JPH0435828A - Work discharging device - Google Patents

Abstract

PURPOSE:To lighten the weight of a movable part and improve maintenance and outside appearance by shifting a magazine in reciprocation between a work insertion position and a work discharge position and discharging a work by turning the magazine by a rotary actuator. CONSTITUTION:When a rotary plate 25 is turned in the clockwise direction by a rotary actuator 21, an arm 27 is turned in the clockwise direction, and a magazine 37 is positioned at a work carrying-in position, and a work 3 after working is placed on the bottom plate 41 of the magazine 37. When the turning plate 25 is turned in the counterclockwise direction, the arm 27 turns in the counterclockwise direction until a stopper contacts a stopper bolt, and the magazine 37 is positioned at a work discharge position. When the turning plate 25 is turned in the counterclockwise direction furthermore, a swing plate 31 turns in the counterclockwise direction against the urging force of a spring 36, through the first connecting rod 35, and a lever 39 turns in the counterclockwise direction, and the magazine 37 turns, and rolls down a work 3 placed on the bottom plate 41, on a chute 7.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a carry-out device for carrying a workpiece from a processing machine to a carry-out chute.

<Prior art> For example, when automatic gear machining is performed, as shown in FIG. 7, the gear (workpiece) 3 that has been machined by the anti-cutting board 1 is transferred to the unloading chute (chute) 7 by the workpiece unloading device f5.
is discharged. The workpiece unloading device 5 has an L-shaped arm 9.
By rotating the workpiece 3 by 90 degrees around the vertical axis, the magazine that holds the workpiece 3 reciprocates between the main shaft 12 of the chamfering machine 1 and the shoe 7.

As shown in FIG. 8, the magazine is equipped with a shutter 15 on which the workpiece 3 is placed and which is opened and closed by the drive of the cylinder 13. The shutter 15 is closed near the main shaft 12 and the machined workpiece 3 is held in the magazine 11, and when the magazine 11 is positioned directly above the chute 7 due to the rotation of the arm 9, the shutter 15 is opened and the workpiece 3 is placed in the chute. It is discharged at 7.

In addition, the reference numeral 17 in FIG. 8 is a stopper for restricting the rotation of the arm 9 to 90 degrees.

By using the workpiece unloading device W5 described above, the machined workpiece 3 can be automatically discharged from the chamfer gll to the chute 7, and the next process [11! (for example, shaving gl), automatic gear machining becomes possible.

<MWi to be solved by the invention> In the conventional workpiece unloading device 5, the magazine 11 is equipped with a shutter 15 that is opened and closed by the cylinder 13, so the wiring and piping for the cylinder 13 is provided in the movable part, which increases the weight and increases the weight. It was also disadvantageous in terms of maintainability and appearance. Further, since a plurality of drive sources are required for rotating the arm 9 and closing Wj of the shutter 15, the control system becomes complicated and the operation time becomes longer.

Means for Solving the Problems> The configuration of the present invention for solving the above problems includes a rotary actuator having a drive shaft around a vertical axis, a rotating plate fixed to the drive shaft, and one end of which is attached to the drive shaft. An arm member that is rotatably supported and extends horizontally, a magazine that is rotatably supported around a horizontal axis at the tip of the arm member and on which a work is placed, and a vertical axis in the middle of the arm member. A rotary shaft member supported in a freely movable manner, one end of which is rotatably supported around a vertical axis at a non-rotatable center position of a rotary plate, and the other end is supported at a non-rotatable center position of the rotary shaft member. A first connecting rod is rotatably supported around the vertical axis, and one end is rotatably supported around the vertical axis at a non-rotating center position of the rotating shaft member and at a position different from the supporting position of the first connecting rod. a second connecting rod that is supported and whose other end is rotatably supported around a horizontal axis at a non-rotating center position of the magazine, and a first connecting rod that is provided across the arm member and the rotating shaft member. A spring biases the connected rotating plate and rotating wheel member, the rotating shaft member and magazine connected by the second connecting rod to a non-rotating state, and a spring that biases the rotating shaft member and the magazine in a predetermined rotation range of the drive shaft. The arm member is rotated integrally with the rotating plate via the first connecting rod and the spring, and the rotation of the arm member is restricted outside the predetermined rotation range of the drive shaft, so that the rotating plate is relative to the arm member. The rotating shaft member is rotated through the first connecting rod against the biasing force of the spring, and the magazine is further rotated through the second connecting rod to eject the workpiece in the magazine. It is characterized by comprising a stopper member.

