CN218656833U - Electric spindle of numerical control machine tool - Google Patents
Electric spindle of numerical control machine tool Download PDFInfo
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- CN218656833U CN218656833U CN202223199250.1U CN202223199250U CN218656833U CN 218656833 U CN218656833 U CN 218656833U CN 202223199250 U CN202223199250 U CN 202223199250U CN 218656833 U CN218656833 U CN 218656833U
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- main shaft
- section
- rotor
- truncated cone
- control machine
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Abstract
The utility model belongs to the technical field of the digit control machine tool, refer in particular to an electric main shaft of digit control machine tool, including main shaft, rotor and stator, the rotor suit is at the main shaft right-hand member, the main shaft right-hand member includes the little truncated cone section in the big left side of diameter and is located the screw thread section on truncated cone section right side, the rotor inner circle includes the truncated cone hole with truncated cone section adaptation and the round hole that supplies the screw thread section to pass through, the screw thread section passes round hole one and nut spiro union, and the left end face of nut is contradicted with the right-hand member face of rotor spacing. The utility model discloses a truncated cone section and the cooperation of truncated cone hole cooperation and nut and screw thread section are fixed the suit at the main shaft right-hand member with the rotor, require lowly to the machining precision of rotor external diameter and main shaft internal diameter, be convenient for dismouting and maintenance simultaneously.
Description
The technical field is as follows:
the utility model belongs to the technical field of the digit control machine tool, refer in particular to an electricity main shaft of digit control machine tool.
The background art comprises the following steps:
the electric spindle is a new technology which integrates a machine tool spindle and a spindle motor into a whole and appears in the field of numerical control machines.
Chinese utility model patent CN201076995Y discloses an electricity main shaft structure of lathe, and the pivot of the rotatory motor of drive main shaft is directly adorned on the main shaft admittedly, the casing and the stator fixed connection of motor to install in the frame, the stator closely is fixed in the shells inner wall of motor, the stator inlays the dress winding, rotor interference fit directly adorns admittedly on the main shaft, the main shaft becomes the motor shaft simultaneously.
In the electric spindle structure of the machine tool, the rotor is directly and fixedly arranged on the spindle in an interference fit manner, the requirements on the machining precision of the inner diameter of the rotor and the outer diameter of the spindle are high, and the electric spindle structure is inconvenient to disassemble and assemble and inconvenient to maintain.
The invention content is as follows:
the utility model aims at providing an electricity main shaft of digit control machine tool, it is through the cooperation of truncated cone section and truncated cone hole cooperation and nut and screw thread section, fixes the cover dress with the rotor at the main shaft right-hand member, and the machining precision requirement to rotor external diameter and main shaft internal diameter is low, the dismouting and the maintenance of being convenient for simultaneously.
The utility model discloses a realize like this:
the utility model provides an electric main shaft of digit control machine tool, includes main shaft, rotor and stator, the rotor suit is at the main shaft right-hand member, the main shaft right-hand member includes the little truncated cone section in the big left side of diameter and is located the screw thread section on truncated cone section right side, the rotor inner circle includes the truncated cone hole with truncated cone section adaptation and the round hole that supplies the screw thread section to pass through, the screw thread section passes round hole one and nut spiro union, and the left end face of nut is contradicted with the right-hand member face of rotor spacing.
In the electric spindle of the numerical control machine tool, the rotor inner ring further comprises a circular hole II arranged between the truncated conical hole and the circular hole I, and the diameter of the circular hole II is larger than that of the small end of the truncated conical hole.
In the electric spindle of the numerical control machine tool, the right end of the spindle further comprises a cylindrical section arranged between the truncated cone section and the thread section, and the diameter of the cylindrical section is smaller than the major diameter of the thread section and the diameter of the small end of the truncated cone section.
In the electric spindle of the numerical control machine tool, the diameter of the first round hole is smaller than that of the small end of the truncated conical hole, and the second round hole is in clearance fit with the threaded section.
In the electric spindle of the numerical control machine tool, the taper of the truncated cone section is 0.1-0.3.
In the electric spindle of the numerical control machine tool, the middle part of the spindle is rotatably connected in the sleeve through the bearing, and the left end of the spindle extends out of the sleeve and then is connected with the grinding wheel.
In the electric spindle of the numerical control machine tool, the grinding carriage shell is sleeved outside the sleeve, the right end of the grinding carriage shell is fixed with the right cover through a screw, the stator is sleeved with the motor sleeve, and the motor sleeve is fixed on the right cover through a screw.
Compared with the prior art, the utility model outstanding advantage is:
the utility model discloses a truncated cone section and truncated cone hole cooperation and the cooperation of nut and screw thread section, with the fixed suit of rotor at the main shaft right-hand member, require lowly to the machining precision of rotor external diameter and main shaft internal diameter, be convenient for dismouting and maintenance simultaneously.
Description of the drawings:
fig. 1 is a cross-sectional view of the present invention;
fig. 2 is a front view of the spindle of the present invention;
fig. 3 is a cross-sectional view of a rotor of the present invention.
Reference numerals: 1. a main shaft; 11. a truncated conical section; 12. a threaded segment; 13. a cylindrical section; 2. a rotor; 21. a truncated conical bore; 22. a first round hole; 23. a second round hole; 3. a stator; 4. a nut; 5. a sleeve; 6. a grinding wheel; 7. a wheel carrier housing; 8. a right cover; 9. a motor cover.
