CN109551273B - An indexable fixture for rough machining blade inner back arc removal - Google Patents
An indexable fixture for rough machining blade inner back arc removal Download PDFInfo
- Publication number
- CN109551273B CN109551273B CN201910043797.6A CN201910043797A CN109551273B CN 109551273 B CN109551273 B CN 109551273B CN 201910043797 A CN201910043797 A CN 201910043797A CN 109551273 B CN109551273 B CN 109551273B
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- Prior art keywords
- arc
- indexable
- shaped
- pressing
- blade
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Classifications
-
- 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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
本发明创造提供了一种粗加工叶片内背弧去余量用可转位夹具，包括底板、V型块和可转位夹具体，可转位夹具体为圆柱状结构，可转位夹具体上开设有V型通槽，在可转位夹具体的两端均加工有弧形连接壁，在每个弧形连接壁上开设弧形长圆孔，在V型通槽的一端设有定位块，在V型块上开设有螺纹孔，弧形长圆孔的位置与螺纹孔的位置相适应，通过螺栓穿过弧形长圆孔后与螺纹孔连接将可转位夹具体固定在V型块上，在可转位夹具体的两侧各设有一压紧机构，每个压紧机构均包括压板、压块和双头螺栓，双头螺栓两端分别与压板和底板连接，压块设置在压板的一端。本发明创造能够通过改变工件安装在夹具上的位置来实现叶片不同的气道加工角度的加工。
The invention provides an indexable clamp for roughing the inner back arc of blades, which includes a base plate, a V-shaped block and an indexable clamp body. The indexable clamp body has a cylindrical structure, and the indexable clamp body has a cylindrical structure. There is a V-shaped through groove on the top, and arc-shaped connecting walls are processed at both ends of the indexable clamp body. An arc-shaped oblong hole is provided on each arc-shaped connecting wall, and a positioning block is provided at one end of the V-shaped through groove. , there is a threaded hole on the V-shaped block. The position of the arc-shaped oblong hole is adapted to the position of the threaded hole. The indexable clamp is specifically fixed on the V-shaped block by bolts passing through the arc-shaped oblong hole and then connected to the threaded hole. , there is a pressing mechanism on both sides of the indexable clamp body. Each pressing mechanism includes a pressing plate, a pressing block and a stud bolt. Both ends of the stud bolt are connected to the pressing plate and the bottom plate respectively. The pressing block is set on the pressing plate. one end. The invention can realize the processing of blades with different air passage processing angles by changing the position of the workpiece installed on the fixture.
Description
Technical Field
The invention belongs to the field of blade machining, and particularly relates to an indexable clamp for removing allowance of an inner back arc of a rough machined blade.
Background
The turbine blade is an important component part of the turbine, a large amount of machining allowance needs to be removed when the blade is roughly machined, and the defects of uneven allowance removal, unstable product quality, time and labor waste for alignment during machining, low efficiency and the like exist in the conventional experience by adopting modes such as clamp scribing. At present, in the blade processing process, especially when the rough milling of blade blank material is processed, in order to save processing time, improve production efficiency, generally carry out rough milling with blade blank material through the clamping of anchor clamps at ordinary high-power milling machine. However, for different types of blades, the blade air passage angles are different, so that the inner back arc allowance removing rough machining of the blades of different types cannot be realized by using a fixed clamp, each type of blade is required to be clamped and machined by a clamp with an appropriate angle, the clamp universality is low, the clamp is not beneficial to machining production even if the clamp is frequently replaced, and therefore, an indexable clamp suitable for the rough machining of the air passage angles of the different blades is required to be designed to realize the inner back arc allowance removing of the different blades.
