CN212600315U - Fixture for processing annular casing of aero-engine with large length-diameter ratio - Google Patents
Fixture for processing annular casing of aero-engine with large length-diameter ratio Download PDFInfo
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- CN212600315U CN212600315U CN202022055201.5U CN202022055201U CN212600315U CN 212600315 U CN212600315 U CN 212600315U CN 202022055201 U CN202022055201 U CN 202022055201U CN 212600315 U CN212600315 U CN 212600315U
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Abstract
The utility model relates to a process anchor clamps for aeroengine annular cartridge receiver of big length-diameter ratio, including the chassis, the top on chassis is equipped with closing device, and this closing device can compress tightly the annular plate of annular cartridge receiver bottom and fix the top on chassis, the detachable fixedly connected with internal stay subassembly in top of chassis, the internal stay subassembly includes the bracer of polylith circumferential arrangement, and the lateral surface of this bracer can compress tightly the laminating on the inner wall at annular cartridge receiver top, the detachable fixedly connected with apron in top of internal stay subassembly, the bottom surface of apron can compress tightly the laminating on the top surface of annular cartridge receiver; the novel clamp is used for clamping the annular casing with a large length-diameter ratio on a five-axis linkage turning and milling composite machining center once, so that the machining of the inner surface and the outer surface of the annular casing can be finished, the vibration of a workpiece is small in the machining process, and the thin wall of the annular casing is not easy to deform.
Description
Technical Field
The utility model relates to an anchor clamps for the aviation processing, concretely relates to anchor clamps for annular cartridge receiver of aeroengine of big length-diameter ratio of processing.
Background
The annular casing with the large length-diameter ratio is a thin-wall precision part on an aeroengine, the size precision and form and position tolerance of the annular casing with the large length-diameter ratio have higher requirements, and the processing method of the annular casing with the large length-diameter ratio is common: and finishing corresponding working procedures of the annular casing on equipment such as a vertical lathe, a horizontal lathe, a machining center and the like.
The above processing method has the following disadvantages: the manufacturing cost is increased due to more processing procedures; in the processing process, the annular casing needs to be clamped on different equipment for processing, and the size precision and form and position tolerance of a product are not easy to guarantee by clamping for many times; the annular casing has a large length-diameter ratio, so that large vibration is easy to generate in the machining process, and machining deformation is easy to generate at the thin wall part of the annular casing, so that high requirements on the precision of equipment and the operation water average of workers are met.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is through the annular cartridge receiver anchor clamps for aeroengine of big length-diameter ratio of a processing, with this neotype anchor clamps at the annular cartridge receiver of the big length-diameter ratio of five-axis linkage turn-milling combined machining center last clamping, can accomplish the processing of annular cartridge receiver inside and outside profile, the work piece vibration is little in the course of working, and the thin wall department of annular cartridge receiver is difficult for producing the deformation.
For solving the technical problem, the utility model provides a pair of processing anchor clamps for aeroengine annular machine casket, which comprises a base, the top on chassis is equipped with closing device, and this closing device can compress tightly the annular plate of annular machine casket bottom and fix the top on chassis, the subassembly is propped in the top detachable fixedly connected with on chassis, the internal stay subassembly includes polylith circumference range's bracer, and the lateral surface of this bracer can compress tightly the laminating on the inner wall at annular machine casket top, the top detachable fixedly connected with apron of internal stay subassembly, the bottom surface of apron can compress tightly the laminating on the top surface of annular machine casket.
Furthermore, the pressing device is a plurality of groups of pressing plate assemblies which are arranged in the circumferential direction, each pressing plate assembly comprises a pressing plate, the middle of each pressing plate is fixedly connected with the corresponding chassis through a pressing screw, a supporting column is arranged at the top end of each chassis and below the tail of each pressing plate, and the head of each pressing plate is pressed on the top surface of the corresponding annular plate.
