CN109454290B - A burr clearing device for tongue-and-groove export - Google Patents

A burr clearing device for tongue-and-groove export Download PDF

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Publication number
CN109454290B
CN109454290B CN201811355703.0A CN201811355703A CN109454290B CN 109454290 B CN109454290 B CN 109454290B CN 201811355703 A CN201811355703 A CN 201811355703A CN 109454290 B CN109454290 B CN 109454290B
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China
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ring
chip breaking
mortise
shaft structure
disc part
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CN201811355703.0A
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CN109454290A (en
Inventor
吴芳
肖飞
王素娟
胡婷婷
张玉宝
高惠
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Xi'an Xaec Suntimes High Tech Co ltd
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AECC Aviation Power Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D39/00Accessories for broaching machines or broaching devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)

Abstract

The invention provides a burr removing device for a mortise outlet, which comprises a chip breaking ring in a circular structure, wherein the chip breaking ring is fixed below a removed disc part; set up a chip breaking ring through the below at disc class part, exit end when broaching the tongue-and-groove extends to chip breaking ring department to it is difficult for producing hardening burr and the lattice deformation layer degree of depth to reduce disc class part's exit end effectively, and then has improved disc class part and be life.

Description

A burr clearing device for tongue-and-groove export
Technical Field
The invention belongs to the technical field of machining process equipment, and particularly relates to a burr removing device for a mortise outlet.
Background
The mortises of disc parts with axial mortises in engines are mostly machined by broaching processes. At present, the materials of the disc parts mainly comprise high-temperature stainless steel, high-temperature alloy, titanium alloy and powder metallurgy alloy. When the material of the disc is high-temperature alloy or powder metallurgy alloy, burrs are generated at the outlet of the mortise during mortise broaching, and the burrs are deformed and hardened due to broaching deformation and are difficult to remove; and secondly, when the broach passes through the mortise outlet, the base material of the part is taken out, so that the lattice deformation layer at the mortise outlet on the part is deepened, the deformation area cannot be thoroughly removed in the subsequent sharp edge passivation process, a stress concentration area is generated, and the processing quality and the service life of the disc part are seriously influenced.
Disclosure of Invention
The invention aims to provide a burr removing device for a mortise outlet, which solves the problem that when the existing mortise of a disc part is broached, burrs are generated at the mortise outlet, so that a stress concentration area is generated at the mortise outlet, and the processing quality and the service life of the disc part are seriously influenced.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a burr removing device for a mortise outlet, which comprises a chip breaking ring in a circular structure, wherein the chip breaking ring is fixed below a removed disc part.
Preferably, the excircle diameter of the chip breaking ring is equal to that of the cleaned disc part; the thickness of the chip breaking ring is determined by the diameter of the cleaned disc part, wherein when the diameter of the cleaned disc part is smaller than or equal to 600mm, the thickness of the chip breaking ring is 10-12 mm; when the diameter of the cleaned disc part is larger than 600mm, the thickness of the chip breaking ring is 12-15 mm.
Preferably, a positioning ring is fixed below the chip breaking ring, the positioning ring is of a T-shaped three-step shaft structure, the three-step shaft structure sequentially comprises a small end shaft structure, a middle step shaft structure and a large end shaft structure, and the small end shaft structure penetrates through an inner hole of the chip breaking ring to be matched with an inner hole of the cleaned disc part; the middle step shaft structure is matched with an inner hole of the chip breaking ring; the upper end surface of the big end shaft structure is attached to the lower end surface of the chip breaking ring.
Preferably, the diameter of the big end shaft structure of the positioning ring is equal to the diameter of the outer circle of the removed disc part.
