CN111438545A - Machining and repairing tool for eccentric positioning hole of special-shaped inserting part and using method - Google Patents
Machining and repairing tool for eccentric positioning hole of special-shaped inserting part and using method Download PDFInfo
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- CN111438545A CN111438545A CN202010412100.0A CN202010412100A CN111438545A CN 111438545 A CN111438545 A CN 111438545A CN 202010412100 A CN202010412100 A CN 202010412100A CN 111438545 A CN111438545 A CN 111438545A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003754 machining Methods 0.000 title claims description 9
- 238000005553 drilling Methods 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 8
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 7
- 210000001503 joint Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D75/00—Reaming machines or reaming devices
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Abstract
The invention provides a processing and repairing tool for eccentric positioning holes of special-shaped inserting parts and a using method, and belongs to the field of mechanical manufacturing. The processing and repairing tool comprises an adjusting pull rod, an adjusting spring, a bottom hole bushing base, a bottom hole circular bushing, an upper hole circular bushing, a stop pin, an assembly base, a drill bit protecting support, a bearing, a return spring and an upper hole bushing base. The processing and repairing tool for the eccentric positioning hole of the special-shaped inserting part is novel in structure and high in matching precision, can be suitable for installation of the special-shaped inserting part in various narrow operation spaces, and solves the difficult problems that the labor intensity is high, the operation difficulty is high, the working efficiency is low and the like when the positioning hole of the special-shaped part is drilled and repaired.
Description
Technical Field
The invention belongs to the field of mechanical manufacturing and machining, and relates to precise butt joint of some irregular special-shaped inserting parts on an airplane, which is used for solving the installation problems of the two parts such as the non-coaxial circle centers of three connecting positioning holes and the like caused by the manufacturing and assembling errors of the parts after the butt joint of the special-shaped inserting parts is drilled and repaired, in particular to the repair of the positioning holes of the parts which are particularly troublesome to disassemble on the airplane, the effect is particularly obvious, the working efficiency is high, and the machining precision is particularly high.
Background
In the process of airplane assembly, most parts are well installed on the ground in a matching way, and then are installed on an airplane main body frame structure according to corresponding positions in riveting and screwing ways, but in the screwing process, because part of parts are special-shaped inserting type parts, when the parts are installed in the matching way on the ground, the coaxiality of the circle centers of the connecting positioning holes of the parts and other parts cannot be accurately ensured, so that the circle center positions of the positioning holes are difficult to accurately determine, long-time comparison and multiple pre-installation are needed, the construction period is long, and the working difficulty is very high. At present, one conventional working method is to pre-mount the parts which are more convenient to disassemble, then to re-correct the positions of the mounting positioning holes by using a measuring tool, to disassemble the parts, to repair the positioning holes of the parts one by one on the ground, and then to install the parts, if the centers of the positioning holes are not coaxial, the repair work needs to be repeated, so that the working efficiency is extremely low, the requirement on the skill level of an operator is particularly high, and on the contrary, the parts can be repaired for many times, so that the sizes of the parts are out of tolerance and finally the parts are scrapped. Another kind is to dismantling the more troublesome part after the preinstallation, need to carry on drilling and reaming work on the machine, this just needs to select the bush mould that corresponds the locating hole internal diameter size to support for the people and install in the front and back both sides of plug-in components datum hole, then drive drill bit or reamer with the pneumatic drill, carry on drilling or reaming to the part in the difference through the guide hole around the mould, but because the pneumatic drill is the manual holding of people, its rocking volume is very big, so also be very high to drilling personnel's technical merit, and need not fix a matter of schedule change the wearing and tearing bush grinding apparatus, otherwise difficult to guarantee the size precision and the centre of a circle axiality of locating hole.
In view of the reasons, the processing and repairing tool for the eccentric positioning hole of the special-shaped inserting part is novel in structure and high in matching precision, can be suitable for installation of the special-shaped inserting part in various narrow operation spaces, and solves the difficult problems of high labor intensity, high operation difficulty, low working efficiency and the like caused by drilling and repairing of the positioning hole of the special-shaped part.
