Turn-milling composite electric spindle

Abstract

The utility model belongs to the technical field of numerical control machine tools, and particularly relates to a turning and milling composite electric spindle which comprises a spindle body and a sleeve, the sleeve is arranged on the side wall of the spindle body, an oil inlet pipe is arranged on the side wall of the sleeve, an oil inlet cavity is formed in the sleeve, one end of the oil inlet pipe is connected with the oil inlet cavity, and the other end of the oil inlet pipe is connected with the oil inlet cavity. According to the turning and milling composite motorized spindle, in the working process of the turning and milling composite motorized spindle, heat dissipation can be conveniently conducted on the motorized spindle, the heat dissipation effect is good, damage to the motorized spindle caused by high heat is prevented, and the service life of the motorized spindle is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a turning and milling compound electric spindle. Background Art

[0002] The turning-milling compound machining center has the functions of turning, milling, drilling, boring, tapping, deep hole processing, turning and milling of internal and external threads, etc. These functions are mainly realized by the turning-milling compound machining power spindle.

[0003] In the existing technology, a high amount of heat is generated during the operation of the turning-milling composite electric spindle. If the heat is not dissipated in time, it is easy to cause damage to the inside of the electric spindle, shortening the service life of the electric spindle. Currently, the outside of the electric spindle is also cooled by air cooling, but the heat dissipation effect is not obvious enough. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems and / or the problems existing in the existing CNC machine tools, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a turning-milling compound electric spindle, which can facilitate the heat dissipation of the electric spindle during the operation of the turning-milling compound electric spindle, has a good heat dissipation effect, prevents the electric spindle from being damaged due to high heat, and extends the service life of the electric spindle.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0008] A turning and milling composite electric spindle comprises a spindle body and a sleeve, wherein the sleeve is arranged on the side wall of the spindle body, the side wall of the sleeve is provided with an oil inlet pipe, an oil inlet chamber is provided in the sleeve, one end of the oil inlet pipe is connected to the oil inlet chamber, the inner wall of the sleeve is provided with a spiral groove, an oil return chamber is provided in the sleeve, the two ends of the spiral groove are respectively connected to the oil inlet chamber and the oil return chamber, the side wall of the oil return chamber is provided with an oil return channel, one end of the oil return channel is connected to the oil inlet chamber, the inner wall of the oil return chamber is provided with a bracket, the side wall of the bracket is provided with a rotating shaft, and the side wall of the rotating shaft is provided with spiral blades.

[0009] As a preferred solution of a turning-milling composite electric spindle described in the utility model, a socket is provided at one end of the spindle body, a tool seat is provided on the side wall of the socket, a sealing ring is provided on the inner wall of the socket, and the socket is connected to one end of the spindle body through a sealing ring.

[0010] As a preferred solution of the turning-milling composite electric spindle described in the utility model, the side wall of the spindle body is provided with an oil outlet pipe, the oil outlet pipe is connected to the oil return chamber, and a pipe plug is provided at one end of the oil outlet pipe.

[0011] As a preferred solution of the turning-milling composite electric spindle described in the utility model, a pipe plug is provided at one end of the oil inlet pipe, and the pipe plug is detachably connected to one end of the oil inlet pipe.

[0012] As a preferred solution of the turning-milling compound electric spindle described in the utility model, the side wall of the sleeve is provided with a plurality of heat sinks, and the plurality of heat sinks are arranged in a circular array on the side wall of the sleeve.

[0013] As a preferred solution of the turning-milling compound electric spindle described in the utility model, wherein: the spiral groove is connected to the side wall of the spindle body.

[0014] As a preferred solution of the turning-milling composite electric spindle described in the utility model, wherein: the sleeve is made of heat-conducting material.

