Floating supporting device and method for machining and positioning aero-engine saddle pad

Abstract

The invention discloses a floating supporting device and method for machining and positioning an aero-engine saddle pad. The floating supporting device comprises a supporting shell, a lifting shell is arranged in the supporting shell, a lifting cavity is formed in the lifting shell, and a lifting rod is arranged in the lifting cavity; a supporting cavity used for containing hydraulic oil is formed between the supporting shell and the lifting shell, the supporting cavity communicates with the lifting cavity, a rotary pressing assembly is arranged in the supporting cavity and makes contact with the outer wall of the lifting rod, and a positioning assembly is further arranged on the lifting shell. The device has the beneficial effects that through the synergistic effect of the lifting rod and the positioning assembly in the lifting shell, precise supporting of the aero-engine saddle pad is achieved, the stability and the machining precision in the machining process are ensured, floating supporting of the lifting rod is achieved through the pressure change of hydraulic oil, and the device adapts to different machining requirements and the shapes of the saddle pads.

Description

Technical Field

[0001] The present invention relates to a floating support device and method for machining and positioning an aeroengine saddle pad. Background Art

[0002] An aeroengine saddle pad is a device for supporting and fixing aeroengine components. It is usually used to ensure that the engine maintains a stable and accurate position during operation and assembly. The saddle pad needs to have high precision and durability to withstand various forces and vibrations generated during engine operation. During the manufacturing process of an aeroengine, the machining and positioning accuracy of the saddle pad has a crucial impact on the performance and safety of the entire engine.

[0003] In the prior art, during the machining process of an aeroengine saddle pad, it is necessary to support the aeroengine saddle pad for machining. However, during the support process of the existing support device, for aeroengine saddle pads with different shapes and sizes, it is difficult for the traditional support device to quickly adjust to adapt to components of different specifications. In view of this, the present invention proposes a floating support device and method for machining and positioning an aeroengine saddle pad to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a floating support device and method for machining and positioning an aeroengine saddle pad to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A floating support device for machining and positioning an aeroengine saddle pad, including a support housing, an elevating housing is arranged inside the support housing, an elevating cavity is arranged in the elevating housing, and an elevating rod is arranged in the elevating cavity; A support cavity for placing hydraulic oil is arranged between the support housing and the elevating housing, the support cavity is communicated with the elevating cavity, a rotary pressing assembly is arranged in the support cavity, the rotary pressing assembly is in contact with the outer wall of the elevating rod, a positioning assembly is further arranged on the elevating housing, the rotary pressing assembly descends in the support cavity, so that hydraulic oil enters the elevating cavity from the support cavity to lift the elevating rod, the elevating rod is in contact with the positioning assembly, so that the positioning assembly is lifted to be in contact with the rotary pressing assembly, so that the rotary pressing assembly is in close contact with the elevating rod for locking.

[0006] As an improvement of the above technical solution, the elevating housing and the support housing are coaxially arranged, the elevating housing is provided with an elevating opening, the elevating rod is slidably arranged at the elevating opening, a lifting block is arranged at the bottom of the elevating rod, the lifting block is slidably arranged in the elevating cavity, and the lifting block is in close contact with the elevating cavity; A first oil guiding pipeline is arranged at the bottom of the supporting shell, a second oil guiding pipeline is arranged at the bottom of the lifting shell, the first oil guiding pipeline and the second oil guiding pipeline are communicated, the first oil guiding pipeline is communicated with the supporting cavity, and the second oil guiding pipeline is communicated with the lifting cavity.

[0007] As an improvement of the above technical solution, the rotary pressing assembly includes a pressing sleeve which is slidably arranged in the supporting cavity. A pressing chute is arranged on the outer wall of the lifting shell, a pressing slider is arranged on the inner wall of the pressing sleeve, the pressing slider is adapted to the pressing chute, a pressing sealing head is arranged on the pressing sleeve, and the pressing sealing head is in close contact with the inner wall of the supporting cavity; An integrally formed external thread sleeve is arranged on the pressing sleeve, a rotary sleeve is arranged on the external thread sleeve, the rotary sleeve is threadedly sleeved on the outer wall of the external thread sleeve, the rotary sleeve is rotatably arranged on the supporting shell, and the rotary sleeve rotates on the supporting shell so that the external thread sleeve and the pressing sleeve are adjusted in position in the supporting cavity.

[0008] As an improvement of the above technical solution, a rotary guiding annular groove is formed on the outer wall of the rotary sleeve; Two groups of arc-shaped plates are symmetrically arranged on the upper part of the supporting shell, the rotary sleeve is arranged between the two groups of arc-shaped plates, a plurality of groups of rotary guiding plates are uniformly arranged on the arc-shaped plates, the rotary guiding plates are adapted to the rotary guiding annular groove, and the rotary guiding plates are placed in the rotary guiding annular groove so that the rotary sleeve rotates on the supporting shell; A crack initiation groove is formed on the rotary guiding plate, and the crack initiation groove is not placed in the rotary guiding annular groove; A plurality of groups of supporting mounting holes are uniformly arranged on the supporting shell, an arc-shaped plate mounting hole is formed on the arc-shaped plate, the arc-shaped plate mounting hole is adapted to the supporting mounting hole, and mounting bolts connected by threads are arranged between the supporting mounting hole and the arc-shaped plate mounting hole.

[0009] As an improvement of the above technical solution, the rotary sleeve is provided with a clamping opening, and the lifting rod extends out from the clamping opening; The rotary sleeve is further provided with a plurality of groups of locking grooves which are arranged in an annular array. A through displacement through hole is formed in the locking groove, a displacement rod is slidably arranged in the displacement through hole, and the displacement rod cooperates with the positioning assembly to lock on the outer wall of the lifting rod.

