JPH0435065Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a parts holding mechanism, and more specifically, for example, in order to automatically press fit a valve guide into a cylinder head constituting an internal combustion engine, a predetermined number of parts are held by a holding member. In addition to positioning the valve guides at desired intervals, the valve guides are prevented from separating from the holding member when the holding member is displaced toward the press-fitting device, so that the valve guides can be efficiently attached to the press-fitting device. The present invention also relates to a parts holding mechanism that makes it possible to supply parts reliably.

In factories, engines that constitute internal combustion engines are assembled quickly and efficiently using automated line production processes. For example, in order to install an inlet valve or an outlet valve on a cylinder head, the work of assembling the valve guide into the cylinder head in advance is to carry out a predetermined number of valve guides conveyed via a parts feeder etc. through an automatic supply device. This is done automatically by arranging them at desired intervals and feeding them to a press-fitting device, and then press-fitting them into the cylinder head via the press-fitting device.

In this case, it is necessary to supply a predetermined number of valve guides to the press-fitting device after adjusting their positions in accordance with the press-fitting angle, press-fitting position, and number of valve guides to be press-fitted into a predetermined cylinder head. Therefore, in general, a desired number of conveyance passages are extended from the parts feeder to the press-fitting device, and the valve guide is fed to the press-fitting device through each of the passages.

However, in the above-mentioned conventional technology, if the parts to be transported are rod-shaped like a valve guide, the passage cannot be bent, and the passage between the parts feeder and the press-fitting device is considerably long in the horizontal direction. As a result, it extends. For this reason, it takes a considerable amount of time to feed the valve guide from the parts feeder to the press-fitting device, resulting in the inconvenience that it is difficult to efficiently press-fit the valve guide. Moreover, since the valve guide is configured to feed out in a horizontal direction,
It is often difficult to convey the valve guide smoothly within the passage, and there is a risk that the valve guide will not be reliably fed to the press-fitting device.

The present invention has been made to overcome the above-mentioned disadvantages, and includes dropping parts to a holding member via a parts feeder or the like, aligning and positioning the parts, and then displacing the holding member toward the assembly device. The parts are configured to be feedable to the assembly device, and a locking means including a lock pin capable of fixing each part to the holding member and a cam member that engages with the lock pin is disposed, and the holding member is When reaching the receiving position and the sending position to the assembly device, respectively, the fixing action of the part by the lock pin is released under the action of the cam member to take in and take out the part, while the holding member When the parts are displaced, the lock pins engage with the respective parts to prevent the parts from coming off, thereby making it possible to efficiently and reliably transport the parts from the parts feeder to the assembly device. The purpose of this invention is to provide a parts holding mechanism that provides a

To achieve the above object, the present invention includes a plurality of first holes spaced apart at a desired interval in order to fit a predetermined number of parts, and a plurality of first holes each partially communicating with the first holes. a holding member formed with two holes; a lock pin inserted into the second hole with an elastic body interposed therein and having a circumferential groove formed on its outer periphery; and a lock pin extending in a direction perpendicular to the lock pin. and a cam member that is provided with a pressing surface and a groove that engages with each lock pin, and is slidably disposed on the holding member via an elastic body; When the cam member reaches the position, the cam member engages with the cam member, and the pressing surface of the cam member pushes each lock pin into the second position.
While the parts are loosely fitted into the circumferential groove of the lock pin by pressing into the hole, when the holding member is displaced, it is separated from the cam member and the respective lock pins are inserted into the groove of the cam member by the elastic body. The fixing cam member is provided with a fixed cam member that enters through force and presses and holds the part with a surface portion defining the circumferential groove of the lock pin.

Next, preferred embodiments of the parts holding mechanism according to the present invention in relation to an automatic feeding device incorporating the same will be described in detail with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 designates an automatic parts feeding device incorporating a parts holding mechanism according to the present invention. In this case, the automatic supply device 10 is placed on the work floor 12, and upper walls 14a and 14b horizontally suspended above the floor 12 have parts, for example, placed on the automatic supply device 10. , a parts distribution device 16 is provided that arranges and feeds a predetermined number of valve guides (described later) at equal intervals.

