CN115256197B - Polishing device and process for curved thin-walled part for aerospace engine - Google Patents
Polishing device and process for curved thin-walled part for aerospace engine Download PDFInfo
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- CN115256197B CN115256197B CN202211178088.7A CN202211178088A CN115256197B CN 115256197 B CN115256197 B CN 115256197B CN 202211178088 A CN202211178088 A CN 202211178088A CN 115256197 B CN115256197 B CN 115256197B
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- polishing
- sliding
- rotating
- seat
- wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B45/00—Means for securing grinding wheels on rotary arbors
- B24B45/003—Accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
- B24B47/06—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by liquid or gas pressure only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/006—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the speed
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a curved thin-walled workpiece polishing device and process for an aerospace engine, and relates to the technical field of blade polishing of the aerospace engine. The invention controls the transverse feeding motion of the polishing wheel, and meanwhile, the polishing wheel deflects at a fixed angle relative to the axis of the blade, thereby adapting to the shape of the blade of the aviation turbine.
Description
Technical Field
The invention relates to the technical field of aviation engine blade polishing, in particular to a polishing device and a polishing process for a curved thin-wall part for an aerospace engine.
Background
The curved thin-walled part in the aircraft engine is provided with a casing, a flame tube and blades on an aircraft turbine, the blades are complex in profile and difficult to polish, fixed parameters are set in the feeding motion, the curved thin-walled part can still adapt to the complex profile of the blades to be machined in large batch, and special equipment is needed to machine the blades for conveniently adjusting the parameters.
The Chinese patent with the publication number of CN114193241A discloses an aero-engine blade grinding and polishing device and a using method thereof, the device comprises a base and a rotating shaft, the center of the upper surface of the base is rotatably connected with the rotating shaft, the top end of the rotating shaft is welded with an installation seat, the upper surface of the installation seat is welded with an inverted concave seat, a first driving motor is fixed on one side wall inside the inverted concave seat through a bolt, an output shaft of the first driving motor penetrates through the inverted concave seat to extend to the outer side and is welded with a polishing frame, and the polishing frame is provided with a polishing mechanism. According to the invention, the grinding mechanism and the polishing mechanism are integrated together, so that one-time grinding and polishing are realized, the working efficiency is improved, and the adjustment in the horizontal direction and the vertical direction can be performed, but the adjustment in the horizontal direction and the adjustment in the vertical direction are independent, so that manual setting is required in the actual process of aiming at the complex profile of the blade.
Disclosure of Invention
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides an aerospace engine is with bent type thin wall spare burnishing device, includes device shell and polishing wheel removal subassembly, and the polishing wheel removal subassembly is installed in the top of device shell.
The device shell is provided with a transverse moving steering assembly, and the polishing wheel moving assembly is arranged on the transverse moving steering assembly; the transverse moving and steering assembly comprises a pushing cylinder, the pushing cylinder is fixedly installed on a device shell, a pushing hinged support is fixedly installed on a telescopic rod of the pushing cylinder, a pushing sliding block is rotatably installed on the pushing hinged support, a bottom hinged support is fixedly installed on the device shell, a bottom sliding block is rotatably installed on the bottom hinged support, a pushing oscillating bar is slidably installed on the bottom sliding block and is slidably connected with the pushing sliding block, a transverse moving sliding seat is fixedly installed on the device shell, a sliding curved rail is slidably installed on the transverse moving sliding seat and is rotatably connected with the pushing oscillating bar, a rotating rod is rotatably installed on the telescopic rod of the pushing cylinder, a sliding seat is slidably installed on the rotating rod, a rotating seat is rotatably installed on the sliding seat, a rotating wheel sliding block is rotatably installed on the rotating seat, a track rotating wheel is rotatably installed on the device shell, a rotating wheel sliding block is slidably installed on the track rotating wheel, and a lower rotating wheel is rotatably installed on the rotating wheel sliding block; fixed mounting has the lift slide on the device shell, slidable mounting has the lift balladeur train on the lift slide, fixed mounting has the lower part slide rail on the lift balladeur train, lower part runner slidable mounting is on the slide rail of lower part, fixed mounting has the upper portion slide rail on the lift balladeur train, slidable mounting has the upper portion runner on the slide rail of upper portion, slidable mounting has the bend slide bar on the slip bend, polishing wheel removes the unit mount on the bend slide bar, the last rotatable mounting of bend slide bar has the connecting rod, rotatable mounting has the slide bar on the connecting rod, slide bar and slip bend sliding connection, the upper portion runner rotates and installs on the slide bar.
