CN218946961U - Quick positioning fixture for special-shaped shell - Google Patents
Quick positioning fixture for special-shaped shell Download PDFInfo
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- CN218946961U CN218946961U CN202222827198.3U CN202222827198U CN218946961U CN 218946961 U CN218946961 U CN 218946961U CN 202222827198 U CN202222827198 U CN 202222827198U CN 218946961 U CN218946961 U CN 218946961U
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Abstract
The utility model belongs to the field of mechanical clamp design, and particularly relates to a rapid positioning clamp for a special-shaped shell. Many casings receive part structure and length's influence, if not use accurate positioning fixture location part to process, influence the position degree of casing processing both ends hole, the unable equipment of product. The utility model relates to a rapid positioning clamp for a special-shaped shell, which comprises a positioning plate, a pressing gasket, a positioning pin and a hexagon head screw, wherein the positioning plate is provided with a protruding step structure and a pin hole, and the step structure is provided with a threaded hole; the special-shaped shell is sleeved on the step structure, the annular structure is arranged at the upper end of the step structure, and the pin holes of the positioning plate and the positioning holes of the special-shaped shell are positioned through the positioning pins; the hexagon head screw penetrates through the compression gasket and the annular structure hole to be connected with the threaded hole. The machining efficiency is high, the precision control is good, the quality is stable and reliable, and the high-precision machining requirement of the blank special-shaped oil outlet pipe can be met.
Description
Technical Field
The utility model belongs to the field of mechanical clamp design, and particularly relates to a rapid positioning clamp for a special-shaped shell.
Background
In aviation fuel delivery pump, fuel feed pump have many casings to receive part structure and length's influence, if not use accurate positioning fixture location part to process, influence the position degree of casing processing both ends hole, the unable equipment of product.
Disclosure of Invention
The purpose of the utility model is that: the special-shaped shell quick positioning clamp has the advantages of improving machining efficiency, improving machining precision, stabilizing machining quality and meeting production and machining requirements.
The special-shaped shell is provided with an annular cavity, and an annular structure is arranged in the annular cavity.
The utility model relates to a rapid positioning clamp for a special-shaped shell, which is provided with an annular cavity, wherein the annular cavity is internally provided with an annular structure, and the positioning clamp comprises a positioning plate, a pressing gasket, a positioning pin and a hexagon head screw, wherein the positioning plate is provided with a plurality of grooves, wherein the grooves are formed in the grooves, and are used for accommodating the positioning pin and the hexagon head screw
The positioning plate is provided with a protruding step structure and a pin hole, and the step structure is provided with a threaded hole; the special-shaped shell is sleeved on the step structure, the annular structure is arranged at the upper end of the step structure, and the pin holes of the positioning plate and the positioning holes of the special-shaped shell are positioned through the positioning pins;
the hexagon head screw penetrates through the compression gasket and the annular structure hole to be connected with the threaded hole.
Advantageously, the positioning plate has a lateral positioning plane for aligning the angular orientation of the clamp.
Advantageously, the step structure of the positioning plate is a cylinder, cooperating with the annular cavity of the housing.
Advantageously, the number of use of the locating pins is one.
Advantageously, the outer circumference of the stepped structure is in a clearance fit with the inner diameter of the annular cavity for 6H/6H.
Advantageously, the locating hole is in a clearance fit with the locating pin for 6H/6H.
Advantageously, the pin bore is an interference fit 6H/6r with the dowel.
The machining center is with accurate positioning fixture, screws up the hexagon head screw, and the terminal surface compresses tightly the locating washer up end under the hexagon head screw, and the locating washer lower extreme face compresses tightly by the casing up end that is processed, and locating plate boss and pin boss have restricted by the radial removal of casing to realize by the accurate positioning action of processing casing.
The beneficial effects are that: the machining efficiency is high, the precision control is good, the quality is stable and reliable, and the high-precision machining requirement of the blank special-shaped oil outlet pipe can be met.
Drawings
FIG. 1 is a cross-sectional view of a precision positioning fixture for a machining center of the present utility model;
FIG. 2 is a top view of the precision positioning fixture for a machining center of the present utility model.
