CN112247474B - Thin-wall annular assembly sizing device - Google Patents
Thin-wall annular assembly sizing device Download PDFInfo
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- CN112247474B CN112247474B CN202011057766.5A CN202011057766A CN112247474B CN 112247474 B CN112247474 B CN 112247474B CN 202011057766 A CN202011057766 A CN 202011057766A CN 112247474 B CN112247474 B CN 112247474B
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- 238000004513 sizing Methods 0.000 title claims abstract description 29
- 230000006835 compression Effects 0.000 claims abstract description 50
- 238000007906 compression Methods 0.000 claims abstract description 50
- 238000003825 pressing Methods 0.000 claims description 23
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 abstract description 8
- 238000005429 filling process Methods 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 206010011376 Crepitations Diseases 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a thin-wall annular assembly calibrating device which comprises a clamp base, a calibrating assembly and a force application assembly, wherein the calibrating assembly comprises a support, a calibrating rod, a hinge shaft and a reset mechanism, and the support is arranged on a clamp chassis; the calibration rod is connected with the support through a hinge shaft, and a plurality of sets of calibration components are arranged along a certain circumferential direction; one end of the resetting mechanism is fixed on the clamp base, and the other end of the resetting mechanism is connected with the driven part of the calibrating rod; the force application assembly comprises a compression screw, a compression ring and a driving nut, the lower end of the compression screw is connected with the clamp base, the driving nut is in threaded connection with the compression screw, the compression screw penetrates through the center of the compression ring, the compression ring is arranged below the driving nut, and the lower end of the compression ring applies pressure to the driving part of the sizing rod, so that the problem that the size of a thin-wall part cannot meet the design requirement due to deformation in the glue filling process is solved.
Description
Technical Field
The invention belongs to the technical field of mechanical assembly, and particularly relates to a thin-wall annular assembly calibrating device.
Background
The aero-engine booster stage stator assembly is a structure adopted by a high-thrust turbofan engine, and referring to fig. 1, the booster stage stator assembly is composed of a booster stage casing D, a stator inner ring B and a full circle of uniformly distributed booster stage stator blades C. The booster-stage stator inner ring belongs to a thin-wall part and is easy to deform, and the ovality is about 2-4mm in a free state. If welding pressure boost level inner ring school type back and pressure boost level stator blade, carry out the encapsulating again, form silastic-layer A, discover that many crackles appear in the inner ring in the process of taking a trial run, consequently adopt the stator inner ring to fix with the blade root under free state, lead to unable assurance sub-assembly design requirement of pressure boost level stator inner ring ovality after the assembly is fixed.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a thin-wall annular component sizing device which is used for correcting the size of an inner ring of a combined part, enabling the inner ring to be in a limiting state in the glue filling process, ensuring the design size requirement of the combined part, and solving the problem that the ovality of the part does not reach the standard due to the deformation of a thin-wall part in the glue filling process of the part.
In order to achieve the purpose, the invention adopts the technical scheme that: a thin-wall annular assembly calibrating device comprises a clamp base, a calibrating assembly and a force application assembly, wherein the calibrating assembly comprises a support, a calibrating rod, a hinge shaft and a reset mechanism, and the support is arranged on a clamp chassis; the calibration rod is connected with the support through a hinge shaft, and a plurality of sets of calibration components are arranged along a certain circumferential direction; one end of the resetting mechanism is fixed on the clamp base, and the other end of the resetting mechanism is connected with the driven part of the calibrating rod; the force application assembly comprises a compression screw, a compression ring and a driving nut, the lower end of the compression screw is connected with the clamp base, the driving nut is in threaded connection with the compression screw, the compression screw penetrates through the center of the compression ring, the compression ring is arranged below the driving nut, and the periphery of the compression ring is hinged to a driving portion of the shaping rod or is abutted to the upper end face and the lower end face of the driving portion of the shaping rod.
A plurality of guide assemblies are arranged on the periphery of the compression ring and comprise positioning pins, linear bushings and positioning bushings, the positioning pins are perpendicularly connected with the clamp base, the linear bushings are sleeved on the outer sides of the positioning pins, the positioning bushings are sleeved on the outer sides of the linear bushings, and the positioning bushings are connected with the compression ring.