Preferably, a first let slot is arranged along the circumferential direction of the big-end shaft structure of the positioning ring, and the first let slot is opened along the axial direction of the positioning ring.
Preferably, the depth of the first let slot is greater than that of the part mortise, and the difference is 1-2.
Preferably, an umbrella-shaped pressing ring is fixed above the removed disc part, and the lower end face of the large-end step shaft of the pressing ring is attached to the upper end face of the removed disc part.
Preferably, the diameter of the excircle of the large end of the compression ring is equal to that of the excircle of the disc part.
Preferably, a second let slot is arranged along the circumferential direction of the large-end step shaft of the clamp ring, and the second let slot is formed along the axial direction of the clamp ring.
Preferably, the depth of the second let slot is greater than that of the part mortise, and the difference is 1-2.
Compared with the prior art, the invention has the beneficial effects that:
according to the burr removing device for eliminating the mortise outlet, the chip breaking ring is arranged below the disc part, and the outlet end of the mortise during broaching is extended to the chip breaking ring, so that the depth of hardened burrs and a lattice deformation layer which are not easy to generate at the outlet end of the disc part is effectively reduced, and the service life of the disc part is prolonged.
Furthermore, a positioning ring is arranged below the chip breaking ring and used for radially positioning the disc parts.
Furthermore, the positioning ring is provided with the notch, so that when the broach works along the axial direction, only the disc parts and the chip breaking ring are broached, the positioning ring is not broached, and the service life of the broach can be prolonged.
Further, set up the clamp ring in the top of dish type part for to compressing tightly of dish type part and chip breaking ring, make the two formula structure as an organic whole, avoid producing the hardening burr in handing-over department.
Furthermore, the pressing ring is provided with the notch, so that the broach does not break when working along the axial direction, and the service life of the broach can be prolonged.
Drawings
FIG. 1 is a schematic view of an assembled structure of a chip breaker and a disc-like component;
FIG. 2 is a schematic view of a chip breaker ring;
FIG. 3 is a schematic view of the retaining ring;
FIG. 4 is a schematic structural view of a clamp ring;
the device comprises a chip breaking ring 1, a chip breaking ring 2, a positioning ring 3, a pressing ring 4, a cleaned disc part 201, a small end shaft structure 202, a large end shaft structure 203, a middle step shaft structure 204, a first clearance groove 301, a large end step shaft 302 and a second clearance groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-4, the invention provides a burr removing device for a mortise outlet, which comprises a chip breaking ring 1, wherein the chip breaking ring 1 is arranged below a disc part to be removed.
The chip breaking ring 1 is of a circular ring structure, the excircle diameter of the chip breaking ring 1 is equal to that of the cleaned disc part, the thickness H of the chip breaking ring 1 is determined by the diameter d2 of the cleaned disc part, and when d2 is not more than phi 600mm, H is 10-12 mm; when d2 is larger than 600mm, H is 12-15 mm.
The material of chip breaking ring 1 is cast iron, and its toughness is better, and the material is softer, and the iron fillings that form after the broaching are the fractal iron fillings, increase the chip breaking ring at broaching part exit end, after the clamp ring of broaching machine anchor clamps compressed tightly the part, made dish and chip breaking ring annular become an organic whole, and the exit end of broaching part extends to the exit end of chip breaking ring, is difficult for producing the sclerosis burr. And finally, scrap iron generated after the broach passes through the part and the scrap breaking ring is in a chip shape, so that the hardened burrs at the outlet of the mortise and the depth of the lattice deformation layer are effectively reduced. After each part is machined, the chip-breaking ring is discarded, and a new chip-breaking ring is assembled when a second part is machined.