Furthermore, the inner supporting component comprises a T-shaped annular base, threaded through holes which are the same as the inner supporting component in number and correspond to the inner supporting component in position are formed in the inner wall of the top of the base, adjusting screws are matched with the threaded through holes in an internal thread mode, the supporting block is located on the outer side of the adjusting screws, screws penetrate through two ends of the supporting block, the supporting block is fixedly connected to the top surface of the bottom of the base through the inner supporting screws, a long waist-shaped guide through hole is formed in the top surface of the middle of the supporting block, a guide rod penetrates through the guide through hole, and the bottom of the guide rod is matched with the base in a threaded mode; loosening the inner supporting screw and rotating an adjusting screw rod, wherein the adjusting screw rod can push the supporting block so that the outer side surface of the supporting block is tightly pressed and attached to the inner wall of the top of the annular casing; the supporting block is fixed through the inner supporting screw, so that the outer side surface of the supporting block is always pressed and attached to the inner wall of the bottom of the annular casing without being influenced by processing vibration.
Further, the base and the chassis are fixedly connected through a plurality of circumferentially arranged chassis screws, and hollow pillars between the base and the chassis are sleeved on the chassis screws;
further, the hollow strut comprises a plurality of annular cushion blocks which are stacked up and down; the hollow support column of the structure enables the clamp to clamp annular casings with different length-diameter ratios.
Furthermore, the cover plate is fixedly connected with the base through a cover plate screw, a columnar positioning boss is arranged on the bottom surface of the cover plate, and the positioning boss can be matched into an upper port of the annular casing in a sliding manner; the positioning boss plays a positioning role and can increase the strength of the top of the annular casing to a certain degree.
Furthermore, the supporting block comprises a fan-shaped body block, and an elastic damping layer is arranged on the outer side surface of the body block; the elastic damping layer can further reduce workpiece vibration.
The utility model has the advantages that: the novel clamp is used for clamping the annular casing with a large length-diameter ratio on a five-axis linkage turning and milling composite machining center once, so that the machining of the inner surface and the outer surface of the annular casing can be finished, the vibration of a workpiece is small in the machining process, and the thin wall of the annular casing is not easy to deform; when the outer profile of the annular casing is processed, the pressing device presses and fixes the annular plate at the bottom end of the annular casing at the top end of the chassis, the outer side surface of the supporting block is pressed and attached to the inner wall of the top of the annular casing, and the bottom surface of the cover plate is pressed and attached to the top surface of the annular casing, so that the annular casing is firmly clamped, the strength of the thin wall is good, and a workpiece is not easy to vibrate and deform in the processing process; the processing of the inner and outer surfaces of the annular casing can be finished by only one-time clamping, so that no clamping accumulated error exists, and the product qualification rate is high.
Drawings
In order to clearly illustrate the innovative principles of the invention and its technical advantages compared to the prior art clamps, a possible embodiment is illustrated below by way of non-limiting example applying said principles, with the aid of the accompanying drawings. In the figure:
fig. 1 is a top view of a clamp for processing an annular casing of an aircraft engine with a large length-diameter ratio, provided by an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a perspective view of FIG. 1;
FIG. 4 is a perspective view of FIG. 1 with the cover plate and annular case removed;
fig. 5 is a perspective view of the brace.
Detailed Description
Example 1
As shown in fig. 1-5, the utility model provides a pair of processing anchor clamps for aeroengine annular machine casket, including chassis 1, the top on chassis 1 is equipped with closing device 2, and this closing device 2 can compress tightly the annular plate H of 3 bottoms of annular machine casket and fix the top at chassis 1, the top detachable fixedly connected with internal stay subassembly 4 on chassis 1, internal stay subassembly 4 includes the bracer 6 of four circumference arrangements, and the lateral surface 7 of this bracer 6 can compress tightly the laminating on the inner wall at annular machine casket 3 top, the top detachable fixedly connected with apron 8 of internal stay subassembly 4, the bottom surface of apron 8 can compress tightly the laminating on the top surface of annular machine casket 3.
