Full-coverage constant-temperature water-cooling structure high-speed main shaft

Abstract

The utility model discloses a full-coverage constant-temperature water-cooling structure high-speed main shaft which comprises a main shaft body and an installation part, the installation part is provided with a containing cavity penetrating through the front end and the rear end of the installation part, the main shaft body is arranged in the containing cavity, and a set of constant-temperature water-cooling first cooling water way is arranged above the containing cavity and located in the installation part. A group of second cooling water paths are arranged at the side part of the opening of the accommodating cavity on the mounting piece; the problem that in the prior art, only a machining area can be cooled is solved, the problem that heat generated when the main shaft body is machined for a long time can be completely taken away is solved, the frequency of size sudden change is reduced, and the yield is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of spindle structures, in particular to a high-speed spindle with a full-coverage constant-temperature water-cooling structure. Background Art

[0002] With the development of the domestic machinery industry, more and more machine tools have sprung up. The spindle, as the soul component, plays an important role in the machining center. Now the spindle of the machining center mostly adopts three structures: natural cooling, oil cooling, and local water cooling. The first structure can be ignored. The second and third structures can basically only realize cooling for the workpiece position, and cannot cool the spindle. When the heat generated by the spindle during long-term processing cannot be completely taken away, the spindle temperature will be unstable. According to the thermal expansion and contraction characteristics of metals, it will restrict the equipment accuracy in high-precision processing applications, the frequency of dimensional mutations is high, and the processing size is unstable. Utility Model Content

[0003] The utility model aims to solve the technical problems existing in the background technology and proposes a high-speed spindle with a fully covered constant temperature water cooling structure.

[0004] According to the utility model, a fully covered constant temperature water-cooled high-speed spindle is provided, including: a spindle body and a mounting member, the mounting member is provided with a accommodating cavity penetrating the front and rear ends of the mounting member, the mounting member also includes a first cooling water path and a second cooling water path, the first cooling water path is arranged above the accommodating cavity, and the second cooling water path is arranged around the accommodating cavity.

[0005] Furthermore, the first cooling water circuit includes an upper drainage channel, a lower drainage channel, a first water inlet port and a first water outlet port, the upper drainage channel and the lower drainage channel are layered, the upper drainage channel is connected to the lower drainage channel, the first water inlet port is connected to the lower drainage channel, and the first water outlet port is connected to the upper drainage channel.

[0006] Furthermore, the upper drainage channel and the lower drainage channel are both provided with a plurality of first drainage units and a plurality of second drainage units, and adjacent first drainage units are connected through the second drainage units.

[0007] Furthermore, the second cooling water circuit includes a plurality of drainage cavities penetrating the mounting member front and back, the drainage cavities respectively forming a second water inlet port and a second water outlet port at the front and rear ends of the mounting member, and the drainage cavities are arranged around the accommodating cavity.

[0008] Furthermore, a nozzle is provided on the second water inlet port.

[0009] Furthermore, a rear cover is provided at the rear end of the mounting member, a front cover is provided at the front end of the mounting member, and the first water inlet port and the first water outlet port penetrate the outer wall of the rear cover.

[0010] Compared with the prior art, the utility model has the following beneficial technical effects: by arranging a accommodating cavity for installing the main spindle body on the mounting part, a first cooling water circuit is arranged above the accommodating cavity, and the arrangement of the first cooling water circuit can effectively dissipate heat for the main spindle body; a second cooling water circuit is arranged in a direction other than the upper part of the accommodating cavity, and the arrangement of the second cooling water circuit can effectively dissipate heat for the area to be processed in front of the main spindle body, thereby solving the problem that the prior art can only dissipate heat for the processing area, thereby improving the problem that the heat generated by the main spindle body during long-term processing can be completely taken away, reducing the frequency of dimensional mutations, and improving the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the internal structure of a high-speed spindle with a fully covered constant temperature water cooling structure in one embodiment;

[0012] Figure 2 for Figure 1 A schematic diagram of the structure of the upper drainage channel and the lower drainage channel of the high-speed spindle in the illustrated embodiment;

