JP3281538B2 - Clip mounting method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for attaching a clip, and more particularly, to a method for attaching a clip to a sleeve through which a valve stem is inserted, for example, in a process of assembling a cylinder head. The present invention relates to a method and an apparatus for easily and reliably mounting the apparatus.

[0002]

2. Description of the Related Art Conventionally, in a process of assembling a cylinder head,
First, a clip for preventing the sleeve from coming off is engaged with a groove formed on the outer periphery of the sleeve of the cylinder head. Next, after checking whether the clip is in a predetermined mounted state, The spring seat is mounted by inserting the sleeve through the hole of the seat. A spring is mounted around the valve stem, and the retainer is engaged with the end of the valve stem and assembled. At this time, the clip is manually attached to the sleeve.

[0003]

However, in the above-mentioned conventional clip mounting method, a dedicated worker is required, and there is a problem that a labor cost is increased and a production cost is increased. However, there is also a disadvantage that the manufacturing time is not improved.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and does not require any manpower, can reduce the production cost, and can shorten the manufacturing time. It is intended to provide the device.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a step of gripping a clip mounted on a mounting table by a gripping part provided in a clip mounting device, and a tapered outer periphery. Mounting a rod-shaped clip guide formed in a cylinder shape on a sleeve of a cylinder head, moving the grip portion to engage the clip with the clip guide, and a collet provided in a clip mounting device. Displacing the clip guide through the collet, pressing the clip to move the outer periphery of the clip guide, thereby mounting the clip in a groove formed on the outer periphery of the sleeve; and Removing the clip guide from the sleeve;
It is characterized by having.

According to the present invention, the clip mounted on the mounting table is gripped by the gripper, and the clip guide is mounted on the sleeve of the cylinder head by the collet. Next, the grip is moved to engage the clip gripped by the grip with the clip guide. Next, when the collet is displaced and the clip guide is inserted therein, the clip abuts on the end of the collet. Under the further displacement action of the collet, the clip moves around the outer periphery of the clip guide and is mounted in the groove of the sleeve. The clip guide is then removed from the sleeve by the collet.

In this case, before the step of gripping the clip, a step of continuously supplying the clip from the parts feeder to the passage, and a step of displacing the mounting table provided to be displaceable in a direction intersecting with the passage to one side. A first placing step of placing the clip on one of the placing portions by connecting the groove of the passage to one of the placing portions provided on the placing table, and displacing the placing table to the other. Holding the clips on the other mounting portion by holding the clip on the other mounting portion by communicating the groove of the passage with the other mounting portion provided on the mounting table. Since it can be gripped by the part and attached to the sleeve at the same time, the assembling time can be shortened, which is preferable.

Further, the present invention provides a clip guide having a grip portion, a rod-shaped outer periphery tapered, and a lower end formed with a hole or a recess for engaging a sleeve of a cylinder head. A collet configured to be slidable with respect to the outer periphery of the clip guide, the clip guide being detachable, biasing means for detaching the clip guide from the collet and engaging with the sleeve, the grip portion, the collet, Drive means for integrally displacing the biasing means in the vertical direction and the horizontal direction, wherein the clip is inserted into the clip guide engaged with the sleeve by the grip portion, and the clip is pressed by the collet. A clip is attached to the sleeve, and the clip guide is removed from the sleeve by the collet.

According to the present invention, first, the grip is brought close to the clip, and the clip is gripped by the grip. At the same time, the urging means is urged to engage the clip guide with the sleeve. Next, the gripper is moved by urging the driving means, and the clip guide is inserted through the clip. Next, the collet is displaced to slide the outer periphery of the clip guide, and the clip is pressed to mount the clip in a groove formed on the outer periphery of the sleeve. Then, the clip guide is attached to the collet, and the clip guide is removed from the sleeve.

In this case, the gripping portion, the collet, and the urging means are respectively provided two by two, and the respective gripping portions, the collet, and the urging means are displaced in a direction of approaching or separating from each other. Providing the means is preferable because the distance between the grip, the collet, and the urging means can be adjusted in accordance with the model of the cylinder head.

