CN110732688A - Rotor spindle connecting structure of numerical control machine tool electric spindle and application thereof - Google Patents
Rotor spindle connecting structure of numerical control machine tool electric spindle and application thereof Download PDFInfo
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- CN110732688A CN110732688A CN201911156348.9A CN201911156348A CN110732688A CN 110732688 A CN110732688 A CN 110732688A CN 201911156348 A CN201911156348 A CN 201911156348A CN 110732688 A CN110732688 A CN 110732688A
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- 230000013011 mating Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
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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
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
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Abstract
The invention provides an rotor spindle connecting structure of an electric spindle of a numerical control machine tool, which comprises a spindle and a rotor which are installed in a matched mode through key grooves with cones, wherein the spindle is formed with a spindle key groove and a spindle convex key corresponding to the side of the rotor, and the sides of the spindle key groove and the spindle convex key form a spindle conical surface, the side of the rotor corresponding to the spindle is formed with a rotor key groove and a rotor convex key, the sides of the rotor key groove and the rotor convex key form a rotor conical surface, the rotor key groove and the spindle convex key are installed in a matched mode, the rotor convex key and the spindle key groove are installed in a matched mode, and the rotor and the spindle in the rotor spindle connecting structure are matched through the key grooves with the cones.
Description
Technical Field
The invention relates to a numerical control machine tool, in particular to a rotor spindle connecting structure of an numerical control machine tool electric spindle and application thereof.
Background
The electric spindle is a new technology which is used for fusing a machine tool spindle and a spindle motor into an body in the field of numerical control machines, and the spindle motor and the machine tool spindle are combined into a transmission structure form, so that a spindle part is relatively independent from a transmission system and an integral structure of the machine tool, and the electric spindle has the characteristics of high rotating speed, low noise and high precision.
The rotor of the motor adopts a press fit method and a main shaft as bodies, namely, a connection structure of the rotor and the motor mainly comprises 5 modes, namely, 1, a large interference fit mode is adopted, the rotor and the main shaft are connected in a liquid nitrogen cold-charging mode, at the moment, holes on the main shaft and the rotor are locked, the assembly process is complex, disassembly and assembly are inconvenient, if the rotor and the rotor are forcibly disassembled, parts in the electric main shaft can be damaged, 2, a small interference fit mode is adopted, the rotor and the main shaft which are assembled in the mode cannot bear large torque, the main shaft and the rotor are easy to rotate when the rotor and the main shaft bear large torque, and the problem of loose fit can be caused after disassembly is also existed, 3, a glue-solid fit installation mode is adopted, the installation scheme has the problems of complex assembly and easy damage to the main shaft and the rotor, 4, the problem of loose fit is easy to be caused after repeated disassembly and assembly is solved through a flat key fit installation mode, and 5, the size of taper fit is difficult to control, the processing difficulty and the precision requirements are high, and the cost is.
The five connection modes mentioned above have defects that the main shaft and the rotor hole are locked but are not convenient to disassemble and assemble, and loses the precision of the rotor and the main shaft after being adopted, so that the processing difficulty of the electric main shaft is increased.
Disclosure of Invention
The invention aims to provide a rotor spindle connecting structure of an electric spindle of a numerical control machine tool and application thereof.
The technical scheme provides a rotor spindle connecting structure of a numerically-controlled machine tool electric spindle, which comprises a spindle and a rotor which are installed in a matched mode through key grooves with cones, wherein a spindle key groove and a spindle convex key are formed on the side, corresponding to the rotor, of the spindle, a spindle conical surface is formed on the side, corresponding to the spindle, of the spindle, a rotor key groove and a rotor convex key are formed on the side, corresponding to the spindle, of the rotor, a rotor conical surface is formed on the side, corresponding to the rotor key groove and the side, corresponding to the rotor convex key, of the rotor, the rotor key groove and the spindle convex key are installed in a matched mode.
In , the shaft cone and the opposing rotor cone mate with each other.
In , the side portion of the spindle engaging rotor is recessed inwardly to form a spindle keyway and the portion that is not recessed relative to the spindle keyway forms a spindle lug.
