Cleaning device

Abstract

The utility model provides a cleaning device which is used for being assembled on a machine tool and comprises a cleaning assembly, a liquid storage tank and an air pump. Wherein the cleaning assembly comprises an air pipe, a water pipe, a sprayer and a nozzle, the air pipe communicates with the air pump, the water pipe communicates with the liquid storage tank, a mixing cavity is formed in the sprayer, the air pipe and the water pipe communicate with the mixing cavity, and the nozzle communicates with the mixing cavity and faces the to-be-cleaned part. A mixing cavity arranged in the sprayer is used for mixing water flow and air flow, high-speed air flow passes through the mixing cavity, negative pressure is formed in the mixing cavity, cleaning liquid in a liquid storage tank is sucked through a water pipe, the cleaning liquid reaches a nozzle through the high-speed air flow to form mist spray, and compared with direct flushing water flow, the mist spray is wider in cleaning range and higher in cleaning efficiency; and the impact force of spray is smaller than the impact force of direct flushing water flow, so that the to-be-cleaned part cannot be damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine tool cleaning, in particular to a cleaning device. Background Art

[0002] During the machining process, especially during boring and milling, a large amount of heat will be generated. In order to reduce the temperature of the milling cutter, there are three ways of cooling: cutting fluid, cutting oil, and oil mist. Cutting fluid, cutting oil and oil mist will absorb the waste chips generated during the machining process. The waste chips will adhere to the workpiece and affect the accumulation of the machining process.

[0003] In the related art, waste chips on the workpiece are cleaned by blowing air and spraying water. However, for oil mist with high viscosity, the water flow with a low flow rate has little effect on cleaning the waste chips, while the water flow with a high flow rate may cause displacement or damage to the workpiece, affecting the accuracy of the workpiece. Utility Model Content

[0004] The technical purpose of the utility model is to provide a cleaning device, aiming to solve the problem that the flow rate of the cleaning liquid is difficult to regulate.

[0005] To solve the above technical problems, the utility model is implemented as follows: a cleaning device, used for being assembled on a machine tool, on which a cutting tool is installed, comprises: a cleaning component, a liquid storage tank and an air pump; wherein the cleaning component comprises an air pipe, a water pipe, a sprayer and a nozzle, the air pipe is connected to the air pump, the water pipe is connected to the liquid storage tank, a mixing chamber is provided in the sprayer, the air pipe and the water pipe are both connected to the mixing chamber, and the nozzle is connected to the mixing chamber and is arranged toward the processing position of the machine tool.

[0006] In some embodiments of the present invention, the cleaning component also includes a first control valve and a second control valve, the first control valve is arranged on the air pipe and is used to control the on-off state of the air pipe, and the second control valve is arranged on the water pipe and is used to control the on-off state of the water pipe.

[0007] In some embodiments of the utility model, the air pipe includes a first air pipe and a second air pipe, two ends of the first control valve are respectively connected to the first air pipe and the second air pipe, the first air pipe is connected to the air pump, and the second air pipe is connected to the mixing chamber;

[0008] The water pipe includes a first water pipe and a second water pipe, two ends of the second control valve are respectively connected to the first water pipe and the second water pipe, the first water pipe is connected to the liquid storage tank, and the second water pipe is connected to the mixing chamber.

[0009] In some embodiments of the utility model, a sleeve is provided between the sprayer and the nozzle, and the sleeve includes a first tube body and a second tube body disposed inside the first tube body, the first tube body is connected to the mixing chamber, and the second tube body partially extends into the mixing chamber and is connected to the second water pipe.

[0010] In some embodiments of the present invention, the cleaning device further comprises a mounting plate, one side of which is mounted on the machine tool, and the other side of which is mounted the first control valve and the second control valve.

[0011] In some embodiments of the present invention, a control switch is provided on the mounting plate, and the control switch is electrically connected to the first control valve and the second control valve.

[0012] In some embodiments of the utility model, the cleaning device also includes a detection component, the detection component includes a sensor electrically connected to the control switch, the sensor is used to detect the cleaning state of the machine tool processing position and has a preset cleaning state, when the sensor detects that the cleaning state is consistent with the cleaning state, the sensor transmits an electrical signal to the control switch.

[0013] In some embodiments of the utility model, the cleaning device further comprises a connecting block disposed on the machine tool, the connecting block comprises a base and a slide rail, and the nozzle is movably mounted on the slide rail.