In this case, a passage communicating with the parts feeder and having a groove through which clips are continuously supplied is formed, and a mounting member is provided at an end of the passage and is displaceable in a direction crossing the passage. A mounting table, and two mounting portions provided on the mounting table and on which the clip is mounted, wherein when the mounting table is displaced to one side, the groove portion of the passage communicates with one of the mounting portions and the clip When the mounting table is displaced to the other, the groove of the passage communicates with the other mounting portion, and clips are mounted. When each clip is gripped by the grip portion, the clip is moved to 2 This can be grasped and attached to the sleeve at the same time, which is preferable.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A clip mounting apparatus according to the present invention is used for a cylinder head assembling apparatus 10. FIG. 1 shows a cylinder head assembling apparatus 10. The cylinder head assembling apparatus 10 includes a circular table 12, and the table 12 is configured to be rotatable in the direction of arrow A by a rotation driving source (not shown). As shown in FIG. 2, a cylinder head 14 is mounted on the table 12 and a positioning jig 16 is provided so as to be deviated at predetermined angles. As shown in FIG. 3, the positioning jig 16 has an upper surface 16 a inclined downward toward the edge of the table 12, and is fixed to the table 12 with screws 18. Holes 22a and 22b coaxially communicating with holes 20a and 20b formed in the table 12 are formed at substantially the center of the positioning jig 16.
A step part 24 is formed on the wall part constituting 2b. A tubular member 26 is inserted into the holes 22a and 22b. The cylindrical member 26 has a flange portion 28 protruding outward in the radial direction at a lower portion thereof. The flange portion 28 engages with the step portion 24 and is fixed to the positioning jig 16 with a screw 30.
As can be easily understood from FIG. 3, the upper end of the tubular member 26 protrudes upward from the inclined upper surface 16a. A step 3 is provided near one edge of the positioning jig 16.
2, a pin member 36 is inserted into the concave portion 34. A flange portion 38 is formed on the outer periphery of the pin member 36, and the flange portion 38 is
And the pin member 36 is positioned. The upper portion of the pin member 36 is a smooth hemispherical bulging surface.

The cylinder head assembling apparatus 10 is shown in FIG.
As shown in FIG. 5, the cylinder head transport device 40, the clip mounting device 42, the spring seat mounting device 44, the retainer mounting device 46, and the cylinder head unloading device 48 are arranged to be displaced by a predetermined angle around the table 12. Has been established.

Therefore, the clip mounting device 42 according to the embodiment of the present invention will be described in detail below.

The clip mounting device 42 has a parts feeder 47, and a passage 49 is connected to a parts outlet of the parts feeder 47. As shown in FIGS. 4 and 5, the passage 49 has a groove 50 along its longitudinal direction.
A clip 52 made of a metal material and formed in a C-shape so as to have elasticity is transported from the parts feeder 47 in the groove portion 50 in a line.

In the vicinity of the passage 49, a supply device 54 for the clip 52 is provided. The supply device 54 is a frame 5
A long substrate 58 is fixed to the frame 56 via an attachment member 57 bent in an L-shape. The substrate 58 is disposed adjacent to the end of the passage 49. A groove 62 communicating with the groove 50 of the passage 49 is formed at the upper center of the substrate 58.
2. Grooves 66a to 66d narrower than groove 62 in parallel with 2
Is formed. The grooves 66a to 66d are formed deeper than the grooves 62.

The substrate 58 has support members 6 at both ends.
8a, 68b are fixed, and the respective support members 68a, 68
b is provided with stoppers 69a and 69b. In this case, the first cylinder 70 is fixed to one of the support members 68b. A columnar member 72 is fixed parallel to the substrate 58 so as to bridge the support members 68a and 68b. A plurality of grooves 74a to 74d are formed on the columnar member 72 in parallel with each other on an extension of the grooves 66a to 66d.

