Three-head electric discharge machine forming machine

Abstract

The utility model discloses a three-head electric spark machine forming machine which is characterized in that a workbench is arranged on one side of a lathe bed, a fixed seat is arranged at the top end of the lathe bed, X-axis guide rails are arranged on two sides of the fixed seat, an X-axis linear motor stator is arranged in the middle of the fixed seat, and three electric spark main shaft assemblies are in sliding fit with the X-axis guide rails; the electric spark machine tool is reasonable in structure, the machine tool body is provided with the three electric spark main shaft assemblies, the three electric spark main shaft assemblies share the X-axis guide rail and the X-axis linear motor stator, electrode main shafts of the three electric spark main shaft assemblies can all achieve three-axis movement, respective movement is convenient, and the electric spark machine tool is high in machining precision and high in machining precision. And meanwhile, the anti-collision rods are arranged on the two sides of the X-axis sliding seats of the three electric spark main shaft assemblies, and the rubber pads are arranged at the outer ends of the anti-collision rods, so that collision of the electric spark main shaft assemblies caused by misoperation can be prevented, and the safety is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric discharge machining machines, in particular to a three-head electric discharge machining machine. Background Technique

[0002] An electric discharge machine tool, also known as a numerically controlled electric discharge machine tool, electric discharge machine, spark machine, etc., is an electro-machining device.

[0003] In order to solve the problem of difficult-to-machine materials such as cemented carbide in CNC machining, the application range of electric discharge machining machine tools is becoming wider and wider. At present, the market is mainly dominated by cross-table type, single-head and double-head electric discharge machining machine tools. They all have the problem of low machining efficiency at the same time, and there is room for further improvement in machining efficiency. Moreover, there is a risk of collision between the two heads of the double-head electric discharge machine tool due to operating errors. Therefore, an improved technology is urgently needed to solve the above problems existing in the prior art. Content of the Utility Model

[0004] The purpose of the utility model is to provide a three-head electric discharge machining machine, in which three electric discharge spindle assemblies are installed on the machine body, and the three electric discharge spindle assemblies share the X-axis guide rail and the X-axis linear motor stator. The electrode spindles of the three electric discharge spindle assemblies can all achieve three-axis movement, which is convenient for each movement, saves the cost of the machine tool, and is convenient for transportation. The machining efficiency for large workpieces is greatly improved. At the same time, anti-collision bars are arranged on both sides of the X-axis slide of the three electric discharge spindle assemblies, and rubber pads are arranged at the outer ends of the anti-collision bars, which can prevent the electric discharge spindle assemblies from colliding due to operating errors, and the safety is greatly improved, so as to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a three-head electric discharge machining machine, including a machine frame and an electric discharge spindle assembly;

[0006] The machine frame includes a machine body, a workbench and a fixed seat. A workbench is arranged on one side of the machine body, a fixed seat is arranged at the top of the machine body, X-axis guide rails are arranged on both sides of the fixed seat, and an X-axis linear motor stator is arranged at the middle position of the fixed seat;

[0007] There are three electric discharge machining spindle assemblies, all of which are slidably fitted with the X-axis guide rail. The electric discharge machining spindle assembly includes an X-axis slide base, a Y-axis slide base, a column, and an electrode spindle. The two sides of the bottom of the X-axis slide base are slidably fitted with the X-axis guide rail through X-axis sliders. The two sides of the lower surface of the Y-axis slide base are provided with Y-axis guide rails. The two sides of the upper surface of the X-axis slide base are slidably fitted with the Y-axis guide rails through Y-axis sliders. Two screw holes are provided on both sides of the X-axis slide base. Anti-collision bars are installed on both sides of the X-axis slide base at the positions of the screw holes. Rubber pads are provided at the outer ends of the anti-collision bars. A column is provided at one end of the Y-axis slide base on the workbench. Z-axis sliders are provided on both sides of the outer surface of the column. Z-axis guide rails are provided on both sides of the electrode spindle. The Z-axis guide rails are slidably fitted with the Z-axis sliders.

[0008] Preferably, for a three-head electric discharge machining forming machine provided by the present utility model, a linear motor mover is provided at the bottom end of the X-axis slide base, and the linear motor mover cooperates with an X-axis linear motor stator.

