CN104259846A - Unrestraint assembly method of plug-in type bundled bracket - Google Patents
Unrestraint assembly method of plug-in type bundled bracket Download PDFInfo
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- CN104259846A CN104259846A CN201410388068.1A CN201410388068A CN104259846A CN 104259846 A CN104259846 A CN 104259846A CN 201410388068 A CN201410388068 A CN 201410388068A CN 104259846 A CN104259846 A CN 104259846A
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- intermediate layer
- hole
- covering
- composite intermediate
- connecting hole
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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
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
- B23P21/002—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control the units stationary whilst being composed
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Abstract
The invention provides a unrestraint assembly method of a plug-in type bundled bracket. The steps of preassembly-splitting-reset-splitting-reset are performed for a composite sandwich layer consisting of a bundled bracket, a middle frame and inner and outer reinforced plates; in the process, a technological cover is used for replacing a cover; on the basis of determining a positioning hole, a drill plate is guided to finish precise reaming positioning of a connecting hole near the side of the cover; the precisely reamed connecting hole near the side of the cover serves as positioning standard to determine the positions of remainder connecting holes; and finally, the unrestraint plug-in assembly of the bundle bracket is finished. The method prevents the limitation of the operation space caused by the cover, brings convenience for the drilling of the connecting hole near the side of the cover, realizes unrestraint drilling of the connecting holes in the bundled bracket, uses the precisely reamed connecting hole near the side of the cover as standard to prevent the positioning error caused by the use of a transition fit positioning shaft pin, and guarantees precise reset of the composite sandwich layer after the splitting; and the unrestraint assembly method is provided to the plug-in type bundled bracket.
Description
Technical field
The invention belongs to aerospace field, especially relates to the nothing constraint assembly method of a kind of plug-in type binding bearing.
Background technology
In current domestic space product, binding bearing, as the heavy connection connecting core level rocket body and boost motor, has been widely used on the housings such as the one-level inter-tank section of carrier rocket.Existing binding bearing connected mode generally adopts radial bolts to connect: binding bearing is assemblied in carrier rocket hull outside, utilizes radial drilling machine to make housing radial bolts hole, and then binding bearing and housing are carried out radial direction be spirally connected under being generally frame.
What require along with carrying capacity improves constantly, and the Future Launch Rocket of new generation that China newly develops has the feature such as high-performance, large carrying capacity, and its binding bearing adopts and is connected with housing inserting mode.Its leg is inserted housing by covering opening by plug-in type binding bearing, and is connected by the parts such as its leg and middle boxes, interior reinforcement, outer reinforcement by axial connecting bolt.Meanwhile, for ensureing the reliability that binding bearing connects, binding bearing often adopts the high strength steel materials such as 30CrMnSiNi2A, and its hardness is higher, drilling processing very difficulty.
After XX-5 one-level in transition section shell starting product plug-in type binding bearing assembling process, because binding bearing axial connecting hole distance covering is excessively near, there is operating space limited, manual mode of operation can only be adopted to process, and the manual installing hole overproof of aperture drilled and reamed is more, quality conformance is not high, the hole precision that binding bearing installing hole requires is Φ 12
0 + 0.043, use the overproof rate of the aperture quality of the manual installing hole drilled and reamed to reach 30%; Meanwhile, when the bolt hole of hand drill articulation near covering 15mm place reams, reamer once can only rotate 30 °, and manual fraising schematic diagram as depicted in figs. 1 and 2.The restriction of operating space causes brill strand efficiency low, and 8 bolts hole according to having added up on binding bearing on plug count roughly 5.9 hours.In addition, the drilling and reaming of bolt hole of plug under binding bearing, can only lie in type frame platform face upward towards on drill and ream, it is lower that the efficiency that drills and reams comparatively goes up plug, bores 8 bolts hole and count roughly 9 hours.Therefore, for improving plug-in type binding bearing assembly quality and efficiency of assembling thereof, plug-in type binding bearing assembly technique being conducted in-depth research, and demonstrates the correctness of process by engineering practice, meeting connection request.
