Automatic oil-water separation device of numerical control machine tool

Abstract

The utility model relates to an automatic oil-water separation device of a numerical control machine tool, which comprises a box body, a first chamber and a second chamber are arranged in the box body, a liquid supply port is arranged on the box body corresponding to the upper part of the first chamber, a liquid discharge port is arranged at the bottom of the box body, a filter structure is arranged in the first chamber, and the bottoms of the first chamber and the second chamber are communicated. Aeration pipes are arranged at the bottoms of the first chamber and the second chamber; an exhaust hole is formed in the top of the box body; an oil collecting disc is further arranged in the second cavity, an oil inlet is formed in the upper surface of the oil collecting disc, an oil discharge outlet is formed in the side wall of the box body, an oil passing hose is connected between the oil discharge outlet and the oil inlet, and a transmission mechanism which is in transmission fit with the oil collecting disc to drive the oil collecting disc to move up and down in the second cavity is further arranged on the box body. And the oil receiving disc is driven to move the oil inlet to a separation layer of lubricating oil and cutting fluid, so that the upper-layer lubricating oil overflows into the oil inlet and is discharged through the oil discharge outlet. The structure is simple and the oil-layer separation efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tool equipment, in particular to an automatic oil-water separation device for a numerical control machine tool. Background Art

[0002] When CNC machine tools perform metal cutting and grinding on workpieces, cutting fluid is needed to cool and lubricate the workpiece and tool surface. The cutting fluid will be reasonably configured by emulsion and water in a certain proportion. Generally speaking, the cutting fluid will be simply treated for recycling, but the cutting fluid that has reached the end of its service life is called cutting fluid waste. Cutting fluid waste needs to be detoxified, and the particulate matter, floating oil, COD and other pollutants in the cutting fluid waste must be removed. The filtered concentrate is stored and recovered, and the filtered water is reused or discharged.

[0003] Cutting fluid has good cooling performance, lubrication performance, rust prevention performance, oil removal and cleaning function, anti-corrosion function, easy dilution characteristics, and is non-toxic, odorless, non-corrosive to the human body, non-corrosive to equipment, and non-polluting to the environment. Therefore, it is widely used in the field of metal processing. However, cutting fluid will encounter the problem of deterioration and odor during use. Oil, debris, dust and other debris mixed into the cutting fluid breed a large number of bacteria, which is the root cause of the odor and deterioration of the cutting fluid.

[0004] During the operation of CNC machine tools, lubricating oil and cutting fluid often mix. The cutting fluid mixed with lubricating oil will greatly reduce the optimization effect of the tool cutting performance. It is also easy to cause the cutting fluid to stink and deteriorate during storage, thereby affecting the rust prevention ability and indirectly increasing production costs. In order to reuse the cutting fluid, it is necessary to separate the oil and water in the cutting fluid and sterilize and deodorize it. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic oil-water separation device for CNC machine tools, so as to solve the problem in the prior art that the cutting fluid and lubricating oil of CNC machine tools are mixed and cannot be separated, resulting in waste, deterioration and increased costs.

[0006] In order to solve the above problems, the automatic oil-water separation device for CNC machine tools involved in the present invention adopts the following technical solutions:

[0007] An automatic oil-water separation device for a CNC machine tool includes a box body, wherein the box body has a first chamber and a second chamber arranged side by side, a liquid supply port is provided on the box body above the first chamber, and a liquid discharge port is provided at the bottom of the box body, the first chamber has a filtering structure for filtering impurities in the cutting fluid, the bottoms of the first chamber and the second chamber are connected, an aeration pipe is provided at the bottom of the first chamber and the second chamber, the input end of the aeration pipe is used to connect to an ozone generator, and an exhaust hole is provided at the top of the box body; an oil collecting pan for collecting the upper layer of lubricating oil is also provided in the second chamber, an oil inlet is provided on the upper surface of the oil collecting pan, an oil discharge port is provided on the side wall of the box body, and an oil hose is connected between the oil discharge port and the oil inlet, and the box body is also provided with a transmission mechanism that cooperates with the oil collecting pan to drive the oil collecting pan to move up and down in the second chamber, the oil collecting pan is driven to move the oil inlet to the separation layer of the lubricating oil and the cutting fluid so that the upper layer of lubricating oil overflows into the oil inlet and is discharged through the oil discharge port.

