CN203437702U - Clamp special for machining locking hole of expanding rod - Google Patents

Clamp special for machining locking hole of expanding rod Download PDF

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Publication number
CN203437702U
CN203437702U CN201320526552.7U CN201320526552U CN203437702U CN 203437702 U CN203437702 U CN 203437702U CN 201320526552 U CN201320526552 U CN 201320526552U CN 203437702 U CN203437702 U CN 203437702U
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CN
China
Prior art keywords
hole
clamp
square
machining
locking hole
Prior art date
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Active
Application number
CN201320526552.7U
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Chinese (zh)
Inventor
孙盛丽
杨艳
赵祎昕
魏成双
魏崇巍
宋万英
柳薇
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.)
Harbin Turbine Co Ltd
Original Assignee
Harbin Turbine 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 Harbin Turbine Co Ltd filed Critical Harbin Turbine Co Ltd
Priority to CN201320526552.7U priority Critical patent/CN203437702U/en
Application granted granted Critical
Publication of CN203437702U publication Critical patent/CN203437702U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a special clamp, in particular to a clamp special for machining a locking hole of an expanding rod. The clamp aims to change the condition that when a bench worker draws lines and drills counter bored holes inside an expanding rod handle, the machining efficiency and the machining accuracy are low. The clamp comprises a clamp body and a drill bush. A square through hole is machined in one end surface of the clamp body, a round hole is machined in the upper surface of the clamp body and communicated with the square through hole, and the drill bush is installed in the round hole. A drilling head leading hole is machined in the upper end surface of the drill bush and communicated with the square through hole. The clamp is used for machining the locking hole of the expanding rod.

Description

A kind of processing expander roll locking hole special fixture
Technical field
The utility model relates to a kind of special fixture, is specifically related to a kind of processing expander roll locking hole special fixture.
Background technology
Specific purpose tool when tube expander is nuclear power subsidiary factory assembling radiating tube, tube sheet, the important composition parts that expander roll is this instrument.Clamping and positioning hole when the counterbore being provided with in expander roll shank is use, when this counterbore of processing, adopts scribing by bench worker in the past, and by the processing mode of scribing by bench worker boring, working (machining) efficiency is low.
Utility model content
By scribing by bench worker, in expander roll shank, to bore counterbore working (machining) efficiency low in order to improve for the utility model, the situation that machining accuracy is low, and then a kind of processing expander roll locking hole special fixture is proposed.
The utility model is to address the above problem the technical scheme of taking to be: the utility model comprises clamp body and drill bushing, one end end face of clamp body is processed with square through-hole, the upper surface of clamp body is processed with circular hole, and circular hole is communicated with square through-hole, drill bushing is arranged in circular hole, drill bushing upper end end face is processed with drill bit and draws hole, and drill bit draws hole and is communicated with square through-hole.
The beneficial effects of the utility model are: the utility model is for batch machining expander roll locking hole, have greatly saved the non-cutting time of line, centering, have improved working (machining) efficiency 30%.During processing expander roll locking hole, owing to adopting special fixture to position, greatly improve the machining accuracy of locking hole, in reach ± 0.15mm of hole location, and improved the expander roll locking hole dimensional uniformity of same batch.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model, and Fig. 2 is the structural representation of clamp body.
The specific embodiment
The specific embodiment one: present embodiment is described in conjunction with Fig. 1 to Fig. 2, described in present embodiment, a kind of processing expander roll locking hole special fixture comprises clamp body 1 and drill bushing 2, one end end face of clamp body 1 is processed with square through-hole 1-1, the upper surface of clamp body 1 is processed with circular hole 1-2, and circular hole 1-2 is communicated with square through-hole 1-1, drill bushing 2 is arranged in circular hole 1-2, and drill bushing 2 upper end end faces are processed with drill bit and draw hole 2-1, and drill bit draws hole 2-1 and is communicated with square through-hole 1-1.
The specific embodiment two: in conjunction with Fig. 1 to Fig. 2, present embodiment is described, a kind of processing expander roll locking hole special fixture also comprises holding screw 3 described in present embodiment, and holding screw 3 is arranged on the upper end of clamp body 1, and holding screw 3 is for locking drill bushing 2.Other composition and annexation are identical with the specific embodiment one.
Operation principle
When the utility model is used, by expander roll shank square tail with shaft shoulder axial location in the square through-hole of clamp body, drill bit draws hole by drill bit, completes the processing to expander roll locking hole.

Claims (2)

1. a processing expander roll locking hole special fixture, it is characterized in that: described a kind of processing expander roll locking hole special fixture comprises clamp body (1) and drill bushing (2), one end end face of clamp body (1) is processed with square through-hole (1-1), the upper surface of clamp body (1) is processed with circular hole (1-2), and circular hole (1-2) is communicated with square through-hole (1-1), drill bushing (2) is arranged in circular hole (1-2), drill bushing (2) upper end end face is processed with drill bit and draws hole (2-1), and drill bit draws hole (2-1) and is communicated with square through-hole (1-1).
2. a kind of processing expander roll locking hole special fixture according to claim 1, it is characterized in that: described a kind of processing expander roll locking hole special fixture also comprises holding screw (3), holding screw (3) is arranged on the upper end of clamp body (1), and holding screw (3) is for locking drill bushing (2).
CN201320526552.7U 2013-08-27 2013-08-27 Clamp special for machining locking hole of expanding rod Active CN203437702U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320526552.7U CN203437702U (en) 2013-08-27 2013-08-27 Clamp special for machining locking hole of expanding rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320526552.7U CN203437702U (en) 2013-08-27 2013-08-27 Clamp special for machining locking hole of expanding rod

Publications (1)

Publication Number Publication Date
CN203437702U true CN203437702U (en) 2014-02-19

Family

ID=50088776

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320526552.7U Active CN203437702U (en) 2013-08-27 2013-08-27 Clamp special for machining locking hole of expanding rod

Country Status (1)

Country Link
CN (1) CN203437702U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106363211A (en) * 2016-11-07 2017-02-01 泉州市泉永机械发展有限公司 Drilling tool and process for machining connecting pin holes
CN109047865A (en) * 2018-10-30 2018-12-21 佛山市合宏泰业科技有限公司 A kind of thin-wall bush boring grab

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106363211A (en) * 2016-11-07 2017-02-01 泉州市泉永机械发展有限公司 Drilling tool and process for machining connecting pin holes
CN106363211B (en) * 2016-11-07 2018-11-23 泉州市泉永机械发展有限公司 For being connected to the drilling tool and its bore process of pin hole processing
CN109047865A (en) * 2018-10-30 2018-12-21 佛山市合宏泰业科技有限公司 A kind of thin-wall bush boring grab

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