JPH01316140A - Exchanging device for parts distributing jig - Google Patents

Abstract

PURPOSE:To effectively house the title device in a narrow space by constructing it in a way that a plurality of parts distributing jigs are radially housed for holders capable of freely rotating, the above holders are rotated every predetermined angle to automatically supply parts distributing jigs corresponding to required works to a parts supplying device. CONSTITUTION:An exchanging device 18 is provided at the side of a parts supplying device. A turn table 106 as a holder is held thereto and housing portions 108a-108d are formed with radially projecting outward respectively thereto. A rail member 110a corresponding to a holding rail 46a fixed to a moving desk for constructing the parts supplying device is fixed to the housing portion 108a and also a rail member corresponding to the holding rail of the above moving desk at the upon portion of the rail member 110a via a strut 112a. A clamp means close to the rail member is provided in the housing portion 108a so that a parts distributing jig can be held in the housing portion 108a. Thus, the parts distributing jig is carried to the housing portions 108a-108d by a conveying means 116.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a parts dispensing jig exchange device, and more particularly, for example, a valve seat to be press-fitted into a cylinder head constituting an internal combustion engine is A plurality of parts distributing jigs that are separated by a predetermined interval and delivered to a press-fitting device, etc. according to the type of cylinder head are stored in a narrow space, and the desired parts distributing jig is automatically exchanged to accommodate a wide variety of different cylinder models. The present invention relates to a parts dispensing jig exchange device configured to be compatible with a head.

[Background of the Invention] For example, in order to mount an inlet valve or an extreme valve to a cylinder head constituting an internal combustion engine, a valve seat and a valve guide are coaxially incorporated into the cylinder head. In this case, when assembling the valve seat to the cylinder head, a press-fit device is used that has a plurality of press-fit bars spaced apart corresponding to the spacing between the respective valve seat loading sections of the cylinder head. That is, after a valve seat is supplied to each press-fitting bar from a parts supply device, the valve seat is press-fitted into each valve seat loading portion of the cylinder head by moving the press-fitting device close to the cylinder head side.

By the way, the size, number, and spacing of the valve seats that are assembled into the cylinder head differ depending on the type of cylinder head, and for this reason, the parts supply device that feeds the valve seats to the press-fitting device is limited to one type of cylinder head. is dedicated to However, many different types of engines are usually assembled in a factory, and preparing multiple parts supply devices for the cylinder heads that make up each engine takes up storage space and space for the entire device. It is a matter of economic efficiency and cannot be tolerated.

Therefore, the present applicant vertically aligns the valve seats that are dropped and fed via a parts feeder or the like, and then uses a parts distribution jig to arrange the valve seats at predetermined intervals between valve seat loading sections. Japanese Patent Laid-Open No. 60-228 proposes a parts feeding device in which the parts dispensing jig is configured to be able to be positioned and held at the same time as to be detachable from the main body of the device.
No. 033).

As a result, when the type of cylinder head is different, it is only necessary to replace the parts dispensing jig corresponding to each cylinder head with the desired parts dispensing jig.In particular, it is possible to use a parts feeding device suitable for high-mix, low-volume production. The effect is that it can be provided.

[Object of the Invention] The present invention relates to an exchange device for automatically exchanging parts dispensing jigs in this type of parts supply device, and in which a plurality of parts distributing jigs are attached to a rotatable holder. The holder is accommodated radially and rotated by a predetermined angle to automatically feed a parts dispensing jig corresponding to a desired workpiece to a parts supply device. It is an object of the present invention to provide a parts dispensing jig exchange device that can be effectively accommodated in a parts distribution jig and is particularly suitable for small-volume production of multiple models.

[Means for Achieving the Object] In order to achieve the above object, the present invention automatically provides a parts feeding device with a parts dispensing jig that positions a plurality of parts at predetermined intervals corresponding to a loading site. A replacement device for replacement, comprising a holder rotatable under the action of an actuator, and a plurality of parts distributing jig guide support rails provided in the parts supply device and arranged radially on the holder. and a rail member storing a parts dispensing jig in each rail member, and rotating the holder by a predetermined angle under the action of an actuator so that the rail member containing the desired parts distributing jig corresponds to the support rail, The present invention is characterized in that the desired parts distribution jig is configured to be sent to a parts supply device via the rail member and the support rail.