Furthermore, the track shape of the sliding curved rail is arc-shaped, and the circle center of the arc-shaped track is located on the front center plane and the rear center plane of the aviation turbine.
Further, rotate on the device shell and install the bottom gear, bottom gear and track runner form gear cooperation, and fixed mounting has the output band pulley on the gear of bottom, rotates on the device shell and installs the regulation and control runner, and fixed mounting has the input band pulley on the regulation and control runner, and the input band pulley passes through driving belt with the output band pulley and is connected.
Further, fixed mounting has the clamping jaw subassembly on the bent rail slide bar, the clamping jaw subassembly includes the anchor clamps seat, anchor clamps seat fixed mounting is on the bent rail slide bar, fixed mounting has the anchor clamps cylinder on the anchor clamps seat, fixed mounting has the anchor clamps ejector pad on the output shaft of anchor clamps cylinder, anchor clamps ejector pad slidable mounting is on the anchor clamps seat, slidable mounting has both ends slider on the anchor clamps seat, both ends slider and anchor clamps ejector pad sliding connection, fixed mounting has the polishing slide rail on the slider of both ends, polishing wheel removes the subassembly and installs on the polishing slide rail.
Furthermore, the polishing wheel moving assembly comprises a straight slide block, the straight slide block is slidably mounted on the polishing slide rail, a rotating slide seat is slidably mounted on the straight slide block, a rotating motor is fixedly mounted on the rotating slide seat, a rotating gear is fixedly mounted on an output shaft of the rotating motor, a rotating toothed ring is fixedly mounted on the straight slide block, the rotating toothed ring is slidably connected with the rotating slide seat, a polishing motor is fixedly mounted on the rotating slide seat, a polishing wheel is fixedly mounted on an output shaft of the polishing motor, an aviation turbine is fixedly mounted on the ground, and the polishing wheel is used for polishing the aviation turbine.
Further, install adjusting part on the throwing aureola removal subassembly, adjusting part is including adjusting the seat, it installs on the polishing slide rail to adjust the seat rotation, slidable mounting has left slip rack on adjusting the seat, fixed mounting has left gear on the throwing aureola, left gear forms rack and pinion cooperation with left slip rack, slidable mounting has adjusting motor on the polishing slide rail, fixed mounting has the regulation pole on adjusting motor's the output shaft, it installs on adjusting the seat to adjust the pole rotation, rotate slide and adjusting motor sliding connection, left side slip rack and regulation pole sliding connection, slidable mounting has right slip rack on adjusting the seat, fixed mounting has right gear on the throwing aureola, right gear forms rack and pinion cooperation with right slip rack, right slip rack and regulation pole sliding connection.
Furthermore, two end sliding blocks are respectively arranged above and below the fixture seat, polishing sliding rails are arranged on the upper and lower two end sliding blocks, an upper sliding rod seat is fixedly arranged on the polishing sliding rail above the fixture seat, and a lower sliding groove seat is fixedly arranged on the polishing sliding rail below the fixture seat.
