Short arc milling liquid conductivity regulation and control system

Abstract

The utility model discloses a short arc milling liquid conductivity regulation and control system, which belongs to the technical field of electrical discharge machining, and comprises a water tank, an air compressor, a liquid recovery pool and a numerical control machine tool, and electrolyte is arranged in the water tank. The air compressor sucks air in the environment, the air is pressurized to generate compressed air, the compressed air is fed into the pipeline, the compressed air is converged with the electrolyte at the position, above the tool electrode, of the pipeline, flowing of the electrolyte is accelerated, and the conductivity sensor can monitor the conductivity of the cutting fluid in real time. The numerical control electric cabinet automatically adjusts the components of the cutting fluid according to machining requirements so as to adjust the conductivity of the cutting fluid, the conductivity of the cutting fluid is monitored in real time, the components of the cutting fluid are automatically adjusted according to the machining requirements, the stability and efficiency of the short-arc machining process are ensured, and the method is suitable for short-arc machining scenes needing high-precision cutting fluid management.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of discharge machining, specifically to short arc milling fluid conductivity control system. BACKGROUND

[0002] Short arc machining is a kind of discharge machining technology. It refers to the use of the tool electrode and the workpiece between the generated excited intermittent arc discharge group to remove the conductive metal material in the mixed medium with certain dielectric strength. In this technology, the high temperature and high energy generated by arc discharge act on the workpiece surface, making the conductive metal material be quickly melted and evaporated. Compared with the traditional mechanical processing method, its processing efficiency is higher, and it is suitable for complex shape processing of difficult-to-machine materials. However, a large amount of heat generated during processing can easily lead to tool wear and uncontrolled processing area temperature, thereby affecting the processing precision and surface quality.

[0003] To alleviate the above problems, cutting fluid is widely used in short arc machining process, which is used for cooling tool and workpiece, lubricating contact surface and removing chips and impurities. The conductivity of cutting fluid is an important parameter of its performance, which not only affects the conductivity of cutting fluid, but also directly affects the stability of arc discharge. Too high conductivity may cause short circuit in processing gap, reducing processing precision; while too low conductivity will weaken the stability and efficiency of arc discharge, leading to the decline of processing surface quality. Therefore, reasonable adjustment of the conductivity of cutting fluid is of great significance to the stability and effect of short arc machining process.

[0004] During processing, cutting fluid is circulated to the processing area through fluid pipeline and continuously participates in cooling, lubrication and chip removal. However, in the prior art, the management of cutting fluid conductivity usually depends on manual detection or regular replacement, which has poor real-time performance and low control precision, and is difficult to meet the requirements of modern short arc machining for high efficiency and intelligentization. Especially in complex processing scene, the conductivity of cutting fluid may fluctuate due to changes in processing load and environment, further increasing the difficulty of stable control. And the conductivity of the recovered cutting fluid is not detected, so the conductivity of the cutting fluid cannot be adjusted in time. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving one of the technical problems existing in the prior art.

[0006] Therefore, one purpose of the utility model is to propose short arc milling fluid conductivity control system, which is suitable for short arc machining scene requiring high-precision cutting fluid management, and has important research significance and application value.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: Short arc milling fluid conductivity control system, including water tank, air compressor, liquid recovery pool and numerical control machine tool, the inside of water tank is equipped with electrolyte, the inside installation of water tank has conductivity sensor, the outside of water tank is provided with second water pump, third water pump and cutting fluid barrel, one end of second water pump and one end of third water pump are linked with water tank, the other end of second water pump is linked with cutting fluid barrel; The inner bottom of the liquid recovery pool is provided with a workbench, and two clamps are fixedly connected to the workbench, a workpiece is arranged between the two clamps, and the numerical control machine tool is arranged above the workbench; The tool electrode is connected to the numerical control machine tool through a numerical control tool holder; The output end of the air compressor is connected to the four-way connector through a pipeline, the output end of the first water pump is connected to the four-way connector through a pipeline, the input end of the first water pump is connected to the water tank, and the four-way connector is connected to the cutting fluid spray head and the tool electrode.

