Follow-up wire supporting mechanism of spark erosion drilling machine

Abstract

The utility model discloses a follow-up wire supporting mechanism of a spark erosion drilling machine, which comprises a fixed support, a guide rail is arranged on the fixed support, a movable pulley sliding block is connected onto the guide rail in a sliding manner, a flexible rope fixing support is arranged above the movable pulley sliding block, a flexible rope is arranged on the flexible rope fixing support, and the movable pulley sliding block is connected with the flexible rope. The flexible rope penetrates through the movable pulley sliding block, one end of the flexible rope fixing support is fixed to the fixing support, the other end of the flexible rope fixing support is connected with the electrode, an eye mask fixing support is arranged on one side of the movable pulley sliding block, and a replaceable guide eye mask is arranged on the eye mask fixing support. According to the utility model, the electrode is always in a stable state in the whole processing process.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric spark machining technical field especially is a kind of electric spark perforating machine servo wire supporting mechanism. BACKGROUND

[0002] Electric spark perforating machine as a kind of precision machining equipment, it is widely used in manufacturing, especially in aerospace, medical field etc..It removes material using discharge phenomenon, realizes high-precision small hole processing.However, traditional electric spark perforating machine has certain limitation, especially when processing long and thin electrode, it is particularly obvious.This kind of machine usually does not have special wire supporting mechanism, lead to electrode bending phenomenon in the processing process, seriously affect processing quality and efficiency.

[0003] To deal with this problem, existing technical means mainly concentrate on the following several aspects: one is to shorten the length of electrode to reduce its bending possibility, but this can lead to material waste;Second, adopt manual wire supporting method, although electrode bending problem can be alleviated to some extent, but this method not only time-consuming and laborious, and difficult to guarantee the stability of processing;Third, improve electrode material, enhance its rigidity, but this increases cost and limited effect.These methods can solve the problem to some extent, but there are still many deficiencies in practical application.

[0004] The most common problem in prior art is that, due to lack of effective automatic wire supporting mechanism, electrode gradually shortens in long time use, cannot always keep in optimum supporting point to support wire, which leads to electrode bending in different degrees under different lengths, further affect the stability and efficiency of processing.Therefore, a wire supporting mechanism capable of dynamically adapting to electrode length change is needed to ensure that electrode is always in stable state in the whole processing process. SUMMARY

[0005] The application provides an electric spark perforating machine servo wire supporting mechanism, which can ensure that the electrode is always in a stable state during the whole processing process.

[0006] The application provides an electric spark perforating machine servo wire supporting mechanism, which adopts the following technical scheme:

[0007] An electric spark perforating machine servo wire supporting mechanism, comprising a fixed support, a guide rail is arranged on the fixed support, a movable pulley slider is slidably connected to the guide rail, a flexible rope fixing support is arranged above the movable pulley slider, a flexible rope is arranged on the flexible rope fixing support, the flexible rope passes through the movable pulley slider, one end of the flexible rope fixing support is fixed on the fixed support, and the other end is connected with the electrode, an eye film fixing support is arranged on one side of the movable pulley slider, and a replaceable guide eye film is arranged on the eye film fixing support.

[0008] By adopting the technical scheme, the electric spark perforating machine follow-up wire supporting mechanism can effectively solve the problem that long and thin electrodes are easy to bend during the machining process.

[0009] Preferably, a limiting block is arranged in the guide rail, and the limiting block is used to prevent the movable pulley sliding block from sliding out of the guide rail during sliding.

[0010] By adopting the technical scheme, the limiting block arranged in the guide rail can effectively prevent the movable pulley sliding block from sliding out of the guide rail during sliding, thereby ensuring the stability and safety of the device.

[0011] Preferably, a spring mechanism is arranged on the top of the movable pulley sliding block, the spring mechanism comprises a spring arranged on the top of the movable pulley sliding block and a fixing block away from the movable pulley sliding block at one end of the spring, and the fixing block is fixed to the fixed support.