At the upper center of the columnar member 72, a light emitting portion 76 is fixed so as to project toward the substrate 58. At the lower center of the columnar member 72, as shown in FIGS.
A light receiving unit 78 is fixed to face the light emitting unit 76.

A long mounting member 84 is fixed to the surface of the substrate 58 facing the columnar member 72 along its longitudinal direction, and a rail member 86 is fixed to the mounting member 84 (see FIG. 4). ). As shown in FIG. 7, the rail member 86 is provided with a slidable mounting table 90 having a cross section bent substantially in the shape of a crank. It is inserted into the gap with the substrate 58. The cylinder rod 92 of the first cylinder 70 is engaged with one end of the mounting table 90. Therefore,
When the first cylinder 70 is energized, the mounting table 90
Is displaced in a direction crossing the passage 49. Both ends of the mounting table 90 can freely contact the stoppers 69a and 69b.
Displace within the range of a and 69b.

As shown in FIGS. 4 and 5, groove-shaped mounting portions 100a and 100b, into which the clips 52 can be engaged, are formed on the mounting table 90. The mounting section 100 described above
U and U-shaped recesses 94a to 94h are formed at the bottoms of the a and 100b.
When in the position shown in FIG.
d, 74a-74d. The placing section 100a,
100b has grooves 101a and 101b formed in the vertical direction, and when the mounting table 90 is at the position shown in FIG. 13 or FIG. 14, light emitted from the light emitting section 76 passes through the grooves 101a and 101b. The light is received by the light receiving section 78.

As shown in FIG. 8, the clip mounting device 42 has a frame 102 near the supply device 54, and a long substrate 104 extends in the horizontal direction and is fixed on the upper portion of the frame 102. Is done. Rail members 106a and 106b are fixed to the substrate 104 in parallel with each other along the longitudinal direction, and stoppers 107a and 107b are provided at both ends of the rail member 106a. As shown in FIG. 10, guide members 108a and 108b are slidably engaged with the rail members 106a and 106b. A displacement plate 110 is fixed to the guide members 108a and 108b (see FIG. 9). A second cylinder 112 is mounted on the surface of the displacement plate 110 facing the substrate 104, and a cylinder rod of the second cylinder 112 is provided. As shown in FIG. 8, 114 is fixed near one end of the substrate 104 via a plate 115. Therefore, the second cylinder 112
Is displaced, the displacement plate 110 is displaced in the directions of arrows D and E.

The displacement plate 110 is provided with a gripping device 116 for the clip 52. The holding device 116 is shown in FIG.
As shown in FIG. 10, a plate-like member 118 fixed to one end of the displacement plate 110 is included.
Plates 122a and 122b are fixed to the upper and lower portions of the plate. The cylinder rods 124a, 124 of the third cylinder 120 are located between the respective plates 122a, 122b.
The housing 126 of the third cylinder 120 is provided on the cylinder rods 124a and 124b so as to be slidable in the directions of arrows F and G. The plate 12
2b is provided with a stopper 128, and the housing 1
When 26 is displaced in the direction of arrow F, it comes into contact with the stopper 128 to regulate the end position of the housing 126.

A vertically elongated plate-like member 130 is fixed to the housing 126, and a plate-like member 134 is attached to the lower end of the plate-like member 130 via an L-shaped mounting member 132.
Is fixed. Fourth cylinders 136a and 136b are fixed to the lower surface of the plate-like member 134 so as to face each other, and brackets 1 are attached to the ends of the fourth cylinders 136a and 136b.
Stoppers 140a, 140b via 38a, 138b
Is provided. The fourth cylinder 136a, 136
The cylinder rods 142a and 142b of "b" are arranged in a direction approaching or separating from each other. Each of the cylinder rods 142a and 142b has an L-shaped sliding member 1
44a and 144b are fixed, and the sliding members 144a and 144b are fixed.
44b is slidably provided via linear guides 146a and 146b provided below the fourth cylinders 136a and 136b. The sliding members 144a, 144b
The air chuck 148a extends vertically in the lower part of
148b is fixed. The air chuck 148a, 1
48b includes grip portions 150a to 150d, and when the air chucks 148a and 148b are urged, the grip portions 15a to 150d are gripped.
0a to 150d are displaced in directions approaching or separating from each other. A columnar rod-shaped member 152 extends and is fixed to each of the gripping portions 150a to 150d in the vertical direction. A groove 154 is formed in the lower part of each bar-shaped member 152 in the circumferential direction.

