CN106425493B - A kind of outer grid siding numerical control processing technology equipment - Google Patents
A kind of outer grid siding numerical control processing technology equipment Download PDFInfo
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- CN106425493B CN106425493B CN201610900508.6A CN201610900508A CN106425493B CN 106425493 B CN106425493 B CN 106425493B CN 201610900508 A CN201610900508 A CN 201610900508A CN 106425493 B CN106425493 B CN 106425493B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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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
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- Optics & Photonics (AREA)
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Abstract
A kind of outer grid siding numerical control processing technology equipment, including pressing plate (3), tension device (2), pressing device (5), the arc tire (4) with vacuum chuck；Arc tire (4) and the radian of shell siding with vacuum chuck match, it will be placed on arc tire (4) after bending curvature of the plate to be processed according to shell siding, plate to be processed after bending is compressed along the both ends of arc tire (4) generatrix direction by pressing plate (3), and in addition by tension device (2), the tangential direction of plate outer end after bending is tensed at both ends；After the completion of the outer grid of milling, plate arc changes to both ends surplus and carries out normal direction compression by both ends of the pressing device (5) to plate after bending after excision bending.
Description
Technical field
The present invention relates to numerical control processing technology equipments, and in particular to outside the important component of carrier rocket and missile armament
Technological equipment needed for grid siding is processed, i.e., outer grid siding is using equipment needed for mechanical process technique after first roll bending.
Background technique
The siding manufacture of China's active service batch production carrier rocket is mainly using the scheme of " roll bending "-" milling ".Milling is difficult to control
Remaining covering wall thickness is made, leads to that wall unevenness is even, reliability is low, rocket body weight loss effect is poor.Milling will cause a large amount of waste liquid row
It puts, causes energy waste and environmental pollution.
Certain model brevicone siding is shown in Fig. 3, the method solution mainly after first plate machinery milling by the way of brake forming at present
It has determined the uneven and milling pollution problem of grid residue covering wall thickness.In certain model brevicone is welded and to be formed using 4 90 ° of sidings
The tubular construction of diameter 3338mm.Every siding rib height is 20mm, grid residue covering wall thickness 1.5mm, welding section residue
With a thickness of 7.7mm.Because of the limitation of stress and load characteristic, brevicone siding grid is radioactivity grid.Since siding grid covers
Skin, rib difference in thickness be larger and the inconsistency of grid, and siding is caused to occur grid covering drum in bending forming process
Packet and deformation.Brevicone circularity is poor after the completion of four siding welding, makes that frame is held also to be deformed after connecting with end frame, Wu Fayu
Other sections normally connect.
Certain model brevicone siding uses the processing method of mechanical milling after first roll bending.Intrados and template gap permit after roll bending
Poor 2mm, intrados bus nonstraightness franchise 1.5mm.Siding and mould after roll bending have certain not compactness, and grid can be made surplus
Remaining skin thickness generates large error.In order to control siding residue skin thickness precision, need to make the siding and mould after roll bending
There is good compactness.The processing method of roll bending, adsorbs plate using vacuum chuck, plate two sides is that machine adds after first plate milling
Face, surface quality are with great difficulty adsorbed, and grid residue skin thickness precision can guarantee.The processing method of mechanical milling is rolled after first roll bending
The influence of curved quality, it is not easy to be adsorbed completely, easily cause skin thickness overproof.
Summary of the invention
Technology of the invention solves the problems, such as: the outer of post-processing can be first bent by overcoming the deficiencies of the prior art and provide one kind
Grid siding numerical control processing technology equipment.
Technical solution of the invention: a kind of outer grid siding numerical control processing technology equipment, including pressing plate, tension dress
It sets, pressing device, the arc tire with vacuum chuck；
Arc tire and the radian of shell siding with vacuum chuck match, by plate to be processed according to the radian of shell siding
It being placed on after bending on arc tire, plate to be processed after bending is compressed along the both ends of arc tire generatrix direction by pressing plate, and in addition two
End is tensed by the tangential direction of tension device plate outer end after bending；After the completion of the outer grid of milling, plate after excision bending
Arc changes to both ends surplus and carries out normal direction compression by both ends of the pressing device to plate after bending.
Location hole is arranged in upper and lower ends among plate to be processed, and positioning pin is arranged in arc tire corresponding position.
