CN212600316U - Fixture for machining annular casing of aircraft engine - Google Patents
Fixture for machining annular casing of aircraft engine Download PDFInfo
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- CN212600316U CN212600316U CN202022067251.5U CN202022067251U CN212600316U CN 212600316 U CN212600316 U CN 212600316U CN 202022067251 U CN202022067251 U CN 202022067251U CN 212600316 U CN212600316 U CN 212600316U
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Abstract
The utility model relates to a processing aeroengine annular anchor clamps for cartridge receiver, 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 on the top of chassis, detachable fixedly connected with first, two internal stay subassemblies in proper order on chassis, first internal stay subassembly includes the first bracer of polylith circumference arrangement, and the lateral surface of this first bracer can compress tightly the laminating on the inner wall of annular cartridge receiver bottom, the second internal stay subassembly includes the second bracer of polylith circumference arrangement, and the lateral surface of this second bracer can compress tightly the laminating on the inner wall in annular cartridge receiver middle part, the detachable fixedly connected with apron in the top of second internal stay subassembly; the novel clamp is used for clamping the annular casing 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 completed, and the thin wall of the annular casing is not easy to deform in the machining process.
Description
Technical Field
The utility model relates to an anchor clamps for the aviation processing, concretely relates to processing anchor clamps for aeroengine annular cartridge receiver.
Background
The annular casing is a thin-wall precision part on an aeroengine, the size precision and form and position tolerance of the annular casing have higher requirements, and a common processing method of the annular casing comprises the following steps: 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; in the processing process, the thin wall of the annular casing is easy to generate large deformation, so that high requirements on the precision of equipment and the operation level of workers are met.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is through an anchor clamps for processing aeroengine annular machine casket, with this novel anchor clamps at five-axis linkage turn-milling composite machining center last clamping annular machine casket, can accomplish the processing of annular machine casket inside and outside profile, in the course of working, the thin wall department of annular machine casket 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 fix the annular plate of annular machine casket bottom on the top on chassis, the upper end on chassis is detachable fixedly connected with first, two internal stay subassemblies in proper order, first internal stay subassembly includes the first bracer of polylith circumference range, and the lateral surface of this first bracer can compress tightly the laminating on the inner wall of annular machine casket bottom, the second internal stay subassembly includes the second bracer of polylith circumference range, and the lateral surface of this second bracer can compress tightly the laminating on the inner wall at annular machine casket middle part, the upper end of second internal stay subassembly is equipped with the apron subassembly including the apron, 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, a supporting column is arranged on the bottom surface of the tail portion of each pressing plate, a pressing plate screw penetrates through the middle of each pressing plate, the pressing plate screws are matched on the chassis in a threaded mode, and the pressing plate screws are screwed down to enable the bottom surface of the head portion of each pressing plate to be tightly pressed and attached to the top surface of the annular plate.
Furthermore, the first inner support assembly comprises a hollow columnar base, the base is fixed on the top surface of the chassis through screws, a plurality of threaded through holes are uniformly formed in the inner wall of the base in the circumferential direction, a first adjusting screw is matched with the threaded through holes in an internal thread manner, the first support block is located on the outer side of the first adjusting screw, a cushion block is arranged between the first support block and the chassis, the first support block and the cushion block are fixed on the chassis through first support block screws, a long waist-shaped first guide through hole is formed in the top surface of the middle of the first support block, a first guide rod is matched between the inner side surfaces of the first guide through holes in a sliding manner, and the bottom of the first guide rod is matched on the chassis in a threaded manner;
the screw is unscrewed and a first adjusting screw rod is rotationally adjusted, the first adjusting screw rod can push the first supporting block,
so that the outer side surface of the first supporting block is tightly pressed and attached to the inner wall of the bottom of the annular casing; the first supporting block is fixed through the first supporting block screw, so that the outer side surface of the first supporting block is always pressed and attached to the inner wall of the bottom of the annular casing without being influenced by processing vibration.
