JPH0478418B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a parts conveyance mechanism, and more specifically, for example, when a valve guide is press-fitted into a cylinder head constituting an internal combustion engine, a part conveyance mechanism is used. After holding a predetermined number of the valve guides that are dropped and supplied by a holding member with a desired distance between them, the valve guides are supplied to the press-fitting device simply by swinging the holding member toward the press-fitting device. A parts transport mechanism that can shorten the valve guide transport path as much as possible, reliably transport the valve guide, and efficiently press-fit the valve guide into the cylinder head. Regarding.

[Prior Art] Engines constituting internal combustion engines are assembled quickly and efficiently in factories using automated line production processes. For example, in order to install an inlet valve or an outlet valve to a cylinder head, the work of assembling the valve guide into the cylinder head in advance involves separating a predetermined number of valve guides conveyed via a parts feeder or the like at desired intervals. This is done automatically by press-fitting the valve guide into the cylinder head via the press-fitting device after it has been positioned and fed to the press-fitting device.

In this case, it is necessary to supply a desired 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 supplied to the press-fitting device through each of the passages.

[Problems to be Solved by the Invention] 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 there is The passage becomes considerably long and extends horizontally. 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 conveyed while being oriented in the horizontal direction, the valve guide is not conveyed smoothly within the passage, and there is a possibility that the valve guide cannot be reliably fed to the press-fitting device.

Furthermore, it has been pointed out that the above-mentioned conventional technology has the disadvantage that it is impossible to apply it to the assembly work of many types of engines, since the press-fitting angle of the valve guide, the press-fitting device, the number of press-fitting pieces, etc. are different for various cylinder heads. has been done.

The present invention has been made in order to overcome the above-mentioned disadvantages, and it shortens the parts transport path from the parts feeder etc. to the assembly device as much as possible, thereby streamlining the parts transport work all at once. The purpose of the present invention is to provide a parts transport mechanism that allows desired parts to be automatically and easily assembled into various different workpieces simply by replacing the holding member, and that also allows the overall structure to be simplified and downsized. shall be.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a method in which a predetermined number of rod-shaped A parts transport mechanism for transporting parts, comprising: first and second rotating shafts that are rotatably disposed by meshing gears mounted on the respective shafts with each other; and the first and second rotating shafts. first and second arm members fixed to the first and second arm members; first and second holding members that align the rod-shaped parts at a desired interval and are attached to the first and second arm members; The first and second holding members can be engaged with one of the rotating shafts to rotate the first and second rotating shafts integrally and in different directions so that the first and second holding members can face the parts receiving position and the parts delivering position. It is characterized by comprising a rotating means.

[Operation] In the parts conveying mechanism according to the present invention, after the parts are held by the first and second holding members at the parts receiving position, the parts are held by the first and second holding members under the action of the rotating means.
The first and second holding members are integrally oscillated through the rotating shaft, and the parts face the parts delivery position. Therefore, a long conveyance path is not required, and parts can be sent out quickly.
Moreover, the first and second rotation shafts can be rotated integrally by a single rotation means, and the number of drive sources can be effectively reduced.

[Embodiments] Next, preferred embodiments of the parts conveyance mechanism according to the present invention in relation to an automatic supply device incorporating the mechanism will be described in detail with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 indicates an automatic feeding device incorporating a parts conveyance mechanism according to this embodiment. In this case, the automatic feeding device 10
A predetermined number of parts, such as valve guides (described later), are attached to the automatic supply device 10 on the upper walls 14a and 14b, which are mounted on the upper wall 2 and horizontally suspended above the floor surface 12. A parts distributing device 16 is provided for distributing parts in an array 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. A valve guide (rod-shaped part) for an outlet valve is press-fitted into a single cylinder head (not shown) in the parts feeders 22a and 22b.
26a and an inlet valve valve guide (rod-shaped part) 26b are supplied. Similarly, a valve guide for an outlet valve and a valve guide for an inlet valve (not shown) are accommodated in the parts feeders 24a and 24b, respectively. And parts feeders 22a, 22b and 24
One ends of coil spring-like flexible carriers 28a, 28b and 28c, 28d are connected to a, 24b, respectively, and the other ends of the carriers 28a, 28b and 28c, 28d are connected to arrangement mechanisms 30a, 30.
0b and 32a, 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.

