JP3295401B2 - Bar-shaped workpiece supply machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bar-like work supply machine capable of accommodating a large number of bar-like works and replenishing an appropriate amount of the bar-like works in a machine tool such as an NC lathe.

[0002]

2. Description of the Related Art For example, an NC lathe can automatically process a bar-shaped work according to a predetermined program.
The NC lathe is provided with a feeder that automatically supplies a bar-shaped work to the NC lathe in order to save labor for the operator.

[0003] For example, a feeder for accommodating a rod-shaped work is provided with a path for arranging the rod-shaped works in a container and sequentially feeding the work.
The bar-shaped workpieces are sequentially fed along such a path and supplied one by one to the NC lathe.

[0004]

The main object of this feeding machine is to automatically feed bar-shaped works one by one to an NC lathe in a predetermined posture. Because this feeding machine is not structured to accommodate a large number of bar-shaped workpieces for that purpose,
Personnel are needed to replenish the bar machine with an appropriate amount of bar-like work in a timely manner.

[0005] Further, there is no suitable device for replenishing a bar-like work to a material supply machine. In particular, in order to operate the NC lathe unattended for a long time at night or the like, it is necessary that the replenishing device can accommodate a considerable number of bar-shaped works.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a rod-shaped workpiece supply machine capable of accommodating a large number of rod-shaped workpieces and supplying a suitable amount of rod-shaped workpieces in a timely manner.

[0007]

According to the present invention, there is provided a bar-shaped workpiece supply device comprising: a plurality of disks arranged on a horizontally arranged rotating shaft and rotating integrally; is formed on the spacing, have a holding groove for holding one end of a plurality of bar-like workpiece in the radial direction, accommodates a large number of rod-like workpiece
And replenish the machine tool with the right amount of rod-shaped work
A bar-shaped workpiece feeder, which has a shape following the arc shape of the disk, and a receiving member disposed close to a lower peripheral edge of the disk; and an upper end of one side of the receiving member, A discharge portion extending in a radial direction at a downward inclination angle from a position lower than the height of the center, a counter for counting the number of rod-shaped works discharged from the discharge portion and sent to the machine tool, and based on information of the counter. So that the groove moves upward from below toward the discharge portion side of the receiving member,
The disc to rotate by one pitch of the retaining groove, and a control unit for supplying a rod-like workpiece held in said groove, said tool
Depending on the number of pieces processed by the machine, the round bar
By number accommodated in the holding grooves be replenished in a timely manner, characterized in Rukoto.

It is preferable that the inner end face of the groove is chamfered. It is more preferable that the cross section inside the groove has a convex arc shape.

Further, it is preferable that the disc can be replaced with a disc having a different number, width and depth of the grooves.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a bar-shaped workpiece supply device according to an embodiment of the present invention.

As shown in FIG. 1, a rod-shaped workpiece supply device according to the present embodiment holds a round rod 1 as a rod-shaped workpiece and a rotatable disk 2 and prevents the round rod 1 from falling off. And a driving device 4.

As shown in FIG. 2, the disk 2 has a round rod 1
Is provided on the outer periphery for holding the groove. Holding groove 6
Are formed at equal intervals on the outer periphery of the disk 2. Disk 2
Are fixedly mounted on a horizontally arranged rotating shaft 5 by bolts 12 by means of a fixing tool 11. Five disks 2 are provided at predetermined intervals on the rotating shaft 5 so that the round rod 1 to be held is not largely bent by its own weight. Each disk 2 is mounted so that the positions of the holding grooves 6 coincide.

The holding groove 6 has a width larger than the outer diameter of the round bar 1 so that the round bar 1 can be inserted laterally.
The holding groove 6 has a depth that allows three round bar wires 1 to be inserted side by side. Therefore, this rod-shaped workpiece supply machine has a maximum of 18
It is possible to hold zero round bar wires 1.

Since the disk 2 is attached by the fixture 11, the holding groove 6 is set in accordance with the outer diameter of the round wire 1.
It is possible to change the number, width, depth, etc. For example, as shown in FIG. 4, when the outer diameter of the round rod 31 is large, the number of the holding grooves 32 is reduced to 40, and the width of the holding grooves 32 is increased.
It is assumed that the disk 30 is to be replaced with a disk 30 to be accommodated one by one.

As shown in FIGS. 3 (A) and 3 (B), the holding groove 6 can smoothly support the edge 6a of the end face of the holding groove 6 so that it can be supported in a state where the contact area with the round rod 1 is small. Beveling. The end surface of the holding groove 6 is smoothed by hard chrome plating 6b to reduce the frictional resistance with the round rod 1. As shown in FIG. 3 (C), the end face 6c inside the holding groove (6, 32) has an arc-shaped cross section in order to further reduce the frictional resistance with the round rod wire 1, and has a round bar shape. The wire 1 may be supported by point contact.

The receiving member 3 is provided below each disk 2 to prevent the round rod 1 from dropping out of the holding groove 6. As shown in FIG. 2, the receiving member 3 covers substantially half of the lower side of the disk 2 in the circumferential direction, and includes a receiving portion 3 a formed in an inner shape following the outer shape of the disk 2. The upper end 7 on one side of the receiving member 3 is configured to extend to a position higher than the center of the disk 2. On the side of the upper end 7, the holding groove 6
Before the container is inclined downward, the receiving portion 3a
Extends, the round bar 1 does not fall out of the holding groove 6. On the other hand, the upper end 8 on the opposite side of the receiving member 3
At a position lower than the center of the disk 2, a discharge unit 8 extending at a predetermined downward inclined angle is configured. That is, when the holding groove 6 moves from below to the position of the discharge portion 8, the round bar 1 falls off the holding groove 6 by its own weight and is discharged along the upper edge of the discharge portion 8. In the upper half of the disk 2, the round rod 1 is accommodated in the holding groove 6 by its own weight.

In order to reduce the frictional resistance between the receiving portion 3a and the receiving member 3, both ends (7, 8) are chamfered to reduce the frictional resistance between the receiving portion 3a and the receiving portion 3 and the contact area with the receiving portion 3a. The surface is smoothed by hard chrome plating after polishing by induction hardening.

The driving device 4 includes a driving motor 4a and a feed mechanism for rotating the rotating shaft 5. The feed mechanism includes a male screw 4b that is rotated by a drive motor 4a, and a turntable 4c that is provided integrally with the rotary shaft 5. Turntable 4
c is screwed into the male screw 4b and rotates at a predetermined rotation ratio with respect to the male screw 4b. That is, since the turntable 4c rotates a predetermined amount in accordance with the rotation amount of the male screw 4b,
By controlling the operation of the drive motor 4a, a desired amount of rotation can be given to the rotating shaft 5 and the disk 2. As shown in FIG. 5, the driving device 4 includes a control device 9 and is configured to intermittently rotate the disk 2 at a predetermined timing.

As shown in FIG. 5, the bar-shaped workpiece supply device is arranged so that the round bar wire 1 can be supplied in a predetermined posture to a material supply device 20 provided in, for example, an NC lathe (not shown). Reference numeral 21 in FIG. 5 indicates a work accommodating portion of the feeding machine 20, reference numeral 22 indicates a work feed path provided inside, and reference numeral 23 indicates a feeder for feeding the round bar wire 1 to the NC lathe. 2 shows a feed unit of the material machine 20.

As shown in FIG. 5, for example, the control device 9 provided in the drive device 4 includes a counter 25 on the side of the feeder 20 for counting the number of round rods 1 sent to the NC lathe. When the three round bar wires 1 are sent to the NC lathe based on the information of the counter 25, the control device 9 moves the holding groove 6 from the receiving portion 3 to the discharging portion as shown by an arrow A in FIG. 8, the disk 2 is rotated by one pitch of the holding groove 6 in the direction of moving from bottom to top.

When the disk 2 rotates one pitch, the round rod 1
Is discharged from the holding groove 6 in the discharge portion 8 of the receiving member 3 and supplied to the work accommodating portion of the material supply machine 20. That is,
This bar-shaped workpiece supply machine can accommodate a large number of round rods 1 in a disk 2 and, according to the number processed by an NC lathe, the number of round rods 1 accommodated in one holding groove 6 in a timely manner. Can be replenished.

The rod-shaped workpiece supply device according to one embodiment of the present invention has been described above, but the rod-shaped workpiece supply device of the present invention is not limited to this.

For example, the above-mentioned bar-shaped workpiece supply machine is provided with a disk 2
60 holding grooves 6 are provided, and three rod-shaped works are inserted and held by three. However, the diameter of the disk 2, the number of the holding grooves 6, and the number of the rod-shaped works accommodated by one holding groove 6 are set. The number and the like can be variously changed according to the shape of the bar-shaped work and the number of the bar-shaped works to be accommodated.

If the diameter of the disk is increased, more holding grooves can be formed, so that more work can be accommodated. When the outer diameter of the work is large, the diameter of the disk may be increased or the number of the holding grooves may be reduced so that the required number can be accommodated.

The rod-shaped work is not limited to a round rod. For example, in the above embodiment, the inclination angle of the discharge portion may be adjusted so that the discharge section can be discharged from the holding groove even if the cross section is square. Further, an extruder for extruding the rod-shaped work in the radial direction from the holding groove at the discharge portion of the receiving member may be provided so that the rod-shaped work can be reliably discharged.

Also, the bar-shaped workpiece supply device according to the present invention is
It can be used for various purposes other than the supply of the bar-shaped work to the NC lathe feeding machine.

