CN203401171U - Wire walking mechanism of double-wire barrel multilayer wire winding reciprocating wire walking cutting machine tool - Google Patents

Abstract

The utility model relates to a wire-feeding mechanism of a wire-cutting machine tool with double-wire drums, multi-layer wire winding and reciprocating wire feeding. The wire row guide wheel group and the wire frame are connected with another wire storage drum; the ends of the two groups of wire storage drums are respectively provided with motors, and the motors drive the wire storage drums to rotate in forward and reverse directions, and one of the motors drives the wire storage drums When rotating in one direction, another motor drives the wire storage cylinder to generate a reverse torque, so that the electrode wire between the wire storage cylinders is tensioned, and each of the wire storage cylinders is provided with a screw nut to drive it to move axially. mechanism. This mechanism can reach thousands of meters of wire at a time, which can avoid the "frequent change of direction" of the electrode wire, and can maximize the online processing time of one-way wire feeding. The wire feeding speed of the wire feeding system can be from 0.1m/s-12m/ The speed can be adjusted within the range of s to meet the processing requirements of different objects, and the wire speed of the electrode wire is also very stable during the wire walking process.

Description

Double wire cylinder multi-layer winding wire reciprocating wire cutting machine wire feeding mechanism

technical field

The utility model relates to the field of wire electric discharge cutting, in particular to a wire-feeding mechanism of a reciprocating wire-feeding wire-cutting machine tool with double-wire cylinders and multi-layer windings.

Background technique

In the field of wire electric discharge processing technology, due to the structural limitation of the single wire reciprocating wire cutting machine tool, the length of wire feeding at one time is usually only 200-300m. When the wire speed reaches 10m/s, it needs to change direction after running for 20-30s This brings about the problem of "frequent reversing" of the electrode wire, and causes a series of problems such as serious cutting and reversing stripes during processing and restricted processing efficiency. In order to solve this problem, some people have also proposed a double wire drum multi-layer wire winding scheme. However, during the wire transportation process of the wire electrode passing through the guide wheel and the wire discharge wheel on the wire frame to the wire storage drum, due to the The direction and path of the movement change, so its length may also change, which in turn affects the stability of the wire speed. Therefore, most of these solutions are not operable, and there are no practical and specific solutions and implementation cases yet.

Contents of the invention

The technical problem to be solved by the utility model is to provide a double wire drum multi-layer reciprocating wire-feeding wire-cutting machine tool wire-feeding mechanism that can ensure the stable speed of the wire electrode and realize the unidirectional operation of the wire electrode and can be used repeatedly.

In order to solve the above-mentioned technical problems, the utility model is realized through the following technical solutions: a double wire cylinder multi-layer reciprocating wire-feeding wire cutting machine tool wire feeding mechanism, including two sets of wire storage drums, one of which is filled with electrodes The electrode wire is connected to another wire storage drum through the wire row guide wheel group and the wire rack arranged between the wire storage drums; the ends of the two groups of wire storage drums are respectively provided with motors, and the motors drive the wire storage drums For positive and negative rotation, when one of the motors drives the wire storage cylinder to rotate in one direction, the other motor drives the wire storage cylinder to generate a reverse torque, so that the electrode wire between the wire storage cylinders is tensioned, and the wire storage cylinder below Each is provided with a screw nut mechanism that drives it to move axially.

Preferably, the screw nut mechanism is composed of a wire-discharging motor, a lead screw, a screw nut and a wire-discharging guide wheel group, the lead screw is connected with the wire-discharging motor, the lead screw nut is rigidly connected with the wire storage cylinder, and the wire-discharging motor Through the lead screw and the lead screw nut, the wire storage cylinder is driven to make a reciprocating linear motion parallel to the axis of the wire storage cylinder, and combined with the wire discharge guide wheel group, the wire discharge and multi-layer winding of the electrode wire are realized.

Preferably, the wire storage cylinders are respectively fixedly arranged on both sides of the wire rack, and the axial direction of the wire storage drums is parallel to the wire feeding direction of the wire rack.

Preferably, the wire storage cylinders are arranged side by side at the rear side of the wire rack, and the axis direction of the wire storage drums is perpendicular to the wire transporting direction of the wire rack.

