CN203426757U - Clamp for finish machining of inner hole of thin-walled sleeve - Google Patents

Clamp for finish machining of inner hole of thin-walled sleeve Download PDF

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Publication number
CN203426757U
CN203426757U CN201320480987.2U CN201320480987U CN203426757U CN 203426757 U CN203426757 U CN 203426757U CN 201320480987 U CN201320480987 U CN 201320480987U CN 203426757 U CN203426757 U CN 203426757U
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CN
China
Prior art keywords
thin
sleeve
hand
walled sleeve
hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201320480987.2U
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Chinese (zh)
Inventor
胡小乐
刘晓松
周全福
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Hongdu Aviation Industry Group Co Ltd
Original Assignee
Jiangxi Hongdu Aviation Industry Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangxi Hongdu Aviation Industry Group Co Ltd filed Critical Jiangxi Hongdu Aviation Industry Group Co Ltd
Priority to CN201320480987.2U priority Critical patent/CN203426757U/en
Application granted granted Critical
Publication of CN203426757U publication Critical patent/CN203426757U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a clamp for finish machining of an inner hole of a thin-walled sleeve. A positioning seat is a whole formed by a small cylinder A and a big cylinder; the right end of the inner cavity of the big cylinder is a conical surface; the left end of the inner cavity of the big cylinder is provided with a round hole; a transitional step surface B is arranged between the round hole in the left end and the conical surface on the right end; the right end of the big cylinder is provided with external threads; the outer conical surface of an elastic bush is cooperated with the right end of the inner cavity of the positioning seat 1 in the conicity of being 1:10; the thin-walled sleeve is sleeved in the inner hole in a cylindrical surface of the elastic bush; the elastic bush and the left end of the thin-walled sleeve prop against the transitional step surface B; the right end of the thin-walled sleeve is provided with a rubber washer; the internal threads of an end cover are matched with the closely-pitched external thread at the right end of the positioning seat; the thin-walled sleeve is tightly pressed by virtue of the rubber washer. The side wall of the elastic bush is provided with an incision of being 2mm. By adopting the clamp, the rigidity of the thin-walled sleeve during the finish machining of the inner hole is guaranteed, the deformation during clamping and machining is avoided, the percent of pass of products can reach above 95%, the production cost is reduced, the production efficiency is improved, and the economic benefits are improved.

Description

A kind of fixture of thin-wall sleeve finishing of internal diameter
Technical field
The utility model relates to a kind of machining frock, particularly a kind of fixture of thin-wall sleeve finishing of internal diameter.
Background technology
Thin-wall sleeve is that a kind of appearance and size is φ 165x60, the cylindrical tube shape part of wall thickness 6mm, and material is No. 45 steel, and external diameter and endoporus tolerance are 0.025mm, and this part tube wall is thin, poor rigidity, very easily distortion of clamping and processing.In advanced development, adopt first rough turn, heat treatment quenching and tempering, more accurately machined technological process; Finishing step is paid attention to especially, and the lathe that choice accuracy is best, operates processing by veteran master worker, but part inside and outside circle is all the time more than overproof 0.02mm, percent defective almost 100%, and also production efficiency is low, and production cost is high, there is no the market competitiveness.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of fixture of thin-wall sleeve finishing of internal diameter.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of fixture of thin-wall sleeve finishing of internal diameter, positioning seat forms one by small column A and big column, big column inner chamber right-hand member is taper seat, big column inner chamber left end is circular hole, between left end circular hole and right-hand member taper seat, be transition bench terrace B, big column right-hand member is provided with external screw thread; The inner chamber right-hand member of the outer conical surface of resilient bushing and positioning seat adopts the tapering of 1: 10 to work in coordination, and thin-wall sleeve packs resilient bushing cylindrical hole into, and resilient bushing and thin-wall sleeve left end withstand transition bench terrace B; Thin-wall sleeve right-hand member is equipped with rubber washer, and the internal thread of end cap mates with the right-hand member closely-pitched external screw thread of positioning seat, by rubber washer, compresses thin-wall sleeve.Described resilient bushing sidewall is provided with the cut-out mouth of 2mm.
The beneficial effects of the utility model are: adopt fixture of the present utility model, guarantee the rigidity of thin-wall sleeve when fine finishining endoporus, avoid the distortion in clamping and processing, product percent of pass reaches more than 95%, reduce production cost, improved production efficiency and economic benefit.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
The specific embodiment
embodiment 1as shown in Figure 1: a kind of fixture of thin-wall sleeve finishing of internal diameter, positioning seat 1 forms one by small column A and big column, and big column inner chamber right-hand member is taper seat, and big column inner chamber left end is circular hole, between left end circular hole and right-hand member taper seat, be transition bench terrace B, big column right-hand member is provided with closely-pitched external screw thread; The tapering that the outer conical surface of resilient bushing 3 and positioning seat 1 inner chamber right-hand member are 1: 10 is worked in coordination, and thin-wall sleeve 5 packs the cylindrical hole of resilient bushing 3 into, and resilient bushing 3 and thin-wall sleeve 5 left ends withstand transition bench terrace B; Thin-wall sleeve 5 right-hand members are equipped with rubber washer 4, and the internal thread of end cap 2 mates with the right-hand member external screw thread of positioning seat 1, by rubber washer 4, compress thin-wall sleeve 5.Described resilient bushing 3 sidewalls are provided with the cut-out mouth of 2mm.

