A filtering device for the working fluid of an electric discharge machine

Abstract

The utility model discloses a kind of filtering devices of electric spark machine tool working fluid, filter box upper surface is provided with box cover, the bottom of filter box one end is provided with liquid outlet, box cover is away from the liquid outlet one end and is provided with liquid inlet, filter box inside is provided with several partitions, several sedimentation cavities are formed in filter box inside by partition, frame is set in the sedimentation cavity below liquid inlet, filter screen is set in frame, each partition upper end is provided with overflow port, from the partition height gradually reducing of the liquid outlet one end away to the liquid outlet one end close, each partition is away from the liquid outlet one end and is provided with L type supporting plate, L type supporting plate is provided with strip magnet in, the utility model structure is reasonable, each partition is located at overflow port and is provided with L type supporting plate, L type supporting plate is provided with strip magnet in, working fluid is also through strip magnet and carries out the adsorption of ferromagnetic particle when overflowing through multiple partitions, greatly improve filtering effect, simultaneously, without again carrying out secondary filtration, efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of machinery, and more particularly to electrical discharge machine tools, specifically a filtration device for the working fluid of an electrical discharge machine tool. Background Technology

[0002] In electrical discharge machining, the working fluid serves as an insulating and breakdown medium, a cooling medium, a chip removal and cleaning medium, and a deionization medium. If metal particles in the working fluid cannot be filtered out in a timely and effective manner, it will lead to low machining efficiency and unstable machining accuracy.

[0003] Currently, the filter-type filtration device for EDM machine tool working fluid uses a filter screen. Although it can trap most particles, even smaller particles are still difficult to filter through the filter screen. Although further fine filtration can be carried out through a filter element, the efficiency is greatly reduced. Therefore, there is an urgent need for an improved technology to solve the above-mentioned problems in the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide a filtration device for the working fluid of an electrical discharge machine tool, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a filtration device for working fluid in an EDM machine tool, comprising a filter box, a box cover, partitions, a filter screen, an L-shaped support plate, and a bar magnet. The filter box has a box cover on its upper surface, an outlet at the bottom of one end of the filter box, and an inlet at the end of the box cover away from the outlet. The filter box contains several partitions, forming several sedimentation chambers. A support plate is provided on each side of the sedimentation chamber located below the inlet. The filter screen is placed within a frame, and the two ends of the frame are supported on the support plates and fastened together with bolts. Each partition has an overflow port at its upper end. The height of the partition gradually decreases from the end away from the outlet to the end closer to the outlet. Each partition has an L-shaped support plate at the end away from the outlet, and a bar magnet is installed inside each L-shaped support plate.

[0006] Preferably, in the filtration device for EDM machine tool working fluid provided by this utility model, the upper surface of the bar magnet is flush with the height of the corresponding overflow port.

[0007] Preferably, the present invention provides a filtration device for working fluid of an EDM machine tool, wherein the cover has an opening at each sedimentation chamber, and a cover plate is hinged to the upper surface of the cover at each opening, and the cover plate is provided with a first handle.

[0008] Preferably, the present invention provides a filtration device for working fluid of an EDM machine tool, wherein the cover is fastened to the filter box by bolts.

[0009] Preferably, the present invention provides a filtration device for working fluid of an EDM machine tool, wherein the bottom of the filter box is provided with a support leg.

[0010] Preferably, the present invention provides a filtration device for working fluid of an EDM machine tool, wherein the filter box is provided with a slag discharge port on its side and at the bottom of each sedimentation chamber.

[0011] Preferably, the present invention provides a filtration device for working fluid of an EDM machine tool, wherein the bottom of the L-shaped support plate is provided with a strip-shaped through groove.

[0012] Preferably, the present invention provides a filtration device for working fluid of an EDM machine tool, wherein a second handle is provided on both sides of the frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) The filter box is equipped with multiple partitions and forms multiple sedimentation chambers. The partitions are arranged in order of overflow port height. Each partition is equipped with an L-shaped support plate at the overflow port. Each L-shaped support plate is equipped with a bar magnet. When the working liquid overflows through multiple partitions, it is also adsorbed by the bar magnet, which greatly improves the filtration effect. At the same time, there is no need for secondary filtration, which greatly improves efficiency.