Summary of the invention
The problem that the invention will solve is to provide and a kind ofly overcomes the manual operating space restriction be subject in the pilot hole process of covering that drills and reams, and provides unconfined assembly method for plug-in type binding bearing.
For solving the problems of the technologies described above, the technical scheme that the invention adopts is: a kind of nothing constraint assembly method of plug-in type binding bearing, comprises the following steps:
S1. the rigging position bundling bearing and covering, middle boxes and interior external reinforcing plate for car is first determined, through the connecting hole that carries of binding bearing to being positioned at the external reinforcing plate for car of its leg upper surface and being positioned on the middle boxes of its leg lower surface and stiffener and drilling connecting hole, and with 3 ~ 5 construction screws through described connecting hole be spirally connected each parts formed composite intermediate layer, then, choose 2 ~ 3 connecting holes away from covering as locating hole, and use auto-feed brill to ream to the locating hole of composite intermediate layer, and leave the reaning allowance of 0.1mm;
S2. split composite intermediate layer, operation covering replaces covering in S1, again reset composite intermediate layer use the location axle pin of interference fits through the described binding of locating hole location bearing, middle boxes, interior external reinforcing plate for car and technique covering;
S3. to align with to the bushing plate of the nib one to one of pilot hole needed for composite intermediate layer corresponding locating hole use the location axle pin in S2 to be fixed on the upper surface of described composite intermediate layer, use auto-feed to bore and drilling is carried out to the composite intermediate layer near technique covering side, and finish ream to whole hole, then according to the die hole location on bushing plate, open-work is carried out to remaining connecting hole;
S4. again composite intermediate layer is split, the covering in S1 is used to replace technique covering, with the connecting hole finish reamed near covering side for benchmark, first finish ream to whole hole to its locating hole, then construction screw is used to be spirally connected composite intermediate layer through described locating hole and near the connecting hole finish reamed of covering side, use auto-feed to bore and finish ream remaining all connecting holes on composite intermediate layer, finally, use the hinged bolts that meets designing requirement to be spirally connected composite intermediate layer through all connecting holes.
Wherein, for bundling, bearing hardness is large, hand-made hole operating difficulties, quality conformance are not high, the problem of drilling process length consuming time, and in considering the composite intermediate layer that binding bearing and middle boxes, interior external reinforcing plate for car are formed, connecting hole on every layer of parts all needs coordination to be drilled into, select auto-feed brill and bushing plate with the use of, auto-feed can be met and bore Set and Positioning requirement, the requirement that binding bearing composite intermediate layer coordinates drilling can be met again.
Further, for avoiding occurring the defects such as spring cutter, drilling precision is low, tool wear is serious in drilling process, hard alloy steel material cutter is adopted to make the cutting tool of composite intermediate layer.
Further, the drilling speed that described auto-feed is bored is set to 400 ~ 600r/min, and reaning allowance is 0.1 ~ 0.3mm, and the amount of feeding is set to 0.1 ~ 0.2mm/r.
Wherein, in order to ensure the even location to each orientation of composite intermediate layer in S1, choose hole on the diagonal of required connecting hole distribution array as locating hole.
Further, described locating hole is distributed in the both sides of the center line of connecting hole distribution array.
Wherein, in order to avoid the restriction of covering to operating space in S2, use is with covering condition of equivalent thickness and the technique covering contour with middle boxes replaces covering, in order to compensate the gap being replaced covering, height due to technique covering does not exceed the plane at external reinforcing plate for car place, therefore use the process of auto-feed drill reaming can not be subject to the restriction of operating space again, improve fraising efficiency and precision.
Wherein, in order to avoid the thickness error between technique covering and covering causes connecting hole to misplace, time in S3 to residue connecting hole open-work, leave reaning allowance.
