A coolant filtration system for wire cutting machine tools

Abstract

The utility model discloses a coolant filtering system for a wire cutting machine tool, belonging to the technical field of wire cutting machine tools. The device comprises a bracket, a bottom plate is fixed at the bottom of the bracket, a derivation pipe is fixed to a clamp on the bracket, one end of the derivation pipe is connected to a coolant tank of the wire cutting machine tool, the other end of the derivation pipe is connected to a discharge pipe, the upper end of the discharge pipe is threadedly connected to a liquid outlet pipe, the liquid outlet pipe is connected to a liquid outlet structure of the wire cutting machine tool, a first filter core is screwed fixed between the discharge pipe and the derivation pipe, an auxiliary filter assembly is further connected to the discharge pipe, and the auxiliary filter assembly is communicated with the liquid outlet pipe; the system ensures high cleanliness of the coolant without affecting the normal coolant supply of the machine tool, and is fully automated and controlled, saving labor costs.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire cutting machine tools, and in particular relates to a cooling liquid filtering system of a wire cutting machine tool. Background Art

[0002] The CNC wire cutting machine tool is mainly composed of three parts: mechanical, electrical and working fluid system. Among them, the working fluid system is generally composed of a working fluid tank, a working fluid pump, a liquid inlet pipe, a liquid return pipe, a flow control valve, a filter cover or a filter element, etc., which are used to concentrate the discharge energy, take away the discharge heat to cool the electrode wire and the workpiece, and remove the electro-erosion products.

[0003] The existing coolant filtration system of the wire cutting machine generally includes a working pump, a filter, a coolant tank, etc., and the filter is equipped with a filter element. The working pump extracts the coolant in the coolant tank and transports it to the filter, and then it is filtered by the filter and transported to the wire cutting machine.

[0004] Due to the characteristics of the paper filter element in the filter, the cleanliness of the coolant output by the filter will be affected by the cleanliness of the coolant in the coolant tank. The higher the cleanliness of the coolant in the coolant tank, the better the cleanliness of the coolant delivered to the wire cutting machine after being filtered by the filter. However, the cleanliness of the coolant delivered to the wire cutting machine in the existing filtration system is not ideal, resulting in poor stability of the wire cutting machine.

[0005] In response to the above technical problems, the existing patent CN 218188283 U discloses a coolant filtration system for a wire cutting machine tool, including a filter body, a coolant tank, a working pump and a filter are arranged on the filter body, the coolant in the coolant tank is pumped to the filter by the working pump, the outlet of the filter is connected to the wire cutting machine tool, and a drain pipe and a drainage component are also arranged on the filter body, one end of the drain pipe is connected to the outlet of the filter, and the other end of the drain pipe is connected to the drainage component, and the drainage component is connected to the inside of the coolant tank. The coolant filtration system improves the cleanliness of the coolant in the coolant tank through circulating filtration, and the cleanliness of the coolant delivered to the wire cutting machine tool is good, which can improve the stability of the wire cutting machine tool.

[0006] However, the inventors of the present invention believe that, during filtration, a standard amount of coolant is delivered to the machine tool for use after passing through the filter, and the remaining coolant continues to be filtered. However, the internal cleanliness of the standard amount of coolant after the initial filtration cannot be guaranteed, and multiple cycles of filtration can easily cause coolant loss. Utility Model Content

[0007] The utility model aims to provide a coolant filtering system for a wire cutting machine tool, which ensures high cleanliness of the coolant without affecting the normal coolant supply of the machine tool, and is fully automated and controlled, thus saving labor costs.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coolant filtration system for a wire cutting machine tool, the coolant filtration system for the wire cutting machine tool comprising a bracket, a base plate fixed at the bottom of the bracket, a derivation pipe fixed with a clamp on the bracket, one end of the derivation pipe is connected to the coolant tank of the wire cutting machine tool, the other end of the derivation pipe is connected to a discharge pipe, the upper end of the discharge pipe is threadedly connected to a liquid outlet pipe, the liquid outlet pipe is connected to the liquid outlet structure of the wire cutting machine tool, a first filter element is screwed fixed between the discharge pipe and the derivation pipe, an auxiliary filter assembly is also connected to the discharge pipe, and the auxiliary filter assembly is connected to the liquid outlet pipe.

[0009] Furthermore, the export pipe is L-shaped, the discharge pipe is also L-shaped, a flange is fixed at the opposite position of the export pipe and the discharge pipe, a flange is also fixed on the discharge pipe, and the first filter element is threadedly connected between the two flanges.

[0010] Furthermore, the discharge pipe is fixed on the bracket by a clamp.

