Machine tool spindle heat dissipation device

Abstract

The utility model discloses a machine tool spindle heat dissipation device which comprises a bearing seat and a cooling part, the bearing seat is used for installing a bearing, the bearing seat is provided with an installation groove, at least one side of the installation groove is arranged in a penetrating mode, and the cooling part is detachably installed in the installation groove and can be taken out from at least one side of the installation groove. The cooling part is provided with a cooling groove, the surface, provided with the cooling groove, of the cooling part is attached to the inner wall of the mounting groove, so that a cold area channel is defined between the inner wall of the mounting groove and the inner wall of the cooling groove, the cooling part is provided with an inlet hole and an outlet hole which are communicated with the cooling groove, or the inlet hole and the outlet hole are communicated with the cooling groove. And the bearing seat is provided with an inlet hole and an outlet hole which are communicated with the cooling groove. According to the machine tool spindle heat dissipation device, the cooling channel can be machined and cleaned more conveniently, and practicability is better.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, in particular to a heat dissipation device for a main shaft of a machine tool. Background Art

[0002] Machine tools are generally provided with a spindle, such as a tool spindle for installing tools such as drills, grinding wheels or milling cutters, and a workpiece spindle for installing workpieces. The spindle is generally installed on a bearing, the bearing is installed on a bearing seat, and the bearing seat is installed on the spindle box. During the high-speed operation of the spindle, a large amount of heat will be generated at the connection between the spindle and the bearing, which will cause the temperature of the spindle and the bearing to be too high, which will not only reduce the processing accuracy, but also easily damage the spindle and the bearing. In the prior art, a cooling channel is generally processed in the bearing seat, and the coolant or cold air passes through the cooling channel for cooling. However, processing the cooling channel in the bearing seat is not only troublesome to process, but also very troublesome to operate when the cooling channel needs to be cleaned, and the practicality is poor. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a machine tool spindle heat dissipation device, which is more convenient for processing and cleaning cooling channels and has better practicality.

[0004] According to the embodiment of the utility model, the machine tool spindle heat dissipation device includes a bearing seat and a cooling part, the bearing seat is used to install the bearing, the bearing seat is provided with a mounting groove, at least one side of the mounting groove is penetrated, the cooling part is detachably installed in the mounting groove and can be taken out from at least one side of the mounting groove, the cooling part is provided with a cooling groove, and the surface of the cooling part provided with the cooling groove fits the inner wall of the mounting groove so that the inner wall of the mounting groove and the inner wall of the cooling groove enclose a cold zone channel, wherein the cooling part is provided with an inlet hole and an outlet hole connected to the cooling groove, or the bearing seat is provided with an inlet hole and an outlet hole connected to the cooling groove.

[0005] The machine tool spindle heat dissipation device according to the embodiment of the utility model has at least the following beneficial effects:

[0006] In the utility model, the bearing seat can be installed on the spindle box, the bearing seat is used to install the bearing, and the bearing is used to install the spindle. During the high-speed operation of the spindle, a large amount of heat will be generated at the connection position between the spindle and the bearing, and the heat will be transferred to the bearing seat. Cooling media such as coolant or cold air can enter the cooling channel through the inlet hole and finally be discharged through the outlet hole. During the flow of the cooling medium, the heat on the bearing seat can be taken away, thereby dissipating heat. According to the machine tool spindle heat dissipation device of the utility model embodiment, since the cold zone channel is formed by the inner wall of the cooling groove on the cooling part and the inner wall of the mounting groove on the bearing seat, it is only necessary to machine an open mounting groove on the bearing seat and an open cooling groove on the cooling part, and there is no need to machine a cooling channel in the bearing seat, which makes the processing more convenient, and when cleaning is required, the cooling part can be removed and the open cooling groove can be cleaned, which makes cleaning more convenient and more practical.

[0007] According to some embodiments of the present invention, the mounting groove extends along the circumference of the bearing seat, the cooling portion is configured as an annular structure adapted to the mounting groove, and the cooling groove extends along the circumference of the cooling portion.

[0008] According to some embodiments of the present invention, the inner wall and / or the outer wall of the cooling portion is provided with a plurality of the cooling grooves, and the plurality of the cooling grooves are arranged along the axial direction of the cooling portion.

