CN102091842A - Wire electrode stretching mechanism for horizontal linear cutting machine - Google Patents

Abstract

The invention discloses a wire electrode telescopic mechanism for a horizontal wire cutting machine tool, which comprises a winding drum arranged along the Y-axis direction, a cantilever arranged horizontally on the XZ plane, a carriage vertically arranged on the XZ plane, and an electrode wire, the cantilever There are the first wire row wheel and the first compensation wire row wheel on the top, the left guide wheel, the right guide wheel, the conductive device, the second wire row wheel and the second compensation wire row wheel are arranged on the dragging board, the first compensation wire row wheel The wheel and the second compensation wire arrangement wheel are arranged between the reel and the second wire arrangement wheel, and the first compensation wire arrangement wheel is located below the second compensation wire arrangement wheel, and the first wire arrangement wheel and the left guide wheel The segment A electrode wire, the segment B electrode wire between the first compensation wire-discharging wheel and the second compensation wire-discharging wheel are parallel to the Z axis.

Description

Telescopic Mechanism of Electrode Wire of Horizontal Wire Cutting Machine Tool

technical field

The invention relates to an electrode wire telescopic mechanism for a horizontal wire cutting machine tool.

Background technique

Wire cutting is developed on the basis of EDM perforation and forming. It not only makes the application of EDM develop, but also replaces EDM perforation and forming in some aspects. Its working principle: the electrode wire wound on the wire reel moves at a certain speed along the rotation direction of the wire reel, and the workpiece installed on the machine tool table is formed by the table according to the predetermined control track relative to the electrode wire. One pole of the power supply is connected to the workpiece, and the other pole is connected to the electrode wire. A certain discharge gap is always maintained between the workpiece and the electrode wire and the working fluid is sprayed. The spark discharge between the electrodes erodes a certain gap, and the continuous pulse discharge A workpiece of the desired shape and size is cut out.

Existing horizontal wire cutting machine tools have the problem of random change in the length of the electrode wire during processing. As shown in Figure 2, the Z-axis motor 62 drives the carriage 40 to move in the Z direction through the screw rod 61, downward During movement, the A-section electrode wire 21 between the first row of wire wheels 31 and the left guide wheel 41 will be extended (the D-section electrode wire 24 between the wire winding drum 10 and the second row of wire wheels 44 has a corresponding change), When moving upwards, the electrode wire 21 of segment A will shorten (the electrode wire 24 of segment D also has a corresponding change).

Contents of the invention

In order to overcome the above-mentioned shortcomings, the object of the present invention is to provide an electrode wire telescopic mechanism for horizontal wire cutting machine tools that can compensate for changes in the length of the electrode wire.

In order to achieve the above purpose, the technical solution adopted by the present invention is: a wire electrode telescopic mechanism of a horizontal wire cutting machine tool, which includes a winding drum arranged along the Y-axis direction, a cantilever arranged horizontally on the XZ plane, and a vertical cantilever on the XZ plane. The carriage and the electrode wire are set, the first row of wire wheels and the first compensation wire roller are arranged on the cantilever, and the left guide wheel, the right guide wheel, the conductive device, the second row of wire wheels and the second compensation are arranged on the carriage. The wire row wheel, the first compensation wire row wheel and the second compensation wire row wheel are arranged between the winding drum and the second wire row wheel, and the first compensation wire row wheel is located below the second compensation wire row wheel, the first row The segment A electrode wire between the wire wheel and the left guide wheel, and the segment B electrode wire between the first compensation wire-discharging wheel and the second compensation wire-discharging wheel are parallel to the Z axis.

Preferably, the first compensation wire arrangement wheel and the first wire arrangement wheel are arranged along the Z-axis direction.

More preferably, the second compensation wire arrangement wheel is arranged with the second wire arrangement wheel along the X-axis direction, and is arranged with the left guide wheel along the Z-axis direction.

Further, the second row of wire wheels and the right guide wheel are arranged along the Z-axis direction.

Furthermore, the left guide wheel and the right guide wheel are arranged along the X-axis direction and located on both sides of the workpiece to be processed.