Disclosure of Invention
Therefore, the invention aims to provide the indexable clamp for removing the allowance of the back arc in the rough machining blade, the machining requirements of different air passage machining angles of the blade can be realized by changing the position of a workpiece mounted on the clamp, the clamping is quick, the positioning is accurate, and the clamp universality is high.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the utility model provides a rough machining blade back of body arc removes surplus with indexable anchor clamps, but including the bottom plate of fixing on the lathe workstation, fix the V type piece on the bottom plate and set up the indexable anchor clamps body in the V type inslot of V type piece, indexable anchor clamps body be cylindric structure, set up the V type logical groove that places blade work piece usefulness along cylindric structure's axial direction at cylindric structure surface, all process at indexable anchor clamps body's both ends and have arc linking wall, two arc slotted holes have been seted up on every arc linking wall symmetry, set up the locating piece that restricts blade work piece horizontal migration at the one end of indexable anchor clamps body V type logical groove, set up on two groove surfaces of V type groove of V type piece with arc slotted hole matched with screw hole one-to-one, arc slotted hole and screw hole set up, fix indexable anchor clamps body on V type piece with corresponding screw hole connection after passing the arc slotted hole, each be equipped with a hold-down mechanism that is used for compressing tightly blade work piece in indexable anchor clamps body's both sides, every hold-down mechanism all includes clamp plate, briquetting and vertical clamp plate that sets up, the locating piece that sets up on the one end of clamp plate is close to the one end of clamp plate, the bolt is close to the one end of clamp plate.
Further, a supporting block is arranged at one end of each pressing plate, which is not provided with the pressing block, one end of the supporting block is propped against the lower surface of the pressing plate, and the other end of the supporting block is propped against the upper surface of the bottom plate.
Further, two the briquetting is the copper billet, and every briquetting all passes through the lower surface of little screw fixation at respective clamp plate.
Further, the pressing plate is provided with a slotted hole, and one end of the stud bolt penetrates through the lower nut and the slotted hole and then is sequentially connected with the gasket and the upper nut.
Furthermore, two positioning blocks are arranged and are fixed on two groove surfaces of the V-shaped through groove through bolts.
Further, the V-shaped block is of a split type structure and comprises two small V-shaped blocks which are arranged in parallel and are equal in size, and the two small V-shaped blocks are arranged at two ends of the indexable clamp body.
Further, the angle of the V-shaped groove of the V-shaped block is 120 degrees, and the angle of the V-shaped through groove of the indexable clamp body is 90 degrees.
Further, nuts used for fastening are arranged at the joints of the stud bolts and the bottom plate.
Further, the arc-shaped connecting wall is 1/2-3/4 of an arc.
Furthermore, the bottom plate is a square plate, and mounting holes are formed in the periphery of the bottom plate.
Compared with the prior art, the indexable clamp for removing the allowance of the inner back arc of the rough machining blade has the following advantages:
the invention creates the indexable clamp for removing the allowance of the inner back arc of the rough machining blade, and can realize the machining requirements of the blade air passage on different angles by changing the position of a workpiece mounted on the clamp, and specifically comprises the following steps: after a blade workpiece is placed on a V-shaped through groove of an indexable clamp body, according to the angle required by an inner back arc of the blade workpiece to be processed, the indexable clamp body is rotated to adjust the V-shaped through groove of the indexable clamp body to a corresponding angle, and then the indexable clamp body is fixed on a V-shaped block, so that the change of the angle of the workpiece is realized;
the indexable clamp for removing the allowance of the inner back arc of the rough machining blade has the advantages of uniform allowance removal, good consistency of batch machining dimensions, quick clamping, accurate positioning, short auxiliary time for aligning each blade, production efficiency improvement, benefit increase and the like, and is suitable for machining various guide and moving blades.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute an undue limitation on the invention. In the drawings:
FIG. 1 is a schematic view of an indexable clamp for removing residual inner back arc of a rough machined blade according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a side view in the K-direction of FIG. 1;
fig. 4 is a front view of fig. 3.
