JPH09234633A - Part item cleaning and shaking-in device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously perform cleaning and shaking-aligning of part items so as to shorten a part item machining period and reduce costs by placing a housing box with a pallet having a number of part item housing holes in its upper surface into a cleaning tank for reserving cleaning liquid and swinging the housing box. SOLUTION: For aligning and supplying cleaned part items to an automatic assembling machine, first a pallet 1 is loaded on a stage 2 in a swinging cleaning tank 10 for reserving cleaning liquid L and after part items W are placed on the pallet 1 up to a certain level, a swing driving motor is rotated so as to swing a vertical rocking base 6 and the swinging cleaning tank 10 is inclined, for instance leftward. After the vertical rocking base 6 reaches a rocking end, the swinging cleaning tank 10 is inclined right this time. By repeating this operation at the rate of 10 to 15 times/min., the part items W are gradually housed in the part item housing holes 1a of the pallet 1 and the soil of the surface is eliminated. Then, the pallet 1 is removed from the stage 2 and after drying, the pallet 1 is supplied to the automatic assembling machine.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parts transfer device for aligning and supplying parts to an automatic assembly machine or the like, and more particularly to a parts cleaning transfer device which also has a part cleaning function.

[0002]

2. Description of the Related Art When automatically assembling parts, one of means for supplying parts to an automatic assembling machine is an aligning and supplying system using a pallet having a large number of parts accommodating holes on its upper surface. This method has an advantage that it is possible to deal with various parts by changing the pallet and the chuck part of the automatic assembling machine, so that setup is easy and various kinds of small quantity production can be coped with.
However, it is costly to manually arrange the parts on the pallet, so in order to avoid this, it is attempted to automate this work. For example, as a vibration transfer machine,
The technology described in Japanese Patent Laid-Open No. 19047 is disclosed.

In this technique, a table is mounted with a pallet having a large number of recesses on the upper surface into which a work piece having a particular posture is fitted, a means for imparting lateral vibration and vertical vibration to the table, and mounting of the pallet. A vibratory transfer machine having a processed product accumulating portion provided at an end of the table, which is not provided with an air outlet for blowing air to the processed product at a processed product passing portion in the processed product accumulating portion. A switch for connecting and disconnecting the air blown out from the air blowout port is provided, and the operation of the switch is interlocked with the swing of the table.

[0004]

However, the above-mentioned prior art is intended only to automate the transfer of parts to the pallet, and it is premised that the parts to be put in are clean. However, the processed parts have various stains such as cutting oil on the machined parts such as a lathe and a release agent on the molded parts. Therefore, it is necessary to wash the components to be put in advance with a washing machine or the like, resulting in a problem that the component processing schedule is prolonged and the human cost is increased.

The present invention has been made in view of the above problems of the prior art, and an object of the invention according to claim 1, 2 or 3 is to carry out cleaning and transfer alignment of parts at the same time, and shorten the part processing schedule. It is an object of the present invention to provide a parts cleaning transfer device that can be completed and can reduce the human cost.

[0006]

In order to solve the above-mentioned problems, the invention according to claim 1, 2 or 3 provides a parts storage hole for storing parts in a specific posture in a parts washing transfer device. A plurality of pallets provided on the upper surface, a storage box for mounting the pallet to prevent the components from falling down, a cleaning tank containing the storage box and storing a cleaning liquid, and a means for rocking the storage box, It is characterized in that the parts put on the pallet are configured to rock in the cleaning liquid.

In the operation of the invention according to claim 1, 2 or 3, a pallet having a large number of component storage holes for storing components in a specific posture is provided on the upper surface, and the pallet is mounted to prevent the components from falling down. The storage box, the cleaning tank containing the storage box for storing the cleaning liquid, and the means for rocking the storage box are provided, and the parts put on the pallet are rocked in the cleaning liquid. , Parts roll in the direction of the swing motion of the pallet, and when this motion is repeated, the parts are stored in the part storage holes and are attached to the parts by the vibration generated when the parts roll. The dirt that had been removed is removed. In the operation of the invention according to claim 2, in addition to the above-mentioned operation, the means for swinging the storage box is configured to swing the cleaning tank by integrating the storage box and the cleaning tank through a vibration isolating member. As a result, the cleaning liquid in the cleaning tank swings together with the pallet, which promotes the rolling of parts and amplifies the cleaning effect. In the operation of the invention according to claim 3, in addition to the above operation,
The means for swinging the storage box is to fix the cleaning tank and
Since the accommodation box is configured to oscillate with the rotation shaft provided in the cleaning tank as a fulcrum, the structure of the means for oscillating the accommodation box can be simplified.

