CN111216023A - Device and method for removing carbon deposition on inner wall of long shaft part - Google Patents
Device and method for removing carbon deposition on inner wall of long shaft part Download PDFInfo
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- CN111216023A CN111216023A CN202010028292.5A CN202010028292A CN111216023A CN 111216023 A CN111216023 A CN 111216023A CN 202010028292 A CN202010028292 A CN 202010028292A CN 111216023 A CN111216023 A CN 111216023A
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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
- B24B27/00—Other grinding machines or devices
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
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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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/005—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes using a magnetic polishing agent
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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
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/10—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work
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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
- B24B41/02—Frames; Beds; Carriages
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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
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting 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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/14—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by liquid or gas pressure
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention provides a device and a method for removing carbon deposition on the inner wall of a long shaft part. The invention comprises the following steps: the grinding and polishing device comprises a lathe bed, and a headstock Z-direction feeding assembly, a headstock assembly, a center frame, a grinding and polishing mechanism and a grinding and polishing feeding assembly which are arranged on the lathe bed. The abrasive brush polishing is used for quickly and efficiently removing the carbon deposition rough machining, and then the magnetic grinding is used for removing the carbon deposition finish machining, so that the inner wall of a workpiece can obtain better surface roughness and carbon deposition removal quality after the machining is finished, and the traditional hot strong alkaline solution soaking removal method is replaced.
Description
Technical Field
The invention relates to the technical field of maintenance of turbine shafts of aero-engines, in particular to a device and a method for removing carbon deposition on the inner wall of a long shaft part.
Background
The aircraft engine turbine shaft is an important component part of a low-pressure worm gear part of an aircraft engine and is also a main transmission part of the aircraft engine. After the turbine shaft of the aircraft engine works in a high-temperature environment for a certain time, fuel oil flowing through the inner surface of the turbine shaft generates a carbon deposition layer on the inner surface, so that the performance of the aircraft engine is reduced, and carbon deposition particles can be doped in the fuel oil to block a subsequent flow passage, so that the safety flight of an aircraft is seriously affected, and even an aviation safety accident is caused. Therefore, the turbine shaft of the aircraft engine needs to be periodically cleaned to remove carbon deposition and other impurities.
At present, the inner wall carbon deposit removing process adopted for the turbine shaft part is a hot strong alkaline solution soaking removing method, and the carbon deposit removal is mainly completed through the processes of manual brushing, hot water oil removal, warm water rinsing, alkaline solution soaking and the like. The method needs more than ten hours to remove the carbon deposition on the inner surface of the turbine shaft, has low efficiency and is not suitable for removing the carbon deposition of the turbine shafts in batches. In order to improve the removal efficiency, an operator manually scrapes the carbon deposit surface before the soaking treatment, but the labor intensity of workers is remarkably increased, and scratches and damages are caused to the inner wall surface of the workpiece to different degrees. The structure of the turbine shaft part of the aero-engine has the characteristics of large length-diameter ratio, complex inner wall structure and the like, so that the thicknesses of carbon deposition layers at different parts of the inner wall of a workpiece are inconsistent, and the problems that partial carbon deposition is not completely removed completely or the surface of partial turbine shaft metal is contacted with hot strong alkali liquor to cause the damage of the surface tissue structure of the workpiece and the like occur under the same treatment condition; the hot strong alkali liquor has strong smell and high temperature, so that the method has potential harm to the health of operators, and meanwhile, a large amount of hot strong alkali waste liquor can pollute the environment, thereby increasing the cost of subsequent waste liquor treatment. The depth-diameter ratio of the inner hole of the turbine shaft of some models is not less than 30, and the consistency of the carbon removal quality is poor because an operator can only evaluate whether the carbon removal quality is qualified by visual observation by means of a searchlight and cannot provide accurate carbon removal quality detection for the carbon removal quality on the inner surface of a workpiece. Therefore, the existing method for removing the carbon deposition by soaking in the hot strong alkaline solution cannot meet the actual production requirement for removing the carbon deposition on the inner wall of the turbine shaft part of the aircraft engine. Therefore, a new device for removing the carbon deposition on the inner wall of the long-shaft part is urgently needed to be invented or developed.
