CN202079415U - Positioning tool for producing shell parts - Google Patents

Positioning tool for producing shell parts Download PDF

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Publication number
CN202079415U
CN202079415U CN2011201320070U CN201120132007U CN202079415U CN 202079415 U CN202079415 U CN 202079415U CN 2011201320070 U CN2011201320070 U CN 2011201320070U CN 201120132007 U CN201120132007 U CN 201120132007U CN 202079415 U CN202079415 U CN 202079415U
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CN
China
Prior art keywords
substrate
macropore
arcs
circle
sections
Prior art date
Application number
CN2011201320070U
Other languages
Chinese (zh)
Inventor
赵振华
李玉萍
Original Assignee
上海飞华汽车部件有限公司
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 上海飞华汽车部件有限公司 filed Critical 上海飞华汽车部件有限公司
Priority to CN2011201320070U priority Critical patent/CN202079415U/en
Application granted granted Critical
Publication of CN202079415U publication Critical patent/CN202079415U/en

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Abstract

The utility model discloses a positioning tool for producing shell parts. The positioning tool comprises a substrate, a small hole positioning pin, a large hole positioning pin, three supporting seats and three pressing plate mechanism, wherein a large hole and a small hole are arranged in the substrate; the small hole positioning pin is a cylinder and is inserted in the small hole in the substrate; the large hole positioning pin is a tangential eccentric cylindrical pin, the cross section of the tangential eccentric cylindrical pin is a basic round formed by eight arcs, four of the eight arcs are concentric arcs and are evenly distributed on the circumferential line of a round with a radius R in a centrosymmetric manner, another four arcs are eccentric arcs and are respectively connected between every two adjacent concentric arcs, the radiuses of the four eccentric arcs are all R plus R minus H, and the centers of circles are respectively on the cross-shaped central line of the round and have a distance r away from the center of circle of the round; the large hole positioning pin is inserted in the large hole of the substrate; the three supporting seats are distributively arranged on the substrate; and the three pressing plate mechanisms are arranged on the substrate corresponding to the positions of the supporting seats.

Description

A kind of positioning tool of processing shell part

Technical field

The utility model relates to a kind of manufacturing technology process clamp fixture, is specifically related to a kind of positioning tool of processing shell part.

Background technology

In machine industry, the positioning tool of processed shell part (seeing Fig. 1 and Fig. 2) two pin one sides commonly used, wherein, two pins are a prismatic chamfered edge of straight pin pin, a face is a benchmark.Straight pin and prismatic chamfered edge pin all are fixed on the substrate, and straight pin is inserted among the location aperture A of workpiece, prismatic chamfered edge pin is inserted among the location macropore B of workpiece, and substrate leans against on the locating surface H of workpiece, carries out the processing of workpiece after fastening by supporting base and pressing plate cylinder.This locate mode is comparatively suitable for the part to be processed location of less face.In auto parts and components are made, sometimes because required precision must select a face and small one and large one location, two holes of part to be processed to carry out machining.When macropore during with traditional prismatic chamfered edge finger setting, the workpiece that processes can not guarantee precision; When macropore is located with straight pin, often the part to be processed loading and unloading are very difficult, are not to adorn, and unload to get off exactly, if the loading and unloading undue force, the large aperture, location is often pulled, but product becomes waste product.

Summary of the invention

The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of positioning tool of processing shell part is provided, it can guaranteed under the situation of positioning accuracy, make it to become and to guarantee the part to be processed positioning accuracy, can realize easy to loading and unloading again, do not injure the locating hole surface, thereby improve machining efficient and quality.

The technical scheme that realizes above-mentioned purpose is: a kind of positioning tool of processing shell part, comprise a substrate, an aperture alignment pin, a macropore alignment pin, three supporting bases and three press plate mechanisms, wherein,

A macropore and an aperture are offered in the plane coordinates position and the aperture of the location aperture of corresponding described shell part and location macropore on the described substrate;

Described aperture alignment pin is a cylinder, and it is inserted in the aperture on the described substrate tightly;

Described macropore alignment pin is an eccentric circle of contact pin, the cross section of this off-centre circle of contact pin be one by eight sections circular arcs constitute circular substantially, there are four sections to be isocentric circular arc in these almost circular eight sections circular arcs, these four sections isocentric circular arc are distributed on the perimeter line of circle that a radius is R in centrosymmetric mode, in addition four arcs is eccentric arc and is connected between the two adjacent described isocentric circular arc, the radius of these four sections eccentric arcs is R+r-H, and the center of circle of these four sections eccentric arcs lays respectively on the cross centre line of described circle and the center of circle of the described circle of distance is r; Described macropore alignment pin is inserted in the macropore of described substrate tightly;

Described three supporting bases are installed on the described substrate according to the locating surface of described shell part with distributing;

The position of described three corresponding described supporting bases of press plate mechanism is installed on the described substrate.