[0008] Preferably, a return pump is arranged between the water tank and the liquid recovery pool, the input end of the return pump is connected to the liquid recovery pool, and the output end of the return pump is connected to the water tank.

[0009] Preferably, a numerical control cabinet is arranged outside the liquid recovery pool, and the first water pump, the air compressor, the conductivity sensor, the second water pump, the third water pump and the numerical control machine tool are electrically connected to the numerical control cabinet.

[0010] Preferably, a power supply device is arranged outside the numerical control cabinet, the positive electrode of the power supply device is electrically connected to the workpiece, and the negative electrode of the power supply device is electrically connected to the tool electrode.

[0011] Preferably, a pressure gauge is arranged outside the four-way connector.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] In use, the pump pumps the electrolyte from the water tank into the pipeline, the air compressor sucks the air in the environment to generate compressed air and sends the compressed air into the pipeline, the pipeline above the tool electrode is combined with the electrolyte to accelerate the flow of the electrolyte, the conductivity sensor can monitor the conductivity of the cutting fluid in real time, the other end of the second water pump is connected to the cutting fluid barrel, the numerical control cabinet automatically adjusts the composition of the cutting fluid according to the processing requirement to adjust the conductivity of the cutting fluid, realizes real-time monitoring of the conductivity of the cutting fluid and automatic adjustment of the composition of the cutting fluid according to the processing requirement, ensures the stability and efficiency of the short arc processing process, and is suitable for short arc processing scenes requiring high-precision cutting fluid management. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of the short arc milling fluid conductivity regulation system.

[0015] In the figure: 1, water tank; 2, electrolyte; 3, first water pump; 4, air compressor; 5, pressure gauge; 7, reflux pump; 8, clamp; 9, cutting fluid spray head; 10, numerical control tool holder; 11, tool electrode; 12, workpiece; 13, workbench; 14, liquid recovery tank; 15, power supply; 16, numerical control electric cabinet; 17, conductivity sensor; 18, second water pump; 19, third water pump; 20, cutting fluid barrel; 21, numerical control machine tool; 22, four-way connector. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0017] Please refer to Figure 1 The embodiment of the present application provides a short arc milling fluid conductivity regulation system, which comprises a water tank 1, an air compressor 4, a liquid recovery tank 14 and a numerical control machine tool 21. The inside of the water tank 1 is provided with an electrolyte 2. The inside of the water tank 1 is provided with a conductivity sensor 17. The outside of the water tank 1 is provided with a second water pump 18, a third water pump 19 and a cutting fluid barrel 20. One end of the second water pump 18 and one end of the third water pump 19 are connected with the water tank 1 in communication. The other end of the second water pump 18 is connected with the cutting fluid barrel 20 in communication. The inner bottom of the liquid recovery tank 14 is provided with a workbench 13. The workbench 13 is fixedly connected with two clamps 8. The two clamps 8 are provided with a workpiece 12 therebetween. The numerical control machine tool 21 is arranged above the workbench 13. The numerical control machine tool 21 is connected with a tool electrode 11 through a numerical control tool holder 10. The output end of the air compressor 4 is connected with a four-way connector 22 in communication through a pipeline. The output end of the first water pump 3 is connected with the four-way connector 22 in communication through a pipeline. The input end of the first water pump 3 is connected with the water tank 1 in communication. The four-way connector 22 is connected with the cutting fluid spray head 9 and the tool electrode 11 in communication.

[0018] The reflux pump 7 is arranged between the water tank 1 and the liquid recovery tank 14. The input end of the reflux pump 7 is connected with the liquid recovery tank 14 in communication. The output end of the reflux pump 7 is connected with the water tank 1 in communication.

[0019] The numerical control electric cabinet 16 is arranged outside the liquid recovery tank 14. The first water pump 3, the air compressor 4, the conductivity sensor 17, the second water pump 18, the third water pump 19 and the numerical control machine tool 21 are electrically connected with the numerical control electric cabinet 16.

