Special-shaped spinneret hole electric spark machining device

Abstract

The utility model discloses a special-shaped spinneret orifice electric spark machining device, which relates to the technical field of spinneret plate micropore machining equipment and comprises a liquid storage tank, an electric spark machining mechanism, a clamping mechanism, a support plate, a clamping plate and a guide support block. The hydraulic cylinder can drive the clamping plate to do horizontal reciprocating motion, the guide supporting block firstly makes contact with the bottom of the spinneret plate during clamping, the guide supporting block can support the spinneret plate, the spinneret plate moves upwards along the inclined face of the guide supporting block, and after the spinneret plate moves to the horizontal plane of the top of the guide supporting block, the clamping plate clamps and fixes the spinneret plate. The safety and the stability of the spinneret plate in the electric spark machining process can be effectively guaranteed; and the guide supporting block supports the bottom of the spinneret plate, overhead clamping and supporting can be effectively carried out on the spinneret plate, when electric spark punching treatment is carried out on the spinneret plate, enough space can be reserved at the bottom of the spinneret plate, and therefore the situation that a supporting part is damaged when punching is carried out on the spinneret plate is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of spinneret micro-hole processing equipment, specifically to an electrical discharge machining device for irregularly shaped spinnerets. Background Technology

[0002] A spinneret, also known as a spinning cap, is used to transform viscous polymer melts or solutions into fine streams with specific cross-sectional shapes through micropores. These streams are then solidified by a coagulation medium to form filaments. Fibers with non-circular cross-sections or hollow fibers spun using irregularly shaped spinnerets are called irregularly shaped cross-section fibers, or simply irregularly shaped fibers.

[0003] Patent (CN222326921U) discloses an angle-adjustable EDM drilling device for irregularly shaped holes. It uses a rotating mechanism to drive a placement table to rotate, and a flipping mechanism and an auxiliary mechanism to adjust the angle of a moving plate. This allows for drilling operations according to actual needs, improving work efficiency and practicality. The device is mounted on a first mounting plate. Two first fixed plates are symmetrically fixed on a base plate, and a moving plate is attached to each first fixed plate. A rotating mechanism is mounted on the moving plate, including a working plate fixedly connected to the moving plate. A second mounting plate is fixedly mounted on the moving plate, and a motor is fixedly mounted on the second mounting plate. A first synchronous pulley is fixedly mounted on the output end of the motor, and a second synchronous pulley is rotatably mounted on the working plate. The first and second synchronous pulleys are connected by a belt.

[0004] The irregular hole EDM drilling device in the aforementioned patent requires the spinneret to be placed on top of the placement table when drilling the spinneret. However, the placement table does not have any fixing parts for the spinneret, and drilling the spinneret can easily damage the placement table. Utility Model Content

[0005] The purpose of this invention is to provide an electrical discharge machining device for irregularly shaped spinnerets, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an electrical discharge machining (EDM) device for irregularly shaped spinnerets, comprising a liquid storage tank, an EDM mechanism, and a clamping mechanism. The clamping mechanism is movably disposed inside the liquid storage tank, and the EDM mechanism is disposed on the top of the liquid storage tank. The clamping mechanism includes a base plate, a hydraulic cylinder, and two symmetrically arranged support plates. The support plates are horizontally slidably disposed on the top of the base plate. One end of the hydraulic cylinder is fixedly connected to the outer wall of one of the support plates. The support plates are vertically provided with a plurality of clamping plates. A guide block is provided at the bottom of the adjacent side of the outer wall of the clamping plates at the top of the two support plates. The cross-section of the guide block is a right-angled trapezoidal structure, and the inclined surface of the guide block is disposed on the side away from the clamping plate, and the inclined surface is upward.

[0007] Furthermore, the top of the liquid storage tank is provided with an opening, and the end of the hydraulic cylinder away from the support plate is fixedly connected to the base plate.

