KR0168630B1 - A wire saw - Google Patents

Abstract

It is a wai which winds a workpiece by the wai which travels between multiple plural-roller groups in the multiple parallel state, and runs between the plural rollers.

By rotating the multi-way roller forward and backward, while moving the wai between the multi-way rollers, gradually moving the feeder from the supply side to the recovery side. The cutting circle of the workpiece and Waia are brought close to the point contact by the swinging arc cutting of, and by applying a lot of concentrated load by the contacting part, the allowable part of the Waia makes the most effective use of the tension to speed up the cutting speed and cut Increase machining precision

Furthermore, the speed distribution mechanisms arranged on the supply and recovery sides of the Waia are driven by endless ropes that move along the same trajectory as the Waia, absorbing the relaxation and contraction occurring on the supply and recovery sides of the Waia, By circulating in one direction by feeding and retrieval motor, the wai moving along with endless rope is gradually moved from supply side to recovery side to stabilize and speed up the reciprocating running speed of the wai cutting the workpiece. Let's do it.

Description

Waia Top

1 is a front view of a first embodiment showing a Wai-a top of the present invention.

2 is a perspective view of a first embodiment showing a Wai-a top of the present invention.

Fig. 3 is an enlarged front view showing the roller portion having a large groove in the first embodiment showing the Wai Top of the present invention.

4 is a cross-sectional plan view of the first embodiment showing the Wai Top of the present invention.

5 is an enlarged cross-sectional view showing a work cut.

FIG. 6 is a front view showing a second embodiment of the Waiaw.

FIG. 7 is a perspective view showing a second embodiment of the Waia saw; FIG.

8 is an enlarged cross-sectional plan view of the workpiece cut.

9 is an explanatory diagram of computer control of the Wai-a-Top.

10 is an enlarged cross-sectional view showing a conventional workpiece cutting portion.

* Explanation of symbols for main parts of the drawings

1: supply side 2,3,11,12: middle roller

4: normal speed distribution mechanism 5,9: fixed roller

6,10: Operation roller 7,8: Multi-home roller

13: recovery measurement date 15, 16: weight

28: endless belt 29: belt drive motor

34: drive motor 51,54: moving pulley type speed distribution mechanism

52,55: fixed pulley for Waia 53,56: mobile pulley for Waiia

57: infinite rope 59,62: slide carriage

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a Wai-A saw for cutting a work using a Wai-A traveling between a plurality of multi-groove rollers. Wai-a saw that winds a single row of wires supplied from the supply section in a multi-parallel shape on the outside of the multiple multi-grommed roller groups and moves them to the recovery side to reciprocate the Wai-la and move the workpiece at the position between the multi-grommed roller groups. Is already known.

As described above, the Wai-A saw arranges a fixed roller and a movable roller which sequentially passes the Wai-A between the multi-groove roller and the Wai-a supply section and the multi-home roller and the Wai-a recovery section for circulating the Wai-a from the outside, The moving roller is approached and disengaged, and the workpiece is cut into the Wai-A moving between the multi-groove rollers while gradually moving to the recovery side while reciprocating between the grooves. The cutting by lapping is performed while infiltrating the mixed solution.

In order to obtain effective cutting results with the above-mentioned saw, it is possible to apply a large concentrated load to the contact surface of the workpiece and to make the most of the allowable tension of the workpiece. In the case of using, it is necessary to uniformly infiltrate the mixed solution of abrasive and lapping oil between the wire and the workpiece to smoothly discharge the chip.

However, the conventional wai saw has a structure in which the multi-way roller is fixedly arranged to rotate at a predetermined position and cut while pushing the workpiece on the attachment table with respect to the wai which is moving linearly. As shown, the contact surface of the wire B against the workpiece A is in line contact.

However, if the contact surface of the wire (A) to the workpiece (A) is in line contact, the flow of the abrasive and the lapping oil mixed liquid at the contact surface is bad, there is a problem that the resistance to the wire is increased and the cutting effect is lowered.

