CN110789735A - Force-controllable double-beam clamping device - Google Patents

Force-controllable double-beam clamping device Download PDF

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Publication number
CN110789735A
CN110789735A CN201911235523.3A CN201911235523A CN110789735A CN 110789735 A CN110789735 A CN 110789735A CN 201911235523 A CN201911235523 A CN 201911235523A CN 110789735 A CN110789735 A CN 110789735A
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China
Prior art keywords
clamping
clamping rod
rod
force
hole
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CN201911235523.3A
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CN110789735B (en
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杨俊�
廖江海
闫文伟
董登科
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AVIC Aircraft Strength Research Institute
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AVIC Aircraft Strength Research Institute
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64FGROUND 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
    • B64F5/00Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
    • B64F5/60Testing or inspecting aircraft components or systems

Abstract

The invention belongs to the technical field of airplane strength tests and discloses a force-controllable double-beam clamping device which comprises a load sensor, a connecting screw rod, a clamping rod sleeve, a rod sleeve fixing bolt, a cover plate fixing bolt, a connecting bolt, an actuating cylinder, a fixing beam and a connecting beam. Screens pole cover pass through pole cover fixing bolt and fix in the locating hole of fixed beam, the screens pole passes through the internal thread at pole center and links to each other with connecting screw, connecting screw links to each other with load sensor, load sensor links to each other with the pressurized cylinder, when the tie-beam aligns with fixed beam screens hole center, force the screens hole that the screens pole passed the tie-beam through the pressurized cylinder push rod, get into the screens pole cover of fixed beam afterwards, the contact force between screens pole and the screens pole cover is confirmed to the size according to load sensor feedback load, screens in-process adjusts the elasticity degree according to feedback contact force size, the precision is high, the installation is simple, easily dismantle, the outward appearance is good-looking, and the commonality is strong.