The positioning tool of above-mentioned processing shell part, wherein, the diameter 2R of four sections isocentric circular arc of cross section of described macropore alignment pin is H6/h5 with cooperating of the internal diameter of the location macropore of described shell part.

The positioning tool of above-mentioned processing shell part, wherein, each described press plate mechanism comprises that a corner cylinder and is installed in the pressing plate on the piston rod of corner cylinder.

The technical scheme of the positioning tool of processing shell part of the present utility model, employing changes prismatic chamfered edge pin of the prior art into eccentric circle of contact pin, it can guaranteed under the situation of positioning accuracy, make it to become and to guarantee the part to be processed positioning accuracy, can realize easy to loading and unloading again, do not injure the locating hole surface, thereby improve machining efficient and quality.Compare with the two pins positioning tool simultaneously of prior art, work efficiency improves 1/3.

Description of drawings

Fig. 1 is the structural representation of the shell part that processes;

Fig. 2 is that the P-P of Fig. 1 is to profile;

Fig. 3 is the structural representation of the positioning tool of processing shell part of the present utility model;

Fig. 4 is the cross-sectional view of the macropore alignment pin in the positioning tool of processing shell part of the present utility model.

The specific embodiment

In order to understand the technical solution of the utility model better, below by embodiment particularly and be described in detail in conjunction with the accompanying drawings:

See also Fig. 3, the positioning tool of processing shell part of the present utility model comprises a substrate 1, an aperture alignment pin 2, a macropore alignment pin 3, three supporting bases 4 and three press plate mechanisms 5, wherein:

A macropore and an aperture are offered in the plane coordinates position and the aperture of the location aperture of respective housings class part and location macropore on the substrate 1;

Aperture alignment pin 2 is a cylinder, and it is inserted in the aperture on the substrate 1 tightly;

See also Fig. 4 again, macropore alignment pin 3 is an eccentric circle of contact pin, cross section that promptly should off-centre circle of contact pin be one by eight sections circular arcs constitute circular substantially, there are four sections to be isocentric circular arc a1~a4 in these almost circular eight sections circular arcs, these four sections isocentric circular arc a1~a4 are distributed on the perimeter line of circle 30 that a radius is R in centrosymmetric mode, in addition four arcs is eccentric arc b1~b4 and is connected between the two adjacent isocentric circular arc, the radius of these four sections eccentric arc b1~b4 is R+r-H, and the center of circle of these four sections eccentric arc b1~b4 lays respectively on circular 30 the cross centre line and the center of circle O of distance circular 30 is r;

Macropore alignment pin 2 is inserted in the macropore of substrate 1 tightly;

Three supporting bases 4 are installed on the substrate 1 according to the locating surface of shell part with distributing;

The position of three press plate mechanism 5 corresponding supporting bases 4 is installed on the substrate 1, and each press plate mechanism 5 comprises that a corner cylinder and is installed in the pressing plate on the piston rod of corner cylinder.

When the positioning tool of processing shell part of the present utility model uses, the location aperture and the location macropore of workpiece are enclosed within respectively on aperture alignment pin 2 and the improved macropore alignment pin 3, axially the locating surface of workpiece is put on 4 of three supporting bases, the corner cylinder that starts three press plate mechanisms 5 makes the pressing plate workpiece pressing, can carry out machining.The diameter 2R of four sections isocentric circular arc a1~a4 of cross section of macropore alignment pin 3 is H6/h5 with cooperating of the internal diameter of the location macropore of workpiece.

Design obtains according to actual conditions for r in the macropore alignment pin 3 in the positioning tool of processing shell part of the present utility model and H, so that the connecting line rounding off of eight sections circular arcs, boundary is not obvious, can the surface of location macropore not constituted injury.Use this eccentric circle of contact finger setting processing, have convenient mounting and clamping, locate the advantages such as surface that accurately, can not destroy the location macropore, compare with the two pins positioning tools simultaneously of prior art, work efficiency improves 1/3, can guarantee the part to be processed quality again.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.