Preferably, the conductive device includes a first conductive device and a second conductive device, the first conductive device is arranged between the left guide wheel and the first row of wire wheels, and is in contact with the electrode wire, and the second conductive device is arranged between the right guide wheel and the first row of wire wheels. Between the second row of wire wheels, and in contact with the electrode wire.

Preferably, the carriage is connected to a screw rod, and the screw rod is connected to a Z-axis motor, and both the screw rod and the Z-axis motor are arranged in a vertical direction.

Preferably, the cantilever is fixed on the column, and one end of the column is fixed on the bed of the machine tool.

Due to the adoption of the above-mentioned technical scheme, the electrode wire telescopic mechanism of the horizontal wire cutting machine tool of the present invention, when the carriage moves in the vertical direction and moves upward, the electrode wire of section A will be shortened by a certain length, while the electrode wire of section B will be elongated A certain length, and the opposite when moving downward. Since the electrode wires of segment A and segment B are vertically parallel, the lengths of shortening and elongation of segment A and segment B electrode wires are equal, so the electrode wires in the operating area do not change, thus solving the problem of vertical cutting wire cutting machine The problem of changing the length of the electrode wire during processing.

Description of drawings

Accompanying drawing 1 is a structural representation of the present invention;

Accompanying drawing 2 is the schematic diagram of the mechanism of the background technology of the present invention.

The labels in the figure are:

10. Wire reel; 20. Electrode wire; 21. A segment electrode wire; 22. B segment electrode wire; 23. C segment electrode wire; 24. D segment electrode wire; 25. E segment electrode wire; 30. Cantilever; 301, column; 31, the first row of wire wheels; 32, the first compensation row of wire wheels; 40, carriage; 41, left guide wheel; 42, right guide wheel; 43, conductive device; 431, first conductive device; 432, the second conductive device; 44, the second wire row wheel; 45, the second compensation wire row wheel; 50, workpiece; 61, screw mandrel; 62, Z-axis motor; 70, workbench; 71, fixture.

Detailed ways

The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

Referring to accompanying drawing 1, the telescoping mechanism of electrode wire of horizontal wire cutting machine tool in the present embodiment, it comprises the wire reel 10 that is arranged along the Y-axis direction, the cantilever 30 that is arranged along the horizontal direction on the XZ plane, along the vertical direction on the XZ plane Orientation set carriage 40. The cantilever 30 is fixed on the column 301 , and one end of the column 301 is fixed on the bed of the machine tool to support the cantilever 30 . The carriage 40 is connected with a screw mandrel 61, which is connected with a Z-axis motor 62. Both the screw mandrel 61 and the Z-axis motor 62 are arranged vertically to drive the carriage 40 to move vertically.

The cantilever 30 is provided with a first wire row wheel 31 and a first compensation wire row wheel 32, and the carriage 40 is provided with a left guide wheel 41, a right guide wheel 42, a conductive device 43, a second wire row wheel 44 and a second compensator wheel. The wire row wheel 45, the left guide wheel 41 and the right guide wheel 42 are arranged along the X-axis direction, and are positioned at both sides of the workpiece 50 to be processed, so that the C segment electrode wire 23 between the left guide wheel 41 and the right guide wheel 42 and the The workpiece 50 is vertical, and when the carriage moves in the Z-axis direction, the segment C electrode wire 23 moves up and down to complete the cutting in the Z-axis direction.

The first compensation wire row wheel 32 and the second compensation wire row wheel 45 are arranged between the reel 10 and the second wire row wheel 44, and the first compensation wire row wheel 32 is located below the second compensation wire row wheel 45, the second compensation wire row wheel 45 The section A electrode wire 21 between a row of wire wheels 31 and the left guide wheel 41, the section B electrode wire 22 between the first compensation wire row wheel 32 and the second compensation wire row wheel 45 are parallel to the Z axis, and the first compensation row The wire wheel 32 and the first row of wire wheels 31 are arranged along the Z-axis direction, the second compensation wire row wheel 45 and the second row of wire wheels 44 are arranged along the X-axis direction, and are arranged with the left guide wheel 41 along the Z-axis direction , the second row of silk wheels 44 and the right guide wheel 42 are arranged along the Z-axis direction. In this way, the rotation angles of the electrode wire 20 at the left guide wheel 41, the right guide wheel 42, the second row of wire wheels 44 and the second compensating wire row wheel 45 are at right angles. When the carriage moves in the Z-axis direction and moves upwards, The electrode wire of segment A will be shortened by a certain length, while the electrode wire of segment B will be extended by a certain length, and vice versa when moving downward. Since the electrode wires of segment A and segment B are vertically parallel, the lengths of shortening and elongation of segment A and segment B electrode wires are equal, so the electrode wires in the operating area do not change, thus solving the problem of vertical cutting wire cutting machine The problem of the length change of the electrode wire during the machining process balances the friction force at each corner when the electrode wire 20 moves.