Description

Force-controllable double-beam clamping device
Technical Field
The invention belongs to the technical field of airplane strength tests, and particularly relates to a force-controllable double-beam clamping device.
Background
In the design process of an airplane structural strength test or test device, the situation that two beams need to be positioned through positioning holes and the mutual positions of the two beams are limited is often met.
Two types of connection are most commonly used at this stage, which are fixed by bolts or bolts, as shown in fig. 1, the positioning holes of the two beams are aligned, and then the bolts or bolts are inserted through the positioning holes, and the bolts or bolts are inserted or tightened to clamp the positions. The two connection modes have three disadvantages, firstly, the connection appearance is not beautiful due to the existence of the clamping wires/bolts; secondly, the connection mode needs to realize the fixing precision between the two beams through clearance fit, and the two connection modes are not easy to disassemble; thirdly, when the bolt or bolt passes through two beam positioning holes, the large shaft hole is small, which may cause the stress inside the beam hole to be too large, and thus the normal use of the beam hole is affected.
Disclosure of Invention
In view of the above technical problems, an object of the present invention is to provide a force-controllable double-beam clamping device, which is tightly installed, easily disassembled, capable of controlling contact stress, and beautiful in appearance.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme.
A force-controllable double-beam clamping device comprises a clamping rod (4), a rod sleeve fixing bolt (5), a clamping rod sleeve (6), an actuating cylinder (7), a load sensor (8), a connecting screw rod (9), a connecting beam (10) and a fixing beam (11);
the clamping rod sleeve (6) is fixed in a positioning hole of the fixed beam (11) through a rod sleeve fixing bolt (5), the clamping rod (4) is connected with a connecting screw rod (9) through an internal thread in the center of the rod, the connecting screw rod (9) is connected with a load sensor (8), and the load sensor (8) is connected with the actuating cylinder (7).
The technical scheme of the invention has the characteristics and further improvements that:
(1) when the centers of the clamping holes of the connecting beam (10) and the fixed beam (11) are aligned, the clamping rod (4) is forced to pass through the clamping hole of the connecting beam (10) through the push rod of the actuating cylinder (7), then the clamping rod enters the clamping rod sleeve (6) of the fixed beam (11), the contact force between the clamping rod (4) and the clamping rod sleeve (6) is determined according to the feedback load of the load sensor (8), and the clamping is completed after the load meets the requirement.
(2) The device further comprises: the cover plate fixing bolt (1), the cover plate (2) and the connecting bolt (3);
after the clamping is finished, the load sensor (8), the connecting screw rod (9) and the actuator cylinder (7) are disassembled, the cover plate (2) and the connecting beam (10) are fixed through the cover plate fixing bolt (1), and the cover plate (2) and the clamping rod (4) are fixed through the connecting bolt (3).
(3) The clamping rod sleeve (6) is fixed on the positioning hole of the fixed beam (11) through a plurality of rod sleeve fixing bolts (5) which are uniformly arranged.
(4) The sleeve outer wall of screens pole cover (6) is straight section of thick bamboo through-hole, but during the locating hole of disect insertion fixed beam (11), the sleeve inner wall of screens pole cover (6) is the bell mouth, and the bell mouth diameter outwards diminishes gradually by pole cover fixing bolt (5) one side.
(5) After the clamping is finished, the clamping rod (4) is inserted into a positioning hole between the connecting beam (10) and the fixing beam (11).
(6) The outer diameter of the clamping rod (4) is divided into two sections, one section is a conical hole, and the other section is a conical hole;
the inside of the connecting beam (10) is a straight cylinder section, and the inside of the clamping rod sleeve (6) of the fixed beam (11) is a tapered hole.
(7) The outmost layer of the clamping rod (4) is provided with a groove, and when the clamping rod (4) is clamped in the connecting beam (10) and the fixing beam (11), hydraulic oil filled in the groove can be loosened through the groove.
According to the force-controllable double-beam clamping device, the outer wall of the clamping rod sleeve is a straight-cylinder through hole, and the inner wall of the sleeve is a tapered hole, so that the clamping rod is convenient to fix; according to the force-controllable double-beam clamping device, the outer diameter of a clamping rod is divided into two sections, one section is a straight cylinder, the other section is a conical hole, and the clamping rod is matched with a clamping rod sleeve for use, so that the clamping precision can be controlled; according to the force-controllable double-beam clamping device, the outermost layer of the clamping rod is provided with a groove, and when the clamping rod is clamped in the connecting beam and the fixed beam, the clamping rod can be loosened by filling hydraulic oil in the groove; according to the force-controllable double-beam clamping device, the clamping rod is connected with the connecting screw rod, the connecting screw rod is connected with the load sensor, the load sensor is connected with the actuator cylinder, manual perforation is not needed, the force can be achieved through the actuator cylinder, the contact force between the clamping rod and the clamping rod sleeve can be fed back through the load sensor, and the contact force between the clamping rod and the clamping rod sleeve can be effectively controlled; the force-controllable double-beam clamping device is suitable for clamps or products needing to be fixed through the positioning holes, is not limited to a beam structure, and is high in universality.
Drawings
FIG. 1 is a conventional double-beam detent device;
