Grinding machine grinding fluid water level detection device

Abstract

The utility model discloses a grinding machine grinding fluid water level detection device which comprises a water tank, a dirt storage groove is formed in the bottom of the water tank, a detection pipe extending upwards is arranged at the upper end of the side face of the dirt storage groove, an air pressure sensor for detecting air pressure in the detection pipe is arranged at the top of the detection pipe, and the lower end in the detection pipe is filled with a separation oil layer. And the inner cavity of the detection pipe positioned on the upper side of the separation oil layer is filled with filling gas. According to the grinding fluid level detection device for the grinding machine, a non-contact detection mode is adopted, the liquid level of grinding fluid in the water tank can be detected, the liquid level of the grinding fluid is kept at a certain height, the grinding fluid containing a large amount of impurities on the lower side of the water tank can be prevented from being conveyed to the grinding machine, and therefore the grinding quality is guaranteed, the structure is simple, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of grinders, in particular to a grinding fluid water level detection device for a grinder. Background Art

[0002] At present, the grinding fluid water level detection device mainly detects the water level through a float water level gauge, and then controls the water pump to extract the grinding fluid in the water tank through the PLC controller, thereby controlling the grinding fluid level in the water tank. The float type liquid level controller mainly plays the following roles in production: controlling the grinding fluid water level within a certain range, stabilizing the water tank level, ensuring that the water pump extracts a certain height of grinding fluid in the water tank, so that the grinding fluid sent to the grinder is clean and meets the requirements, thereby ensuring the grinding quality of the grinder.

[0003] However, during the grinding process of the grinder, the corrosive effect of the grinding fluid may cause the float-type liquid level detector to get stuck or malfunction, thereby cutting off the water supply to the grinder or pumping grinding fluid containing impurities to the bottom of the water tank, affecting the grinding quality.

[0004] Therefore, the present application provides a grinding fluid water level detection device for a grinder to solve the above-mentioned problem. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a grinding fluid water level detection device for a grinder. The device adopts a non-contact detection method to detect the grinding fluid level in a water tank, so that the grinding fluid level is maintained at a certain height, and the grinding fluid containing a large amount of impurities on the lower side of the water tank can be avoided from being transported to the grinder, thereby ensuring the grinding quality. The device has a simple structure and is easy to use, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grinding fluid water level detection device for a grinder, comprising a water tank, a sewage storage tank is provided at the bottom of the water tank, a detection tube extending upward is provided at the upper end of the side of the sewage storage tank, an air pressure sensor for detecting the air pressure inside the detection tube is provided at the top of the detection tube, the lower end of the interior of the detection tube is filled with a separation oil layer, and the inner cavity of the detection tube located on the upper side of the separation oil layer is filled with filling gas.

[0007] As a preferred technical solution of the utility model, a drainage pipe, a water inlet pipe and a water extraction pipe are sequentially arranged on the side of the water tank in a direction from bottom to top.

[0008] As a preferred technical solution of the utility model, a drain valve is provided on the drain pipe.

[0009] As a preferred technical solution of the utility model, a check valve is provided on the water inlet pipe.

[0010] As a preferred technical solution of the utility model, a sewage pipe is provided at the lower end of the side of the sewage storage tank, and a sewage valve is provided on the sewage pipe.

[0011] As a preferred technical solution of the utility model, a transparent observation window is provided on the detection tube.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The grinding fluid water level detection device for a grinder according to the example of the utility model has different air pressures in a detection tube as the grinding fluid level in the water tank varies. The air pressure in the detection tube is detected by an air pressure sensor to detect the grinding fluid level in the water tank. The non-contact detection method is used to avoid corrosion of the air pressure sensor and has a long service life.

[0014] The grinding fluid water level detection device for a grinder in the example of the utility model adopts a non-contact detection method, which can detect the grinding fluid level in the water tank and keep the grinding fluid level at a certain height. This can avoid the grinding fluid containing a large amount of impurities on the lower side of the water tank from being transported to the grinder, thereby ensuring the grinding quality. The structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 A right view structural diagram of ;

[0017] Figure 3 It is a cross-sectional structural schematic diagram of the utility model.

[0018] In the figure: 1 water tank, 2 sewage storage tank, 3 detection tube, 31 transparent observation window, 4 air pressure sensor, 5 drainage pipe, 6 water inlet pipe, 7 water extraction pipe, 8 oil layer separation, 9 filling gas. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3The utility model provides a technical solution: a grinding fluid water level detection device for a grinder, comprising a water tank 1, a sewage storage tank 2 is provided at the bottom of the water tank 1, a detection tube 3 extending upward is provided at the upper end of the side of the sewage storage tank 2, an air pressure sensor 4 for detecting the air pressure inside the detection tube 3 is provided at the top of the detection tube 3, the lower end of the interior of the detection tube 3 is filled with a separation oil layer 8, and the inner cavity of the detection tube 3 located on the upper side of the separation oil layer 8 is filled with a filling gas 9. As the grinding fluid level in the water tank 1 is different, the air pressure in the detection tube 3 is also different. The grinding fluid level in the water tank 1 is detected by detecting the air pressure in the detection tube 3 through the air pressure sensor 4. The non-contact detection method can prevent the air pressure sensor 4 from being corroded and has a long service life.

[0021] The separation oil layer 8 is used to separate the filling gas 9 and the grinding fluid to prevent the filling gas 9 from dissolving into the grinding fluid.