<Operation> The urging force of the spring causes the rotating plate and rotating shaft member connected by the first connecting rod, and the rotating wheel member and magazine connected by the second connecting rod to be in a non-rotating state, and the arm member and rotating By making the rotary plate integral with the rotary plate and rotating the rotary plate via the drive shaft by driving the row reactuator, the arm member rotates and the magazine is positioned at a predetermined position for loading the workpiece.

By placing a workpiece in the magazine and rotating the rotary plate in the opposite direction, the arm member rotates until it is regulated by the stopper member, and when the arm member is regulated by the stopper member, the magazine moves to the specified position for ejecting the workpiece. located in position. Furthermore, when the drive shaft continues to be rotated by driving the row reactuator, the rotating plate continues to rotate with respect to the arm member. The rotary wheel member rotates via the first connecting rod, and the magazine further rotates via the second connecting rod, so that the workpiece in the magazine is discharged at a predetermined position for discharging the workpiece.

Embodiment> FIG. 1 shows a plan view of a workpiece unloading device according to an embodiment of the present invention, FIG. 2 shows a view taken from the II-U fastening arrow in FIG. 1, and FIG. 1 arrow view, Figure 4 shows the ■-■ line arrow view in Figure 1, Figure 5 shows the v-v line arrow view in Figure 2, and Figure 6 shows the arm member rotated toward the chute side. This is the view from the ■ arrow in FIG. 1. Incidentally, the same members as those shown in FIGS. 7 and 8 are given the same reference numerals, and redundant explanations will be omitted.

As shown in FIGS. 1 and 2, the low reactor actuator 21 is equipped with a g-movement shaft 23 that rotates around a vertical axis C, and a disk-shaped rotating plate 25 is provided at the upper end of the drive shaft 23. Fixed.

Further, one end of an L-shaped arm 27 (arm member) extending in the horizontal direction is rotatably supported on the drive shaft 23, and an intermediate shaft 29 is supported at a corner (midway) of the arm 27 around a vertical axis. It is rotatably supported. A substantially semicircular swing plate 31 is fixed to the intermediate shaft 29 on the lower surface side of the arm 27, and the swing plate 31 is fixed to the intermediate shaft 29 on the lower surface side of the arm 27.
3 is fixed. The intermediate shaft 29, the swing plate 31, and the swing arm 33 constitute a rotating shaft member.

One end of the first connecting rod 35 is supported rotatably around a vertical axis at a position offset from the center of rotation of the swing plate 25 (non-center position), and At the shifted position, the other end of the first connecting rod 35 is supported rotatably around a vertical axis. That is, the rotating plate 25 and the swinging plate 31 rotate in the same direction and by the same amount in synchronization via the first connecting rod 35. A tension spring (spring) 3 extends between the swing plate 31 and the other end of the arm 27.
6 is provided, and a spring 36 biases the swing plate 31 to rotate in the clockwise direction in FIG. 1 so as to press the swing plate 31 against the stopper 32.

As shown in FIGS. 1, 3, and 4, a swing shaft 34 is rotatably supported at the other end of the arm 27 about a horizontal axis, and is located inside the arm 27 (on the right side in FIG. 1). Swing axis 3 in
A magazine 37 on which the work 3 is placed is fixed to 4,
Swing shaft 34 on the outside of arm 27 (left side in FIG. 1)
A lever 39 is fixed to.

