CN2312091Y

CN2312091Y - Electrospark wire cutting machine with symmetrical tightening wire

Info

Publication number: CN2312091Y
Application number: CN 97249695
Authority: CN
Inventors: 高影利
Original assignee: Aqi Industry Electronic Co ltd
Current assignee: Beijing Agie Charmilles Industrial Electronics Ltd.
Priority date: 1997-11-27
Filing date: 1997-11-27
Publication date: 1999-03-31
Anticipated expiration: 2007-11-27

Abstract

The utility model relates to a wire cut electric discharge machine, which is the wire cut electric discharge machine suitable for the cutting technology of work pieces; the work pieces have different thickness and slope. A post is fixedly provided with a slider which matches with the post in the form of rolling and a rolling type horizontal guideway of which the central plane is on the same plane with the horizontal axial line of a wire winding drum. One end of the slider is fixedly arranged on the moving plates of two tension wheels, and the upper sides of the two tension wheels are respectively and symmetrically pivoted with the lower sides of the two tension wheels. The post is pivoted with two reverse wheels symmetrical to the horizontal guideway, and one end of the moving plate hangs a heavy hammer. Electrode wires are wound with the reverse wheel, the tension wheel, and the main guide wheel in sequence in the form of the upper side symmetrical to the lower side from the wire winding drum. The tension of the wire electrode is stable during the reciprocating motion, and the quality of the work pieces cut can be improved.

Description

The WEDM of symmetry tensioning silk

The utility model relates to a kind of WEDM, is particularly suited for the WEDM of different-thickness workpiece and different gradient cutting techniques.

At present, the wire electrode that traditional WEDM lays out from the wire storage tube upper and lower is asymmetric, thereby the upper and lower pulling force that is subjected to when the multiple line cutting movement of the wire electrode between the upper and lower capstan is inconsistent, influence the cut quality (as: surface roughness, cut rate etc.) of workpiece, during simultaneously for conversion different-thickness workpiece and the cutting of different gradient, wire electrode is easily broken or is lax.

In view of this, the purpose of this utility model provides a kind of WEDM of symmetrical tensioning silk, and the pulling force sum that is subjected in the time of making the upper and lower reciprocal cutting movement of wire electrode remains unchanged, and can also reduce supporting and change wire electrode direction guide wheel quantity.

The purpose of this utility model is achieved in that a kind of WEDM of symmetrical tensioning silk comprises lathe bed, wire storage tube, wire electrode, two capstans, one weight, its medial bed has the upper end and stretches out lifting column, by-level is stretched out the column of underarm, it is characterized in that: setting firmly the roller horizontal guide rail on a plane on the column with its central plane and wire storage tube horizontal axis, on this horizontal guide rail, roll and cooperate a slide block, set firmly on it at this slide block one end, following symmetry respectively articulates the movable plate of two regulating wheels, at this movable plate one end weight that dangles, on column, be pivoted again and be symmetrical in two reverse wheels of horizontal guide rail, and with two regulating wheels on same perpendicular, wire electrode is from wire storage tube, following solderless wrapped connection reverse wheel in regular turn symmetrically, regulating wheel is to capstan.

Above-mentioned horizontal guide rail is two-sided rolling guide; Above-mentioned two reverse wheels are respectively in two regulating wheel lower right sides.

Because adopt such scheme: wire electrode is subjected to tension stability when back and forth moving, thereby improve the fineness of workpiece alignment cutting, also be suitable for different-thickness workpiece and different gradient cutting processing simultaneously, and be unlikely that wire electrode is broken or lax.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 the utility model exemplary embodiments schematic diagram.

The A-A generalized section of Fig. 2 the utility model exemplary embodiments Fig. 1.

Among the figure; 1 lathe bed, 11 principal posts, 111 lifting columns, 112 underarms, 2 wire storage tubes, 3 wire electrodes, 4 capstans, 5 weights, 51, fixed pulley, 52 ropes, 6 horizontal guide rails, 7 slide blocks, 8 movable plates, 9 regulating wheels, 10 reverse wheels.

Present embodiment mainly comprises lathe bed 1, wire storage tube 2, wire electrode 3, two capstans 4, weight 5, horizontal guide rail 6, slide block 7, movable plate 8, two regulating wheels 9 and two reverse wheels 10, as shown in Figure 1, 2, and wherein:

Top, the rear end of lathe bed 1 is provided with wire storage tube 2, has column 11 on this lathe bed 1 and a lifting column 111 is stretched out in these column 11 upper ends, and by-level is stretched out a underarm 112; Last capstan 4 in two capstans 4 is arranged on the lower end of lifting column 111, because lifting column 111 can upper and lower rectilinear motion, can make capstan 4 upper and lower moving, in lifting column 111 lower ends level two reference axis are set also again, capstan 4 also can be done upper and lower inclination and moves in the event: and capstan 4 is arranged on underarm 112 terminations down, and the right flank of wire electrode 3 solderless wrapped connections two capstans 4 stretches out left.Belong to prior art.