[0008]

1 to 7 show Embodiment 1 of the present invention, and FIG. 1 is an overall configuration diagram of a parts cleaning transfer apparatus, FIG.
Is a front view of the parts cleaning transfer device, FIG. 3 is a front sectional view of the parts cleaning transfer device with the cleaning tank being swung, FIG. 4 is a top view of the parts cleaning transfer device in the state of FIG. 3, and FIG. 5 is a pallet. Is a top view, FIG. 6 is a sectional view taken along line XX of FIG. 5, and FIG. 7 is a perspective view of the component storage hole of the pallet.

In FIG. 1 and FIG. 2, the component cleaning transfer device includes a base 50, a cleaning tank rocking mechanism 51 provided on the base 50, and a cleaning tank 5 rocked by the cleaning tank rocking mechanism 51.
2 and a cleaning liquid circulation mechanism 53 connected to the cleaning tank 52 and arranged on the base 50.

First, the cleaning tank 52 will be described. FIG.
In FIG. 4 and FIG. 4, the pallet 1 has a large number of component storage holes 1a (30 to 50) for accommodating pins with collars (hereinafter referred to as components W) on its upper surface and is detachably mounted on the stage 2. Has been done. Stage 2 is cleaning liquid L
(Hydrocarbon-based cleaning liquid: EE-7110, manufactured by Olympus Optical Co., Ltd.) is fixed to the bottom surface of the box-shaped rocking cleaning tank 10 in order to prevent the component W from dropping to zero.
The wall 2a is erected on the entire circumference. Further, in order to help prevent the component W from falling down, a cover 3 having an opening 3a necessary for replacing the pallet 1 in the center is fixed to the wall 2a. The stage 2 and the cover 3 form a housing box for the component W. Around the outer periphery of the upper part of the rocking cleaning tank 10, a liquid receiver 11 for receiving the cleaning liquid L overflowing from the upper edge portion 10a is provided around the cleaning tank 52 as a whole. When the liquid receiver 11 is rocked, cylindrical openings 11a and 11b are vertically provided at the lowermost portions of both rocking ends. The openings 11a and 11b are connected to a cleaning liquid circulation mechanism 53 described later.

A lateral vibration base 4 is fixed to the lower surface of the swing cleaning tank 10 by welding or the like. Lateral vibration base 4
Is fixed to the vertical swing base 6 via an elastic anti-vibration rubber 5. As shown in FIG. 1, a bracket 8 is erected on the protruding portion 6 a of the vertical swing base 6, and a solenoid 7 is fixed to the bracket 8. An electromagnetic coil (not shown) is wound around the solenoid 7, and by applying a voltage intermittently, an electromagnetic force is applied to the drive pin 7a, and the drive pin 7a operates back and forth to move the lateral vibration base 4
And the lateral vibration is transmitted to the swing cleaning tank 10.
A plurality of brackets 9 are vertically provided on the lower surface of the vertical swing base 6 and fixed to the swing shaft 12 of the cleaning tank swing mechanism 51.

1 and 2, the cleaning tank rocking mechanism 5 is shown.
1 will be described. The swing shaft 12 is rotatably supported by a plurality of bearings 13 provided upright on the base 50.
A worm gear 14 for driving the swing shaft 12 is provided at one end.
Is fixed. The worm gear 14 is the worm 13.
And the swing shaft 12 is rotated by the rotational force from the worm 13. The worm 13 is fixed to the rotary shaft 16, and the rotary shaft 16 is rotatably supported by a plurality of bearings 17 provided upright on the base 50. One end of the rotary shaft 16 has a rotary shaft 20 of a swing drive motor 19 attached to a stay 21 standing on a base 50 via a shaft joint 18.
It is connected to.

1 and 2, the cleaning liquid circulation mechanism 5
3 will be described. Openings 11a, 11 of the cleaning tank 52
b is connected to a connection port 22a provided at an upper portion of the tank 22 that stores the cleaning liquid L by a flexible pipe material, for example, a pipe P made of a rubber hose or the like. The tank 22 is lower than the cleaning liquid level of the rocking cleaning tank 10 and is fixedly mounted on the base 50 via the legs 22c, and the connection port 22b provided at the bottom thereof.
Is connected to the pump 23 and the filter 24 by a hard pipe material, for example, a pipe S made of steel pipe, and further connected by a flexible pipe P to a connection port 10b projecting on the side surface of the rocking cleaning tank 10. There is. The cleaning liquid L is sucked from the tank 22 by the pump 23, passes through the filter 24, is filtered, and becomes a clean cleaning liquid and is supplied to the rocking cleaning tank 10. In addition, the contaminated cleaning liquid L is discharged into the openings 11a, 11
It is guided by the pipe P from b and is returned to the tank 22 which is lower than the cleaning liquid level.