Claims (2)

1. the fixture of a thin-wall sleeve finishing of internal diameter, it is characterized in that: positioning seat (1) forms one by small column A and big column, big column inner chamber right-hand member is taper seat, big column inner chamber left end is circular hole, between left end circular hole and right-hand member taper seat, be transition bench terrace B, big column right-hand member is provided with external screw thread; Resilient bushing (3) packs the inner chamber right-hand member of positioning seat (1) into, the inner chamber right-hand member of the outer conical surface of resilient bushing (3) and positioning seat (1) adopts the tapering of 1: 10 to work in coordination; thin-wall sleeve (5) packs resilient bushing (3) cylindrical hole into, and resilient bushing (3) and thin-wall sleeve (5) left end withstand transition bench terrace B; Thin-wall sleeve (5) right-hand member is equipped with rubber washer (4), and the internal thread of end cap (2) mates with the right-hand member closely-pitched external screw thread of positioning seat (1), by rubber washer (4), compresses thin-wall sleeve (5).
2. a kind of fixture of thin-wall sleeve finishing of internal diameter according to claim 1, is characterized in that: described resilient bushing (3) sidewall is provided with the cut-out mouth of 2mm.
CN201320480987.2U 2013-08-08 2013-08-08 Clamp for finish machining of inner hole of thin-walled sleeve Active CN203426757U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320480987.2U CN203426757U (en) 2013-08-08 2013-08-08 Clamp for finish machining of inner hole of thin-walled sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320480987.2U CN203426757U (en) 2013-08-08 2013-08-08 Clamp for finish machining of inner hole of thin-walled sleeve

Publications (1)

Publication Number Publication Date
CN203426757U true CN203426757U (en) 2014-02-12

Family

ID=50055819

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320480987.2U Active CN203426757U (en) 2013-08-08 2013-08-08 Clamp for finish machining of inner hole of thin-walled sleeve

Country Status (1)

Country Link
CN (1) CN203426757U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103419051A (en) * 2013-08-08 2013-12-04 江西洪都航空工业集团有限责任公司 Thin-wall sleeve inner hole finish machining clamp and inner hole machining method
CN104493600A (en) * 2014-12-26 2015-04-08 济南第一机床有限公司 Special tooling for turning high-precision thin-wall cylinder liner bores
CN111922740A (en) * 2020-07-06 2020-11-13 河北师范大学 Lathe fixture of double-eccentric thin-wall sleeve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103419051A (en) * 2013-08-08 2013-12-04 江西洪都航空工业集团有限责任公司 Thin-wall sleeve inner hole finish machining clamp and inner hole machining method
CN104493600A (en) * 2014-12-26 2015-04-08 济南第一机床有限公司 Special tooling for turning high-precision thin-wall cylinder liner bores
CN111922740A (en) * 2020-07-06 2020-11-13 河北师范大学 Lathe fixture of double-eccentric thin-wall sleeve

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: JIANGSU HONGDU INTERNATIONAL ELECTROMECHANICAL CO., LTD.

Assignor: Hongdu Aviation Industry Group Co., td., Jiangxi Prov.

Contract record no.: 2014360000071

Denomination of utility model: Clamp for finish machining of inner hole of thin-walled sleeve

Granted publication date: 20140212

License type: Exclusive License

Record date: 20140422