Disclosure of Invention
The invention researches and develops the device for removing the carbon deposition on the inner wall of the long-shaft part aiming at the problems of low processing efficiency, poor removal consistency, severe working environment, high labor intensity of workers, easiness in generating scratches and damages on the surface of a workpiece and high difficulty in detecting the removal quality of the carbon deposition on the inner wall. In order to achieve the purpose, the technical scheme of the invention is as follows:
a long shaft part inner wall carbon deposit remove device includes: a lathe bed, a headstock Z-direction feeding assembly arranged on the lathe bed, a headstock assembly, a center frame, a grinding and polishing mechanism and a grinding and polishing feeding assembly,
the headstock Z-direction feeding assembly is used for completing the Z-direction feeding of the headstock assembly under the action of a first power source,
the headstock assembly is used for fixing one end of a workpiece and driving the workpiece to rotate under the action of a second power source,
the center frame is used for limiting the workpiece to be in the same straight line with the grinding and polishing mechanism during grinding and polishing,
the grinding and polishing mechanism comprises a polishing rod, an endoscope and a replaceable grinding/polishing head, wherein the endoscope is arranged on the polishing rod, the replaceable grinding/polishing head is arranged on the polishing rod, the endoscope is arranged at the front end of the polishing rod, and a signal wire penetrates out of an inner hole of the polishing rod.
The grinding and polishing feeding component is used for completing the X-direction feeding of the grinding and polishing mechanism under the action of a third power source and completing the Z-direction feeding of the grinding and polishing mechanism under the action of a fourth power source,
further, headstock Z is including installing the Z2 sharp module on the lathe bed and fixing the headstock mount pad on Z2 sharp module slip table to feeding the subassembly, install on the headstock mount pad the headstock, first power supply includes direct current gear motor, and it links to each other with linear guide's first lead screw through the shaft coupling.
Further, the headstock assembly comprises a spindle seat fixed on the headstock Z-direction feeding assembly, a workpiece spindle penetrating through the spindle seat and a three-jaw chuck installed at the front end of the workpiece spindle, the second power source comprises a spindle motor, the workpiece spindle is driven by the spindle motor through a synchronous belt, the spindle motor is installed on a motor support, and the motor support is fixed at the rear end of the spindle seat.
Furthermore, the third power source is a first servo motor, and the X-axis feeding assembly of the grinding and polishing feeding assembly further comprises an X1 linear module fixed on the support, a first linear bearing and a second linear bearing arranged on a sliding table of the X1 linear module, and oil scraping plates fixed at the left end and the right end of the first linear bearing and the second linear bearing;
the fourth power source is a second servo motor, and the Z-axis feeding assembly of the grinding and polishing feeding assembly further comprises a Z1 synchronous belt module which is arranged below the X1 linear module through a transfer plate;
the polishing rod passes through first linear bearing and second linear bearing, and the polishing rod tail end passes through the fix with screw on the connecting plate, the connecting plate passes through the screw connection on Z1 hold-in range module.
Further, Z1 hold-in range module is through first slider and second slider flip-chip on the keysets, the keysets passes through the mounting screw on first riser and second riser, first riser and second riser are fixed in the below of X1 sharp module slip table.
Further, the polished rod is slidably mounted in a first linear bearing and a second linear bearing, and the second linear bearing is finely adjusted in the X direction through a fine adjustment screw.
Further, the replaceable grinding/polishing head comprises an abrasive brush polishing head and a magnetic grinding head, the abrasive brush polishing head comprises a first pneumatic motor and an abrasive brush, the magnetic grinding head comprises a second pneumatic motor, a magnetic pole seat, a set screw and a magnetic pole, the first pneumatic motor and the second pneumatic motor are installed at the front end of the polishing rod through an expansion sleeve, the magnetic pole is circular and provided with a groove along the radial direction, and the magnetic pole is installed and fixed in the magnetic pole seat through the set screw.
The invention also provides a carbon deposition removing method of the device for removing the carbon deposition on the inner wall of the long shaft part, which comprises the following steps:
s1, moving the headstock assembly to a preset position through the headstock Z-direction feeding assembly, and clamping a workpiece through the three-jaw chuck;
s2, driving the workpiece to rotate by the headstock assembly;
s3, the grinding, polishing and feeding assembly drives the endoscope to extend into the workpiece, and the deposition condition of carbon deposition on each part of the inner wall of the workpiece is observed and recorded;
s4, selecting a corresponding grinding/polishing head based on the carbon deposition conditions of different degrees, controlling the polishing rod to move forward based on X-direction and Z-direction coordinates of the carbon deposition position fed back by the endoscope, grinding/polishing the position to be cleaned, and during the process, observing for many times by the endoscope, and judging whether to continue cleaning or replace the grinding/polishing head to continue cleaning according to the carbon deposition removal quality.