FIG. 2 is a force-controllable double-beam detent apparatus according to the present invention;
FIG. 3 is a view of the structure of the position-locking rod sleeve;
FIG. 4 is a view of the structure of the position lever;
FIG. 5 is a view showing the structure of a cover plate;
FIG. 6 is a view of the load cell and actuator cylinder;
fig. 7 is a view showing a structure of a connection screw.
Wherein: the device comprises a cover plate fixing bolt 1, a cover plate 2, a connecting bolt 3, a clamping rod 4, a rod sleeve fixing bolt 5, a clamping rod sleeve 6, an actuator cylinder 7, a load sensor 8, a connecting screw rod 9, a connecting beam 10 and a fixing beam 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention is further described in detail below with reference to the illustrated embodiments.
Referring to fig. 2, a force-controllable double-beam clamping device includes a cover plate fixing bolt 1, a cover plate 2, a connecting bolt 3, a clamping rod 4, a rod sleeve fixing bolt 5, a clamping rod sleeve 6, an actuator cylinder 7, a load sensor 8, a connecting screw 9, a connecting beam 10, and a fixing beam 11. Wherein screens pole cover 6 passes through pole cover fixing bolt 5 to be fixed in the locating hole of fixed beam 11, screens pole 4 passes through the internal thread at pole center and links to each other with connecting screw 9, connecting screw 9 links to each other with load sensor 8, load sensor 8 links to each other with actuator cylinder 7, when connecting beam 10 aligns with the screens hole center of fixed beam 11, force screens pole 4 to pass the screens hole of connecting beam 10 through actuator cylinder 7 push rod, subsequently get into screens pole cover 6 of fixed beam 11, confirm the contact force between screens pole 4 and the screens pole cover 6 according to the size of load sensor 8 feedback load, after the load reaches the requirement, the screens is accomplished, afterwards, dismantle load sensor 8, connecting screw 9 and actuator cylinder 7, fix apron 2 and connecting beam 10 through apron fixing bolt 1, fix apron 2 and screens pole 4 through connecting bolt 3.
In particular, the method comprises the following steps of,
the clamping rod sleeve 6 is fixed on a positioning hole of the fixed beam 11 through 9 rod sleeve fixing bolts 5 which are uniformly arranged, the outer wall of a sleeve of the clamping rod sleeve 6 is a straight-cylinder through hole and can be directly inserted into the positioning hole of the fixed beam 11, the inner wall of the sleeve of the clamping rod sleeve 6 is a tapered hole, the taper is 5 degrees, and the diameter of the inner hole is gradually reduced from one side of the rod sleeve fixing bolt 5 to the outside;
when the center of the clamping hole of the fixed beam 11 is aligned with the center of the connecting beam 10, the clamping rod 4 is forced to pass through the clamping hole of the connecting beam 10 by the push rod of the actuating cylinder 7 and then enter the clamping rod sleeve 6 of the fixed beam 11, the contact force between the clamping rod 4 and the clamping rod sleeve 6 is determined according to the feedback load of the load sensor 8, and the clamping is finished after the load meets the requirement;
the clamping rod 4 is inserted into a positioning hole between the connecting beam 10 and the fixed beam 11, the clamping rod 4 is of a cylindrical structure and is divided into two sections, a straight section is arranged in the connecting beam 10, the outer diameter of the clamping rod 4 is a straight cylinder, and then the clamping rod enters the clamping rod sleeve 6 of the fixed beam 11, the outer diameter of the clamping rod 4 is a conical hole, the taper is 5 degrees, a groove is formed in the outermost layer of the clamping rod 4, and when the clamping rod 4 is clamped in the connecting beam 10 and the fixed beam 11, hydraulic oil filled in the groove can be released;
after the clamping is finished, the load sensor 8, the connecting screw rod 9 and the actuating cylinder 7 are disassembled, and the appearance is neat and beautiful.
After the screens are accomplished, dismantle load sensor 8, connecting screw 9 and pressurized cylinder 7, fix apron 2 and tie-beam 10 through apron fixing bolt 1, fix apron 2 and screens pole 4 through connecting bolt 3, restricted the position of screens pole 4, prevent screens pole 4 lateral translation and along the rotation of axle.
Wherein the connecting bolt, the rod sleeve fixing bolt and the cover plate fixing bolt are standard parts, the material is generally 45 steel, the number of the connecting bolt, the rod sleeve fixing bolt and the cover plate fixing bolt is respectively 6, 9 and 10, and the connecting bolt, the rod sleeve fixing bolt and the cover plate fixing bolt play a role in connection and fixation,
the screens pole cover is as shown in figure 3, and the machine adds the piece, and is the main load-carrying member, and the material selects for use 30CrMnSiA usually, and the pole cover outer wall is straight section of thick bamboo through-hole, and the inner wall is the bell mouth, and the tapering is 5 degrees, and the through-hole of wearing the bolt is left to the outside, fixes in the downthehole of fixed beam, is clearance fit.
The screens pole is as shown in figure 4, machine adds the piece, for the main load spare, the material chooses for use 30CrMnSiA usually, the external diameter of screens pole is the bell mouth, the tapering is 5 degrees, the outmost of screens pole, it has the recess to open, when screens pole card is dead in tie-beam and fixed beam, the accessible is relaxed to filling hydraulic oil in the recess, in addition, screens pole opposite side leaves central screw hole, links to each other with connecting screw, the periphery has fixed screw hole, links to each other with connecting bolt, prevent screens pole position change.
The cover plate is formed by processing a steel plate, a non-main bearing part is made of Q345 steel, a through hole is reserved in the center of the cover plate, a connecting screw rod can conveniently penetrate through the through hole, a cover plate fixing bolt hole is reserved on the outer side of the cover plate, and a connecting bolt hole is reserved on the slightly inner side of the cover plate.