It is outermost point that arc tire is contacted with plate after bending that the point of contact that the tangential direction is is optimal.
Tension device includes drag hook, pin, hinge, connector, swivel nut, screw rod, spiral arm, locking nut, pin shaft, pedestal, drawing
Tight screw；
Pedestal one end is fixed on the side of arc tire, and the pedestal other end is connected by pin shaft with swivel nut, screw end head circular hole
It is inserted into spiral arm, installation locking nut on screw rod, and is spirally connected with swivel nut, screw end head attachment screw, connector one end passes through step list
To stretching screw, connector other end connects hinge, hinge is connect by pin shaft with pull hook.
Pressing device includes handle, screw rod I, nut, support arm, pin I, pin II, pedestal I；
Pedestal I includes bottom plate and two side plates, is connect by bottom plate with the side of arc tire 4, vertical direction is arranged on side plate
Slotted hole, side plate upper end be arranged semicircle orifice,
Pin hole is arranged in support arm bottom end, and support arm one end is mounted on two side plates by passing through the pin II of its pin hole
Between gap in, and can be moved up and down along the slotted hole on side plate；Pin I is installed, when pin II is positioned at oval on support arm
When the lowermost end in hole, support arm passes through the limit of pin I for entering above-mentioned semicircle orifice；The other end of support arm installs screw rod I, screw rod
Handle is installed in I outer end, and the other end installs nut, through nut compressing on curved plate.
Realize that the compression to plate after bending, the spacing of pressing plate meet 150-300mm by multiple pressing plates.
By processing circular hole and tension device cooperation at plate both ends to be processed, realize that tangential direction tenses.
The circular hole is not less than 15mm apart from plate edge, and after plate bending, except the cambered surface of arc tire.
The arc length of arc tire is 80-150mm longer than shell siding arc length.
The position setting slotted hole that pedestal is connect with arc tire makes entire tension device edge for adjusting specific installation site
Tangential direction tenses.
The advantages of the present invention over the prior art are that:
Present device improves the compactness of bending siding and arc tire, and the better machining accuracy of the two fitting more has guarantor
Card, the qualification rate of processed grid are also higher.To realize high-precision, high qualification rate, low stress outer grid siding system
It makes.
For tension device in cinching process, each group device can not while and apply equal tightening force.Positioning pin is set,
Guarantee that siding can be positioned preferably when by applied external force.
Under the collective effect of pressing plate and tension device, four sides of siding are bonded with vacuum chuck first, make sucker and wall
A confined space is formed among plate, and absorption siding is easier under the action of vacuum chuck, keeps siding fine with mould
Fitting.
Slotted hole everywhere is arranged in tension device pedestal, can make tension device up and down adjustment, to guarantee entire tension device
The tangential direction of plate outer end tenses after bending.
The drag hook of tension device can be rotated along pin, using that can rotate drag hook when tension device to tightened position, no
Drag hook can be made freely to hang down using when tension device, avoided to the clamping centering of siding and the interference of processing.
After removing arc length direction surplus, pressing device replaces tension device to compress the siding arc length direction side Liang Ge, makes sucker
With one confined space of formation among siding.
Pressing device support arm can be rotated along pin II, and pin II can be moved along the long hole on pedestal I, use pressing device
When support arm can be moved to compacted position, without using support arm can be made to be moved to long hole bottom when pressing device and freely hung down
Under, it avoids to the clamping centering of siding and the interference of processing.
Detailed description of the invention
Fig. 1 is outer grid wall panel structure schematic diagram；
Fig. 2 is Ф of embodiment of the present invention 3338mm schematic diagram of housing structure；
Fig. 3 is that plate is machined grid effect diagram；
Fig. 4 is plate schematic diagram before bending forming of the present invention；
Fig. 5 a, 5b are three-dimensional and main view before present invention equipment is cut；
Fig. 6 a, 6b are three-dimensional and main view after present invention equipment is cut；
Fig. 7 is tension device schematic diagram of the present invention；
Fig. 8 is Fig. 7 cross-sectional view；
Fig. 9 is pressing device schematic diagram of the present invention.