Therefore, first, the parts distribution device 16 will be explained. That is, support columns 18a, 20a and 1 having different heights are installed on the upper walls 14a and 14b, respectively.
8b, 20b are erected, and a parts feeder 22 is mounted on the tall pillars 18a, 18b.
a, 22b are provided, while other supports 20a,
Parts feeders 24a and 24b are arranged at 20b. The parts feeders 22a and 22b are supplied with an outlet valve valve guide 26a and an inlet valve valve guide 26b which are press-fitted into a single cylinder head (not shown). Similarly, the parts feeders 24a and 24b accommodate valve guides for outlet valves (not shown) and valve guides for inlet valves (not shown), respectively, and the valve guides are fed to other cylinder heads (not shown). The parts feeders 22a, 22b and 24a, 24b each have a coil spring-like flexible tubular body 28a,
One end of 28b and 28c, 28d are connected, and the tubular bodies 28a, 28b and 28c, 2
The other end of 8d is the arrangement mechanism 30a, 30b and 3
2a and 32b.

That is, the frame 34 is attached to the upper wall portions 14a and 14b.
a, 34b are erected, and the frames 34a,
A pair of arrangement mechanisms 30a and 30b are provided at the upper end of 34b so as to be oriented in the vertical direction and inclined, and below each of the arrangement mechanisms 30a and 30b are provided with arrangement mechanisms 30a and 30b that are also oriented in the vertical direction. A pair of tilting arrangement mechanisms 32a, 32b is provided.

As shown in FIG. 1, a plate body 36 constituting the arrangement mechanism 30a is fixed on a pedestal 34a, and the upper surface of the plate body 36 has a width larger than the diameter of the valve guide 26a and is vertically Grooves 38a to 38j extending in parallel are formed in parallel to each other (see FIG. 2). Coil spring-shaped flexible tubular bodies 40 are provided in the plate body 36 so as to communicate with the lower ends of the grooves 38a to 38j, respectively.
One ends of a to 40j are attached. In this case, it goes without saying that the number of grooves 38a to 38j can be increased or decreased as necessary.

A cylinder 42 is fixed to one side of the plate 36 in a direction perpendicular to the grooves 38a to 38j, and a distribution member 46 is engaged with a cylinder rod 44 of the cylinder 42. The distribution member 46 extends in a direction perpendicular to the cylinder rod 44, and a parts fitting groove 48 is formed in the lower part of the distribution member 46 in parallel with the grooves 38a to 38j of the plate 36. Further, a stopper portion 50 is formed protruding from the upper end portion of the distribution member 46 and extends perpendicularly thereto for a predetermined length toward the cylinder 42 side. When the distribution member 46 is displaced in the direction of arrow A under the action of the cylinder 42, the stopper portion 50 stops at its end surface 53.
The valve guide 26a is held in the tubular body 28a to prevent the valve guide 26a from falling. Furthermore, a locking member 52 that enters into the fitting groove 48 is locked to the distribution member 46 at a predetermined position. Therefore, the valve guide 26a that is fed into the arrangement mechanism 30a from the flexible tubular body 28a that is attached to one end edge of the plate body 36 enters into the fitting groove 48 of the distribution member 46, and the valve at the lowest end thereof enters the fitting groove 48 of the distribution member 46. When the guides 26a come into contact with the locking member 52, a predetermined number of valve guides 26a, for example eight, are coaxially arranged in the fitting groove 48. That is, the arrangement mechanisms 30a, 3
A valve guide 26a for an outlet valve and a valve guide 26b for an inlet valve are supplied to a cylinder head (not shown) constituting a 4-cylinder, 4-valve engine through the 0b. Therefore, when feeding the valve guides 26a to different cylinder heads via the above-mentioned arrangement mechanism 30a, the position of the locking member 52 is selected and the valve guides 26a arranged in the fitting groove 48 are arranged. In addition to adjusting the number of plates, the distribution plate described later may be replaced with a desired one.

