Main shaft cooling water jacket of machine tool

Abstract

The utility model discloses a main shaft cooling water jacket of a machine tool, which comprises an external cooling sleeve fixedly sleeved on the surface of a main shaft of the machine tool, the external cooling sleeve and the main shaft of the machine tool are both arranged on the inner side of a main shaft box, and the top end of the external cooling sleeve is provided with a cooling liquid inlet and a cooling liquid outlet. An inlet channel and an outlet channel corresponding to the cooling liquid inlet and the cooling liquid outlet are formed in the external cooling sleeve, a spiral cooling channel communicating with the outlet channel and the inlet channel is formed in the surface of the machine tool spindle, and first O-shaped sealing rings are installed on the surfaces of the two ends of the machine tool spindle correspondingly. An O-shaped sealing ring II corresponding to the O-shaped sealing ring I is mounted on the inner wall of the external cooling sleeve; the cooling water jacket capable of being installed on the machine tool spindle is designed, heat of the machine tool spindle can be effectively dissipated when the machine tool spindle operates, the effect is remarkable, machining production and assembly are simple, and long-term effective and stable operation of the machine tool spindle is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of machine tool spindle cooling technology, specifically relating to a machine tool spindle cooling water jacket. Background Technology

[0002] A CNC machining center, also known as a CNC machine tool, is a high-efficiency automated machine tool composed of mechanical equipment and a CNC system. It is suitable for processing complex parts. After a workpiece is clamped once, it can complete a lot of processing work with high precision. For batch workpieces with medium processing difficulty, its efficiency is 5 to 10 times that of ordinary equipment. In particular, it can complete many processing tasks that ordinary equipment cannot. It is more suitable for single-piece processing or small-batch multi-variety production with complex shapes and high precision requirements. The spindle of a CNC machine tool refers to the core shaft component that can drive the tool head movement on the CNC machine tool.

[0003] In the prior art, the spindle of CNC machine tools is not designed with a good heat dissipation structure, which makes it difficult for the spindle of the machining center to dissipate its own heat after high-frequency operation, which easily leads to the failure of CNC machine tools. Therefore, this utility model proposes a spindle cooling water jacket for machine tools. Utility Model Content

[0004] The purpose of this invention is to provide a spindle cooling water jacket for a machine tool to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a spindle cooling water jacket for a machine tool, comprising...

[0006] An external cooling sleeve is fitted and fixed to the surface of the machine tool spindle, and both the external cooling sleeve and the machine tool spindle are installed inside the spindle box. The top of the external cooling sleeve is provided with a coolant inlet and a coolant outlet. The interior of the external cooling sleeve is provided with an inlet channel and an outlet channel corresponding to the coolant inlet and outlet. The surface of the machine tool spindle is provided with a spiral cooling channel that communicates with the outlet channel and the inlet channel.

[0007] Preferably, O-rings are installed on both ends of the machine tool spindle.

[0008] Preferably, the inner wall of the external cooling sleeve is fitted with an O-ring two corresponding to the O-ring one.

[0009] Preferably, the top end of the outlet channel is connected to the coolant outlet, and the top end of the inlet channel is connected to the coolant inlet.

[0010] Preferably, the bottom end of the outlet channel is connected to the top end of the spiral cooling channel, and the bottom end of the inlet channel is connected to the bottom end of the spiral cooling channel.

[0011] Preferably, both the bottom end of the outlet channel and the bottom end of the inlet channel are provided with an inspection port that communicates with the surface of the external cooling sleeve.

[0012] Preferably, the surface of the external cooling sleeve is provided with two sealing screws, and the two sealing screws respectively seal the inspection ports at the bottom of the outlet channel and the inlet channel.

[0013] Preferably, the bottom surface of the external cooling sleeve is provided with multiple bolt holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by designing a cooling water jacket that can be installed on the machine tool spindle, this utility model can effectively dissipate heat from the machine tool spindle during operation, with significant effect, and is simple to process, produce and assemble, ensuring the long-term effective and stable operation of the machine tool spindle. Attached Figure Description

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the external cooling sleeve and machine tool spindle of this utility model;

[0017] Figure 3 This is a cross-sectional view of the coolant outlet of this utility model;

[0018] Figure 4 This is a cross-sectional view of the coolant inlet of this utility model;

[0019] Figure 5 This utility model Figure 3 A magnified view of a portion of region A in the middle;

[0020] Figure 6 This utility model Figure 4 A magnified view of a portion of region B in the middle;

[0021] In the diagram: 1. Spindle box; 2. External cooling sleeve; 21. Coolant inlet; 22. Coolant outlet; 23. Outlet channel; 24. Inlet channel; 25. Inspection port; 26. Sealing screw; 27. O-ring seal II; 3. Machine tool spindle; 31. Spiral cooling channel; 32. O-ring seal I. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figures 1 to 6 This is an embodiment of the present invention, which provides a technical solution: a spindle cooling water jacket for a machine tool, comprising...