A positioning ring 2 is further arranged below the chip breaking ring 1, the positioning ring 2 is a T-shaped three-step seat, and the excircle of the small-end shaft structure 201 of the positioning ring is matched with the inner hole of the removed disc part to be used for radial positioning of the disc part; the diameter of the outer circle of the large-end shaft structure 202 is equal to that of the outer circle of the disc part, and the end face of the large end is attached to the end face of the chip breaking ring 1; the middle step shaft structure 203 is matched with an inner hole of the chip breaking ring 1; meanwhile, a first let notch 204 is formed in the circumferential direction of the big end shaft structure, the first let notch 204 is formed in the axial direction of the big end shaft structure, the first let notch 204 is used for broaching only disc parts and chip breaking rings when the broach works in the axial direction, and the broaching is not carried out on the positioning ring 2, so that the service life of the broach can be prolonged.
The depth of the first let open slot 204 is 1-2 mm greater than that of the part mortise, and the shape of the first let open slot 204 is adapted to the outline shape of the broaching mortise; the material of the positioning ring 2 is generally 45# steel in consideration of rigidity and strength.
A clamp ring 3 is arranged above the cleaned disc part, the clamp ring 3 is of an umbrella-shaped structure, and the diameter of the excircle of the large end of the clamp ring 3 is equal to that of the disc part; a second let slot 302 is formed along the circumferential direction of the large-end step shaft 301, and the second let slot 302 is formed along the axial direction of the clamp ring 3. The broach does not damage the broach when working along the axial direction, and the service life of the broach can be prolonged.
And secondly, the depth of the groove is larger than that of the part mortise to 1-2 mm, and the shape of the groove is adapted to the outline shape of the broaching mortise. The material of the compression ring 3 is generally 45# steel in consideration of rigidity and strength.
The invention has the advantages that: through the use of the chip breaking ring, the hardened burrs at the outlet of the mortise and the depth of the lattice deformation layer are effectively reduced, and the mortise broaching quality of high-temperature alloy and powder metallurgy alloy disc parts is improved. The chip breaking ring is simple in structure and convenient to assemble and disassemble.
The pressing ring 3, the cleaned disk part 4, the chip breaking ring 1 and the positioning ring 2 are connected through bolts.
Examples
The chip breaking ring 1 is an annular part, the diameter of an inner hole of the chip breaking ring 1 is 535mm, the chip breaking ring is in clearance fit with a middle step shaft structure of a positioning ring 2 in a broaching machine fixture, one end face of the chip breaking ring is attached to the end face of a disk, the other end face of the chip breaking ring is attached to the end face of the positioning ring, the diameter of an outer circle of the chip breaking ring 1 is 608mm, the diameter of the outer circle of the chip breaking ring is consistent with that.
In fig. 1, a is the inlet of the broach of the part, b is the outlet of the original broach, and c is the outlet of the broach according to the present invention.
In the positioning ring 2, 135.38mm of the excircle of the small-end shaft structure is matched with the inner hole of the part to be used for radial positioning of the disc part; the outer circle 608mm of the large end is consistent with the outer circle of the disc; the end face is attached to the end face of the chip breaking ring 1, and the middle step shaft structure is 535mm and matched with an inner hole of the chip breaking ring 1; the outer circle of the broach is provided with a relief groove, so that only disk parts are broached when the broach works along the axial direction, the positioning ring 2 is not broached, and the service life of the broach can be prolonged. The diameter 554mm of the bottom of the slotted groove is smaller than the diameter 555mm of the bottom of the part mortise groove, and the shape of the slotted groove is matched with the outline shape of the broaching mortise groove.
The compression ring 3 is of an umbrella-shaped structure, and the outer circle 608mm of the large end is consistent with the outer circle of the part; the lower end surface of the connecting rod is attached to the upper end surface of the disc part. The outer circle of the broach is provided with a relief groove, so that the broach only broaches disk parts when working along the axial direction, does not broke the compression ring 3, and can prolong the service life of the broach. And the diameter 554mm of the bottom of the slotted groove is smaller than the diameter 555mm of the bottom of the part mortise groove, so that the shape of the slotted groove is similar to the outline shape of the broaching mortise groove.