[0008] Furthermore, the clamping mechanism includes several vertically arranged cylinders, one end of which is fixedly connected to the base plate, and the other end of which is fixedly connected to the top of the inner wall of the liquid storage tank.

[0009] Furthermore, a gear is provided at the top of the base plate between the two support plates for rotational connection, and a rack is provided horizontally on the outer wall of the support plate for meshing with the gear, with the two racks respectively located on both sides of the gear.

[0010] Furthermore, the electrical discharge machining mechanism includes an X-axis electric slide, a Y-axis electric slide, a Z-axis electric slide, and an electrical discharge machining assembly. The Y-axis electric slide is fixedly connected to the X-axis slide of the X-axis electric slide, the Z-axis electric slide is fixedly connected to the Y-axis slide of the Y-axis electric slide, and the electrical discharge machining assembly is fixedly connected to the Z-axis slide of the Z-axis electric slide.

[0011] Furthermore, the electrical discharge machining assembly includes a servo cylinder, a chuck, a guide sleeve, and a drilling electrode. The servo cylinder is fixedly connected to the Z-axis slide, and the output end of the servo cylinder is fixedly connected to the top of the chuck. The guide sleeve is located directly below the chuck and is fixedly connected to the bottom of the outer wall of the Z-axis electric slide. The top of the drilling electrode is fixedly connected to the chuck, and the bottom of the drilling electrode passes through the guide sleeve and extends below the guide sleeve.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0013] 1. This utility model comprises a liquid storage tank, an electrical discharge machining (EDM) mechanism, a clamping mechanism, a support plate, a clamping plate, and a guide block. The base plate in the clamping mechanism supports the support plate and the hydraulic cylinder. The hydraulic cylinder can horizontally reciprocate the support plate, thereby achieving horizontal reciprocating motion of the clamping plate. The clamping plates on the two support plates cooperate to clamp and fix the spinneret to be processed on both sides. When the clamping plates clamp and fix the spinneret, the guide block first contacts the bottom of the spinneret. As the distance between the clamping plates on the two support plates continues to decrease... The guide block lifts the spinneret, which moves upward along the inclined surface of the guide block. After the spinneret reaches the horizontal plane at the top of the guide block, the clamping plate clamps and fixes the spinneret, effectively ensuring the safety and stability of the spinneret during the EDM process. Furthermore, the guide block supports the bottom of the spinneret, effectively providing overhead clamping support. When performing EDM drilling on the spinneret, sufficient space can be left at the bottom of the spinneret, thus effectively preventing damage to the supporting components during drilling.

[0014] 2. In this utility model, the cylinder can drive the base plate to move up and down, so that the clamping plate and guide block are moved out of the working fluid, and then the spinneret is placed. The clamping plate clamps and fixes the spinneret, and then the base plate is adjusted to move down, so that the spinneret is moved into the working fluid. After the irregular spinneret hole of the spinneret is processed, the base plate is adjusted to move up, and then the clamping mechanism is released to take out the spinneret. The operation is convenient and quick. The X-axis electric slide, Y-axis electric slide and Z-axis electric slide can cooperate to realize the displacement adjustment of the EDM component in three-dimensional space. It can effectively ensure that the EDM component can perform drilling operations at different positions on the surface of the spinneret, and the EDM component can perform precise small-range displacement to ensure that the EDM component can normally perform irregular spinneret hole processing operations. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

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

[0017] Figure 2 This is a schematic diagram of the clamping mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the support plate of this utility model;

[0019] Figure 4 This is a schematic diagram of the electrical discharge machining mechanism of this utility model;

[0020] Figure 5 This is a utility model Figure 4 Enlarged view of point A in the middle;

