Height-adjustable working fluid tank for electrical discharge machining (EDM) machines

By designing a height-adjustable working fluid tank for EDM machines, the problem of non-adjustable sidewall height in existing technologies has been solved, enabling efficient workpiece assembly and disassembly and preventing fluid leakage, thereby improving the efficiency and lifespan of the equipment.

CN224273597UActive Publication Date: 2026-05-26JIANGSU YISHENG NUMERICAL CONTROL MASCH TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU YISHENG NUMERICAL CONTROL MASCH TECH CO LTD
Filing Date
2025-06-23
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The height of the working fluid tank sidewall in existing EDM machines cannot be adjusted, resulting in low workpiece assembly and disassembly efficiency.

Method used

A height-adjustable working fluid tank for an electrical discharge machining (EDM) machine tool was designed. A movable ring plate is connected to a fixed ring plate, and the movable ring plate is raised and lowered using a top support to achieve vertical expansion of the accommodating space. Combined with a sealing component, liquid leakage is prevented.

Benefits of technology

It enables efficient operation during workpiece assembly and disassembly, reduces the height of the working fluid tank sidewall, prevents liquid leakage, improves work efficiency, and extends equipment life.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a height-adjustable working fluid tank for an electrical discharge machining (EDM) machine tool, comprising: a base plate; a fixed ring plate vertically mounted on the base plate; a vertically arranged movable ring plate, the lower end face of which forms an annular slot, the upper part of which is movably inserted into the slot, the base plate, the fixed ring plate, and the movable ring plate forming a accommodating space for holding the working fluid; a top support for raising and lowering the movable ring plate, mounted on the base plate; and a sealing assembly disposed in the slot, comprising multiple chain plates and a flexible membrane, the flexible membrane being connected between the upper part of the fixed ring plate and the bottom of the slot, the flexible membrane being arranged in a circle along the circumferential direction of the slot, each chain plate being foldably connected between the upper part of the fixed ring plate and the bottom of the slot, the multiple chain plates being continuously arranged along the circumferential direction of the slot. This utility model solves the problem that the side wall height of the working fluid tank in existing EDM machines cannot be adjusted.
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Description

Technical Field

[0001] This utility model relates to the field of EDM technology, specifically to a height-adjustable working fluid tank for an EDM machine tool. Background Technology

[0002] In the field of machine tool processing, some workpiece machining requires immersion in a working fluid. For example, electrical discharge machining (EDM) uses a working fluid as the discharge medium. The working fluid forms a spark that breaks down the discharge channel and quickly restores the gap to its insulating state after the discharge ends; it also compresses the discharge channel and helps to eject and remove electro-erosion products. These types of machine tools require a dedicated working fluid tank to hold the machining fluid. In existing technology, the height of the sidewall of the working fluid tank on these machine tools cannot be adjusted. Often, a door-type structure is set on one side of the working fluid tank for installing and removing workpieces. This structure results in low efficiency in workpiece assembly and disassembly. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, a height-adjustable working fluid tank for electrical discharge machining (EDM) is provided to solve the problem that the side wall height of the working fluid tank in existing EDM machines cannot be adjusted.

[0004] To achieve the above objectives, a height-adjustable working fluid tank for an electrical discharge machining (EDM) machine is provided, comprising:

[0005] Base plate;

[0006] A fixed ring plate is vertically mounted on the base plate;

[0007] A vertically arranged movable ring plate has an annular slot formed on its lower end surface. The upper part of a fixed ring plate is movably inserted into the slot. The base plate, the fixed ring plate, and the movable ring plate enclose a space for containing the working fluid.

[0008] A top support for raising and lowering the movable ring plate is installed on the base plate;

[0009] The sealing assembly disposed in the slot includes multiple chain plates and a flexible membrane. The flexible membrane is connected between the upper part of the fixed ring plate and the bottom of the slot. The flexible membrane is arranged in a circle along the circumferential direction of the slot. Each chain plate is foldably connected between the upper part of the fixed ring plate and the bottom of the slot. The multiple chain plates are continuously arranged along the circumferential direction of the slot.

[0010] Furthermore, the flexible membrane is disposed on the side of the chain plate near the accommodating space. After the top support lifts the movable ring plate, the chain plate is tightened and supported by the flexible membrane.