[0015] Compared with the prior art: In the present application document, 1. the cooling oil is conveniently transported to the oil inlet chamber through the oil inlet pipe, the cooling oil enters the spiral groove through the oil inlet chamber, the cooling oil is conveniently brought into contact with the main shaft body through the spiral groove, the heat on the main shaft body is conveniently taken away through the cooling oil, the rotor on the main shaft body drives the cooling oil to circulate through the spiral groove into the return oil chamber when rotating, when the cooling oil flows through the spiral blades, the spiral blades are driven to rotate through the rotating shaft, the flow performance of the cooling oil is conveniently increased through the spiral blades, and the cooling oil in the return oil chamber is conveniently circulated into the oil inlet chamber through the return oil channel 1. The heat dissipation effect is good, which prevents the electric spindle from being damaged due to high heat and prolongs the service life of the electric spindle. 2. It is connected to the rotating end of the spindle body through the socket, and the tool holder is easy to install through the socket. The sealing ring has elastic force, and the sealing ring is easy to increase the sealing of the connection between the socket and the spindle body, thereby improving the installation firmness. The milling cutter is easy to install through the tool holder, which is convenient for installation or disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0017] Figure 1 This is a structural schematic diagram of a turning and milling compound electric spindle of the utility model;

[0018] Figure 2 This is a structural sectional view of a turning-milling compound electric spindle of the utility model;

[0019] Figure 3 It is a schematic diagram of a tool holder of a turning and milling compound electric spindle of the utility model;

[0020] Figure 4 The utility model is a schematic diagram of a sealing ring of a turning and milling compound electric spindle.

[0021] In the figure: 100 main shaft body, 200 sleeve, 210 oil inlet pipe, 220 oil inlet chamber, 230 spiral groove, 240 oil return chamber, 250 oil return channel, 260 bracket, 270 rotating shaft, 280 spiral blade, 300 socket, 310 tool holder, 320 sealing ring, 400 oil outlet pipe. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The utility model provides a turning and milling compound electric spindle, see Figure 1-Figure 4 , including a main shaft body 100 and a sleeve 200, the sleeve 200 is embedded and installed on the side wall of the main shaft body 100, the right side wall of the sleeve 200 is connected with an oil inlet pipe 210, an oil inlet chamber 220 is provided in the sleeve 200, one end of the oil inlet pipe 210 is connected to the oil inlet chamber 220, a spiral groove 230 is provided on the inner wall of the sleeve 200, an oil return chamber 240 is provided in the sleeve 200, two ends of the spiral groove 230 are respectively connected to the oil inlet chamber 220 and the oil return chamber 240, an oil return channel 250 is provided on the side wall of the oil return chamber 240, one end of the oil return channel 250 is connected to the oil inlet chamber 220, a bracket 260 is fixedly installed on the inner wall of the oil return chamber 240, a rotating shaft 270 is fixedly installed on the side wall of the bracket 260, and a spiral blade 280 is rotatably connected to the side wall of the rotating shaft 270, The cooling oil can be transported to the oil inlet chamber 220 through the oil inlet pipe 210, and the cooling oil can enter the spiral groove 230 through the oil inlet chamber 220. The cooling oil can be brought into contact with the spindle body 100 through the spiral groove 230, and the heat on the spindle body 100 can be taken away by the cooling oil. When the rotor on the spindle body 100 rotates, the cooling oil can be driven to circulate through the spiral groove 230 and enter the oil return chamber 240. When the cooling oil flows through the spiral blade 280, the spiral blade 280 is driven to rotate through the rotating shaft 270. The flow performance of the cooling oil can be increased through the spiral blade 280. The cooling oil in the oil return chamber 240 can be circulated and introduced into the oil inlet chamber 220 through the oil return channel 250, so that the cooling oil can circulate and dissipate heat to the side wall of the spindle body 100, thereby improving the heat dissipation effect.

[0027] An oil outlet pipe 400 is provided on the side wall of the main shaft body 100 . The oil outlet pipe 400 is connected to the oil return chamber 240 . A pipe plug is provided at one end of the oil outlet pipe 400 . Specifically, the cooling oil can be discharged easily through the oil outlet pipe 400 , which is convenient for operation.

[0028] A pipe plug is provided at one end of the oil inlet pipe 210, and the pipe plug is detachably connected to the one end of the oil inlet pipe 210. Specifically, the pipe plug is used to seal the oil inlet pipe 210 to prevent oil leakage, which is convenient for use.

[0029] The side wall of the sleeve 200 is provided with a plurality of heat sinks in a circular array on the side wall of the sleeve 200. Specifically, the heat sinks facilitate increasing the heat dissipation performance of the sleeve 200, thereby facilitating the heat dissipation of the cooling oil and improving the heat dissipation effect.

[0030] The spiral groove 230 is connected to the side wall of the main shaft body 100 , and specifically, it is convenient for the cooling oil to contact the outer wall of the main shaft body 100 , so as to take away the heat on the main shaft body 100 and facilitate heat dissipation.