The conductive device 43 includes a first conductive device 431 and a second conductive device 432, the first conductive device 431 is arranged between the left guide wheel 41 and the first row of wire wheels 31, and is in contact with the wire electrode 20, and the second conductive device 432 is arranged Between the right guide wheel 42 and the second row of wire wheels 44 , and in contact with the wire electrode 20 , it supplies electrical energy to the wire electrode in a balanced manner.

The above embodiments are only to illustrate the technical concept and characteristics of the present invention. All equivalent changes or modifications shall fall within the protection scope of the present invention.

Claims (8)

1. A wire electrode telescopic mechanism for a horizontal wire cutting machine tool, characterized in that it includes a winding drum (10) arranged along the Y-axis direction, a cantilever (30) arranged horizontally on the XZ plane, and a vertically arranged cantilever on the XZ plane The dragging plate (40) and the electrode wire (20), the cantilever (30) is provided with the first wire row wheel (31) and the first compensation wire row wheel (32), the dragging plate (40) There are left guide wheel (41), right guide wheel (42), conductive device (43), second wire row wheel (44) and second compensation wire row wheel (45), the first compensation wire row wheel The wheel (32) and the second compensation wire arrangement wheel (45) are arranged between the said reel (10) and the second wire arrangement wheel (44), and the first compensation The wire row wheel (32) is located below the second compensation wire row wheel (45), and the section A electrode wire between the first wire row wheel (31) and the left guide wheel (41) ( 21). The B segment electrode wire (22) between the first compensation wire arrangement wheel (32) and the second compensation wire arrangement wheel (45) is parallel to the Z axis. 2. The wire electrode telescopic mechanism of a horizontal wire cutting machine tool according to claim 1, characterized in that: the first compensation wire row wheel (32) and the first wire row wheel (31) are aligned along the Z axis direction arrangement. 3. The wire electrode telescopic mechanism of a horizontal wire cutting machine tool according to claim 1, characterized in that: the second compensation wire row wheel (45) and the second wire row wheel (44) are along the X-axis direction, and arranged along the Z-axis direction with the left guide wheel (41). 4. The wire electrode telescopic mechanism of a horizontal wire cutting machine tool according to claim 1, characterized in that: said second row of wire wheels (44) and said right guide wheel (42) are arranged along the Z-axis direction . 5. The electrode wire telescopic mechanism of a horizontal wire cutting machine tool according to claim 1, characterized in that: the left guide wheel (41) and the right guide wheel (42) are arranged along the X-axis direction, and Located on both sides of the workpiece (50) to be processed. 6. The electrode wire telescopic mechanism of a horizontal wire cutting machine tool according to claim 1, characterized in that: said conductive device (43) includes a first conductive device (431) and a second conductive device (432), said The first conductive device (431) is arranged between the left guide wheel (41) and the first row of wire wheels (31), and is in contact with the electrode wire (20), and the second conductive device (432) is arranged between the right guide wheel (42) and the second row of wire wheels (44), and is in contact with the electrode wire (20). 7. The electrode wire telescopic mechanism of a horizontal wire cutting machine tool according to claim 1, characterized in that: the carriage (40) is connected to the screw (61), and the screw (61) is connected to the Z-axis motor ( 62) connection, the screw rod (61) and the Z-axis motor (62) are both arranged along the Z-axis direction. 8. The electrode wire telescopic mechanism of horizontal wire cutting machine tool according to claim 1, characterized in that: the cantilever (30) is fixed on the column (301), and one end of the column (301) is fixed on the machine tool bed body.

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