CN212665539U - Core rod type positioning tool for machining helicopter components - Google Patents
Core rod type positioning tool for machining helicopter components Download PDFInfo
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- CN212665539U CN212665539U CN202021479961.2U CN202021479961U CN212665539U CN 212665539 U CN212665539 U CN 212665539U CN 202021479961 U CN202021479961 U CN 202021479961U CN 212665539 U CN212665539 U CN 212665539U
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- 238000003754 machining Methods 0.000 title claims abstract description 27
- 230000003139 buffering effect Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model discloses a helicopter is plug type location frock for parts machining, include: a clamping part and a cylindrical structure; the buffer connecting part is arranged at the end part of the clamping part; the positioning part is arranged at the end part of the buffer connecting part, the diameter of the positioning part is the same as the diameter of the inner circle of the cylindrical part to be processed, the length of the positioning part is the same as the length of the cylindrical part to be processed, and the diameter of the positioning part is smaller than that of the buffer connecting part; the thread fixing part is arranged at the end part of the positioning part, the surface of the thread fixing part is provided with threads, and the diameter of the thread fixing part is smaller than that of the positioning part; the axes of the clamping part, the buffer connecting part, the positioning part and the thread fixing part are overlapped. The utility model discloses a scheme can be convenient carry out fixed position to cylinder spare part to in the surface of cylinder spare part carries out machining, reduces the clamping location degree of difficulty of cylinder spare part, the size precision of guarantee cylinder spare part after machining.
Description
Technical Field
The utility model relates to a frock clamp field especially relates to a helicopter is plug type location frock for parts machining.
Background
With the continuous development of aviation technology, various high-performance aviation equipment (such as helicopters) are developed and manufactured in succession, but high-quality parts cannot be left behind the high-performance aviation equipment, and meanwhile, higher requirements are put forward for manufacturing the parts, for example, a cylindrical helicopter part cannot ensure that the axis of the part coincides with the axis of a main shaft of a machine tool because the outer surface of the part needs to be processed but the existing machine tool cannot be well fixed and positioned (the outer surface of the part needs to be processed and cannot be clamped), so that the size error of the machined part is large, the size precision of processing is greatly influenced, and even the part is directly scrapped, and the part is very difficult to process.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art, exist when processing cylinder spare part because clamping fixed positioning difficulty for its size precision is poor after spare part machining defect, the utility model discloses required solution problem lies in providing a plug type location frock is used in helicopter parts machining, makes and adopts can be convenient after this frock to carry out fixed positioning to cylinder spare part, so that the surface of cylinder spare part carries out machining, reduces the clamping location degree of difficulty of cylinder spare part, and the guarantee adopts the size precision of cylinder spare part after machining of plug type location frock clamping for helicopter parts machining.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a pair of helicopter is plug type location frock for parts machining, include:
the clamping part is of a cylindrical structure and is clamped by a machine core clamp of the machine tool for fixing the tool;
the buffer connecting part is arranged at the end part of the clamping part;
the positioning part is arranged at the end part of the buffer connecting part, the diameter of the positioning part is the same as the diameter of the inner circle of the cylindrical part to be processed, the length of the positioning part is the same as the length of the cylindrical part to be processed, and the diameter of the positioning part is smaller than that of the buffer connecting part;
the thread fixing part is arranged at the end part of the positioning part, the surface of the thread fixing part is provided with threads, and the diameter of the thread fixing part is smaller than that of the positioning part;
the axes of the clamping part, the buffer connecting part, the positioning part and the thread fixing part are coincided.
Preferably, the outer side end face of the thread fixing part is provided with a positioning groove, and the center of the positioning groove coincides with the axis of the thread fixing part and is used for accurately positioning the axis of the end part of the tool by a machine tool during clamping.
Preferably, a chamfer is arranged at the joint of the thread fixing part and the positioning part, so that a cylindrical component to be processed can enter from the thread fixing part and be sleeved on the positioning part conveniently.