[0014] In some embodiments of the utility model, the cleaning component also includes a filter, an air flow channel is formed inside the filter, two ends of the air flow channel are respectively connected to the air pump and the air pipe, and a filter net located in the air flow channel is installed in the filter.

[0015] In some embodiments of the utility model, a separation valve is provided in the filter, and the separation valve is provided on the periphery of the airflow channel corresponding to the filter net, and the separation valve is used to control the communication between the airflow channel and the external space.

[0016] Compared with the prior art, the cleaning device in the utility model has the following beneficial effects:

[0017] The utility model proposes a cleaning device for assembly on a machine tool, comprising: a cleaning component, a liquid storage tank and an air pump; wherein the cleaning component comprises an air pipe, a water pipe, a sprayer and a nozzle, the air pipe is connected to the air pump, the water pipe is connected to the liquid storage tank, a mixing chamber is arranged in the sprayer, the air pipe and the water pipe are both connected to the mixing chamber, the nozzle is connected to the mixing chamber and faces the processing position of the machine tool. The mixing chamber set in the sprayer is used to mix water flow and air flow, a high-speed air flow passes through the mixing chamber, a negative pressure is formed in the mixing chamber, the tool cleaning liquid in the liquid storage tank is sucked through the water pipe, the cleaning liquid reaches the nozzle via the high-speed air flow to form a spray, the spray has a wider cleaning range and higher cleaning efficiency than the direct water flow, and the impact force of the spray is smaller than the impact force of the direct water flow, and will not cause damage to the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic plan view of the overall structure of the cleaning device in one embodiment of the utility model;

[0019] Figure 2 yes Figure 1 Schematic diagram of part of the structure of the cleaning device.

[0020] In the accompanying drawings, each reference numeral represents:

[0021] 100. Cleaning device; 11. Nozzle; 12. Sleeve; 13. Sprayer; 14. First control valve; 141. First air pipe; 142. Second air pipe; 15. Second control valve; 151. First water pipe; 152. Second water pipe; 16. Filter; 17. Liquid storage tank; 18. Mounting plate; 19. Connecting block. DETAILED DESCRIPTION

[0022] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] Please refer to Figure 1 and Figure 2 The utility model proposes a cleaning device 100 for assembly on a machine tool (not shown in the figure), including a cleaning component, a liquid storage tank 17 and an air pump. The cleaning component includes an air pipe, a water pipe, a sprayer 13 and a nozzle 11. The air pipe is connected to the air pump, the water pipe is connected to the liquid storage tank 17, a mixing chamber is provided in the sprayer 13, the air pipe and the water pipe are both connected to the mixing chamber, and the nozzle 11 is connected to the mixing chamber and is arranged toward the processing position of the machine tool.

[0026] A mixing chamber is set in the sprayer 13, which can be used to mix water flow and air flow. High-speed air flow passes through the mixing chamber, forming negative pressure in the mixing chamber, and the cleaning liquid in the liquid storage tank 17 is sucked through the water pipe. The cleaning liquid reaches the nozzle 11 through the high-speed air flow. There are small holes or small slots in the nozzle 11. The high-speed air flow causes a pressure difference inside the nozzle 11. The liquid obtains greater kinetic energy after being pressurized. After passing through the small hole, the liquid will be ejected at a very high speed. Under the interaction of the liquid surface tension, viscosity and air resistance, the liquid gradually changes from dripping, smooth flow, wavy flow to spray flow, achieving the effect of spray cleaning of the tool. Compared with the direct water flow, the spray has a wider cleaning range and higher cleaning efficiency, and the impact force of the spray is smaller than that of the direct water flow, and will not cause damage to the parts to be cleaned on the machine tool.

[0027] The parts to be cleaned on the machine tool may be mechanical parts or electronic devices, such as assembly workpieces, fixtures, electrodes, circuit boards, power devices, CNC tools, etc., which are not limited here. In this embodiment, the machine tool may be equipped with a CNC tool to clean the waste chips generated during the CNC tool processing.

