CN201592364U - Universal hold-down mechanism of blade drill jig for stream turbine - Google Patents
Universal hold-down mechanism of blade drill jig for stream turbine Download PDFInfo
- Publication number
- CN201592364U CN201592364U CN2010200047185U CN201020004718U CN201592364U CN 201592364 U CN201592364 U CN 201592364U CN 2010200047185 U CN2010200047185 U CN 2010200047185U CN 201020004718 U CN201020004718 U CN 201020004718U CN 201592364 U CN201592364 U CN 201592364U
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- universal
- down mechanism
- drill jig
- slide block
- cover plate
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Abstract
The utility model relates to a universal hold-down mechanism of a blade drill jig for a stream turbine. The universal hold-down mechanism comprises a frame consisting of an upper cover plate, a lower cover plate, a left cushion block and a right cushion block, wherein corresponding chutes are formed on the upper cover plate and the lower cover plate respectively; a plurality of notches are formed on the chutes; universal slide blocks are arranged between the upper cover plate and the lower cover plate; support shafts are arranged on the upper side and the lower side of each universal slide block respectively; the support shaft on the upper side of the universal slide block is mounted in the chute on the upper cover plate; the support shaft on the lower side of the universal slide block is mounted in the chute on the lower cover plate; pressure levers are movably connected to the universal slide blocks; the axial direction of each pressure lever and the axial direction of each support shaft are arranged in a crossed manner; and a pressure head is arranged at one end of each of the pressure levers. The universal hold-down mechanism further comprises chutes, the universal slide block, the pressure lever and the pressure head, and has the advantages of simple structure, strong universality, low use cost, convenient operation, flexible adjustment and high efficiency; and moreover, the pressure heads are used for hold-down of the blades and connected with the universal slide blocks through the pressure levers, and the universal slide blocks slide in the chutes.
Description
(1) technical field
The utility model relates to the machining frock, is specially a kind of universal hold-down mechanism of steam turbine blade drill jig.
(2) background technology
The turbine blade profile is a distortion profile, and blade profile processing utilizes three centre bores location usually.Three centre bores are processing location benchmark, so processing request is higher, need to adopt the special jewel anchor clamps to guarantee.
Existing drill jig structure as shown in Figure 1 and Figure 2, its by about two root posts 1 form clamp body with two base plates 8 up and down; Be fixed with below the base plate 8 of clamp body top and bore plate 2, on bore be fixed with one on the plate 2 on top 4; Be fixed with down above the base plate 8 of clamp body below and bore plate 9, be fixed with two following top 10 on the following brill plate 9; Two root posts, 1 inboard is provided with key 3, and guiding side plate 6 can move up and down along key 3.
The boring clamping process of turbine blade is as follows: at first detect on special measuring tool by the dedicated test model, determine in the blade profile back of the body arc and to advance the lagging edge surplus even, accomplish fluently the sample dotting punch of three centre bores; Then, in that on top 4 and down top 10 the location on the drill jig, the checking surplus is even with three sample dotting punches of blade 7; After determining, install location-plate 5 on blade 7, cast sn-bi alloy 11 fixes blade 7 in location-plate 5; On drilling machine, bore three centre bores of blade 7 then; After three centre drills are good, adopt hammer to break sn-bi alloy 11 into pieces, the fragment of sn-bi alloy 11 is melted again, carry out the fixedly boring of next blade, so circulation.
Above-mentioned method by cast sn-bi alloy fixed blade on drill jig, though can guarantee the crudy of blade three centre bores, operation is trouble, efficient is low, cost is high.
(3) summary of the invention
At the problems referred to above, the utility model provides a kind of universal hold-down mechanism of steam turbine blade drill jig, and this hold-down mechanism is simple in structure, and is convenient to operation, the production efficiency height.
Its technical scheme is such: it comprises by upper cover plate, lower cover, the framework that left side cushion block and right cushion block are formed, be respectively arranged with corresponding chute on described upper cover plate and the described lower cover, described chute is provided with a plurality of recesses, between described upper cover plate and described lower cover, be provided with universal slide block, the both sides up and down of described universal slide block are respectively arranged with back shaft, the back shaft of described universal slide block upside is installed in the chute of described upper cover plate, the back shaft of described universal slide block downside is installed in the chute of described lower cover, be connected with depression bar on the described universal slide block, axially axially arranged in a crossed manner with described back shaft of described depression bar, an end of described depression bar is provided with pressure head.