Preferably, the surface of the positioning part is provided with a wear-resistant layer.
Preferably, the length of the buffer connecting part is any value between 10mm and 20 mm.
The utility model has the advantages that:
the utility model provides a helicopter parts processing is with plug type location frock, including clamping part, buffering connecting portion, location portion, the screw thread fixed part, and each part connects gradually the axis coincidence in order, when needing to carry out the clamping to the cylinder spare part, only need to lead to the core clamp of clamping part earlier and fix on the lathe, then go into the cover with the screw thread fixed part and establish the cylinder spare part on the surface of location portion, because the diameter of location portion is the same with the circle diameter in the cylinder spare part, make when the cylinder spare part is in on location portion, the axis of cylinder spare part coincides with the axis of location portion, and the axis of location portion coincides with lathe main shaft axis, thereby realize the purpose of locating the axis of cylinder spare part on the lathe main shaft axis, realize convenient location, and because location portion diameter is less than buffering connecting portion, make to have the step between location portion and the buffering connecting portion, the step is used for limiting the axial displacement of the cylindrical part, when the cylindrical part is arranged on the surface of the positioning part, the conical nut is matched on the thread fixing part, and the cylindrical part is fixed on the tool through the conical nut. To sum up, the utility model discloses have can be convenient carry out fixed position to cylinder spare part to in the surface of cylinder spare part carries out machining, reduces the clamping location degree of difficulty of cylinder spare part, the guarantee adopts the dimensional accuracy of helicopter part processing with plug type location frock clamping's cylinder spare part after machining.
Drawings
Fig. 1 is a schematic structural view of a core rod type positioning tool for machining a helicopter component according to the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
fig. 4 is the utility model provides a helicopter parts processing is with plug type location frock cooperation to the schematic structure view on the lathe.
In the figure:
1. a clamping portion; 2. a buffer connection part; 3. a positioning part; 4. a screw fixing portion; 5. a cylindrical member; 6. a movement clamp; 7. grinding heads; 8. a conical nut; 9. a terminal positioning device; 31. chamfering; 41. and (6) positioning a groove.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 4, the core rod type positioning tool for machining a helicopter component provided in the present embodiment includes a clamping portion 1, a buffer connecting portion 2, a positioning portion 3, and a thread fixing portion 4. Clamping part 1 is the cylinder structure, and the core through the lathe presss from both sides 6 clamping part 1 and is used for fixed frock for frock itself is fixed on the lathe, and the main shaft axis of lathe and the coincidence of the axis of clamping part 1. The buffer connecting part 2 is arranged at the end part of the clamping part 1 and is used for buffering and connecting the positioning part 3, and the cylindrical structure is adopted. The positioning part 3 is arranged at the end part of the buffer connecting part 2, the diameter of the positioning part is the same as the diameter of the inner circle of the cylindrical part 5 to be processed, the length of the positioning part is the same as the length of the cylindrical part 5 to be processed, and the diameter of the positioning part 3 is smaller than that of the buffer connecting part 2, so that the axial movement of the cylindrical part 5 can be limited by the step surface between the buffer connecting part 2 and the positioning part 3. The threaded fixing part 4 is arranged at the end part of the positioning part 3, the surface is provided with threads, the diameter of the threaded fixing part 4 is smaller than that of the positioning part 3, and after the cylindrical component 5 is positioned by the positioning part 3, the threaded fixing part 4 is arranged on the threaded fixing part 4 in a threaded connection mode by adopting a cone nut and is used for fastening the cylindrical component 5 so that the cylindrical component 5 is stably fixed on a tool. And the axes of the clamping part 1, the buffer connecting part 2, the positioning part 3 and the thread fixing part 4 are coincided, so that when the cylindrical part 5 is positioned on the surface of the positioning part 3, the axis of the cylindrical part 5 is coincided with the axis of the positioning part 3, the axis of the positioning part 3 is coincided with the axis of the clamping part 1, further, the axis of the cylindrical part 5 is coincided with the axis of a main shaft of a machine tool, and the positioning function of the cylindrical part 5 is realized.
