JP2019059592A - Parts feeder - Google Patents

Abstract

To provide a parts feeder capable of stably supplying oil-impregnated parts.SOLUTION: A parts feeder comprises a rotary table 4, a first drive part D1 that rotates the rotary table 4, a parts carrying-in part 5 that places a plurality of oil-impregnated parts 7 on the rotary table 4, and a parts carry-out part 8 that takes a prescribed number of oil-impregnated parts 7 out of the plurality of oil-impregnated parts 7 on the rotary table 4. The parts carry-out part 8 has a parts retention part that allows the oil-impregnated parts 7 to stay on the rotary table 4 and a parts carrying-out part that takes at one time a prescribed number of the oil-impregnated parts 7 staying on the parts retention part. The parts carrying-in part 5 has a cylindrical container 6 that accommodates the oil-impregnated parts 7 and is open in a lower face and a second drive part D2 that swings the container 6 over the rotary table 4. The container 6 has in a lower end a parts discharge port 6a allowing an oil-impregnated part 7 in a prescribed position to selectively pass through.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a component supply device.

  DESCRIPTION OF RELATED ART Conventionally, the parts feeder which separates and supplies oil-containing components, such as an oil-impregnated bearing, etc. one by one is known (for example, refer patent document 1).

JP-A-9-150936

  In the parts feeder described in Patent Document 1, in order to sort oil-impregnated bearings in which a plurality adheres or falls to the side immediately before the gate, if the ratio of bearings that can pass through the gate is low, the gate passes The number of oil-impregnated bearings may not be stable.

  An object of one aspect of the present invention is to provide a component feeding apparatus capable of stably feeding oil-impregnated components.

  According to one aspect of the present invention, there is provided a component supply device for supplying a predetermined number of oil-impregnated components to an external device, wherein the rotary table is rotatable about a central axis extending vertically and a first drive for rotating the rotary table. A part loading part for arranging a plurality of the oil-impregnated parts on the rotary table, and a part taking-out part for extracting a predetermined number of the oil-containing parts from the plurality of oil-impregnated parts on the rotary table; The takeout unit has a component retaining unit for retaining the oil-impregnated component on the rotary table, and a component unloading unit for delivering a predetermined number of the oil-impregnated components retained in the component retaining unit, and the component loading unit And a second drive unit for swinging the container on the rotary table, the container including the oil-impregnated component and opening in the lower surface, and the container has a lower end portion in front of a predetermined posture. Having a component discharge port for selectively passing the oil-containing component, the component supply device is provided.

  According to an aspect of the present invention, there is provided a component feeding device capable of stably feeding oil-impregnated components.

FIG. 1 is a perspective view showing the component supply device of the first embodiment. FIG. 2 is a plan view showing the component supply device of the first embodiment. FIG. 3 is a side view showing the component supply device of the first embodiment. FIG. 4 is a plan view showing the operation of the component loading unit 5. FIG. 5 is a cross-sectional view showing a container. FIG. 6 is a perspective view of the container. FIG. 7 is a perspective view showing a part taking out part. FIG. 8 is a perspective view showing a guide plate. FIG. 9 is a plan view showing the component supply device of the second embodiment. FIG. 10 is a diagram showing a component retention portion of the embodiment. FIG. 11 is an explanatory view of a modified example.

  Hereinafter, embodiments of the present invention will be described using the drawings.

First Embodiment
FIG. 1 is a perspective view showing the component supply device of the first embodiment. FIG. 2 is a plan view showing the component supply device of the first embodiment. FIG. 3 is a side view showing the component supply device of the first embodiment.

  The component supply apparatus 1 is an apparatus which arrange | positions the oil-impregnated bearing 7 which is an example of oil-impregnated components in the predetermined position in the state which orient | assigned the through-hole of the oil-impregnated bearing 7 up and down, and supplies it to an external device. The oil-impregnated bearing 7 is, for example, an annular part having a diameter of about 1.7 mm and a thickness of about 0.8 mm. The oil-impregnated bearing 7 is used as a bearing for a small motor. The oil-impregnated part is not limited to the oil-impregnated bearing, and may be a washer or the like.

