A precise air pressure filtering device for a five-axis overhead gantry machine tool

Abstract

The utility model discloses a kind of precision pneumatic filtering devices for five-axis overhead travelling crane gantry machine tool, including shell, the inner surface side of shell is fixedly connected with first filter.The precision pneumatic filtering device for five-axis overhead travelling crane gantry machine tool, by the setting of first pressure reducing valve, when using, the air intake is entered into coarser filter to remove water mist and large particle through first pressure reducing valve two stable voltage, then enters two sets of precision filter in shell, first filter contains electromagnetic exhaust valve oil mist and filter, second filter contains filter second pressure reducing valve and oil mist, two-way outlet each is equipped with first pressure reducing valve and check valve to realize secondary stable voltage and prevent backflow, differential pressure detection is arranged in the import and export of each filter element and particle monitoring is arranged in outlet, when differential pressure exceeds particle concentration exceeds trigger switching determination, if gas holder pressure reduces, pre-charging pressure switching is executed by solenoid valve controller, synchronous pressure relief to offline branch and prompt replacement filter element, the purpose of non-stop constant pressure clean gas supply is realized.

Description

Technical Field

[0001] This utility model relates to the technical field of gantry machining centers, and in particular to a precision pneumatic filtration device for a five-axis overhead crane gantry machine tool. Background Technology

[0002] Precision five-axis overhead gantry machine tools are usually equipped with high-precision AC swivel heads, linear scales, oil-air lubrication and other components that require very high air cleanliness from the compressor. Moreover, the processing time for a single part is usually long. If the existing compressed air filtration device does not replace the filter element in time, the filter element may become clogged and fail during the processing, which may lead to damage to components such as AC swivel heads and linear scales, or even scrap the processed workpiece. Utility Model Content

[0003] The main objective of this invention is to provide a precision pneumatic filtration device for a five-axis overhead crane gantry milling machine, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A precision pneumatic filtration device for a five-axis overhead crane gantry milling machine includes a housing, a first filter fixedly connected to one side of the inner surface of the housing, a second filter fixedly connected to one side of the inner surface of the housing, the first filter and the second filter being connected in parallel filtration circuits, a coarse filter fixedly connected to one side of the inner surface of the housing, and two first pressure reducing valves fixedly connected to one and the second filter respectively.

[0005] In order to achieve the effect of collecting, distributing and connecting electrical signals, as a precision pneumatic filtration device for a five-axis overhead crane gantry machine tool according to this utility model, an electrical terminal block is fixedly connected to one side of the inner surface of the housing.

[0006] In order to reduce sudden airflow noise during the exhaust process, as a precision pneumatic filtration device for a five-axis overhead crane gantry machine tool, an exhaust noise reduction structure is fixedly connected to one side of the inner surface of the housing.

[0007] In order to enable centralized power supply and control of the solenoid valve, as a precision pneumatic filtration device for a five-axis overhead crane gantry machine tool according to this utility model, a solenoid valve controller is fixedly connected to one side of the inner wall of the housing.

[0008] In order to achieve the purpose of quantitatively delivering lubricating oil to the pneumatic system, as a precision pneumatic filtration device for a five-axis overhead crane gantry machine tool, an oil mist lubrication pump is fixedly connected to one side of the upper surface of the housing. The oil mist lubrication pump includes a metering unit and a pressure gauge.

[0009] In order to ensure the safety, lubrication and cleanliness of compressed air, as a precision pneumatic filtration device for a five-axis overhead crane gantry machine tool, the first filter includes an electromagnetic exhaust valve, an oil mist lubricator and a filter, and the second filter includes a filter, a second pressure reducing valve and an oil mist lubricator.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. In this utility model, by setting a first pressure reducing valve, during use, the intake air is pressure-stabilized by the first pressure reducing valve and enters the coarse filter to remove water mist and large particles. Then it enters two sets of fine filters in the housing. The first filter includes an electromagnetic exhaust valve, an oil mist lubricator and a filter. The second filter includes a filter, a second pressure reducing valve and an oil mist lubricator. Each of the two outlets is equipped with a first pressure reducing valve and a one-way valve to achieve secondary pressure stabilization and backflow prevention. Differential pressure detection is set at the inlet and outlet of each filter element and particle monitoring is set at the outlet. When the differential pressure exceeds the particle concentration, a switching judgment is triggered. If the pressure of the air storage tank decreases, the electromagnetic valve controller performs a pre-pressurization switching, simultaneously depressurizes the downstream branch and prompts for filter element replacement, so as to achieve the purpose of constant pressure clean air supply without stopping the machine. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the first filter according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the gas path principle structure of an embodiment of the present utility model.

