CN101797693B - Boring and reaming device for coaxial two-direction hole - Google Patents
Boring and reaming device for coaxial two-direction hole Download PDFInfo
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- CN101797693B CN101797693B CN201010156694XA CN201010156694A CN101797693B CN 101797693 B CN101797693 B CN 101797693B CN 201010156694X A CN201010156694X A CN 201010156694XA CN 201010156694 A CN201010156694 A CN 201010156694A CN 101797693 B CN101797693 B CN 101797693B
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- axle sleeve
- locating shaft
- coaxial
- boring
- pneumatic motor
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Abstract
The invention relates to a boring and reaming device for a coaxial two-direction hole. The device comprises a pneumatic motor, a feeding mechanism and a telescopic body. The invention has the advantage of simple structure, uses the concentric structure of the device body to ensure the concentricity of holes at the two sides, uses the pneumatic motor to provide rotating power to a cutter, uses the feeding device to manually control the feeding amount of the cutter, thereby ensuring the machining quality and the machining efficiency of the holes at the two sides.
Description
Technical field
The present invention relates to the aircraft manufacturing technical field, in particularly aircraft assembling being made to the automatic boring and reaming device of coaxial two-direction hole.
Background technology
Bore hole and fraising process technology are one of common technologies of aircraft assembling, and the height of drilling quality directly influences the service life of aircraft and the safety of aircraft.According to the data introduction, the automation of international advanced aviation processing, machine fraising rate is more than 50%～80%, and China's less than 5% aspect aircraft assembling drilling.Therefore, improve aircraft assembling drilling rate, have important function improving company's aircraft assembling level and efficiency of assembling.
In the manufacturing of aircraft, there is the very important coaxial aperture of some assembly relations, installation intersection point such as aircraft nose-gear, main landing gear, join by the assembling of multinomial part and to form, its coaxial aperture requires the machining accuracy height, and processing space is little, the big machinery process equipment can't enter on-the-spot processing, and the luminosity of existing manual fraising does not usually reach the drawing requirement.
Summary of the invention
The object of the present invention is to provide a kind of automatic boring and reaming device that can increase substantially coaxial two-direction hole drilling quality and drilling efficient.
A kind of boring and reaming device of coaxial two-direction hole, contain pneumatic motor, feed mechanism and telescopic body construction, it is characterized in that, described body is formed by axle sleeve with the concentric locating shaft of axle sleeve, the outside and relative positioning axle that axle sleeve is socketed in locating shaft can slide, described pneumatic motor and slowing-down structure thereof are fixed in the axle sleeve, the output axle of pneumatic motor is concentric with body axle sleeve and locating shaft, the output of pneumatic motor can external process tool, feed mechanism also is fixed on the axle sleeve, feed mechanism drives locating shaft can telescopic slide with respect to axle sleeve, and the outer end of locating shaft can external location axle sleeve and locking nut.
Usually, spacing between the processed coaxial two-direction hole is less than the maximum length of the application's boring and reaming device, when processing drilling, with a side coaxial aperture of the outer end of boring and reaming device locating shaft and the part to be processed location that is installed, utilize the working end of boring and reaming device, the output that is pneumatic motor drives the process tool rotation, utilize feed mechanism to drive cutter is processed the opposite side of part to be processed along the center axial feed coaxial aperture, process after this end, regain cutter, boring and reaming device is reverse, and the coaxial aperture of an other side is reprocessed in the outer end of locating shaft and the coaxial aperture of having processed the location that is installed.，
The invention has the advantages that simple in structure, the concentric structure of use device body guarantees the concentricity of two side holes.Utilize the rotary power of pneumatic motor, utilize the amount of feeding of feed arrangement hand-guided cutter, guarantee the crudy and the working (machining) efficiency of two side holes as cutter.
Below in conjunction with the embodiment accompanying drawing the application is described in further detail.