Furthermore, the second internal support component comprises a T-shaped annular base, the base is fixed on the top surface of the base through a second support block screw, a plurality of threaded through holes are uniformly distributed on the inner wall of the top of the base along the circumference, a second adjusting screw is matched with the threaded through holes in a threaded manner, the second support block is positioned on the outer side of the second adjusting screw and fixed on the top surface of the bottom of the base through screws, a long waist-shaped second guide through hole is formed in the top surface of the middle part of the second support block, a second guide rod is matched between the inner side surfaces of the second guide through holes in a sliding manner, and the bottom of the second guide rod is matched on the base in a threaded manner;
loosening the screw and rotating and adjusting a second adjusting screw rod, wherein the second adjusting screw rod can push a second supporting block so that the outer side surface of the second supporting block is tightly pressed and attached to the inner wall of the middle part of the annular casing; the second supporting block is fixed through the second supporting block screw, so that the outer side surface of the second supporting block is always pressed and attached to the inner wall of the middle part of the annular casing and is not influenced by processing vibration.
Furthermore, a plurality of circumferentially arranged middle screws penetrate through the middle part of the cover plate, the middle screws are in threaded fit with the base, the middle screws are screwed down to enable the bottom surface of the cover plate to be tightly pressed and attached to the top surface of the annular casing, and a columnar positioning boss is arranged on the bottom surface of the cover plate and can be in sliding fit with the upper port of the annular casing; the annular casing is pressed by the cover plate to increase the strength of the thin wall, and the positioning boss plays a positioning role and can further increase the strength of the thin wall.
The utility model has the advantages that: the novel clamp is used for clamping the annular casing on a five-axis linkage turning and milling composite machining center once, so that the machining of the inner and outer profiles of the annular casing can be finished, and the thin wall of the annular casing is not easy to deform in the machining process; when the outer profile of the annular casing is processed, the outer side surface of the first supporting block is tightly attached to the inner wall of the bottom of the annular casing, the outer side surface of the second supporting block is tightly attached to the inner wall of the middle part of the annular casing, and the bottom surface of the cover plate is tightly attached to the top surface of the annular casing, so that the thin-wall part of the annular casing has good strength and is not easy to generate processing deformation; 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 cross-sectional view of a clamp for machining an annular casing of an aircraft engine according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 4 is a cross-sectional view of the annular case;
FIG. 5 is a perspective view of FIG. 4;
FIG. 6 is a top view of FIG. 1 with the annular case and cover plate removed;
FIG. 7 is a perspective view of FIG. 6;
FIG. 8 is a cross-sectional view taken along line A-A of FIG. 6;
FIG. 9 is a perspective view of FIG. 8;
FIG. 10 is a perspective view of the second brace bar;
fig. 11 is a perspective view of the first brace.
Detailed Description
Example 1
Referring to fig. 1, the utility model provides a clamp for processing an annular casing of an aircraft engine, which comprises a chassis 1, wherein a compressing device 2 is arranged at the top end of the chassis 1, the compressing device 2 can fix an annular plate H at the bottom end of the annular casing 3 at the top end of the chassis 1, a first inner supporting component 4 and a second inner supporting component 5 are sequentially detachably and fixedly connected at the upper end of the chassis 1, the first inner supporting component 4 comprises four first supporting blocks 6 which are circumferentially arranged, the outer side surfaces 7 of the first supporting blocks 6 can be tightly pressed and attached on an inner wall N at the bottom of the annular casing 3, the second inner supporting component 5 comprises four second supporting blocks 8 which are circumferentially arranged, the outer side surfaces 9 of the second supporting blocks 8 can be tightly pressed and attached on a middle inner wall N-1 at the middle part of the annular casing 3, a cover plate component comprising a cover plate is arranged at the upper end of the second inner supporting component, the bottom surface of the cover plate can be tightly pressed and attached to the top surface of the annular casing.
Preferably, as shown in fig. 8, the pressing device 2 is six sets of pressing plate assemblies arranged circumferentially, each pressing plate assembly includes a pressing plate 11, a supporting column 12 is arranged on the bottom surface of the tail of the pressing plate 11, a pressing plate screw 13 penetrates through the middle of the pressing plate 11, the pressing plate screw 13 is in threaded fit with the chassis 1, and the pressing plate screw 13 is screwed down to enable the bottom surface of the head of the pressing plate 11 to be pressed and attached to the top surface of the annular plate H; the pressing device 2 can also be a plurality of horizontal quick clamps.