The magazine is composed of a swing shaft 34, a magazine 37, and a lever 39. The magazine 37 has a disc-shaped main body 4
0 is provided with a curved bottom plate 41, and the magazine 37
The workpiece 3 is placed on the bottom plate 41 and rotated to discharge the workpiece 3.

One end of a second connecting rod 43 is rotatably supported around a vertical axis at a position offset from the center of rotation of the swing arm 33, and the second connecting rod 43 is supported at a position offset from the center of rotation of the lever 39. The other end is rotatably supported around a horizontal axis. The swing arm 33 and lever 39 (magazine 37) are
The swinging arm 33 is synchronously rotated by the same amount via the second connecting rod 43, and the swinging arm 33 is biased by the spring 36 via the swinging plate 31 to move the magazine 37 to the non-rotating state via the lever 39. I have to.

As shown in FIGS. 2 and 5, a stopper bolt 44 is provided near the drive shaft 23 of the rotary actuator 21, and a stopper 47 is provided on the arm 27. When the stopper 47 hits the stopper bolt 44, the amount of rotation of the arm 27 is restricted to 90 degrees. That is, in a predetermined range (90 degrees) of the drive shaft where the stopper 47 does not hit the stopper bolt 44, the arm 27 rotates together with the rotating plate 25 via the spring 36, the swing plate 31, and the first connecting rod 35, The stopper 47 is the stopper bolt 44
Outside the predetermined rotation range of the drive shaft 23 in contact with the rotating plate 2
5 rotates with respect to the arm 27 to rotate the swing plate 31 counterclockwise in FIG. 1 via the first connecting rod 35 against the biasing force of the spring 36, and then 33, rotate the magazine 37 via the second connecting rod 43 and lever 39.

Next, the operation of the workpiece unloading device 50 having the above configuration will be explained.

Due to the biasing force of the spring 36, the swing plate 31 is moved to the stopper 32.
It is urged to rotate in the clockwise direction in FIG. 1 so that it comes into contact with the . In this state, the rotating plate 25 is connected via the first connecting rod 35.
When the swing plate 31 becomes non-rotatable, the second connecting rod 43
The swing arm 33 and the lever 39 are brought into a non-rotating state, and the rotation phase of the magazine 37 is set to a state where the work can be carried in, so that the swing plate 25 and the arm 27 are integrated.

The drive shaft 23 is driven by the rotary actuator 21.
When the rotating plate 25 is rotated in the clockwise direction in FIG. 1 through (see solid line in FIG. 1 and FIG. 3).

The processed workpiece 3 is placed on the bottom plate 41 of the magazine 37 by an external device (not shown).

When the rotary plate 25 is rotated in the counterclockwise direction in FIG. 1 via the drive shaft 23 by driving the row reactor 21 in the opposite direction, the arm is rotated by 90 degrees until the stopper 47 abuts against the stopper bolt 44. 27 is rotated counterclockwise, and the magazine 37 is positioned at a predetermined position for discharging the workpiece (directly above the chute 7) (see the dotted line in FIG. 1).

When the row reactuator 21 is further driven, the rotation [25] continues to rotate in the counterclockwise direction in FIG. 1 relative to the arm 27. The swing plate 31 rotates counterclockwise via the first connecting rod 35 against the urging force of the spring 36, and the lever 39 rotates via the swing arm 33 and the second connecting rod 43 as shown in FIG. Rotates in the middle counterclockwise direction. The magazine 37 is rotated by the rotation of the lever 39, and the workpiece 3 placed on the bottom plate 41 is rolled down onto the chute 7 (as shown in FIG. 6!Q).

When the row reactuator 21 is driven in the opposite direction again, the magazine 37 returns to the state where the workpiece 3 is placed by the operation opposite to that described above, and the swing plate 31 and the swing arm 33 are biased by the biasing force of the spring 36. The rotating plate 25 is in a biased state.
Then, the arm 27 becomes in a state where it can rotate integrally.