Further, the present invention provides a conveyance means for transferring the parts distribution jig to a rail member disposed on the holder and a support rail disposed on the parts supply device, and the conveyance means is moved forward and backward under the action of the first actuator. and an engaging member rotatable under the action of the second actuator, the parts dispensing jig is conveyed via the engaging member under the action of the first actuator, and the part distributing jig is conveyed through the engaging member under the action of the second actuator. The present invention is characterized in that the engagement member can be rotated by a predetermined angle to release the engagement member from the parts dispensing jig.

[Embodiments] Next, preferred embodiments of the parts dispensing jig changing device according to the present invention in relation to an automatic parts assembly system incorporating the same will be listed and explained in detail below with reference to the accompanying drawings. .

In FIG. 1, reference numeral 10 indicates an automatic parts assembly system. This system 10 includes a valve seat 12a for an extreme valve and a valve seat 12 for an in-left valve.
a part conveying device 14 that sends out the valves 12a and 12a, 12b and 12a, 12a and 1b, respectively, directed vertically downward;
a parts supply device 16 that removably attaches parts distribution jigs 14a to 14d for positioning and holding parts 2b at desired intervals, and parts distribution jigs 14a to 14.
The parts dispensing jig exchange device 18 according to this embodiment that holds the parts d radially, and the cylinder head 2 after receiving the valve seats 12a and 12b from the parts supply device 16.
It is basically composed of a press-fitting device 22 for press-fitting the valve seats 12a and 12b into the valve seats 12a and 12b. Note that another press-fitting device (not shown) is provided on the opposite side of the cylinder head 20 from the press-fitting device 22, and this press-fitting device is configured to allow the press-fitting device 22 to fit the valve seats 12a, 1 into the cylinder head 20.
When press-fitting the valve guide 2b, it also functions to press-fit a valve guide (not shown) into the cylinder head 20 at the same time.

As shown in FIG. 2, the parts conveyance device 14 includes two parts feeders 24a, which are arranged substantially above the work floor.
24b, and a plurality of valve seats 12a and 12b are housed in the parts feeders 24a and 24b. Each parts feeder 24a, 24b is provided with a first conveyance path 26a, 26b that is inclined with respect to the horizontal direction,
Ends of the first conveyance paths 26a, 26b are formed in the support member 28 and are connected to second conveyance paths 30a, 30 oriented in the vertical direction.
Connects to b. The support member 28 has the second conveyance path 30a.
A stopper member 32a132b is swingably supported in order to engage with the valve seats h12a and 12b sent out to the valve seats h130b and prevent the valve seats h12a and 12b from falling unnecessarily. In this case, the stopper member 32a,
32b has its lower end inserted into the second conveyance paths 30a, 30b via elastic bodies 33a, 33b, respectively, and cylinders 34a, 34b are attached to the outer side of the support member 28.
The piston rod 36a136b of the stopper member 3
It engages with the end faces of 2a and 32b.

Next, the parts supply device 16 is disposed below the support member 28 . The parts supply device 16 has a base 38, on which the valve seat 12a is mounted.

The cylinder 40 and guide bars 42a and 42b are fixedly installed extending in a direction (direction of arrow B) perpendicular to the press-fitting direction (direction of the arrow in FIG. 1) of the cylinder 40 and the guide bars 42a and 42b. A moving table 44 is attached to a piston rod (not shown) of the cylinder 400, and a pair of vertically parallel support rails 46a and 46b are fixed to the moving table 44. As shown in FIGS. 3 and 4, a cylinder 48 is attached to the movable table 44 in the direction of the arrow.
A locking member 52 having a circumferential groove defined in its outer circumferential portion is locked to the end of the cylinder head 50 that protrudes toward the second side. Further, a bracket 54 is attached to the movable table 44 and can move forward and backward in the direction of the arrow under the action of the cylinder 53, and positioning pins 56a and 56b that protrude toward the press-fitting device 22 side are implanted in the bracket 54 in the same way as the piston rod 50. At the same time, the cylinders 58a and 58b are fixed to the bracket 54.

Piston rods 60a and 60b extending from the cylinders 58a and 58b include arms 62a having an abbreviated shape;
One end of the arm 62b is attached to the arm 62a, 62b.
The bent portion is supported by the bracket 54, and recesses 64a and 64b are defined at the other end.

Parts distribution jigs 14a to 1 are provided in the parts supply device 16.
4d is detachably attached. In this case, the parts distributing jigs 14a to 14d are constructed in the same way, and the parts distributing jig 14a will be explained in detail below.
The other parts distributing jigs 14b to 14d are given the same reference numerals and detailed explanation thereof will be omitted.