[0020] The power supply 15 is electrically connected with the workpiece 12 and the tool electrode 11.

[0021] The pressure gauge 5 is installed on the outside of the four-way connector 22.

[0022] In use, the pump 3 pumps the electrolyte 2 from the water tank 1 into the pipeline, the air compressor 4 sucks the air in the environment to generate compressed air and sends it into the pipeline, the pipeline above the tool electrode 11 is combined with the electrolyte 2 to accelerate the flow of the electrolyte 2, the tool electrode 11 is punched into the machining gap through the inner hole, the short arc machining and the electrochemical machining medium are provided, and the etching products are punched out of the gap, the positive electrode of the power supply 15 is connected with the workpiece 12, the negative electrode is connected with the tool electrode 11, the voltage required for machining is provided, the workpiece 12 is fixed on the workbench 13, the numerical control cabinet 16 controls the rotation of the tool electrode 11 and feeds to the side of the workpiece 12 at a uniform speed, the synchronous short arc machining and electrochemical machining are realized, the conductivity sensor 17 can monitor the conductivity of the cutting fluid in real time, the other end of the second water pump 18 is connected with the cutting fluid barrel 20, when the conductivity of the electrolyte 2 in the water tank 1 is high, new cutting fluid is added into the water tank 1, one end of the third water pump 19 is connected with the water supply pipe, when the conductivity of the electrolyte 2 in the water tank 1 is low, water is added into the water tank 1, and the numerical control cabinet 16 automatically adjusts the cutting fluid composition according to the machining requirement.

[0023] The parts not involved in the utility model are the same as the prior art or can be realized by using the prior art. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A short-arc milling fluid conductivity control system, characterized in that: The system includes a water tank (1), an air compressor (4), a liquid recovery tank (14), and a CNC machine tool (21). The water tank (1) contains an electrolyte (2) and a conductivity sensor (17). The water tank (1) is equipped with a second water pump (18), a third water pump (19), and a cutting fluid tank (20) on the outside. One end of the second water pump (18) and one end of the third water pump (19) are connected to the water tank (1), and the other end of the second water pump (18) is connected to the cutting fluid tank (20). A workbench (13) is installed at the bottom of the liquid recovery tank (14). Two clamps (8) are fixedly connected to the workbench (13). A workpiece (12) is placed between the two clamps (8). A CNC machine tool (21) is located above the workbench (13). The CNC machine tool (21) is connected to a tool electrode (11) through a CNC tool holder (10). The output end of the air compressor (4) is connected to the four-way connector (22) through a pipe, the output end of the first water pump (3) is connected to the four-way connector (22) through a pipe, the input end of the first water pump (3) is connected to the water tank (1), and the four-way connector (22) is connected to the cutting fluid nozzle (9) and the tool electrode (11).

2. The short arc milling fluid conductivity control system according to claim 1, characterized in that: A reflux pump (7) is provided between the water tank (1) and the liquid recovery pool (14). The input end of the reflux pump (7) is connected to the liquid recovery pool (14), and the output end of the reflux pump (7) is connected to the water tank (1).

3. The short arc milling fluid conductivity control system according to claim 2, characterized in that: The liquid recovery tank (14) is equipped with a CNC cabinet (16) on its exterior. The first water pump (3), the air compressor (4), the conductivity sensor (17), the second water pump (18), the third water pump (19) and the CNC machine tool (21) are all electrically connected to the CNC cabinet (16).

4. The short arc milling fluid conductivity control system according to claim 3, characterized in that: The CNC cabinet (16) is equipped with a power supply (15) on its exterior. The positive terminal of the power supply (15) is electrically connected to the workpiece (12), and the negative terminal of the power supply (15) is electrically connected to the tool electrode (11).

5. The short arc milling fluid conductivity control system according to claim 1, characterized in that: A pressure gauge (5) is installed on the outside of the four-way connector (22).

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