As shown in FIG. 8, the displacement plate 110 is provided with a pressing device 160 adjacent to the gripping device 116. The pressing device 160, as shown in FIGS. A long plate-shaped member 162 is fixed to an upper portion of the plate 110. As shown in FIG. 8, a fifth cylinder 166 is fixed to one end of the plate-like member 162 via an attachment member 164 formed in an L-shape. On the upper part of the plate-like member 162, a rail member 16 is provided along its longitudinal direction.
8 is fixed, and the rail member 168 has a guide member 17.
0 is slidably provided. A slider 174 having horizontal surfaces 172a and 172b having different heights depending on the steps is fixed to the guide member 170.
Is connected to the cylinder rod 1 of the fifth cylinder 166.
76.

As shown in FIGS. 11 and 12, the pressing device 160 includes a support plate 180 fixed to the displacement plate 110 via a plurality of columnar members 178 and parallel to the displacement plate 110. The support plate 180 includes a support member 182.
a, 182b are fixed parallel to each other. The support member 1
A plate-like member 184 is bridged between 82a and 182b in parallel with the plate-like member 162, and the plate-like member 184 is connected to the sixth end via an attachment member 186 at one end like the plate-like member 162. The cylinder 188 is fixed, and the plate-shaped member 1 is fixed.
The rail member 190 and the guide member 19
2, a slider 194 is provided. The slider 1
94 have horizontal surfaces 196a, 1
96b are formed. The cylinder rod 198 of the sixth cylinder 188 is engaged with the slider 194.

Referring to FIG. 12, on both surfaces of the support plate 180, the seventh cylinders 200a and 200 extend vertically.
0b is fixed to the cylinder rods 202a and 202b of the seventh cylinders 200a and 200b.
The plate-like members 206a, 206b formed in the vertical direction through the a, 204b extend in parallel with the support plate 180. Therefore, the seventh cylinders 200a, 200b
Is biased, the plate-like members 206a and 206b are displaced in the directions of arrows F and G. The plate-like members 206a, 20
6b, stoppers 210a, 210b are provided via mounting members 208a, 208b, and the plate-like member 2 is provided.
06a and 206b are displaced in the direction of arrow F, one stopper 210a is moved to the horizontal plane 196a of the slider 194.
Or 196b, the other stopper 21
0b is a horizontal surface 176a or 17 of the slider 174.
6b, abutting on one of the plate-like members 206a,
The end position of 206b is regulated.

The lower portions of the plate-like members 206a and 206b are gradually narrowed through a slope portion 212, and the lower end portion formed as a horizontal plane has an L-shaped bent mounting member 2.
Eighth cylinder 216a, 21 via 14a, 214b
6b are coaxially fixed to each other. The eighth cylinder 2
Plate-like stoppers 218a are provided at the ends of 16a and 216b.
218b is fixed. The eighth cylinder 216a,
At the lower part of 16b, there are provided sliding members 220a and 220b formed in an L-shape via a linear guide (not shown), and the sliding members 220a and 220b have cylinder rods 222a of the eighth cylinders 216a and 216b. 22
2b is fixed. Support members 224a and 224b are fixed to the lower portions of the slide members 220a and 220b, and tapered holes 226a and 226b whose diameters expand downward are formed at the ends of the support members 224a and 224b. Ninth cylinders 228a and 228b extending vertically are fixed to the upper portions of the support members 224a and 224b, and the cylinder rods 23 of the ninth cylinders 228a and 228b are fixed.
Reference numerals 0a and 230b are configured to be displaceable inside the holes 226a and 226b.