Wherein, in order to avoid the position error owing to using interference fits dog screw to cause, using the connecting hole finish reamed near covering side as benchmark, screw of constructing in S4 is spirally connected after composite intermediate layer through the connecting hole finish reamed near covering side, first described locating hole is finish reamed, then by construction screw through the locating hole finish reamed, and be spirally connected composite intermediate layer near the construction screw fit of covering side after, the more remaining all connecting holes of composite intermediate layer to be finish reamed.
The advantage that the invention has and good effect are: utilize technique covering to replace the mode of covering, avoid the restriction of the operating space caused because of covering, facilitate drilling of the connecting hole near covering side, achieve and drill connecting hole without restrictions on binding bearing, and utilize the connecting hole finish reamed near covering side as positioning datum, avoid the position error owing to using interference fits location axle pin to cause, ensure that the accurate reset after composite intermediate layer fractionation, for plug-in type binding bearing provides unconfined assembly method.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of manual fraising
Fig. 2 is the schematic top plan view of manual fraising
Fig. 3 is the cross-sectional schematic reamed in the present invention
Fig. 4 is the schematic top plan view reamed in the present invention
In figure: 1-bundlees bearing, 11-reamer, 21-covering, 22-technique covering, 3-middle boxes, 4-external reinforcing plate for car, stiffener in 5-, 6-auto-feed is bored, 7-bushing plate, 8-location axle pin
Detailed description of the invention
Elaborate below in conjunction with the specific embodiment of accompanying drawing to the invention.
The nothing constraint assembly method of this plug-in type binding bearing, to binding bearing 1 and middle boxes 2, interior external reinforcing plate for car (4,5) composite intermediate layer formed carries out pre-assembled-fractionation-reset-fractionation-reset, operation covering 22 replaces covering 21 in the process, the basis determining locating hole is introduced bushing plate 7 complete near covering 21 side connecting hole finish ream location, again with the connecting hole finish reamed near covering 21 side for positioning datum is determined to remain the position of connecting hole, finally complete binding bearing 1 without constraint grafting assembling.
For ensureing that plug-in type binding bearing assembles smoothly, meets assembling quality requirement, drilling mode changing traditional-handwork drilling mode, using auto-feed to creep into row drilling.
As shown in Figure 3, first utilize construction screw to position assembling by its rigging position binding bearing 1 and covering 21, middle boxes 3, interior stiffener 5, external reinforcing plate for car 4: through the connecting hole that carries of binding bearing 1 to being positioned at the external reinforcing plate for car 4 of its leg upper surface and being positioned on the middle boxes 3 of its leg lower surface and stiffener 4 and drilling connecting hole, and to be spirally connected each parts formation composite intermediate layer through connecting hole with 3 ~ 5 construction screws.
Then, choose 2 ~ 3 connecting holes away from covering 21 as locating hole, the locating hole using auto-feed to bore 6 pairs of composite intermediate layers reams, and leaves the reaning allowance of 0.1mm.
In order to ensure the even location to each orientation of composite intermediate layer, connecting hole distribution array as shown in Figure 4, chooses hole on the diagonal of required connecting hole distribution array as locating hole.Locating hole is distributed in the both sides of the center line of connecting hole distribution array.
Preferably, as shown in Figure 4, choose 3 connecting holes as locating hole, the diagonal that 3 locating holes are positioned at connecting hole distribution array is distributed in the both sides of connecting hole distribution array center line.
Wherein, the drilling speed of auto-feed brill 6 is set to 400 ~ 600r/min, and reaning allowance is 0.1 ~ 0.3mm, and the amount of feeding is set to 0.1 ~ 0.2mm/r.