[0011] Furthermore, a flange is formed on the top of the movable ring plate, and the top support is disposed on the outer edge of the bottom plate, and the top support is supported on the flange.

[0012] Furthermore, the top support is an electro-hydraulic push rod or a jack.

[0013] Furthermore, the top support is located at the corner of the flange plate.

[0014] Furthermore, a stiffening plate is connected between the flange plate and the outer wall of the movable ring plate.

[0015] Furthermore, the number of stiffening plates is multiple, and the multiple stiffening plates are spaced apart along the length direction of the flange plate.

[0016] Furthermore, the slot is rectangular, and each segment of the slot is provided with the chain plate.

[0017] The beneficial effects of this utility model are as follows: The height-adjustable working fluid tank for EDM machines is a novel type of working fluid tank with adjustable sidewalls. It features a movable ring plate that connects to a fixed ring plate, and a top support that raises and lowers the movable ring plate to expand the vertical space for holding the working fluid. When workpieces need to be disassembled or assembled, the movable ring plate can be lowered via the top support, reducing the sidewall height of the working fluid tank for easier disassembly and assembly. A sealing component is installed in the slot of the movable ring plate to prevent working fluid leakage. After assembly, the movable ring plate is raised back to restore the required sidewall height, and the working fluid is then refilled for machining operations. The top support only moves one movable ring plate up and down, resulting in low energy consumption. This height-adjustable working fluid tank for EDM machines features a clever structural design, smooth lifting motion, long service life, and high working efficiency. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the height-adjustable working fluid tank of an electrical discharge machining (EDM) machine tool according to an embodiment of the present invention.

[0020] Figure 2 This is a cross-sectional view of the height-adjustable electrical discharge machining (EDM) fluid tank according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the raised state of the movable ring plate in an embodiment of the present invention.

[0022] Figure 4 for Figure 3 The sectional view at point AA. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Reference Figures 1 to 4 As shown, this utility model provides a height-adjustable working fluid tank for an electrical discharge machining (EDM) machine tool, comprising: a base plate 1, a fixed ring plate 2, a movable ring plate 3, a top support 4, and a sealing assembly 5.

[0026] In this embodiment, the base plate 1 is rectangular. The fixing ring plate 2 is vertically mounted on the base plate 1. The cross-section of the fixing ring plate is rectangular.

[0027] The movable ring plate 3 is vertically positioned. The size of the movable ring plate 3 is adapted to the size of the fixed ring plate. Specifically, the lower end face of the movable ring plate 3 forms an annular slot 30. The upper part of the fixed ring plate 2 is movably inserted into the slot 30. The movable ring plate can move up and down vertically.

[0028] In this embodiment, the width of the slot is adapted to the thickness of the fixed ring plate. The base plate 1, the fixed ring plate 2, and the movable ring plate 3 enclose a receiving space. The receiving space is used to receive the working fluid for electrical discharge machining.

[0029] The top support 4 is installed on the base plate 1. The top support 4 is used to raise and lower the movable ring plate 3 so that the movable ring plate can move up and down.

[0030] The sealing assembly 5 is disposed in the slot 30. Specifically, the sealing assembly 5 includes a multi-link chain plate 51 and a flexible membrane 52.

[0031] The flexible membrane 52 is connected between the upper part of the fixed ring plate 2 and the bottom of the slot 30. The flexible membrane 52 is arranged in a circle along the circumferential direction of the slot 30.

[0032] Combination Figure 2 and Figure 3 As shown, each chain plate 51 is foldably connected between the upper part of the fixed ring plate 2 and the bottom of the slot 30. Multiple chain plates 51 are continuously arranged along the circumferential direction of the slot 30.

[0033] In this embodiment, the chain plate includes multiple strip plates, and adjacent strip plates are hinged together by a hinge shaft. The hinge shaft is arranged along the length direction of the strip plate. The strip plates at the upper and lower ends of the chain plate are respectively hinged to the bottom wall of the slot and the upper end face of the fixing ring plate.

[0034] In this embodiment, the slot 30 is rectangular. The slot has two long sides and two short sides. The two long sides are arranged opposite to each other. The two short sides are respectively connected between the two long sides. Each segment of the slot 30 is provided with a chain plate 51. The length of the strip plate of the chain plate is adapted to the length of the long or short side of the slot.