Description of drawings
Fig. 1 is the application's a coaxial two-direction hole boring and reaming device structural representation
Number description: 1 left hole in piece part, 2 cutters, 3 positioning sleeves, 4 axle sleeves, 5 locating shafts, 6 reduction gearing, 7 pneumatic motors, 8 air inlet switches, 9 feeding handwheels, 10 center leading screws, 11 locking nuts, 12 feather keys, 13 chutes, 14 power output shafts, 15 termination nuts, 16 right hole in piece part
The specific embodiment
Referring to accompanying drawing, the concentric telescopic slide mechanism that the body of this device is made up of axle sleeve 4 and locating shaft 5, in order to prevent relatively rotating between axle sleeve and the locating shaft, in the enforcement, on locating shaft 5, be provided with the feather key 12 of a protrusion, a chute 13 is arranged on axle sleeve 4, and feather key 12 is embedded in the chute 13, guarantees that the relative orientation between axle sleeve and the locating shaft is slided.Pneumatic motor 7 is fixed in the cavity of axle sleeve 4, the air inlet switch 8 of control pneumatic motor is fixed on the outside of axle sleeve 4, pneumatic motor slows down through reduction gearing 6 big ratios, its power output shaft 14 stretches out outside the termination of axle sleeve 4, cutter 2 can be connected on the power output shaft 14, by the rotation of air inlet switch 8 control pneumatic motors, thus the rotary cutting of drive cutter, and cutter 2 can be changed according to the needs of manufacturing procedure.
The feed mechanism of embodiment is an a kind of turbine and worm mechanism, and feed mechanism is by being spirally connected in a center leading screw and the locating shaft termination, and the center leading screw is positioned at the inner chamber of locating shaft body.As shown in the figure, the feeding handwheel 9 of turbine and worm is fixed on the sleeve 4, hand-turning feeding handwheel 9, rotate driving the center leading screw 10 that is connected with turbine and worm, center leading screw 10 is positioned at the center cavity of locating shaft, be threaded with the termination nut 15 of locating shaft, the rotation of center leading screw 10 will be by the relative slip of nut 15 promotion locating shafts 5 in termination with axle sleeve 4, the feeding of the slip band moving knife tool of axle sleeve 4.During operation, left side hole in piece part 1 and right hole in piece part 16 are a pair of coaxial two-direction holes, with locking nut 11 with locating shaft and right hole in piece part 16 positioning and fixing, utilize the corresponding coaxial left hole in piece part 1 of other end cutter processing of this device, after treating that left hole in piece part machines, locating shaft opposite direction positioning and fixing at the left hole in piece part that processes, is reprocessed corresponding right hole in piece part.What note here is that the external diameter of positioning sleeve 3 of locating shaft external end head and the internal diameter size of hole in piece part will be mated.
Coaxial aperture with undercarriage mounting bracket two bearing shells is an example, for guaranteeing the axiality requirement of two bearing shell supports, preceding working procedure is that coaxial aperture leaves amount spare time of adding, the surplus of adding the worker is 0.5mm～1mm, axis is apart from the monolateral vertical range 300mm of axes of aircraft, spacing is between 600mm, and the bearing shell outer surface is apart from inner nosepiece wall vertical range 56.5mm.Rapidoprint is ormolu surface cadmium plating, surface roughness Ra=1.6um, and internal diameter Ф 50H8, the space is narrow and small, should not operate.
This device bidirectional coaxial boring and reaming device is small and exquisite, flexible, its device external diameter is Ф 90mm to the maximum, length overall is 600mm, the work stroke is 120mm, adopts compressed air-driven, by the reduction gearing speed change, increase torsion, rotating speed is 250 rev/mins, and the amount of feeding is the every circle of handle 0.2mm～0.3mm, and acrotorque is 150NM.
During use bidirectional coaxial boring and reaming device one end is fixed in the undercarriage fixed support bearing shell, the locking positioning nut, the boring cutter of at first packing into, connect source of the gas, shake the feeding handwheel, the center leading screw stretches, carry out bore hole, monolateral cutting is 0.2mm, finish reams and is monolateral 0.05mm changing reamer, and wherein boring cutter is 3 swords, 3 anchor points.Reamer is the left-handed right swords of 6 swords.Helical angle is 8 °, and drift angle is 45 °, and the cutting angle is 26 °, treat that this end support bearing shell endoporus machines after, the endoporus that tune is carried out bearing shell in the other end support with same operation is processed.This device is easy to use, precision is high, good rigidly, safe and reliable, steady quality, increase work efficiency, alleviate labor strength.
