Electric spark micro-hole machining device
Through the combined design of shuttle electrode guide rail and tungsten electrode, the processing difficulties of the electric spark perforator in small hole processing is solved, and high-precision and efficient micro-hole processing is achieved to meet the market's demand for small holes.
Patent Information
- Application Number
- CN202422354722.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-26
AI Technical Summary
When existing electric spark perforators are processing small holes, the use of central open-hole copper electrodes leads to difficulty in processing, and solid electrodes lead to low processing efficiency, making it difficult to meet the market demand for small holes.
The shuttle electrode guide rail and tungsten electrode are used, combined with the bonding design of electrode guide rails of different specifications and copper tubes to tungsten electrodes, ensuring the position accuracy of the small-diameter electrode when rotating at high speed, and discharge processing chips through the cleaning holes, and using tungsten electrodes to reduce losses.
The machining accuracy and depth of micro-holes are improved, the machining stability and efficiency are ensured, and the requirements of electrodes of different diameters are adapted to the needs of electrodes.
Smart Images
Figure CN223160166U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electric spark perforation, and particularly relates to an electric spark micro-hole machining device. Background Art
[0002] With the continuous development of the electric machining industry, electric spark perforation has become an indispensable application field in the electric machining industry. The electric spark perforator generates high temperature to corrode metal through the discharge between the electrode and the metal to achieve the purpose of perforation, and is widely used in processing fine holes of super-hard steel, cemented carbide, copper, aluminum and any conductive substances, and has broad application prospects in the field of precision die machining. It is generally used as a supporting equipment for electric spark wire cutting machine tools, and is used for wire threading holes for electric spark wire cutting, spinneret holes of chemical fiber spinnerets, spinneret holes of spinnerets, group holes of filter plates and sieve plates, heat dissipation holes of engine blades and cylinder blocks, oil passages and air passages of hydraulic and pneumatic valve bodies, etc.
[0003] At present, the machining aperture of domestic electric spark perforators is usually between Φ0.3 and Φ3.0 mm, but this machining ability can no longer meet the market demand. When machining small holes, in order to obtain better machining efficiency and stability, the machining party will use a copper electrode with a central opening. This electrode can achieve flushing through the central hole of the electrode during the machining process to facilitate better slag discharge. However, as the requirements for the aperture of dies and parts become smaller and smaller, the machining manufacturer has to use electrodes with smaller diameters, which makes it too difficult to open the central hole of the electrode. When the aperture is too small, only solid electrodes can be used for machining. And such solid electrodes with small apertures often lead to difficult machining and make the machining difficult to proceed. Summary of the Utility Model
[0004] In view of the above problems, the utility model provides an electric spark micro-hole machining device.
[0005] To achieve the above object, the utility model adopts the following technical scheme: An electric spark micro-hole machining device includes a machine tool main body, a main head is arranged on one side of the machine tool main body, an electrode guide rail is arranged at the bottom of the main head, an electrode main body is arranged at the bottom of the electrode guide rail, the electrode main body includes a copper tube and an electrode column, the copper tube is arranged at the bottom of the electrode guide rail, the electrode column is arranged at the bottom end of the copper tube, a workbench is arranged on the machine tool main body below the electrode main body, and a clamping mechanism is arranged on the surface of the workbench.
[0006] Preferably, the electrode main body penetrates through the electrode guide rail, an adhesive is arranged between the copper tube and the electrode column, and the copper tube and the electrode column are bonded through the adhesive.
[0007] Preferably, the copper tube adopts a copper tube with a diameter of Φ0.5 mm, and the material of the electrode column is a tungsten electrode.
[0008] Preferably, a control panel is provided on the front of the machine tool body, and the control panel is electrically connected to the main spindle head.
[0009] Preferably, the electrode guide rails are provided in a variety of specifications, and the diameter of the electrode guide rails is Φ0.3mm - 2.005mm.
[0010] Preferably, the shuttle electrode guide rail is adopted for the electrode guide rail, and cleaning holes for cleaning machining chips are provided on the outer wall of the electrode guide rail.
[0011] Preferably, four screws are provided at the bottom of the machine tool body, and adjusting nuts are threadedly connected to the bottom ends of the four screws.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. By selecting the shuttle electrode guide rail and passing a small-diameter electrode through the electrode guide rail in advance, the position accuracy of the small-diameter electrode during high-speed rotation can be ensured. By selecting electrode guide rails of different specifications, the machining accuracy for electrodes of different diameters can be ensured.
[0014] 2. By selecting tungsten electrodes as the electrode material, compared with copper electrodes, the loss is smaller, and the machining depth of micro-holes can be effectively increased. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the whole of the present utility model;
[0016] Figure 2 is a schematic structural diagram of the electrode body of the present utility model;
[0017] Figure 3 is a schematic structural diagram of the electrode guide rail of the present utility model.
[0018] In the figure: 1. Machine tool body; 2. Main spindle head; 3. Electrode guide rail; 4. Electrode body; 41. Copper tube; 42. Electrode column; 43. Adhesive; 5. Workbench; 6. Clamping mechanism; 7. Control panel; 8. Cleaning hole; 9. Screw; 10. Adjusting nut. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.