In addition, if the above contact surface is in line contact, chip discharge worsens and causes a decrease in cutting effect. In addition, in case of a line contact structure, the tension of the wire is dispersed and the concentrated load cannot be applied to the workpiece. There is a problem that the allowable added tension cannot be used effectively.

In addition, the Wai-A saw needs to cut and process the workpiece by winding a single Wai-A in multiple parallel rows on the outer side of the multiple multi-roller group, and giving reciprocating motion to the Wai-A moving from the supply side to the recovery side. In the post-war process of the roller group, the relaxation and contraction of the Waia occur alternately on the supply and recovery side of the Waiar.

Therefore, it is necessary to adopt a mechanism that gives the wai the reciprocating motion while absorbing the contraction and relaxation occurring in the wai.

In the conventional Waia saw, the above-described mechanism is provided with a fixed pulley and a moving pulley that sequentially passes the Waia between the multi-groove group and the Wai-a supply unit that circulates the Wai-a to the outside and between the multi-home roller group and the Wai-a recovery unit. The above-mentioned movable pulley group is attached to a slide carriage having a large weight, and reciprocates the slide carriage by one direction rotation of the drive motor using a crank mechanism, thereby allowing endless ropes to cross the fixed pulley and the moving pulley. Through the rope, the multi-groove roller is indirectly rotated and inverted to move the Waiah back and forth while moving back and forth from the outside of the multi-groove roller group.

However, the above contraction and relaxation absorbing mechanisms have the following problems.

(1) The structure of reciprocating the slide carriage with the drive motor using the crank mechanism to absorb the reciprocating movement, relaxation and contraction of Waia has to move the slide carriage of a large weight, so that the energy loss compared to the processing purpose This is large and there is a limit in speeding up for the purpose of improving the processing accuracy and increasing the workload, and the machinery becomes large.

(2) The high transmission capacity is applied to the entire drive system as the forward and reverse drive is provided to the multi-way roller group with an endless rope for the purpose of driving the multi-way roller through the moving pulley type speed mechanism and the crank mechanism. This requires the size of the entire drivetrain in terms of strength, and therefore requires the use of elongated special endless ropes, such as belts or chains with teeth on both sides, both of the Waiar drive and the mobile pulley mechanism. Special endless ropes are expensive and uncommon for procurement and difficult to obtain.

(3) In the high-speed range using the above-mentioned special endless rope, there are severe noises and vibrations, and there is a limit to speed-up for the purpose of improving the processing precision and increasing the workload.

(4) Because the special endless rope is used, the pulley of the moving pulley type and the pulley wheel of the sprocket become a special toothed wheel, so it is expensive and the wheel size is reduced for the purpose of miniaturizing the device. If the diameter of is small, the rotation is not desired due to the unique polygonal motion, and it may cause vibration and noise.Tensile fluctuations occur in the delicate Wia that is driven together, causing disconnection or deterioration of machining accuracy. Cause.

(5) Since the crank mechanism is used to give wai motions to Waiia, the traveling speed of Waiia is constantly changing while drawing a sinusoidal curve. It prevents the uniform penetration of lubricating oil and smooths the chip discharge, and causes the decrease in processing precision and the reduction of work load.

(6) In order to improve processing accuracy and increase work load in order to increase the speed, Waia's reciprocating driving motion has a low cycle and stroke length in view of uniform intrusion stabilization of abrasives, facilitating chip discharge, prevention of vibration and reduction of parts. Although the enlargement is preferable, since the crank mechanism is used for the reciprocating movement of the moving pulley, the crank rotation radius is inevitably limited, and the increase in the number of pulleys of the moving pulley type speed distribution mechanism is inevitably necessary for the expansion of the stroke length. Problems arise from the viewpoint of cost increase, vibration, and repair.

