CN216913025U - Five-axis machining double-head T-shaped blade root fixture - Google Patents

Five-axis machining double-head T-shaped blade root fixture Download PDF

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Publication number
CN216913025U
CN216913025U CN202220609035.5U CN202220609035U CN216913025U CN 216913025 U CN216913025 U CN 216913025U CN 202220609035 U CN202220609035 U CN 202220609035U CN 216913025 U CN216913025 U CN 216913025U
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China
Prior art keywords
clamp
machining
blade root
base
positioning block
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CN202220609035.5U
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Chinese (zh)
Inventor
杨铭宇
张慧
李辉
焦子虎
刘春雷
纪文龙
孙永强
郭玉莹
董志峰
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Harbin Turbine Co Ltd
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Harbin Turbine Co Ltd
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Priority to CN202220609035.5U priority Critical patent/CN216913025U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

A five-axis machining clamp for a double-head T-shaped blade root relates to the technical field of machining. The blade fixture aims to solve the problems that the existing blade fixture can only clamp one blade at a time, and the fixture body needs to be turned over during machining, so that the machining efficiency is low, and the machined tooth profile on the other side has an error with the machined tooth profile standard, so that the technological requirements cannot be met. The even locating piece and No. two locating pieces that are equipped with of upper surface of base, and locating piece and No. two locating piece parallel arrangement, the side of a locating piece is equipped with two screw holes along the length direction is even, and every threaded hole is equipped with a locking bolt, the upper surface of No. two locating pieces is equipped with two clamp plates along the length direction is even, every clamp plate passes through bolt and No. two block connections, the one end of base upper surface is equipped with the baffle, and the side of baffle is equipped with two screw holes along the length direction is even, and every threaded hole is equipped with a connecting bolt. The utility model is suitable for the technical field of machining.