Preferably, the pressing device 2 is eight groups of pressing plate assemblies arranged circumferentially, each pressing plate assembly comprises a pressing plate 9, the middle part of each pressing plate 9 is fixedly connected with the chassis 1 through a pressing screw 10, a support 11 is arranged at the top end of the chassis 1 and below the tail part of the pressing plate 9, and the head part of each pressing plate 9 is pressed on the top surface of the annular plate H; the pressing device 2 can also be a plurality of horizontal quick clamps or consist of a pressing ring and screws.
The inner support assembly 4 comprises a T-shaped annular base 20, four threaded through holes corresponding to the inner support assembly 4 are formed in the inner wall of the top of the base 20, an adjusting screw 21 is in threaded fit with the threaded through holes, the support block 6 is located on the outer side of the adjusting screw 21, inner support screws 22 penetrate through two ends of the support block 6, the support block 6 is fixedly connected to the top surface of the bottom of the base 20 through the inner support screws 22, a long waist-shaped guide through hole 23 is formed in the top surface of the middle of the support block 6, a guide rod 24 penetrates through the guide through hole 23, and the bottom of the guide rod 24 is in threaded fit with the base 20;
the inner supporting screw 22 is unscrewed, and the adjusting screw 21 is rotated, and the adjusting screw 21 can push the supporting block 6, so that the outer side surface 7 of the supporting block 6 is tightly pressed and attached on the inner wall of the top of the annular casing 3.
The base 20 and the chassis 1 are fixedly connected through a plurality of circumferentially arranged chassis screws 13, and the chassis screws 13 are sleeved with hollow pillars 12 between the base 20 and the chassis 1.
The hollow strut 12 comprises three annular blocks stacked one above the other.
Preferably, the cover plate 8 is fixedly connected with the base 20 through a cover plate screw 25, and a columnar positioning boss is arranged on the bottom surface of the cover plate 8 and can be in sliding fit with the upper port of the annular casing 3; the cover plate structure can also be: the bottom surface of the cover plate 8 is provided with a cylindrical screwing part, the screwing part is in threaded fit in the upper port of the base 20, and the cover plate 8 is rotated to enable the bottom surface of the cover plate 8 to be tightly pressed and attached to the top surface of the annular casing 3.
The supporting block 6 comprises a fan-shaped body block 5, an elastic damping layer Z is fixedly bonded on the outer side face of the body block 5, and the damping layer is made of rubber.
Example 2
According to the clamp for processing the annular casing of the aero-engine with the large length-diameter ratio in the embodiment 1, the method for processing the inner and outer molded surfaces of the annular casing with the large length-diameter ratio comprises the following steps:
step 1, fixing a chassis 1 on a chuck of a five-axis linkage turn-milling composite machining center, pressing and fixing an annular plate H on the chassis 1 by using a pressing device 2, and machining an inner profile of an annular casing 3;
and 4, disassembling the cover plate 8 and the inner support assembly 4 to remove the annular casing 3.
The novel clamp is used for clamping the annular casing 3 with a large length-diameter ratio on a five-axis linkage turning and milling composite machining center once, so that the machining of the inner and outer molded surfaces of the annular casing 3 can be finished, the vibration of a workpiece is small in the machining process, and the thin wall of the annular casing 3 is not easy to deform; when the outer profile of the annular casing 3 is processed, the pressing device 2 presses and fixes the annular plate H at the bottom end of the annular casing 3 at the top end of the chassis 1, the outer side surface 7 of the supporting block 6 is pressed and attached to the inner wall of the top of the annular casing 3, and the bottom surface of the cover plate 8 is pressed and attached to the top surface of the annular casing 3, so that the annular casing 3 is firmly clamped, the strength of a thin wall is good, and a workpiece is not easy to vibrate and deform in the processing process; the processing of the inner and outer molded surfaces of the annular casing 3 can be completed by only one clamping, so that no clamping accumulated error exists, and the product qualification rate is high.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The annular aeroengine casing clamp for processing the large length-diameter ratio comprises a chassis (1) and is characterized in that: the top of chassis (1) is equipped with closing device (2), and this closing device (2) can compress tightly the annular plate (H) of annular machine casket (3) bottom and fix the top in chassis (1), bracing subassembly (4) in the top detachable fixedly connected with of chassis (1), bracing subassembly (4) include bracer (6) that polylith circumference was arranged, and lateral surface (7) of this bracer (6) can compress tightly the laminating on the inner wall at annular machine casket (3) top, the top detachable fixedly connected with apron (8) of bracing subassembly (4) in, the bottom surface of apron (8) can compress tightly the laminating on the top surface of annular machine casket (3).