Its further technical scheme is:
Described depression bar is threaded with described universal slide block, and described depression bar is provided with clamp nut; Described pressure head is movably connected on the described depression bar; Described pressure head is provided with briquetting; Described briquetting is divided into back of the body arc voltage piece and inner arc briquetting; The material of described briquetting is a sn-bi alloy; One side of described framework is provided with hinge; The opposite side of described framework is provided with opening and closing structure; Described opening and closing structure comprises that handwheel, hand wheel pole reach and the hinged connecting plate of described hand wheel pole, and described hand wheel pole is arranged in the groove of described left cushion block or described right cushion block; Described back shaft is the bolt that is threaded on the described universal slide block.
The utility model comprises chute, universal slide block, depression bar and pressure head, and is simple in structure, and highly versatile, use cost are low, compress blade by pressure head, easy to operate, pressure head is connected with universal slide block by depression bar, universal slide block slides in chute, and adjusting is flexible, efficient is high; Pressure head is movably connected on the depression bar, and pressure head can rotate, and does a fine setting, and pressure head is compressed reliably; Pressure head is provided with briquetting, can be used to protect the profile of blade, by manufacturing different briquettings, can make the different profiles of briquetting applying blade, has increased versatility of the present utility model; The utility model is installed on the drill jig by hinge and opening and closing structure, convenient disassembly.
(4) description of drawings
Fig. 1 is the structural representation of existing steam turbine blade drill jig;
Fig. 2 is the A-A cutaway view among Fig. 1;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 is the B-B cutaway view among Fig. 3.
(5) specific embodiment
As shown in Figure 3, Figure 4, the utility model is a kind of universal hold-down mechanism that being used on the general steam turbine blade drill jig compresses blade that is installed in.It comprises the framework of being made up of by screw 5 upper cover plate 2, lower cover 6, left cushion block 15 and right cushion block 4.Be respectively arranged with corresponding chute 21 on upper cover plate 2 and the lower cover 6, chute 21 is provided with a plurality of recesses 22.Be provided with universal slide block 10 between upper cover plate 2 and lower cover 6, the both sides up and down of universal slide block 10 are respectively arranged with back shaft 8.The back shaft 8 of universal slide block 10 upsides is installed in the chute 21 of upper cover plate 2, and the back shaft 8 of universal slide block 10 downsides is installed in the chute 21 of lower cover 6, and the back shaft 8 of universal slide block 10 can slide along chute 21, and can be positioned on recess 22 places.Be connected with depression bar 11 on the universal slide block 10, depression bar 11 axially and back shaft 8 axially arranged in a crossed manner, preferably quadrature is arranged in a crossed manner, an end of depression bar 11 is provided with pressure head 12.The utility model is fixed blade 7 by mechanical mechanism, and is simple in structure, and highly versatile, use cost are low; Compress blade 7 by pressure head 12, easy to operate; Pressure head 12 is connected with universal slide block 10 by depression bar 11, and universal slide block 10 slides in chute 21, and adjusting is flexible, efficient is high.
In order to protect the profile of blade 7, on pressure head 12, can also be provided with briquetting 16,17, briquetting 16,17 adopts housing screw 23 to be fixed. Briquetting 16,17 manufactures according to the corresponding profile of blade 7, is divided into back of the body arc voltage piece 16 and inner arc briquetting 17.The material of briquetting 16,17 adopts low-melting alloy, is preferably sn-bi alloy.
The utility model is installed on the column 1 of general steam turbine blade drill jig.One side of the utility model framework is the right side in the present embodiment, is provided with hinge 3, and hinge 3 is installed on column 1 and the right cushion block 4 by screw 18.At the opposite side of framework, in the present embodiment left side, be provided with opening and closing structure.Opening and closing structure comprises handwheel 13, hand wheel pole 14 and the connecting plate 20 hinged with hand wheel pole 14, and connecting plate 20 is installed on the column 1 by screw, and hand wheel pole 14 is arranged in the groove of left cushion block 15.Certainly, the utility model also can be arranged on hinge 3 left side, and opening and closing structure is arranged on the right side, and correspondingly right cushion block 4 is provided with the groove that holds hand wheel pole 14.The utility model is installed on the drill jig convenient disassembly by hinge 3 and opening and closing structure.