[0009] According to some embodiments of the present invention, the inlet hole and the outlet hole are respectively connected to the two outermost cooling grooves, and the cooling portion is provided with a connecting hole between two adjacent cooling grooves.

[0010] According to some embodiments of the present invention, the cooling groove is provided with a partition portion, and two adjacent connecting holes are respectively located on opposite sides of the partition portion in the cooling groove therebetween.

[0011] According to some embodiments of the present invention, the connecting hole adjacent to the inlet hole and the inlet hole are respectively located on opposite sides of the partition portion in the cooling groove therebetween.

[0012] According to some embodiments of the present invention, the connecting hole adjacent to the outlet hole and the outlet hole are respectively located on opposite sides of the partition portion in the cooling groove therebetween.

[0013] According to some embodiments of the present invention, two adjacent communicating holes are respectively located at the bottom and top of the cooling groove therebetween.

[0014] According to some embodiments of the present invention, the connecting hole adjacent to the inlet hole is respectively located at the bottom and top of the cooling groove therebetween with the inlet hole, and the connecting hole adjacent to the outlet hole is respectively located at the bottom and top of the cooling groove therebetween with the outlet hole.

[0015] According to some embodiments of the present invention, the cooling portion is provided with an annular sealing groove between two adjacent cooling grooves, the annular sealing groove extends along the circumference of the cooling portion, and an annular sealing ring is installed in the annular sealing groove.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 It is a structural schematic diagram of the machine tool spindle heat dissipation device of the utility model;

[0019] Figure 2 for Figure 1 A cross-sectional view in one direction;

[0020] Figure 3 for Figure 1 A cross-sectional view from another direction;

[0021] Figure 4 It is a schematic diagram of the setting of the partition part;

[0022] Figure 5 This is a schematic diagram of the inlet hole and the outlet hole being arranged on the bearing seat.

[0023] Figure Number:

[0024] Bearing seat 100; mounting groove 101;

[0025] Cooling part 200; cooling groove 201; inlet hole 202; outlet hole 203; connecting hole 204; partition part 205; annular sealing ring 206;

[0026] Bearing 300;

[0027] Spindle 400. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element 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 invention.

[0030] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] Reference below Figures 1 to 5 A machine tool spindle heat dissipation device according to an embodiment of the utility model is described.

[0033] like Figures 1 to 5 As shown, the machine tool spindle heat dissipation device according to the embodiment of the utility model includes a bearing seat 100 and a cooling part 200.

[0034] For example, the bearing seat 100 can be arranged on the spindle box, the bearing seat 100 is used to install the bearing 300, the bearing 300 is used to install the spindle 400, the bearing seat 100 is provided with a mounting groove 101, at least one side of the mounting groove 101 is penetrated to form an opening, for example, the mounting groove 101 can be penetrated at the end face of one end of the bearing seat 100 to form an opening.

[0035] The cooling part 200 can be detachably installed in the mounting groove 101. For example, the cooling part 200 can be installed in the mounting groove 101 by fasteners, or can be clamped in the mounting groove 101. The cooling part 200 can be taken out from the opening position on at least one side of the mounting groove 101. The cooling part 200 is provided with a cooling groove 201. The surface of the cooling part 200 provided with the cooling groove 201 fits the inner wall of the mounting groove 101 so that the inner wall of the mounting groove 101 and the inner wall of the cooling groove 201 enclose a cold zone channel, wherein the cooling part 200 is provided with an inlet hole 202 and an outlet hole 203 connected to the cooling groove 201. Of course, the bearing seat 100 can also be provided with an inlet hole 202 and an outlet hole 203 connected to the cooling groove 201.

[0036] In the present invention, the bearing seat 100 can be installed on the spindle box, the bearing seat 100 is used to install the bearing 300, and the bearing 300 is used to install the spindle 400. During the high-speed operation of the spindle 400, a large amount of heat will be generated at the connection position between the spindle 400 and the bearing 300, and the heat will be transferred to the bearing seat 100. Cooling medium such as coolant or cold air can enter the cooling channel through the inlet hole 202 and be discharged through the outlet hole 203, thereby taking away the heat on the bearing seat 100, thereby dissipating heat. According to the machine tool spindle heat dissipation device of the embodiment of the utility model, since the cold zone channel is formed by the inner wall of the cooling groove 201 on the cooling part 200 and the inner wall of the mounting groove 101 on the bearing seat 100, it is only necessary to process the opening mounting groove 101 on the bearing seat 100 and the opening cooling groove 201 on the cooling part 200, and there is no need to process the cooling channel in the bearing seat 100, which makes the processing more convenient, and when cleaning is needed, the cooling part 200 can be removed and the opening cooling groove 201 can be cleaned, which makes cleaning more convenient and more practical.