The pallet 1 will be described in detail with reference to FIGS. The component storage hole 1a of the pallet 1 is formed to be slightly larger than the outer diameter of the component W to be stored, and a through hole 1b smaller than the outer diameter of the component W is formed in the center. Further, the surface 1d that receives the component W stored in the component storage hole 1a has a plurality of grooves 1c inclined toward the through hole 1b.
And the cleaning liquid L that has entered the component storage hole 1a is through hole 1b.
I tried to get out.

The work of aligning the parts W on the pallet 1 by means of the above-described parts cleaning transfer device will be described. First, the pallet 1 is mounted on the stage 2 in the rocking cleaning tank 10 to which the cleaning liquid L has already been supplied. Next, from the opening 3a of the cover 3, attach the component W on which dirt such as dust is attached,
Put an appropriate amount on the pallet 1. When the swing drive motor 19 is rotated, the rotation speed is reduced by the worm 15 and the worm gear 14, the vertical swing base 6 starts swinging, and the swing cleaning tank 10 is tilted to the left (see FIG. 3). . The part W put on the pallet 1 rolls on the pallet 1 in the cleaning liquid L, and a part thereof enters the part storage hole 1 a of the pallet 1,
The remaining parts W are collected on the left side of the stage 2.

When it is detected by a limit switch (not shown) that the vertical swing base 6 has reached the swing end, the swing drive motor 19 is stopped and the rotary shaft 20 is rotated in the reverse direction. The swing of the vertical swing base 6 is reversed, and the swing cleaning tank 10 is tilted to the right. The parts W collected on the left side of the stage 2 roll on the pallet 1 again, a part of them enters the part storage hole 1a of the pallet 1, and the remaining parts W are collected on the right side of the stage 2. This vertical swing operation is repeated at a rate of 10 to 15 times / minute. While this vertical swing operation is repeated, the component W is gradually stored in the component storage hole 1a of the pallet 1. Further, when the cleaning liquid L rolls on the pallet 1, the dirt attached to the component W is removed by the vibration force generated in the component W.

In addition to performing the above-described vertical swing motion,
A voltage is intermittently applied to the solenoid 7 to drive the drive pin 7a.
When the horizontal vibration is applied to the pallet 1 and the component W, the component W stored in the component storage hole 1a of the pallet 1 in an incomplete posture is It is completely stored in the storage hole 1a. Also,
The lateral vibration force is applied to the component W stored in the component storage hole 1a, so that the dirt that cannot be completely removed by the vertical swing operation is removed. This lateral vibration operation is 100 to 15
It operates at a rate of 0 times / minute. Further, when the above-described vertical oscillation and horizontal oscillation operations are performed, the cleaning liquid in the oscillation cleaning tank 10 swells and is sold, and acts as a physical force for removing the dirt attached to the component W.

Also, during the above-described vertical swing, the swing cleaning tank 1
A part of the cleaning liquid L overflows from the upper edge portion 10a of 0, flows into the liquid receiver 11, passes through the pipe P from the openings 11a and 11b, and flows back to the tank 22. The cleaning liquid L in the tank 22 is sucked by the pump 23, filtered by the filter 24, and then pressure-fed to the rocking cleaning tank 10 from the connection port 10B, so that the cleaning liquid L is constantly maintained in a clean state. The above vertical swing and horizontal vibration operations are repeated for about 3 to 5 minutes to store the component W in the component insertion hole 1a of the pallet 1 and then the pallet 1
Is removed from the stage 2 and put in the next step, for example, a warm air dryer. Therefore, the parts W and the pallet 1 are 60
It is dried in about 5 minutes with warm air of -80 degrees, and is then put into the next step, for example, an automatic assembly machine, and the part W is automatically assembled by a robot.

Now, the operation of the pallet 1 will be described. As described above, the pallet 1 in which the cleaned parts W set in the stage 2 of the parts cleaning transfer device are transferred and aligned.
Is pulled up from the cleaning tank 52 in an inclined state, and the cleaning liquid L on the pallet 1 is drained here. Further, the cleaning liquid L staying in the component storage hole 1a of the pallet 1 passes through the plurality of grooves 1c, passes through the through hole 1b, and is drained.