The plate body 36 constituting the arrangement mechanism 30a is the pedestal 34
grooves 38a to 38j are formed in parallel on the upper surface of the plate 36, each having a width larger than the diameter of the valve guide 26a and extending in the vertical direction. (See Figure 2). The groove portions 38a to 38j are formed in the plate body 36.
One end of each of coil spring-shaped flexible conveying bodies 40a to 40j is attached so as to communicate with the lower end of the conveyor body.

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 body 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 in the carrier 28a is held by the valve guide 26a 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 fed into the arrangement mechanism 30a from the flexible conveyor 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 abut against the locking member 52, a predetermined number, for example, eight valve guides 26a 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, 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 carriers 40a to 40j are fitted into a 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, the valve guide carrier 40 is attached to the plate body 36a constituting the arrangement mechanism 30b.
One ends of h to 40t are connected, and the carrier 40
The other ends of h to 40t are 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. Therefore, bases 70, 70a are movably disposed on the rail members 66a, 66b.

A support plate 72 is erected at one end of the upper part of the base 70 . A mounting plate 7 is attached to the upper end of the support plate 72.
3, an upper positioning plate 74 is fixed thereto. The upper positioning plate 74 is parallel to the support member 62 of the parts dispensing device 16 and is connected to the conveyor 40a, which is connected to the arrangement mechanisms 30a and 30b.
Hole 7 coaxial with 40j to 40k and 40t
6a to 76j and 76k to 76t are formed through (see FIG. 3).

Further, a lower positioning plate 78 inclined with respect to the horizontal direction is detachably attached to the support plate 72. In this case, the press-fit attachment 68 of the press-fit device 68 is attached to the lower positioning plate 78.
Holes 80a to 80 whose respective spacing distances are selected corresponding to a to 68h and 68i to 68p.
h and 80i to 80p are formed. Then, the hole 76 of the upper positioning plate 74
a to 76h and holes 80a to 80h of the lower positioning plate 78 are flexible carriers 82a to 82
It communicates via h. 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 carriers 82i to 82p.

Further, a parts transport mechanism 83 according to this embodiment is mounted on the base 70. The parts transport mechanism 8
3 are gears 106a and 10 which are respectively pivoted.
rotating shafts 96a, 96b which are disposed rotatably by meshing the rotating shafts 96a, 96b with each other;
Arm members 108a and 108b fixed to b
Then, the valve guides 26a, 26b are aligned at a desired interval, and the arm members 108a, 1
chuck pockets 98a, 98b, which are holding members attached to the cylinder 1, and a cylinder 1, which is a rotating means that engages with the rotating shaft 96a and rotates the rotating shafts 96a, 96b integrally and in different directions.
00, a rack 102 and a pinion 104.

Therefore, to specifically explain the configuration of the parts transport mechanism 83, the parts transport mechanism 83 includes a movable main body 84, and the movable main body 84 is moved relative to the base 70 in the longitudinal direction of the base 64 and in the direction perpendicular to the longitudinal direction. It is attached so that it can be freely displaced. That is,
As shown in FIGS. 3 and 4, a first cylinder 86 is fixed to the base 70, and a moving base 88 is engaged with a cylinder rod 86a of the first cylinder 86. As shown in FIGS. In this case, guide bars 90a and 90b are provided on both sides of the first cylinder 86, respectively.
This moving table 88 is guided via 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, and rotating shafts 96a, 96b are rotatably mounted on the inclined upper surface portion 84a, and the chuck pocket 98a is attached via the rotating shafts 96a, 96b. , 98b are configured to be able to face the lower positioning plate 78 and the press-fitting device 68. That is, a cylinder 100 is fixed to the movable main body 84, and a rack 102 is engaged with a cylinder rod (not shown) extending from the cylinder 100. On the other hand, a pinion 104 that meshes with the rack 102 is provided on a rotating shaft 96b rotatably supported on the upper surface portion 84a, and a gear 106a having a relatively large diameter is attached to the rotating shafts 96a and 96b. , 106b are in mesh with each other. Further, arm members 108 are attached to the rotating shafts 96a and 96b.
a and 108b are externally fitted and engaged.

