Integrated oil groove structure of electric spark forming machine

Abstract

The utility model discloses an electric spark forming machine integrated oil groove structure which comprises a groove body, a carrying table, a piston, a cylinder sleeve and an oil pump, the carrying table is horizontally arranged in the groove body, two inclined plates located below the two sides of the carrying table are symmetrically arranged in the groove body, the edges of the inclined plates are welded and fixed to the inner wall of the groove body, and the oil pump is arranged on the carrying table. The oil pump is arranged in the groove body and located below the back face of one inclined plate, a pipe connector connected with an oil inlet of the oil pump is arranged on the back face of the inclined plate, an oil outlet of the oil pump is provided with a circulating oil pipe extending to the position above the inclined plate, and the cylinder sleeve horizontally extends to the inner side of the groove body from the outer side of the groove body and is located between the two inclined plates. The piston is telescopically arranged in the cylinder sleeve. According to the integrated oil groove structure of the electric spark forming machine, an oil tank does not need to be additionally arranged, the occupied area is reduced, and the liquid level height of working liquid in the groove body is accurately controlled so as to adapt to workpieces of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of electrical discharge molding machine technology, and in particular to an integrated oil tank structure for an electrical discharge molding machine. Background Technology

[0002] Electrical discharge machining (EDM) machines utilize the electro-corrosion phenomenon that occurs during pulsed spark discharge between electrodes and workpieces to achieve the required machining process. The electrodes and workpiece are connected to the two poles of the pulse power supply and are typically immersed in a highly insulating working fluid, such as kerosene or mineral oil, for insulation and cooling.

[0003] In electrical discharge machining (EDM) machines, an oil tank is typically installed. The workpiece is placed in the oil tank, and the corresponding working fluid is injected before the electrode is moved to perform the machining. Controlling the oil level in the tank is crucial in EDM, directly affecting processing quality and efficiency. The working fluid not only serves for cooling, cleaning, and electrolysis, but also ensures the appropriate distance between the electrode and the workpiece by controlling the oil level; a height of 2–4 mm above the workpiece is generally recommended.

[0004] In addition, in order to achieve filtration and level control of the working fluid in the oil tank, a separate filter box or oil tank is required. In the prior art, the utility model patent with application number 2023235941734 discloses an angle machining fixture for an EDM drilling machine. A water pump is installed inside the filter box, and the output end of the water pump is connected to the machining box through a delivery pipe. The machining box is connected to the filter box through a return pipe to form a circulation system. However, the size is relatively large, and the liquid level in the machining box is difficult to control, so improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide an integrated oil tank structure for an EDM machine, which reduces the floor space and improves the accuracy of liquid level control.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An integrated oil tank structure for an EDM (Electrical Discharge Machining) machine includes: a tank body, a platform, a piston, a cylinder liner, and an oil pump. The platform is horizontally positioned in the tank body. Two inclined plates are symmetrically arranged below the platform on both sides of the tank body. The edges of the inclined plates are welded and fixed to the inner wall of the tank body. The oil pump is located in the tank body and below the back of one of the inclined plates. A pipe joint connected to the oil inlet of the oil pump is provided on the back of the inclined plate. A circulating oil pipe extending to the top of the inclined plate is provided at the oil outlet of the oil pump. The cylinder liner extends horizontally from the outside of the tank body to the inside of the tank body and is located between the two inclined plates. The piston is retractably mounted in the cylinder liner.

[0008] The two inclined plates are arranged in a V-shape to form a flow channel.

[0009] The inclined plate has a filter on its front side that is connected to a pipe joint.

[0010] The tank has an oil distribution pipe on its inner wall that is located above the inclined plate and connected to the circulating oil pipe. The bottom of the oil distribution pipe is provided with oil injection holes at intervals.

[0011] The bottom of the tank is equipped with a drain valve that communicates with the guide channel.

[0012] It also includes a controller, and a liquid level sensor with a downward-pointing inclined plate is installed on the top of the tank. The liquid level sensor is connected to the controller for signal transmission.

[0013] The tank body is provided with a telescopic drive mechanism connected to the piston on its outer side, and the controller is connected to the telescopic drive mechanism to control the telescopic movement.

[0014] The telescopic drive mechanism is a hydraulic cylinder or an electric telescopic rod.

[0015] The beneficial effects of this utility model are as follows: An integrated oil tank structure for an EDM machine eliminates the need for an additional oil tank. The integrated structure reduces the floor space required. By extending and retracting the piston in the cylinder liner, part of the working fluid in the tank is drawn in or pushed out, changing the liquid level of the working fluid in the tank to accommodate workpieces of different volumes. This ensures that the liquid level of the working fluid is 2-4 mm higher than the workpiece, thus improving control accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 yes Figure 1 A sectional view along the AA direction. Detailed Implementation

[0018] The following is combined Figures 1-2 The technical solution of this utility model will be further illustrated through specific embodiments.

[0019] like Figure 1 and Figure 2 The integrated oil tank structure of the EDM forming machine shown includes: tank body 1, platform 7, piston 3, cylinder liner 2, oil pump 9 and controller. Tank body 1 adopts a rectangular hollow shell structure with an open top, which can be made by welding steel plates and has high strength.

