Air-cooling and liquid-cooling mixed spray head and vertical machining center thereof

Abstract

The utility model relates to the technical field of machining, and particularly discloses an air-cooling and liquid-cooling mixed spray head and a vertical machining center thereof. The three-way pipe is communicated and fixedly connected with a corrugated pipe; the lower end of the corrugated pipe is communicated and fixedly connected with a tail end spray head; a central pipe is fixedly connected to the interior of the tail end spray head; the central pipe is externally connected with a cooling air source, one end of the three-way pipe is connected with a cooling liquid conveying pipeline externally connected with the vertical machining center, then machining is started, a cooling liquid system of the vertical machining center is started, and sprayed cooling liquid is evenly sprayed out of the diffusion holes along the three-way pipe, the corrugated pipe and the tail end spray head to cool a machined part. And then the cooling air source sprays out cold air with pressure along the center pipe and the air spraying holes, so that cooling liquid is cooled in the moving process, meanwhile, contact heat dissipation is conducted on the machined part in the middle position where the cooling liquid is sprayed out, the contact area between the cold air and the machined part is larger through the cold air, and the cooling effect is better.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to an air-cooled and liquid-cooled hybrid nozzle and its vertical machining center. Background Technology

[0002] A vertical machining center is a CNC machining equipment in which the spindle axis is perpendicular to the worktable. It mainly consists of a bed, column, worktable, spindle box, tool magazine and CNC system. Vertical machining centers are particularly suitable for machining complex parts such as plates, discs, molds and small shells. They have advantages such as convenient clamping, intuitive operation and easy program debugging.

[0003] Chinese utility model patent CN214922761U, published on November 30, 2021, discloses a liquid-cooled chip removal nozzle device for high-speed drill bits, relating to the field of drilling technology. It addresses the problem of insufficient cooling during prolonged operation of existing high-speed drill bits, which can shorten their lifespan and reduce working accuracy. The device comprises an operating table at the upper end of a base, a motor bracket at the rear end of the operating table, a lathe motor mounting box at the upper end of the motor bracket, a hydraulic drill bit telescopic column at the lower end of the lathe motor mounting box, a drill bit rod motor at the lower end of the hydraulic drill bit telescopic column, a drill bit at the lower output end of the drill bit rod motor, liquid-cooled chip removal devices on both sides of the drill bit rod motor, and a water tank and an air pump at the rear end of the motor bracket.

[0004] However, the above-mentioned disclosed solutions have the following shortcomings: the existing liquid cooling nozzles dissipate heat by increasing the flow rate of the liquid with high-pressure air, so that it can be quickly sprayed onto the surface of the workpiece for heat exchange. However, the high-speed moving coolant cannot remove more heat because the contact time with the workpiece is too short, which leads to the waste of coolant. Utility Model Content

[0005] The purpose of this invention is to solve the technical problem of existing liquid-cooled nozzles, which use high-pressure air to increase the flow rate of the liquid and quickly spray it onto the surface of the workpiece for heat exchange. However, the high-speed moving coolant has too short a contact time with the workpiece to remove more heat, resulting in a waste of coolant. This invention provides an air-cooled and liquid-cooled hybrid nozzle and its vertical machining center.

[0006] To achieve the above objectives, the present invention adopts the following technical solution;

[0007] The present invention relates to an air-cooled and liquid-cooled hybrid nozzle and its vertical machining center, comprising a three-way pipe; a corrugated pipe is connected and fixed to the three-way pipe; an end nozzle is connected and fixed to the lower end of the corrugated pipe; a central pipe is fixed to the inside of the end nozzle; an airflow hose is connected and fixed to the central pipe; multiple air jet holes are opened on the end nozzle connected to the central pipe; and multiple diffuser holes are opened on the end nozzle connected to the corrugated pipe.

[0008] Furthermore, the bellows is made of stainless steel.

[0009] A vertical machining center, comprising the air-cooled and liquid-cooled hybrid nozzle described in any one of the above-mentioned embodiments.

[0010] This utility model provides an air-cooled and liquid-cooled hybrid nozzle and its vertical machining center, which have the following features:

[0011] Beneficial effects:

[0012] 1. This utility model fixes a three-way pipe in a position on a vertical machining center that does not affect the movement of the spindle. Then, the corrugated pipe is bent so that the end nozzle is aligned with the workpiece. Then, a cooling air source is connected to the central pipe, and one end of the three-way pipe is connected to the coolant delivery pipe of the vertical machining center. When machining begins, the coolant system of the vertical machining center is activated, and coolant is sprayed out along the three-way pipe, the corrugated pipe, and the end nozzle. Then, it is evenly sprayed out from the diffuser hole to cool the workpiece. Then, the cooling air source sprays pressurized cold air along the central pipe and the air jet hole, thereby achieving cooling of the coolant during movement. At the same time, the coolant sprayed in the middle position contacts the workpiece to dissipate heat, thereby quickly removing the heat from the workpiece. The cold air increases the contact area with the workpiece, thus removing more heat and making the cooling effect better.