  The component supply device 1 includes a base 2, a rotary table 4 rotatable about a vertically extending central axis, a first drive portion D1 for rotating the rotary table 4, and a plurality of oil-impregnated bearings 7 on the rotary table 4. A component loading unit 5 to be arranged, and a component removal unit 8 for removing a predetermined number of oil-impregnated bearings 7 from the plurality of oil-impregnated bearings 7 on the rotary table 4 are provided.

The base 2 has a bottom plate 2A, four columns 2B extending upward from four corners of the bottom plate 2A, and a top plate 2C whose four corners are supported by the columns 2B.
The rotary table 4 has a disk shape and is disposed on the top surface of the top 2C. The upper surface 4a of the rotary table 4 is a smooth surface to which the oil-impregnated bearing 7 is attached. The oil-impregnated bearing 7 is stuck to the upper surface 4 a by the contained oil and moves together with the rotary table 4.

  The first drive unit D1 has a motor 3. The motor 3 is located below the rotary table 4 and is fixed to the lower surface of the top 2C. The motor 3 is a motor having a shaft 3a extending in the vertical direction. A shaft 3 a extending upward from the motor 3 extends through the top plate 2 C in the vertical direction, and is connected to the disc center of the rotary table 4.

  The component loading unit 5 has a container 6 that accommodates the plurality of oil-impregnated bearings 7 and opens in the lower surface, and a second drive unit D2 that swings the container 6 on the rotary table 4.

FIG. 4 is a plan view showing the operation of the component loading unit 5. FIG. 5 is a cross-sectional view showing the container 6. FIG. 6 is a perspective view of the container 6.
The second drive portion D2 has a motor 9, a disk-shaped cam 10, a swing arm 11 connecting the container 6 and the cam 10, and a fixed shaft 12 serving as a swing fulcrum of the swing arm 11. .
The motor 9 is fixed to the lower surface of the top 2C. The motor 9 has a shaft 9a extending in the vertical direction. The shaft 9a extends upward through the top 2C. The cam 10 is fixed to the upper end of the shaft 9a.

The cam 10 has a shaft portion 10a extending upward from a horizontally expanding plate surface. The shaft portion 10 a is disposed at a position deviated from the rotation center of the cam 10 in plan view. One end of the swing arm 11 is rotatably connected to the shaft portion 10a.
The swing arm 11 is a rod-like member extending from the cam 10 to the rotary table 4 side. The container 6 is supported at the tip of the swing arm 11. The swinging arm 11 has an elongated hole 11a at the center portion which penetrates the swinging arm 11 in the vertical direction. The elongated hole 11 a extends in the longitudinal direction of the swing arm 11. The fixed shaft 12 is inserted into the long hole 11a.

  The fixed shaft 12 is fixed to the upper surface of the top 2C. The fixed shaft 12 has a cylindrical shape extending upward from the upper surface of the mounting portion 12a. A hemispherical support portion 12 b for supporting the swing arm 11 from the lower side is provided at a position away from the fixed shaft 12 on the upper surface of the mounting portion 12 a.

  The container 6 is a cylindrical container extending in the vertical direction. The upper end and the lower end of the container 6 open in a circle, respectively. The lower end surface of the container 6 vertically faces the upper surface 4 a of the rotary table 4. The lower end surface of the container 6 and the upper surface 4a of the rotary table 4 are disposed close to each other to such an extent that the oil-impregnated bearing 7 can not pass through, as shown in FIG.

  The container 6 has, at its lower end, a component discharge port 6a for selectively passing the oil-impregnated bearing 7 in a predetermined posture. As shown in FIG. 5 and FIG. 6, the component discharge port 6 a is a rectangular recess or notch in a side view that is recessed upward from the lower end of the container 6. The height H of the component discharge port 6 a from the top surface 4 a of the rotary table 4 is more than one and less than twice the height h of the oil-impregnated bearing 7. The height of the oil-impregnated bearing 7 means the height when the oil-impregnated bearing 7 is in the predetermined posture. The predetermined posture of the oil-impregnated bearing 7 is a posture in which the oil-impregnated bearing 7 falls on the rotary table 4 and the through hole of the oil-impregnated bearing 7 is directed in the vertical direction. The height of the oil containing bearing 7 corresponds to the thickness of the oil containing bearing 7.

  The second drive unit D2 causes the container 6 to make a circular motion at a predetermined place on the top surface 4a of the rotary table 4 as shown in FIG. The second drive unit D2 causes the swing arm 11 to swing using the fixed shaft 12 as a support shaft by rotating the cam 10 with the motor 9. The container 6 supported by the tip of the swing arm 11 performs the same circular motion as the shaft 10 a of the cam 10.

