embodiment of the present invention, the pressing plate 3 includes a top plate and side plates located at two sides of the top plate, and the cross section of the pressing plate 3 is concave or U-shaped, for example, so that an installation space is formed between the top plate and the stringer positioning pallet, and the side plate of the pressing plate 3 that is far away from the L-shaped stringer 8 is located above one side of the pallet, and by the close fixing position with the stringer positioning pallet, the side plate of the pressing plate 3 that is close to one side of the L-shaped stringer 8 is placed on the stringer, for adjusting the installation position of the positioning stringer through the pressing plate 3 and the stringer positioning assembly 2.
In the embodiment of the invention, waist-shaped through holes are formed in the top plate of the pressing plate 3 and the stringer positioning supporting plate, the pressing plate fixing assembly fixes the pressing plate 3 on the stringer positioning assembly 2 through the waist-shaped through holes of the top plate and the stringer positioning supporting plate, and the relative positions of the pressing plate 3 and the stringer positioning supporting plate are adjusted through the waist-shaped through holes.
Alternatively, the platen fixing assembly in an embodiment of the present invention may include a knurled high-head nut 4, a nut 5, and a bolt 6.
Wherein, bolt 6 screw passes the waist shape clearing hole on stringer location layer board and the clamp plate 3 from the below with the back-off mode to through the cover establish on bolt 6, and be located stringer location layer board and clamp plate 3 between nut 5 the position of fixing bolt 6, knurling high-end nut 4 installs in the tip of bolt 6.
In the use process of the stringer positioning and compressing device in the embodiment of the invention, before the nut 5 is not screwed down, the relative positions of the pressure plate 3 and the stringer positioning supporting plate are adjusted through the sliding of the bolt 6 along the stringer positioning supporting plate and the waist-shaped through hole on the pressure plate 3, so that the installation position of the L-shaped stringer 8 is adjusted and positioned.
In addition, in the using process of the stringer positioning and pressing device in the embodiment of the invention, after the L-shaped stringer 8 is positioned, the knurled high-head nut 4 is screwed down to apply pressing force on the pressing plate 3, and the L-shaped stringer 8 is fixed on the stringer positioning surface of the stringer positioning assembly 2 through the pressing plate 3.
Optionally, the stringer positioning and compressing device provided in the embodiment of the present invention may further include: a knurled screw 7 arranged on the base 1;
knurling high-head screw 7 for through slip bar location flat board with stringer locating component 2 release to be used for fixing a position L type stringer 8, through the position of the fixed stringer locating component 2 of screwing up knurling high-head screw 7.
Optionally, the stringer positioning and compressing device provided in the embodiment of the present invention may further include: set up in the handle of the dull and stereotyped other end of bar location of stringer locating component 2, through this handle can be more convenient long stringer locating component 2 of slip.
On one hand, the stringer positioning and compressing device with the pressing plate provided by the embodiment of the invention can adjust the overall position of the stringer positioning assembly 2 through the rectangular clamping groove of the base 1, so that the stringer positioning assembly 2 can be conveniently adjusted to a position convenient for positioning a stringer, and on the other hand, the positioned stringer can be conveniently positioned and compressed through the installation mode of the pressing plate 3 and the stringer positioning assembly 2 and the formed stringer positioning surface, and the effective positioning and compressing operation of the L-shaped stringer 8 can be quickly realized. The stringer positioning and compressing device with the pressing plate, provided by the embodiment of the invention, is suitable for positioning and compressing the L-shaped airplane stringer, has the advantages of simple structure, convenience in operation and better positioning and compressing effects, and can form a standardized positioning standard for assembling the L-shaped stringer 8.
The manner in which the stringer positioning and compressing device of the present invention may be used is described in detail below with reference to a specific example.
Referring to fig. 1 to 3, the stringer positioning and pressing device with pressing plate comprises a base 1, a stringer positioning assembly 2, a pressing plate 3, a knurled high-head nut 4, a nut 5, a bolt 6, a knurled high-head screw 7 and other assemblies.