[0027]

According to the present invention, there is provided a bar-shaped workpiece supply machine comprising a plurality of disks arranged on a horizontally arranged rotating shaft and integrally rotating, and formed at predetermined intervals in a circumferential direction of each of the disks. , have a holding <br/> groove for holding one end of a plurality of bar-like workpiece in the radial direction, and accommodates a large number of rod-shaped workpiece, the machine tool
A bar-shaped workpiece supply device for replenishing an appropriate amount of a bar-shaped workpiece in a timely manner, the bar-shaped workpiece having a shape following the arc shape of the disk, and a receiving member disposed in proximity to a lower peripheral edge of the disk; A discharge portion extending in a radial direction at a lower inclination angle from a position lower than the height of the center of the disk at an upper end on one side of the member, and a machine tool discharged from the discharge portion
And a counter for counting the number of rod-shaped workpieces sent to the container, and holding the disk so that the groove moves upward from the bottom toward the discharge portion side of the receiving member based on the information of the counter.
Rotate one pitch of the grooves, the rod-like workpiece held in the groove and a control unit for supplying and processed by the machine tool
Depending on the number, store the round rod wire in one holding groove of the disk.
It is designed to replenish the number of bottles in a timely manner. the above
By accommodating the rod-shaped works in all the circumferential grooves, a large number of rod-shaped works can be compactly accommodated, and a suitable amount of the rod-shaped works can be supplied in a timely manner.
Therefore, the bar-shaped workpiece supply device according to the present invention can reduce the number of times of supplying a bar-shaped workpiece by an operator, and can improve work efficiency. In addition, for example, the NC lathe can be operated unattended for a long time, and for example, the number of workers to be secured in night operation can be reduced.

Further, the bar-shaped workpiece supply device according to the present invention is
Since the inner end face of the groove is chamfered, the frictional resistance in the groove is reduced by reducing the contact area between the rod-shaped work and the groove,
The supply of the bar-shaped work can be made smooth. Further, when the inside cross section of the groove has a convex arc shape, the rod-shaped work is held in point contact, so that the frictional resistance in the groove becomes smaller and the rod-shaped work can be supplied more smoothly.

Further, since the disk can be replaced with one having a different number of grooves, a different width, a different depth, etc., it is possible to change the shape and the number of rod-shaped workpieces to be used.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rod-shaped workpiece supply device according to an embodiment of the present invention.

FIG. 2 is a plan view of a disk according to one embodiment of the present invention.

FIG. 3A is a plan view of a holding groove portion according to an embodiment of the present invention. (B) is an aa cross-sectional view showing a shape of a holding groove with a chamfered end face according to an embodiment of the present invention. (C) is sectional drawing which shows the shape of the holding | maintenance groove | channel which the end surface which concerns on other embodiment girder of this invention is a convex arc shape.

FIG. 4 is a plan view of a replacement disk according to one embodiment of the present invention.

FIG. 5 is a schematic view showing a use state of the bar-shaped workpiece supply device according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Round rod wire 2 Disk 3 Receiving member 4 Driving device 5 Rotating shaft 6 Holding groove 8 Discharge part 9 Control device 11 Fixture 25 Counter

Claims (4)

(57) [Claims] 1. A plurality of disks disposed on a horizontally arranged rotating shaft and rotating integrally, and one ends of a plurality of rod-shaped workpieces formed at predetermined intervals in a circumferential direction of each of the disks and in a radial direction. have a holding groove that holds the,
Accommodates a large number of bar-shaped workpieces, and is suitable for machine tools
In a rod- shaped work supply machine for replenishing an appropriate amount of a rod-shaped work, a receiving member having a shape following the circular arc shape of the disk, disposed near the lower peripheral edge of the disk, and one side of the receiving member. At the upper end, a discharge portion extending in a radial direction at a downward inclination angle from a position lower than the height of the center of the disk, a counter for counting the number of rod-shaped works discharged from the discharge portion and sent to the machine tool, On the basis of the information on the counter, the disk is moved so that the groove moves upward from the bottom toward the discharge section side of the receiving member.
Rotate one pitch of the retaining groove, and a control unit for supplying a rod-like workpiece held in said groove, machined in the machine tool
According to the number of round rods, fit the round rod wire into one holding groove on the disk.
Rod-shaped workpiece feeder characterized that you replenished in time by the number obtained by volume. 2. A bar-shaped workpiece supply machine according to claim 1, wherein an inner end surface of said groove is chamfered. 3. The bar-shaped workpiece supply machine according to claim 1, wherein a cross section inside the groove has a convex arc shape. 4. The disk according to claim 1, wherein said disk is replaceable with a different number, width, depth and the like of said grooves.
4. A bar-shaped workpiece supply machine according to any one of claims 1 to 3.