Below the support members 224a and 224b, there are provided cylindrical collets 232a and 232b formed of an elastic metal material.
Flanges 234a, 23 formed on top of 232b
4b is fixed to the support members 224a and 224b.
The holes 236a, 23 of the collets 232a, 232b
6b are the holes 226a, 22 as shown in FIG.
6b and the collets 232a, 232b
Holes 236a, 236b are sloped portions 238a, 238b.
The diameter is reduced downward through, and the lower end is further stepped 240a,
The diameter is reduced through 240b. The collet 232
As shown in FIG. 11, a plurality of slits 242 are formed in the upper portions a and 232b from the lower end thereof, and thus the lower portions of the collets 232a and 232b are elastically deformable in the radial direction. The collet 232a, 232
b, grooves 244a, 244b are formed at the lower end of the outer periphery, and ring members 246a, 246b formed of a rubber material are engaged with the grooves 244a, 244b. It is biased inward.

As shown in FIGS. 12 and 15, a rod-shaped clip guide 250 is removably inserted into the collets 232a and 232b. The clip guide 2
The upper part of 50 gradually reduces its diameter in a tapered shape upward,
On the other hand, the lower portion of the clip guide 250 is formed so as to gradually expand in diameter in a tapered shape downward, and a concave portion 252 is formed at the lower end portion in the axial direction. A step 254 is formed in the wall of the concave portion 252, and the diameter of the step 254 is increased downward.
An upper portion of a sleeve 286 described later is freely engageable with 54.

The clip mounting device 42 according to the present embodiment
Is basically configured as described above. Next, the cylinder head 14 will be described.

As shown in FIG. 3, the cylinder head 14 has a large diameter portion 260 formed with a large diameter and a large diameter portion 26.
Reduced diameter portion 264 reduced in diameter from 0 through step portion 262
Are formed, and a plurality of heat dissipating fins 266 are formed on the outer periphery thereof. A concave portion 268 forming a combustion chamber is formed on the lower surface of the cylinder head 14, and an intake hole 270a and an exhaust hole 270b are formed to communicate with the concave portion 268. The axial direction of each of the intake hole 270a and the exhaust hole 270b is deviated by a predetermined angle with respect to the bottom 272 of the cylinder head 14. The intake hole 270a and the exhaust hole 270b
Although not shown, it communicates with the outside of the cylinder head 14. The intake hole 270a and the exhaust hole 270b communicate with the concave portion 276 formed in the reduced diameter portion 264 through the holes 274a and 274b. A circular protrusion 280 is formed on the bottom 278 forming the recess 276 so as to surround the openings of the holes 274a and 274b. Also,
The bottom 278 has a hole 282 through which a push rod (not shown) is inserted. Reference numeral 284
Is a screw hole to which a column supporting a rocker arm (not shown) is fastened.

A substantially cylindrical sleeve 286 is inserted through the holes 274a and 274b, and grooves 288a and 288b are formed on the outer periphery of the sleeve 286 along the circumferential direction. A tapered portion 290 is formed on the upper portion of the sleeve 286 to reduce the diameter upward. The holes 256 of the sleeve 286 have valves 292a and 292b.
Are slidably inserted. When the valve stems 294a and 294b slide in the direction of the arrow G, the valves 292a and 292b respectively move the intake holes 270a and the exhaust holes 270.
Close b. A groove 296 is formed in the upper part of the valve stem 294a, 294b in the circumferential direction.

The cylinder head 14 has a plurality of holes 298 through which screws are inserted when the cylinder head 14 is assembled to an engine.

The cylinder head 14 is placed on the positioning jig 16, and the pin member 3 is inserted into the hole 298.
6 is inserted and positioned. At this time, the valve 2
92a and 292b are in contact with the upper part of the tubular member 26,
The valves 292a and 292b do not fall off the sleeve 286. Further, since the positioning jig 16 is inclined at a predetermined angle, the valve stems 294a, 294
Reference numeral 4b stands upright in the vertical direction.