[0008] Furthermore, the oil collecting pan includes a main body pan with a cavity inside, and a top of the main body pan is provided with a plurality of connecting cylinders arranged at the same height, and the inner holes of the connecting cylinders are connected to the cavity to form an oil inlet.

[0009] Furthermore, the transmission mechanism includes a screw-nut mechanism connected to the box body, the screw-nut mechanism is equipped with a servo motor, a bracket is movably connected to the screw-nut mechanism, a transmission rod extending up and down is fixed on the bracket, and the transmission rod is fixedly connected to the oil collecting pan.

[0010] Furthermore, the surfaces of the oil hose and the oil collecting pan have an oil-isolating coating.

[0011] Furthermore, the top of the box body is provided with a first box cover and a second box cover which are detachably provided on the first chamber and the second chamber respectively. The transmission mechanism is fixed on the top of the side wall of the box body, and the second box cover has an avoidance hole for avoiding the transmission mechanism.

[0012] Furthermore, a middle partition is arranged in the box body, and a liquid level sensor is provided on the bottom wall of the partition.

[0013] The beneficial effects of the present invention are as follows: the automatic oil-water separation device for CNC machine tools divides the chamber into a first chamber and a second chamber, and arranges a filtering structure in the first chamber to perform preliminary impurity filtration on the mixed liquid. After the mixed liquid enters the interior of the box, the mixed liquid is aerated and disinfected in all directions through the rear aeration pipe to ensure the quality of the mixed liquid. After the aeration is completed, the lubricating oil gradually floats to the surface of the cutting fluid due to the difference in liquid and oil density. The lifting mechanism then drives the oil collecting pan up and down slowly, so that the oil inlet gradually extends downward into the mixed lubricating oil layer, and the lubricating oil automatically overflows from the oil inlet into the oil collecting pan. This arrangement can effectively avoid disturbing the liquid surface of the separated oil layer, and also avoids the effects of vibration, noise, etc. caused by other negative pressure suction methods such as liquid pumps. The structure is simple and the oil layer separation efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments:

[0015] Figure 1 A schematic structural diagram of a specific embodiment of the automatic oil-water separation device for CNC machine tools of the utility model;

[0016] Figure 2 for Figure 1 The internal structure diagram without the front side panel of the box;

[0017] Figure 3 for Figure 2 Half-section view;

[0018] Figure 4 for Figure 3 AA section view in the figure;

[0019] Figure 5 for Figure 2 Schematic diagram of the structure of the oil collecting pan and oil hose;

[0020] Figure 6 for Figure 2 Schematic diagram of the filter structure;

[0021] Explanation of the accompanying reference numerals: 1-box body; 11-drain port; 12-middle partition; 2-first chamber; 3-second chamber; 4-first box cover; 41-liquid supply port; 42-exhaust port; 5-second box cover; 51-avoidance hole; 6-filter structure; 61-installation frame; 62-filter frame; 63-filter screen; 64-lifting handle; 7-oil collection tray; 71-cavity; 72-oil inlet; 73-oil drain port; 8-transmission mechanism; 81-screw nut mechanism; 82-servo motor; 83-bracket; 84-transmission rod; 9-oil hose; 10-liquid level sensor; 101-main pipe; 102-branch pipe; 103-aeration hole. DETAILED DESCRIPTION

[0022] In order to make the technical objectives, technical solutions, and beneficial effects of the present invention more clear, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in a variety of different configurations.