[0037] It should be noted that, in addition to the surface of the cooling unit 200 with the cooling groove 201 being fitted to the inner wall of the mounting groove 101, other surfaces of the cooling unit 200 can also be fitted to the inner wall of the mounting groove 101 to make the cooling unit 200 more firmly installed and better sealed.

[0038] In some embodiments of the present invention, Figure 3As shown, the mounting groove 101 extends along the circumference of the bearing seat 100, the cooling portion 200 is configured as an annular structure adapted to the mounting groove 101, and the cooling groove 201 extends along the circumference of the cooling portion 200. In this embodiment, the mounting groove 101 extends along the circumference of the bearing seat 100 to form an annular groove structure, the cooling portion 200 is configured as an annular structure adapted to the mounting groove 101, and the cooling groove 201 extends along the circumference of the cooling portion 200 to form an annular groove structure. In this way, the inner wall of the mounting groove 101 and the inner wall of the cooling groove 201 can enclose a ring-shaped cold zone channel, and then the cooling and heat dissipation can be performed in various directions in the circumferential direction of the main shaft 400, and the heat dissipation is more comprehensive and uniform, and the heat dissipation effect is better.

[0039] It should be noted that, in some other embodiments of the present invention, the mounting groove 101, the cooling portion 200 and the cooling groove 201 may also be in other suitable shapes, which will not be described in detail herein.

[0040] In some embodiments of the present invention, Figure 2 , Figure 4 and Figure 5 As shown, the inner wall and / or outer wall of the cooling part 200 are provided with a plurality of cooling grooves 201, and the plurality of cooling grooves 201 are arranged along the axial direction of the cooling part 200. The inner wall of the cooling part 200 is the side wall of the cooling part 200 close to the main shaft 400, and the outer wall of the cooling part 200 is the side wall of the cooling part 200 away from the main shaft 400. In this embodiment, the inner wall and / or outer wall of the cooling part 200 are provided with a plurality of cooling grooves 201 arranged along the axial direction of the cooling part 200, so that a plurality of cold zone channels located inside or outside the cooling part 200 can be formed, and the plurality of cold zone channels are arranged along the axial direction of the cooling part 200, so that cooling and heat dissipation can be performed at a plurality of positions in the axial direction of the main shaft 400, and the heat dissipation is more comprehensive and uniform, and the heat dissipation effect is better.

[0041] It should be noted that in some other embodiments of the present invention, only one cooling groove 201 may be provided, which will not be described in detail herein.

[0042] In some embodiments of the present invention, Figure 1 , Figure 4 and Figure 5 As shown, the inlet hole 202 and the outlet hole 203 are connected to the two outermost cooling grooves 201 respectively, and the cooling part 200 is provided with a connecting hole 204 between two adjacent cooling grooves 201. After the cooling medium such as coolant or cold air enters one of the outermost cooling channels through the inlet hole 202, it can enter other cooling channels in turn through the connecting hole 204 and finally be discharged from the outlet hole 203, without the need to set multiple inlet holes 202 and outlet holes 203, the structure is simpler, the processing is more convenient, and the sealing performance is better.

[0043] Of course, in some other embodiments of the present invention, each cooling slot 201 may be provided with an inlet hole 202 and an outlet hole 203 .

[0044] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the cooling slot 201 is provided with a partition 205, and two adjacent connecting holes 204 are respectively located on opposite sides of the partition 205 in the cooling slot 201 between the two. That is, the two adjacent connecting holes 204 are close to the partition 205 in the cooling slot 201 between the two, and are located on opposite sides of the partition 205 in the cooling slot 201 between the two. Due to the provision of the partition 205, when a cooling medium such as a coolant or cold air enters the corresponding cooling channel through one of the connecting holes 204, it needs to flow along the cooling channel for about a circle before it can flow out from the other connecting hole 204, and cannot flow out directly from the other connecting hole 204, so that the heat dissipation is more comprehensive and uniform, and the heat dissipation effect is better.