That is, the parts dispensing jig 14a is supported by the support rule 46.
It has a movable body 70 that engages with the movable bodies 70 and 46b, and a chute portion 70 that is oriented vertically to the movable body 70. 2a, 72b
is provided. As shown in FIG. 7, the chute section 7
2a and 72b are the second transport paths 30a of the parts transport device 14
, 30b are supplied dropwise from the valve seats 12a, 12.
b communicates with passages 74a and 74b for vertically aligning them. Further, each of the chute portions 72a and 72b is cut out horizontally at a predetermined height position to form a passage 74a.
, 74b are formed with openings 76a to 76d and 78a to 78d. And the movable main body 70
Extrusion plates 82a and 82b are mounted on both sides of the plate so as to be movable in the horizontal direction. The extrusion plates 82a, 82
Openings 76 of chute portions 72a and 72b are shown in b.
4 entering a to 76d and 78a to 78d, respectively
Two pushing pieces 84a and 84b are provided, and in this case, rods 86a and 86b are fixed to the pushing plates 1-82a and 82b, extending in the vertical direction. Further, a locking arm 87 whose end face is directed vertically downward is provided on one side of the movable body 70, and positioning pins 56a, 56 of the parts supply device 16 are provided on the other side of the movable body 70.
A hole (not shown) into which b fits is bored (see FIG. 3).

Therefore, a distribution plate 88 is arranged on the movable body 70. A column portion 90 is provided approximately in the center of the distribution plate 88 and is fitted into the movable body 70 and projects outward from the end of the movable body 70.
A recess 92 is formed into which the locking member 52 constituting the locking member 52 is fitted. The distribution plate 88 has openings 94a194b protruding above and below the columnar part 80, and the rods 94a and 94b pass through the movable body 70 and are exposed to the outside, and have coil springs 96a at their ends. , 96
Interpose b. Furthermore, are there chute sections on both sides of the distribution plate 88? 2a, 72b openings 76a to 76d
and a valve seat 12a communicating with 78a to 78d;
Engagement grooves 98a, 98a and 9 for accommodating 12b
A plurality of 8b and 98b are formed at predetermined intervals (see FIG. 7). Note that the respective engagement grooves 98a and 98b
is provided with stopper means (not shown) capable of holding the hub Bt bushings 12a, 12b.

The exchange device 18 according to this embodiment is disposed on the side of the parts supply device 16 configured in this manner.

That is, as shown in FIG. 2, the exchange device 18 has a base 100, a rotational drive source 102 is attached to the base 100, and a rotational drive source 102 extending vertically upward from the rotational drive source 102 is attached to the base 100. A turntable 106 as a holder is supported on the drive shaft 104. As shown in FIG.
A storage section 108a to a fourth storage section 108d are formed. A rail member 110a corresponding to a support rail 46a fixed to a movable table 44 constituting the parts supply device 16 is fixed to the first storage section 108a, and a support rail 110a is fixed to the first storage section 108a.
A rail member 11 located above the rail member 110a and corresponding to the support rail 46b of the moving platform 44 via the rail member 12a.
4a is provided. Further, if a clamping means (not shown) is provided in the first storage part 108a in the vicinity of the rail member 114a, the parts distribution jig 1 can be placed in the first storage part 108a.
4a can be maintained, which is suitable.

On the other hand, the second storage section 108b to the fourth storage section 108d are configured in the same manner as the first storage section 108a described above, and the same constituent elements are designated by the same reference numerals with b to d added thereto. Detailed explanation will be omitted.

Next, the parts distribution jigs 14a to 14d held in the first storage part 108a to the fourth storage part 108d are sent to the parts supply device 16, or the parts are delivered from the parts supply device 16 to the respective storage parts 108a to 108d. The conveying means 1 is used to convey the dispensing jigs 14a to 14d.
16 are provided.

As shown in FIGS. 5 and 6, the conveying means 116
includes a cylinder 118 , which is fixedly mounted on the base 38 parallel to the cylinder 40 of the parts supply device 16 . An engagement member 122 is fixed to the tip of a long piston rod 120 extending from the cylinder 118, and the engagement member 122 has a substantially cylindrical shape and has a circumferential groove 124 formed on its outer circumference. There is. Furthermore, the cylinder 11
A guide bar 126 is disposed between the turntable 1 and the movable table 44, and in this case, the guide bar 126
The bearing member 127a extends to the lower part of the bearing member 127a at both ends thereof.

It is rotatably supported by 127b. In this case, a cylinder 129 is engaged with the end of the guide bar 126 on the turntable 106 side via a swing arm 128.
Under the driving action of this cylinder 129, the guide bar 12
6 rotates by a predetermined angle.

