Multi-way control valve

Abstract

The utility model provides a multi-way control valve, which relates to the technical field of machine tool equipment, and comprises a valve body and a rotating shaft, a rotating groove for rotating connection of the rotating shaft is arranged in the center of the valve body in a penetrating manner, a pressure relief channel is arranged beside the rotating groove, and a water outlet communicated with the rotating groove is arranged on the side wall of the valve body in a penetrating manner. The number of the water outlets is at least two; the rotating shaft is rotationally connected into the rotating groove, and one end of the rotating shaft penetrates through the rotating groove; a runner is formed in the center of the rotating shaft, one end of the runner is communicated with the water inlet, and the other end of the runner is communicated with the water outlet; one end of the pressure relief channel communicates with the rotating groove, the other end of the pressure relief channel penetrates through the bottom of the valve body, and the other end of the rotating shaft is in transmission connection with a motor. The more compact multi-path control function can be achieved, and the function that one inlet corresponds to multiple outlets to discharge water independently is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool equipment, in particular to a multi-way control valve. Background Art

[0002] The cooling system is an essential component for the reliable operation of machine tools. It is used to reduce the local temperature of the tool and the processed parts, increase the service life of the tool, and improve the surface quality and processing accuracy of the parts.

[0003] Most machine tools usually use an independent cooling system. When the machine tool is working, the cooling system is started and the coolant is supplied to the processing part at a certain flow rate and pressure by relying on the booster pump. Hydraulic solenoid valves or pilot cartridge valves are often used to control the opening and closing of multiple coolant outlets. Due to the multi-way setting, usually a single hydraulic solenoid valve or pilot cartridge valve corresponds to a single outlet. The more water outlets there are, the more hydraulic solenoid valves or pilot cartridge valves are required, and the larger the installation space required, which will affect the overall structure, especially the compactness of small CNC machine tools.

[0004] Therefore, the utility model proposes a multi-way control valve. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the present invention proposes a multi-way control valve, which can realize a more compact multi-way control function and achieve the function of one inlet corresponding to multiple outlets for separate water discharge.

[0006] The technical solution of the present utility model is achieved as follows:

[0007] A multi-way control valve comprises a valve body and a rotating shaft, wherein a rotating groove for rotationally connecting the rotating shaft is provided through the center of the valve body, a pressure relief channel is provided beside the rotating groove, a water outlet connected to the rotating groove is provided through the side wall of the valve body, and there are at least two water outlets; the rotating shaft is rotationally connected in the rotating groove and one end thereof passes through the rotating groove; a flow channel is opened in the center of the rotating shaft, one end of the flow channel is connected to the water inlet, and the other end is connected to the water outlet; one end of the pressure relief channel is connected to the rotating groove, and the other end passes through the bottom of the valve body, and the other end of the rotating shaft is connected to the motor transmission.

[0008] Preferably, the upper end and the lower end of the rotating groove are both provided with a skeleton oil seal for maintaining sealing and a deep groove ball bearing for supporting the rotating shaft from the inside to the outside.

[0009] Preferably, it also includes an end cover and a motor cover, one end of the valve body is fixedly connected to the end cover, and the other end is fixedly connected to the motor cover, and the motor is installed on the motor cover; a water inlet is provided through the center of the end cover, the rotating shaft passes through the rotating groove and is arranged in the water inlet, and a pressure relief hole connected to the pressure relief channel is provided on the side of the water inlet.

[0010] Preferably, the end cover and the motor cover are both fixedly connected to a bracket connected to the machine tool.

[0011] Preferably, the cross section of the valve body is annular, and at least two water outlets are evenly arranged on the annular outer circumference of the valve body.

[0012] Preferably, the flow channel includes an inner channel and an outer circular channel vertically arranged along the length direction of the rotating shaft, the outer circular channel is arranged perpendicular to the inner channel, one end of the inner channel is connected to the water outlet, and the other end is connected to the outer circular channel and connected to the water outlet through the outer circular channel.