(7) The endless rope is circulated in one direction by the Waia supply and recovery motor, and the differential rotation drive is directly applied to the multi-stage roller group that is forward and reverse rotation by means of the moving pulley type transmission mechanism and the crank mechanism. As the subordinate movement of the Waiah is gradually moved from the supply side to the recovery side, there is an increase and decrease difference in the reciprocating speed of the Waiah by the differential rotational speed. When the supply of fresh lines and the speed of recovery of spherical vessels are accelerated, the difference of Wai-a round trip speed is more remarkable, so that the uniformity of abrasive material between the workpiece and Waia due to the constant run of the entire round trip is It prevents intrusion stabilization and smooth chip evacuation and causes a decrease in processing accuracy and a reduction in workload.

Accordingly, a first object of the present invention is to provide a wire saw that allows the contact surface of the workpiece to approach the point contact in the conventional line contact, speeds up the cutting transfer speed, and increases the cutting precision.

The second object of the present invention is to bring the contact surface of the workpiece with the point contact, so that a large concentrated load is applied by the contact portion, and the allowable tension of the wire can be effectively used to the maximum, and the cutting speed can be increased. It is to provide a Waia top that can.

In the third object of the present invention, the chip is easily discharged from the workpiece cut portion by the wire, and even when the glass abrasive is used, uniform penetration is performed at the contact portion. It is to provide a Wiatop that can speed up.

The fourth object of the present invention is to shorten or omit the next process of the workpiece, and to minimize the consumption of consumer materials such as Waia, grindstone, and lapping oils, and to reduce operating costs of machine operation. To provide the Wiatop.

The fifth object of the present invention is to provide the forward and reverse rotational motion of the multi-grommer group by the direct drive motor to provide the reciprocating driving motion to the Waia, and to allow the movable pulley type distribution mechanism to absorb only the contraction and relaxation of the Waia. It is possible to provide high speed for the purpose of reducing the energy loss, improving the processing precision and increasing the work load, and reducing and minimizing the mechanical device.

The sixth object of the present invention is that the drive system for absorbing the contraction and relaxation of the Waiah through the moving pulley type speed mechanism, and gradually moving the Waiah from the supply side to the recovery side, has a low power capacity and a small size, so it is simple. In addition, it is advantageous to provide flexibility and multi-axis transmission, and it is a universal sawing tool for procurement at a low price, and it is to provide a Wai-a saw which can use endless ropes.

The seventh object of the present invention is to improve the processing precision and speed up by the constant speed running, by absorbing the contraction and relaxation of the wire by moving pulley type speed mechanism, and also effectively use the entire length of the mechanical device. It is possible to arrange freely, to reduce the number of pulleys to lengthen the stroke length, and further to provide a wire saw without tension fluctuations in the wire and to prevent disconnection accidents.

First, a description will be given based on the first embodiment shown in FIGS. 1 to 5.

FIG. 1 and FIG. 2 show the whole structure of the Wai-a saw, and the Wai-a B discharged from the supply side rail 1 passes through the intermediate rollers 2 and 3, After passing through the fixed roller (5) and the movable roller (6) in turn and is wound on the outside of the plurality of grooved rollers (7), (8) disposed below the forward and reverse speed mechanism (4), and again the forward and reverse speed mechanism (4) ) Is fixed to the fixed roller (9) and the movable roller (10) in turn, and is wound on the recovery side rail (13) via the intermediate roller (11), (12), the multi-groove roller (7), The work A attachment table 14 is arranged to move up and down just below the waa B moving between (8).

The feeding side B ₁ and the collecting side B ₂ of the Waia B are weights 15 and 16 suspended from the middle rollers 2, 3, 11 and 12. A constant tension is added by

The forward and reverse speed mechanism (4) is provided with a long hole (18) in the vertical direction in the slide carriage (17) freely reciprocating in the horizontal direction, the pin is attached to the crank arm (20) of the reciprocating motor (19) (21) is fitted to the long hole 18, and the slide carriage 17 is horizontally reciprocated by a fixed stroke by the rotation of the pin 21. As shown in FIG.

The fixed roller 5 moves through the horizontal long hole 22 installed in the slide carriage 17, and the movable roller 6 moves the slide carriage against the axial movement of the slide carriage 17. Attached directly to 17, the slide carriage 17 is reciprocated to move away from the fixed roller 5. As shown in FIG.