And a limiting ring is arranged between the pressing ring and the clamp base and is connected with the pressing ring.
The reset mechanism adopts a tension spring or a torsion spring.
A base plate is arranged below the driving nut, a reinforcing plate is arranged on the periphery of the lower portion of the pressing ring, and a through hole is formed in the periphery of the reinforcing plate.
The driven part of the sizing rod is provided with a pressing plate, and the size of the contact surface of the pressing plate and the part is consistent with the profile required by the part design.
And a supporting nail is arranged at the contact position of the sizing rod and the press ring.
And a clamp ring is also arranged above the clamp bolt and is connected with the clamp base through a connecting screw rod.
A plurality of wedge-shaped fixture blocks are arranged on the periphery of the compression ring, and the circumference where the fixture blocks are located is not smaller than the diameter of the smaller end face of the part to be calibrated.
The upper part of the compression screw is provided with a switching sleeve, the lower end of the switching sleeve is connected with a driving nut, and the upper end of the switching sleeve is provided with a driving handle.
Compared with the prior art, the invention has at least the following beneficial effects:
the device of the invention enables the inner ring to be in a limiting state in the glue pouring process of the thin-wall assembly, a driving force is formed by matching the compression screw and the driving nut, the driving force is large, the moving step length is small, pressure can be more accurately applied to the compression ring and the sizing rods, the whole device is connected with the clamp base, the integrity of the device can be ensured, a plurality of sizing rods are arranged along the circumference of the thin-wall assembly, the compression ring moves up and down, the sizing rods simultaneously perform sizing on the inner ring of the part, the pressure can be ensured to be applied at the position needing to be pressurized, the reliability of the device can be improved, finally, each part of the inner ring assembly can be ensured to meet the design size requirement, and the problem that the size cannot meet the design requirement due to deformation of the part in the glue pouring process is solved; the calibrating device has novel structure and convenient operation, and can completely meet the requirements of the size and the profile of the inner ring of the thin-wall assembly after the assembly is filled with glue.
Drawings
FIG. 1 is a schematic view of a booster stage stator assembly.
FIG. 2 is a schematic diagram of a calibration apparatus according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of a calibration assembly in accordance with the present invention.
FIG. 4 is a schematic diagram of a force application assembly in accordance with an embodiment of the present invention.
FIG. 5 is a schematic diagram of a guide assembly in accordance with an embodiment of the present invention.
FIG. 6 is a schematic view of an additional adapter sleeve that may be implemented in accordance with the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Taking the booster stage stator assembly as an example, as shown in figure 1,
referring to fig. 2, the thin-wall annular component calibration device comprises a clamp base 21, a calibration component 1 and a force application component 2, wherein the calibration component 1 comprises a support 5, a calibration rod 6, a hinge shaft 8 and a reset mechanism, and the support 5 is arranged on a clamp chassis; the calibrating rods 6 are connected with the support 5 through hinge shafts 8, a plurality of calibrating rods 6 are arranged along a certain circumferential direction, and driven parts of the calibrating rods 6 form a lever mechanism; one end of the resetting mechanism is fixed on the clamp base 21, and the other end of the resetting mechanism is connected with the driven part of the calibrating rod 6; the force application assembly 2 comprises a compression screw 13, a compression ring 12 and a driving nut 15, the lower end of the compression screw 13 is connected with a clamp base 21, the driving nut 15 is in threaded connection with the compression screw 13, the compression screw 13 penetrates through the center of the compression ring 12, the compression ring 12 is arranged below the driving nut 15, the compression ring is hinged to a driving portion of the shaping rod for a circle or is abutted to the upper end face and the lower end face of the driving portion of the shaping rod for a circle, and the lower end face of the compression ring 12 applies pressure to the driving portion of the shaping rod 6.
The drive nut 15 sets up the spacing ring with the 12 junctions of clamping ring, sets up the spacing groove in the clamping ring 12, and the spacing ring embedding spacing groove, and the spacing ring can rotate in the spacing groove, and 15 levogyration or dextrorotation homoenergetic drives clamping ring 12 and removes of drive nut.