The arm members 108a and 108b are connected to the rotation shaft 9.
Cylindrical portions 110a and 110 that fit externally into 6a and 96b
b, and a mounting portion 112a that bulges toward one end side of the cylindrical portions 110a and 110b and has an inclined end surface.
112b. Then, the mounting portion 112
Fixing screws 113a, 113 on the end faces of a, 112b
chuck pockets 98a, 98b are removably attached via b and 113c, 113d.

The chuck pocket 98a has holes 80a to 80 when facing the lower positioning plate 78.
Holes 114a to 114h are formed coaxially with the hole 114a to 114h for fitting and accommodating the valve guide 26a which is supplied through the holes 80a to 80h. 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 114h are provided at each end.
16h is in communication (see Figure 5). moreover,
Holes 118a to 118h are formed through the chuck pocket 98a so as to be orthogonal 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 Figures 5 and 6). The lock pins 120a to 1
A small diameter portion 122a extends outward at one end of 20h.
In addition to forming grooves 124a to 122h, circumferential grooves 124a to 124h are carved on the outer periphery thereof. Coil springs 126a to 126 are fitted onto the small diameter portions 122a to 122h.
h, close one end of the holes 118a to 118h, and insert the plate 1 into the chuck pocket 98a.
Fix 28. Therefore, the lock pins 120a to 120h are connected to the coil springs 126a to 120h.
Through the elastic force of 6h, the holes 118a to 118h
Projects outward from the other end. Therefore, a rod-shaped cam member 130 is slidably disposed in the chuck pocket 98a so as to engage with the outwardly projecting ends of the lock pins 120a to 120h.

That is, fitting portions 132a and 132b each having a bent shape over a predetermined length are formed at both ends of the chuck pocket 98a, and the fitting portions 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 136h are formed on the outer peripheral surface of the cam member 130 at desired intervals. In this case, the groove 136
a to 136h correspond to the spacing between the holes 118a to 118h of the chuck pocket 98a, and the surface portions 138a to 138h defining the lower side of the grooves 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 chuck pocket 98a and the chuck pocket 98a. For this reason, the cam member 130
are pulled downward through the elastic force of the coil spring 140, and the respective grooves 136a to 13
6h communicates with the holes 118a to 118h.

Furthermore, one end portion of mounting plates 142a, 142b is fixed to the upper surface portion 84a of the movable main body 84 at positions symmetrical about the rotation axis 96a, and the other bent end portions of the mounting plates 142a, 142b are 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, so that when the chuck pocket 98a faces the lower positioning plate 78 under rotation of the rotating shaft 96a, A roller 139 supported by the cam surface 14 of the fixed cam member 144a
6a, while the chuck pocket 98
Similarly, when the roller 139 faces the press-fitting device 68, the roller 139 touches the cam surface 14 of the fixed cam member 144b.
6b.

The other chuck pocket 98b is constructed in the same manner as the chuck pocket 98a described above, and detailed explanation thereof will be omitted.

Although the parts transport mechanism 83 according to this embodiment has been described above, another parts transport mechanism 83a is similarly mounted on the base 70a. In this case, the parts transport mechanism 83a is the arrangement mechanism 32.
The valve guides that are aligned and conveyed through the valve guides 32a and 32b are supplied to another press-fitting device (not shown), and the lower positioning plate 78 and chuck pockets 98a, 98b described above are replaced in accordance with the press-fitting device. Since the other configurations are the same as those of the parts transport mechanism 83, a detailed explanation thereof will be omitted.

