A lifting oil tank applied to an electric spark forming machine tool

Abstract

This utility model relates to the technical field of lifting oil tanks for electrical discharge machining (EDM) machines, and discloses a lifting oil tank for use in EDM machines. The utility model includes an oil tank that stores oil to facilitate operation in an immersed state with the EDM machine; a lower oil tank and oil pumps A and B mounted on the lower oil tank. Oil pumps A and B are respectively equipped with an inlet pipe and an outlet pipe connected to the oil tank. When oil pump A operates, it injects oil from the lower oil tank into the oil tank, while oil pump B operates, it draws oil from the oil tank into the lower oil tank, thus controlling the oil level in the oil tank. During EDM machining, when the machining position is below the specified working depth of the oil in the oil tank, oil pump A continuously supplies oil into the oil tank. Excess oil overflows through an overflow hole and flows back into the outer jacket assembly of the oil collection system, then flows back to the lower oil tank through a connecting oil pipe, where it is filtered by the oil filter before reuse.

Description

Technical Field

[0001] This utility model relates to the technical field of lifting oil tanks for electrical discharge machining (EDM) machines, and in particular to a lifting oil tank applied to EDM machines. Background Technology

[0002] The EDM machine tool is equipped with an oil tank during operation, and its working part is immersed in the oil in the oil tank. The existing oil tank has a fixed structure and a large volume, which cannot be adjusted according to the actual working oil depth. In addition, it does not have circulation and overflow functions, making it difficult to control the oil temperature and the oil level.

[0003] This proposal is put forward in order to improve and optimize the above-mentioned problems or shortcomings. Utility Model Content

[0004] A lifting oil tank for use in an electrical discharge machining (EDM) machine tool includes an oil tank that stores oil to help the EDM machine tool operate in a fully immersed state.

[0005] The system includes a lower oil tank and oil pumps A and B mounted on the lower oil tank. Oil pumps A and B are respectively equipped with an oil inlet pipe and an oil outlet pipe that are connected to the oil tank. When oil pump A is working, it injects the oil from the lower oil tank into the oil tank, while when oil pump B is working, it draws the oil from the oil tank into the lower oil tank, thereby controlling the oil level in the oil tank.

[0006] An oil tank telescopic assembly is disposed outside the oil tank and has a sealing element between it and the oil tank wall for sealing during vertical extension and retraction. The oil tank telescopic assembly forms at least one independent interlayer cavity on the outside of the oil tank. The oil tank telescopic assembly can be raised relative to the oil tank under the drive of a driving member, thereby increasing the actual working oil level of the oil tank. The driving member is an electric telescopic rod, a hydraulic telescopic rod, or a pneumatic telescopic rod, wherein one end of the driving member is fixed and the other end is connected to the oil tank telescopic assembly for driving it.

[0007] The oil filtration section is connected to the oil extraction pipe to filter the oil recovered from the oil tank.

[0008] Preferably, the oil tank telescopic kit includes an oil collecting outer jacket assembly welded to the outer wall of the oil tank, the oil collecting outer jacket assembly and the oil tank side wall forming an upwardly open jacket cavity, and also includes an oil overflow sliding jacket assembly, wherein the inner wall of the oil overflow sliding jacket assembly is inserted into the oil collecting outer jacket assembly, a sealing element is provided between the outer wall of the oil tank and the inner wall of the oil overflow sliding jacket assembly to achieve sealing, and the oil overflow sliding jacket assembly extends and retracts vertically to change the actual liquid level height that the oil can accommodate.

[0009] Preferably, the inner wall of the oil overflow sliding interlayer assembly is provided with oil overflow holes at intervals. The working oil in the oil tank flows into the interlayer of the oil collecting outer interlayer assembly after passing through the oil overflow holes, thereby preventing oil overflow.

[0010] Preferably, a connecting oil pipe is provided between the oil collecting outer jacket assembly and the lower oil tank to allow the overflow oil collected in the oil collecting outer jacket assembly to flow back into the lower oil tank, and one end of the connecting oil pipe is connected to the oil filter section.

[0011] Preferably, the oil extraction pipe is equipped with a solenoid valve to prevent the oil in the oil tank from automatically flowing back into the lower oil tank when not needed.

[0012] Preferably, a rubber seal is provided between the oil tank and the inner wall of the oil overflow sliding jacket assembly. The rubber seal is fixed by a sealing plate, which is fixed to the oil tank by welding or screws. During the up-and-down movement of the oil overflow sliding jacket assembly, the rubber seal and the inner wall of the oil overflow sliding jacket assembly achieve a sealed fit, thereby preventing oil from seeping downwards.