[0013] Preferably, the motor is connected to an encoder for detecting the rotating shaft.

[0014] Preferably, the motor is a stepping reduction motor.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] With this solution, a rotating groove for rotationally connecting the rotating shaft is provided through the center of the valve body, and a water outlet connected to the rotating groove is provided through the side wall of the valve body, and there are at least two water outlets; the rotating shaft is rotatably connected in the rotating groove and one end thereof passes through the rotating groove; a flow channel is opened in the center of the rotating shaft, one end of the flow channel is connected to the water inlet, and the other end is connected to the water outlet. According to actual needs, the flow channel is independently connected to different water inlets by driving the rotating shaft through a motor. In addition, there is a gap between the rotating groove and the rotating shaft. When part of the water flows to this area, it can be drained through the pressure relief channel to ensure its service life, thereby realizing the function of one inlet corresponding to multiple outlets for separate water outlet. In addition, through the mutual cooperation of a few components as mentioned above, a more compact structure can be achieved, which is suitable for small CNC machine tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a multi-way control valve of the utility model;

[0019] Figure 2 This is a cross-sectional view of a multi-way control valve of the utility model;

[0020] Figure identification: 1-valve body; 11-rotating groove; 12-pressure relief channel; 13-water outlet; 2-rotating shaft; 21-inner channel; 22-outer circular channel; 3-end cover; 31-water inlet; 32-pressure relief hole; 4-motor cover; 5-stepping reduction motor; 6-skeleton oil seal; 7-deep groove ball bearing; 8-encoder; 9-bracket. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] This embodiment provides a multi-way control valve, such as Figure 1 and Figure 2As shown, it includes a valve body 1 and a rotating shaft 2, a rotating groove 11 for rotating connection of the rotating shaft 2 is penetrated through the center of the valve body 1, a pressure relief channel 12 is provided beside the rotating groove 11, and a water outlet 13 connected to the rotating groove 11 is penetrated on the side wall of the valve body 1, and there are at least two water outlets 13; the rotating shaft 2 is rotatably connected in the rotating groove 11 and one end thereof passes through the rotating groove 11; a flow channel is opened in the center of the rotating shaft 2, one end of the flow channel is communicated with the water inlet 31, and the other end is communicated with the water outlet 13; one end of the pressure relief channel 12 is communicated with the rotating groove 11, and the other end penetrates the bottom of the valve body 1, and the other end of the rotating shaft 2 is connected to the motor transmission.

[0025] In this embodiment, the upper end and the lower end of the rotating groove 11 are both provided with a skeleton oil seal 6 for maintaining sealing and a deep groove ball bearing 7 for supporting the rotating shaft 2 from the inside to the outside.

[0026] In this embodiment, an end cover 3 and a motor cover 4 are further included. One end of the valve body 1 is fixedly connected to the end cover 3, and the other end is fixedly connected to the motor cover 4. The motor is mounted on the motor cover 4. A water inlet 31 is provided through the center of the end cover 3. The rotating shaft 2 passes through the rotating groove 11 and is provided in the water inlet 31. A pressure relief hole 32 connected to the pressure relief channel 12 is provided on the side of the water inlet 31.

[0027] In this embodiment, the end cover 3 and the motor cover 4 are fixedly connected to the bracket 9 connected to the machine tool, so that the motor and the valve body are placed on the machine tool through the bracket 9. The above accessories are combined with each other to form a more compact control valve, realizing

[0028] In this embodiment, the cross section of the valve body 1 is annular, and at least two water outlets 13 are evenly arranged on the annular outer circumference of the valve body 1 .

[0029] In this embodiment, the flow channel includes an inner channel 21 and an outer circular channel 22 vertically arranged along the length direction of the rotating shaft 2. The outer circular channel 22 is arranged perpendicular to the inner channel 21. One end of the inner channel 21 is connected to the water outlet 13, and the other end is connected to the outer circular channel 22 and is connected to the water outlet 13 through the outer circular channel 22.