Compared with the prior art, the utility model is beneficial in that: the wire feeding mechanism of the double-wire drum multi-layer reciprocating wire cutting machine tool can reach thousands of meters at a time, which can avoid "frequent reversing" of the electrode wire. ", and can maximize the one-way wire-feeding online processing time. The wire-feeding system's wire-feeding speed can be adjusted from 0.1m/s-12m/s to meet the processing requirements of different objects. During the process, the wire speed of the electrode wire is also very stable.

Description of drawings:

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is the wire-feeding mechanism of the utility model double wire cylinder multi-layer reciprocating wire-feeding wire-cutting machine tool.

In the figure: 1 wire frame; 11, 12, wire storage drum; 111, 121, motor; 21, 31, lead screw; 22, 32, wire row motor; 41, 42, wire row guide wheel group; 5, electrode wire .

Detailed ways:

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in detail:

As shown in Fig. 1, a wire-feeding mechanism of a reciprocating wire-cutting wire-cutting machine tool with double-wire drum multi-layer winding includes two sets of wire storage drums 11 and 12 arranged on the side of the wire rack 1, one of which is filled with electrode wire 5, and the wire storage drum is filled with electrode wire 5. The electrode wire 5 is connected to another wire storage tube through the wire row guide wheel sets 41, 42 and the wire frame 1 arranged between the wire storage tubes 11, 12; the ends of the two groups of wire storage tubes 11, 12 are respectively set There are motors 111 and 121, and the motors 111 and 121 drive the wire storage drums 11 and 12 to rotate forward and reverse. The wire electrode 5 between the wire cylinders 11 and 12 is tensioned, and the wire electrode 5 moves from the wire storage cylinder filled with the electrode wire 5 to the wire storage cylinder not loaded with the electrode wire 5 until the wire storage cylinder is filled with the electrode wire 5 When the wire electrode 5 on the top is almost finished, the motor drives the wire storage drum to rotate in the opposite direction. Screw nut mechanism.

In order to keep the electrode wire 5 perpendicular to the axial direction of the wire storage cylinders 11, 12, the screw nut mechanism consists of a wire row motor 22, a lead screw 21, a lead screw nut 31 and a wire row guide wheel group 41, 42. The lead screw 21 is connected with the wire discharging motor 22, the leading screw nut 31 is rigidly connected with the wire storage cylinders 11, 12, and the wire discharging motor 22 drives the wire storage cylinders 11, 12 through the leading screw 21 and the leading screw nut 31 to make parallel to the wire storage cylinders. The reciprocating linear motion of the 11 and 12 axes, combined with the wire arrangement guide wheels 41 and 42, realizes the arrangement and multilayer winding of the electrode wire 5 .

The wire-feeding mechanism of the wire-cutting wire-cutting machine tool with multiple layers of double-wire drums has two arrangements. One is that the wire storage drums 11 and 12 are fixedly arranged on both sides of the wire frame 1 respectively, and the axes of the wire storage drums 11 and 12 The direction is parallel to the wire rack 1 wire transporting direction; the other is that the wire storage drums 11, 12 are arranged side by side on the rear side of the wire rack 1, and the axial direction of the wire racks 11, 12 is perpendicular to the wire rack 1 wire feeding direction.

Its specific working method is as follows:

Before processing, put the whole plate of electrode wire 5 on the wire storage cylinder 11, and then pass one end of the electrode wire 5 through the wire row guide wheel group 41, the upper wire rack, the workpiece, the lower wire rack and the wire row guide wheel group 42 Be fixed on the wire storage cylinder 12.

During processing, the motor 121 drives the wire storage cylinder 12 to rotate, causing the wire electrode 5 to travel, and the motor 111 generates a reverse torque to tighten the wire electrode 5. The tension is controlled by the motor 111, and the wire travel speed of the wire electrode 5 Controlled by motor 121. The bottom of the wire storage tubes 11, 12 is equipped with a screw nut mechanism to make the wire storage tubes 11, 12 move axially. The electrode wire 5 coming from the wire stand 1 is perpendicular to the axial direction of the wire storage cylinders 11 and 12 after passing through the wire row guide wheel sets 41 and 42, and passes through the wire row guide wheel groups 41 and 42 and the wire storage cylinders 11 and 12. Rotational movement and axial movement realize the winding of the wire storage drum 12 . When one layer of the wire storage cylinder 12 is full of electrode wire 5, the wire screw nut 31 drives the wire storage cylinder 12 to change direction and move in the opposite direction through the wire discharge motor 22 to realize stacked wire winding and wire discharge of the electrode wire 5 The spacing is controlled by the rotating speed of the wire-discharging motor 22.