The specific implementation mode is as follows:
the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 3:
the utility model provides an electric main shaft of digit control machine tool, includes main shaft 1, rotor 2 and stator 3, 2 suits of rotor are at 1 right-hand member of main shaft, 1 right-hand member of main shaft includes the little truncated cone section 11 in the left side of diameter and is located the screw thread section 12 on the 11 right sides of truncated cone section, 2 inner circles of rotor include with the truncated cone hole 21 of 11 looks adaptations in truncated cone section and the round hole 22 that supplies screw thread section 12 to pass through, screw thread section 12 passes round hole 22 and nut 4 spiro union, and the left end face of nut 4 is contradicted with the right-hand member face of rotor 2 spacing.
The utility model discloses an assembling process: as shown in fig. 1-3, the rotor 2 is sleeved into the right end of the main shaft 1 from right to left, the truncated conical section 11 with the diameter being larger at the left and smaller at the right is matched with the truncated conical hole 21 to limit the left movement of the rotor 2, and the nut 4 is screwed with the threaded section 12 of the main shaft 1 to limit the right movement of the rotor 2.
The utility model discloses a truncated cone section 11 cooperates with truncated cone hole 21 and nut 4 and screw thread section 12's cooperation, with the fixed suit of 2 rotors on the main shaft, requires lowly to the machining precision of 2 external diameters of rotor and 1 internal diameters of main shaft, the dismouting and the maintenance of being convenient for simultaneously.
In order to leave a clearance space for the grinding wheel for machining the truncated conical hole 21, as shown in fig. 1 and 3, the inner ring of the rotor 2 further comprises a round hole II 23 arranged between the truncated conical hole 21 and the round hole I22, and the diameter of the round hole II 23 is larger than that of the small end of the truncated conical hole 21.
In order to facilitate the processing of the truncated cone section 11 and the threaded section 12 on the main shaft 1, as shown in fig. 1 and 2, the right end of the main shaft 1 further comprises a cylindrical section 13 arranged between the truncated cone section 11 and the threaded section 12, and the diameter of the cylindrical section 13 is smaller than the major diameter of the threaded section 12 and the diameter of the small end of the truncated cone section 11.
For the convenience of installation, the diameter of the round hole I22 is smaller than that of the small end of the truncated conical hole 21, and the round hole II 23 is in clearance fit with the threaded section 12.
For the convenience of assembly and fastening of the connection of the main shaft 1 and the rotor 2, the taper of the truncated conical section 11 is 0.1-0.3. In this embodiment, the taper of the truncated conical section 11 is 0.2.
Furthermore, the middle part of the main shaft 1 is rotatably connected in the sleeve 5 through a bearing, and the left end of the main shaft 1 extends out of the sleeve 5 and then is connected with the grinding wheel 6.
Preferably, the grinding wheel frame body shell 7 is sleeved outside the sleeve 5, the right end of the grinding wheel frame body shell 7 is fixedly provided with the right cover 8 through a screw, the motor sleeve 9 is sleeved outside the stator 3, and the motor sleeve 9 is fixedly arranged on the right cover 8 through a screw.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides an electricity main shaft of digit control machine tool, includes main shaft (1), rotor (2) and stator (3), its characterized in that: rotor (2) suit is at main shaft (1) right-hand member, main shaft (1) right-hand member includes that the diameter is big left and small right truncated cone section (11) and is located screw thread section (12) on truncated cone section (11) right side, rotor (2) inner circle includes truncated cone hole (21) with truncated cone section (11) looks adaptation and supplies screw thread section (12) to pass through round hole (22), screw thread section (12) pass round hole (22) and nut (4) spiro union, and the left end face of nut (4) is contradicted with the right-hand member face of rotor (2) spacing.
2. The electric spindle of a numerical control machine tool according to claim 1, characterized in that: the inner ring of the rotor (2) further comprises a round hole II (23) arranged between the truncated conical hole (21) and the round hole I (22), and the diameter of the round hole II (23) is larger than that of the small end of the truncated conical hole (21).
3. The electric spindle of a numerical control machine tool according to claim 2, characterized in that: the diameter of the round hole I (22) is smaller than that of the small end of the truncated conical hole (21), and the round hole II (23) is in clearance fit with the threaded section (12).
4. The electric spindle of a numerical control machine tool according to claim 1, characterized in that: the right end of the main shaft (1) further comprises a cylindrical section (13) arranged between the truncated cone section (11) and the threaded section (12), and the diameter of the cylindrical section (13) is smaller than the major diameter of the threaded section (12) and the diameter of the small end of the truncated cone section (11).
5. The electric spindle of a numerical control machine tool according to claim 1, characterized in that: the taper of the truncated conical section (11) is 0.1-0.3.
6. The electric spindle of a numerical control machine according to claim 1, characterized in that: the middle of the main shaft (1) is rotatably connected into the sleeve (5) through a bearing, and the left end of the main shaft (1) extends out of the sleeve (5) and then is connected with the grinding wheel (6).
7. The electric spindle of a numerical control machine tool according to claim 6, characterized in that: the grinding wheel frame shell (7) is sleeved outside the sleeve (5), the right end of the grinding wheel frame shell (7) is fixedly provided with a right cover (8) through a screw, the stator (3) is sleeved with a motor sleeve (9), and the motor sleeve (9) is fixedly arranged on the right cover (8) through a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223199250.1U CN218656833U (en) | 2022-11-30 | 2022-11-30 | Electric spindle of numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223199250.1U CN218656833U (en) | 2022-11-30 | 2022-11-30 | Electric spindle of numerical control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218656833U true CN218656833U (en) | 2023-03-21 |
Family
ID=85543433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223199250.1U Active CN218656833U (en) | 2022-11-30 | 2022-11-30 | Electric spindle of numerical control machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218656833U (en) |
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2022
- 2022-11-30 CN CN202223199250.1U patent/CN218656833U/en active Active
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