JPH085154Y2 - Work supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a work supply device for supplying a work to a work processing device one by one.

(Prior art and its problem) Conventionally, a work supply device that supplies a work to a work processing device is stacked on a work guide and a work conveying unit that carries the work into and out of the work processing device. The work storage unit is configured to drop the stored works one by one from the bottom onto the transporting means, and these are driven by separate dedicated actuators.

For this reason, there is a problem that the number of constituent parts of the work supply device increases and the manufacturing cost increases.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a work supply device capable of reducing the manufacturing cost.

(Means for Solving the Invention) In order to achieve the above object, according to the present invention, a work is conveyed to a work machining apparatus, and along with a work conveyance unit that conveys the work from the work machining apparatus and a work guide. In a work supply device including a work accommodating section that drops the stacked work pieces one by one from the bottom, the work conveyance section has an inclined surface that lowers the other end as compared with one end. , A locking part for locking the work to slide on the base plate is formed at the other end, and reciprocates on the base plate so that one end is below the work guide at the first position. Are respectively located in the work processing device, and the locking portion is located below the work guide at the second position, and an actuator for reciprocating the transport member between the first position and the second position. On the base plate when the conveying member is moved forward from the first position to the second position, the work forming device side of the base plate and the chute is made lower than the work accommodating portion side. And a step portion that guides the workpiece that slides to the workpiece discharge portion provided on the side of the base plate by removing the workpiece from the locking portion, and the workpiece storage portion is provided at a position near the lower end of the workpiece guide. Work locking means that is disposed and that prevents the work stacked in the work guide from falling due to the elastic force of the elastic member,
The workpiece locking means is disposed on the transporting member, presses the workpiece locking means when the transporting member is located at the first position, and resists the elastic force of the elastic member to lock the workpiece by the workpiece locking means. And a work dropping means for releasing the work in the work guide to drop the work in the work guide, the work guide having a lower end with a slight gap between the work guide and the work member at the first position. From the work guide to the second position, hold the relative position in the horizontal direction of the work dropped from the work guide onto the conveying member and gradually drop along the inclined surface of the conveying member. It is configured to be locked to the locking portion.

(Operation) The transport member is moved to the first position and the second position by the actuator.
It is reciprocated to and from the position.

When the transport member is moved to the first position by the actuator, the work dropping means releases the locking of the work by the work locking means and drops the work onto the transport member from within the work guide. The transport member has one end located below the work guide at the first position, and there is only a slight gap between the lower end of the work guide and the transport member. Therefore, with respect to the work dropped on the transport member, only the lower part of the work is exposed from the work guide, and the upper part is stored in the work guide.

Then, when the transport member starts to move forward, the work is held at the horizontal relative position with respect to the base plate by the work guide and gradually falls along the inclined surface of the transport member. At the same time, the work locking means prevents the work from falling inside the work guide. When the transport member is moved forward to the second position, the work falls on the locking portion and is locked by this.

When the work is locked by the locking portion, the transport member moves back from the second position toward the first position, and the work slides on the base plate. At this time, the work falls through the step formed on the base plate and passes there.

When the transport member moves back to the first position, the work is carried into the work processing apparatus and processed by the work processing apparatus. At the same time, the work dropping means drops the next work from the work guide to the transport member.

Then, when the processing of the work is completed, the transport member is moved to the second position.
Move toward the position. Therefore, the work processed by the work processing device slides on the base plate toward one end of the base plate. At this time, the processed workpiece is
It is not possible to get over the step of the base plate, and the work is discharged to the work discharging part along this step. On the other hand, due to the forward movement of the transport member, the next work dropped on the transport member gradually drops along the inclined surface, is locked by the locking portion, and is carried into the work processing apparatus.

Embodiment An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

1 and 2 show an embodiment of a work supply device to which the present invention is applied. The work supply device 1 supplies a work 3 to a work processing device 2 (FIG. 2). The work 3 is, for example, a speed change gear housed in a transmission of a vehicle, and the work processing device 2 processes teeth on the speed change gear. Further, the work supply device 1 and the work processing device 2 can correspond to, for example, five types of speed change gears.