Next, the operation of the clip mounting device 42 will be described in relation to the clip mounting method according to the embodiment of the present invention.

First, as shown in FIGS. 4 and 5, the clip 52 is supplied from the passage 49 to the groove 62 of the supply device 54. When the first cylinder 70 is urged in the direction of arrow C and the mounting table 90 is displaced to the position shown in FIG.
“a” communicates with the groove 62, and the light emitted from the light emitting unit 76 is received by the light receiving unit 78 through the groove 101a (see FIG. 7). When the clip 52 is conveyed from the passage 49 to the mounting portion 100a, the light emitted from the light emitting portion 76 is
2, the light is not received by the light receiving unit 78, so that it is detected that the clip 52 is mounted on the mounting unit 100a. Next, when the first cylinder 70 is urged in the direction of arrow B to displace the mounting table 90 to the position shown in FIG.
The clip 52 is mounted on the mounting portion 100b. Also at this time, the light emitted from the light emitting unit 76 is blocked by the clip 52, and it is detected that the clip 52 has been placed on the placement unit 100b. As described above, the two clips 52 are mounted on the mounting table 90. Then, the first cylinder 70 is urged again, and the mounting table 90 is displaced to the position shown in FIG.

Next, the clip 52 is gripped by the gripping device 116. In this case, the fourth cylinders 136a, 136
By urging 6b, the gap between the air chucks 148a and 148b is displaced so as to be separated by the gap corresponding to the placement sections 100a and 100b of the supply device 54. After the preparatory steps as described above, as shown in FIG. 8, the displacement plate 110 is displaced to move the gripping device 116 above the supply device 54. At this time, the pressing device 160 is located above the cylinder head 14. When the gripping portions 150a to 150d are displaced in the direction of arrow F by urging the third cylinder 120,
As shown in FIG. 7, the distal end of the rod-shaped member 152 engages with the grooves 66 a to 66 d and 74 a to 74 d of the supply device 54. When the air chucks 148a and 148b are urged, the grips 150a and 150b, 150c and 150d approach each other, and the clip 52 engages with the groove 154 of the rod 152. For this reason, the clip 52 is
150d. And the third cylinder 1
Gripping portion 150 on which clip 52 is gripped by biasing 20
a to 150d are displaced in the direction of arrow G.

At this time, the clip guide 250 is placed on the sleeve of the cylinder head 14. In this case, as shown in FIG.
6. The sixth cylinder 188 is biased to move the slider 174 in the direction of arrow D and the slider 194 in the direction of arrow E. Further, the eighth cylinders 216a and 216b are urged to displace the collets 232a and 232b so as to be separated from each other by an interval corresponding to the valve stems 294a and 294b of the cylinder head 14 (see FIG. 12).

After the preparatory steps described above, the seventh cylinders 200a and 200b are urged to move the plate-like members 206a and
06b is displaced in the direction of arrow F, the stopper 210a
Is located on the horizontal surface 196a of the slider 174,
b contacts the horizontal surface 172a of the slider 174, and the plate members 206a and 206b are positioned. At this time, the valve stem 2 depends on the model of the cylinder head 14.
When the heights of the plates 94a and 294b are different, if the slider 174 is previously displaced in the direction of arrow E and the slider 194 is displaced in the direction of arrow D, the end positions of the plate-like members 206a and 206b change.

Then, as shown in FIG.
Clip guide 2 mounted inside 32a, 232b
The upper ends of the valve stems 294a and 294b are inserted into the recesses 252 of the sleeve 50, and the upper end of the sleeve 286 is inserted into the step 25.
4 is engaged. At this time, the position of the lower end of the clip guide 250 substantially coincides with the upper wall forming the groove 288a of the sleeve 286.

Next, the ninth cylinders 228a and 228b are urged to press the upper end of the clip guide 250 with the respective cylinder rods 230a and 230b, and at the same time, the seventh cylinders 200a and 200b are urged to make the plate-like member 206a,
When the 206b is displaced in the direction of arrow G, as shown in FIG.
2b, and is placed on the upper part of the sleeve 286.

