CN221159417U - Stress ring machining center clamp - Google Patents
Stress ring machining center clamp Download PDFInfo
- Publication number
- CN221159417U CN221159417U CN202322764685.4U CN202322764685U CN221159417U CN 221159417 U CN221159417 U CN 221159417U CN 202322764685 U CN202322764685 U CN 202322764685U CN 221159417 U CN221159417 U CN 221159417U
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- Prior art keywords
- annular body
- base
- machining center
- face
- stress ring
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Links
- 210000001503 joint Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 17
- 238000003754 machining Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to the technical field of stress ring processing and discloses a clamp for a stress ring processing center, which comprises a base, a boss and a pressing plate, wherein the base is used for placing an annular body, and a groove for accommodating a lug is formed in the base; the boss is fixed on the base, and the diameter of the boss is smaller than or equal to the inner diameter of the annular body; the number of the pressing plates is multiple, one end of each pressing plate is movably mounted on the base through a bolt, and the other end of each pressing plate extends to the end face of the annular body and abuts against the end face of the annular body. According to the utility model, the boss is used for supporting and positioning the inner hole of the annular body, and the pressing plate is adopted for pressing and processing in the processing process of the annular body, so that the processing size of the part can be well ensured; in addition, the processing process has no external force action on the inner hole of the annular body, thereby ensuring that the inner hole is not deformed in the processing process.
Description
Technical Field
The utility model relates to the technical field of stress ring machining and discloses a clamp for a stress ring machining center.
Background
The structure of the stress ring used in the aeroengine is shown in figure 1, the conventionally used stress ring raw material is stainless steel high bar material of 0Cr17Ni4Cu4Nb, the bar material is changed into a ring material after rough machining, and then finish machining forming is carried out. The stress ring is machined into an annular ring when reaching the machining center, and the machining center needs to mill a plurality of radial grooves on two end faces of the annular ring so as to form corresponding lug structures on each end face.
However, the annular ring cannot be clamped or supported by three claws in the conventional processing process, so that the deformation of the size of the hole in the processed stress ring is extremely easy to be out of tolerance, and the tolerance of the size of 1mm to be processed is not easy to be ensured; in addition, in the conventional machining process, after the first end face is machined, no legal angle exists when the back side end face is machined, and the sizes of all parts of the back side end face cannot be guaranteed.
Disclosure of utility model
The utility model aims to provide a clamp for a stress ring machining center, which supports and positions an inner hole of an annular body through a boss, and the part machining size can be well ensured by adopting a pressing plate for pressing and machining in the annular body machining process; in addition, the processing process has no external force action on the inner hole of the annular body, thereby ensuring that the inner hole is not deformed in the processing process.
In order to achieve the technical effects, the technical scheme adopted by the utility model is as follows:
The stress ring machining center clamp comprises an annular body, wherein a plurality of convex blocks which are uniformly distributed in the circumferential direction are arranged on two end faces of the annular body, and the convex blocks axially protrude out of the end face of the annular body along the annular body; the machining center fixture includes:
the base is used for placing the annular body, and a groove for accommodating the convex block is formed in the base;
The boss is fixed on the base, and the diameter of the boss is smaller than or equal to the inner diameter of the annular body;
The number of the pressing plates is multiple, one end of each pressing plate is movably mounted on the base through a bolt, and the other end of each pressing plate extends to the end face of the annular body and abuts against the end face of the annular body.
Further, the groove depth of the groove is larger than or equal to the protruding height of the protruding block, and the circumferential width of the groove is equal to the circumferential width of the protruding block.
Further, two positioning holes which are in central symmetry are also formed in one end face of the annular body, and positioning pins matched with the positioning holes are arranged on the base.
Further, a mounting hole is formed in the base at the position where the positioning pin is arranged, one end of the positioning pin is inserted into the mounting hole, and the outer diameter of the end of the positioning pin inserted into the mounting hole is equal to the diameter of the mounting hole.
Further, the number of the protruding blocks on each end face of the annular body is eight, the number of the pressing plates is also eight, the pressing plates are uniformly distributed on the periphery of the protruding blocks in the circumferential direction, and the contact position of each pressing plate and the annular body is located between two adjacent protruding block positions.
Further, the height of the boss is smaller than or equal to the thickness of the annular body.
Further, the outer wall of the bolt is provided with a compressed spring, and the spring is positioned between the head of the bolt and the pressing plate.
Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the boss is used for supporting and positioning the inner hole of the annular body, and the pressing plate is adopted for pressing and processing in the processing process of the annular body, so that the processing size of the part can be well ensured; in addition, the processing process has no external force action on the inner hole of the annular body, thereby ensuring that the inner hole is not deformed in the processing process.
Drawings
FIG. 1 is a schematic structural view of a stress ring;
FIG. 2 is a schematic diagram of a stress ring machining center fixture in an embodiment;
FIG. 3 is a schematic view showing a mounting structure of a pressure plate on a base in the embodiment;
FIG. 4 is a schematic view of a mounting structure of a stress ring on a base in an embodiment;
wherein, 1, a ring body; 2. a bump; 3. a base; 4. a groove; 5. a boss; 6. a pressing plate; 7. a bolt; 8. positioning holes; 9. a mounting hole; 10. and (3) a spring.
Detailed Description
The present utility model will be described in further detail with reference to the following examples and drawings. It should not be construed that the scope of the above subject matter of the present utility model is limited to the following embodiments, and all techniques realized based on the present utility model are within the scope of the present utility model.
Examples
Referring to fig. 1-4, the stress ring machining center fixture comprises a ring body 1, wherein a plurality of convex blocks 2 which are uniformly distributed in the circumferential direction are arranged on two end surfaces of the ring body 1, and the convex blocks 2 axially protrude out of the end surface of the ring body 1 along the ring body 1; the machining center fixture includes:
A base 3, wherein the base 3 is used for placing the annular body 1, and a groove 4 for accommodating the protruding block 2 is arranged on the base 3;
the boss 5 is fixed on the base 3, and the diameter of the boss 5 is smaller than or equal to the inner diameter of the annular body 1;
The number of the pressing plates 6 is multiple, one end of each pressing plate 6 is movably mounted on the base 3 through a bolt 7, and the other end of each pressing plate 6 extends to the end face of the annular body 1 and abuts against the end face of the annular body 1.
In this embodiment, in the process of processing the bumps 2 on the two side end surfaces of the stress ring, the annular ring without the bumps 2 is firstly placed on the base 3, so that the inner hole of the annular ring is sleeved outside the boss 5, positioning of the annular ring and supporting of the inner hole are realized, and the inner hole is ensured to be difficult to deform. Then, the annular ring is pressed and fixed on the base 3 by using a pressing plate 6, and a radial groove is milled on the exposed end face of the annular ring by using processing equipment to form a convex block 2 of the exposed end face; after the processing of the protruding block 2 with the exposed end surface is completed, the overturning annular ring is sleeved outside the boss 5 again, then is pressed by the pressing plate 6, a radial groove is milled on the other end surface (the back side end surface) to form an annular body 1 with the protruding block 2 at the two end surfaces, and the processing size of the part can be well ensured due to the pressing and holding processing of the pressing plate 6 adopted in the processing process of the annular body 1 in the embodiment; in addition, the processing process has no external force on the inner hole of the annular body 1, thereby ensuring that the inner hole is not deformed in the processing process.
In this embodiment, the depth of the groove 4 is greater than or equal to the protruding height of the bump 2, the circumferential width of the groove 4 is equal to the circumferential width of the bump 2, and the groove 4 and the processed end face bump 2 can be matched to perform positioning, so that the processing and positioning of the backside end face are facilitated, and the accuracy of the processing size of the whole annular body 1 is ensured.
In this embodiment, two positioning holes 8 that are symmetrical with respect to the axis of the annular body 1 are further provided on one end surface of the annular body 1, and positioning pins that are matched with the positioning holes 8 are provided on the base 3. When the first end face is machined, the positioning holes 8 are drilled in the positions, corresponding to the positioning pins, on the first end face, so that the positioning of the annular ring can be quickly realized after the annular ring is turned over, and the angular positioning during machining of the back side end face is quickly realized.
The positioning hole 8 can be a through hole or a blind hole. When the locating hole 8 is a blind hole, the base 3 is provided with a mounting hole 9 at the position where the locating pin is arranged, one end of the locating pin is inserted into the mounting hole 9, and the outer diameter of the end of the locating pin inserted into the mounting hole 9 is equal to the diameter of the mounting hole 9. The positioning pin in this embodiment is inserted into the mounting hole 9 in an inserting manner, and the positioning pin is not inserted into the mounting hole 9 when the first end face is machined, so that the machining of the first end face is not affected. When the back side end face of the first end face is processed, the positioning pin is inserted into the mounting hole 9, then the positioning hole 8 on the annular ring is aligned with the positioning pin, and the annular ring is sleeved on the outer side of the boss 5.
