Spindle head of machine tool

专利摘要:
The present invention relates to a spindle head of a machine tool. The spindle head of the machine tool according to the present invention includes first spindles coupled to the output shaft of the spindle motor and second spindles arranged to form a predetermined angle with respect to the first spindles and rotated in conjunction with rotation of the first spindles. The work for changing the processing direction of the workpiece can be made very quickly and easily, and the cost can be reduced because no complicated mechanical device is required.
公开号:KR19980060780A
申请号:KR1019960080147
申请日:1996-12-31
公开日:1998-10-07
发明作者:이재신
申请人:이대원；삼성항공산업 주식회사；
IPC主号:

专利说明:

Spindle head of machine tool
The present invention relates to a spindle head of a machine tool.
Machine tools for processing various machine elements are provided with a main body and a spindle head mounted on the main body to support a tool and to rotate the tool. 1 schematically shows a spindle head of a milling machine as an example of the spindle head described above. The spindle head 10 includes a spindle box 11 installed on the main body 1 of the milling machine so as to be elevated along the guide 2, and a spindle motor 12 and the spindle 13 installed on the spindle box 11. Equipped. Spindle 13 is rotatably coupled to the spindle box 11 by bearings 14, the upper end is fixed to the output shaft of the spindle motor 12 is to be rotated by the spindle motor 12. A tool fixing portion 13a is provided at the lower end of the spindle 13, and a tool 3 for processing a workpiece is fixed to the tool fixing portion 13a by screws 19 or the like.
In this spindle head 10, when the tool 3 is fixed to the tool fixing part 13a of the spindle 13 and the spindle motor 12 is rotated, the rotational force is transmitted to the tool 3 through the spindle 13. The tool 3 is transmitted and rotated, and milling of the workpiece is performed by the rotated tool 3.
On the other hand, in the conventional spindle head 10 having the configuration as shown in FIG. 1, the spindle 13 is disposed vertically, and the tool 3 rotates with respect to the center axis of the spindle 13. Therefore, vertical milling operations are possible, but horizontal milling operations, that is, milling operations in which the tool 3 must be rotated about an imaginary line perpendicular to the vertically arranged spindle 13 cannot be performed. . If a machine tool having a vertically arranged spindle head as described above is intended to be changed to a horizontal milling operation during a vertical milling operation, the tool coupled to the spindle must be disconnected and the so-called angle head in place. After the installation of a complex mechanical device called ie a separate, complex mechanical device with a horizontally arranged axis of rotation, the tool must be coupled to the axis of rotation.
However, the above-mentioned angle head is not only expensive, but also very difficult and time-consuming to install and remove the angle head, and the loss of power is generated in the coupling portion between the spindle head and the angle head, powerful machining work There is a problem that is not easy to perform.
The present invention has been made to solve the above problems, and an object of the present invention is to provide a spindle head of a machine tool which is improved to enable horizontal and vertical machining without a separate complicated mechanical device.
1 is a schematic cross-sectional view of a spindle head portion of a conventional machine tool,
2 is a schematic cross-sectional view of a major portion of a machine tool with a spindle head in accordance with an embodiment of the present invention.
Explanation of symbols for main parts of the drawings
20 Spindle head 21 Spindle box
22 Spindle motor 23 First spindle
231 ... Tool Government 24 ... 2nd Spindle
241.Tool High Government 27 ... Bevel Gears
28 2nd bevel gear 3 tool
In order to achieve the above object, the spindle head of a machine tool according to the present invention, which is installed in a machine tool and rotatably supports a tool, includes a spindle box, a spindle motor installed in the spindle box, and a spindle box. First spindles rotatably installed and connected to the spindle motor and having a tool fixing part for fixing the tool, and installed at the spindle box at a predetermined angle with the first spindles so as to interlock with the rotation of the first spindles. It is characterized in that it is configured to secure the tool to at least one of the first spindle and the second spindle having a second spin that is rotated and having a tool fixing for fixing the tool.
In the present invention, it is preferable that the second spins are installed at right angles to the first spins, and the second spins are respectively coupled to the second spins and the first spins and bevel gears engaged with each other. Through this, it is preferable to rotate in conjunction with the rotation of the first spin.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
2 is a schematic cross-sectional view of an essential part of a machine tool with a spindle head according to the invention.
Referring to the drawings, the spindle head 20 according to the present invention is installed in the main body 1 of a milling machine as a machine tool. The spindle head 20 includes a spindle box 21, a spindle motor 22, first spindles 23, and second spindles 24.
The spindle box 21 is slidably coupled to the guide 2 installed in the milling machine main body 1 so that the spindle box 21 can be elevated along the guide 2. The spindle motor 22 is fixed to the upper end of the spindle box 21, the first spindle 23 is rotatably supported through the bearings 25 to the spindle box (21). The upper end of the first spindle 23 is coupled to the output shaft of the spindle motor 22, and the tool 3 such as a milling cutter is fixed to the lower end of the first spindle 23 so that the tool 3 can be fixed by the bolt 231a. The fixing part 231 is provided. The second spindles 24 are also rotatably installed in the spindle box 21 by the bearings 25 and are arranged to form an angle of 90 degrees with the first spindles 23. A tool fixing part 241 is provided at one end of the second spins 24 so that the tool 3 can be fixed by a bolt 241a or the like as the first spins 23.
Meanwhile, a first bevel gear 27 is coaxially coupled to the first spins 23, and a second bevel gear 28 is coaxial with the second spins 24 to the second spins 24. It is coupled to the first bevel gear 27 is engaged.
In the spindle head 20 of the machine tool having such a configuration, when the output shaft of the spindle motor 22 is rotated, the first spindle 23 connected to the spindle motor 22 is rotated, and the first bevel gear ( 27 and the second spindles 24 connected to the first spindles 23 through the second bevel gear 28 are rotated together. Therefore, in the case where the machining is to be performed in the vertical direction to the workpiece, the tool 3 may be coupled to the tool fixing part 231 of the first spindle 23 arranged vertically. When the machining is to be performed, the tool 3 may be coupled to the tool fixing part 241 of the second spindle 24 arranged horizontally.
On the other hand, for example, in the case of using the tool 3 to the tool fixing part 231 of the first spindle 23, a protective member is put on the tool fixing part 241 of the second spindle 24 to be safe. It is desirable to prevent accidents and to protect the tool fixing part.
As can be seen from the above description, since the spindle head 20 of the present embodiment includes the first spindles 23 arranged vertically and the second spindles arranged to form a predetermined angle with respect to the first spindles 23. For example, a tool for changing the machining direction of the workpiece is fixed to the second spindles 24 or the tool 3 fixed to the first spindles 23, for example. It is completed simply by fixing (3) to the first spindles (23). Therefore, the work of changing the processing direction of the workpiece can be made very quickly and easily, and the cost can be reduced because it does not require a separate complicated mechanical device such as an angle head used in the prior art.
In the present embodiment, the spindle head mounted on the milling machine has been described, but the spindle head according to the present invention may be widely applied to other machine tools as well as the milling machine.
In addition, in the present exemplary embodiment, the first bevel gear 27 and the second bevel gear 28 are provided to allow the second spindles 24 to rotate in conjunction with the first spindles 23. The mechanism for transmitting the rotational force of the spindle 23 to the second spindles 24 may be employed in addition to the above-described bevel gears.
As described above, the spindle head of the machine tool according to the present invention includes a first spindle coupled to an output shaft of the spindle motor and a second spindle disposed to form a predetermined angle with respect to the first spindle and rotated in conjunction with rotation of the first spindle. With a spindle, the work for changing the processing direction of the workpiece can be made very quickly and easily, and the cost can be reduced because no complicated mechanical device is required.