In the utility model, the back shaft 8 of universal slide block 10 can be and universal slide block 10 integrative-structures, also can be the branch body structure.For example, back shaft 8 can adopt the bolt that is threaded on the universal slide block 10, particularly can adopt hexagon flange bolt, and locks with slim nut 9.
During use, the utility model one well matched two universal slide blocks 10 correspondingly have 2 pressure heads 12; Compressing a blade 7 generally needs to be equipped with 4 the utility model, and wherein, 2 the utility model are used to compress the convex profile of blade 7, other 2 interior arc shaped surfaces that are used to compress blade 7.
The course of work of the present utility model is as follows: blade 7 is positioned on the acorde bur anchor clamps according to the sample dotting punch of accomplishing fluently in advance, after special-purpose model checking, the universal hold-down mechanism of back of the body arc in the blade 7 is shut around hinge 3 rotations, be pressed abd fixed on by handwheel 13 on the column 1 of drill jig; Universal slide block 10 is moved along the chute 21 on upper cover plate 2 and the lower cover 6, move to the recess 22 of appropriate location, depression bar 11 is adjusted to the normal direction of blade 7, so that compress blade 7 in normal direction; Pressure head 12 around bearing pin 19 rotation, is done a fine setting, make fit the fully corresponding profile of blade 7 of back of the body arc voltage piece 16 and inner arc briquetting 17; After adjust the position,, blade 7 is fixed by regulating the clamp nut 20 on the depression bar 11; After three centre drills of blade 7 are good, unclamp the handwheel 13 of the universal hold-down mechanism on the arc shaped surface in the blade 7, open inner arc two universal hold-down mechanisms up and down, take out blade 7, adopt identical method again, next blade 7 is installed, blade 7 is fixing, the machining center hole.
Claims (10)
1. the universal hold-down mechanism of steam turbine blade drill jig, it is characterized in that: it comprises by upper cover plate, lower cover, the framework that left side cushion block and right cushion block are formed, be respectively arranged with corresponding chute on described upper cover plate and the described lower cover, described chute is provided with a plurality of recesses, between described upper cover plate and described lower cover, be provided with universal slide block, the both sides up and down of described universal slide block are respectively arranged with back shaft, the back shaft of described universal slide block upside is installed in the chute of described upper cover plate, the back shaft of described universal slide block downside is installed in the chute of described lower cover, be connected with depression bar on the described universal slide block, axially axially arranged in a crossed manner with described back shaft of described depression bar, an end of described depression bar is provided with pressure head.
2. the universal hold-down mechanism of steam turbine blade drill jig according to claim 1, it is characterized in that: described depression bar is threaded with described universal slide block, and described depression bar is provided with clamp nut.
3. the universal hold-down mechanism of steam turbine blade drill jig according to claim 1 and 2, it is characterized in that: described pressure head is movably connected on the described depression bar.
4. the universal hold-down mechanism of steam turbine blade drill jig according to claim 3, it is characterized in that: described pressure head is provided with briquetting.
5. the universal hold-down mechanism of steam turbine blade drill jig according to claim 4 is characterized in that: described briquetting is divided into back of the body arc voltage piece and inner arc briquetting.
6. the universal hold-down mechanism of steam turbine blade drill jig according to claim 4, it is characterized in that: the material of described briquetting is a sn-bi alloy.
7. the universal hold-down mechanism of steam turbine blade drill jig according to claim 1, it is characterized in that: a side of described framework is provided with hinge.
8. the universal hold-down mechanism of steam turbine blade drill jig according to claim 7, it is characterized in that: the opposite side of described framework is provided with opening and closing structure.
9. the universal hold-down mechanism of steam turbine blade drill jig according to claim 8, it is characterized in that: described opening and closing structure comprises that handwheel, hand wheel pole reach and the hinged connecting plate of described hand wheel pole, and described hand wheel pole is arranged in the groove of described left cushion block or described right cushion block.