A long key member 130 is implanted along the axial direction on the outer circumference of the guide bar 126, and a hook member 132 moves back and forth in the axial direction of the guide bar 126 through this key member 130. It is fitted externally so that it can rotate integrally. Both ends of the hook member 132 have large diameter portions 134a that are engaged with locking arms 87 provided on the parts distribution jigs 14a to 14d.

134b is formed. At that time, the large diameter portion 134a.

134b has flat surfaces 136a, 136. to eliminate engagement with the locking arm 87. form b. Furthermore, a fan-shaped claw portion 138 is provided on the outer peripheral portion of the hook member 132 and protrudes radially outward and fits into the circumferential groove 124 of the engaging member 122.

On the other hand, a plurality of first press-fitting bars 140a are arranged at one side of the press-fitting device 22 and spaced apart from each other by a predetermined distance in order to press-fit the valve seat 12a into the cylinder head 20.
A plurality of first press-fit bars 140b for press-fitting the valve seat 12b into the cylinder head 20 are provided at positions offset by 180 degrees from the first press-fit bars 140a. Further, the press-fit device 22 includes second press-fit bars 142a, 142b, third press-fit bars 144a, which are similarly offset by 180 degrees and correspond to other cylinder heads (not shown).
144b and fourth press-fit bars 146a, 146b
is installed.

The parts automatic assembly system incorporating the parts distribution jig exchange device according to this embodiment is basically configured as described above, and its operation and effects will be explained next.

First, the moving table 44 is displaced in the direction of arrow B under the driving action of the cylinder 40 and under the guiding action of the guide bars 42a and 42b, and the parts distributing jig 1 mounted on the moving table 44 is moved.
The respective chute portions 72a172b of 4a are supported by the support member 28.
Position against. At that time, the second
Parts feeders 24a, 24 are provided on the conveyance paths 30a, 30b.
From b to valve seat 12a112b is the first (general passage 26
a, 26b, and the stopper member 32
Valve seats 12a, 1 with a and 32b located at the lowest position
2b to prevent each valve seat 12a, 12b from falling.

Therefore, by driving the cylinders 34a and 34b, the piston rods 36a and 36b are used to stop the stopper members 32a and 32b.
When pressed, the stopper member 32a132b swings against the elastic force of the elastic bodies 33a, 33b, and the valve seats 12a, 12b fall from the seat portion 72a172b into the passages 74a, 74b and are aligned ( (See Figure 7).

Next, in FIG. 4, when the piston rods 60a and 60b are displaced inwardly under the driving action of the cylinders 58a and 158b, the tips of the arms 62a and 62b that are engaged with the piston rods are displaced in a direction toward each other. Therefore, the extrusion play (82a, 8) is made via the rods 86a, 86b that fit into the recesses 64a, 64b of the arms 62a, 62b.
2b moves toward the distribution plate 88 side. At that time, the extrusion plate 82a.

Valve seams 1-12a, 12b are provided with push pieces 84a, 84b provided in openings 76a to 76d and 78a to 78d, respectively, and each push piece 84a, 84b is arranged in passage 74a, '74b. Press. Therefore, valve seats 12a and 12b are the respective engagement grooves 9.
8a and 98b, and eight valve seats 12 each.
a %' 12 b is positioned apart from the cylinder head 20 .

Then, the cylinders 58a and 58b are driven in the opposite direction, and the arms 62a1 and 62b are displaced in the direction away from each other, thereby moving the extrusion plates 82a and 82b outward. Further, the cylinder 40 is driven to displace the movable table 44 in a predetermined direction, and the valve seat H2a disposed in the engagement groove 98a of the distribution plate 88 is moved to the first valve seat H2a of the press-fitting device 22.
It is positioned relative to the compression bar 140a.

In this state, the cylinder 48 is driven to displace the cylinder rod 50 toward the press-fitting device 22, and the distribution plate 88 held by the ζ locking member 52 is moved to the first press-fitting bar 140a.
side to supply the valve seat 1-12a to the first press-fitting bar 1408. Next, after driving the cylinder 48 to move the distribution plate 88 out of the press-fitting device 22, the cylinder 40 is driven to move the movable table 44 in the opposite direction, while rotating the press-fitting device 22 by 180° to move the distribution plate 88 out of the press-fitting device 22. 1
The press-fit bar 140b is inserted into the engagement groove 98 of the distribution plate 88.
position on the valve seat 12b disposed at b. Further, the cylinder 48 is driven, and the valve seat 1 is
2a, the valve seat 1-12b is inserted into the first press-fitting bar 14.
Supply to 0b.

