Nozzle mechanism for vertical limiting jet flow of linear cutting machine tool

Abstract

The utility model discloses a nozzle mechanism for vertical limiting jet flow of a linear cutting machine, which relates to the field of linear cutting machines, and is characterized by comprising a linear cutting machine body and a cutting line mounted on the linear cutting machine body, and a cutting liquid jet flow pipe is arranged outside the cutting line. A first flange plate is welded to the end, close to the wire cutting machine body, of the cutting fluid jet pipe, the cutting fluid jet pipe is fixed to the wire cutting machine body through screws of the first flange plate, a fluid inlet pipe is fixedly inserted into the side face of the cutting fluid jet pipe, and an electromagnetic valve is fixed to the outside of the fluid inlet pipe. And meanwhile, a flow guide mechanism is further rotationally connected into the cutting liquid jet pipe, and a conical spray head is detachably connected to the bottom of the cutting liquid jet pipe, so that the effects that the cutting liquid can be vertically jetted, and the workpiece cooling efficiency of the cutting liquid is improved after jet acceleration and jet energy increase of the cutting liquid are achieved.

Description

Technical Field

[0001] This utility model relates to the field of wire EDM machine technology, specifically to a nozzle mechanism for vertically limiting jet flow in a wire EDM machine tool. Background Technology

[0002] The wire EDM machine tool was invented by the Lazarinko couple when they were studying the phenomenon and causes of corrosion damage to switch contacts caused by spark discharge. They discovered that the instantaneous high temperature of the electric spark could melt and oxidize the local metal, thus corroding it. However, the electrode wire is prone to loosening after long-term use, and if it is not adjusted in time, it may break. Currently, the tension of the electrode wire is adjusted manually, but manual adjustment is unstable and cannot monitor the electrode wire in real time. At the same time, frequent manual inspection is not only a waste of manpower but also too troublesome.

[0003] To address the aforementioned issues, existing patent CN202111527339.3 provides a wire EDM machine electrode wire tensioning device, comprising a horizontal plate and a fixed base. Both ends of the horizontal plate are fixedly connected to vertical frames via fixing blocks. The bottom of each vertical frame has a threaded groove, and a threaded cap is threaded into the groove. A thrust spring is fixedly connected to the threaded cap on one side of the vertical frame's inner cavity via a fixing block. This invention relates to the field of wire EDM technology. This wire EDM machine electrode wire tensioning device, by incorporating a guide wheel and a tensioning wheel, with the guide wheel connected to the thrust spring via a connecting rod and the tensioning wheel connected to a square threaded cylinder, allows for secondary adjustment of the electrode wire. This prevents electrode wire breakage due to time constraints preventing timely inspection by operators, providing convenience for workers, reducing electrode wire wear, and greatly improving the equipment's practicality.

[0004] However, the above structure only has a tension adjustment mechanism. After the cutting line loosens, it may shift during the cutting vibration process. Therefore, direct tension adjustment may cause slippage because the position of the tension wheel remains unchanged. Utility Model Content

[0005] The purpose of this invention is to provide a nozzle mechanism for vertically limiting the flow of cutting fluid in a wire EDM machine, which improves the efficiency of cooling the workpiece by accelerating the flow of cutting fluid and increasing the energy of the ejection.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The device includes a wire EDM machine body and a cutting wire installed on the machine body. A cutting fluid spray pipe is provided outside the cutting wire. A first flange is welded to the end of the cutting fluid spray pipe near the machine body and is fixed to the machine body with screws through the first flange. An inlet pipe is fixedly inserted into the side of the cutting fluid spray pipe. A solenoid valve is fixed outside the inlet pipe. The inner wall of the cutting fluid spray pipe is threaded. A flow guiding mechanism is also rotatably connected inside the cutting fluid spray pipe. A conical nozzle is detachably connected to the bottom of the cutting fluid spray pipe.

[0008] Furthermore, a second flange is welded to the bottom of the cutting fluid spray pipe, and the conical nozzle is fixed by screws on the second flange.

[0009] By adopting the above technical solution, the cutting fluid spray pipe can be installed quickly and easily.

[0010] Furthermore, the conical nozzle has internal grooves, and several grooves are provided along the circumference of the conical nozzle.

[0011] By adopting the above technical solution, when spraying, the nozzle contacts the groove on the inner wall of the conical nozzle, thereby ensuring that the spraying direction is along the axis of the conical nozzle. The conical nozzle is installed parallel to the cutting line, so that the cutting fluid is sprayed out in a vertical direction.

[0012] Furthermore, an arc-shaped rubber sheet is fixed at the end of the conical nozzle away from the wire cutting fluid spray pipe. Several arc-shaped rubber sheets are arranged along the circumference of the conical nozzle, and there are angular gaps between the several arc-shaped rubber sheets.

[0013] By adopting the above technical solution, after being sprayed out, it comes into contact with the arc-shaped rubber sheet, which can wrap the cutting fluid and prevent it from spraying out.