[0028] A spiral flow channel structure can be arranged in the nozzle 11. The liquid passing through the nozzle 11 will be subjected to the centrifugal force to form a vortex structure. This vortex structure further increases the spraying effect of the liquid, so that the liquid can be sprayed farther and more stably. The nozzle 11 can also be equipped with a high-speed rotating part. The liquid is thrown out to the periphery or hole of the rotating part, and the liquid is atomized by centrifugal force and aerodynamic force. When the liquid flow rate is very small and the centrifugal force is greater than the surface tension of the liquid, a small amount of large droplets thrown out from the edge of the turntable will directly split into droplets. When the flow rate and the rotation speed increase, the liquid is pulled into a large number of filamentary jets. The liquid flow is extremely unstable. After the liquid leaves the edge of the disk for a certain distance, it is separated into small droplets due to friction with the surrounding air. When the rotation speed and the flow rate increase again, the small droplets are connected into a thin film, and as the liquid film expands outward, it becomes a thinner liquid film. The cleaning liquid in the liquid storage tank 17 can be a surfactant for removing oil stains, which has surface activity and hydrophilic polar groups and lipophilic non-polar groups, thereby separating oil stains from water, which plays a role in facilitating cleaning.

[0029] In this embodiment, the cleaning component further includes a first control valve 14 and a second control valve 15. The first control valve 14 is provided on the air pipe and is used to control the on-off state of the air pipe. The second control valve 15 is provided on the water pipe and is used to control the on-off state of the water pipe. The first control valve 14 and the second control valve 15 can be solenoid valves. The general solenoid valve is provided in a sealed chamber in the solenoid valve, and a piston with an electromagnet is provided in the sealed chamber. The piston is controlled to move by the on-off of the control circuit to control the on-off state of the solenoid valve.

[0030] The first control valve 14 controls the air pipe, and the second control valve 15 controls the water pipe. In actual use, the first control valve 14 can be opened to blow air to the parts to be cleaned, quickly removing debris floating on the surface of the parts to be cleaned, and then the second control valve 15 can be opened to generate negative pressure on the mixing chamber in the sprayer 13 through the high-speed airflow in the air pipe. The pressure difference between the inside and outside of the mixing chamber allows the cleaning liquid in the liquid storage tank 17 to reach the nozzle 11 through the water pipe, and the cleaning liquid mixes with the high-speed airflow to form a spray. By controlling the valve speed of the first control valve 14 and the second control valve 15, the flow rate and coverage of the generated spray can be adjusted to achieve precise control of the cleaning of the parts to be cleaned.

[0031] Specifically, the air pipe includes a first air pipe 141 and a second air pipe 142, the two ends of the first control valve 14 are connected to the first air pipe 141 and the second air pipe 142 respectively, the first air pipe 141 is connected to the air pump, and the second air pipe 142 is connected to the mixing chamber; the water pipe includes a first water pipe 151 and a second water pipe 152, the two ends of the second control valve 15 are connected to the first water pipe 151 and the second water pipe 152 respectively, the first water pipe 151 is connected to the liquid storage tank 17, and the second water pipe 152 is connected to the mixing chamber. Separating the water pipe and the air pipe is conducive to the assembly of the first control valve 14 and the second control valve 15. The first control valve 14 and the second control valve 15 both have interfaces at both ends, and the first water pipe 151, the second water pipe 152 and the first air pipe 141, the second air pipe 142 are all provided with corresponding interfaces. The interfaces can be connected with built-in sealing gaskets, and the sealing gaskets effectively enhance the air tightness inside the cleaning component to prevent water and air leakage.

[0032] In order to extend the length of the nozzle 11 and increase the range of movement of the nozzle 11, a sleeve 12 is provided between the sprayer 13 and the nozzle 11. The sleeve 12 includes a first tube body and a second tube body disposed inside the first tube body. The first tube body is connected to the mixing chamber, and the second tube body partially extends into the mixing chamber and is connected to the second water pipe 152. The second air pipe 142 is connected to the mixing chamber. When the air pump is turned on, the air flow in the second air pipe 142 flows at a high speed. The high-speed flowing gas generates a negative pressure. The gas generates a pressure difference when it flows. The greater the speed, the greater the pressure difference. The diameter of the second tube body can be 3mm to 6mm, for example, 3mm, 4mm, 5mm, and 6mm. A smaller diameter can increase the flow rate of the cleaning liquid in the second tube body and enhance the cleaning effect.