Further, the step S4 includes the following steps:
s41, aligning the position of the abrasive brush, and determining X-direction and Z-direction coordinates of the abrasive brush in a machine tool coordinate system;
s42, starting the first pneumatic motor to drive the abrasive brush to rotate, setting different processing technological parameters aiming at different carbon deposition conditions of each part according to the observation result of S3, and performing rough machining for removing carbon deposition on the inner wall of the workpiece under the driving of the grinding and polishing X-axis feeding assembly and the grinding and polishing Z-axis feeding assembly;
s43, observing the removal condition of carbon deposition on the inner wall of the workpiece after rough machining by using an endoscope;
s44, taking down the polishing head of the abrasive brush, replacing the polishing head with the magnetic polishing head, and adding magnetic abrasive at the magnetic pole to wrap the magnetic pole;
and S45, starting a second pneumatic motor to drive the magnetic poles to rotate, setting different processing technological parameters aiming at different parts according to the S43 observation structure, and performing finish machining for removing carbon deposition on the inner wall of the workpiece.
S46, observing the removal condition of carbon deposition on the inner wall of the workpiece after finish machining by using an endoscope;
s47, judging whether the carbon deposition removal quality is qualified, if so, executing a step S48, and if not, executing a step S45;
and S48, removing the workpiece to finish machining.
Compared with the prior art, the invention has the following advantages:
1. according to the device for removing the carbon deposition on the inner wall of the long shaft part, disclosed by the invention, the rough machining of the carbon deposition removal is quickly and efficiently carried out through the polishing of the abrasive brush, and then the finish machining of the carbon deposition removal is carried out through the magnetic grinding, so that the inner wall of a workpiece can obtain better surface roughness and carbon deposition removal quality after the machining is finished, and the traditional hot strong alkaline solution soaking removal method is replaced. A small amount of polishing solution is used in the carbon deposition removing process, and the carbon deposition is rapidly removed under the synergistic action of chemistry and machinery, so that the processing efficiency is improved; the method avoids the use of a large amount of alkaline solution in the traditional carbon deposition removal method, can greatly reduce the treatment cost of subsequent waste liquid, and reduces the pollution to the environment; meanwhile, the problem that workpieces are continuously transferred or transported among different working procedures in the traditional carbon deposition removing method is avoided, the labor intensity of workers is greatly reduced, and the working environment of the workers is improved.
2. According to the device for removing the carbon deposition on the inner wall of the long shaft part, the processing mode of removing the carbon deposition through magnetic grinding is adopted, and the magnetic grinding material used can be attached to the surface of a workpiece in a copying manner along the direction of magnetic lines of force after being magnetized, so that the complete removal of the carbon deposition at the heel part of the rib and the inner wall of the workpiece, which are in contact with each other, is realized aiming at the workpiece with the inner wall of which the complex structures such as axial ribs are uniformly distributed.
3. According to the device for removing the carbon deposition on the inner wall of the long shaft part, the carbon deposition condition of the inner wall of the workpiece is observed through the endoscope before machining, corresponding grinding and polishing time and process parameters are determined according to the difference of the carbon deposition thickness of each part of the inner wall, machining efficiency is improved, meanwhile, the workpiece scrapping caused by scratching and damaging the inner wall surface in the carbon deposition removing process is avoided, machining quality detection is carried out through the endoscope after machining, manual detection is replaced, labor intensity of workers is reduced, and machining quality requirements are met.
Based on the reason, the method can be widely popularized in the technical field of maintenance of the turbine shaft of the aeroengine.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a device for removing carbon deposition on the inner wall of a long shaft part of an aircraft engine according to an embodiment of the invention.
Fig. 2 is a front view of the device for removing carbon deposition on the inner wall of the long shaft part of the aircraft engine according to the embodiment of the invention.
Fig. 3 is a sectional view a-a of fig. 2.
FIG. 4 is a schematic view of a magnetic polishing head.
FIG. 5 is a schematic view of magnetic grinding to remove carbon deposition.