The pulleys 25 and 26 are attached to the shaft 23 of each fixed roller 5 and the shaft 24 of the movable roller 6, and are located above the group of these pulleys 25 and 26. In the pulley 27, the endless belt 28 extends over the pulleys 25 and 26 of the forward and reverse speed mechanism 4 at the same position as the Waia B, so that the pulley 27 feeds and One direction rotation is provided by the receiving belt drive motor 29, and the fixed roller 5 and the movable roller 6 are rotated together with the movement of the wire B. As shown in FIG.

The multi-groove rollers 7 and 8 are attached to the rotation member 31 disposed directly below the forward and reverse speed mechanism 4, and the endless belt 28 is reciprocated by the reciprocating operation of the slide carriage 17. It is driven forward and backward by.

As a result, the Waiah across the multi-groove rollers 7 and 8 moves forward and backward at double speed.

The rotating member 31 is formed in a disk shape as shown in FIG. 4, and is supported on the fixed support wall 32 so as to be rotatable about a horizontal axis, and the driving motor 34 on the worm wheel 33 installed on the outer circumferential surface thereof. Worm 35 is engaged to give a reciprocating rotational motion of a predetermined angle.

The multi-groove rollers (7) and (8) are rotatably attached to the horizontal shaft (36) and (37) at both positions sandwiching the rotary shaft from one side of the rotating member (31) so that the other side of the rotating member (31) can be rotated. Pulley 38, 41 and 37, wherein the pulley 38, shaft 39, and the shafts 36, 37 of both the multi-groove rollers 7, 8 are fitted along the center of rotation axis, It is interlocked by 42.

The endless belt 28 is wound around the pulley 38, and both the grooved rollers 7 and 8 are rotated forward and backward and rotated to the outside of both grooved rollers 7 and 8 of the Simultaneous movement to the reciprocating operation and the recovery is performed.

The workpiece cutting portion B ₃ moving between the two multi-groove rollers 7 and 8 of the wire B by the reciprocating rotational motion of the pivot member 31 has a center of the rotation axis of the pivot member 31. It swings to the center, and swings the work A to cut into circular arcs.

The rotation member 31 drive mechanism may be driven by a motor using pulleys and belts in addition to the worm wheels 33 and worms 35 as shown.

The rotating member 31 can be rotated by the driving motor 34, which is why the winder work wound in the state of winding the wire B in parallel with the outer grooves of the multi-groove rollers 7 and 8 is performed. Can be automated.

That is, the winder roller 43 and the winder roller movement control shaft 44 for moving the roller 43 in the axial direction are provided directly on the rotating member 31, so that the roller for the winder as shown in FIG. Wia (B) drawn out through (43) is directed toward the outer periphery of the multi-way rollers (7) and (8), and the continuous rotation of the rotating member (31) and the movement of the roller movement control shaft (44) for the winder are carried out. It is possible to wind the wire (B) at a predetermined interval on the outer side of the multi-groove rollers (7), (8), it is possible to wind the winding work in the conventional setting place in the setting position, automation of the winding work The preparation time before processing can be shortened.

The first embodiment of the Waia saw of the present invention has the configuration as described above, and the rotational movement of the belt 28 by the belt drive motor 29 also reciprocates the forward and reverse speed mechanism 4 in the motor 19. By movement, the movement to the reciprocating operation and the recovery side is simultaneously given to the Waia B. The workpiece A is pushed onto the Waia moving between the multi-groove rollers 7 and 8, and the Waia B and the workpiece The mixed liquid of the abrasive and the wrapping oil is supplied to the contact portion of (A).

When the work A is cut, the rotating member 31 is reciprocally rotated by the driving motor 34 to cut while swinging the wire between the multi-groove rollers 7 and 8.