Disclosure of Invention
The invention aims to provide a novel processing and repairing tool for eccentric positioning holes of special-shaped plug-in type parts, which can adapt to narrow and special working space, completes drilling and repairing work of the eccentric holes after the butt joint of the special-shaped plug-in type parts on a machine at one time, and strictly ensures the coaxiality of the circle centers of the connecting positioning holes of the parts and the size precision of the connecting positioning holes after drilling or reaming.
The technical scheme of the invention is as follows:
the processing and repairing tool for the eccentric positioning hole of the special-shaped inserting part comprises an adjusting pull rod 1, an adjusting spring 2, a bottom hole bushing base 3, a bottom hole circular bushing 4, an upper hole circular bushing 5, a stop pin 6, an assembly base 7, a drill bit protecting support 8, a bearing 9, a reset spring 10 and an upper hole bushing base 11.
The assembly base 7 is made of steel materials and is used for providing an overall connecting structure framework for the drill bit protecting support 8, the bearing 9, the return spring 10 and the upper hole bushing base 11; the drill bit protective support 8 is made of steel materials, one end of the drill bit protective support is of a funnel structure and used for preventing a chuck of the pneumatic drill from shaking in the moving process so as to avoid the influence on the precision of a machined hole due to the shaking of the drill bit and a reamer, and the other end of the drill bit protective support is connected with a bearing 9 embedded in the assembly base 7; the inner hole of the bearing 9 is in clearance fit with the drill bit and the reamer handle, so that the shaking of a chuck of the pneumatic drill can be further reduced, and the shaking of the drill bit and the reamer can be further reduced; the upper hole bushing base 11 is made of steel, one end of the upper hole bushing base is matched with the assembly base 7 and can slide in a cavity on one side of the assembly base 7, a return spring 10 is arranged in the cavity formed by the upper hole bushing base 11 and the assembly base 7, and the return spring 10 is used for realizing automatic tool withdrawal and reset of the upper hole bushing base 11 after drilling is finished; the stop pin 6 is made of steel materials, is arranged on the outer wall of the cavity of the assembly base 7, is matched with the boss on the upper hole bushing base 11, and is used for limiting the upper hole bushing base 11 in the cavity movement process of the assembly base 7; the other end of the upper hole bushing base 11 is connected with the upper hole circular bushing 5 and used for providing a universal mounting base for the upper hole circular bushings 5 with different sizes and improving the universality of the tool. The upper hole circular bush 5 is alloy steel, and according to the requirements of the upper hole diameter of the part A and the drilling and reaming hole inner diameters of the part B, the upper hole circular bushes 5 with different sizes are selected to play a role of guiding the hole diameter when a drill bit or a reamer just drills the part B, so that the coaxiality of the circle centers of the upper hole of the part A and the positioning hole of the part B is further ensured; the bottom hole circular bush 4 is alloy steel, and the bottom hole circular bush 4 with different sizes is selected according to the requirements of the bottom hole diameter of the part A and the drilling and reaming hole inner diameters of the part B, so that the back guide effect of the hole diameter is achieved when a drill bit or a reamer just drills through the part B, and the coaxiality of the circle centers of the upper hole, the bottom hole and the positioning hole of the part B of the part A is further ensured; one end of the bottom hole circular bush 4 is connected with the bottom hole bush base 3; the bottom hole bushing base 3 is made of steel materials and is used for providing a universal base for bottom hole circular bushings 4 with different sizes; the adjusting pull rod 1 and the adjusting spring 2 are respectively provided with two, one end of the adjusting spring 2 is connected with the adjusting pull rod 1, and the other end of the adjusting spring is connected with the bottom hole bushing base 3. On one hand, after the whole machining and repairing tool is installed, the adjusting spring 2 is extended by adjusting the two symmetrical adjusting pull rods 1, and the bottom hole bushing base 3 is ensured to be tightly fixed on the end face of the outer side of the bottom hole circular bushing 4; on the other hand, through adjusting pull rod 1 and adjusting spring 2 cooperation, make the tight location of the round bush 4 in bottom hole at the bottom hole of part A, improved the stability of machining precision and frock.