At this time, in the press-fit device 22, the first press-fit bar 140a faces the cylinder head 20, and by moving the first press-fit bar 140a forward and backward, the valve seat 12
a is press-fitted into a predetermined portion of the cylinder head 20.

Next, after rotating the press-fitting device 22 by 180 degrees, the valve seat 12b attached to the first compression bar 140b is press-fitted into the cylinder head 20.

In this way, the valve seats 12a and 12b are press-fitted into the cylinder head 20 of a single model. However, when press-fitting a valve seat (not shown) into a cylinder head different from the cylinder head 20, the press-fitting work is performed. In the device 22, for example, the second press-fitting bar 142a,
142b, and the parts supply device 16 is equipped with, for example, the parts distribution jig 14b.

That is, the bracket 54 is moved to the parts distributing jig 14'a under the driving action of the cylinder 53 provided on the moving table 44.
When the arms 62a, 62 are displaced in the direction away from the
b is separated from the rods 86a, 86b, the positioning pins 56a, 56b are removed from the holes (not shown) of the movable body 70 constituting the parts distribution jig 14a, and the holding action of the parts distribution jig 14a is stopped. It will be canceled.

Therefore, when the cylinder 118 constituting the conveying means 116 is driven to displace the piston rod 120 inwardly, the claw portion fits into the circumferential groove 124 of the engaging member 122 provided at the tip of the piston rod 120. The hook member 132 moves toward the movable table 44 via 138. Then, the hook member 132 is connected to the locking arm 8 of the parts distribution jig 14a.
After stopping the driving of the cylinder 118 at a position corresponding to 7, the cylinder 129 is driven to displace the swing arm 128 and rotate the guide bar 126 attached to the swing arm 128 by a predetermined angle. Therefore, the hook member 132 that fits into the guide bar 126 via the key member 130 similarly rotates, and the claw portion 138 engages the engaging member 12.
The large diameter portion 134a is fitted into the circumferential groove 124 of No. 2, 1
The flat parts 136a and 136b of 34b are the locking arms 87
(See Figure 8).

Therefore, by driving the cylinder 118, the piston rod 12
0 toward the turntable 106, the hook member 132 moves toward the turntable 106 along the guide bar 126 via the engagement member 122. At this time, the end of the large diameter portion 134b comes into contact with the locking arm 87, and the parts distribution jig 14a provided with the locking arm 87 moves toward the turntable 106. That is, the parts distributing jig 14a moves from the support rail 46a146b fixed to the moving table 44 to the first storage section 10 of the exchanging device 18.
Rail members 110a and 114a provided on 8a
This first
It will be held in the accommodating part 108a.

Further, by driving the cylinder 129 and rotating the guide bar 126 by a predetermined angle while the swinging arm 128 is swinging, the flat surfaces 136a and 136b of the hook member 132 are moved vertically upward, that is, the locking arm 87 is rotated. Position it so that it is parallel to the end surface (see Figure A#). Next, the rotational drive source 1
02, the turntable 106 is rotated 90 degrees via the rotary drive shaft 104, and the rail members 110b and 114b of the second storage section 108b are arranged on the same line as the support rails 46a and 46b of the movable table 44. Therefore, as described above, the hook member 1 is operated under the driving action of the cylinder 129.
32 by a predetermined angle, this hook member 1320
Parts distribution jig 14b between large diameter parts 134a and 134b
In a state where the locking arm 87 provided in is fitted,
The cylinder 118 is driven to carry the parts distribution jig 14b integrally with the hook member 132 onto the support rails 46a and 46b of the moving table 44.

The parts distribution jig 14b reaches a predetermined position on the movable table 44, and the locking member 52 is fitted into the recess 92 of the columnar section 90 provided on the parts distribution jig 14b. and,
Under the driving action of the cylinder 53, the bracket 54 is displaced toward the parts distribution jig 14b, and the positioning pins 56a, 56
b into the holes (not shown) of the parts distribution jig 14b, and the recesses 64 of the arms 62a, 62b.
The rods 86 of the extruded feet 82a and 82b are attached to a and 64b.
a and 86b.

After completing the preparatory work in this way, a new nozzle sheet (not shown) is supplied from a parts feeder (not shown) to the chutes 72a, 72b that constitute the parts distribution jig 14b, and the same process as described above is carried out. This new valve seat may be press-fitted into a new cylinder head (not shown).