The invention also discloses a polishing process of the curved thin-walled part for the aerospace engine, which adopts the polishing equipment and comprises the following specific steps:
s1: fixedly placing the aviation turbine on the ground, returning the telescopic rod of the pushing cylinder to the initial end, pushing the telescopic rod of the clamp cylinder to the farthest end, and confirming that the rotating motor, the polishing motor and the adjusting motor are in a closed state;
s2: the pushing device moves towards the aviation turbine so that the blade to be machined penetrates through the upper polishing slide rail and the lower polishing slide rail;
s3: starting a fixture cylinder, shortening the distance between an upper polishing slide rail and a lower polishing slide rail, and confirming the thickness of the polishing blade;
s4: starting the adjusting motor and confirming the machining precision of the polishing blade;
s5: the regulating rotating wheel is rotated to regulate the profile bending degree of the polishing blade, when the track on the track rotating wheel is in a horizontal state, the profile bending degree of the thin-walled part to be processed is also 0, and the straight-surface thin-walled part is processed by setting the position;
s6: starting a polishing motor, polishing the surface of the aviation turbine by a polishing wheel, and simultaneously performing linear feeding motion, wherein the polishing motor rotates reversely every time when a straight slide block slides to the tail end of a track of a polishing slide rail, and controls the polishing wheel to rotate reversely to perform repeated polishing;
s7: starting a push stroke cylinder, controlling a telescopic end of the push stroke cylinder to slowly extend out at a constant speed, and simultaneously starting a rotating motor to control the polishing wheel to deflect at multiple angles so that the wheel surface of the polishing wheel is always adapted to the surface to be polished of the aviation turbine;
s8: closing all power elements, returning the pushing cylinder and the clamp cylinder to the initial positions, retreating the device to be far away from the aviation turbine, rotating the aviation turbine, and polishing the next blade;
s9: and repeating the work of S2-S8, and waiting for the completion of the machining of all the blades on the aviation turbine.
Compared with the prior art, the invention has the beneficial effects that: (1) When the transverse feeding motion of the polishing wheel is controlled, the polishing wheel deflects at a fixed angle relative to the axis of the blade, so that the polishing wheel is suitable for the shape of the blade of the aviation turbine; (2) The method can reduce repeated parameter setting in multiple clamping of the aviation turbine in large-scale polishing production, and reduce workload; (3) The clamping jaw assembly is arranged, so that the clamping jaw assembly can adapt to different blade thicknesses of aviation turbines; (4) The invention is provided with the adjusting component, so that the feeding speed of the front and back movement of the polishing wheel can be adjusted, and the surface machining precision of the turbine blade can be adjusted.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of an aircraft turbine of the present invention.
Fig. 3 is a schematic view of the device housing and the lifting slide of the present invention.
FIG. 4 is a schematic view of the traversing steering assembly of the present invention.
Fig. 5 is a schematic view of the sliding curved rail of the present invention.
Fig. 6 is a schematic view of the installation position of the rotating rod of the present invention.
Fig. 7 is a partially enlarged view of a portion a in fig. 6.
Figure 8 is a schematic view of a polishing wheel movement assembly of the present invention.
Fig. 9 is a partially enlarged view of fig. 8 at B.
Fig. 10 is a partially enlarged view of C in fig. 8.
Fig. 11 is a partially enlarged view of fig. 8 at D.
Reference numerals: 1-a device housing; 2, lifting the sliding seat; 3-a stroke pushing cylinder; 4-pushing the hinged support; 5-pushing the sliding block; 6-bottom hinged support; 7-bottom slide block; 8-pushing the swing rod; 9-a transverse sliding seat; 10-a sliding bend; 11-an aircraft turbine; 12-a rotating rod; 13-a sliding seat; 14-a rotating seat; 15-a runner slide; 16-lower runner; 17-lower slide rail; 18-a lifting carriage; 19-upper slide rail; 20-regulating and controlling the rotating wheel; 21-an input pulley; 22-a drive belt; 23-an output pulley; 24-a bottom gear; 25-an orbital wheel; 26-an upper runner; 27-a slide bar; 28-a connecting rod; 29-a curved track slide bar; 30-a clamp seat; 31-a clamp cylinder; 32-a clamp push block; 33-two end slide blocks; 34-polishing the slide rail; 35-straight slide block; 36-a rotating slide; 37-a rotating motor; 38-a rotating gear; 39-rotating the toothed ring; 40-an adjusting seat; 41-left sliding rack; 42-polishing the motor; 43-left gear; 44-adjusting the motor; 45-adjusting the rod; 46-right sliding rack; 47-right gear; 48-a polishing wheel; 49-upper slide bar seat; 50-lower chute base.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better explanation of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The embodiment is as follows: the polishing device for the curved thin-walled workpiece for the aerospace engine as shown in fig. 1-11 comprises a device shell 1 and a polishing wheel moving assembly, wherein the polishing wheel moving assembly is installed above the device shell 1, a transverse moving steering assembly is installed on the device shell 1, and the polishing wheel moving assembly is installed on the transverse moving steering assembly.