Note that guide bars 54a, 54 are provided on the distribution member 46.
b are fitted, and this distribution member 46 is driven by the guide bars 54a, 54 under the driving action of the cylinder 42.
b, and is configured to be preferably displaced in a direction orthogonal to the grooves 38a to 38j.

Next, a distribution plate 5 is disposed on the upper surface of the plate body 36.
6 is removably attached via a fixing screw 58. The valve guide 26 is attached to the distribution plate 56.
Eight rectangular openings 60a to 60h are formed, each having a size selected to allow insertion of the openings 60a to 60h. The openings 60a to 60h are provided at positions corresponding to the grooves 38a to 38h of the plate body 36, respectively, and the openings 60a to 60h are provided in the distribution member 4.
The uppermost opening 60a is located close to the distribution member 46, and the lowermost opening 60h is located close to the distribution member 46. It is the furthest away from 46. On the other hand, the other ends of the tubular bodies 40a to 40j are fitted into the support member 62 and fixed so as to be oriented vertically downward.

Note that the array mechanism 30b is the same as the array mechanism 30 described above.
It is constructed in the same manner as a, and the same reference numerals and the suffix a are attached to the same constituent elements, and detailed explanation thereof will be omitted. In this case, one end of the valve guide conveying tubular bodies 40h to 40t is connected to the plate body 36a constituting the arrangement mechanism 30b, and the other end of the tubular bodies 40h to 40t is fixed to the support member 62a.

Furthermore, a pair of arrangement mechanisms 32a and 32b for feeding valve guides (not shown) to different cylinder heads are configured similarly to the arrangement mechanism 30a, and in this case, they are press-fitted into cylinder heads (not shown). A distribution plate 56 having openings 60a to 60n formed therein corresponding to the number of valve guides to be installed may be mounted, and the position of the locking member 52 of the distribution member 46 may be selected.

An automatic supply device 10 is disposed below the parts distribution device 16 configured as described above. As shown in FIG. 1, a base 64 constituting the automatic feeding device 10 is placed on the floor 12.
A pair of parallel rail members 66a, 66b extend upwardly and are oriented in the longitudinal direction of the base 64. On the rail members 66a, 66b, there is a first part delivery system that adjusts the valve guides 26a, 26b sent out via the arrangement mechanisms 30a, 30b to a predetermined interval, respectively, and sends them to the press-fitting device 68 side. part 69a and other arrangement mechanisms 32a, 32b
A second parts delivery section 69b is provided for feeding a valve guide (not shown) sent out through the press-fitting device to another press-fitting device.

The first parts delivery section 69a includes a base 70, and the base 70 includes rail members 66a and 66b.
A support plate 72 is erected at one end thereof. A mounting plate 73 is attached to the upper end of the support plate 72.
An upper positioning plate 74 is fixed to the tubular bodies 40a to 40j and 40k to 40t, which are parallel to the support member 62 of the parts dispensing device 16 and connected to the arrangement mechanisms 30a and 30b. hole 76 coaxial to
A to 76j and 76k to 76t are formed through. (See Figure 3).

Further, a lower positioning plate 78 that is horizontally oriented and inclined is detachably attached to the support plate 72. In this case, the press-fit attachment 6 of the press-fit device 68 is attached to the lower positioning plate 78.
Holes 80a to 8 whose respective spacing distances are selected corresponding to 8a to 68h and 68i to 68p
0h and 80i to 80p are formed.
Then, the hole 7 of the upper positioning plate 74
6a to 76h and the holes 80a to 80h of the lower positioning plate 78 are flexible tubular bodies 82a to 8
It communicates via 2h. On the other hand, the other holes 76k to 76r and 80i to 80p of the upper positioning plate 74 and lower positioning plate 78 are similarly communicated via flexible tubular bodies 82i to 82p.