[0013] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the high-speed spindle in the illustrated embodiment;

[0014] Figure 4 for Figure 1 A schematic diagram of a cross-sectional structure of a high-speed spindle in a rear view in the illustrated embodiment;

[0015] Figure 5 for Figure 1 A schematic diagram of the structure of the second cooling water circuit of the high-speed spindle in the embodiment shown;

[0016] Figure 6 for Figure 1 A schematic structural diagram of the front end view of the high-speed spindle in the illustrated embodiment;

[0017] Figure 7 for Figure 1 A schematic structural diagram of a rear end view of a high-speed spindle in the illustrated embodiment;

[0018] The component numbers and names in the figures are uniformly described as follows: 1-mounting part, 10-accommodating cavity, 2-main shaft body, 30-rear cover, 300-front cover, 31-first water inlet port, 32-first water outlet port, 33-upper drainage channel, 330-first drainage unit, 331-second drainage unit, 34-lower drainage channel, 40-drainage chamber, 400-second water inlet port, 401-second water outlet port, 41-nozzle. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0020] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or a specific connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-Figure 5As shown, the utility model proposes a fully covered constant temperature water cooling structure high-speed spindle, including: a spindle body 2 and a mounting member 1, the mounting member 1 is used to be fixedly connected to the machine tool, and the mounting member 1 can also be regarded as a shell, which not only plays a protective role, but also can carry a heat dissipation structure, the mounting member 1 is provided with a receiving cavity 10 that runs through the front and rear ends of the mounting member 1, the spindle body 2 is arranged in the receiving cavity 10, the mounting member 1 also includes a first cooling water circuit and a second cooling water circuit, the first cooling water circuit is arranged above the receiving cavity 10, and the second cooling water circuit is arranged around the receiving cavity 10, when the spindle body 2 is working, most of the heat generated will flow upward, and the first cooling water circuit placed above the receiving cavity 10 can continuously play a heat dissipation effect, thereby extending the single operation time of the spindle body 2, and the second cooling water circuit can be set to cool the workpiece to be processed in front of the spindle body 2, and the first cooling water circuit and the second cooling water circuit cooperate with each other to achieve not only cooling of the workpiece position but also cooling of the spindle body 2.

[0024] In one embodiment, the first cooling water circuit includes a first water inlet port 31, a first water outlet port 32, an upper drainage channel 33 and a lower drainage channel 34. The first water inlet port 31 and the first water outlet port 32 correspond to the water outlet and water inlet of an external ice machine system. The ice machine system can circulate cooling water in the first cooling water circuit and can quickly cool the cooling water. The first water inlet port 31 is connected to the lower drainage channel 34, and the first water outlet port 32 is connected to the upper drainage channel 33. The first water inlet port 31 and the first water outlet port 32 are located at On the same vertical line, which corresponds exactly to the position of the lower drainage channel 34 and the upper drainage channel 33, the cooling water enters the lower drainage channel 34 through the first water inlet port 31, and takes away the heat generated by the main shaft body during operation during the flow, and then enters the head end of the upper drainage channel 33 through the tail end of the lower drainage channel 34. At this time, the temperature of the cooling water entering the upper drainage channel 33 has become high, and then flows out from the first water outlet port 32 into the ice machine system and is quickly cooled by the ice machine system, realizing the internal circulation water cooling function, which can continuously volatilize the heat of the main shaft body 2.

[0025] In one embodiment, in order to allow the lower drainage channel 34 to cover the accommodating cavity 10 to a greater extent and allow the cooling water to achieve a better heat dissipation effect, the upper drainage channel 33 and the lower drainage channel 34 are both provided with a plurality of first drainage units 330 and a plurality of second drainage units 331, and adjacent first drainage units 330 are connected through the second drainage units 331.