Reference numerals illustrate:
the fixture comprises a 1-bottom plate, a 2-V-shaped block, a 201-V-shaped groove, a 202-threaded hole, a 3-indexable fixture body, a 301-V-shaped through groove, a 302-arc connecting wall, a 303-arc slotted hole, a 4-stud bolt, a 5-pressing plate, a 501-slotted hole, a 6-pressing block, a 7-blade workpiece, an 8-positioning block, a 9-upper nut, a 10-supporting block, an 11-screw, a 12-lower nut and a 13-nut.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1-3, an indexable clamp for removing residual in a rough machining blade comprises a bottom plate 1 fixed on a machine tool workbench, a V-shaped block 2 fixed on the bottom plate 1 and an indexable clamp body 3 arranged in a V-shaped groove 201 of the V-shaped block 2, wherein the indexable clamp body 3 is of a cylindrical structure, V-shaped through grooves 301 for placing a blade workpiece 7 are formed in the surface of the cylindrical structure along the axial direction of the cylindrical structure, arc-shaped connecting walls 302 are machined at two ends of the indexable clamp body 3, two arc-shaped long round holes 303 are symmetrically formed in each arc-shaped connecting wall 302, a positioning block 8 for limiting horizontal movement of the blade workpiece 7 is arranged at one end of the V-shaped through groove 301 of the indexable clamp body 3, threaded holes 202 matched with the arc-shaped long round holes 303 are formed in two groove surfaces of the V-shaped block 2, the arc-shaped long round holes 303 and the threaded holes 202 are in one-to-one correspondence, the rotatable clamp body 3 is fixed on the V-shaped block 2 through screws 11 in connection with the corresponding threaded holes 202 after passing through the arc-shaped long round holes 303, two arc-shaped long round holes 303 are formed, two arc-shaped long round holes are symmetrically arranged at one end of the rotatable clamp body, two pressing blocks are arranged at two ends of the pressing bolts 4 are arranged at two sides of the pressing bolts 4, and one end of each pressing bolt 4 is arranged at one end of each pressing bolt 4 is close to one pressing bolt 4, and two pressing mechanism 4 is arranged at one end of pressing bolt 4, and pressing mechanism is close to one pressing bolt 4, and each pressing mechanism is arranged at one end 4.
The pressing plate 5 is provided with a supporting block 10 at one end which is not provided with the pressing block 6, one end of the supporting block 10 is propped against the lower surface of the pressing plate 5, and the other end is propped against the upper surface of the bottom plate 1.
The two pressing blocks 6 are copper blocks, and each pressing block 6 is fixed on the lower surface of the corresponding pressing plate 5 through a small screw.
The pressing plate 5 is provided with a slotted hole 501, and one end of the stud 4 penetrates through the lower nut 12 and the slotted hole 501 and then is sequentially connected with the gasket and the upper nut 9.
The two positioning blocks 8 are fixed on two groove surfaces of the V-shaped through groove 301 through bolts and are used for positioning horizontal displacement of the blade workpiece 7.
The V-shaped block 2 is of a split type structure and comprises two small V-shaped blocks with the same size, wherein the two small V-shaped blocks are arranged in parallel, are arranged at two ends of the indexable clamp body 3 and are used for supporting the indexable clamp body 3, so that the weight of the whole clamp is reduced, and the processing is facilitated.
The angle of the V-groove 201 of the V-block 2 is 120 ° and the V-angle of the V-through groove 301 of the indexable clamp body 3 is 90 °.
The joint of the stud 4 and the bottom plate 1 is provided with a nut 13 for fastening, the arc-shaped connecting wall 302 is a 1/2-3/4 arc, and the whole weight of the clamp is reduced.
The bottom plate 1 is a square plate, mounting holes are formed in the periphery of the bottom plate 1, during machining operation, the bottom plate 1 is fastened on a workbench surface through T-shaped nails in an adjusting mode, then the position of the V-shaped block 2 is fixed, and according to the angle requirement of a design drawing of the blade workpiece 7, the indexable clamp body 3 is connected into the V-shaped groove 201 of the V-shaped block 2 through screws 11.
When the fixture is used for processing, the fixture is specifically as follows: according to the requirement of the air passage angle of the blade workpiece 7, firstly, the indexable clamp body 3 is rotated, after the angle is adjusted to the required angle, as the arc-shaped long round holes 303 are arranged on the arc-shaped connecting walls 302 at the two ends of the indexable clamp body 3, even if the indexable clamp body 3 rotates for a certain angle, the indexable clamp body 3 can also be connected with the corresponding threaded holes 202 through the arc-shaped long round holes 303 through the screws 11, the connection of the indexable clamp body 3 and the V-shaped block 2 is realized, the angle adjustment of the indexable clamp body 3 is completed, then the positioning blocks 8 of the groove surfaces of the V-shaped grooves 201 of the V-shaped block 2 are utilized to position the blade workpiece 7 in the horizontal direction, at the moment, the position of the blade workpiece 7 in the V-shaped through groove 301 on the indexable clamp body 3 is fixed, after the angle and the height of the blade workpiece 7 reach the required requirement, the blade workpiece 7 is pressed tightly by the pressing blocks 6 of the pressing plate 5, the nuts are tightly screwed by the upper nuts 9 and the lower nuts 12, the bottoms are fixedly connected with the bottom plate 1 through the nuts 13, and finally, the blade machining can be performed. When the pressing plate 5 is fixed, the two sides of the clamp are respectively provided with the supporting blocks 10, and the supporting blocks are used for supporting when the blade workpiece 7 is pressed, so that the workpiece is pressed more firmly.