If the workpiece A is cut while swinging the Waia B, it swings as shown in Fig. 5, and the contact surface between the Waia B and the workpiece A is close to the point contact by the arc cutting, and the concentrated load is applied to the contact portion. In addition, the allowable added tension of Waia (B) can be used as effectively as possible. The effect of the effective use of the additional tension to give rigidity to this Waia (B) is very large, it is an important indispensable element to speed up the cutting speed and increase the degree of cutting surface.

In addition, since the contact portion between the wire (B) and the work piece (A) is close to the point contact, uniform penetration of the glass abrasive material is actively and easily performed at the contact portion, and furthermore, the chip is easily discharged, so that the cutting ejection rate is increased. Faster, cutting can increase the process density. In addition, it is possible to shorten or omit the next step of the workpiece and to minimize the consumption of consumer wires, such as abrasives, abrasives and wrapping oils, thereby reducing the operating cost of machine operation.

Next, a second embodiment shown in FIGS. 6 to 8 will be described.

Here, the same components as in the first embodiment will be described with the same reference numerals.

6 and 7, the pulley B drawn out from the supply side rail 1 passes through the middle roller 2 and the dense roller 3a and is fixed to the moving pulley type distribution mechanism 51. As shown in FIG. After rolling over the pulley 52 and the moving pulley 53 in turn, the outer side of the plurality of multi-groove rollers 7 and 8 is wound in multiple parallel states, and the fixed pulley for the wia of the movable pulley type speed-sharing mechanism 54 55) and a wye which is spread over the pulley 56 and is wound around the return side rail 13 through the dense roller lla and the middle roller 12, and moves between the multi-groove rollers 7 and 8. The attachment label 14 of the work piece A is placed under the lower part B so as to move up and down, and the supply side Bl and the retrieval side B2 of the above-mentioned wia B are the dens roller 3a. A constant tension is added by the weights 15 and 16 which are suspended in the, 11a.

In addition, the formal force part of the Waia B may use an electric sliding clutch. The above-mentioned both moving pulley type distribution mechanisms 51 and 54 are arranged so as to be balanced in parallel with each of the supply side B _l and the recovery side B ₂ of the wai B. The pulley type distribution mechanisms 51 and 54 are provided with endless ropes 57 so as to move together in the same trajectory to the operation of the Wai B.

The movable pulley type speeding mechanism 51 positioned on the supply side B ₁ of the above-mentioned wia B has a fixed pulley for the wia at both ends of the shaft 58 in which a plurality of copies are arranged in parallel in a horizontal position at a fixed position ( 52) and the endless rope fixed pulley 52a, and the plurality of shafts 60 are horizontally attached to the slide carriage 59 arranged in the lower part of the fixed pulley 52a group so as to be operated up and down, Both ends of the shaft 60 are attached to the moving pulley 53 for the end and the moving pulley 53a for the endless rope.

In addition, the moving pulley type speeding mechanism 54 located at the recovery side B _{2 of the} Waia B has the same structure as the moving pulley type speeding mechanism 51 described above, and is used for both ends of the shaft 61 of the plurality of shafts. Fixed pulley 55 and endless rope fixed pulley 55a are attached to the pulley 55a, and the pulley for pulley 56 is arranged on the shaft 63 of the slide carriage 62 which is arranged to be operated up and down at the bottom of the fixed pulley 55a group. And the moving pulley 56a for the endless rope is attached.

The supply side B ₁ of the Waia B is sequentially spread over the fixed pulley 52 for the pulley of the mobile pulley type speed distribution mechanism 51 and the movable pulley 53 for the Waiar, and similarly the recovery side B ₂ . The fixed pulley 55 and the movable pulley 56 for the wia of the movable pulley type speed-closing mechanism 54 are sequentially spread.

In addition, the endless rope 57 and the pulley 52a and the moving pulley so that the trajectories of the endless rope 57 and the endless rope 57 are parallel to the same trajectory and the same movement as the Waiar B. 53a, fixed pulley 55a, and moving pulley 56a are sequentially spread over.