  In the present embodiment, when the container 6 circularly moves on the rotary table 4, the component discharge port 6 a of the container 6 is always directed to the downstream side in the rotational direction A of the rotary table 4. Thus, the oil-impregnated bearing 7 discharged from the component discharge port 6 a of the container 6 smoothly flows downstream on the rotary table 4 without being disturbed by the circular movement of the container 6.

  The component loading unit 5 having the above-described configuration discharges the oil-impregnated bearing 7 from the component discharge port 6 a so as to cut out the oil-containing bearings 7 one by one with the rotational movement of the container 6. Specifically, the oil-impregnated bearings 7 in the container 6 constitute an oil-impregnated bearing row 7A by adhering to each other with oil. The component discharge port 6a is discharged so as to be cut out one by one sequentially from the oil-impregnated bearing 7a positioned at the bottom of the oil-impregnated bearing row 7A which is standing on the rotary table 4. Thereby, the oil-impregnated bearing 7 is discharged alone and in a state of being stuck to the rotary table 4. The oil-impregnated bearing 7 discharged from the container 6 is conveyed to the part removal portion 8 in a state of being stuck on the rotary table 4.

  When the container 6 rotates, in the container 6, the oil-impregnated bearing trains 7A with the oil-impregnated bearings 7 stuck to each other by the oil continue to be kept colliding with each other. As a result, the number of the oil-impregnated bearing rows 7A standing as if firmly adhering on the rotary table 4 gradually increases, so that the oil-impregnated bearings 7 are stably discharged from the component discharge port 6a.

  In addition, the oil-impregnated bearing 7 which exists alone in the container 6 is more stable in a state of being stuck to the rotary table 4 in a fallen state than in a state of standing on a cylindrical outer peripheral surface. Therefore, when the oil-impregnated bearing 7 is stirred in the container 6, the oil-impregnated bearing 7 in a fallen state increases. Then, from the component discharge port 6 a of the container 6, the oil-impregnated bearing 7 is discharged in a single state so as to be cut out in a state of being stuck to the rotary table 4. Further, the oil-impregnated bearing 7 stuck to the inner wall surface of the container 6 is also gradually lowered by its own weight and the circular motion of the container 6, and then stuck to the rotary table 4 and discharged.

  In order to maintain the oil-impregnated bearing row 7A in the container 6, it is necessary to place the oil-impregnated bearings 7 in the container 6 somewhat densely. When the oil-impregnated bearings 7 are distributed sparsely in the container 6, collision of the oil-impregnated bearings 7 with each other hardly occurs, and the oil-impregnated bearing row 7 A becomes difficult to stand on the rotary table 4. In the present embodiment, since the upper portion of the container 6 is open, the oil-impregnated bearing 7 can be appropriately replenished from the upper portion of the container 6. Further, when the container 6 is transparent, the oil-impregnated bearing 7 in the container 6 can be easily visually recognized from the outside, and the amount of the oil-impregnated bearing 7 can be easily managed.

  In the component loading unit 5 of the present embodiment, when the rotational movement of the container 6 by the second drive unit D2 is stopped, the discharge of the oil-impregnated bearing 7 from the component discharge port 6a is also stopped. When the rotational movement of the container 6 is stopped, the oil-impregnated bearing 7 in the container 6 is not stirred, so the oil-impregnated bearing 7 in a posture capable of passing through the component outlet 6a gradually decreases and can not pass the component outlet 6a This is because the oil-impregnated bearing 7 in the state is hooked on the component discharge port 6a. When the rotational movement of the container 6 is resumed, the oil-impregnated bearing 7 is agitated, and the discharge of the oil-impregnated bearing 7 from the component outlet 6a is resumed.

FIG. 7 is a perspective view showing a part taking out part.
The component pickup portion 8 is a plate-like member disposed on the rotary table 4. The component pick-up portion 8 is a component flow surface as a component retention portion for decelerating the oil-impregnated bearing 7 on the rotary table 4 and a component flow as a component delivery portion for unloading a predetermined number of oil-impregnated bearings 7 retained in the component retention portion. And an inlet 15a and a part alignment groove 15.