As shown in fig. 1, 3 and 8, the first inner support assembly 4 includes a hollow cylindrical base 14, the base 14 is fixed on the top surface of the chassis 1 by screws, four threaded through holes are uniformly distributed on the inner wall of the base 14 along the circumference, a first adjusting screw 15 is matched with the threaded through holes in an internal thread manner, the first support block 6 is located on the outer side of the first adjusting screw 15, cushion blocks 16 located between the first support block 6 and the chassis 1 are respectively arranged on both sides of the first support block 6, the first support block 6 and the cushion blocks 16 are fixed on the chassis 1 by first support block screws 19, a long kidney-shaped first guide through hole 17 is formed on the top surface of the middle part of the first support block 6, a first guide rod 18 is matched between the inner side surfaces of the first guide through hole 17 in a sliding manner, and the bottom of the first guide rod 18 is matched on the chassis 1 in a threaded manner;
loosening the first supporting block screw 19 and rotationally adjusting the first adjusting screw 15, the first adjusting screw 15 can push
The first supporting block 6 is used for tightly pressing and attaching the outer side surface 7 of the first supporting block 6 on the inner wall N at the bottom of the annular casing 3.
The second inner support assembly 5 comprises a T-shaped annular base 20, the base 20 is fixed on the top surface of the base 14 through screws, four threaded through holes are uniformly formed in the inner wall of the top of the base 20 along the circumference, a second adjusting screw 21 is matched with the threaded through holes in an internal thread manner, the second support block 8 is positioned on the outer side of the second adjusting screw 21 and fixed on the top surface of the bottom of the base 20 through second support block screws 22, a long waist-shaped second guide through hole 23 is formed in the top surface of the middle of the second support block 8, a second guide rod 24 is matched between the inner side surfaces of the second guide through holes 23 in a sliding manner, and the bottom of the second guide rod 24 is in threaded fit with the base 20;
and loosening the second supporting block screw 22 and rotatably adjusting a second adjusting screw 21, wherein the second adjusting screw 21 can push the second supporting block 8, so that the outer side surface 9 of the second supporting block 8 is tightly pressed and attached to the inner wall N-1 in the middle of the annular casing 3.
Preferably, a plurality of circumferentially arranged middle screws 25 are arranged in the middle of the cover plate 10 in a penetrating manner, the middle screws 25 are in threaded fit with the base 20, the middle screws 25 are screwed down to enable the bottom surface of the cover plate 10 to be tightly pressed and attached to the top surface of the annular casing 3, and a columnar positioning boss is arranged on the bottom surface of the cover plate 10 and can be slidably fitted into the upper port of the annular casing 3; the structure of the cover plate component can also be as follows: the lower end of the cover plate 10 is provided with a screwing part which is in threaded fit with the upper port of the base 20.
Example 2
According to the clamp for processing the annular casing of the aero-engine in the embodiment 1, the method for processing the inner and outer profiles of the annular casing comprises the following steps:
step 2, fixing the first inner support assembly 4 on the chassis 1, loosening the first support block screw 19 and rotationally adjusting the first adjusting screw 15, wherein the first adjusting screw 15 pushes the first support block 6, so that the first support block outer side surface 7 of the first support block 6 is tightly pressed and attached to the bottom inner wall N at the bottom of the annular casing 3, and the first support block screw 19 is screwed;
and 5, disassembling the cover plate 10 and the second internal support assembly 5 to remove the annular casing 3.
The novel clamp is used for clamping the annular casing 3 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 completed, and the thin wall of the annular casing 3 is not easy to deform in the machining process; when the outer profile of the annular casing 3 is processed, the outer side surface 7 of the first supporting block 6 is tightly pressed and attached to the middle inner wall N-1 at the bottom of the annular casing 3, the outer side surface 9 of the second supporting block 8 is tightly pressed and attached to the middle inner wall N-1 at the middle of the annular casing 3, and the bottom surface of the cover plate 10 is tightly pressed and attached to the top surface of the annular casing 3, so that the thin-wall part of the annular casing has good strength and is not easy to generate processing deformation; 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 (5)
1. Processing annular anchor clamps for cartridge receiver of aeroengine, including chassis (1), its characterized in that: the top end of the chassis (1) is provided with a pressing device (2), the pressing device (2) can fix an annular plate (H) at the bottom end of an annular casing (3) at the top end of the chassis (1), the upper end of the chassis (1) is sequentially detachably and fixedly connected with a first inner supporting component and a second inner supporting component (4, 5), the first inner supporting component (4) comprises a plurality of first supporting blocks (6) which are arranged in the circumferential direction, the outer side surfaces (7) of the first supporting blocks (6) can be pressed and attached to the inner wall (N) at the bottom of the annular casing (3), the second inner supporting component (5) comprises a plurality of second supporting blocks (8) which are arranged in the circumferential direction, the outer side surfaces (9) of the second supporting blocks (8) can be pressed and attached to the inner wall (N-1) in the middle of the annular casing (3), and the upper end of the second inner supporting component (5) is provided with a cover plate component comprising a cover plate (10), the bottom surface of the cover plate (10) can be tightly pressed and attached to the top surface of the annular casing (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 (11), a supporting column (12) is arranged on the bottom surface of the tail portion of each pressing plate (11), a pressing plate screw (13) is arranged in the middle of each pressing plate (11) in a penetrating mode, the pressing plate screws (13) are in threaded fit with the chassis (1), and the pressing plate screws (13) are screwed tightly to enable the bottom surface of the head portion of each pressing plate (11) to be tightly pressed and attached to the top surface of the annular plate (H).