[0012] By adopting the technical scheme, the spring mechanism can always keep the movable pulley sliding block under the downward force, so that the flexible rope is kept in a tight state. This can effectively prevent the flexible rope from jumping out of the pulley track due to relaxation, ensure the normal operation of the device, and improve the machining stability. In addition, the fixed connection mode of the fixing block and the fixed support makes the whole system more stable, and further enhances the reliability of the system.

[0013] Preferably, an insulating plate is connected to one side of the movable pulley sliding block, and the other side of the insulating plate is connected to the eye membrane fixed support.

[0014] By adopting the technical scheme, the insulating plate is connected between the movable pulley sliding block and the eye membrane fixed support during use, so that the high-voltage electricity on the electrode wire during electric discharge machining cannot be conducted to the ground, the occurrence of electric leakage is avoided, and the safety performance of the equipment is improved.

[0015] Preferably, a threaded hole is arranged at one end of the flexible rope fixed support, and the flexible rope fixed support is fixed above the fixed support by bolts.

[0016] By adopting the technical scheme, the threaded hole arranged at one end of the flexible rope fixed support enables the flexible rope fixed support to be firmly fixed above the fixed support by bolts. This design not only increases the overall stability of the device, but also facilitates the installation and disassembly of the flexible rope fixed support, and is convenient for maintenance and replacement.

[0017] Preferably, the end of the flexible rope fixing support connected with the electrode is provided with a mounting groove for mounting the electrode.

[0018] By using the above technical scheme, when in use, the end of the flexible rope fixing support connected with the electrode is provided with a mounting groove, which can conveniently mount and position the electrode, and ensure that the electrode always maintains the correct posture during processing.

[0019] Preferably, the flexible rope fixing support is further provided with an adjusting hole for mounting an adjusting bolt, which fixes the flexible rope in the flexible rope fixing support, and can adjust the tension of the flexible rope.

[0020] By using the above technical scheme, when in use, the design of the adjusting hole can not only firmly fix the flexible rope, but also conveniently adjust the tension of the flexible rope, ensure that the flexible rope always maintains the best working state during sliding, avoid the device failure problem caused by loosening, and improve the stability and reliability of the whole system.

[0021] Preferably, the replaceable guide eye film is fixed on the eye film fixing support through a buckle structure, and the buckle structure comprises an elastic clasp arranged outside the replaceable guide eye film and a clamping groove on the eye film fixing support.

[0022] By using the above technical scheme, when in use, the replaceable guide eye film can be conveniently and quickly replaced, adapt to electrodes with different diameters, and ensure the stability of the electrode during processing. The cooperation structure of the elastic clasp and the clamping groove not only facilitates installation and disassembly, but also effectively prevents the guide eye film from loosening or falling off, and ensures the reliability and long-term stable operation of the device.

[0023] In summary, the present application has the following beneficial effects:

[0024] 1. The electric spark perforating machine follow-up wire supporting mechanism designed in the utility model makes the electrode always at the best supporting point, i.e. the midpoint position of half of the electrode, during processing, effectively prevents the electrode from bending, and improves the processing stability and efficiency;

[0025] 2. The electric spark perforating machine follow-up wire supporting mechanism designed in the utility model can replace the guide eye film according to the change of the electrode diameter, ensures good cooperation with the electrode wire, further improves the wire supporting effect, and avoids the processing problem caused by size mismatching;

[0026] 3. The electric spark perforating machine follow-up wire supporting mechanism, the existence of the spring mechanism ensures the tight state of the flexible rope, prevents the flexible rope from jumping out of the pulley, thereby ensuring the reliability of the whole device and prolonging the service life. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of an embodiment;

[0028] Figure 2 is an enlarged schematic view of a buckle structure in the embodiment;