The transverse moving steering assembly comprises a pushing cylinder 3, the pushing cylinder 3 is fixedly installed on a device shell 1, a pushing hinged support 4 is fixedly installed on a telescopic rod of the pushing cylinder 3, a pushing sliding block 5 is rotatably installed on the pushing hinged support 4, a bottom hinged support 6 is fixedly installed on the device shell 1, a bottom sliding block 7 is rotatably installed on the bottom hinged support 6, a pushing swing rod 8 is slidably installed on the bottom sliding block 7, the pushing swing rod 8 is slidably connected with the pushing sliding block 5, a transverse moving sliding seat 9 is fixedly installed on the device shell 1, a sliding curved rail 10 is slidably installed on the transverse moving sliding seat 9, the sliding curved rail 10 is rotatably connected with the pushing swing rod 8, a rotating rod 12 is rotatably installed on the telescopic rod of the pushing cylinder 3, a sliding seat 13 is slidably installed on the rotating rod 12, a rotating seat 14 is rotatably installed on the sliding seat 13, a rotating wheel sliding block 15 is rotatably installed on the rotating seat 14, a rail rotating wheel 25 is rotatably installed on the device shell 1, a rotating wheel sliding block 15 is slidably installed on the rail rotating wheel 25, and a rotating wheel 16 is rotatably installed on the rotating block 15; device shell 1 is last fixed mounting has lift slide 2, slidable mounting has lift balladeur train 18 on lift slide 2, fixed mounting has lower part slide rail 17 on the lift balladeur train 18, lower part runner 16 slidable mounting is on lower part slide rail 17, fixed mounting has upper portion slide rail 19 on the lift balladeur train 18, slidable mounting has upper portion runner 26 on the upper portion slide rail 19, slidable mounting has curved rail slide bar 29 on the slip curved rail 10, polishing wheel removes the subassembly and installs on curved rail slide bar 29, the last connecting rod 28 that rotates of curved rail slide bar 29, the last slidable mounting of connecting rod 28 has slide bar 27, slide bar 27 and slip curved rail 10 sliding connection, upper portion runner 26 rotates and installs on slide bar 27. The pushing stroke cylinder 3 is started to drive the pushing hinged support 4 to move, the pushing hinged support 4 moves left and right to drive the pushing sliding block 5 to move left and right, the pushing sliding block 5 moves to drive the pushing swing rod 8 to swing, the bottom sliding block 7 rotates on the bottom hinged support 6, the pushing swing rod 8 slides on the bottom sliding block 7, the pushing swing rod 8 simultaneously slides on the pushing sliding block 5, and the pushing swing rod 8 drives the sliding curved rail 10 to slide on the transverse sliding seat 9; the pushing cylinder 3 works to drive the rotating rod 12 to move simultaneously, the rotating rod 12 moves to drive the sliding seat 13 to move, the sliding seat 13 moves to drive the rotating seat 14 to move, the rotating seat 14 moves to drive the rotating wheel slide block 15 to move on the track rotating wheel 25, the rotating rod 12 rotates on the pushing cylinder 3 while moving, the sliding seat 13 slides on the rotating rod 12, the rotating seat 14 rotates on the sliding seat 13, the rotating wheel slide block 15 rotates on the rotating seat 14, the rotating wheel slide block 15 slides on the track rotating wheel 25 to drive the lower rotating wheel 16 to move, the lower rotating wheel 16 moves to drive the lower sliding rail 17 to move up and down, the lower sliding rail 17 moves to drive the lifting sliding frame 18 to slide on the lifting sliding seat 2, the lifting sliding frame 18 moves to drive the upper sliding rail 19 to move up and down, the upper sliding rail 19 moves up and down to drive the upper rotating wheel 26 to move up and down to drive the sliding rod 27 to move up and down, the sliding rod 27 moves up and down to drive the connecting rod 28 to swing, the connecting rod 28 swings to drive the curved rail sliding rod 29 to slide on the sliding curved rail 10, and the polishing wheel moving assembly 29 swings up and at the same time, and the polishing wheel moving assembly slides left and the vane 11 to adapt to the aviation vane of the aviation curved rail 10.
The track shape of the sliding curved rail 10 is arc, and the circle center of the arc track is on the front and back central planes of the aviation turbine 11.