The work supply device 1 includes a base plate 6, a work transfer unit 7, and a work storage unit 8. As shown in FIG. 3, the base plate 6 includes a main plate 10 and an extension plate 11.
And these are integrally formed.

The main body plate 10 has a substantially rectangular shape. One side edge of the body plate 10
A long hole 10e is formed in the vicinity of 10a. The long hole 10e is located along one side edge 20a of the body plate 10 and is located at one end of the body plate 10.
From the position near 10c, about 2/3 of the length of the main body plate 10 is drilled. Further, at a position near the other end 10d of the main body plate 10, one side edge 10a thereof is cut out in a substantially rectangular shape to form a work payout portion 12. A conveyor (not shown), for example, is installed below the work payout unit 12.

Further, on the upper surface of the main body plate 10, side supports 14, 15
Is attached. The side support 14 has one side edge 10
It is attached between a and the elongated hole 10e from a position near the one end 10c to a position near the work discharging part 12. Also,
The side support 15 is attached to the main body plate 10 substantially in the center in the width direction and in parallel with the side support 14.

Further, limit switches 53 and 54 are attached to one side edge 10a of the main body plate 10 via a bracket 52. The limit switch 53 is turned on when the carry-in plate 17 described later moves to the first position, and the limit switch 54 is turned on when the carry-in plate 17 moves to the second position.

The extension plate 11 has a substantially rectangular shape, and is formed so as to extend from the other end 10d of the main body plate 10 toward the work processing device 2. Extension plate
A large-diameter hole 11c is formed in the approximate center of 11. Also,
At one side edge 11a of the extension plate 11, a guide rail 13 is arranged toward the work payout portion 12. The work processing device 2 approaches the extension plate 11 from both upper and lower directions (FIG. 2).

The base plate 6 has a stepped portion 6a extending from the main body plate 10 to the extension plate 11. The step portion 6a is formed substantially parallel to the guide rail 13 and on the opposite side of the guide rail 13 with the large diameter hole 11c and the work payout portion 12 interposed therebetween, and the extension plate 11 side of the base plate 6 is a main body. It is lower than the plate 10 side. Therefore, as will be described later, when the work 3 slides on the base plate 6 in this length direction, when the work 3 slides from the main body plate 10 side to the extension plate 11 side, the work 3 has a step portion. 6a can be dropped and pass through here, but when the work 3 slides from the extension plate 11 side to the main body plate side 10 side, the work 3 cannot pass over the step 6a and passes through here. However, the work is not guided, and is guided to the work discharging unit 12 along the step 6a.

The work transfer section 7 is composed of an inclined table 16, a carry-in plate 17, a hook-shaped grip section 18, an air cylinder 19, and the like. The carry-in plate 17 is a thick plate material having a substantially rectangular shape, is disposed on the main body plate 10, and is slidable along the side supports 14 and 15. At one end 17a of the carry-in plate 17, a bracket 51 for holding a drop pin 29 described later is fixed.

The inclined table 16 is formed in a substantially rectangular shape in a top view, and an upper surface thereof has an inclined surface 16d that lowers the other end 16c of the horizontal portion 16a formed on one end side. This ramp 16
Is screwed and fixed to a substantially central portion of the upper surface of the carry-in plate 17.

The hook-shaped grip portion 18 is formed in a shape in which a tip end 18b is bent and extends from a base end 18a and can be locked at a predetermined position on the outer peripheral portion of the work 3. Specifically, the tip 18b of the hook-shaped grip 18 is
Facing away from the work discharging part 12, and carrying plate
A predetermined angle horizontally with respect to the reciprocating direction of 17, for example,
The work 3 is bent along the outer periphery of the work 3 within a range in which it is rotated by 15 degrees so as to be substantially parallel to the step 6a. The base end 18a of the hook-shaped grip portion 18 is fitted into the other end 17b of the carry-in plate 17 and is detachably screwed and fixed. The hook-shaped grip 18
It is set to extend to the extension plate 11 when the carry-in plate 17 is located at the first position.

