A one-way valve body for internal cooling of the spindle tool of a machining center

Abstract

The present invention discloses a one-way valve body for internal cooling of a spindle tool in a machining center, and relates to the technical field of spindle accessories. The valve body comprises a valve housing; a longitudinally parallel water inlet channel and a drainage channel are provided in the middle of the valve body housing, as well as an air inlet channel perpendicular to and connected to the water inlet channel and the drainage channel; a joint access hole perpendicular to and connected to the air inlet channel is provided at one end of the valve body housing; one end of the steering channel is connected to the air inlet channel, and the other end is connected to the cylinder access port; a water inlet square cavity is provided at the intersection of the water inlet channel and the air inlet channel; a square air inlet cavity is provided at the intersection of the drainage channel and the air inlet channel; a first sealing plate is hingedly connected to the water inlet square cavity; and a second sealing plate is hingedly connected to the air inlet square cavity. The present invention prevents water from directly entering the third section of the air inlet channel by providing devices such as a drainage channel, a water collecting bottle, a first sealing plate, and a second sealing plate, thereby avoiding coolant from flowing in through the air pipe, which could cause damage to the solenoid valve, leakage, and other safety accidents.

Description

Technical Field

[0001] The invention relates to the technical field of spindle accessories, in particular to a one-way valve body for internal cooling of a spindle tool in a machining center. Background Art

[0002] There are two ways to cool the machining center spindle tool using coolant: internal cooling and external cooling. In the internal cooling mode, a coolant channel is installed in the machining center spindle, with one end connected to the tool and the other end connected to the cooling device. In the existing technology, coolant is often pumped into the adapter device at high pressure by a high-pressure pump, then flows through the spindle coolant channel and finally reaches the tool. When the high-pressure pump stops, the coolant supply cannot be stopped immediately, and coolant will remain in the spindle coolant channel. In order to remove the coolant residue in the coolant channel in the spindle, an air circuit is usually added for purge. For example, the Chinese patent publication number CN213017888U discloses a one-way valve body for internal cooling of a spindle tool in a machining center. The middle part of the valve body shell is provided with a parallel water inlet channel and an air inlet channel, as well as a mixing channel perpendicular to and connected to the water inlet channel and the air inlet channel; a connector access hole perpendicular to and connected to the mixing channel is provided at one end of the valve body; a water inlet one-way valve is provided in the water inlet channel; an air inlet one-way valve is provided in the air inlet channel; after the high-pressure pump stops working, the coolant is quickly blocked from entering the spindle, and by opening the air channel, dry air is blown into the spindle coolant channel to take away the residual coolant hanging on the inner wall of the spindle coolant channel. However, since the water inlet channel and the air intake channel are connected through the mixing channel, when the high-pressure pump is working, when the coolant enters from the water inlet channel, some of the coolant will also enter the air intake channel through the mixing channel and accumulate on the air intake check valve, which can easily cause corrosion of the air intake check valve. It is difficult to identify when the air intake check valve fails, and when the air intake check valve fails, coolant will flow into the air pipe, causing safety accidents such as damage to the solenoid valve and leakage. Summary of the Invention

[0003] The main purpose of the present invention is to provide a one-way valve body for internal cooling of a spindle tool in a machining center to solve the above-mentioned problem.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a one-way valve body for internal cooling of a spindle tool of a machining center, comprising a valve body shell; a longitudinally parallel water inlet channel and a drainage channel are provided in the middle of the valve body shell, as well as an air inlet channel which is perpendicular to and connects the water inlet channel and the drainage channel; a joint access hole which is perpendicular to and connects the air inlet channel is provided at one end of the valve body shell; a steering channel is provided in the articulated joint, and the articulated joint is inserted into the joint access hole and the cylinder access port in turn to connect the valve body shell and the cylinder body, one end of the steering channel is connected to the air inlet channel, and the other end is connected to the cylinder access port; a water inlet square cavity is provided at the intersection of the water inlet channel and the air inlet channel; an air inlet square cavity is provided at the intersection of the drainage channel and the air inlet channel; the water inlet square cavity and the air inlet square cavity top The first section of the air inlet channel is connected to the steering channel of the hinged joint; a first sealing plate is hinged in the water inlet square cavity; the hinge axis of the first sealing plate is located below the air inlet channel and on the side of the water inlet channel close to the second section; when the coolant enters from the water inlet channel, the water flow pushes the first sealing plate to flip upwards, closing the second section of the air inlet channel; when the coolant stops and air needs to be inhaled, the air flow pushes the first sealing plate to flip downwards, closing the water inlet channel; a second sealing plate is hinged on the side of the air inlet square cavity close to the third section of the air inlet channel; the hinge axis of the second sealing plate is located above the air inlet channel.

[0005] Furthermore, conical sealing gaskets adapted to the second sections of the water inlet channel and the air inlet channel are respectively provided on both sides of the first sealing plate.

