CN203003499U - Automatic centering clamping fixture - Google Patents

Automatic centering clamping fixture Download PDF

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Publication number
CN203003499U
CN203003499U CN 201220539235 CN201220539235U CN203003499U CN 203003499 U CN203003499 U CN 203003499U CN 201220539235 CN201220539235 CN 201220539235 CN 201220539235 U CN201220539235 U CN 201220539235U CN 203003499 U CN203003499 U CN 203003499U
Authority
CN
China
Prior art keywords
press plate
automatic centering
locating
workpiece
centering clamping
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
CN 201220539235
Other languages
Chinese (zh)
Inventor
封新娥
张敬然
蔡勇
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.)
WUXI LUHU CORPORATION LIMITED
Original Assignee
Wuxi Lihu Wheel Manufacture 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 Wuxi Lihu Wheel Manufacture Co Ltd filed Critical Wuxi Lihu Wheel Manufacture Co Ltd
Priority to CN 201220539235 priority Critical patent/CN203003499U/en
Application granted granted Critical
Publication of CN203003499U publication Critical patent/CN203003499U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the technical field of workpiece clamping, in particular to an automatic centering clamping fixture. The automatic centering clamping fixture comprises a fixture body and a locating press plate. A guiding pillar is arranged on the fixture body. The locating press plate is sleeved on the guiding pillar and fixed and screwed by nuts. The locating press plate comprises a lower press plate and an upper press plate, wherein the lower press plate and the upper press plate are connected through locating pins. An O-shaped ring is installed between the lower press plate and the upper press plate. The automatic centering clamping fixture is used for clamping rotating workpieces, and the existing locating gaps can be eliminated when the workpieced are clamped, thus precision of workpiece manufacture can be guaranteed. The automatic centering clamping fixture is simple and clever in structure and low in cost.

Description

The self-centering compressing fixture
Technical field
The utility model relates to the Workpiece clamping technical field, is specially the self-centering compressing fixture.
Background technology
Need a kind of clamping device to fix workpiece in the rotary work piece process, general hold down gag is made by enterprise oneself usually, on chuck body one with lead, make pressing plate with a circular iron, pressing plate one side pressure is on workpiece, the other end is fixed with nut screwing clamping, adopt the mode of matched in clearance to be fixed on chuck body between circular iron (pressing plate) and rotary work piece to be processed, in the situation that processing request is higher, this kind positioning accuracy can not meet the processing request of product, both caused Workpiece Machining Accuracy low, again the wasting manpower and material resources.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple in structure, ingenious, rational self-centering compressing fixture, the positioning gap that exists when using this self-centering compressing fixture to eliminate clamping workpiece.
According to the technical solution of the utility model: the self-centering compressing fixture, comprise chuck body, positioning pressuring plate, on described chuck body, lead is set, described positioning pressuring plate is set on lead, fix with nut screwing clamping, feature is: described positioning pressuring plate comprises lower platen and the top board that connects by alignment pin, mounting O-shaped rings between described lower platen and described top board.
Described alignment pin is provided with three, is evenly arranged along the top board excircle.Described O type circle is elastic ring.
Described O type circle is located at the outer ring of alignment pin.
Technique effect of the present utility model is: use the utility model clamping rotary work piece, and the positioning gap that exists in the time of can eliminating clamping workpiece, thus guaranteed the precision that workpiece is processed; Simple in structure, ingenious, cost is lower.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the use state diagram of structure of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is further described.
In Fig. 1, comprise lower platen 1, O type circle 2, top board 3, alignment pin 4, lead 5, nut 6, workpiece 7, chuck body 8, positioning pressuring plate 9 etc.
As shown in Figure 1, the utility model is the self-centering compressing fixture, comprise chuck body 8, positioning pressuring plate 9, on described chuck body 8, lead 5 is set, described positioning pressuring plate 9 is set on lead 5, tightens fixingly with nut 6, and described positioning pressuring plate 9 comprises lower platen 1 and the top board 3 that connects by alignment pin 4, mounting O-shaped rings 2 between described lower platen 1 and described top board 3, described O type circle 2 is elastic ring.Described alignment pin 4 has three, is evenly arranged along top board 3 excircles.Described O type circle 2 is located at the outer ring of alignment pin 4.
The course of work of the present utility model is as follows: workpiece 7 and positioning pressuring plate 9 are set on lead 5 successively, then tighten fixing with nut 6, when fastening nut 6, top board 3 compresses O type circle 2 causes O type circle 2 excircle dimensions to become large, thereby tensioner makes workpiece 7 automatically adjust centering in workpiece 7 endoporus, eliminate the positioning gap that workpiece 7 clampings exist on chuck body 8, thereby improve positioning accuracy, reduce mismachining tolerance.
Use the utility model clamping rotary work piece, the positioning gap that exists in the time of can eliminating clamping workpiece, thus guaranteed the precision that workpiece is processed; The utility model is simple in structure, ingenious, and cost is lower.

Claims (4)

1. self-centering compressing fixture, comprise chuck body (8), positioning pressuring plate (9), lead (5) is set on described chuck body (8), described positioning pressuring plate (9) is set on lead (5), tighten fixing with nut (6), it is characterized in that: described positioning pressuring plate (9) comprises lower platen (1) and the top board (3) that connects by alignment pin (4), mounting O-shaped rings (2) between described lower platen (1) and described top board (3).
2. according to self-centering compressing fixture claimed in claim 1, it is characterized in that: described alignment pin (4) has three, is evenly arranged along top board (3) excircle.
3. according to self-centering compressing fixture claimed in claim 1, it is characterized in that: described O type circle (2) is elastic ring.
4. according to self-centering compressing fixture claimed in claim 1, it is characterized in that: described O type circle (2) is located at the outer ring of alignment pin (4).
CN 201220539235 2012-10-20 2012-10-20 Automatic centering clamping fixture Active CN203003499U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220539235 CN203003499U (en) 2012-10-20 2012-10-20 Automatic centering clamping fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220539235 CN203003499U (en) 2012-10-20 2012-10-20 Automatic centering clamping fixture

Publications (1)

Publication Number Publication Date
CN203003499U true CN203003499U (en) 2013-06-19

Family

ID=48595132

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220539235 Active CN203003499U (en) 2012-10-20 2012-10-20 Automatic centering clamping fixture

Country Status (1)

Country Link
CN (1) CN203003499U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102862079A (en) * 2012-10-20 2013-01-09 无锡蠡湖叶轮制造有限公司 Automatic centering compressing clamp
CN105339552A (en) * 2013-07-02 2016-02-17 卡特彼勒路面机械公司 Lower screed interfaces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102862079A (en) * 2012-10-20 2013-01-09 无锡蠡湖叶轮制造有限公司 Automatic centering compressing clamp
CN105339552A (en) * 2013-07-02 2016-02-17 卡特彼勒路面机械公司 Lower screed interfaces

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 214124 Jiangsu, Wuxi, Binhu District, Binhu Economic Development Zone Huayi Road, No. 2

Patentee after: WUXI LUHU CORPORATION LIMITED

Address before: 214124 Jiangsu, Wuxi, Binhu District, Binhu Economic Development Zone Huayi Road, No. 2

Patentee before: Wuxi Lihu Impeller Manufacturing Co.,Ltd.