[0011] Furthermore, the auxiliary filtering assembly includes an electric three-way valve connected to the discharge pipe, the electric three-way valve is connected to a connector away from the discharge pipe end, the connector is fixed to the bracket by a clamp, the connector is fixedly connected to the liquid outlet pipe thread, and also includes an auxiliary pipe connected to the electric three-way valve, and an auxiliary liquid tank is provided below the auxiliary pipe end away from the electric three-way valve.

[0012] Furthermore, a second filter element is fixed inside the auxiliary liquid tank, a support plate is fixed at the upper end of the auxiliary liquid tank, a water pump is bolted on the support plate, a water inlet end of the water pump extends into the auxiliary liquid tank, and a water outlet end is connected to the liquid outlet pipe.

[0013] Furthermore, a transparent pipe section is embedded in the discharge pipe, and an infrared emitter and an infrared sensing photoelectric switch are respectively provided on both sides of the transparent pipe section. The infrared emitter and the infrared sensing photoelectric switch are both fixed on the side of the bracket, and the infrared sensing photoelectric switch is connected in series with the water pump and the electric three-way valve.

[0014] By adopting the above scheme, when the infrared induction photoelectric switch excites an electrical signal, the water pump can be turned on and the discharge pipe and the auxiliary pipe can be connected at the same time.

[0015] The beneficial effects of the utility model are:

[0016] 1. This system ensures the high cleanliness of the coolant without affecting the normal coolant supply of the machine tool. Specifically, by setting up an auxiliary liquid tank, the coolant can be replenished during the filtration process, thereby continuously ensuring the coolant supply.

[0017] 2. Set up infrared transmitters and infrared sensing photoelectric switches to control the operation of the electric three-way valve and water pump, and realize full automation control to save labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a structural schematic diagram of a coolant filtration system for a wire cutting machine tool provided by the utility model;

[0020] Figure 2 The utility model is a schematic diagram of the exploded structure of a liquid outlet pipe of a coolant filtering system of a wire cutting machine tool.

[0021] In the figure: 1. bracket; 2. bottom plate; 3. outlet pipe; 4. discharge pipe; 5. liquid outlet pipe; 6. first filter element; 7. flange; 8. electric three-way valve; 9. connector; 10. auxiliary pipe; 11. auxiliary liquid tank; 12. second filter element; 13. support plate; 14. water pump; 15. transparent pipe section; 16. infrared transmitter; 17. infrared sensing photoelectric switch. DETAILED DESCRIPTION

[0022] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0023] Please also refer to Figure 1 to Figure 2 The coolant filtration system of the wire cutting machine tool according to the embodiment of the utility model will be described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, the coolant filtration system of the wire cutting machine tool includes a bracket 1, a base plate 2 is fixed at the bottom of the bracket 1, a derivation pipe 3 is fixed with a clamp on the bracket 1, one end of the derivation pipe 3 is connected to the coolant tank of the wire cutting machine tool, and the other end of the derivation pipe 3 is connected to a discharge pipe 4, and a liquid outlet pipe 5 is threadedly connected to the upper end of the discharge pipe 4, and the liquid outlet pipe 5 is connected to the liquid outlet structure of the wire cutting machine tool. A first filter element 6 is screwed fixed between the discharge pipe 4 and the derivation pipe 3, and an auxiliary filter component is also connected to the discharge pipe 4, and the auxiliary filter component is communicated with the liquid outlet pipe 5.

[0025] The outlet pipe 3 and the discharge pipe 4 are both L-shaped, and a flange 7 is fixed at the opposite position of the outlet pipe 3 and the discharge pipe 4. A flange 7 is also fixed on the discharge pipe 4. The first filter element 6 is threadedly connected between the two flanges 7. The outlet pipe 3, the discharge pipe 4 and the first filter element 6 are combined into a U-shaped structure. At the same time, the discharge pipe 4 is also fixed to the bracket 1 by a clamp.

[0026] Specifically, the auxiliary filtering component includes an electric three-way valve 8 connected to the discharge pipe 4, the end of the electric three-way valve 8 away from the discharge pipe 4 is connected to a connector 9, the connector 9 is fixed to the bracket 1 through a clamp, the connector 9 is threadedly fixed and connected to the liquid outlet pipe 5, and also includes an auxiliary pipe 10 connected to the electric three-way valve 8, an auxiliary liquid tank 11 is provided below the end of the auxiliary pipe 10 away from the electric three-way valve 8, a second filter element 12 is fixed inside the auxiliary liquid tank 11, a support plate 13 is fixed to the upper end of the auxiliary liquid tank 11, a water pump 14 is bolted on the support plate 13, the water inlet end of the water pump 14 extends into the auxiliary liquid tank 11, and the water outlet end is connected to the liquid outlet pipe 5.

[0027] A transparent pipe section 15 is embedded in the discharge pipe 4, and an infrared emitter 16 and an infrared sensing photoelectric switch 17 are respectively provided on both sides of the transparent pipe section 15. The infrared emitter 16 and the infrared sensing photoelectric switch 17 are both fixed on the side of the bracket 1, and the infrared sensing photoelectric switch 17 is connected in series with the water pump 14 and the electric three-way valve 8.

