CN104647090A - Self-adaption absorptive clamping device of airplane skin - Google Patents
Self-adaption absorptive clamping device of airplane skin Download PDFInfo
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- CN104647090A CN104647090A CN201410743421.3A CN201410743421A CN104647090A CN 104647090 A CN104647090 A CN 104647090A CN 201410743421 A CN201410743421 A CN 201410743421A CN 104647090 A CN104647090 A CN 104647090A
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- framed bent
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- covering
- scale
- self adaptation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/088—Work-clamping means other than mechanically-actuated using vacuum means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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- Mechanical Engineering (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Abstract
The invention discloses a self-adaption absorptive clamping device of an airplane skin. The clamping device is characterized by comprising a frame, bent frames and self-adaption absorptive columns, wherein the upper and lower beams of the frame are provided with racks, and the two ends of each bent frame are arranged on the racks and can move along the racks; each bent frame is internally provided with a linear guide rail in a vertical direction, and each group of bent frames is provided with a certain amount of self-adaption adsorption columns and can move along the linear guide rail respectively; each adsorption column comprises a rotary vacuum chuck, a self-adaption telescopic link and a scale column. According to the clamping provided by the invention, the layout of the bent frames and the self-adaption absorptive columns can be adjusted by aiming at the shape of the skin, the absorption height can be adjusted by the scale columns and the self-adaption telescopic links, and the skin can be absorbed by the vacuum suckers; furthermore, the clamping device is applicable to clamping the skins of various shapes and sizes, the comprehensive cost can be reduced, the frock preparation period and production period can be shortened, and the production efficiency can be improved.
Description
Technical field
The present invention relates to fixture, especially a kind of aircraft skin clamping device, specifically a kind of aircraft skin self adaptation absorption clamping device.
Background technology
Aircraft skin forms the appearance part of Aerodynamic Configuration of Aireraft, and its size is large, kind is many, complex-shaped various and batch is little, is the strength member ensureing aircraft aerodynamics performance.In aircraft manufacturing process, need to carry out various processing to covering, because the rigidity of covering is poor, thickness is less, adds and is easily out of shape man-hour, and existing covering processing adopts multi-point flexibly absorption mounting and clamping system usually.During covering forming, certain error can be produced, existing multi-point flexibly adsorbent equipment adopts motor or hydraulic pressure accurately to control absorption position usually, adsorption site location is carried out according to theoretical shape, the existence of form error makes true form and theoretical shape not be inconsistent, and cannot adsorb covering according to the hi-Fix of theoretical shape.
Summary of the invention
The present invention is directed to prior art and according to the problem of covering forming error self-adaptative adjustment absorption position, a kind of aircraft skin self adaptation absorption clamping device cannot be designed.
Technical scheme of the present invention is:
A kind of aircraft skin self adaptation absorption clamping device, is characterized in that the upper underbeam that it comprises framework A, framed bent B and self adaptation adsorption column C, framework A is equipped with tooth bar respectively; Framed bent B is between upper underbeam, and the two ends up and down of framed bent B are engaged with corresponding tooth bar respectively, and motor is equipped with respectively in the two ends up and down of framed bent B, and two motor in synchrony motions can make framed bent move along the tooth bar on framework A, and between framed bent B, cooperative motion is avoided interfering; The length direction of framed bent B is provided with ball-screw and upright guide rail, often organize on framed bent B and several self adaptation adsorption columns are housed, each self adaptation adsorption column can move up and down along upright guide rail under the driving of ball-screw; Self adaptation adsorption column C comprises can turn to vacuum cup, self-adapting stretching bar and scale post; Described turned to vacuum cup can unload and change covering locating piece into locate covering; Whole device can according to the layout of covering Adjusting Shape self adaptation adsorption column and absorption height.
Described framework A comprises: framework upper beam 1, frame supported post 2, chassis base 3, framework underbeam 4 and tooth bar 5, and framework upper beam 1 and framework underbeam 4 are that tooth bar 5 is all housed, and the gears meshing of tooth bar 5 and framed bent B end, framed bent B can move along tooth bar direction.