  The component flow surface 8 a extends in a direction intersecting the rotational direction A of the rotary table 4. In the present embodiment, the component flow surface 8a is a surface that faces the upstream side in the rotational direction A, and is an inclined surface that inclines to the downstream side as it goes inward in the radial direction. The part flow surface 8 a receives the oil-impregnated bearing 7 on the rotary table 4 and causes it to flow downstream. More specifically, the oil-impregnated bearing 7 conveyed to the component pick-up portion 8 in a state of being stuck to the rotary table 4 is decelerated against the component fluid surface 8a and thereafter is rotated along the component fluid surface 8a by the rotational force of the rotary table 4 Move radially inward and downstream.

The component inlet 15a opens to the component flow surface 8a. In the present embodiment, the component removal portion 8 has five component inflow ports 15a which are cut out in a rectangular shape at the lower end of the component flow surface 8a. The component alignment groove 15 extends from the component inlet 15 a along the upper surface of the rotary table 4.
The five component alignment grooves 15 are provided in parallel five rows from the five component inlets 15a. The component alignment groove 15 is a groove that opens in the surface of the component removal portion 8 facing the rotary table 4 and has a width that aligns the oil-impregnated bearings 7 in a row. The oil-impregnated bearing 7 moves along the component alignment groove 15 in a state of being stuck to the rotary table 4.

  The component alignment groove 15 extends through the outer periphery 4 b of the rotary table 4 to the outside of the rotary table 4. At the end of the component alignment groove 15, a component supply port 15b having a space for one oil-impregnated bearing 7 is provided. The component supply port 15b is open at the upper side, and the oil-impregnated bearing 7 can be suctioned and transported by the pickup nozzle of the component mounting machine.

  A part of the oil-impregnated bearing 7 which moves on the component flow surface 8 a by the rotational force of the rotary table 4 at the component removal portion 8 is partially drawn into the component inflow port 15 a and guided to the component alignment groove 15. The oil-impregnated bearing 7 is conveyed along the component alignment groove 15 and held in a line from the component supply port 15b.

  The oil-impregnated bearing 7 which does not enter the component inlet 15a moves downstream along the component flow surface 8a and flows out from the downstream end of the component flow surface 8a. The position of the end of the part flow surface 8 a is inside the radial position of the container 6, and the excess oil-impregnated bearing 7 flowing out from the end of the part flow surface 8 a does not interfere with the circular movement inside the container 6 in the radial direction. Pass by.

  In the present embodiment, a component recovery unit 20 is provided at the intersection S between the upstream end of the component flow surface 8 a and the outer periphery 4 b of the rotary table 4. The parts collection unit 20 has a parts storage container 21 installed at a position opening to the top plate 2C of the base 2. The parts collection unit 20 collects the oil-impregnated bearing 7 overflowing from the parts flow surface 8 a toward the outer periphery 4 b of the rotary table 4 in the parts storage container 21. The component storage container 21 is detachably attached to the top plate 2C.

  In the present embodiment, the oil-impregnated bearings 7 sequentially hit the component flow surface 8a and move along the component flow surface 8a. At this time, if the speed at which the oil-impregnated bearing 7 moves on the component flow surface 8a is low, the oil-impregnated bearings 7 fed one after another are blocked by the component flow surface 8a and continue to accumulate, and a lump of oil-impregnated bearing 7 is produced. Therefore, by dropping the excess oil-impregnated bearing 7 in the component recovery unit 20, the oil-impregnated bearing 7 can be prevented from remaining more than necessary, and the oil-impregnated bearing 7 can be smoothly moved along the component flow surface 8a. Thereby, the oil-impregnated bearing 7 can be smoothly introduced into the component inlet 15a. The oil-impregnated bearing 7 stored in the component storage container 21 may be returned into the container 6.

  According to the component supply device 1 of the present embodiment, since the oil-impregnated bearing 7 can be disposed on the rotary table 4 in a predetermined attitude, the oil-impregnated bearing 7 in the same attitude can be stored on the component flow surface 8 a of the component removal portion 8. Thus, the oil-impregnated bearing 7 stored in the same posture can be carried out efficiently and easily, so that parts can be smoothly supplied to the external device.