During the processing, when the wire electrode 5 on the wire storage cylinder 12 is almost finished, the roles of the motor 11 and the motor 12 are exchanged through the control system, and the motor 111 drives the wire storage cylinder 11 to rotate so that the wire electrode 5 moves in the opposite direction. Moving, the motor 12 acts as a torque motor to control the tension of the wire electrode 5 , and the reciprocating motion of the wire electrode 5 can be realized by repeating the above process. The axial movement stroke and rotation and reversing control of the wire storage drum are realized by the wire feeding mechanism control system.

In this wire-feeding system, since the wire-feeding speed of the wire electrode 5 varies in a large range, the motor 111 and the motor 121 are realized by AC servo motors, and the radius of gyration of the wire electrode 5 on different layers of the wire storage cylinders 11 and 12 is different. , at the same speed, the linear speed of the wire electrode 5 will change. Therefore, it is necessary to adjust the corresponding speed of the motors 111, 121 by setting the control system software in the wire-feeding system to realize the control of the wire-feeding speed of the wire electrode 5.

The wire feeding mechanism of this kind of double-wire drum multi-layer winding wire reciprocating wire cutting machine can reach thousands of meters at a time, which can avoid the "frequent reversing" of the electrode wire 5, and can maximize the online processing time of unidirectional wire feeding. The wire speed of the wire feeding system can be adjusted within the range of 0.1m/s-12m/s to meet the processing requirements of different objects, and the wire speed of the wire electrode 5 is also very stable during the wire feeding process.

It should be emphasized that: the above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model in any form. Any simple modification, equivalent change and Modifications still belong to the scope of the technical solution of the utility model.

Claims (4)

1. a mariages cylinder multilayer wrapping wire to-and-fro thread silk drive mechanism of linear cutting machine, it is characterized in that: comprise two groups of wire storage cylinders (11,12), wherein on a wire storage cylinder, expire wire electrode (5), this wire electrode (5) is connected with another wire storage cylinder with coil holder (1) by the row's silk guide wheel group (41,42) being arranged between wire storage cylinder (11,12); The end of described two groups of wire storage cylinders (11,12) is respectively arranged with motor (111,121), motor (111,121) drives wire storage cylinder (11,12) to rotate in positive and negative direction, when one of them motor drives wire storage cylinder to do a direction rotation, another motor drives wire storage cylinder to produce opposing torque, make wire electrode (5) tensioning between wire storage cylinder (11,12), and described wire storage cylinder (11,12) below is respectively provided with a driving, and it makes axially movable leading screw and nut mechanism.

2. mariages cylinder multilayer wrapping wire to-and-fro thread silk drive mechanism of linear cutting machine according to claim 1, it is characterized in that: described leading screw and nut mechanism is by arranging a motor (22), leading screw (21), feed screw nut (31) and row's silk guide wheel group (41, 42) form, described leading screw (21) connects row's silk motor (22), feed screw nut (31) and wire storage cylinder (11, 12) be rigidly connected, row's silk motor (22) is by leading screw (21), feed screw nut (31) drives wire storage cylinder (11, 12) make to be parallel to the linear reciprocating motion of wire storage cylinder axis, with row's silk guide wheel group (41, 42) in conjunction with row's silk and the multilayer wrapping wire of realizing wire electrode (5).

3. mariages cylinder multilayer wrapping wire to-and-fro thread silk drive mechanism of linear cutting machine according to claim 1, it is characterized in that: described wire storage cylinder (11,12) is fixedly installed on respectively coil holder (1) both sides, the axis direction of wire storage cylinder (11,12) is parallel with coil holder (1) wire transporting direction.

4. mariages cylinder multilayer wrapping wire to-and-fro thread silk drive mechanism of linear cutting machine according to claim 1, it is characterized in that: described wire storage cylinder (11,12) is arranged side by side at coil holder (1) rear side, and the axis direction of wire storage cylinder (11,12) is vertical with coil holder (1) wire transporting direction.

Images