[0006] Furthermore, a first magnet for adsorbing the first sealing plate is provided at the bottom of the water inlet square cavity; a second magnet for adsorbing the first sealing plate is provided on the side of the water inlet square cavity close to the second section of the air inlet channel; and a third magnet for adsorbing the second sealing plate is provided on the side of the air inlet square cavity close to the third section of the air inlet channel.

[0007] Furthermore, the inlet section of the water inlet channel is threadedly connected to a water pipe joint; the outlet end of the drainage channel is threadedly connected to a transparent water collecting bottle; and the inlet section of the air inlet channel is threadedly connected to an air pipe joint.

[0008] Furthermore, sealing gaskets are provided on the hinged joints between the cylinder body and the valve body housing and between the hinged joint and the valve body housing.

[0009] The present invention has the following beneficial effects:

[0010] The present invention prevents water from directly entering the third section of the air intake channel by providing a drainage channel, a water receiving bottle, a first sealing plate, a second sealing plate and other devices, thereby avoiding the coolant from flowing into the air pipe and causing safety accidents such as damage to the solenoid valve and leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The present invention is a schematic overall diagram of a one-way valve body for internal cooling of a spindle tool in a machining center.

[0012] Figure 2 The present invention is a cross-sectional view of a one-way valve body for internal cooling of a spindle tool in a machining center.

[0013] Among them, 1-valve body shell; 2-hinged joint; 3-sealing cover; 4-trachea joint; 5-water pipe joint; 6-water collecting bottle; 7-first sealing plate; 8-second sealing plate; 11-air inlet channel; 12-water inlet channel; 13-drainage channel; 14-water inlet square cavity; 15-air inlet square cavity; 16-first magnet; 17-second magnet; 18-third magnet; 21-steering channel. DETAILED DESCRIPTION

[0014] In order to achieve the above-mentioned objectives and effects, the technical means and structures adopted by the present invention are described in detail with reference to the accompanying drawings for the features and functions of the preferred embodiments of the present invention.

[0015] like Figure 1-2 As shown, the present invention provides a one-way valve body for internal cooling of a spindle tool in a machining center, comprising a valve body shell 1; a longitudinally parallel water inlet channel 12 and a drainage channel 13 are provided in the middle of the valve body shell 1, and an air inlet channel 11 is vertically connected to the water inlet channel 12 and the drainage channel 13; a joint access hole is provided at one end of the valve body shell 1 and is vertically connected to the air inlet channel 11; a steering channel 21 is provided in the articulated joint 2, and the articulated joint 2 is inserted into the joint access hole and the cylinder access port in turn to connect the valve body shell 1 and the cylinder body, one end of the steering channel 21 is connected to the air inlet channel 11, and the other end is connected to the cylinder access port; a water inlet square cavity 14 is provided at the intersection of the water inlet channel 12 and the air inlet channel 11; an air inlet square cavity 15 is provided at the intersection of the drainage channel 13 and the air inlet channel 11; the water inlet square cavity 14 and the air inlet square cavity 15 The top is sealed by a sealing cover 3; the water inlet square cavity 14 and the air inlet square cavity 15 divide the air inlet channel 11 into a first section, a second section and a third section; the first section of the air inlet channel 11 is connected to the turning channel 21 of the articulated joint 2; a first sealing plate 7 is hinged in the water inlet square cavity 14; the hinge axis of the first sealing plate 7 is located below the air inlet channel 11 and on the side of the water inlet channel 12 close to the second section; when the coolant enters from the water inlet channel 12, the water flow pushes the first sealing plate 7 to flip upward, closing the second section of the air inlet channel 11; when the coolant stops and air needs to be inhaled, the air flow pushes the first sealing plate 7 to flip downward, closing the water inlet channel 12; a second sealing plate 8 is hinged in the air inlet square cavity 15 on the side close to the third section of the air inlet channel 11; the hinge axis of the second sealing plate 8 is located above the air inlet channel 11.

[0016] Conical sealing pads are provided on both sides of the first sealing plate 7, respectively, which are adapted to the second section of the water inlet channel 12 and the air inlet channel 11. The conical sealing pads are provided to improve the sealing effect.

[0017] A first magnet 16 is installed at the bottom of the water inlet square cavity 14 for attracting the first sealing plate 7. A second magnet 17 is installed on the side of the water inlet square cavity 14 near the second section of the air inlet passage 11 for attracting the first sealing plate 7. A third magnet 18 is installed on the side of the air inlet square cavity 15 near the third section of the air inlet passage 11 for attracting the second sealing plate 8. The magnets enhance the attraction and improve the sealing effect.

[0018] The inlet section of the water inlet channel 12 is threadedly connected to a water pipe connector 5; the outlet end of the drainage channel 13 is threadedly connected to a transparent water collection bottle 6; and the inlet section of the air inlet channel 11 is threadedly connected to a tracheal connector 4. The water pipe connector 5 and tracheal connector 4 facilitate connection to external water and tracheal pipes; the transparent water collection bottle 6 facilitates monitoring of water leakage.