FIG. 8 is a perspective view showing a guide plate.
The component supply device 1 of the present embodiment has a guide plate 22 disposed on the rotary table 4. The guide plate 22 is disposed between the container 6 and the component outlet 8. The guide plate 22 has a guide portion 23 located at the rotation center of the rotary table 4. The guide portion 23 moves the oil-impregnated bearing 7 discharged from the container 6 and the component flow surface 8 a toward the outer peripheral side of the rotary table 4.

  The guide plate 22 is a plate-like member that covers a sector area of about 1⁄4 of the rotary table 4 from the upper side. The guide plate 22 has a component passage 22A between the upper surface of the rotary table 4 and the oil-impregnated bearing 7 stuck to the upper surface 4a. The guide plate 22 has an inlet 22a of the component passage 22A directed to the upstream side in the rotational direction A and an outlet 22b directed to the downstream side.

  The guide portion 23 extends from the inlet 22a of the guide plate 22 to the outlet 22b, and constitutes a wall surface on the inner peripheral side of the component passage 22A. The guide portion 23 extends from a first guide portion 23a extending in a tangential direction of the rotary table 4 from an end portion on the rotation center side of the inlet 22a and an end of the first guide portion 23a And a second guide portion 23b inclined to the The downstream end of the second guide portion 23b is located at the outlet 22b.

  The component supply device 1 of this embodiment can move the oil-impregnated bearing 7 moving in the component passage 22A to the outer periphery 4b side of the rotary table 4 by including the guide portion 23. As a result, the oil-impregnated bearing 7 discharged from the outlet 22b moves near the outer periphery 4b of the rotary table 4 and hits the position near the outer periphery 4b of the component flow surface 8a. With this configuration, the component flow surface 8a can be maximally extended in the radial direction. If the component flow surface 8a is longer, the number of component inlets 15a can be increased, and the number of component alignment grooves 15 can be increased.

The component supply device 1 having the above configuration operates as follows.
The motor 3 and the motor 9 start driving by inserting a sufficient amount of the oil-impregnated bearing 7 into the container 6 and turning on the switch 25 (see FIG. 1). When the cam 10 is rotated by the motor 9, the container 6 is circularly moved by the rocking of the rocking arm 11. As a result, the oil-impregnated bearings 7 are cut out one by one from the component discharge port 6 a of the container 6 and discharged. The oil-impregnated bearing 7 discharged from the container 6 is conveyed downstream in a state of being stuck to the upper surface 4 a of the rotary table 4. The oil-impregnated bearing 7 on the rotary table 4 enters the component passage 22A from the inlet 22a of the guide plate 22 and is transported along the guide portion 23.

  The oil-impregnated bearings 7 coming out of the outlet 22 b of the guide plate 22 sequentially hit the component flow surface 8 a of the component removal portion 8 and move along the component flow surface 8 a. Excess oil-impregnated bearing 7 is dropped from the rotary table 4 into the component storage container 21 on the component flow surface 8 a. The oil-impregnated bearing 7 moving downstream along the component flow surface 8a is partially drawn into the component inlet 15a, and the oil-impregnated bearing 7 entering from the component inlet 15a is in a line along the component alignment groove 15 It is transported.

The leading end of the oil-impregnated bearing 7 in the component alignment groove 15 stands by in the component supply port 15b and is attracted by the pickup nozzle of the component mounting machine. In addition, excess oil-impregnated bearings 7 flowing from the radially inner end of the component flow surface 8 a are conveyed in a row on the rotary table 4 to the guide plate 22. The oil-impregnated bearing 7 that has entered the component passage 22A is moved toward the outer periphery 4b by the guide portion 23, and is again supplied to the component flow surface 8a.
If the component alignment groove 15 is full of the oil-impregnated bearing 7, this condition may be detected by an optical sensor to stop the supply of the oil-impregnated bearing 7 to the rotary table 4. In order to stop the supply of the oil-impregnated bearing 7, the motor 9 is stopped to make it difficult to discharge the oil-impregnated bearing 7 from the component outlet 6a of the container 6.

Second Embodiment
FIG. 9 is a plan view showing the component supply device 1A of the second embodiment. FIG. 10 is a view showing the component retaining portion of the present embodiment.
As shown in FIG. 9, the component supply device 1A has a base 2, a rotary table 4, a component loading unit 5, a component removal unit 18, and an oil recovery unit 40. The component removal unit 18 has a guide plate 22 as a component retention unit, an arm unit 30 that constitutes a component delivery unit, and a third drive unit D3.
In the component supply apparatus 1A, the configurations of the rotary table 4, the first drive unit D1, the component loading unit 5, and the guide plate 22 are the same as those of the component supply apparatus 1 of the first embodiment.