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

In the automatic supply device 10, the parts transport mechanism 83
and 83a are provided for use in press-fitting predetermined valve guides into two different types of cylinder heads; in this case, a four-cylinder, four-valve engine (not shown) is configured via the parts conveying mechanism 83. Valve guide 2 on the cylinder head
The operation of feeding the valve guides 26a, 26b to the press-fitting device 68 that press-fits the valve guides 6a, 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.
Under the driving action of the parts feeders 22a and 22b, the arrangement mechanism 30 is
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 carrier 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. The distal end thereof is brought into contact with the locking member 52. Therefore, the carrier 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 slides and enters the carrier 40a that communicates with the groove 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 transport body 40b.

As described above, as the distribution member 46 is displaced in the direction of arrow A, the valve guide 26a housed in the fitting groove 48 is sequentially moved through the openings 60a to 60h of the distribution plate 56 to the groove 38a of the plate body 36.
38h to 38h, the valve guide 26a reaches the respective carriers 40a to 40h, passes through the carriers 40a to 40h, reaches the support member 62 side, and reaches the upper side facing the support member 62. It is supplied by falling into the holes 76a to 76h of the positioning plate 74.

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 into the fitting grooves 48, and eight new valve guides 26a are held within the fitting grooves 48.

On the other hand, from the parts feeder 22b to the carrier 28b
The valve guide 26b supplied to the arrangement mechanism 30b via the arrangement mechanism 30a is connected to the conveyor 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 carrier 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 chuck pocket 98a facing the chuck pocket 78 fall into the holes 114a to 114h. At this time, as shown in FIGS. 5 and 6, 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.
It is in contact with 20h. 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 chuck pocket 98b.

In this way, the chuck pockets 98a, 98b
After the valve guides 26a and 26b are fitted and fed inside, the cylinder 100 is driven to displace the rack 102 in the direction of arrow B. Therefore, as shown in FIG. 4, the rotating shaft 96b rotates in the direction of the arrow via the pinion 104 that meshes with the rack 102, and the gears 106a, 106b are connected to the rotating shaft 96b.
The rotating shaft 96a that meshes with the rotating shaft 96a rotates in the direction of the arrow. Therefore, the arm members 108a and 108b rotate in different directions, and the arm members 108a and 108b rotate in different directions.
A chuck pocket 98a fixed to the mounting portion 112a of the press-fitting device 68 faces the press-fitting device 68. At this time, when the chuck pocket 98a rotates in the direction of the arrow via the arm member 108a, the roller 139 of the cam member 130 provided on the chuck pocket 98a is displaced along the cam surface 146a and separated from the fixed cam member 144a. As a result, the cam member 130 is connected to the coil spring 14.
The flange portion 13 descends through an elastic force of 0.
4 is placed in contact with the chuck pocket 98a. Therefore, the groove 13 of the cam member 130
6a to 136h communicate with the holes 118a to 118h, and the lock pins 120a to 120h inserted into the holes 118a to 118h have their distal ends connected to the grooves 136a to 118h through the elastic force of the coil springs 126a to 126h. 136
Enter h. As a result, the circumferential grooves 124a to 124 formed in the lock pins 120a to 120h
h engages with each valve guide 26a, and the valve guides 26a are fixed in the holes 114a to 114h via the locking pins 120a to 120h.

Furthermore, when the rack 102 is displaced in the direction of arrow B under the driving action of the cylinder 100 and the rotating shaft 96a is rotated, the roller 139 supported by the cam member 130 is moved against the cam surface 144 of the fixed cam member 144b.
b. 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 groove portions 136a to 136h of the cam member 130 lock the lock pins 120a to 120h into the holes 118a to 11.
Press within 8h. As a result, the lock pin 1
20a to 120h circumferential grooves 124a to 124h
The valve guides 26a are loosely fitted into each valve guide 26a, and the fixing action of the valve guides 26a is released.

