CN211589715U - Electric spindle mounting structure for numerical control vertical compound grinding machine - Google Patents
Electric spindle mounting structure for numerical control vertical compound grinding machine Download PDFInfo
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- CN211589715U CN211589715U CN201922454444.3U CN201922454444U CN211589715U CN 211589715 U CN211589715 U CN 211589715U CN 201922454444 U CN201922454444 U CN 201922454444U CN 211589715 U CN211589715 U CN 211589715U
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Abstract
The utility model relates to an electric main shaft mounting structure for a numerical control vertical compound grinder, a sleeve-type electric main shaft is mounted in a main shaft mounting seat and is matched and centered with the main shaft mounting seat, the front end of the sleeve-type electric main shaft is fixedly connected with the end surface of the main shaft mounting seat through a screw, and the rear end of the sleeve-type electric main shaft is connected with the front end of the main shaft mounting seat through an elastic tightening sleeve; the outer surface of the elastic tightening sleeve is in an outer cone shape, the inner surface of the elastic tightening sleeve is a short cylindrical surface with the same diameter as that of a sleeve of the sleeve type electric spindle, an inner conical surface with the same taper as that of the elastic tightening sleeve is arranged at the rear end of the spindle mounting seat, the rear end of the sleeve type electric spindle is connected with the rear end of the spindle mounting seat through screwing mounting screws of the elastic tightening sleeve, so that the sleeve surface of the sleeve type electric spindle is effectively supported, the perpendicularity between the sleeve surface of the cylindrical electric spindle and the mounting flange is adjusted through adjusting the screwing force of each mounting screw, and the mounting precision of the sleeve type electric spindle is improved.
Description
Technical Field
The utility model relates to a grinding machine electron axle especially relates to a vertical combined grinding machine of numerical control power consumption main shaft mounting structure.
Background
The traditional grinding machine has a single grinding surface, the size of a grinding wheel is not changed greatly, the change of the rotating speed range of a grinding wheel spindle is small, the rotating speed range of the grinding wheel spindle of the numerical control vertical composite grinding machine is from 2000rpm to 12000rpm, the traditional grinding wheel spindle cannot meet the functional requirements, and a built-in electric spindle is required. The sleeve type electric spindle has compact structure, high integration level, large speed regulation range and convenient use and replacement, can meet the use requirements of a numerical control vertical composite grinding machine, but needs to solve the problem of installation on the grinding machine.
At present, two common electric main shaft mounting modes are provided, one mode is clamping type mounting, and the other mode is flange type mounting. For the clamping type installation mode, the electric spindle is installed in the spindle installation seat, the spindle installation seat is cut at one side, or the spindle installation seat is designed into a split type, the electric spindle is placed into the spindle installation seat during installation, and then the installation hole of the spindle installation seat is deformed through a screw on the spindle installation seat, so that the electric spindle is clamped; for the flange type installation mode, an installation flange is processed on the electric spindle, an installation hole of an electric spindle installation seat is in clearance fit with the surface of the excircle of the electric spindle, the electric spindle is inserted into the electric spindle installation seat during installation, and then the installation flange of the spindle and the end face of the spindle installation seat are fixed together through screws.
The clamping type mounting mode has the advantages that the electric spindle sleeve is supported by the electric spindle mounting seat, the supporting effect is good, vibration is not prone to being generated in the using process of the electric spindle, the mounting mode is achieved through deformation of the spindle mounting seat, the roundness of the electric spindle sleeve can be reduced, the rotation precision of the electric spindle and the service life of an inner bearing of the electric spindle are further reduced, the mounting mode cannot be used for carrying out shaft positioning on the spindle, and therefore the electric spindle is not suitable for a numerical control vertical type composite grinding machine.
The flange type mounting mode is characterized in that the electric spindle mounting seat supports the electric spindle through a mounting method on the electric spindle, the axial positioning is good, but the mounting mode does not support the sleeve surface of the electric spindle, when the electric spindle is high in power and long in length, vibration is easy to generate, the vibration can affect the machining precision and the quality of a machined surface of a part, and therefore the flange type mounting mode is not suitable for a numerical control vertical type composite grinding machine with high machining precision.