[0015] (2) A frame with a filter screen is set in the sedimentation chamber below the liquid inlet through two support plates. The filter screen can pre-filter the larger impurities that are carried along with the working liquid when it is discharged, which facilitates the collection of larger impurities. Attached Figure Description

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

[0017] Figure 2 This is a top view of the structure of this utility model (the lid is not shown).

[0018] Figure 3 This is a top view of the filter box structure.

[0019] Figure 4 For the appendix Figure 1 Enlarged structural diagram of point A in the middle.

[0020] In the diagram: 1. Filter box; 2. Cover; 3. Partition; 4. Filter screen; 5. L-shaped support plate; 6. Bar magnet; 7. Liquid outlet; 8. Liquid inlet; 9. Sedimentation chamber; 10. Frame; 11. Support plate; 12. Overflow port; 13. Opening; 14. Cover plate; 15. First handle; 16. Support leg; 17. Slag discharge port; 18. Strip channel; 19. Second handle. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Please see Figure 1-4This utility model provides a technical solution: a filtration device for working fluid of an EDM machine tool, including a filter box 1, a box cover 2, partitions 3, a filter screen 4, an L-shaped support plate 5, and a bar magnet 6. The bottom of the filter box 1 is provided with support legs 16 to achieve overall elevation and support. The upper surface of the filter box 1 is provided with a box cover 2, which is fastened to the filter box 1 by bolts to facilitate connection and disassembly of the box cover 2 and the filter box 1, thereby enabling the placement and removal of the frame 10 with the filter screen 4. A liquid outlet 7 is provided at the bottom of one end of the filter box 1, and a liquid inlet 8 is provided at the end of the box cover 2 away from the liquid outlet 7. Several partitions 3 are provided inside the filter box 1, forming several sedimentation chambers 9. A slag discharge port 17 is provided on the side of the filter box 1 and at the bottom of each sedimentation chamber 9 to discharge the settled waste slag. Below the liquid inlet 8... A support plate 11 is provided on each side of the sedimentation chamber 9. The filter screen 4 is set inside the frame 10. The two ends of the frame 10 are supported on the support plate 11 and fastened together with bolts. The two sides of the frame 10 are provided with a second handle 19 for easy removal. Each partition 3 is provided with an overflow port 12 at the top. The height of the partition 3 gradually decreases from the end away from the liquid outlet 7 to the end closer to the liquid outlet 7. Each partition 3 is provided with an L-shaped support plate 5 at the end away from the liquid outlet 7. A bar magnet 6 is provided in the L-shaped support plate 5. The upper surface of the bar magnet 6 is flush with the height of the corresponding overflow port 12 to ensure that the ferromagnetic particles carried by the working fluid through the overflow port 12 can be successfully attracted by the bar magnet 6. A strip groove 18 is opened at the bottom of the L-shaped support plate 5 so that the bar magnet 6 can be pushed out of the L-shaped support plate 5 by means of tools or hands through the strip groove 18.

[0024] The cover 2 has openings 13 at each sedimentation chamber 9. The upper surface of the cover 2 is hinged with cover plates 14 at each opening 13. The cover plates 14 are equipped with first handles 15. The cover plates 14 are used to view the inside of each sedimentation chamber 9 and the adsorption of the bar magnets 6. They are also convenient for cleaning after slag discharge. The cover plates 14 located above the filter screen 4 can be opened to clean the impurities on the filter screen 4.