As described above, as the rotating shaft 96b rotates under the driving action of the cylinder 100, the arm member 108b attached to the rotating shaft 96b rotates.
The chuck pocket 98b is connected to the press-fitting device 68 through the
Face to 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 chuck pockets 98a and 98b are displaced integrally with the movable main body 84 in the direction of arrow C, and the valve guides 26a arranged and housed in the chuck pocket 98a are delivered to the attachments 68a to 68h of the press-fitting device 68.

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 this time, the press-fitting device 68 rotates so that the press-fitting attachments 68i to 68p of the press-fitting device 68 face the chuck pocket 98b. Further, as described above, under the action of the second cylinder 92, the valve guide 26b held in the chuck pocket 98b is inserted into the press-fit attachment 68.
After feeding from i to 68p, the movable main body 84 is separated from the press-fitting device 68.

In this way, the respective chuck pockets 98a,
Valve guide 26a from 98b to press-fitting device 68,
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 a direction opposite to the arrow, and furthermore, a rotating shaft 96b on which this pinion 104 is provided and a rotating shaft 9 that engages with this via respective gears 106a and 106b.
6a rotates in the opposite direction to the arrow. Therefore,
An arm member 108 is attached to each rotating shaft 96a, 96b.
The chuck pockets 98a and 98b, which are engaged via the lower positioning plates 7a and 108b,
The arrangement mechanism 30 is pivoted to a position facing the arrangement mechanism 30.
The valve guides 26a and 26b are placed on standby to receive the valve guides 26a and 26b that are conveyed through the valves a and 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).

The above is about the work of sending out the valve guides 26a and 26b, which are conveyed through the arrangement mechanisms 30a and 30b that constitute the parts distribution device 16, to the press-in device 68 through the parts conveyance mechanism 83 incorporated in the automatic supply device 10. Although explained, other arrangement mechanisms 32a, 32b and parts conveyance mechanism 83
It will be easily understood that the operation of feeding the valve guide to the press-fitting device (not shown) via a is performed in the same manner.

In this case, according to this embodiment, for example, the valve guides 26a and 26b fed from the parts feeders 22a and 22b can be reliably and quickly inserted into the press-fitting attachments 68a to 6 of the press-fitting device 68.
It can be supplied for 8 hours. That is, as described above, the arrangement mechanism 30a constituting the parts distribution device 16 is disposed so as to be oriented vertically and inclined, and is transported so as to fall from the parts feeder 22a via the transport body 28a. After the valve guides 26a are aligned via the arrangement mechanism 30a, they are further aligned with the respective carriers 40a to 40.
i and is supplied to the upper positioning plate 74 in such a way as to fall through it. Furthermore, the valve guide 26 sent into the upper positioning plate 74
After being transported to the lower positioning plate 78 located below the upper positioning plate 74 via the respective transport bodies 82a to 82h, the chuck pocket 98 constituting the parts transport mechanism 83 is transferred.
It falls and is stored in a. In this way, in order to transport the valve guide 26a so as to fall from the parts feeder 22a to the parts transport mechanism 83, the valve guide 26a is
It is possible to reliably supply the parts to the parts transport mechanism 83 without causing transport defects of (a).