Specific embodiment
It is below to illustrate object with the monolithic siding that certain model internal diameter is Ф 3338mm shell, the present invention is discussed in detail.Often
A brevicone (shell) is welded by four pieces of sidings.Every piece of siding height 510mm, wall panel skin thickness 1.5mm, dimensional accuracy are
± 0.1mm, the siding rib wide dimensional accuracy of thickness 20mm muscle are ± 0.15mm, and welding section residual thickness is 7.7mm.Specific structure
See Fig. 1 and Fig. 2.
As shown in Fig. 5 a, 5b, 6a, 6b, present invention equipment includes pressing plate 3, tension device 2, pressing device 5, band vacuum suction
The arc tire 4 of disk；Specifically in the present embodiment include 28 groups of pressing plates, every 14 groups of row of each row in front and back；16 groups of tension devices or so each 8
Group；Each 2 groups of 4 groups of pressing devices or so；Positioning pin at two.The device can two pieces of height of time processing be 510mm, angle is 90 °,
Inner circle radius is the siding of R1669.Certainly, according to the actual application, the quantity for processing siding can be in principle of the invention model
Enclose interior Rational choice.
Since in plate bending forming process, there is also partial elastic deformations while plastic deformation, so removing
External force squab panel can generate certain rebound phenomenon.Since part size is larger, can also exist with actual requirement after correcting and miss
Difference.In order to be bonded siding preferably tangentially with mould, increases tension device 2 and eliminate the error as caused by bending springback.
Plate intrados bus straight line degree error is larger after bending forming, has in generatrix direction wainscot with sucker larger
Gap, and the rigidity of the siding generatrix direction after roll bending will be far longer than the rigidity of tangential direction.Rely solely on vacuum chuck
It is difficult to eliminate the gap as caused by bending forming form error difference.Front and back respectively increases by a row pressure plate 3, can make siding front and back end
Both sides are bonded with arc tire 4.
Under the action of two rows of pressing plates and left and right totally 16 groups of tension devices, four sides of siding are bonded with vacuum chuck first,
Make to form a confined space among sucker and siding, absorption siding is easier under the action of vacuum chuck, makes siding and tire
With good compactness.Milling Machining grid sink and welding section thickness in this case.
Milling Machining grid sink with after the completion of the thickness of welding section, and 90 ° of outer left and right sides surpluses are dismissed.Dismiss the left and right sides
The oblong aperture connecting after surplus with tension device 2 is dismissed simultaneously.Siding tangentially loses a constraint, so increasing four groups
Pressing device 5 acts on siding left and right sides by certain pressing force.Guarantee the patch on siding four sides and vacuum chuck
It closes, guarantees the formation of confined space among sucker and siding.
The arc radius of arc tire 4 of the invention is R1669, is matched with the arc radius R1669 of shell siding internal diameter.Arc
The central angle of the corresponding arc length of tire 4 is 94 °, and the central angle of shell arc length is 90 °.The arc length of arc tire 4 is longer than shell siding arc length
116mm。
The application method of apparatus of the present invention
(1) uniformly go surplus to a thickness of 20mm, width 1200mm, length 3500mm on plate two sides first；So
Bending forming internal diameter is R1669 afterwards, and the surplus for cutting circular arc direction guarantees that circular arc is 100 °；16 groups of slotted holes are apart from edge
Not less than 15mm, and except 94 °；
(2) siding after bending forming is placed on vacuum chuck arc tire 4；Centering part is simultaneously inserted into positioning pin at two；Starting
Vacuum chuck；Then 16 groups of tension devices are tensed respectively.
Tension device in the present invention is as shown in Figure 7,8, including drag hook 21, pin 22, hinge 23, connector 24, swivel nut 25,
Screw rod 26, spiral arm 27, locking nut 28, pin shaft 29, pedestal 210, screw 211, stretching screw 212, as shown in Figure 7.
