Intelligent frame type high-pressure filtering equipment

Abstract

The utility model relates to the technical field of numerical control machine tool spindle center water outlet, and discloses intelligent frame type high-pressure filtering equipment, which is characterized in that a backwashing filter, a high-pressure screw pump and a pressure-limiting stop valve are arranged at the upper part of a frame type base, a sewage draining coaxial valve is arranged on the backwashing filter, and a high-pressure screw pump is arranged on the high-pressure screw pump; the high-pressure screw pump is connected with the backwashing filter through a pipeline, the high-pressure screw pump is connected with the pressure limiting stop valve, a digital display pressure switch is arranged at one end of the backwashing filter, and a pressure gauge is arranged on the pressure limiting stop valve. According to the utility model, through structures such as the backwashing filter, the high-pressure screw pump, the variable frequency motor, the pressure limiting stop valve, the pollution discharge coaxial valve, the control box, the pressure gauge and the digital display pressure switch, a better cooling effect, a longer service life of a cutter and a higher cutting speed are realized, the processing efficiency is improved, the processing cost is reduced, the usage amount of cutting fluid is saved, and the cutting machine is more environment-friendly.

Description

Technical Field

[0001] This utility model relates to the field of water outlet technology for CNC machine tool spindles, and in particular to an intelligent frame-type high-pressure filtration device. Background Technology

[0002] With the development of industries such as new energy vehicles, aviation, nuclear power equipment, offshore facilities, mobile communication equipment, and instrumentation, a large number of new materials and processes have emerged, such as difficult-to-machine materials like chromium-nickel-iron alloys, Hastelloy, cobalt-chromium alloys, titanium alloys, and duplex steel. The high reliability requirements of equipment using these materials place high demands on the machining quality of the parts used, while also imposing stricter requirements on filtration accuracy, intelligent cooling, consumable usage, energy consumption, and intelligent control. Currently, traditional cooling methods suffer from poor heat control, chip entanglement, lack of chip breaking function, short tool life, high consumable consumption, large equipment footprint, and limited functionality.

[0003] With the increasing adoption of hollow water-cooled spindles in machine tools, these tools require cutting fluid booster devices to provide high-pressure, high-cleanliness cutting fluid for the central cooling function. This addresses issues such as difficult chip removal, chip accumulation scratching the hole surface, and easy tool wear during deep hole drilling, internal milling, reaming, boring, tapping, and internal cavity cleaning. Currently, with the development of intelligent and precision machine tools, existing cutting fluid filtration systems have some shortcomings. Regarding cutting fluid cleaning and filtration, insufficiently clean circulating cutting fluid leads to contamination of hollow tools and materials, severely affecting tool life and machine tool accuracy. In terms of cutting fluid pressure control, the lack of intelligent monitoring equipment means that the usage of various devices in the system relies on experience rather than scientific and effective data references. This results in insufficient or unstable cutting fluid supply pressure, leading to inadequate lubrication and cooling of high-speed rotating tools during deep hole machining, causing accelerated wear. Traditional cutting fluid filtration systems cannot change the cutting fluid supply pressure, limiting their application to different machining environments. In current cutting fluid filtration systems, the filtration equipment providing high-pressure cleaning for the hollow spindle of machine tools is integrated into the fluid tank, and there is no specific filtration product. Therefore, this paper proposes an intelligent frame-type high-pressure filtration device to solve the problems of poor heat control, chip entanglement, lack of chip breaking function, low tool life, high consumable consumption, large equipment footprint, and limited functionality in traditional cooling methods. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an intelligent frame-type high-pressure filtration device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an intelligent frame-type high-pressure filtration device, comprising a frame-type base, wherein a backwash filter, a high-pressure screw pump and a pressure limiting shut-off valve are arranged on the upper part of the frame-type base, a sewage discharge coaxial valve is arranged on the backwash filter, the high-pressure screw pump and the backwash filter are connected by pipeline, the high-pressure screw pump is connected to the pressure limiting shut-off valve, a digital display pressure switch is arranged on the side of the backwash filter connected to the high-pressure screw pump pipeline, and a pressure gauge is arranged on the pressure limiting shut-off valve.

[0006] As a further description of the above technical solution:

[0007] A control box is fixedly connected to the upper left end of the frame-type base, and a variable frequency motor is installed on the high-pressure screw pump. The control box is electrically connected to the variable frequency motor.

[0008] Lifting rings are fixedly installed on both sides of the upper surface of the frame base.

[0009] This utility model has the following beneficial effects:

[0010] This invention achieves better cooling, longer tool life, faster cutting speed, improved processing efficiency, reduced processing costs, reduced cutting fluid usage, and greater environmental friendliness through a backwash filter, high-pressure screw pump, variable frequency motor, pressure limiting shut-off valve, drain coaxial valve, control box, pressure gauge, and digital pressure switch. Attached Figure Description

[0011] Figure 1 This is a structural diagram of an intelligent frame-type high-pressure filtration device proposed in this utility model;

[0012] Figure 2 This is a schematic diagram of the principle of an intelligent frame-type high-pressure filtration device proposed in this utility model.

[0013] Legend:

[0014] 1. Frame-type base; 2. Control box; 3. Variable frequency motor; 4. High-pressure screw pump; 5. Pressure limiting shut-off valve; 6. Pressure gauge; 7. Digital display pressure switch; 8. Backwash filter; 9. Sewage discharge coaxial valve;

[0015] 10. Hanging rings. Detailed Implementation

[0016] 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.