The device shell 1 is rotatably provided with a bottom gear 24, the bottom gear 24 and the track rotating wheel 25 form gear fit, the bottom gear 24 is fixedly provided with an output belt wheel 23, the device shell 1 is rotatably provided with a regulating rotating wheel 20, the regulating rotating wheel 20 is fixedly provided with an input belt wheel 21, and the input belt wheel 21 is connected with the output belt wheel 23 through a transmission belt 22. The regulating and controlling rotating wheel 20 is rotated, the regulating and controlling rotating wheel 20 rotates to drive the input belt wheel 21 to rotate, the input belt wheel 21 rotates to drive the transmission belt 22 to move, the transmission belt 22 moves to drive the output belt wheel 23 to rotate, the output belt wheel 23 rotates to drive the bottom gear 24 to rotate, the bottom gear 24 rotates to drive the track rotating wheel 25 to rotate, the initial angle of the track rotating wheel 25 is changed, the initial angle of the track rotating wheel 25 is different, the track height on the track rotating wheel 25 is different, but the linear motion stroke of the sliding curved rail 10 on the transverse sliding seat 9 is not changed, and therefore the regulating and controlling rotating wheel is suitable for curved surface blades with different rotation angles on the aviation turbine 11.
Fixed mounting has the clamping jaw subassembly on the bent rail slide bar 29, the clamping jaw subassembly includes anchor clamps seat 30, anchor clamps seat 30 fixed mounting is on bent rail slide bar 29, fixed mounting has anchor clamps cylinder 31 on anchor clamps seat 30, fixed mounting has anchor clamps ejector pad 32 on anchor clamps cylinder 31's the output shaft, anchor clamps ejector pad 32 slidable mounting is on anchor clamps seat 30, slidable mounting has both ends slider 33 on anchor clamps seat 30, both ends slider 33 and anchor clamps ejector pad 32 sliding connection, fixed mounting has polishing slide rail 34 on both ends slider 33, polishing wheel removes the subassembly and installs on polishing slide rail 34. The fixture cylinder 31 is started to drive the fixture push block 32 to move back and forth, the fixture push block 32 moves to drive the two-end slide blocks 33 to slide on the fixture seat 30, the two-end slide blocks 33 move to drive the polishing slide rails 34 to slide up and down, and the upper polishing slide rail 34 and the lower polishing slide rail 34 move to be close to the blades of the aviation turbine 11 to adapt to different blade thicknesses.
The polishing wheel moving assembly comprises a straight-moving sliding block 35, the straight-moving sliding block 35 is slidably mounted on a polishing sliding rail 34, a rotating sliding seat 36 is slidably mounted on the straight-moving sliding block 35, a rotating motor 37 is fixedly mounted on the rotating sliding seat 36, a rotating gear 38 is fixedly mounted on an output shaft of the rotating motor 37, a rotating gear ring 39 is fixedly mounted on the straight-moving sliding block 35, the rotating gear ring 39 is slidably connected with the rotating sliding seat 36, a polishing motor 42 is fixedly mounted on the rotating sliding seat 36, a polishing wheel 48 is fixedly mounted on an output shaft of the polishing motor 42, the aerial turbine 11 is fixedly mounted on the ground, and the polishing wheel 48 is used for polishing the aerial turbine 11. The rotating motor 37 is started to drive the rotating gear 38 to rotate, the rotating gear 38 rotates on the rotating gear ring 39 and rotates around, the rotating slide seat 36 rotates relative to the straight slide block 35, the polishing wheel 48 also rotates along with the rotating slide seat 36 to change the plane rotation angle of polishing, and the polishing motor 42 is started to drive the rotating gear 38 to rotate.