[0035] In a preferred embodiment, the flexible membrane 52 is disposed on the side of the chain plate 51 near the accommodating space. After the top support 4 raises the movable ring plate 3, the chain plate 51 is taut and supported by the flexible membrane 52.

[0036] Continue reading Figure 1 As shown, a flange plate 31 is formed on the top of the movable ring plate 3. A top support 4 is disposed on the outer edge of the base plate 1. The top support 4 is supported by the flange plate 31.

[0037] In a preferred embodiment, the top support 4 is an electro-hydraulic actuator or a jack. In this embodiment, the top support is an electro-hydraulic actuator. There are four electro-hydraulic actuators.

[0038] The top support 4 is located at the corner of the flange 31.

[0039] Four electro-hydraulic push rods move simultaneously under the control of the controller, causing the movable ring plate to rise and fall.

[0040] To improve the structural strength of the movable ring plate, a stiffening plate is connected between the flange plate 31 and the outer wall of the movable ring plate 3.

[0041] Preferably, there are multiple stiffening plates. The multiple stiffening plates are spaced apart along the length of the flange plate 31.

[0042] The height-adjustable working fluid tank for an electrical discharge machining (EDM) machine tool of this utility model includes: a base plate 1, a fixed ring plate 2, a movable ring plate 3, a top support 4, and a sealing assembly 5.

[0043] This utility model relates to a height-adjustable working fluid tank for electrical discharge machining (EDM) machines. It features a novel working fluid tank with adjustable sidewalls, where a movable ring plate connects to a fixed ring plate, and a top support mechanism raises and lowers the movable ring plate to expand the vertical space for holding the working fluid. When workpieces need to be disassembled or assembled, the movable ring plate can be lowered via the top support mechanism, reducing the sidewall height of the working fluid tank for easier disassembly and assembly. A sealing component is installed in the slot of the movable ring plate to prevent working fluid leakage. After assembly, the movable ring plate is raised back to the required sidewall height, and the working fluid is then refilled for machining operations. The top support mechanism only moves one movable ring plate up and down, resulting in low energy consumption. This height-adjustable working fluid tank for EDM machines features a clever structural design, smooth lifting movement, long service life, and high working efficiency.

[0044] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A highly adjustable electro discharge machine tool working fluid tank characterized by, include: Base plate; A fixed ring plate is vertically mounted on the base plate; A vertically arranged movable ring plate has an annular slot formed on its lower end surface. The upper part of a fixed ring plate is movably inserted into the slot. The base plate, the fixed ring plate, and the movable ring plate enclose a space for containing the working fluid. A top support for raising and lowering the movable ring plate is installed on the base plate; The sealing assembly disposed in the slot includes multiple chain plates and a flexible membrane. The flexible membrane is connected between the upper part of the fixed ring plate and the bottom of the slot. The flexible membrane is arranged in a circle along the circumferential direction of the slot. Each chain plate is foldably connected between the upper part of the fixed ring plate and the bottom of the slot. The multiple chain plates are continuously arranged along the circumferential direction of the slot.

2. The height-adjustable electrospark machining tool tank according to claim 1, characterized in that The flexible membrane is disposed on the side of the chain plate near the accommodating space. After the top support lifts the movable ring plate, the chain plate is tightened and supported by the flexible membrane.

3. The height-adjustable electrospark machining tool tank according to claim 1, characterized in that, The top of the movable ring plate is formed with a flange plate, and the top support is disposed on the outer edge of the bottom plate and supported by the flange plate.

4. The height-adjustable working fluid tank for an electrical discharge machining (EDM) machine tool according to claim 3, characterized in that, The supporting component is an electric hydraulic push rod or a jack.

5. The height-adjustable working fluid tank for an electrical discharge machining (EDM) machine tool according to claim 4, characterized in that, The top support is located at the corner of the flange.

6. The height-adjustable working fluid tank for an electrical discharge machining (EDM) machine tool according to claim 5, characterized in that, A stiffening plate is connected between the flange plate and the outer wall of the movable ring plate.

7. The height-adjustable working fluid tank for an electrical discharge machining (EDM) machine tool according to claim 6, characterized in that, The number of stiffening plates is multiple, and the multiple stiffening plates are spaced apart along the length direction of the flange plate.

8. The height-adjustable working fluid tank for an electrical discharge machining (EDM) machine tool according to claim 1, characterized in that, The slot is rectangular, and each segment of the slot is provided with the chain plate.