The calibrating assembly 1 in the calibrating device comprises a support 5, a calibrating rod 6, a supporting nail 7, a hinge shaft 8, a washer 9, a cotter pin 10 and a tension spring 11, as shown in FIG. 3; the support 5 is fixed on the clamp base 21; the calibration bar 6 is arranged on the support 5 and rotates around a hinge shaft 8 to form a lever mechanism, and the calibration bar 6 is divided into a driving part and a driven part by taking the hinge shaft 8 as a fulcrum.
The calibrating rod 6 is in a hook shape, a driving part of the calibrating rod is horizontally arranged, a driven part of the calibrating rod is vertically arranged, a horizontal extension section is arranged at the top end of the driven part, the end face of the horizontal extension section is in contact with the surface of a part to be calibrated, and pressure applied by the driven part of the calibrating rod 6 is along the radial direction of the pressure ring 12 and faces the center of the pressure ring 12; of course, when the driving portion is pressed, the output force of the driven portion may have an angle with the horizontal direction, and is not always in the horizontal direction.
As another possible embodiment, the driven portion of the sizing rod 6 deviates from the central direction of the press ring 12, the top surface of one circle of the press ring 12 contacts with the lower surface of the driving portion of the sizing rod 6, the driving nut 15 moves upwards along the compression screw 13, the press ring 12 applies upward pressure to the sizing rod 6, and the extension of the driven portion of the sizing rod 6 may deviate from the central direction of the press ring and face the outer side of the annular thin-walled component to apply outward pressure to the annular thin-walled component.
A lever principle is adopted on a glue filling clamp, a synchronous multi-point position correction device is added, the position of a correction rod is adjusted, the correction function of the thin-wall part is realized, and the ovality requirement and the related size requirement of the part are ensured. The device comprises a calibration component 1, a force application component 2, a guide component 3 and a limit ring 4, as shown in figure 2. The device is one part of a glue filling clamp for a stator assembly of a booster engine.
A backing plate 14 is arranged below the driving nut 15, a reinforcing plate is arranged on the periphery below the pressing ring 12, and a through hole is formed in the periphery of the reinforcing plate.
The reset mechanism adopts a tension spring 11 or a torsion spring.
The size of the profile of the part contacted by the sizing component 1 is consistent with the profile required by the part design; one end of the tension spring 11 is fixed on the clamp base 21 through a screw, and the other end of the tension spring is connected with the sizing rod 6 through a screw, so that when the force application component 2 does not apply force, the sizing rod 6 is separated from the molded surface of the part, and the part is clamped.
When the reset mechanism adopts a torsion spring, a first torsion arm of the torsion spring is connected with the clamp base 21, and a second torsion arm of the torsion spring is connected with a driven part of the calibrating rod 6.
In order to enable the calibrating rod 6 to be used for parts with different profiles, the driven part of the calibrating rod 6 is provided with a pressing plate, a hinge lug is arranged on the pressing plate, the pressing plate is hinged with the driven part of the calibrating rod 6 through the hinge lug, the size of the contact surface of the pressing plate and the parts is consistent with the profile required by part design, and the pressing force perpendicular to the surface of the parts can be applied to the parts by the driven part of the calibrating rod 6.
The force application assembly 2 in the calibrating device comprises a pressing ring 12, a compression screw 13, a backing plate 14 and a driving nut 15, and is shown in FIG. 4; the pressing ring 12 is fixed on the compression screw 13 through the backing plate 14 and the driving nut 15, and the compression screw 13 is rotated through the upper outer hexagon of the compression screw 13 or the round hole on the outer hexagon to enable the compression screw 13 to move in the vertical direction and drive the pressing ring 12 to move in the vertical direction. If the pressing screw 13 is inconvenient to apply force to rotate, the adapter sleeve and the driving handle can be added at the hexagonal part outside the pressing screw 13 to rotate, and fig. 6 is referred to.
As shown in fig. 5, the guide assembly 3 in the calibrating device comprises a positioning pin 16, a linear bushing 17 and a positioning bushing 18, which ensure that the compression ring 12 in the force application assembly 2 moves vertically.