The polishing wheel moving assembly is provided with an adjusting assembly, the adjusting assembly comprises an adjusting seat 40, the adjusting seat 40 is rotatably installed on a polishing slide rail 34, a left sliding rack 41 is installed on the adjusting seat 40 in a sliding mode, a left gear 43 is fixedly installed on a polishing wheel 48, the left gear 43 and the left sliding rack 41 form gear-rack matching, an adjusting motor 44 is installed on the polishing slide rail 34 in a sliding mode, an adjusting rod 45 is fixedly installed on an output shaft of the adjusting motor 44, the adjusting rod 45 is rotatably installed on the adjusting seat 40, the rotating slide seat 36 is connected with the adjusting motor 44 in a sliding mode, the left sliding rack 41 is connected with the adjusting rod 45 in a sliding mode, a right sliding rack 46 is installed on the adjusting seat 40 in a sliding mode, a right gear 47 is installed on the polishing wheel 48, the right gear 47 and the right sliding rack 46 form gear-rack matching, and the right sliding rack 46 is connected with the adjusting rod 45 in a sliding mode. The polishing motor 42 is started to drive the left gear 43 to rotate, when the left gear 43 rotates, due to the matching relationship between the left gear 43 and the left sliding rack 41, the left gear 43 moves linearly on the left sliding rack 41 to drive the polishing wheel 48 to rotate and simultaneously perform linear feeding motion, the adjusting motor 44 is started to drive the adjusting rod 45 to rotate, the adjusting rod 45 rotates to drive the left sliding rack 41 and the right sliding rack 46 to slide on the adjusting seat 40, and the left sliding rack 41 and the left gear 43 are controlled to be matched or the right sliding rack 46 and the right gear 47 are controlled to be matched, and due to the fact that the tooth numbers of the left gear 43 and the right gear 47 are different, the linear feeding motion speeds of the polishing wheel 48 are also different.
Two-end sliding blocks 33 are respectively arranged above and below the fixture seat 30, polishing sliding rails 34 are arranged on the upper and lower two-end sliding blocks 33, an upper sliding rod seat 49 is fixedly arranged on the polishing sliding rail 34 above, and a lower sliding groove seat 50 is fixedly arranged on the polishing sliding rail 34 below.
The embodiment also provides a polishing process of the curved thin-walled part for the aerospace engine, and the polishing equipment is adopted, and the polishing process specifically comprises the following steps:
s1: the aviation turbine 11 is fixedly placed on the ground, the telescopic rod of the pushing cylinder 3 is returned to the initial end, the telescopic rod of the clamp cylinder 31 is pushed to the farthest end, and the rotating motor 37, the polishing motor 42 and the adjusting motor 44 are confirmed to be in a closed state.
S2: the pushing device moves towards the aviation turbine 11, so that the blade to be processed passes through the upper polishing slide rail 34 and the lower polishing slide rail 34.
S3: and starting the clamp air cylinder 31, shortening the distance between the upper polishing slide rail 34 and the lower polishing slide rail 34, and confirming the thickness of the polishing blade.
S4: the adjustment motor 44 is started to confirm the machining accuracy of the polishing blade.
S5: the regulating rotating wheel 20 is turned to regulate the profile bending degree of the polishing blade, when the track on the track rotating wheel 25 is in a horizontal state, the profile bending degree of the thin-walled workpiece to be processed is also 0, and the straight thin-walled workpiece is processed by setting the position.
S6: and starting the polishing motor 42, starting the polishing wheel 48 to polish the surface of the aviation turbine 11, and simultaneously performing linear feed motion, wherein the polishing motor 42 rotates reversely every time the straight slide block 35 slides to the tail end of the rail of the polishing slide rail 34, and the polishing wheel 48 is controlled to rotate reversely to perform repeated polishing.
S7: and starting the pushing cylinder 3, controlling the telescopic end of the pushing cylinder 3 to slowly extend at a constant speed, and simultaneously starting the rotating motor 37 to control the polishing wheel 48 to deflect at multiple angles, so that the wheel surface of the polishing wheel 48 is always adapted to the surface to be polished of the aviation turbine 11.
S8: and (4) closing all power elements, returning the push stroke cylinder 3 and the clamp cylinder 31 to the initial positions, retreating the device away from the aviation turbine 11, rotating the aviation turbine 11, and polishing the next blade.
S9: and repeating the work of S2-S8, and waiting for the machining of all the blades on the aviation turbine 11 to be completed.