Described framed bent B comprises: framed bent shell 6, protective cover 7, framed bent bonnet 8, scale hole slot 9, upright guide rail 10, ball-screw 11, travel switch 12, travelling gear 13 and motor I 14, the travelling gear 13 that framed bent shell about 6 two ends are installed engages with the tooth bar 5 on the framework upper beam 1 of framework A and framework underbeam 4 respectively, and travelling gear 13 is driven by motor I 14; Protective cover 7 is equipped with on framed bent shell 6 width both sides respectively, prevents adding the chip produced man-hour and falls into framed bent internal damage internal structure; Scale hole slot 9 is positioned on framed bent bonnet 8, and framed bent bonnet 8 is arranged on framed bent shell 6 by screw; Upright guide rail 10 is housed in framed bent shell 6 inside and ball-screw 11 vertically moves to drive self adaptation adsorption column C; Framed bent shell 6 both sides are equipped with travel switch 12 respectively, and between framed bent B or when colliding between framed bent B and framework A, travel switch triggers and makes framed bent B stop X-direction motion or change the direction of motion.
Described self adaptation adsorption column C comprises: pressure sensor 15, vacuum cup 16 can be turned to, fixture 17, Vacuum connector 18, vacuumize pore 19, motor II 20, electric pushrod 21, guide rail sleeve 22, scale post 23, fixed base plate 24, set bolt 25, motor II I26, travel switch 27, scale hole 28, pressure column 29, piston boit 30, vacuum cavity 31, sealing ring 32, guide rod 33, stopper slot 34, limited block 35, locating hole 36, spring 37, eccentric cam 38, guide rod hole 39, first pressure air cavity 40, piston boit through hole 41, piston boit groove 42, guide rod boss 43 and the second pressure air cavity 44, pressure sensor 15 is fixed by screws in and can turns on vacuum cup 16, vacuum cup 16 lower end can be turned to have external screw thread, with between fixture 15 for being threaded, fixture 17, to connect with bolt between Vacuum connector 18 and piston boit 30, electric pushrod 21 lower end motor part is bolted on pressure column 29 both sides, is connected between upper end pusher section with fixture 17, it is inner that pressure column 29 is arranged on scale post 23, limited block 35 on pressure column can move forward and backward in the stopper slot 34 of scale post 23 inside, stopper slot 34 upper end closed, lower end is open, during installation, pressure column 29 loads from scale post 23 lower end, then installs fixed base plate 24 by screw, for limiting limited block 35 extreme lower position, fixed base plate 24 has circular hole, when limited block 35 is positioned at lower position, the extended fixed base plate 24 in pressure column 29 lower end, pressure column 29 lower end has at least two locating holes 36, and scale post 23 side has at least 3 equidistant scale holes 28, and the distance between scale hole 28 is equal with the distance between locating hole 36, and the stroke of piston boit 30 is greater than the distance between scale hole 28, each scale hole 28 indicates scale to scale post 23, suitable scale hole 28 can be selected according to adsorption site Z-direction absorption position, movement pressure post 29 position, selected scale hole 28 is connected by set bolt 25 with between locating hole 36, guide rod 33 upper end has guide rod hole 39, the output shaft of motor II 20 is equipped with eccentric cam 38, and the rotation of eccentric cam 38 in guide rod hole 39 can drive the lifting of guide rod 33, vacuum cup 16 can be turned to rotate according to skin shape any direction within 45 degree of scopes, there is guide rail sleeve 22 scale post 23 side, is arranged on upright guide rail 10, motor II I26 controls self adaptation adsorption column C motion in the Y direction by transmission mechanism and ball-screw 11, when colliding between self adaptation adsorption column C, travel switch 27 triggers and makes self adaptation adsorption column C stop Y-direction moving or change moving direction.
When vacuum cup 16 can be turned to not to be stressed, spring 37 is in compressive state, motor II 20 drives eccentric cam 38 that guide rod 33 is pushed into lower position, now, it is outside that guide rod boss 43 is in piston boit groove 42, first pressure air cavity 40 is connected with the second pressure air cavity 44, and piston rod 30 is in free state, is controlled to make piston rod 30 move to extreme higher position by electric pushrod 21, when mounting and clamping system installs covering, covering is pushed to self adaptation absorption clamping device, covering can turn to vacuum cup 16 to press backward according to own profile, covering applied pressure experienced by pressure sensor 15, when the pressure experienced is greater than setting threshold value, electric pushrod 21 controls to turn to vacuum cup 16 to move backward in real time, when covering is installed to correct position, the pressure that pressure sensor 15 is experienced is less than the threshold value of setting, electric pushrod 21 quits work, controlling motor II 20 drives eccentric cam 38 to rotate, guide rod 33 is made to move to high position, guide rod boss 43 and piston boit groove 42 are closely linked, make the gas before the first pressure air cavity 40 and the second pressure air cavity 44 isolated, the position of piston boit 30 is locked, now vacuumized by vacuum pumping hole 19, vacuum cup 16 pairs of coverings can be turned to carry out absorption clamping.