Wherein, 1-locating plate, 2-processed shell, 3-pressing gasket, 4-locating pin and 5-hexagon head screw
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1, a quick positioning fixture for a special-shaped shell, where the fixture is used for positioning one end of a machined shell 2, machining another end hole of the machined shell 2, and ensuring a relative positional relationship between the two end holes, and the fixture includes: locating plate 1, compress tightly gasket 3, locating pin 4, hexagon head screw 5, wherein, locating plate 1 is step structure and the centre bore is the screw thread and is used for connecting, by processing casing 2 place on the boss of locating plate 1 and by the internal diameter of processing casing 2 and the boss excircle clearance fit 6H/6H of locating plate 1, by the locating hole of processing casing 2 and the boss excircle clearance fit 6H/6H of locating pin 4, compress tightly gasket 3 cover on hexagon head screw 5, the locating hole of locating plate 1 and the location external diameter interference fit 6H/6r of locating pin 4 prevent that the locating pin is not hard up. The external thread of the hexagon head screw 5 is connected with the internal thread of the locating plate 1, the compression gasket 3 is placed on the machined shell 2, the machined shell 2 is axially compressed through the hexagon head screw 5, and the machined shell 2 is limited to axially move. The lower end face of the hexagon head screw 5 after installation cannot protrude out of the bottom face of the positioning plate.
During installation, the locating pin 4 is pressed into the pin hole of the locating plate 1 in an interference manner, the alignment flat of the locating plate 1 is smaller than 0.01, the center hole of the machined shell 2 is installed on the boss of the locating plate 1, the pin hole of the machined shell 2 is installed on the locating pin 4, the locating gasket 3 is sleeved on the hexagon head screw 5, the hexagon head screw 5 penetrates through the center hole of the machined shell and is connected with the center threaded hole of the locating plate 1, the hexagon head screw 5 is screwed, the lower end face of the hexagon head screw 5 is pressed against the upper end face of the locating gasket 3, the lower end face of the locating gasket 3 is pressed against the upper end face of the machined shell 2, the axial movement of the machined shell 2 is limited, the boss of the locating plate 1 and the pin boss 5 limit the radial movement of the machined shell 2, and therefore the precise locating function of the machined shell 2 is achieved, and the relative position relation of two end face holes of the shell is guaranteed.
Claims (7)
1. The utility model provides a quick positioning fixture of dysmorphism casing, this dysmorphism casing has annular cavity, and has annular structure, its characterized in that in annular cavity: the positioning fixture comprises a positioning plate (1), a pressing gasket (3), a positioning pin (4) and a hexagon head screw (5), wherein
The positioning plate (1) is provided with a protruding step structure and a pin hole, and the step structure is provided with a threaded hole; the special-shaped shell is sleeved on the step structure, the annular structure is arranged at the upper end of the step structure, and the pin hole of the locating plate (1) and the locating hole of the special-shaped shell are located through the locating pin (4);
the hexagon head screw (5) passes through the compression gasket (3) and the annular structure hole to be connected with the threaded hole.
2. The profiled housing quick positioning clamp of claim 1 wherein: the locating plate (1) is provided with a side locating plane (6) for aligning the angular direction of the clamp.
3. The profiled housing quick positioning clamp of claim 1 wherein: the step structure of the locating plate (1) is a cylinder and is matched with the annular cavity of the shell.
4. The profiled housing quick positioning clamp of claim 1 wherein: the number of the positioning pins (4) is one.
5. A profiled casing quick positioning clamp according to any one of claims 1 to 3 characterised in that: the excircle of the step structure is in clearance fit with the inner diameter of the annular cavity for 6H/6H.
6. A profiled casing quick positioning clamp according to any one of claims 1 to 3 characterised in that: the locating hole and the locating pin (4) are in clearance fit for 6H/6H.
7. A profiled casing quick positioning clamp according to any one of claims 1 to 3 characterised in that: the pin hole is in interference fit with the locating pin (4) by 6H/6r.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222827198.3U CN218946961U (en) | 2022-10-26 | 2022-10-26 | Quick positioning fixture for special-shaped shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222827198.3U CN218946961U (en) | 2022-10-26 | 2022-10-26 | Quick positioning fixture for special-shaped shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218946961U true CN218946961U (en) | 2023-05-02 |
Family
ID=86110627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222827198.3U Active CN218946961U (en) | 2022-10-26 | 2022-10-26 | Quick positioning fixture for special-shaped shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218946961U (en) |
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2022
- 2022-10-26 CN CN202222827198.3U patent/CN218946961U/en active Active
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