CN103100872A - High-precision vehicle shell body conical surface positioning fixture - Google Patents
High-precision vehicle shell body conical surface positioning fixture Download PDFInfo
- Publication number
- CN103100872A CN103100872A CN2012104499236A CN201210449923A CN103100872A CN 103100872 A CN103100872 A CN 103100872A CN 2012104499236 A CN2012104499236 A CN 2012104499236A CN 201210449923 A CN201210449923 A CN 201210449923A CN 103100872 A CN103100872 A CN 103100872A
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- China
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- conical surface
- workpiece
- positioning fixture
- surface positioning
- shell body
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- Jigs For Machine Tools (AREA)
Abstract
The invention relates to a high-precision vehicle shell body conical surface positioning fixture which comprises a base. The base is provided with an base plate, the base plate is provided with a positioning column, grooves are evenly distributed on an outer circle of the positioning column, the grooves extend to the upper end face of the positioning column, a positioning hole is formed in the upper end face of the positioning column, and a positioning block is mounted on the upper end face of the positioning column. The high-precision vehicle shell body conical surface positioning fixture is simple in structure, economic and practical, and high in machining precision.
Description
Technical field
The present invention relates to technical field of tooling clamps, relate in particular to a kind of positioning tool for turning shell workpiece outer conical surface.
Background technology
The workpiece 1 of thin wall class as shown in Figure 1 is when carrying out the turning conical surface 11 to it, general processing method is that the cylindrical section 14 of workpiece 1 is held on the scroll chuck of lathe, but because this type of workpiece 1 cylindrical wall is thinner, if carry out clamping with lathe chuck, workpiece very easily deforms, particularly be obviously for the higher precision workpiece of required precision, cause machining accuracy undesirable.
Summary of the invention
The present invention is directed to above-mentioned shortcoming of the prior art, a kind of high accuracy car housing conical surface positioning fixture is provided, it is simple in structure, and is economical and practical, and machining accuracy is high.
The technical solution adopted in the present invention is as follows:
High accuracy car housing conical surface positioning fixture comprises pedestal, and pedestal has the chassis, and locating dowel is arranged on the chassis, the uniform groove of the cylindrical of locating dowel, and groove extends to the upper surface of locating dowel, with locating hole, on described upper surface, locating piece is installed on described upper surface;
Further technical scheme is as follows:
The uniform quantity of described groove is identical with the quantity of the boss of workpiece lumen circumference uniform distribution;
Described locating piece is three claw types;
Described locating piece is disc.
The invention has the advantages that: the locating dowel circumference at pedestal processes the groove that can match with the inner chamber boss of workpiece, workpiece is applied the effect of circumferencial direction power, at the locating dowel end face, locating piece is installed simultaneously, is used for the dome on cavity wall in positioning workpieces, axially workpiece is being positioned; Avoid excircle of workpiece at the radial direction stress deformation, guarantee machining accuracy, simple in structure, economical and practical, machining accuracy is high.
Description of drawings
Fig. 1 is that the master of workpiece looks cutaway view.
Fig. 2 is the stereogram of pedestal of the present invention.
Fig. 3 is the stereogram before the present invention uses.
Fig. 4 is the state diagram of the present invention when using.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
as shown in Figures 1 to 4, the present invention includes and comprise pedestal 2, pedestal 2 has chassis 21, is adding man-hour, makes the scroll chuck of lathe carry out clamping to chassis 21, avoids the cylindrical of workpiece 1 is applied the effect of radial load, locating dowel 22 is arranged on chassis 21, the uniform groove 24 of the cylindrical of locating dowel 22, groove 24 match with the uniform boss 12 of the interior cavity wall of workpiece 1 and both quantity identical, in the process of processing, locating dowel 22 applies the effect of circumferencial direction power by 24 pairs of workpiece 1 of groove, make workpiece 1 with pedestal 2 High Rotation Speed together, groove 24 extends to the upper surface 25 of locating dowel 22, on described upper surface 25 with locating hole 23, on described upper surface 25, locating piece 3 is installed, locating piece 3 can be designed to three claw types, also can be disc, locating piece 3 is arranged on the upper surface 25 of locating dowel 22 and pushes down on convex shoulder 13 in workpiece 1 inner chamber by screw 4, workpiece 1 is carried out axial location to be clamped,
Method of operating of the present invention is as follows:
The first step is enclosed within workpiece 1 on the locating dowel 22 of pedestal 2, and the boss 12 in workpiece 1 inner chamber is matched with groove 24 on locating dowel 22 cylindricals respectively;
Second step with the convex shoulder 13 in locating piece 3 workpiece pressing 1 inner chambers, carries out axial location to workpiece 1 by screw 4;
The 3rd step made the chassis 21 on the scroll chuck clamp base 2 of lathe, avoided the clamping with excircle of workpiece 14; Workpiece 1 rotates together with pedestal 2, and the outer conical surface 11 of workpiece 1 is machined.