In the figure: 1. a bed body; 2. a headstock Z-direction feeding assembly; 3. a headstock assembly; 4. a workpiece; 5. a center frame; 6. a grinding and polishing mechanism; 7. an endoscope; 8. grinding and polishing the X-axis feeding assembly; 9. grinding and polishing the Z-axis feeding assembly; 10. a fixed block; 11. fine adjustment of screws; 12. a first rail base; 13. a first support base; 14. a first ball screw; 15. a first linear guide rail; 16. a first slider; 17. a first lead screw nut seat; 18. a first lead screw nut; 19. a first fixed seat; 20. a first coupling; 21. a motor mounting plate; 22. a DC gear motor; 23. z2 straight line module sliding table; 24. a headstock mounting base; 25. a motor bracket; 26. a driven pulley; 27. a first synchronization belt; 28. a driving pulley; 29. a spindle motor; 30. a main shaft seat; 31. a workpiece spindle; 32. a three-jaw chuck; 33. a support; 34. an abrasive brush; 35. expanding sleeves; 36. a first pneumatic motor; 37. a support; 38. an X1 linear module; 39. a first linear bearing; 40. an X1 linear module sliding table; 41. a second linear bearing; 42. a scraper plate; 43. a second linear guide; 44. a second slider; 45. polishing the rod; 46. a screw; 47. a connecting plate; 48. a second synchronous belt fixing plate; 49. a guide rail section bar; 50. a second synchronous belt; 51. a second vertical plate; 52. a screw; 53. an adapter plate; 54. a fourth slider; 55. a motor base; 56. a second servo motor; 57. a third slider; 58. a first vertical plate; 59. a first synchronous belt fixing plate; 60. a second rail base; 61. a second support seat; 62. a second ball screw; 63. a second lead screw nut; 64. a second lead screw nut seat; 65. a second fixed seat; 66. a second coupling; 67. a first servo motor; 68. a magnetic pole; 69. tightening the screw; 70. a magnetic pole base; 71. a second pneumatic motor; 72. a magnetic abrasive.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, an embodiment of the present invention provides a device for removing carbon deposition on an inner wall of a long shaft part, including: a lathe bed 1, a headstock Z-direction feeding assembly 2 arranged on the lathe bed 1, a headstock assembly 3, a center frame 5, an abrasive polishing mechanism 6 and an abrasive polishing feeding assembly,
the headstock Z-direction feeding assembly 2 is used for completing the Z-direction feeding of the headstock assembly 3 under the action of a first power source on the headstock assembly 3 fixed on the headstock Z-direction feeding assembly,
the headstock assembly 3 is used for fixing one end of the workpiece 4 and driving the workpiece 4 to rotate under the action of a second power source,
the central frame 5 is used for limiting the workpiece 4 to be in the same straight line with the grinding and polishing mechanism during grinding and polishing,
the grinding and polishing mechanism 6 comprises a polishing rod 45, an endoscope 7 arranged on the polishing rod and a replaceable grinding/polishing head arranged on the polishing rod, wherein the endoscope 7 is arranged at the front end of the polishing rod 45, and a signal wire penetrates out of an inner hole of the polishing rod 45.
The grinding and polishing feeding component is used for completing the X-direction feeding of the grinding and polishing mechanism under the action of a third power source and completing the Z-direction feeding of the grinding and polishing mechanism under the action of a fourth power source,
headstock Z is including installing the Z2 sharp module on lathe bed 1 and fixing headstock mount pad 24 on Z2 sharp module slip table 23 to feeding subassembly 2, install on headstock mount pad 24 the headstock, first power supply includes DC gear motor 22, and it links to each other with first lead screw 14 through first shaft coupling 20. Direct current gear motor 22 passes through motor mounting panel 21 to be fixed at Z2 sharp module left end, Z2 sharp module is including fixing first track base 12 on lathe bed 1, fixing first linear guide 15 on first track base 12, slidable mounting is at first slider 16 on first linear guide 15, fix slip table 23 on first slider 16, fix first lead screw nut seat 17 and first lead screw nut 18 in slip table 23 below, fix first fixing base 19 and first supporting seat 13 on first track base 12, and pass first lead screw nut and fix first ball 14 in first fixing base 19, direct current gear motor 22 drives headstock subassembly 3 along Z to removing to satisfy the processing of different grade type work piece 4.