Furthermore, the valve guide 26a is held by the chuck pocket 98a, and the arm member 108a is rotated under the driving action of the cylinder 100, so that the chuck pocket 98a faces the press-fitting device 68. Then,
Under the driving action of the second cylinder 92, the chuck pocket 98a is displaced toward the press-fitting device 68 to supply the respective valve guides 26a to the press-fitting attachments 68a to 68h. in this way,
After positioning and holding the valve guide 26a, which is supplied by falling from the lower positioning plate 78, in the chuck pocket 98a, the chuck pocket 98a
Simply by swinging the valve guide 26a, the axis of the valve guide 26a is directed horizontally.
6a can face the press-fitting device 68.
For this reason, it is possible to shorten the conveyance path of the valve guide 26a as much as possible without requiring a long parts conveyance path as in the past. In particular, even if the valve guide 26a is a cylindrical part, the parts transport mechanism 83 can transport the valve guide 26a extremely efficiently from the parts feeder 22a to the press-fitting device 68. As a result, the valve guides 26a, 26 are inserted into the cylinder head (not shown) through the press-fitting device 68.
The effect that b can be quickly press-fitted is obtained.

Moreover, in this embodiment, the rotating shafts 96a, 96b
Because the chuck pockets 98a and 98b are individually swung through the rotating shaft 96
The rotational load acting on a and 96b is reduced at once. Furthermore, the two rotating shafts 96a and 96b are integrally rotationally driven by a single cylinder 100 that constitutes a rotating means. Thereby, the number of drive sources such as cylinders does not increase, and the structure of the entire parts transport mechanism 83 can be easily simplified.

[Effects of the Invention] As described above, according to the present invention, a holding member that holds a predetermined number of parts spaced apart from each other at a desired interval,
It is configured to be movable between a parts intake position for dropping and storing parts conveyed via a parts feeder and the like, and a parts delivery position for sending out the parts to a loading device. Therefore, it is sufficient to feed the parts by dropping them from the parts feeder to the holding member, and even if the parts have various shapes such as a rod shape, they can be reliably conveyed to the holding member. Moreover, after positioning and holding the part with the holding member, the part can be brought to face the loading device simply by swinging and displacing the holding member. Therefore, it is not necessary to provide a considerably long conveyance path as in the past, and parts can be conveyed from the parts feeder to the loading device in a short time, and space can be saved all at once. As a result, parts can be supplied to the loading device reliably and quickly, and the loading operation of the parts can be carried out extremely efficiently.

Furthermore, the first and second holding members can be integrally oscillated through a single rotation means, which particularly effectively reduces the number of drive sources and facilitates the structure of the entire parts conveyance mechanism. This has the advantage of being simple and compact.

Furthermore, by replacing the holding members in accordance with the parts loading site, it becomes possible to easily apply the present invention to various different workpieces, and a versatile parts transport mechanism can be obtained.

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 can be made 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 supply device incorporating a parts conveyance 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 perspective views of the parts conveyance mechanism according to the present invention,
FIG. 5 is a partially omitted side view of the chuck pocket constituting the mechanism of the present invention, and FIG. 6 is a partially plan view of the chuck pocket shown in FIG. 5. 10... Automatic supply device, 16... Parts distribution device,
22a, 22b, 24a, 24b...Parts feeder, 26a, 26b...Valve guide, 30a, 3
0b, 32a, 32b...Array mechanism, 68...Press-fitting device, 68a-68p...Press-fitting attachment, 70
...Base, 74...Upper positioning plate, 78...
Lower positioning plate, 83, 83a...Parts conveyance mechanism, 84...Movable body, 96a, 96b...Rotating shaft, 98a, 98b...Chuck pocket, 108
a, 108b...Arm member.

Claims (1)

[Scope of Claims] 1. A parts transport mechanism for transporting a predetermined number of rod-shaped parts from a parts receiving position inclined with respect to a horizontal plane to a parts delivery position provided along a substantially vertical plane, each comprising: first and second rotating shafts that are rotatably disposed by meshing gears that are shaft-mounted to each other; first and second arm members that are fixed to the first and second rotating shafts; The rod-shaped parts are aligned at a desired interval, and the first and second holding members attached to the first and second arm members are engaged with one of the rotating shafts, and the first and second holding members A parts conveyance mechanism characterized by comprising a rotating means that rotates two rotating shafts integrally and in different directions so that the first and second holding members can face the parts receiving position and the parts delivering position. .