Stringer location closing device with clamp plate generally attaches to on the cardboard, can be through 1 fixed mounting of base on the cardboard, regard as the mounting platform of whole device with the cardboard, and whole location closing device puts along the stringer position, the one end of stringer locating component 2 is installed in the rectangle draw-in groove of base 1, and can slide along the rectangle draw-in groove, the position that stringer locating component 2 is located 1 one side of base is provided with the handle, be used for following stringer locating component 2 roll-off in the rectangle draw-in groove of base 1, make L type stringer 8 is pressed close to the tip of stringer locating component 2, thereby fix a position and compress tightly L type stringer 8, clamp plate 3 is used for compressing tightly the stringer, one side and the one side laminating of L type stringer 8 of clamp plate 3. The process of positioning and pressing the L-shaped stringer 8 by adopting the stringer positioning and pressing device with the pressing plate provided by the embodiment of the invention is as follows:
s1: pushing the stringer positioning assembly 2 out of the rectangular clamping groove of the base 1 through the handle, so that the end part of the stringer positioning assembly 2 is pushed to the L-shaped stringer 8, and positioning is started;
s2: screwing down the knurled screw 7 to fix the stringer positioning assembly 2 pushed to a proper position so that the whole position of the stringer positioning assembly is fixed;
s3: placing the pressing plate 3 on the L-shaped stringer 8;
s4: the bolt 6 passes through the stringer positioning supporting plate of the stringer positioning assembly 2 and the kidney-shaped through hole on the top plate of the pressing plate 3 from the lower part in an inverted buckling mode, the position of the pressing plate 3 is fixed by screwing the nut 5, and the bolt 6 can adjust the position along the kidney-shaped through hole on the stringer positioning supporting plate before the nut 5 is screwed;
s5: knurling high-end nut 4 is installed on the tip of bolt 6, and through screwing up knurling high-end nut 4, do power on clamp plate 3, make clamp plate 3 can firmly be fixed in on the locating surface of stringer locating component 2 with L type stringer 8.
Through the steps, the positioning and compressing functions of the L-shaped airplane stringer can be realized, and the stringer positioning and compressing device can be cancelled after the L-shaped stringer is positioned and installed.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A stringer positioning and compression device having a platen, comprising: the device comprises a base (1), a stringer positioning assembly (2), a pressing plate (3) and a pressing plate fixing assembly;
the stringer positioning assembly (2) comprises a strip-shaped positioning flat plate and a stringer positioning supporting plate, wherein a rectangular clamping groove is formed in one end face of the base (1), the shape of the strip-shaped positioning flat plate is matched with that of the rectangular clamping groove, the stringer positioning supporting plate is vertically arranged at one end of the strip-shaped flat plate, and the strip-shaped positioning flat plate is embedded into the rectangular clamping groove of the base (1) and used for sliding along the rectangular clamping groove;
clamp plate (3) set up in the top of stringer location layer board, and have stringer installation space between clamp plate (3) and stringer locating component (2), through clamp plate fixed subassembly swing joint between clamp plate (3) and the stringer locating layer board, make the location position of L type stringer (8) confirm the back through the position adjustment of clamp plate (3) and stringer locating layer board, fix clamp plate (3) on stringer locating layer board through clamp plate fixed subassembly for the one end that is close L type stringer (8) through clamp plate (3) compresses tightly the location with stringer locating surface to L type stringer (8) with the stringer locating component (2) formation.
2. The stringer positioning and compressing device with pressing plates of claim 1, wherein the stringer positioning and compressing device with pressing plates is placed along the position of the L-shaped stringer (8), and the base (1) is fixedly mounted on the clamping plate for fixing the overall position of the stringer positioning and compressing device.
3. The stringer positioning and compression device of claim 2 wherein,
the clamp plate (3) includes the roof and is located the curb plate of roof both sides, the cross-section of clamp plate (3) is concave type or U type for form installation space between roof and the stringer location layer board, and the curb plate that is close L type stringer (8) one side in clamp plate (3) places on the stringer, is used for adjusting the mounted position of location stringer through clamp plate (3) and stringer locating component (2).
4. The stringer positioning and compression device of claim 3 wherein,
all be provided with waist shape clearing hole on the roof of clamp plate (3) and the stringer location layer board, clamp plate fixed component passes through the waist shape clearing hole of roof and stringer location layer board and fixes clamp plate (3) on stringer locating component (2), and adjusts the relative position of clamp plate (3) and stringer location layer board through waist shape clearing hole.
5. The stringer positioning and compression device of claim 4 wherein said platen securement assembly comprises: a knurled high-head nut (4), a nut (5) and a bolt (6);
the bolt (6) is screwed through waist-shaped through holes in the stringer positioning supporting plate and the pressing plate (3) from the lower part in an inverted buckling mode, the bolt (6) is fixed at the position of the bolt (6) through a nut (5) which is sleeved on the bolt (6) and is positioned between the stringer positioning supporting plate and the pressing plate (3), and the knurled high-head nut (4) is installed at the end part of the bolt (6).