Claims (3)

1. a positioning tool of processing shell part comprises a substrate, an aperture alignment pin, a macropore alignment pin, three supporting bases and three press plate mechanisms, it is characterized in that,
A macropore and an aperture are offered in the plane coordinates position and the aperture of the location aperture of corresponding described shell part and location macropore on the described substrate;
Described aperture alignment pin is a cylinder, and it is inserted in the aperture on the described substrate tightly;
Described macropore alignment pin is an eccentric circle of contact pin, the cross section of this off-centre circle of contact pin be one by eight sections circular arcs constitute circular substantially, there are four sections to be isocentric circular arc in these almost circular eight sections circular arcs, these four sections isocentric circular arc are distributed on the perimeter line of circle that a radius is R in centrosymmetric mode, in addition four arcs is eccentric arc and is connected between the two adjacent described isocentric circular arc, the radius of these four sections eccentric arcs is R+r-H, and the center of circle of these four sections eccentric arcs lays respectively on the cross centre line of described circle and the center of circle of the described circle of distance is r; Described macropore alignment pin is inserted in the macropore of described substrate tightly;
Described three supporting bases are installed on the described substrate according to the locating surface of described shell part with distributing;
The position of described three corresponding described supporting bases of press plate mechanism is installed on the described substrate.
2. the positioning tool of processing shell part according to claim 1 is characterized in that, the diameter 2R of four sections isocentric circular arc of cross section of described macropore alignment pin is H6/h5 with cooperating of the internal diameter of the location macropore of described shell part.
3. the positioning tool of processing shell part according to claim 1 is characterized in that, each described press plate mechanism comprises that a corner cylinder and is installed in the pressing plate on the piston rod of corner cylinder.
CN2011201320070U 2011-04-28 2011-04-28 Positioning tool for producing shell parts CN202079415U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201320070U CN202079415U (en) 2011-04-28 2011-04-28 Positioning tool for producing shell parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201320070U CN202079415U (en) 2011-04-28 2011-04-28 Positioning tool for producing shell parts

Publications (1)

Publication Number Publication Date
CN202079415U true CN202079415U (en) 2011-12-21

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CN2011201320070U CN202079415U (en) 2011-04-28 2011-04-28 Positioning tool for producing shell parts

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CN (1) CN202079415U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104416375A (en) * 2013-09-02 2015-03-18 上海胜僖汽车配件有限公司 Auxiliary machining device for rice transplanter left and right drive box parts
CN105479123A (en) * 2016-02-04 2016-04-13 山东富源履带机械有限公司 Tool for machining box and machining technology of tool
CN105773236A (en) * 2016-05-26 2016-07-20 盛瑞传动股份有限公司 Clamp for brake paw machining
CN106141727A (en) * 2015-04-13 2016-11-23 池州市旭豪机械有限公司 A kind of sewing machine housing milling fixture
CN106584168A (en) * 2016-12-23 2017-04-26 安徽普伦智能装备有限公司 Fixture for processing of disc parts
CN108838605A (en) * 2018-07-27 2018-11-20 北京新能源汽车股份有限公司 Tool positioning device
CN109249194A (en) * 2018-09-14 2019-01-22 宁波汇智恒动自动化科技有限公司 A kind of fully automated assembly line rotary table

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104416375A (en) * 2013-09-02 2015-03-18 上海胜僖汽车配件有限公司 Auxiliary machining device for rice transplanter left and right drive box parts
CN106141727A (en) * 2015-04-13 2016-11-23 池州市旭豪机械有限公司 A kind of sewing machine housing milling fixture
CN105479123A (en) * 2016-02-04 2016-04-13 山东富源履带机械有限公司 Tool for machining box and machining technology of tool
CN105479123B (en) * 2016-02-04 2017-09-22 山东富源履带机械有限公司 A kind of casing processing tool and its processing technology
CN105773236A (en) * 2016-05-26 2016-07-20 盛瑞传动股份有限公司 Clamp for brake paw machining
CN105773236B (en) * 2016-05-26 2018-05-11 盛瑞传动股份有限公司 A kind of brake pawl fixture for processing
CN106584168A (en) * 2016-12-23 2017-04-26 安徽普伦智能装备有限公司 Fixture for processing of disc parts
CN108838605A (en) * 2018-07-27 2018-11-20 北京新能源汽车股份有限公司 Tool positioning device
CN109249194A (en) * 2018-09-14 2019-01-22 宁波汇智恒动自动化科技有限公司 A kind of fully automated assembly line rotary table

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GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: Jiading District Xuhang town 201808 Shanghai city a new road No. 2288

Patentee after: SHANGHAI FEIHUA AUTOPARTS CORPORATION

Address before: Jiading District Xuhang town 201808 Shanghai city a new road No. 2288

Patentee before: Feihua Automotive Parts Co., Ltd., Shanghai

C56 Change in the name or address of the patentee

Owner name: SHANGHAI FEIHUA INDUSTRY CO., LTD.

Free format text: FORMER NAME: FEIHUA AUTOMOTIVE PARTS CO., LTD., SHANGHAI