The use method of the tool for machining and repairing the eccentric positioning hole of the special-shaped inserting part comprises the following steps:
(1) according to the requirements of the size of a drilled hole or a reamed hole, selecting a drill bit or a reamer with a specified size to clamp on a drill chuck of an air drill;
(2) correctly butting two parts to be butted and installed, and fixing the positions of the two parts by using furniture;
(3) selecting a bottom hole circular bushing 4 and an upper hole circular bushing 5 which meet the size requirement, and respectively installing the two on a bottom hole bushing base 3 and an upper hole bushing base 11 in a threaded connection mode;
(4) the adjusting pull rod 1 is adjusted to change the length of the adjusting spring 2, and then the bottom hole circular bush 4 and the upper hole circular bush 5 are installed at two ends of two positioning holes of the part A and are tightly pressed.
(5) Adjusting the adjusting pull rod 1 again to enable the adjusting pull rod to stretch the adjusting spring 2, and ensuring that the bottom hole circular bushing 4 and the upper hole circular bushing 5 are tightly fixed at two ends of the two positioning holes of the part A;
(6) sequentially passing a selected drill bit or reamer through a drill bit protection support 8, a bearing 9, an assembly base 7, an upper hole bushing base 11 and an upper hole circular bushing 5, starting a pneumatic drill to drill or ream a part B until the drill bit or reamer drills out from a bottom hole bushing base 3, and slowly withdrawing the drill bit or reamer at a constant speed along with the action of the reaction force of a return spring 10;
(7) and taking the air drill with the drill bit or the reamer out of the tool, then adjusting the adjusting pull rod 1 to extend the adjusting spring 2, and detaching the tool from two positioning holes of the part A, namely completing the drilling and repairing work of the special-shaped inserting part matched with the eccentric hole.
The invention has the beneficial effects that:
(1) the special-shaped inserting part disclosed by the invention is novel in mechanical structure and precise in matching, and the difficult problems that after some special-shaped inserting parts on an airplane are matched, the circle centers of a plurality of positioning holes are not coaxial, the coaxiality of the circle centers of secondary machining on the airplane is difficult to guarantee and the like are solved greatly.
(2) Because this frock adopts adjusting pull rod 1 and adjusting spring 2 as straining device, make the tight centre gripping of downthehole circular bush 4 in whole course of working and last hole circular bush 5 in two locating holes of part A, whole operation process is by the clamping of this frock once, need not the supplementary centre gripping of artificial external force, compare with manual fit drilling and reaming processing mode in the past, lightened working strength, improved work efficiency, human error falls to zero, drilling and reaming precision have strictly been guaranteed.
(3) Because the circular bush 4 of bottom hole and the circular bush 5 of last hole that this frock adopted are detachable, consequently can be according to part A and the not unidimensional requirement of part B locating hole, select the circular bush 4 of bottom hole and the circular bush 5 of last hole of not unidimensional, change simple very much, nimble degree is high, and the process range is wide, because of the two adopts threaded connection mode again, has also improved the stability of whole frock in the course of working invisibly.
(4) Another bright spot of this frock just lies in drill bit protection support 8 and bearing 9, and special structural design reduces the wind and bores the rotation process from the source and produces the shaking momentum of drill bit or reamer because of the effect of centrifugal force, further guarantees the size precision of processing hole.
(5) In the invention, the assembly base 7 and the upper hole bush base 11 are in clearance fit with delta S being less than or equal to 0.02mm, and form a feeding and retracting processing auxiliary device with damping characteristics together with the return spring 10, so that the phenomenon of cutter rotation blockage caused by overlarge feeding amount is prevented, and the surface quality of an inner hole after part processing is ensured by uniform feeding and retracting.
Drawings
Fig. 1 is a schematic structural diagram of a processing and repairing tool for eccentric positioning holes of special-shaped plug-in type parts.
In the figure: 1, adjusting a pull rod; 2 adjusting the spring; 3 bottom hole bush base; 4, a bottom hole circular lining; 5, an upper hole circular lining; 6 stop pin; 7 assembly base; 8, a drill bit protective support; 9 bearing; 10 a return spring; 11 the upper hole is lined with a base.