In summary, the core rod type positioning tool for machining helicopter components provided by this embodiment includes a clamping portion 1, a buffer connecting portion 2, a positioning portion 3, and a thread fixing portion 4, and each portion is sequentially connected with an axis line in sequence and overlapped, when a cylindrical component needs to be clamped, the clamping portion 1 is firstly fixed on a machine tool through a machine clamp 6, and then the cylindrical component is sleeved on the surface of the positioning portion 3 through the thread fixing portion 4, because the diameter of the positioning portion 3 is the same as the inner circle diameter of the cylindrical component, when the cylindrical component is on the positioning portion 3, the axis line of the cylindrical component is overlapped with the axis line of the positioning portion 3, and the axis line of the positioning portion 3 is overlapped with the axis line of the machine tool spindle, thereby achieving the purpose of positioning the axis line of the cylindrical component on the axis line of the machine tool spindle, achieving convenient positioning, and because the diameter of the positioning portion 3 is, so that there is a step between the positioning portion 3 and the buffer connecting portion 2, the step being used to limit the axial displacement of the cylindrical part, after the cylindrical part is set on the surface of the positioning portion 3, the conical nut 8 is fitted onto the thread fixing portion 4, the cylindrical part is fixed on the tool by the conical nut 8, and then the cylindrical part is ground by the grinding head 7. To sum up, the utility model discloses have can be convenient carry out fixed position to cylinder spare part to in the surface of cylinder spare part carries out machining, reduces the clamping location degree of difficulty of cylinder spare part, the guarantee adopts the dimensional accuracy of helicopter part processing with plug type location frock clamping's cylinder spare part after machining.
In order to facilitate the positioning and fixing of the tail end of the tool, when the machine tool is used for machining cylindrical parts, the tail end of the tool cannot swing due to stress, furthermore, a positioning groove 41 is formed in the end face of the outer side of the thread fixing portion 4, and the center of the positioning groove 41 coincides with the axis of the thread fixing portion 4 and is used for accurately positioning the machine tool to the axis of the end portion of the tool during clamping. The end positioning device 9 (used for fixing the end of the tool and preventing the end of the workpiece from eccentric rotation, as shown in fig. 4) is a positioning device which is arranged on the machine tool and can rotate freely, the axis of the main shaft of the positioning device coincides with the axis of the main shaft of the machine tool, so that the positioning groove 41 is matched with the end positioning device 9 (the shape of the positioning groove 41 is the same as that of the end part of the end positioning device 9) to ensure that the axis of the end of the tool (the end part of the thread fixing part 4) coincides with the axis of the main shaft of the machine tool, thereby ensuring the coincidence of the axis of the cylindrical part and the axis of the main shaft of the.
In order to facilitate the cylindrical part to enter the positioning portion 3 from the thread fixing portion 4 conveniently and quickly, a chamfer 31 is provided at the joint of the thread fixing portion 4 and the positioning portion 3, so that the cylindrical part 5 to be processed can enter the positioning portion 3 from the thread fixing portion 4 conveniently and quickly. The chamfer 31 (compared with the case that a step exists between the chamfer 31 and the positioning part) is not provided, so that the cylindrical part can naturally enter the positioning part 3 without being blocked by the joint of the thread fixing part 4 and the positioning part 3, and the convenience of entering the cylindrical part from the thread fixing part 4 to the surface of the positioning part 3 is improved.
