Spark oil cooling device of electric spark machine tool

Abstract

The utility model discloses a spark oil cooling device of an electric spark machine tool, which relates to the technical field of spark oil cooling equipment and comprises an oil tank, a heat exchanger is mounted on one side of the oil tank, an oil inlet pipe is arranged at the top end of the heat exchanger, and the bottom end of the heat exchanger is connected with an oil outlet pipe connected with the top end of the oil tank. A liquid outlet pipe is arranged on one side of the oil tank; rotating pipes are connected to the two sides of the inner wall of the oil tank correspondingly, a frame is connected to the surfaces of the rotating pipes, and a filter screen is installed in the frame; and the other end of the frame is connected with a cover body with an inverted V-shaped section. According to the oil filter disclosed by the utility model, the splayed filter screen is arranged, so that the filter area of the splayed filter screen is larger than that of a rectangular tiled filter screen, and meanwhile, when oil is in contact with the filter screen and the like, the frame can drive the filter screen to shake through the torsional spring, the rotating pipe and the like, so that impurities are conveniently shaken off to two sides through the obliquely arranged filter screen, and the filter screen is prevented from being blocked; the subsequent filtering is influenced.

Description

Technical Field

[0001] This utility model relates to the technical field of EDM oil cooling equipment, and in particular to an EDM machine tool EDM oil cooling device. Background Technology

[0002] An electrical discharge machine (EDM) tool, also known as a CNC EDM machine, is a type of electrical discharge machining equipment. During machining, the workpiece is typically processed inside an oil tank filled with cooling oil. Over prolonged operation, the temperature of this oil rises, necessitating cooling. Current EDM oil cooling systems typically use a heat exchanger to transfer the cooling oil to a filter inside the oil tank. However, these filters are usually rectangular and flat, which makes them prone to clogging by impurities in the cooling oil, reducing filtration efficiency and consequently affecting subsequent machining processes. Utility Model Content

[0003] This invention provides a spark oil cooling device for electrical discharge machine tools, which solves the problems in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A spark oil cooling device for an electrical discharge machine tool includes an oil tank, a heat exchanger installed on one side of the oil tank, an oil inlet pipe provided at the top of the heat exchanger, and an oil outlet pipe connected to the top of the oil tank at the bottom of the heat exchanger. A liquid outlet pipe is provided on one side of the oil tank.

[0006] Rotary tubes are connected to both sides of the inner wall of the oil tank, and a frame is connected to the surface of the rotating tubes, and a filter screen is installed inside the frame.

[0007] The other end of the frame is connected to a cover with an inverted "V" shaped cross-section.

[0008] As a further description of the above technical solution:

[0009] The cross-sections of the two filter screens are in the shape of an "eight".

[0010] As a further description of the above technical solution:

[0011] The rotating tube is equipped with a torsion spring and a fixing rod inside.

[0012] As a further description of the above technical solution:

[0013] The bottom of the cover is provided with sliding grooves on both sides, and a slider is slidably connected inside the sliding groove. The top of the slider is connected to a first connecting block, and a movable shaft is connected to one side of the first connecting block. A second connecting block connected to the frame is connected to the surface of the movable shaft.

[0014] As a further description of the above technical solution:

[0015] The oil tank has symmetrical circular plates on both sides, and the inner wall of the circular plates is connected to a rack. The surface of the rack is connected to a gear, and the surface of the gear is connected to a threaded rod that is threaded to the oil tank.

[0016] As a further description of the above technical solution:

[0017] The circular plate has a movable groove at its inner bottom end, and a movable block that is slidably connected to the bottom end of the threaded rod is rotatably connected to the movable groove.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] 1. In this utility model, the filter screen is set in the shape of an "eight", which has a larger filtration area than the rectangular flat filter screen. At the same time, when the oil comes into contact with the filter screen, the frame can drive the filter screen to shake through the torsion spring and rotating tube, so as to shake the impurities to both sides through the inclined filter screen, avoiding clogging of the filter screen and affecting subsequent filtration.

[0020] 2. In this utility model, by rotating the circular plate, multiple threaded rods can be removed from the inside of the fixed rod at one time. This allows the fixed rod, rotating tube, frame, and filter screen inside the oil tank to be removed, facilitating the cleaning of the filter screen and the inside of the oil tank and preventing the accumulation of impurities inside, which would affect the normal use of the subsequent cooling oil. Attached Figure Description

[0021] Figure 1 A schematic diagram of a spark oil cooling device for an electrical discharge machine tool;

[0022] Figure 2 This is a schematic diagram of the internal structure of the fuel tank in this utility model;

[0023] Figure 3 This is a schematic diagram of the bottom part of the cover body in this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the rotating tube in this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the circular plate in this utility model.