The hook-shaped grip portion 18 locks the work 3 dropped from a work guide 27, which will be described later, on the outer peripheral portion on the side opposite to the work discharge portion 12, and moves the work plate 3 on the base plate 6 as the carry-in plate 17 reciprocates. Slide it. As described above, the hooked portion of the hook-shaped grip portion 18 with respect to the work 3 is horizontally displaced by a predetermined angle with respect to the reciprocating direction of the carry-in plate 17. Therefore, the hook-shaped grip portion 18 can slide the work 3 from the main body plate 10 side toward the extension plate 11 side when the carry-in plate 17 returns, and the carry-in plate 17 moves forward. In the case of carrying out, the work 3 guided by the stepped portion 6a is removed and carried out to the work discharging unit 12.

The air cylinder 19 is, for example, a double-acting rodless cylinder, and is composed of a rail 20, a piston 21, etc.
It is attached to the bottom of 10. Specifically, the air cylinder 19 is arranged along the elongated hole 10e formed in the main body plate 10, and both ends of the rail 20 are arranged in the vicinity of the one end 10c of the main body plate 10 and in the vicinity of the work discharging part 12. , Are fixed to the bottom surface of the main body plate 10 via brackets 23, respectively. The piston 21 is connected to the carry-in plate 17 by a connecting member (not shown). This connecting member, the long hole of the body plate 10
The piston 21 and the carry-in plate 17 are connected via 10e.

The air cylinder 19 includes a tilt table 16, a carry-in plate 17, and a hook-shaped grip portion 18 (hereinafter, simply referred to as the tilt table 16) as its first part.
And reciprocally move to the second position. That is, when the air cylinder 19 moves the tilting table 16 and the like to the first position (the position shown in FIGS. 1 to 3), the bracket 51 fixed to the carry-in plate 17 turns on the limit switch 53, The tilt table 16 and the like stop at the first position. In this position, the horizontal part 16a of the tilting table 16 is located directly below the work guide 27, and the hook-shaped grip 1
8 are located right above the extending plate 11.

Further, when the air cylinder 19 moves forward to move the tilting table 16 or the like from the first position to the second position, the bracket 51 turns on the limit switch 54 and the tilting table 16 or the like stops at the second position. To do. In this position, the horizontal portion 16a of the tilt table 16 is located near one end 10c of the main body plate 10, and the hook-shaped grip portion 18 is located directly below the work guide 27.

The work storage unit 8 is composed of a table 26, a work guide 27, a holding claw 28, a dropping pin 29, a positioning means 30, and the like. As shown in FIG. 4, the table 26 is rotatably attached to a support shaft 32 via a bearing mechanism 31. The table 26 is composed of an upper disc 34, a lower disc 35, and the like. The discs 34 and 35 are arranged so as to sandwich a flange 37a formed on the outer peripheral surface of the bearing case 37 of the bearing mechanism 31 from above and below, and are fastened to each other by a plurality of bolts (not shown), so that the flange 37a The bearing case 37 is fixed so as not to rotate relative to the bearing case 37 with a gap corresponding to the thickness.

Work insertion holes 34a, 35a are formed in each of the circular plates 34, 35 at five positions at equal intervals along the circumferential direction. Also, each disc
Extending pieces 34b (only the extending piece of the upper circular plate is shown in FIG. 1) are integrally formed on the outer peripheral edges of 34 and 35, corresponding to the work insertion holes 34a and 35a, respectively. A stopper pin 40 is bridged between the extension plate 34b of the upper disc 34 and the extension piece of the lower disc 35.