By repeating the above operations, the workpieces 3 processed by the chamfering machine 1 can be carried out one after another to the chute 7, and the workpieces 3 to the next processing machine [(for example, a shaving machine)
automatic machining of gears is possible.

In the workpiece unloading device 50 described above, the arm 27 is rotated by the drive of the rotary actuator 21, and the magazine 37 is moved between the vicinity of the main shaft 12 and directly above the chute 7.
:tjL You can move it. Further, by driving the same four-tally actuator 21, the magazine 37 located directly above the chute 7 can be rotated, and the processed workpiece 3 can be discharged onto the chute 7. Therefore, there is no need to provide a drive source for holding and releasing the work 3 in the magazine 37.

<Effects of the Invention> In the workpiece unloading device of the present invention, the arm member can be rotated by driving the row rear actuator, and the magazine can be reciprocated between the work loading position and the workpiece unloading position. By driving the actuator, the magazine located at the workpiece ejection position is rotated, and the workpieces placed in the magazine can be ejected. As a result, a drive source and wiring piping for holding and releasing the workpiece in the movable part become unnecessary, the weight of the movable part can be reduced, and maintainability and appearance are improved. Furthermore, since a single drive source can transport and discharge the workpiece, the control system can be simplified and the operating time can be shortened.

[Brief explanation of drawings]

1 is a plan view of a workpiece unloading device according to an embodiment of the present invention, FIG. 2 is a view taken along the line II-II in FIG. 1, FIG. 3 is a view taken along the I arrow in FIG. 1, and FIG. The figure is a view taken along the line ■-■ in FIG. 1, FIG. 5 is a view taken along the line V-V in FIG. 2, and FIG. 7 is a plan view of a conventional work writing device, and FIG. 8 is a perspective view thereof. In the drawing, 3 is a workpiece, 7 is an unloading chute, 21 is a foot rear actuator, 23 is a drive shaft, 25 is a rotating plate, 27 is an arm, 29 is an intermediate shaft, 31 is a rocking plate, and 33 is a rocker. A moving arm, 34 is a swing shaft, 35 is a first connecting rod, 36 is a tension spring, 37 is a magazine, 9 is a lever 3 is a second connecting rod, 7 is a stopper, and 0 is a workpiece unloading device.

Claims (1)

[Claims] A rotary actuator having a drive shaft around a vertical axis, a rotary plate fixed to the drive shaft, an arm member whose one end is rotatably supported by the drive shaft and extends horizontally, and a rotary actuator having a drive shaft around the horizontal axis at the tip of the arm member. A magazine is rotatably supported by the arm member on which a work is placed, a rotary shaft member is rotatably supported around a vertical axis in the middle of the arm member, and one end is located at the non-rotatable center position of the rotary plate. is rotatably supported around the vertical axis, and the other end is supported rotatably around the vertical axis at the non-rotating center position of the rotating shaft member; One end is rotatably supported around a vertical axis at the rotational center position and different from the support position of the first connecting rod, and the other end is rotatable around a horizontal axis at the non-rotational center position of the magazine. A supported second connecting rod, a rotating plate provided across the arm member and the rotating shaft member and connected by the first connecting rod, a rotating shaft connected by the rotating shaft member and the second connecting rod. A spring biases the member and the magazine to a non-rotating state, and the arm member is rotated integrally with the rotating plate via the rotating shaft member, the first connecting rod, and the spring within a predetermined rotation range of the drive shaft. At the same time, the rotation of the arm member is restricted outside the predetermined rotation range of the drive shaft, and the rotation plate is rotated relative to the arm member, and the rotation shaft member is rotated through the first connecting rod against the biasing force of the spring. A workpiece unloading device comprising: a stopper member that rotates the magazine via a second connecting rod and discharges the workpieces in the magazine by rotating the magazine via a second connecting rod.