[0010] As an improvement of the above technical solution, a displacement plate is arranged on the displacement rod, a square spring is sleeved on the outer wall of the displacement rod, the square spring is connected to the side wall of the locking groove facing the displacement through hole, the square spring is further connected to the displacement plate, and an arc-shaped rubber plate is arranged on the displacement rod and is in contact with the outer wall of the lifting rod; Two groups of sealing strips are symmetrically arranged on one end surface of the arc-shaped rubber plate facing the lifting rod, and multiple groups of vertical cleaning strips are evenly arranged between the two groups of sealing strips.

[0011] As an improvement of the above technical solution, a positioning ring groove is arranged on the lifting housing, the positioning ring groove is coaxially arranged with the lifting port, and two groups of positioning holes are symmetrically arranged in the positioning ring groove; The positioning component includes a positioning ring plate, two groups of positioning tubes are symmetrically arranged at the bottom end of the positioning ring plate, the positioning ring plate is adapted to the positioning ring groove, the two groups of positioning tubes are adapted to the two groups of positioning holes, a positioning rod is arranged in the positioning tube, and when the lifting block is lifted and contacts the positioning rod, the positioning ring plate is lifted and contacts the displacement rod for locking.

[0012] As an improvement of the above technical solution, a displacement groove is arranged on the displacement rod, a displacement inclined surface is arranged in the displacement groove, a jacking annular plate is arranged on the positioning ring plate, a jacking inclined surface is arranged on the jacking annular plate, the jacking inclined surface is adapted to the displacement inclined surface, and when the jacking inclined surface is lifted, the displacement inclined surface is displaced towards the lifting rod direction, driving the arc-shaped rubber plate to be in close contact with the lifting rod; Two groups of positioning sliders are symmetrically arranged in the positioning tube, two groups of positioning chutes are symmetrically arranged on the outer wall of the positioning rod, the positioning chutes are adapted to the positioning sliders, a placing circular groove is arranged on the positioning ring plate, a positioning threaded hole is arranged on the positioning rod, an adjusting hexagon socket head bolt is arranged in the placing circular groove, the adjusting hexagon socket head bolt extends into the positioning threaded hole, the head of the adjusting hexagon socket head bolt is rotatably arranged in the placing circular groove, and the threaded part of the adjusting hexagon socket head bolt is threadedly connected in the positioning threaded hole.

[0013] A use method of a floating support device for machining and positioning of an aero-engine saddle pad includes the following steps: S10. Hydraulic oil enters the cavity: Press down the lifting rod so that the lifting block is placed on the bottom inner wall of the lifting cavity, inject hydraulic oil into the support cavity, and place the pressing sleeve in the support cavity until the lifting rod can be lifted when the pressing sleeve descends; S20. Sealing and installation: Place the positioning component in the positioning ring groove, place the rotating sleeve on the pressing sleeve, rotate the rotating sleeve so that the bottom of the rotating sleeve contacts the pressing sleeve, and at the same time place the two arc-shaped plates on the support housing and connect and fix them through installation bolts; S30. Rotation test: After S20 is completed, rotate the rotating sleeve, drive the pressing sleeve to descend through the threaded fit of the rotating sleeve and the external threaded sleeve, and observe whether the lifting rod can be lifted. If the lifting rod cannot be lifted smoothly, replace the pressing sealing head until the lifting rod can be lifted smoothly in this step; S40, positioning test: When the lifting rod can be lifted smoothly in S30, the rotating sleeve is continuously rotated until the lifting rod is lifted to the highest position, driving the positioning assembly to be lifted and in contact with the displacement rod, and at the same time checking whether the arc-shaped rubber sheet is locked on the outer wall of the lifting rod. If the arc-shaped rubber sheet cannot be locked smoothly, the positioning assembly is debugged until the arc-shaped rubber sheet can be locked smoothly in this step; S50, pull to reset: Use hydraulic oil to draw lines on the outer wall of the lifting rod. Since the arc-shaped rubber sheet can be deformed, the displacement rod rotates the rotating sleeve to make the rubber arc-shaped sheet rotate on the outer wall of the lifting rod. Then pull multiple sets of displacement rods to reset the positioning assembly without contacting the displacement rods. At the same time, continue to rotate the rotating sleeve until the lifting rod is reset. At the same time, rotate the rotating sleeve in the opposite direction to lift the lifting rod. Observe whether the lines disappear. If they do not disappear, stick multiple sets of vertical cleaning strips on the arc-shaped rubber sheet until the lines disappear in this step. S60, installation support: After S50 is completed, the support housing is installed in the working area, and the workpiece is supported after being confirmed to be stable.

