CN102350549B

CN102350549B - Wire cutting machine

Info

Publication number: CN102350549B
Application number: CN 201110284816
Authority: CN
Inventors: 章敬远
Original assignee: Ruian Chengguan Mould No2 Factory
Current assignee: Ruian Chengguan Mould No2 Factory
Priority date: 2011-09-23
Filing date: 2011-09-23
Publication date: 2013-01-23
Anticipated expiration: 2031-09-23
Also published as: CN102350549A

Abstract

The invention discloses a wire cutting machine. An upper wire arm guide wheel lifting device comprises an upper wire arm guide wheel, a parallel four-bar mechanism, a movable wheel and a vertical guide plate; a wire storage cylinder device comprises a wire storage cylinder, a first transmission shaft, a second transmission shaft, a transmission wheel A, a transmission wheel B, a transmission wheel C, a transmission wheel D and a nut; and a tension control device comprises a winding cable disk, a counter weight, a swing arm and a pinch roller. Compared with the prior art, the wire cutting machine disclosed by the invention has a simple and compact structure; the upper wire arm guide wheel is convenient to adjust, and the adjustment precision is high; the wire storage cylinder operates stably; and a wire electrode is controlled by constant tension.

Description

Wire cutting machine

Technical field

The present invention relates to a kind of linear cutting equipment, be specifically related to a kind of improvement invention of wire cutting machine.

Background technology

In the prior art, wire cutting machine has the following disadvantages: 1. in order to guarantee the cut quality of wire cutting machine, distance must be adjusted between the upper silk arm guide wheel of requirement wire cutting machine and processing work, require simultaneously the guide wheel line vertical with the workpiece face, in the prior art, the upper silk arm guide wheel lifting device of wire cutting machine forms framework by column, upper silk arm, a lower arm, the adjustment of distance between upper silk arm guide wheel and processing work, that upper silk arm drives lifting by screw drive in the column guide groove, its weak point is, pulling low precision and complex operation, structure is not compact; The wire storage tube of wire cutting machine positive inverse transformation turn to the wire storage tube pedestal about drag by motor during walking, and motor is directly installed on the wire storage tube pedestal, one axle head of wire storage tube axle is connected in series with motor shaft, then drive the walking mechanism action by another axle head, the shortcoming of said structure is, vibration and rotating inertia force during the motor operation can affect the wire storage tube even running, have increased the load of wire storage tube operation; 3. the wire electrode of wire cutting machine is in continuous cutting and continuous use procedure, because the impact of the factors such as variations in temperature, wire electrode wearing and tearing, the tightening force of wire electrode can be lost gradually, will greatly affect like this crudy of line cutting, so the constant tension that tenslator comes the control electrode silk must be set, in the prior art, have by spring thrust, the tenslator that adds spring thrust by the cylinder straight-line guidance is arranged, but all have complex structure, the inconstant defective of tension force.

Summary of the invention

In view of the problem that present known technology exists, the technical problem to be solved in the present invention is to be to provide a kind of simple and compact for structure, and upper silk arm adjustment of roller is convenient, degree of regulation is high, and wire storage tube operates steadily, the wire cutting machine of the permanent tension force control of wire electrode.

For solving the problems of the technologies described above, the present invention takes following technical scheme to finish:

Wire cutting machine, comprise plainly-packed the putting of storage silk, upper silk arm guide wheel lifting device and tenslator, it is characterized in that: upper silk arm guide wheel lifting device comprises silk arm guide wheel, parallel four-bar linkage, castor and vertical guide plate, vertical guide plate is fixedly installed, castor is pasting vertical guide plate and is sliding up and down setting, parallel four-bar linkage vertically arranges by upper connecting rod, lower link, left connecting rod and right connecting rod are hinged and form, described upper silk arm guide wheel is connected on the extension arm of connecting rod, described castor is connected on the extension arm of left connecting rod, the pin joint position of right connecting rod and lower link is fixed, the center of this pin joint, the center sight alignment of the center of castor and upper silk arm guide wheel, plainly-packed the putting of storage silk comprises wire storage tube, the first power transmission shaft, second driving shaft, drive A, drive B, drive C, drive D and nut, wire storage tube rotatably is located in the wire storage tube pedestal, drive A is fixedly installed at the first power transmission shaft, drive B endwisely slips at the first power transmission shaft and arranges and be rotatably connected on the described wire storage tube pedestal, drive C is fixedly installed at second driving shaft, drive D is fixedly installed at the axle head of wire storage tube axle, being threaded that nut and second driving shaft axle head are provided with forms the screw thread transmission, nut is fixed on the wire storage tube pedestal, the first power transmission shaft is connected with motor-driven, drive A and drive C are in transmission connection, drive B and drive D are in transmission connection, tenslator comprises around the rope dish, weight, swing arm and pinch roller, rotatably arrange around the rope dish, be connected with the described weight that makes around the rotation of rope dish around Suo Panshang, swing arm can swing setting, swing arm is connected with the rope that is connected on the rope dish, described pinch roller be connected in the swing arm to be located at wire storage tube and up and down the wire electrode between the outlet of silk arm compress.

