JPH06704A - Rod material feeding device for rod material feeder - Google Patents

Abstract

PURPOSE:To stock a plurality of rod materials and to perform the feed of the rod materials one by one to the feed guide of a rod material feeder. CONSTITUTION:An inclining table 18 is arranged adjacently to a feed guide 13 and a take-out stopper 21 to place only a single rod material on the inclining table 18 is provided. A rod material containing part 31 having a moving type shelf plate 33 rockable in a state to place a number of rod materials 19 is arranged to the side of the inclining table 18 and by rocking the moving type shelf plate 33, the rod materials 19 held thereon can be arranged. Further, a vertically moving take-out member 49 is positioned adjacently to the inclining table 18 and the rod materials are fed to the inclining table 18. Thereafter, a take-out stopper is moved aside and the rod materials are fed to the feed guide 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supplying a bar material to a bar material supplying machine for supplying a bar material to be machined to a spindle of a machine tool, particularly an automatic lathe, and more particularly to a device for supplying a plurality of bar materials. The present invention relates to a bar material supplying device for a bar material supplying machine for stocking and taking out the bar materials one by one and supplying the bar material to a delivery guide of the bar material supplying machine.

[0002]

2. Description of the Related Art Conventionally, a bar feeder is provided adjacent to a machine tool such as an automatic lathe.
They are supplied one by one into the main spindle of an automatic lathe (for example, Japanese Patent Laid-Open No. Sho 60-71102, Shokai Sho 63).
-189503 gazette).

FIG. 6 shows an example of a conventional bar material feeder. The bar material feeder, which is generally designated by reference numeral 1, has a main shaft axis line behind a main shaft (not shown) of an automatic lathe. The feeding guide 2 arranged on the same axis, the pushing member 4 for pushing the rear end of the rod 3 held in the feeding guide 2 to push the rod 3 into the main shaft, and the pushing member 4 are driven. A driving device 5 such as a belt is provided. A bar material supplying device 7 for supplying the bar materials 3 to the delivery guide 2 one by one is provided near the bar material supplying machine 1. This bar material feeding device 7 has a belt 8 having projections 8a with a constant pitch and adapted to hold the bar material 3 between the projections 8a, a pulley 9 around which the belt 8 is hung, and a pulley 9 thereof. A drive device (not shown) for intermittently driving the projections 8a by one pitch
And the bar 3 delivered from the belt 8 is delivered to the delivery guide 2
It has an inclined surface 10 that guides you to drop it into
By stocking a plurality of rods 3 between the protrusions 8a of the belt 8, it is possible to feed the rods 3 one by one to the delivery guide 2 of the rod feeder 1. In addition, a plurality of these belts 8, pulleys 9 and the like are provided in parallel at appropriate intervals in the axial direction of the bar material, and long bar materials are held at a plurality of places.

[0004]

However, in the conventional rod feeding device 7, when the rods 3 are stocked, they must be placed one by one on the belt 8, which is troublesome. was there. In addition, since the bar stocks 3 are horizontally arranged and stocked, they occupy many places. Therefore, there is a problem that the stock quantity is small relative to the installation space.

The present invention has been made in view of the above problems, and it is possible to put and stock rods without aligning them and take out the stocked rods one by one. An object of the present invention is to provide a bar material supplying device for a bar material supplying machine which can supply the delivery guide of the supplying machine and can increase the stock amount.

[0006]

DISCLOSURE OF THE INVENTION The present invention, which has been made to achieve the above object, is provided adjacent to a delivery guide of a rod feeder so that a rod can be fed to the delivery guide on the upper surface. An inclined table having an inclined inclined surface, an operating position that allows only one bar to be placed on the inclined table, and a bar placed on the inclined table rolling on the inclined table. It has a take-out stopper that is movable to a retreat position that allows it, and a bar member accommodating portion that is arranged adjacent to the inclined table and that accommodates a large number of bar members. A bar material feeder having a movable shelf board that supports the bar and swings up and down, and an ejecting member that vertically moves at a position adjacent to the tilt table and pushes up the bar material onto the tilt table. The main point is a bar feeding device.

[0007] Here, the movable shelf plate is made swingable around the tilt table as a fulcrum, and the take-out member is attached to a tip end of a take-out arm which is swingable around a side distant from the tilt table as a fulcrum. Further, it is preferable that the take-out arm and the movable shelf board are drivingly connected so that the movable shelf board swings downward when the take-out arm rocks in a direction of raising the take-out member.