In this case, in the exchange device 18, the first storage section 108
Four types of parts distribution jig 1 are installed in the fourth storage section a to the fourth storage section 108d.
4a to 14d and when using a cylinder head of a different model, first, the turntable 106 is rotated under the driving action of the rotational drive source 102, and the parts dispensing jig 1
4a to 14d are determined. Next, the conveyance means 1
16 to carry out and carry in desired parts distribution jigs 14a to 14d while the hook member 132 moves forward, backward, and rotates. Therefore, a plurality of parts distributing jigs 1
To provide an exchange device 18 that can selectively feed parts 4a to 14d to a parts supply device 16, efficiently and automatically perform the entire jig exchange operation, and is especially suitable for a multi-model, low-volume production process. The effect is that it can be done.

Moreover, since the four parts distribution jigs 14a to 14d are arranged radially with respect to the turntable 106, it is possible to reduce the space occupied by the entire exchange device 18 as much as possible, and as a result, the work area This brings to light the advantage of being able to effectively utilize the available space within.

[Effects of the Invention] As described above, according to the present invention, a parts distributing jig for positioning identical parts such as valve seats incorporated into a cylinder head at predetermined intervals can be used with a turntable or the like. A plurality of parts distributing jigs are accommodated in a radial pattern on a holder, a desired parts distributing jig is indexed under the rotational action of the holder, and the desired parts distributing jig is sent to a parts supplying device via a conveying means. ing.

In this way, multiple parts dispensing jigs can be selectively and automatically sent to the parts supply device, making parts assembly work more efficient, especially when assembling different parts on many types of workpieces. The effect is that it can be carried out in a targeted and automatic manner. Furthermore, by arranging a plurality of parts distributing jigs radially on the replacement lever, there is an advantage that the space occupied by the exchanging device itself can be reduced at once.

Furthermore, the conveying means has a hook member that moves back and forth between the exchange device and the parts supply device to engage with and convey the desired parts dispensing jig. It is configured such that it can be rotated by a predetermined angle to release the engagement state with the locking portion of the parts dispensing jig. For this reason,
An advantage is obtained that the transport work of the parts distributing jig can be easily and reliably carried out with a simple configuration.

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

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration explanatory diagram of a parts automatic assembly system incorporating a parts distribution jig exchange device according to the present invention; FIG. 2 is a schematic front view of the exchange device, parts supply device, and parts conveyance device; 4 is a partially sectional side view of the parts supply device, FIG. 4 is a partially sectional plan view of the parts supply device, FIG. 5 is a plan view of the exchange device, and FIG. 6 is a conveyance means constituting the exchange device. FIG. 7 is a partly omitted perspective view, FIG. 7 is a partially sectional front view when parts are supplied to the parts supply device, and FIGS. 8a and 8b are explanatory diagrams of the operation of the conveying means constituting the exchange device. 10... Parts automatic assembly system 12a, 12b... Valve seat 14... Parts conveyance device 148-14d... Parts distribution jig 16... Parts supply device 18... Exchange device 2
0... Cylinder head 22... Press-fitting device 10
6...Turntable 108a-108d...
Storage portions 114a, 114b...Rail member 116.
...Transporting means 132...Hook member FIG, 3 Pu8 FIG, 4 86a 86b FIG, 8 (a) (b)

Claims (2)

[Claims] (1) An exchange device for automatically exchanging a parts distribution jig for positioning a plurality of parts at a predetermined interval corresponding to a loading site with respect to a parts supply device, which is rotatable under the action of an actuator. It comprises a holder and a plurality of rail members arranged radially on the holder and corresponding to support rails for guiding a parts distribution jig provided in a parts supply device, and each rail member is provided with a parts distribution jig, respectively. The rail member housing the desired parts dispensing jig is rotated by a predetermined angle under the action of the actuator to correspond to the support rail, and the desired parts distributing jig is delivered to the parts via the rail member and the support rail. A changing device for a parts dispensing jig, characterized in that it is configured to feed to a supply device. (2) The apparatus according to claim 1, further comprising a transport means for transporting the parts distribution jig between a rail member arranged on the holder and a support rail arranged on the parts supply device, and the transport means an engaging member that moves forward and backward under the action of the second actuator and is rotatable under the action of the second actuator, and conveys the parts distribution jig via the engaging member under the action of the first actuator; A replacement device for a parts distribution jig, characterized in that the engagement member can be rotated by a predetermined angle under the action of an actuator to release the engagement member from the parts distribution jig.