In , the side portion of the rotor mating spindle is recessed to form a rotor keyway and the non-recessed portion of the rotor keyway forms a rotor tab.
In embodiments, the number of rotor splines on the rotor match the number of shaft splines and the number of rotor splines on the rotor mating head match the number of shaft splines.
In , the mating keyways of the spindle and rotor are axisymmetrical.
In , the rotor and the main shaft are connected in a matching way, and the other end of the rotor is fixed on the main shaft through a lock nut.
In , the other end of the rotor is provided with a rotor baffle, wherein the rear side of the rotor baffle is provided with a lock nut, and the rotor is fixed on the main shaft through the lock nut.
In embodiments, a rotor spindle is provided within the rotor, and the spindle rotates within the rotor spindle.
The technical scheme provides numerically-controlled machine tool electric spindle, which comprises a rotor spindle connecting structure of the numerically-controlled machine tool electric spindle as described in any of .
Compared with the prior art, the technical scheme has the following characteristics and beneficial effects:
1. the main shaft and the rotor are assembled into an body through the mutually matched protrusion and the groove, and the groove is a key groove with a cone, so that the front ends of the main shaft and the rotor are connected in this way, and the structure can ensure the connection stability of the main shaft and the rotor and is convenient for the disassembly and the assembly of the main shaft and the rotor.
2. The tapered helical teeth are matched and connected, the locking of the main shaft and the rotor is realized ingeniously by utilizing the mechanical matching relation, and meanwhile, the structure is convenient to process, low in cost and high in efficiency.
Drawings
Fig. 1 is a schematic structural view of a rotor and a spindle of an electric spindle of a numerically controlled machine tool according to an embodiment of the present invention before connection.
Fig. 2 is a schematic structural view of a numerically controlled machine tool electric spindle after a rotor and a spindle are connected according to an embodiment of the present invention.
Fig. 3 is a schematic sectional view of a rotor and spindle connecting structure of an electric spindle of a numerically controlled machine tool according to an embodiment of the present invention.
In the figure: 10-rotor, 111-rotor keyway, 112-rotor lug, 113-rotor cone, 12-rotor mandrel, 13-rotor baffle, 14-lock nut, 20-spindle, 211-shaft keyway, 212-shaft lug, 213-shaft cone.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only partial embodiments of the present invention , rather than all embodiments.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is to be understood that the term "" should be interpreted as "at least " or " or more," i.e., in embodiments, elements may be in number, and in other embodiments, the element may be in number, and the term "" should not be interpreted as limiting the number.
This scheme provides digit control machine tool electricity main shaft's rotor spindle connection structure, and wherein rotor and main shaft make things convenient for the dismantlement of rotor and main shaft when realizing zonulae occludens through the keyway cooperation installation of taking the awl, and this rotor spindle connection structure can be applied to on the digit control machine tool electricity main shaft.
As shown in fig. 1, the rotor spindle connection structure provided in the present technical solution includes:
the main shaft (20) and the rotor (10) are installed in a matched mode through tapered key grooves, wherein an axle key groove (211) and an axle convex key (212) are formed in the main shaft (20) corresponding to the side of the rotor (10), an axle conical surface (213) is formed on the side of the axle key groove (211) and the side of the axle convex key (212), a rotor key groove (111) and a rotor convex key (112) are formed on the rotor (10) corresponding to the side of the main shaft (20), a rotor conical surface (113) is formed on the side of the rotor key groove (111) and the side of the rotor convex key (112), the rotor key groove (111) and the axle convex key (212) are installed in a matched mode, and the rotor convex key (112) and the axle key groove (211) are.
In the embodiment of the technical scheme, the shaft conical surface (213) and the opposite rotor conical surface (113) are matched with each other to play a role in stable connection.
The conical surfaces on the shaft conical surface (213) and the rotor conical surface (113) are provided with fixed slopes, and the arrangement of the shaft conical surface (213) and the rotor conical surface (113) stabilizes the movement of the main shaft (20) in the radial direction when the main shaft (20) rotates.