[0008]

In the bar material feeder having the above-mentioned structure, the bar materials are randomly placed on the movable shelf board, and when the stocked material is stocked, the movable shelf board is swung, so that the bar materials are put on the bar stock material. Even if the rods are in a crossed state, they can be loosened and put in parallel. Further, the take-out member moves up and down, lifts the bar, and puts it on the inclined table. At this time, since the take-out stopper is in the operating position where only one bar can be placed on the tilt table, only one bar is on the tilt table.
After that, when necessary, the take-out stopper escapes to the retracted position to release one bar on the tilt table, so that the bar is rolled on the tilt table and supplied to the delivery guide.
After that, the take-out stopper returns to the original operating position, the take-out member moves up and down, and one rod is placed on the inclined table again. After that, by repeating the same operation, it becomes possible to supply the rods one by one to the delivery guide. Here, it is not necessary to horizontally arrange the bar members, and it is sufficient to simply put them on the movable shelf board, so that a large number of bar members can be stocked in a small space.

As described above, the take-out member is attached to the take-out arm, and when the take-out arm swings in the direction of raising the take-out member, the take-out member is taken out so that the movable shelf board swings downward. When the arm and the movable shelf board are drivingly connected, when the take-out arm is turned upward and the bar is taken out,
The movable shelf is pushed down by the weight of the bar, and its force can be used for the upward rotation of the take-out arm. Conversely, when the movable shelf is raised, the take-out arm descends, so that the force is exerted by the weight. Can be used to raise the movable shelf, and the power required for swinging the take-out arm and the movable shelf can be reduced.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention shown in the drawings will be described below. FIG. 5 is a schematic plan view schematically showing a bar material feeder for an automatic lathe and a bar material feeder according to an embodiment of the present invention for supplying the bar material one by one to the bar material feeder. is there. Reference numeral 11 is an automatic lathe, and 12 is a rod material feeder arranged behind the automatic lathe. A delivery guide 13 for guiding the rod material, and a rod pushing device for feeding the rod material in the delivery guide 13 to the automatic lathe. (Not shown) and the like. Reference numeral 15 is a bar material feeding device arranged adjacent to the delivery guide 13.

FIG. 3 is a schematic sectional view of the bar feeding device 15 shown in FIG. 5 as seen in the direction of arrow CC, and FIG. 4 is an arrow D- of FIG.
It is the schematic sectional drawing seen in the D direction, and the extraction stopper and the bar are omitted. In FIGS. 3 and 4, reference numeral 16 denotes a support plate which is provided at right angles to and perpendicular to the delivery guide 13, and supports the delivery guide 13. This support plate 1
6 are arranged at appropriate intervals along the delivery guide 13 (see FIG. 5). Reference numeral 18 is an inclined table provided adjacent to the delivery guide 13 and having an inclined upper surface 18 a so that the bar 19 can be fed into the delivery guide 13. The tilt table 18 includes a side plate 18A having a substantially vertical side surface 18b, and a plurality of projecting portions 18B provided so as to project from the side plate 18A toward the delivery guide 13 side.

Reference numeral 21 denotes a take-out stopper, and an operating position (a position shown in FIG. 3) that allows only one bar 19 to be mounted on the tilt table 18, and the bar 19 rolls on the tilt table 18. It is provided so as to be movable to a retracted position that allows it to fall. Reference numeral 22 is a proximity switch arranged near the lower end of the take-out stopper 21, and is provided so as to detect the bar 19 placed on the tilt table 18.

In FIG. 3, reference numeral 23 denotes a push bar (not shown) for pushing a bar member in the delivery guide 13.
It is an operating shaft for putting in and out, and is connected to a driving device such as an air cylinder (not shown) so as to be reciprocally rotatable at a predetermined angle. Reference numeral 24 denotes a fixed frame holding the operation shaft 23, and 25 denotes a support shaft rotatably held by the fixed frame 24, which extends along the delivery guide 13. A plurality of ejection stoppers 21 are attached to the support shaft 25.
Are fixed at appropriate intervals. 26 is its support shaft 25
A block fixed to one end of the support shaft 27 is a bracket fixed to a drive shaft (not shown) rotatably provided on an extension line of the support shaft 25 and extends above the block 26. 28 is an adjusting screw attached to the bracket 27 so that the tip can contact the block 26, 2
A spring 9 is provided between the block 26 and the bracket 27. This spring 29 moves the block 26 into the adjusting screw 28.
The bracket 27 and the block 26 are pivotable together. The drive shaft holding the bracket 27 rotates counterclockwise in response to the rotation when the operation shaft 23 rotates clockwise to take out a push rod (not shown) in the delivery guide 13 upward. Thus, it is connected to the operating shaft 23 via an appropriate cam mechanism. Thus, when the operation shaft 23 rotates in the clockwise direction, the drive shaft and the bracket 27 connected thereto rotate in the counterclockwise direction, and the support shaft 25 also rotates in the counterclockwise direction accordingly, and the take-out stopper 21 is moved to the position shown in FIG. Can be moved from the operating position shown in to the retracted position, and the removal stopper 21 can be returned to the operating position by the reverse rotation. The adjusting screw 28 is for adjusting the relative angular position between the drive shaft and the supporting shaft 25. By adjusting the adjusting screw 28, the supporting shaft 25 is rotated, and thereby the take-out stopper 21 is supported. By rotating the shaft 25 around the central axis, the position of the take-out stopper 21 with respect to the tilt base 18 can be adjusted, and the position of the take-out stopper 21 can be adjusted according to the diameter of the bar 19. The operation shaft 2 is used to drive the drive shaft.
Instead of utilizing the rotation of 3, an air cylinder or the like may be directly connected to the drive shaft and driven.

Reference numeral 31 is a bar accommodating portion provided adjacent to the inclined table 18 for accommodating a large number of bar members 19. One side of the rod accommodating portion 31 is regulated by the side surface 18b of the inclined table 18, and the opposite side is regulated by the protrusion 16a formed on the support plate 16 so as to protrude upward. This side 1
A movable shelf 33 is provided so as to support the bar 19 housed between the 8b and the protrusion 16a. The movable shelf plate 33 is swingably held by a fulcrum pin 34 attached to the support plate 16 in the vicinity of the tilt table 18, as shown in FIG.
It can swing up and down as indicated by arrow E.

Further, in order to swing the movable shelf 33, a take-out shaft 36 is rotatably held by the projecting portion 16a of the support plate 16, and the take-out shaft 36 has a first lever 37. It is fixed. The first lever 37 has a U at its lower end.
It has a V-shaped groove 37a. Below the first lever 37, a second lever 40 swingably held by a fulcrum pin 38 attached to the support plate 16 is provided, and the second lever 40 is the groove 37 a of the first lever 37. It has a pin 41 movable inside. Furthermore, the second lever 40
Are connected to the movable shelf board 33 via pins 42, links 43, and pins 44. Thus, by reciprocally rotating the take-out shaft 36, the first lever 37 swings as shown by the arrow F, the second lever 40 swings in the direction of the arrow G around the fulcrum pin 38, and through the link 43. The movable shelf 33 can be swung up and down as indicated by arrow E. Reference numeral 46 denotes a spring connected so as to exert a spring force so as to push the movable shelf 33 upward as shown in FIGS. 1 (a) and 3.

As shown in FIG. 1B, the take-out arm 4 is placed on the side opposite to the movable shelf 33 with the support plate 16 interposed therebetween.
8 is fixedly provided on the take-out shaft 36. A take-out member 49 is attached to the tip of the take-out arm 48 (end portion on the side of the inclined table 18), and when the take-out arm 48 swings by the take-out shaft 36, the upper end of the take-out member 49 moves vertically along the side plate 18A. It is designed to move. As shown in FIG. 2B, the upper surface 49a of the take-out member 49 is inclined toward the inclined table 18 side. Thus, when the take-out member 49 rises, the bar member 19 is held and lifted on its upper surface 49a,
It can be sent to the upper surface 18a of the tilt table 18. The width of the upper surface 49a of the take-out member 49 may be any width as long as at least one rod 19 having the maximum diameter to be handled can be placed thereon, and a width on which a plurality of rods can be simultaneously placed when handling a rod having a small diameter. It does not matter if it is.

The take-out shaft 36 is connected to a drive unit such as an air cylinder (not shown) so as to reciprocate over a certain angle range. The rotation angle range of the take-out shaft 36 is
The upper end of the extraction member 49 has the movable shelf plate 33 or the support plate 16
It is determined so that it can be moved from a position (position shown in FIG. 1) lower than the bar 19 held by the above to a position where the bar 19 held thereon can be delivered to the upper surface 18a of the tilt table 18. ing. Further, as described above, the movable shelf plate 33 also swings up and down at the same time by the reciprocating rotation of the take-out shaft 36. At that time, as shown in FIG.
When the take-out member 49 is in the lowered position, the movable shelf 33 is in the raised position, and the upper surface 33a of the movable shelf 33 is in the fulcrum pin 3 position.
Although the fourth side is inclined so as to be low, when the take-out member 49 rises, the movable shelf 33 descends, and when the take-out member 49 rises to the upper end position, the upper surface 3 of the movable shelf 33 is lowered.
The first lever 37 and the second lever 4 are arranged so that 3a falls below the upper surface of the support plate 16 and inclines in the direction opposite to the previous direction.
0, the length of the link 43, etc. are defined. Thus,
As the movable frame 33 swings up and down, the bar material on the movable frame 33 is unraveled and sent to the inclined table 18.

The take-out stopper 21, the movable shelf 33, the take-out arm 48, the take-out member 49, etc. are all provided in plural sets at appropriate intervals in the longitudinal direction of the bar stocked in the bar stock 31. They are arranged and driven by the common operation shaft 23 and extraction shaft 36, respectively.

Next, the operation of the rod feeding device 15 having the above construction will be described. A large number of rods 19 are loaded and stocked at an appropriate time in the rod accommodating portion 31 provided adjacent to the delivery guide 13. At this time, the rods do not necessarily have to be placed in parallel in a precise manner, and the rods may partially intersect each other. Therefore, it is possible to easily insert the bar material. Further, since the rods can be stocked in a stacked state as shown in the drawing, a large number of rods can be stocked.

Now, the take-out shaft 36 is in the position shown in FIGS. 1 (a) and 1 (b), and the take-out arm 48 and the take-out member 49.
Is in the lowered position, and the movable shelf 33 is in the upper position. Further, the take-out stopper 21 is assumed to be in a predetermined operating position with respect to the tilt table 18. In this state, the take-out shaft 36 rotates counterclockwise. As a result, FIG.
As shown in (a) and (b), the take-out member 49 rises,
At the same time, the movable shelf 33 swings downward, breaking down the pile of the bar 19 held on it. Then, the take-out shaft 36
Is reversed, the take-out member 49 is lowered, the movable shelf 33 is raised, and the mountain of the bar 19 is broken down again. During this operation,
When the bar 19 is placed on the take-out member 49, the bar 19 is lifted, and the upper surface 18a in which the upper surface 49a is inclined.
When the bar 19 is moved until it coincides with, the bar 19 is sent out onto the inclined table 18. If the bar 19 is not supplied onto the tilt table 18, this operation is repeated. As a result, even if the bar material 19 is inserted in a state where the bar material 19 intersects the movable shelf board 33, the intersection is released by the swing of the movable shelf board 33, and the bar material 19 is placed on the upper surface of the extraction member 49. Rides and is sent out on the inclined table 18.

When the bar 19 is fed out onto the inclined table 18 and held at the position where it comes into contact with the take-out stopper 21, the proximity switch 22 provided on the take-out stopper 21 detects it, and the take-out shaft 36 is moved to the position shown in FIG. Stop at the position shown in. Here, since only one bar 19 can be mounted on the inclined table 18 by the take-out stopper 21, the bar 19
Even if a plurality of rods are placed on the upper surface 49a of the take-out member 49, only one rod is placed on the inclined table 18, and the other rods descend together with the take-out member 49. . Thus, only one bar is placed on the ramp 18.

Next, when the bar material (not shown) in the delivery guide 13 is sent to the automatic lathe and it becomes necessary to supply new bar material into the delivery guide 13, the operating shaft 23 is moved to the position shown in FIG. Rotates in the clockwise direction, and accordingly, the support shaft 25 rotates in the counterclockwise direction to retract the take-out stopper 21 upward. As a result, the one bar 19 placed on the tilt table 18 is released, and the tilt table 18 rolls and is fed into the delivery guide 13. After that, the operation shaft 23 rotates in the opposite direction to return the take-out stopper 21 to the original position to prepare for the next operation. By repeating the above operation, the bar stock appropriately stocked in the bar stock portion 31 is supplied to the delivery guide 13 one by one.

In the above embodiment, the take-out member 49 for lifting the stocked bar material 19 and supplying it to the tilting table 18, and the movable shelf that swings to align the stocked bar material 19. Although the plate 33 is driven by the common take-out shaft 36, the take-out member 49 and the movable shelf plate 33 may be driven by different drive mechanisms. However, as in the illustrated embodiment, the common drive shaft 36
The use of is preferable because the drive mechanism can be simplified. Also,
When the movable shelf 33 and the take-out member 49 are driven by the common take-out shaft 36, it is preferable to lower the movable shelf 33 when the take-out arm 48 is raised, because the required power can be reduced.

Further, in the above embodiment, the case where the bar material feeding device of the present invention is used in the automatic lathe has been described, but the bar material feeding device of the present invention is not limited to this application, and the work can be performed by supplying the bar material. It can be used for other machines (rolling machines, centerless grinding machines, etc.) and has a wide range of applications.

[0025]

As described above, in the bar material feeding apparatus of the present invention, the inclined table is provided adjacent to the delivery guide to which the bar material is to be supplied, and the bar material accommodating portion is further adjacent to the inclined table. Since the movable shelves that support and swing the rods are provided in the bar accommodating portion, the rods are randomly placed and stocked on the movable shelves. Even if the movable shelves are swung, the rods can be loosened and aligned, which facilitates the rod insertion operation. Further, in the present invention, since the take-out stopper that restricts only one rod member to be mounted on the tilt base is provided, and the take-out member is provided so as to move vertically adjacent to the tilt base, Even if the materials are stocked in a state of overlapping on the movable shelf board, only one bar can be placed on the inclined table by the vertical movement of the extraction member, and then, the extraction stopper is provided when necessary. By evacuating, the one bar on the tilt table can be released and supplied to the delivery guide, so that it is possible to stock a large number of bars in a small space.

It should be noted that the take-out arm and the movable shelves are mounted such that the take-out member is attached to the take-out arm and the movable shelf plate swings downward when the take-out arm is swung in the direction of raising the take-out member. If the plates are drive-connected, the bar will start moving when the movable shelf starts tilting downward when the bar is taken out by rotating the take-out arm upward, and the bar is pushed down by the weight of the bar. And the force can be used to rotate the take-up arm upward, and conversely, when the moveable shelf is raised, the take-out arm is lowered, so the force can be used to raise the moveable shelf due to its weight. The power required for swinging the take-out arm and the movable shelf can be reduced.

[Brief description of drawings]

1A is a schematic cross-sectional view of a bar material feeding device according to an embodiment of the present invention as seen in the direction of arrow AA in FIG. 4, and FIG. 1B is the bar material feeding device shown in FIG. Schematic cross-sectional view seen in the BB direction

FIG. 2 (a) is the same schematic sectional view as FIG. 1 (a) showing the rod feeding device in an operating state different from FIG. 1, FIG. 2 (b) is the rod feeding device shown in FIG. The same schematic sectional view as in FIG. 1 (b) showing different operating states

FIG. 3 shows a bar feeding device according to an embodiment of the present invention.
Schematic sectional view as seen in the direction of arrow C-C in FIG.

FIG. 4 shows a part of the bar feeding device, which is indicated by an arrow DD in FIG.
Schematic plan view seen in the direction

FIG. 5 is a schematic plan view of the bar material supply device, the bar material supply machine, and the like.

FIG. 6 is a schematic cross-sectional view showing a conventional bar material supplying device and a bar material supplying machine.

[Explanation of symbols]

 11 Automatic Lathe 12 Bar Material Feeder 13 Feeding Guide 15 Bar Material Feeding Device 16 Support Plate 18 Tilt Table 19 Bar Material 21 Extraction Stopper 23 Operation Axis 33 Movable Shelf Board 34 Support Point Pin 36 Extraction Axis 38 Support Point Pin 43 Link 48 Extraction Arm 49 Extraction member

Claims (2)

[Claims] 1. A tilt table provided adjacent to a delivery guide of a bar feeder and having an inclined surface on the upper surface so that the bar can be fed to the delivery guide, and 1 on the tilt table. A take-out stopper that is movable to an operating position that allows only one bar to ride, and a retracted position that allows the bar placed on the tilt table to roll on the tilt table; And a bar stock accommodating portion for accommodating a large number of bar stocks, the bar stock accommodating section supports a large number of bar stocks and swings up and down, and A bar material feeding device for a bar material feeding machine, comprising: a take-out member that moves up and down at a position adjacent to the tilt table and pushes up the bar material onto the tilt table. 2. The movable shelf board is swingable around the tilt table as a fulcrum, and the take-out member is attached to a tip end of a take-out arm swingable around a side distant from the tilt table as a fulcrum. Further, the take-out arm and the movable shelf plate are drive-connected so that the movable shelf plate swings downward when the take-out arm swings in a direction of raising the take-out member. A bar material feeding device for a bar material feeding machine according to claim 1.