[0033] When a high-speed airflow passes through a pipe, its speed will increase and its pressure will decrease, thereby generating negative pressure. The pressure difference generated by the negative pressure compresses the second water pipe 152 in the mixing chamber, and the second water pipe 152 is connected to the second control valve 15, the first water pipe 151 and the liquid storage tank 17 in sequence, thereby absorbing the cleaning liquid in the liquid storage tank 17 into the cavity of the nozzle 11. The sleeve 12 is provided to effectively enhance the circulation efficiency of the cleaning liquid. The pressure difference driven by the high-speed airflow makes the cleaning liquid not stay in the mixing chamber, but directly reach the nozzle 11. There will be no residual cleaning liquid in the mixing chamber, resulting in waste of cleaning liquid and facilitating the cleaning of the inside of the sprayer 13. The sprayer 13 can also be provided with a pressure relief hole. When the sprayer 13 needs to be inspected and cleaned, the internal negative pressure makes it difficult to disassemble the first tube body and the second water pipe 152 in the sleeve 12. A removable or slidable seal can be installed in the pressure relief hole. By moving the seal, the external air enters the mixing chamber through the pressure relief hole, so that the internal and external air pressures of the mixing chamber are balanced, which facilitates the disassembly of the various components connected to the sprayer 13.

[0034] To facilitate the movement of the components in the cleaning assembly, the air pipe, water pipe and sleeve 12 can all be hoses. For example, they can be corrugated pipes, plastic hoses, metal hoses, etc. Among them, the sleeve 12 is set as a hose, which is conducive to the hand-held movement of the nozzle 11. The nozzle 11 can be moved by hand to the grooves on the workpiece to be cleaned that are not easy to cover, and the direction of the nozzle 11 can be adjusted by hand. The water pipe and air pipe are set as hoses, which are easy to install on the machine tool. The machine tool is usually equipped with multiple other components and button panels. The air pipe or water pipe can be bent to avoid these areas to reduce the impact on the machine tool.

[0035] Please refer to Figure 2 In order to better fix the first control valve 14 and the second control valve 15 in the cleaning assembly on the machine tool and facilitate the use of the first control valve 14 and the second control valve 15, the cleaning assembly also includes a mounting plate 18, one side of the mounting plate 18 is mounted on the machine tool, and the first control valve 14 and the second control valve 15 are mounted on the other side. The mounting plate 18 can be detachably connected to the machine tool, and the detachable connection can be in the form of a screw assembly, plug-in, snap-on, etc. The first control valve 14 and the second control valve 15 are arranged on the same mounting plate 18, and the second air pipe 142 and the second water pipe 152 are arranged close to each other, which is conducive to the common access to the sprayer 13. Preferably, the second air pipe 142 and the second water pipe 152 can be arranged in parallel.

[0036] Furthermore, a control switch is provided on the mounting plate 18, and the control switch is electrically connected to the first control valve 14 and the second control valve 15. A control program can be set on the control switch, which can be a timing program, a step program, etc. In one embodiment, the machine tool is turned on, and after the parts to be cleaned are cut, after a preset time, the first control valve 14 and the second control valve 15 are opened, and the first control valve 14 allows the high-speed airflow in the connected air pipe and air pump to enter the mixing chamber of the sprayer 13, resulting in negative pressure in the mixing chamber. The resulting internal and external pressure difference causes the water pipe to absorb the cleaning liquid in the liquid storage tank 17 into the nozzle 11, and the cleaning liquid mixed airflow is sprayed to form a spray.

[0037] Specifically, the cleaning device also includes a detection component, which includes a sensor electrically connected to the control switch, the sensor is used to detect the cleaning state of the machine tool processing position and is preset with a cleaning state. When the sensor detects that the cleaning state meets the cleaning state, the sensor transmits an electrical signal to the control switch. The electrical signal transmitted by the sensor may be a control signal for opening the first control valve and the second control valve. When the sensor detects that the cleaning state does not meet the cleaning state, the sensor transmits a control signal for closing the first control valve and the second control valve. The sensor may be an infrared sensor, a laser sensor, etc., which is used to detect waste chips or water stains on the machine tool processing position. The detection component may also include a camera module, which is used to record and assist in judging the cleaning state of the machine tool processing position.

[0038] In another embodiment, after the machine tool is turned on and the workpiece to be cleaned is cut, after a preset time, the control program of the control switch first turns on the first control valve 14, and the air pipe and air pump connected to the first control valve 14 spray gas through the nozzle 11 to blow away the debris with poor adhesion on the workpiece to be cleaned. Then the second control valve 15 is controlled to be opened, and the water pipe and liquid storage tank 17 connected to the second control valve 15 are sucked into the nozzle 11 due to the negative pressure in the sprayer 13, and the mixed airflow generates a spray to perform secondary cleaning on the workpiece to be cleaned.