6. The stringer positioning and compression device of claim 5 wherein,
the stringer positioning and pressing device is used for adjusting the relative positions of the pressing plate (3) and the stringer positioning supporting plate through the sliding of the bolts (6) along the stringer positioning supporting plate and the waist-shaped through holes in the pressing plate (3) before the nuts (5) are not screwed down, so that the mounting position of the L-shaped stringer (8) is adjusted and positioned.
7. The stringer positioning and compression device of claim 6 wherein,
the stringer positioning and pressing device is further used for applying pressing force on the pressing plate (3) by screwing up the knurled high-head nut (4) after positioning of the L-shaped stringer (8) is completed, and fixing the L-shaped stringer (8) on a stringer positioning surface of the stringer positioning assembly (2) through the pressing plate (3).
8. The stringer positioning and compression device with compression plates of any of claims 1-7, further comprising: a knurled screw (7) with a high head arranged on the base (1);
knurling high-head screw (7) for push out stringer locating component (2) through slip strip location flat board and arrive the position that is used for fixing a position L type stringer (8), fix the position of stringer locating component (2) through screwing up knurling high-head screw (7).
9. The stringer positioning and compression device with compression plates of any of claims 1-7, further comprising: and a handle arranged at the other end of the strip-shaped positioning flat plate of the long truss positioning component (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010925887.0A CN112093074A (en) | 2020-09-04 | 2020-09-04 | Stringer positioning and pressing device with pressing plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010925887.0A CN112093074A (en) | 2020-09-04 | 2020-09-04 | Stringer positioning and pressing device with pressing plates |
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| Publication Number | Publication Date |
|---|---|
| CN112093074A true CN112093074A (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010925887.0A Pending CN112093074A (en) | 2020-09-04 | 2020-09-04 | Stringer positioning and pressing device with pressing plates |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1323703A (en) * | 1970-03-23 | 1973-07-18 | Gorle Whire Co Ltd | Clamping devices |
| EP1669147A1 (en) * | 2004-12-13 | 2006-06-14 | Schunk GmbH & Co. KG Spann- und Greiftechnik | Clamping Device |
| CN201864042U (en) * | 2010-11-19 | 2011-06-15 | 陕西飞机工业（集团）有限公司 | Aircraft stringer assembly device |
| US20130168911A1 (en) * | 2011-12-29 | 2013-07-04 | Yu-Cheng Chou | Rotating cylinder |
| CN103949996A (en) * | 2014-05-13 | 2014-07-30 | 四川中邦模具有限公司 | Positioning tool for machining mold |
| CN105773481A (en) * | 2016-05-06 | 2016-07-20 | 江西昌河航空工业有限公司 | Presser for airplane stringer |
| CN208084209U (en) * | 2018-04-03 | 2018-11-13 | 国家工矿电传动车辆质量监督检验中心（湖南） | A kind of engine base fast compressing device |
| US20180335118A1 (en) * | 2016-01-27 | 2018-11-22 | Positec Power Tools (Suzhou) Co., Ltd. | Oscillating Power Tool |
| CN110562479A (en) * | 2019-07-29 | 2019-12-13 | 北京中航智科技有限公司 | pneumatic performance adjusting device for paddle |
-
2020
- 2020-09-04 CN CN202010925887.0A patent/CN112093074A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1323703A (en) * | 1970-03-23 | 1973-07-18 | Gorle Whire Co Ltd | Clamping devices |
| EP1669147A1 (en) * | 2004-12-13 | 2006-06-14 | Schunk GmbH & Co. KG Spann- und Greiftechnik | Clamping Device |
| CN201864042U (en) * | 2010-11-19 | 2011-06-15 | 陕西飞机工业（集团）有限公司 | Aircraft stringer assembly device |
| US20130168911A1 (en) * | 2011-12-29 | 2013-07-04 | Yu-Cheng Chou | Rotating cylinder |
| CN103949996A (en) * | 2014-05-13 | 2014-07-30 | 四川中邦模具有限公司 | Positioning tool for machining mold |
| US20180335118A1 (en) * | 2016-01-27 | 2018-11-22 | Positec Power Tools (Suzhou) Co., Ltd. | Oscillating Power Tool |
| CN105773481A (en) * | 2016-05-06 | 2016-07-20 | 江西昌河航空工业有限公司 | Presser for airplane stringer |
| CN208084209U (en) * | 2018-04-03 | 2018-11-13 | 国家工矿电传动车辆质量监督检验中心（湖南） | A kind of engine base fast compressing device |
| CN110562479A (en) * | 2019-07-29 | 2019-12-13 | 北京中航智科技有限公司 | pneumatic performance adjusting device for paddle |
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Application publication date: 20201218 |
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