[0021] In the diagram: 1. Liquid reservoir; 101. Opening; 2. Electrical discharge machining (EDM) mechanism; 201. X-axis electric slide; 202. Y-axis electric slide; 203. Z-axis electric slide; 204. EDM assembly; 205. X-axis slide; 206. Y-axis slide; 207. Z-axis slide; 208. Servo cylinder; 209. Chuck; 210. Guide sleeve; 211. Drilling electrode; 3. Clamping mechanism; 301. Base plate; 302. Hydraulic cylinder; 303. Support plate; 304. Clamping plate; 305. Guide block; 306. Cylinder; 307. Gear; 308. Rack. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-5 This utility model provides a technical solution: an electrical discharge machining (EDM) device for irregularly shaped spinnerets, comprising a liquid storage tank 1, an EDM mechanism 2, and a clamping mechanism 3. The clamping mechanism 3 is movably disposed inside the liquid storage tank 1, and the EDM mechanism 2 is disposed on the top of the liquid storage tank 1. The clamping mechanism 3 includes a base plate 301, a hydraulic cylinder 302 (the hydraulic cylinder 302 needs to meet the condition of long-term use in liquid), and two symmetrically arranged support plates 303. The support plates 303 are horizontally slidably disposed on the top of the base plate 301. The hydraulic cylinder 302... The clamping mechanism 3 is fixedly connected to the outer wall of a support plate 303. The support plate 303 is vertically provided with several clamping plates 304. Guide blocks 305 are provided at the bottom of adjacent sides of the outer walls of the clamping plates 304 at the top of two support plates 303. The guide blocks 305 have a right-angled trapezoidal cross-section, and their inclined surfaces are located away from the clamping plates 304, with the inclined surfaces facing upwards. The clamping mechanism 3 includes several vertically arranged cylinders 306. One end of each cylinder 306 is fixedly connected to the base plate 301, and the other end of each cylinder 306... The end is fixedly connected to the top of the inner wall of the liquid storage tank 1; the electrical discharge machining mechanism 2 includes an X-axis electric slide 201, a Y-axis electric slide 202, a Z-axis electric slide 203, and an electrical discharge machining assembly 204. The Y-axis electric slide 202 is fixedly connected to the X-axis slide 205 of the X-axis electric slide 201, the Z-axis electric slide 203 is fixedly connected to the Y-axis slide 206 of the Y-axis electric slide 202, and the electrical discharge machining assembly 204 is fixedly connected to the Z-axis slide 207 of the Z-axis electric slide 203; the electrical discharge machining assembly 204... 04 includes a servo electric cylinder 208, a chuck 209, a guide sleeve 210, and a drilling electrode 211. The servo electric cylinder 208 is fixedly connected to the Z-axis slide 207. The output end of the servo electric cylinder 208 is fixedly connected to the top of the chuck 209. The guide sleeve 210 is located directly below the chuck 209 and is fixedly connected to the bottom of the outer wall of the Z-axis electric slide 203. The top of the drilling electrode 211 is fixedly connected to the chuck 209, and the bottom of the drilling electrode 211 passes through the guide sleeve 210 and extends below the guide sleeve 210.

[0024] In one embodiment, the liquid storage tank 1 is provided with an opening 101 at the top, and the liquid storage tank 1 is designed as an open-top design, which makes it easy to put the spinneret into the liquid storage tank 1 and also makes it easy to take the spinneret out of the liquid storage tank 1. The end of the hydraulic cylinder 302 away from the support plate 303 is fixedly connected to the base plate 301 to ensure the safety and stability of the hydraulic cylinder 302.

[0025] In one embodiment, a gear 307 is rotatably connected to the top of the base plate 301 between two support plates 303. A rack 308 is horizontally provided on the outer wall of the support plate 303 to mesh with the gear 307, and the two racks 308 are respectively located on both sides of the gear 307. The gear 307 rotates and supports between the two racks 308. When one support plate 303 moves horizontally under the drive of the hydraulic cylinder 302, the support plate 303 drives the rack 308 to move horizontally. The rack 308 drives the gear 307 to rotate. The gear 307 drives the other rack 308 to move horizontally. The horizontal movement directions of the two racks 308 are opposite, which can drive the two support plates 303 to move synchronously, so as to realize the clamping plate 304 to quickly clamp or release the spinneret, which is convenient and quick to operate.