[0014] As an improvement of the above technical solution, in S20, when the rotating sleeve is placed on the pressing sleeve, the arc-shaped rubber sheet is moved, and through the deformation ability of the arc-shaped rubber sheet itself, multiple groups of arc-shaped rubber sheets arranged in a ring array pass through the head of the lifting rod and contact the outer wall of the lifting rod; When the rotating sleeve rotates in S30, S40, and S50, a force is applied to the side of the displacement rod to drive the rotating sleeve to rotate and adjust around the axis of the rotating sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects: Through the synergistic effect of the lifting rod and the positioning assembly inside the lifting shell, accurate support for the aircraft engine saddle pad is achieved to ensure stability and processing accuracy during the processing. In addition, the support cavity and the lifting cavity provided in the support shell cooperate to achieve floating support of the lifting rod through the pressure change of the hydraulic oil, which can adapt to different processing requirements and the shape of the saddle pad. During the lifting process of the lifting rod, the rotating clamping assembly is in contact with the outer wall of the lifting rod, so that the outer wall of the lifting rod can be cleaned, reducing pollution and wear during the processing process. In addition, the close contact between the rotating clamping assembly, the lifting rod and the positioning assembly provides a reliable locking mechanism to ensure stable support of the saddle pad during the processing process. The overall structural design is modular, which makes maintenance and replacement of parts convenient, and improves the service life and reliability of the equipment. At the same time, the whole device has a compact structure, occupies a small space, and is easy to install and use; Through precisely controlled steps, including the filling of hydraulic oil, the installation of seals, rotation tests, positioning tests, reset mechanisms, and cleanliness verification, the operation efficiency and processing stability are improved. The equipment has an adaptive adjustment function. Through the cooperation of a displacement rod and an arc-shaped rubber plate, the adaptive reset and locking of the lifting rod are achieved. The equipment design allows for self-protection under overload conditions, with low maintenance costs and easy replacement of damaged components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is the Figure 2 A - A cross-sectional view of the present invention; Figure 4 It is the Figure 3 Enlarged schematic structural diagram at B of the present invention; Figure 5 It is the Figure 3 Enlarged schematic structural diagram at C of the present invention; Figure 6 It is a schematic structural diagram of the support housing of the present invention; Figure 7 It is a schematic structural diagram of the compression sleeve of the present invention; Figure 8 It is a schematic structural diagram of the arc-shaped plate of the present invention; Figure 9 It is the Figure 8 Enlarged schematic structural diagram at D of the present invention; Figure 10 It is a front view of the rotating sleeve of the present invention; Figure 11 It is the Figure 10 E - E cross-sectional view of the present invention; Figure 12 It is a position schematic diagram of the displacement rod and the positioning assembly of the present invention; Figure 13 It is the Figure 12 F - F cross-sectional view of the present invention; Figure 14 It is the Figure 13 Enlarged schematic structural diagram at G of the present invention; Figure 15 It is a schematic structural diagram of the positioning ring plate of the present invention; Figure 16 It is the Figure 15 Enlarged schematic structural diagram at H of the present invention.

[0017] In the figure: 10, support housing; 11, arc plate; 111, arc plate mounting hole; 12, mounting bolt; 13, support cavity; 14, first oil guiding pipe; 15, rotary guiding plate; 151, crack initiation groove; 16, support mounting hole; 20, lifting rod; 21, lifting block; 30, rotary pressing assembly; 31, rotary sleeve; 311, rotary guiding annular groove; 312, displacement through hole; 313, locking groove; 314, clamping opening; 32, external thread sleeve; 321, pressing slider; 33, pressing sleeve; 331, pressing sealing head; 34, displacement rod; 341, displacement groove; 342, displacement inclined plane; 343, displacement plate; 344, square spring; 35, arc rubber plate; 351, vertical cleaning strip; 352, sealing strip; 40, lifting housing; 41, lifting cavity; 42, pressing chute; 43, second oil guiding pipe; 44, lifting opening; 45, positioning hole; 46, positioning ring groove; 50, positioning assembly; 51, positioning ring plate; 52, jacking annular plate; 53, jacking inclined plane; 54, adjusting hexagon socket head bolt; 55, positioning rod; 551, positioning chute; 56, positioning pipe; 561, positioning slider; 57, placing circular groove. Detailed implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0019] Embodiment: As Figure 1-16 shown, this embodiment proposes a floating support device for the machining and positioning of an aero-engine saddle pad, including a support housing 10. An lifting housing 40 is arranged inside the support housing 10. The lifting housing 40 is provided with a lifting cavity 41, and a lifting rod 20 is arranged inside the lifting cavity 41; A support cavity 13 for placing hydraulic oil is arranged between the support housing 10 and the lifting housing 40. The support cavity 13 is communicated with the lifting cavity 41. A rotary pressing assembly 30 is arranged in the support cavity 13. The rotary pressing assembly 30 contacts the outer wall of the lifting rod 20. A positioning assembly 50 is further arranged on the lifting housing 40. The rotary pressing assembly 30 descends in the support cavity 13, so that the hydraulic oil enters the lifting cavity 41 from the support cavity 13 to lift the lifting rod 20. The lifting rod 20 contacts the positioning assembly 50, so that the positioning assembly 50 is lifted to contact the rotary pressing assembly 30, and the rotary pressing assembly 30 is in close contact with the lifting rod 20 for locking.

[0020] In this embodiment, when floatingly supporting the saddle pad of an aeroengine, the support housing 10 is installed in the working area, and the saddle pad of the aeroengine is placed on top of the lifting rod 20. Then, the rotating pressing assembly 30 descends in the support cavity 13, causing hydraulic oil to enter the lifting cavity 41 from the support cavity 13 to lift the lifting rod 20, thereby lifting the saddle pad of the aeroengine. During this process, since the rotating pressing assembly 30 contacts the outer wall of the lifting rod 20, the outer wall of the lifting rod 20 can be cleaned when the lifting rod 20 is lifted; Certainly, when the lifting rod 20 is lifted and contacts the positioning assembly 50, the positioning assembly 50 is lifted and contacts the rotating pressing assembly 30, causing the rotating pressing assembly 30 to tightly wrap around the outer wall of the lifting rod 20 for locking; Through the coordinated action of the lifting rod 20 and the positioning assembly 50 inside the lifting housing 40, precise support for the saddle pad of the aeroengine is achieved, ensuring stability and machining accuracy during the machining process. Moreover, the support cavity 13 and the lifting cavity 41 provided in the support housing 10 cooperate, and the floating support of the lifting rod 20 is realized through the pressure change of the hydraulic oil, adapting to different machining requirements and the shape of the saddle pad; During the lifting process of the lifting rod 20, the contact between the rotating pressing assembly 30 and the outer wall of the lifting rod 20 can clean the outer wall of the lifting rod 20, reducing pollution and wear during the machining process. Moreover, the close contact between the rotating pressing assembly 30 and the lifting rod 20 and the positioning assembly 50 provides a reliable locking mechanism to ensure the stable support of the saddle pad during the machining process; With the overall structure designed modularly, it is convenient to maintain and replace components, improving the service life and reliability of the equipment. At the same time, the entire device has a compact structure, occupies a small space, and is convenient for installation and use.