[0023] The specific embodiment of the automatic oil-water separation device for CNC machine tools involved in the present utility model is as follows: Figures 1 to 6 As shown, the automatic oil-water separation device for CNC machine tools includes a box body 1, which has a first chamber 2 and a second chamber 3 arranged side by side. The box body 1 has a liquid supply port 41 above the first chamber 2 and a liquid discharge port 11 below the second chamber 3. In this embodiment, the top of the interior of the box body 1 has an intermediate partition 12, which is arranged upright to divide the top of the box body 1 into the first chamber 2 and the second chamber 3.

[0024] To ensure overall protection, the top of the box body 1 is also provided with a first box cover 4 and a second box cover 5, which are removably provided on the first chamber 2 and the second chamber 3, respectively. The aforementioned liquid supply port 41 is arranged on the first box cover 4, and the first and second box covers 4, 5 are also provided with an exhaust port 42, which is used to connect to an external recovery device to absorb and process the discharged ozone.

[0025] In order to meet the requirements of preliminary filtration of the mixed liquid, the first chamber 2 is provided with a filter structure 6 for filtering impurities in the cutting fluid. Specifically, a filter frame 62 is arranged in the first chamber 2, and a filter screen 63 is fixed in the filter frame 62. After the mixed liquid enters through the liquid supply port 41, it is first filtered through the filter screen 63 to filter out impurities in the mixed liquid to avoid affecting the mixed liquid. When cleaning the filter screen 63, simply open the first box cover 4 and take out the filter frame 62. In order to facilitate the fixation of the filter frame 62, an installation frame 61 is arranged in the first chamber 2. The installation frame 61 is fixedly connected to the side wall of the box body 1 through a connector. The installation frame 61 and the filter frame 62 are fixedly connected through a magnetic structure. The top of the filter frame 62 is provided with a lifting handle 64.

[0026] The bottoms of the first and second chambers 2, 3 are connected. An aeration pipe is provided at the bottoms of the first and second chambers 2, 3. The input end of the aeration pipe is connected to the ozone generator. Specifically, the aeration pipe includes a main pipe extending downward from the second cover 5, which extends to the bottom of the housing 1. It also includes several branch pipes connected to the bottom of the main pipe. The branch pipes are arranged relatively spaced apart and extend to various locations in the housing 1. Aeration holes are provided in the branch pipes. Externally connected ozone passes through the main pipe and enters the bottom of the housing 1, and is discharged through the aeration holes. As ozone overflows upward from the housing 1, it reacts with the mixed liquid, achieving sterilization, deodorization, and disinfection.

[0027] After the ozone disinfection is completed, the liquid in the box 1 is left to stand for a period of time to allow the mixed liquid to separate into oil and liquid due to the difference in oil density. The lubricating oil is then collected through the oil collecting pan 7 to separate the oil and liquid.

[0028] Specifically, an oil collecting pan 7 for collecting the upper layer of lubricating oil is provided in a vertically positioned area within the second chamber 3. An oil inlet 72 is provided on the upper surface of the oil collecting pan 7, and an oil drain 73 is provided on the side wall of the housing 1. An oil hose 9 is connected between the oil drain 73 and the oil inlet 72. The housing 1 is also provided with a transmission mechanism 8 that cooperates with the oil collecting pan 7 to drive the oil collecting pan 7 up and down within the second chamber 3. The oil collecting pan 7 is driven to move the oil inlet 72 to the separation layer between the lubricating oil and the cutting fluid, allowing the upper layer of lubricating oil to overflow into the oil inlet 72 and be discharged through the oil drain 73. The oil collecting pan 7 includes a main body having a cavity 71 therein. The top of the main body has a plurality of connecting tubes arranged at the same height. The inner holes of the connecting tubes communicate with the cavity 71 to form the oil inlet 72.

[0029] In order to achieve step-by-step smooth transmission and ensure that the movement of the oil collecting pan 7 does not cause disturbance to the liquid surface, the transmission mechanism 8 includes a screw-nut mechanism 81 connected to the box body 1, the screw-nut mechanism 81 is equipped with a servo motor 82, and a bracket 83 is movably connected to the screw-nut mechanism 81. A transmission rod 84 extending up and down is fixed on the bracket 83, and the transmission rod 84 is fixedly connected to the oil collecting pan 7.