Detailed Description
The tool mainly comprises an adjusting pull rod 1, an adjusting spring 2, a bottom hole bushing base 3, a bottom hole circular bushing 4, an upper hole circular bushing 5, a stop pin 6, an assembly base 7, a drill bit protecting support 8, a bearing 9, a return spring 10 and an upper hole bushing base 11, and the structures of all parts are shown in figure 1. The tool comprises a bottom hole circular lining 4, a bottom hole lining base 3, a bottom hole lining base 1, a regulating pull rod 1, a regulating spring 2, a regulating spring, a regulating pull rod, a regulating spring, a regulating pull rod, a regulating spring, a; the bottom hole bushing base 3 is made of high-hardness steel materials, mainly provides a universal base for bottom hole circular bushings 4 with different sizes, and is matched with the adjusting pull rod 1 and the adjusting spring 2, so that the bottom hole circular bushing 4 is tightly positioned in the bottom hole of the part A, and the processing precision and the stability of the tool are improved; the bottom hole circular bush 4 is made of high-hardness alloy steel, and the bottom hole circular bush 4 with different sizes is selected according to the drilling requirement and the reaming requirement of the bottom hole diameter of the part B of the part A, and is mainly used for playing a role in back guiding the hole diameter when a drill bit or a reamer just drills through the part B, so that the coaxiality of the circle centers of the hole on the part A, the bottom hole and the positioning hole of the part B is further ensured; the upper hole circular bush 5 is made of high-hardness alloy steel, and the upper hole circular bushes 5 with different sizes are selected according to the drilling and reaming hole inner diameter requirements of the part B with the upper hole diameter of the part A, and are mainly used for playing a role of guiding the hole diameter when a drill bit or a reamer just drills the part B, and further ensuring the coaxiality of the circle centers of the upper hole of the part A and the positioning hole of the part B; the stop pin 6 is made of steel materials and mainly plays a role in limiting the upper hole bushing base 11 and the assembly base 7 in the movement process; the assembly base 7 is made of high-hardness steel materials and mainly provides an overall connecting structure frame for the drill bit protecting support 8, the bearing 9, the return spring 10 and the upper hole bushing base 11; the drill bit protective support 8 is made of steel materials and mainly prevents a chuck of the pneumatic drill from shaking in the moving process, so that the drill bit and the reamer are shaken, and the precision of a machined hole is further influenced; the inner hole of the bearing 9 is in clearance fit with the drill bit and the reamer handle, so that the shaking of the drill bit and the reamer caused by the shaking of a chuck of the pneumatic drill can be further reduced; the reset spring 10 is mainly used for completing the automatic tool withdrawal reset work after the drilling processing is finished; the upper hole bushing base 11 is made of high-hardness steel materials, a universal mounting base is mainly provided for the upper hole circular bushings 5 with different sizes, and the universality of the tool is improved.
The specific implementation mode and the steps of the invention are as follows:
(1) according to the requirements of the size of a drilled hole or a reamed hole, selecting a drill bit or a reamer with a specified size to clamp on a drill chuck of an air drill;
(2) correctly butting two parts to be butted and installed, and fixing the positions of the two parts by using furniture;
(3) selecting a bottom hole circular bushing 4 and an upper hole circular bushing 5 which meet the size requirement, and respectively installing the two on a bottom hole bushing base 3 and an upper hole bushing base 11 in a threaded connection mode;
(4) the adjusting pull rod 1 is adjusted to change the length of the adjusting spring 2, and then the bottom hole circular bush 4 and the upper hole circular bush 5 are installed at two ends of two positioning holes of the part A and are tightly pressed.
(5) Adjusting the adjusting pull rod 1 again to enable the adjusting pull rod to stretch the adjusting spring 2, and ensuring that the bottom hole circular bushing 4 and the upper hole circular bushing 5 are tightly fixed at two ends of the two positioning holes of the part A;
(6) sequentially passing a selected drill bit or reamer through a drill bit protection support 8, a bearing 9, an assembly base 7, an upper hole bushing base 11 and an upper hole circular bushing 5, starting a pneumatic drill to drill or ream a part B until the drill bit or reamer drills out from a bottom hole bushing base 3, and slowly withdrawing the drill bit or reamer at a constant speed along with the action of the reaction force of a return spring 10;
(7) and taking the air drill with the drill bit or the reamer out of the tool, then adjusting the adjusting pull rod 1 to extend the adjusting spring 2, and detaching the tool from two positioning holes of the part A, namely completing the drilling and repairing work of the special-shaped inserting part matched with the eccentric hole.