  The guide plate 22 functions as a component retaining portion for retaining the oil-impregnated bearing 7 in the present embodiment. The guide plate 22 is located at the outer peripheral portion of the rotary table 4 and radially opposed to the outer peripheral wall portion 26 extending along the peripheral direction of the rotary table 4 and the outer peripheral wall portion 26. And an inner circumferential wall portion 27 located. In the case of the present embodiment, the inner circumferential wall portion 27 corresponds to the guide portion 23 in the first embodiment, and has a first guide portion 23a and a second guide portion 23b.

  The arm portion 30 is a plate-like member having a rectangular shape in plan view extending in the radial direction of the rotary table 4. The arm portion 30 is disposed along the end face of the guide plate 22 on the outlet 22 b side. The arm portion 30 extends over the downstream end of the outer peripheral wall 26 of the guide plate 22 and the downstream end of the inner peripheral wall. The arm portion 30 has an accommodation concave portion 30 a and a concavo-convex shaped portion 30 b on the upstream end face facing the outlet 22 b of the guide plate 22.

  As shown in FIG. 10, the accommodation recess 30a is a recess that is recessed from the upstream end surface of the arm 30 toward the downstream side. The accommodation recess 30 a has a size that accommodates only one oil-impregnated bearing 7. In addition, two or more accommodation recessed parts 30a may be provided. The accommodation recess 30 a may be capable of accommodating two or more fixed numbers of oil-impregnated bearings 7.

  In the case of the present embodiment, the concavo-convex shaped portion 30 b is a concave portion that is recessed from the upstream end surface of the arm portion 30 toward the downstream side. However, the concavo-convex shaped portion 30 b is smaller than the accommodation recess 30 a and has a size that can not accommodate the oil-impregnated bearing 7. The uneven portion 30b may be provided at a plurality of places.

The arm unit 30 is connected to the third drive unit D3 at the radially outer end.
The third drive portion D3 is a drive device for reciprocating the arm portion 30 in the radial direction. For example, a driving device having a ball screw or a linear motor can be used as the third driving portion D3. In the case of the present embodiment, the component placement unit 31 serving as a component supply port to the external device is provided on the upper surface of the third drive unit D3. The third drive portion D3 moves the housing recess 30a from the position facing at least the outlet 22b of the guide plate 22 to the position of the component placement portion 31.

  In the component supply device 1A having the above configuration, the oil-impregnated bearing 7 is disposed on the upper surface 4a of the rotary table 4 by swinging the container 6 in a state where the rotary table 4 is rotated. The oil-impregnated bearing 7 disposed on the upper surface 4 a moves to the downstream side in a state of being stuck to the rotary table 4, and enters the component passage 22 A from the inlet 22 a of the guide plate 22. Since the outlet 22b of the guide plate 22 is closed by the arm 30, the oil-impregnated bearing 7 remains in the component passage 22A.

  The oil-impregnated bearing 7 staying in the component passage 22A is pressed against the end face of the arm portion 30 facing the upstream side by the rotational force of the rotary table 4. Thus, the oil-impregnated bearing 7 is smoothly accommodated in the accommodation recess 30 a of the arm 30.

  The arm portion 30 is moved radially outward by the third drive portion D3, whereby the oil-impregnated bearing 7 accommodated in the accommodation recess 30a is carried out of the rotary table 4 to the outside. The oil-impregnated bearing 7 in the accommodation recess 30 a is discharged to the component placement unit 31. Thereafter, the third drive portion D3 moves the arm portion 30 radially inward to return the housing recess 30a to a position facing the outlet 22b of the guide plate 22.

  In the present embodiment, since the uneven portion 30b is provided in the arm 30, the oil-impregnated bearing 7 in the vicinity of the outlet 22b is agitated by the uneven portion 30b as the third drive D3 reciprocates the arm 30. . Thereby, the oil-impregnated bearing 7 can be accommodated smoothly by the accommodating recess 30 a, and the oil-impregnated bearing 7 can be taken out to the component placement portion 31 at a fixed timing.