Claims (6)
1. The utility model provides an aerospace engine is with bent type thin wall spare burnishing device, includes device shell (1) and throws aureola and remove the subassembly, throws aureola and removes the subassembly and install the top at device shell (1), its characterized in that:
a transverse moving steering component is arranged on the device shell (1), and a polishing wheel moving component is arranged on the transverse moving steering component;
the transverse moving steering assembly comprises a pushing cylinder (3), the pushing cylinder (3) is fixedly installed on a device shell (1), a pushing hinged support (4) is fixedly installed on a telescopic rod of the pushing cylinder (3), a pushing sliding block (5) is installed on the pushing hinged support (4) in a rotating mode, a bottom hinged support (6) is fixedly installed on the device shell (1), a bottom sliding block (7) is installed on the bottom hinged support (6) in a rotating mode, a pushing swinging rod (8) is installed on the bottom sliding block (7) in a rotating mode, the pushing swinging rod (8) is connected with the pushing sliding block (5) in a sliding mode, a transverse moving sliding seat (9) is fixedly installed on the device shell (1), a sliding curved rail (10) is installed on the transverse moving sliding seat (9) in a sliding mode, the sliding curved rail (10) is connected with the pushing swinging rod (8) in a rotating mode, a rotating rod (12) is installed on a telescopic rod of the pushing cylinder (3) in a rotating mode, a sliding seat (13) is installed on the rotating rod (12) in a sliding mode, a rotating seat (14) is installed on the rotating seat (14) in a rotating mode, a rotating sliding block (25) is installed on the rotating block (15), and a rotating block (15) is installed on the rotating wheel (15) on the lower portion of the rotating block (16) is installed on the rotating block (15); a lifting slide seat (2) is fixedly installed on a device shell (1), a lifting slide seat (18) is installed on the lifting slide seat (2) in a sliding mode, a lower sliding rail (17) is fixedly installed on the lifting slide seat (18), a lower rotating wheel (16) is installed on the lower sliding rail (17) in a sliding mode, an upper sliding rail (19) is fixedly installed on the lifting slide seat (18), an upper rotating wheel (26) is installed on the upper sliding rail (19) in a sliding mode, a curved rail sliding rod (29) is installed on a sliding curved rail (10) in a sliding mode, a polishing wheel moving assembly is installed on the curved rail sliding rod (29), a connecting rod (28) is installed on the curved rail sliding rod (29) in a rotating mode, a sliding rod (27) is installed on the connecting rod (28) in a rotating mode, the sliding rod (27) is connected with the sliding curved rail (10) in a sliding mode, and the upper rotating wheel (26) is installed on the sliding rod (27) in a rotating mode;
the clamp comprises a curved rail sliding rod (29), a clamping jaw assembly, a clamp seat (30) and a clamp cylinder (31), wherein the clamp seat (30) is fixedly installed on the curved rail sliding rod (29), the clamp cylinder (31) is fixedly installed on the clamp seat (30), a clamp push block (32) is fixedly installed on an output shaft of the clamp cylinder (31), the clamp push block (32) is slidably installed on the clamp seat (30), two-end sliding blocks (33) are slidably installed on the clamp seat (30), the two-end sliding blocks (33) are slidably connected with the clamp push block (32), polishing sliding rails (34) are fixedly installed on the two-end sliding blocks (33), and a polishing wheel moving assembly is installed on the polishing sliding rails (34);
polishing wheel removes subassembly includes craspedodrome slider (35), craspedodrome slider (35) slidable mounting is on polishing slide rail (34), slidable mounting has rotation slide (36) on craspedodrome slider (35), fixed mounting has rotating motor (37) on rotation slide (36), fixed mounting has rotating gear (38) on the output shaft of rotating motor (37), fixed mounting has rotating ring gear (39) on craspedodrome slider (35), rotating ring gear (39) and rotation slide (36) sliding connection, fixed mounting has polishing motor (42) on rotation slide (36), fixed mounting has polishing wheel (48) on the output shaft of polishing motor (42), subaerial fixed mounting has aviation turbine (11), polishing wheel (48) are used for polishing aviation turbine (11).
2. The aerospace engine curved thin-walled part polishing device according to claim 1, wherein: the track shape of the sliding curved rail (10) is arc-shaped, and the circle center of the arc-shaped track is positioned on the front central plane and the rear central plane of the aviation turbine (11).
3. The curved thin-walled workpiece polishing device for the aerospace engine as claimed in claim 2, wherein: device shell (1) is gone up to rotate and is installed bottom gear (24), and bottom gear (24) and track runner (25) form the gear cooperation, and fixed mounting has output pulley (23) on bottom gear (24), rotates on device shell (1) and installs regulation and control runner (20), and fixed mounting has input pulley (21) on regulation and control runner (20), and input pulley (21) pass through driving belt (22) with output pulley (23) and be connected.