[0026] It should be noted that, in this embodiment, the two adjacent second drainage units 331 are staggered and are both located at the end of the first drainage unit 330, so that the entire lower drainage channel 34 and the upper drainage channel 33 are in a tortuous shape. This design can prolong the residence time of the cooling water in the lower drainage channel 34 so that the cooling water can take away more heat. At the same time, it can also prolong the residence time of the cooling water in the upper drainage channel 33 so that the cooling water has enough time to cool down in the upper drainage channel 33.

[0027] In one embodiment, the second cooling water circuit includes a plurality of drainage cavities 40 that penetrate the mounting member 1 from front to back, the drainage cavities 40 respectively forming a second water inlet port 400 and a second water outlet port 401 at the front and rear ends of the mounting member 1, and the drainage cavities 40 are arranged around the accommodating cavity 10, and the drainage cavities 40 form an arc shape with an opening facing upward, so that the second cooling water circuit can not only spray water to dissipate heat in the processing area, but also take away the heat around the accommodating cavity, thereby enhancing the heat dissipation effect of the high-speed spindle.

[0028] It should be noted that in order to allow the cooling water in the second cooling water channel to have a certain impact force so as to spray the processing area more accurately, a nozzle 41 is further provided on the first water inlet port 400.

[0029] In one embodiment, a rear cover 30 is provided at the rear end of the mounting member 1, and a front cover 300 is provided at the front end of the mounting member 1. The first water inlet port 31 and the first water outlet port 32 penetrate the outer wall of the rear cover 30. The arrangement of the rear cover 30 and the front cover 300 can avoid the first cooling water path being directly exposed to the outside, thereby avoiding the problem that the first cooling water path is damaged by debris of the workpiece to be processed when the spindle body 2 is working.

[0030] The above is a full coverage constant temperature water cooling structure high speed spindle or multiple implementation methods provided in combination with specific content, and it is not considered that the specific implementation of the utility model is limited to these descriptions. Any method, structure, etc. similar to or identical to the utility model, or a number of technical deductions or replacements made on the premise of the concept of the utility model, should be regarded as the protection scope of the utility model.

Claims

1. A high-speed spindle with a fully covered constant temperature water cooling structure, characterized in that: include: A main shaft body (2) and a mounting member (1), wherein the mounting member (1) is provided with a receiving cavity (10) penetrating the front and rear ends of the mounting member (1), and the mounting member (1) further comprises a first cooling water path and a second cooling water path, wherein the first cooling water path is arranged above the receiving cavity (10), and the second cooling water path is arranged around the receiving cavity (10).

2. The fully covered constant temperature water cooling structure high speed spindle according to claim 1 is characterized in that: The first cooling water path comprises an upper drainage channel (33), a lower drainage channel (34), a first water inlet port (31) and a first water outlet port (32); the upper drainage channel (33) and the lower drainage channel (34) are arranged in layers; the upper drainage channel (33) is connected to the lower drainage channel (34); the first water inlet port (31) is connected to the lower drainage channel (34); and the first water outlet port (32) is connected to the upper drainage channel (33).

3. The fully covered constant temperature water cooling structure high speed spindle according to claim 2 is characterized in that: The upper drainage channel (33) and the lower drainage channel (34) are both provided with a plurality of first drainage units (330) and a plurality of second drainage units (331), and adjacent first drainage units (330) are connected via the second drainage units (331).

4. The fully covered constant temperature water cooling structure high speed spindle according to claim 1 is characterized in that: The second cooling water circuit comprises a plurality of drainage cavities (40) that penetrate the mounting member (1) from front to back, the drainage cavities (40) forming a second water inlet port (400) and a second water outlet port (401) at the front and rear ends of the mounting member (1), respectively, and the drainage cavities (40) are arranged around the accommodating cavity (10).

5. The fully covered constant temperature water cooling structure high speed spindle according to claim 4 is characterized in that: The second water inlet port (400) is also provided with a nozzle (41).

6. The fully covered constant temperature water cooling structure high speed spindle according to claim 2 is characterized in that: The rear end of the mounting member (1) is provided with a rear cover (30), the front end of the mounting member (1) is provided with a front cover (300), and the first water inlet port (31) and the first water outlet port (32) penetrate the outer wall of the rear cover (30).

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