Furthermore, a movable main body 84 is mounted on the base 70 so as to be freely displaceable with respect to the base 70 in the longitudinal direction of the base 64 and in a direction orthogonal to the longitudinal direction.
As shown in FIGS. 3 and 4, a first cylinder 86 is fixed to the base 70, and a cylinder rod 86a of the first cylinder 86 has a moving base 88.
is attached. In this case, guide bars 90a and 90b are provided on both sides of the first cylinder 86, respectively, and the movable table 88 is guided through the guide bars 90a and 90b. A second cylinder 92 is fixed to the movable table 88 in a direction perpendicular to the first cylinder 86, and guide bars 94a and 94b are provided on both sides of the second cylinder 92. A movable main body 84 is engaged with the cylinder rod 92a of the second cylinder 92, and the movable main body 84 is guided by guide bars 94a and 94b under the driving action of the second cylinder 92 to advance and retreat with respect to the press-fitting device 68. .

The upper surface portion 84a of the movable main body 84 is inclined at a predetermined angle with respect to the horizontal direction.
A cylinder 100 is fixed to the upper end of the cylinder 100, and a rack 102 is connected to a cylinder rod (not shown) extending from the cylinder 100. On the other hand, rotating shafts 103a and 103b are rotatably supported on the upper surface portion 84a, and a pinion 104 that meshes with the rack 102 is provided on the rotating shaft 103b. Furthermore, the rotating shafts 103a and 103
Relatively large diameter gears 106a and 106b are pivotally attached to the shaft and the gears 106a and 106b are in mesh with each other. And rotation shafts 103a, 103b
The arm members 108a, 108b are externally fitted and engaged, and the parts holding mechanism 110 according to the present invention is attached to the ends of the arm members 108a, 108b.

That is, the parts holding mechanism 110 has approximately prismatic pocket bodies 112a and 11 which are holding members.
2b, the pocket main body 112a, 112
b are fixing screws 113a, 113b and 113
c, arm members 108, 108 via 113d
It is detachably attached to b. The pocket body 1
12a has a hole 114a that is coaxial with the holes 80a to 80h when facing the lower positioning plate 78, and is used to fit and accommodate the valve guide 26a that is dropped and supplied from the holes 80a to 80h.
114h to 114h are drilled. In this case, the holes 114a to 114h are selected to be shorter than the length of the valve guide 26a, and small diameter holes 116a to 116h communicate with their respective ends (see FIG. 5). Further, holes 118a to 118h are formed through the pocket main body 112a so as to be perpendicular to the holes 114a to 114h and communicate with each other in part, and lock pins 120a to 120h are fitted into the holes 118a to 118h. (see Figure 5 and Figures 6a and b).

Small diameter portions 122a to 122h are formed at one ends of the lock pins 120a to 120h, extending outward, and circumferential grooves 124a to 124h are cut in the outer peripheries thereof. Coil springs 126a to 126h are disposed to fit over the small diameter portions 122a to 122h, and one end of the holes 118a to 118h is closed to secure the plate 128 to the pocket main body 112a.
Therefore, the lock pins 120a to 120h protrude outward from the other ends of the holes 118a to 118h through the elastic force of the coil springs 126a to 126h. Therefore, a rod-shaped cam member 130 is inserted into the pocket main body 11 so as to engage with the ends of the lock pins 120a to 120h that protrude outside.
2a so as to be slidable.

That is, at both ends of the pocket main body 112a, fitting parts 1 each having a bent shape over a predetermined length are provided.
32a and 132b, and the fitting portion 132
Insert the cam member 130 into a and 132b. A flange portion 134 is formed at the upper end of the cam member 130, and groove portions 136a to 136a are formed on the outer peripheral surface of the cam member 130 at desired intervals.
36h is formed. In this case, the grooves 136a to 136h are connected to the hole 118 of the pocket main body 112a.
The image portions 138a to 138h defining the lower sides of the groove portions 136a to 136h are oriented vertically downward and inclined outward. A roller 139 is rotatably supported at the lower end of the cam member 130, and
A coil spring 140 is interposed between the pocket body 112a and the pocket body 112a. Therefore, the cam member 130 is pulled downward through the elastic force of the coil spring 140, and the respective grooves 136a to 136
h communicates with the holes 118a to 118h.