[0012] In the diagram: 1. Outer casing; 3. First filter; 4. Second filter; 5. Coarse filter; 6. First pressure reducing valve; 7. Electrical terminal block; 8. Exhaust silencer structure; 9. Solenoid valve controller; 10. Oil mist lubrication pump. Detailed Implementation

[0013] 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.

[0014] Example 1 like Figure 1-3 As shown, a precision pneumatic filtration device for a five-axis overhead crane gantry machine tool includes a housing 1, and a first filter 3 is fixedly connected to one side of the inner surface of the housing 1. In this embodiment, a second filter 4 is fixedly connected to one side of the inner surface of the outer casing 1. The first filter 3 and the second filter 4 are connected in parallel through a filtration circuit. A coarse filter 5 is fixedly connected to one side of the inner surface of the outer casing 1. A first pressure reducing valve 6 is fixedly connected to one side of the inner surface of the outer casing 1. There are two first pressure reducing valves 6, which are respectively connected to the first filter 3 and the second filter 4.

[0015] In practical use, the user's air enters the coarse filter 5 through the first pressure reducing valve 6 and is then stabilized to remove water mist and large particles. After that, the air enters the two sets of fine filtration branches inside the outer casing 1. The first filter 3 includes an electromagnetic exhaust valve, an oil mist lubricator, and a filter. The second filter 4 includes a filter, a first pressure reducing valve 6, and an oil mist lubricator. Each of the two outlets is equipped with a first pressure reducing valve 6 and a one-way valve to achieve secondary pressure stabilization and backflow prevention. Differential pressure detection is set at the inlet and outlet of each filter element, and particle monitoring is set at the outlet. When the differential pressure exceeds the particle concentration, a switching judgment is triggered. If the pressure of the air tank decreases, the solenoid valve controller 9 performs pre-pressurization and switching, simultaneously depressurizing the downstream branch and prompting for filter element replacement, thus achieving a constant pressure clean air supply effect without stopping the machine.

[0016] In this embodiment, an electrical terminal block 7 is fixedly connected to one side of the inner surface of the housing 1.

[0017] In practical use, the electrical terminal block 7 fixed inside the housing 1 is used to standardize and reliably distribute the electrical signals and power of each sensor and actuator, so as to realize centralized connection and isolation between field components and control system.

[0018] In this embodiment, an exhaust silencing structure 8 is fixedly connected to one side of the inner surface of the outer casing 1.

[0019] In practical use, the exhaust silencer structure 8 converts the pulsating sound energy of high-speed exhaust into heat energy and disperses pressure pulses by setting porous sound-absorbing material and throttling diffusion channels inside the shell, thereby reducing noise and impact and ensuring a smooth and quiet depressurization and switching process.

[0020] In this embodiment, a solenoid valve controller 9 is fixedly connected to one side of the inner wall of the outer casing 1.

[0021] In practical use, by collecting sensor signals such as differential pressure and particles and performing logical judgment with the pressure threshold of the gas storage tank, a controlled drive voltage is output to the electromagnetic switching valve and the exhaust valve to realize the automated interlocking control of pre-pressurization, switching and depressurization of the two filter branches.

[0022] In this embodiment, an oil mist lubrication pump 10 is fixedly connected to one side of the upper surface of the housing 1. The oil mist lubrication pump 10 includes a metering unit and a pressure gauge.

[0023] In practical use, the intake air passes through the first pressure reducing valve 6 and the coarse filter 5 to complete one pressure stabilization and pretreatment before entering the two sets of branches inside the housing. Each branch is equipped with the first pressure reducing valve 6 and a one-way valve, and has electromagnetic exhaust and oil mist lubrication. Differential pressure detection and outlet particle monitoring are arranged at the inlet and outlet of the filter element. The signal is sent to the solenoid valve controller 9 and the CNC system through the electrical terminal block. When the differential pressure exceeds the limit and meets the pressure threshold of the air storage tank, the controller first pre-pressurizes the backup branch and then drives the valve group to complete the seamless switching.