Described covering locating piece comprises: retaining thread hole 45, covering locating hole 46, covering locating piece is by being connected between retaining thread hole 45 and fixture 17, covering locating piece there is covering locating hole 46, can according to the position of covering installation site adjustment framed bent B and self adaptation adsorption column C, by pin, covering locating hole 46 is connected with the fabrication hole on covering, as machining benchmark point.
Beneficial effect of the present invention is:
1, the present invention can realize the self-adaptative adjustment of absorption position according to the exact shape of covering, and absorption success rate is high.
2, the present invention realizes coarse positioning by scale post, realizes fine positioning by pressure sensor, and reduce the requirement to parts precision, cost is low.
3, vacuum cup can be turned to change covering locating piece location covering into, improve positioning precision.
4, there is auto-lock function, good rigidly, highly versatile.
Accompanying drawing explanation
fig. 1 is covering self adaptation clamping device overall schematic of the present invention.
Fig. 2 is block schematic illustration of the present invention.
In figure: 1 is framework upper beam, 2 live for frame supported, and 3 is chassis base, and 4 is framework underbeam, and 5 is tooth bar.
Fig. 3 is the structural representation of framed bent of the present invention.
In figure: 6 is framed bent shell, 7 is protective cover, and 8 is framed bent bonnet, and 9 is scale hole slot, and 10 is upright guide rail, and 11 is ball-screw, and 12 is travel switch, and 13 is travelling gear, and 14 is motor I.
Fig. 4 is the appearance schematic diagram of self adaptation adsorption column of the present invention.
In figure: 15 is pressure sensor, and 16 for can turn to vacuum cup, 17 is fixture, and 18 is Vacuum connector, and 19 for vacuumizing pore, and 20 is motor 2, and 21 is electric pushrod, and 22 is guide rail sleeve, and 23 is scale post; 24 is fixed base plate, and 25 is set bolt, and 26 is motor II I, and 27 is travel switch, and 28 is scale hole, and 29 is pressure column.
Fig. 5 is the internal structure schematic diagram of self adaptation adsorption column of the present invention.
Figure comprises: 20 is motor II, and 30 is piston boit, and 31 is vacuum cavity, 32 is sealing ring, and 33 is guide rod, and 34 is stopper slot, 35 is limited block, and 36 is locating hole, and 37 is spring, 38 is eccentric cam, and 39 is guide rod hole, and 40 is the first pressure air cavity, 41 is piston boit through hole, 42 is piston boit groove, and 43 is guide rod boss, and 44 is the second pressure air cavity.
Fig. 6 is covering locating piece schematic diagram of the present invention
In figure: 45 is screw thread locating hole, and 46 is covering locating hole.
Fig. 7 is the structural representation of fixture 17 in Fig. 3.
Fig. 8 is the structural representation of piston boit 30 in Fig. 3.
Fig. 9 is the schematic diagram that can turn to vacuum cup 16 different rotation angle.
Figure 10 is the locating hole on pressure column and the hole on scale post
and hole
fixing, piston boit is positioned at minimum stroke position view.
Figure 11 is the locating hole on pressure column and the hole on scale post
and hole
fixing, piston boit is positioned at highest line journey position view.
Figure 12 is the locating hole on pressure column and the hole on scale post
and hole
fixing, piston boit is positioned at highest line journey position view.
Figure 13 is that guide rod is in high position piston boit locking state schematic diagram.
Figure 14 is that guide rod is in lower position piston boit and is in free state schematic diagram.
specific implementation method
Below in conjunction with drawings and Examples, the present invention is done to the explanation of a step, but the invention is not restricted to this embodiment.