[0020] The platform 7 is horizontally positioned in the tank 1 to facilitate the installation of fixtures and the fixation of workpieces. Two inclined plates 4 are symmetrically arranged below the platform 7 on both sides of the tank 1. The edges of the inclined plates 4 are welded and fixed to the inner wall of the tank 1, resulting in a stable structure and good sealing performance.

[0021] In this embodiment, the two inclined plates 4 are arranged in a V-shape to form a guide channel 15, which facilitates the convergence of the working fluid in the guide channel 15 and the concentrated sedimentation of impurities. A drain valve 5 connected to the guide channel 15 is provided at the bottom of the tank 1. The drain valve 5 can be opened to discharge the working fluid, which is beneficial for cleaning the tank 1 and replacing the working fluid.

[0022] The oil pump 9 is installed in the tank 1 and located below the back of one of the inclined plates 4, eliminating the need for an additional oil tank and improving space utilization. A pipe joint 8 connected to the oil inlet of the oil pump 9 is provided on the back of the inclined plate 4, and a filter 14 connected to the pipe joint 8 is provided on the front of the inclined plate 4. The working fluid in the guide channel 15 is filtered by the filter 14 before entering the oil pump 9.

[0023] A circulating oil pipe 10 extending above the inclined plate 4 is provided at the oil outlet of the oil pump 9. A distribution oil pipe 13 located above the inclined plate 4 and connected to the circulating oil pipe 10 is provided on the inner wall of the tank body 1. The bottom of the distribution oil pipe 13 is provided with oil spray holes 11 at intervals. The working fluid is sent into the distribution oil pipe 13 through the oil pump 9 and the circulating oil pipe 10, and then flows out evenly from all sides of the workpiece through the oil spray holes 11, reducing the fluctuation of the liquid surface.

[0024] like Figure 1 As shown, a liquid level sensor 12 pointing downwards towards the inclined plate is installed at the top of the tank 1. The liquid level sensor 12 is connected to the controller for signal transmission to monitor the liquid level. The controller can share the controller of the EDM machine to reduce costs, or a separate PLC controller can be installed.

[0025] like Figure 2 As shown, the cylinder liner 2 extends horizontally from the outside of the tank 1 to the inside of the tank 1 and is located between two inclined plates 4. The piston 3 is telescopically disposed in the cylinder liner 2. The outer circle of the piston 3 is relatively large. By extending and retracting the piston 3 in the cylinder liner 2, part of the working fluid in the tank 1 is sucked in or pushed out, changing the liquid level of the working fluid in the tank 1 to adapt to workpieces of different volumes on the platform 7, ensuring that the liquid level of the working fluid is 2 to 4 mm higher than the workpiece, thereby improving processing efficiency.

[0026] A telescopic drive mechanism 6, connected to the piston, is provided on the outside of the tank 1. The controller is connected to the telescopic drive mechanism 6 for telescopic control. In this embodiment, the telescopic drive mechanism 6 is a hydraulic cylinder or an electric telescopic rod, allowing for flexible telescopic movement. The operator sets the target liquid level height based on the workpiece volume. The controller collects the real-time liquid level height through the liquid level sensor 12, calculates the displacement of the piston 3, and then performs the telescopic drive mechanism 6 to extend or retract, improving the accuracy of liquid level control.

[0027] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. An integrated oil tank structure of an electric discharge machine, characterized by comprising: The utility model relates to a kind of oil tank, including: Slot, carrier, piston, cylinder sleeve and oil pump, the carrier is horizontally arranged in slot, two inclined plates are symmetrically arranged in the slot, the edge of the inclined plate is welded and fixed with the inner wall of slot, the oil pump is arranged in slot and located below the back of one inclined plate, the back of the inclined plate is provided with the pipe joint connected with the oil inlet of oil pump, the oil outlet of oil pump is provided with circulating oil pipe extending above the inclined plate, the cylinder sleeve extends horizontally from the outside of slot to the inside of slot and is located between two inclined plates, the piston is telescopically arranged in cylinder sleeve.

2. The integrated oil groove structure of the electro-discharge machine according to claim 1, wherein Two inclined plates are V-shaped to form a flow guide groove.

3. The integrated oil groove structure of the spark EDM machine according to claim 1, characterized by, The front of the inclined plate is provided with a filter connected with the pipe joint.

4. The integrated oil groove structure of the spark EDM machine according to claim 1, wherein The inner wall of the slot is provided with a circle of oil distribution pipe above the inclined plate and connected with the circulating oil pipe, and the bottom of the oil distribution pipe is provided with oil injection holes at intervals.

5. The EDM machine integrated oil sump structure of claim 2, wherein, The bottom of the slot is provided with a sewage valve communicating with the flow guide groove.

6. The integrated oil groove structure of the spark EDM machine according to claim 1, wherein It also includes a controller, the top of the slot is provided with a liquid level sensor pointing downward to the inclined plate, the liquid level sensor is connected with the controller for signal transmission.

7. The integrated oil groove structure of the spark EDM machine according to claim 6, wherein The outside of the slot is provided with a telescopic drive mechanism connected with the piston, the controller is connected with the telescopic drive mechanism for telescopic control.

8. The integrated oil groove structure of the electro-discharge machine according to claim 7, wherein The telescopic drive mechanism uses oil cylinder or electric telescopic rod.

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