According to the first embodiment of the present invention, the horizontal vibration is applied and the parts are transferred to the pallet while performing the vertical rocking motion. Parts can be transferred and aligned, the parts processing schedule can be shortened, and the human cost can be reduced.

In the first embodiment of the present invention, the parts are cleaned and the transfer is aligned while applying the lateral vibration.
When the degree of contamination of the component is light, it is not always necessary to apply the lateral vibration, and only the vertical swing operation may be performed. Also,
Although the oscillating mechanism is decelerated by using the worm and the worm gear, another decelerating mechanism may be used.

[0022]

Embodiment 2 of the Invention FIGS. 8 to 9 show Embodiment 2 of the invention, and FIG. 8 is a front sectional view of a parts cleaning transfer device, and FIG.
FIG. 4 is a top view of the component cleaning transfer device. In the second embodiment of the present invention, the same pallet as that used in the first embodiment of the invention is used, and therefore the pallet is not shown in the figure and description.

In FIGS. 8 and 9, the pallet 1 is
It is detachably attached to the swing table 26. The rocking table 26 has a wall 26a standing upright around the entire circumference of the rocking table 26 in order to prevent the dropped component W from falling down. Further, in order to help prevent the component W from falling down, a cover 3 having an opening 3a necessary for replacing the pallet 1 in the center is fixed to the wall 26a. The swing table 26 and the cover 3 form a housing box for the component W. The rocking table 26 is fixed to the rocking shaft 33 by a plurality of brackets 32 vertically provided at the center of the lower surface of the rocking table 26. Both ends of the rocking shaft 33 are fixed cleaning tanks 25 fixed on the base 60. A bearing 34 fixed to the inner wall rotatably supports the bearing. A hinge pin 27 is press-fitted into a bracket 26b protruding from one end of the swing table 26.

On the other hand, a bracket 30 is erected on the upper portion of the outer wall of the fixed cleaning tank 25, and a hinge pin 31 rotatably supports a hinge 29b of a cylinder 29.
The cylinder 29 has a hinge 28 at the tip of its rod 29a.
Is fixed and is rotatably supported by a hinge pin 27 which is press-fitted into the swing table 26. The rocking table 26 rocks around the rocking shaft 33 as a fulcrum by the back and forth movement of the rod 29a of the cylinder 29.

The cleaning liquid L is stored in the fixed cleaning tank 25, and the opening 25a is provided in the side wall 25c of the fixed cleaning tank 25.
Is connected via a pump 23 and a filter 24 to a connection port 25b provided on a side wall 25d of the opposing fixed cleaning tank 25 by piping. The pump 23 sucks the cleaning liquid L through the opening 25a, filters it with the filter 24, and causes the cleaned cleaning liquid L to flow back into the cleaning tank 25 through the connection port 25b.

A description will be given of the work of cleaning and aligning the parts W on the pallet 1 by using the parts cleaning and transfer device having the above structure. First, the pallet 1 is mounted on the rocking table 26 in the fixed cleaning tank 25 to which the cleaning liquid L has already been supplied. Next, an appropriate amount of the component W on which dirt such as dust is attached is put on the pallet 1 through the opening 3 a of the cover 3. When the cylinder 29 is driven, the rod 29a moves forward, the swing table 26 starts swinging, and tilts to the right. The part W put on the pallet 1 rolls on the pallet 1 in the cleaning liquid L, a part thereof enters the part storage hole 1 a of the pallet 1, and the remaining parts W are collected on the right side of the swing table 26. .

When it is detected that the rod 29a of the cylinder 29 reaches the forward end by a limit switch (not shown), the rod 29a is moved backward. The swing table 26 reverses swing and tilts to the left. Swing table 2
The parts W gathered on the right side of 6 roll on the pallet 1 again, a part thereof enters the part insertion hole 1 a of the pallet 1, and the remaining parts W gather on the left side of the swing table 26. While this vertical swing operation is repeated, the component W is gradually stored in the component storage hole 1a of the pallet 1. Also, the cleaning liquid L
The dirt attached to the component W is removed by the vibration force generated in the component W when rolling on the inside pallet 1. In addition, when the above-described vertical swing operation is performed, the fixed cleaning tank 25
The cleaning liquid L therein is agitated and agitated, and acts as a physical force for removing the dirt adhering to the component W.