[0021] Specifically, the lifting housing 40 and the support housing 10 are coaxially arranged. The lifting housing 40 is provided with a lifting opening 44. The lifting rod 20 is slidably arranged at the lifting opening 44. A lifting block 21 is arranged at the bottom of the lifting rod 20. The lifting block 21 is slidably arranged in the lifting cavity 41, and the lifting block 21 is in close contact with the lifting cavity 41; The bottom of the support housing 10 is provided with a first oil guiding pipeline 14. The bottom of the lifting housing 40 is provided with a second oil guiding pipeline 43. The first oil guiding pipeline 14 and the second oil guiding pipeline 43 are communicated. The first oil guiding pipeline 14 is communicated with the support cavity 13, and the second oil guiding pipeline 43 is communicated with the lifting cavity 41.

[0022] In this embodiment, when the lifting rod 20 is lifted or lowered, the hydraulic oil enters the lifting cavity 41 through the first oil guiding pipeline 14 and the second oil guiding pipeline 43, thereby lifting the lifting block 21, so that the lifting rod 20 is lifted or lowered at the lifting opening 44; of course, when the lifting rod 20 is lifted to the highest position, the lifting block 21 on the lifting rod 20 contacts the positioning assembly 50 to perform the locking process.

[0023] Specifically, the rotary pressing assembly 30 includes a pressing sleeve 33. The pressing sleeve 33 is slidably arranged in the support cavity 13. A pressing sliding groove 42 is arranged on the outer wall of the lifting housing 40. A pressing sliding block 321 is arranged on the inner wall of the pressing sleeve 33. The pressing sliding block 321 is adapted to the pressing sliding groove 42. The pressing sleeve 33 is provided with a pressing sealing head 331, and the pressing sealing head 331 is in close contact with the inner wall of the support cavity 13; An integrally formed external thread sleeve 32 is arranged on the pressing sleeve 33. A rotary sleeve 31 is arranged on the external thread sleeve 32. The rotary sleeve 31 is threadedly sleeved on the outer wall of the external thread sleeve 32. The rotary sleeve 31 is rotatably arranged on the support housing 10. The rotary sleeve 31 rotates on the support housing 10, so that the external thread sleeve 32 and the pressing sleeve 33 adjust their positions in the support cavity 13.

[0024] In this case, the threads on the inner wall of the rotary sleeve 31 are not shown.

[0025] In this embodiment, when the hydraulic oil is introduced into the lifting cavity 41, the rotary sleeve 31 is rotated. Through the threaded cooperation between the rotary sleeve 31 and the external thread sleeve 32, the pressing sleeve 33 descends, driving the pressing sealing head 331 to descend. The hydraulic oil is extruded by the pressing sealing head 331, so that the hydraulic oil enters the lifting cavity 41. Of course, when the pressing sleeve 33 descends, through the cooperation between the pressing sliding block 321 and the pressing sliding groove 42, it can prevent the pressing sleeve 33 from rotating as the rotary sleeve 31 rotates, thereby improving the stability of the hydraulic oil flow.

[0026] Specifically, a rotary guiding annular groove 311 is formed on the outer wall of the rotary sleeve 31; Two groups of arc-shaped plates 11 are symmetrically arranged on the support housing 10. The rotary sleeve 31 is arranged between the two groups of arc-shaped plates 11. A plurality of groups of rotary guiding plates 15 are uniformly arranged on the arc-shaped plates 11. The rotary guiding plates 15 are adapted to the rotary guiding annular groove 311. The rotary guiding plates 15 are placed in the rotary guiding annular groove 311, so that the rotary sleeve 31 rotates on the support housing 10; A crack initiation groove 151 is formed on the rotary guiding plate 15, and the crack initiation groove 151 is not placed in the rotary guiding annular groove 311; A plurality of groups of support mounting holes 16 are uniformly arranged on the support housing 10. An arc plate mounting hole 111 is formed in the arc plate 11. The arc plate mounting hole 111 is adapted to the support mounting hole 16. An installation bolt 12 connected by threads is arranged between the support mounting hole 16 and the arc plate mounting hole 111.