[0029] Reference signs: 1, fixed support; 2, guide rail; 3, movable pulley sliding block; 4, flexible rope fixed support; 5, flexible rope; 6, eye film fixed support; 7, replaceable guide eye film; 8, limiting block; 9, spring mechanism; 91, spring; 92, fixed block; 10, insulating plate; 11, threaded hole; 12, mounting groove; 13, adjusting hole; 14, buckle structure; 141, elastic clasp; 142, clamping groove. DETAILED DESCRIPTION

[0030] The utility model will be further explained in detail in combination with the drawings. Same parts are indicated by same reference signs. It should be noted that the words "front", "back", "left", "right", "up", "down", "bottom surface" and "top surface" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions towards or away from the geometric center of a specific part.

[0031] The utility model discloses an electric spark perforating machine follow-up wire supporting mechanism, such as Figure 1 and Figure 2As shown, including fixed support 1, fixed support 1 can be made of high strength aluminum alloy material, has good anti deformation ability and corrosion resistance, fixed support 1 is provided with guide rail 2, guide rail 2 can be made of stainless steel material, the surface is polished to reduce friction resistance, the guide rail 2 is slidably connected with the movable pulley slider 3, the guide rail 2 is provided with a limit block 8, the limit block 8 is used to prevent the movable pulley slider 3 from sliding out of the guide rail 2 when sliding. The movable pulley slider 3 is provided with a flexible rope fixing support 4 above, the flexible rope fixing support 4 is provided with a flexible rope 5, the flexible rope 5 passes through the movable pulley slider 3, one end of the flexible rope fixing support 4 is fixed on the fixed support 1, the other end is connected with the electrode, one end of the flexible rope fixing support 4 is provided with a threaded hole 11, the flexible rope fixing support 4 is fixed on the fixed support 1 by bolts. This design is convenient for disassembly and maintenance, and also improves the stability of the device, the end of the flexible rope fixing support 4 connected with the electrode is provided with a mounting groove 12, the mounting groove 12 is used for mounting the electrode. The mounting groove 12 can be provided with rubber gasket, which can facilitate the insertion of the electrode and improve the sealing and shock resistance. The flexible rope fixing support 4 is also provided with an adjusting hole 13, the adjusting hole 13 is used for installing adjusting bolt, the adjusting bolt fixes the flexible rope 5 in the flexible rope fixing support 4, at the same time, the adjusting bolt can adjust the tension of the flexible rope 5. By screwing in or out of the adjusting bolt, the tightness of the flexible rope 5 can be accurately controlled.

[0032] The movable pulley slider 3 is provided with a spring mechanism 9 on the top, the spring mechanism 9 includes a spring 91 provided on the top of the movable pulley slider 3 and a fixed block 92 away from the movable pulley slider 3 one end of the spring 91, the fixed block 92 is fixed on the fixed support 1, the spring 91 can be selected from a coil spring 91, which has greater elasticity and longer service life, the design of the spring 91 can maintain constant tension even when the electrode length changes greatly, ensuring that the flexible rope 5 is always in tension. One side of the movable pulley slider 3 is connected with an insulating plate 10, the insulating plate 10 can be made of ceramic or glass fiber material, which has excellent insulation performance and mechanical strength, the other side of the insulating plate 10 is connected with the eye membrane fixing support 6, which ensures that the high voltage on the electrode wire does not enter the ground during electric discharge processing, the thickness of the insulating plate 10 can be selected according to the actual situation, which can ensure sufficient insulation performance without increasing too much weight.

[0033] One side of the movable pulley slider 3 is provided with an eye film fixing support 6, the eye film fixing support 6 is provided with a replaceable guide eye film 7, the replaceable guide eye film 7 is fixed on the eye film fixing support 6 through a buckle structure 14, the buckle structure 14 includes elastic clamps 141 arranged on the outer side of the replaceable guide eye film 7 and clamping grooves 142 on the eye film fixing support 6. This design makes the replacement of the eye film very convenient, only need to press the elastic clamps 141, the old eye film can be easily removed, and then the new eye film can be reloaded into the clamping groove 142, the elastic clamps 141 can be made of soft glue or flexible plastic material, and has good elasticity and durability.