2. The clamp of claim 1, wherein: the pressing device (2) is a plurality of groups of pressing plate assemblies which are arranged in the circumferential direction, each pressing plate assembly comprises a pressing plate (9), the middle of each pressing plate (9) is fixedly connected with the chassis (1) through a pressing screw (10), a supporting column (11) is arranged at the top end of the chassis (1) and below the tail portion of each pressing plate (9), and the head portion of each pressing plate (9) is pressed on the top surface of the annular plate (H).
3. The clamp of claim 1, wherein: the inner support component (4) comprises a T-shaped annular base (20), threaded through holes which are the same as the inner support component (4) in number and correspond to the inner support component in position are formed in the inner wall of the top of the base (20), adjusting screws (21) are matched with the threaded through holes in an internal thread manner, the support block (6) is located on the outer side of the adjusting screws (21), inner support screws (22) penetrate through two ends of the support block (6), the support block (6) is fixedly connected to the top surface of the bottom of the base (20) through the inner support screws (22), a long waist-shaped guide through hole (23) is formed in the top surface of the middle of the support block (6), a guide rod (24) penetrates through the guide through hole (23), and the bottom of the guide rod (24) is matched with the base (20) in a threaded manner;
the inner supporting screw (22) is unscrewed, the adjusting screw rod (21) is rotated, and the supporting block (6) can be pushed by the adjusting screw rod (21) so that the outer side surface (7) of the supporting block (6) is tightly pressed and attached to the inner wall of the top of the annular casing (3).
4. The clamp of claim 3, wherein: the base (20) is fixedly connected with the chassis (1) through a plurality of circumferentially arranged chassis screws (13), and the chassis screws (13) are sleeved with hollow pillars (12) between the base (20) and the chassis (1).
5. The clamp of claim 4, wherein: the hollow post (12) comprises a plurality of annular cushion blocks stacked one on top of the other.
6. The clamp of claim 3, wherein: the cover plate (8) is fixedly connected with the base (20) through a cover plate screw (25), a columnar positioning boss is arranged on the bottom surface of the cover plate (8), and the positioning boss can be in sliding fit with the upper port of the annular casing (3).
7. The clamp of claim 1, wherein: the supporting block (6) comprises a fan-shaped body block (5), and an elastic damping layer (Z) is arranged on the outer side surface of the body block (5).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020217773811 | 2020-08-20 | ||
| CN202021777381 | 2020-08-20 |
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| Publication Number | Publication Date |
|---|---|
| CN212600315U true CN212600315U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022055201.5U Active CN212600315U (en) | 2020-08-20 | 2020-09-18 | Fixture for processing annular casing of aero-engine with large length-diameter ratio |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111975406A (en) * | 2020-08-20 | 2020-11-24 | 杭州天扬机械有限公司 | Fixture for processing annular casing of aero-engine with large length-diameter ratio |
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2020
- 2020-09-18 CN CN202022055201.5U patent/CN212600315U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111975406A (en) * | 2020-08-20 | 2020-11-24 | 杭州天扬机械有限公司 | Fixture for processing annular casing of aero-engine with large length-diameter ratio |
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