阅读说明：本技术 一种数控机床 (Numerical control machine tool ) 是由 陈广成 于 2021-07-22 设计创作，主要内容包括：本申请公开一种数控机床。数控机床包括：主轴和温控装置；主轴用于安装预设的加工件,以对预设工件进行加工；主轴上开设有温控空腔及连通温控空腔的第一通道和第二通道；温控装置包括第一出液口和第二出液口,第一出液口与第一通道连通；第二出液口与第二通道连通；温控装置用于在主轴温度达到第一预设温度时,向温控空腔内输入冷却液以对主轴降温；且,在主轴温度小于第二预设温度时,向温控空腔内输入加热液以对主轴加热。通过上述方案,可以使得主轴运行时的温度保持在预设的范围内,从而提高主轴的使用寿命。(The application discloses digit control machine tool. Digit control machine tool includes: a main shaft and a temperature control device; the main shaft is used for mounting a preset workpiece so as to process the preset workpiece; the main shaft is provided with a temperature control cavity, a first channel and a second channel which are communicated with the temperature control cavity; the temperature control device comprises a first liquid outlet and a second liquid outlet, and the first liquid outlet is communicated with the first channel; the second liquid outlet is communicated with the second channel; the temperature control device is used for inputting cooling liquid into the temperature control cavity to cool the spindle when the temperature of the spindle reaches a first preset temperature; and when the temperature of the main shaft is lower than a second preset temperature, heating liquid is input into the temperature control cavity to heat the main shaft. Through the scheme, the temperature of the main shaft during operation can be kept within a preset range, so that the service life of the main shaft is prolonged.)

1. A numerically controlled machine tool, characterized in that said numerically controlled machine tool comprises: a main shaft and a temperature control device;

the main shaft is used for mounting a preset workpiece so as to process the preset workpiece; the spindle is provided with a temperature control cavity, a first channel and a second channel which are communicated with the temperature control cavity;

the temperature control device comprises a first liquid outlet and a second liquid outlet, and the first liquid outlet is communicated with the first channel; the second liquid outlet is communicated with the second channel;

the temperature control device is used for inputting cooling liquid into the temperature control cavity to cool the spindle when the temperature of the spindle reaches a first preset temperature; and when the temperature of the main shaft is lower than a second preset temperature, heating liquid is input into the temperature control cavity to heat the main shaft.

2. The numerical control machine according to claim 1,

the spindle comprises a temperature control cavity and a rotating shaft, the temperature control cavity is arranged in the temperature control cavity, and the first channel and the second channel are both arranged on the temperature control cavity;

one end of the rotating shaft penetrates through the temperature control cavity and is in running fit with the temperature control cavity.

3. The numerical control machine according to claim 2,

the number of the first channels or the second channels is at least two, and the first channels or the second channels are sequentially arranged at intervals along the axial direction of the rotating shaft.

4. The numerical control machine according to any one of claims 1 to 3,

the numerical control machine tool also comprises a main control device and a temperature sensing device, wherein the temperature sensing device is used for sensing the temperature of the main shaft;

the main control device is in communication connection with the temperature control device and is used for controlling the temperature control device according to the temperature sensed by the temperature sensing device.

5. The numerical control machine according to claim 4,

the temperature control device comprises a box body, wherein a liquid cavity is formed in the box body and used for placing temperature control liquid;

the liquid cavity is communicated with the first liquid outlet and the second liquid outlet.

6. The numerical control machine according to claim 5,

the temperature control device also comprises a heating device and a cooling device; the heating device and the cooling device are both arranged on the box body;

the heating device is used for heating the temperature control liquid when the temperature of the main shaft reaches a first preset temperature; and the temperature control liquid is used for cooling the temperature control liquid when the temperature of the main shaft is lower than a second preset temperature.

Technical Field

The application relates to the technical field of automatic processing equipment, in particular to a numerical control machine tool.

Background

The numerical control machine tool is a short name of a digital control machine tool (Computer numerical control machine tools), and is an automatic machine tool provided with a program control system. The control system is capable of logically processing and decoding a program defined by a control code or other symbolic instructions, represented by coded numbers, which are input to the numerical control device via the information carrier.

The existing numerical control machine tool generally comprises a main shaft, one end of the main shaft is connected with a power device, one end of the main shaft is connected with a workpiece such as a milling cutter and the like, the milling cutter can be driven to rotate through the main shaft, and the position of the milling cutter can be adjusted through the main shaft, so that a preset workpiece can be processed into a required shape.

However, the existing numerical control machine tool does not have a system for adjusting the temperature of the main shaft in the operation process of the main shaft, so that the main shaft is easy to damage in the operation process.

Disclosure of Invention

The application provides a digit control machine tool to solve above-mentioned technical problem.

