Electric spark machine tool with oil groove door pull-down structure

By installing air collection hoods, connecting pipes, and multi-stage filtration equipment on both sides of the oil tank of the EDM machine, the problem of smoke harming the human body during processing is solved, and the smoke is effectively absorbed and filtered, protecting the health of the operator.

CN223960657UActive Publication Date: 2026-03-03JIANGSU DERICA CNC MASCH TOOL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

The gases and fumes generated during EDM machining can harm the human respiratory system and skin, and existing technologies are unable to effectively deal with them.

Method used

A collection hood, connecting pipe, fan, and filtration equipment are installed on both sides of the oil tank. The fan draws in the smoke, which is then purified through a multi-stage filtration system.

Benefits of technology

It effectively absorbs and filters fumes generated during processing, protecting the operator's respiratory system and skin from injury. The position and angle of the hood can be adjusted to accommodate different workpieces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electric spark machine tool with an oil groove door pull-down structure, which relates to the technical field of machine tools and comprises an oil groove arranged on the front side of a machine tool body and a pull-down door arranged on the front side of the oil groove. A supporting rod is arranged in the sleeve, one end of the supporting rod is connected with a mounting plate, a groove is formed in the surface of the mounting plate, the inner wall of the groove is movably connected with a rotating rod, the surface of the rotating rod is connected with a connecting block, the surface of the connecting block is connected with an air collecting cover, and one end of the air collecting cover is connected with a connecting pipe. According to the machine tool, the air collecting covers, the connecting pipes, the draught fans, the filtering devices and the like are arranged on the two sides of the oil groove, smoke and the like generated in the machining process of the machine tool can be absorbed and filtered, harm to the respiratory system, the skin and the like of the human body is avoided, and meanwhile the air collecting covers and the like can be adjusted according to the size and the height of a machined part; therefore, generated smoke, peculiar smell and the like can be absorbed in time.
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Description

Technical Field

[0001] This utility model relates to the field of machine tool technology, and in particular to an EDM machine tool with a pull-down oil tank door structure. 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. A pull-down door is usually located at the front of the oil tank, and it typically uses a rotatable guide column or similar mechanical structure to ensure smooth and tight closure. When closing the oil tank door, the operator can use a specific operation (such as rotating the door handle) to slide the door down the guide column until a seal is achieved. Currently, EDM tools with pull-down oil tank doors utilize high-energy pulse power to generate electrical sparks during machining. Simultaneously, the working fluid (such as kerosene) decomposes under instantaneous localized high temperatures, potentially producing gases and fumes. These gases and fumes may contain hydrogen, acetylene, ethylene, methane, and small amounts of carbon monoxide and oil mist. The mixture of these substances may create an unpleasant odor and potentially cause harm to the respiratory system or skin. Utility Model Content

[0003] This utility model provides an EDM machine tool with a pull-down structure for an oil tank door, which solves the problems in the background art.

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

[0005] An EDM machine tool with a pull-down oil tank door structure includes an oil tank located on the front side of the machine tool body and a pull-down door located on the front side of the oil tank, with sleeves connected to both sides of the oil tank respectively.

[0006] The sleeve has a support rod inside, and one end of the support rod is connected to a mounting plate. The surface of the mounting plate has a groove, and the inner wall of the groove is movably connected to a rotating rod. The surface of the rotating rod is connected to a connecting block, and the surface of the connecting block is connected to an air collecting hood. One end of the air collecting hood is connected to a connecting pipe.

[0007] As a further description of the above technical solution:

[0008] The other end of the connecting pipe is connected to a fan and a filtration device.

[0009] As a further description of the above technical solution:

[0010] The rotating rod is threaded with a nut that contacts the inner wall of the groove.

[0011] As a further description of the above technical solution:

[0012] The sleeve has an internal groove, and a slider connected to the support rod is slidably connected inside the groove.

[0013] As a further description of the above technical solution:

[0014] The sleeve has fixing holes equidistantly spaced on both sides, and the support rod has mounting grooves on both sides. A spring is connected inside the mounting groove, and a fixing rod with a "T"-shaped cross section is connected to one side of the spring and connected to the inside of the fixing hole.

[0015] As a further description of the above technical solution:

[0016] The opening of the mounting slot is connected to a stop block for blocking the fixing rod.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] In this invention, by setting up air collecting hoods, connecting pipes, fans, and filtration equipment on both sides of the oil tank, the smoke and other fumes generated during machine tool processing can be absorbed and filtered to avoid harm to the human respiratory system and skin. At the same time, the air collecting hoods can be adjusted according to the size and height of the workpiece to facilitate the timely absorption of smoke and odors. Attached Figure Description

[0019] Figure 1 A schematic diagram of an EDM machine tool with a pull-down oil tank door structure;

[0020] Figure 2 This is a schematic diagram of the surface structure of the support rod in this utility model;

[0021] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This is a schematic diagram of the internal structure of the sleeve in this utility model.