[0025] Installation method and operating principle: First, weld multiple partitions 3 inside the filter box 1. The overflow ports 12 of the partitions 3 have different heights, gradually decreasing from the end furthest from the outlet 7 to the end closest to the outlet 7. Each partition 3 has an L-shaped support plate 5 welded to the end furthest from the outlet 7. A support plate 11 is welded to the partition 3 furthest from the outlet 7, and a support plate 11 is also welded to the inner wall of the filter box 1 furthest from the outlet 7. Next, place a bar magnet 6 (which can be a single piece or composed of multiple pieces) into the L-shaped support plate 5. The bar magnet 6 is secured within the L-shaped support plate 5 by the friction between the L-shaped support plate 5 and the corresponding partition 3. At this point, the upper surface of the bar magnet 6 is at the same height as the corresponding overflow port 12. Finally, the frame 10 with the filter screen 4 is placed into the first sedimentation chamber 9 and supported on the support plates 11 at both ends. The frame 10 is then fixed to the support plates 11 using bolts. Next, the cover 2 is bolted onto the upper surface of the filter box 1, completing the installation. Before use, each slag discharge port 17 is connected to a slag discharge pipe via a valve, the liquid inlet 8 is connected to the working tank of the EDM machine via a pipe, and the liquid outlet 7 is connected to the working fluid storage tank via a pump and a return pipe. In use, the working fluid enters the filter box 1 through the inlet 8. First, it passes through the filter screen 4 to filter out larger impurities, such as detached sealing ring fragments, large metal particles, flocculent matter, etc. Then, it overflows through the overflow port 12 of the multi-baffle 3. During the overflow process, ferromagnetic particles are adsorbed by the bar magnet 6. After sedimentation in multiple sedimentation chambers 9, the working fluid flows back to the working fluid storage tank from the outlet 7. When the bar magnet 6 adsorbs too many ferromagnetic particles, the bar magnet 6 is pushed out and cleaned by using a tool through the bar groove 18 at the bottom of the L-shaped support plate 5. When too many impurities settle at the bottom of the sedimentation chamber 9, the working fluid and waste residue in the sedimentation chamber 9 can be discharged together through the slag discharge port 17. The working fluid can be filtered and reused. This utility model has a reasonable structure. The filter box 1 is equipped with multiple partitions 3, which form multiple sedimentation chambers 9. The partitions 3 are arranged in order of height according to the overflow port 12. Each partition 3 is equipped with an L-shaped support plate 5 at the overflow port 12. Each L-shaped support plate 5 is equipped with a bar magnet 6. When the working liquid overflows through multiple partitions 3, it is also adsorbed by the bar magnet 6, which greatly improves the filtration effect. At the same time, there is no need for secondary filtration, which greatly improves efficiency. The sedimentation chamber 9 located below the liquid inlet 8 is equipped with a frame 10 with a filter screen 4 through two support plates 11. The filter screen 4 can pre-filter the larger impurities that are carried with the working liquid when it is discharged, which facilitates the collection of larger impurities.

[0026] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0027] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A filtration device for working fluid in an electrical discharge machine tool, characterized in that: The filter includes a filter box (1), a cover (2), partitions (3), a filter screen (4), an L-shaped tray (5), and a bar magnet (6). The filter box (1) has a cover (2) on its upper surface. The filter box (1) has an outlet (7) at the bottom of one end. The cover (2) has an inlet (8) at the end away from the outlet (7). The filter box (1) has several partitions (3) inside. The filter box (1) has several sedimentation chambers (9) formed by the partitions (3). The sedimentation chamber (9) located below the inlet (8) is... Each side of the part is provided with a support plate (11). The filter screen (4) is set inside the frame (10). The two ends of the frame (10) are respectively supported on the support plate (11) and fastened together with bolts. Each partition (3) is provided with an overflow port (12) at the upper end. The height of the partition (3) gradually decreases from the end away from the liquid outlet (7) to the end closer to the liquid outlet (7). Each partition (3) is provided with an L-shaped support plate (5) at the end away from the liquid outlet (7). Each L-shaped support plate (5) is provided with a bar magnet (6).

2. The filtration device for EDM machine tool working fluid according to claim 1, characterized in that: The upper surface of the bar magnet (6) is flush with the height of the corresponding overflow port (12).

3. The filtration device for EDM machine tool working fluid according to claim 1, characterized in that: The box cover (2) has an opening (13) at each sedimentation chamber (9), and a cover plate (14) is hinged to the upper surface of the box cover (2) at each opening (13), and the cover plate (14) is provided with a first handle (15).

4. The filtration device for EDM machine tool working fluid according to claim 1, characterized in that: The cover (2) is fastened to the filter box (1) by bolts.

5. The filtration device for EDM machine tool working fluid according to claim 1, characterized in that: The filter box (1) is provided with a support leg (16) at the bottom.

6. The filtration device for EDM machine tool working fluid according to claim 1, characterized in that: The filter box (1) is provided with a slag discharge port (17) on its side and at the bottom of each sedimentation chamber (9).

7. The filtration device for EDM machine tool working fluid according to claim 1, characterized in that: The bottom of the L-shaped tray (5) is provided with a strip groove (18).

8. The filtration device for EDM machine tool working fluid according to claim 1, characterized in that: The frame (10) is provided with a second handle (19) on both sides.

Images