[0027] In this embodiment, by arranging the installation bolt 12 connected by threads between the support mounting hole 16 and the arc plate mounting hole 111, the two arc plates 11 can be mounted on the support housing 10 to wrap the rotating sleeve 31 and perform positioning processing on the rotating sleeve 31, thereby ensuring the stability of the rotating sleeve 31. Moreover, it is also convenient for later maintenance of the rotating sleeve 31. Of course, during the positioning of the rotating sleeve 31, the rotation guide plate 15 extends into the rotation guide annular groove 311 to guide the rotating sleeve 31 and facilitate the rotation processing of the rotating sleeve 31; Of course, when the lifting rod 20 is excessively pressed, the lifting rod 20 squeezes the hydraulic oil in the reverse direction. The hydraulic oil squeezes the pressing sleeve 33 and the rotating sleeve 31. Since the rotation guide plate 15 is provided with a crack initiation groove 151, the rotation guide plate 15 can be broken at the crack initiation groove 151, so that the pressing sleeve 33 and the rotating sleeve 31 can be lifted in the support cavity 13 for overload protection, avoiding damage to the support cavity 13 or the lifting cavity 41 due to excessive pressure. After the above-mentioned fracture occurs, only the arc plate 11 needs to be replaced, and the maintenance cost is low, improving the service life and reliability of the equipment.

[0028] Specifically, the rotating sleeve 31 is provided with a clamping opening 314, and the lifting rod 20 extends out from the clamping opening 314; The rotating sleeve 31 is further provided with a plurality of groups of locking grooves 313. The plurality of groups of locking grooves 313 are arranged in an annular array. A through displacement through hole 312 is formed in the locking groove 313. A displacement rod 34 is slidably arranged in the displacement through hole 312. The displacement rod 34 cooperates with the positioning assembly 50 to lock on the outer wall of the lifting rod 20.

[0029] Specifically, a displacement plate 343 is arranged on the displacement rod 34. A square spring 344 is sleeved on the outer wall of the displacement rod 34. The square spring 344 is connected to the side wall of the locking groove 313 facing the displacement through hole 312. The square spring 344 is also connected to the displacement plate 343. An arc-shaped rubber plate 35 is arranged on the displacement rod 34. The arc-shaped rubber plate 35 contacts the outer wall of the lifting rod 20; Two groups of sealing strips 352 are symmetrically arranged on the end surface of the arc-shaped rubber plate 35 facing the lifting rod 20. A plurality of groups of vertical cleaning strips 351 are uniformly arranged between the two groups of sealing strips 352.

[0030] In this case, to prevent the displacement rod 34 from rotating during displacement, both the displacement rod 34 and the displacement through hole 312 are square.

[0031] In this embodiment, during the rotation of the rotating sleeve 31, a force can be applied to the side wall of the displacement rod 34 to drive the rotation of the rotating sleeve 31. The preparation materials of the vertical cleaning strip 351 include but are not limited to cotton, microfiber, polyester fiber, nylon, bamboo fiber, sponge, silica gel, etc. When the square spring 344 is under pressure during the rotation of the rotating sleeve 31, the displacement rod 34 can always be displaced towards the lifting rod 20, so that the arc-shaped rubber plate 35 can always be in contact with the outer wall of the lifting rod 20. During the rotation of the rotating sleeve 31, the vertical cleaning strip 351 on the arc-shaped rubber plate 35 can clean the outer wall of the lifting rod 20. At the same time, since the lifting rod 20 is in a lifted or lowered state, different outer walls of the lifting rod 20 can be cleaned. During the support of the saddle pad of the aeroengine, when the lifting rod 20 does not need to be lifted, due to the contact between the arc-shaped rubber plate 35 and the lifting rod 20, there is friction between the arc-shaped rubber plate 35 and the lifting rod 20, which can prevent the rotating sleeve 31 from rotating, thus ensuring the stability of the support for the saddle pad of the aeroengine.

[0032] Specifically, a positioning ring groove 46 is provided on the lifting housing 40. The positioning ring groove 46 is coaxially arranged with the lifting port 44, and two groups of positioning holes 45 are symmetrically arranged in the positioning ring groove 46. The positioning component 50 includes a positioning ring plate 51. Two groups of positioning tubes 56 are symmetrically arranged at the bottom end of the positioning ring plate 51. The positioning ring plate 51 is adapted to the positioning ring groove 46. The two groups of positioning tubes 56 are adapted to the two groups of positioning holes 45. A positioning rod 55 is arranged in the positioning tube 56. When the lifting block 21 is lifted and contacts the positioning rod 55, the positioning ring plate 51 is lifted and contacts the displacement rod 34 for locking.

[0033] Specifically, a displacement groove 341 is formed in the displacement rod 34. A displacement inclined surface 342 is arranged in the displacement groove 341. A jacking annular plate 52 is arranged on the positioning ring plate 51. A jacking inclined surface 53 is arranged on the jacking annular plate 52. The jacking inclined surface 53 is adapted to the displacement inclined surface 342. When the jacking inclined surface 53 is lifted, the displacement inclined surface 342 is displaced towards the lifting rod 20, driving the arc-shaped rubber plate 35 to be in close contact with the lifting rod 20. Two groups of positioning sliders 561 are symmetrically arranged inside the positioning tube 56. Two groups of positioning chutes 551 are symmetrically arranged on the outer wall of the positioning rod 55. The positioning chutes 551 are adapted to the positioning sliders 561. A placing circular groove 57 is arranged on the positioning ring plate 51. The positioning rod 55 is provided with a positioning threaded hole. An adjusting hexagon socket head bolt 54 is arranged in the placing circular groove 57. The adjusting hexagon socket head bolt 54 extends into the positioning threaded hole. The head of the adjusting hexagon socket head bolt 54 is rotatably arranged in the placing circular groove 57. The threaded part of the adjusting hexagon socket head bolt 54 is threadedly connected in the positioning threaded hole.

