• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:SU923354A3
    申请号:SU772477005
    申请日:1977-05-04
    公开日:1982-04-23
    发明作者:Вавр Ален
    申请人:Ателье Де Шармий С.А. (Инофирма)；
    IPC主号:
    专利说明:

    (I) METHOD OF ELECTRO-EROS TREATMENT
    权利要求:
    Claims (2)
    [1]
    The invention relates to a method for the EDM treatment of conductive materials. A known method of eroding an electrode is a part with an electrode tool of non-circular cross section, according to which one of the electrodes is given a transverse translational motion, the radial amplitude of which is controlled during processing, ensuring the specified conditions in the interelectrode gap of the heterojuncture. However, this method has a low processing efficiency. The purpose of the invention is to increase the efficiency of processing. This goal is achieved by measuring the instantaneous radial amplitude during the adjustment, comparing the BajoT with the reference radial amplitude and, depending on the result, changing the angular velocity of the translational motion, and if the reference amplitude is exceeded by the instantaneous radial amplitude, and vice versa In addition, the reference radial amplitude is determined by calculating the average magnitude of the instantaneous and radial amplitude during the previous movement cycle. FIG. 1 shows the treatment of an elliptical electrode; in fig. 2 shows a change in the trajectory of the translational movement in the process of processing; FIG. 3 - treatment with a rectangular electrode; in fig. k trajectory change in FIG. 5 treatment with an electrode in the form of a body of revolution; in fig. 6 - trajectory change. Electrode-tool 1 with an elliptical cross section is used to process a notch of a suitable shape in the electrode part.
    [2]
    2. The treatment is carried out by imparting to the electrode a cyclic circular translational motion about. During the process, a 3S change in the path of translational movement occurs (Fig. Circle 3 shows the path of movement at the beginning of processing. When the path passes at a constant speed, the amount of substance removed from the workpiece for a given arc of a circle of the path is much larger when it is processed the zone is located on the side of a large radius of the curve of the electrode, than if the processing takes place on the side of a small radius of the curve. Consequently, if no measures are taken, the trajectory 3 is transformed, with In order to avoid such a deformation of the trajectory, a real trajectory is compared with a reference circular trajectory indicated by a circle 5. To do this, measure the instantaneous radial amplitude, compare it with the reference radial amplitude, and change the angular velocity of the translational motion in depending on this deviation in such a way as to keep the predetermined limits in. If, as shown in Fig. 2, the radius of the reference trajectory 5 is equal to the average radius of the real trajectory A, then you can use the sign of the deviation tim order to vary the speed of the translational movement. Choosing a sufficiently small deviation, necessary in order to impose a strong change in velocity, one can obtain such a real trajectory that would be arbitrarily close to a fixed ideal trajectory. In the case of processing rectangular grooves using a square path for moving the electrode-tool 1 in the notch of the electrical part 2 (Fig. 3), if no special measures are taken, the square path 3 (Fig.) Will tend to deform and take the shape of k. Accepting a reference, for example, circular path 5, one can avoid the deformation of a square path. The instantaneous deviation of the radial amplitude from the reference amplitude continuously varies along one side of the square, which gives the velocity varying along this side. When moving along the next side, which forms an angle of 90 with the first side, the automatic control system changes the translational velocity with the opposite sign, which depends on the size of the surface to be machined. . Trajectory deformations associated with the amount of material removed, more for the longer side of the rectangle than for the short side, are compensated for, because the automatic speed control system must keep all sides of the trajectory at an equal distance from the reference circular trajectory. FIG. 5 and 6 relate to the case where translational movement occurs along the rotational surface, which can be obtained by imparting circular translational electrode 1, the radius of which is a function of advancing the electrode in the direction of the workpiece electrode 2 to be processed in FIG. 6, this function is linear, so that the rotation surface is a cone C. Line 3 is the trajectory at the beginning of the treatment, line k shows the tendency of this trajectory to warp, and line 5 represents the reference trajectory. I. The method described is reliable and allows processing with high efficiency. Claim 1. Electro-electrostatic processing of an electrode-part with non-circular cross-section electric tool, according to which one of the electrodes is given a transverse translational motion, the radial amplitude of which is adjusted during processing, providing the specified conditions in the interelectrode gap, characterized in that, in order to increase the processing efficiency, In the process of adjustment, the instantaneous radial amplitude is measured, compared with the reference radial amplitude and, depending on the result The angular velocity of the translational motion is increased, and in case of exceeding the instantaneous radial, amplitude reference amplitude, the velocity is increased and vice versa.
    类似技术:
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    同族专利:
    公开号 | 公开日
    JPS5570526A|1980-05-28|
    GB1580853A|1980-12-03|
    DE2718044C2|1985-08-22|
    FR2350166B2|1980-08-14|
    CH596936A5|1978-03-31|
    JPS5720102B2|1982-04-26|
    FR2350166A2|1977-12-02|
    IT1116626B|1986-02-10|
    DE2718044A1|1977-11-24|
    JPS52134200A|1977-11-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CA974602A|1972-11-16|1975-09-16|John M. Weber|Electric discharge machine with mechanism for orbiting the electrode on a polygonal path|
    CH565004A5|1972-04-06|1975-08-15|Agie Ag Ind Elektronik|JPS56127711U|1980-02-29|1981-09-29|
    GB2073641B|1980-04-15|1984-09-19|Inoue Japax Res|Controlling crater shape in electrical discharge machining|
    JPS6411409B2|1980-09-17|1989-02-23|Mitsubishi Electric Corp|
    JPH0125656B2|1980-09-19|1989-05-18|Mitsubishi Electric Corp|
    EP0451305A1|1990-04-07|1991-10-16|Dr. Johannes Heidenhain GmbH|Method of electroerosion|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH561376A|CH596936A5|1976-05-05|1976-05-05|
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