Claims (2)
1. The processing and repairing tool for the eccentric positioning hole of the special-shaped inserting part is characterized by comprising an adjusting pull rod (1), an adjusting spring (2), a bottom hole bushing base (3), a bottom hole circular bushing (4), an upper hole circular bushing (5), a stop pin (6), an assembly base (7), a drill bit protection support (8), a bearing (9), a reset spring (10) and an upper hole bushing base (11);
the assembly base (7) is made of steel materials and is used for providing an overall connecting structure frame for the drill bit protecting support (8), the bearing (9), the return spring (10) and the upper hole bushing base (11); the drill bit protective support (8) is made of steel materials, one end of the drill bit protective support is of a funnel structure, and the other end of the drill bit protective support is connected with a bearing (9) embedded in the assembly base (7); the inner hole of the bearing (9) is in clearance fit with the drill bit and the reamer shank; the upper hole bushing base (11) is made of steel materials, one end of the upper hole bushing base is matched with the assembly base (7) and can slide in a cavity on one side of the assembly base (7), a return spring (10) is arranged in the cavity formed by the upper hole bushing base (11) and the assembly base (7), and the return spring (10) is used for realizing automatic tool withdrawal and reset of the upper hole bushing base (11) after drilling is finished; the stop pin (6) is made of steel materials, is arranged on the outer wall of the cavity of the assembly base (7), is matched with the boss on the upper hole bushing base (11), and is used for limiting the upper hole bushing base (11) in the cavity movement process of the assembly base (7); the other end of the upper hole bushing base (11) is connected with the upper hole circular bushing (5) and is used for providing a universal mounting base for the upper hole circular bushings (5) with different sizes, and the universality of the tool is improved; the upper hole circular bushings (5) are made of alloy steel, and the upper hole circular bushings (5) with different sizes are selected according to the requirements of the upper hole diameter of the part A and the drilling and reaming hole inner diameters of the part B, so that when a drill bit or a reamer just drills the part B, a pilot effect of the hole diameter is achieved, and the coaxiality of the circle centers of the upper hole of the part A and the positioning hole of the part B is further ensured; the circular bush (4) of the bottom hole is alloy steel, and according to the diameter of the bottom hole of the part A and the requirements of drilling and reaming hole inner diameters of the part B, the circular bush (4) of the bottom hole with different sizes is selected to play a role in back guiding of the hole diameter when a drill bit or a reamer just drills through the part B, so that the coaxiality of the circle centers of the hole on the part A, the bottom hole and the positioning hole of the part B is further ensured; one end of the bottom hole circular bushing (4) is connected with the bottom hole bushing base (3); the bottom hole bushing base (3) is made of steel materials and is used for providing a universal base for bottom hole circular bushings (4) with different sizes; the adjustable pull rod (1) and the adjustable spring (2) are respectively provided with two parts, one end of the adjustable spring (2) is connected with the adjustable pull rod (1), and the other end is connected with the bottom hole lining base (3).
