CN112008476B - Machining deformation control method for thin-wall shaft part - Google Patents
Machining deformation control method for thin-wall shaft part Download PDFInfo
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- CN112008476B CN112008476B CN202010890906.0A CN202010890906A CN112008476B CN 112008476 B CN112008476 B CN 112008476B CN 202010890906 A CN202010890906 A CN 202010890906A CN 112008476 B CN112008476 B CN 112008476B
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000003754 machining Methods 0.000 title abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 229920001971 elastomer Polymers 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 239000012528 membrane Substances 0.000 claims 1
- 239000000741 silica gel Substances 0.000 claims 1
- 229910002027 silica gel Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 41
- 239000000463 material Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
A method for controlling machining deformation of a thin-wall shaft part comprises the following steps: step A, providing a first plug to plug one end of a hollow inner cavity of the thin-wall shaft part, step B, providing a second plug to be inserted into the other end of the inner cavity of the thin-wall shaft part under the liquid level of oil so as to ensure that the inner cavity of the thin-wall shaft part is filled with the oil, step C, taking the thin-wall shaft part in the step B out of an oil groove, wiping the thin-wall shaft part, and then processing the outer circular surface, step D, after the processing of the outer circular surface in the step C is completed, firstly removing the first plug, and then removing the second plug. According to the method for controlling the machining deformation of the thin-wall shaft part, the inner cavity of the thin-wall shaft part is filled with the oil liquid, so that the machining deformation is controlled and reduced, the machining of the molded surface of the outer circular surface of the part can be finished at one time, and the production efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a method for controlling deformation during turning or grinding machining of an outer circular surface of a thin-wall hollow through hole slender shaft part.
Background
With the advancement of material science, the wall thickness of shaft parts, especially shaft parts with hollow through holes for aircraft engines, tends to be smaller and smaller, and the outer circular surface of the shaft parts is generally provided with multiple groups of profiles. Fig. 1 is a schematic cross-sectional structural view of a thin-walled shaft part for an aircraft engine, and as shown in fig. 1, the length L1 of the thin-walled shaft part 100 is greater than 800mm, the diameter D1 of the outer circle of the shaft body is 26mm, the length-diameter ratio exceeds 30, the wall thickness of the shaft body is not greater than 1.5mm, and the requirement of the outer circle run-out is not greater than 0.05. For the thin-wall shaft part 100 shown in fig. 1, in the existing production process, the outer circle of the shaft body is formed by turning, and part of the step-shaped profile is prepared by grinding, because the thin-wall shaft part 100 has a thin wall and poor rigidity, and is very easy to bend and deform when stressed in the processing process, in order to guarantee the jumping requirement of the outer circle, in the existing production processing process, a supporting device is usually required to be arranged at the position of the shaft body, so that the rigidity is guaranteed, and the processing needs to be performed in a segmented manner, thereby affecting the production efficiency. In addition, the outer circumferential surface of the thin-walled shaft part 100 may be further provided with at least one set of welded and connected boss portions 101, and for the boss portions 101, grinding is required to meet the requirement of outer circumferential surface run-out, so that the processing difficulty is very high.
The applicant submits a patent application with the application number of 201910997021.8 and the invention name of 'a thin-wall hollow slender shaft part outer circular surface turning deformation control method and device' in 2019, 10 months and 20 days, and in the technical scheme of the application, the thin-wall hollow slender shaft part turning deformation control method is provided.
However, because the profiles of the outer circular surfaces of the shaft parts with the hollow through holes of different aero-engines have large differences, in the production process, if the mandrel provided by 201910997021.8 is used for different shaft parts with the same inner diameter, the applicant finds that flutter occurs, and therefore the product yield is seriously affected. In addition, the use of 201910997021.8 provides a mandrel that is relatively labor intensive to insert and remove due to the interference fit.
Disclosure of Invention
The invention aims to provide a method for controlling the machining deformation of a thin-wall shaft part, so as to reduce or avoid the problems.
In order to solve the technical problem, the invention provides a method for controlling the processing deformation of a thin-wall shaft part, wherein the length L1 of the thin-wall shaft part is more than 800mm, the excircle diameter D1 of a shaft body is 26mm, the length-diameter ratio is more than 30, the wall thickness of the shaft body is not more than 1.5mm, and the excircle surface of the thin-wall shaft part is provided with at least one group of boss parts connected by welding, and the method comprises the following steps:
step A, providing a first plug to plug one end of a hollow inner cavity of the thin-wall shaft part,
step B, providing an oil groove, injecting oil into the oil groove, immersing the thin-wall shaft part into the oil in the oil groove to ensure that the inner cavity of the thin-wall shaft part is filled with the oil, then providing a second plug which is inserted to the other end of the inner cavity of the thin-wall shaft part under the liquid level of the oil to ensure that the inner cavity of the thin-wall shaft part is filled with the oil,
step C, taking the thin-wall shaft part in the step B out of the oil groove, wiping the thin-wall shaft part, processing the outer circular surface,
and D, after the outer circular surface of the step C is processed, placing the thin-wall shaft part above an oil groove, taking down the first plug and then the second plug, and enabling the oil product in the inner cavity of the thin-wall shaft part to flow out to the oil groove.
Preferably, in step a, the first plug includes a first conical body and a first cylindrical portion connected in sequence, the diameter of the first cylindrical portion is 0.5-0.8mm smaller than the diameter of the inner cavity of the thin-walled shaft part, and the end face of the first cylindrical portion is provided with a threaded hole.
Preferably, in step a, when the first plug is assembled, an O-ring is first sleeved on the first conical surface body, and a maximum diameter of the O-ring is greater than a diameter of an inner cavity of the thin-walled shaft part.
Preferably, in step a, a rubber film is sleeved on the first plug from a side of the first conical body before the O-ring is sleeved.
Preferably, in step a, an annular rubber pad is further disposed outside the first cylindrical portion, and an outer diameter of the rubber pad is larger than a diameter of the inner cavity of the thin-walled shaft component.
Preferably, in step B, the second plug includes a body portion having a hollow through hole, a deformation body made of silicone rubber inserted into the body portion, and an internal nut screwed with the body portion for fixing the deformation body, the body portion includes a second conical body and a second cylindrical portion connected in series, the body portion is provided with a hollow through hole, the deformation body is inserted into the hollow through hole of the body portion, and the internal nut is used for compressing the deformation body. The deformation body comprises a gate-shaped guide part and a port-shaped exhaust deformation part which extend to the inner side of the second conical part and are connected in sequence, and the port-shaped exhaust deformation part is provided with an exhaust port on the side facing the second conical part.
Preferably, in step B, the inner hole of the inner nut is a regular hexagonal hole.
Preferably, in step B, the inner bore of the inner nut is a threaded bore.
Preferably, in step B, the mouth-shaped exhaust deformation part is a cylindrical cavity with the outer diameter of 8-10mm, and the exhaust port is a hole with the diameter of 1-2 mm.
Preferably, in step D, after the oil in the inner cavity of the thin-walled shaft part flows out, the inner nut is unscrewed from the body part, and then a handle bar is connected with the body part, so that the body part is removed.
According to the method for controlling the machining deformation of the thin-wall shaft part, the inner cavity of the thin-wall shaft part is filled with the oil, so that the part is supported, the integral rigidity of a workpiece is enhanced, the machining deformation is controlled and reduced, the molding surface of the outer circular surface of the part can be machined at one time, and the production efficiency is greatly improved. In addition, for different shaft parts with the same inner diameter, the natural frequency of the shaft parts during machining can be adjusted by replacing different oil products when needed, so that the situation of flutter is effectively avoided.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein,
FIG. 1 is a schematic cross-sectional structural view of a thin-walled shaft component for an aircraft engine;
FIG. 2 is a schematic structural diagram illustrating a working condition of a device used in a method for controlling machining deformation of a thin-walled shaft component according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of the first plug of fig. 2;
fig. 4 is a schematic cross-sectional structural view of the second plug of fig. 2.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
FIG. 1 is a schematic cross-sectional structural view of a thin-walled shaft component for an aircraft engine; FIG. 2 is a schematic structural diagram illustrating a working condition of a device used in a method for controlling machining deformation of a thin-walled shaft component according to an embodiment of the present invention; fig. 3 is a schematic perspective view of the first plug of fig. 2; fig. 4 is a schematic cross-sectional structural view of the second plug of fig. 2. Referring to fig. 1-4, the present invention provides a method for controlling deformation of a thin-walled shaft part, wherein the length L1 of the thin-walled shaft part 100 is greater than 800mm, the diameter D1 of the outer circle of the shaft body is 26mm, the length-diameter ratio exceeds 30, the wall thickness of the shaft body is not greater than 1.5mm, the outer circle surface of the thin-walled shaft part 100 is provided with at least one set of welded boss portions 101, and the method comprises the following steps:
step a, providing a first plug 2 to plug one end of the hollow inner cavity of the thin-walled shaft component 100, referring to fig. 3, where the first plug 2 may include a first conical body 21 and a first cylindrical portion 22 connected in sequence, and a maximum diameter of the first plug 2 (i.e., a diameter of the first cylindrical portion 22) may be 0.5 to 0.8mm smaller than a diameter of the inner cavity of the thin-walled shaft component 100, so as to prevent the first plug 2 from scratching the surface of the inner cavity of the thin-walled shaft component 100 during assembly and disassembly, when the first plug 2 is assembled, an O-ring (not shown in the figure) may be sleeved on the first conical body 21, and the maximum diameter of the O-ring is larger than the diameter of the inner cavity of the thin-walled shaft component 100, and then the first conical body 21 is inserted into the inner cavity of the thin-walled shaft component 100 until the first plug 2 completely enters the inner cavity of the thin-walled shaft component 100, the end surface of the first cylindrical portion 22 is provided with a threaded hole 221 so that a handle bar (not shown) can be connected through the threaded hole 221 to facilitate the operation of the first plug 2.
Before the O-ring is applied, a rubber film (not shown) may be applied from the side of the first conical body 21 to the first plug 2, and the rubber film may be made of a material similar to a condom or a rubber glove for medical operation, so as to increase the sealing performance between the first cylindrical portion 22 and the inner cavity of the thin-walled shaft element 100, and increase the friction between the first conical body 21 and the O-ring, thereby increasing the connection tightness between the first conical body 21 and the O-ring during the insertion process.
Referring to fig. 2 and 3, in order to avoid the interference of the first plug 2 to the machine tool tip as much as possible during the machining process, an annular rubber pad 3 may be further disposed outside the first cylindrical portion 22, and the outer diameter of the rubber pad 3 is larger than the diameter of the inner cavity of the thin-walled shaft part 100, so that on one hand, the sealing effect on the first cylindrical portion 22 can be further increased, and on the other hand, the interference on the machine tool tip can be effectively avoided.
Step B, providing an oil groove (not shown in the figure), injecting oil into the oil groove, immersing the thin-wall shaft part 100 into the oil in the oil groove, so that the inner cavity of the thin-wall shaft part 100 is filled with the oil, then providing a second plug 4, inserting the second plug 4 into the other end of the inner cavity of the thin-wall shaft part 100 under the liquid level of the oil, thereby ensuring that the inner cavity of the thin-wall shaft part 100 is filled with the oil,
in the course of processing the thin-walled shaft part 100 from a blank to a finished product, a number of processes may be involved, in the transfer between the working procedures and the warehousing, particularly in the transfer across workshops, the parts are generally oiled, the invention utilizes the existing oil groove to fill the inner cavity of the thin-wall shaft part 100 with oil products (rust preventive oil or lubricating oil, etc.), then, the second plug is used for plugging the inner cavity of the thin-wall shaft part 100, so that the inner cavity of the thin-wall shaft part 100 is filled with oil products, thus, when the outer circular surface is machined, on the one hand, the weight of the thin-walled shaft component 100 is increased, can effectively avoid the situation of vibration, on the other hand, the oil filled in the inner cavity can be transferred and dispersed in the processing process of the outer circular surface, the cutting/grinding force borne by the shaft body of the thin-walled shaft part 100 improves the processing strength and rigidity of the thin-walled shaft part 100.
Referring to fig. 4, the second plug 4 may include a body portion 41 having a hollow through hole, a deformation body 42 made of silicon rubber inserted into the body portion 41, and an inner nut 43 screwed with the body portion 41 for fixing the deformation body 42, wherein the body portion 41 also includes a second tapered surface body 411 and a second cylindrical portion 412 connected in series, the body portion 41 is provided with a hollow through hole, the deformation body 42 is inserted into the hollow through hole of the body portion 41, and the inner nut 43 is used for compressing the deformation body 42. The deformation body 42 includes a gate-shaped guiding portion 421 and a port-shaped exhaust deformation portion 422 which extend to the inner side of the second conical portion 411 and are connected in sequence, the port-shaped exhaust deformation portion 422 is provided with an exhaust port 423 on the side facing the second cylindrical portion 412, and when the second plug 4 is inserted into the thin-walled shaft component 100, the compressed oil can be led out through the change of the internal volume of the port-shaped exhaust deformation portion 422 by pressing the gate-shaped guiding portion 421 and the port-shaped exhaust deformation portion 422. So as to avoid the second plug 4 being difficult to insert.
The inner hole of the inner nut 43 may be a regular hexagonal hole, which is convenient for screwing and pushing by a regular hexagonal tool, and of course, the inner hole of the inner nut 43 may also be a threaded hole, which is convenient for using a threaded connection manner to connect a rod-shaped structure for the assembly and disassembly of the inner nut 43. The "mouth" type exhaust deformation part 422 may be a cylindrical cavity with an outer diameter of 8-10mm, and the exhaust port 423 may be a hole with a diameter of 1-2mm, so that the volume of the inner cavity of the "mouth" type exhaust deformation part is greater than or equal to the volume of the body part 41, thereby ensuring that when the second conical surface body 411 enters the inner cavity of the thin-walled shaft part 100 and the second cylindrical part 412 starts to move towards the inner cavity of the thin-walled shaft part 100, and when pressure is applied to the oil, the compressed oil can be led out by pressing the "gate" type guiding part 421 and the "mouth" type exhaust deformation part 422 through the change of the inner volume of the "mouth" type exhaust deformation part 422. During screwing or pushing in of the second plug 4, the "door" shaped guide 421 will be deformed off-axis or expanded after being pressed, so as to prevent the deformation body 42 from being pushed out along the axis. The wall thickness of the deformation 42 can be 1.5-2mm, which ensures sufficient strength and toughness. Those skilled in the art will appreciate that the length and outer diameter of the "port" type exhaust deformation 422 can be adjusted to accommodate providing volume variation space for thin-walled shaft components having different inner diameters.
Similar to the first plug 2, the diameter of the second cylindrical portion 412 may be 0.5-0.8mm smaller than the diameter of the inner cavity of the thin-walled shaft element 100, and the second conical body 411 may be sleeved with an O-ring (not shown) during assembly, wherein the maximum diameter of the O-ring is larger than the diameter of the inner cavity of the thin-walled shaft element 100.
After the inner cavity of the thin-wall shaft part 100 is filled with oil, the second plug 4 can be placed under the liquid level of the oil, then the second conical surface body 411 is sleeved with an O-shaped sealing ring, and then the second plug 4 is inserted into the other end of the inner cavity of the thin-wall shaft part 100, so that the inner cavity of the thin-wall shaft part 100 is ensured to be filled with the oil after being sealed.
Step C, taking the thin-wall shaft part 100 in the step B out of the oil groove, wiping the thin-wall shaft part, processing an outer circular surface,
referring to fig. 2-4, the first plug 2 and the second plug 4 are both provided with a recess at their central positions, and when assembled, they are both controlled to keep a certain distance (for example, 3-5mm) from the end surface of the thin-walled shaft component 100, so that on a lathe such as a lathe or a grinding machine, a flat-end tip is used to avoid interference to clamping.
And D, after the outer circular surface of the step C is processed, placing the thin-wall shaft part 100 above an oil groove, taking down the first plug 2 and then taking down the second plug 4, and enabling the oil product in the inner cavity of the thin-wall shaft part 100 to flow out to the oil groove.
After the outer circular surface is processed, the first plug 2 is connected to a handle rod (not shown in the figure) through the threaded hole 221, so that the first plug 2 can be easily pulled out, after oil in the inner cavity of the thin-walled shaft part 100 flows out, the inner nut 43 can be unscrewed from the body 41, and then the body 41 is connected to the handle rod, so that the body 41 is removed, and thus, the outer circular surface processing of the thin-walled shaft part 100 can be completed.
The first plug 2 may be made of metal or PET resin material, and the body portion 41 and the inner nut 43 of the second plug 4 may be made of metal or PET resin material. As long as sufficient rigidity and strength can be provided.
According to the method for controlling the machining deformation of the thin-wall shaft part, the inner cavity of the thin-wall shaft part is filled with the oil, so that the part is supported, the integral rigidity of a workpiece is enhanced, the machining deformation is controlled and reduced, the molding surface of the outer circular surface of the part can be machined at one time, and the production efficiency is greatly improved. In addition, for different shaft parts with the same inner diameter, the natural frequency of the shaft parts during machining can be adjusted by replacing different oil products, so that the situation of flutter is effectively avoided.
It should be appreciated by those of skill in the art that while the present invention has been described in terms of several embodiments, not every embodiment includes only a single embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including technical equivalents which are related to the embodiments and which are combined with each other to illustrate the scope of the present invention.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent alterations, modifications and combinations can be made by those skilled in the art without departing from the spirit and principles of the invention.
Claims (9)
1. A method for controlling the processing deformation of a thin-wall shaft part, wherein the length L1 of the thin-wall shaft part is more than 800mm, the diameter D1 of the excircle of a shaft body is 26mm, the length-diameter ratio exceeds 30, the wall thickness of the shaft body is not more than 1.5mm, and the excircle surface of the thin-wall shaft part is provided with at least one group of boss parts connected by welding, and the method is characterized by comprising the following steps:
step A, providing a first plug to plug one end of a hollow inner cavity of the thin-wall shaft part,
step B, providing an oil groove, injecting oil into the oil groove, immersing the thin-wall shaft part into the oil in the oil groove to fill the inner cavity of the thin-wall shaft part with the oil, and then providing a second plug, inserting the second plug into the other end of the inner cavity of the thin-wall shaft part under the liquid level of the oil to ensure that the inner cavity of the thin-wall shaft part is filled with the oil, wherein the second plug comprises a body part with a hollow through hole, a deformation body made of silica gel and inserted into the body part, and an inner nut which is in threaded connection with the body part and used for fixing the deformation body, the body part comprises a second conical surface body and a second cylindrical part which are connected in sequence, the body part is provided with the hollow through hole, the deformation body is inserted into the hollow through hole of the body part, the inner nut is used for compressing the deformation body, and the deformation body comprises a gate-shaped guide part and a mouth-shaped guide part which are connected in sequence and extend to the inner side of the second conical surface body An exhaust deformation part provided with an exhaust port at a side facing the second cylindrical part,
step C, taking the thin-wall shaft part in the step B out of the oil groove, wiping the thin-wall shaft part, processing the outer circular surface,
and D, after the outer circular surface of the step C is processed, placing the thin-wall shaft part above an oil groove, taking down the first plug and then the second plug, and enabling the oil product in the inner cavity of the thin-wall shaft part to flow out to the oil groove.
2. The method according to claim 1, wherein in step a, the first plug comprises a first conical body and a first cylindrical portion connected in series, the diameter of the first cylindrical portion is 0.5-0.8mm smaller than the diameter of the inner cavity of the thin-walled shaft part, and the end surface of the first cylindrical portion is provided with a threaded hole.
3. The method of claim 2, wherein in step a, the first plug is assembled by first fitting an O-ring on the first conical body, the O-ring having a maximum diameter greater than the diameter of the inner cavity of the thin-walled shaft component.
4. The method of claim 3 wherein in step a, a rubber membrane is applied over said first plug from a side of said first cone prior to applying said O-ring.
5. The method of claim 2, wherein in step a, an annular rubber pad is disposed outside the first cylindrical portion, the rubber pad having an outer diameter greater than the diameter of the inner cavity of the thin-walled shaft component.
6. The method of claim 1, wherein in step B, the inner bore of the inner nut is a regular hexagonal bore.
7. The method of claim 1, wherein in step B, the inner bore of the inner nut is a threaded bore.
8. The method according to claim 1, wherein in step B, the "mouth" shaped vent deformation is a cylindrical cavity with an outer diameter of 8-10mm, and the vent is a hole with a diameter of 1-2 mm.
9. The method of claim 1, wherein in step D, after the oil in the inner cavity of the thin-walled shaft part flows out, the inner nut is unscrewed from the body part, and then the body part is removed by connecting a handle bar to the body part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010890906.0A CN112008476B (en) | 2020-08-29 | 2020-08-29 | Machining deformation control method for thin-wall shaft part |
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| CN202010890906.0A CN112008476B (en) | 2020-08-29 | 2020-08-29 | Machining deformation control method for thin-wall shaft part |
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| CN112008476A CN112008476A (en) | 2020-12-01 |
| CN112008476B true CN112008476B (en) | 2021-12-14 |
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