[0026] Legend:

[0027] 1. Oil tank; 2. Heat exchanger; 3. Oil inlet pipe; 4. Oil outlet pipe; 5. Liquid outlet pipe; 6. Rotating pipe; 7. Frame; 8. Filter screen; 9. Cover; 10. Torsion spring; 11. Fixed rod; 12. Slide groove; 13. Sliding block; 14. First connecting block; 15. Movable shaft; 16. Second connecting block; 17. Circular plate; 18. Rack; 19. Gear; 20. Threaded rod; 21. Moving groove; 22. Moving block. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1-5 An EDM oil cooling device includes an oil tank 1, a heat exchanger 2 installed on one side of the oil tank 1, an oil inlet pipe 3 at the top of the heat exchanger 2, and an oil outlet pipe 4 connected to the top of the oil tank 1 at the bottom of the heat exchanger 2. An outlet pipe 5 is provided on one side of the oil tank 1. Rotary pipes 6 are connected to both sides of the inner wall of the oil tank 1, and a frame 7 is connected to the surface of the rotating pipe 6. A filter screen 8 is installed inside the frame 7. A cover 9 with an inverted "V" shaped cross-section is connected to the other end of the frame 7. The cooling oil after heat exchange through the heat exchanger 2 enters the interior of the oil tank 1, first contacts the cover 9 and impacts it, which causes the cover 9 to drive the frame 7 and the filter screen 8 on both sides to rotate through the rotating pipe 6, so as to shake off the impurities on the surface of the filter screen 8 to both sides to avoid clogging. At the same time, the torsion spring 10 inside the rotating pipe 6 can reset the filter screen 8. The output of the cooling oil is driven by a pump (not shown).

[0030] Furthermore, the two filter screens 8 have an "eight" shaped cross-section. Compared with the rectangular flat filter screen 8, the "eight" shaped cross-section filter screen 8 has a larger filtration area and is less prone to clogging. At the same time, the "eight" shaped cross-section filter screen 8 is set at an angle, which makes it easier for impurities on its surface to slide to both sides.

[0031] Furthermore, the rotating tube 6 is equipped with a torsion spring 10 and a fixing rod 11. The torsion spring 10 facilitates the repositioning of the rotating tube 6, the frame 7, and the filter screen 8.

[0032] Furthermore, grooves 12 are respectively provided on both sides of the bottom end of the cover 9, and sliders 13 are slidably connected inside the grooves 12. The top of the sliders 13 is connected to a first connecting block 14, and a movable shaft 15 is connected to one side of the first connecting block 14. A second connecting block 16 connected to the frame 7 is connected to the surface of the movable shaft 15. The grooves 12, sliders 13, movable shaft 15 and connecting blocks are designed to allow the frame 7 to drive the filter screen 8 to rotate through the rotating tube 6 when the cover 9 is impacted, so as to shake off the impurities on the surface of the filter screen 8 to both sides.

[0033] Furthermore, circular plates 17 are symmetrically arranged on both sides of the oil tank 1, and a rack 18 is connected to the inner wall of the circular plate 17. A gear 19 is connected to the surface of the rack 18, and a threaded rod 20 that is threadedly connected to the oil tank 1 is connected to the surface of the gear 19. The fixed rod 11 and the surface of the oil tank 1 are both provided with multiple threaded holes connected to the threaded rod 20. By rotating the circular plate 17, the rack 18 on its inner wall can move on the surface of the gear 19, so that the gear 19 can drive the threaded rod 20 to rotate and move inside the threaded hole, so that the threaded rod 20 can be turned out from the threaded hole at one end of the fixed rod 11. This allows the rotating tube 6, frame 7, and filter screen 8 to be disassembled for easy cleaning.

[0034] Furthermore, a movable groove 21 is provided at the bottom of the inner side of the circular plate 17, and a movable block 22 is slidably connected inside the movable groove 21 and rotatably connected to the bottom of the threaded rod 20. This facilitates the circular plate 17 to move at the top of the threaded rod 20 through the movable groove 21 and the movable block 22.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An electric spark machine tool spark oil cooling device comprising an oil tank (1), characterized in that: The side of the oil tank (1) is provided with a heat exchanger (2), and the top end of the heat exchanger (2) is provided with an oil inlet pipe (3), and the bottom end of the heat exchanger (2) is connected with an oil outlet pipe (4) connected with the top end of the oil tank (1), and the side of the oil tank (1) is provided with an oil outlet pipe (5); The inner wall of the oil tank (1) is connected with rotating pipes (6) on both sides, the surface of the rotating pipe (6) is connected with a frame (7), and the inside of the frame (7) is provided with a filter screen (8); The other end of the frame (7) is connected with a cover (9) with a reverse "V" shaped cross section.

2. An electrical discharge machine spark oil cooling device according to claim 1, characterized in that: The two filter screens (8) are "eight" shaped in cross section.

3. An electrical discharge machine spark oil cooling device according to claim 1, characterized in that: The inside of the rotating pipe (6) is provided with a torsion spring (10) and a fixed rod (11).

4. An electrical discharge machine spark oil cooling device according to claim 1, characterized in that: The bottom end of the cover (9) is provided with a sliding groove (12) on both sides, and the inside of the sliding groove (12) is slidably connected with a sliding block (13), the top end of the sliding block (13) is connected with a first connecting block (14), one side of the first connecting block (14) is connected with a movable shaft (15), and the surface of the movable shaft (15) is connected with a second connecting block (16) connected with the frame (7).

5. An electrical discharge machine spark oil cooling device according to claim 1, characterized in that: The two sides of the oil tank (1) are symmetrically provided with circular plates (17), and the inner wall of the circular plate (17) is connected with a rack (18), the surface of the rack (18) is connected with a gear (19), and the surface of the gear (19) is connected with a threaded rod (20) in screw connection with the oil tank (1).

6. The spark oil cooling device of the electric spark machine tool according to claim 5, Characterized in that: the inside bottom end of the circular plate (17) is provided with a moving groove (21), and the inside of the moving groove (21) is slidably connected with a moving block (22) rotatably connected with the bottom end of the threaded rod (20).

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