Above description is explanation of the invention, is not that limited range of the present invention within protection scope of the present invention, can be done any type of modification referring to claim to the restriction of invention.
Claims (4)
1. high accuracy car housing conical surface positioning fixture, comprise pedestal (2), pedestal (2) has chassis (21), locating dowel (22) is arranged on chassis (21), it is characterized in that: the uniform groove of cylindrical (24) of locating dowel (22), groove (24) extends to the upper surface (25) of locating dowel (22), and described upper surface (25) are upper with locating hole (23), and locating piece (3) is installed on described upper surface (25).
2. high accuracy car housing conical surface positioning fixture as claimed in claim 1, it is characterized in that: the uniform quantity of groove (24) is identical with the quantity of the boss (12) of workpiece (1) inner chamber circumference uniform distribution.
3. high accuracy car housing conical surface positioning fixture as claimed in claim 1 or 2, it is characterized in that: locating piece (3) is three claw types.
4. high accuracy car housing conical surface positioning fixture as claimed in claim 1 or 2, it is characterized in that: locating piece (3) is disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104499236A CN103100872A (en) | 2012-11-12 | 2012-11-12 | High-precision vehicle shell body conical surface positioning fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104499236A CN103100872A (en) | 2012-11-12 | 2012-11-12 | High-precision vehicle shell body conical surface positioning fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103100872A true CN103100872A (en) | 2013-05-15 |
Family
ID=48309254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104499236A Pending CN103100872A (en) | 2012-11-12 | 2012-11-12 | High-precision vehicle shell body conical surface positioning fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103100872A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386621A (en) * | 2013-07-31 | 2013-11-13 | 湖北三江航天红阳机电有限公司 | Boring mill clamp for forming inner oblique opening in composite cabin section and method for forming inner oblique opening in composite cabin section |
| CN112846859A (en) * | 2021-02-22 | 2021-05-28 | 四川明日宇航工业有限责任公司 | Machining tool for missile shell and clamping method of machining tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3844617A1 (en) * | 1988-08-26 | 1990-03-22 | Licentia Gmbh | Power tool with a combined device for braking to standstill and for clamping the tool |
| JP2001004733A (en) * | 1999-06-25 | 2001-01-12 | Koji Yamawaki | System and method for positioning |
| CN201537820U (en) * | 2009-11-19 | 2010-08-04 | 西安西航集团莱特航空制造技术有限公司 | Three-point locating special fixture for thin-walled rotary part |
| CN102152138A (en) * | 2011-03-08 | 2011-08-17 | 哈尔滨理工大学 | Special clamp for turning titanium alloy thin-wall part with complex profile |
| CN202200069U (en) * | 2011-08-24 | 2012-04-25 | 湖南南方宇航工业有限公司 | Turner clamp |
| CN202964205U (en) * | 2012-11-12 | 2013-06-05 | 无锡市航鹄科技有限公司 | Positioning fixture for turning conical surface of shell in high precision |
-
2012
- 2012-11-12 CN CN2012104499236A patent/CN103100872A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3844617A1 (en) * | 1988-08-26 | 1990-03-22 | Licentia Gmbh | Power tool with a combined device for braking to standstill and for clamping the tool |
| JP2001004733A (en) * | 1999-06-25 | 2001-01-12 | Koji Yamawaki | System and method for positioning |
| CN201537820U (en) * | 2009-11-19 | 2010-08-04 | 西安西航集团莱特航空制造技术有限公司 | Three-point locating special fixture for thin-walled rotary part |
| CN102152138A (en) * | 2011-03-08 | 2011-08-17 | 哈尔滨理工大学 | Special clamp for turning titanium alloy thin-wall part with complex profile |
| CN202200069U (en) * | 2011-08-24 | 2012-04-25 | 湖南南方宇航工业有限公司 | Turner clamp |
| CN202964205U (en) * | 2012-11-12 | 2013-06-05 | 无锡市航鹄科技有限公司 | Positioning fixture for turning conical surface of shell in high precision |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386621A (en) * | 2013-07-31 | 2013-11-13 | 湖北三江航天红阳机电有限公司 | Boring mill clamp for forming inner oblique opening in composite cabin section and method for forming inner oblique opening in composite cabin section |
| CN103386621B (en) * | 2013-07-31 | 2016-01-20 | 湖北三江航天红阳机电有限公司 | Angle hatch method in a kind of composite cabin section |
| CN112846859A (en) * | 2021-02-22 | 2021-05-28 | 四川明日宇航工业有限责任公司 | Machining tool for missile shell and clamping method of machining tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130515 |