The positioning means 30 is composed of a positioning plate 56 attached to the table 26, a lever 57 attached to the base plate 6, and the like. The positioning plate 56 is
Workpiece insertion hole 34 formed in each disk 34, 35 of the table 26
Five sheets are provided corresponding to a and 35a. Each positioning plate 56 extends along the outer peripheral edge of each of the disks 34, 35 and each extension piece 34b.
And 34b are mounted in the center of the discs 34 and 35 between the discs 34 and 35. A notch 56a is formed in each positioning plate 56. In addition, each positioning plate 56 has a pin
58 are erected. One end of a coil spring 50 that closes the holding claw 28 is locked to the pin 58.

The lever 57 is rotatably attached to a position near the other side edge 10b of the main body plate 10 via a bracket 59. This lever 57 is provided with a notch 56 in the positioning plate 56.
The table 26 is inserted into and locked therein and the table 26 is positioned at the position shown in FIG.

The work guide 27 includes an inner cylinder 42 and an outer cylinder 43. The inner diameter of the inner cylinder 42 is set to be substantially the same as the outer diameter of the work 3. The inner cylinder 42 includes an upper disc 34 and a lower disc 35.
Elongated notches 42c, 42c are formed at positions corresponding to and. The notches 42c are formed on both sides of the inner cylinder 42, that is, at positions corresponding to the plate-like claws 45 and 46 described later. A predetermined number of works 3 are stacked and stored in the inner cylinder 42, and the works 3 are taken out one by one in order from the bottom by utilizing gravity.

The outer cylinder 43 is composed of a main body portion 43a and a flange portion 43b,
These are integrally formed. The main body portion 43a has a tubular shape, and is fitted to the lower end portion of the inner cylinder 42 and fixed by, for example, interference fitting. Further, the outer diameter of the main body portion 43a is the work insertion holes 34a, 35a formed in the respective disks 34, 35.
The size is set to be approximately the same as the diameter of. Notches 43c and 43c are formed in the body portion 43a. Each notch 43c is formed corresponding to each notch 42c of the inner cylinder 42.
The flange portion 43b is formed near the upper end of the main body portion 43a, and has a diameter slightly larger than the diameter of the work insertion hole 34a of the upper disc 34.

One work guide 27 is fitted into each work insertion hole 34a, 35a formed in each disk 34, 35. That is, the flange portion 43b of the outer cylinder 43 is inserted from above the upper disc 34 until it comes into contact with the upper surface of the disc 34. As a result, the lower end of each work guide 27 is attached to the horizontal portion 16a of the tilt table 16.
It is located a short distance above the height of, eg 2 mm above. The work 3 is stacked and stored in each work guide 27 according to the type.

The holding claw 28 as a locking means prevents the work 3 from falling inside the work guide 27, and is provided for each work guide 27. As shown in FIG. 6, the holding claw 28 is composed of a pair of plate-like claws 45, 46 and the like.

Each of the plate-like claws 45, 46 is a plate member formed to be elongated from the base ends 45a, 46a toward the tips 45b, 46b, and extending portions 45c, 46c are formed at respective central portions. Each plate-shaped claw 45, 46 is
It is arranged between the upper disc 34 and the lower disc 35, and each extension 45
The c and 46c are rotatably attached to the discs 34 and 35 via the support shafts 47 and 47 while abutting each other.

Pins 4 are attached to the base ends 45a and 46a of the plate-like claws 45 and 46, respectively.
8 and 48 are erected. The other end of the coil spring 50 is attached to each pin 48. Each coil spring 50 pulls the base ends 45a, 46a of the plate-like claws 45, 46 in a direction away from each other, and the extension 46c contacts the extension 45c, and the extension 45c contacts the stopper pin 40, respectively. Until the tips 45b, 46b are rotated toward each other,
As shown by the chain double-dashed line in FIG. 6, the holding claw 28 is closed.

When the holding claw 28 is closed by the coil spring 50, the tips 45b and 46b of the plate-like claws 45 and 46 are attached to the work guide 27.
Through the notches 42c and 43c formed in the inner cylinder 42 and the outer cylinder 43, the next work 3 dropped on the tilt table 16 among the works 3 accommodated in the work guide 27 is clamped.