A kind of covering self adaptation absorption clamping device, be applicable to the clamping of the various shape of aircraft, size covering, it comprises framework A, framed bent B and self adaptation adsorption column C.As shown in Figure 1, the upper underbeam of its middle frame is equipped with tooth bar respectively; Framed bent is between upper underbeam, all being engaged by respective teeth wheel and rack up and down of framed bent, the upper and lower two ends of framed bent are equipped with driven wheel respectively and are rotated thus drive framed bent on framework as the motor I of horizontal direction movement, two motor I are synchronized with the movement and framed bent can be made to move along the tooth bar on framework, and need cooperative motion to avoid interfering between framed bent; In framed bent, ball-screw and upright guide rail are vertically housed, often organize self adaptation adsorption column framed bent being equipped with some, each self adaptation adsorption column can move up and down along upright guide rail; Self adaptation adsorption column comprises can turn to vacuum cup, self-adapting stretching bar and scale post; Turned to vacuum cup on self adaptation adsorption column unloads and can change covering locating piece into locate covering.Whole device can according to the layout of covering Adjusting Shape self adaptation adsorption column and absorption height.Framework A comprises: framework upper beam 1, and frame supported lives 2, chassis base 3, framework underbeam 4, tooth bar 5, and as shown in Figure 2, on framework, underbeam is equipped with tooth bar 5 respectively, for installing framed bent B, framed bent B can be made to move along tooth bar direction.Framed bent B comprises: framed bent shell 6, protective cover 7, framed bent bonnet 8, scale hole slot 9, upright guide rail 10, ball-screw 11, travel switch 12, travelling gear 13, motor I 14, as shown in Figure 3.Framed bent shell about 6 two ends are arranged on (Fig. 2 enlarged drawing) on tooth bar corresponding to framework A 5 respectively by the gear of both sides; Protective cover 7 is equipped with on framed bent shell 6 width both sides respectively, prevents adding the chip produced man-hour and falls into framed bent internal damage internal structure; Framed bent bonnet 8 is arranged on framed bent shell 6 by screw; Upright guide rail 10 and ball-screw are equipped with in framed bent shell 6 inside, and self adaptation adsorption column C can be made vertically to move; Framed bent shell 6 both sides are equipped with travel switch 10 respectively, and between framed bent B or when colliding between framed bent B and framework A, travel switch 12 triggers and makes framed bent B stop X-direction motion or change the direction of motion.
As shown in Figure 4,5, it comprises described self adaptation adsorption column C: pressure sensor 15, can turn to vacuum cup 16, fixture 17, and Vacuum connector 18 vacuumizes pore 19, motor 220, electric pushrod 21, guide rail sleeve 22, scale post 23; Fixed base plate 24, set bolt 25, motor 326, travel switch 27, scale hole 28, pressure column 29, piston boit 30, vacuum cavity 31, sealing ring 32 guide rod 33, stopper slot 34, limited block 35, locating hole 36, spring 37, eccentric cam 38, guide rod hole 39, the first pressure air cavity 40, piston boit through hole 41, piston boit groove 42, guide rod boss 43, second pressure air cavity 44.Pressure sensor 15 is fixed by screws in and can turns on vacuum cup 16; Vacuum cup 16 lower end can be turned to have external screw thread, with between fixture 15 for being threaded; Fixture 17, to connect with bolt between Vacuum connector 18 and piston boit 30; Electric pushrod 21 lower end motor part is bolted on pressure column 29 both sides, is connected between upper end pusher section with fixture 17; It is inner that pressure column 29 is arranged on scale post 23, limited block 35 on pressure column 29 can move forward and backward in the stopper slot 34 of scale post 23 inside, stopper slot 34 upper end closed, lower end is open, during installation, pressure column 29 loads from scale post 23 lower end, then installs fixed base plate 24 by screw, for limiting limited block 35 extreme lower position; Fixed base plate 24 has circular hole, when limited block 35 is positioned at lower position, the extended fixed base plate 24 in pressure column 29 lower end; Pressure column 29 lower end has at least two locating holes 36, and scale post 23 side has at least 3 equidistant scale holes 28, and the distance between scale hole 28 is equal with the distance between locating hole 36, and the stroke of piston boit 30 is greater than the distance between scale hole 28; Each scale hole 28 indicates scale to scale post 23, suitable scale hole 28 can be selected according to adsorption site Z-direction absorption position, movement pressure post 29 position, selected scale hole 28 is connected by set bolt 25 with between locating hole 36; Guide rod upper end has guide rod hole 39, and axle is equipped with eccentric cam 38 to motor II 20, and the rotation of eccentric cam 38 in guide rod hole 39 can drive the lifting of guide rod 33; Vacuum cup 16 can be turned to can to rotate according to skin shape any direction within 45 degree of scopes; There is guide rail sleeve 22 scale post 23 side, is arranged on upright guide rail 10; Motor II I26 controls self adaptation adsorption column C motion in the Y direction by transmission mechanism and ball-screw 11; Self adaptation adsorption column C is equipped with travel switch 27, and when colliding between self adaptation adsorption column C, travel switch 27 triggers and makes self adaptation adsorption column C stop Y-direction moving or change moving direction.