Then, the second cylinder 112 is urged to displace the grip portions 150a to 150d holding the clip 52 above the cylinder head 14. At this time, the fourth
By urging the cylinders 136a and 136b,
And 150b, 150c, and 150c and 150d, respectively.
It is displaced so as to be separated by an interval corresponding to 94a and 294b. By urging the third cylinder 120, the gripper 150
When a to 150d are displaced in the direction of arrow F, the clip 5
The upper part of the clip guide 250 is inserted into the inside of the clip guide 250. The air chucks 148a and 148b are urged to
a and 150b, and 150c and 150d are displaced in directions away from each other, as shown in FIG.
Engages with the outer periphery of the clip guide 250. Then, the gripping device 116 is displaced in the direction of arrow G by urging the third cylinder 120.

Next, as shown in FIG.
12, the pressing device 160 is displaced above the cylinder head 14, and the seventh cylinders 200a, 200b are urged to displace the collets 232a, 232b in the direction of arrow F. The clip guide 250 is inserted, and the collets 232a, 232
The inner circumference of the lower end of b contacts the outer circumference of the clip guide 250. When the collets 232a and 232b are further displaced in the direction of arrow F, the collets 232a and 232b expand radially outward due to the tapered outer periphery of the clip guide 250. In this case, the lower ends of the collets 232a and 232b abut against the clip 52, and the clip 52 slides on the outer circumference of the clip guide 250 in the direction of arrow F while expanding its diameter. Then, through the lower end of the clip guide 250, as shown in FIG.
8a. At this time, the collet 232a,
The lower portion of 232b is urged by the ring members 246a and 246b in the direction of reducing the diameter, so that the clip guide 250 is mounted inside the collets 232a and 232b. When the collets 232a and 232b are displaced in the direction of arrow G by urging the seventh cylinders 200a and 200b, the clip guide 250
232b and removed from sleeve 286.

As described above, the clip 52 is mounted on the groove 288a of the sleeve 286.

Then, the clip 52 is supplied from the parts feeder 47 to the supply device 54, and the gripping device 116 grips the clip 52 to be mounted on the next cylinder head 14. For this reason, it is possible to attach the clip 52 to the cylinder head 14 continuously.

[0046]

According to the clip mounting method and apparatus according to the present invention, the following effects and advantages can be obtained.

Since the clip supplied from the parts feeder is mounted on the sleeve of the cylinder head by the mounting device, a dedicated worker is not required, so that the production cost can be reduced and the production time can be shortened. .

Further, since two clips are supplied from the clip supply device, two clips can be simultaneously attached to the cylinder head, and the production time can be further reduced.

Further, the mounting device has two grips, a collet, and a clip guide, each of which can be displaced in accordance with the distance between the sleeves of the cylinder head. Even if the model is changed, the clip can be mounted with the same device. Therefore, since a mounting device corresponding to the model is not required, a unique effect that the production cost is further reduced can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing a cylinder head assembling device in which a clip mounting device according to an embodiment of the present invention is used.

FIG. 2 is a schematic plan view showing a table of the cylinder head assembling apparatus of FIG. 1;

FIG. 3 is a longitudinal sectional view showing a relationship between a cylinder head and a positioning jig used in the clip mounting method according to the embodiment of the present invention.

FIG. 4 is a perspective view showing a supply device used in the clip mounting device according to the embodiment of the present invention.

FIG. 5 is a plan view of the supply device of FIG. 4;

FIG. 6 is a front view of the supply device of FIG. 4;

FIG. 7 is a sectional view taken along line VII-VII of the supply device of FIG. 5;

FIG. 8 is a schematic front view of the clip mounting device according to the embodiment of the present invention.

FIG. 9 is a perspective view of a gripping device used in the mounting device of FIG. 8;

FIG. 10 is a side view of the gripping device of FIG. 9;

FIG. 11 is a perspective view of a pressing device used in the mounting device of FIG.