[0009] Preferably, for a three-head electric discharge machining forming machine provided by the present utility model, a support plate is provided at one end of the Y-axis slide base away from the column. A second motor is provided on the upper surface of the support plate. The output shaft of the second motor is connected to one end of a Y-axis lead screw. A lead screw seat is provided at one end of the Y-axis slide base close to the column. The end of the Y-axis lead screw away from the second motor is rotationally connected to the lead screw seat.

[0010] Preferably, for a three-head electric discharge machining forming machine provided by the present utility model, a cross beam is provided at the upper end inside the X-axis slide base. A fixing block is provided on the upper surface of the cross beam. The fixing block is provided with a first lead screw pair nut, and the first lead screw pair nut cooperates with the Y-axis lead screw.

[0011] Preferably, for a three-head electric discharge machining forming machine provided by the present utility model, a third motor is provided at the top end of the column. The output shaft of the third motor is connected to the top end of a Z-axis lead screw. The electrode spindle is provided with a second lead screw pair nut, and the Z-axis lead screw is connected to the electrode spindle through the second lead screw pair nut.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] Three electric discharge machining spindle assemblies are installed on the bed, and the three electric discharge machining spindle assemblies share the X-axis guide rail and the X-axis linear motor stator. The electrode spindles of the three electric discharge machining spindle assemblies can all achieve three-axis movement, with convenient individual movement, saving the cost of the machine tool and being convenient for transportation. The processing efficiency for large workpieces is greatly improved. At the same time, anti-collision bars are provided on both sides of the X-axis slide bases of the three electric discharge machining spindle assemblies, and rubber pads are provided at the outer ends of the anti-collision bars, which can prevent the electric discharge machining spindle assemblies from colliding due to operating errors, and the safety is greatly improved. Description of the Drawings

[0014] Figure 1 is a schematic structural view of the present utility model;

[0015] Figure 2 is an enlarged schematic structural view of the connection between the X-axis slide and the fixed seat of the present utility model;

[0016] Figure 3 is a schematic structural view of the present utility model at the X-axis slide and the Y-axis slide;

[0017] Figure 4 is a schematic structural view of the present utility model at the fixed seat;

[0018] Figure 5 is a top schematic structural view of the present utility model at the electrode main shaft.

[0019] In the figure: bed body 1, workbench 2, fixed seat 3, X-axis guide rail 4, X-axis linear motor stator 5, X-axis slide 6, Y-axis slide 7, column 8, electrode main shaft 9, X-axis slider 10, Y-axis guide rail 11, Y-axis slider 12, screw hole 13, anti-collision bar 14, rubber pad 15, Z-axis slider 16, Z-axis guide rail 17, linear motor mover 18, support plate 19, second motor 20, Y-axis lead screw 21, lead screw seat 22, cross beam 23, fixed block 24, first lead screw pair nut 25, third motor 26, Z-axis lead screw 27, second lead screw pair nut 28. Specific embodiments

[0020] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments and drawings of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model;