The headstock assembly 3 comprises a spindle seat 30 fixed on the headstock mounting seat 24, a workpiece spindle 31 penetrating through the spindle seat 30 and a three-jaw chuck 32 mounted at the front end of the workpiece spindle 31, the second power source comprises a spindle motor 29, the workpiece spindle 31 is driven by the spindle motor 29 through a synchronous belt, the spindle motor 29 is mounted on a motor support 25, the motor support 25 is fixed at the rear (left) end of the spindle seat 30, a driving pulley 28 is fixed on an output shaft of the spindle motor 29, and a driven pulley 26 is mounted at the left end of the workpiece spindle 31.
The steady rest 5 is mounted on a support 33.
The third power source is a first servo motor 67, the X-axis feeding assembly 8 of the grinding and polishing feeding assembly further comprises an X1 linear module 38 fixed on the support 37, a first linear bearing 39 and a second linear bearing 41 which are arranged on the X1 linear module sliding table 40, and oil scraping plates 42 which are fixed at the left end and the right end of the first linear bearing 39 and the second linear bearing 41, the X1 linear module 38 comprises a second rail base 60 fixed on the support 37, a second linear guide rail 43 fixed on the second rail base 60, a second sliding block 44 slidably arranged on the second linear guide rail 43, the X1 linear module sliding table 40 arranged on the second sliding block 44, a second lead screw nut base 64 and a second lead screw nut 63 fixed below the X1 linear module sliding table 40, a second fixed base 65 and a second supporting base 61 fixed on the second rail base 60, and a second ball screw 62 which passes through the second lead screw nut 63 and is fixed in the second fixed base 65, the first servomotor 67 is connected to the second ball screw 62 via a second coupling 66.
The fourth power source is a second servo motor 56, the Z-axis feeding assembly 9 of the grinding and polishing feeding assembly further comprises a Z1 synchronous belt module which is installed below the X1 linear module 38 through an adapter plate 53, the Z1 synchronous belt module is reversely mounted on the adapter plate 53 through a third slide block 57 and a fourth slide block 54, the adapter plate 53 is fixed on a first vertical plate 58 and a second vertical plate 51 through screws 52, the first vertical plate 58 and the second vertical plate 51 are fixed below a sliding table 38 of the X1 linear module, the Z1 synchronous belt module comprises a third slide block 57 and a fourth slide block 54, a guide rail profile 49 which is installed on the third slide block 57 and the fourth slide block 54, a first synchronous belt fixing plate 59 and a second synchronous belt fixing plate 48 which are installed at two ends of the guide rail profile 49, a second synchronous belt 50 which is fixed on the first synchronous belt fixing plate 59 and the second synchronous belt fixing plate 48, the second servo motor 56 is installed on a motor base 55, the motor mount 55 is mounted on a third slider 57.
The grinding and polishing mechanism 6 comprises a polishing rod 45 penetrating through a first linear bearing 39 and a second linear bearing 41, the tail end of the polishing rod 45 is fixed on an attachment plate 47 through a screw 46, and the attachment plate 47 is connected on a Z1 synchronous belt module through a screw.
The replaceable grinding/polishing head comprises a polishing head of an abrasive brush 34 and a magnetic grinding head as shown in fig. 4, the polishing head of the abrasive brush 34 comprises a first pneumatic motor 36 fixed at the front end of a polishing rod 45 through an expanding sleeve 35 and the abrasive brush 34 arranged on an output shaft of the first pneumatic motor 36, the magnetic grinding head comprises a second pneumatic motor 71 fixed at the front end of the polishing rod 45 through the expanding sleeve 35 and a magnetic pole 68 fixed on a magnetic pole seat 70 through a set screw 69, the magnetic pole seat 70 is arranged on the output shaft of the second pneumatic motor 71, the tail end of the polishing rod 45 is fixed on a connecting plate 47 through a screw, and the connecting plate 47 is fixed at the right end of a Z1 synchronous belt module.
The invention also provides a carbon deposition removing method of the device for removing the carbon deposition on the inner wall of the long shaft part, which comprises the following steps:
s1, starting the machine tool, moving the headstock component 3 to a proper position along the Z direction through the headstock Z direction feeding component 2, and clamping the workpiece 4;
s2, starting the spindle motor 29 to drive the workpiece 4 to rotate;
s3, controlling the grinding and polishing X-axis feeding assembly 8 and the grinding and polishing Z-axis feeding assembly 9 to drive the endoscope 7 to stretch into the inner hole of the workpiece 4, and observing and recording the deposition condition of carbon deposition at each part of the inner wall of the workpiece 4;
s4, selecting corresponding grinding/polishing heads based on the carbon deposition conditions of different degrees, controlling the polishing rod 45 to move forward based on X-direction and Z-direction coordinates of the deposition position fed back by the endoscope 7, grinding/polishing the position to be cleaned, observing for many times by the endoscope 7 during the process, and judging whether to continue cleaning or replace the grinding/polishing heads to continue cleaning according to the carbon deposition removal quality.