[0023] Legend:

[0024] 1. Machine tool body; 2. Pull-down door; 3. Sleeve; 4. Support rod; 5. Mounting plate; 6. Groove; 7. Rotating rod; 8. Connecting block; 9. Air collector hood; 10. Connecting pipe; 11. Nut; 12. Slide groove; 13. Slider; 14. Fixing hole; 15. Mounting groove; 16. Spring; 17. Fixing rod. Detailed Implementation

[0025] 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.

[0026] Reference Figures 1-4 An EDM machine tool with a pull-down door structure for an oil tank includes an oil tank located on the front side of the machine tool body 1 and a pull-down door 2 located on the front side of the oil tank. Sleeves 3 are connected to both sides of the oil tank. A support rod 4 is installed inside the sleeve 3, and one end of the support rod 4 is connected to a mounting plate 5. A groove 6 is formed on the surface of the mounting plate 5, and a rotating rod 7 is movably connected to the inner wall of the groove 6. A connecting block 8 is connected to the surface of the rotating rod 7, and a collecting hood 9 is connected to the surface of the connecting block 8. One end of the collecting hood 9 is connected to a connecting pipe 10, which facilitates the removal of smoke and odors by a fan and filtration by a filter device to prevent harm to the respiratory system and skin of surrounding personnel. Simultaneously, the support rod 4 can adjust the position of the collecting hood 9 according to the size of the workpiece, and the rotating rod 7 can adjust the angle of the collecting hood 9 according to the height of the workpiece, so as to promptly absorb and filter the generated smoke and odors.

[0027] Furthermore, the other end of the connecting pipe 10 is connected to a fan and a filtration device. The filtration device includes a first-stage filtration system using a gas-liquid sintered mesh covered with a PTFE membrane, a second-stage filtration system using a special primary filter felt, and a third-stage filtration system consisting of a high-efficiency activated carbon layer.

[0028] Furthermore, the surface of the rotating rod 7 is threaded with a nut 11 that contacts the inner wall of the groove 6. The rotating rod 7 also passes through the groove 6 and is connected with a nut 11. The nut 11 is in close contact with the surface of the mounting plate 5, which facilitates the limiting of the rotating rod 7 by the friction between the nut 11 and the mounting plate 5.

[0029] Furthermore, the sleeve 3 has an internal groove 12, and the groove 12 is slidably connected to a slider 13 connected to the support rod 4. This allows the support rod 4 to move within the groove 12 via the slider 13, ensuring that the fixing rod 17 on one side of the support rod 4 and the fixing hole 14 on the sleeve 3 are always on a parallel line.

[0030] Furthermore, the sleeve 3 has fixing holes 14 equidistantly opened on both sides, and the support rod 4 has mounting grooves 15 on both sides respectively. A spring 16 is connected inside the mounting groove 15, and a fixing rod 17 with a "T"-shaped cross section connected to the inside of the fixing hole 14 is connected to one side of the spring 16. This is to facilitate the movement of the fixing rod 17 connected to the support rod 4 after the air collector 9 at one end of the support rod 4 is moved to the designated position. The spring 16 can then move the fixing rod 17 to the inside of the fixing hole 14, thus limiting the support rod 4 and the air collector 9.

[0031] Furthermore, a stop is connected to the opening of the mounting groove 15 to block the fixing rod 17. The stop prevents the spring 16 from popping the fixing rod 17 out of the mounting groove 15.

[0032] 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 with a sump door pull-down structure, comprising a sump arranged on the front side of a machine tool body (1) and a pull-down door (2) arranged on the front side of the sump, characterized in that: Two sides of the oil tank are respectively connected with sleeve pipes (3); The inside of the sleeve pipe (3) is provided with a supporting rod (4), one end of the supporting rod (4) is connected with a mounting plate (5), the surface of the mounting plate (5) is provided with a groove (6), the inner wall of the groove (6) is movably connected with a rotating rod (7), the surface of the rotating rod (7) is connected with a connecting block (8), the surface of the connecting block (8) is connected with a wind collecting cover (9), one end of the wind collecting cover (9) is connected with a connecting pipe (10).

2. The electrical discharge machine according to claim 1, wherein: The other end of the connecting pipe (10) is connected with a fan and a filtering device.

3. The electrical discharge machine according to claim 1, wherein: The surface of the rotating rod (7) is threadedly connected with a nut (11) in contact with the inner wall of the groove (6).

4. The electrical discharge machine according to claim 1, wherein: The inside of the sleeve pipe (3) is connected with a sliding groove (12), the inside of the sliding groove (12) is slidably connected with a sliding block (13) connected with the supporting rod (4).

5. The electrical discharge machine according to claim 1, wherein: The two sides of the sleeve pipe (3) are equidistantly provided with fixing holes (14), the two sides of the supporting rod (4) are respectively provided with mounting grooves (15), the inside of the mounting groove (15) is connected with a spring (16), one side of the spring (16) is connected with a fixing rod (17) with a "T" shaped cross section connected with the inside of the fixing hole (14).

6. The electric spark machine tool of claim 5, characterized in that The opening of the mounting groove (15) is connected with a stop block for blocking the fixing rod (17).