Furthermore, one end portion of mounting plates 142a, 142b is fixed to the upper end surface 84a of the movable main body 84 at symmetrical positions with respect to the rotating shaft 103a, and the other bent end portion of the mounting plates 142a, 142b is Fixed cam members 144a and 144b are engaged. Inclined cam surfaces 146a and 146b are formed on the upper portions of the fixed cam members 144a and 144b, respectively, and the pocket main body 112a is attached to the lower positioning plate 78 under the rotational movement of the rotating shaft 103a.
When facing the pocket body 11, a roller 139 supported by the cam member 130 engages with a cam surface 146a of the fixed cam member 144a, while
Similarly, when 2a faces the press-fitting device 68,
The roller 139 is connected to the cam surface 1 of the fixed cam member 144b.
46b.

The other pocket main body 112b is constructed in the same manner as the pocket main body 112a described above, and detailed explanation thereof will be omitted.

The first parts sending section 69a has been described above, but the second parts sending section 69b is configured similarly to the first parts sending section 69a, so detailed explanation thereof will be omitted. In this case, the second parts delivery section 69b supplies the valve guides that are aligned and conveyed via the arrangement mechanisms 32a and 32b to another press-fitting device (not shown), and is connected to the lower positioning plate 78 and the parts holding part mentioned above. The pocket main bodies 112a and 112b constituting the mechanism 110 may be replaced in accordance with the press-fitting device.

The automatic feeding device incorporating the parts holding mechanism according to the present invention is basically constructed as described above, and its operation and effects will be explained next.

The automatic supply device 10 is provided with first and second parts delivery parts 69a and 69b for press-fitting predetermined valve guides into two different types of cylinder heads.
4-cylinder 4 (not shown) via the parts delivery section 69a
A press-fitting device 68 that press-fits the valve guides 26a and 26b into the cylinder head that constitutes the valve engine.
The operation of feeding the valve guides 26a and 26b to the valve guides 26a and 26b will be explained.

First, the process of conveying the valve guides 26a, 26b to the automatic supply device 10 by the parts distribution device 16 will be described in detail.

A large number of valve guides 26a and 26b are supplied to the parts feeders 22a and 22b, respectively.
The arrangement mechanism 30 is operated via the tubular bodies 28a and 28b under the driving action of the parts feeders 22a and 22b.
The valve guides 26a and 26b are sequentially sent out to ports a and 30b. Here, as shown in FIG. 2, the valve guide 26a sent from the tubular body 28a to the arrangement mechanism 30a enters the fitting groove 48 formed in the distribution member 46, and falls along the slope of the pedestal 34a. and is displaced to bring the tip end into contact with the locking member 52. Therefore, the tubular body 28a
The valve guide 26a that is fed in through the fitting groove 48 is arranged in the fitting groove 48. In this case, there are eight valve guides 26a in the fitting groove 48.
are arranged, and the ninth valve guide 26a is located on the same line as the end surface 53 of the stopper portion 50 of the distribution member 46.

Next, when the cylinder rod 44 is displaced in the direction of arrow A under the driving action of the cylinder 42, the distribution member 46 attached to the cylinder rod 44 is moved.
is guided by guide bars 54a and 54b and displaced in the direction of arrow A while holding eight valve guides 26a. For this reason, first, the eighth valve guide 26a located at the highest position is connected to the distribution plate 5.
6, falls from the opening 60a toward the plate 36, and enters the groove 38a formed in the plate 36. Since the plate body 36 is oriented in the vertical direction and is inclined, the groove portion 38a
The valve guide 26a that has fallen down slides and enters the tubular body 40a that communicates with the groove portion 38a.
Furthermore, when the distribution member 46 is displaced in the direction of arrow A, the next valve guide 26a (seventh) falls from the opening 60b into the groove 38b of the plate 36, and slides along the slope of the groove 38b. and reaches the tubular body 40b.

In this way, as the distribution member 46 is displaced in the direction of arrow A, the valve guide 26a accommodated in the fitting groove 48 is sequentially moved into the groove 38 of the plate body 36 through the openings 60a to 60h of the distribution plate 56.
a to 38h, and the valve guide 26a
After reaching each of the tubular bodies 40a to 40h,
The holes 76a to 76h of the upper positioning plate 74 pass through the tubular bodies 40a to 40h and reach the support member 62 side, and face the support member 62.
Feeds falling within.