[0021] It should be noted that in the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0022] Please refer to Figures 1-5, the present utility model provides a technical solution: a three-head electric discharge machine forming machine, including a machine frame and an electric discharge spindle assembly; the machine frame includes a bed 1, a workbench 2 and a fixed seat 3. A workbench 2 is arranged on one side of the bed 1, a fixed seat 3 is arranged at the top of the bed 1, X-axis guide rails 4 are arranged on both sides of the fixed seat 3, and an X-axis linear motor stator 5 is arranged at the middle position of the fixed seat 3; there are three electric discharge spindle assemblies, all of which are slidably matched with the X-axis guide rails 4. The electric discharge spindle assembly includes an X-axis slide 6, a Y-axis slide 7, a column 8 and an electrode spindle 9. Both sides of the bottom of the X-axis slide 6 are slidably matched with the X-axis guide rails 4 through X-axis sliders 10. A linear motor mover 18 is arranged at the bottom end of the X-axis slide 6, and the linear motor mover 18 cooperates with the X-axis linear motor stator 5 to realize the movement of the X-axis slide 6 along the X-axis guide rails 4. Y-axis guide rails 11 are arranged on both sides of the lower surface of the Y-axis slide 7. Both sides of the upper surface of the X-axis slide 6 are slidably matched with the Y-axis guide rails 11 through Y-axis sliders 12. A support plate 19 is arranged at one end of the Y-axis slide 7 away from the column 8. A second motor 20 is arranged on the upper surface of the support plate 19. The output shaft of the second motor 20 is connected to one end of a Y-axis lead screw 21. A lead screw seat 22 is arranged at one end of the Y-axis slide 7 close to the column 8. The Y-axis lead screw 21 is rotatably connected to the lead screw seat 22 away from the second motor 20. The installation of the second motor 20 is realized through the support plate 19, and the linkage with the X-axis slide 6 is realized through the cooperation of the second motor 20 and the Y-axis lead screw 21. A cross beam 23 is arranged at the upper end inside the X-axis slide 6. A fixing block 24 is arranged on the upper surface of the cross beam 23. The fixing block 24 is provided with a first lead screw pair nut 25. The first lead screw pair nut 25 cooperates with the Y-axis lead screw 21. By installing the fixing block 24 and the first lead screw pair nut 25 above the X-axis slide 6, the cooperation with the Y-axis lead screw 21 is realized, so as to realize the movement of the Y-axis slide 7 along the Y-axis guide rails 11. Two screw holes 13 are opened on both sides of the X-axis slide 6. Anti-collision rods 14 are installed at both sides of the X-axis slide 6 at the positions of the screw holes 13. The anti-collision rods 14 are threadedly connected to the screw holes 13 opened on the X-axis slide 6 through external threads. The anti-collision rods 14 are connected to the X-axis slide 6 through threads, which is convenient for the installation and disassembly of the anti-collision rods 14. Rubber pads 15 are arranged at the outer ends of the anti-collision rods 14. A column 8 is arranged at one end of the Y-axis slide 7 located on the workbench 2. Z-axis sliders 16 are arranged on both sides of the outer surface of the column 8. Z-axis guide rails 17 are arranged on both sides of the electrode spindle 9. The Z-axis guide rails 17 are slidably matched with the Z-axis sliders 16. A third motor 26 is arranged at the top of the column 8. The output shaft of the third motor 26 is connected to the top end of a Z-axis lead screw 27. The electrode spindle 9 is provided with a second lead screw pair nut 28. The Z-axis lead screw 27 is connected to the electrode spindle 9 through the second lead screw pair nut 28. Through the cooperation of the Z-axis lead screw 27 and the second lead screw pair nut 28, the electrode spindle 9 is lifted and lowered along the Z-axis.

[0023] Installation method and working principle: First, install the linear motor mover 18 at the bottom of the X-axis slide 6. Then, slide the X-axis slide 6 on the X-axis guide rail 4 on the upper surface of the fixed base 3 through the X-axis slider 10, and install the anti-collision rod 14 with a rubber pad 15 at the screw holes 13 on both sides of the X-axis slide 6 by means of threaded installation. At the same time, make the linear motor mover 18 cooperate with the X-axis linear motor stator 5. Next, slide the X-axis slide 6 on the Y-axis guide rail 11 at the bottom of the Y-axis slide 7 through the Y-axis slider 12, and at the same time pass the Y-axis lead screw 21 through the Y-axis lead screw 21 sub-nut on the upper part of the X-axis slide 6. Install the second motor 20 on the support plate 19 in the Y-axis slide 7, and at the same time connect the Y-axis lead screw 21 to the output shaft of the second motor 20 through a coupling to complete the connection between the X-axis slide 6 and the Y-axis slide 7. Connect one end of the Y-axis slide 7 to the column 8, install the third motor 26 at the top of the column 8, and connect the top of the Z-axis lead screw 27 to the output shaft of the third motor 26. Then, make the electrode spindle 9 cooperate with the Z-axis sliders 16 on both sides of the column 8 through the Z-axis slider 16, and at the same time pass the Z-axis lead screw 27 through the Z-axis lead screw 27 sub-nut of the electrode spindle 9 to complete the installation. When in use, each of the three electric discharge spindle assemblies slides along the X-axis guide rail 4 through the cooperation of the linear motor mover 18 and the X-axis linear motor stator 5. The Y-axis slide 7 slides along the Y-axis guide rail 11 through the cooperation of the second motor 20, the Y-axis lead screw 21 and the Y-axis lead screw 21 sub-nut. The electrode spindle 9 slides along the Z-axis guide rail 17 through the cooperation of the second motor 20, the Z-axis lead screw 27 and the Z-axis lead screw 27 sub-nut, so that the three electrode spindles 9 respectively realize the movement of the X, Y, and Z axes. The structure of the present utility model is reasonable. The machine bed 1 is equipped with three electric discharge spindle assemblies, and the three electric discharge spindle assemblies share the X-axis guide rail 4 and the X-axis linear motor stator 5. The electrode spindles 9 of the three electric discharge spindle assemblies can all realize the movement of three axes, and their respective movements are convenient, saving the cost of the machine tool and facilitating transportation. The processing efficiency of large workpieces is greatly improved. At the same time, anti-collision rods 14 are provided on both sides of the X-axis slide 6 of the three electric discharge spindle assemblies, and rubber pads 15 are provided at the outer ends of the anti-collision rods 14, which can prevent the electric discharge spindle assemblies from colliding due to operating errors, and the safety is greatly improved.