3. The clamp of claim 1, wherein: the first inner support component (4) comprises a hollow cylindrical base (14), the base (14) is fixed on the top surface of the chassis (1) through screws, a plurality of threaded through holes are uniformly distributed on the circumference of the inner wall of the base (14), a first adjusting screw (15) is matched with the inner thread of the threaded through hole, the first supporting block (6) is positioned at the outer side of the first adjusting screw (15), a cushion block (16) is arranged between the first supporting block (6) and the chassis (1), the first supporting block (6) and the cushion block (16) are fixed on the chassis (1) through a first supporting block screw (19), the top surface of the middle part of the first supporting block (6) is provided with a long waist-shaped first guide through hole (17), a first guide rod (18) is in sliding fit with the inner side surface of the first guide through hole (17), the bottom of the first guide rod (18) is in threaded fit with the chassis (1);
unscrewing the first supporting block screw (19) and rotationally adjusting a first adjusting screw (15), the first adjusting screw (15)
The first supporting block (6) can be pushed, so that the outer side surface (7) of the first supporting block (6) is tightly pressed and attached to the inner wall (N) of the bottom of the annular casing (3).
4. The clamp of claim 3, wherein: the second inner support assembly (5) comprises a T-shaped annular base (20), the base (20) is fixed on the top surface of the base (14) through screws, a plurality of threaded through holes are uniformly formed in the inner wall of the top of the base (20) in the circumferential direction, a second adjusting screw (21) is matched with the threaded through holes in an internal thread mode, the second support block (8) is located on the outer side of the second adjusting screw (21) and fixed on the top surface of the bottom of the base (20) through second support block screws (22), a long waist-shaped second guide through hole (23) is formed in the top surface of the middle of the second support block (8), a second guide rod (24) is matched between the inner side surfaces of the second guide through hole (23) in a sliding mode, and the bottom of the second guide rod (24) is matched with the base (20) in a threaded mode;
and the second supporting block screw (22) is unscrewed and the second adjusting screw (21) is rotationally adjusted, and the second adjusting screw (21) can push the second supporting block (8) so that the outer side surface (9) of the second supporting block (8) is tightly pressed and attached to the inner wall (N-1) in the middle of the annular casing (3).
5. The clamp of claim 4, wherein: the middle part of apron (10) is worn to be equipped with many middle part screws (25) of circumference range, and this middle part screw (25) screw-thread fit is on base (20), screws up middle part screw (25) can make the bottom surface of apron (10) compress tightly the laminating on the top surface of annular machine casket (3), be equipped with on the bottom surface of apron (10) and be cylindrical location boss, but this location boss sliding fit goes into the last port of annular machine casket (3).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020217568925 | 2020-08-20 | ||
| CN202021756892 | 2020-08-20 |
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| Publication Number | Publication Date |
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| CN212600316U true CN212600316U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022067251.5U Active CN212600316U (en) | 2020-08-20 | 2020-09-18 | Fixture for machining annular casing of aircraft engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111993112A (en) * | 2020-08-20 | 2020-11-27 | 杭州天扬机械有限公司 | Fixture for machining annular casing of aircraft engine |
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- 2020-09-18 CN CN202022067251.5U patent/CN212600316U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111993112A (en) * | 2020-08-20 | 2020-11-27 | 杭州天扬机械有限公司 | Fixture for machining annular casing of aircraft engine |
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