Disclosure of Invention
To above problem, the utility model provides an electric main shaft mounting structure for vertical compound grinding machine of numerical control can effectively support the sleeve face of the axial of telescopic electric main shaft and electric main shaft, is difficult for producing the vibration man-hour to the kind of installation form can not reduce the gyration precision of electric main shaft and the life of its inside bearing. The mounting structure is simple, the use is convenient, and the manufacturing cost is equivalent to that of the former two modes.
In order to achieve the purpose, the technical scheme of the invention is as follows: the electric spindle mounting structure for the numerical control vertical compound grinding machine comprises a sleeve-type electric spindle and a spindle mounting seat, wherein the sleeve-type electric spindle is mounted in the spindle mounting seat and is matched and centered with the spindle mounting seat, the front end of the sleeve-type electric spindle is fixedly connected with the end face of the spindle mounting seat through a screw, and the rear end of the sleeve-type electric spindle is connected with the front end of the spindle mounting seat through an elastic tightening sleeve; the outer surface of the elastic tightening sleeve is in an outer cone shape, the inner surface of the elastic tightening sleeve is a short cylindrical surface with the same diameter as that of a sleeve of the sleeve type electric spindle, an inner conical surface with the same taper as that of the elastic tightening sleeve is arranged at the rear end of the spindle mounting seat, the rear end of the sleeve type electric spindle is connected with the rear end of the spindle mounting seat through screwing mounting screws of the elastic tightening sleeve, so that the sleeve surface of the sleeve type electric spindle is effectively supported, the perpendicularity between the sleeve surface of the cylindrical electric spindle and the mounting flange is adjusted through adjusting the screwing force of each mounting screw, and the mounting precision of the sleeve type electric spindle is improved.
Furthermore, the front end of the spindle mounting seat is connected with the sleeve-type electric spindle in a centering way through a section of short cylindrical surface near the end surface.
Furthermore, an installation flange surface is processed on the sleeve type electric spindle, and the installation flange surface of the sleeve type electric spindle is connected with the rear end surface of the spindle installation seat in a fitting mode through screws, so that the axial positioning and supporting effects on the sleeve type electric spindle are achieved.
Furthermore, a plurality of grooves are symmetrically formed in the conical surface of the elastic tightening sleeve.
The invention has the beneficial effects that: compared with the existing installation method of the cylindrical electric spindle, the installation method of the cylindrical electric spindle has the advantages that the structure is compact, the manufacturing cost is equivalent to the existing structure cost, the axial direction and the sleeve surface of the cylindrical electric spindle and the cylindrical electric spindle can be effectively supported, vibration is not easy to generate during use, the electric spindle can be axially positioned, the rotation precision of the electric spindle and the service life of an inner bearing can not be reduced during installation, the structure is simple, the use is convenient, and the installation method is particularly suitable for the numerical control vertical composite grinding machine manufactured in batches.
Drawings
FIG. 1 is a schematic perspective view of an electric spindle mounting structure for a numerically controlled vertical compound grinding machine according to the present invention;
fig. 2 is a sectional view of the electric spindle mounting structure for the numerical control vertical compound grinding machine of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
As shown in fig. 1 and fig. 2, the utility model discloses a vertical compound grinding machine of numerical control is with electric main shaft mounting structure, including parts such as telescopic electric main shaft 1, main shaft mount pad 3, elasticity tightening sleeve 5, screw 2, 4. The sleeve type electric main shaft 1 is arranged in the main shaft mounting seat 3, the main shaft mounting seat 3 centers the sleeve type electric main shaft 1 through a section of short cylindrical surface near the end surface, an installation flange surface is processed on the sleeve type electric main shaft 1, the installation flange surface of the sleeve type electric main shaft 1 is attached to the end surface of the main shaft mounting seat 3 through a screw 2 to play a role in axially positioning and supporting the sleeve type electric main shaft 1, the elastic tightening sleeve 5 is arranged at the rear end of the main shaft mounting seat 3, the outer surface of the elastic tightening sleeve 5 is processed into an outer conical surface, the inner surface of the elastic tightening sleeve 5 is processed into a short cylindrical surface with the same diameter as the sleeve of the sleeve type electric main shaft 1, a plurality of grooves are symmetrically formed at the conical surface of the elastic tightening sleeve 5, the inner conical surface with the same conical degree as the elastic tightening sleeve 5 is processed at the corresponding position of the rear end of the main shaft mounting seat 3, and the mounting, the rear end of the sleeve type electric spindle 1 can be connected with the rear end of the spindle mounting seat 3, so that the sleeve surface of the sleeve type electric spindle 1 can be effectively supported. The perpendicularity between the sleeve surface of the cylindrical electric spindle 1 and the mounting flange can be ensured by adjusting the tightening force of each mounting screw 4, and the precision of the spindle is not reduced.
