CN102350549A

CN102350549A - Wire cutting machine

Info

Publication number: CN102350549A
Application number: CN2011102848168A
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: 2012-02-15
Anticipated expiration: 2031-09-23
Also published as: CN102350549B

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 exists following not enough: 1. in order to guarantee the cut quality of wire cutting machine; Require going up between silk arm guide wheel and processing work of wire cutting machine apart from adjusting; Require the guide wheel line vertical simultaneously with the workpiece face; In the prior art; The last silk arm guide wheel lowering or hoisting gear of wire cutting machine is formed framework by column, a last silk arm, a following arm; The adjustment of distance between last silk arm guide wheel and processing work; Be to go up the silk arm in the column guide groove, to drive through screw drive; 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 through 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; Drive the walking mechanism action through another axle head then; The shortcoming of said structure is; Vibration and rotating inertia force during the motor operation can influence 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; Because the influence of factors such as variations in temperature, wire electrode wearing and tearing; The tightening force of wire electrode can be lost gradually; Will greatly influence the crudy of line cutting like this; 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 of known technology existence at present, the technical problem that the present invention will solve is to be to provide a kind of simple and compact for structure, and the adjustment of last silk arm guide wheel is convenient, degree of regulation is high, and wire storage tube operates steadily, the wire cutting machine of the permanent Tension Control of wire electrode.

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

Wire cutting machine; Comprise the wire storage tube device; Last silk arm guide wheel lowering or hoisting gear and tenslator; It is characterized in that: go up silk arm guide wheel lowering or hoisting gear and comprise silk arm guide wheel; Parallel four-bar linkage; Movable wheel and vertical guide plate; Vertical guide plate fixedly installs; Movable wheel is pasting vertical guide plate and is sliding up and down setting; Parallel four-bar linkage vertically is provided with by last connecting rod; Lower link; Left side connecting rod and right connecting rod are hinged and form; The said silk arm guide wheel of going up is connected on the extension arm of connecting rod; Said movable wheel is connected on the extension arm of left connecting rod; The pin joint fixed-site of right connecting rod and lower link, the center of this pin joint; The center sight alignment of the center of movable wheel and last silk arm guide wheel.

In the said structure,, make movable wheel paste vertical guide plate and slide up and down, just can realize the vertical elevating movement of silk arm guide wheel through stirring linkage, compared with prior art, compact conformation not only, and adjust simple and conveniently, adjust the precision height.

The wire storage tube device comprises wire storage tube; First power transmission shaft; Second power transmission shaft; Drive A; Drive B; Drive C; Drive D and nut; Wire storage tube is rotatable to be located in the wire storage tube pedestal; Drive A fixedly installs on first power transmission shaft; Drive B is provided with and is rotatably connected on the said wire storage tube pedestal endwisely slipping on first power transmission shaft; Drive C fixedly installs on second power transmission shaft; Drive D fixedly installs at the axle head of wire storage tube axle; Being threaded that nut and second transmission shaft end are provided with forms the screw thread transmission; Nut is fixed on the wire storage tube pedestal; First power transmission shaft is connected with drive of motor; Drive A and drive C are in transmission connection, and drive B and drive D are in transmission connection.

In the said structure; 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 vibration during the motor operation and wire storage tube rotating inertia force is the very for a short time wire storage tube that has influence on just; Effectively improved 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 is increased.

Tenslator comprises around rope dish, weight, swing arm and pinch roller; Around the rotatable setting of rope dish; Be connected with the said weight that makes around the rotation of rope dish around Suo Panshang; Swing arm can be swung setting; Swing arm is connected with the rope that is connected on the rope dish, said 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; Gravity effect through weight makes around the rope dish rotates; Spur swing arm around the rope dish through rope; The swing arm swing makes pinch roller compress the tension force of control electrode silk to wire electrode; Because the gravity of weight is constant; So the pressure through pinch roller acts on the wire electrode is also constant, thereby reach the purpose of permanent Tension Control, said structure is very simple simultaneously.

In sum, the present invention is simple and compact for structure, and the adjustment of last silk arm guide wheel is convenient, degree of regulation is high, and wire storage tube operates steadily, and the permanent Tension Control of wire electrode compared with prior art, has outstanding substantive distinguishing features and obvious improvement.

Description of drawings

The present invention has following accompanying drawing:

Fig. 1 is the structural representation of wire storage tube device of the present invention;

Fig. 2 is a structural representation of going up silk arm guide wheel lowering or hoisting gear and tenslator of the present invention;

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

Among the figure: the 1-wire storage tube; 2-wire storage tube pedestal; 3-wire storage tube axle; 4-first power transmission shaft; 5-second power transmission shaft; The 6-nut; The 7-motor; The last silk of 8-arm guide wheel; The 9-right connecting rod; The last connecting rod of 10-; The extension arm of the last connecting rod of 10a-; 11-left side connecting rod; The extension arm of 11a-left side connecting rod; The 12-pin joint; The 13-lower link; The movable wheel of 14-; 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; Swing arm under the 22-; 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 been represented technical scheme of the present invention and embodiment, combines accompanying drawing to further describe each relevant details and operation principle thereof of embodiment below again.

With reference to accompanying drawing, this kind wire cutting machine comprises the wire storage tube device, goes up silk arm guide wheel lowering or hoisting gear and tenslator.