The slide carriages 59 and 62 of the above-described two moving pulley type distribution mechanisms 51 and 54 have an upper connection rope 65 spanning the upper fixed pulleys 64 and 64, and a lower fixed pulley. Connected to the endless by applying a constant tension as a lower connection rope 67 over the (66) so that both slide carriages (59) and (62) are in a straight reciprocating motion in the opposite direction, and the The supply side (B _l ) and the recovery side (B ₂ ) allow to absorb the contraction and relaxation that occurs alternately.

In addition, the endless rope 57 can be used alone or in combination of steel wire rope, plastic rope or composite rope, these ropes can be easily obtained at a cheap price of the required length and In addition, because the pulley wheels used for the fixed pulleys 52a, 55a and the moving pulleys 53a, 56a, etc. have a simple structure, they are inexpensive, and in addition, the ropes generate little noise or vibration during high-speed rotation, and pulleys Even if the diameter of the wheel is made small, there is an advantage that the rotational nonuniformity does not occur, and tension tension is applied to the driven Wia (B), which does not cause disconnection accident.

The multi-groove rollers (7), (8) group is attached to the rotating member 31 disposed in the lower portion between the two moving pulley type speed mechanism (51), 54, the rotating member 31 as shown in FIG. Is supported so as to be rotatable about the horizontal center axis 39 at the fixed support wall 32, and the horizontal axis 36 is attached to both positions of the central axis 39 on one side of the pivot member 31. (7) and (8) are equipped with multi-groove rollers (7) and (8), respectively, and the cog wheels (40), (41) and (42) which are engaged with the central axis (39) and both shafts (36) and (37). The drive motor 70 is interlocked with the central shaft (39) and the forward and reverse rotation of the multi-way rollers (7), (8) is connected.

Therefore, by the drive motor 70, the multi-groove rollers (7) and (8) groups are directly given reverse rotation, and the reciprocating driving motion is given to the Wai (B) wound around the multi-groove rollers (7) and (8) groups. .

In the rotating member 31, as shown in FIG. 3 of the first embodiment, the worm 35 of the driving motor 34 meshes with the worm wheel 33 provided on the outer circumferential surface and reciprocates a predetermined angle. The workpiece is cut and the workpiece cut portion B _{3 of the} Waia B moving between the multi-groove rollers 7 and 8 swings around the axis of rotation of the pivot member 31 and removes the workpiece A. It swings like 5 degrees and cuts into an arc.

The driving mechanism of the rotating member 31 may be driven by the motor 72 using the pulleys and belts 71 shown in FIGS. 1 and 2, and in any case, the rotating member 31 may be driven by the motor 70. ), 72 can be rotated, and this can be automated to wind the winder (B) in parallel with the outer side of the multi-way roller (7), (8).

That is, the winder roller 43 and the winder roller movement control shaft 44 for moving the roller 43 in the axial direction are provided directly on the rotating member 31, so that the multi-groove roller ( 7), (8) The wia B can be automatically wound around the outer periphery at predetermined intervals.

The pulley 38 is fixed to the central shaft 39 to which the driving motor 70 is connected in order to directly and reversely rotate the multi-groove rollers 7 and 8, and both moving pulleys of the endless rope 57 are fixed. A portion that moves between the mechanisms 51 and 54 spans the pulley 38, driving the endless rope 57 together with the reciprocating motion of the Waia B, thereby both slide carriages 59 The upper and lower straight reciprocating lines (62) and (62) are provided to absorb the contraction and relaxation occurring alternately on the supply side B ₁ and the recovery side B _{2 of the} Waia B. The upper running portion of the endless rope 57 is stretched over the pulley 27 of the wire feeding and belt driving motor 29, so that the motor 29 is an endless rail driving chain (Fig. 1). 73, the Wai-a supply side rail 1 and the Wai-a recovery side rail 13 are driven in rotational motion. By driving this motor 29, the wa-a B is supplied to the supply side B _l. ) Is gradually moved to the recovery side B ₂ .

In addition, the drive of the recovery side rail 13 may be driven alone by another motor.