[0045] In some embodiments of the present invention, Figure 4 As shown, the connecting hole 204 adjacent to the inlet hole 202 and the inlet hole 202 are respectively located on opposite sides of the partition 205 in the cooling groove 201 between the two. That is, the connecting hole 204 adjacent to the inlet hole 202 and the inlet hole 202 are close to the partition 205 in the cooling groove 201 between the two, and are located on opposite sides of the partition 205 in the cooling groove 201 between the two. Due to the provision of the partition 205, when a cooling medium such as a coolant or cold air enters the corresponding cooling channel through the inlet hole 202, it needs to flow along the cooling channel for approximately one circle before it can flow out from the connecting hole 204 adjacent to the inlet hole 202, and cannot flow out directly from the adjacent connecting hole 204, so that the heat dissipation is more comprehensive and uniform, and the heat dissipation effect is better.

[0046] In some embodiments of the utility model, the connecting hole 204 adjacent to the outlet hole 203 and the outlet hole 203 are respectively located on opposite sides of the partition 205 in the cooling groove 201 between the two. That is, the connecting hole 204 adjacent to the outlet hole 203 and the outlet hole 203 are close to the partition 205 in the cooling groove 201 between the two, and are located on opposite sides of the partition 205 in the cooling groove 201 between the two. Due to the provision of the partition 205, when a cooling medium such as a coolant or cold air enters the corresponding cooling channel through the connecting hole 204 adjacent to the outlet hole 203, it needs to flow along the cooling channel for approximately one circle before it can flow out of the outlet hole 203, and cannot flow out directly from the outlet hole 203, so that the heat dissipation is more comprehensive and uniform, and the heat dissipation effect is better.

[0047] In some embodiments of the utility model, two adjacent connecting holes 204 are respectively located at the bottom and top of the cooling groove 201 between them. In addition to setting the partition 205, one of the two adjacent connecting holes 204 can be located at the bottom of the cooling groove 201 between them, and the other connecting hole 204 can be located at the top of the cooling groove 201 between them. In this way, when the cooling medium such as coolant or cold air enters the corresponding cooling channel through one of the connecting holes 204, it needs to flow through half of the cooling channel from both sides of the connecting hole 204 and then flow out through the other connecting hole 204, so that the heat dissipation is more comprehensive and uniform, and the heat dissipation effect is better.

[0048] It should be noted that the two adjacent connecting holes 204, one located at the bottom end of the cooling groove 201 and the other located at the top end of the cooling groove 201, can enable cooling media such as coolant or cold air to flow through both sides of the cooling channel instead of only flowing through one side of the cooling channel, so as to improve the heat dissipation effect.

[0049] In some embodiments of the utility model, the connecting hole 204 adjacent to the inlet hole 202 and the inlet hole 202 are respectively located at the bottom and top of the cooling groove 201 between the two. In addition to setting the partition 205, it is also possible that one of the connecting hole 204 adjacent to the inlet hole 202 and the inlet hole 202 is located at the bottom of the cooling groove 201 between the two, and the other is located at the top of the cooling groove 201 between the two. In this way, when the cooling medium such as coolant or cold air enters the corresponding cooling channel through the inlet hole 202, it needs to flow through half of the cooling channel from both sides of the inlet hole 202 and then flow out through the connecting hole 204 adjacent to the inlet hole 202, so that the heat dissipation is more comprehensive and uniform, and the heat dissipation effect is better.

[0050] It should be noted that the connecting hole 204 adjacent to the inlet hole 202 and the inlet hole 202, one is located at the bottom end of the cooling groove 201, and the other is located at the top end of the cooling groove 201, which can enable cooling media such as coolant or cold air to flow through both sides of the cooling channel instead of only flowing through one side of the cooling channel, so as to improve the heat dissipation effect.

[0051] In some embodiments of the utility model, the connecting hole 204 adjacent to the outlet hole 203 and the outlet hole 203 are respectively located at the bottom and top of the cooling groove 201 between the two. In addition to setting the partition 205, it is also possible that one of the connecting hole 204 adjacent to the outlet hole 203 and the outlet hole 203 is located at the bottom of the cooling groove 201 between the two, and the other is located at the top of the cooling groove 201 between the two. In this way, when a cooling medium such as a coolant or cold air enters the corresponding cooling channel through the connecting hole 204 adjacent to the outlet hole 203, it needs to flow through half of the cooling channel from both sides of the connecting hole 204 and then flow out through the outlet hole 203, so that the heat dissipation is more comprehensive and uniform, and the heat dissipation effect is better.