[0013] The advantages and positive effects of this utility model are:

[0014] 1. During the EDM machining process, the machining position is at a specified working depth below the oil level in the oil tank. Simultaneously, oil pump A continuously supplies oil into the oil tank. Excess oil overflows through the overflow hole and flows back into the outer jacket of the oil collection assembly. Then, it flows back to the lower oil tank through the connecting oil pipe and is filtered by the oil filter before being reused. This device can adjust the working height of the oil tank according to actual working needs and form a circulation to reduce the working oil temperature.

[0015] 2. The oil tank 19 adopts a C-shaped double-layer structure design and is welded into an upward-opening box with a pipe interface connected to the lower oil tank 10.

[0016] 3. Adjust the working height of the oil tank liquid level by adjusting the height of the oil spill sliding jacket assembly 15.

[0017] 4. The oil collection outer jacket assembly 17 is connected to the lower oil tank 10 through the connecting oil pipe 18. Excess oil flows back through the overflow hole 16 and the oil level is controlled. In the event of seal failure of the sealing strip, the working fluid flows back into the oil collection outer jacket assembly 17 to prevent leakage to the outside of the machine tool. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

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

[0021] Figure 3 This is a schematic diagram of the structure of this utility model;

[0022] Figure 4 yes Figure 3 Schematic diagram of the full cross-section structure along the AA direction.

[0023] The following labels are used in the attached diagram: 10. Lower oil tank; 11. Oil pump A; 12. Oil pump B; 13. Oil inlet pipe; 14. Oil extraction pipe; 15. Overflow sliding jacket assembly; 16. Overflow hole; 17. Oil collection outer jacket assembly; 18. Connecting oil pipe; 19. Oil tank; 20. Rubber seal; 21. Seal pressure plate; 22. Solenoid valve; 23. Oil filter section. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0026] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0027] like Figure 1-4 As shown, the present invention provides a lifting oil tank for use in an electrical discharge machining (EDM) machine tool, which includes an oil tank 19 that stores oil to help the EDM machine tool operate in a fully immersed state.

[0028] The lower oil tank 10 and oil pumps A11 and B12 are configured on the lower oil tank 10. Oil pumps A11 and B12 are respectively equipped with an oil inlet pipe 13 and an oil extraction pipe 14, which are connected to the oil tank 19. When oil pump A11 works, it injects the oil in the lower oil tank 10 into the oil tank 19, while when oil pump B12 works, it draws the oil in the oil tank 19 into the lower oil tank 10, thereby realizing the control of the oil level in the oil tank 19.

[0029] An oil tank telescopic assembly is disposed outside the oil tank 19 and has a sealing element between it and the wall of the oil tank 19 for sealing during vertical extension and retraction. The oil tank telescopic assembly forms at least one independent interlayer cavity on the outside of the oil tank 19. The oil tank telescopic assembly can be raised relative to the oil tank 19 under the drive of the drive member, thereby increasing the actual working oil level of the oil tank 19. The drive member is an electric telescopic rod, a hydraulic telescopic rod, or a pneumatic telescopic rod, wherein one end of the drive member is fixed and the other end is connected to the oil tank telescopic assembly for driving it.

[0030] The oil filter section 23 filters the oil recovered from the oil tank 19 (the prior art will not be described in detail).

[0031] Preferred, such as Figure 4 The oil tank telescopic kit includes an oil collecting outer jacket assembly 17 welded to the outer wall of the oil tank 19. The oil collecting outer jacket assembly 17 and the side wall of the oil tank 19 form an upwardly open jacket cavity. It also includes an oil overflow sliding jacket assembly 15, wherein the inner wall of the oil overflow sliding jacket assembly 15 is inserted into the oil collecting outer jacket assembly 17. A sealing element is provided between the outer wall of the oil tank 19 and the inner wall of the oil overflow sliding jacket assembly 15 to achieve sealing. The oil overflow sliding jacket assembly 15 extends and retracts vertically to change the actual liquid level height that the oil can accommodate.

[0032] Preferably, the inner wall of the oil overflow sliding interlayer assembly 15 is provided with oil overflow holes 16 at intervals. The working oil in the oil tank 19 flows into the interlayer of the oil collection outer interlayer assembly 17 after passing through the oil overflow holes 16, thereby preventing oil overflow.

[0033] Preferably, a connecting oil pipe 18 is provided between the oil collecting outer jacket assembly 17 and the lower oil tank 10 to allow the overflow oil collected in the oil collecting outer jacket assembly 17 to flow back into the lower oil tank 10.

[0034] Preferably, the oil extraction pipe 14 is equipped with a solenoid valve 22 to prevent the oil in the oil tank 19 from automatically flowing back into the lower oil tank 10 when not needed.