Description

Five-axis machining double-head T-shaped blade root fixture
Technical Field
The utility model relates to the technical field of machining, in particular to a five-axis machining clamp for a double-head T-shaped blade root.
Background
The blade is an important component of a steam turbine unit, and the blade with the T-shaped blade root is widely applied. The T-shaped blade root has the defects of difficult chip removal, easy plastic deformation and difficult guarantee of precision in the machining process, and particularly the symmetrical precision of two small shoulders. The machining precision is critical to assembly, so the machining precision for the T-shaped blade root of the blade has high requirements, the forming cutter for the numerical control machine tool of the traditional required equipment can only clamp one product at a time when machining the tooth form of the T-shaped blade root, the other end of the machined tooth form needs to be clamped and turned for the second time to machine the other side, the efficiency is very low, the tooth form of the machined other side has an error with the machined tooth form reference, and the technological requirements cannot be met.
In summary, the conventional blade clamp can only clamp one blade at a time, and during machining, the clamp body needs to be turned over, so that the machining efficiency is low, and the machined tooth profile on the other side has an error from the machined tooth profile standard, so that the process requirements cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model provides a five-axis machining double-end T-shaped blade root fixture, aiming at solving the problems that the existing blade fixture can only clamp one blade at a time, and the fixture body needs to be turned over during machining, so that the machining efficiency is low, and the machined tooth profile on the other side has an error with the machined tooth profile standard, so that the technological requirements cannot be met.
The utility model discloses a five-axis machining clamp for a double-headed T-shaped blade root, which comprises a locking bolt, a base, a first positioning block, a second positioning block, a pressing plate, a connecting bolt and a baffle plate, wherein the locking bolt is arranged on the base;
the upper surface of the base is uniformly provided with a first positioning block and a second positioning block which are arranged in parallel, the side surface of the first positioning block is uniformly provided with two threaded holes along the length direction, each threaded hole is internally provided with a locking bolt, the upper surface of the second positioning block is uniformly provided with two pressing plates along the length direction, each pressing plate is connected with the second positioning block through a bolt, one end of the upper surface of the base is provided with a baffle, the side surface of the baffle is uniformly provided with two threaded holes along the length direction, and each threaded hole is internally provided with a connecting bolt;
furthermore, a positioning hole is formed in the center of one side of the base;
furthermore, the axis of the first positioning block is perpendicular to the axis of the base;
furthermore, a rubber pad is arranged on the end face of the locking bolt;
furthermore, the width of the second positioning block is smaller than that of the first positioning block;
further, the thickness of the base is 15 mm-20 mm;
furthermore, when the device is used, a blank is placed between the first positioning block and the second positioning block, the locking bolt is rotated to achieve transverse positioning and clamping of the blank, two pressing plates are mounted on the upper surface of the second positioning block to compress the blank, a baffle plate on the clamp is connected with a rotary table of a five-axis machine tool through a connecting bolt, a thimble of the machine tool is contacted with the inner wall of a positioning hole in the side face of a base, the two ends of the blank can be machined through the five-axis machine tool, after machining is completed, the blank is taken down, a machined workpiece is symmetrically cut through a saw, the workpiece is divided into two parts, machining of two blades can be completed, and machining efficiency is improved.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model overcomes the defects of the prior art, a blank is placed between a first positioning block and a second positioning block, a locking bolt is rotated to realize transverse positioning and clamping of the blank, two pressing plates are arranged on the upper surface of the second positioning block, so that the blank can be pressed, a baffle plate on a clamp is connected with a rotary table of a five-axis machine tool through a connecting bolt, and a thimble of the machine tool is contacted with the inner wall of a positioning hole on the side surface of a base, so that two ends of the blank can be processed by the five-axis machine tool, after the processing is finished, the blank is taken down, and a processed workpiece is symmetrically cut by a saw to divide the workpiece into two parts, so that the processing of two blades can be finished, the processing efficiency is improved, secondary face turning clamping is avoided, the same tooth form tolerance of the two ends of the processed workpiece can be ensured, and the process requirements are met.
Drawings
FIG. 1 is a top view of a five-axis machining double-ended T-blade root fixture according to the present invention;
FIG. 2 is a top view of a five-axis machining double-ended T-blade root fixture in use in accordance with the present invention.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 and 2, and the fixture for five-axis machining of the double-headed T-shaped blade root in the embodiment comprises a locking bolt 1, a base 2, a first positioning block 3, a second positioning block 4, a pressure plate 5, a connecting bolt 6 and a baffle 7;
a first positioning block 3 and a second positioning block 4 are uniformly arranged on the upper surface of the base 2, the first positioning block 3 and the second positioning block 4 are arranged in parallel, two threaded holes are uniformly formed in the side surface of the first positioning block 3 along the length direction, a locking bolt 1 is arranged in each threaded hole, two pressing plates 5 are uniformly arranged on the upper surface of the second positioning block 4 along the length direction, each pressing plate 5 is connected with the second positioning block 4 through a bolt, a baffle 7 is arranged at one end of the upper surface of the base 2, two threaded holes are uniformly formed in the side surface of the baffle 7 along the length direction, and a connecting bolt 6 is arranged in each threaded hole;
this embodiment, when using, put into No. 3 locating pieces of the first locating piece with No. 4 locating pieces with blank 10, and rotatory locking bolt 1, realize that the horizontal positioning to blank 10 is tight, again with two clamp plates 5 of No. 4 surface mounting of No. two locating pieces, thereby can compress tightly blank 10, baffle 7 on the anchor clamps passes through connecting bolt 6 and is connected with the revolving stage of five-axis machine tool, and utilize thimble 8 of lathe and the inner wall contact of the locating hole 9 of base 2 side, thereby usable five-axis machine tool processes the both ends of blank 10, after the processing is accomplished, take off blank 10, utilize the work piece symmetry cutting after the saw will process, make the work piece divide into two, thereby can accomplish the processing of two blades, thereby improve machining efficiency.
The second embodiment is as follows: the present embodiment is described with reference to fig. 1, and the present embodiment is a further limitation of the fixture according to the first embodiment, in which a five-axis machining fixture for a double-headed T-shaped blade root is provided with a positioning hole 9 at the center of one side of the base 2;
in the embodiment, the positioning hole 9 is formed in the center of one side of the base 2, and when the clamping device is used, the ejector pin of the machine tool is in contact with the positioning hole 9, so that the clamp is axially positioned, and the machining precision is improved.
The third concrete implementation mode: the present embodiment is described with reference to fig. 1, and the present embodiment is a further limitation of the fixture according to the first embodiment, and in the fixture for five-axis machining a double-headed T-shaped blade root according to the present embodiment, the axis of the first positioning block 3 is perpendicular to the axis of the base 2.
The fourth concrete implementation mode: the present embodiment is described with reference to fig. 1, and the present embodiment is a further limitation of the fixture according to the first embodiment, in which a rubber pad is provided on an end surface of the lock bolt 1 in the five-axis machining fixture for a double-headed T-shaped blade root according to the present embodiment;
in the specific embodiment, the rubber pad is arranged on the end face of the locking bolt 1, so that the surface of the workpiece is prevented from being damaged by locking.
The fifth concrete implementation mode: the present embodiment is described with reference to fig. 1, and the present embodiment is a further limitation of the fixture according to the first embodiment, in which the width of the second positioning block 4 is smaller than the width of the first positioning block 3 in the fixture for five-axis machining of a double-headed T-shaped blade root according to the present embodiment.
The sixth specific implementation mode: the present embodiment will be described with reference to fig. 1, and the present embodiment is a further limitation of the jig according to the second embodiment, and the thickness of the base 2 is 15mm to 20mm in the jig for five-axis machining a double-headed T-shaped blade root according to the present embodiment.
Principle of operation
When the five-axis machine tool is used, a blank 10 is placed between a first positioning block 3 and a second positioning block 4, the locking bolt 1 is rotated to achieve transverse positioning and clamping of the blank 10, two pressing plates 5 are mounted on the upper surface of the second positioning block 4 to compress the blank 10, a baffle 7 on the clamp is connected with a rotary table of the five-axis machine tool through a connecting bolt 6, an ejector pin 8 of the machine tool is in contact with the inner wall of a positioning hole 9 in the side face of a base 2, two ends of the blank 10 can be machined through the five-axis machine tool, the blank 10 is taken down after machining is completed, a machined workpiece is symmetrically cut through a saw, the workpiece is divided into two parts, machining of two blades can be completed, and machining efficiency is improved.