[0030] In this embodiment, the motor is connected to an encoder 8 for detecting the rotation shaft 2 .

[0031] In this embodiment, the motor is a stepping reduction motor 5 .

[0032] Working principle: A rotating groove 11 for rotationally connecting the rotating shaft 2 is provided through the center of the valve body 1, and a water outlet 13 connected to the rotating groove 11 is provided on the side wall of the valve body 1, and there are at least two water outlets 13; the rotating shaft 2 is rotatably connected in the rotating groove 11 and one end thereof passes through the rotating groove 11; a flow channel is opened in the center of the rotating shaft 2, one end of the flow channel is connected to the water inlet 31, and the other end is connected to the water outlet 13. According to actual needs, the flow channel is independently connected to different water inlets 31 by driving the rotating shaft through a motor. In addition, there is a gap between the rotating groove 11 and the rotating shaft. When part of the water flows to this area, it can be drained through the pressure relief channel 12 to ensure its service life, thereby realizing the function of separate water outlet of one inlet corresponding to multiple outlets. In addition, through the mutual cooperation of a few components as mentioned above, a more compact structure can be achieved, which is suitable for small CNC machine tools.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-way control valve, characterized in that: The invention comprises a valve body (1) and a rotating shaft (2); a rotating groove (11) for the rotating shaft (2) to be rotatably connected is provided through the center of the valve body (1); a pressure relief channel (12) is provided beside the rotating groove (11); a water outlet (13) communicating with the rotating groove (11) is provided through the side wall of the valve body (1); the water outlet (13) is provided at least two; the rotating shaft (2) is rotatably connected in the rotating groove (11) and one end thereof passes through the rotating groove (11); a flow channel is provided in the center of the rotating shaft (2), one end of the flow channel is communicated with the water inlet (31), and the other end is communicated with the water outlet (13); one end of the pressure relief channel (12) is communicated with the rotating groove (11), and the other end passes through the bottom of the valve body (1); the other end of the rotating shaft (2) is connected to the motor transmission.

2. The multi-way control valve according to claim 1, characterized in that: The upper end and the lower end of the rotating groove (11) are both provided with a skeleton oil seal (6) for maintaining sealing and a deep groove ball bearing (7) for supporting the rotating shaft (2) from the inside out.

3. The multi-way control valve according to claim 1, characterized in that: The valve body (1) further comprises an end cover (3) and a motor cover (4); one end of the valve body (1) is fixedly connected to the end cover (3), and the other end is fixedly connected to the motor cover (4); the motor is mounted on the motor cover (4); a water inlet (31) is provided through the center of the end cover (3); the rotating shaft (2) passes through the rotating groove (11) and is provided in the water inlet (31); a pressure relief hole (32) communicating with the pressure relief channel (12) is provided through the side of the water inlet (31).

4. The multi-way control valve according to claim 3, characterized in that: The end cover (3) and the motor cover (4) are both fixedly connected to a bracket (9) connected to the machine tool.

5. The multi-way control valve according to claim 1, characterized in that: The cross section of the valve body (1) is annular, and at least two water outlets (13) are evenly distributed on the annular outer circumference of the valve body (1).

6. The multi-way control valve according to claim 1, characterized in that: The flow channel comprises an inner channel (21) and an outer circular channel (22) vertically arranged along the length direction of the rotating shaft (2); the outer circular channel (22) is arranged perpendicular to the inner channel (21); one end of the inner channel (21) is connected to the water outlet (13), and the other end is connected to the outer circular channel (22) and is connected to the water outlet (13) through the outer circular channel (22).

7. The multi-way control valve according to claim 1, characterized in that: The motor is connected to an encoder (8) for detecting the rotation shaft (2).

8. The multi-way control valve according to claim 1 or 7, characterized in that: The motor is a stepping reduction motor (5).

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