[0034] Working principle: the utility model discloses a kind of servo wire supporting mechanism of electric spark perforating machine, by being provided with fixed support 1, guide 2, movable pulley slider 3, flexible rope fixing support 4, flexible rope 5, eye film fixing support 6 and replaceable guide eye film 7, form a kind of wire supporting mechanism capable of dynamically adapting electrode length change.In the electrode processing process, with the continuous consumption of electrode, the end of flexible rope 5 is continuously lowered by the descending of main shaft, in turn drive movable pulley slider 3 along guide 2 synchronous drop.The insulating plate 10 below movable pulley slider 3 and eye film also correspondingly drop, always keep in the midpoint position of half electrode, exactly the point where electrode is most likely to bend.Such no matter how the length of electrode changes, electrode bending can be effectively avoided, ensure processing stability and efficiency.

[0035] The above are preferred embodiments of the present application, not limited to the protection scope of the present application, therefore: equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. An electric spark perforator servo wire supporting mechanism characterized by: The utility model provides a kind of electrode fixing device, including fixed support (1), guide rail (2) is provided on the fixed support (1), movable pulley slider (3) is slidably connected on the guide rail (2), flexible rope fixing support (4) is provided above movable pulley slider (3), flexible rope (5) is provided on the flexible rope fixing support (4), the flexible rope (5) passes through movable pulley slider (3), one end of the flexible rope fixing support (4) is fixed on fixed support (1), and the other end is connected with electrode, one side of movable pulley slider (3) is provided with eye film fixing support (6), replaceable guide eye film (7) is provided on the eye film fixing support (6).

2. The follow-up wire supporting mechanism of the electric spark perforator according to claim 1, characterized in that: Limiting block (8) is provided in the guide rail (2), and the limiting block (8) is used to prevent movable pulley slider (3) from sliding out of the guide rail (2) when sliding.

3. The follow-up wire supporting mechanism of the electric spark perforator according to claim 1, characterized in that: Spring mechanism (9) is provided on the top of movable pulley slider (3), the spring mechanism (9) includes spring (91) provided on the top of movable pulley slider (3) and fixed block (92) away from one end of the spring (91) from movable pulley slider (3), and the fixed block (92) is fixed on the fixed support (1).

4. The follow-up wire supporting mechanism of the electric spark perforator according to claim 1, characterized in that: Insulating plate (10) is connected on one side of movable pulley slider (3), and the other side of the insulating plate (10) is connected with the eye film fixing support (6).

5. The follow-up wire supporting mechanism of the electric spark perforator according to claim 1, characterized in that: Threaded hole (11) is provided on one end of the flexible rope fixing support (4), and the flexible rope fixing support (4) is fixed on the position above the fixed support (1) by bolts.

6. The follow-up wire supporting mechanism of the electric spark perforator according to claim 1, characterized in that: Mounting groove (12) is provided on the end of the flexible rope fixing support (4) connected with the electrode, and the mounting groove (12) is used for mounting the electrode.

7. The follow-up wire supporting mechanism of the electric spark perforator according to claim 1, characterized in that: Adjusting hole (13) is further provided on the flexible rope fixing support (4), and the adjusting hole (13) is used for mounting adjusting bolt, and the adjusting bolt fixes the flexible rope (5) in the flexible rope fixing support (4), and meanwhile, the adjusting bolt can adjust the tension of the flexible rope (5).

8. The follow-up wire supporting mechanism of the electric spark perforator according to claim 1, characterized in that: Replaceable guide eye film (7) is fixed on the eye film fixing support (6) by buckle structure (14), and the buckle structure (14) includes elastic clasp (141) provided on the outside of the replaceable guide eye film (7) and clamping groove (142) on the eye film fixing support (6).

Images