It is worth to mention that the side of the main shaft (20) matching with the rotor (10) is recessed inwards to form a shaft key groove (211), and the non-recessed part of the shaft key groove (211) forms a shaft convex key (212), so that the joint of the shaft key groove (211) and the shaft convex key (212) is provided with a shaft conical surface (213).
Correspondingly, the side part of the rotor (10) matched with the main shaft (20) is inwards sunken to form a rotor key groove (111), and the part which is not sunken relative to the rotor key groove (111) forms a rotor convex key (112), so that the joint of the rotor key groove (111) and the rotor convex key (112) can also have the same rotor conical surface (113).
In addition, in the embodiment of the technical scheme, at least shaft key slots (211) are formed in the main shaft (20), the number of the rotor convex keys (112) on the rotor (10) is matched with that of the shaft key slots (211), at least shaft convex keys (212) are formed in the main shaft (20), and the number of the rotor key slots (111) on the rotor (10) is matched with that of the shaft convex keys (212).
The matching key grooves of the main shaft (20) and the rotor (10) are in an axisymmetrical structure, namely, the arrangement of the shaft key groove (211) and the shaft convex key (212) on the main shaft is symmetrical relative to the central axis of the main shaft matching head (21).
As shown in figure 3, the rotor (10) is matched and connected with the main shaft (20), and the other end of the rotor (10) is fixed on the main shaft (20) through a locking nut (14).
Specifically, another end of the rotor (10) is provided with a rotor baffle (13), wherein the rotor baffle (13) can limit the position of the rotor (10), the rear side of the rotor baffle (13) is provided with a locking nut (14), and the rotor (10) is fixed on the main shaft (20) through the locking nut (14).
In addition, a rotor mandrel (12) is arranged in the rotor (10), and the main shaft (20) is sleeved on the rotor mandrel (12) to rotate.
According to another aspect of the invention, the present solution provides a numerically controlled machine tool spindle including the rotor spindle connection structure mentioned above therein.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (10)
1, digit control machine tool electricity main shaft's rotor spindle connection structure, its characterized in that includes:
the rotor comprises a main shaft (20) and a rotor (10), wherein the main shaft (20) and the rotor (10) are installed in a matched mode through tapered key grooves, an axis key groove (211) and an axis convex key (212) are formed in the main shaft (20) corresponding to the side of the rotor (10), an axis conical surface (213) is formed on the side of the axis key groove (211) and the side of the axis convex key (212), a rotor key groove (111) and a rotor convex key (112) are formed on the rotor (10) corresponding to the side of the main shaft (20), a rotor conical surface (113) is formed on the side of the rotor key groove (111) and the side of the rotor convex key (112), the rotor key groove (111) and the axis convex key (212) are installed in a matched mode, and the rotor convex key (112) and the axis.
2. The rotor spindle connecting structure of an electric spindle for a numerical control machine tool according to claim 1, wherein the shaft cone surface (213) and the opposite rotor cone surface (113) are fitted to each other.
3. The rotor spindle connection structure of an electric spindle for a numerical control machine tool according to claim 1, wherein the -side portion of the spindle (20) fitted into the rotor (10) is inwardly recessed to form a spindle key groove (211), and the portion not recessed with respect to the spindle key groove (211) forms a spindle projecting key (212).
4. The rotor spindle connecting structure of an electric spindle for a numerical control machine tool according to claim 1, wherein the -side portion of the rotor (10) engaging with the spindle (20) is recessed inwardly to form a rotor key groove (111), and the portion not recessed with respect to the rotor key groove (111) forms a rotor lug key (112).
5. The rotor spindle connection structure of an electric spindle for a numerical control machine tool according to claim 1, wherein the number of rotor keys (112) on the rotor (10) matches the number of shaft key slots (211), and the number of rotor key slots (111) on the rotor (10) matches the number of shaft keys (212).
6. The rotor spindle connection structure of an electric spindle for numerical control machine tools according to claim 1, characterized in that the mating keyways of the spindle (20) and the rotor (10) are axisymmetric.
7. The rotor spindle connection structure according to claim 1, wherein the key groove of the rotor (10) is in fit connection with the spindle (20), and the other end of the rotor (10) is fixed on the spindle (20) through the lock nut (14).