[0034] In this embodiment, when the lifting rod 20 is lifted to the highest position, the lifting block 21 contacts the positioning rod 55 first. Then, when lifted to the highest position, the positioning rod 55 is lifted as the lifting block 21 is lifted, causing the positioning ring plate 51 to be lifted, driving the jacking annular plate 52 to be lifted, so that the jacking inclined surface 53 contacts the displacement inclined surface 342. During the continuous lifting process, the displacement inclined surface 342 is displaced towards the lifting rod 20, driving the arc-shaped rubber plate 35 to be in close contact with the lifting rod 20, increasing the friction force between the arc-shaped rubber plate 35 and the lifting rod 20, preventing the rotating sleeve 31 from rotating. At the same time, the displacement rod 34 can also provide a certain supporting ability to the lifting rod 20 to improve the supporting performance of the lifting rod 20 at the highest position. Of course, when the lifting rod 20 needs to descend, first apply pressure in the side direction of the displacement rod 34 to make the rotating sleeve 31 rotate a certain distance first, causing the lifting block 21 to descend and no longer jack up the positioning rod 55. Then, pull the displacement rod 34 in the direction away from the lifting rod 20. Through the cooperation between the displacement inclined surface 342 and the jacking inclined surface 53, the jacking annular plate 52 is lowered to prevent the jacking annular plate 52 from being placed in the displacement groove 341, thereby releasing the state of close contact between the arc-shaped rubber plate 35 and the lifting rod 20. Of course, in this embodiment, the positioning rod 55 can be lowered by rotating the adjusting hexagon socket head bolt 54. Through the threaded fit between the adjusting hexagon socket head bolt 54 and the positioning threaded hole of the positioning rod 55, the positioning rod 55 can be lowered so that the lifting block 21 can contact the positioning rod 55 faster to lock the lifting rod 20 in advance. Of course, it can be adjusted according to the actual situation. Of course, in this case, the arc-shaped rubber plate 35 is always in contact with the outer wall of the lifting rod 20. When the positioning assembly 50 is lifted, the arc-shaped rubber plate 35 is in close contact with the lifting rod 20, increasing the friction force and squeezing the arc-shaped rubber plate 35 so that the arc-shaped rubber plate 35 deforms and fits on the outer wall of the lifting rod 20.

[0035] A method for using a floating support device for positioning in the machining of an aeroengine saddle pad includes the following steps: S10, hydraulic oil enters the cavity: Press down the lifting rod 20 to place the lifting block 21 on the bottom inner wall of the lifting cavity 41, inject hydraulic oil into the support cavity 13, and place the pressing sleeve 33 into the support cavity 13 until the lifting rod 20 can be lifted when the pressing sleeve 33 descends; S20. Sealing installation: Place the positioning component 50 into the positioning ring groove 46, place the rotating sleeve 31 on the pressing sleeve 33, rotate the rotating sleeve 31 so that the bottom of the rotating sleeve 31 contacts the pressing sleeve 33, and at the same time place the two arc-shaped plates 11 on the support housing 10 and connect and fix them with the mounting bolts 12; S30. Rotation test: After S20 is completed, rotate the rotating sleeve 31. Through the threaded fit between the rotating sleeve 31 and the external thread sleeve 32, drive the pressing sleeve 33 to descend, and observe whether the lifting rod 20 can be lifted. If the lifting rod 20 cannot be lifted smoothly, replace the pressing seal head 331 until the lifting rod 20 can be lifted smoothly in this step; S40. Positioning test: When the lifting rod 20 can be lifted smoothly in S30, continuously rotate the rotating sleeve 31 until the lifting rod 20 is lifted to the highest position, driving the positioning component 50 to lift and contact the displacement rod 34. At the same time, check whether the arc-shaped rubber plate 35 is locked on the outer wall of the lifting rod 20. If the arc-shaped rubber plate 35 cannot be locked smoothly, debug the positioning component 50 until the arc-shaped rubber plate 35 can be locked smoothly in this step; S50. Pulling and resetting: Draw lines on the outer wall of the lifting rod 20 with hydraulic oil. Since the arc-shaped rubber plate 35 can deform itself, rotate the rotating sleeve 31 through the displacement rod 34 so that the rubber arc-shaped plate 11 rotates on the outer wall of the lifting rod 20. Then pull multiple displacement rods 34 to reset the positioning component 50 so that it does not contact the displacement rod 34. At the same time, continuously rotate the rotating sleeve 31 until the lifting rod 20 is reset. Then rotate the rotating sleeve 31 in the reverse direction to lift the lifting rod 20 and observe whether the lines disappear. If they do not disappear, paste multiple vertical cleaning strips 351 on the arc-shaped rubber plate 35 until the lines can disappear in this step; S60. Installation and support: After S50 is completed, install the support housing 10 in the working area. After ensuring stability, perform the support process on the workpiece.

[0036] In this embodiment, through the above steps of precisely controlling the filling of hydraulic oil, sealing installation, dynamic rotation test, precise positioning test, adaptive reset mechanism, and cleanliness verification, the efficient operation, precise positioning, adaptive adjustment, and stable support of the device are realized, improving the operation efficiency, stability, and processing accuracy of the floating support device for the machining positioning of the aero-engine saddle pad.

[0037] Specifically, in S20, when the rotating sleeve 31 is placed on the pressing sleeve 33, the arc-shaped rubber sheet 35 is moved, and through the deformation ability of the arc-shaped rubber sheet 35 itself, the plurality of groups of arc-shaped rubber sheets 35 arranged in a circular array pass through the head of the lifting rod 20 and contact the outer wall of the lifting rod 20; When the rotating sleeve 31 rotates in S30 , S40 , and S50 , a force is applied to the side of the displacement rod 34 to drive the rotating sleeve 31 to rotate and adjust around the axis of the rotating sleeve 31 .