[0028] Then the above structure is installed in the wire cutting machine. The coolant from the coolant tank inside the wire cutting machine enters through the outlet pipe 3. After being filtered by the first filter element 6, the filtered coolant enters the discharge pipe 4. First, it passes through the transparent pipe section 15 on the discharge pipe 4. At this time, if there is cutting slag inside the coolant, it will block the infrared light emitted by the infrared transmitter 16, and then the amount of infrared light received by the infrared sensing photoelectric switch 17 will be reduced, stimulating an electrical signal. Based on the electrical control of the existing infrared sensing photoelectric switch 17, the electric three-way valve is turned off. 8 connects the discharge pipe 4 and the auxiliary pipe 10, closes the discharge pipe 4 and the connector 9, and the coolant containing cutting slag enters the auxiliary liquid tank 11, and is filtered again through the second filter element 12. The coolant after filtering enters the bottom of the auxiliary liquid tank 11, and at this time, the water pump 14 is synchronously turned on to pump the coolant at the bottom of the auxiliary liquid tank 11 to the liquid outlet pipe 5 for discharge; and there is no cutting slag in the coolant after filtering through the first filter element 6, then the discharge pipe 4 and the connector 9 are in a connected state, and the coolant enters the liquid outlet pipe 5 along the connector 9 for discharge.

[0029] In particular, there is reserved coolant in the auxiliary liquid tank 11, and when the discharge pipe 4 and the connector 9 are closed, the coolant can be replenished into the liquid outlet pipe 5 in real time without affecting the normal operation of the wire cutting machine.

[0030] The first filter element and the second filter element in this embodiment are both activated carbon filter elements, which can be cleaned and replaced. The infrared induction photoelectric switch model is E3F-DS30C4.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coolant filtration system for a wire cutting machine tool, characterized in that: The coolant filtration system of the wire cutting machine tool comprises a bracket (1), a bottom plate (2) is fixed at the bottom of the bracket (1), a guide pipe (3) is fixed to the bracket (1) by a clamp, one end of the guide pipe (3) is connected to the coolant tank of the wire cutting machine tool, the other end of the guide pipe (3) is connected to the discharge pipe (4), the upper end of the discharge pipe (4) is threadedly connected to a liquid outlet pipe (5), the liquid outlet pipe (5) is connected to the liquid outlet structure of the wire cutting machine tool, a first filter core (6) is screwed between the discharge pipe (4) and the guide pipe (3), an auxiliary filter assembly is also connected to the discharge pipe (4), and the auxiliary filter assembly is in communication with the liquid outlet pipe (5).

2. The coolant filtration system for a wire cutting machine tool according to claim 1, characterized in that: The outlet pipe (3) is L-shaped, and the discharge pipe (4) is also L-shaped. A flange (7) is fixed at a position opposite to the outlet pipe (3) and the discharge pipe (4). A flange (7) is also fixed on the discharge pipe (4). The first filter element (6) is threadedly connected between the two flanges (7).

3. The coolant filtration system for a wire cutting machine tool according to claim 1, characterized in that: The discharge pipe (4) is fixed to the bracket (1) via a clamp.

4. The coolant filtration system for a wire cutting machine tool according to claim 1, characterized in that: The auxiliary filtering assembly comprises an electric three-way valve (8) connected to the discharge pipe (4); the end of the electric three-way valve (8) away from the discharge pipe (4) is connected to a connector (9); the connector (9) is fixed to the bracket (1) by a clamp; the connector (9) is threadedly fixedly connected to the liquid outlet pipe (5); and an auxiliary pipe (10) connected to the electric three-way valve (8); an auxiliary liquid tank (11) is provided below the end of the auxiliary pipe (10) away from the electric three-way valve (8).

5. The coolant filtration system for a wire cutting machine tool according to claim 4, characterized in that: A second filter element (12) is fixed inside the auxiliary liquid tank (11), a support plate (13) is fixed on the upper end of the auxiliary liquid tank (11), a water pump (14) is bolted onto the support plate (13), a water inlet end of the water pump (14) extends into the auxiliary liquid tank (11), and a water outlet end is connected to the liquid outlet pipe (5).

6. The coolant filtration system for a wire cutting machine tool according to claim 5, characterized in that: A transparent pipe section (15) is embedded in the discharge pipe (4), and an infrared emitter (16) and an infrared sensing photoelectric switch (17) are respectively provided on both sides of the transparent pipe section (15). The infrared emitter (16) and the infrared sensing photoelectric switch (17) are both fixed on the side of the bracket (1), and the infrared sensing photoelectric switch (17) is connected in series with the water pump (14) and the electric three-way valve (8).

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