The drop pin 29 as a drop means is attached to the bracket 51 attached to the one end 17a of the carry-in plate 17 with its tip facing the base end 45a of the plate-like claw 45 of the holding claw 28. When the carry-in plate 17 moves forward to the first position, the dropping pin 29 presses the base end 45a of the plate-like pawl 45 and resists the elastic force of the coil spring 50, causing the plate-like pawl 45 to tip. 45b
Rotate in a direction away from the work guide 27. The rotation of the plate-shaped pawl 45 is transmitted to the plate-shaped pawl 46 via the extending portions 45c and 46c, and the tip 46b of the plate-shaped pawl 46 is moved to the work guide 2 by the work guide 2.
Rotate in a direction away from 7. Therefore, the drop pin 29
When the plate-shaped pawl 45 is pressed, the holding pawl 28 opens as shown by the solid line in FIG.

 The operation will be described below.

First, the table 26 is rotated to move the work guide 27 containing the desired work 3 to the position shown in FIG. 1, and the positioning means 30 positions and fixes the work guide 27.

When the air cylinder 19 moves the tilting table 16 and the like to the first position, the drop pin 29 attached to the carry-in plate 17
Presses the base end 45a of the plate-like claw 45 of the sandwiching claw 28. The plate-like pawl 45 whose base end 45a is pressed rotates against the elastic force of the coil spring 50, and the plate-like pawl 46 also moves along with this.
Since it rotates against the elastic force of 50, the holding claw 28 opens, the works 3 stacked and stored in the work guide 27 are dropped, and the bottommost work 3 is tilted from inside the work guide 27. Drop on the horizontal part 16a of the table 16.

The lower end of the work guide 27 is, for example, 2 mm from the horizontal portion 16a.
Since the work 3 dropped on the horizontal portion 16a is exposed only above, only the lower part of the work 3 is exposed from the work guide 27, and the upper part is stored in the work guide 27.

In this state, when the air cylinder 19 moves the tilting table 16 or the like forward, the drop pin 29 separates from the holding claw 28, and the holding claw 28 moves.
Is closed by the elastic force of the coil spring 50, and the horizontal portion 16a
The work 3 on top of the work 3 that has fallen on the top of the work 3 is clamped to prevent the work 3 from falling.

On the other hand, since the work 3 dropped on the horizontal portion 16a is stored in the work guide 27 at its upper portion, the tilt table 16
The work guide 27 holds the relative position in the horizontal direction with respect to the base plate 6 regardless of such forward movement. Therefore, when the tilting table 16 or the like moves forward, the work 3 is
As shown by the chain double-dashed line in the figure, it gradually falls along the inclined surface 16d as the inclined table 16 moves. Since the work 3 falls gradually, it is prevented from falling.

When the inclining table 16 and the like move forward to the second position, the work 3 on the inclining table 16 moves, as shown by the solid line in FIG.
Then, the work 3 is completely taken out from the work guide 27. At the same time, the limit switch 54 is turned on, the forward movement of the air cylinder 19 is stopped, and the backward movement is started.

When the air cylinder 19 is returned, the work 3 is hooked 18
The base plate 6 is slid on the base plate 6 from the main body plate 10 toward the extension plate 11 while being locked. The work 3 drops through a step 6a formed on the base plate 6 and passes therethrough.
As a result, the work 3 is carried into the work processing device 2.

When the tilt table 16 and the like return to the first position, the limit switch 53 is turned on and the return of the air cylinder 19 is stopped. In the first position, as described above, the drop pin
29 opens the holding claw 28, and the next work 3 is dropped from inside the work guide 27 onto the inclined table 16.

Further, in the first position, the hook-shaped grip portion 18 is positioned on the extension plate 11, and the work 3 remains locked to the hook-shaped grip portion 18 and the large-diameter hole of the extension plate 11 is held. Face 11c. Then, the work processing device 2 extends toward the work 3 from both upper and lower directions, and processes the teeth on the work 3.