Horizontal guide rail 6 is the rolling guides (two plane type) that are installed on the column 11, and the horizontal axis of central plane and wire storage tube 2 is on a plane.

Slide block 7 is to roll with horizontal guide rail 6 to cooperate.

Movable plate 8 its middle slide block 7 left sides (movable plate 8 can be an integral body with slide block 7 also) that are installed in, and its upper and lower two symmetry ends articulate regulating wheel 9 respectively.

Weight 5 utilizes rope 52 through being articulated in the fixed pulley 51 on the column 11, is fixed in then on the movable plate 8, makes it be the sagging position that suspends (weight of weight 5 is adjustable movement weight masses).

Two reverse wheels 10 be symmetrical in the horizontal central plane of horizontal guide rail 6 and be hubbed on the column 11 and two reverse wheels 10 and two regulating wheels 9 on same perpendicular,, on a plane, only be subjected to tensile force and be not subjected to distortion power with the wire electrode 3 that keeps twining.

Wire electrode 3 is from wire storage tube 2 upper and lower laying out, and two reverse wheels, 10 right sides of solderless wrapped connection symmetry, solderless wrapped connection two capstans 4 right sides are overlapped in two regulating wheels, 9 left sides of solderless wrapped connection symmetry again more respectively, form the sealing silk.

The utlity model has in sum following advantage:

1, since two regulating wheels, 9 relative wire storage tube 2 horizontal axis and horizontal guide rail 6 median planes arrange symmetrically, at weight 5 Under the Action of Gravity Field, two regulating wheels 9 are respectively to 3 upper and lower sections simultaneously tensionings of wire electrode, and therefore, wire electrode 3 is done upper and lower reciprocal During line cutting operation, the pulling force sum that two regulating wheels 9 are subjected to wire electrode 3 is constant, thereby has guaranteed between two capstans 4 Wire electrode 3 tension stabilities, be conducive to spark discharge, improved surface smoothness and the cutting processing efficient thereof of the work that is cut.

2, reverse wheel 10 quantity few (only having two), and be to be symmetrical arranged, so the frictional force of its generation is to two capstans The impact of wire electrode 3 is balanced between 4, and the wire electrode between regulating wheel 9 and the reverse wheel 10 3 and regulating wheel 9 and main Wire electrode 3 between the guide wheel 4 all on a plane, wire electrode 3 twisted phenomenas do not occur, reduces electrode between the capstan 4 yet The unstability of silk 3.

3, because a rope 52 (rope that connects weight 5) spurs four segment electrode silks 3, this rope by two regulating wheels 9 The distance of 52 pullings is 1/4 of wire electrode 3 elongations (or shortening), so this tensioning mechanism can be stored more wire electrode 3, just In the requirement of the cutting of satisfying different-thickness and gradient cutting technique, occur that wire electrode is broken or drawn pine and be unlikely.

Claims

1, a kind of WEDM of symmetrical tensioning silk comprises lathe bed (1), wire storage tube (2), wire electrode (3), two capstans (4), one weight (5), its medial bed (1) has the upper end and stretches out lifting column (111), by-level is stretched out the column (11) of underarm (112), it is characterized in that: on column (11), set firmly the roller horizontal guide rail (6) on a plane with its central plane and wire storage tube (2) horizontal axis, go up cooperation one slide block (7) that rolls at this horizontal guide rail (6), set firmly on it at these slide block (7) one ends, following symmetry respectively articulates the movable plate (8) of two regulating wheels (9), at these movable plate (8) one ends weight (5) that dangles, two reverse wheels (10) that on column (11), are pivoted and are symmetrical in horizontal guide rail (6) again, and with two regulating wheels (9) on same perpendicular, wire electrode (3) is from wire storage tube (2), following solderless wrapped connection reverse wheel (10) in regular turn symmetrically, regulating wheel (9) is to capstan (4).

2, by the WEDM of the described symmetrical tensioning silk of claim 1, it is characterized in that: above-mentioned horizontal guide rail (6) is two-sided rolling guide.

3, by the WEDM of the described symmetrical tensioning silk of claim 1, it is characterized in that: above-mentioned two reverse wheels (10) are respectively in two regulating wheels (9) lower right side.