In order to prolong the service life of the core rod type positioning tool for machining the helicopter component, the surface of the positioning part 3 is further provided with a wear-resistant layer. By providing the surface of the positioning portion 3 with a wear-resistant layer (made by surface heat treatment). After the positioning part 3 is in friction fit with the cylindrical part for a long time, the surface of the positioning part is provided with the wear-resistant layer, so that the positioning part 3 can bear more friction and the size change influencing the processing and positioning precision of the cylindrical part is not easy to occur, and the service life of the core rod type positioning tool for processing the helicopter part is greatly prolonged.
In order to avoid that the machining precision is reduced because the core rod type positioning tool for machining the helicopter component is too long and bending occurs in the machining process, the length of the buffer connecting part 2 is any value between 10mm and 20 mm. The minimum length of the buffer connecting part 2 is set to be 10mm, so that the buffer connecting part 2 can provide enough blocking force for the cylindrical part to prevent the cylindrical part from axially moving in the machining process, and the setting of the length of 20mm as the upper limit can avoid the situation that the mandrel type positioning tool for machining the helicopter part is too long and stressed and bent due to the fact that the buffer connecting part 2 is too long.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (5)
1. The utility model provides a helicopter is plug type location frock for parts machining which characterized in that includes:
the clamping part (1) is of a cylindrical structure, and the clamping part (1) is clamped through a machine core clamp (6) of the machine tool and used for fixing the tool;
a buffer connection part (2) provided at an end of the clamping part (1);
the positioning part (3) is arranged at the end part of the buffer connecting part (2), the diameter of the positioning part is the same as the diameter of the inner circle of the cylindrical part (5) to be processed, the length of the positioning part is the same as the length of the cylindrical part (5) to be processed, and the diameter of the positioning part (3) is smaller than that of the buffer connecting part (2);
the thread fixing part (4) is arranged at the end part of the positioning part (3), threads are arranged on the surface of the thread fixing part, and the diameter of the thread fixing part (4) is smaller than that of the positioning part (3);
the axes of the clamping part (1), the buffer connecting part (2), the positioning part (3) and the thread fixing part (4) are coincided.
2. The helicopter component processing mandrel type positioning tool of claim 1, characterized by:
the outer side end face of the thread fixing portion (4) is provided with a positioning groove (41), the center of the positioning groove (41) coincides with the axis of the thread fixing portion (4) and is used for accurately positioning the axis of the end portion of the tool when the tool is clamped.
3. The helicopter component processing mandrel type positioning tool of claim 1, characterized by:
the thread fixing part (4) and the positioning part (3) are connected through a chamfer (31), so that a cylindrical part (5) to be processed can enter from the thread fixing part (4) and is sleeved on the positioning part (3).
4. The helicopter component processing mandrel type positioning tool of claim 1, characterized by:
and the surface of the positioning part (3) is provided with a wear-resistant layer.
5. The helicopter component processing mandrel type positioning tool of claim 1, characterized by:
the length of the buffer connecting part (2) is any value between 10mm and 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021479961.2U CN212665539U (en) | 2020-07-23 | 2020-07-23 | Core rod type positioning tool for machining helicopter components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021479961.2U CN212665539U (en) | 2020-07-23 | 2020-07-23 | Core rod type positioning tool for machining helicopter components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212665539U true CN212665539U (en) | 2021-03-09 |
Family
ID=74816784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021479961.2U Active CN212665539U (en) | 2020-07-23 | 2020-07-23 | Core rod type positioning tool for machining helicopter components |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212665539U (en) |
-
2020
- 2020-07-23 CN CN202021479961.2U patent/CN212665539U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A mandrel type positioning tooling for helicopter component processing Effective date of registration: 20211223 Granted publication date: 20210309 Pledgee: Jingdezhen branch of Bank of Communications Co.,Ltd. Pledgor: JIANGXI TIANYI AVIATION EQUIPMENT CO.,LTD. Registration number: Y2021980016255 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210309 Pledgee: Jingdezhen branch of Bank of Communications Co.,Ltd. Pledgor: JIANGXI TIANYI AVIATION EQUIPMENT CO.,LTD. Registration number: Y2021980016255 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |