CN114905280A - High-precision intermittent long and thin blind shaft hole machining device and machining method - Google Patents
High-precision intermittent long and thin blind shaft hole machining device and machining method Download PDFInfo
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- CN114905280A CN114905280A CN202210124052.4A CN202210124052A CN114905280A CN 114905280 A CN114905280 A CN 114905280A CN 202210124052 A CN202210124052 A CN 202210124052A CN 114905280 A CN114905280 A CN 114905280A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
- B23P13/02—Making metal objects by operations essentially involving machining but not covered by a single other subclass in which only the machining operations are important
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention belongs to the technical field of machining, and particularly relates to a high-precision machining device and a machining method for a discontinuous slender blind shaft hole. Comprises a guide clamp and a guide cutter; the guide fixture is arranged on the workbench; the guide tool is arranged on the tool magazine; the guide clamp comprises a guide wall and a clamp bottom plate; the guide wall is positioned on the clamp bottom plate through the guide wall positioning pin and is fixed on the clamp bottom plate through a mounting screw; the guide cutter comprises a guide lengthening drill bit, a guide lengthening reamer and a guide lengthening reamer. The invention adopts a guide processing method, firstly adopts a conventional cutter and a conventional method to process the front end hole of the long shaft hole to meet the requirement, and then guides the cutter to process the rear end hole of the long shaft hole by the guide of the front end processed hole and the guide hole of the guide wall. Due to the guiding of the guide wall, the cutter can inhibit the traction of the inclined surface of the rear-end long-axis hole blank to ensure the position degree and the coaxiality, and the cutter stably avoids vibration during guiding to ensure the diameter and the roughness.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to a high-precision machining device and a machining method for a discontinuous slender blind shaft hole.
Background
Because the long shaft hole is a blind hole, the length and the diameter ratio are large, the middle part of the hole is a cavity, and the requirements on the diameter, the position, the coaxiality and the roughness of the hole are extremely high, thereby becoming a processing difficult problem. The existing processing method directly adopts a lengthened cutter to carry out rough processing, semi-finish processing and finish processing, because the cutter is too long, when the cutter meets the inclined surface of a rear-end long-axis hole blank, the cutter is dragged by the inclined surface to cause the position and the coaxiality to be out of tolerance, the length-diameter ratio of the cutter is large, the strength is low, and the vibration is generated to cause the diameter and the roughness to be out of tolerance.
Disclosure of Invention
The invention provides a device and a method for machining a high-precision discontinuous slender blind shaft hole.
The technical scheme of the invention is described in the following by combination:
a high-precision discontinuous slender blind shaft hole machining device comprises a guide clamp and a guide cutter 2; the guide fixture is arranged on the workbench; the guide tool is arranged on the tool magazine; the guide fixture comprises a guide wall 1 and a fixture bottom plate 3; the guide wall 1 is positioned on the clamp bottom plate 3 through a guide wall positioning pin 12 and fixed on the clamp bottom plate 3 through a mounting screw 13; the guide cutter 2 includes a guide extension drill 21, a guide extension reamer 22, and a guide extension reamer 23.
The upper end of the guide wall 1 is provided with a guide hole 11, a positioning hole for installing a guide wall positioning pin 12 and an installation hole for installing a screw 13.
One end of the guide hole 11 is provided with a guide chamfer.
The guide lengthening drill bit 21, the guide lengthening reamer 22 and the guide lengthening reamer 23 comprise a cutting part 24, a guide part 25 and a holding part 26; the guide portions 25 of the guide extension drill 21, the guide extension reamer 22 and the guide extension reamer 23 have the same diameter.
The final aperture allowance of the diameter of the cutting part 24 of the pilot extension drill 21 is 1-2 mm; the final aperture allowance of the diameter of the cutting part 24 of the guide lengthening reamer 22 is 0.2mm-0.4 mm; the diameter of the cutting part 24 of the guide lengthened reamer 23 is the final bore diameter; the diameter of the holding portion 26 is the holding diameter of a standard shank, and the diameter of the guide portion 25 is 0.005-0.01mm smaller than the diameter of the cutting portion 24 for guiding the extended reamer 23.
A high-precision intermittent slender blind shaft hole machining method is realized through a high-precision intermittent slender blind shaft hole machining device and comprises the following steps:
step one, installing the guide wall 1 on a workbench, and inputting a zero point of a part machining coordinate system into a numerical control device after alignment;
step two, clamping the guide lengthened drill bit 21, the guide lengthened reamer 22 and the guide lengthened reamer 23 into a cutter handle, measuring the lengths of the cutters respectively, installing the cutters into a cutter library, and inputting the cutter length compensation into numerical control equipment;
step three, processing the diameter of the front section 41 of the discontinuous slender blind shaft hole;
step four, guiding the lengthened drill bit 21 to enable the cutter guiding part 25 to enter the guiding hole 11 through the front section 41 of the discontinuous elongated blind shaft hole at the feeding speed of 30r/min rotating speed F1000, calculating the cutter rotating speed N according to the linear speed Vc of 60m/min before the blank of the rear section 42 of the discontinuous elongated blind shaft hole, calculating the feeding speed Vf according to the feeding amount per revolution of fr of 0.1mm/r, processing the cutter rotating speed N to the bottom of the hole according to the feeding speed Vf, and retracting the cutter to the safe height according to the feeding speed of 30r/min rotating speed F2000;
fifthly, guiding the lengthened hole expanding cutter 22 to enter the cutter guide part 25 into the guide hole 11 through the front section 41 of the discontinuous elongated blind shaft hole at the feeding speed of 30r/min F1000, calculating the cutter rotating speed N at the linear speed of Vc being 30m/min before the blank of the rear section 42 of the discontinuous elongated blind shaft hole, calculating the feeding speed Vf being fz Z N at the feeding amount of each tooth of fz being 0.05mm/Z, processing the cutter to the hole bottom at the feeding speed of N and retracting the cutter to the safety height at the feeding speed of 30r/min F2000;
and sixthly, leading the lengthened reamer 23 to enter the guide hole 11 through the front section 41 of the discontinuous elongated blind shaft hole at the feeding speed of 30r/min rotating speed F1000, calculating the rotating speed N of the cutter to be Vc 318/D at the linear speed of Vc 20m/min before the rear section 42 of the discontinuous elongated blind shaft hole is blanked, calculating the feeding speed Vf to be fz Z N at each tooth feeding amount of fz 0.02mm/Z, machining the cutter to the bottom of the hole at the feeding speed of the cutter rotating speed N Vf, and withdrawing the cutter to the safe height at the feeding speed of 30r/min rotating speed F2000, so that the machining of the high-precision discontinuous elongated blind shaft hole is completed.
The diameter of the front section 41 of the machined discontinuous slender blind shaft hole is 0.005-0.01mm larger than that of the cutting part 24 of the guide lengthened reamer 23.
The method for calculating the rotating speed of the cutter in the fourth step comprises the following steps: n ═ Vc 318/D, where Vc is the linear velocity and D is the tool diameter; the method for calculating the feeding speed Vf comprises the following steps: and Vf is fr N, wherein fr is the feeding amount per revolution, and N is the rotating speed of the cutter.
The calculation method of the tool rotating speed in the step five comprises the following steps: n ═ Vc 318/D, where Vc is the linear velocity and D is the tool diameter; the method for calculating the feeding speed Vf comprises the following steps: and Vf is fz Z N, wherein fz is the feed per tooth, Z is the number of tool edges, and N is the tool rotation speed.
The calculation method of the tool rotating speed in the sixth step comprises the following steps: n ═ Vc 318/D, where Vc is the linear velocity and D is the tool diameter; the method for calculating the feeding speed Vf comprises the following steps: and Vf is fz Z N, wherein fz is the feed per tooth, Z is the number of tool edges, and N is the tool rotation speed.
The invention has the beneficial effects that:
1) the high-precision discontinuous slender blind shaft hole machining device enables the guide diameters of rough machining, semi-finish machining and finish machining guide tools to be the same, can share one guide wall, is designed and manufactured with the guide clamp, and can guide the tools during rough machining, semi-finish machining and finish machining by designing and installing the guide wall on the positioning bottom plate;
2) the invention adopts a guide processing method, firstly adopts a conventional cutter and a conventional method to process the front end hole of the long shaft hole to meet the requirement, and then guides the cutter to process the rear end hole of the long shaft hole by the guide of the front end processed hole and the guide hole of the guide wall. Due to the guiding of the guide wall, the cutter can inhibit the traction of the inclined surface of the rear-end long-axis hole blank to ensure the position degree and the coaxiality, and the cutter stably avoids vibration during guiding to ensure the diameter and the roughness.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a high-precision discontinuous elongated blind shaft hole machining device according to the invention;
FIG. 2 is a schematic structural view of a guide cutter in the high-precision discontinuous elongated blind shaft hole machining device according to the present invention;
FIG. 3 is a schematic structural view of a guide cutter in the high-precision discontinuous elongated blind shaft hole machining device.
In the figure:
1. a guide wall;
11. a guide hole is formed;
12. installing a guide wall positioning pin;
13. a screw;
2. guiding the cutter;
21. guiding the lengthened drill bit;
22. guiding the lengthened reamer;
23. guiding the lengthened reamer;
24. a cutting portion;
25. a guide portion;
26. a clamping portion;
3. a clamp base plate;
4. processing parts;
41. a discontinuous elongated blind axle hole front section;
42. and the rear section of the discontinuous slender blind shaft hole.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example one
Referring to fig. 1 and 3, the high-precision discontinuous slender blind shaft hole machining device comprises a guide clamp and a guide cutter 2; the guide fixture is arranged on the workbench; the guide tool is mounted on the tool magazine.
The guide fixture comprises a guide wall 1 and a fixture bottom plate 3; the guide wall 1 is positioned on the clamp bottom plate 3 through a guide wall positioning pin 12 and fixed on the clamp bottom plate 3 through a mounting screw 13;
the upper end of the guide wall 1 is provided with a guide hole 11, a positioning hole for installing a guide wall positioning pin 12 and an installation hole for installing a screw 13.
The clamp bottom plate 3 is provided with a part positioning hole and a guide wall positioning hole; the part positioning hole is used for positioning a machined part 4; the guide wall positioning hole is used for positioning the guide wall 1.
One end of the guide hole 11 is provided with a guide chamfer.
Referring to fig. 2, the pilot cutter 2 includes a pilot extension drill 21, a pilot extension reamer 22, and a pilot extension reamer 23.
The pilot extension drill 21 is used for roughing interrupted slender blind shaft holes.
The guided elongated reamer 22 is used for semi-finishing interrupted elongated blind shaft holes.
The guide extension reamer 23 is used for finishing interrupted slender blind shaft holes.
The pilot extension drill 21, the pilot extension reamer 22 and the pilot extension reamer 23 include a cutting portion 24, a guide portion 25 and a holding portion 26.
The diameters of the guide parts 25 of the guide lengthened drill bit 21, the guide lengthened reamer 22 and the guide lengthened reamer 23 are the same and are phi 18.005, so that the rough machining, the semi-finishing machining and the finish machining can be completed by one-time clamping by using the same guide clamp for machining the three cutters.
The diameter of the cutting part of the guide lengthened drill bit 21 is phi 16.5mm, the diameter of the cutting part of the guide lengthened reamer 22 is phi 17.8mm, the diameter of the cutting part 24 of the guide lengthened reamer 23 is phi 18.005mm, and the diameter of the clamping part 26 of the guide cutter 2 is the clamping diameter of a standard cutter handle.
The final aperture allowance of the diameter of the cutting part 24 of the pilot extension drill 21 is 1-2 mm; the final aperture allowance of the diameter of the cutting part 24 of the guide lengthening reamer 22 is 0.2mm-0.4 mm; the diameter of the cutting part 24 of the guide lengthened reamer 23 is the final bore diameter; the diameter of the holding part 26 is the holding diameter of a standard tool shank, and the diameter of the guide part 25 is 0.005-0.01mm smaller than that of the cutting part 24 for guiding the lengthened reamer 23.
Example two
A high-precision intermittent slender blind shaft hole machining method is realized through a high-precision intermittent slender blind shaft hole machining device and comprises the following steps:
step one, installing the guide wall 1 on a workbench, and inputting a zero point of a part machining coordinate system into a numerical control device after alignment;
step two, clamping the guide lengthening drill bit 21, the guide lengthening reamer 22 and the guide lengthening reamer 23 into a cutter handle, measuring the lengths of the cutter handle, installing the cutter handle and the guide lengthening reamer to a cutter library, and inputting the cutter length compensation into a numerical control device;
step three, processing the diameter of the front section 41 of the discontinuous slender blind shaft hole; the diameter of the front section 41 of the machined discontinuous slender blind shaft hole is 0.005-0.01mm larger than that of the cutting part 24 of the guide lengthened reamer 23.
Step four, guiding the lengthened drill bit 21 to enable the cutter guiding part 25 to enter the guiding hole 11 through the front section 41 of the discontinuous elongated blind shaft hole at the feeding speed of 30r/min rotating speed F1000, calculating the cutter rotating speed N according to the linear speed Vc of 60m/min before the blank of the rear section 42 of the discontinuous elongated blind shaft hole, calculating the feeding speed Vf according to the feeding amount per revolution of fr of 0.1mm/r, processing the cutter rotating speed N to the bottom of the hole according to the feeding speed Vf, and retracting the cutter to the safe height according to the feeding speed of 30r/min rotating speed F2000;
the calculation method of the rotating speed of the cutter comprises the following steps: n ═ Vc 318/D, where Vc is the linear velocity and D is the tool diameter; the method for calculating the feeding speed Vf comprises the following steps: vf equals fr × N, where fr is the feed per revolution and N is the tool speed.
Step five, guiding the lengthened expanding cutters 22 to enter the guide holes 11 through the front sections 41 of the discontinuous elongated blind shaft holes at a feeding speed of 30r/min rotating speed F1000, calculating the rotating speed N of the cutters at a linear speed Vc of 30m/min before blanks of the rear sections 42 of the discontinuous elongated blind shaft holes, calculating a feeding speed Vf of fz of 0.05mm/Z per tooth, processing the feed speed Vf of the cutters at a feeding speed N of the hole bottoms, and retracting the cutters to a safe height at a feeding speed of 30r/min rotating speed F2000;
the calculation method of the rotating speed of the cutter comprises the following steps: n ═ Vc 318/D, where Vc is the linear velocity and D is the tool diameter; the method for calculating the feeding speed Vf comprises the following steps: and Vf is fz Z N, wherein fz is the feed per tooth, Z is the number of tool edges, and N is the tool rotation speed.
And (3) leading the cutter guide part 25 to enter the guide hole 11 through the front section 41 of the discontinuous blind long shaft hole at the feeding speed of 30r/min rotating speed F1000, calculating the cutter rotating speed N (Vc 318/D) at the linear speed of Vc 20m/min before the blank of the rear section 42 of the discontinuous long and thin blind shaft hole, calculating the feeding speed Vf (fz Z N) at each tooth feeding amount of fz 0.02mm/Z, machining the cutter rotating speed N at the bottom of the hole at the feeding speed Vf, and withdrawing the cutter to the safe height at the feeding speed of 30r/min rotating speed F2000, so that the machining of the high-precision discontinuous long and thin blind shaft hole is finished.
The calculation method of the rotating speed of the cutter comprises the following steps: n ═ Vc 318/D, where Vc is the linear velocity and D is the tool diameter; the method for calculating the feeding speed Vf comprises the following steps: and Vf is fz Z N, wherein fz is the feed per tooth, Z is the number of tool edges, and N is the tool rotation speed.
According to the invention, the conventional cutter and the conventional method are firstly adopted to process the front end hole of the long shaft hole to meet the requirement, then the cutter is guided to process the rear end hole of the long shaft hole by the processed front end hole and the guide hole of the guide wall, the cutter can inhibit the traction of the inclined surface of the blank of the rear end long shaft hole to ensure the position degree and the coaxiality due to the guide of the guide wall, and the cutter can stably avoid vibration during the guide to ensure the diameter and the roughness.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A high-precision discontinuous slender blind shaft hole machining device is characterized by comprising a guide clamp and a guide cutter (2); the guide fixture is arranged on the workbench; the guide tool is arranged on the tool magazine; the guide fixture comprises a guide wall (1) and a fixture bottom plate (3); the guide wall (1) is positioned on the clamp bottom plate (3) through a guide wall positioning pin (12) and is fixed on the clamp bottom plate (3) through a mounting screw (13); the guide cutter (2) comprises a guide lengthening drill bit (21), a guide lengthening reamer (22) and a guide lengthening reamer (23).
2. A high-precision discontinuous slender blind shaft hole machining device according to claim 1, characterized in that the upper end of the guide wall (1) is provided with a guide hole (11), a positioning hole for installing a guide wall positioning pin (12) and a mounting hole for installing a screw (13).
3. A high precision interrupted elongated blind shaft hole machining device according to claim 1, characterized in that one end of the guiding hole (11) is provided with a guiding chamfer.
4. A high precision interrupted elongated blind shaft hole machining device according to claim 1, characterized in that the guide extension drill bit (21), the guide extension reamer (22) and the guide extension reamer (23) comprise a cutting portion (24), a guide portion (25) and a holding portion (26); the guide parts (25) of the guide lengthening drill bit (21), the guide lengthening reamer (22) and the guide lengthening reamer (23) are the same in diameter.
5. A high precision interrupted elongated blind shaft hole machining device according to claim 4, characterized in that the final bore allowance of the diameter of the cutting part (24) of the pilot extension bit (21) is 1-2 mm; the final aperture allowance of the diameter of the cutting part (24) of the guide lengthening reamer (22) is 0.2mm-0.4 mm; the diameter of the cutting part (24) of the guide lengthening reamer (23) is the final bore diameter; the diameter of the clamping part (26) is the clamping diameter of a standard tool shank, and the diameter of the guide part (25) is 0.005-0.01mm smaller than that of the cutting part (24) for guiding the lengthened reamer (23).
6. A high-precision intermittent slender blind shaft hole machining method is realized through a high-precision intermittent slender blind shaft hole machining device and is characterized by comprising the following steps of:
step one, installing a guide wall (1) on a workbench, and inputting a zero point of a part machining coordinate system into a numerical control device after alignment;
step two, clamping a guide lengthening drill bit (21), a guide lengthening reamer (22) and a guide lengthening reamer (23) into a cutter handle, measuring the lengths of the cutter handle, installing the cutter handle and the cutter length compensation into a numerical control device;
step three, processing the diameter of the front section (41) of the discontinuous slender blind shaft hole;
fourthly, guiding the lengthened drill bit (21) to enable a cutter guiding part (25) to enter a guiding hole (11) through a front section (41) of the discontinuous elongated blind shaft hole at a feeding speed of 30r/min F1000, calculating a cutter rotating speed N at a linear speed of Vc 60m/min before a blank at a rear section (42) of the discontinuous elongated blind shaft hole, calculating a feeding speed Vf at a feed per revolution of fr 0.1mm/r, processing the cutter rotating speed N to the bottom of the hole at the feeding speed Vf, and retracting the cutter to a safe height at the feeding speed of 30r/min F2000;
fifthly, guiding the lengthened hole expanding cutter (22) to enter a guide hole (11) through a cutter guide part (25) through a front section (41) of the discontinuous elongated blind shaft hole at a feeding speed of 30r/min F1000, calculating a cutter rotating speed N at a linear speed Vc of 30m/min before a blank at a rear section (42) of the discontinuous elongated blind shaft hole, calculating a feeding speed Vf at fz of 0.05mm/Z, machining the cutter rotating speed N at the feeding speed Vf to the hole bottom, and retracting the cutter to a safe height at a feeding speed of 30r/min F2000;
and sixthly, guiding the lengthened reamer (23) to enter the guide hole (11) through the front section (41) of the discontinuous elongated blind shaft hole at the feeding speed of 30r/min rotating speed F1000, calculating the rotating speed N of the cutter to be Vc 318/D at the linear speed of Vc 20m/min before the blank of the rear section (42) of the discontinuous elongated blind shaft hole, calculating the feeding speed Vf to be fz Z N at the feed amount per tooth of fz 0.02mm/Z, machining the hole bottom at the feeding speed N of the cutter, retracting the cutter to the safe height at the feeding speed of 30r/min rotating speed F2000, and finishing machining the high-precision discontinuous elongated blind shaft hole.
7. A high precision discontinuous elongated blind shaft hole processing method as claimed in claim 6, characterized in that the diameter of the front section (41) of the processed discontinuous elongated blind shaft hole is 0.005-0.01mm larger than the diameter of the cutting part (24) of the guide lengthened reamer (23).
8. The method for machining the high-precision discontinuous elongated blind shaft hole according to claim 6, wherein the method for calculating the rotating speed of the cutter in the fourth step comprises the following steps: n ═ Vc 318/D, where Vc is the linear velocity and D is the tool diameter; the method for calculating the feeding speed Vf comprises the following steps: and Vf is fr N, wherein fr is the feeding amount per revolution, and N is the rotating speed of the cutter.
9. A high-precision discontinuous slender blind shaft hole machining method as claimed in claim 6, wherein the method for calculating the tool rotation speed in the step five is as follows: n ═ Vc 318/D, where Vc is the linear velocity and D is the tool diameter; the method for calculating the feeding speed Vf comprises the following steps: and Vf is fz Z N, wherein fz is the feed per tooth, Z is the number of tool edges, and N is the tool rotation speed.
10. A high-precision discontinuous slender blind shaft hole machining method as claimed in claim 6, wherein the calculation method of the tool rotation speed in the sixth step is as follows: n ═ Vc 318/D, where Vc is the linear velocity and D is the tool diameter; the method for calculating the feeding speed Vf comprises the following steps: and Vf is fz Z N, wherein fz is the feed per tooth, Z is the number of tool edges, and N is the tool rotation speed.
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| CN202210124052.4A CN114905280B (en) | 2022-02-10 | 2022-02-10 | High-precision intermittent slender blind shaft hole machining device and machining method |
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| CN202210124052.4A CN114905280B (en) | 2022-02-10 | 2022-02-10 | High-precision intermittent slender blind shaft hole machining device and machining method |
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| CN114905280B CN114905280B (en) | 2023-06-13 |
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| CN112008101A (en) * | 2020-07-16 | 2020-12-01 | 上海航天精密机械研究所 | Drilling method for ultra-deep long hole |
| CN213729547U (en) * | 2020-10-21 | 2021-07-20 | 常州法蒙精密机械有限公司 | Deep hole processing drilling reamer |
| CN113333805A (en) * | 2021-06-24 | 2021-09-03 | 中国航发中传机械有限公司 | Variable-section multi-layer intermittent deep hole machining method |
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2022
- 2022-02-10 CN CN202210124052.4A patent/CN114905280B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1268417A (en) * | 1999-03-24 | 2000-10-04 | 叶小宁 | Processing method of superlong precision deep bore and its equipment |
| CN108176896A (en) * | 2018-02-01 | 2018-06-19 | 苏州阿诺精密切削技术有限公司 | For the burnishing-in reamer of high-accuracy deep hole machining |
| CN112008101A (en) * | 2020-07-16 | 2020-12-01 | 上海航天精密机械研究所 | Drilling method for ultra-deep long hole |
| CN213729547U (en) * | 2020-10-21 | 2021-07-20 | 常州法蒙精密机械有限公司 | Deep hole processing drilling reamer |
| CN113333805A (en) * | 2021-06-24 | 2021-09-03 | 中国航发中传机械有限公司 | Variable-section multi-layer intermittent deep hole machining method |
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