In order to solve the technical problem, the application adopts a technical scheme that: providing a numerically controlled machine tool, said numerically controlled machine tool comprising: a main shaft and a temperature control device;

the main shaft is used for mounting a preset workpiece so as to process the preset workpiece; the spindle is provided with a temperature control cavity, a first channel and a second channel which are communicated with the temperature control cavity;

the temperature control device comprises a first liquid outlet and a second liquid outlet, and the first liquid outlet is communicated with the first channel; the second liquid outlet is communicated with the second channel;

the temperature control device is used for inputting cooling liquid into the temperature control cavity to cool the spindle when the temperature of the spindle reaches a first preset temperature; and when the temperature of the main shaft is lower than a second preset temperature, heating liquid is input into the temperature control cavity to heat the main shaft.

Optionally, the spindle includes a temperature control cavity and a rotating shaft, the temperature control cavity is disposed in the temperature control cavity, and the first channel and the second channel are both opened on the temperature control cavity;

one end of the rotating shaft penetrates through the temperature control cavity and is in running fit with the temperature control cavity.

Optionally, the number of the first channels or the second channels is at least two, and the first channels or the second channels are sequentially arranged at intervals along the axial direction of the rotating shaft.

Optionally, the numerical control machine further comprises a main control device and a temperature sensing device, wherein the temperature sensing device is used for sensing the temperature of the spindle;

the main control device is in communication connection with the temperature control device and is used for controlling the temperature control device according to the temperature sensed by the temperature sensing device.

Optionally, the temperature control device comprises a box body, a liquid cavity is formed in the box body, and the liquid cavity is used for placing temperature control liquid;

the liquid cavity is communicated with the first liquid outlet and the second liquid outlet.

Optionally, the temperature control device further comprises a heating device and a cooling device; the heating device and the cooling device are both arranged on the box body;

the heating device is used for heating the temperature control liquid when the temperature of the main shaft reaches a first preset temperature; and is

And the temperature control liquid is used for cooling the temperature control liquid when the temperature of the main shaft is lower than a second preset temperature.

The beneficial effect of this application is: in the scheme of the application, when the temperature of the main shaft reaches a first preset temperature, the temperature control device inputs cooling liquid into the temperature control cavity through the first liquid outlet so as to cool the main shaft; and when the temperature of the main shaft is lower than a second preset temperature, the temperature control device inputs heating liquid into the temperature control cavity through the second liquid outlet to heat the main shaft, so that real-time temperature control can be performed on the main shaft of the numerical control machine tool during operation, the temperature of the main shaft during operation is stable, and the service life of the main shaft is prolonged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

fig. 1 is a schematic structural diagram of an embodiment of a numerical control machine tool provided in the present application;

FIG. 2 is a schematic structural view of an embodiment of a spindle in the numerical control machine shown in FIG. 1;

fig. 3 is a schematic structural view of another embodiment of a spindle in the numerical control machine tool shown in fig. 1.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-2, fig. 1 is a schematic structural diagram of an embodiment of a numerical control machine tool provided in the present application; fig. 2 is a schematic structural view of an embodiment of a spindle in the numerical control machine tool shown in fig. 1.

The numerical control machine tool 10 includes a spindle 100 and a temperature control device 200. The spindle 100 is used for mounting a preset workpiece to process the preset workpiece; the main shaft 100 is provided with a temperature control cavity 101, and a first channel 102 and a second channel 103 which are communicated with the temperature control cavity 101.

The temperature control device 200 comprises a first liquid outlet 210 and a second liquid outlet 220, wherein the first liquid outlet 210 is communicated with the first channel 102; the second liquid outlet 220 is communicated with the second passage 103; therefore, when the temperature of the spindle 100 reaches the first preset temperature, the temperature control device 200 can input the cooling liquid into the temperature control cavity 101 through the first liquid outlet 210 to cool the spindle 100; and, when the temperature of the main shaft 100 is lower than the second preset temperature, the temperature control device 200 may input the heating liquid into the temperature control cavity 101 through the second liquid outlet 220 to heat the main shaft 100.

Wherein the first preset temperature is higher than the second preset temperature.

Therefore, in the scheme of the application, when the temperature of the main shaft reaches a first preset temperature, the temperature control device inputs cooling liquid into the temperature control cavity through the first liquid outlet so as to cool the main shaft; and when the temperature of the main shaft is lower than a second preset temperature, the temperature control device inputs heating liquid into the temperature control cavity through the second liquid outlet to heat the main shaft, so that real-time temperature control can be performed on the main shaft of the numerical control machine tool during operation, the temperature of the main shaft during operation is stable, and the service life of the main shaft is prolonged.

Please further refer to fig. 2.

In this embodiment, the spindle 100 includes a temperature control cavity 110 and a rotating shaft 120, the temperature control cavity 101 is disposed in the temperature control cavity 110, and the first channel 102 and the second channel 103 are both disposed on the temperature control cavity 110. One end of the rotating shaft 120 may penetrate through the temperature control cavity 110 and pass through the temperature control cavity 101, and the rotating shaft 120 is rotatably engaged with the temperature control cavity 110.

Specifically, one end of the rotating shaft 120 may be connected to a power device, and the other end of the rotating shaft 120 may be connected to a workpiece such as a milling cutter.

Wherein, power device can drive axis of rotation 120 and rotate, and then drives machined part such as milling cutter and rotate to can realize predetermineeing the work piece processing.