[0026] The working principle of this utility model:

[0027] Refer to the instruction manual appendix Figures 1-5 This utility model comprises a liquid storage tank 1, an electrical discharge machining (EDM) mechanism 2, a clamping mechanism 3, a support plate 303, a clamping plate 304, and a guide block 305. The liquid storage tank 1 is filled with working fluid (kerosene, deionized water, or emulsion) to provide processing space for EDM. The clamping mechanism 3 provides a clamping station for the spinneret to be processed inside the liquid storage tank 1. The EDM mechanism 2 is used to process irregular spinneret holes on the spinneret on the clamping mechanism 3. The base plate 301 of the clamping mechanism 3 supports the support plate 303 and the hydraulic cylinder 302. The hydraulic cylinder 302 can horizontally reciprocate the support plate 303, thereby realizing the horizontal reciprocating motion of the clamping plate 304. The clamping plates 304 on the two support plates 303 cooperate to perform horizontal reciprocating motion on both sides of the spinneret to be processed. In the clamping and fixing process, when the clamping plate 304 clamps and fixes the spinneret, the guide block 305 first contacts the bottom of the spinneret. As the distance between the clamping plates 304 on the two support plates 303 continues to decrease, the guide block 305 can lift the spinneret. The spinneret moves upward along the inclined surface of the guide block 305. After the spinneret moves to the horizontal plane at the top of the guide block 305, the clamping plate 304 clamps and fixes the spinneret, which can effectively ensure the safety and stability of the spinneret during the EDM process. In addition, the guide block 305 supports the bottom of the spinneret, which can effectively support the spinneret in the air. When the spinneret is subjected to EDM drilling, sufficient space can be left at the bottom of the spinneret, thereby effectively avoiding damage to the support components when drilling the spinneret.

[0028] Before the clamping mechanism 3 starts working, the cylinder 306 can be adjusted to extend and retract. The cylinder 306 drives the base plate 301 to move up and down, and the base plate 301 drives the entire clamping mechanism 3 to move up and down, so that the clamping plate 304 and the guide block 305 are removed from the working fluid. Then the spinneret is placed, and the clamping plate 304 clamps and fixes the spinneret. Then the base plate 301 is adjusted to move down, so that the spinneret moves down into the working fluid. After the irregular spinneret holes of the spinneret are processed, the base plate 301 is adjusted to move up, and then the clamping mechanism 3 is released to take out the spinneret. The operation is convenient and quick.

[0029] When the electrical discharge machining mechanism 2 is working, the X-axis electric slide 201, Y-axis electric slide 202 and Z-axis electric slide 203 work together to realize the displacement adjustment of the electrical discharge machining component 204 in three-dimensional space. This can effectively ensure that the electrical discharge machining component 204 can perform drilling operations at different positions on the spinneret surface, and the electrical discharge machining component 204 can perform precise small-range displacement, ensuring that the electrical discharge machining component 204 can normally perform the machining operation of irregular spinneret holes.

[0030] When the EDM assembly 204 is working, the spinneret to be processed is connected to the positive terminal of the pulse power supply, and the drilling electrode 211 is connected to the negative terminal of the pulse power supply. The chuck 209 is connected to the top of the drilling electrode 211 to ensure the stability of the drilling electrode 211. The guide sleeve 210 provides auxiliary guidance for the drilling electrode 211, which can further improve the stability of the drilling electrode 211. The extension and retraction of the servo cylinder 208 can drive the drilling electrode 211 to move up and down independently through the chuck 209. The drilling electrode 211 enters the working fluid. When a pulse voltage is applied between the drilling electrode 211 and the spinneret, and when an appropriate gap is maintained between the spinneret and the drilling electrode 211, the spinneret and the drilling electrode 211 will be... The working fluid medium breaks down between the two, forming a discharge channel; instantaneous high temperature is generated in the discharge channel, causing the material on the spinneret surface to melt or even vaporize, and at the same time, the working fluid medium vaporizes. Rapid thermal expansion and explosion occur at the discharge gap, and a small part of the material on the spinneret surface is eroded and thrown out, forming tiny electrolytic pits; after the pulse discharge ends, after a period of time, the working fluid is restored to insulation; the pulse voltage is repeatedly applied to the spinneret and the drilling electrode 211, and the above process is repeated continuously, and the workpiece material is gradually eroded away; the servo system continuously adjusts the relative position of the spinneret and the drilling electrode 211, and automatically feeds to ensure that the pulse discharge proceeds normally until the required irregular spinneret hole is processed on the spinneret.