Like accompanying drawing 1; Said wire storage tube device comprises wire storage tube 1; Wire storage tube axle 3; Wire storage tube pedestal 2; First power transmission shaft 4; Second power transmission 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 rotatable being located in the wire storage tube pedestal 2; Drive A fixedly installs on first power transmission shaft 4; Drive B is provided with and is rotatably connected on the said wire storage tube pedestal 2 endwisely slipping on first power transmission shaft 4; Drive C fixedly installs on second power transmission shaft 5; Drive D fixedly installs at the axle head of wire storage tube axle 3; Being threaded that nut 6 and second power transmission shaft, 5 axle heads are provided with forms the screw thread transmission; Nut 6 is fixed on the wire storage tube pedestal 2; 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.

Like accompanying drawing 2; The said silk arm guide wheel lowering or hoisting gear of going up comprises silk arm guide wheel 8; Parallel four-bar linkage; Movable wheel 14 and vertical guide plate 15; Vertical guide plate 15 fixedly installs; Movable wheel 14 is pasting vertical guide plate 15 and is sliding up and down setting; Parallel four-bar linkage vertically is provided with by last connecting rod 10; Lower link 13; Left side connecting rod 11 is hinged with right connecting rod 9 and forms; The said silk arm guide wheel 8 of going up is connected on the extension arm 10a of connecting rod; Said movable wheel 14 is connected on the extension arm 11a of left connecting rod; Pin joint 12 fixed-site of right connecting rod 9 and lower link 13, the center of this pin joint 12; The center sight alignment of the center of movable wheel 14 and last silk arm guide wheel 8.Said tenslator; Comprise around rope dish 16; Weight 24; Top link 17; Following swing arm 22; Pinch roller 19 and pinch roller 23; Around rope dish 16 rotatable settings; On rope dish 16, be connected with and make the said weight 24 that rotates counterclockwise around the rope dish; Swing arm can be swung setting; Top link 17 is connected with the rope 18 that is connected on the rope dish; Following swing arm 22 is connected with the rope 21 that is connected on the rope dish; The swinging end that said pinch roller 19 is connected top link 17 compresses the wire electrode 20 that is located at said wire storage tube 1 and go up between the outlet of silk arm, and the swinging end that said pinch roller 23 is connected down swing arm 22 compresses being located at said wire storage tube 1 and following arm wire electrode 25 between exporting.

The present invention is work like this: motor rotates, and drives first and second power transmission shaft and rotates, and first power transmission shaft rotates, and drives drive B, drives wire storage tube through drive D and rotates; Second power transmission shaft rotates, and drives nut and moves axially, and nut drives the wire storage tube pedestal and is located at about the wire storage tube in the wire storage tube pedestal and walks; If desired the upper-lower position of last silk arm guide wheel is adjusted; Movable wheel action can be stirred quadric chain; Because movable wheel is to paste vertical guide plate to slide up and down, institute's above silk arm guide wheel just can be accomplished vertical elevating movement, and adjusted state diagram is shown in accompanying drawing 3; When wire electrode carries out the line cutting to workpiece; Because the gravity effect of weight; Rotate counterclockwise around the rope dish; Through rope pulling pumping arm action; The swing arm swing makes pinch roller compress the tension force of control electrode silk to wire electrode; Because the gravity of weight is constant,, thereby reach the purpose of permanent Tension Control so the pressure that acts on the wire electrode through pinch roller is also constant.

Claims

1. wire cutting machine; Comprise the wire storage tube device; Last silk arm guide wheel lowering or hoisting gear and tenslator; It is characterized in that: go up silk arm guide wheel lowering or hoisting gear and comprise silk arm guide wheel (8); Parallel four-bar linkage; Movable (14) and vertical guide plate (15) of taking turns; Vertical guide plate (15) fixedly installs; Movable wheel (14) is pasting vertical guide plate (15) and is sliding up and down setting; Parallel four-bar linkage vertically is provided with by last connecting rod (10); Lower link (13); Left side connecting rod (11) and right connecting rod (9) are hinged and form; The said silk arm guide wheel (8) of going up is connected on the extension arm (10a) of connecting rod; Said movable wheel (14) is connected on the extension arm (11a) of left connecting rod; Pin joint (12) fixed-site of right connecting rod (9) and lower link (13), the center of this pin joint (12); The center sight alignment of the center of movable wheel (14) and last silk arm guide wheel (8).

2. wire cutting machine as claimed in claim 1; It is characterized in that: the wire storage tube device comprises wire storage tube (1); First power transmission shaft (4); Second power transmission shaft (5); Drive A; Drive B; Drive C; Drive D and nut (6); Wire storage tube (1) is rotatable to be located in the wire storage tube pedestal (2); Drive A fixedly installs on first power transmission shaft (4); Drive B is provided with and is rotatably connected on the said wire storage tube pedestal (2) endwisely slipping on first power transmission shaft (4); Drive C fixedly installs on second power transmission shaft (5); Drive D fixedly installs at the axle head of wire storage tube axle (3); Being threaded that nut (6) and second power transmission shaft (5) axle head are provided with forms the screw thread transmission; Nut (6) is fixed on the wire storage tube pedestal (2); First power transmission shaft (4) is in transmission connection with motor (7); Drive A and drive C are in transmission connection, and drive B and drive D are in transmission connection.

3. wire cutting machine as claimed in claim 1; It is characterized in that: 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 said weight (24) that rotates around the rope dish; Swing arm can be swung setting; Swing arm is connected with the rope (18,21) that is connected on rope dish (16), said pinch roller be connected in the swing arm to be located at wire storage tube (1) and up and down the wire electrode (20,25) between the outlet of silk arm compress.