After locating hole drilling is completed, split composite intermediate layer, take out covering 21, then utilize and compensate covering gap with covering 21 condition of equivalent thickness, the technique covering 22 contour with middle boxes, again reset composite intermediate layer use the location axle pin 8 of interference fits through the binding of locating hole location bearing 1, middle boxes 3, interior external reinforcing plate for car (4,5) and technique covering 22.Now avoid the interference of covering 21 pairs of operating spaces, used auto-feed to bore 6 and drilling is carried out to the connecting hole of the composite intermediate layer near covering 21 side, and finish ream to whole hole.Meanwhile, carry out open-work according to the die hole location on bushing plate 7 to remaining connecting hole, preferably, remaining connecting hole leaves certain reaning allowance when open-work.
Again split composite intermediate layer, take out technique covering 22, change covering 21, then the position of each parts of reset composite intermediate layer, with near the connecting hole finish reamed of covering 21 side for benchmark, use construction screw to be spirally connected composite intermediate layer through locating hole and near the connecting hole finish reamed of covering 21 side.Preferably, construction screw is first through after being spirally connected composite intermediate layer near the connecting hole finish reamed of covering 21 side, then locating hole is finish reamed, finish ream rear construction screw again through locating hole, and with the composite intermediate layer that is spirally connected near the construction screw fit of covering side, then use auto-feed to bore and 6 finish ream remaining all connecting holes on composite intermediate layer, finally, use the hinged bolts that meets designing requirement to be spirally connected composite intermediate layer through all connecting holes.
Above an embodiment of the invention has been described in detail, but described content being only the preferred embodiment of the invention, the practical range for limiting the invention can not being considered to.All equalization changes done according to the invention application range with improve, within the patent covering scope that still all should belong to the invention.
Claims (7)
1. a nothing constraint assembly method for plug-in type binding bearing, is characterized in that: comprise the following steps:
S1. the rigging position bundling bearing and covering, middle boxes and interior external reinforcing plate for car is first determined, through the connecting hole that carries of binding bearing to being positioned at the external reinforcing plate for car of its leg upper surface and being positioned on the middle boxes of its leg lower surface and stiffener and drilling connecting hole, and with 3 ~ 5 construction screws through described connecting hole be spirally connected each parts formed composite intermediate layer, then, choose 2 ~ 3 connecting holes away from covering as locating hole, and use auto-feed brill to ream to the locating hole of composite intermediate layer, and leave the reaning allowance of 0.1mm;
S2. split composite intermediate layer, operation covering replaces covering in S1, again reset composite intermediate layer use the location axle pin of interference fits through the described binding of locating hole location bearing, middle boxes, interior external reinforcing plate for car and technique covering;
S3. to align with to the bushing plate of the nib one to one of pilot hole needed for composite intermediate layer corresponding locating hole use the location axle pin in S2 to be fixed on the upper surface of described composite intermediate layer, use auto-feed to bore and drilling is carried out to the composite intermediate layer near technique covering side, and finish ream to whole hole, then according to the die hole location on bushing plate, open-work is carried out to remaining connecting hole;
S4. again composite intermediate layer is split, the covering in S1 is used to replace technique covering, with the connecting hole finish reamed near covering side for benchmark, first finish ream to whole hole to its locating hole, then construction screw is used to be spirally connected composite intermediate layer through described locating hole and the connecting hole that finish reams near covering side, use auto-feed to bore and finish ream remaining all connecting holes on composite intermediate layer, finally, use the hinged bolts that meets designing requirement to be spirally connected composite intermediate layer through all connecting holes.
2. plug-in type according to claim 1 binding bearing without constraint assembly method, it is characterized in that: choose hole on the diagonal of required connecting hole distribution array as locating hole.
3. the nothing constraint assembly method of plug-in type binding bearing according to claim 2, is characterized in that: described locating hole is distributed in the both sides of the center line of connecting hole distribution array.
4. plug-in type according to claim 1 binding bearing without constraint assembly method, it is characterized in that: choose 3 connecting holes as locating hole, the diagonal that 3 locating holes are positioned at connecting hole distribution array be distributed in the both sides of described distribution array center line.