The operation principle of described self adaptation adsorption column C is: when vacuum cup 16 can be turned to not to be stressed, spring 37 is in compressive state, motor 220 drives eccentric cam 38 that guide rod 33 is pushed into lower position, now, it is outside that guide rod boss 43 is in piston boit groove 42, first pressure air cavity 40 is connected with the second pressure air cavity 44, and piston rod 30 is in free state, is controlled to make piston rod 30 move to extreme higher position by electric pushrod 21, when mounting and clamping system installs covering, covering is pushed to self adaptation absorption clamping device, covering can turn to vacuum cup 16 to press backward according to own profile, covering applied pressure experienced by pressure sensor 15, when the pressure experienced is greater than setting threshold value, electric pushrod 21 controls to turn to vacuum cup 16 to move backward in real time, when covering is installed to correct position, the pressure that pressure sensor 15 is experienced is less than the threshold value of setting, electric pushrod 21 quits work, controlling motor 220 drives eccentric cam 38 to rotate, guide rod 33 is made to move to high position, guide rod boss 43 and piston boit groove 42 are closely linked, make the gas before the first pressure air cavity 40 and the second pressure air cavity 44 isolated, the position of piston boit 30 is locked, now vacuumized by vacuum pumping hole 19, vacuum cup 16 pairs of coverings can be turned to carry out absorption clamping.
As shown in Figure 6, it comprises described covering locating piece: retaining thread hole 45, covering locating hole (46).Covering locating piece is by being connected between retaining thread hole 45 and fixture 17, covering locating piece there is covering locating hole 46, can according to the position of covering installation site adjustment framed bent B and self adaptation adsorption column C, by screw, covering locating hole 46 is connected with the fabrication hole on covering, as machining benchmark point.
Using method of the present invention is as follows:
1, according to covering geomery, the selected framed bent of needs and the quantity of self adaptation adsorption column, calculate suitable adsorption site layout.
As shown in Figure 3, framed bent B comprises: framed bent shell 6, protective cover 7, framed bent bonnet 8, scale hole slot 9, upright guide rail 10, ball-screw 11, travel switch 12, travelling gear 13, motor I 14.Framed bent shell about 6 two ends are arranged on the tooth bar 5 of framework A respectively; Protective cover 7 is equipped with on framed bent shell 6 width both sides respectively, prevents adding the chip produced man-hour and falls into framed bent internal damage internal structure; Framed bent bonnet 8 is arranged on framed bent shell 6 by screw; Upright guide rail 10 and ball-screw are equipped with in framed bent shell 6 inside, and self adaptation adsorption column C can be made vertically to move; Framed bent shell 6 both sides are equipped with travel switch 12 respectively, and between framed bent B or when colliding between framed bent B and framework A, travel switch 12 triggers and makes framed bent B stop X-direction motion or change the direction of motion.
When covering is located jointly by auricle clamping and many framed bents vacuum suction, framed bent can affect the moving area of supporting device, therefore needs to carry out Region dividing in conjunction with covering actual size, and mirror image milling, by mobile framed bent absorption location, is carried out in each region.Process ensures the distance of shoring head and framed bent, collision free.In the vacuum framed bent moving process of area transformation, at least ensure that 2 framed bents are fixed, ensure the positioning precision of part on lathe, other framed bents carry out X to adjustment according to machining area, and therefore framed bent quantity must not be less than 3.
As shown in Figure 4, Figure 5, self adaptation adsorption column C comprises: pressure sensor 15, can turn to vacuum cup 16, fixture 17, and Vacuum connector 18 vacuumizes pore 19, motor II 20, electric pushrod 21, guide rail sleeve 22, scale post 23; Fixed base plate 24, set bolt 25, motor II I26, travel switch 27, scale hole 28, pressure column 29, piston boit 30, vacuum cavity 31, sealing ring 32 guide rod 33, stopper slot 34, limited block 35, locating hole 36, spring 37, eccentric cam 38, guide rod hole 39, the first pressure air cavity 40, piston boit through hole 41, piston boit groove 42, guide rod boss 43, second pressure air cavity 44.Pressure sensor 15 is fixed by screws in and can turns on vacuum cup 16; Vacuum cup 16 lower end can be turned to have external screw thread, with between fixture 15 for being threaded; As shown in Figure 7, Figure 8, fixture 17, connect with bolt between Vacuum connector 18 and piston boit 30; Electric pushrod 21 lower end motor part is bolted on pressure column 29 both sides, is connected between upper end pusher section with fixture 17; It is inner that pressure column 29 is arranged on scale post 23, limited block 35 on pressure column can move forward and backward in the stopper slot 34 of scale post 23 inside, stopper slot 34 upper end closed, lower end is open, during installation, pressure column 29 loads from scale post 23 lower end, then installs fixed base plate 24 by screw, for limiting limited block 35 extreme lower position; Fixed base plate 24 has circular hole, when limited block 35 is positioned at lower position, the extended fixed base plate 24 in pressure column 29 lower end; Guide rod upper end has guide rod hole 39, and axle is equipped with eccentric cam 38 to motor II 20, and the rotation of eccentric cam 38 in guide rod hole 39 can drive the lifting of guide rod 33; As shown in Figure 9, vacuum cup 16 can be turned to can to rotate according to skin shape any direction within 45 degree of scopes; There is guide rail sleeve 22 scale post 23 side, is arranged on upright guide rail 10; Motor II I26 controls self adaptation adsorption column C motion in the Y direction by transmission mechanism and ball-screw 11; Self adaptation adsorption column C is equipped with travel switch 27, and when colliding between self adaptation adsorption column C, travel switch triggers and makes self adaptation adsorption column C stop Y-direction moving or change moving direction.