In this embodiment, the number of the protrusions 2 on each end surface of the annular body 1 is eight, and the number of the pressing plates 6 is also eight, the pressing plates 6 are uniformly distributed on the periphery of the protrusions 2 in the circumferential direction, and the contact position of each pressing plate 6 and the annular body 1 is located between two adjacent protrusions 2. In the process of processing the convex block 2 on the annular ring, four pressing plates 6 are used for pressing symmetrical four corners of the annular ring, four radial grooves are milled on the annular ring, then the other four pressing plates 6 are used for pressing the milled four radial grooves, the original symmetrical four pressing plates 6 are loosened, and the four radial grooves are left after processing and positioning holes 8 are drilled. The processing of the back side end surface is the same, and the positioning pin is only required to be inserted into the mounting hole 9 and clamped and processed according to the first end surface processing mode.
In this embodiment, the height of the boss 5 is less than or equal to the thickness of the annular body 1, so that the boss 5 can be avoided from being damaged in the groove milling process, and the supporting and positioning effects of the boss 5 on the inner ring of the annular body 1 are ensured.
In this embodiment, the outer wall of the bolt 7 is provided with a pressed spring 10, the spring 10 is located between the head of the bolt 7 and the pressing plate 6, the pressing force of the pressing plate 6 on the annular ring in the processing process is ensured through the pressed spring 10, and when the pressing force is too small, the pressing force of the spring 10 on the pressing plate 6 can be adjusted through rotating the bolt 7, so that the pressing effect of the pressing plate 6 on the annular ring in the processing process is ensured.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (7)
1. The clamp for the stress ring machining center is characterized in that the stress ring comprises an annular body (1), a plurality of convex blocks (2) which are uniformly distributed in the circumferential direction are arranged on two end faces of the annular body (1), and the convex blocks (2) axially protrude out of the end face of the annular body (1) along the annular body (1); the machining center fixture is characterized by comprising:
The base (3) is used for placing the annular body (1), and the base (3) is provided with a groove (4) for accommodating the convex block (2);
the boss (5) is fixed on the base (3), and the diameter of the boss (5) is smaller than or equal to the inner diameter of the annular body (1);
The number of the pressing plates (6) is multiple, one end of each pressing plate (6) is movably mounted on the base (3) through a bolt (7), and the other end of each pressing plate (6) extends to the end face of the annular body (1) and is in butt joint with the end face of the annular body (1).
2. The stress ring machining center jig according to claim 1, wherein the groove depth of the groove (4) is equal to or greater than the protruding height of the bump (2), and the circumferential width of the groove (4) is equal to the circumferential width of the bump (2).
3. The clamp for the stress ring machining center according to claim 1, wherein two positioning holes (8) which are symmetrical in center are further formed in one end face of the annular body (1), and positioning pins matched with the positioning holes (8) are arranged on the base (3).
4. The clamp for the stress ring machining center according to claim 3, wherein a mounting hole (9) is formed in the base (3) at a position where a positioning pin is arranged, one end of the positioning pin is inserted into the mounting hole (9), and the outer diameter of the end of the positioning pin inserted into the mounting hole (9) is equal to the diameter of the mounting hole (9).
5. The clamp of the stress ring machining center according to claim 1, wherein the number of the projections (2) of each end face of the annular body (1) is eight, the number of the pressing plates (6) is eight, the pressing plates (6) are uniformly distributed on the periphery of the projections (2) in the circumferential direction, and the contact position of each pressing plate (6) with the annular body (1) is located between two adjacent projections (2).
6. The clamp of any one of claims 1 to 5, wherein the height of the boss (5) is equal to or less than the thickness of the annular body (1).
7. The clamp of the stress ring machining center according to any one of claims 1 to 5, characterized in that the outer wall of the bolt (7) is provided with a spring (10) under pressure, the spring (10) being located between the head of the bolt (7) and the pressure plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322764685.4U CN221159417U (en) | 2023-10-13 | 2023-10-13 | Stress ring machining center clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322764685.4U CN221159417U (en) | 2023-10-13 | 2023-10-13 | Stress ring machining center clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221159417U true CN221159417U (en) | 2024-06-18 |
Family
ID=91531670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322764685.4U Active CN221159417U (en) | 2023-10-13 | 2023-10-13 | Stress ring machining center clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221159417U (en) |
-
2023
- 2023-10-13 CN CN202322764685.4U patent/CN221159417U/en active Active
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