4. The curved thin-walled workpiece polishing device for the aerospace engine as claimed in claim 3, wherein: install the adjusting part on the polishing wheel removal subassembly, the adjusting part includes regulation seat (40), regulation seat (40) rotate and install on polishing slide rail (34), slidable mounting has left side slip rack (41) on regulation seat (40), fixed mounting has left gear (43) on polishing wheel (48), left gear (43) and left side slip rack (41) form the rack-and-pinion cooperation, slidable mounting has adjusting motor (44) on polishing slide rail (34), fixed mounting has regulation pole (45) on the output shaft of adjusting motor (44), adjust pole (45) and rotate and install on regulation seat (40), it is connected with adjusting motor (44) sliding to rotate slide (36), left side slip rack (41) and regulation pole (45) sliding connection, slidable mounting has right slip rack (46) on regulation seat (40), fixed mounting has right gear (47) on polishing wheel (48), right gear (47) and right slip rack (46) form rack-and-pinion cooperation, right slip rack (46) and regulation pole (45) sliding connection.
5. A curved thin-walled part polishing device for an aerospace engine according to claim 4, wherein: two end sliding blocks (33) are respectively arranged above and below the clamp seat (30), polishing sliding rails (34) are arranged on the two upper and lower end sliding blocks (33), an upper sliding rod seat (49) is fixedly arranged on the polishing sliding rail (34) above, and a lower sliding groove seat (50) is fixedly arranged on the polishing sliding rail (34) below.
6. A polishing process of a curved thin-walled part for an aerospace engine is characterized in that the polishing device of any one of claims 4 to 5 is adopted, and the polishing process comprises the following specific steps:
s1: the aviation turbine (11) is fixedly placed on the ground, the telescopic rod of the pushing cylinder (3) is returned to the initial end, the telescopic rod of the clamp cylinder (31) is pushed to the farthest end, and the rotating motor (37), the polishing motor (42) and the adjusting motor (44) are confirmed to be in a closed state;
s2: the pushing device moves towards the aviation turbine (11) to enable the blade to be machined to penetrate through the upper polishing slide rail (34) and the lower polishing slide rail (34);
s3: starting a clamp cylinder (31), shortening the distance between an upper polishing slide rail (34) and a lower polishing slide rail (34), and confirming the thickness of the polishing blade;
s4: starting the adjusting motor (44) and confirming the machining precision of the polishing blade;
s5: the molded surface bending degree of the polishing blade is adjusted by turning the regulating rotating wheel (20), when the track on the track rotating wheel (25) is in a horizontal state, the molded surface bending degree of the thin-walled part to be processed is also 0, and the straight-surface thin-walled part is processed by setting the position;
s6: starting the polishing motor (42), polishing the surface of the aviation turbine (11) by the polishing wheel (48), and simultaneously performing linear feeding motion, wherein the polishing motor (42) rotates reversely every time the linear sliding block (35) slides to the tail end of the track of the polishing sliding rail (34), and controls the polishing wheel (48) to rotate reversely to perform repeated polishing;
s7: starting a push stroke cylinder (3), controlling a telescopic end of the push stroke cylinder (3) to slowly extend out at a constant speed, and simultaneously starting a rotating motor (37) to control a polishing wheel (48) to deflect at multiple angles, so that the wheel surface of the polishing wheel (48) is always adapted to the surface to be polished of the aviation turbine (11);
s8: closing all power elements, returning the push stroke cylinder (3) and the clamp cylinder (31) to the initial positions, retreating the device to be far away from the aviation turbine (11), rotating the aviation turbine (11), and polishing the next blade;
s9: and repeating the work of S2-S8, and waiting for the machining of all the blades on the aviation turbine (11) to be completed.
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| CN202211178088.7A CN115256197B (en) | 2022-09-27 | 2022-09-27 | Polishing device and process for curved thin-walled part for aerospace engine |
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| CN116038532B (en) * | 2022-12-19 | 2023-09-22 | 中模智造科技江苏有限公司 | Turbine blade burnishing device of invariable throwing power |
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