  According to the component supply device 1A of the present embodiment, the oil-impregnated bearing 7 can be retained in the same position in the component passage 22A of the guide plate 22, and can be smoothly taken out by the accommodation recess 30a of the arm portion 30. Further, since the oil-impregnated bearing 7 is not kept flowing on the rotary table 4 but gathered in the component passage 22A, the state of the oil-impregnated bearing 7 on the rotary table 4 can be easily managed. Supply can be suppressed.

  In the present embodiment, on the rotary table 4 between the arm unit 30 and the container 6, an oil recovery unit 40 extending in the radial direction of the rotary table 4 is disposed. The oil recovery unit 40 is, for example, a non-woven fabric that absorbs oil, and is fixed to the base 2. The oil recovery unit 40 contacts the upper surface 4 a of the rotary table 4 and recovers the oil adhering to the upper surface 4 a.

  By providing the oil recovery unit 40, the component supply device 1A can suppress the adhesion of dirt and the like to the oil-impregnated bearing 7 due to the excess oil content on the rotary table 4. In the present embodiment, unlike the first embodiment, since there is a region where the oil-impregnated bearing 7 does not flow on the rotary table 4, the oil recovery unit 40 can be disposed.

  In the present embodiment, a sensor unit 45 that detects the oil-impregnated bearing 17 staying in the component passage 22A may be disposed on the guide plate 22 near the outer peripheral end of the inlet 22a. The sensor unit 45 is, for example, an optical sensor. If the guide plate 22 is transparent, the sensor unit 45 can be installed on the upper surface of the guide plate 22. If the guide plate 22 is opaque, the guide plate 22 may be provided with a through hole or a transparent window, and the sensor unit 45 may be installed on the through hole or the window.

  The sensor unit 45 can detect the amount of stagnation of the oil-impregnated bearing 17. When the sensor unit 45 detects the oil-impregnated bearing 17, the oil-impregnated bearing 17 stays near the inlet 22a of the component passage 22A, and an excessive amount of oil-impregnated bearing 17 is present on the rotary table 4. In this case, the supply of the oil-impregnated bearing 7 to the rotary table 4 is stopped. In order to stop the supply of the oil-impregnated bearing 7, the motor 9 is stopped to make it difficult to discharge the oil-impregnated bearing 7 from the component outlet 6a of the container 6.

(Modification)
FIG. 11 is an explanatory view of a modified example.
In the first and second embodiments, the cylindrical oil-impregnated bearing 7 is used as a work, but the oil-impregnated bearing may be a stepped oil-impregnated bearing 17 as shown in FIG. The stepped oil-impregnated bearing 17 has a large diameter portion 17a having a first diameter and a small diameter portion 17b having a diameter smaller than the first diameter. The large diameter portion 17a and the small diameter portion 17b have a concentric annular shape and are arranged side by side in the thickness direction.

  When the stepped oil-impregnated bearing 17 is used as the work, a container 6A shown in FIG. 11 is used instead of the container 6 shown in FIGS. The container 6A has a component discharge port 16 shaped in accordance with the stepped oil-impregnated bearing 17.

  The component discharge port 16 is formed of a recess that is recessed upward from the lower end of the container 6A. The concave portion constituting the component discharge port 16 is located at the lower end of the container 6A and has a rectangular first portion 16a having a first width in the horizontal direction, and is located above the first portion 16a and is closer to the first portion 16a. And a rectangular second portion 16b having a second width which is also small. Both side surfaces of the recess have stepped portions 16c between the first portion 16a and the second portion 16b.

  The first portion 16 a of the component discharge port 16 has a width and a height through which the large diameter portion 17 a of the stepped oil-impregnated bearing 17 can pass. The second portion 16 b has a width and a height that can pass through the small diameter portion 17 b of the stepped oil-impregnated bearing 17.

  According to the component supply device of the modification having the above configuration, the stepped oil-impregnated bearing 17 can be discharged one by one in a predetermined posture by the component discharge port 16 formed of a recess having the first portion 16a and the second portion 16b. As in the first and second embodiments, the stepped oil-impregnated bearing 17 can be efficiently supplied to the external device.

  In the above modification, the recess forming the component discharge port 16 is configured to have the step portion 16c, but it is a recess having a shape such as an arch shape in which the width in the horizontal direction increases from the upper side to the lower side. It may be. Even when the component discharge port 16 is configured by such a recess, the stepped oil-impregnated bearings 17 can be discharged one by one in a predetermined posture.