[0020] Refer to Figures 1-3, A micro-hole electric discharge machining device, including a machine tool body 1, a main head 2 is arranged on one side of the machine tool body 1, an electrode guide rail 3 is arranged at the bottom of the main head 2, an electrode body 4 is arranged at the bottom of the electrode guide rail 3, and the electrode body 4 penetrates through the electrode guide rail 3. It should be noted that the machine tool body 1 preferably adopts the EDFH1 fine-hole electric discharge machining machine produced in Japan, with better performance.
[0021] Furthermore, the electrode guide rail 3 has various specifications, and the diameter of the electrode guide rail 3 is Φ0.3mm - 2.005mm. The electrode guide rail 3 adopts a shuttle electrode guide rail, and a cleaning hole 8 for cleaning machining chips is arranged on the outer wall of the electrode guide rail 3. By selecting the shuttle electrode guide rail and passing a small-diameter electrode through the electrode guide rail in advance, the position accuracy of the small-diameter electrode during high-speed rotation can be ensured. By arranging the cleaning hole 8, it is convenient to discharge and clean the machining chips. In order to ensure the machining accuracy for electrodes of different diameters, different specifications of electrode guide rails can be selected.
[0022] Furthermore, the electrode body 4 includes a copper tube 41 and an electrode post 42. The copper tube 41 is arranged at the bottom of the electrode guide rail 3, the electrode post 42 is arranged at the bottom end of the copper tube 41, and an adhesive 43 is arranged between the copper tube 41 and the electrode post 42. The copper tube 41 and the electrode post 42 are bonded by the adhesive 43. The copper tube 41 adopts a copper tube with a diameter of Φ0.5mm, and the material of the electrode post 42 is a tungsten electrode. When choosing the tungsten electrode as the electrode material, compared with the copper electrode, its loss is smaller, and the machining depth of the micro-hole can be effectively increased. Since the electrode diameter is too small, a Φ0.5mm copper tube is used to bond with it for easy clamping.
[0023] In addition, a workbench 5 is arranged below the electrode body 4 on the machine tool body 1, a clamping mechanism 6 is arranged on the surface of the workbench 5, and the workbench 5 is used to place the workpiece to be machined, and the workpiece is restricted and fixed by the clamping mechanism 6.
[0024] In addition, a control panel 7 is arranged on the front of the machine tool body 1, and the control panel 7 is electrically connected to the main head 2, and operations and controls are carried out through the control panel 7.
[0025] In addition, four screw rods 9 are arranged at the bottom of the machine tool body 1, and adjusting nuts 10 are threadedly connected to the bottom ends of the four screw rods 9. By turning the adjusting nuts 10, the adjusting nuts 10 move up or down along the screw rods 9 to adjust the stability of the bottom of the machine tool body 1.
[0026] Now, the operation principle of the present utility model is described as follows: By selecting the shuttle electrode guide rail and passing a small-diameter electrode through the electrode guide rail in advance, the position accuracy of the small-diameter electrode during high-speed rotation can be ensured. In order to ensure the machining accuracy for electrodes of different diameters, different specifications of electrode guide rails can be selected. When choosing the tungsten electrode as the electrode material, compared with the copper electrode, its loss is smaller, and the machining depth of the micro-hole can be effectively increased.
[0027] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.
Claims
1. A micro-hole electrical discharge machining device, comprising a machine tool main body (1), characterized in that, On one side of the machine tool main body (1), there is a main spindle head (2). At the bottom of the main spindle head (2), there is an electrode guide rail (3). At the bottom of the electrode guide rail (3), there is an electrode main body (4). The electrode main body (4) includes a copper tube (41) and an electrode post (42). The copper tube (41) is arranged at the bottom of the electrode guide rail (3), and the electrode post (42) is arranged at the bottom end of the copper tube (41). On the machine tool main body (1) and below the electrode main body (4), there is a workbench (5). On the surface of the workbench (5), there is a clamping mechanism (6). The electrode main body (4) penetrates through the electrode guide rail (3). Between the copper tube (41) and the electrode post (42), there is an adhesive (43). The copper tube (41) and the electrode post (42) are bonded by the adhesive (43). The copper tube (41) is a copper tube with a diameter of Φ0.5mm, and the material of the electrode post (42) is a tungsten electrode.
2. The micro-hole electrical discharge machining device according to claim 1, wherein On the front of the machine tool main body (1), there is a control panel (7). The control panel (7) is electrically connected to the main spindle head (2).
3. The electro-discharge micro-hole machining device according to claim 1, wherein, The electrode guide rail (3) has multiple specifications, and the diameter of the electrode guide rail (3) is Φ0.3mm - 2.005mm.
4. A micro-hole electrical discharge machining device according to claim 1, characterized in that, The electrode guide rail (3) adopts a shuttle electrode guide rail. On the outer wall of the electrode guide rail (3), there are cleaning holes (8) for cleaning machining chips.
5. A micro-hole electrical discharge machining device according to claim 1, characterized in that, At the bottom of the machine tool main body (1), there are four screws (9). At the bottom ends of the four screws (9), there are adjusting nuts (10) threadedly connected thereto.