FIG. 12 is a side view of the pressing device of FIG. 11;

FIG. 13 is a plan view showing a method of using the supply device of FIG. 4, in a state where the mounting portion is displaced in the direction of arrow C;

14 is a plan view showing a method of using the supply device of FIG. 4, in a state where the mounting portion is displaced in the direction of arrow B. FIG.

FIG. 15 is a partially enlarged longitudinal sectional view showing a method of using the pressing device of FIG. 11, in which a grip guide is attached to a sleeve by a collet.

FIG. 16 is a partially enlarged longitudinal sectional view showing a method of using the pressing device of FIG. 11, in a state where a grip guide is engaged with a sleeve.

[Explanation of symbols]

Reference Signs List 10: Cylinder head assembling device 14: Cylinder head 42: Clip mounting device 52: Clip 54: Supply device 70, 112, 120, 136a, 136b, 166
188, 200a, 200b, 216a, 216b, 2
28a, 228b Cylinder 100a, 100b Mounting part 110 Displacement plate 150a to 150d Grip part 160 Pressing device 232a, 232b Collet 250 Clip guide 286 Sleeve 294a, 294b
… Valve stem

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B27F 7/17 B23P 19/00-19/08

Claims (5)

(57) [Claims] 1. A step of gripping a clip mounted on a mounting table by a gripping part provided in a clip mounting device, and mounting a rod-shaped clip guide having a tapered outer periphery on a sleeve of a cylinder head. Moving the grip portion to engage the clip with the clip guide; displacing a collet provided in a clip mounting device to insert the clip guide through the collet; Pressing the outer periphery of the clip guide to move the outer periphery of the clip guide, thereby attaching the clip to a groove formed on the outer periphery of the sleeve; and removing the clip guide from the sleeve with the collet. How to attach the clip. 2. The clip mounting method according to claim 1, wherein a step of continuously supplying the clip from the parts feeder to the passage before the step of gripping the clip, and displaceable in a direction intersecting the passage. A first mounting unit that displaces the mounting table provided on the mounting table to one side and connects the groove of the passage to one mounting unit provided on the mounting table, and mounts a clip on the one mounting section. And a second mounting step of displacing the mounting table to the other, connecting the groove of the passage to the other mounting section provided on the mounting table, and mounting a clip on the other mounting section. A method for mounting a clip, comprising: 3. A clip guide having a grip portion, a rod shape, an outer periphery of which is formed in a tapered shape, and a lower end portion formed with a hole or a concave portion with which a sleeve of a cylinder head is engaged. A collet, which is configured to be slidable and the clip guide is detachable, an urging means for detaching the clip guide from the collet and engaging the sleeve with the sleeve, the grip portion, the collet, and the urging means. A driving means for integrally displacing the clip in the vertical direction and the horizontal direction, wherein the clip is inserted into the clip guide engaged with the sleeve by the gripping portion, and the clip is pressed by the collet to attach the clip to the sleeve. A clip mounting device, wherein the clip guide is detached from the sleeve with the collet while being mounted. 4. The clip mounting apparatus according to claim 3, wherein the clip, the collet, and the urging means are provided two each, and each of the grips, the collet, and the urging means are provided. A clip mounting device comprising a driving means for displacing in a direction approaching or separating from each other, wherein a distance between the grip portion, the collet, and the urging means can be adjusted according to the type of cylinder head. 5. A clip mounting device according to claim 3, wherein said passage is provided at a groove communicating with a parts feeder and having a groove to which the clip is continuously supplied, and provided at an end of said passage. A mounting table displaceable in a direction intersecting with the passage; and two mounting portions provided on the mounting table and on which the clip is mounted. The clip is placed on the mounting portion by the groove of the passage communicating with the clip, and the clip is placed on the other mounting portion by the displacement of the mounting table to the clip on the other mounting portion. A clip mounting device characterized by being held by the holding portion.