2, design quantity and the position of covering anchor point, the rotatable vacuum cup of relevant position is unloaded and changes covering locating piece into, covering locating hole 46 and the fabrication hole on covering are connected by screw, to locate covering.
As shown in Figure 6, covering locating piece comprises: retaining thread hole 45, covering locating hole 46.Covering locating piece is by being connected between retaining thread hole 45 and fixture 17, covering locating piece there is covering locating hole 46, can according to the position of covering installation site adjustment framed bent B and self adaptation adsorption column C, by screw, covering locating hole 46 is connected, as anchor point with the fabrication hole on covering.
3, according to covering theoretical shape, coarse positioning is carried out to each adsorption column Z-direction position.
As shown in Figure 4, Figure 5, pressure column 29 lower end of self adaptation adsorption column C has at least two locating holes 36, scale post 23 side has at least 3 equidistant scale holes 28, distance between scale hole 28 is equal with the distance between locating hole 36, and the stroke of piston boit 30 is greater than the distance between scale hole 28; Each scale hole 28 indicates scale to scale post 23.
First the Z-direction position of each adsorption site is calculated according to the theoretical shapometer of covering, corresponding scale hole 28 can be drawn, secondly all self adaptation adsorption columns are moved to scale hole slot 9 position, by scale hole slot 9, selected scale hole 28 is connected by set bolt 25 with between locating hole 36, finally more each adsorption column is moved to the placement position calculated.Be the locating hole 36 on pressure column 29 and the hole on scale post 23 as shown in figure 11
and hole
fixing, be the locating hole 36 on pressure column 29 and the hole on scale post 23 as shown in figure 12
and hole
fixing, namely by selected different scale hole 28, coarse positioning is carried out to the absorption position of each adsorption site.
4, on coarse positioning basis according to covering exact shape self-adaptative adjustment absorption position, realize accurately location absorption covering.
As shown in figure 14, when vacuum cup 16 can be turned to not to be stressed, spring 37 is in compressive state, motor II 20 drives eccentric cam 38 that guide rod 33 is pushed into lower position, now, it is outside that guide rod boss 43 is in piston boit groove 42, and the first pressure air cavity 40 is connected with the second pressure air cavity 44, piston rod 30 is in free state, is controlled to make piston rod 30 move to highest line journey position as shown in Figure 10 as shown in figure 11 by low travel position by electric pushrod 21, when mounting and clamping system installs covering, covering is pushed to self adaptation absorption clamping device, covering can turn to vacuum cup 16 to press backward according to own profile, covering applied pressure experienced by pressure sensor 15, when the pressure experienced is greater than setting threshold value, electric pushrod 21 controls to turn to vacuum cup 16 to move backward in real time, when covering is installed to correct position, the pressure that pressure sensor 15 is experienced is less than the threshold value of setting, electric pushrod 21 quits work, controlling motor II 20 drives eccentric cam 38 to rotate, guide rod 33 is made to move to high position, guide rod boss 43 and piston boit groove 42 are closely linked, make the gas before the first pressure air cavity 40 and the second pressure air cavity 44 isolated, the position of piston boit 30 is locked, as shown in figure 13, now vacuumized by vacuum pumping hole 19, vacuum cup 16 pairs of coverings can be turned to carry out absorption clamping.
5, after machining, stop vacuumizing, control motor 220 and drive eccentric cam 38 rotation to make guide rod 33 move to lower position, make piston boit 30 be in free state, as shown in figure 14.