[0014] Furthermore, the flow guiding mechanism includes a fixed frame fixed between the inner walls of the cutting fluid spray pipe. Two fixed frames are provided at the upper and lower ends of the cutting fluid spray pipe. A rotating shaft is rotatably connected between the two fixed frames. A spiral blade is fixed on the side of the rotating shaft. Several spiral blades are provided along the circumferential direction and the axial direction of the rotating shaft.

[0015] By adopting the above technical solution, the cutting fluid enters vertically and moves spirally along the thread, thus striking the spiral blades and driving the rotating shaft to rotate. When the rotating shaft rotates, the spiral blades can increase the flow rate of the cutting fluid. In this accelerated state, the cutting fluid maintains a stable spray direction under the combination of the thread and the groove. Since the cutting fluid spray pipe is designed with a conical workpiece, the cutting fluid can be sprayed vertically. At the same time, the accelerated spraying of the cutting fluid increases the spraying energy, thereby improving its efficiency in cooling the workpiece.

[0016] Furthermore, the rotating shaft is hollow inside to allow the cutting line to pass through.

[0017] By adopting the above technical solution, the cutting wire can be easily exported without affecting its normal operation.

[0018] In summary, the beneficial technical effects of this utility model are as follows:

[0019] 1. A conical nozzle is adopted, with a groove inside the conical nozzle. When spraying, it contacts the groove on the inner wall of the conical nozzle, thus ensuring that the spraying direction is along the axis of the conical nozzle. The conical nozzle is installed parallel to the cutting line, so that the cutting fluid is sprayed in a vertical direction.

[0020] 2. An arc-shaped rubber sheet is used. After the fluid is sprayed out, it comes into contact with the arc-shaped rubber sheet, which can wrap the cutting fluid and prevent it from spraying out.

[0021] 3. A flow guiding mechanism is adopted. Due to the vertical entry of the cutting fluid, it moves spirally along the thread and can then hit the spiral blades, driving the rotating shaft to rotate. When the rotating shaft rotates, the spiral blades can increase the flow rate of the cutting fluid. Thus, the cutting fluid in the accelerated state maintains its stable spray direction under the combination of the thread and the groove. The cutting fluid spray pipe is designed with a conical workpiece, so the cutting fluid can be sprayed vertically. At the same time, the cutting fluid spray is accelerated, and the increased spray energy improves its efficiency in cooling the workpiece. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the nozzle mechanism for vertical limiting jet flow of a wire EDM machine tool provided in this embodiment;

[0024] Figure 2 This embodiment provides a nozzle mechanism for vertically limiting jet flow in a wire EDM machine. Figure 1 Top view diagram;

[0025] Figure 3 This is a schematic diagram of the cutting fluid jet pipe structure of a nozzle mechanism for vertical limiting jetting of a wire EDM machine tool provided in this embodiment;

[0026] Figure 4 This is a cross-sectional view along the middle of the cutting fluid spray pipe of a nozzle mechanism for vertical limiting jetting of a wire EDM machine tool provided in this embodiment.

[0027] In the diagram, 1. Wire EDM machine body; 2. Cutting wire; 3. Cutting fluid spray pipe; 4. First flange; 5. Inlet pipe; 6. Solenoid valve; 7. Thread; 8. Conical nozzle; 9. Second flange; 10. Wire groove; 11. Arc-shaped rubber sheet; 12. Fixing frame; 13. Rotating shaft; 14. Spiral blade. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-4 The present invention provides a technical solution comprising a wire EDM machine body 1 and a cutting wire 2 installed on the wire EDM machine body 1. The cutting wire 2 is provided with a cutting fluid spray pipe 3 on its exterior. A first flange 4 is welded to the end of the cutting fluid spray pipe 3 near the end of the wire EDM machine body 1. The first flange 4 is fixed to the wire EDM machine body 1 by screws. An inlet pipe 5 is fixedly inserted into the side of the cutting fluid spray pipe 3. A solenoid valve 6 is fixed to the exterior of the inlet pipe 5. The inner wall of the cutting fluid spray pipe 3 is provided with threads 7. At the same time, a flow guiding mechanism is rotatably connected inside the cutting fluid spray pipe 3. A conical nozzle 8 is detachably connected to the bottom of the cutting fluid spray pipe 3.

[0031] A second flange 9 is welded to the bottom of the cutting fluid spray pipe 3, and the conical nozzle 8 is fixed by screws on the second flange 9.

[0032] The conical nozzle 8 has a wire groove 10 inside, and there are several wire grooves 10 along the circumference of the conical nozzle 8.

[0033] An arc-shaped rubber sheet 11 is fixed at the end of the conical nozzle 8 away from the wire cutting fluid spray pipe 3. Several arc-shaped rubber sheets 11 are arranged along the circumference of the conical nozzle 8, and there are angular gaps between the several arc-shaped rubber sheets 11.