权利要求:
Claims (3)
[1" claim-type="Currently amended] In a spindle head of a machine tool installed in the machine tool and rotatably supporting the tool,
Spindle box,
A spindle motor installed in the spindle box,
First spindles rotatably installed in the spindle box and connected to the spindle motor and having a tool fixing part for fixing the tool;
It is provided to the spindle box to form a predetermined angle with the first spindle is rotated in conjunction with the rotation of the first spindle and having a second spindle having a tool fixing for fixing the tool,
The spindle head of the machine tool, characterized in that configured to secure the tool to at least one of the first and second spindles.
[2" claim-type="Currently amended] The method of claim 1,
The second spindle is the spindle head of the machine tool, characterized in that installed at right angles to the first spindle.
[3" claim-type="Currently amended] The method according to claim 1 or 2,
A first bevel gear coaxially coupled to the first spindle,
A second bevel gear that is coaxially coupled to the second spindle and engaged with the first bevel gear,
The second spindle is the spindle head of the machine tool, characterized in that rotated in conjunction with the rotation of the first spindle through the first bevel gear and the second bevel gear.

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同族专利:

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公开号 | 公开日

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KR100226718B1|1999-10-15|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
1996-12-31|Application filed by 이대원, 삼성항공산업 주식회사

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1996-12-31|Priority to KR1019960080147A

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1998-10-07|Publication of KR19980060780A

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1999-10-15|Application granted

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1999-10-15|Publication of KR100226718B1

优先权:

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申请号 | 申请日 | 专利标题

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KR1019960080147A|KR100226718B1|1996-12-31|1996-12-31|Spindle head of machine tool|