Next, by displacing the cylinder rod 44 in the direction opposite to arrow A under the action of the cylinder 42 and repositioning the distribution member 46 to the position shown in FIG. The guides 26a enter the fitting grooves 48, and eight new valve guides 26a are held in the fitting grooves 48.

On the other hand, from the parts feeder 22b to the tubular body 28b
The valve guide 26b, which is fed to the arrangement mechanism 30b via the arrangement mechanism 30a, is connected to the tubular body 4 like the arrangement mechanism 30a.
Upper positioning plate 7 via 0k to 40r
It is fed into the holes 76k to 76r of No. 4.

The valve guide 26a that reaches the holes 76a to 76h of the upper positioning plate 74 is connected to the tubular body 8.
Lower positioning plate 7 via 2a to 82h
8 to holes 80a to 80h. Holes 80a to 80h of the lower positioning plate 78
The respective spacing distances are selected corresponding to the press-fitting attachments 68a to 68h of the press-fitting device 68, and the eight valve guides 26a whose respective spacing distances are adjusted by the holes 80a to 80h are attached to this lower positioning plate. The holes 114a to 114h of the pocket main body 112a facing the pockets 78 fall into the holes 114a to 114h. At this time, as shown in FIGS. 5 and 6a, the roller 139 supported on one end of the cam member 130
46a, the cam member 130 is displaced upward against the elastic force of the coil spring 140, and its outer peripheral surface is engaged with the lock pins 120a to 120a.
20b. Therefore, the lock pins 120a to 120h are connected to the coil springs 126.
It is accommodated in the holes 118a to 118h against the elastic force of the holes 118a to 118h, and its circumferential grooves 124a to 124h communicate with the holes 114a to 114h. In the end, the valve guide 26a is connected to the lock pin 12.
Hole 11 without being blocked by 0a to 120h
4a to 114h.

On the other hand, the hole 80i of the lower positioning plate 78
The valve guide 26 is fed dropwise within 80p.
b is inserted and positioned within the pocket main body 112b.

In this way, the pocket bodies 112a, 112b
After the valve guides 26a, 26b are fed into the cylinder 100, the cylinder 100 is driven to displace the rack 102 in the direction of arrow B. Therefore, as shown in FIG. 4, the pinion 1 meshing with the rack 102
04, the rotating shaft 103b rotates in the direction of the arrow, and gears 106a, 106 are attached to the rotating shaft 103b.
The rotating shaft 103a, which is engaged with the rotating shaft 103a through b, rotates in the direction of the arrow. Therefore, arm members 108a, 108
b are rotated in different directions, and the arm members 1
The pocket main body 112a fixed to the pocket body 112a faces the press-fitting device 68.

At this time, when the pocket body 112a rotates in the direction of the arrow via the arm member 108a, the roller 139 of the cam member 130 provided on the pocket body 112a is displaced along the cam surface 146a and separated from the fixed cam member 144a. reach. As a result, the cam member 130 is connected to the coil spring 1.
It descends through the elastic force of 40, and its flange part 1
34 is brought into contact with the pocket main body 112a and positioned. Therefore, as shown in FIG. 6b, the grooves 136a to 136h of the cam member 130 communicate with the holes 118a to 118h, and the holes 118
Lock pin 1 inserted in a to 118h
20a to 120h are coil springs 126a
The tip ends enter the grooves 136a to 136h through the elastic forces of 126h to 126h. As a result, the circumferential grooves 124a to 124h formed in the lock pins 120a to 120h engage with the respective valve guides 26a, and the valve guides 26a are inserted into the holes 1 through the lock pins 120a to 120h.
14a to 114h.