A clamp ring is arranged above the clamp bolt 13 and connected with the clamp base 21 through a connecting screw rod; a plurality of wedge-shaped fixture blocks are arranged on the periphery of the compression ring, and the circumference where the fixture blocks are located is not smaller than the diameter of the smaller end face of the part to be calibrated.
Limiting ring 4 in the school type device, limiting ring 4 are fixed on clamping ring 12, and rotary drive nut 15, clamping ring 12 drive the vertical downstream of limiting ring 4, set for through the height dimension H of limiting ring 4, avoid the part to rectify excessively.
Claims (9)
1. A thin-wall annular component calibration device is characterized by comprising a clamp base (21), a calibration component (1) and a force application component (2), wherein the calibration component (1) comprises a support (5), a calibration rod (6), a hinge shaft (8) and a reset mechanism, and the support (5) is arranged on a clamp chassis; the calibrating rod (6) is connected with the support (5) through a hinge shaft (8), and a plurality of sets of calibrating assemblies (1) are arranged along a certain circumferential direction; one end of the resetting mechanism is fixed on the clamp base (21), and the other end of the resetting mechanism is connected with the driven part of the calibrating rod (6); the force application assembly (2) comprises a compression screw (13), a pressing ring (12) and a driving nut (15), the lower end of the compression screw (13) is connected with a clamp base (21), the driving nut (15) is in threaded connection with the compression screw (13), the compression screw (13) penetrates through the center of the pressing ring (12), the pressing ring (12) is arranged below the driving nut (15), one circle of the pressing ring (12) is hinged with a driving part of a sizing rod (6) or one circle of the pressing ring (12) is abutted against the upper end face and the lower end face of the driving part of the sizing rod (6), a plurality of guide assemblies (3) are arranged on one circle of the pressing ring (12), each guide assembly (3) comprises a positioning pin (16), a linear bushing (17) and a positioning bushing (18), the positioning pin (16) is vertically connected with the clamp base (21), the linear bushing (17) is sleeved on the outer side of the positioning pin (16), and the positioning bushing (18) is sleeved on the outer side of the linear bushing (17), the positioning bush (18) is connected with the pressure ring (12).
2. The thin-wall annular assembly sizing device according to claim 1, characterized in that a limiting ring (4) is arranged between the press ring (12) and the clamp base (21), and the limiting ring (4) is connected with the press ring (12).
3. The thin-walled ring assembly sizing device according to claim 1, wherein the reset mechanism is a tension spring (11) or a torsion spring.
4. The thin-wall annular assembly sizing device according to claim 1, characterized in that a backing plate (14) is arranged below the driving nut (15), a reinforcing plate is arranged on the periphery below the pressing ring (12), and a through hole is formed in the periphery of the reinforcing plate.
5. The thin-walled ring assembly sizing device according to claim 1, characterized in that the driven part of the sizing rod (6) is provided with a pressure plate, and the size of the contact surface of the pressure plate and the part is consistent with the design required profile of the part.
6. The thin-walled ring assembly sizing device according to claim 1, characterized in that a support pin (7) is arranged at the position where the sizing rod (6) contacts the compression ring (12).
7. The thin-walled ring assembly sizing device according to claim 1, characterized in that a compression ring is further arranged above the compression screw (13), and the compression ring is connected with the clamp base (21) through a connecting screw.
8. The thin-walled ring assembly sizing device according to claim 7, wherein a plurality of wedge-shaped fixture blocks are arranged on the circumference of the compression ring, and the diameter of the fixture blocks is not smaller than the diameter of the smaller end face of the part to be sized.