Claims (4)

1. The burr removing device for the mortise outlet is characterized by comprising a chip breaking ring (1) in a circular ring structure, wherein the chip breaking ring (1) is fixed below a removed disc part;
a positioning ring (2) is fixed below the chip breaking ring (1), the positioning ring (2) is of a T-shaped three-step shaft structure, the three-step shaft structure sequentially comprises a small end shaft structure (201), a middle step shaft structure (203) and a large end shaft structure (202), and the small end shaft structure (201) penetrates through an inner hole of the chip breaking ring (1) to be matched with an inner hole of the cleaned disc part; the middle step shaft structure (203) is matched with an inner hole of the chip breaking ring (1); the upper end surface of the large-end shaft structure (202) is attached to the lower end surface of the chip breaking ring (1);
a pressing ring (3) with an umbrella-shaped structure is fixed above the cleaned disc part, and the lower end surface of a large-end step shaft (301) of the pressing ring (3) is attached to the upper end surface of the cleaned disc part;
the diameter of the large-end shaft structure of the positioning ring (2) is equal to the excircle diameter of the removed disc part;
a first let slot (204) is arranged along the circumferential direction of the large-end shaft structure of the positioning ring (2), and the first let slot (204) is formed along the axial direction of the positioning ring (2);
the diameter of the excircle of the large end of the compression ring (3) is equal to that of the excircle of the disc part;
and a second let slot (302) is arranged along the circumferential direction of the large-end step shaft (301) of the clamp ring (3), and the second let slot (302) is formed along the axial direction of the clamp ring (3).
2. A deburring device for mortise slot outlets according to claim 1 characterized in that the outer diameter of the chip-breaker ring (1) is equal to the outer diameter of the disk part to be deburred; the thickness of the chip breaking ring (1) is determined by the diameter of the cleaned disc part, wherein when the diameter of the cleaned disc part is less than or equal to 600mm, the thickness of the chip breaking ring (1) is 10-12 mm; when the diameter of the cleaned disc part is larger than 600mm, the thickness of the chip breaking ring (1) is 12-15 mm.
3. The burr removing device for the mortise outlet according to claim 1, wherein a depth of the first relief groove (204) is greater than a depth of the mortise of the part by a difference of 1 to 2.
4. The burr removing device for the mortise outlet according to claim 1, wherein a depth of the second relief groove (302) is greater than a depth of the mortise of the part by a difference of 1 to 2.
CN201811355703.0A 2018-11-14 2018-11-14 A burr clearing device for tongue-and-groove export Active CN109454290B (en)

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CN109454290B true CN109454290B (en) 2021-04-27

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Publication number Priority date Publication date Assignee Title
CN113523417A (en) * 2021-08-11 2021-10-22 无锡航亚科技股份有限公司 Broaching clamp design and hoisting method of ultrahigh turbine disc
CN113664286B (en) * 2021-09-30 2023-03-21 中国航发动力股份有限公司 Switching disc for broaching mortise of disc parts and disc part machining device
CN115780893A (en) * 2023-02-08 2023-03-14 成都和鸿科技股份有限公司 Broaching machining method and clamp for mortise of thin-wall disc part

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JPS5828059B2 (en) * 1980-11-19 1983-06-13 三菱重工業株式会社 Automatic pallet loading/unloading device
JPH08206942A (en) * 1995-02-06 1996-08-13 Asa Denshi Kogyo Kk Work device
CN101664883B (en) * 2009-08-28 2011-04-27 沈阳黎明航空发动机(集团)有限责任公司 Fixture special for mortise of broaching disc type part
CN202151786U (en) * 2011-06-27 2012-02-29 哈尔滨汽轮机厂有限责任公司 Broaching clamp for wheel slot of wheel disc of gas turbine engine
CN103769679B (en) * 2014-01-15 2016-04-06 西安航空动力股份有限公司 A kind of method improving wheel disc part outer tongue-and-groove broaching precision
CN104148728B (en) * 2014-05-05 2016-07-06 哈尔滨汽轮机厂有限责任公司 A kind of 0 grade of wheel disc calibration broaching fixture of 30MW Compressor Set
CN105108237B (en) * 2015-08-27 2017-07-25 上海外高桥造船有限公司 The processing method of metal tube herringbone intersection

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Effective date of registration: 20240603

Address after: 710000, Room 401, 4th Floor, Building 7, Dapu Industrial Park, No. 4955 Shangyuan Road, Economic Development Zone, Xi'an City, Shaanxi Province

Patentee after: XI'AN Xaec Suntimes HIGH-TECH Co.,Ltd.

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Address before: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province

Patentee before: AECC AVIATION POWER CO,LTD.

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