Thus, the Waia (B) is a reciprocating driving motion by the forward and reverse rotation of the multi-groove rollers (7), (8), the swinging circular motion and the movement from the supply side (B _l ) to the recovery side (B ₂ ) and combined movement The work B is cut while

In addition, as shown in FIG. 1, the upper limit detection switch S1 and the lower limit detection switch S2 are disposed within the upper and lower operating ranges of the slide carriage 62, and the forward and reverse rotation switching control of the drive motor 70 is performed. have.

The second embodiment of the Waia saw of the present invention is configured as described above, the rotational movement of the endless rope 57 by the motor 29 and the rotational movement of the Waia supply side seal 1 and the recovery side seal 13 By moving the via (B) from the supply side (B _l ) to the recovery side (B ₂ ) and at the same time the multi-way rollers (7), (8) by forward and reverse drive directly to the drive motor 70 (B) gives a reciprocating running motion, and further, by the drive motor 70 described above, the same locus and the same motion as the Waia (B) to the endless rope 57, the multi-groove rollers (7), (8) The workpiece A is pushed to the wire B moving between them, and the mixed liquid of the abrasive and the wrapping oil is supplied to the contact portion between the wire B and the workpiece A. The rotating members 31 are reciprocally rotated by the motors 34 and 72, and the cutting is carried out while swinging the wire between the grooves 8 as shown in FIG. 3 and FIG. .

The Waia B alternates with each other in contraction and relaxation on the supply side B ₁ and the recovery side B ₂ during the reciprocating traveling motion.

At this time, the endless rope 57 is the same trajectory, the same movement on the Wai (B), both moving pulley type transmission mechanism (51), 54 is the slide carriage 59 of the contraction of the Wai (B) occurred (62) is raised and the slide carriage on the side where the relaxation occurs is lowered, and the supply side (B _l ) of the Wai (B) by the linear reciprocating motion alternately generated up and down of both slide carriages (59) and (62) ) And recovery side (B ₂ ) to absorb the contraction and relaxation that occurs alternately.

In the second embodiment, the driving motor 70 directly gives the forward and reverse rotation of the multi-groove rollers 7 and 8 to give the wai reciprocating driving motion to the wai B. The running speed is stable in a constant speed line, and it promotes the effective use of all round trips and the uniform penetration of the abrasives between the workpiece (A) and the wire (B) by the constant speed, and the smoothing of chip discharge. It is possible to improve processing accuracy and increase work load. In addition, the multi-groove rollers (7) and (8) are provided with the forward and reverse rotation motion directly to the drive motor (70), and the front and rear of the multi-groove rollers (7) and (8) groups absorb the shrinkage and relaxation of the Waia (B). In order to move the moving pulley type speeding mechanisms 51 and 54 in parallel and in a balanced manner, the moving pulley type speeding mechanisms 51 and 54 constituted by a fixed carriage and a slide carriage having a moving pulley are arranged in parallel. It is possible to reduce the energy loss, speed up the process for the purpose of improving the processing accuracy and increasing the work load, and to reduce the size and size of the machinery.

Furthermore, since the multi-way rollers 7 and 8 are directly driven forward and backward with the driving motor 70, the reciprocating traveling motion is given to the Waia, so there is no restriction on the long stroke by the driving method. The movable pulley type distribution mechanisms 51 and 54 for the purpose of absorbing the contraction and relaxation of the body can be freely arranged by effectively utilizing the full length of the mechanical device, and can achieve long stroke by reducing the number of pulleys. have.