10. the universal hold-down mechanism of steam turbine blade drill jig according to claim 1, it is characterized in that: described back shaft is the bolt that is threaded on the described universal slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200047185U CN201592364U (en) | 2010-01-15 | 2010-01-15 | Universal hold-down mechanism of blade drill jig for stream turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200047185U CN201592364U (en) | 2010-01-15 | 2010-01-15 | Universal hold-down mechanism of blade drill jig for stream turbine |
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| Publication Number | Publication Date |
|---|---|
| CN201592364U true CN201592364U (en) | 2010-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200047185U Expired - Fee Related CN201592364U (en) | 2010-01-15 | 2010-01-15 | Universal hold-down mechanism of blade drill jig for stream turbine |
Country Status (1)
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|---|---|
| CN (1) | CN201592364U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791765B (en) * | 2010-01-15 | 2011-12-14 | 无锡市艾尔福叶片有限公司 | Universal hold-down mechanism of steam turbine blade drill jig |
| CN103317371A (en) * | 2013-07-17 | 2013-09-25 | 大连理工大学 | Adjustable clamp used for numerical control machining of helicopter composite material rotor blade |
| CN104097098A (en) * | 2014-07-07 | 2014-10-15 | 西安工业大学 | Multipoint positioning method for large curved-surface thin-walled workpieces |
| CN104384804A (en) * | 2014-11-19 | 2015-03-04 | 深圳市大族激光科技股份有限公司 | Impeller blade and impeller upper plate laser welding method and clamping method and jig |
| CN104440214A (en) * | 2014-10-28 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Tenon positioning device and method of zero-allowance hollow high-pressure turbine working blade |
| CN105500054A (en) * | 2014-09-25 | 2016-04-20 | 安徽池州项赛机械制造有限公司 | Spindle box boring fixture |
| CN108723820A (en) * | 2018-05-30 | 2018-11-02 | 中国航发动力股份有限公司 | A kind of blade profile clamping device for aero-engine precision forged blade mechanical processing |
| CN111136510A (en) * | 2019-12-25 | 2020-05-12 | 贵阳航发精密铸造有限公司 | Datum conversion machining method and conversion tool for turbine guide blade with complex profile |
-
2010
- 2010-01-15 CN CN2010200047185U patent/CN201592364U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791765B (en) * | 2010-01-15 | 2011-12-14 | 无锡市艾尔福叶片有限公司 | Universal hold-down mechanism of steam turbine blade drill jig |
| CN103317371A (en) * | 2013-07-17 | 2013-09-25 | 大连理工大学 | Adjustable clamp used for numerical control machining of helicopter composite material rotor blade |
| CN103317371B (en) * | 2013-07-17 | 2015-10-28 | 大连理工大学 | A kind of helicopter composite material rotor blade digital control processing flexible jig |
| CN104097098A (en) * | 2014-07-07 | 2014-10-15 | 西安工业大学 | Multipoint positioning method for large curved-surface thin-walled workpieces |
| CN105500054A (en) * | 2014-09-25 | 2016-04-20 | 安徽池州项赛机械制造有限公司 | Spindle box boring fixture |
| CN104440214A (en) * | 2014-10-28 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Tenon positioning device and method of zero-allowance hollow high-pressure turbine working blade |
| CN104440214B (en) * | 2014-10-28 | 2016-10-19 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of tenon positioner without the hollow high-pressure turbine working blade of surplus and method |
| CN104384804A (en) * | 2014-11-19 | 2015-03-04 | 深圳市大族激光科技股份有限公司 | Impeller blade and impeller upper plate laser welding method and clamping method and jig |
| CN108723820A (en) * | 2018-05-30 | 2018-11-02 | 中国航发动力股份有限公司 | A kind of blade profile clamping device for aero-engine precision forged blade mechanical processing |
| CN111136510A (en) * | 2019-12-25 | 2020-05-12 | 贵阳航发精密铸造有限公司 | Datum conversion machining method and conversion tool for turbine guide blade with complex profile |
| CN111136510B (en) * | 2019-12-25 | 2021-09-10 | 贵阳航发精密铸造有限公司 | Datum conversion machining method and conversion tool for turbine guide blade with complex profile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20120115 |