[0030] In order to prevent the lubricating oil from adhering to the equipment and preventing it from being quickly separated, the surfaces of the oil hose 9 and the oil collecting pan 7 are provided with an oil-isolating coating.

[0031] The transmission mechanism 8 is fixed to the top of the side wall of the box body 1 , and the second box cover 5 is provided with an escape hole 51 for evading the transmission mechanism 8 .

[0032] A liquid level sensor 10 is provided on the bottom wall of the middle partition 12 .

[0033] During actual operation, the mixed liquid enters the first chamber 2 through the liquid supply port 41, is preliminarily filtered through the filter screen 63, and falls into the box body 1. After the injection reaches the set liquid level height, the liquid supply is stopped. At this time, the aeration pipe works to disinfect the liquid. After the liquid is left to stand for a period of time, the oil and liquid are separated. Then the transmission mechanism 8 drives the oil collecting pan 7 to slowly sink into the lubricating oil layer. Through overflow, the oil in the lubricating oil layer automatically falls into the oil collecting pan 7. During the oil collection process, the oil collecting pan 7 keeps slowly descending until it reaches below the liquid level of the cutting fluid, thereby achieving rapid separation of the oil and liquid.

[0034] During this process, the lubricating oil in the box body 1 can be effectively collected only by the up and down movement of the oil collecting pan 7, and no vibration, negative pressure whistling or other noise will be generated during the whole process.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate and not to limit the technical solutions of the present invention. Any equivalent replacement of the present invention and any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. Automatic oil-water separation device for CNC machine tools, characterized in that: The top of the box body is provided with an oil collecting pan for collecting the upper layer of lubricating oil, and the top surface of the oil collecting pan is provided with an oil drain port, and the top surface of the oil collecting pan is provided with an oil drain port. The oil collecting pan is provided with an oil collecting port for collecting the upper layer of lubricating oil, and the top surface of the oil collecting pan is provided with an oil drain port. An oil hose is connected between the oil drain port and the oil inlet. The box body is also provided with a transmission mechanism that cooperates with the oil collecting pan to drive the oil collecting pan to move up and down in the second chamber. The oil collecting pan is driven to move the oil inlet to the separation layer of the lubricating oil and the cutting fluid so that the upper layer of lubricating oil overflows into the oil inlet and is discharged through the oil drain port.

2. The automatic oil-water separation device for CNC machine tools according to claim 1, characterized in that: The oil collecting pan comprises a main body pan with a cavity inside. The top of the main body pan is provided with a plurality of connecting cylinders arranged at the same height. The inner holes of the connecting cylinders are connected with the cavity to form an oil inlet.

3. The automatic oil-water separation device for CNC machine tools according to claim 2, characterized in that: The transmission mechanism includes a screw-nut mechanism connected to the box body, the screw-nut mechanism is equipped with a servo motor, a bracket is movably connected to the screw-nut mechanism, a transmission rod extending up and down is fixed on the bracket, and the transmission rod is fixedly connected to the oil collecting pan.

4. The automatic oil-water separation device for CNC machine tools according to claim 3, characterized in that: The surfaces of the oil-passing hose and the oil receiving pan are provided with an oil-isolating coating.

5. The automatic oil-water separation device for CNC machine tools according to any one of claims 1 to 4, characterized in that: The top of the box body is provided with a first box cover and a second box cover which are detachably provided on the first chamber and the second chamber respectively. The transmission mechanism is fixed on the top of the side wall of the box body. The second box cover is provided with an avoidance hole for avoiding the transmission mechanism.

6. The automatic oil-water separation device for CNC machine tools according to any one of claims 1 to 4, characterized in that: A middle partition is arranged in the box body, and a liquid level sensor is provided on the bottom wall of the partition.

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