Wherein the step S4 includes the following steps:
s41, aligning the position of the abrasive brush 34, and determining X-direction and Z-direction coordinates of the abrasive brush 34 in a machine tool coordinate system;
s42, starting the first pneumatic motor 36 to drive the abrasive brush 34 to rotate, setting different processing technological parameters aiming at different carbon deposition conditions of each part according to the observation result of S3, and performing rough machining for removing carbon deposition on the inner wall of the workpiece 4 under the driving of the grinding and polishing X-axis feeding component 8 and the grinding and polishing Z-axis feeding component 9;
s43, observing the removal condition of the carbon deposit on the inner wall of the workpiece 4 after rough machining by using the endoscope 7;
s44, taking down the polishing head of the abrasive brush 34, replacing the polishing head with a magnetic polishing head, and adding the magnetic abrasive 72 at the magnetic pole to enable the magnetic abrasive 72 to wrap the magnetic pole;
and S45, starting the second pneumatic motor 71 to drive the magnetic poles to rotate, setting different processing technological parameters aiming at different parts according to the S43 observation structure, and performing finish machining for removing carbon deposition on the inner wall of the workpiece 4 as shown in FIG. 5.
S46, observing the carbon deposit removal condition of the inner wall of the workpiece 4 after finish machining by using the endoscope 7;
s47, judging whether the carbon deposition removal quality is qualified, if so, executing a step S48, and if not, executing a step S45;
and S48, removing the workpiece 4 and finishing the machining.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A long axis class part inner wall carbon deposit remove device which characterized in that includes:
the grinding and polishing machine comprises a machine body, and a headstock Z-direction feeding assembly, a headstock assembly, a center frame, a grinding and polishing mechanism and a grinding and polishing feeding assembly which are arranged on the machine body.
The headstock Z-direction feeding assembly is used for completing Z-direction feeding of the headstock assembly under the action of a first power source;
the headstock assembly is used for fixing one end of a workpiece and driving the workpiece to rotate under the action of a second power source;
the center frame is used for limiting the workpiece to be in the same straight line with the grinding and polishing mechanism during grinding and polishing;
the grinding and polishing mechanism comprises a polishing rod, an endoscope and a replaceable grinding/polishing head, wherein the endoscope is arranged on the polishing rod, the replaceable grinding/polishing head is arranged on the polishing rod, the endoscope is arranged at the front end of the polishing rod, and a signal wire penetrates out of an inner hole of the polishing rod.
The grinding and polishing feeding component is used for completing the X-direction feeding of the grinding and polishing mechanism on the grinding and polishing feeding component under the action of a third power source and completing the Z-direction feeding of the grinding and polishing mechanism under the action of a fourth power source.
2. The device for removing carbon deposit on the inner wall of a long shaft part as claimed in claim 1, wherein the headstock Z-direction feeding assembly comprises a Z2 linear module arranged on the lathe bed and a headstock mounting seat fixed on a sliding table of the Z2 linear module, the headstock mounting seat is provided with the headstock, and the first power source comprises a direct-current speed reduction motor which is connected with a first lead screw of the linear guide rail through a coupler.
3. The device for removing carbon deposition on the inner wall of a long shaft part as claimed in claim 1, wherein the headstock assembly comprises a spindle base fixed on the headstock Z-direction feeding assembly, a workpiece spindle penetrating through the spindle base and a three-jaw chuck mounted at the front end of the workpiece spindle, the second power source comprises a spindle motor, the workpiece spindle is driven by the spindle motor through a synchronous belt, the spindle motor is mounted on a motor support, and the motor support is fixed at the rear end of the spindle base.