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A floating support device for machining and positioning an aircraft engine saddle pad, characterized in that: It comprises a supporting shell (10), wherein a lifting shell (40) is arranged inside the supporting shell (10), wherein the lifting shell (40) is provided with a lifting cavity (41), and wherein a lifting rod (20) is arranged inside the lifting cavity (41); A support cavity (13) for placing hydraulic oil is provided between the support shell (10) and the lifting shell (40); the support cavity (13) is communicated with the lifting cavity (41); a rotary clamping assembly (30) is provided in the support cavity (13); the rotary clamping assembly (30) contacts the outer wall of the lifting rod (20); a positioning assembly (50) is also provided on the lifting shell (40); the rotary clamping assembly (30) descends in the support cavity (13), so that the hydraulic oil enters the lifting cavity (41) from the support cavity (13) to lift the lifting rod (20); the lifting rod (20) contacts the positioning assembly (50), so that the positioning assembly (50) is lifted and contacts the rotary clamping assembly (30), so that the rotary clamping assembly (30) and the lifting rod (20) are in close contact and locked.

2. A floating support device for machining and positioning an aircraft engine saddle pad according to claim 1, characterized in that: The lifting shell (40) is coaxially arranged with the supporting shell (10); the lifting shell (40) is provided with a lifting opening (44); the lifting rod (20) is slidably arranged at the lifting opening (44); a lifting block (21) is arranged at the bottom of the lifting rod (20); the lifting block (21) is slidably arranged in the lifting cavity (41); and the lifting block (21) is in close contact with the lifting cavity (41); A first oil guide pipe (14) is provided at the bottom of the support shell (10), and a second oil guide pipe (43) is provided at the bottom of the lifting shell (40); the first oil guide pipe (14) and the second oil guide pipe (43) are in communication; the first oil guide pipe (14) is in communication with the support cavity (13), and the second oil guide pipe (43) is in communication with the lifting cavity (41).

3. The floating support device for machining and positioning an aircraft engine saddle pad according to claim 1, characterized in that: The rotary clamping assembly (30) comprises a clamping sleeve (33), the clamping sleeve (33) is slidably arranged in the support cavity (13), the outer wall of the lifting shell (40) is provided with a clamping groove (42), the inner wall of the clamping sleeve (33) is provided with a clamping slider (321), the clamping slider (321) is adapted to the clamping groove (42), the clamping sleeve (33) is provided with a clamping sealing head (331), and the clamping sealing head (331) is in close contact with the inner wall of the support cavity (13); An integrally formed external threaded sleeve (32) is arranged on the compression sleeve (33), a rotating sleeve (31) is arranged on the external threaded sleeve (32), the rotating sleeve (31) is threadedly mounted on the outer wall of the external threaded sleeve (32), the rotating sleeve (31) is rotatably mounted on the support shell (10), and the rotating sleeve (31) rotates on the support shell (10), so that the external threaded sleeve (32) and the compression sleeve (33) are adjusted in position in the support cavity (13).

4. A floating support device for machining and positioning an aircraft engine saddle pad according to claim 3, characterized in that: The outer wall of the rotating sleeve (31) is provided with a rotating guide annular groove (311); Two groups of arc-shaped plates (11) are symmetrically arranged on the support shell (10), the rotating sleeve (31) is arranged between the two groups of arc-shaped plates (11), a plurality of groups of rotating guide plates (15) are evenly arranged on the arc-shaped plates (11), the rotating guide plates (15) are adapted to the rotating guide annular grooves (311), and the rotating guide plates (15) are placed in the rotating guide annular grooves (311), so that the rotating sleeve (31) rotates on the support shell (10); The rotating guide plate (15) is provided with a crack initiation groove (151), and the crack initiation groove (151) is not disposed in the rotating guide annular groove (311); The support shell (10) is evenly provided with a plurality of groups of support mounting holes (16); the arc plate (11) is provided with an arc plate mounting hole (111); the arc plate mounting hole (111) is adapted to the support mounting hole (16); and threaded mounting bolts (12) are provided between the support mounting hole (16) and the arc plate mounting hole (111).

5. A floating support device for machining and positioning an aircraft engine saddle pad according to claim 4, characterized in that: The rotating sleeve (31) is provided with a clamping opening (314), and the lifting rod (20) extends from the clamping opening (314); The rotating sleeve (31) is further provided with a plurality of locking grooves (313), the plurality of locking grooves (313) being arranged in a ring array, the locking grooves (313) being provided with penetrating displacement through holes (312), a displacement rod (34) being slidably arranged in the displacement through holes (312), the displacement rod (34) cooperating with the positioning assembly (50) and being locked on the outer wall of the lifting rod (20).

6. A floating support device for machining and positioning an aircraft engine saddle pad according to claim 5, characterized in that: The displacement rod (34) is provided with a displacement plate (343); the outer wall of the displacement rod (34) is sleeved with a square spring (344); the square spring (344) is connected to a side wall of the locking groove (313) facing the displacement through hole (312); the square spring (344) is also connected to the displacement plate (343); the displacement rod (34) is provided with an arc-shaped rubber plate (35); the arc-shaped rubber plate (35) is in contact with the outer wall of the lifting rod (20); Two groups of sealing strips (352) are symmetrically arranged on one end surface of the arc-shaped rubber plate (35) facing the lifting rod (20), and a plurality of groups of vertical cleaning strips (351) are evenly arranged between the two groups of sealing strips (352).