[0024] In this embodiment, the first filter 3 includes an electromagnetic exhaust valve, an oil mist lubricator, and a filter, and the second filter 4 includes a filter, a second pressure reducing valve, and an oil mist lubricator.

[0025] In practical use, the second filter 4 provides continuous air supply through pressure reduction and stabilization and oil mist lubrication. The first filter 3 is equipped with an electromagnetic exhaust valve for quick pressure relief and maintenance. The differential pressure is monitored to trigger seamless switching, ensuring clean, constant pressure, lubrication, and stable output.

[0026] Working principle: During use, the user's air enters the coarse filter 5 through the intake and is pressurized to remove water mist and large particles. Then, it enters two sets of fine filtration branches inside the outer casing 1. The first filter 3 includes an electromagnetic exhaust valve, an oil mist lubricator, and a filter. The second filter 4 includes a filter, a second pressure reducing valve, and an oil mist lubricator. Each outlet is equipped with a first pressure reducing valve 6 and a one-way valve to achieve secondary pressure stabilization and backflow prevention. Differential pressure detection is set at the inlet and outlet of each filter element, and particle monitoring is set at the outlet. When the differential pressure exceeds the particle concentration, a switching judgment is triggered. If the air tank pressure decreases, the solenoid valve controls the flow. Unit 9 performs pre-pressurization and switching, simultaneously depressurizes the downstream branch and prompts for filter replacement. After the intake air passes through the coarse filter 5 for one-time pressure stabilization and pretreatment, it enters the two branches inside the housing. Each branch is equipped with a first pressure reducing valve 6 and a one-way valve, and has electromagnetic exhaust and oil mist lubrication. Differential pressure detection and outlet particle monitoring are arranged at the inlet and outlet of the filter element. The signal is sent to the solenoid valve controller 9 and the CNC system through the electrical terminal block. When the differential pressure exceeds the limit and meets the pressure threshold of the air storage tank, the controller first pre-pressurizes the backup branch and then drives the valve group to complete the seamless switching, thus completing the use of the device.

[0027] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A precision pneumatic filtration device for a five-axis overhead crane gantry milling machine, comprising a housing (1), characterized in that: A first filter (3) is fixedly connected to one side of the inner surface of the housing (1); a second filter (4) is fixedly connected to one side of the inner surface of the housing (1), the first filter (3) and the second filter (4) are connected in parallel filtration circuit, a coarse filter (5) is fixedly connected to one side of the inner surface of the housing (1), and a first pressure reducing valve (6) is fixedly connected to one side of the inner surface of the housing (1). There are two first pressure reducing valves (6), which are respectively connected to the first filter (3) and the second filter (4).

2. The precision pneumatic filtration device for a five-axis overhead crane gantry milling machine according to claim 1, characterized in that: An electrical terminal block (7) is fixedly connected to one side of the inner surface of the housing (1).

3. The precision pneumatic filtration device for a five-axis overhead crane gantry milling machine according to claim 1, characterized in that: An exhaust silencing structure (8) is fixedly connected to one side of the inner surface of the outer shell (1).

4. A precision pneumatic filtration device for a five-axis overhead crane gantry milling machine according to claim 1, characterized in that: A solenoid valve controller (9) is fixedly connected to one side of the inner wall of the outer casing (1).

5. A precision pneumatic filtration device for a five-axis overhead crane gantry milling machine according to claim 1, characterized in that: An oil mist lubrication pump (10) is fixedly connected to one side of the upper surface of the housing (1), and the oil mist lubrication pump (10) includes a metering unit and a pressure gauge.

6. A precision pneumatic filtration device for a five-axis overhead crane gantry milling machine according to claim 1, characterized in that: The first filter (3) includes an electromagnetic exhaust valve, an oil mist lubricator, and a filter, and the second filter (4) includes a filter, a second pressure reducing valve, and an oil mist lubricator.

Images