In this embodiment: the spindle mounting base 3 is connected with the outer cylinder of the sleeve type electric spindle 1 in a centering mode through a section of short cylindrical surface near the end face, and positioning accuracy is high.
In this embodiment: an installation flange surface is processed on the sleeve type electric spindle 1, the installation flange surface of the sleeve type electric spindle 1 is attached and connected with the end surface of the spindle installation seat 3 through a screw 2, and the axial positioning and supporting effects on the sleeve type electric spindle 1 are achieved. The outer cylinder of the sleeve type electric spindle 1 is matched with the short cylindrical surface of the spindle mounting seat 3 for centering connection, so that high-precision positioning connection can be realized.
In this embodiment: the outer surface of the elastic tightening sleeve 5 is processed into an outer cone, the inner surface of the elastic tightening sleeve 5 is processed into a short cylindrical surface with the same diameter as the sleeve of the sleeve-type electric spindle 1, a plurality of grooves are symmetrically formed in the conical surface of the elastic tightening sleeve 5, the elastic tightening sleeve 5 can realize elastic deformation through the outer cone and the plurality of grooves on the conical surface, and therefore the perpendicularity between the sleeve surface of the cylindrical electric spindle 1 and the mounting flange can be adjusted by adjusting the tightening force of each mounting screw 4.
Claims (4)
1. The utility model provides a vertical compound grinding machine of numerical control is with electric main shaft mounting structure, includes telescopic electric main shaft, main shaft mount pad, its characterized in that: the sleeve type electric spindle is arranged in the spindle mounting seat and is matched and centrally connected with the spindle mounting seat, the front end of the sleeve type electric spindle is fixedly connected with the end face of the spindle mounting seat through a screw, and the rear end of the sleeve type electric spindle is connected with the front end of the spindle mounting seat through an elastic tightening sleeve; the outer surface of the elastic tightening sleeve is in an outer cone shape, the inner surface of the elastic tightening sleeve is a short cylindrical surface with the same diameter as that of a sleeve of the sleeve type electric spindle, an inner conical surface with the same taper as that of the elastic tightening sleeve is arranged at the rear end of the spindle mounting seat, the rear end of the sleeve type electric spindle is connected with the rear end of the spindle mounting seat through screwing mounting screws of the elastic tightening sleeve, so that the sleeve surface of the sleeve type electric spindle is effectively supported, the perpendicularity between the sleeve surface of the cylindrical electric spindle and the mounting flange is adjusted through adjusting the screwing force of each mounting screw, and the mounting precision of the sleeve type electric spindle is improved.
2. The electric spindle mounting structure for the numerically controlled vertical compound grinding machine according to claim 1, characterized in that: the front end of the spindle mounting seat is connected with the sleeve type electric spindle in a centering way through a section of short cylindrical surface near the end surface.
3. The electric spindle mounting structure for the numerically controlled vertical compound grinding machine according to claim 1, characterized in that: an installation flange surface is processed on the sleeve type electric spindle, and the installation flange surface of the sleeve type electric spindle is connected with the front end surface of the spindle installation seat in a fitting mode through screws, so that the sleeve type electric spindle is axially positioned and supported.
4. The electric spindle mounting structure for the numerically controlled vertical compound grinding machine according to claim 1, characterized in that: the conical surface of the elastic tightening sleeve is symmetrically provided with a plurality of grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922454444.3U CN211589715U (en) | 2019-12-30 | 2019-12-30 | Electric spindle mounting structure for numerical control vertical compound grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922454444.3U CN211589715U (en) | 2019-12-30 | 2019-12-30 | Electric spindle mounting structure for numerical control vertical compound grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211589715U true CN211589715U (en) | 2020-09-29 |
Family
ID=72598299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922454444.3U Active CN211589715U (en) | 2019-12-30 | 2019-12-30 | Electric spindle mounting structure for numerical control vertical compound grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211589715U (en) |
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2019
- 2019-12-30 CN CN201922454444.3U patent/CN211589715U/en active Active
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