The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a rough machining blade back of body arc removes surplus with indexable anchor clamps which characterized in that: including fix bottom plate (1) on lathe workstation, fix indexable anchor clamps body (3) in V type piece (2) and setting up V type groove (201) of V type piece (2) on bottom plate (1), indexable anchor clamps body (3) be cylindric structure, set up V type logical groove (301) that place blade work piece (7) usefulness along cylindric structure's axial direction on cylindric structure surface, all processed arc linking wall (302) at the both ends of indexable anchor clamps body (3), symmetrically set up two arc slotted holes (303) on every arc linking wall (302), one end of V type logical groove (301) at indexable anchor clamps body (3) is equipped with locating piece (8) that restrict blade work piece (7) horizontal migration, set up threaded hole (202) that cooperate with arc slotted hole (303) on two groove surfaces of V type groove (201) of V type anchor clamps body (2), arc slotted hole (303) and threaded hole (202) one-to-one setting, pass corresponding with blade work piece (3) after passing arc slotted hole (303) through screw (11), be used for pressing down pressing clamp body (5) with indexable anchor clamps body (3) on each both sides (5, pressing clamp body (3) are fixed by one side (5) including pressing down mechanism, the blade type blade workpiece machining device comprises a pressing block (6) and a vertically arranged stud bolt (4), wherein the pressing plate (5) is connected with one end of the stud bolt (4), the other end of the stud bolt (4) is connected with a bottom plate (1), and the pressing block (6) is arranged on the pressing plate (5) and close to one end of the blade workpiece (7);
a supporting block (10) is arranged at one end of each pressing plate (5) where the pressing block (6) is not arranged, one end of the supporting block (10) is propped against the lower surface of the pressing plate (5), and the other end is propped against the upper surface of the bottom plate (1);
the two pressing blocks (6) are copper blocks, and each pressing block (6) is fixed on the lower surface of each pressing plate (5) through a small screw;
a slotted hole (501) is formed in the pressing plate (5), and one end of the stud bolt (4) penetrates through the lower nut (12) and the slotted hole (501) and then is sequentially connected with the gasket and the upper nut (9);
the two positioning blocks (8) are fixed on two groove surfaces of the V-shaped through groove (301) through bolts;
the V-shaped block (2) is of a split structure and comprises two small V-shaped blocks with the same size, which are arranged in parallel, and the two small V-shaped blocks are arranged at two ends of the indexable clamp body (3);
the angle of the V-shaped groove (201) of the V-shaped block (2) is 120 degrees, and the angle of the V-shaped through groove (301) of the indexable clamp body (3) is 90 degrees;
the joint of the stud bolt (4) and the bottom plate (1) is provided with a nut (13) for fastening.
2. The indexable clamp for removing residual inner back arc of a roughing blade of claim 1, wherein: the arc-shaped connecting wall (302) is 1/2-3/4 of an arc.