2. The use method of the tool for machining and repairing the eccentric positioning hole of the special-shaped inserting part is characterized by comprising the following steps of:
(1) according to the requirements of the size of a drilled hole or a reamed hole, selecting a drill bit or a reamer with a specified size to clamp on a drill chuck of an air drill;
(2) correctly butting two parts to be butted and installed, and fixing the positions of the two parts by using furniture;
(3) selecting a bottom hole circular bushing (4) and an upper hole circular bushing (5) which meet the size requirement, and respectively installing the two on a bottom hole bushing base (3) and an upper hole bushing base (11) in a threaded connection mode;
(4) adjusting the adjusting pull rod (1) to change the length of the adjusting spring (2), and then installing and pressing a bottom hole circular bushing (4) and an upper hole circular bushing (5) at two ends of two positioning holes of the part A;
(5) adjusting the adjusting pull rod (1) again to enable the adjusting pull rod to stretch the adjusting spring (2) and ensure that the bottom hole circular bushing (4) and the upper hole circular bushing (5) are tightly fixed at two ends of the two positioning holes of the part A;
(6) sequentially passing a selected drill bit or reamer through a drill bit protection support (8), a bearing (9), an assembly base (7), an upper hole bushing base (11) and an upper hole circular bushing (5), starting a pneumatic drill to drill or ream a part B until the drill bit or reamer drills out from a bottom hole bushing base (3), and slowly withdrawing the drill bit or reamer at a constant speed along with the action of the reaction force of a return spring (10);
(7) and taking the air drill with the drill bit or the reamer out of the tool, then adjusting the adjusting pull rod (1) to extend the adjusting spring (2), and detaching the tool from the two positioning holes of the part A, namely completing the drilling and repairing work of the special-shaped inserting part matched with the eccentric hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010412100.0A CN111438545A (en) | 2020-05-15 | 2020-05-15 | Machining and repairing tool for eccentric positioning hole of special-shaped inserting part and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010412100.0A CN111438545A (en) | 2020-05-15 | 2020-05-15 | Machining and repairing tool for eccentric positioning hole of special-shaped inserting part and using method |
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| Publication Number | Publication Date |
|---|---|
| CN111438545A true CN111438545A (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010412100.0A Pending CN111438545A (en) | 2020-05-15 | 2020-05-15 | Machining and repairing tool for eccentric positioning hole of special-shaped inserting part and using method |
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| CN (1) | CN111438545A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025204A (en) * | 2020-08-31 | 2020-12-04 | 河南柴油机重工有限责任公司 | Method for repairing embedded back hinge of ejector rod hole of machine body |
| CN112629465A (en) * | 2020-12-07 | 2021-04-09 | 北京星航机电装备有限公司 | Special-shaped profile detection assembly tool |
| CN113399697A (en) * | 2021-07-08 | 2021-09-17 | 中车太原机车车辆有限公司 | Detection and repair method for ejector rod clamping stagnation of railway vehicle relief valve |
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| RU2183545C2 (en) * | 2000-04-25 | 2002-06-20 | Акционерное общество "АвтоВАЗ" | Additional adjustable support |
| US20050135890A1 (en) * | 2003-12-23 | 2005-06-23 | Lynn Bauman | Bit holding apparatus for use with a power tool |
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| CN103084784A (en) * | 2013-01-28 | 2013-05-08 | 中国人民解放军第五七二一工厂 | Reassembly component multi-hole assembling precise off-location hole processing method |
| CN105562765A (en) * | 2016-03-04 | 2016-05-11 | 山东太古飞机工程有限公司 | Fastener hole centering drilling device for seat guide rail in lower pound column area of passenger-to-cargo airplane |
| CN212398829U (en) * | 2020-05-15 | 2021-01-26 | 沈阳飞机工业（集团）有限公司 | Frock is restoreed in processing of eccentric locating hole of dysmorphism grafting class part |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4461603A (en) * | 1982-03-19 | 1984-07-24 | Cincinnati Tool, Division Of Warren Tool Corporation | Drilling fixture |
| RU2183545C2 (en) * | 2000-04-25 | 2002-06-20 | Акционерное общество "АвтоВАЗ" | Additional adjustable support |
| US20050135890A1 (en) * | 2003-12-23 | 2005-06-23 | Lynn Bauman | Bit holding apparatus for use with a power tool |
| CN202037359U (en) * | 2011-01-27 | 2011-11-16 | 山西东睦华晟粉末冶金有限公司 | High-precision abutting and pressing automatic-release positioning dual-bore drill |
| CN103084784A (en) * | 2013-01-28 | 2013-05-08 | 中国人民解放军第五七二一工厂 | Reassembly component multi-hole assembling precise off-location hole processing method |
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| CN212398829U (en) * | 2020-05-15 | 2021-01-26 | 沈阳飞机工业（集团）有限公司 | Frock is restoreed in processing of eccentric locating hole of dysmorphism grafting class part |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025204A (en) * | 2020-08-31 | 2020-12-04 | 河南柴油机重工有限责任公司 | Method for repairing embedded back hinge of ejector rod hole of machine body |
| CN112629465A (en) * | 2020-12-07 | 2021-04-09 | 北京星航机电装备有限公司 | Special-shaped profile detection assembly tool |
| CN113399697A (en) * | 2021-07-08 | 2021-09-17 | 中车太原机车车辆有限公司 | Detection and repair method for ejector rod clamping stagnation of railway vehicle relief valve |
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