[0019] During use, the high-pressure pump starts working, sending coolant from the water pipe into the water pipe joint 5, and then into the water inlet channel 12. The high-pressure water flow pushes the first sealing plate 7 to flip upward, closing the second section of the air inlet channel 11. This prevents the coolant entering the water inlet square cavity 14 from passing through the second section of the air inlet channel 11, and can only pass through the third section of the air inlet channel 11 into the articulated joint 2, then flow through the spindle coolant channel, and finally reach the tool. If the first sealing plate 7 has a sealing failure, the overflowing water will enter the second section of the air inlet channel 11, and will then enter the transparent water collecting bottle 6 through the air inlet square cavity 15 and the drainage channel 13. By observing the amount of water leaking in the water collecting bottle 6, it can be determined whether the first sealing plate 7 needs to be replaced. Due to the function of the second sealing plate 8, the water will not directly enter the third section of the air inlet channel 11, thus preventing the coolant from flowing into the air pipe, which may cause damage to the solenoid valve, leakage, and other safety accidents.

[0020] When it is necessary to clean the residual coolant in the coolant channel of the spindle, stop the high-pressure pump and open the air source through the solenoid valve. The compressed air enters the air pipe joint 4 through the air pipe and then enters the third section of the air inlet channel 11. The compressed air pushes the second sealing plate 8 to open, enters the air inlet square cavity 15 and then enters the second section of the air inlet channel 11, and then pushes the first sealing plate 7 to flip downward to close the water inlet channel 12. The high-pressure air entering the water inlet square cavity 14 cannot pass through the water inlet channel 12, and can only pass through the third section of the air inlet channel 11 into the articulated joint 2, and then enters the spindle coolant channel for blowing and cleaning.

[0021] In another embodiment, sealing gaskets are provided on the hinged joints 2 between the cylinder and the valve housing 1 and between the hinged joint 2 and the valve housing 1. The provision of the sealing gaskets improves the sealing effect.

[0022] The above descriptions are only preferred embodiments of the present invention, not all embodiments. Anyone should be aware that any structural changes made under the guidance of the present invention, and any technical solutions that are the same or similar to those of the present invention, fall within the scope of protection of the present invention.

Claims

1. A one-way valve body for internal cooling of a spindle tool in a machining center, characterized in that: The vent is provided with a plurality of air inlets and a plurality of drain ports, and a plurality of air inlets are provided at the vent side of the vent side. The vent side of the vent side is provided with a plurality of air inlets, a plurality of air inlets and a plurality of drain ports. The vent side of the vent side is provided with a plurality of air inlets, a plurality of air inlets and a plurality of drain ports. The vent side of the vent side is provided with a plurality of air inlets, a plurality of air inlets and a plurality of drain ports. The cavity and the air intake square cavity divide the air intake channel into a first section, a second section and a third section; the first section of the air intake channel is connected to the steering channel of the articulated joint; a first sealing plate is hinged in the water intake square cavity; the hinge axis of the first sealing plate is located below the air intake channel and on the side of the water intake channel close to the second section; when the coolant enters from the water intake channel, the water flow pushes the first sealing plate to flip upward, closing the second section of the air intake channel; when the coolant stops and air intake is required, the air flow pushes the first sealing plate to flip downward, closing the water intake channel; a second sealing plate is hinged on the side of the air intake square cavity close to the third section of the air intake channel; the hinge axis of the second sealing plate is located above the air intake channel.

2. A one-way valve body for internal cooling of a spindle tool in a machining center according to claim 1, characterized in that: Conical sealing pads adapted to the second sections of the water inlet channel and the air inlet channel are respectively provided on both sides of the first sealing plate.

3. A one-way valve body for internal cooling of a spindle tool in a machining center according to claim 2, characterized in that: A first magnet for adsorbing the first sealing plate is provided at the bottom of the water inlet square cavity; a second magnet for adsorbing the first sealing plate is provided on the side of the water inlet square cavity close to the second section of the air inlet channel; a third magnet for adsorbing the second sealing plate is provided on the side of the air inlet square cavity close to the third section of the air inlet channel.

4. A one-way valve body for internal cooling of a spindle tool in a machining center according to claim 1, 2 or 3, characterized in that: The inlet section of the water inlet channel is threadedly connected with a water pipe joint; the outlet end of the drainage channel is threadedly connected with a transparent water collecting bottle; and the inlet section of the air inlet channel is threadedly connected with an air pipe joint.

5. A one-way valve body for internal cooling of a spindle tool in a machining center according to claim 1, 2 or 3, characterized in that: Sealing gaskets are provided on the hinged joints between the cylinder body and the valve body housing and between the hinged joint and the valve body housing.

Images