In addition, the endless rope 57 is circulated in one direction by the wire feeding and collecting motor, and the moving pulley type distribution mechanisms 51 and 54 for the purpose of absorbing the contraction and relaxation of the wire B are provided. By giving a differential motion and gradually moving the Wai (B) driven together with the endless rope (57) from the supply side to the recovery side, the reciprocating speed of the Wai (B) on the group of multi-groove rollers (7) and (8) Since the forward and reverse rotation control is performed by the multi-groove drive motor 70 at constant speed, the increase and decrease of the wai reciprocating speed caused by the above-described differential motion does not occur and the work due to the constant speed driving of the entire reciprocating driving section (A ), And to promote uniform penetration of abrasives and smooth chip discharge between Wia (B) and to improve the processing precision and increase the work load, and to supply the Waiah fresh wire, recovery of wire and multi groove roller (7) Waiwa round-trip operation of group (8) Wai-ya contraction and relaxation, which occur alternately in the east, are processed without over-shortening by using the endless rope 57 to move the same trajectory and movement together. Therefore, tension fluctuation does not occur in Wai-ya (B). The accuracy can be improved. Furthermore, as shown in Fig. 9, when the Wia saw is controlled by a computer,

1) Control of Waire conveying speed 2) Control of Waire reciprocating amount 3) Control of swing angle of multi-groove rollers 4) Control of lifting speed of workpiece 5) Control of winding speed and number of turns of multi-groove rollers according to the set value have.

For example, in the case where the swing angle of 3 to 1 of 5 to be displayed on the display unit is set to 15 degrees and 50 minutes, the numbers 1, 5, 5 and 0 of the setting unit are pressed. This 1550 is displayed at the swing angle of the display section 3.

When the above setting is completed, press the enter part of the setting unit.

In other words, the position is controlled by the setting-> decoding, display-> computation-processing section via recording-> pulse-conversion-part-server-server driver-server motor-encoder.

Moreover, when a part of apparatus is operated independently, it is performed by the run button of a setting part.

Claims (1)

Winding one bone Waia in multiple parallel shape on the outside of the multiple multi-way rollers (7) and (8), and rotating the multi-way rollers forward and backward to reciprocate the Wai-a (B) between the multi-way rollers (7) and (8) In the eye saw, which is gradually moved to the recovery side B ₂ while cutting the work piece A into a waa B moving between the multi groove rollers, the multi groove rollers 7 and 8 are driven by the drive mechanism. Attached to the rotating member 31 to which the reciprocating rotation is given about a certain shaft center, and to swing the wire (B) between the workpiece (A) roller cutting the workpiece (A), the multi-groove roller (7) The fixed roller (5) and the movable roller (6), which hangs the via (B) in turn, at the positions of the supply side (B ₁ ) and the recovery side (B ₂ ) of the wa 5 to further approach leaving operate the movable roller (6) with respect to, and this O while the reciprocating operation on dahom rollers 7, 8 is gradually recovered side (B ₂₎ The multi groove rollers (7) and (8) are driven by the direct drive motor (34) to impart forward and reverse rotation, and the reciprocating operation of the wire (B) is performed. (7) A moving pulley capable of operating up and down at a fixed pulley 52, 55 and a lower portion of the fixed pulley before and after the feeding side B ₁ and the collecting side B ₂ of (8) and (8). 53, the slide carriage 59, moving pulley expression of a 62-speed mechanism 51, placing the 54 and Y ah (B) for holding (56) the supply side (B ₁₎ and recovery The movable pulleys 51 and 54 of the side (B ₂ ) are sequentially hooked to the fixed pulleys 52 and 55 and the movable pulleys 53 and 56 for the waa. Infinite-rope 57 and 54, the endless rope 57 over the fixed pulley and the moving pulley so that the endless rope to move together in the same trajectory, with both ends Amount with moving pulleys of 51 and 54 The ride carriages 59 and 62 are connected to each other in a straight reciprocating motion by a separate rope, and the endless rope 57 is driven by the driving motor 72 of the multi-groove roller, and both moving pulleys The slide carriages 59 and 62 of the speed distribution mechanisms 51 and 54 are linearly reciprocated to absorb the contraction and relaxation of the Waila, which alternately occur, and to supply and retrieve the Waia B. The endless rope 57 is traversed in one direction by a side motor, thereby giving differential movement to both moving pulley type transmission mechanisms 51 and 54, and moving together along the endless rope 57; A Wai saw, characterized by gradually moving B) from the supply side (B ₁ ) to the recovery side (B ₂ ).

Images