CN218476064U - Milling machine spindle - Google Patents
Milling machine spindle Download PDFInfo
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- CN218476064U CN218476064U CN202222512660.0U CN202222512660U CN218476064U CN 218476064 U CN218476064 U CN 218476064U CN 202222512660 U CN202222512660 U CN 202222512660U CN 218476064 U CN218476064 U CN 218476064U
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- end cover
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Abstract
A main shaft of a milling machine comprises an outer shaft and an inner shaft pivoted in the outer shaft, wherein a bearing is arranged between the outer shaft and the inner shaft, and the lower end of the outer shaft is provided with an end cover; the end cover is internally provided with a first channel, the inner shaft is internally provided with a second channel, the inlet end of the first channel is arranged on the outer wall of the end cover, the outlet end of the first channel is annular and is arranged on the inner wall of the end cover, the inlet end of the second channel is arranged on the outer wall of the inner shaft and corresponds to the outlet end of the first channel, and the outlet end of the second channel is arranged on the lower end face of the inner shaft. The end cover is matched with the inner shaft in a rotating mode to replace the function of a rotating joint, so that the channel can be positioned in the main shaft, the gas-liquid conveying structure is simplified, and the occupied space is reduced.
Description
Technical Field
The utility model relates to a lathe, especially a milling machine main shaft.
Background
The process for machining the workpiece by the numerical control milling machine comprises the following steps: firstly, a machining process is formulated according to the technical requirements of the shape, the size, the precision, the surface roughness and the like of the part, and machining parameters are selected. The programmed machining program is input into the control system by manual programming or by programming with automatic programming software. And then the control system transmits an instruction to the servo system after processing the machining program, and the servo system sends a control signal to the servo motor. Spindle drive system rotates the tool, X, Y and Z
The directional servo motor controls the cutter and the workpiece to move relatively according to a certain track, so that the cutting of the workpiece is realized. Therefore, when the cutter and the workpiece move relatively, a large amount of heat is generated on the cutter due to mutual friction, and part of the scraps can be adhered to the cutter head of the cutter. When the cutter is heated greatly and the cutter head is stuck with material chips, the service life of the cutter can be greatly shortened, and the machining precision is greatly influenced, so that when the numerical control milling machine machines a workpiece, the cutter must be cooled, and the material chips on the cutter head can be removed. At present, a vertical device is generally arranged on a milling machine, an air blow pipe of a vertical rotating shaft is arranged outside a main shaft, for example, a high-efficiency milling machine air blow device with the Chinese patent publication number of CN106926051A comprises a milling machine control system, a main shaft box is arranged at the lower end of the milling machine control system, a milling cutter is arranged at the lower end of the main shaft box, an annular track is fixedly arranged on the lower end face of the milling machine control system, a rotating disc is connected on the annular track in a sliding mode, a plurality of air jet pipes are arranged on the rotating disc, an air jet head is arranged at one end of each air jet pipe, and the air jet head is opposite to the milling cutter. The air injection pipe of the peripheral equipment occupies space, and injects air towards one direction, so that the material scraps are not cleaned completely.
Disclosure of Invention
The utility model aims to solve the technical problem that a milling machine main shaft is provided, solve gas-liquid conveying mechanism area occupied and the complicated problem of structure.
In order to solve the above technical problem, one of the technical solutions of the utility model is: a main shaft of a milling machine comprises an outer shaft and an inner shaft pivoted in the outer shaft, wherein a bearing is arranged between the outer shaft and the inner shaft, and the lower end of the outer shaft is provided with an end cover; the end cover is internally provided with a first channel, the inner shaft is internally provided with a second channel, the inlet end of the first channel is arranged on the outer wall of the end cover, the outlet end of the first channel is annular and is arranged on the inner wall of the end cover, the inlet end of the second channel is arranged on the outer wall of the inner shaft and corresponds to the outlet end of the first channel, and the outlet end of the second channel is arranged on the lower end face of the inner shaft. The end cover is rotatably matched with the inner shaft to replace a rotary joint, so that the channel can be positioned in the main shaft, the gas-liquid conveying mechanism is simplified, and the occupied space is reduced.
As an improvement, two oil seals are arranged between the end cover and the inner shaft, and the outlet end of the first channel is arranged between the two oil seals.
As an improvement, a raised mounting head 21 is arranged at the lower end of the inner shaft, the outlet end of the second channel is arranged on the mounting head 21, a cutter head is arranged at the lower end of the inner shaft, a mounting hole is formed in the middle of the cutter head, and the mounting head 21 is matched with the mounting hole.
For solving the above technical problem, the second technical scheme of the utility model: a milling machine air blowing device comprises a main shaft, wherein the main shaft comprises an outer shaft and an inner shaft pivoted in the outer shaft, a bearing is arranged between the outer shaft and the inner shaft, and an end cover is arranged at the lower end of the outer shaft; the air blowing device comprises a first channel arranged in the end cover and a second channel arranged in the inner shaft, wherein the inlet end of the first channel is arranged on the outer wall of the end cover, the outlet end of the first channel is arranged on the inner wall of the end cover, the inlet end of the second channel is annular and arranged on the outer wall of the inner shaft, the outlet end of the first channel corresponds to the inlet end of the second channel, and the outlet end of the second channel is arranged on the lower end face of the inner shaft.
Compared with the prior art, the utility model the beneficial effect who brings is:
1. the end cover is rotationally matched with the inner shaft to replace the function of a rotary joint, so that the channel can be positioned in the main shaft, the gas-liquid conveying mechanism is simplified, and the occupied space is reduced;
2. when the blowing and scrap removing device is used for blowing and removing scraps, the air jet is arranged at the lower end of the inner shaft, and blown high-pressure air directly acts on the surface of a workpiece and then is dispersed to the periphery, so that the scraps on the periphery can be quickly removed;
3. the device can be used as a liquid cooling device and an air cooling device, and a cooling medium is applied to a processing surface through the matching action of the end cover and the inner shaft channel.