The spiral arm 27 for rotating tension device, moves screw rod 26 to siding side along swivel nut 25, makes the drag hook 21 of tension device
It can catch on and reserve slotted hole on siding；After drag hook 21 catches on hole, rotating spiral arm 27 by the effect of torque makes screw rod 26 and swivel nut
25 screw thread generates relative motion；Screw rod 26, which is connected through a screw thread, drives stretching screw 212 to move, 26 external screw thread of screw rod and screw
The internal screw thread of 212 connections is oppositely oriented, and external screw thread is that dextrorotation internal screw thread is left-handed；Stretching screw 212 drives connector by step
24 move out, and can be freely rotated between connector 24 and screw 212, to guarantee that drag hook 21 is maintained at vertical state；Connector 24
It is connect by screw thread with hinge 23, connector 24 can drive hinge 23 to move out；Hinge 23 is connected with drag hook 21 by pin shaft 22
It connecing to tense siding, drag hook 21 can be rotated around pin shaft 22, and it is convenient not have to open drag hook 21 when tension device, make tension device
Far from siding.Left and right is divided 4-6 times simultaneously from centre to two, both ends, one group of rotation spiral arm 27 and screws tension device；Locking is located at
Locking nut 28 on screw rod 26；
Slotted hole, the height and position of adjustable entire tension device everywhere on 210 bottom surface of tension device pedestal make entire
Tension device 2 tenses in tangential direction.
In order to cooperate with above-mentioned tension device 2, as shown in figure 4, processing circular hole before being bent at left and right sides of plate, pass through the circle
Hole and the cooperation of drag hook 21 realize that tangential direction tenses.Circular hole is not less than 15mm apart from plate edge, and after plate bending, position
Except the cambered surface of arc tire 4.In order to guarantee that siding can be positioned preferably when by applied external force, to be processed flat
Location hole is arranged in upper and lower ends among plate, and positioning pin is arranged in 4 corresponding position of arc tire.
(3) front and rear row starts simultaneously at, and compresses 28 groups of pressing plates from the highest point of siding to both ends bilateral symmetry.
(4) Milling Machining grid sink and welding section thickness.
(5) left and right sides surplus is cut, while 16 director's circular holes that tension device drag hook 21 is caught on are cut together；It is cutting out
Four groups of pressing devices before the surplus of left and right are cut, as shown in figure 8, being located at the left and right sides of arc tire and in the lower section of siding and other
Device is not interfered.After cutting left and right surplus, pressing device is compressed into siding.
Pressing device 5 of the invention can use mode shown in Fig. 9, including handle 51, screw rod I 52, nut 53, support
Arm 54, pin I 55, pin II 56, pedestal I 57；
Pedestal I 57 includes bottom plate and two side plates, is connect by bottom plate with the side of arc tire 4, and vertical side is arranged on side plate
To slotted hole, side plate upper end be arranged semicircle orifice, 54 bottom end of support arm be arranged pin hole, 54 one end of support arm pass through pass through its pin
The pin II 56 of nail hole is mounted in the gap between two side plates, and can be moved up and down along the slotted hole on side plate；Support arm
Pin I 55 is installed, when pin II 56 is located at the lowermost end of slotted hole, support arm 54 passes through the pin for entering above-mentioned semicircle orifice on 54
Follow closely I 55 limits；The other end of support arm installs screw rod I 52, and handle 51 is installed in the outer end of screw rod I 52, and the other end installs nut 53,
Through nut compressing on curved plate.
(6) siding two sides surplus up and down is cut
The present invention can not only apply in the numerical control processing of grid siding outside current version, moreover, for fire such as beforehand research models
The outer grid siding numerical control processing of arrow provides important feasible scheme.
Unspecified part of the present invention belongs to common sense well known to those skilled in the art.
Claims (9)
1. a kind of outer grid siding numerical control processing technology equipment, it is characterised in that: including pressing plate (3), tension device (2), compress
Device (5), the arc tire (4) with vacuum chuck；
Arc tire (4) and the radian of outer grid siding with vacuum chuck match, by plate to be processed according to outer grid siding
It is placed on after bending curvature on arc tire (4), plate is compressed along the both ends of arc tire (4) generatrix direction by pressing plate (3) after bending, separately
By tension device (2), the tangential direction of plate outer end after bending is tensed at outer both ends；After the completion of the outer grid of milling, excision bending
Plate arc changes to both ends surplus and carries out normal direction compression by both ends of the pressing device (5) to plate after bending afterwards；
The tension device (2) includes drag hook (21), pin (22), hinge (23), connector (24), swivel nut (25), screw rod
(26), spiral arm (27), locking nut (28), pin shaft (29), pedestal (210), stretching screw (212)；
Pedestal (210) one end is fixed on the side of arc tire (4), and pedestal (210) other end passes through pin shaft (29) and swivel nut (25) phase
Connection, screw rod (26) end circular hole are inserted into spiral arm (27), installation locking nut (28) on screw rod (26), and with swivel nut (25) spiral shell
It connects, screw rod (26) end connects stretching screw (212), and connector (24) one end unidirectionally tenses stretching screw (212) by step, connects
Head (24) other end connects hinge (23), hinge (23) are connect by pin shaft (29) with pull hook (21).