The cleaning liquid L in the fixed cleaning tank 25 is supplied to the opening 2
After being sucked by the pump 23 from 5a and filtered by the filter 24, it is pressure-fed to the fixed cleaning tank 25 through the connection port 25b, and constantly maintained in a clean state. The above-described vertical swing operation is repeated for about 3 to 5 minutes to store the component W in the component insertion hole 1a of the pallet 1 and then the pallet 1 is removed from the swing table and placed in the next step, for example, a warm air dryer. To do.
Therefore, the part W and the pallet 1 are dried with hot air of 60 to 80 degrees in about 5 minutes, and further put into the next step, for example, an automatic assembly machine, and the part W is automatically assembled by a robot.

According to the second embodiment of the present invention, the parts are transferred to the pallet while performing the vertical swing motion in the cleaning liquid, so that the parts are transferred and aligned at the same time as the cleaning of the parts. Therefore, the parts processing schedule is short, and the human cost can be reduced. Further, since only the rocking table is rocked, the rocking means is relatively small, the entire apparatus is small, and the equipment investment is small.

In the second embodiment of the present invention, the rocking motion of the rocking table is performed by the linear cylinder. However, instead of this, a mechanism in which the rocking shaft is directly rocked by a rotary cylinder or a motor is used. Good.

In the present invention, the following claims can be made. (1) In the pallet, a through hole smaller than the outer diameter of the component is provided in the component storage hole, and a plurality of grooves reaching the through hole are provided on the component receiving surface of the component storage hole. The parts cleaning transfer device according to claim 1.
According to this aspect, when the pallet is taken out from the cleaning tank, the cleaning liquid staying in the component storage hole passes through the plurality of grooves and flows into the through hole, so that the cleaning liquid can be drained well.

[0032]

According to the first, second or third aspect of the present invention, the component rolls in the direction of the swing motion of the pallet along with the swing motion of the pallet, and when this motion is repeated, the component is stored in the component storage hole. The vibration that occurs when the parts roll causes the dirt that had adhered to the parts to be removed, so cleaning and transfer alignment of the parts can be performed at the same time, and the parts processing schedule can be shortened, which saves personnel costs. Can be cheap. Claim 2
According to the invention of claim 1, in addition to the above effects, since the cleaning liquid in the cleaning tank swings together with the pallet, the rolling of the parts is promoted and the cleaning effect is amplified, so that efficient parts cleaning and transfer alignment are performed. Be seen. According to the invention of claim 3, in addition to the above effect, the structure of the means for swinging the stage is simplified, so that the parts cleaning transfer device can be made inexpensive.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a component cleaning transfer device according to a first embodiment of the invention.

FIG. 2 is a front view of the component cleaning transfer device according to the first embodiment of the invention.

FIG. 3 is a front sectional view of the component cleaning transfer device according to the first embodiment of the invention with the cleaning tank being swung.

FIG. 4 is a top view of the component cleaning transfer device in the state of FIG. 3 according to the first embodiment of the invention.

FIG. 5 is a top view of the pallet according to the first embodiment of the invention.

FIG. 6 is a sectional view taken along line XX of FIG. 5 according to the first exemplary embodiment of the invention.

FIG. 7 is a perspective view of component storage holes of the pallet according to the first embodiment of the invention.

FIG. 8 is a front cross-sectional view of the component cleaning transfer device according to the second embodiment of the invention.

FIG. 9 is a top view of the component cleaning transfer device according to the second embodiment of the invention.

[Explanation of symbols]

 1 Pallet 1a Parts Storage Hole 2 Stage 3 Cover 6 Vertical Vibration Base 9 Bracket 10 Swing Cleaning Tank 12 Swing Shaft 13 Bearing L L Cleaning Liquid W Parts

Claims (3)

[Claims] 1. A pallet having a large number of component storage holes on its upper surface for storing components in a specific posture, a storage box for mounting the pallet to prevent the components from falling down, and a cleaning liquid containing the storage box. And a means for oscillating the storage box, wherein the components placed on the pallet are oscillated in the cleaning liquid. 2. The means for swinging the storage box is configured such that the storage box and the cleaning tank are integrated via a vibration isolating member to swing the cleaning tank. Item washing transfer device according to item 1. 3. The means for swinging the storage box is configured to fix the cleaning tank and swing the storage box with a rotation shaft provided in the cleaning tank as a fulcrum. The parts transfer apparatus according to claim 1.