[0031] 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. An electrical discharge machining (EDM) device for irregularly shaped spinnerets, comprising a liquid storage tank (1), an EDM mechanism (2), and a clamping mechanism (3), characterized in that: The clamping mechanism (3) is movably disposed inside the liquid storage tank (1), and the electrical discharge machining mechanism (2) is disposed on the top of the liquid storage tank (1). The clamping mechanism (3) includes a base plate (301), a hydraulic cylinder (302), and two symmetrically arranged support plates (303). The support plate (303) is horizontally slidably disposed on the top of the base plate (301). One end of the hydraulic cylinder (302) is fixedly connected to the outer wall of one support plate (303). The support plate (303) is vertically provided with several clamping plates (304). The bottom of the outer wall of the clamping plate (304) at the top of the two support plates (303) is provided with a guide block (305). The cross-section of the guide block (305) is a right-angled trapezoidal structure. The inclined surface of the guide block (305) is disposed on the side away from the clamping plate (304) and the inclined surface is upward.

2. The EDM apparatus for irregularly shaped spinnerets according to claim 1, characterized in that: The liquid storage tank (1) has an opening (101) at the top, and the end of the hydraulic cylinder (302) away from the support plate (303) is fixedly connected to the bottom plate (301).

3. The electrical discharge machining apparatus for irregularly shaped spinnerets according to claim 1, characterized in that: The clamping mechanism (3) includes several vertically arranged cylinders (306), one end of which is fixedly connected to the base plate (301), and the other end of which is fixedly connected to the top of the inner wall of the liquid storage tank (1).

4. The electrical discharge machining apparatus for irregularly shaped spinnerets according to claim 1, characterized in that: The bottom plate (301) has a gear (307) rotatably connected between the two support plates (303) at the top. The outer wall of the support plate (303) is horizontally provided with a rack (308) that meshes with the gear (307), and the two racks (308) are respectively located on both sides of the gear (307).

5. The electrical discharge machining apparatus for irregularly shaped spinnerets according to claim 1, characterized in that: The electrical discharge machining mechanism (2) includes an X-axis electric slide (201), a Y-axis electric slide (202), a Z-axis electric slide (203), and an electrical discharge machining assembly (204). The Y-axis electric slide (202) is fixedly connected to the X-axis slide (205) of the X-axis electric slide (201). The Z-axis electric slide (203) is fixedly connected to the Y-axis slide (206) of the Y-axis electric slide (202). The electrical discharge machining assembly (204) is fixedly connected to the Z-axis slide (207) of the Z-axis electric slide (203).

6. The electrical discharge machining apparatus for irregularly shaped spinnerets according to claim 5, characterized in that: The electrical discharge machining assembly (204) includes a servo cylinder (208), a chuck (209), a guide sleeve (210), and a drilling electrode (211). The servo cylinder (208) is fixedly connected to the Z-axis slide (207), and the output end of the servo cylinder (208) is fixedly connected to the top of the chuck (209). The guide sleeve (210) is located directly below the chuck (209) and is fixedly connected to the bottom of the outer wall of the Z-axis electric slide (203). The top of the drilling electrode (211) is fixedly connected to the chuck (209), and the bottom of the drilling electrode (211) passes through the guide sleeve (210) and extends below the guide sleeve (210).

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