Further, the rack 102 is displaced in the direction of arrow B under the driving action of the cylinder 100, and the rotating shaft 103a is
When the roller 139 supported by the cam member 130 rotates, the cam surface 14 of the fixed cam member 144b
6b. Therefore, the cam member 130 rises against the elastic force of the coil spring 140, and the inclined surface portions 138a to 138h defining the grooves 136a to 136h of the cam member 130 lock the lock pins 120a to 120h into the holes 118a to 1.
Press within 18 hours. As a result, the circumferential grooves 124a to 124 of the lock pins 120a to 120h
h loosely fits each valve guide 26a, and the fixing action of the valve guide 26a is released.

Note that, as described above, by rotating the rotating shaft 103b under the driving action of the cylinder 100,
Arm member 10 attached to the rotating shaft 103b
8b, the pocket main body 112b is connected to the press-fitting device 6.
Facing the 8th side.

Next, as shown in FIG.
2, move the cylinder rod 92a in the direction of arrow C.
When the movable main body 84 is displaced in the direction, the movable main body 84 engaged therewith is guided by the guide bars 94a and 94b and is displaced in the direction of the arrow C with respect to the movable base 88. Therefore,
The respective pocket bodies 112a and 112b are displaced together with the movable body 84 in the direction of arrow C, and the valve guides 26a arranged and housed in the pocket body 112a are delivered to the attachments 68a to 68h of the press-fitting device 68. Become.

Therefore, under the driving action of the second cylinder 92, the cylinder rod 92a is displaced in the direction opposite to the arrow C to separate the movable main body 84 from the press-fitting device 68, and then the first cylinder 86 is driven. Therefore, the cylinder rod 86a is displaced in the direction of arrow D, and the movable base 88 is moved in the direction of arrow D together with the movable main body 84. At that time, the press-fitting device 68 rotates so that the press-fitting attachments 68i to 68p of the press-fitting device 68 face the pocket main body 112b. Further, as described above, after the valve guide 26b held in the pocket main body 112b is delivered to the press-fit attachments 68i to 68i under the action of the second cylinder 92, the movable main body 84 is separated from the press-fit device 68.

In this way, the respective pocket bodies 112a, 1
12b to the press-fitting device 68, the valve guide 26a,
26b, when the cylinder 100 is driven to displace the rack 102 in the direction opposite to the arrow B, the pinion 104 meshes with the rack 102.
rotates in the direction opposite to the arrow, and furthermore, the rotation shaft 103b on which the pinion 104 is provided and the rotation shaft 103b engaged with it via the respective gears 106a and 106b rotate in the direction opposite to the arrow. Therefore, the pocket bodies 112a, 112b, which are attached to the respective rotating shafts 103a, 103b via the arm members 108a, 108b, are oscillated to a position facing the lower positioning plate 78, and the arrangement mechanisms 30a, The valve guides 26a and 26b are now on standby to receive the valve guides 26a and 26b conveyed via the valve guide 30b.

On the other hand, the press-fitting device 68 is connected to the desired valve guide 26.
After receiving the valve guides a and 26b, the valve guide 2
6a and 26b are press-fitted into a cylinder head (not shown).

As described above, the valve guides 26a and 26b conveyed via the arrangement mechanisms 30a and 30b forming the parts distribution device 16 are transferred to the press-fitting device 68 via the first parts delivery section 69a forming the automatic supply device 10.
Although we have explained the work of sending out parts to
It is easily understood that the operation of feeding the valve guide to a press-fitting device (not shown) via the valve guide is performed in the same manner as described above.

In this case, according to the present invention, the parts dispensing device 1
6, for example, the valve guide 26a, are spaced apart and aligned at predetermined intervals, and the press-fit attachments 68a to 6 of the press-fit device 68 are inserted.
It can be efficiently and reliably fed for 8 hours. That is, as described above, the valve guide 26a that is dropped and supplied through the holes 80a to 80h of the lower positioning plate 78 is inserted into the pocket main body 1.
After fitting into the holes 114a to 114h of the cam member 12a, when the pocket main body 112a is swung under the driving action of the cylinder 100, the cam member 130
and lock pins 120a to 120 that engage therewith.
The respective valve guides 26a housed in the holes 114a to 114h are firmly fixed through the holes 114h. For this reason, the pocket body 11
When the valve guide 26a swings, the valve guide 26a moves into the hole 114.
It becomes possible to reliably feed the valve guide 26a to the press-fitting attachments 68a-68h of the press-fitting device 68 without separating from the valve guides 68a-114h. Furthermore, when the pocket main body 112a faces the lower positioning plate 78 and receives the valve guide 26a, and when the pocket body 112a faces the press-fitting device 68 and sends out the valve guide 26a, the cam member 130 moves to the fixed cam members 144a, 144b.
The lock pins 120a to 120h are engaged with each other to release the locking action of the respective valve guides 26a. Therefore, the work of receiving the valve guide 26a dropped and supplied from the lower positioning plate 78 and the work of feeding the valve guide 26a to the press-fitting device 68 can be easily performed.