Claims (3)
1. the boring and reaming device of a coaxial two-direction hole, contain pneumatic motor, feed mechanism and telescopic body construction, it is characterized in that, described body is formed by axle sleeve with the concentric locating shaft of axle sleeve, the outside and relative positioning axle that axle sleeve is socketed in locating shaft can slide, described pneumatic motor and slowing-down structure thereof are fixed in the axle sleeve, the output axle of pneumatic motor is concentric with body axle sleeve and locating shaft, the output of pneumatic motor can external process tool, feed mechanism also is fixed on the axle sleeve, feed mechanism drives locating shaft can telescopic slide with respect to axle sleeve, and the outer end of locating shaft can external location axle sleeve and locking nut.
2. the boring and reaming device of coaxial two-direction hole as claimed in claim 1 is characterized in that feed mechanism is an a kind of turbine and worm mechanism, and feed mechanism is by being spirally connected in a center leading screw and the locating shaft termination, and the center leading screw is positioned at the inner chamber of locating shaft body.
3. the boring and reaming device of coaxial two-direction hole as claimed in claim 1 or 2 is characterized in that locating shaft is provided with feather key, and this feather key is embedded in the chute of body axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010156694XA CN101797693B (en) | 2010-04-27 | 2010-04-27 | Boring and reaming device for coaxial two-direction hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010156694XA CN101797693B (en) | 2010-04-27 | 2010-04-27 | Boring and reaming device for coaxial two-direction hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101797693A CN101797693A (en) | 2010-08-11 |
| CN101797693B true CN101797693B (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010156694XA Active CN101797693B (en) | 2010-04-27 | 2010-04-27 | Boring and reaming device for coaxial two-direction hole |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017205795A1 (en) * | 2017-04-05 | 2018-10-11 | Siemens Aktiengesellschaft | Machining device for in-situ machining of prefabricated holes |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2229499B3 (en) * | 1973-05-18 | 1976-05-07 | Jauffres Jacques | |
| CN2125471U (en) * | 1992-04-17 | 1992-12-23 | 重庆冷冻机厂 | Composite boring device |
| CN2302077Y (en) * | 1997-10-13 | 1998-12-30 | 泸天化集团化工机械厂 | Electric boring and milling machine |
| US5960687A (en) * | 1990-08-14 | 1999-10-05 | Rohrberg; Roderick G. | High-precision cutting and boring mill |
| EP1375055A1 (en) * | 2002-06-27 | 2004-01-02 | Sir Meccanica S.r.l. | A portable boring and welding machine with gear wheels |
| CN201632837U (en) * | 2010-04-27 | 2010-11-17 | 西安飞机工业（集团）有限责任公司 | Boring and hinging device of coaxial tow-way holes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3594325B2 (en) * | 1993-10-18 | 2004-11-24 | 株式会社日平トヤマ | Combined processing equipment |
-
2010
- 2010-04-27 CN CN201010156694XA patent/CN101797693B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2229499B3 (en) * | 1973-05-18 | 1976-05-07 | Jauffres Jacques | |
| US5960687A (en) * | 1990-08-14 | 1999-10-05 | Rohrberg; Roderick G. | High-precision cutting and boring mill |
| CN2125471U (en) * | 1992-04-17 | 1992-12-23 | 重庆冷冻机厂 | Composite boring device |
| CN2302077Y (en) * | 1997-10-13 | 1998-12-30 | 泸天化集团化工机械厂 | Electric boring and milling machine |
| EP1375055A1 (en) * | 2002-06-27 | 2004-01-02 | Sir Meccanica S.r.l. | A portable boring and welding machine with gear wheels |
| CN201632837U (en) * | 2010-04-27 | 2010-11-17 | 西安飞机工业（集团）有限责任公司 | Boring and hinging device of coaxial tow-way holes |
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| Publication number | Publication date |
|---|---|
| CN101797693A (en) | 2010-08-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: XIFEI INTERNATIONAL AVIATION MANUFACTURING (TIANJIN) CO., LTD. Assignor: Xi'an Aircraft Industry Group Co., Ltd. Contract record no.: 2011120000269 Denomination of invention: Boring and reaming device for coaxial two-direction hole Granted publication date: 20110914 License type: Exclusive License Open date: 20100811 Record date: 20111114 |