In the said structure, by stirring linkage, make castor paste vertical guide plate and slide up and down, just can realize the vertical elevating movement of silk arm guide wheel, compared with prior art, compact conformation not only, and adjust simple and conveniently, the adjustment precision is high.Motor has broken away from the installation annexation with the wire storage tube pedestal, walking mechanism has also broken away from the direct connection relational with the wire storage tube axle, so the vibration during the motor operation and wire storage tube rotating inertia force is the very little wire storage tube that has influence on just, Effective Raise the wire storage tube traveling comfort, also just eliminated simultaneously because the load that the wire storage tube operation that operation does not steadily bring increases.Action of Gravity Field by weight makes around the rope dish and rotates, spur swing arm around the rope dish by rope, swing arm swings and makes pinch roller compress the tension force of control electrode silk to wire electrode, because the gravity of weight is constant, so also constant by the pressure that pinch roller acts on the wire electrode, thereby reach the purpose of permanent tension force control, said structure is very simple simultaneously.

In sum, the present invention is simple and compact for structure, and upper silk arm adjustment of roller is convenient, degree of regulation is high, and wire storage tube operates steadily, and the permanent tension force control of wire electrode compared with prior art, has outstanding substantive distinguishing features and significant progressive.

Description of drawings

The present invention has following accompanying drawing:

Fig. 1 is the plainly-packed structural representation of putting of storage silk of the present invention;

Fig. 2 is the structural representation of upper silk arm guide wheel lifting device of the present invention and tenslator;

Fig. 3 is the structural representation of Fig. 2 after tenslator is adjusted;

Among the figure: the 1-wire storage tube, 2-wire storage tube pedestal, 3-wire storage tube axle, 4-the first power transmission shaft, the 5-second driving shaft, the 6-nut, the 7-motor, the upper silk of 8-arm guide wheel, the 9-right connecting rod, the upper connecting rod of 10-, the extension arm of the upper connecting rod of 10a-, the left connecting rod of 11-, the extension arm of the left connecting rod of 11a-, the 12-pin joint, the 13-lower link, the 14-castor, the vertical guide plate of 15-, 16-is around the rope dish, the 17-top link, the 18-rope, the 19-pinch roller, the 20-wire electrode, the 21-rope, the 22-lower swing arm, the 23-pinch roller, the 24-weight, the 25-wire electrode, the A-drive, the B-drive, the C-drive, the D-drive.

The specific embodiment

Accompanying drawing has represented technical scheme of the present invention and embodiment, and the below further describes each details and the operation principle thereof of embodiment more by reference to the accompanying drawings.

With reference to accompanying drawing, this kind wire cutting machine comprises that storage silk is plainly-packedly put, upper silk arm guide wheel lifting device and tenslator.

Such as accompanying drawing 1, plainly-packed the putting of described storage silk comprises wire storage tube 1, wire storage tube axle 3, wire storage tube pedestal 2, the first power transmission shaft 4, second driving shaft 5, drive A, drive B, drive C, drive D and nut 6, wire storage tube 1 is connected on the wire storage tube axle 3, wire storage tube 1 rotatably is located in the wire storage tube pedestal 2, drive A is fixedly installed at the first power transmission shaft 4, drive B endwisely slips at the first power transmission shaft 4 and arranges and be rotatably connected on the described wire storage tube pedestal 2, drive C is fixedly installed at second driving shaft 5, drive D is fixedly installed at the axle head of wire storage tube axle 3, being threaded that nut 6 and second driving shaft 5 axle heads are provided with forms the screw thread transmission, nut 6 is fixed on the wire storage tube pedestal 2, the first power transmission shaft 4 is connected in series with the spindle nose of motor 7, drive A and drive C are in transmission connection, and drive B and drive D are in transmission connection.