[0024] For those parts not detailed in the present utility model, they are all well-known technologies to those skilled in the art.

[0025] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit them. Although the present utility model has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified and equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A three-bullhead EDM forming machine, characterized in that: Including the frame and EDM spindle assembly; The frame comprises a bed (1), a workbench (2) and a fixed seat (3); the workbench (2) is arranged on one side of the bed (1); the fixed seat (3) is arranged on the top of the bed (1); X-axis guide rails (4) are arranged on both sides of the fixed seat (3); and an X-axis linear motor stator (5) is arranged in the middle of the fixed seat (3); The electric spark spindle assembly has three parts and all of them are slidably matched with the X-axis guide rail (4). The electric spark spindle assembly comprises an X-axis slide (6), a Y-axis slide (7), a column (8) and an electrode spindle (9). The two sides of the bottom of the X-axis slide (6) are slidably matched with the X-axis guide rail (4) through X-axis sliders (10). The two sides of the lower surface of the Y-axis slide (7) are provided with Y-axis guide rails (11). The two sides of the upper surface of the X-axis slide (6) are slidably matched with the Y-axis guide rail (11) through Y-axis sliders (12). Two screw holes (13) are provided on both sides of the seat (6); anti-collision rods (14) are installed at the screw holes (13) on both sides of the X-axis slide seat (6); rubber pads (15) are provided at the outer ends of the anti-collision rods (14); a column (8) is provided at one end of the workbench (2); Z-axis sliders (16) are provided on both sides of the outer surface of the column (8); Z-axis guide rails (17) are provided on both sides of the electrode spindle (9); and the Z-axis guide rails (17) are slidably matched with the Z-axis slider (16).

2. A three-bullhead EDM forming machine according to claim 1, characterized in that: A linear motor mover (18) is provided at the bottom end of the X-axis slide seat (6), and the linear motor mover (18) cooperates with the X-axis linear motor stator (5).

3. The three-bullhead EDM forming machine according to claim 1, characterized in that: A support plate (19) is arranged at one end of the Y-axis slide (7) away from the column (8), a second motor (20) is arranged on the upper surface of the support plate (19), an output shaft of the second motor (20) is connected to one end of a Y-axis lead screw (21), a lead screw seat (22) is arranged at one end of the Y-axis slide (7) close to the column (8), and an end of the Y-axis lead screw (21) away from the second motor (20) is rotatably connected to the lead screw seat (22).

4. The three-bullhead EDM forming machine according to claim 1, characterized in that: A crossbeam (23) is provided at the upper end of the X-axis slide seat (6), a fixing block (24) is provided on the upper surface of the crossbeam (23), and a first lead screw nut (25) is provided on the fixing block (24), wherein the first lead screw nut (25) cooperates with the Y-axis lead screw (21).

5. The three-bullhead EDM forming machine according to claim 1, characterized in that: A third motor (26) is disposed at the top end of the column (8); an output shaft of the third motor (26) is connected to the top end of a Z-axis lead screw (27); a second lead screw nut (28) is disposed on the electrode main shaft (9); and the Z-axis lead screw (27) is connected to the electrode main shaft (9) through the second lead screw nut (28).

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