  1, 1A: component supply device, 4: rotary table, 4a: upper surface, 4b: outer periphery, 5: component loading portion, 6, 6A: container, 6a, 16: component discharge port, 8, 18: component removal portion, 8a ... Part flow surface, 11 ... Swing arm, 15 ... Parts alignment groove, 15a ... Parts inlet, 16a ... 1st part, 16b ... 2nd part, 16c ... Step part, 20 ... Parts collection part, 22a ... inlet, Reference numeral 22b: outlet, 23: guide portion, 26: outer peripheral wall portion, 27: inner peripheral wall portion, 30: arm portion, 30a: housing recess, 30b: uneven portion, 40: oil recovery portion, 45: sensor portion, A: Direction of rotation, D1 ... first drive, D2 ... second drive, D3 ... third drive, h, H ... height, S ... intersection

Claims (12)

A component supply device for supplying a predetermined number of oil-containing components to an external device, wherein
A rotatable table rotatable about a central axis extending up and down;
A first drive unit configured to rotate the rotary table;
A parts loading unit for arranging a plurality of the oil-impregnated parts on the rotary table;
A component extraction unit for extracting a predetermined number of the oil-impregnated components from the plurality of oil-impregnated components on the rotary table;
Equipped with
The parts removal unit is
A component retention portion for retaining the oil-impregnated component on the rotary table;
A part unloading part for unloading a predetermined number of the oil-impregnated parts retained in the parts retention part;
Have
The component loading unit has a cylindrical container that accommodates the oil-impregnated component and opens on the lower surface, and a second drive unit that causes the container to swing on the rotary table.
The container has a component discharge port at a lower end portion for selectively passing the oil-containing component in a predetermined posture.
Parts supply device. The component discharge port is a recess that is recessed upward from the lower end of the container,
2. The parts supply device according to claim 1, wherein the height of the parts discharge port from the upper surface of the rotary table is more than 1 time and twice or less of the height of the oil-impregnated part in the predetermined posture.   The parts supply device according to claim 2, wherein the recess is rectangular in a side view of the container.   The parts supply device according to claim 2, wherein the recess has a shape in which the horizontal width increases from the upper side to the lower side. The recess is a first portion located at the lower end of the container and having a first width in the horizontal direction, and a second portion located above the first portion and having a second width smaller than the first portion Have and
The component supply device according to claim 4, wherein both side surfaces of the concave portion have stepped portions between the first portion and the second portion. The component retaining portion has a component flow surface extending in a direction intersecting with the rotation direction of the rotary table to receive the oil-containing component and flow downstream.
The component outlet has a component inlet opening to the component flow surface, and a component alignment groove extending from the component inlet along the upper surface of the rotary table.
The components supply apparatus of any one of Claim 1 to 5. It has a guide portion which is disposed between the container on the rotary table and the component pick-up portion, and moves the oil-containing component discharged from the container to the outer peripheral side of the rotary table.
The parts supply apparatus according to claim 6. A component recovery unit for recovering the oil-impregnated component that overflows from the component flow surface to the outer peripheral side of the rotary table is provided at the intersection between the component flow surface and the outer peripheral end of the rotary table.
The parts supply apparatus of Claim 6 or 7. The component retaining portion is located at an outer peripheral portion of the rotary table, and is radially opposed to an outer peripheral wall extending along a circumferential direction of the rotary table, and an inner peripheral portion of the rotary table. And an inner circumferential wall portion located;
The component delivery unit includes an arm extending between the downstream end of the outer peripheral wall and the downstream end of the inner peripheral wall, and a third drive that swings the arm radially And
The arm portion is recessed from an end face on the upstream side toward the downstream side, and has an accommodating recess for accommodating the oil-impregnated component.
The components supply apparatus of any one of Claim 1 to 5.   The component supply device according to claim 9, wherein the arm portion has, on an end surface on the upstream side, a concavo-convex shape portion that stirs the plurality of oil-impregnated components that are retained by the arm portion.   11. The component supply according to claim 9, further comprising: an oil recovery unit positioned downstream of the arm unit and upstream of the component loading unit in the rotational direction of the rotary table and recovering oil on the rotary table. apparatus.   The component supply apparatus according to any one of claims 9 to 11, further comprising: a sensor unit that detects a retention amount of the oil-containing component in the component retention unit.

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