[0052] It should be noted that the connecting hole 204 adjacent to the outlet hole 203 and the outlet hole 203, one is located at the bottom end of the cooling groove 201, and the other is located at the top end of the cooling groove 201, which can enable cooling media such as coolant or cold air to flow through both sides of the cooling channel instead of only flowing through one side of the cooling channel, so as to improve the heat dissipation effect.

[0053] In some embodiments of the present invention, Figure 2 and Figure 5 As shown, the cooling part 200 is provided with an annular sealing groove between two adjacent cooling grooves 201, the annular sealing groove extends along the circumference of the cooling part 200, and an annular sealing ring 206 is installed in the annular sealing groove. Specifically, the annular sealing groove is provided on the side wall of the cooling part 200 provided with the cooling groove 201, and the annular sealing ring 206 is installed in the annular sealing groove, and the annular sealing ring 206 abuts against the inner wall of the mounting groove 101. In this embodiment, the annular sealing ring 206 is provided to improve the sealing performance, reduce the cooling medium such as coolant or cold air passing through the gap between the surface of the cooling part 200 and the surface of the mounting groove 101, and reduce the heat dissipation effect.

[0054] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A machine tool spindle heat dissipation device, characterized in that: include: A bearing seat, used for mounting a bearing, wherein the bearing seat is provided with a mounting groove, and at least one side of the mounting groove is penetrated; A cooling part is detachably installed in the mounting groove and can be taken out from at least one side of the mounting groove, the cooling part is provided with a cooling groove, and a surface of the cooling part provided with the cooling groove is in contact with an inner wall of the mounting groove, so that a cold zone channel is enclosed between the inner wall of the mounting groove and the inner wall of the cooling groove; Wherein, the cooling portion is provided with an inlet hole and an outlet hole connected to the cooling groove, or the bearing seat is provided with an inlet hole and an outlet hole connected to the cooling groove.

2. The machine tool spindle heat dissipation device according to claim 1, characterized in that: The mounting groove extends along the circumference of the bearing seat, the cooling portion is configured as an annular structure adapted to the mounting groove, and the cooling groove extends along the circumference of the cooling portion.

3. The machine tool spindle heat dissipation device according to claim 2, characterized in that: The inner side wall and / or the outer side wall of the cooling portion is provided with a plurality of the cooling grooves, and the plurality of the cooling grooves are arranged along the axial direction of the cooling portion.

4. The machine tool spindle heat dissipation device according to claim 3, characterized in that: The inlet hole and the outlet hole are respectively connected to the two outermost cooling grooves, and the cooling part is provided with a connecting hole between two adjacent cooling grooves.

5. The machine tool spindle heat dissipation device according to claim 4, characterized in that: The cooling groove is provided with a partition portion, and two adjacent communicating holes are respectively located at opposite sides of the partition portion in the cooling groove therebetween.

6. The machine tool spindle heat dissipation device according to claim 5, characterized in that: The communicating hole adjacent to the inlet hole and the inlet hole are respectively located on opposite sides of the partition portion in the cooling groove therebetween.

7. The machine tool spindle heat dissipation device according to claim 5, characterized in that: The communicating hole adjacent to the outlet hole and the outlet hole are respectively located on opposite sides of the partition portion in the cooling groove therebetween.

8. The machine tool spindle heat dissipation device according to claim 4, characterized in that: Two adjacent communicating holes are respectively located at the bottom and top of the cooling groove therebetween.

9. The machine tool spindle heat dissipation device according to claim 4, characterized in that: The connecting hole adjacent to the inlet hole and the inlet hole are respectively located at the bottom and top of the cooling groove therebetween, and the connecting hole adjacent to the outlet hole and the outlet hole are respectively located at the bottom and top of the cooling groove therebetween.

10. The machine tool spindle heat dissipation device according to claim 3, characterized in that: The cooling portion is provided with an annular sealing groove between two adjacent cooling grooves. The annular sealing groove extends along the circumference of the cooling portion. An annular sealing ring is installed in the annular sealing groove.

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