The load sensor and the actuator cylinder are connected as shown in fig. 6, both are matched and additionally installed equipment of a test plant, the load sensor can be selected according to requirements, the load sensor can feed back the force, and the controller judges the thrust of the actuator cylinder according to the force.
The connecting screw rod is shown in fig. 7, the machining part is a main bearing part, the material is usually 30CrMnSiA, both ends of the connecting screw rod are of threaded structures, one end of the connecting screw rod is connected with a load sensor, and the other end of the connecting screw rod is connected with a clamping rod.
The force-controllable double-beam clamping device is suitable for fixtures or products needing to be fixed through the positioning holes, is not limited to a beam structure, and is high in universality.
Installing a clamping rod sleeve in the positioning hole of the fixed beam, and fixing the clamping rod sleeve on the fixed beam by using a rod sleeve fixing bolt; connecting a load sensor to the actuating cylinder, connecting a screw rod to the other end of the load sensor, and connecting the other end of the connecting screw rod to a clamping rod; hoisting the connecting beam by using a crane of a test factory building, and fixing the connecting beam when the connecting beam positioning hole is aligned with the fixed beam positioning hole; the connected actuating cylinder, the load sensor, the connecting screw rod and the clamping rod are forked by a forklift and inserted into a positioning hole at one side of the connecting beam; the actuator cylinder base is fixed on a matched stand column of a factory building, an oil pipe and a pressurizing device are connected, and the load sensor is connected with a measurement and control computer; the control computer controls the actuator cylinder to enable the clamping rod to be slowly inserted into the fixed beam, and the contact force is judged according to the magnitude of the feedback force of the load sensor; after the clamping is completed, the actuating cylinder, the load sensor, the connecting screw rod and the matched equipment are disassembled, the cover plate is fixed on the outer side of the connecting beam through the cover plate fixing bolt, and the positions of the cover plate and the clamping rod are fixed through the connecting bolt.
The foregoing is merely a detailed description of the embodiments of the present invention, and some of the conventional techniques are not detailed. The scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. A force-controllable double-beam clamping device is characterized by comprising a clamping rod (4), a rod sleeve fixing bolt (5), a clamping rod sleeve (6), an actuating cylinder (7), a load sensor (8), a connecting screw (9), a connecting beam (10) and a fixing beam (11);
the clamping rod sleeve (6) is fixed in a positioning hole of the fixed beam (11) through a rod sleeve fixing bolt (5), the clamping rod (4) is connected with a connecting screw rod (9) through an internal thread in the center of the rod, the connecting screw rod (9) is connected with a load sensor (8), and the load sensor (8) is connected with the actuating cylinder (7).
2. A force-controlled double-beam clamping device as claimed in claim 1, characterized in that when the connecting beam (10) is aligned with the clamping hole of the fixed beam (11), the clamping rod (4) is forced to pass through the clamping hole of the connecting beam (10) by the push rod of the actuating cylinder (7) and then enter the clamping rod sleeve (6) of the fixed beam (11), the contact force between the clamping rod (4) and the clamping rod sleeve (6) is determined according to the magnitude of the load fed back by the load sensor (8), and the clamping is completed after the load is met.
3. The force-controlled double-beam detent device of claim 1, further comprising: the cover plate fixing bolt (1), the cover plate (2) and the connecting bolt (3);
after the clamping is finished, the load sensor (8), the connecting screw rod (9) and the actuator cylinder (7) are disassembled, the cover plate (2) and the connecting beam (10) are fixed through the cover plate fixing bolt (1), and the cover plate (2) and the clamping rod (4) are fixed through the connecting bolt (3).
4. A force-controlled double-beam clamping device according to claim 1, characterized in that the clamping rod sleeve (6) is fixed on the positioning hole of the fixed beam (11) by a plurality of rod sleeve fixing bolts (5) which are arranged uniformly.
5. The force-controllable double-beam clamping device as claimed in claim 1, wherein the outer wall of the sleeve of the clamping rod sleeve (6) is a straight through hole which can be directly inserted into the positioning hole of the fixed beam (11), the inner wall of the sleeve of the clamping rod sleeve (6) is a tapered hole, and the diameter of the tapered hole is gradually reduced from one side of the rod sleeve fixing bolt (5) to the outside.
6. A force-controlled double-beam clamping device according to claim 1, characterized in that after clamping is completed, the clamping rod (4) is inserted into the positioning hole between the connecting beam (10) and the fixed beam (11).
7. The force-controllable double-beam clamping device as claimed in claim 1, wherein the outer diameter of the clamping rod (4) is divided into two sections, one section is a conical hole, and the other section is a conical hole;
the inside of the connecting beam (10) is a straight cylinder section, and the inside of the clamping rod sleeve (6) of the fixed beam (11) is a tapered hole.
8. The force-controllable double-beam clamping device as claimed in claim 1, wherein the outermost layer of the clamping rod (4) is provided with a groove, and when the clamping rod (4) is clamped in the connecting beam (10) and the fixing beam (11), the clamping rod can be loosened by filling the groove with hydraulic oil.
CN201911235523.3A 2019-12-05 2019-12-05 Force-controllable double-beam clamping device Active CN110789735B (en)