Using method of the present invention can be summarized as:
Step one: according to covering shape and size, the quantity of design covering anchor point and position, unload the rotatable vacuum cup of relevant position and change covering locating piece into.
Step 2: according to skin shape, design adsorption site position and quantity, calculate the X-direction position of each framed bent, self adaptation adsorption column position in the Y direction, and the Z-direction absorption position of each adsorption site.
Step 3: select corresponding scale hole to carry out coarse positioning according to the Z-direction absorption position of each adsorption site, self adaptation adsorption column is moved to the position of scale hole slot, selected scale hole is connected by set bolt with between locating hole.
Step 4: control the position that each framed bent and self adaptation adsorption column move to setting, install covering, the real-time control piston post of electric pushrod moves backward.
Step 5: when covering is mounted to desired location, by the piston boit of the locked each self adaptation adsorption column of Electric Machine Control, vacuumizes and makes to turn to vacuum cup to hold aircraft skin.
Step 6: after machining, stops vacuumizing, unloads covering, then unclamps the piston boit of each self adaptation adsorption column by Electric Machine Control.
The part that the present invention does not relate to prior art that maybe can adopt same as the prior art is realized.
Claims (6)
1. an aircraft skin self adaptation absorption clamping device, it is characterized in that it comprises framework (A), framed bent (B) and self adaptation adsorption column (C), the upper underbeam of framework (A) is equipped with tooth bar respectively; Framed bent (B) is between upper underbeam, the two ends up and down of framed bent (B) are engaged with corresponding tooth bar respectively, motor is equipped with respectively in the two ends up and down of framed bent (B), and two motor in synchrony motions can make framed bent move along the tooth bar on framework (A), and between framed bent (B), cooperative motion is avoided interfering; The length direction of framed bent (B) is provided with ball-screw and upright guide rail, and often organize on framed bent (B) and several self adaptation adsorption columns are housed, each self adaptation adsorption column can move up and down along upright guide rail under the driving of ball-screw; Self adaptation adsorption column (C) comprises can turn to vacuum cup, self-adapting stretching bar and scale post; Described turned to vacuum cup can unload and change covering locating piece into locate covering; Whole device can according to the layout of covering Adjusting Shape self adaptation adsorption column and absorption height.
2. device according to claim 1, it is characterized in that described framework (A) comprising: framework upper beam (1), frame supported post (2), chassis base (3), framework underbeam (4) and tooth bar (5), framework upper beam (1) and framework underbeam (4) are that tooth bar (5) is all housed, and the gears meshing of tooth bar (5) and framed bent (B) end, framed bent (B) can move along tooth bar direction.
3. device according to claim 1, it is characterized in that described framed bent (B) comprising: framed bent shell (6), protective cover (7), framed bent bonnet (8), scale hole slot (9), upright guide rail (10), ball-screw (11), travel switch (12), travelling gear (13) and motor I (14), framed bent shell (6) the up and down travelling gear (13) installed of two ends engages with the tooth bar (5) on the framework upper beam (1) of framework (A) and framework underbeam (4) respectively, and travelling gear (13) is driven by motor I (14); Protective cover (7) is equipped with on framed bent shell (6) width both sides respectively, prevents adding the chip produced man-hour and falls into framed bent internal damage internal structure; Scale hole slot (9) is positioned on framed bent bonnet (8), and framed bent bonnet (8) is arranged on framed bent shell (6) by screw; Upright guide rail (10) is housed in framed bent shell (6) inside and ball-screw (11) vertically moves to drive self adaptation adsorption column (C); Framed bent shell (6) both sides are equipped with travel switch (12) respectively, and between framed bent (B) or when colliding between framed bent (B) and framework (A), travel switch triggers and makes framed bent (B) stop X-direction moving or change the direction of motion.