When the processing on the work 3 is completed, the work processing apparatus 2 is separated from the work 3, and the tilting table 16 and the like start to move forward. As a result, the processed work 3 slides on the base plate 6 from the extension plate 11 toward the main body plate 10 while being retained by the hook-shaped grip 18. However, when the machined work 3 slides on the base plate 6, the machined work 3 cannot get over the step 6a. Hook-shaped grip 18
Means to lock only the outer peripheral portion of the work 3 on the side opposite to the work payout portion 12, and the locking range is the loading plate 17
Since the work 3 is rotated by a predetermined angle in the horizontal direction with respect to the reciprocating direction, the work 3 is disengaged from the hook-shaped grip 18 along the step 6a with the forward movement of the tilt table 16 and the like. It is delivered to the payout unit 12.

Further, the next work 3 drops from the work guide 27 to the horizontal portion 16a of the tilt base 16 by the forward movement to the tilt base 16 and the like, and the next work 3 is locked by the hook-shaped grip portion 18 to be a work processing device. It is carried in to 2.

(Advantages of the Invention) As described above, according to the present invention, since the work supply device is configured as described above, the number of constituent parts of the work supply device can be reduced, and the manufacturing cost can be reduced. There is an excellent effect.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a work supply device to which the present invention is applied, FIG. 2 is a partially cutaway front view of FIG. 1, and FIG. 3 is a base plate and a work transfer section of FIG. FIG. 4 is a plan view, FIG. 4 is a cross-sectional view showing the mounting portion of the table of FIG. 1, FIG. 5 is a side view showing the positioning means of FIG. 1, and FIG.
FIG. 7 is a plan view showing the holding claw of FIG. 1, and FIG. 7 is a sectional view showing a state where the work is dropped from the work guide of FIG. 1 ... Work supply device, 2 ... Work processing device, 3 ...
Work, 6 ... Base plate, 6a ... Step section, 7 ... Work transfer section, 8 ... Work storage section, 12 ... Work ejection section, 16 ... Inclined table, 18 ... Hook-like grip section, 19 ... … Air cylinder, 26 …… Table, 27 …… Work guide, 28 …… Clamping claw, 29 …… Drop pin, 30 …… Positioning means, 31 …… Bearing mechanism, 32 …… Spindle, 50 …… Coil spring.

Claims (1)

[Scope of utility model registration request] 1. A work transporting device for transporting a work to a work processing device, and a work transporting part for unloading a work from the work processing device and one stacked work along a work guide are dropped one by one from the bottom to the work transporting part. In the work supply device including a work storage unit, the work transfer unit has an inclined surface that lowers the other end as compared with one end, and locks the work at the other end to slide on the base plate. A stopper is formed and reciprocates on the base plate so that one end is located below the work guide at the first position, the locking part is located at the work machining device, and the locking part is at the second position. Is located below the work guide, an actuator for reciprocating the carrying member between a first position and a second position, and a base plate formed on the base plate. The work processing device side of the table is made lower than the work storage portion side, and the work that slides on the base plate is locked when the transport member moves from the first position to the second position. And a stepped portion that is guided to a work payout portion that is provided on the side of the base plate after being removed from the work piece storage portion, and the work storage portion is disposed near the lower end of the work guide and has an elastic force of an elastic member. By means of a work locking means for preventing the work stacked in the work guide from falling, and the work locking means provided in the carrying member and arranged when the carrying member is located at the first position. And a work dropping unit that presses and releases the work in the work guide by unlocking the work by the work locking unit against the elastic force of the elastic member, and the work guide has the lower end as the conveyance member. Between When the conveying member is arranged with a slight gap and moves forward from the first position to the second position, the horizontal direction with respect to the base plate of the workpiece dropped on the conveying member from the work guide is detected. A work supply device, which holds a relative position and gradually drops along a slanted surface of a conveying member to be locked to the locking portion.