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CN201911235523.3A CN110789735B (en) 2019-12-05 2019-12-05 Force-controllable double-beam clamping device

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Application Number Priority Date Filing Date Title
CN201911235523.3A CN110789735B (en) 2019-12-05 2019-12-05 Force-controllable double-beam clamping device

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CN110789735B CN110789735B (en) 2023-05-23

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH77677A (en) * 1918-01-18 1918-05-16 Basler Eisenmoebelfabrik Theod Jaw chucks
US20070067985A1 (en) * 2005-09-15 2007-03-29 Lifu Bicycle Co., Ltd. Structural improvement of chain wheel dismounting kit
EP2395160A2 (en) * 2010-06-09 2011-12-14 fischerwerke GmbH & Co. KG Device for fixing a covering to a wash basin
CN102991725A (en) * 2012-12-07 2013-03-27 中国飞机强度研究所 Pole restraint device
CN103048124A (en) * 2012-12-10 2013-04-17 中国飞机强度研究所 Pulley guide loading device
CN104155087A (en) * 2014-05-20 2014-11-19 北京航空航天大学 Fixed-wing aircraft rudder fatigue test system
CN105738085A (en) * 2014-12-10 2016-07-06 中国飞机强度研究所 Load applying method suitable for special installation space
CN107036797A (en) * 2017-05-27 2017-08-11 西南交通大学 The experimental rig of bolt looseness under a kind of measurement action of lateral load

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH77677A (en) * 1918-01-18 1918-05-16 Basler Eisenmoebelfabrik Theod Jaw chucks
US20070067985A1 (en) * 2005-09-15 2007-03-29 Lifu Bicycle Co., Ltd. Structural improvement of chain wheel dismounting kit
EP2395160A2 (en) * 2010-06-09 2011-12-14 fischerwerke GmbH & Co. KG Device for fixing a covering to a wash basin
CN102991725A (en) * 2012-12-07 2013-03-27 中国飞机强度研究所 Pole restraint device
CN103048124A (en) * 2012-12-10 2013-04-17 中国飞机强度研究所 Pulley guide loading device
CN104155087A (en) * 2014-05-20 2014-11-19 北京航空航天大学 Fixed-wing aircraft rudder fatigue test system
CN105738085A (en) * 2014-12-10 2016-07-06 中国飞机强度研究所 Load applying method suitable for special installation space
CN107036797A (en) * 2017-05-27 2017-08-11 西南交通大学 The experimental rig of bolt looseness under a kind of measurement action of lateral load

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