Drawings
Fig. 1 is a schematic view of the spindle.
Fig. 2 is an enlarged view of fig. 1 at a.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1 and 2, the milling machine spindle comprises an outer shaft 1 and an inner shaft 2 pivoted in the outer shaft 1, a bearing is arranged between the outer shaft 1 and the inner shaft 2, an end cover 3 is arranged at the lower end of the outer shaft 1, the lower end of the inner shaft 2 extends out of the end cover 3 and is provided with a raised mounting head 21, a cutter head 4 is arranged at the lower end of the inner shaft 2, a mounting hole is formed in the middle of the cutter head 4, and the mounting head 21 is matched with the mounting hole.
As shown in fig. 1 and 2, the fluid medium conveying structure comprises a first passage 6 arranged in the end cover 3 and a second passage 5 arranged in the inner shaft 2; the inlet end of the first channel 6 is arranged on the outer wall of the end cover 3, and the outlet end of the first channel 6 is annular and arranged on the inner wall of the end cover 3; the inlet end of the second channel 5 is arranged on the outer wall of the inner shaft 2 and corresponds to the outlet end of the first channel 6, the inlet end of the second channel 5 can be in butt joint with the first channel 6 no matter where the inlet end rotates, so that an external air source can enter the first channel 6 and enter the second channel 5, the outlet end of the second channel 5 is arranged on the lower end face of the inner shaft 2, the outlet end of the second channel 5 leads the mounting head 21, and the air jet is located in the center of the cutter head 4. Two oil seals 7 are arranged between the end cover 3 and the inner shaft 2, the outlet end of the first channel 6 is arranged between the two oil seals 7, and the oil seals 7 can prevent leakage.
The end cover 3 is matched with the inner shaft 2 in a rotating mode to replace the function of a rotary joint, so that the channel can be positioned in the spindle, the fluid medium conveying structure is simplified, and the occupied space is reduced. When the inlet end of the first channel 6 of the end cover is connected with a high-pressure air source, the air nozzle is arranged at the lower end of the inner shaft 2, the blown high-pressure air directly acts on the surface of a workpiece and then is dispersed to the periphery, the peripheral material scraps can be rapidly removed, and the purpose of air-cooling heat dissipation of the air passage can be achieved. When the inlet end of the first channel 6 of the end cover is connected with the cooling box, the cooling liquid is output to the processing surface through the channels of the end cover and the inner shaft, and the purpose of quick cooling is achieved.
Example 2
As shown in fig. 1 and 2, the difference from embodiment 1 is: the fluid medium conveying structure comprises a first channel 6 arranged in the end cover 3 and a second channel 5 arranged in the inner shaft 2, wherein the inlet end of the first channel 6 is arranged on the outer wall of the end cover 3, the outlet end of the first channel 6 is arranged on the inner wall of the end cover 3, the inlet end of the second channel 5 is annular and arranged on the outer wall of the inner shaft 2, the outlet end of the first channel 6 corresponds to the inlet end of the second channel 5, and the outlet end of the second channel 5 is arranged on the lower end face of the inner shaft 2.
Claims (4)
1. A main shaft of a milling machine comprises an outer shaft and an inner shaft pivoted in the outer shaft, wherein a bearing is arranged between the outer shaft and the inner shaft, and the lower end of the outer shaft is provided with an end cover; the method is characterized in that: the end cover is internally provided with a first channel, the inner shaft is internally provided with a second channel, the inlet end of the first channel is arranged on the outer wall of the end cover, the outlet end of the first channel is annular and is arranged on the inner wall of the end cover, the inlet end of the second channel is arranged on the outer wall of the inner shaft and corresponds to the outlet end of the first channel, and the outlet end of the second channel is arranged on the lower end face of the inner shaft.
2. A milling machine spindle according to claim 1, wherein: two oil seals are arranged between the end cover and the inner shaft, and the outlet end of the first channel is arranged between the two oil seals.
3. A milling machine spindle according to claim 1, wherein: the lower end of the inner shaft is provided with a raised mounting head, the outlet end of the second channel is arranged on the mounting head, the lower end of the inner shaft is provided with a cutter head, the middle of the cutter head is provided with a mounting hole, and the mounting head is matched with the mounting hole.
4. A main shaft of a milling machine comprises an outer shaft and an inner shaft pivoted in the outer shaft, wherein a bearing is arranged between the outer shaft and the inner shaft, and the lower end of the outer shaft is provided with an end cover; the method is characterized in that: the end cover is internally provided with a first channel, the inner shaft is internally provided with a second channel, the inlet end of the first channel is arranged on the outer wall of the end cover, the outlet end of the first channel is arranged on the inner wall of the end cover, the inlet end of the second channel is annular and arranged on the outer wall of the inner shaft, the outlet end of the first channel corresponds to the inlet end of the second channel, and the outlet end of the second channel is arranged on the lower end face of the inner shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222512660.0U CN218476064U (en) | 2022-09-22 | 2022-09-22 | Milling machine spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222512660.0U CN218476064U (en) | 2022-09-22 | 2022-09-22 | Milling machine spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218476064U true CN218476064U (en) | 2023-02-14 |
Family
ID=85167897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222512660.0U Active CN218476064U (en) | 2022-09-22 | 2022-09-22 | Milling machine spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218476064U (en) |
-
2022
- 2022-09-22 CN CN202222512660.0U patent/CN218476064U/en active Active
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