4. The device for removing carbon deposition on the inner wall of a long shaft part as claimed in claim 1, wherein the third power source is a first servo motor, the X-axis feeding assembly of the grinding and polishing feeding assembly further comprises an X1 linear module fixed on the support, a first linear bearing and a second linear bearing mounted on a sliding table of the X1 linear module, and oil scraping plates fixed at the left end and the right end of the first linear bearing and the second linear bearing;
the fourth power source is a second servo motor, and the Z-axis feeding assembly of the grinding and polishing feeding assembly further comprises a Z1 synchronous belt module which is arranged below the X1 linear module through a transfer plate;
the polishing rod passes through first linear bearing and second linear bearing, and the polishing rod tail end passes through the fix with screw on the connecting plate, the connecting plate passes through the screw connection on Z1 hold-in range module.
5. The device for removing carbon deposition on the inner wall of the long shaft part as claimed in claim 4, wherein the Z1 synchronous belt module is inversely installed on the adapter plate through a first sliding block and a second sliding block, the adapter plate is installed on a first vertical plate and a second vertical plate through screws, and the first vertical plate and the second vertical plate are fixed below the X1 linear module sliding table.
6. The device for removing carbon deposition on the inner wall of a long shaft part as claimed in claim 4, wherein the polished rod is slidably mounted in a first linear bearing and a second linear bearing, and the second linear bearing is finely adjusted in the X direction by a fine adjustment screw.
7. The device for removing carbon deposit on the inner wall of long-axis parts according to claim 1, wherein the replaceable grinding/polishing head comprises an abrasive brush polishing head and a magnetic grinding head, the abrasive brush polishing head comprises a first pneumatic motor and an abrasive brush, the magnetic grinding head comprises a second pneumatic motor, a magnetic pole seat, a set screw and a magnetic pole, the first pneumatic motor and the second pneumatic motor are arranged at the front end of the polishing rod through an expansion sleeve, the magnetic pole is circular and is provided with a groove along the radial direction, and the magnetic pole is fixedly arranged in the magnetic pole seat through the set screw.
8. The carbon deposit removing method of the carbon deposit removing device on the inner wall of the long shaft part as claimed in any one of claims 1 to 7 comprises the following steps:
s1, moving the headstock assembly to a preset position through the headstock Z-direction feeding assembly, and clamping a workpiece through the three-jaw chuck;
s2, driving the workpiece to rotate by the headstock assembly;
s3, the grinding, polishing and feeding assembly drives the endoscope to extend into the workpiece, and the deposition condition of carbon deposition on each part of the inner wall of the workpiece is observed and recorded;
s4, selecting a corresponding grinding/polishing head based on the carbon deposition conditions of different degrees, controlling the polishing rod to move forward based on X-direction and Z-direction coordinates of the carbon deposition position fed back by the endoscope, grinding/polishing the position to be cleaned, and during the process, observing for many times by the endoscope, and judging whether to continue cleaning or replace the grinding/polishing head to continue cleaning according to the carbon deposition removal quality.
9. The method according to claim 8, wherein the step S4 comprises the steps of:
s41, aligning the position of the abrasive brush, and determining X-direction and Z-direction coordinates of the abrasive brush in a machine tool coordinate system;
s42, starting the first pneumatic motor to drive the abrasive brush to rotate, setting different processing technological parameters aiming at different carbon deposition conditions of each part according to the observation result of S3, and performing rough machining for removing carbon deposition on the inner wall of the workpiece under the driving of the grinding and polishing X-axis feeding assembly and the grinding and polishing Z-axis feeding assembly;
s43, observing the removal condition of carbon deposition on the inner wall of the workpiece after rough machining by using an endoscope;
s44, taking down the polishing head of the abrasive brush, replacing the polishing head with the magnetic polishing head, and adding magnetic abrasive at the magnetic pole to wrap the magnetic pole;
and S45, starting a second pneumatic motor to drive the magnetic poles to rotate, setting different processing technological parameters aiming at different parts according to the S43 observation structure, and performing finish machining for removing carbon deposition on the inner wall of the workpiece.
S46, observing the removal condition of carbon deposition on the inner wall of the workpiece after finish machining by using an endoscope;
s47, judging whether the carbon deposition removal quality is qualified, if so, executing a step S48, and if not, executing a step S45;
and S48, removing the workpiece to finish machining.
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| CN202010028292.5A CN111216023A (en) | 2020-01-10 | 2020-01-10 | Device and method for removing carbon deposition on inner wall of long shaft part |
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| CN202010028292.5A CN111216023A (en) | 2020-01-10 | 2020-01-10 | Device and method for removing carbon deposition on inner wall of long shaft part |
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