[0035] Preferably, a rubber seal 20 is provided between the oil tank 19 and the inner wall of the oil overflow sliding interlayer assembly 15. The rubber seal 20 is fixed by a sealing plate 21, which is fixed to the oil tank 19 by welding or screws. During the up-and-down movement of the oil overflow sliding interlayer assembly 15, the rubber seal 20 and the inner wall of the oil overflow sliding interlayer assembly 15 achieve a sealed fit, thereby preventing oil from seeping downwards.

[0036] In specific implementation: During the EDM machining process, the machining position is at a specified working depth below the oil level in the oil tank 19. Simultaneously, the oil pump A11 continuously supplies oil into the oil tank 19. Excess oil overflows through the overflow hole 16 and flows back into the oil collection outer jacket assembly 17. Then, it flows back to the lower oil tank 10 through the connecting oil pipe 18 and is filtered by the oil filter section 23 before being reused. This device can adjust the working height of the oil tank according to actual working needs and form a circulation to reduce the working oil temperature.

[0037] It should be emphasized that the embodiments described in this utility model are illustrative rather than limiting. Therefore, this utility model is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this utility model are also within the scope of protection of this utility model.

Claims

1. A lifting oil tank applied to an electric spark forming machine tool, characterized by: Including an oil tank (19), which stores oil to work in an immersed state with the help of an electrical discharge machine tool; The lower oil tank (10) and the oil pump A (11) and oil pump B (12) configured on the lower oil tank (10) are provided with an oil inlet pipe (13) and an oil extraction pipe (14) respectively, which are connected to the oil tank (19). After the oil pump A (11) works, it injects the oil in the lower oil tank (10) into the oil tank (19), and after the oil pump B (12) works, it draws the oil in the oil tank (19) into the lower oil tank (10), thereby realizing the control of the oil level in the oil tank (19). An oil tank telescopic kit is provided outside the oil tank (19) and a sealing element is provided between the oil tank (19) and the wall of the oil tank (19) for sealing during the vertical extension and retraction process. The oil tank telescopic kit forms at least one independent interlayer cavity on the outside of the oil tank (19). The oil tank telescopic kit can be raised relative to the oil tank (19) under the drive of the driving member, thereby increasing the actual working oil level of the oil tank (19). The driving member is an electric telescopic rod, a hydraulic telescopic rod, or a pneumatic telescopic rod, wherein one end of the driving member is fixed and the other end is connected to the oil tank telescopic kit to drive it. Oil filtration section (23).

2. The lifting oil tank for the electric spark forming machine tool according to claim 1, characterized in that: The oil tank telescopic kit includes an oil collecting outer jacket assembly (17) welded to the outer wall of the oil tank (19). The oil collecting outer jacket assembly (17) and the side wall of the oil tank (19) form an upwardly open jacket cavity. It also includes an oil overflow sliding jacket assembly (15). The inner wall of the oil overflow sliding jacket assembly (15) is inserted into the oil collecting outer jacket assembly (17). A sealing element is provided between the outer wall of the oil tank (19) and the inner wall of the oil overflow sliding jacket assembly (15) to achieve sealing. The oil overflow sliding jacket assembly (15) extends and retracts vertically to change the actual liquid level height that the oil can accommodate.

3. The lifting oil tank for the electric spark forming machine tool according to claim 2, characterized in that: The inner wall of the oil overflow sliding interlayer assembly (15) is provided with oil overflow holes (16) at intervals. The working oil in the oil tank (19) flows into the interlayer of the oil collection outer interlayer assembly (17) after passing through the oil overflow holes (16), thereby preventing the oil from overflowing.

4. The lifting oil tank for the electric spark forming machine tool according to claim 3, characterized in that: A connecting oil pipe (18) is provided between the oil collecting outer jacket assembly (17) and the lower oil tank (10) to realize the return of the overflow oil collected in the oil collecting outer jacket assembly (17) to the lower oil tank (10).

5. The lifting oil tank for the electric spark forming machine according to claim 4, characterized in that: A solenoid valve (22) is provided on the oil extraction pipe (14) to prevent the oil in the oil tank (19) from automatically flowing back into the lower oil tank (10) when not needed.

6. The lifting oil tank for the electric spark forming machine according to claim 5, characterized in that: A rubber seal (20) is provided between the oil tank (19) and the inner wall of the oil overflow sliding interlayer assembly (15). The rubber seal (20) is fixed by a sealing plate (21), which is fixed to the oil tank (19) by welding or screws. During the up-and-down movement of the oil overflow sliding interlayer assembly (15), the rubber seal (20) and the inner wall of the oil overflow sliding interlayer assembly (15) achieve a sealed fit, thereby preventing oil from seeping downwards.

Images