9. The thin-walled ring assembly sizing device according to claim 1, characterized in that an adapter sleeve is arranged above the compression screw (13), the lower end of the adapter sleeve is connected with the driving nut (15), and the upper end of the adapter sleeve is provided with a driving handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011057766.5A CN112247474B (en) | 2020-09-29 | 2020-09-29 | Thin-wall annular assembly sizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011057766.5A CN112247474B (en) | 2020-09-29 | 2020-09-29 | Thin-wall annular assembly sizing device |
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| CN112247474A CN112247474A (en) | 2021-01-22 |
| CN112247474B true CN112247474B (en) | 2021-09-17 |
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| CN202011057766.5A Active CN112247474B (en) | 2020-09-29 | 2020-09-29 | Thin-wall annular assembly sizing device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113600410A (en) * | 2021-08-20 | 2021-11-05 | 中国航发沈阳黎明航空发动机有限责任公司 | Glue pouring positioning method for blade ring part |
| CN114134308A (en) * | 2021-11-26 | 2022-03-04 | 昌河飞机工业（集团）有限责任公司 | Tempering correction clamp and method for annular sheet part |
| CN114653788A (en) * | 2022-02-21 | 2022-06-24 | 北京航空材料研究院股份有限公司 | Correction repair tool and repair method for cartridge receiver |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1523218A1 (en) * | 1987-12-21 | 1989-11-23 | Всесоюзный научно-исследовательский и проектно-конструкторский институт геофизических методов исследования, испытания и контроля нефтегазоразведочных скважин | Arrangement for bending wave-like ring-type springs |
| JP2000008808A (en) * | 1998-06-25 | 2000-01-11 | Honda Motor Co Ltd | Stopper pin bending device for turbine rotor |
| CN201366470Y (en) * | 2009-02-04 | 2009-12-23 | 林德胜制罐机械股份有限公司 | Flattening and edge-flanging die structure |
| CN105396905A (en) * | 2015-12-29 | 2016-03-16 | 中信戴卡股份有限公司 | Improved online roundness correcting device for inner supporting type wheel workpiece |
| CN105666172A (en) * | 2016-04-07 | 2016-06-15 | 合肥美桥汽车传动及底盘系统有限公司 | Ring gear hard turning clamp device |
| CN205763339U (en) * | 2016-05-24 | 2016-12-07 | 唐山兴民钢圈有限公司 | A kind of tyre rim correction unloading mold |
| CN209918628U (en) * | 2019-05-16 | 2020-01-10 | 福建省统仕金属制品有限公司 | Automatic molding device for annular reinforcing ribs of baking finish barrel |
| CN111299444A (en) * | 2019-10-25 | 2020-06-19 | 湖北江山专用汽车有限公司 | Mixing drum forming correction device |
-
2020
- 2020-09-29 CN CN202011057766.5A patent/CN112247474B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1523218A1 (en) * | 1987-12-21 | 1989-11-23 | Всесоюзный научно-исследовательский и проектно-конструкторский институт геофизических методов исследования, испытания и контроля нефтегазоразведочных скважин | Arrangement for bending wave-like ring-type springs |
| JP2000008808A (en) * | 1998-06-25 | 2000-01-11 | Honda Motor Co Ltd | Stopper pin bending device for turbine rotor |
| CN201366470Y (en) * | 2009-02-04 | 2009-12-23 | 林德胜制罐机械股份有限公司 | Flattening and edge-flanging die structure |
| CN105396905A (en) * | 2015-12-29 | 2016-03-16 | 中信戴卡股份有限公司 | Improved online roundness correcting device for inner supporting type wheel workpiece |
| CN105666172A (en) * | 2016-04-07 | 2016-06-15 | 合肥美桥汽车传动及底盘系统有限公司 | Ring gear hard turning clamp device |
| CN205763339U (en) * | 2016-05-24 | 2016-12-07 | 唐山兴民钢圈有限公司 | A kind of tyre rim correction unloading mold |
| CN209918628U (en) * | 2019-05-16 | 2020-01-10 | 福建省统仕金属制品有限公司 | Automatic molding device for annular reinforcing ribs of baking finish barrel |
| CN111299444A (en) * | 2019-10-25 | 2020-06-19 | 湖北江山专用汽车有限公司 | Mixing drum forming correction device |
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| CN112247474A (en) | 2021-01-22 |
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Effective date of registration: 20240604 Address after: 710000, Room 401, 4th Floor, Building 7, Dapu Industrial Park, No. 4955 Shangyuan Road, Economic Development Zone, Xi'an City, Shaanxi Province Patentee after: XI'AN Xaec Suntimes HIGH-TECH Co.,Ltd. Country or region after: China Address before: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee before: AECC AVIATION POWER CO,LTD. Country or region before: China |