Furthermore, the valve guide 26a that is dropped and transported from the parts feeder 22a is held by the pocket main body 112a, and then the pocket main body 112a is oscillated to be sent to the press-fitting device 68. Therefore, even if a rod-shaped part such as the valve guide 26a is used, it is possible to efficiently supply the part from the parts feeder 22a to the press-fitting device 68 by shortening the conveyance path as much as possible. It will be done.

As described above, according to the present invention, a predetermined number of parts transported via a parts feeder or the like are positioned and stored in a holding member while being separated for a desired period of time, and the holding member is further moved, for example, by swinging. The part is displaced and supplied to an assembling device or the like, and the part is configured to be firmly fixed to the holding member when the holding member is displaced. For this reason,
The parts do not come off from the holding member due to the displacement operation of the holding member, and the parts can be reliably delivered to an assembly device or the like. Moreover, the parts transport path between the parts feeder and the assembly device is shortened and space is saved, resulting in
It is possible to carry out the parts conveyance work quickly and accurately, and it is possible to achieve the effect that the efficiency of the entire parts assembly process can be easily achieved.

Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited to these embodiments, and various improvements and changes in design are possible without departing from the gist of the present invention. Of course.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted front view of an automatic feeding device incorporating a parts holding mechanism according to the present invention and a parts distributing device, and Fig. 2 is a partially omitted plan view of an arrangement mechanism constituting the parts distributing device shown in Fig. 1. 3 and 4 are partially omitted perspective views of the automatic feeding device, Fig. 5 is a partially omitted side view of the parts holding mechanism according to the present invention, and Figs. 6 a and b are parts according to the present invention. FIG. 3 is an explanatory diagram of the operation of the holding mechanism. 10... Automatic supply device, 16... Parts distribution device, 22a, 22b, 24a, 24b... Parts feeder, 26a, 26b... Valve guide, 3
0a, 30b, 32a, 32b... array mechanism, 6
8...Press-fitting device, 68a-68p...Press-fitting attachment, 69a, 69b...Parts delivery unit, 7
4... Upper positioning plate, 78... Lower positioning plate, 103a, 103b... Rotating shaft,
108a, 108b...arm member, 110...
Parts holding mechanism, 112a, 112b...Pocket body, 120a-120h...Lock pin, 1
30...cam member, 144a, 144b...fixed cam member.

Claims (1)

[Claims for Utility Model Registration] A plurality of first holes spaced apart at desired intervals in order to fit a predetermined number of parts;
a holding member formed with a plurality of second holes partially communicating with the hole; and a lock pin inserted into the second hole with an elastic body interposed therebetween and having a circumferential groove formed on the outer periphery. and a cam member that is provided with a pressing surface and a groove that extend in a direction perpendicular to the lock pins and engage with the respective lock pins, and is slidably disposed on the holding member via an elastic body; When the holding member reaches the parts loading position and the parts feeding position, it engages with the cam member and uses the pressing surface of the cam member to lock each lock pin into the second position.
While the parts are loosely fitted into the circumferential groove of the lock pin by pressing into the hole, when the holding member is displaced, it is separated from the cam member and the respective lock pins are inserted into the groove of the cam member by the elastic body. A part holding mechanism characterized by comprising: a fixed cam member that enters through a force and presses and holds the part with a surface portion defining a circumferential groove of the lock pin.