[0031] The sleeve 200 is made of a heat-conducting material, which facilitates heat dissipation and improves the heat dissipation of the device.

[0032] Combination Figure 1-Figure 4 The specific use process of a turning-milling composite electric spindle in this embodiment is as follows: cooling oil is transported to the oil inlet chamber 220 through the oil inlet pipe 210, and the cooling oil enters the spiral groove 230 through the oil inlet chamber 220. The cooling oil contacts the outer wall of the spindle body 100 through the spiral groove 230, and the heat on the spindle body 100 is taken away by the cooling oil. When the rotor on the spindle body 100 rotates, it drives the cooling oil to circulate through the spiral groove 230 and enter the return oil chamber 240. When the cooling oil flows through the spiral blades 280, it drives the spiral blades 280 to rotate through the rotating shaft 270. The use of the spiral blades 280 increases the flow performance of the cooling oil, so that the cooling oil is circulated and introduced into the oil inlet chamber 220 through the return oil channel 250, so that the cooling oil circulates and dissipates heat to the side wall of the spindle body 100, thereby improving the heat dissipation effect.

[0033] Figure 3-Figure 4 The structure diagram of the second embodiment of the turning and milling compound electric spindle of the utility model is shown. Figure 3-Figure 4 , which is different from the above-mentioned embodiment, a socket 300 is provided at one end of the spindle body 100, a tool holder 310 is provided on the side wall of the socket 300, and a sealing ring 320 is provided on the inner wall of the socket 300. The socket 300 is connected to one end of the spindle body 100 through the sealing ring 320. Specifically, the socket 300 is plugged into the rotating end of the spindle body 100, and the tool holder 310 is easily installed through the socket 300. The sealing ring 320 has elastic force, and the sealing ring 320 is easy to increase the sealing of the connection between the socket 300 and the spindle body 100, thereby improving the installation firmness. The tool holder 310 is easy to install the milling cutter, which is convenient for installation or disassembly.

[0034] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A turning and milling compound electric spindle, characterized in that: The invention comprises a main shaft body (100) and a sleeve (200), wherein the sleeve (200) is arranged on the side wall of the main shaft body (100), an oil inlet pipe (210) is arranged on the side wall of the sleeve (200), an oil inlet chamber (220) is arranged inside the sleeve (200), one end of the oil inlet pipe (210) is connected to the oil inlet chamber (220), a spiral groove (230) is arranged on the inner wall of the sleeve (200), and an oil return chamber (240) is arranged inside the sleeve (200). ), the two ends of the spiral groove (230) are respectively connected to the oil inlet chamber (220) and the oil return chamber (240), the side wall of the oil return chamber (240) is provided with an oil return channel (250), one end of the oil return channel (250) is connected to the oil inlet chamber (220), the inner wall of the oil return chamber (240) is provided with a bracket (260), the side wall of the bracket (260) is provided with a rotating shaft (270), and the side wall of the rotating shaft (270) is provided with a spiral blade (280).

2. The turning-milling compound electric spindle according to claim 1, characterized in that: A socket (300) is provided at one end of the spindle body (100), a knife seat (310) is provided on the side wall of the socket (300), a sealing ring (320) is provided on the inner wall of the socket (300), and the socket (300) is connected to one end of the spindle body (100) via the sealing ring (320).

3. The turning-milling compound electric spindle according to claim 1, characterized in that: An oil outlet pipe (400) is provided on the side wall of the main shaft body (100), the oil outlet pipe (400) is connected to the oil return chamber (240), and a pipe plug is provided at one end of the oil outlet pipe (400).

4. The turning-milling compound electric spindle according to claim 1, characterized in that: One end of the oil inlet pipe (210) is provided with a pipe plug, and the pipe plug is detachably connected to one end of the oil inlet pipe (210).

5. The turning-milling compound electric spindle according to claim 1, characterized in that: The side wall of the sleeve (200) is provided with a plurality of heat sinks, and the plurality of heat sinks are arranged in an annular array on the side wall of the sleeve (200).

6. The turning-milling compound electric spindle according to claim 1, characterized in that: The spiral groove (230) is connected to the side wall of the main shaft body (100).

7. The turning-milling compound electric spindle according to claim 1, characterized in that: The sleeve (200) is made of a heat-conducting material.

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