[0017] Reference Figure 1-2 The present invention discloses an intelligent frame-type high-pressure filtration device, comprising a frame-type base 1, on the upper part of which a backwash filter 8, a high-pressure screw pump 4, and a pressure limiting shut-off valve 5 are arranged. A sewage discharge coaxial valve 9 is arranged on the backwash filter 8. The high-pressure screw pump 4 and the backwash filter 8 are connected by a pipeline. The high-pressure screw pump 4 is connected to the pressure limiting shut-off valve 5. A digital display pressure switch 7 is arranged on one side of the backwash filter 8. A pressure gauge 6 is arranged on the pressure limiting shut-off valve 5. A control box is fixedly connected to the upper left end of the frame-type base. A variable frequency motor 3 is arranged on the high-pressure screw pump 4. The control box 2 is electrically connected to the variable frequency motor 3. Lifting rings 10 are fixedly arranged on both sides of the upper surface of the frame-type base 1.

[0018] After the equipment is turned on, the booster pump on the primary water tank of the machine tool supplies cutting fluid to the high-pressure unit. The cutting fluid first passes through the backwash filter 8 for filtration, and then the filtered cutting fluid is supplied to the high-pressure screw pump 4. The high-pressure screw pump 4 is driven by the variable frequency motor 3 mounted on it, which pressurizes the filtered cutting fluid and provides high-pressure internal cooling water to the machine tool spindle through the pressure limiting shut-off valve 5. The filtered wastewater is discharged back to the collection device on the primary water tank through the drain valve 9 for collection and treatment of slag liquid. The control box 2 performs logical control of the operation of the entire system. The pressure gauge 6 monitors the system's liquid pressure in real time, and the digital display pressure switch 7 will issue an alarm when the liquid supply pressure of the primary water tank booster pump is insufficient.

[0019] A control box 2 is fixedly connected to the upper left end of the frame base 1. A variable frequency motor 3 is installed on the high-pressure screw pump 4. The control box 2 is electrically connected to the variable frequency motor 3. The control box 2 indirectly controls the high-pressure screw pump to deliver cutting fluid by controlling the variable frequency motor 3, which is convenient for control. Lifting rings 10 are fixedly connected to the upper left and right sides of the frame base 1 for easy hoisting. The backwash filter 8 in this application adopts Chinese patent document ZL201821770847, and the sewage discharge coaxial valve 9 adopts Chinese patent document ZL201821772053.5.

[0020] Working principle: After the equipment is turned on, the booster pump on the primary water tank of the machine tool supplies cutting fluid to the high-pressure unit. The cutting fluid first passes through the backwash filter 8 for filtration, and then the filtered cutting fluid is supplied to the high-pressure screw pump 4. The high-pressure screw pump is driven by the variable frequency motor 3, which pressurizes the filtered cutting fluid and provides high-pressure internal cooling water to the machine tool spindle through the pressure limiting shut-off valve 5. The filtered wastewater is discharged back to the collection device on the primary water tank through the drain valve 9 for collection and treatment of slag and liquid. Serial number 2 is the control box, which performs logical control of the operation of the entire system. Serial number 6 is the pressure gauge, which monitors the system's liquid outlet pressure in real time. Serial number 7 is the digital display pressure switch, which will issue an alarm when the liquid supply pressure of the primary water tank booster pump is insufficient. Furthermore, pressure levels can be switched according to process requirements via M-codes. The machine tool's primary water tank filtration status can be monitored based on operating conditions, and water usage can be monitored. It features complete unloading and overpressure unloading functions, variable frequency control provides flow on demand, and a proportional pressure relief valve offers stepless pressure adjustment for stable flow and pressure. An optional permanent magnet motor with a built-in permanent magnet in the rotor eliminates losses due to secondary current, resulting in more efficient operation. Cooling pressure can be switched via M-codes to control temperature rise. The coaxial valve's balanced structure design results in ultra-low drive pressure and air consumption that is one-tenth that of ordinary valves, eliminating consumable costs. All filter elements require no filter media replacement and are maintenance-free. High-speed drain valves and pressure relief shut-off valves are also included for pollution resistance. Maintenance-free and with no consumables, the stainless steel wedge-shaped wire-wound filter element uses microporous filtration to ensure that large particles larger than 30μm do not pass through, achieving 100% filtration. This reliable filtration extends the service life of precision components such as high-pressure pumps, rotary joints, and internally cooled blades. It features a complete unloading function to avoid frequent start-stop of the high-pressure screw pump and an overpressure unloading function, further extending the pump's lifespan. All valves are high-flow, small-sized coaxial valves. The backwash filter is one-tenth the size of a paper bag filter. Its frame-based base design places all components on the upper part of the base, with mounting holes for easy installation, observation, and heat dissipation. It boasts a high degree of integration, a small footprint, a compact structure, and an aesthetically pleasing design.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A smart frame type high pressure filtration apparatus comprising a frame type base (1), characterized in that: The upper portion of the frame base (1) is provided with a backwashing filter (8), a high-pressure screw pump (4) and a pressure-limiting stop valve (5), the backwashing filter (8) is provided with a blowdown coaxial valve (9), the high-pressure screw pump (4) and the backwashing filter (8) are connected through pipelines, the high-pressure screw pump (4) is connected with the pressure-limiting stop valve (5), one end of the backwashing filter is provided with a digital pressure switch (7), and the pressure-limiting stop valve (5) is provided with a pressure gauge (6).

2. The intelligent frame type high pressure filtration apparatus according to claim 1, characterized in that: The upper left end of the frame base (1) is fixedly connected with a control box (2), the high-pressure screw pump (4) is provided with a frequency conversion motor (3), and the control box (2) is electrically connected with the frequency conversion motor (3).

3. The intelligent frame type high pressure filtration apparatus according to claim 1, characterized in that: The upper end surface of the frame base (1) is fixedly provided with lifting rings (10) on both sides.

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