Further, in this embodiment, the numerical control machine 10 further includes a main control device 300 and a temperature sensing device (not shown in the figure), the temperature sensing device is used for sensing the temperature of the spindle 100; the main control device 300 may receive the temperature information of the spindle 100 detected by the temperature sensing device.

The master control device 300 is also in communication connection with the temperature control device 200, wherein the master control device 300 can be in wireless communication connection with the temperature control device 200 in a wireless communication mode such as radio, wifi, bluetooth, local area network and the like; alternatively, the main control device 300 may be electrically connected to the temperature control device 200.

The main control device 300 may control the temperature control device 200 according to the temperature information of the spindle 100 detected by the temperature sensing device.

Specifically, when the temperature sensing device detects that the temperature of the spindle 100 reaches a first preset temperature, the main control device 300 may send a control signal to the temperature control device 200, and then control the temperature control device 200 to input the cooling liquid into the temperature control cavity 101 through the first liquid outlet 210 via the first channel 102, so as to cool the spindle 100, and keep the temperature of the spindle 100 at a temperature lower than the first preset temperature.

When the temperature sensing device detects that the temperature of the spindle 100 is lower than the second preset temperature, the main control device 300 may send a control signal to the temperature control device 200, and then control the temperature control device 200 to input the heating liquid into the temperature control cavity 101 through the second liquid outlet 220 via the second channel 103, so as to heat the spindle 100, and keep the temperature of the spindle 100 at the second preset temperature or higher.

Specifically, the temperature control device 200 includes a box 201, and a liquid chamber (not shown in the figure) is formed in the box 201 and used for placing a temperature control liquid; the liquid chamber is connected to both the first liquid outlet 210 and the second liquid outlet 220.

In this embodiment, a heating device 202 and a cooling device 203 are also installed in the box 201. The heating device 202 may be configured to heat the temperature-controlled liquid in the liquid chamber to form a heating liquid as described above, and the cooling device 203 may be configured to cool the temperature-controlled liquid in the liquid chamber to form a cooling liquid as described above.

Specifically, when the temperature sensing device detects that the temperature of the spindle 100 reaches a first preset temperature, the main control device 300 may send a control signal to the temperature control device 200, so as to control the cooling device 203 to cool the temperature control liquid in the liquid cavity to form a cooling liquid, and further control the temperature control device 200 to input the cooling liquid into the temperature control cavity 101 through the first liquid outlet 210 via the first channel 102, so as to cool the spindle 100 and keep the temperature of the spindle 100 at a temperature lower than the first preset temperature; in this embodiment, after the cooling liquid input into the temperature control cavity 101 cools the spindle 100, the temperature of the cooling liquid may rise, and the cooling liquid with the raised temperature may return to the liquid cavity through the second channel 103 and the second liquid outlet 220, so as to form a cooling cycle of the cooling liquid.

When the temperature sensing device detects that the temperature of the spindle 100 is lower than a second preset temperature, the main control device 300 may send a control signal to the temperature control device 200, so as to control the heating device 202 to heat the temperature control liquid in the liquid cavity to form a heating liquid, and further control the temperature control device 200 to input the heating liquid into the temperature control cavity 101 through the second liquid outlet 220 via the second channel 103, so as to heat the spindle 100, and keep the temperature of the spindle 100 at a temperature greater than or equal to the second preset temperature; in this embodiment, after the spindle 100 is heated by the heating fluid input into the temperature control cavity 101, the temperature of the heating fluid is reduced, and the heating fluid with the reduced temperature can return to the fluid cavity through the first channel 102 and the first fluid outlet 210, so as to form a heating cycle of the heating fluid.

Further, in this embodiment, the first passage 102 and the second passage 103 may be valve bodies disposed on the temperature control chamber 110, and the first liquid outlet 210 and the first passage 102, and the second liquid outlet 220 and the second passage 103 may be connected by pipes.

Wherein, the number of the first channel 102 and the second channel 103 may be one.

In other embodiments, the number of first channels 102 or second channels 103 may be at least two.

Taking the number of the first channels 102 as at least two as an example, please refer to fig. 3, fig. 3 is a schematic structural diagram of another embodiment of the spindle in the numerical control machine shown in fig. 1.

In this embodiment, the number of the first channels 102 is at least two, and the number of the second channels 103 may also be one or at least two.

At least two first channels 102 or second channels 103 are sequentially arranged at intervals along the axial direction of the rotating shaft 120.

Further, in this embodiment, the box 201 may further include a control unit 204, and the control unit 204 may set the first preset temperature and the second preset temperature.

In summary, in the scheme of the application, when the temperature of the main shaft reaches the first preset temperature, the temperature control device inputs cooling liquid into the temperature control cavity through the first liquid outlet to cool the main shaft; and when the temperature of the main shaft is lower than a second preset temperature, the temperature control device inputs heating liquid into the temperature control cavity through the second liquid outlet to heat the main shaft, so that real-time temperature control can be performed on the main shaft of the numerical control machine tool during operation, the temperature of the main shaft during operation is stable, and the service life of the main shaft is prolonged.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.