[0013] 2. This utility model enables the vertical machining center to achieve two cooling methods, namely liquid cooling and air cooling, by allowing the connection of an external pressurized cooling system. When switching cooling methods, there is no need to change the position and angle of the end nozzle, making the switching convenient. It also allows the two cooling methods to be used to cool the workpiece simultaneously. Attached Figure Description

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings;

[0015] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0017] Figure 3 This is a front cross-sectional view of the present invention.

[0018] The following are the labels in the diagram: 1. Tee; 2. Flange; 3. Bellows; 4. End nozzle; 5. Hexagonal; 6. Center pipe; 7. Airflow hose; 8. Jet nozzle; 9. Diffuser. Detailed Implementation

[0019] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0020] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0022] Please see Figure 1-3 As shown, a hybrid air-cooled and liquid-cooled nozzle and its vertical machining center include a three-way pipe 1; a bellows pipe 3 is connected and fixed to the three-way pipe 1; an end nozzle 4 is connected and fixed to the lower end of the bellows pipe 3; a central pipe 6 is fixed to the inside of the end nozzle 4; an airflow hose 7 is connected and fixed to the central pipe 6; multiple air jet holes 8 are opened on the end nozzle 4 connected to the central pipe 6; multiple diffuser holes 9 are opened on the end nozzle 4 connected to the bellows pipe 3. By fixing the three-way pipe 1 in a position on the vertical machining center that does not affect the movement of the spindle, then bending the bellows pipe 3 to align the end nozzle 4 with the workpiece, and then connecting the central pipe 6 to a cooling air source, one end of the three-way pipe 1 is connected to... Connect the coolant supply pipeline to the external vertical machining center. When machining begins, the coolant system of the vertical machining center starts, spraying coolant along the tee pipe 1, corrugated pipe 3, and end nozzle 4, and then evenly spraying it out from the diffuser hole 9 to cool the workpiece. Then, the cooling air source sprays pressurized cold air along the central pipe 6 and jet hole 8, thereby cooling the coolant during movement. At the same time, the air source is located in the middle of the sprayed coolant to contact the workpiece for heat dissipation, thus quickly carrying away the heat from the workpiece. The cold air increases the contact area with the workpiece, thereby carrying away more heat and making the cooling effect better.

[0023] The bellows 3 is made of stainless steel, which allows it to withstand the overhead pressure of the coolant without affecting the composition of the coolant, enabling long-term stable use and a long service life.

[0024] The upper end of the airflow hose 7 passes through the tee pipe 1, which allows for the connection of an external pressurized cooling system. This enables the vertical machining center to achieve two cooling methods: liquid cooling and air cooling. When switching cooling methods, there is no need to change the position and angle of the end nozzle 4, making the switching convenient. Both cooling methods can also be used to cool the workpiece simultaneously.

[0025] The outer surface of the end nozzle 4 is fixed with a hexagonal corner 5. A hexagonal wrench can be used to rotate the hexagonal corner 5 to connect and fix it to the bellows 3, making disassembly more convenient.

[0026] One end of the tee pipe 1 is fixedly connected to a flange plate 2, so that when an external coolant delivery pipeline is connected, it can be connected to the cooling system of the vertical machining center. The coolant is delivered under pressure into the tee pipe 1, and then sprayed onto the workpiece through the corrugated pipe 3, the end nozzle 4 and the diffuser hole 9. The coolant takes away the heat by contacting the workpiece. Combined with the low temperature air ejected from the jet hole 8 located in the middle, the heat on the workpiece can be quickly removed.

[0027] A vertical machining center, comprising the air-cooled and liquid-cooled hybrid nozzle described in any one of the above-mentioned embodiments.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A gas-cooled and liquid-cooled mixing nozzle, characterized in that; It includes a three-way pipe (1); the three-way pipe (1) is connected to and fixedly connected to a corrugated pipe (3); the lower end of the corrugated pipe (3) is connected to and fixedly connected to an end nozzle (4); the interior of the end nozzle (4) is fixedly connected to a central pipe (6); the central pipe (6) is connected to and fixedly connected to an airflow hose (7); the end nozzle (4) is connected to the central pipe (6) and has multiple air jet holes (8); the end nozzle (4) is connected to the corrugated pipe (3) and has multiple diffuser holes (9).

2. The air-cooled and liquid-cooled mixing nozzle according to claim 1, characterized in that: The corrugated pipe (3) is made of stainless steel.

3. The air-cooled and liquid-cooled mixing nozzle according to claim 1, characterized in that: The upper end of the airflow hose (7) passes through the tee pipe (1).

4. The air-cooled and liquid-cooled mixing nozzle according to claim 1, characterized in that: The outer surface of the terminal nozzle (4) is fixed with a hexagonal corner (5).

5. The air-cooled and liquid-cooled mixing nozzle according to claim 1, characterized in that: A flange plate (2) is fixedly connected to one end of the tee pipe (1).

6. A vertical machining center, characterized in that: Includes the air-cooled and liquid-cooled hybrid nozzle as described in any one of claims 1 to 5.

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