2. equipment according to claim 1, it is characterised in that: location hole is arranged in upper and lower ends among plate to be processed,
In arc tire (4) corresponding position, positioning pin is set.
3. equipment according to claim 1, it is characterised in that: the tangent line point of contact of the tangential direction be arc tire (4) with it is curved
The outermost point that plate contacts after song.
4. equipment according to claim 1, it is characterised in that: pressing device (5) includes handle (51), screw rod I (52), spiral shell
Cap (53), support arm (54), pin I (55), pin II (56), pedestal I (57)；
Pedestal I (57) includes bottom plate and two side plates, is connect by bottom plate with the side of arc tire (4), and vertical side is arranged on side plate
To slotted hole, side plate upper end be arranged semicircle orifice,
Pin hole is arranged in support arm (54) bottom end, and support arm (54) one end is mounted on by passing through the pin II (56) of its pin hole
In gap between two side plates, and it can be moved up and down along the slotted hole on side plate；Pin I (55) are installed on support arm (54),
When pin II (56) is located at the lowermost end of slotted hole, support arm (54) passes through pin I (55) limit for entering above-mentioned semicircle orifice；
The other end of support arm installs screw rod I (52), and handle (51) are installed in the outer end of screw rod I (52), and the other end installs nut (53), leads to
Nut compressing is crossed upon bending on plate.
5. equipment according to claim 1, it is characterised in that: realize the pressure to plate after bending by multiple pressing plates (3)
Tightly, the spacing of pressing plate (3) meets 150-300mm.
6. equipment according to claim 1, it is characterised in that: filled by processing circular hole at plate both ends to be processed and tensing
(2) cooperation is set, realizes that tangential direction tenses.
7. equipment according to claim 6, it is characterised in that: the circular hole is not less than apart from plate edge to be processed
15mm, and after plate bending to be processed, it is located at except the cambered surface of arc tire (4).
8. equipment according to claim 1, it is characterised in that: the arc length of arc tire (4) is 80- longer than outer grid siding arc length
150mm。
9. equipment according to claim 1, it is characterised in that: the position setting that pedestal (210) is connect with arc tire (4) is oval
Hole tenses entire tension device (2) in tangential direction for adjusting specific installation site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610900508.6A CN106425493B (en) | 2016-10-14 | 2016-10-14 | A kind of outer grid siding numerical control processing technology equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610900508.6A CN106425493B (en) | 2016-10-14 | 2016-10-14 | A kind of outer grid siding numerical control processing technology equipment |
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| CN106425493A CN106425493A (en) | 2017-02-22 |
| CN106425493B true CN106425493B (en) | 2019-05-24 |
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| CN201610900508.6A Active CN106425493B (en) | 2016-10-14 | 2016-10-14 | A kind of outer grid siding numerical control processing technology equipment |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962416A (en) * | 2017-10-31 | 2018-04-27 | 首都航天机械公司 | A kind of adjustable tension device |
| CN108082531B (en) * | 2017-12-20 | 2021-04-27 | 西北工业大学 | Reconfigurable aircraft wall plate assembling device |
| CN108436156A (en) * | 2018-03-02 | 2018-08-24 | 沈阳飞机工业（集团）有限公司 | A kind of quick fixing means of Five Axis lathe covering milling |
| CN111774812B (en) * | 2020-06-12 | 2022-05-27 | 陕西飞机工业（集团）有限公司 | Skin forming and milling positioning method and device |
| CN113000683B (en) * | 2021-02-08 | 2021-12-17 | 中南大学 | Terrace die vacuum loading tool and manufacturing and forming method of outer grid wallboard |
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| CN202507074U (en) * | 2011-12-29 | 2012-10-31 | 上海航天精密机械研究所 | Vacuum clamp for large curved wall board |
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