3. The indexable clamp for removing residual inner back arc of a roughing blade of claim 1, wherein: the bottom plate (1) is a square plate, and mounting holes are formed in the periphery of the bottom plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043797.6A CN109551273B (en) | 2019-01-17 | 2019-01-17 | An indexable fixture for rough machining blade inner back arc removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043797.6A CN109551273B (en) | 2019-01-17 | 2019-01-17 | An indexable fixture for rough machining blade inner back arc removal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109551273A CN109551273A (en) | 2019-04-02 |
| CN109551273B true CN109551273B (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910043797.6A Expired - Fee Related CN109551273B (en) | 2019-01-17 | 2019-01-17 | An indexable fixture for rough machining blade inner back arc removal |
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| Country | Link |
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| CN (1) | CN109551273B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370045A (en) * | 2019-07-29 | 2019-10-25 | 无锡市艾尔福叶片有限公司 | Fixture for stator blade milling overall length processing |
| CN111906569A (en) * | 2020-08-24 | 2020-11-10 | 天津铁路信号有限责任公司 | High-symmetry arc-shaped long round hole machining device |
| CN115648062A (en) * | 2022-11-01 | 2023-01-31 | 中国航发沈阳黎明航空发动机有限责任公司 | Radian adaptability hollow blade special fixture |
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| CN201565806U (en) * | 2009-11-03 | 2010-09-01 | 南通中能机械制造有限公司 | Adjustable blade processing tooling |
| CN104289934A (en) * | 2014-08-25 | 2015-01-21 | 哈尔滨汽轮机厂有限责任公司 | Blade locating device for machining milling dowel of compression ignition guide blade of milling machine |
| KR20160074941A (en) * | 2014-12-19 | 2016-06-29 | 황옥상 | Workpiece processing tool of milling machine |
| CN205394060U (en) * | 2016-03-03 | 2016-07-27 | 无锡润和叶片制造有限公司 | Steam turbine moving vane finish milling back of body reentrant angle universal fixturing body |
| CN107756084A (en) * | 2016-08-15 | 2018-03-06 | 田曼丽 | A kind of armature spindle milling machine tooling |
| WO2018166181A1 (en) * | 2017-03-17 | 2018-09-20 | 山东大学 | Flexible clamp and method for use in milling blades having large complex curved surfaces |
| CN209407992U (en) * | 2019-01-17 | 2019-09-20 | 哈尔滨市天行科技发展有限责任公司 | Indexable clamp for removing allowance of rough-machined blade inner back arc |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014101628A1 (en) * | 2014-02-10 | 2015-08-13 | Grasch Gmbh | Clamping device for clamping a turbine blade blank |
-
2019
- 2019-01-17 CN CN201910043797.6A patent/CN109551273B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201565806U (en) * | 2009-11-03 | 2010-09-01 | 南通中能机械制造有限公司 | Adjustable blade processing tooling |
| CN104289934A (en) * | 2014-08-25 | 2015-01-21 | 哈尔滨汽轮机厂有限责任公司 | Blade locating device for machining milling dowel of compression ignition guide blade of milling machine |
| KR20160074941A (en) * | 2014-12-19 | 2016-06-29 | 황옥상 | Workpiece processing tool of milling machine |
| CN205394060U (en) * | 2016-03-03 | 2016-07-27 | 无锡润和叶片制造有限公司 | Steam turbine moving vane finish milling back of body reentrant angle universal fixturing body |
| CN107756084A (en) * | 2016-08-15 | 2018-03-06 | 田曼丽 | A kind of armature spindle milling machine tooling |
| WO2018166181A1 (en) * | 2017-03-17 | 2018-09-20 | 山东大学 | Flexible clamp and method for use in milling blades having large complex curved surfaces |
| CN209407992U (en) * | 2019-01-17 | 2019-09-20 | 哈尔滨市天行科技发展有限责任公司 | Indexable clamp for removing allowance of rough-machined blade inner back arc |
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Inventor after: Liu Guangdong Inventor after: Ma Zhongchen Inventor after: Wang Songbo Inventor after: Wang Guichun Inventor after: Bao Yongming Inventor after: Hu Chengxin Inventor after: Liu Xinyu Inventor after: Cao Yang Inventor after: Ji Yousheng Inventor after: Gao Hui Inventor after: Mu Xiangzhen Inventor after: Zhang Yinling Inventor before: Bao Yongming Inventor before: Gao Hui Inventor before: Zhang Yinling Inventor before: Mu Xiangzhen Inventor before: Liu Guangdong Inventor before: Hu Chengxin Inventor before: Wang Guichun Inventor before: Ma Zhongchen Inventor before: Ji Yousheng Inventor before: Liu Xinyu Inventor before: Cao Yang Inventor before: Wang Songbo |
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Effective date of registration: 20210705 Address after: 150040 Heilongjiang Province, Harbin city Xiangfang district since the first Street No. 30 Applicant after: HEILONGJIANG ACADEMY OF MACHINERY SCIENCES Address before: 150040 Heilongjiang Province, Harbin city Xiangfang district since the first Street No. 30 Applicant before: HARBIN TIANXING TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Granted publication date: 20240315 |