[0025] An external cooling sleeve 2 is fixedly mounted on the surface of the machine tool spindle 3, and both the external cooling sleeve 2 and the machine tool spindle 3 are installed inside the spindle box 1. The top of the external cooling sleeve 2 is provided with a coolant inlet 21 and a coolant outlet 22. The interior of the external cooling sleeve 2 is provided with an inlet channel 24 and an outlet channel 23 corresponding to the coolant inlet 21 and the coolant outlet 22. The surface of the machine tool spindle 3 is provided with a spiral cooling channel 31 that communicates with the outlet channel 23 and the inlet channel 24. In actual use, the external cooling sleeve 2 and the machine tool spindle 3 are fixedly assembled. Then, the coolant inlet 21 and the coolant outlet 22 are connected to an external cooling water pump through a liquid delivery hose. Low-temperature coolant is injected into the coolant inlet 21. The low-temperature coolant enters the bottom of the spiral cooling channel 31 through the inlet channel 24 and flows with the spiral cooling channel 31 to the outlet channel 23, and finally exits from the coolant outlet 22. At the same time, it carries away the heat generated by the machine tool spindle 3 during high-speed machining and prevents the heat from being transferred to the spindle box 1.

[0026] O-ring 32 is installed on both ends of the machine tool spindle 3, and O-ring 27 corresponding to O-ring 32 is installed on the inner wall of the external cooling sleeve 2. Both O-ring 32 and O-ring 27 are made of fluororubber to ensure the sealing of the connection between the external cooling sleeve 2 and the machine tool spindle 3.

[0027] The top of the outlet channel 23 is connected to the coolant outlet 22, the top of the inlet channel 24 is connected to the coolant inlet 21, the bottom of the outlet channel 23 is connected to the top of the spiral cooling channel 31, and the bottom of the inlet channel 24 is connected to the bottom of the spiral cooling channel 31.

[0028] The bottom of the outlet channel 23 and the bottom of the inlet channel 24 are both provided with an inspection port 25 that communicates with the surface of the external cooling sleeve 2. The surface of the external cooling sleeve 2 is provided with two sealing screws 26, which respectively block the inspection ports 25 at the bottom of the outlet channel 23 and the inlet channel 24. This allows the operator to unscrew the sealing screws 26 and clear and inspect the bottom corners of the outlet channel 23 and the inlet channel 24 through the inspection ports 25, ensuring the convenience of the spindle cooling water jacket in the later maintenance.

[0029] The bottom surface of the external cooling sleeve 2 is provided with multiple bolt holes for connecting and fixing the external cooling sleeve 2 to the machine tool spindle 3.

[0030] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spindle cooling water jacket for a machine tool, characterized in that: include An external cooling sleeve (2) is fitted and fixed on the surface of the machine tool spindle (3), and both the external cooling sleeve (2) and the machine tool spindle (3) are installed inside the spindle box (1). The top of the external cooling sleeve (2) is provided with a coolant inlet (21) and a coolant outlet (22). The interior of the external cooling sleeve (2) is provided with an inlet channel (24) and an outlet channel (23) corresponding to the coolant inlet (21) and the coolant outlet (22). The surface of the machine tool spindle (3) is provided with a spiral cooling channel (31) connected to the outlet channel (23) and the inlet channel (24).

2. The spindle cooling water jacket of a machine tool according to claim 1, characterized in that: O-rings (32) are installed on both ends of the machine tool spindle (3).

3. A spindle cooling water jacket for a machine tool according to claim 2, characterized in that: The inner wall of the external cooling sleeve (2) is equipped with an O-ring two (27) corresponding to the O-ring one (32).

4. A spindle cooling water jacket for a machine tool according to claim 1, characterized in that: The top of the outlet channel (23) is connected to the coolant outlet (22), and the top of the inlet channel (24) is connected to the coolant inlet (21).

5. A spindle cooling water jacket for a machine tool according to claim 1, characterized in that: The bottom end of the outlet channel (23) is connected to the top end of the spiral cooling channel (31), and the bottom end of the inlet channel (24) is connected to the bottom end of the spiral cooling channel (31).

6. A spindle cooling water jacket for a machine tool according to claim 1, characterized in that: Both the bottom end of the outlet channel (23) and the bottom end of the inlet channel (24) are provided with an inspection port (25) that communicates with the surface of the external cooling sleeve (2).

7. A spindle cooling water jacket for a machine tool according to claim 6, characterized in that: The surface of the external cooling sleeve (2) is provided with two sealing screws (26), and the two sealing screws (26) respectively block the inspection port (25) at the bottom of the outlet channel (23) and the inlet channel (24).

8. A spindle cooling water jacket for a machine tool according to claim 1, characterized in that: The bottom surface of the external cooling sleeve (2) is provided with multiple bolt holes.

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