Wire electric discharge machining apparatus
A wire electric discharge machining and electrode technology, applied in the field of online electric discharge machining devices, can solve problems such as position offset, thermal deformation of support body, adverse effects of mechanical accuracy or machining accuracy, etc., and achieve the effect of simplifying manufacturing process and high precision
Pending Publication Date: 2021-12-17
SODICK CO LTD
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Problems solved by technology
However, if the temperature of the device rises or falls due to heat generation or changes in the external environment temperature, there may be a difference in thermal expansion caused by thermal displacement on the bonding surface of components made of different materials, which may adversely affect the mechanical accuracy or processing accuracy. Happening
Specifically, when the temperature of the support body that supports the upper side guide unit and the lower side guide unit changes, the following problems arise: the support body expands or shrinks and thermally deforms, and the upper side guide unit and the lower side guide unit are separated. The relative position deviation of the side guide unit causes the reduction of positioning accuracy or machining accuracy
Method used
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no. 1 approach ＞
[0064] (1.1 Overall structure of the wire electric discharge machining device 100)
[0065] Hereinafter, the first embodiment of the present invention will be described in detail using the drawings. figure 1 It is a side view showing the outline of the wire electrical discharge machining device 100 according to the embodiment of the present invention, figure 2 It is a perspective view which shows the embodiment of the upper side support body 6 of the said embodiment. image 3 It is a side view showing an embodiment of the upper support body 6 of the above embodiment. In the following description, the surface on the side of the U-axis slider 51 on which the vertical arm 61 is provided ( figure 1 The surface when the machine is viewed from the left side on the paper) is defined as the front. And the rear side is made into the back side facing the front, and the right-hand side and the left-hand side are made into the side surface when facing the front. Furthermore, let the ...
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The invention provides a high-accuracy wire electric discharge machining apparatus in which a relative misalignment of an upper guide unit due to a temperature change is suppressed by a simple structure and minimum improvement. The wire electric discharge machining apparatus (100) includes an upper support (6) that supports an upper guide unit (82) that guides a wire electrode (W) on an upper side. The upper support (6) includes an arm (61) having a lower end provided with the upper guide unit (82); an axis drive portion (51) moving the arm (61) in at least one axial direction and made of a material that has a larger coefficient of linear expansion than ceramics; and an adjustment block (62) connecting the arm (61) and the axis drive portion (51) and made of ceramics. The adjustment block (62) is fixed at a position where a displacement of the upper guide unit (82) caused by expansion and contraction of the upper support (6) is suppressed by a bimetal effect occurring on a fastening surface of the axis drive portion (51) and the adjustment block (62).
Description
technical field [0001] The present invention relates to a wire electric discharge machining device for electric discharge machining using a wire electrode, and particularly relates to the following electric discharge machining device, comprising: an upper side support body extending laterally from a machine column extending up and down, and supported on the upper side guiding wire electrode a side guide unit; and a lower support body extending laterally from the machine column and supporting the lower guide unit for guiding the wire electrodes on the lower side. Background technique [0002] Conventionally, there is known a wire electric discharge machining apparatus that performs electric discharge machining on a workpiece using a wire electrode. Wire electrical discharge machining uses the electrical discharge phenomenon between the workpiece and the wire electrode to process, so it can precisely process high-hardness materials such as hard metals and ceramics that are dif...
Claims
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IPC IPC(8): B23H7/02B23H7/10B23H7/06B23H11/00
CPCB23H7/02B23H7/10B23H7/06B23H11/00B23H7/32B23H1/04B23H7/105B23H7/30
Inventor 坂口昌志保坂昭夫
Owner SODICK CO LTD