Such as accompanying drawing 2, described upper silk arm guide wheel lifting device comprises silk arm guide wheel 8, parallel four-bar linkage, castor 14 and vertical guide plate 15, vertical guide plate 15 is fixedly installed, castor 14 is pasting vertical guide plate 15 and is sliding up and down setting, parallel four-bar linkage vertically arranges by upper connecting rod 10, lower link 13, left connecting rod 11 and right connecting rod 9 are hinged and form, described upper silk arm guide wheel 8 is connected on the extension arm 10a of connecting rod, described castor 14 is connected on the extension arm 11a of left connecting rod, the center of this pin joint 12 is fixed in pin joint 12 positions of right connecting rod 9 and lower link 13, the center sight alignment of the center of castor 14 and upper silk arm guide wheel 8.Described tenslator, comprise around rope dish 16, weight 24, top link 17, lower swing arm 22, pinch roller 19 and pinch roller 23, rotatably arrange around rope dish 16, on rope dish 16, be connected with and make the described weight 24 that rotates counterclockwise around the rope dish, swing arm can swing setting, top link 17 is connected with the rope 18 that is connected on the rope dish, lower swing arm 22 is connected with the rope 21 that is connected on the rope dish, the swinging end that described pinch roller 19 is connected to top link 17 compresses the wire electrode 20 that is located between described wire storage tube 1 and the outlet of upper silk arm, and the swinging end that described pinch roller 23 is connected to lower swing arm 22 compresses being located at described wire storage tube 1 and lower arm wire electrode 25 between exporting.

The present invention is like this work: electric machine rotation, and drive first and second power transmission shaft and rotate, the first power transmission shaft rotates, and drives drive B, drives wire storage tube by drive D and rotates; Second driving shaft rotates, and drives nut and moves axially, and nut drives the wire storage tube pedestal and is located at about the interior wire storage tube of wire storage tube pedestal and walks; If need to adjust the upper-lower position of upper silk arm guide wheel, the castor action can be stirred quadric chain, because castor is to paste vertical guide plate to slide up and down, above arm guide wheel of institute just can be finished vertical elevating movement, and the state diagram after the adjustment as shown in Figure 3; When wire electrode carries out the line cutting to workpiece, because the Action of Gravity Field of weight, rotate counterclockwise around the rope dish, by rope pulling pumping arm action, swing arm swings and makes pinch roller compress the tension force of control electrode silk to wire electrode, because the gravity of weight is constant, so the pressure that acts on the wire electrode by pinch roller is also constant, thereby reach the purpose of permanent tension force control.

Claims

1. wire cutting machine, comprise wire winding drum device, upper silk arm guide wheel lifting device and tenslator, it is characterized in that: upper silk arm guide wheel lifting device comprises silk arm guide wheel (8), parallel four-bar linkage, castor (14) and vertical guide plate (15), vertical guide plate (15) is fixedly installed, castor (14) is pasting vertical guide plate (15) and is sliding up and down setting, parallel four-bar linkage vertically arranges by upper connecting rod (10), lower link (13), left connecting rod (11) and right connecting rod (9) are hinged and form, described upper silk arm guide wheel (8) is connected on the extension arm (10a) of connecting rod, described castor (14) is connected on the extension arm (11a) of left connecting rod, pin joint (12) position of right connecting rod (9) and lower link (13) is fixed, the center of this pin joint (12), the center sight alignment of the center of castor (14) and upper silk arm guide wheel (8), wire winding drum device comprises wire storage tube (1), the first power transmission shaft (4), second driving shaft (5), drive A, drive B, drive C, drive D and nut (6), wire storage tube (1) rotatably is located in the wire storage tube pedestal (2), drive A is fixedly installed at the first power transmission shaft (4), drive B endwisely slips at the first power transmission shaft (4) and arranges and be rotatably connected on the described wire storage tube pedestal (2), drive C is fixedly installed at second driving shaft (5), drive D is fixedly installed at the axle head of wire storage tube axle (3), being threaded that nut (6) and second driving shaft (5) axle head are provided with forms the screw thread transmission, nut (6) is fixed on the wire storage tube pedestal (2), the first power transmission shaft (4) is in transmission connection with motor (7), drive A and drive C are in transmission connection, drive B and drive D are in transmission connection, tenslator comprises around rope dish (16), weight (24), swing arm (17,22) and pinch roller (19,23), around the rotatable setting of rope dish (16), on rope dish (16), be connected with and make the described weight (24) that rotates around the rope dish, swing arm can swing setting, swing arm and the rope (18 that is connected on rope dish (16), 21) connect, described pinch roller is connected in the swing arm being located at wire storage tube (1) and the wire electrode (20 between the outlet of silk arm up and down, 25) compress.