7. A floating support device for machining and positioning an aircraft engine saddle pad according to claim 2, characterized in that: The lifting shell (40) is provided with a positioning ring groove (46), the positioning ring groove (46) is coaxially arranged with the lifting opening (44), and two groups of positioning holes (45) are symmetrically arranged in the positioning ring groove (46); The positioning assembly (50) comprises a positioning ring plate (51), two groups of positioning tubes (56) are symmetrically arranged at the bottom end of the positioning ring plate (51), the positioning ring plate (51) is matched with the positioning ring groove (46), the two groups of positioning tubes (56) are matched with the two groups of positioning holes (45), and positioning rods (55) are arranged in the positioning tubes (56). The lifting block (21) is lifted and contacts the positioning rod (55), so that the positioning ring plate (51) is lifted and contacts the displacement rod (34) for locking.

8. The floating support device for machining and positioning an aircraft engine saddle pad according to claim 7, characterized in that: The displacement rod (34) is provided with a displacement groove (341), the displacement groove (341) is provided with a displacement inclined surface (342), the positioning ring plate (51) is provided with a lifting annular plate (52), the lifting annular plate (52) is provided with a lifting inclined surface (53), the lifting inclined surface (53) is adapted to the displacement inclined surface (342), the lifting inclined surface (53) is lifted, so that the displacement inclined surface (342) is displaced toward the lifting rod (20), thereby driving the arc-shaped rubber plate (35) to be in close contact with the lifting rod (20); Two groups of positioning slide blocks (561) are symmetrically arranged in the positioning tube (56), and two groups of positioning grooves (551) are symmetrically arranged on the outer wall of the positioning rod (55), and the positioning grooves (551) are adapted to the positioning slide blocks (561). A placement circular groove (57) is arranged on the positioning ring plate (51), and a positioning threaded hole is opened on the positioning rod (55), and an adjustment hexagon socket bolt (54) is arranged in the placement circular groove (57), and the adjustment hexagon socket bolt (54) extends into the positioning threaded hole, and the head of the adjustment hexagon socket bolt (54) is rotatably arranged in the placement circular groove (57), and the threaded portion of the adjustment hexagon socket bolt (54) is threadedly connected in the positioning threaded hole.

9. A method for using a floating support device for machining and positioning an aircraft engine saddle pad according to any one of claims 1 to 8, characterized in that: The following steps are involved: S10, hydraulic oil inlet chamber: The lifting rod (20) is pressed downward so that the lifting block (21) is placed on the inner wall of the bottom end of the lifting cavity (41), and hydraulic oil is injected into the support cavity (13), and the clamping sleeve (33) is placed in the support cavity (13) until the clamping sleeve (33) is lowered and the lifting rod (20) can be lifted; S20, seal installation: The positioning assembly (50) is placed in the positioning ring groove (46), and the rotating sleeve (31) is placed on the pressing sleeve (33), and the rotating sleeve (31) is rotated so that the bottom of the rotating sleeve (31) contacts the pressing sleeve (33), and at the same time, the two sets of arc plates (11) are placed on the supporting shell (10) and connected and fixed by installing bolts (12); S30, rotation test: After S20 is completed, the rotating sleeve (31) is rotated, and the threaded engagement of the rotating sleeve (31) and the external threaded sleeve (32) is used to drive the pressing sleeve (33) to descend, and observe whether the lifting rod (20) is lifted. If the lifting rod (20) cannot be lifted smoothly, the pressing sealing head (331) is replaced until the lifting rod (20) can be lifted smoothly in this step. S40, positioning test: When the lifting rod (20) can be lifted smoothly in S30, the rotating sleeve (31) is continuously rotated until the lifting rod (20) is lifted to the highest position, driving the positioning assembly (50) to be lifted and in contact with the displacement rod (34), and at the same time checking whether the arc-shaped rubber plate (35) is locked on the outer wall of the lifting rod (20). If the arc-shaped rubber plate (35) cannot be locked smoothly, the positioning assembly (50) is debugged until the arc-shaped rubber plate (35) can be locked smoothly in this step; S50, pull to reset: Use hydraulic oil to draw lines on the outer wall of the lifting rod (20). Since the arc-shaped rubber plate (35) can deform itself, the displacement rod (34) rotates the rotating sleeve (31) so that the rubber arc plate (11) rotates on the outer wall of the lifting rod (20). Then, pull the multiple sets of displacement rods (34) so ​​that the positioning assembly (50) is reset and does not contact the displacement rods (34). At the same time, continue to rotate the rotating sleeve (31) until the lifting rod (20) is reset. At the same time, rotate the rotating sleeve (31) in the opposite direction so that the lifting rod (20) is lifted. Observe whether the lines disappear. If they do not disappear, stick multiple sets of vertical cleaning strips (351) on the arc-shaped rubber plate (35) until the lines disappear in this step. S60, installation support: After S50 is completed, the support housing (10) is installed in the working area, and after ensuring stability, the workpiece is supported.

10. The method for using the floating support device for machining and positioning an aircraft engine saddle pad according to claim 9, characterized in that: In S20, when the rotating sleeve (31) is placed on the pressing sleeve (33), the arc-shaped rubber plate (35) is moved, and through the deformation ability of the arc-shaped rubber plate (35) itself, a plurality of groups of arc-shaped rubber plates (35) arranged in a ring array pass through the head of the lifting rod (20) and contact the outer wall of the lifting rod (20); When the rotating sleeve (31) rotates in S30, S40, and S50, a force is applied to the side of the displacement rod (34), driving the rotating sleeve (31) to rotate and adjust around the axis of the rotating sleeve (31).

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