4. device according to claim 1, it is characterized in that described self adaptation adsorption column (C) comprising: pressure sensor (15), vacuum cup (16) can be turned to, fixture (17), Vacuum connector (18), vacuumize pore (19), motor II (20), electric pushrod (21), guide rail sleeve (22), scale post (23), fixed base plate (24), set bolt (25), motor II I(26), travel switch (27), scale hole (28), pressure column (29), piston boit (30), vacuum cavity (31), sealing ring (32), guide rod (33), stopper slot (34), limited block (35), locating hole (36), spring (37), eccentric cam (38), guide rod hole (39), first pressure air cavity (40), piston boit through hole (41), piston boit groove (42), guide rod boss (43) and the second pressure air cavity (44), pressure sensor (15) is fixed by screws in and can turns on vacuum cup (16), vacuum cup (16) lower end can be turned to have external screw thread, with between fixture (15) for being threaded, fixture (17), to connect with bolt between Vacuum connector (18) and piston boit (30), electric pushrod (21) lower end motor part is bolted on pressure column (29) both sides, is connected between upper end pusher section with fixture (17), it is inner that pressure column (29) is arranged on scale post (23), limited block (35) on pressure column can be movable in the stopper slot (34) that scale post (23) is inner, stopper slot (34) upper end closed, lower end is open, during installation, pressure column (29) loads from scale post (23) lower end, then installs fixed base plate (24) by screw, for limiting limited block (35) extreme lower position, (24) have circular hole to fixed base plate, when limited block (35) is positioned at lower position, and the extended fixed base plate in pressure column (29) lower end (24), pressure column (29) lower end has at least two locating holes (36), scale post (23) side has at least 3 equidistant scale holes (28), distance between scale hole (28) is equal with the distance between locating hole (36), and the stroke of piston boit (30) is greater than the distance between scale hole (28), the upper each scale hole (28) of scale post (23) indicates scale, suitable scale hole (28) can be selected according to adsorption site Z-direction absorption position, movement pressure post (29) position, is connected selected scale hole (28) by set bolt (25) with between locating hole (36), guide rod (33) upper end has guide rod hole (39), the output shaft of motor II (20) is equipped with eccentric cam (38), and the rotation of eccentric cam (38) in guide rod hole (39) can drive the lifting of guide rod (33), vacuum cup (16) can be turned to rotate according to skin shape any direction within 45 degree of scopes, there is guide rail sleeve (22) scale post (23) side, is arranged on upright guide rail (10), motor II I(26) control self adaptation adsorption column (C) motion in the Y direction by transmission mechanism and ball-screw (11), when colliding between self adaptation adsorption column (C), travel switch (27) triggers and makes self adaptation adsorption column (C) stop Y-direction moving or change moving direction.
5. device according to claim 1, when it is characterized in that turning to vacuum cup (16) not to be stressed, spring (37) is in compressive state, motor II (20) drives eccentric cam (38) that guide rod (33) is pushed into lower position, now, it is outside that guide rod boss (43) is in piston boit groove (42), first pressure air cavity (40) is connected with the second pressure air cavity (44), piston rod (30) is in free state, is controlled to make piston rod (30) move to extreme higher position by electric pushrod (21), when mounting and clamping system installs covering, covering is pushed to self adaptation absorption clamping device, covering can turn to vacuum cup (16) to press backward according to own profile, covering applied pressure experienced by pressure sensor (15), when the pressure experienced is greater than setting threshold value, electric pushrod (21) controls to turn to vacuum cup (16) to move backward in real time, when covering is installed to correct position, the pressure that pressure sensor (15) is experienced is less than the threshold value of setting, electric pushrod (21) quits work, controlling motor II (20) drives eccentric cam (38) to rotate, guide rod (33) is made to move to high position, guide rod boss (43) and piston boit groove (42) are closely linked, make the gas before the first pressure air cavity (40) and the second pressure air cavity (44) isolated, the position of piston boit (30) is locked, now vacuumized by vacuum pumping hole (19), vacuum cup (16) can be turned to carry out absorption clamping to covering.
6. device according to claim 1, it is characterized in that described covering locating piece comprises: retaining thread hole (45), covering locating hole (46), covering locating piece is by being connected between retaining thread hole (45) and fixture (17), covering locating piece there is covering locating hole (46), the position of framed bent (B) and self adaptation adsorption column (C) can be adjusted according to covering installation site, covering locating hole (46) is connected, as machining benchmark point with the fabrication hole on covering by pin.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410743421.3A CN104647090B (en) | 2014-12-08 | 2014-12-08 | Aircraft skin self adaptation absorption clamping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410743421.3A CN104647090B (en) | 2014-12-08 | 2014-12-08 | Aircraft skin self adaptation absorption clamping device |
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| Publication Number | Publication Date |
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| CN104647090A true CN104647090A (en) | 2015-05-27 |
| CN104647090B CN104647090B (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410743421.3A Active CN104647090B (en) | 2014-12-08 | 2014-12-08 | Aircraft skin self adaptation absorption clamping device |
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| CN116237795B (en) * | 2023-01-05 | 2023-09-12 | 意特利（滁州）智能数控科技有限公司 | Vacuum adsorption table top |
| CN115958318A (en) * | 2023-01-20 | 2023-04-14 | 中航西安飞机工业集团股份有限公司 | Aircraft skin chemical milling machine tool fixing device |
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