[0034] In this embodiment, the cutting fluid is introduced into the cutting fluid spray pipe 3 through the inlet pipe 5. Since the inlet pipe 5 is perpendicular to the direction of the cutting fluid spray pipe 3, the cutting fluid directly hits the inner wall of the cutting fluid spray pipe 3 after entering, and then flows out along the thread 7 on the inner wall of the cutting fluid spray pipe 3. At the same time, it is sprayed out along the conical nozzle 8. When spraying, it contacts the groove 10 on the inner wall of the conical nozzle 8, thus ensuring that the spraying direction is along the axis of the conical nozzle 8. The conical nozzle 8 is installed parallel to the cutting line 2, so that the cutting fluid is sprayed out in a vertical direction. After spraying, it contacts the arc-shaped rubber sheet 11, which can wrap the cutting fluid and prevent it from spraying.

[0035] A flow guiding mechanism is further provided, including a fixing frame 12 fixed between the inner walls of the cutting fluid spray pipe 3. Two fixing frames 12 are provided at the upper and lower ends of the cutting fluid spray pipe 3, and a rotating shaft 13 is rotatably connected between the two fixing frames 12. A spiral blade 14 is fixed to the side of the rotating shaft 13, and several spiral blades 14 are provided along the circumferential direction and the axial direction of the rotating shaft 13. The rotating shaft 13 is hollow inside to allow the cutting line 2 to pass through.

[0036] Meanwhile, due to the internal thread 7 of the cutting fluid spray pipe 3, the time that the cutting fluid stays inside the cutting fluid spray pipe 3 is extended. At the same time, due to the vertical entry of the cutting fluid, it moves spirally along the thread 7 and can then hit the spiral blades 14, driving the rotating shaft 13 to rotate. When the rotating shaft 13 rotates, the spiral blades 14 can increase the flow rate and cooling efficiency of the cutting fluid. The working principle of this utility model is as follows: The cutting fluid spray pipe 3 is installed on the wire cutting machine body 1 by screws connected to the first flange 4. The cutting wire 2 enters the cutting fluid spray pipe 3 from the top and then passes into the rotating shaft 13. After passing through the rotating shaft 13, it is discharged along the conical nozzle 8. After the cutting fluid enters, it moves along the thread 7 on the inner wall of the cutting fluid spray pipe 3, while driving the rotating shaft 13 to rotate, increasing the flow rate of the cutting fluid. The accelerated cutting fluid is sprayed out along the conical nozzle 8. At the same time, a groove 10 is set inside the conical nozzle 8. Thus, the cutting fluid in the accelerated state maintains its stable spray direction under the combination of the thread 7 and the groove 10. Since the cutting fluid spray pipe 3 is designed for a conical workpiece, the cutting fluid can be sprayed vertically. At the same time, the accelerated spraying of the cutting fluid increases the spraying energy, thereby improving its efficiency in cooling the workpiece.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A nozzle mechanism for limiting the vertical position of the jet of a wire cutting machine, comprising a wire cutting machine body (1) and a cutting wire (2) mounted on the wire cutting machine body (1), characterized in that, The cutting line (2) is externally provided with a cutting liquid jet pipe (3), the first flange plate (4) is welded close to the wire cutting machine body (1) end of the cutting liquid jet pipe (3), the cutting liquid jet pipe (3) is fixed and plugged with the liquid inlet pipe (5) on the side, the electromagnetic valve (6) is fixed outside the liquid inlet pipe (5), the screw thread (7) is arranged on the inner wall of the cutting liquid jet pipe (3), and the flow guide mechanism is also rotatably connected inside the cutting liquid jet pipe (3), and the conical nozzle (8) is detachably connected to the bottom of the cutting liquid jet pipe (3).

2. The nozzle mechanism for limiting the vertical jet flow of a linear cutting machine according to claim 1, wherein: The second flange plate (9) is welded to the bottom of the cutting liquid jet pipe (3), and the conical nozzle (8) is screwed to the second flange plate (9).

3. The nozzle mechanism for limiting the vertical jet flow of a linear cutting machine according to claim 2, wherein: The wire slot (10) is arranged in the conical nozzle (8), and a plurality of wire slots (10) are arranged along the circumferential direction of the conical nozzle (8).

4. The nozzle mechanism for limiting the vertical jet flow of a linear cutting machine according to claim 2, wherein: The arc-shaped rubber sheet (11) is fixed to the end of the conical nozzle (8) away from the wire cutting liquid jet pipe (3), a plurality of arc-shaped rubber sheets (11) are arranged along the circumferential direction of the conical nozzle (8), and there is an angle gap between the plurality of arc-shaped rubber sheets (11).

5. The nozzle mechanism for limiting the vertical jet flow of a linear cutting machine according to claim 1, wherein: The flow guide mechanism comprises a fixed frame (12) fixed between the inner walls of the cutting liquid jet pipe (3), two fixed frames (12) are arranged at the upper and lower ends of the cutting liquid jet pipe (3), a rotating shaft (13) is rotatably connected between the two fixed frames (12), a spiral blade (14) is fixed on the side of the rotating shaft (13), and a plurality of spiral blades (14) are arranged along the circumferential direction and the axis direction of the rotating shaft (13).

6. The nozzle mechanism for limiting the vertical jet flow of a linear cutting machine according to claim 5, wherein: The rotating shaft (13) is hollow, and the cutting wire (2) passes through the rotating shaft (13).

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