[0022] Furthermore, a drainage pipe 5, a water inlet pipe 6 and a water extraction pipe 7 are sequentially arranged on the side of the water tank 1 in a direction from bottom to top.

[0023] Furthermore, a drain valve is provided on the drain pipe 5 , and the grinding fluid in the water tank 1 can be discharged through the drain pipe 5 by opening the drain valve.

[0024] Furthermore, a check valve is provided on the water inlet pipe 6 , and an external conveying device can convey the grinding fluid to the water tank 1 through the water inlet pipe 6 .

[0025] Furthermore, a drain pipe is provided at the lower end of the side of the sewage storage tank 2, and a drain valve is provided on the drain pipe. By opening the drain valve, the grinding fluid with impurities that has settled to the bottom can be discharged through the drain pipe.

[0026] Furthermore, a transparent observation window 31 is provided on the detection tube 3, which is convenient for observing the height of the separation oil layer 8 in the detection tube 3 and for adding the separation oil layer 8 and the filling gas 9 in time.

[0027] A feed pipe is provided on the side of the detection tube 3 , and a valve is provided on the feed pipe, through which the separation oil layer 8 and the filling gas 9 can be added.

[0028] The air pressure sensor 4 used in the present invention is a commonly used electronic component in the prior art. Its working method and circuit structure are well-known technologies and are not described in detail here. The air pressure sensor 4 is electrically connected to the external PLC controller integrated machine. The air pressure sensor 4 detects the internal air pressure of the detection tube 3 and transmits the signal to the external PLC controller integrated machine. The external PLC controller integrated machine processes the signal and controls the operation of the external pump. The external pump is used to extract the grinding fluid in the water tank 1.

[0029] When using:

[0030] Correction operation:

[0031] like Figure 3 As shown, first fill the water tank 1 with grinding fluid of appropriate height, and under the principle of communicating vessels, part of the grinding fluid enters the detection tube 3, and then a part of the separation oil layer 8 is transported to the detection tube 3 through the feeding pipe, and a certain amount of filling gas 9 is filled;

[0032] Continue to fill the water tank 1 with grinding fluid. When the liquid level in the water tank 1 reaches point B, observe and record the air pressure value of the air pressure sensor 4 at this time as Pa is small, indicating that the liquid level in the water tank 1 reaches the set lowest point under this air pressure; when the liquid level reaches point A, observe and record the air pressure value of the air pressure sensor 4 at this time as Pa is large, indicating that the liquid level in the water tank 1 reaches the set highest point under this air pressure.

[0033] In actual use:

[0034] When the grinding fluid level in the water tank 1 is higher than point A, the air pressure sensor 4 detects that the air pressure value is greater than Pa, and the external PLC controller all-in-one controls the external pump to work and extract the grinding fluid in the water tank 1;

[0035] When the water level of the grinding fluid in the water tank 1 reaches point B, the air pressure sensor 4 detects that the air pressure value is equal to Pa small, and the external PLC controller all-in-one controls the external pump to stop working;

[0036] When the grinding fluid level in water tank 1 reaches below point B, the air pressure sensor 4 detects that the air pressure value is less than Pa, and the external PLC controller all-in-one controls the external conveying equipment to convey the grinding fluid to water tank 1 through the water inlet pipe 6, thereby replenishing the grinding fluid in water tank 1.

[0037] Open the drain valve regularly to discharge impurities in the sewage storage tank 2.

[0038] The separation oil layer 8 and the filling gas 9 of the detection tube 3 are replenished regularly, and calibration operations are performed regularly.

[0039] The utility model adopts a non-contact detection method, which can detect the grinding fluid level in the water tank 1, so that the grinding fluid level is maintained at a certain height, and the grinding fluid containing a large amount of impurities at the lower side of the water tank 1 can be prevented from being transported to the grinding machine, thereby ensuring the grinding quality. The utility model has a simple structure and is easy to use.

[0040] The undisclosed parts in the present utility model are all prior art, and their specific structures, materials and working principles are not described in detail. Although the embodiments of the present utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the attached claims and their equivalents.

Claims

1. A grinding fluid water level detection device for a grinding machine, comprising a water tank (1), characterized in that: A sewage storage tank (2) is provided at the bottom of the water tank (1), a detection tube (3) extending upward is provided at the upper end of the side of the sewage storage tank (2), a pressure sensor (4) for detecting the internal air pressure of the detection tube (3) is provided at the top of the detection tube (3), the lower end of the interior of the detection tube (3) is filled with a separation oil layer (8), and the inner cavity of the detection tube (3) located above the separation oil layer (8) is filled with a filling gas (9).

2. The grinding fluid water level detection device for a grinding machine according to claim 1, characterized in that: A drainage pipe (5), a water inlet pipe (6) and a water extraction pipe (7) are sequentially arranged on the side of the water tank (1) in a direction from bottom to top.

3. The grinding fluid water level detection device for a grinding machine according to claim 2, characterized in that: The drainage pipe (5) is provided with a drainage valve.

4. The grinding fluid water level detection device for a grinding machine according to claim 2, characterized in that: The water inlet pipe (6) is provided with a check valve.

5. The grinding fluid water level detection device for a grinding machine according to claim 1, characterized in that: A sewage discharge pipe is provided at the lower end of the side of the sewage storage tank (2), and a sewage discharge valve is provided on the sewage discharge pipe.

6. The grinding fluid water level detection device for a grinding machine according to claim 1, characterized in that: The detection tube (3) is provided with a transparent observation window (31).

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