8. The rotor spindle connecting structure of an electric spindle of a numerical control machine according to claim 7, characterized in that the other end of the rotor (10) is provided with a rotor guard (13), wherein a lock nut (14) is provided at the rear side of the rotor guard (13), and the rotor (10) is fixed on the spindle (20) by the lock nut (14).
9. The rotor spindle connection structure of an electric spindle for numerical control machine tools according to claim 7, characterized in that a rotor spindle (12) is provided in the rotor (10), and the spindle (20) rotates in the rotor spindle (12).
10, numerically controlled machine tool electric spindle, characterized in that it comprises a rotor spindle connection structure of a numerically controlled machine tool electric spindle as claimed in any of claims 1 to 9 or above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911156348.9A CN110732688A (en) | 2019-11-22 | 2019-11-22 | Rotor spindle connecting structure of numerical control machine tool electric spindle and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911156348.9A CN110732688A (en) | 2019-11-22 | 2019-11-22 | Rotor spindle connecting structure of numerical control machine tool electric spindle and application thereof |
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| Publication Number | Publication Date |
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| CN110732688A true CN110732688A (en) | 2020-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911156348.9A Pending CN110732688A (en) | 2019-11-22 | 2019-11-22 | Rotor spindle connecting structure of numerical control machine tool electric spindle and application thereof |
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| CN (1) | CN110732688A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658293A (en) * | 2020-12-08 | 2021-04-16 | 珠海格力电器股份有限公司 | Shaft core assembly convenient to disassemble and assemble and electric spindle |
| CN114055111A (en) * | 2021-11-11 | 2022-02-18 | 哈尔滨电机厂有限责任公司 | Large-scale steam turbine generator rotor coupling assembling process method |
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| CN103629256A (en) * | 2012-08-22 | 2014-03-12 | 德西福格成型技术有限公司 | Coupling arrangement and coupling element |
| CN104508244A (en) * | 2012-07-18 | 2015-04-08 | 西门子公司 | A rotor for a radial compressor and a method for construction thereof |
| CN104625101A (en) * | 2014-12-12 | 2015-05-20 | 上海大学 | Double-end output electric main shaft with axial thermal deformation influence eliminating function |
| CN207661012U (en) * | 2017-11-13 | 2018-07-27 | 包头钢铁（集团）有限责任公司 | A kind of screw-down shaft coupling |
| CN211071845U (en) * | 2019-11-22 | 2020-07-24 | 台州市神鹰机床有限公司 | Rotor spindle connecting structure of numerical control machine tool electric spindle and numerical control machine tool electric spindle |
-
2019
- 2019-11-22 CN CN201911156348.9A patent/CN110732688A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104508244A (en) * | 2012-07-18 | 2015-04-08 | 西门子公司 | A rotor for a radial compressor and a method for construction thereof |
| CN103629256A (en) * | 2012-08-22 | 2014-03-12 | 德西福格成型技术有限公司 | Coupling arrangement and coupling element |
| CN104625101A (en) * | 2014-12-12 | 2015-05-20 | 上海大学 | Double-end output electric main shaft with axial thermal deformation influence eliminating function |
| CN207661012U (en) * | 2017-11-13 | 2018-07-27 | 包头钢铁（集团）有限责任公司 | A kind of screw-down shaft coupling |
| CN211071845U (en) * | 2019-11-22 | 2020-07-24 | 台州市神鹰机床有限公司 | Rotor spindle connecting structure of numerical control machine tool electric spindle and numerical control machine tool electric spindle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658293A (en) * | 2020-12-08 | 2021-04-16 | 珠海格力电器股份有限公司 | Shaft core assembly convenient to disassemble and assemble and electric spindle |
| CN114055111A (en) * | 2021-11-11 | 2022-02-18 | 哈尔滨电机厂有限责任公司 | Large-scale steam turbine generator rotor coupling assembling process method |
| CN114055111B (en) * | 2021-11-11 | 2024-01-19 | 哈尔滨电机厂有限责任公司 | Large-sized steam turbine generator rotor coupler assembly process method |
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