Claims (6)

1. The utility model provides a five-axis machining double-end T type blade root's anchor clamps which characterized in that: the device comprises a locking bolt (1), a base (2), a first positioning block (3), a second positioning block (4), a pressing plate (5), a connecting bolt (6) and a baffle plate (7);
the upper surface of base (2) is even to be equipped with locating piece (3) and No. two locating pieces (4), and locating piece (3) and No. two locating piece (4) parallel arrangement, the side of locating piece (3) is along the even two screw holes that are equipped with of length direction, and every threaded hole is equipped with a locking bolt (1), the upper surface of No. two locating piece (4) is along the even two clamp plates (5) that are equipped with of length direction, every clamp plate (5) are connected with No. two locating pieces (4) through the bolt, the one end of base (2) upper surface is equipped with baffle (7), and the side of baffle (7) is along the even two screw holes that are equipped with of length direction, and every threaded hole is equipped with a connecting bolt (6).
2. The five-axis machining double-headed T-shaped blade root clamp as claimed in claim 1, wherein: the center of one side of the base (2) is provided with a positioning hole (9).
3. The five-axis machining double-headed T-shaped blade root clamp as claimed in claim 1, wherein: the axis of the first positioning block (3) is perpendicular to the axis of the base (2).
4. The five-axis machining double-headed T-shaped blade root clamp as claimed in claim 1, wherein: and a rubber pad is arranged on the end surface of the locking bolt (1).
5. The five-axis machining double-headed T-shaped blade root clamp as claimed in claim 1, wherein: the width of the second positioning block (4) is smaller than that of the first positioning block (3).
6. The five-axis machining double-headed T-shaped blade root clamp as claimed in claim 1, wherein: the thickness of the base (2) is 15 mm-20 mm.
CN202220609035.5U 2022-03-18 2022-03-18 Five-axis machining double-head T-shaped blade root fixture Active CN216913025U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220609035.5U CN216913025U (en) 2022-03-18 2022-03-18 Five-axis machining double-head T-shaped blade root fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220609035.5U CN216913025U (en) 2022-03-18 2022-03-18 Five-axis machining double-head T-shaped blade root fixture

Publications (1)

Publication Number Publication Date
CN216913025U true CN216913025U (en) 2022-07-08

Family

ID=82227868

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220609035.5U Active CN216913025U (en) 2022-03-18 2022-03-18 Five-axis machining double-head T-shaped blade root fixture

Country Status (1)

Country Link
CN (1) CN216913025U (en)

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