[0039] In this embodiment, the cleaning assembly also includes a connection block 19 disposed on the machine tool, the connection block 19 includes a base and a slide rail, and the nozzle 11 is movably mounted on the slide rail. The slide rail can be moved along the extension direction of the machine tool plane, the base of the connection block 19 can be detachably connected to the machine tool, the base can be set close to the part to be cleaned, the nozzle 11 can be provided with a movable groove, the movable groove is movably assembled with the slide rail, so that the nozzle 11 can move along the machine tool plane, combined with the sleeve 12 set as a hose, it can achieve full coverage of the part to be cleaned, and improve the cleaning effect and cleaning range of the cleaning device 100.

[0040] In this embodiment, the cleaning component also includes a filter 16, an air flow channel is formed inside the filter 16, and the two ends of the air flow channel are connected to the air pump and the air pipe respectively, and a filter screen located in the air flow channel is installed in the filter 16. The filter 16 can be an oil-water separator. When the compressed air enters the filter 16, the flow direction and speed change sharply, and then the oil droplets and water droplets with a density greater than that of the compressed air are separated by inertia.

[0041] With the use of the filter 16, due to the gravity and inertia, the gas ejected from the air pump is mixed with oil and water and accumulated inside the filter 16. A separation valve is provided inside the filter 16. The separation valve is provided on the side of the air flow channel corresponding to the filter screen. The separation valve is used to control the communication between the air flow channel and the external space. Excessive water or oil can flow out to the outside by opening the separation valve.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cleaning device for assembly on a machine tool, characterized in that: include: cleaning components, a fluid storage tank, and an air pump; wherein, The cleaning assembly includes an air pipe, a water pipe, a sprayer and a nozzle. The air pipe is connected to the air pump, the water pipe is connected to the liquid storage tank, a mixing chamber is provided in the sprayer, the air pipe and the water pipe are both connected to the mixing chamber, and the nozzle is connected to the mixing chamber and is arranged toward the machine tool processing position.

2. The cleaning device according to claim 1, characterized in that The cleaning component also includes a first control valve and a second control valve. The first control valve is arranged on the air pipe and is used to control the on-off state of the air pipe. The second control valve is arranged on the water pipe and is used to control the on-off state of the water pipe.

3. The cleaning device according to claim 2, characterized in that: The air pipe includes a first air pipe and a second air pipe, two ends of the first control valve are connected to the first air pipe and the second air pipe respectively, the first air pipe is connected to the air pump, and the second air pipe is connected to the mixing chamber; The water pipe includes a first water pipe and a second water pipe, two ends of the second control valve are respectively connected to the first water pipe and the second water pipe, the first water pipe is connected to the liquid storage tank, and the second water pipe is connected to the mixing chamber.

4. The cleaning device according to claim 3, characterized in that: A sleeve is provided between the sprayer and the nozzle, and the sleeve comprises a first tube body and a second tube body disposed inside the first tube body, the first tube body is connected to the mixing chamber, and the second tube body partially extends into the mixing chamber and is connected to the second water pipe.

5. The cleaning device according to claim 2, characterized in that: The cleaning assembly further comprises a mounting plate, one side of which is mounted on the machine tool, and the other side of which is mounted the first control valve and the second control valve.

6. The cleaning device according to claim 5, characterized in that: A control switch is disposed on the mounting plate, and the control switch is electrically connected to the first control valve and the second control valve.

7. The cleaning device according to claim 6, characterized in that: The cleaning device also includes a detection component, which includes a sensor electrically connected to the control switch. The sensor is used to detect the cleaning state of the machine tool processing position and is preset with a cleaning state. When the sensor detects that the cleaning state meets the cleaning state, the sensor transmits an electrical signal to the control switch.

8. The cleaning device according to claim 1, characterized in that: The cleaning component also includes a connecting block arranged on the machine tool, the connecting block includes a base and a slide rail, and the nozzle is movably assembled on the slide rail.

9. The cleaning device according to claim 1, characterized in that: The cleaning component also includes a filter, an air flow channel is formed inside the filter, two ends of the air flow channel are respectively connected to the air pump and the air pipe, and a filter net located in the air flow channel is installed in the filter.

10. The cleaning device according to claim 9, characterized in that A separation valve is provided in the filter. The separation valve is provided on the periphery of the airflow channel corresponding to the filter screen. The separation valve is used to control the communication between the airflow channel and the external space.

Images