5. the nothing constraint assembly method of plug-in type binding bearing according to claim 1, is characterized in that: leave reaning allowance to during residue connecting hole open-work in S3.
6. the nothing constraint assembly method of plug-in type binding bearing according to claim 1, is characterized in that: the drilling speed that described auto-feed is bored is set to 400 ~ 600r/min, and reaning allowance is 0.1 ~ 0.3mm, and the amount of feeding is set to 0.1 ~ 0.2mm/r.
7. the nothing constraint assembly method of plug-in type binding bearing according to claim 1, it is characterized in that: screw of constructing in S4 is spirally connected after composite intermediate layer through the connecting hole finish reamed near covering side, described locating hole is finish reamed, construction screw is through the locating hole finish reamed, and be spirally connected composite intermediate layer near the construction screw fit of covering side after, the remaining all connecting holes of composite intermediate layer are finish reamed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410388068.1A CN104259846B (en) | 2014-08-07 | 2014-08-07 | A kind of nothing constraint assembly method of plug-in type binding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410388068.1A CN104259846B (en) | 2014-08-07 | 2014-08-07 | A kind of nothing constraint assembly method of plug-in type binding bearing |
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| Publication Number | Publication Date |
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| CN104259846A true CN104259846A (en) | 2015-01-07 |
| CN104259846B CN104259846B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410388068.1A Active CN104259846B (en) | 2014-08-07 | 2014-08-07 | A kind of nothing constraint assembly method of plug-in type binding bearing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106777613A (en) * | 2016-12-05 | 2017-05-31 | 大连理工大学 | A kind of light titanium alloy rapid shaping carrier rocket of optimization bundlees the preparation method of bearing |
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| JPH06320361A (en) * | 1992-05-21 | 1994-11-22 | Honda Motor Co Ltd | Assembly method for locker arm |
| CN202388219U (en) * | 2011-12-15 | 2012-08-22 | 中国北车集团大连机车车辆有限公司 | Tool for assembling piston, connecting rod and piston pin |
| CN103302468A (en) * | 2013-05-24 | 2013-09-18 | 天津钢铁集团有限公司 | Disassembling and assembling method for C-shaped hook assembly of wire rod suspending and conveying device |
| CN103386600A (en) * | 2013-07-22 | 2013-11-13 | 山东太古飞机工程有限公司 | Boeing aircraft airtight support plate nut installation process device and process |
| CN103455646A (en) * | 2012-05-31 | 2013-12-18 | 北京宇航系统工程研究所 | Main binding connection structure dynamic simulation method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1031863A1 (en) * | 1982-01-28 | 1983-07-30 | Северный научно-исследовательский институт промышленности | Arrangement for launching bundles of timber |
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2014
- 2014-08-07 CN CN201410388068.1A patent/CN104259846B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06320361A (en) * | 1992-05-21 | 1994-11-22 | Honda Motor Co Ltd | Assembly method for locker arm |
| CN202388219U (en) * | 2011-12-15 | 2012-08-22 | 中国北车集团大连机车车辆有限公司 | Tool for assembling piston, connecting rod and piston pin |
| CN103455646A (en) * | 2012-05-31 | 2013-12-18 | 北京宇航系统工程研究所 | Main binding connection structure dynamic simulation method |
| CN103302468A (en) * | 2013-05-24 | 2013-09-18 | 天津钢铁集团有限公司 | Disassembling and assembling method for C-shaped hook assembly of wire rod suspending and conveying device |
| CN103386600A (en) * | 2013-07-22 | 2013-11-13 | 山东太古飞机工程有限公司 | Boeing aircraft airtight support plate nut installation process device and process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106777613A (en) * | 2016-12-05 | 2017-05-31 | 大连理工大学 | A kind of light titanium alloy rapid shaping carrier rocket of optimization bundlees the preparation method of bearing |
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| CN104259846B (en) | 2016-08-24 |
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